Report - carbon typed copy - 43 foolscap sheets bound within a brown card folder, stapled, with signs of an adhesive tape binding on the outside. Titled "Information - Tram 980 (PCC Equipment)", dated February 1964, prepared by the MMTB Engineering Department Testing Department Report No. I 5/1/144. Signed by W. Hines 6/2/64, report prepared by CLF. Provides a synopsis of the report, purpose of investigation, design, operational history, time in workshops, maintenance program, schedule speeds, riding qualities, has appendices with design modification, list of time in workshops, PCC tramcars maintenance program, workshops maintenance of ten typical trams, MMTB Tramcar Schedule speeds. Includes photographs of the failure of the main body transom and the replacement one, and two graphs. Second copy added 31-5-2016 from donation of Geoff Warburton. This copy - has red binding tape.trams, tramways, testing, pcc, preston workshops, reports, specification, tramcar manufacture, tramcar design, maintenance, tram 980

Yields information about the type and presentation of books or information folders that were sent to the Electric Supply Company of Victoria about tramway products available on the market and the company the produced them.Folder with 24 pages of advertising pamphlets bound into it with two metal clip binders advertising products available from the Railway Track-Work Company and titled ""Railway Track Equipment - Track Grinding Machines, Welding and Bonding Machines - Bonds, Welding Steel, Grinding Wheels and Blocks". Has brochures or pamphlets for: . The Universal Rotary Track Grinder . Reciprocating Track Grinder . The Atlas Rail Grinder . The Ajax Electric Arc welders .Vertical Rail Lifter . The Jackson Electric Tie Tamper. Generally the lead page of each pamphlet has been imaged. Provides a description of each item, along with method of operation and parts listing generally. The folder has on a number of pages and the back cover, a sticker from Frank R. Perrot (Now Perrot and Adams Ltd), Machinery Merchant of 394 Kent St Sydney. Railway Track-work Company , Clementine, Thompson and Mercer Sts, Philadelphia, Pennsylvania USA. For a full scan of the document see the hi res file.Numerous: Front cover sticky label "1620" in top left hand corner, "Mr Pringle" on front cover and stamp with words "Ballarat Tramway Preservation Society Catalogue No. 10" in ink on front cover. Inside front cover has a pencil note, behind the crease in the bottom right hand corner. On the first pamphlet "Ballarat Tramway Preservation Society Catalogue No. 10" in ink on top right hand corner. On parts page for the Reciprocating Track Grinder has the "Perrot and Adam Ltd" company stamp.trams, tramways, trackwork, equipment, rails

Victorian Institute of Occupational Safety and Health (VIOSH) Australia is the Asia-Pacific centre for teaching and research in occupational health and safety (OHS) and is known as one of Australia's leaders in the field. VIOSH has a global reputation for its innovative approach within the field of OHS management. VIOSH had its first intake of students in 1979. At that time the Institution was known as the Ballarat College of Advanced Education. In 1990 it became known as Ballarat University College, then in 1994 as University of Ballarat. It was 2014 that it became Federation University. VIOSH Australia students are safety managers, senior advisors and experienced OHS professionals. They come from all over Australia and industry.. Students are taught active research and enquiry; rather than textbook learning and a one-size fits all approach. VIOSH accepts people into the Graduate Diploma of Occupational Hazard Management who have no undergraduate degree - on the basis of extensive work experience and knowledge. Photographs show the BP Depot. The equipment, facilities and signs - labels and warnings - are clearly displayed. During 1996 a course titled "SHARE In-House Noise" was held 14-15 February 1996, 28 February and 27 March 1996 at Wollongong. Twenty people attended - Engineers, Supervisors and MIners. Twenty-three colour photographsSigns and labelsviosh, victorian institute of occupational safety and health, bp depot wollongong, in-house noise, engineers, supervisors, miners, signs, facilities, equipment

Photograph of a Hutchinson, Hollingworth and Co. Limited Loom gears and mechanisms. Hutchinson, Hollingworth and Co. was an Oldham-based loom manufacturer estalished in 1860 by Messrs. John Hutchinson (c.1816-1888) of Cawthorne and James Hollingworth(c.1834-1895) of Holmfirth.Three black and white photographs in portrait format of a looms gear mechanisms.8052.1 - front on machine mid left quadrant - Hutchinson, Hollingworth and Co 8052.2 - front on machine mid left quadrant - Hutchinson, Hollingworth and Cotextile machinery, wool manufacture, wool, loom

Photos .1P, .2P, and.4P were most likely taken in the 1980s and photos .3P, .5P to .7P in the c1990s at the Army Survey Regiment, Fortuna, Bendigo. Despite lacking annotation on exact dates, locations and personnel, they are positively identified. CPL Ian Nelson in photo .1P is operating a Wild Pug 4 point transfer device in Air Survey Squadron c1980s. Control points were transferred onto the mapping diapositives of aerial photography by drilling their locations into the photographic emulsion. SPR Viv (Hawkins) Doherty in photo .2P, SPR Jeanette Drury-Lane in photo .5P and SGT Sandy Craig are operating a Wild B8 Stereoplotter coupled to a digital workstation in Air Survey Squadron c1994. Topographic features were extracted with the B8 in 3D and feature coded with attributes, using keyboard, menu, keypad and voice inputs to the computer. The features were stored in the AUTOMAP 2 digital database for subsequent cartographic production and printing. CPL Mick Ellis in photo .3P is operating the Optronix 4040 Scanner/Film Writer in Lithographic Squadron c1990s. In scanning mode, compilation sheets were mounted on the drum and scanned. The resultant raster file was vectorized, feature coded with attributes and stored by cartographic technicians in the AUTOMAP 2 database. In film writing mode, digital cartographic files were output at very high resolution for each print colour on photosensitive film, for subsequent finalisation, platemaking and printing.This is a set of seven photographs of technicians operating map production equipment at the Army Survey Regiment, Bendigo. The photographs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographs were scanned at 300 dpi. .1) - Photo, colour, c1980s. CPL Ian Nelson operating a Wild Pug 4 point transfer device in Air Survey Squadron. .2) - Photo, colour, c1980s. Wild B8 Aviograph stereoplotter feature extraction, SPR Viv (Hawkins) Doherty in Air Survey Squadron. .3) - Photo, colour, c1990s. CPL Mick Ellis operating the Optronics 4040 Scanner in Lithographic Squadron. .4) - Photo, colour, c1984. AUTOMAP 2 Graphic Edit Workstation, SPR Craig Kellet in Cartographic Squadron. .5) - Photo, colour, c1994. Wild B8 Aviograph stereoplotter feature extraction, SPR Jeanette Drury-Lane in Air Survey Squadron. .6) - Photo, colour, c1994. AUTOMAP 2 Graphic Edit Workstation, L to R: unidentified, SPR Rachel (Stanford) Scott, CPL Chris Wynn in Cartographic Squadron. .7) - Photo, colour, c1994. Wild B8 Aviograph stereoplotter AUTOMAP 2 Graphic Edit Workstation, L to R: unidentified (x2), SGT Sandy Craig in Air Survey Squadron..1P – no annotations .2P – annotated “Stereoplotter Workstation. The operator has the use of keyboard, menu, keypad and voice for input to the computer. Feedback is given through voice and screen messages.” .3 to .7P – no annotationsroyal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, air survey, litho, aerotrig, automap 2

In 1980 the President was M.B. John. In 1980 the administration staff moved out of the lower level of the library and the space was converted for teaching use. Extensive alterations were made to the lower level of the mechanical/Civil Engineering wing for the housing of Applied Geology and Environmental Science. Car parking facilities were extended at Mt Helen.Orange soft covered book of 35 pages. Contents include: Courses, student numbers, Victorian School of Forestry, financial statement, Education Building (T Building) completed, Gillies Street Campus, Art building under construction, Great Hall (1870s Founders Hall) completion date expected to be mid 1980, Centenary Appeal, E.J. Barker Library, Computer Centre, bookshop . ballarat college of advanced education, bcae, mt helen, mount helen, library computer

The Council President in 1984 was Ian Gordon.Yellow soft covered book. Contents include: Review of College objectives and organizational structure, Nursing, Mining Engineering Education, Physical Education, Ultra Violet Visible Spectrophotometer, Microbee computers, Scanning Electron Microscope, Peter Colville, Thelma Rungkat, Ray Cotsell, Samantha Taylor, Don Fairhall, George Wasyluk, staff resignation of Alan Roberts, Lynette Snibson, Margaret Bowman, John Burrell, Malcolm Mackinlay,Fazal Rizvi, Irene Wasyluk, Wendy Batchelor, Peter Coman, Micro-teaching area, Staff retirement of Geoff Biddington and Mr Rofe, Staff appointment of Richard Dutton, Peter McCarthy, Richard Croggon and Jim Nugent, building of external kiln, Studio Production Ceramics, Nellie Skolnikova, John Hopkins, Sonny Dalimore, Judi Hill, Academic Registry, Staff resignation of Josephine Ryan, Staff appointment of Diane Costello, building of Metallurgy workshop/shed, Beaufort House, new road entrance to campus, ballarat college of advanced education, bcae, mt helen, mount helen, gordon, tippett, dobell, parkin, tippett, crouch, kiln, ceramics, skolnikova, hopkins

Early photograph 1970 showing first buildings of Mount Helen Campus of Ballarat University built on early estate near Green Hill. The Tasmanian Blue Gum featured dates from 1896Significant tertiary institution established in the historical pastoral area of Green HillBlack and white photo of early buildings of Mount Helen Campus of University of Ballarat featuring significant Tasmanian Blue GumTasmanian Blue Gum with Civil Engineering building and Green Hill in the background 1970education, green hill, mount helen, university, trees

Early photograph taken in 1969 showing first buildings of Mount Helen Campus of Ballarat University built on early estate near Green Hill. Significant tertiary institution established in the historical pastoral area of Green HillBlack and white photo of early buildings of Mount Helen Campus of University of Ballarat South West Corner of North Wingeducation, green hill, mount helen, university, trees

Tour de France winner Cadel Evens, in the BMC red outfit, rides a bicycle in a race at Buninyong. cadel evans, bicycle, buninyong, mount helen

This is a set of 1photographs of surveyors in the field measuring distances using chains, taking observations using theodolites and operating electric distance measurement equipment. They were probably employed in establishing mapping and geodetic control operations or the surveyors may have been in training. The photos were most likely taken in the 1950s and 1960s. Photos .1P to .6P feature personnel setting up geodetic survey chaining equipment to measure distances. The surveyor in Photo .5P is LTCOL Howard Angus Johnson MBE who served from 1936 to 1954. The RA Svy surveyor in photos .7P to .12P were using a theodolite to take angular measurements. They were usually supported by an observer who recording their readings on a booking form. The surveyor in Photo .10P and .11P is LTCOL Jorge Gruszka, who served from 1955 to 1985. He was CO of the Army Survey Regiment from 1982 to 1985. The surveyor in photo .13P is cutting an identification blaze on a tree using a hammer and chisel. The tellurometer in Photos .14P to .16P was a MRA1 microwave Electronic Distance Measuring instrument (EDM) introduced in 1958. It and later models were man-portable systems that improved geodetic survey efficiencies for rapid network extension and densification replacing triangulation with EDM and theodolite traverse sometimes using Bilby Towers to extend line lengths. The surveyor with the slouch hat is Colonel James ‘Jim’ Leslie Stedman, who served from 1941 to 1978. He was Director of Military Survey from 1975 to 1978 and was appointed as Colonel Commandant (honorary appointment, Retd) of the Royal Australian Survey Corps from 1978 to 1983. Jim Stedman is demonstrating EDM equipment.This is a set of 17 photographs of surveyors in the field measuring distances using chains, taking observations using theodolites and operating electric distance measurement (EDM) equipment. c1950s – 1960s. The photographs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographs were scanned at 300 dpi. .1) - Photo, black & white, c1950s, unidentified personnel using geodetic survey chaining equipment. .2) to .4) - Photo, black & white, c1950s, geodetic survey chaining equipment. .5) – Photo, black & white, c1950s, Jim Stedman using geodetic survey chaining equipment to measure distances. .6) - Photo, black & white, c1950s, Unidentified personnel geodetic survey chaining equipment. .7) – Photo, black & white, mounted on card, c1950s. Unidentified surveyor undertaking observations on a coral reef using a theodolite. .8) – Photo, black & white, c1950, unidentified surveyor undertaking observations with a Tavistock theodolite. .9) – Photo, black & white, mounted on green card, c1950s. Unidentified surveyor undertaking observations using a plane table. .10) – Photo, black & white, c1955, Jorge Gruszka undertaking observations with a theodolite. 7/55 Basic Survey Course Balcombe. .11) – Photo, black & white, c1950s, Jorge Gruszka undertaking observations with a theodolite. .12) – Photo, black & white, c1946-1948, unidentified surveyor undertaking observations with a theodolite to gain control for the mapping of the Snowy Mountain Diversion Scheme. .13) – Photo, black & white, c1950s, unidentified surveyor cutting a blaze in a tree. .14) and .15) – Photo, black & white, c1960s, Jim Stedman demonstrating EDM equipment. .16) – Photo, black & white, c1960s, L to R: Jim Stedman (probably) and unidentified surveyor demonstrating EDM equipment. .17) – Photo, black & white, 1956, Operation Cutlass - Surveyors SPR W. Crane and J.A. Campbell undertaking observations with a theodolite in extreme conditions..1P on back - First Order Chaining Equipment .2P on back - First Order Chaining Equipment .3P on back - Full catenary 1800 – 1960 replaced by EDM .4P on back - First Order Chaining Equipment .5P on back - H.A. Johnson, Benambra baseline? 1st Order Chaining .6P on back - Chaining .7P on front - Difficult observing conditions especially when the tide is in. The station is sighted (sic) on a coral reef. .8P on back - Tavistock. .10P on back of duplicate in Photo Folder 14 – George (sic) Gruszka 7/55 Basic Survey Course Balcomme (sic) 1955/56 .14P and .15P on back - Jim Stedman demonstrating early EDM equipment.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, surveying

Green material suspenders issued as individual equipment.Suspenders, individual, equipment belt LC-1. DSA 100-74-C-0325, 8465-00-001-6471. Rebmar Incvietnam war, army equipment, suspenders, uniform, belt, webbing

Set of six destination indicator equipment that was fitted to Z, Z3 and B class trams. .1 - dot matrix type destination sign fitted to the side of a B class tram - set at Preston Depot - serial number 232636 - Luminator type, back cover loose, 180H x 1300W x 100D. See images 3704i1a to e. .2 - dot matrix type route number fitted to the front of a tram, type fitted to B2 class tram, set at 86D, serial number 273644 - Luminator type, marked "163 No", 240H x 350W x 135D. See images 3704i2a to d. .3 - flipper type, side destination type, marked "ex 53" (Z class tram), made in Italy by Boselli has yellow label 37/702S, serial number 40A1603, set to St Kilda Beach and stamped 136 on one flange. 120H x 330W x 165D. See images 3704i3a to c .4 - flipper type, destination box, with markings "B'Wick Flaps", with labels "New" "Universal A flaps" made in Italy by Boselli, serial number 40A6623, set to St Kilda Junc". 210H x 1000W x 1900. See images 3704i4a to d. .5 - flap from an above type box, half of "Richmond" and "South Melb Depot", 970W x 80H. See images 3704i5a to b .6 - controller box, marked "No. 105" on rear, serial number 202311 Luminator, numeric pad, illuminated display and five control buttons made by gulton Luminator division fitted to a B2 tram. See images 3704i6a to b .7 - dot matrix destination sign fitted to the front of a B2 class tram, set to "Not in Service", Serial number 502626 Luminator, 220H x 1300W x 165D, See images 3704i7a to e. Source of items 3 and 4 name based on drawings held by the Museum for the destination signs fitted to Z class trams. Refer to drawing R11-982 as an example. Luminator made by Luminator Technology Group Texas - see https://www.ltgglobal.com/ access 12/7/2019. Imagetrams, tramways, destination indicators, z3 class, transport equipment, z class, b class

.1 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Contactor Starters for Electric Motors" C49-1927, December 1927. .2 - Book - 56 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Dimensions of insulated annealed copper conductors for electric power and light including voltage tests" C50-1928, June 1928. .3 - Book - 36 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Vulcanised Fibre for Electrical Purposes" C51-1928, May 1928. .4 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Bus-bars and connections constructed of bare copper or aluminium" C52-1928, May 1928. .5 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Fixed Condensers for Radio Reception Purposes" - C53-1928, February 1928. .6 - Book - 32 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Graphic (Recording or chart recording) ammeters, voltmeters and wattmeters." C54-1928 March 1928. .7 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "5-Amp two pin wall plugs and sockets for domestic purposes (without earthing connection)" C55-1928, August 1928, .8 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Electric Cable Soldering Sockets" C56-1929, March 1929. .9 - Book - 8 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Graphical Symbols and Schedule of Outlets for the Electrical Equipment of Buildings" C64 and 65-1935, October 1935. .10 - Book - 24 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Porcelain Insulators for overhead powerlines and outdoor switching Structures" C67-1939, August 1939. On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" for items .1 to .8, SEC stamp on .10. trams, tramways, power station, standards, materials, electrical systems

Many butter churns were brought to Australia when people immigrated. German butter churns usually have the hand hold and the large gear in the same place, and are usually embossed on the base with the litre size. They usually came with a paper label and did not have embossing on the sides of the jar.large glass jar with lid-mounted geared churning mechanism with rotating paddle and wooden handle.Germany' pressed into lid, 'W 3' cast into inside of turning handle, '2 L.' embossed into bottom of glass containerfood technology, food processing, butter, milk, churn, kitchen, processing, germany, glass

Steering Gear Operation: All steering was done from the stern of the ship and a steering mechanism was used to connect the rudder to the ship's wheel, often housed in a box-like construction behind the helm. The rudder was, in turn, mounted on a pintle or stern-post held in place by gudgeon's (sockets). The steering was activated with lines attached to the blocks on the two threads (half left hand, half right hand) of the steering gear. As the helmsman turned the helm in the direction in which he wished the ship to travel, the central screw of the steering gear, which was attached to the back of the helm, turned horizontally. This caused the rods on either side of the gear to move backwards or forwards at the same time, which then turned the pintle and rudder to port or starboard. A brief history of the Newfield (1889-1892): - The Newfield was an iron and steel sailing barque of 1306 tons, built in 1889 by Alexander Stephen & Sons Dundee (Yard No 89) for Brownelles & Co., Liverpool. The Newfield was on a voyage from Sharpness to Brisbane on 29 August 1892, with a cargo of 1850 tons of fine rock salt. The Cape Otway light had been sighted in squally, bumpy weather, but the captain was under the impression it was the King Island light. The ship’s chronometers were wrong, and orders were given to tack the ship away from the light, which headed it straight for the cliffs of the Victorian coast. The vessel struck rocks about 100 yards from shore, and five feet of water immediately filled the holds. The captain gave orders to lower the boats which caused a disorganised scramble for safety among the crew. The panic resulted in the deaths of nine men, including the captain when they drowned after the boats capsized in heavy seas. The seventeen men who regained the ship decided to wait until daylight and rowed to Peterborough in the ship’s jolly boat and gig after locals had failed to secure a rocket apparatus line to the ship. The Marine Board inquiry found the wreck was caused by a "one-man style of navigation" and that the captain had not heeded the advice of his crew.The Newfield wreck and its collection of recovered items are heritage listed and are regarded as historically significant. They represent aspects of Victoria’s shipping history and their potential for us today to interpret the maritime history and social themes of the time. The assemblage of various Newfield artefacts held in the Flagstaff Hill Museum is not only significant for its association with the shipwreck but helps archaeologists when examining the relationship between the objects to better understand our colonial marine past.Ship’s steering gear, cast iron, consists of a long round metal rod into which gears have been machined. The thread of the gear from one end to almost the centre winds in a left hand direction while the thread of the gear from the other end to almost the centre winds in the right hand direction. Each end of the rod has a metal coupler attached and two narrower round rods are also attached to the coupling, one each side of the gear rod, the same length as it and parallel to it. Two more ‘S’ shaped couplers are joined to the gear rod. Each of these have an opening through which the gear rod is threaded and can move along. There is another opening in these couplers through which one of the narrower rods is threaded. The other end of this coupler has half length metal rod attached to it by a bolt through the ring at the end of the rod. One end of the steering gear still has the brass hub of the ship’s wheel solidly attached. The hub no longer has its wooden spokes but the ten holes for the spokes can be easily recognised.Noneflagstaff hill, maritime museum, shipwreck coast, warrnambool, peter carmody, carmody, newfield, shipwreck, peterborough, south west victoria, rocket, rocket crew, shipwreck artefact, flagstaff hil maritime museum, steering, steering gear, screw steering gear, sailing ship

B & W photos - Mt Beauty township; Earthmoving Equipment opposite workshops; Kiewa River; Mt Bogong view all with the titles written on the bottom left hand cornerKiewa River; Mt Bogong; Earth Moving Equipment; Mt Beauty

Example of school equipment, c 1950'sExample of equipment used in the teaching of geometry.Example of school geometry equipment.C E H engraved on reverse of set square. Mathematic scales on face of set square.school equipment, geometry

Photographic record by Russ Haines, RDHS, in October 2008.

Peter Ball collection, refer Cat No 4704.Soft cover book. Cover - cardboard, black print on front and spine, beige background, small illustration. British Coat of Arms. 192 pages, cut, plain, white paper. Illustrated black and white illustration, diagrams and photographs. Handwritten - signature of author and owner's name.Handwritten signatures - front end paper - owner "Peter C Ball". Title page - author - "Rick Landers".books, reference guide, history, military accoutrements, british

This is an instruction manual describing in detail the construction of the templates used for producing map compilation sheets from aerial photographs, and how the system works.Foolscap size, soft carboard covers, 9 x numbered pages, 3 x fold out pages containing two photos on each. Australian Survey Corps Badge on cover. Stapled and re-stapled on Left hand edge.Front Cover, "15" Top Left and Bottom Left corner, "COOPER" and stamped "58" in Top Right, "AHQ/Misc/0015" Bottom Left Corner, Stamped "Eastern Command Survey Service copy 5"royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr

Victorian Institute of Occupational Safety and Health (VIOSH) Australia is the Asia-Pacific centre for teaching and research in occupational health and safety (OHS) and is known as one of Australia's leaders on the field. VIOSH has a global reputation for its innovative approach within the field of OHS management. VIOSH had its first intake of students in 1979. At that time the Institution was known as the Ballarat College of Advanced Education. In 1990 it became known as Ballarat University College, then in 1994 as University of Ballarat. It was 2014 that it became Federation University. VIOSH Australia students are safety managers, senior advisors and experienced OHS professionals. They come from all over Australia and industry. Students are taught active research and enquiry; rather than textbook learning and a one-size fits all approach. VIOSH accepts people into the Graduate Diploma of Occupational Hazard Management who have no undergraduate degree - on the basis of extensive work experience and knowledge. Dust explosions are the result of high concentrations of combustible dust particles rapidly combusting inside an enclosed space. When mixed with oxygen these fine particles can ignite when in contact with a spark, metal ember, cigarette butt or other source.Wooden box with metal edges on top. Chrome handle and indicator buttons for Power, Air, Compression, Spark. Hinged front section that opens to show contents. Electrical Engineering lecturer Graeme Hood remembers Paul Brass demonstrating this unit to show how dangerous a combination of dust and electricity it. The demonstration would take about 1 minute, and would culminate with a loud bang which would make everyone jump. This item was probably last used by Paul Brass.viosh, victorian institute of occupational safety and health, dust explosion, combustible dust particles, enclosed space, spark, ember, cigarette, oxygen

laboratory