Specification of George Nye : apparatus for administering injections.

  • Nye, George.
Date:
1862
Catalogue details

Licence: Public Domain Mark

Credit: Specification of George Nye : apparatus for administering injections. Source: Wellcome Collection.

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    Nyes Improvements in Apparatus for Administering Injections. and at the other with the passage through the foot 0. 0 is a foot, screwed to the vessel L; it is formed tubular, or has a passage o through it open at bottom and communicating at top with the pipe N; P is a ball valve in the passage o; R is a ball valve for opening and closing 5 the eduction way. This valve, which, with its seat, is shewn apart in Figure 7, is fitted in a chamber Q, fixed within the pipe N, and the valve rests on a seat S screwed to the chamber Q, and having a passage s through it, which constitutes the thoroughfare between the valve chamber Q, and the passage o, when the valve R is raised, the valve chamber Q> being 10 open at bottom. T is a pipe, fixed transversely to the chamber Q, in which it opens at one end, and passing through the side of the chamber Q, and of the pipe N opens at its other end in the chamber L; U is the outlet pipe, for conveying the fluid from the chamber L into the person of the user or else¬ where, as required. When the apparatus is to be used the bottom of the foot 0 15 is inserted into the fluid to be injected ; and the ball or vessel M having been first compressed, and then allowed to expand back again, a vacuum will be pro¬ duced in the pipe N, through which pipe the fluid will rise into the vessel M, and on again compressing the latter the fluid will be forced back through the pipe N, lift the valve R, and pass through the chamber Q, and pipe T into 20 the vessel L, and thence through and out of the pipe U. By repeating the compression and releasing of the vessel M, the vessel L will be alternately filled with and emptied of liquid, which will be discharged through U in a continuous stream. Apparatus working according to this method of action have already been 25 constructed and known, but in such apparatus the valve that opened and closed the eduction way has been so fixed that it could not be reached and removed without taking the whole apparatus to pieces, whereas in my appa¬ ratus the valve R can easily be attained, removed, and replaced by unscrewing and detaching the foot 0, whereby the valve seat S will be exposed, and can 30 easily be attained and unscrewed to allow the valve R to be removed, and the apparatus to be purified. Having now described the nature of my said Invention and in what manner the same may be performed, I declare that what I claim is as follows:—• First, in respect of my first arrangement of apparatus I claim the employ- 35 ment of an india-rubber compressible vessel, fitted with air valves in combi¬ nation with a reservoir or holder for liquid, as herein-before described, so that by means of such india-rubber vessel the liquid may be discharged in a continuous stream.