Improvements in or connected with hypodermic syringes / [James Ernest Arnold].
- Arnold, James Ernest.
- Date:
- 1904
Licence: Public Domain Mark
Credit: Improvements in or connected with hypodermic syringes / [James Ernest Arnold]. Source: Wellcome Collection.
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![Arnold’s Improvements in or connected vnth Hypodermic Syringes, so that when the pin on the end cap has entered the inclined portion of the slot, the axial rotation of the tubular sleeve or of the cap 1 will tend to draw the two end caps on to the barrel. Having now particularly described and ascertained the nature of my said 5 invention and in what manner the same is to be performed I declare that what I claim is; — 1. In hypodermic syringes having a barrel and end caps; providing a tubular guard sleeve, generally having pierced or slotted walls, into which sleeve the syringe is passed with its nozzle cap in position, until the said nozzle cap is ]0 supported against the inturned or shouldered end of the sleeve, the piston cap being then connected to the other end of the guard sleeve by a readily detach¬ able connection such as a bayonet joint, whereby the barrel is protected and the caps supported and held substantially as set forth. 2. A hypodermic syringe having a barrel, a detachable nozzle cap at one j/j end, and a detachable cap at the other end through which the piston rod passes; in combination with a pierced or slotted sleeve, an inturned end or equivalent to the sleeve to support the nozzle caj3 when the syringe is inserted within the sleeve, and a bayonet joint connection between the piston cap and the end of the sleeve, constructed and arranged substantially as described with reference 20 to the accompanying drawings. Dated this 3rd day of September 1904. BREWER & SON, London and Leeds, Agents for the Applicant. Redhill: Printed for His Majesty’s Stationery Office, by Love & Malcoinson, Ltd.—1904.](https://iiif.wellcomecollection.org/image/b30740848_0003.jp2/full/800%2C/0/default.jpg)
