A Fortin style mercury barometer from well-known Australian instrument maker, A.L.Franklin. The column of mercury is supported by the pressure of air on the free surface of the mercury in the cistern at the bottom. Its level can be adjusted to a datum using the screw at the bottom and then the height of the column can be accurately read off using a vernier scale at the top. Attached to a backing timber board with a thermometer. Thermometer made by Townson and Mercer. Metal vertical hanging eyelet.A.L.Franklin, established 1919, scientific instrument makers, Brookvale, NSW; A.L Franklin Sydney No. 457; Townson and Mercer Distributors Pty Ltd throughout Aust and NZ.;weather station, soil science, science, student outside activities, measurements, air pressure, atmospheric pressure, air temperature, artifact

flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, warrnambool lighthouse register of meteorological observations 1902 Jan, meteorological observations, book, Warrnambool Lighthouse, Meteorological ObservationWarrnambool Lighthouse Register of Meteorological Observations 1902 Jan Handwritten entries in columns of Air Pressure, Temperature, Wind Velocity and Direction, Cloud, Rain and Remarks, Signed D Lindsayflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, meteorological observations, book, warrnambool lighthouse, meteorological observation, warrnambool lighthouse register of meteorological observations 1902 jan

Register of Meteorological Observations at Warrnambool Lighthouse for the following months. mber 1905. 1902 - all months, 1903 - Jan, Feb, April, May, June, July, Aug, Oct, Nov, Dec, Mar, 1905 - Jan. Feb, Mar, Apr, May, Jun, Jul, Aug, Sept, Oct, Nov, Dec, 1906- Jan, Feb, Mar, May, Jun, July, Aug, Sep, Oct, Nov, Dec, 1907 - all months.Register, marble pattern cover on March and Septe. Warrnambool Lighthouse Register of Meteorological Observations, 1902 Apr Recorded information of meteorological events at the Warrnambool Lighthouse, giving details of Air Pressure, Temperature, Wind Velocity and Direction, Cloud, Rain and RemarksHandwritten entriesflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, warrnambool lighthouse register of meteorological observations 1902 apr, meteorological observations, book, warrnambool lighthouse, meteorological observation

This tuyere (word from French origin) was used by professional blacksmiths and or cattlemen before and during the Kiewa Hydro Electricity Scheme was being constructed. The need to use a furnace or forge in the shaping of metal rods, horse shoes and pipes is both a rural necessity and a construction, on site requirement. The "inventiveness" of cattlemen and construction workers to produce metal objects not available "off the shelf" is one of the inherent traits not only of rural self sufficiency but in the "pioneer" days of rural isolation one of survival.This tuyere is of great significance to the Kiewa Valley and its regions because it highlights one of the greatest strengths of the rural (especially isolated) life and its folk living there, and that is the great human factor of adaptability and survival techniques in sometimes harsh and demanding environmental circumstances. The inventiveness and the attitude, "she'll be right mate", demonstrates life on the land where specialised blacksmith activities can be found in non "professionals" because of the fact that "someone" has to do the job. This is one of the differences between country "rural" life and that found in cities and larger towns.This iron cone shaped tuyere has a small hole (diamenter 25mm) starting within an ever enlarging cone (amplification of the air pressure going through) delivering varying hot or extremely hot air into a furnace or hearth which intensifies the heat to allow the "shaping" of metal objects. The larger "flared" cone extension allows for the directed air to be spread and not concentrated.blacksmith tool, tue, bellows, fashioning metal, forge manufacturing process

Large object with air pipe and pressure gauge. Large metal gear Has ValvesNew Century auto electric carbonator Cowser Menck & Co makes Melb & Sydney

Air gauge of the type use in straight air braked trams to indicate to the driver the air pressure in the main air reservoir tank. Has red marks for 60 and 70 psi or pounds per square inch. Made by General Electric at their Schenectady NY works. Demonstrates an air gauge of the type fitted to trams. Original use not known, collected by the donor from a swap meet.Air gauge - steel case with glass, needle and pipe - 12mm. Case has a red or chocolate paint colour.tramways, trams, air compressors, brake cylinders, brake valves, air gauges, mmtb, general electric

An aneroid barometer is an instrument used for measuring pressure without the use of a liquid. Invented in 1844 by French scientist Lucien Vidi, the aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule), which is made from an alloy of beryllium and copper and responds to changes in air pressure.An example of a widely used type of barometer.A brass aneroid barometer with a white face.Manufactured by C. Wermer and Co, Melbournebarometer, aneroid barometer, c. wermer

An aneroid barometer is an instrument used for measuring air pressure as a method that does not involve liquid. Invented in 1844 by French scientist Lucien Vidi, the aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule), which is made from an alloy of beryllium and copper. The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer. Many models include a manually set needle which is used to mark the current measurement so a change can be seen. This type of barometer is common in homes and in recreational boats. It is also used in meteorology, mostly in barographs and as a pressure instrument in radiosondes.5 inch Aneroid barometer on wooden basebarometer, aneroid

Tramcar air brake gauge, showing pressure in the brake pipe? main reservoir? ballarat, tramcars, air brake, gauge

Since the mid-1600s, barometers have been a useful tool for boaters to measure air pressure in order to predict weather changes out on the sea. A change in pressure causes the dial's indicator hand to move. Aneroid barometers have a circular display face much like a clock that indicates the current atmospheric pressure. Part of a collection of objects belonging to Robert Hodgson. He was a fisherman and part of Shore Line Engineering.A circular white round face with black numbers around the edge starting at 80 and going up in 1 number increments to 106. Language is in Russian. A thermometer is on the face of the lower half starting at -10 degrees Celsius and up to 40 degrees Celsius going up in 10 number increments. A glass panelsits above the whit face and it is held together by a metal edge. The back of the barometer is black bakelite.

Used on tramcars - pressed against the wheel by air or hand pressure to stop a tramcar.Demonstrates a brake shoe - cast iron - part of a tram car braking system.Tramcar Brake Shoe in worn and broken conditionballarat, tramcar, brake shoe

This instrument measures elevation by sensing minute changes in barometric air pressure relative to a fixed datum point at sea level or a known elevation, such as the starting point of a major town during a road survey, and has an accuracy of +/- 20 feet when used in experienced hands. The finely divided scale around the perimeter of the face is marked from 0 to 6000 feet elevation and 25 to 31 inches of mercury (Hg) for barometric pressure The single fine counter-balanced hand or pointer rotates anti-clockwise with increasing elevation and decreasing pressure. The label "compensated" indicates that the instrument is constructed to compensate for the effect of temperature changes on the accuracy of readings. Surveyor's Pocket Altimeter - Aneroid Barometer Type Branded N H Seward, Melbourne. Made in England. With leather carrying case and strap.forest measurement, forests commission victoria (fcv), surveying

Bushfire behaviour is influenced by many factors including temperature, relative humidity (RH), forest type, fuel quantity and fuel dryness, topography and even slope. But wind has a dominant effect on the Rate of Spread (ROS), as well as fire size, shape and direction. Wind speed can be measured using a variety of anemometers. This simple hand-held Venitimer was made by Elvometer in Sweden, probably in the 1960s, and was designed principally for mariners. Some models have a compass in the handle to measure wind direction. The small inlet hole on the side is faced towards the wind and air pressure lifts a small plastic disk inside. The upper tube is tapered so that as wind speed increases more air escapes and stronger winds are needed to raise the disk. Wind speed in MPH is read from the side of the clear plastic tube. The waterproof container has instructions on use and conversion scales. Simple and robust device.Hand-held anemometer Instructions on use on containerbushfire, forests commission victoria (fcv)

This chronometer was made around 1936 and has been on display at Flagstaff Hill for over 40 years as part of the exhibit of the ‘Reginald M’, an Australian-built, 19ss, coastal trader vessel. A chronometer is an accurate mechanical instrument used for measuring time. It is constructed carefully to remain stable even under the changing conditions of seafaring life such as temperature, humidity and air pressure. The Master or Navigator of a ship could use the chronometer and the positions of celestial bodies to calculate the ship’s latitude at sea. In 1905 the business Chronometerwerke GmbH was formed in Frankfurt, Germany, to supply the country with high-quality mechanical chronometers and ship clocks for their maritime trade, making the country independent of other international suppliers such as those in England. In 1938 the firm was renamed Wempe Chronometerwerke. The business continues today. Its products now include its well-known chronometers, battery-powered ship clocks, ship’s bell clocks, barometers, barographs, thermometers, hygrometers, comfort meters to measure temperature and humidity, and wristwatches. The company also performs chronometer testing facilities for the State’s Weights and Measures office. The article written by Givi in July 2022 “The Basics of Marine Meteorology – a Guide for Seafarers” refers to the weather’s signs and patterns being repeated over and over, and the recording of these observations helps forecasters predict changes in the weather. The chronometer is an example of a mechanical navigational marine instrument in use in the early to the mid-20th century. The maker is significant as part of a German government initiative to be self-sufficient in the production of good quality marine technology. This chronometer is significant as part of the exhibit, the Australian-built vessel, 1922 coastal trader ‘Reginald M’, listed on the Australian Register of Historic Vessels and on display for over 40 years.Marine chronometer or marine clock, brass case, glass cover, Roman numerals, 24-hour numbers beside them. Two black hands, a keyhole for winding and ventilation holes in the side. The base has a collar with four machined mounting holes. Inscriptions are on the clock’s face."Made in Germany" and "WEMPE / CHRONOMETERWERKE / HAMBURG"flagstaff hill, flagstaff hill maritime museum and village, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, marine meteorology, horology, chronometer, marine technology, latitude, marine navigation, mechanical instrument, scientific instrument, ship clock, chromometerwerke gmbh, wempe chronometerwerke, marine clock

Standard diving dress (also known as hard-hat or copper hat equipment, or heavy gear) is a type of diving suit that was formerly used for all relatively deep underwater work that required more than breath-hold duration, which included marine salvage, civil engineering, pearl shell diving and other commercial diving work, and similar naval diving applications. Standard diving dress has largely been superseded by lighter and more comfortable equipment. Standard diving dress consists of a diving helmet made from copper and brass or bronze, an air hose from a surface-supplied manually operated PUMP or low pressure breathing air compressor, a waterproofed canvas suit, a diving knife, and weights to counteract buoyancy, generally on the chest, back and shoes. Later models were equipped with a diver's telephone for voice communications with the surface.Hand operated divers air pump for one or two diversdiving, air pump

Louis Heinrici, Germany, circa 1900 a small Stirling type hot air engine in which a body of air is worked constantly, being alternately heated and cooled during each revolution of the crankshaft. Heinrici hot air engines are of the valveless, closed cycle type, generally called Stirling cycle engines, after Robert Stirling, the Scottish Presbyterian minister who pioneered their development in the early 1800's. They operate by alternately heating and cooling a quantity of air, called the working fluid, contained in the engine's internal spaces. Heat is applied externally and passes through the cylinder wall, heating the working fluid, which is then expanded against a piston to do mechanical work. After heating and expanding, the working fluid is moved to a cool space where it cools and contracts before being returned to the hot space for the cycle to repeat. It has a displacer (just a loose piston), below and in the same cylinder as the power piston to which it is connected via cranks and linkages so as to lead by 90degrees of crankshaft angle. The displacer space and the piston space are connected by the annular gap around the loose fitting displacer so that the working fluid moves between these spaces and changes volume by the appropriate ratio as the engine rotates. Because they have no valves and experience no sudden pressure changes, Stirling engines are noted for quietness and reliability. Heinricis use air at atmospheric pressure for their working fluid, but for higher specific output (power for size) and better efficiency, modern Stirling cycle engines use pressurised gas- air, nitrogen, helium or hydrogen.Historic - Hot Air Engine - MotorHot Air Motor made of Steel with two drive wheels. a small Stirling type hot air engine in which a body of air is worked constantly, being alternately heated and cooled during each revolution of the crankshaft. Heinrici Motorheinrici hot air motor, puffing billy

A foghorn is a device that uses sound to warn of navigational hazards like rocky coastlines, or boats of the presence of other vessels, in foggy conditions. The term is most often used with marine transport. When visual navigation aids such as lighthouses are obscured, foghorns provide an audible warning of rocky outcrops, shoals, headlands, or other dangers to shipping. An early form of fog signal was to use a bell, gong, explosive signal or firing a cannon to alert shipping. From the early 20th century an improved device called the diaphone was used in place of these other devices, The diaphone horn was based directly on the organ stop of the same name invented by Robert Hope-Jones, creator of the Wurlitzer organ. Hope-Jones' design was based on a piston that was closed only at its bottom end and had slots, perpendicular to its axis, cut through its sides, the slotted piston moved within a similarly slotted cylinder. Outside of the cylinder was a reservoir of high-pressure air. Initially, this air would be admitted behind the piston, pushing it forward. When the slots of the piston aligned with those of the cylinder, air passed into the piston, making a sound and pushing the piston back to its starting position, whence the cycle would be repeated. This method of producing a low audible sound was further developed as a fog signal by John Northey of Toronto and these diaphones were powered by compressed air produced by an electric motor or other mechanical means that admitted extremely powerful low-frequency notes. The example in the Flagstaff collection is an early cased and portable diaphone used on pleasure or sailing craft. By manually turning the crank handle air is produced and fed into valves that direct air across vibrating metal reeds to produce the required sound. in foggy weather, fog horns are used to pinpoint a vessels position and to indicate how the vessel is sailing in foggy conditions. One blast, when sailing on starboard tack and two blasts, when sailing on a port tack and three dots, when with wind is behind the vessel. Since the automation of lighthouses became common in the 1960s and 1970s, most older foghorn marine installations have been removed to avoid the need to run the complex machinery associated with them, and have been replaced with an electrically powered diaphragm or compressed air horns. The example in the collection is significant as it was used in the early 19th century for sailing vessels was important but these portable crank fog horns have also been superseded by modern electric varieties. Therefore the item has a historical connection with sailing and maritime pursuits from our past.English Rotary Norwegian Pattern nautical foghorn within a boxed pine varnished case with exposed corner dovetailing, original leather carrying strap, brass side crank, and original copper trumped horn. Card accessory with Directions for Use in both English and French.Noneflagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, foghorn, maritime technology, maritime communication, marine warning signal, portable foghorn, bellows foghorn, crank handle, robert hope-jones, john northey

Printed Report on Observations of Underground Temperature at Bendigo, by James Stirling, Government Geologist. Report mentions temperature increases as the mines get deeper, temperature of air and rocks, Meteorological Observations at 180 Mine, Bendigo, comparison temperature in other parts of the world and Bendigo, Temperature of air at the 180 Mine, Shenandoah Mine, victoria Quartz, Shamrock, Great Extended Hustlers, Princess Dagmar and United Hustlers and Redan, Daily Variation of Temperature and Pressure of the Air, Temperature of Fault Line, Drawing of Lansell's No 180 Mine showing levels, geological features, graph of Curves of Atmosphere Pressure at 180 Mine Bendigo, graph of Curves of Temperature at 180 Mine Bendigo, Lansell's 180 Mine Rate of Aincrease of Rock Temperature, Comparisons with Observations in other Countries, Observations in November and December 1895, Meteorological Observations at New Chum Railway Mine Bendigo, Kiagram of working 'ends' showing temperatures therein at the New Chum Railway Mine Bendigo Vic, Additional Observations at Lansell's 180 Mine, Shamrock, Princess Dagmar, United Hustlers and Redan and Great Extended Hustler's, Humidity with formula which was adopted, Hygrometer Observations, The Ventilating Currents (and formula), Notes on Anemometer Records 180 Mine, Tabulated List showing Velocities of Air Currents at Various Levels in the 180 Mine Bendigo, Pressure of Air (and formula), Composition of the Air at Lansell's 180 Mine, Shamrock, Princess Dagmar, Gt Extended Hustlers and United Hustlers and Redan and Miners' Complaints. A Richardson name written on the top right corner.A. Richardson, 29 Harrison St., Bendigogold, mining reports, mining reports, report on observations of underground temperature at bendigo, department of mines, james travis, the hon henry foster, james stirling, 180 mine, shenandoah mine, victoria quartz, shamrock, great extended hustlers, princess dagmar, united hustlers and redan, new chum railway mine, north old chum, m grehauf, dr boyd, robt s brain

This is a set of 16 photograph of the Royal Australian Survey Corps’ Johnson Ground Elevation Meter (JGEM) Survey Vehicle taken at the Army Survey Regiment, Fortuna, Bendigo. The JGEM vehicle was extensively used by RA Svy within Australia from the late 1960s. A limited number of Ground Elevation Meter (GEM) station wagon type vehicles were manufactured by General Motors Corporation (GMC) in the USA for the United States Geological Survey, Canada’s mapping agencies, RA Svy and National Mapping (Natmap). The GEM was a four-wheel drive, four-wheel steer vehicle. Four-wheel steering was necessary to avoid systematic errors caused by non-tracking of front and rear wheels on conventionally steered vehicles. The manufacturer substituted the rear axle with a front axle and connected them to form the four-wheel steering mechanism. The two Australian GEM vehicles, referred to as Johnson GEMs (JGEMs) were converted into right-hand drive. After delivery in 1964, acceptance Natmap and RA Svy testing and operator training was undertaken at the Army's School of Military Survey located at Balcombe, Victoria. A small fifth wheel was mounted on a cantilever arm suspension midway between the front and rear wheels on the right side of the vehicle. It was lowered to and raised from its operating position by use of a constant pressure air cylinder. A telescopic bar, suspended between the front and rear axles, provided the reference datum for the angle measurement. The wheel provided the velocity or distance signal through a pulse generator system. A sensitive pendulum mounted on this bar provided the angle measurement for each minute distance traversed. The JGEM contained electromechanical instruments used to determine relative elevations, by trigonometric principles, along a traversed path. These relative elevations were obtained through apparatus which measures the instantaneous angle of inclination of the road and the instantaneous velocity of the meter along such a path. Road routes over which the JGEM operated were planned so that each started and ended as near as practicable to an existing point of known elevation (formally referred to as a level traverse bench mark). The difference in height from the bench mark and the road surface alongside the JGEM’s fifth wheel was measured with a level and staff. Along each route, mapping control photo reference points where new elevation values were required were identified on aerial photographs. Under favourable conditions it was possible to survey as much as 160km in an ordinary working day. The first of RA Svy’s JGEM operations was undertaken in 1:250,000 scale map areas of Queensland. CPL John Hook was the JGEM’s main operator in the early 1970s undertaking operations covering 1:250,000 scale map blocks over northern Victoria and central NSW, each requiring 36 points (9 runs of photography and 4 points across. SPR Lyn Thompson and SPR Bob McDonagh teamed with CPL Hook on some of these JGEM operations. When RA Svy was integrated into the Royal Australian Engineers in 1996, the JGEM vehicle with the Survey Corps collection was donated to its museum. It is believed to be the last of the original manufactured fleet in existence. The JGEM has undergone extensive refurbishment to achieve roadworthiness and is currently housed at The Australian Army Museum of Military Engineering, Hoslworthy Barracks, NSW. It can be viewed by making an appointment with the museum’s curator.This is a set of 16 photograph of the Royal Australian Survey Corps’ Johnson Ground Elevation Meter (JGEM) Survey Vehicle taken at the Army Survey Regiment, Fortuna, Bendigo. The photographs were on 35mm slide film and were scanned at 96 dpi. They are part of the Army Survey Regiment’s Collection. .1) - Photo, colour, c1960s, Johnson Ground Elevation Meter (JGEM) Survey Vehicle .2) - Photo, colour, c1960s, JGEM instrumentation, on-board computer. .3) - Photo, colour, c1960s, JGEM instrumentation. .4) - Photo, colour, c1960s, JGEM instrumentation, on-board computer. .5) - Photo, colour, c1960s, JGEM tyre pressure controller .6) - Photo, colour, c1960s, JGEM rear doors, SGT Geoff Briggs. .7) - Photo, colour, c1960s, JGEM 5th wheel distance/angle measurement device in lowered position, SGT Geoff Briggs. .8) - Photo, colour, c1960s, JGEM 5th wheel distance/angle measurement device in lowered position. .9) & .10) - Photo, colour, c1960s, JGEM tyre pressure system, SGT Geoff Briggs. .11) - Photo, colour, c1960s, JGEM tyre pressure system. SGT Geoff Briggs. .12) - Photo, colour, c1960s, JGEM levelling scope, levelling staff, unidentified technicians. .13) & .14) - Photo, colour, c1960s, JGEM levelling scope, unidentified technician. .15) & .16) - Photo, colour, c1960s, probably survey operation adjusted height plotted on block base sheet. .1P to .16P - Some of the equipment is annotated on the frame of the 35mm slides.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, surveying

This compressor was part of the E.G. Ward Collection. It is connected to the diving suit and boots, also in our collection. Siebe Gorman & Company Ltd was a British company that developed diving equipment and breathing equipment and worked on commercial diving and marine salvage projects. The company advertised itself as 'Submarine Engineers'. It was founded by Augustus Siebe, a German-born British engineer chiefly known for his contributions to diving equipment. Siebe Gorman traded as an engineering firm for over 180 years, from 1819 to 1999. The early success of the business was due to its founder, the Prussian immigrant Christian 'Augustus' Siebe (1788-1872). For business reasons, he applied for and was granted British citizenship in 1856. He was a gifted engineer who was able to translate theoretical problems into practical, working products. During the industrial Victorian period, the business traded as 'A. Siebe's at 145 High Street, Holborn, London, but in 1828, new premises were acquired at 5 Denmark Street, Soho. The family firm produced a wide range of manufactured goods, including paper-making machinery, measuring machinery, water-pumps, refrigeration equipment and diving apparatus. Augustus Siebe specialised in submarine engineering early on, and the company gained a reputation for the manufacture of safe, reliable diving apparatus. Augustus Siebe is best remembered for the development and manufacture of the ‘closed’ Diving Dress based on the ideas of Charles and John Deane, George Edwards and Charles Pasley. Apart from some small modifications to valves and diver communications, the basic 12 bolt ‘closed’ diving dress remained relatively unchanged after the 1870s. Later company successes were also based on innovation, with new products that could be successfully developed and manufactured to high standards. This was largely attributed to the inventive nature, foresight, engineering and entrepreneurial skills of Robert Henry Davis (1870-1965). In 1882, RH Davis joined the company of 'Siebe & Gorman' as a young 11-year-old office boy, and he was to remain with the company until he died in 1965. Augustus Siebe retired in 1869 and handed over the company to a new partnership of Henry H. Siebe (1830-1885) and William A. O'Gorman (1834-1904). The new firm traded as 'Siebe & Gorman' (1870-1879) from premises in and around Mason Street, Westminster Bridge Road, Lambeth, London. The two partners soon recognised the potential of R.H. Davis, and in 1894, aged 24, he became General Manager of Siebe & Gorman. Davis increasingly ran the company until the surviving partner (W.A. Gorman) died in 1904. The firm was disposed of to the Vickers (armaments) family, and a new company, Siebe Gorman & Co. Ltd. (1905-1998) was formed. Under the chairmanship of Albert Vickers, R.H. Davis was kept on as Managing Director, and the company forged ahead. However, after WW1, the Great Depression caused manufacturing output and share prices to slump. In 1924, Robert Davis made a deal with the Vickers Board and acquired control of the company through majority shares. Under his leadership, the Siebe Gorman Company flourished, and in time, four of his sons also joined the firm. The company gained a worldwide reputation for the manufacture of diving apparatus, decompression and observation chambers, and safety breathing apparatus of all types for use on the land, in the air and under the sea (including mine rescue, tunnelling, aircraft, diving, submarine escape and in other hazardous environments). Close research and development links with the MOD (especially the Admiralty), also provided a lucrative outlet for the company's products. In 1932, Robert Davis was knighted by King George V, principally for his invention of the ‘Davis Submerged Escape Apparatus’ (D.S.E.A.). Siebe Gorman essentially remained a family firm from the beginning (under A Siebe) until it became a public company for the first time in 1952. However, following WW2, British manufacturing stagnated through stifled investment and post-war austerity, and there was little innovation. Siebe Gorman's fortunes began to decline as an ageing Sir Robert Davis failed to invest or change the company's business and management practices. In 1959, Siebe Gorman was acquired by the “Fairy Group” and the ailing Sir Robert was made Life President. Consequently, nothing changed, and the slow decline continued until Sir Robert's death in March 1965. Around 1960, Siebe Gorman acquired the diving apparatus manufacturer C E Heinke, and for a brief period, it manufactured some diving equipment under the combined name of Siebe Heinke. Around 1964, Mr E. 'Barry' Stephens was appointed as the new Managing Director to modernise Siebe Gorman. Changes were made, including a move to a new factory in Wales in 1975. The new company concentrated on firefighting breathing apparatus and escape equipment, and the move coincided with the loss of many of the older, traditional craft skills. Between 1985 and 1998, Siebe expanded through acquisitions, and several other companies were acquired. The Siebe Gorman (diving apparatus) company has therefore traded as A. Siebe (1819-1870); Siebe & Gorman (1870-1879); Siebe Gorman & Co (1880-1904); Siebe Gorman & Co. Ltd (1905-1998).The diving compressor, along with associated equipment in the Flagstaff Hill collection, represents a highly significant snapshot of marine history. These items are particularly important in understanding the evolution of diving equipment, with a special focus on their use in salvage operations before and throughout the Second World War. Manufactured by a company renowned for its inventions, development, and innovation in marine engineering, the equipment demonstrates the progression of technology in deep-sea diving. Early helmets and related items produced by this company remain highly sought after by collectors worldwide, highlighting their historical and technological value. The presence of these items within the Flagstaff Hill Maritime Museum allows for a unique insight into the working conditions and methods employed by divers. It also illustrates the considerable dangers they faced while performing such essential and hazardous work, underscoring the critical role played by these professionals in maritime history.A single cylinder divers' pump by Siebe Gorman & Co Ltd, London, eccentric hand cranked in brass, brass-mounted mahogany case with instructions to the underside of the lid, brass-covered pressure gauge and air outlet, brass maker's plaque to the front, water inlet and outlet to the rear, green-painted lifting rings. Machinery has some blue-painted areas on the metal. This compressor is part of the E.G. Ward Collection.Plate on the back 'WATER SUPPLY" "WATER OVERFLOW" "WATER DRAIN-IN" Pressure gauge dial "BOURDON'S PRESSURE GAUGE" STEBE GORMAN & CO. LONDON", "LBS PRESSURE" "FEET OF SALT WATER" Plate on the front " PATENT, Siebe Gorman & Co Ltd Submarine Engineers" below emblem (Lion, Crown, Horse)flagstaff hill, warrnambool, flagstaff-hill, maritime-museum, diving compressor, london, siebe gorman & co ltd, marine technology, life saving, deep sea diving, maritime museum, maritime village, manine history, maritime history, marine engineers, marine diving, deep-sea diving, e g ward, vintage diving compressor, e. g. ward, e.g. ward, edward ward, ted ward

This Tangye B-size, single-cylinder, horizontal steam engine was likely manufactured in England around the mid-1880s. It was distributed by Melbourne machinery merchants Cameron & Sutherland, which also operated in Bendigo and Ballarat. A local cheese maker once used the engine to drive factory equipment. It was later donated to the Warrnambool Technical School, which then donated it to Flagstaff Hill to add to its historical steam engine collection. Between its manufacture and its donation to Flagstaff Hill, the governor had been replaced by the current Pickering governor. This engine design was very popular in the late 19th and early 20th centuries. When connected and powered up, the engine could drive an overhead line shaft via a flat belt off its flywheel. The line shaft would then drive the machinery via flat belts. It could drive virtually any type of machinery, such as water and sewerage pumps, mine elevators, winches, cranes, metal forges, air blowers, and marine machinery. This engine features a mechanical governor, which controls the speed of the engine regardless of whether it is under load. It also has a water pump built into the valve rod, which is used to supply the boiler with water. Steam enters the cylinder via a slide valve and applies pressure to the piston; it is like a modern internal combustion engine, but in the case of the steam engine, the pressure is exerted in turn on either side of the piston. In other words, the connecting rod is pushed by steam via the piston and piston rod and then pulled back again by steam pushing on the opposite side of the piston. Thus, power is exerted almost continuously, except at the end of each piston stroke, when it reverses direction. In the 1880s, many local butter and cheese manufacturers installed Tangye steam engines to power their machinery. A comprehensive article in the Gippsland Mercury in September 1889 extolled the magnificence of the Farnham Butter Factory in Dennington, Warrnambool, and described how one Tangye engine was used to drive several machines in the cheese- and butter-making processes. A report in the Warragul Guardian in December 1890 notes that the newly opened Warrnambool Butter Factory used a Tangye steam engine to pump water from a 60-foot well. Tangye: Richard Tangye (1833–1906) and four of his brothers—James, Joseph, Edward, and George—were the sons of Joseph Tangye, a Quaker Cornish miner. In 1857, they founded the engineering firm Richard Tangye & Brothers in Birmingham, UK. In 1860, the firm became Tangye Brothers and moved to Cornwall Works in Birmingham. The business encouraged inventors to join the company and develop their patents there, as happened with Weston’s differential pulley block, invented by the Englishman Thomas Aldridge Weston in 1854. Tangye bought the patent in 1858, giving the firm the sole right to manufacture it. The design received a medal for “original application, practical utility and success” at the 1862 International Exhibition in London. Also in 1858, the Tangye firm was commissioned by Brunel’s shipping company to manufacture hydraulic lifting jacks, or rams, to launch the steamship SS Great Eastern. The success of this project brought favourable attention to the firm, and it became involved in other notable projects, including the erection of Cleopatra’s Needle in London in 1878 and work on the Forth Road Bridge in Scotland. The firm underwent several name changes over the years, including James Tangye and Brothers (1857), Tangye Brothers and Price (1859), Tangye Brothers (1860), Tangye Brothers & Holman (1876), Tangye Brothers (by 1878), Tangye Ltd. (1881), and then simply Tangye. Its machinery and equipment were exported worldwide. In 1884, a branch with showrooms, offices, and a warehouse was opened in Melbourne at Cornwall House, Collins Street West. The firm was well known for producing high-quality machinery for agriculture and industry. Even today, new Tangye machinery is available for a subsidiary of Allspeeds. An extensive account of the firm’s history, names, inventions, and further references is available in Grace’s Guide, which also includes references to and diagrams of the Tangye horizontal steam engine. The horizontal steam engine was made by the well-known engineering firm Tangye, known for its high quality of manufacture. It was an important development in machinery because it helped improve productivity. Engines of this type are still used in some parts of the world today. This engine is a good example of a late 19th-century steam engine used in industry and agriculture and adapted for many different purposes. It is also important locally because it was connected to a local cheese making business and part of the thriving western district dairy industry. It may have been one of the Tangyes engines used at the Farnham butter factory or the Warrnambool Butter Factory, which was reported to be one of the most important in the Colony. It is also connected to the Warrnambool Technical School, established in 1968. Steam engine: stationary Tangye Size B, single-cylinder, horizontal Mill type steam engine. It has a 4-inch diameter cylinder with an 8-inch stroke. The body is painted green, and the Pickering governor is red. It was manufactured in Birmingham, England, in accordance with Tangye's Patent 238930, and distributed by Cameron and Sunderland, Melbourne, in the mid-1880s. TANGEYS PATENT BIRMINGHAM B SIZE 238930 CAMERON & SUTHERLAND MELBOURNE THE PICKERING PORTLAND . GOVERNOR . CONN. 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