IMPROVEMENTS IN SYRINGES FOR HYPODERMIC INJECTIONS
Year: 1887

page_text: Date of Application, 12th Oct., 1887
Complete Specification Left, 10th July, 1888
Complete Specification Accepted, 10th Aug., 1888
1, WILLIAM WILEY of 36 Lancaster Street Birmingham, Warwickshire, Gentleman,
do hereby declare the nature of my invention for IMPROVEMENTS IN SYRINGES FOR
HYPODERMIC INJECTIONS to be as follows:-
My improvement consists in making Syringes for Hypodermic injection entirely
of metal the object being to obviate the use of leather or any other material of a
similar nature which is liable to shrink, and also to obviate the use of a graduated
glass tube; the advantages of my invention being cheapness, durability, and
portability.
My improved syringe consists of three pieces, viz.: 1. an outer tube with hollow
steel injecting needle attached to it at lower end. 2. an inner tube or piston closed. at
its lower end and provided with a moveable cap at the other end, and 3. a point or
needle protecting tube made to fit over the lower end of the outer tube and provided
with a suitable stop, to prevent contact with the point of the needle; this said pro-
tecting tube is also intended to be used as a boiler to heat the solution and dissolve the
drug used by aid of a match, lighted candle, or other flame.
It is intended to use the compressed pellets or tabloids with this, syringe, which
contain a fixed quantity of the required drug; thus rendering a graduated syringe
quite unnecessary.
The interior of the inner tube or piston is intended as.a receptacle for storing a
supply of the said pellets the tube being provided with a moveable top or cap, the
lower part of the inner tube or piston may be fitted with springs to press against the
outer tube to ensure a more perfect fit.
Dd this Eleventh day of October. 1887

page_text: COMPLETE SPECIFICATION.
Improvements in Syringes for Hypodermic Injections.
1, WILLIAM WILEY of 36 Lancaster Street, Birmingham, Warwickshire, Gentleman,
do hereby declare the nature of my invention for IMPROVEMENTS IN SYRINGES FOR
HYPODERMIO INJECTION and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
My improvement consists in making Syringes for Hypodermic injection entirely of
metal the object being to obviate the use-of-leather or any other material of a similar
nature which is liable to shrink, and also to obviate the use of a graduated glass tube;
the advantages of my invention being cheapness, durability, and portability.
My improved syringe consists of three pieces viz.:-1. an outer tube with hollow
steel injecting needle attached to it at lower end. 2. an inner tube or piston closed
at its lower end and provided with a moveable cap at the other end, and 3. a point or
needle protecting tube made to fit over the lower end of the outer tube and provided
with a suitable stop, to prevent contact with the point of the needle: this said pro-
tecting tube is also intended to be used as a boiler to heat the solution and dissolve
the drug used by aid of a match, lighted candle, or other flame.
It is intended to use the compressed pellets or tabloids with this syringe, which
contain a fixed quantity of the required drug thus rendering a graduated syringe quite
unnecessary.
The interior of the inner tube or piston is intended as a receptacle for storing a
supply of the said pellets the tube being provided with a moveable top, or cap, the
lower part of the inner tube or piston may be fitted with springs to press against the
outer tube to ensure a more perfect fit.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
The contrivance of making syringes for hypodermic injection to consist entirely
of metal substantially in the manner hereinbefore described.