An Austox "Dental and Midwifery" (D-M) Machine on a stand with castors. The machine has attached black corrugated tubing with masks to go over the nose and mouth. There are two white, circular chambers on either side of the machine into which oxygen and nitrous oxide respectively were piped.anaesthesia, midwifery, dentistry, nitrous oxide, oxygen gas, oxygen

When Hewitt introduced his regulating stopcock in 1887, attempts were made to dilute the nitrous oxide with air and so obviate the element of asphyxiation. The method was to be seen in London, mainly in dentistry and minor surgery, so late as 1930. It was not very successful. To give even 10% of oxygen (which is not enough) the gas-mixture must contain 55% of air and 45% of nitrous oxide. The latter is thus so diluted by atmospheric nitrogen as to be incapable of producing anaesthesia except by asphyxiation. "Gas-air" was confined to analgesia, for example in midwifery. (Source: Penn catalogue)Brown leather facemask attached to metal inhaler and stopcock device that has been sectioned to reveal its inner workings. The various exposed channels have been painted either green, red, blue or purple.Engraved into side of stopcock: HEWITT'S / N20-02 / 1895 / G. Kaye sect. 1952. •Stamped into other side of stopcock: [indecipherable] BARTH & CO. / SOLE MAKERS / 54. POLAND STREET LONDON.W.frederic hewitt, stopcock, nitrous oxide, oxygen, gas-air

The oxygen cylinder is a small, round-based cylinder painted in black that has been sectioned in the shoulder, neck, and valve area for teaching purposes. The sectioned valve area is wooden and has been colour-coded with red and blue paint for teaching purposes. There is a metal screw embedded into the wooden valve. The manufacturer's name, "G. BARTH & CO.", has been stamped into the back of the valve.Inscription on back of valve. "G. BARTH & CO."anaesthesia, oxygen, gas, sectioned

The Clark apparatus is sectioned across the top on one side only, and the inside of the sectioned area is painted with red and blue. Part of the outside of the main body of the apparatus is painted red. The apparatus has four identical arms coming out of opposite sides of the body that end in spoon-shaped loops, each with screws connected to black knobs coming through them. There is a red handle that runs parallel to the body and arms of the apparatus, jutting out from the middle of the top of it. The apparatus is on a black cast iron stand on castors, with gold decoration throughout.ether, nitrous oxide, oxygen, gas, anaesthesia

The Austox "Dental and Midwifery" (D-M) machine has been sectioned for teaching purposes. Namely, one of the two white, circular chambers on either side of the machine has been sectioned to show the tambour inside, as has the central valve and one of a connection point below the chamber on the left. The two chambers are connected to the central pole by thin metal tubes and are attached with metal framing.anaesthesia, dentistry, midwifery, nitrous oxide, oxygen, oxygen gas, sectioned, sectioning

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 steel 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

The Orsat was returned to the Historical Collection by Len Taylor, former staff member of SMB. For a period of time it was with Gary Price who rebuilt the Orsat to working order. Gary used a similar apparatus at Sidchrome and Ballarat Heat Treatment Pty. The Orsat apparatus is used to measure volumes of Carbon Dioxide, Oxygen, and Carbon Monoxide within a fixed volume of a sample of gas.Timber box with lift up front revealing a number of valves, pressure measure and glass container of red liquid attached to hose. Gas analysis apparatusorsat, len taylor, gary price, carbon dioxide, oxygen, carbon monoxide, gas, measure, apparatus

Medium sized diamond shaped label made for use on cyclopropane cylinders. White with a dark orange background and black and white lettering.Information printed on label: AUSTOX [logo] / INFLAMMABLE / CYCLOPROPANE / FOR ANAESTHESIA / KEEP COOL / (PRODUCT OF THE OHIO CHEMICAL & MFG. CO.) / CONTENTS: OZ. GALLONS (IMP.) / GROSS WT. CYLINDER LBS. OZS. / TARE WT. CYLINDER LBS. OZS. / AUSTRALIAN OXYGEN & INDUSTRIAL GASES / PTY. LTD. / 550 LATROBE STREET / MELBOURNE / C1label, cylinder, cig, cyclopropane, austox, ohio chemical and mfg company, australian oxygen and industrial gases pty ltd, commonwealth industrial gases ltd

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

Large unused diamond shaped Austox label made for use on carbogen cylinders. Beige with a black border, and green and red lettering.Information printed on label: SPECIALLY PREPARED FOR MEDICAL USES. / AUSTOX [logo] / COMPRESSED / CARBOGEN / CO2..........% OXYGEN.......... / (The percentages stated above are subject to tolerance) / KEEP COOL [in red] / CONTENTS: Imperial Gallons / WARNING - Great caution must be exercised to prevent any oil entering the cylinder, or being applied to the valve or fittings. The use of oil may lead to a dangerous explosion. [in red] / Australian Oxygen & Industrial Gases / Pty. Ltd. / MELBOURNElabel, cylinder, austox, australian oxygen and industrial gases pty ltd, carbogen, compressed carbogen

The Renton circle valve absorber has been sectioned to show the valve connection points. The inside is a creamy brown colour, encased in black on the outside. A larger silver metal valve runs through the centre, and to it attaches a flat, reflective silver metal disc as a dial indicating "EXH", "ABS", and "REB", with a black needle. The system includes tubes and valves for oxygen entry, gas expiration, connection to soda lime cannister, rotary valve, and rebreather bag, with a broken, deteriorated segment of the bag still attached.valve, anaesthesia, soda lime, rebreathing

Large unused diamond shaped Austox label made for use on ethylene cylinders. Beige with red lettering.Information printed on label: SPECIALLY PREPARED FOR MEDICAL USE / AUSTOX [logo] / INFLAMMABLE / ETHYLENE / KEEP COOL / Product of the OHIO CHEMICAL & MFG. CO., CLEVELAND. / 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, ohio chemical and mfg company, australian oxygen and industrial gases pty ltd, commonwealth industrial gases ltd

Large unused diamond shaped Austox label made for use on carbon dioxide cylinders. Black and beige background, with beige and red lettering.Information printed on label: SPECIALLY PREPARED FOR MEDICAL USES. / AUSTOX [logo] / COMPRESSED / CARBON DIOXIDE / KEEP COOL [in red] / WEIGHTS: / GROSS..........LBS. ........OZS. / TARE..........LBS. ........OZS. / NET..........LBS. .......OZS. / Contents Imp. Gallons / USE NO OIL OR GREASE ON VALVE [in red] / AUSTRALIAN OXYGEN / AND / INDUSTRIAL GASES / PTY. LTD. / MELBOURNElabel, cylinder, carbon dioxide, cig, commonwealth industrial gases ltd, compressed carbon dioxide, austox, australian oxygen and industrial gases pty ltd

Large unused diamond shaped Austox label made for use on nitrous oxide cylinders. Dark purple, violet and white background, with white, violet and red lettering.Information printed on label: SPECIALLY PREPARED FOR MEDICAL USES. / AUSTOX [logo] / NITROUS OXIDE / KEEP COOL / WEIGHTS: / GROSS..........LBS. ........OZS. / TARE.......... LBS. ........OZS. / NET..........LBS. ........OZS. / Contents Imp. Gallons / WARNING. - Great caution must be exercised to prevent any oil entering the cylinder, or being applied to the valve or fittings. The use of oil may lead to a dangerous explosion. / AUSTRALIAN OXYGEN / AND / INDUSTRIAL GASES / PTY. LTD. / MELBOURNElabel, cylinder, austox, australian oxygen and industrial gases pty ltd, nitrous oxide

Nitrous oxide has been used for anaesthesia in dentistry since December 1844, where Horace Wells made the first 12–15 dental operations with the gas in Hartford. Its debut as a generally accepted method, however, came in 1863, when Gardner Quincy Colton introduced it more broadly at all the Colton Dental Association clinics, that he founded in New Haven and New York City. Hospitals administer nitrous oxide as one of the anaesthetic drugs delivered by anaesthetic machines. Nitrous oxide is a weak general anaesthetic, and so is generally not used alone in general anaesthesia. In general anaesthesia it is used as a carrier gas with oxygen for more powerful general anaesthetic drugs.Medium size empty blue coloured cylinder with rounded base and painted white neck once containing Nitrous Oxide. A large blue on white diamond shaped label is adhered onto the main cylinder body.Printed on manufacturer's label: 'CIG [logo] / [blank weights table] / DRY / NITROUS OXIDE / C.I.G. (Victoria) PTY. LTD. / 50 LA TROBE STREET, MELBOURNE C3 / Telephones: FJ 6681 / FJ 4164 / USE NO OIL / OR GREASE'nitrous oxide, dental anaesthesia, dental anesthesia, gardner quincy colton, colton dental association

Red hardcover book, 690 pages, including index and illustrations.non-fictionintermediate, inorganic chemistry, j w mellor, andrew a orrock, properties of gases, the chemical nature of air, ice water and steam, mixtures and compounds, three gases hydrogen oxygen and nitrogen, the atomic hypothesis, the composition of water

Bendigo Advertiser article, 1st August ,1995, titled 'Old Mines pose risk to children'. Children are playing in former mine sites, entering shafts and stopes that pose a dangerous threat to their health. Some sites have low oxygen levels in the stopes and there can be large 'amounts of hydrogen sulphide, or 'rotten egg gas'. Black and white photo of Peter Bentley, Mining and Extractive Industries Co-ordinator for DNRE, inspecting the Old McDuff mine site in Eaglehawk.gold mining, bendigo, sandra burns, mineral education, spring gully primary school

A candle snuffer is an instrument used to extinguish burning candles. This is accomplished by smothering the flame with a small metal cup that is suspended from a long handle, and thus depriving it of oxygen. The use of a candle snuffer helps to avoid problems associated with blowing hot wax. Candle snuffers are still commonly used Churches. Prior to the introduction of gas and electricity, candles and kerosene lamps were used for lighting in households after sunsetEvery Early settlers depended on candlelight after sunset and candle snuffs were a safe, clean and efficient way to extinguish the candle flameThis candle snuff has a brass handle with a turned polished wood tip. The brass cup, that is placed over the flame to extinguish it, is decorated with an engraved brass moth.early settlers, pioneers, moorabbin, bentleigh, ormond, market gardeners, lights, lamps, candles

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

Black and white photograph of the head of a portable Foregger "Metric" Gas Anaesthesia Apparatus. The apparatus has glass flowmeters and controls for fine and coarse oxygen, cyclopropane, nitrous oxide and carbon dioxide. There is also an ether container and a blood pressure nanometer.•Handwritten in grey pencil on reverse: Dr. Desai's Special Metric •Handwritten in black ink on reverse: III. •Handwritten in grey pencil on reverse: dvpd.anaesthetic equipment, anaesthetic machine, flowmeter, foregger metric gas anaesthesia apparatus, oxygen, nitrous oxide, carbon dioxide, cyclopropane

Large unused hexagonal shaped CIG label made for use on carbogen cylinders. Beige and green background with black lettering.Information printed on label: CIG MEDICAL SECTION [logo] / OXYGEN 90% CARBON DIOXIDE 10% / (These Percentages are subject to a tolerance) / Contents..........Imp. Gallons / COMPRESSED / CARBOGEN / C.I.G. (Victoria) Pty. Ltd. / 550 Latrobe Street, Melbourne, C.3 / Telephone: FJ6681 / USE NO OIL / OR GREASElabel, cylinder, cig, carbogen, compressed carbogen, oxygen, carbon dioxide, cig victoria

A funnel, held above the patient's face, was almost the standard of giving oxygen until c.1930. It was quite useless, enriching the inhaled atmosphere by only about 3% of oxygen.Clear dimpled glass in the shape of a funnel, with red strong running through the centre, and tied to one side.oxygen, oxygen therapy, funnel, cig, commonwealth industrial gases

The Dräeger Pulmotor was developed in 1907. It addressed previous concerns about lung injury, by limiting both the inspiratory and expiratory pressures. Although still controversial, the Pulmotor was widely distributed and commercially successful. Oxygen from cylinders provided both the inspiratory gas flow and the driving mechanism. Expiration was an active process and gases were sucked from the lungs by negative pressure created by a Venturi effect. This device came with a facemask and harness, with a caution that the operator should take care to prevent air entering the stomach.Draeger resuscitation kit, inside wooden case with handle. Case contains small heavy gas cylinder with large beige handwritten 'S. M E' inscription on one side. Due to water damage case missing pieces of plywood in corner and floor of case bubbled and swollen.|Rubber decomposed rigidinspiratory, expiratory, pulmotor, negative pressure

With the introduction of nitrous oxide for patients undergoing dental treatment, 100% nitrous oxide was usually administered as an anaesthetic. This caused the patient to lose consciousness quickly and could also cause severe hypoxia. In the late 1890s, dentist Samuel Stockton White introduced this two cylinder apparatus, which could administer oxygen with N2O.Early model apparatus with cast iron stand, and two gas bottles. Comes with two canvas gas bags and a detached metal mask and fabric connecting tube.samuel stockton white, nitrous oxide, oxygen, hypoxia

The Coxeter-Mushin carbon dioxide absorber consists of the main metal body, painted aquamarine, fixed to a stand. The cylindrical silver metal cannister on the left was used to contain ether, while that on the right contained soda lime. The apparatus has been sectioned to show the inside of the two cannisters, the right of which has an arrow drawn inside to indicate the flow of air breathed out by a patient. The front cover over the control dials has also been removed to show the mechanism. The two circular holes above the dials, facing forward, are where two corrugated tubes would attach; both of these tubes attached to the mask of the patient. The round yellow knob in the centre controls the Compensating Valve, which allowed the anaesthetist to raise or lower the rebreathing bag to allow air into the circuit or expel anaesthetic gas.anaesthesia, carbon dioxide, ether, soda lime

This gas anaesthesia machine comprises a four yolk manifold, two circular metal components for nitrous oxide and two for oxygen. It is mounted atop a four pointed stand on casters for portability. In addition to reducing valves and regulators, the main stand also supports a cream-coloured, cylindrical Austox fractional rebreather and an ether vaporiser with variable bypass control within a circular glass container. portable, anaesthesia, midwifery, dentistry, obstetrics, oxygen, nitrous oxide, commonwealth industrial gases ltd, cig, austox fractional rebreather, ether vaporiser, variable bypass control, 1950

This object dates back to 1925 and was sectioned by Dr Geoffrey Kaye in 1938. Flowmeters were attached to an anaesthetic machine to measure the flow rate of gas or liquid.Metal cylinder with glass inner chamber and gauge inside. The object has been sectioned for teaching purposes.Inscription on top screw valve. "K/38, Screw Lightly, Oxygen Fine." Inscription on back of top screw valve. "Direct Ox." Inscription on top of flowmeter tube. "G. Kaye fecit. 1938"flowmeter, water depression, gas, sectioned, slight feed, anaesthetic machine

Sir Frederick William Hewitt was a great advocate of nitrous oxide anaesthesia, mainly for short procedures. In 1885, he reviewed the methods of administration and concluded that accurately fitting valves were essential at the commencement of the inhalation, in order to ensure the rapid washout of air from the lungs; and there was a distinct advantage in allowing some rebreathing of nitrous oxide towards the end of inhalation. He thus devised the stopcock. The stopcock consists of a cylinder with two rotating sleeves and two rubber flap valves. The arrangement allows air to be breathed either through the valves or rebreathed to and from the bag; nitrous oxide to be breathed either through the valves from the bag and out to the atmosphere or rebreathed to and from the bag. Soon after the introduction of this stopcock, there was an increased interest in administering oxygen in combination with nitrous oxide.Amber coloured ether inhaler, with leather mask, celluloid shield and inflatable cushion with attached Hewitt's stopcock.hewitt, stopcock, celluloid, ether, inhaler, mask, rebreathing