Bushfire behaviour is influenced by many factors including temperature, relative humidity (RH), forest type, fuel quantity and fuel dryness, topography and even slope. Wind has a dominant effect on the Rate of Spread (ROS), as well as fire size, shape and direction. Temperature and relative humidity have major impacts on fuel dryness and therefore upon the availability of fuel for combustion. A thermo-hygrograph measures and records both temperature and humidity. It produces a continuous record by drawing ink traces on a paper chart held in revolving cylinder. Humidity is measured by shortening or lengthening of specially treated human hair. Temperature is measured by means of a bi-metallic strip. This particular instrument is a seven day recorder. The instrument is driven by clockwork. Serial number 10186 which probably dates from about 1960. The chart indicates it was last used in March 1979.Used for bushfire research.Clockwork Thermo Hygro GraphCasella London 10186 Made in England Research Branch. Forests Commission Orbostbushfire, forests commission victoria (fcv), forest measurement

Bushfire behaviour is influenced by many factors including temperature, relative humidity (RH), forest type, fuel quantity and fuel dryness, topography and even slope. Wind has a dominant effect on the Rate of Spread (ROS), as well as fire size, shape and direction. Temperature and relative humidity have major impacts on fuel dryness and therefore upon the availability of fuel for combustion. The amount of fine fuel available can increase rapidly from nearly zero when fuel moisture content is more than 16% after rain or a heavy morning dew, to many tonnes per hectare as fuel dries out later in the day and the moisture content drops below 9%. This explosive escalation in the amount of available fuel can happen over a few hours on hot and windy days. A sling psychrometer is a simple device for determining air temperature and relative humidity. It contains two thermometers, one of which is covered with a wick saturated with ambient temperature liquid water. These two thermometers are called dry bulb and wet bulb. When the sling psychrometer is spun rapidly in the air, the evaporation of the water from the wick causes the wet bulb thermometer to read lower than the dry bulb thermometer. After the psychrometer has been spun long enough for the thermometers to reach equilibrium temperatures, the unit is stopped, and the two thermometers are quickly read. A psychrometric scale on the side of the instrument is then used to convert the dry bulb temperature TDB and the wet bulb temperature TWB into humidity information. The wet bulb temperature is approximately equal to the adiabatic saturation temperature. The thermometers fold back into the plastic handle when not in use. Used to measure temperature and relative humiditySling PsychrometerBACHARACH INSTRUMENTS - Pittsburg PAbushfire, forests commission victoria (fcv)

Bushfire behaviour is influenced by many factors including temperature, relative humidity (RH), forest type, fuel quantity and fuel dryness, topography and even slope. Wind has a dominant effect on the Rate of Spread (ROS), as well as fire size, shape and direction. Temperature and relative humidity have major impacts on fuel dryness and therefore upon the availability of fuel for combustion. A thermo-hygrograph measures and records both temperature and humidity. It produces a continuous record by drawing ink traces on a paper chart held in revolving cylinder. Humidity is measured by shortening or lengthening of specially treated horse hair. Temperature is measured by means of a bi-metallic strip. This particular instrument is a seven day recorder. The instrument is driven by clockwork. Thermo Hygro GraphNegretti & Zambra

Used to measure the rate of rise of helium balloons The telescope is mounted on two movable axes. One axis (vertical) rotates to change elevation, the other (horizontal) azimuth. There are vernier scales and in some cases micrometres that give precise readouts of the relative position of the telescope to each axis. The instrument is set up so that it is level and it is pointed towards true north with both scales reading 0 degrees exactly. A balloon is released in front of the theodolite. It is sighted at timed intervals (usually one minute apart) and the position of the theodolite's telescope (azimuth and elevation) is recorded. It can chart the direction and velocity of winds at various altitudes The rate of ascent of a balloon is mostly dependant on the balloon's drag and its "free lift" (the vertical pull of the balloon). There is some degree of control over these these factors, and as a result, it possible to know approximately how high our balloon will be at any given time after its release. Given a known height and an angular direction (read off the theodolite) to the balloon, a fix is made of the horizontal movement component of the balloon's travel as it moves through different altitudes. The horizontal movement is due to the winds blowing the balloon around at the altitudes that the balloon is traveling throughTheodolite used to measure the rate of rising helium balloons The rate of rise is used in atmospheric calculations such as upper winds and determining inversion layersforests commission victoria (fcv), bushfire, weather

The phosphoroscope was invented by Alexander Edmund Becquerel and used to measure the amount of time that a phosphorescent substance will glow after being irradiated by a brilliant source of light.The phosphoroscope consists of a round metal chamber with a pair of rotating discs inside, arranged so that no light can pass directly through the chamber. The discs have cut-out windows spaced equally at regular angular distances and are turned by the hand crank linked to a gear mechanism. The sample is placed in a specially designed holder into the small opening near the gearing, and it is exposed to the light source through the large rear condensing lens.Engraved on chamber: 'Phosphoroscope de E. Becquerel / J. Duboscq a Parisbecquerel phosphoroscope, phosphoroscope, optical instruments, phosphorescent, alexander edmund becquerel, jules duboscq, france

This item was used to measure accurately the length of cloth on a bolt of material without unwinding it. It also measured lace, all types of textiles and spools of ribbon. It is surmised it would have been used in general stores or department stores in the late 19th and early 20th centuries. This item was discovered in the late 1980s behind an old safe at Swintons Stores in Timor Street in Warrnambool. The item appears to have been used extensively and would have been very useful during a stocktake. It may have been used in the Swinton Stores which were first established in Timor Street in 1865 with one section of the stores selling furnishings, furniture, clothing and clothing materials. The item was manufactured by A.E. Putnam of Iowa, U.S.A. There was a patent registered in 1896 and a later 'improved' model with a patent date of 1907. This item is of considerable interest because of its rarity and survival, its connection to Warrnambool General Stores in the past and its value as a research tool in local social and economic history. The possible connection to Swintons Stores is important as this business operated from 1865 to 2024 and was one of the longest-surviving family businesses in Australia. This is a rectangular-shaped wooden pole with one slightly flattened side and numbers marked on each side in patterns resembling brick walls. At the top of the pole are two wooden pieces attached to the pole by metal clips held by screws. The two wooden pieces are attached at a slight angle to the pole. The lower wooden piece is movable along the pole and has incised numbers. The wooden pieces are rectangular in shape with a large curved piece cut out to form the shape of a pennant. The maker's name is incised into the metal on the top attached wooden piece. Putnam's Cloth Chart Copyrighted 1896 Patent Pend'ggeneral stores in warrnambool, swintons stores in warrnambool, vintage measuring instrument for cloth

A blue coloured cardboard cover. the information is written in black ink. Top right hand corner is the number four which has been written in black texta. Une this is W.O. Code No. 9726. The top half of the cover is faded. There are three punch holes and two metal staples down the left hand side. Also contains Amendments No. 1 which is held together by a metal staple and is inside of the booklet. Top right hand corner reads 7610-66-013-9800/1. Under this reads W Code No 9726-2 (Aust) and this amendment is done by Army Headquaters, Canberra on the 1 Sep. 68. There are three punch holes down the left hand side of the amendment.australia - armed forces - service manuals, british army, artillery instruments, distance measuring equipment, tellurometer

A blue coloured cardboard cover. the information is written in black ink. Top right hand corner is the number five which has been written in black texta. Une this is W.O. Code No. 9726. Part of the top half of the cover is faded. There are three punch holes and two metal staples down the left hand side. Also contains Amendments No. 1 which is held together by a metal staple and is inside of the booklet. Top right hand corner reads 7610-66-013-9800/1. Under this reads W Code No 9726-2 (Aust) and this amendment is done by Army Headquaters, Canberra on the 1 Sep. 68. There are three punch holes down the left hand side of the amendment.australia - armed forces - service manuals, british army, artillery instruments, distance measuring equipment, tellurometer

Troy weight is a system of units of mass from an unknown origin. While the name Troi is believed to have come from Troyes in the north east of France the system used primarily in the precious metals industry and adopted in Australia originated in 15th century England. Troy weight units are the 'grain' and 'pennyweight' (24 grains), the troy ounce (20 pennyweights), and the troy pound (12 troy ounces). One troy ounce equals 31.1034768 grams. The troy ounce and grain were also part of the apothecaries' system and was long used in medicine, but has now been largely replaced by the metric system (milligrams). When the Weights and Measures Act was passed in Victoria in 1862 local inspectors were established throughout the colony to ensure accuracy particularly in the weighing of gold. By the 1870's each local council had a set of standards that were used to test the scales, weights and measures of local merchants and businesses. This set would have been de commissioned some time after 1947 and was offered back to the Borough of Eaglehawk in 1989. Hinged, lockable wooden box with brass handle, hinges, latches and lock. Remnant wax on front face of box above and below lock. Interior of box is lined with purple velvet which is worn in several places. Box houses nine troy weights ranging in size from 100oz Troy to 2oz Troy. 1oz Troy is missing. Accompanying set is a two page letter from Weights and Measures Branch of Consumer Affairs offering set back to the Borough of Eaglehawk in 1989. Troy Weights: Part a) 100oz Weight, 68 mm Diameter at base x 113 mm H b) 50 oz Weight, 53 mm D x 90 mm H c) 30 oz Weight, 45 mm D x 77 mm H d) 20 oz Weight, 39 mm D x 65 mm H e) 16 oz Weight, 37 mm D x 60 mm H f) 8 oz Weight, 30 mm D x 47 mm H g) 4 oz Weight, 24mm D x 36 mm H h) 2 oz Weight, 19mm D x 28 mm H i) 1oz missing Hinged Wooden Box: Part j)171 mm H x 300mm W x 196 mm D Typed two page letter: Part k) 295 mm H x 210 mm W x 1 mm Top Troy: Each Troy weight stamped with small symbol made up of the number 5, an image of a crown and the word STANDARD. Side Troy : Each Troy weight stamped with small symbol made up of the number 5, an image of a crown and the word STANDARD above a series of date stamps recording every time the weight was tested. Date stamps: 30.4.1866; 16.9.81, 30 12.86; 1.2.92; 10.5.97; 15.1.04; 10.2.09; 17.12.14; 20.4.20; 29.9.25; 23.1.31; 18.6.36; 14.7.41: 11.7.47 Exterior Top of Box: Remnant of paper pasted to wood. Faint printed text 'ON HIS MAJESTY'S SERVICE'.borough of eaglehawk, making a nation exhibition, city of greater bendigo commerce

Cream coloured manufacturers box labelled with a pale blue and cream label: "Diabetes Urinometer and Specimen Tube. Manufacturer Precision Glass Instrument Co, Melbourne". Blown glass urinometer used to measure the specific gravity of urine. It consists of 3 parts: I. The float: is the air containing part II. Weight: the lower end of urinometer (metal ball bearings) III. Stem- Has calibrations with numbers marked to measure the specific gravity Missing urine holding specimen tubeHospital type diabetes urinometer 60 degrees F Precision Glass Instrument Co. Melb. Measurements on stem from 000 to 030

There were at least three 1880s vessels named Lady Loch, all built in Victoria; a river launch (ca 1884 to ca 1916, originally named Lady of the Lake), a steamer ferry (1884 to 1920s), and a government lighthouse tender steamer HMV Lady Loch (1886 to 1962). The spring balance scale was part of the equipment on the HMV Lady Loch. The scale was made by the renowned company Salter Weighing Machines in the United Kingdom, to Silvester's patent design. Salter Weighing Machines, Britain, began making spring scales in the 1820s. In 1908 Salter opened up an Australian branch named Salter Scales Pty. Ltd. The scale is marked HMV SS Lady Loch. It would be suspended by its top ring, a basket or other container is hung from the hook, and the items inside the basket are then pulled downwards on the hook, which stretches the springs inside the works. The pulling action moves a rack and gears a calculated distance and the gears turn the pointer on the dial to indicate the weight of the goods. This scale measures up to 200 pounds capacity. The HMV SS Lady Loch was an iron steamship built in Footscray, Melbourne, by Campbell, Sloss and McCain in 1886 for the colonial Victorian government’s Department of Trade and Customs. It was armed with a 6-inch gun and two 1-inch Nordenfelt guns. The Sydney Morning Herald of 27th January 1888 describes the vessel in detail. It even comments on the interior of the Saloon “The wood work … is on a very elaborate scale and is exceedingly neat …”. The HMV Lady Loch performed Customs duties and serviced the lighthouses along the coast. The scale could have measured goods for the Customs Tax, or for measuring out supplies for the lighthouse keepers. The vessel was named after Lady Elizabeth Loch, wife of Sir Henry Loch, Governor of Victoria from 1884 to 1889. In 1932 Lady Loch was converted to a hulk and used in Brisbane, and finally scuttled in 1962 at Moreton Bay, Queensland.The scale has importance due to its connection to the 1886 HMV Lady Loch, a vessel of great significance to Melbourne’s shipbuilding industry. It was the largest auxiliary vessel in the Victorian Colonial Government’s fleet and the first prominent vessel launched by Melbourne’s shipbuilding industry. The scale is also important for its connection with the colonial navy's Custom's work, as the scale was available to weigh goods that could attract taxes and deal out goods for distribution to lighthouse keepers. The HMV Lady Loch was also important part of Victoria's maritime history for its communication and support of the lighthouse keeper's along the coast of Victoria.Scale; Salter's spring balance mechanical hanging scale, brass and iron. Equally spaced marks around the circular dial have values from 0 to 200 in increments of 10, each increment is also divided into 10. An iron ring is attached to a fitted loop on the top of the scale, and an iron hook is attached to the fitted loop onthe bottom of the scale. A moving pointer attached to the centre of the dial has a calibration screw joined to its base. Four screws fix the brass face to the works at the back. There are stamped and embossed inscriptions. Made by Salter in Britain, to Silvester's Patent design. The scale was once equipment carried abourd the steamship HMV SS Lady Loch. Stamped: "SALTER'S / SPRING BALANCE" "SILVESTOR'S / PATENT" Embossed in script: "HMV SS / Lady Loch"warrnambool, shipwreck coast, flagstaff hill, flagstaff hill maritime museum, flagstaff hill maritime village, scale, salter, spring balance, silvester's patent, lady loch, steamship, hmv, colonial navy, victoria, lady elizabeth loch, custom's vessel, lighthouse tender, 1886, government vessel, victorian government, measuring instrument, weight, weighing instrument, mechanical scale, hanging scale, hmv lady loch, weights and measures, silvestor's patent, george salter & co.

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

The sphygmomanometer is an early diagnostic instrument used to measure blood pressure. Since the discovery of blood circulation in 1628, the search for accurate, convenient, simple, and non-invasive tools has led to evolving measuring devices and cuffs. Until the twentieth century, few doctors tolerated the inconvenience of blood pressure measurers and relegated the exiting tools to laboratory research. The mercury and later aneroid sphygmomanometers provided the accuracy and portability required for clinical use.The sphygmomanometer is an early diagnostic instrument used to measure blood pressure. Since the discovery of blood circulation in 1628, the search for accurate, convenient, simple, and non-invasive tools has led to evolving measuring devices and cuffs. Until the twentieth century, few doctors tolerated the inconvenience of blood pressure measurers and relegated the exiting tools to laboratory research. The mercury and later aneroid sphygmomanometers provided the accuracy and portability required for clinical use. In common daily use by nurses for clinical assessment of patients' blood pressure.metallic box and contents -The sphygmomanometer is enclosed in the beige metal container. There is a click opening button on the exterior inferior end. The lid lifts via an internal hinge on the superior end to reveal a glass cartridge tube calibrated to 300 millimetres of mercury. The case and meter were manufactured in Germany (according to original museum catalogue worksheet) and identified as the “Mercurius Miniatur Modell.” The dark green rubber bulb and of tubing are in good condition. The black cotton fabric cuff shows signs of wear and is frayed at the bladder insertion opening. According to the company insignia on the bladder, it was manufactured by ACCOSON in England. superior lid - silver metal plaque in centre, engraved P.T.S., right corner of lid - white sticky label - black ink 176-01, manufacturers stamp inside lid - SPHYGMOMANOMETER/Mercurius/MINIATUR MODELL/Made in Germany, serial number 342308, on base of box, white paint - 176-01sphygmomanometer, medical instrument, blood pressure, alfred hospital nurses league, student nurse training alfred hospital

The lead line or hand lead is a simple navigational instrument used as a depth finder to measure the depth of water under the ship’s keel and to take samples of the sea bed. The long line may be marked at regular intervals with tags of different coloured and textured fabric, such as rope, leather and cloth. Each tag was a code to represent a certain depth. The leadsman’s eyes and hands could distinguish the depth easily as he drew in the lead line, day or night and in poor weather conditions. A standard set of codes for the tags was used so that the depth of the sea could be easily and quickly read. The measurement used was a Fathom, which equals 1.83 metres. The codes were: - 2 fathoms = 2 strips of leather 3 fathoms = 3 strips of leather 5 fathoms = white duck fabric 7 fathoms = red bunting fabric 10 fathoms = leather with a hole 13 fathoms = blue serge fabric 15 fathoms = white duck fabric 17 fathoms = red bunting 20 fathoms = 2 knots The lead weight could be between 7 -14 pounds (3.5 – 6.5kg) and the rope would be approximately 25 fathoms (45m). The hollowed-out end of the weight would hold a stick substance such as tallow or wax, which would pick up samples from the sea bed which would show whether the vessel was close to, or far away from, the shore. The leadsman would stand at the front of the vessel and cast the lead line into the sea. When it hit bottom he would note the tag marker nearest the surface of the water and call out his finding. Then he would haul it up again and examine the kind of matter that adhered to the end of the weight, whether it be sand, mud, gravel, or the colour of it. This information would be given to the ship’s helmsman or navigator and would help indicate the proximity to the land.This handheld lead is an example of early marine navigational equipment used by sailors to travel the seas to measure the depth of the water and sample the nature of the seabed. It helps to understand the history and progress made from the very basic to the sophisticated technology of today.Lead line, sounding line or depth finder. The long length of rope has a heavy lead weight attached to the end. Coloured fabric tags are tied onto the rope at regular intervals, representing different depths. The concave base of weight holds sticky substances such as tallow or beeswax, providing an adhesive surface to collect samples of sea bed like sand, shells or pebbles. flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, lead line, depth finder, hand lead, sounding lin, leadsmane, navigation instrument, leadline, hand lead line