Dr. Joseph Clover (1825-1882), an English physician, first described his Portable Regulating Ether Inhaler on Jan. 20, 1877. Clover was an especially sought after anesthesiologist and early pioneer in the specialty. This was the best-known of many inhalers that Clover designed. The dome-shaped reservoir was turned to points on a control dial to gradually increase or decrease the percentage of the air that passed over the ether. Several inventors based new inhalers on this, while the original continued to be manufactured as late as the beginning of WWII.Metal dome shaped chamber with an elbow joint for attaching a rebreather. A cotton rebreather bag is attached.Engraved on dome: Mayer & Meltzer / London / Clover's Inhalerjoseph clover, edward henry embley, closed administration, rebreather

Dr. Joseph Clover (1825-1882), an English physician, first described his Portable Regulating Ether Inhaler on Jan. 20, 1877. Clover was an especially sought after anesthesiologist and early pioneer in the specialty. This was the best-known of many inhalers that Clover designed. The dome-shaped reservoir was turned to points on a control dial to gradually increase or decrease the percentage of the air that passed over the ether. Several inventors based new inhalers on this, while the original continued to be manufactured as late as the beginning of WWII.Metal dome chamber with flat base and two circular pains of glass on each side of the dome as viewing holes. There is a long connector tube with an elbow joint attached to a bulb for a rebreather bag. A previous exhibition label, typed in black ink on buff coloured card, has been tied to the connector.Moulded into the connector for the rebreather bag: MAYER & MELTZER No 212827 •Printed in white on blue sticker: O.2.9. •Stamped into dome: MAYER & MELTZER / LONDON •Typed onto exhibition label: MODIFIED CLOVER'S INHALER. / c.1906. / Name unknown. the modification consists / in windows to shew the ether-level in the / bowl. The inhaler has otherwise the same / restricted channels as the model of 1877 / and shares its faults. / (Gift of Dr. A.E. Rowden White, 1939).joseph clover, wilson smith

Dr. Joseph Clover (1825-1882), an English physician, first described his Portable Regulating Ether Inhaler on Jan. 20, 1877. Clover was an especially sought after anesthesiologist and early pioneer in the specialty. This was the best-known of many inhalers that Clover designed. The dome-shaped reservoir was turned to points on a control dial to gradually increase or decrease the percentage of the air that passed over the ether. Several inventors based new inhalers on this, while the original continued to be manufactured as late as the beginning of WWII. Clover, to spare the patient the unpleasantness of induction with his "closed" inhaler (1877), suggested the "mitigated-ether" technique. The inhaler was fitted with a bypass tap for the reception of N2O. The bag was filled with the gas and anaesthesia was inducted a combination of N2O and asphyxiation. Ether was then admitted gradually by rotation of the bowl of the inhaler. When the patient had been duly "weaned over" to ether, the mask was lifted, the N2O allowed to escape, the bag refilled with exhaled air, and normal anaesthesia "a la Clover's inhaler" was continued.Metal domed chamber with a bulb attachment for rebreather bag, including a tap mechanism. Remnants of the paper rebreather bag are attached to the bulb. At the other end is a yellow facemask made of plastic (probably celluloid). The manufacturer's logo has been moulded into the dome of the chamber.Manufacturer's logo: THE HOLBORN / SURGICAL INSTRUMENT CO. LTD. / LONDON •Blue sticker with white writing: O.2.4.joseph clover, mitigated-ether, nitrous oxide, n2o, closed method

Dr. Joseph Clover (1825-1882), an English physician, first described his Portable Regulating Ether Inhaler on Jan. 20, 1877. Clover was an especially sought after anesthesiologist and early pioneer in the specialty. This was the best-known of many inhalers that Clover designed. The dome-shaped reservoir was turned to points on a control dial to gradually increase or decrease the percentage of the air that passed over the ether. Several inventors based new inhalers on this, while the original continued to be manufactured as late as the beginning of WWII.Metal domed chamber with a bulb attachment on an elbow joint for rebreather bag. There is also a connector for a facemask, but no facemask.Engraved on dome of chamber: Clover's Inhaler / Mayer & Meltzer / London •Moulded in to metal at connector: MAYER & MELTZER RD. NO. 212327joseph clover, closed administration, mayer & meltzer

Dr. Joseph Clover (1825-1882), an English physician, first described his Portable Regulating Ether Inhaler on Jan. 20, 1877. Clover was an especially sought after anesthesiologist and early pioneer in the specialty. This was the best-known of many inhalers that Clover designed. The dome-shaped reservoir was turned to points on a control dial to gradually increase or decrease the percentage of the air that passed over the ether. Several inventors based new inhalers on this, while the original continued to be manufactured as late as the beginning of WWII.Metal domed chamber with a bulb attachment on an elbow joint for rebreather bag. There is also a connector for a facemask, but no facemask.White printing on blue sticker: O.2.2. •Engraved on dome: Clover's Inhaler / 1877.joseph clover, portable regulating ether inhaler

Dr. Joseph Clover (1825-1882), an English physician, first described his Portable Regulating Ether Inhaler on Jan. 20, 1877. Clover was an especially sought after anesthesiologist and early pioneer in the specialty. This was the best-known of many inhalers that Clover designed. The dome-shaped reservoir was turned to points on a control dial to gradually increase or decrease the percentage of the air that passed over the ether. Several inventors based new inhalers on this, while the original continued to be manufactured as late as the beginning of WWII. This modified version differs from the original Clover inhaler as it has a glass dome chamber at the top allowing the level of ether to be monitored.Metal based chamber with glass dome top. There is a metal connection point at the top of the glass dome for a rebreather bag, with a whistle tip connection point at the base of the chamber for a facemask. There is no rebreather bag or facemask. There is a black plastic stopper to the side of the chamber, with a glass bulb with a metal wire cage covering.joseph clover, lambert buck, closed administration

Colour slide mounted in white cardboard slide case. Image depicts Clover Inhaler and rebreather bag against a green background.Handwritten in pencil: EMBLEY'S / 9448clover inhaler, anaesthesia, anaesthetic, ether, inhaler, medical history, anaesthetic history

Colour slide mounted in white slide case. Image depicts Clover Inhaler with cloth rebreather bag and leather facemask attachedHandwritten in pencil: EMBLEY'S / 9448clover inhaler, inhaler, ether, anaesthesia, medical history, anaesthetic history

Colour slide mounted in white cardboard slide case. Image depicts modified Clover Inhaler with glass chamber, cloth rebreather bag and metal facemask. Handwritten in pencil: EMBLEY'S / 9448clover, joseph, inhaler, ether, chloroform

Colour slide mounted in white slide case. Image depicts modified Clover Inhaler with glass chamber, cloth rebreather bag and metal facemask against a green background.Handwritten in pencil: EMBLEY'S / 9448clover inhaler, ether, anaesthesia, anaesthetic, anaesthetic history, medical history

Sir Frederick William Hewitt (1857-1916) wrote one of the earliest comprehensive textbooks on anaesthesia, and designed several pieces of anaesthetic equipment. In 1901, he described his wide-bore ether inhaler, a modification of the Clover Ether Inhaler. Unlike the Clover, it can be refilled with ether while still in use, and the mask is screwed into place so that it "cannot be unexpectedly detached." This version is a modified Hewitt's Inhaler which has a narrower 'ways' than the original Hewitt's, and no water compartment. Additionally, one side of the bowl is made of glass which enabled the person administering anaesthesia to see the level remaining in the bowl. Bowl shaped inhaler with a glass bowl base and metal dome top with a connector which appears to be for a rebreather bag. There is a metal switch at the base of the glass bowl to alter or regulate the flow.Stamped into central tube: COXETER LONDON Stamped into side of metal dome: 6460hewitt, wide-bore, clover, ether, anaesthesia, anesthesiology, anaesthesiology

Dr. Joseph Clover (1825-1882), an English physician, first described his Portable Regulating Ether Inhaler on Jan. 20, 1877. Clover was an especially sought after anesthesiologist and early pioneer in the specialty. This was the best-known of many inhalers that Clover designed. The dome-shaped reservoir was turned to points on a control dial to gradually increase or decrease the percentage of the air that passed over the ether. Several inventors based new inhalers on this, while the original continued to be manufactured as late as the beginning of WWIIMetal based inhaler with glass dome lid. From the glass dome an elbow joint leads to a bulb for a rebreather bag [no bag]. There is a cork sealing an opening at the rear of the metal base and a blue sticker adhered.Printed in white on blue sticker: O.2.10 Manufacturer's logo moulded into metal insertjoseph clover, portable regulating ether inhaler

The item was collected by Dr Geoffrey Kaye from a Vichy French military hospital during World war II.The inhaler comprises a black rubber face mask that connects to a metal circular chamber from which two white rubber valves are used to administer the anaesthetic agent. The ethyl chloride vials are labelled 'Kelene', a brand name. A waxed paper rebreather bag is attached to this metal chamer. mask, gas, anaesthesia, rebreather bag, world war ii, dr geoffrey kaye, ethyl chloride, kelene, french, vichy

The De Ford Inhaler was introduced in 1913 and was designed to allow anaesthesia to continue through the nose while dental surgery was happening.This inhaler is composed of metal and rubber. The oral mask and rubber covered nasal mask are connected to a curved rubber covered support that was placed on the patient's forehead to hold the inhaler in place. The gas was administered via a long tube; the terminus designed to allow for the placement of a vial containing the anaesthetic drug and a rebreather bag mount. Inscribed on the back of the mouth inhaler: 'Dr De Ford's Universal Inhaler for Somniform Nitrous Oxide etc. E. De Trey & Sons Phila. PA U.S. Pat. Pending.'anesthesia, dentistry, somniform, surgery, medical instrument, de ford, 1913, e de trey and sons, vial, rebreathr bag mount, inhaler

Sectioned by Dr. Geoffrey Kaye.A metal inhaler which has been sectioned to reveal the interior, painted in red and blue to indicate direction of air flow. The large, bowl-like opening with metal gauze for attachment of a rebreather bag has been painted red, and the metal mask at the other end has been painted brown. The mask and bag mount meet at a 90-degree angle. inhaler, somnoform, anaesthesia

The Bruck Inhaler is a modification of the Clover Inhaler, designed by Lambert Bruck. Bruck added a glass dome which enabled the level of ether to be monitored during administration. This was a revolutionary change as it removed guess work from the process.The Bruck Inhaler is a historically, aesthetically and scientifically significant piece. The basic design is based on the Clover Inhaler, but with a rounded bottom. The idea of a glass viewing window was possibly inspired by Wilson-Smith Inhaler. The Bruck Inhaler is historically significant as it is the first inhaler to be made with a completely clear lower glass section. This improved the usability for the ether administrator, and eliminated much of the guesswork associated with dosage and ether levels, which in turn improved the patient experience. This piece provides a strong local link to both anaesthetic and general medical practice at the turn of the century. The design is credited to Ludwig Bruck of Sydney, and was presumably manufactured in the same area. Bruck, as the attributed designer, holds much relevance to the significance of the object, as connected with him is much historical information about the social context of medical practice. Ludwig Bruck was a prominent figure in the medical industry. He started his medical career in Sydney as a Medical Transfer Agent, and later owned a shop at 16 Castlereagh Street, Sydney. This business is listed in the 1903 Register of Firms as a Medical Agent and Importer of Medical Instruments and Books. Bruck was vocal as a journalist and published analyses of medical statistics, as well as the well known Australasian Medical Dictionary and Handbook, which included the “List of Unregistered Medical Practitioners”. Ludwig Bruck was an immigrant. He was of German descent, which placed him in a precarious position within Sydney society during the turn of century. Bruck conducted several public conversations with prominent members of the Australian Natives Association through the Sunday News in regards to his disagreement of the employment of medical practitioners by the ANA specifically to corroborate their health insurance policies. He was also a stalwart supporter of the Australian arm of the British Medical Association, being the publisher of the first and subsequent editions of The Australian Medical Gazette. Bruck chose to end his life with a combination of poison and chloroform on 14 August 1915, after being accused of trading with the enemy during World War One. His suicide note stated his horror at leaving his business partner to deal with the tarring of his reputation as the reason for his decision. The Bruck Inhaler has aesthetic significance as it is a beautiful example of turn of the century surgical design and craftsmanship. Aseptic methods of surgery were well known by 1909, and the aesthetic design of the Bruck Inhaler conformed to these principles. The ability for the surgeon to unscrew, clean and sterilize each part of the Inhaler contributes to the streamlined design of the piece. The Buck Inhaler holds scientific significance. There is the capacity for further research to be undertaken on the object. Geoffrey Kaye often collected multiple examples of equipment, usually one for reverse engineering and another for teaching. There are currently two examples of the Bruck Inhaler in the collection, presenting an opportunity for further technical research on the object. The inhaler is oval shaped with one half made of glass to allow observation of the ether level. A vertical cross tube, 22mm in diameter passes between the face-piece and the bag [missing]. There is a stopcock for admission of oxygen or nitrous oxide opposite the bag attachment. There is a central tube, 28mm in diameter, with controllable ports on either side. There is also a tear-drop shaped fask mask.Hand engraved on side of base: L. Bruck / Sydneyclover, joseph, bruck, lambert, inhaler, rebreather, nitrous oxide, oxygen, williams, probyn

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

The Bruck Inhaler is a modification of the Clover Inhaler, designed by Lambert Bruck. Bruck added a glass dome which enabled the level of ether to be monitored during administration. This was a revolutionary change as it removed guess work from the process.The inhaler is oval shaped with two halves. One half should be made of glass [missing] to allow observation of the ether level. A vertical cross tube, 22mm in diameter passes between the face-piece and the bag [broken]. There is a stopcock for admission of oxygen or nitrous oxide opposite the bag attachment. There is a central tube, 28mm in diameter, with controllable ports on either side.The Bruck Inhaler is a modification of the Clover Inhaler, designed by Ludwig Bruck. Bruck added a glass dome which enabled the level of ether to be monitored during administration. This was a revolutionary change as it removed guess work from the process.joseph clover, lambert bruck, inhaler, rebreather, nitrous oxide, oxygen, probyn williams, hewitt

A Weller-Ash nitrous oxide apparatus that has been sectioned, complete with a brown fabric Cattlin's rebreather bag, stopcock, rubber tubing, and celluloid mask, on an iron stand that has been decorated with a natural, gold-coloured leaf motif. The base of the stand is black, and has a brown foot pedal which controlled gas flow to fill the bag. Much of the stand and the dials on either side are a brassy gold colour.nitrous oxide, rebreathing, anaesthesia, dentistry, surgery

This vaporiser is enclosed in a portable black cylindrical bakelite carry case with moulded handle, woven fabric strap and single steel latch. The item comprises a three-chambered vaporiser, an assortment of attachments including black ribbed rubber tubing, light brown rubber rebreather bag, facemask, black rubber mask harness, Connell pharyngeal airway with connector, an attachment for an endotracheal or nasal tube, as well as spare thermometer and other parts.Stencilled in white paint on the outside top lid is 'THIS SIDE UP / WITH CARE / SEE INSTRUCTIONS / INSIDE LID'. Serial number is inscribed on metal plate inside the lid and printed in white on the inside lid is 'IMPORTANT / The Oxford Vaporiser is a scientific apparatus'vaporiser, oxford, anaesthetic, portable, bakelite, connell pharyngeal airway, heated vapor, endotracheal, nasal, rebreather bag, thermometer, facemask

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 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

This is a modified version of the original Clover inhaler. Joseph Thomas Clover preferred this modified version over his later, portable regulating ether inhaler.This modified Clover's ether and chloroform inhaler is composed of metal and is cylindrical in shape. There is a gas distribution control key on the top and a metal hook enables the operator to hang the vaporiser from a strap around his/her neck. Stamped on top tap: COEXETER LONDONjoseph thomas clover, inhaler, ether, anaesthetic, portable, nitrous oxide, modified, gas, coexeter london, chloroform, rebreather bag, face mask