This Boyle’s machine was made by the British Oxygen Company (BOC) in the 1950’s. The original Boyle's machine was invented by the British anaesthetist, Henry Boyle in 1917. His machine was a modification of the American Gwathmey apparatus of 1912, and became the best known early continuous flow anaesthetic machine. The Boyle’s machine was first made by Coxeter and Sons, under the direction of Lord George Wellesly, which was later acquired by the British Oxygen Company (BOC). Though a lot of changes have been made to the original design of the Boyle’s machine, the basic structure remains the same today.Green trolley on casters with flowmeter and vaporiser bottles attached to a stainless cross bar. There is a glass shelf at top of the trolley and a second glass shelf at base of trolley, above a pull out drawer. The pull out drawer contains 4 x black rubber masks, 3 x black rubber tubing connectors, 4 x seals, 1 a black corrugated rubber hose with red rebreather bag, red tube and masonite support board.Tin plate attached to upper portion of trolley: THE / BOYLE / apparatus / BY THE BRITISH OXYGEN CO. LTD.henry boyle, anaesthetic machine, gas, oxygen, flowmeter, nitrous oxide, british oxygen company, boc, coxeter and sons

In 1903 the oxyacetylene welding process was developed. Around the same time, new cryogenic air separation processes, based on work undertaken by Carl von Linde and others, replaced the barium oxide process. This paved the way for larger scale and more efficient production. British Oxygen Company, [1905 to 1969] was formally BRIN'S Oxygen Company Ltd from 1886 to 1905. In 1969 it became BOC. These Blowpipes were used at the Ballarat School of Mine c1916 Interesting article = 1917. https://trove.nla.gov.au/newspaper/article/1629321Boxed Universal Blow Pipe, presented under a perspex top. Pipes mounted by metal bar and hooks to polished wooden board. Display case is 69.0cm x 12.0cm x 25.0cmBoth pipes have metal plates indicating information of maker.blowpipes, ocyacetylene, ballarat school of mines, welding, cutting, commonwealth industrial gases, boc, brin's oxygen company, british oxygen company

1 Glass bottle marked to 300 CC. 1 Regulator fitting with accessory adaptors."ETHER", "300 C.C". Hand written, "ETHRANE" "THE BRITISH OXYGEN Co LTD" "LONDON ENGLAND" "PATENT NO 536536" ether, surgical equipment, surgery, anaesthetic, british oxygen company

A curved laryngoscope blade with bulb only. Its has an engraved detail about the place it belonged. Also, it has stamped on the blade the maker's seal and its material. At the base of the blade is stamped the place where it was made. The top of the blade has some scratches and the base has an oxide spot over the name of the place it was made. Engraved on the blade, Anaes. Dept. Alfred Stamped on the base of the blade, MADE IN ENGLAND Stamped on the blade left side, STAINLESS Stamped on the blade on top of the base a circular seal with the letters, BOC laryngoscope, light bulb, glass, blade, boc, british oxygen company

Large unused diamond shaped Austox label made for use on ethylene cylinders. Red with beige lettering.Information printed on label: AUSTOX [logo] / INFLAMMABLE / ETHYLENE / KEEP COOL / Product of the British Oxygen Co. Ltd. / Contents...............c.ft. ...............gallons (Imp.) / Weight of Full Cylinder ..........lbs. ..........ozs. / 31 OUNCES ETHYLENE = 166 1/2 GALLONS (IMPERIAL) / Use only moderate force when closing valve / Always test with water for leakage after using / Australian Oxygen & Industrial Gases / Pty. Ltd. / MELBOURNElabel, cylinder, cig, ethylene, austox, british oxygen company, boc, australian oxygen and industrial gases pty ltd, commonwealth industrial gases ltd

Robert James Minnitt introduced the concept of self-administered analgesia, using an apparatus designed and built in conjunction with London scientific instrument-maker, Charles King. The Minnitt apparatus met with considerable success and led to further modifications, including the introduction of the Queen Charlotte gas-air analgesia apparatus in 1936, manufactured by the British Oxygen Company.Black and white photograph of a Minnitt gas/air analgesia apparatus, in a Queen Charlotte case. The case is standing open with the apparatus inside. A label with instructions is on the left side of the case, and the apparatus is on the right side of the case. A nitrous oxide cylinder tank and valve is connected to a small box with a regulator. A tube with a breathing mask is attached to the box. The Queen Charlotte case has hinges on the side and a handle on the top.minnitt gas air apparatus, minnitt, nitrous oxide, queen charlotte case, anaesthetic equipment