Complete specification : an improved dry air inhaler and injector to enable the inhalation and injection of atmospheric air and gases heated to high temperatures by human beings and animals / Lewis Abraham Tallerman.

  • Tallerman, Lewis Abraham.
Date:
[1896]
Catalogue details

Licence: Public Domain Mark

Credit: Complete specification : an improved dry air inhaler and injector to enable the inhalation and injection of atmospheric air and gases heated to high temperatures by human beings and animals / Lewis Abraham Tallerman. Source: Wellcome Collection.

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    Tallerman's Improved Dry Air Inhaler and Injector. Volatilization and evaporation or vapourization of medicaments and other substances for inhalation or injection may also be carried out in the receiver which presents greater facilities for quickening both processes by reason of the greater cubic contents thereof permitting the exposure of a greater medicated surface to the action of greater and more direct dry heat and also by reason of the superior 5 outlets G. H. I. for ventilation and regulating the temperature by continuous or intermittent currents according as the said outlets may be opened or closed. At the top of the inner inhaling chamber viz., that section next to the receiver is a metal outlet tube Gf about 2 inches high having an outlet one inch in diameter which closed with a metal stopper or key this when opened in conjunction with a 10 similar tube on the bottom H of the receiver induces a continuous current for the purpose of ventilation evaporation and the replacement of air removed from the receiver during the process of inhaling and injection and a freer circulation of heated dry air from the receiver to the inhaling chambers is promoted. Two panels J one on each side of the receiver act as ventilators when required 15 and close by slides or doors. The outer inhaling chamber K has a thermometer L the bulb of which passes into the interior the scale showing on top indicates the temperature therein. When the apparatus is used as an inhaler an ordinary oral nasal or ora-nasal piece M or tube or cannula or other fitting suitable or convenient for the purpose ’20 is connected with the outer end of the inhaling chambers and the air or gas may be compressed when required by use of the pumping gear described hereafter for the purpose of injecting. A pressure gage N at the top of the receiver indicates the pressure within. The receiver may be heated by gas O oil spirit or electricity, preferably by 25 gas applied to the bottom thereof and the inside temperature is indicated by a thermometer P as in the inhaling chambers before described. To raise the temperature the valve-cap B and outlet tubes are closed and the gas is turned full on until the required temperature is registered. To lower the temperature the reverse of the foregoing operation is carried out, viz.,—the outlets 30 are partly or entirely opened as also the valve-cap and the gas turned down. If it be desired to maintain a certain temperature attention must be paid to the manipulation of the valve-cap and the opening and closing of the before mentioned outlets will be regulated in accordance with the movements registered by the thermometer. 35 When the apparatus is used as an injector for the valve-cap used for the inhaler is substituted a similar air tight copper cap Q having a small copper cylinder It open at both ends fitted in the centre on the inner side thereof so that when closed the small cylinder is in the interior of the receiver and projected towards the centre. A brass piston rod S of about three-quarters of an inch in 40 diameter passes from the outside through the centre of the cap into the small cylinder and at the end of the piston rod so passed through a disc of wood T or other suitable material is fixed. • The rod is then pushed forward thereby forcing the air out of the small cylinder into the receiver and consequently forcing almost as much heated air as was displaced from the cylinder through the funnel. The piston rod is then drawn back and the vacuum caused by this pumping operation is filled by air admitted from the outside into the receiver through one of the outlet tubes which admitted ■ air is at once heated by mixing with a large volume of hot air. I do not confine myself to this pumping gear but may substitute for it any 50 suitable ordinary pumping gear worked by a lever from the outside. To the outlet at the end of the inhaling chambers is fitted a tube pipe cannula rose or other fitting suitable for the purpose of injecting hot dry air and gases • medicated or non-medicated smoke and fumes the results of combustion volatilization or evaporation. 55, When used as an inhaler the patient is seated or lying and inspires through the oral or nasal or cra-nasal piece at the end of the outer inhaling chamber '