Showing 36 items
matching compressed air
-
Geoffrey Kaye Museum of Anaesthetic History
Equipment - Cylinder, Medical Compressed Air
... Cylinder, Medical Compressed Air...Compressed air... for each gas, viz: compressed air, grey; carbon dioxide, brown... CYLINDER COOL / CIG [logo] / MADE IN AUSTRALIA / MEDICAL AIR... Compressed Air Equipment Empty small pale green painted cylinder ...Early cylinders were coloured as their maker saw fit, usually black, perhaps with a white top for oxygen. The Americans first achieved standardisation, but other countries do not follow American Standards. Australia follows the colour-scheme of the British Oxygen Corporation. The body is coloured individually for each gas, viz: compressed air, grey; carbon dioxide, brown; oxygen, black; nitrous oxygen, blue’ cyclopropane, primrose-yellow’ ethylene, mauve. Panels of other colours may appear on the body, but indicate technical points of cylinder-design and do not concern the anaesthetist. (Penn catalogue entry)Empty small pale green painted cylinder with rounded base and attached outflow valve with circular 'On-Off' knob.Handwritten in red paint across the main body of the cylinder: ST. VINCENTS 32510 Printed on manufacturer's label: 'KEEP CYLINDER COOL / CIG [logo] / MADE IN AUSTRALIA / MEDICAL AIR COMPRESSED / DO NOT ALLOW OIL OR GREASE ON VALVE / OPEN VALVE SLOWLY CLOSE AFTER USEcompressed air, cylinder, colour standardisation -
Federation University Historical Collection
Scientific Instrument, Acoustic Siren
... compressed air...Acoustic siren operated by compressed air. Incomplete....Brass siren operated by compressed air, without matching... by compressed air, without matching base connector. Numbers 8, 10, 12 ...Acoustic siren operated by compressed air. Incomplete.Brass siren operated by compressed air, without matching base connector. Numbers 8, 10, 12 are on the 'spring screws' below the perforated platescientific instrument, siren, physics, sound, compressed air -
Ballarat Tramway Museum
Book, Westinghouse Brake & Saxby Signal Co. Ltd, "Compressed Air Brakes for Tramways", May. 1929
... "Compressed Air Brakes for Tramways"... compressed air brake systems in general for tramways, including... Parade Ballarat Ballarat goldfields Book "Compressed Air Brakes ...Forty One page book with dark red cover titled "Compressed Air Brakes for Tramways", published by Westinghouse Brake and Saxby Signal Co. May 1929. Cover - cloth texture laminated paper cover, dark red on outside, with embossed title and publishing details and Westinghouse logo embossed on rear cover. Forty printed pages sewn at three points into cover with page 41, tipped onto right hand edge of page 40, with a blind perforated strip to enable the sheet to be used as an Enquiry form to obtain a price regarding tram brake equipment. Covers compressed air brake systems in general for tramways, including layout drawings, straight air brake, braking ratio, brake cylinder sizing, reservoirs, air compressor type E13, DH16, E13, Governors ES16, Brake Valve No. 13, 9, brake cylinder, sand ejectors, reservoirs drain cocks, with an appendix describing the automatic brake system for use with trailers. Manual No. DP12."Colin Rutledge" stamped on top of page 1.trams, tramways, westinghouse, tramcar brakes, compressors, governors, equipment -
Moorabbin Air Museum
Booklet - CAC Commonwealth Aircraft Corporation, Ministry of Supply Tests on a Tapered Wing (NACA 23012) with and without Sweepback in the Compressed Air Tunnel
... ) with and without Sweepback in the Compressed Air Tunnel ... 23012) with and without Sweepback in the Compressed Air Tunnel ... -
Kiewa Valley Historical Society
Drawings of Pikrose Engine
... compressed air engine... by compressed air and a winch used to operate a scraper. Used in tunnels.... The engine was used in the tunnel and powered by compressed air ...The Drawings were to be used for manufacture of all the components of the Pikrose engine.Some of the Pikrose Engine was manufactured by Austin Hopkinson and Co. Ltd. The drawings belonged to the SECV and were created in the 1950s. The engine was used in tunnel construction.These drawings were used in the workshop of the SECV during the construction of the Kiewa Hydro Electric Scheme. The engine was used in the tunnel and powered by compressed air.KVHS has the drawings only. Workshop drawings consisting of about 20 paper sheets. Size 2 Pikrose engines powered by compressed air and a winch used to operate a scraper. Used in tunnels of shaft.pikrose engine drawings, compressed air engine, austin hopkinson co. ltd., workshop drawings -
Federation University Historical Collection
Blueprint Technical Drawing, Blueprint, 1943
... Blueprint of drawing of compressed air hoist ... of compressed air hoist blueprint mechanical engineering technical ...Blueprint of drawing of compressed air hoist blueprint, mechanical engineering, technical drawing, m. lawrence -
Federation University Historical Collection
Student's Technical Drawings, Technical Drawing, 1942
... Ink on paper student's technical drawing: Compressed air... student's technical drawing: Compressed air hoist technical drawing ...Ink on paper student's technical drawing: Compressed air hoist technical drawing, mechanical engineering, d. eltringham -
Kiewa Valley Historical Society
Drill Bit, Circa 1950
... the bits need to be replaced regularly. Compressed air is blown... a central "blow" hole (compressed air outlet to remove the ground..." hole (compressed air outlet to remove the ground rock particles ...This is the cutting bit on the end of a drilling rod. It would have been used to drill holes into rock for placing explosives, for installing steel rock anchors, etc. In hard rock the bits need to be replaced regularly. Compressed air is blown through the holes near the tip of the bit to blow rock fragments out of the drill hole. The main drilling unit would have been powered by compressed air (Pneumatic). Rotary Air Blast Drilling. This drill bit was used by workers in the SEC Vic. Kiewa Hydro Electricity Scheme. This type of bit although strong needed replacing frequently when the rock composition (type of rock) was extremely compact. The configuration of the tip bit (four star like pattern) was to provide the "teeth" to tear into the rock. This bit was manufactured in 1949 however drilling for rock cores, in the Kiewa Valley and the Victorian Alps, was carried out from the late 1920's.This particular drill bit would have been used by construction workers to drill holes into rock for either explosives or for installing steel anchor points into the rock. The use of compressed air was not only for waste extraction but also for running the main drilling unit.This four star rotary air balst (RAB) drill bit has a central "blow" hole (compressed air outlet to remove the ground rock particles through four extraction holes). There are four raised cutting/grinding lugs which allows the air compression hole(incoming) to always have a clear unblock opening. Extracted ground material is "blown" out from the drill head via the larger hole created by the steel bit.Stamped on the bottom outside shank "FAGERSTA SECO SWEDEN" and below this "102 7041 01 05 049".sec vic kiewa hydro scheme, alternate energy supplies, drilling into rocks in alpine regions -
Federation University Historical Collection
Book, K.H. Fraenkel, Manual on Rock Blasting Vol 2, 1953
... compressed air supply... at the school. rock blasting mining compressed air supply compressor ...School of Mines and Industries is a predecessor of Federation UniversityThe School of Mines and Industry Ballarat was established as a school to teach about mining in 1870, this book would have been a good example of the information taught at the school.Manual in a hard covered ring binder. The manual is written in English and Swedish. Includes illustrations.rock blasting, mining, compressed air supply, compressor plants, rock drills, explosives, electrical firing, short delay blasting, ventilation -
Federation University Historical Collection
Book, Longmans, Green and Co, Introduction to Internal Combustion Engineering, 1946
... compressed air... compressed air Longmans, Green and Co J.B. O. Sneeden ...Red hard cover book of 268 pagesnon-fictionseller plate, ewin's ballarat, war economy standard, combustion, engineering, thermodynamics, internal combustin engines, compressed air -
Federation University Historical Collection
Book, Notes and formulae for mining students, 1897
... compressed air... act horses windmills horse power boilers explosions compressed ...J.H. Merivale was a prodfessor of mining in the Durham College of Science, Newcastle-Upon-Tyne. H.F. Bulman was an associate of the Institution of Civil Engineers and a member of the federated Institution of Mining Engineers. Green hard covered book of 188 pages. mining, brook, mining students, mathematics, newcastle coal field, ropes, chains, seams, dykes, dams, timber measure, timber costing, mines act, rules, explosives act, horses, windmills, horse power, boilers explosions, compressed air, wire ropes, steam, water power, electricity, sinking, winding, draining, hauling, chemistry, gases, ventilation, boring, formulae -
City of Moorabbin Historical Society (Operating the Box Cottage Museum)
Functional object - Laundry Equipment, washing machine, c1919
... THE / LEHMAN/ COMPRESSED AIR AND / VACUUM WASHING MACHINE.... THE / LEHMAN/ COMPRESSED AIR AND / VACUUM WASHING MACHINE / Pat ...Eduard Lehman, Zurich Switzerland patented a metal barrel shaped hand washing machine with a hand crank to operate a metal plunger in 1919. Such hand washing machines were used by settlers in Moorabbin Shire An 83 year old Visitor on site remembers using this type of washing machine. He had to push the agitator for 5 minutes. Prior to his mother buying the washer, all laundry was hand washed in troughs.Such hand washing machines greatly reduced the workload of the women of pioneer familes in Moorabbin ShireThis hand washing machine c1919 consists of a metal barrel, standing on 4 legs, and has a hand crank to operate a cone shaped metal agitator.THE / LEHMAN/ COMPRESSED AIR AND / VACUUM WASHING MACHINE / Pat. No. 50614/30lehman eduard, hand washing machines, laundry equipment, pioneers, early settlers, market gardeners, moorabbin, brighton, cheltenham -
National Wool Museum
Tool - Shearing Handpiece, c.1890
... from a drive mechanism of compressed air, this compressed air... threaded hose fitting. This is likely where compressed air... where compressed air was delivered into the handpiece ...Ford and McFarlane shearing handpiece c.1890. This shearing handpiece is from ‘Wellington Lodge” in Tailem Bend, South Australia. Wellington Lodge today is an Angus beef farm; however, the property has a long history which includes wool farming. Wellington Lodge has been in the McFarlane family since the 1840’s and was originally around 19000 acres. The donor, Brian Licence, assembled this handpiece out of spare parts he found while classing wool on the property in the 1960s. Brian showed the finished handpiece to the owners once his classing work was completed and was told he could keep the handpiece as a souvenir. Brian also classed wool at “Jockwar” and “Pleasant Park” in Penola for members of the McFarlane family during the 1960s. The handpiece is named after Ford, the name of the engineer who designed the handpiece and McFarlane, the owners of Wellington Lodge Station and employers of Ford. This handpiece was developed as a prototype for use on the property. The handpiece which is made of solid brass is in a “used condition” and has been patched with solder. The handpiece is stamped with the number 10. Internally, the handpiece is powered from a drive mechanism of compressed air, this compressed air was typically produced by burning mutton fat. The handpiece comes from the pre-electrical– steam engine era of shearing. Brass metal shearing handpiece. A three-pronged fitting to hold both the comb and the blade protrudes from one end. A cylindrical stem extends vertically from the other. This is likely where a connecting rod to the shearing plant would be found. Below this vertical stem, the handpiece has an additional threaded hose fitting. This is likely where compressed air was delivered into the handpiece. The inscriptions can be found on the rear, near the previously mentioned vertical stem. Around this stem is also where the repairs of solder can be found. These repairs are unique to this handpiece and are not common practise.Etched. Base of handle. “FORD & McFARLANE . SHEEP SHEARER . Etched. Base of handle. “10”sheep shearing, shearing equipment, ford & mcfarlane, wellington lodge, tailem bend, south australia, shearing handpiece, shearing -
Yarrawonga and Mulwala Pioneer Museum
Washing machine and wringer, 1920's
... Glasgow Washing Machine The Lehmann, compressed air and vacuum..., compressed air and vacuum washing machine no.30614/30 significant ...significant household item for a large familyWashing Machine [Metal with plunger on leve ron a three legged base with tap at base for emptying] Wringer attachedOn the wringer :Made in Great Britain Acme Wringers Ltd Glasgow Washing Machine The Lehmann, compressed air and vacuum washing machine no.30614/30 -
Bendigo Military Museum
Album - SCRAPBOOK, CMF COMMANDO"S, 1975 - 1990
... , Certificate, Compressed Air Diving, Association Newsletters... Harbour Bridge, Certificate, Compressed Air Diving, Association ...Refer to CMF Service of Barry John Maggs Cat 5697.This is a folder with numerous clear document pockets, a black cover and a black plastic spine. Inside are Army documents, newspaper cuttings, course reports, black and white soldier photos of training, abseling from Harbour Bridge, Certificate, Compressed Air Diving, Association Newsletters and Newspaper Adverts for Army Reserve.commando training, cmf -
Geoffrey Kaye Museum of Anaesthetic History
Equipment - Bird Respirator Mark 7A with C.I.G. 'Ventviva' ventilator
... The Bird ventilator Mark 7 is driven by medical compressed.... The Bird ventilator Mark 7 is driven by medical compressed air ...The Bird ventilator Mark 7 is driven by medical compressed air or oxygen. It is not suited for anaesthesia unless using a special anaesthesia assistor controller attachment, which is essentially a “bag in a bottle” device.Apparatus attached to four castor stand with attached white wall connecting tubing.anaesthesia attachment, bag in a bottle -
Bendigo Historical Society Inc.
Photograph - HARRY BIGGS COLLECTION: EAGLEHAWK POWER HOUSE, Date unknown
... is a compressed air tank, which was used for starting the engines..., in the right foreground is a compressed air tank, which was used ...Two photographs of the interior of the Eaglehawk Power House showing large diesel engines and associated Generators. One photo is a close up of a motor generator set. The other is a wider view of the area, in the background are gauges and switching gear mounted in racks, in the right foreground is a compressed air tank, which was used for starting the engines. On the back is written Eaglehawk power house, Negative at 254.buildings, commercial, power station, eaglehawk power house -
Ambulance Victoria Museum
Cardiac compressor, external, Corbin & Farnsworth inc, Cardio 2, Circa 1972
... Known as 'the thumper' this compressed air driven equipment...' this compressed air driven equipment entered service in the early 1970s ...Known as 'the thumper' this compressed air driven equipment entered service in the early 1970s. it did heart compressions automatically during CPR and allowed the ambulance officer to conduct other patient management activities. The thumper was known for breaking the patients sternum and was not especially successful. Source display label and Chas Martin curator AHVS 16 March 2016Cream, beige and gun metal compressorCorbin & Farnsworth inccardiac compressor, cardiac arrest -
Bendigo Historical Society Inc.
Photograph - COMPOUND AIR COMPRESSOR
... on wheel of control valve in the compressed air pipe outlet... valve in the compressed air pipe outlet of a two stage ...Black and white photograph. One male with right hand on wheel of control valve in the compressed air pipe outlet of a two stage or compound air compressor with con rod and crank shaft to a large flywheel. Two belts to a vertical governor. Outgoing air pipe vertical to ceiling of enclosing building. Inscriptions: Nameplate or bed plate 'A Roberts and sons, Engineers, Bendigo' Lower left corner handwritten 'with A Rob. Compliments' On back - 'Compound Air Compressor'.machinery, compressors, compound air compressor, worker, male -
Port Melbourne Historical & Preservation Society
Photograph - Under Port Melbourne Railway, Hobsons Bay Main Sewer, "Melbourne water supply", 1890s
... was taken in compressed air, and shows shield doors in background... in compressed air, and shows shield doors in background with men placing ...Three black and white images taken from: "Melbourne water supply - sewerage schemes" Special edition of the "Building, engineering and mining journal" The operations of the Melbourne and Metropolitan Board of Works. (.03) Plate XXXI. Under Port Melbourne Railway, Hobsons Bay Main Sewer, Section No 3. This view was taken in compressed air, and shows shield doors in background with men placing extra htdraulic power in position. This view also shows the method of constructing with concrete blocks and iron centreing on which to build the upper portion of the sewer.engineering - board of works, built environment - civic, mmbw, sewer, melbourne and metropolitan board of works -
Federation University Historical Collection
Book, Mining Engineers Handbook Volume 1 & 2, 1941
... Compressed Air Practice, Electric Power for mine Service, Surveying.... .2) Volume 2 - Chapers include Compressed Air Practice ...The book was used by Charles Bacon who studied at the University of Nevada in the late 1930s/early 1940s. Bacon worked at Bunker Hill Mines and Kellogg Idaho, before arriving in Australian in 1951. He worked for CN Myers, a company involved with paper converting. CN Myers was a family business (on Charles Bacon's maternal line). Robert Peele was Professor Emeritus of mining Engineering at the School of Mines, Columbia University.Maroon hardcovered books. .1) Volume 1 - Chapters include Mineralogy, Geology and Mineral Deposits, Earth Excavation, Explosives, Rock Excavation, Tunneling, Shaft Sinking in Rock, Shaft sinking in Unstable and Waterbearing Ground, Boring, Underground Transport, Mine Ventilation. .2) Volume 2 - Chapers include Compressed Air Practice, Electric Power for mine Service, Surveying,Underground Surveying, Mine Geologic Maps and models, Cost of mining, Mining Laws, Ore sampling, Assaying, Aerial Tramways and Cableways, Gold Amalgamation and Cyanidation, etc.Inside front cover "Charles Bacon"charles bacon, mining engineering, mining, engineering, university of nevada, mackay school of mines, explosives, timbering -
Geoffrey Kaye Museum of Anaesthetic History
Insufflation anaesthesia machine
... be packed into two small bags. The machine involved compressed air.... The machine involved compressed air being delivered to an ether ...In 1913, Mark Cowley Lidwill designed a machine for the purpose of mechanical or insufflation anaesthesia. The Lidwill machine was a portable machine weighing 7kg that could easily be packed into two small bags. The machine involved compressed air being delivered to an ether vaporiser. An ether/air control device allowed varying concentrations of ether to be delivered. The ether vaporiser could be immersed in hot water to prevent cooling and the ether temperature was measured. From the vaporiser, the ether/air mixture went through a trap bottle, then to a crude mercury blow-off valve and subsequently to the patient.Large leather suitcase style bag divided into two levels containing and insufflation anaesthesia machine.insufflation, mark cowley lidwill, thoracic surgery, positive pressure -
Ballarat Tramway Museum
Book, National Pneumatic Company, "Door and Step Control", c1920s
... for control of doors and steps using compressed air, manual methods... for control of doors and steps using compressed air, manual methods ...Book, titled "Door and Step Control", 192 pages printed on white art paper, with green inside covers and end covers, 12 sections, full bound, sewn into green Rexene outside covers with title and company logo in gold on front cover and publisher "National Pneumatic Company" on spine. Details equipment available for control of doors and steps using compressed air, manual methods, with photos of various types of railway and tramway vehicles, equipment and drawings. Has an index. Also details of sash (window) and garage door control systems. Has been stamped with the ESCo Company stamp in a number of places.trams, tramways, tramcar equipment, doors, safety -
Bendigo Historical Society Inc.
Photograph - MINE ENGINE ROOM
... Consolidated/ Coal Mine/ Outtrim/ Air Compressing plant.... Britiish Consolidated/ Coal Mine/ Outtrim/ Air Compressing plant ...black And white photograph : mine engine room showing machinery, brick and galvanised iron building. Cylinders and drive sheels. On back in pencil ' Outtrim Howitt Britiish Consolidated/ Coal Mine/ Outtrim/ Air Compressing plant.organization, business, mine machinery -
Ballarat Tramway Museum
Book, Westinghouse Brake & Saxby Signal Co. Ltd, "The Westinghouse Brake - Reference Book", 1904
... and the "Graduating Release Valve", dated August 1905. Covers compressed.... Covers compressed air brake systems on railway trains, showing ...One Hundred page book with nine fold out plates tipped in, green card titled "The Westinghouse Brake - Reference Book", published by Westinghouse Brake Co. in 1904. Text has been sewn into sections and then bound into the book. Plate inside front cover, has been printed in colour showing the extent of the use of the Westinghouse brake system that had been adopted on the various railways. Plat 110E (page 43) has an orange plastic component acting as a brake handle and showing how the various ports and parts interrelated in the valve. Inside the back cover are two loose folded sheets, plate 209 and 209A, Improved triple valve and the "Graduating Release Valve", dated August 1905. Covers compressed air brake systems on railway trains, showing how they are designed, operated, parts listing and has a number of pasted in erratum in the book. "Colin Rutledge" stamped on top of page 1 and inside front cover. On cover written in black ink "Melbourne Office, WB Co. of A, Jan '11"trams, tramways, westinghouse, railway brakes, equipment, compressors, carriages -
Federation University Historical Collection
Book, Australasian Institute of Mining Engineers, Transactions of the Australasian Institute of Mining Engineers, Volume X, 1905
... by David K. Blair * The Transmission of Power by COmpressed Air... * The Transmission of Power by COmpressed Air in Mines by R.W. Chapman ...Fabric covered hardcovered book of 367 pages. Includes a number of pullout plans. Contents * Mount Lyell Mining Field Tasmania by Professor J.W. Gregory * Concentration of solver-led ores (with 6 plates) by V.F. Stanley Low * Phosphate Deposites of Ocean and Pleasnt Islands (with 15 plates) by F. Danvers Power * Coal and Coal Mining in New SoPleassant Isuth Wales by Thomas Parton * Method of TImbering at the Mount Rex Tin Mne, Ben Lomand, Tasmania by Mark Ireland * Peck's Centrifugal Elevator by W. Peck * A Portable Assay Furnace by J.J. Gillio * NOtes on Sampling by A.C. Thomas * The Career of the Gold Dredge i n New South Wales by David K. Blair * The Transmission of Power by COmpressed Air in Mines by R.W. Chapman * The Misplacement of Mning Shafts and Adits in Victoria (with 7 figures) * The Indicators of the Daylesford Gold Mines, Victoria * Mining Accounts by R.N. Kirknon-fictionausimm, a.s. kenyon, frank a. moss, mount lyell, j.w. gregory, coal, gold dredge, transmission of power, mining shaft audits, daylesford gold mines, spitzkastens, ocean island banaba, pleasant island nauru, pinnacles on flat reef pleasant island, ocean island, blow hole howe bay, rock phosphate, thomas parton, mark ireland, mount rex tin mine, ngapara dredge, w. peck, w.h. vale, daylesford, jim crow diggings, glenmona gmc, f. danvers power, leigh g. hancock, workers' industrial union of australia (barrier district) -
Eltham District Historical Society Inc
Postcard - Photograph, Nucolorvue Productions Pty Ltd, greetings from Diamond Creek, n.d
... making a sandwich of cover, bladder and mesh. Compressed air... making a sandwich of cover, bladder and mesh. Compressed air ...Diamond Creek Bini Shell Community venue Built in 1979 in Diamond Creek opposite the hotel using a construction method invented by Dante Bini. A net of flexible steel rods were laid on the building’s circular base, on the top of a fabric bladder. Concrete was poured onto the mesh and a sealed cover laid over the concrete making a sandwich of cover, bladder and mesh. Compressed air was pumped into the bladder and the sandwich slowly began to rise and become a massive self-supporting dome. The inflation of the dome attracted crowds of onlookers many from various technical schools, VIPs and the famous football doctor, Donald Cordner. An opening night dinner was held to celebrate the construction and the Diamond Creek Bini Shell was used as a community venue for over ten years including for the Town Fair. The Shell was closed for safety reasons after a Bini Shell in another State had chunks of concrete fall off the dome due to a construction fault. At the Diamond Creek Town Fair in 1991 the demolition of the Bini Shell was an item on the Town Fair’s program. Information: Kevin Patterson, Nillumbik Historical Societybini shell, diamond creek community centre, nu-color-vue, postcard -
Bendigo Historical Society Inc.
Letter - MCCOLL, RANKIN AND STANISTREET COLLECTION: LETTER CAMERON SUTHERLAND SEWARD PTY LTD. TO J. J. STANISTREET
... Stanistreet Esq, 27 May, 1931, machinery 'likely to fill the Air... Stanistreet Esq, 27 May, 1931, machinery 'likely to fill the Air ...Letter Cameon, Sutherland Seward Pty Ltd., to J.J Stanistreet Esq, 27 May, 1931, machinery 'likely to fill the Air Compressing poortions of plant required for the Monument Hill and Central Nell Gwynne Mines' Items are: straight lined self contained steam driven air comprssor by Ingersoll-Rand company, straight lined self contained steam driven air compressor by Intersoll-Sargeant & Co.bendigo, gold mining, mccoll rankin and stanistreet, bendigo, gold mining, mccoll, rankin and stanistreet, g. seward, cameron, sutherland seward pty ltd. -
Flagstaff Hill Maritime Museum and Village
Instrument - Foghorn, Late 19th century
... by compressed air produced by an electric motor or other mechanical... by compressed air produced by an electric motor or other mechanical ...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 -
Eltham District Historical Society Inc
Photograph, Demolishing the Bini Shell at Diamond Creek, 1991
... . Compressed air was pumped into the bladder and the sandwich slowly.... Compressed air was pumped into the bladder and the sandwich slowly ...In 1978 Diamond Valley Shire recognised the need for a new public hall in Diamond Creek. Council considered the Bini shell form of construction which was in operation overseas and in use in New South Wales as libraries, gymnasiums, sports centres and multi-purpose centres. The Council gave the go-ahead. A site was chosen opposite the Hotel and close to the railway line. One day in - the following year, in 1979, activity stood still in Diamond Creek as school children and other excited spectators watched the one-hour inflation of the Bini Shell. This unusual method of construction was invented by Italian industrial designer and architect Dante Bini. The construction pneumatically raises a level of reinforced concrete from ground level which has not been set, using an internal balloon. The inner membrane inflates and compresses the mesh and concrete against the outer membrane. A net of flexible steel rods was laid on the building’s circular base, on the top of a fabric bladder. 300 tonnes of reinforced concrete were poured onto the mesh and a sealed cover laid over the concrete making a sandwich of cover, bladder and mesh. Compressed air was pumped into the bladder and the sandwich slowly began to rise and become a massive self-supporting dome. After inflation and removal of the outer membrane workmen filled in any holes. It was some days before pneumatic drills pecked out the first opening. The ceiling of the concrete dome was lined with fluffy insulating material. The dome was 36 metres in diameter at the base and 12 metres high in the centre with a usable floor space of 670 square metres. An opening night dinner was held to celebrate the new facility on March 12, 1980. Shire President Ron Pata made a speech and unveiled a plaque. It was the first public building in Victoria to be erected using the Bini Shell design method of construction The facility could cater for up to 400 people and in 1980 a fee for use was $100 for up to 200 people, $150 for up to 300 people and $200 for up to 400 people. For the next ten years or so, locals attended the hall for marital arts classes, basketball and netball games and school discoes and various other activities. After pieces of concrete fell off a Bini shell interstate due to a construction fault, the Council closed the centre. Demotion took place during the Diamond Creek Town Fair in 1991, as part of the annual Town Fair’s program. Research by L.P. Jan 2022This was the first public building in Victoria to be erected using the Bini Shell design method of construction.Colour photograph1991, diamond creek, bini shell, demolition, oval