US788935A - Syringe. - Google Patents

Description

No. 788,935. I PATENTED MAY 2, 1905.

H. 0. MOKINLEY & A. DIEGEL. 3

SYRINGE.

APPLICATION FILED MAY 23, 1904.

UN TED STATES Patented May 2, 1905.-

HENRY C. MCKINLEY AND ALBERT DIEGEL, OF DETROIT, MICHIGAN.

SYRINGE.

SPECIFICATION forming part of Letters Patent No. 788,935, dated May 2, 1905.

Application filed May 23, 1904. Serial No. 209,183.

To all whom it may concern:

Be it known that we, HENRY C. MQKINLEY and ALBERT DIEGEL, citizens of the United States, residing at Detroit, county of WVayne, State of Michigan, have invented a certain new and useful Improvement in Syringes; and we declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to syringes, and has for its object an improved portable syringe.

In the drawings, Figure l is an elevation of the syringe closed and covered. Fig. 2 is an elevation of a syringe with the cap removed and the body parts extended. Fig. 3

is a section on a line 3 3 of Fig. 2 and horizontal to the view shown in Fig. 2.

The syringe consists of a barrel 2, which slides in a case 3, that contains the piston-stem 4. Each side of the case 3 is provided with a long slot 31 (and 32), through which extends the stem of a globular-headed screw. The two screws 34 and 35 form the handles by means of which the barrel 2 is drawn back into or projected from the case 3. The body of each screw extends into the head of the barrel 2. The piston-stem 4 is hollow and extends into the barrel 2 and carries a piston 41 at the end thereof. The end 42 of the piston-stem is secured to or made integral with the end of the case 3 and is closed by a screw-plug 43. The nozzle end of the barrel can be drawn entirely into the case 3 and then covered by a cap 5, which is secured to the case 3 by screw threads. The entire structure in its collapsed or closed form is an ovoid body without projections except the two small knobs 34 and 35 and the head of the screw 43.

The nozzle 6 is detachable from the body part of the barrel 2 and is attached thereto by screwthreads 21 engaging in screw-threads 22 on the inside of the barrel at the terminal.

The hollow stem 4 serves as a receptacle or bottle tocontain soluble medicine, which is removed therefrom and placed in the barrel of the syringe and dissolved by water or any other proper vehicle.

What we claim is 1. In a syringe, in combination with a casing provided with longitudinal slots, a syringebarrel adapted to be drawn thereinto, a piston-stem extending from the closed end of said casing toward the other end thereof, said stem being stationary and central with respect thereto, a piston terminating the stem and located within the barrel of the syringe, and knobs projecting from said syringe-barrel through said slots, substantially as described;

2. In a syringe, in combination with an outer casing pierced with a plurality of slots running lengthwise thereof, a hollow piston-stem extending along the central axis of said casing and structurally integral therewith, a syringe-barrel adapted to be drawn into said casing, a detachable nozzle at one end thereof, a piston terminating the stem and located within the barrel of the syringe, and actuating-knobs projecting from the syringe-barrel through said slots, substantially as described.

In testimony whereof we sign this specification in the presence of two witnesses.

HENRY G. MOKINLEY. ALBERT DIEGEL.

Witnesses:

MAY E. Ko'r'r, CHARLES F. BURTON.

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