Blueprint of drawing of hydraulic accumulator blueprint, mechanical engineering, technical drawing, n. edwards

RAF Lead acid battery accumulator, type D 12 V 25 AH. Black with lid of bakelite construction fitted to battery by metal clips. A leather strap is fitted for carrying. There are two labels inside on the terminals. "April 1945 W"battery, lead acid, raaf

A 'Brunsviga' adding Machine used to educate people who were blind or vision impaired in arithmetic during in the early 1900s. The firm Grimme, Natalis & Co (GNC) was established in 1871 to build sewing machines and domestic appliances at Braunschweig (Brunswick) in Germany. In 1892 engineer Franz Trinks was instrumental in securing the manufacturing rights to the Odhner calculator patents. The first machines were built according to W.T. Odhner's 1890 design, and were distributed under the brand name "Brunsviga". Trinks continued to develop and refine the Brunsviga calculator over a period of almost 30 years. The brass rotor disks are 71mm in diameter, with the nine setting levers spaced on 9mm centres. The moving carriage has 10 places in the counter register and 18 in the accumulator, but the tens-carry mechanism only covers 10 of the 18 places. The carriage is positioned manually by releasing a latch and moving the assembly by hand to the required position. The registers are cleared by a full turn of the large wing nuts on either end. The mechanism is very basic, with no safety interlocks and no added features.Metal machine on wooden base.Brunsviga Patent Braunschweigoffice equipment and supplies, royal victorian institute for the blind

Diver's Submarine Electric Torches were first developed to give illumination for close examination work. They have to be self-contained, the older ones are powered by an accumulator type battery which could be recharged. Some models were fitted with a switch to turn the light off saving on the battery power. The lens is of a convex type and magnifies the light. Sometimes there was a protective grill across the glass or prongs to protect the glass from an impact. When fully charged the battery would last about seven hours. Torches are made from non-ferrous metal so as not to corrode in their watery environment. Siebe Gorman & Co Ltd has been producing hand-held, battery-powered, submarine electric torches for divers and the Ministry of Defence (MOD) since the 1920s. In 1961, the famous diving manufacturer C.E. Heinke merged with Siebe Gorman, and for a short while, torches were made with the combined 'Siebe Heinke' inscription. However, this linked inscription was later dropped, with a return to the Siebe Gorman name tag. Date of manufacture for these torches can be determined by their Admiralty Pattern (AP) number that was used to identify a particular item and were for naval stores use. Before NATO stock coding became more widely used, earlier MOD torches often have a simple four-digit group of AP numbers such as AP4456 or AP4458. In 1975 Siebe Gorman moved from their Neptune Works at Chessington in Surrey to a new location at Cwmbran in Wales and by this time their manufacture of diving equipment had declined. (For additional historic company information on Siebe & Gorman see notes section this document.)The item is significant as it gives us a snapshot into marine history and the development of diving equipment generally, especially that used for salvage operations before and during WW2. The company that made the torch Siebe Gorman was a leading inventor, developer and innovator of marine equipment with its early developments in helmets, compressors and other diving equipment. Items that are today eagerly sought after for maritime collections around the world. The items that have been donated to the Flagstaff Hill collection give us an insight as to how divers operated and the dangers they faced doing a very necessary and dangerous job.Diver's Torch brass with heavy glass screw on piece with four lugs attached contact spring inside. Leather hand strap missing."Siebe Gorman and Co Ltd, Makers, London." Has "A.P.4458" inscribed on front above glassflagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, siebe, gorman, diver's torch, torch, diver, diving accessories

Diver's Submarine Electric Torches were first developed to give illumination for close examination work. They have to be self-contained, the older ones are powered by an accumulator type battery which could be recharged. Some models were fitted with a switch to turn the light off saving on the battery power. The lens is of a convex type and magnifies the light. Sometimes there was a protective grill across the glass or prongs to protect the glass from an impact. When fully charged the battery would last about seven hours. Torches are made from non-ferrous metal so as not to corrode in their watery environment. Siebe Gorman & Co Ltd has been producing hand-held, battery-powered, submarine electric torches for divers and the Ministry of Defence (MOD) since the 1920s. In 1961, the famous diving manufacturer C.E. Heinke merged with Siebe Gorman, and for a short while, torches were made with the combined 'Siebe Heinke' inscription. However, this linked inscription was later dropped, with a return to the Siebe Gorman name tag. Date of manufacture for these torches can be determined by their Admiralty Pattern (AP) number that was used to identify a particular item and were for naval stores use. Before NATO stock coding became more widely used, earlier MOD torches often have a simple four-digit group of AP numbers such as AP4456 or AP4458. In 1975 Siebe Gorman moved from their Neptune Works at Chessington in Surrey to a new location at Cwmbran in Wales and by this time their manufacture of diving equipment had declined. (For additional historic company information on Siebe & Gorman see notes section this document.)The item is significant as it gives us a snapshot into marine history and the development of diving equipment generally, especially that used for salvage operations before and during WW2. The company that made the torch Siebe Gorman was a leading inventor, developer and innovator of marine equipment with its early developments in helmets, compressors and other diving equipment. Items that are today eagerly sought after for maritime collections around the world. The items that have been donated to the Flagstaff Hill collection give us an insight as to how divers operated and the dangers they faced doing a very necessary and dangerous job.Divers torch, brass with glass lens , screw on piece with three lugs attached. Leather wrist strap attached & loose contact spring inside."Siebe Gorman and Co Ltd, Makers, London." Has A.P.4456 stamped on front faceflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village

Five 'Popular Radio Weekly Magazines. .1) Vol. 1, No. 1, 25 February 1925. (Purchasing a receiver, eliminating static, Morse Code, An Efficient one-valver, A Simple Crystal Circuit, Combining Valve and Crystle, the Alfred Hospital, Frank Tate on Radio. Images of Josie Melville, Alberto Zelmanm circuits) .2) Vo. 1, No. 14, 27 May 1925. (Purity amplifier, Popular Wireless, Oscillations, Marconi's Wireless Beam Transmitter, Resistance coupled Amplifiers, Condenser Losses) .3) Vol. 1, No. 2, 04 March 1925. (A Crystal Receiver, Medium Wave Four-Valver, The Harkness Circuit, A One-Valve Super, The Aerial Mast, The Police Patrol, C Batteries, A Two Crysal set, La Bela Lingvo, Plain Aerial. Images - Transmitting Aeroplace, A. Nicholson - Chief Commissioner of Police) .4) Vol. 1, No 15, 03 June 1925. (The Ham and Radiophone, A Good Circuit, How the Microphone Transmitter Works, A Reflex Circuit, A Millionaire's Radio Installation, Teh Deresnadyne, Crystal Detectors, Hints an Accumulators, 3LO, Selection Radio Parts) .5) Vol 1, No. 6, 01 April 1925. (The Renartz Tuner, A 600 foot aerial, Measuring your Receiver, Doctoring Your Set, Understanding What You Read, The Vernier Condenser, Radio and Railways, Who Can Build the Smallest Set.)radio, valve, electrical engineering, frank tate, alberto zelman

Typed letter on Kiel and Loveland letterhead (features a photograph of a driver in a car and Art Nouveau design). The letter relates to the closure of the bicycle business in Sturt Street, Ballarat and is signed by C.E. Kiel.Typed onto the letterhead: 'Dear Sir, Having disposed of our Motor Department we now beg to inform you that we are disposing of our Bicycle Business in Sturt Street so as to balance the books and terminate our partnership. We now take the opportunity of thanking you for your esteemed patronage to us during the past 14 years, and trust that our endeavours to please you have met with success. We would ask your assistance in clising down the books by an early remittance of all monies now due to us by your good self. again thanking you for past favours, We beg to remain, Yours faithfully, C.E. Kiel (overstamped 'Kiel and Loveland)bicycle, cycle, kiel and loveland, kiel, loveland, vulcanising, magneto, accumulator, motor cars, ferro engines, motor cycles, sporting goods, car duplicates, art nouveau, letterhead

Description: 80 pages. Published by RAAF. Published 29/4/1987. AAP 7272.050-3M Level of Importance: World.

Description: 60 pages. Published by RAAF. Puyblished 30/4/1984. AAP 7271.026-3M Level of Importance: . Author: Lt. Leslie Thorpe