The Bofors 40 mm gun, often referred to simply as the Bofors gun, is an anti-aircraft/multi-purpose autocannon designed in the 1930s by the Swedish arms manufacturer AB Bofors. It was one of the most popular medium-weight anti-aircraft systems during World War II, used by most of the western Allies as well as by the Axis powers. The shells were manufactured according to a British design after it was discovered that the Swedish shells had much too sensitive a contact fuse, "which functioned on impact with rain drops". Although the shells could nominally reach out to 11,000 yards (10,000 meters), almost all the shells manufactured had self-destroying tracers that detonated the rounds at a range of 4000-5000 yards (3700-4600 meters.) This helped prevent friendly fire incidents or other collateral damage. In addition to the TNT bursting charge, the shell contained a pellet of powdered magnesium and aluminum as an incendiary. Production of ammunition peaked at 12 million rounds per month in the winter of 1944. Ammunition type Contact fused HE/incendiary fixed shell. AP shells were also available. Projectile weight 1.985 lb 0.80 kg Velocity 2890 feet/s 881 m/s Maximum elevation 90 degrees Range 11,000 yards 10,000 meters Altitude 22,800 feet 6950 meters Rate of fire 120 rounds per minuteCollected by Norman Hall D.J Hall 17455 RAN2 shells (complete) for a Bofors 40mm Anti Aircraft Gun used by the R.A.N.See Imagesbofors 40 mm, anti aircraft gun, shell, r.a.n. bofors gun, world war ii, wwii, norman hall

Set of two books printed in full colour on gloss white paper, centre stapled providing information for transport staff involved in the Commonwealth Games held in Melbourne 16-26 March 2006. Both have details of event for train, tram and bus crews, event program and transport map, including shunting details, announcements, bus replacement services, electric or automatic points, route alterations and security information. On the back cover has contact telephone numbers and web addresses. Both have the Met Link logos on the front covers. Items contained with in a plastic envelope with a black neck band. .1 - "Melbourne 2006 Commonwealth Games - 16-26 March 2006" - Yarra Trams Staff Booklet" - 80 pages with a photo of 5014 on front cover. 2nd copy added 11-12-17 from Donation of Ron Scholten. .2 - "Melbourne 2006 Commonwealth Games - 16-26 March 2006" - Connex and V/Line Staff Booklet" - 96 pages with a Alstom suburban train and Bombardier Velocity set on the front covers. 2 copies held.trams, tramways, commonwealth games, connex, v/line, yarra trams, metlink

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

The L1A1 SLR rifle was the first 'best friend' for infantry and other elements of the Australian Armed Forces; the rifle was the closest focus for troops during training and drill.The L1A1 SLR rifle was often the survival factor for troops in a combat situation hence it was treated reverently by the soldier and kept in best working order even in extreme circumstances.LiA1 SLR Rifle. Known as the L1A1 SLR (Self Loading Rifle) and is known for is straightforward fieldstripping and robust nature. The L1A1 is the British version of the Belgian FN FAL rifle. The L1A1 is a reliable, hard-hitting, gas-operated, magazine-fed semi-automatic rifle. The weapon was extensively used by the Australian Infantryman. The L1A1 SLR rifle was the initial general issue to infantrymen and other elements of the Armed Forces. L1A1 SLR (Self Loading Rifle) Type: Battle rifle Wars: Cold War, Vietnam War, Falklands War Designed: 1951 Manufacturer: Fabrique Nationale (FN) Number built: Over 1 million Weight: 4.0–4.96 kg (8.8–10.2 lb) Length: 1,090 mm (43 in) Barrel length: 533 mm (21 in) Cartridge: 7.62 mm NATO Rimless Calibre: 7.62 mm (.308 in) Action: Gas and return spring operated, tilting block Rate of fire: 20 rounds/min semi auto Muzzle velocity: 823 m/s (2,700 ft/s) Effective range: 600 m (656 yd) Feed system: 20-round detachable box magazine Sights: Aperture rear sight, hooded post front sight Accesaries bayonet, sling, grenade launcher, telescopic sights Serial No. AD8100176vietnam, vietnam war, diamond valley vietnam veterans sub branch

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

Born in Ireland, John Drummond Kirkland trained as a chemical analyst through apprenticeship in a medical laboratory in Dublin, before migrating to Australia in 1852 and moving to Melbourne in 1855. While still an undergraduate medical student at the University of Melbourne, he was appointed lecturer in chemistry following the sudden death of John Macadam in 1865. Due to the enthusiastic support of his fellow students this temporary role became a permanent appointment the following year. Kirkland continued his studies, graduating in medicine in 1873 and surgery in 1880. His son, John Booth Kirkland, was appointed as his assistant in 1878, later leading to accusations of nepotism. In 1882 John Drummond Kirkland became the University?s first professor of chemistry and metallurgy, continuing until his death in 1885. Today?s researchers use a high performance computing facility named ?Kirkland? after the first Professor of Chemistry at the University of Melbourne. Chemistry was still controlled by the medical school during Kirkland?s career, but became part of the science degree from 1886, along with the appointment of David Orme Masson as professor. Kirkland struggled for University funding to buy new apparatus. To compensate, he bought much from his own personal funds, including analytical chemistry equipment. Chemistry was first taught at Melbourne in the medical school, located in the area now occupied by Physics and the Ian Potter Museum of Art. (Sir) David Orme Masson was Professor of Chemistry at the University of Melbourne from 1886 to1923. As well as being a distinguished teacher and researcher, he contributed significantly to Australian scientific and public life, being instrumental in the establishment and governance of many important bodies including the CSIRO. Masson supported Antarctic research for 25 years, beginning with Douglas Mawson?s expedition of 1911. Born in England and receiving an MA, BSc and DSc from the University of Edinburgh, he was a gifted, elegant and disciplined lecturer and a researcher of substance. His research work included the theory of solutions, from which emerged the term ?critical solution temperature?; the periodic classification of the elements; and the velocity of migration of ions in solutions. Much of his research was done in collaboration with talented students such as David Rivett and his own son Irvine Masson. Masson was knighted in 1923. He is commemorated by the Masson Theatre and Masson Road at the University of Melbourne; a mountain range and island in Antarctica; a portrait painting by William McInnes in the foyer of the School of Chemistry; the Masson lectureship from the Australian National Research Council; and the Masson memorial scholarship from the Royal Australian Chemical Institute.Stocks used in the Blackie - Masson - J.B.Kirkland work.

Handwritten notes from a Bendigo Advertiser report, Thursday June 16th 1910. Management had for some time been apprehensive that the flooding in the deep mines to the south would affect them. Lansell's 180 took the precaution of baling. On the Tuesday night the men at the Victoria Quartz had a sensational experience. The storage dam at 3324 ft level receives the overflow from the flooded mines to the south. The level connects with the 3310 level at the Big 180. The water flows uninterrupted into thestorage dam which has a capacity of about 270 tanks. The dam had been emptied on Tuesday morning and work continued until 10 pm that night. The platman noticed that the water was coming down the shaft in a regular torrent. They didn't take much notice as they thought it was a leakinig outlet valve on the ascending tank. At 11 pm the releiving shift came down the shaft and said that the dam at 3,324 ft must be overflowing. The velocity of the water pouring down the shaft increased and the men made a hurried exit from the bottom of the shaft which is down 310 ft from the 4.254 ft plat (a total depth of 4,564 ft). An inspection of the dam at the 3324 ft level found it to be overflowing. By morning (Wednesday) the shaft had filled, and the water rose to 7 ft in the plat at 4254 feet. Mining inspector hgave orders that men were not to go below the 3324 ft level. Baling continued without cessation at the Big 180 all day and could not lower the water. Drilling machines etc and a powerful air winch at the 4254 ft plat are under water. An inspection made of the 3100 ft level at the 180 mine where the workings are connected with the New Chum & Victoria showed that water was running strongly from that mine proving that the inrush was due to flooded water from the southern deep mines to the south. Document from Albert Richardson Collection of mining history. Document from Albert Richardson Collection of mining history.document, gold, drainage problems, new chum drainage scheme, miners sensational experience at the victoria quartz, bendigo advertiser 16/6/1910 page7, lansell's 180, big 180, new chum & victoria

The carronade was designed as a short-range naval weapon with a low muzzle velocity for merchant ships, but it also found a niche role on warships. It was produced by the Carron Iron Works and was at first sold as a complete system with the gun, mounting, and shot altogether. Carronades initially became popular on British merchant ships during the American Revolutionary War. A lightweight gun that needed only a small gun crew and was devastating at short range was well suited to defending merchant ships against French and American privateers. The invention of the cannon is variously attributed to Lieutenant General Robert Melville in 1759, or to Charles Gascoigne, manager of the Carron Company from 1769 to 1779. In its early years, the weapon was sometimes called a "mellvinade" or a "gasconade". The carronade can be seen as the culmination of a development of naval guns reducing the barrel length and thereby the gunpowder charge. The Carron Company was already selling a "new light-constructed" gun, two-thirds of the weight of the standard naval gun and charged with one-sixth of the weight of the ball in powder before it introduced the carronade, which further halved the gunpowder charge. The theory of its design was to use less powder and had other advantages that were advertised in the company's sales pamphlet of the time, state. The smaller gunpowder charge reduced the barrel heating in action, also reduced the recoil. The mounting, attached to the side of the ship on a pivot, took the recoil on a slider, without altering the alignment of the gun. The pamphlet advocated the use of woollen cartridges, which eliminated the need for wadding and worming, although they were more expensive. Carronades also simplified gunnery for comparatively untrained merchant seamen in both aiming and reloading that was part of the rationale for adopting the gun. Other advantages promoted by the company were. The replacement of trunnions by a bolt underneath, to connect the gun to the mounting, reduced the width of the carriage that enhanced the wide angle of fire. A merchant ship would almost always be running away from an enemy, so a wide-angle of fire was much more important than on a warship. A carronade weighed a quarter as much as a standard cannon and used a quarter to a third of the gunpowder charge. This reduced charge allowed Carronades to have a shorter length and much lighter weight than long guns. Increasing the size of the bore and ball reduces the required length of the barrel. The force acting on the ball is proportional to the square of the diameter, while the mass of the ball rises by the cube, so acceleration is slower; thus, the barrel can be shorter and therefore lighter. Long guns were also much heavier than Carronades because they were over-specified to be capable of being double-shotted, (to load cannons with twice the shot, for increased damage at the expense of range), whereas it was dangerous to do this in a carronade. A ship could carry more carronades, or carronades of a larger calibre, than long guns, and carronades could be mounted on the upper decks, where heavy long guns could cause the ship to be top-heavy and unstable. Carronades also required a smaller gun crew, which was very important for merchant ships, and they were faster to reload. The small bore carronade and carriage is part of a collection of nineteenth Century Flagstaff Hill Guns and Cannon, which is classified as being of significance and was made a few years after the beginning of Queen Victoria's reign in 1837 and fires a 6 lb pound cannon ball. This nineteenth century artillery piece is a rare and representative item of artillery of this era, used predominately on ships, both military and merchant. The artillery piece, individually and as part of the collection, is highly significant for its historical, scientific and aesthetic reasons at the state, national and world level. This carronade represents the methods of artillery technology, its advancement and its modifications to suit dangerous situations that sailors encountered from attacks from free booters (pirates, living from plunder) or others at the time. Carronade firing a 6 lb cast iron ball, with a smooth bore barrel 6.5 cm in dia the item is mounted on stepped wooden carriage with wooden wheels. Cannon barrel can have its elevation adjusted via a wooden wedge. Gun carriage has loops for locating and holding in position to a deck by ropes. Carriage is a replica made 1982Cast into the barrel is the royal emblem of Queen Victoria (VR "Victoria Regina") indicating the carronade was cast during Queen Victoria's reign / 1840 & 4-2-0 denoting the weight of the barrel. Right hand trunnion has a serial number “8708”. Also on top of the barrel is the British "Board of Ordinance" identifying mark a broad arrow indicating the carronade was in military use. flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, colonial defences, victoria’s coastal defences, warrnambool fortification, warrnambool garrison battery, warrnambool volunteer corps, ordinance, armaments, garrison gun, smooth bore cannon, carronade, black powder, 12 pounder, 1840, artillery, lieutenant general robert melville, charles gascoigne, carron company, mellvinade, gasconade

This deck cannon is believed to be a replica Carronade as it has no foundry mark, year of manufacture, proof marks or weight of carronade on it. However, its design matches the design of Carronades used in the early to mid 19th century. History: The carronade was designed as a short-range naval weapon with a low muzzle velocity for merchant ships, but it also found a niche role on warships. It was produced by the Carron iron works and was at first sold as a complete system with the gun, mounting, and shot altogether. Carronades initially became popular on British merchant ships during the American Revolutionary War. A lightweight gun that needed only a small gun crew and was devastating at short range was well suited to defending merchant ships against French and American privateers.   Its invention is variously attributed to Lieutenant General Robert Melville in 1759, or to Charles Gascoigne, manager of the Carron Company from 1769 to 1779. In its early years, the weapon was sometimes called a "mellvinade" or a "gasconade". The carronade can be seen as the culmination of a development of naval guns reducing the barrel length and thereby the gunpowder charge. The Carron Company was already selling a "new light-constructed" gun, two-thirds of the weight of the standard naval gun and charged with one-sixth of the weight of the ball in powder before it introduced the carronade, which further halved the gunpowder charge. The theory of its design was to use less powder and had other advantages that were advertised in the company's sales pamphlet of the time, state. The smaller gunpowder charge reduced the barrel heating in action, also reduced the recoil. The mounting, attached to the side of the ship on a pivot, took the recoil on a slider, without altering the alignment of the gun. The pamphlet advocated the use of woolen cartridges, which eliminated the need for wadding and worming, although they were more expensive. Carronades also simplified gunnery for comparatively untrained merchant seamen in both aiming and reloading that was part of the rationale for adopting the gun. Other advantages promoted by the company were. The replacement of trunnions by a bolt underneath, to connect the gun to the mounting, reduced the width of the carriage that enhanced the wide angle of fire. A merchant ship would almost always be running away from an enemy, so a wide-angle of fire was much more important than on a warship. A carronade weighed a quarter as much as a standard cannon and used a quarter to a third of the gunpowder charge. This reduced charge allowed Carronades to have a shorter length and much lighter weight than long guns. Increasing the size of the bore and ball reduces the required length of the barrel. The force acting on the ball is proportional to the square of the diameter, while the mass of the ball rises by the cube, so acceleration is slower; thus, the barrel can be shorter and therefore lighter. Long guns were also much heavier than Carronades because they were over-specified to be capable of being double-shotted,(to load cannons with twice the shot, for increased damage at the expense of range). Whereas it was dangerous to do this in a carronade. A ship could carry more carronades, or carronades of a larger caliber, than long guns, and carronades could be mounted on the upper decks, where heavy long guns could cause the ship to be top-heavy and unstable. Carronades also required a smaller gun crew, which was very important for merchant ships, and they were faster to reload. Additional notes: Cannon cast in England, Wales and Scotland had their imperial weight chiselled or engraved in the format of 4-2-0 on the bottom of the cascabel, indicating the weight of the cannon as 4 hundredweight, 2 quarters and 0 pounds. Since a hundredweight equals 112 pounds and a quarter weight is 28 pounds the total weight is 504 pounds or about 228 kilograms. The small bore replica carronade and carriage is part of a collection of nineteenth Century Flagstaff Hill Guns and cannons, and is a representation of carronades used from the early 18th up to the 1850s on merchant and military ships particularly the British Royal Navy until 1850. This example is not significant in the historic sense but demonstrates the type of artillery used aboard vessels of the time for protection & offensive military actions. Cannon, cast iron, small smooth bore cannon on the stepped wooden carriage with wooden wheels. It appears to fire a 12-pound cannonball. The Cannon barrel can have its elevation adjusted via a sliding sloped block at the rear of the cannon. Gun carriage has loops for locating and holding the carriage in position with the use of ropes. It is believed this carronade is a replica of a mid-to-late 19th-century Carronade cannon.Cast into metal; [Royal emblem of Queen Victoria (VR "Victoria Regina")]warrnambool, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, cannon, naval cannon, cannon on carriage, 19th century cannon, fortifications, smooth bore cannon, 12 pounder, carronade, artillery, replica, deck cannon, cannon in carriage, ship cannon

The Mark II Pilot Balloon Slide Rule was made of wood laminated with heavy white plastic with a length of 24.5-in. and width of 2.5 inches. Mark II rules were manufactured in Australia by W & G (Melbourne). The W & G rule differs only slightly from the English A. G. Thornton LTD rule. The W & G rule uses serif fonts and has some fiducial marks that the English rule lacks. Exact dates of production are not known but the MK II is known to have started production by 1927. The printed scales are engraved in the plastic faces. The slide rule has 4 captive cursors (glass windows and brass guides) that ride in slots on the top and bottom edges. Each can be moved independently of one another. The cursors are missing from this item. Brass knobs at both ends of the slide facilitate its movement. The case is fabric covered wood with felt lining. No known history for this item as located in a property after purchase. The Pilot Balloon slide rule is used to convert the observed azimuth and elevation readings into wind velocity and direction records. The use of slide rules was abandoned with the wide spread adoption of computers and programs to do the calculations, as well as the decline in the use of optical pilot balloon theodolites.Made in Australia by White & Gillespie (Melb) Pty Ltd. Established in 1910, the firm was involved mainly in printing plate manufacture, but during the Second World War it manufactured a variety of navigational aids and range finding devices for the military. About 250,000 instruments were made during that period. After the war the company produced, among other items, drawing instruments and slide rules. The long narrow case is fabric covered wood with felt fabric lining containing a long black laminate ruler with numerous white markings and numbers. Top of the ruler is in three sections with the centre section movable by small gold metal knobs at either end. This slide rule contains a engraved notation on the rear face "IMPORTANT. NORMALLY NUMBER OF GRATICULE SCALE DIVISIONS PER RADIAN (K) X LENGTH OF TAIL IN FEET (I) = 12X 105. IN OTHER CASES MULTIPLY GRATICULE READINGS BY 1.2/KI BEFORE CALCULATION ON RULE" Top of Slide Rule - RAAF Ident No G268/480 Serial WG/22pilot balloon slide rule, raaf