Exhibition of an improved apparatus for the therapeutic use of compressed and rarefied air : with remarks on the home-treatment of pulmonary affections / by Solomon Solis-Cohen.

  • Solis-Cohen, Solomon, 1857-1948.
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: Exhibition of an improved apparatus for the therapeutic use of compressed and rarefied air : with remarks on the home-treatment of pulmonary affections / by Solomon Solis-Cohen. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    Being placed on top of the air chamber in successive pairs (one on each side, to preserve balance), they bring the pressure up to any desired amount not exceeding 4- at- mosphere. Thus: Cylinder and bottom weights = 10 lbs. = + -h atmosphere. 24 lbs. (two small weights) additional = I2£ lbs. = + -gV atmosphere. 24 lbs. (two small weights) additional — IS lbs. = + -gV atmosphere. 31 lbs. (one small weight and one large weight) additional = 18f lbs. = + -h atmosphere. , (St ]bs. (one small weight and two large weights) additional =25 lbs. = + Tit atmosphere. The air cylinder is furnished with two goose-necks, one (8) for the attachment of the tube (6, V) from the bellows, conveying compressed air ; tbe other (9) for attachment of the tube (10, 11) connected with the stop cock (12, 13) and face-mask (14) or month-piece, through which the patient inhales. A perforation two inches in diameter is fitted with a screw cap carrying a hook on which a sponge may be placed, which is to be saturated with any volatile medicament (e. g., terebene) that may be desired. The cap likewise contains a smaller perforation, into which an air-gauge may be fitted. When the gauge is not in use this is closed with a rubber plug. Still another perforation in the top of the air chamber is fitted with a valve, which permits escape of air should too much be sentover from the bellows. This valve, which is superior to my own arrangement for the same purpose, is the ingenious device of Mr. F. Metzger, of this city, who now makes the apparatus in every respect according to my instructions, and who has devoted much time and care to the details of construction in order to secure both strength and lightness. The escape valve is composed of two flat plates of brass, tbe upper perforated, the lower unperforated. They are held in apposition by a spring, and when in apposition no air escapes. The lower plate carries a chain, thirty-five inches