Improvements in Syringes, Injectors or the like.
Year: 1899

page_text: Date of Application, 15th Sept., 1899-Accepted, 21st Oct., 1899
COMPLETE SPECIFICATION.
Improvements in Syringes, Injectors or the like.
I, JOHN HERBERT WALKER, of Mary Street West, Charters Towers, North
Queensland, Pianoforte Importer, &c., do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:—
This invention relates to an improved device for use as a hypodermic or other
syringe or injector or as an oil can, lubricator or the like.
According to the invention I construct my syringe, injector, lubricator or the
like of a cylinder to one end of which a suitable tube or nozzle is to be fitted
and which is provided with a piston or plunger having a rod which extends
through the other end of the said cylinder which is secured at an inclination
to a reservoir preferably of a conical shape in which case the said cylinder is
secured to the apex thereof. An orifice is made in the cylinder wall for placing
its interior into communication with the reservoir.
With this arrangement when the piston or plunger is pulled by means of the
rod into its outer position the orifice giving communication between the cylinder
and the reservoir is opened so that by inverting the device the liquid to be
injected or forced through the nozzle flows into the said cylinder in front of the
piston or plunger; on then pushing forward the piston or plunger the liquid
contents contained in the cylinder in front thereof are forced forward through
the outlet tube and the orifice is closed. When not employed the device can
stand upon the base of the conical reservoir.
To enable the invention to be fully understood I will describe it by reference
to the accompanying drawings, in which:
Figure 1 is a front elevation of a syringe or injector (without the tube) made
according to the invention:
Figure 2 is a vertical section thereof:
Figures 3 and 4 are views of a modified construction of device; and
Figures 5, 6 and 7 illustrate types of tubes which can be fitted to the device.
a is the cylinder, the said cylinder being formed at its upper end with an
internal screw-thread b by means of which a suitable tube can be fitted thereto,
such for example as the oil can tube shewn in Figure 5, a hypodermic injector
as shewn in Figure 6 or an ear tube such as is shewn in Figure 7.
c is the piston or plunger, the said piston or plunger being of any suitable
construction and advantageously somewhat longer than half the internal length
of the cylinder a; d is the plunger rod which passes through the lower cap of
the cylinder and is provided at its outer end with a knob or button e.
f is the reservoir which is here shewn of a conical shape, such that the device
when not in use can be stood upon the base thereof. The cylinder a is secured
to the apex of the said conical reservoir f by any suitable means either through
the medium of a connecting tube g, as illustrated in Figures 1 and 2, or directly,
as shewn in Figures 3 and 4. h is the orifice formed in the cylinder wall which
places the interior of the cylinder in communication with the reservoir f.
The device is employed as follows, that is to say, assuming the reservoir f

page_text: to be filled with the liquid, which is to be injected or pumped from the cylinder,
the piston or plunger is drawn down to the lower cap of the cylinder and the
device inverted so that liquid flows from the reservoir f into the front of the
said piston or plunger. The instrument is then placed in position and the
plunger c forced forward by means of the external button e so that the liquid
contents of the cylinder are forced through the tube screwed into the end thereof.
The device is then returned to its normal position and the plunger withdrawn.
Where it is desired to protect the contents of the reservoir against evaporation or
against the action of the atmosphere the plunger is then again pushed into its
uppermost position so as to close the orifice h.
Amongst the many uses to which my improved syringe, injector, lubricator
or the like can be put I may mention the following.
For the use of mechanics, engine drivers, etc., as an oil can the advantage
being that there is practically no waste of oil and the construction enabling oil
to be forced up or into remote portions of machinery without depending upon the
action of gravity.
For the use of station owners and cattlemen generally for the inoculation of
stock against tick fever, redwater, pleurisy and pneumonia.
For the subcutaneous injection of morphia into the body to relieve pain and
the subcutaneous injection of strychnine or other antidotes in treating for the
bites of venomous reptiles.
For the treatment of affections of the ear, nose, throat, eyes, etc.
The foregoing, however, are only instances of the uses to which the device
can be put as it is applicable generally to all purposes for which small syringes
are usually employed.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. A syringe, injector or the like comprising a cylinder having a plunger, the
said cylinder being secured at an inclination to a reservoir with which it is in
communication by an orifice, substantially as hereinbefore described.
2. A syringe, injector or the like comprising a cylinder having a plunger and
a conical reservoir to the upper part of which the said cylinder is secured at
an inclination and which is in communication with the said cylinder by an
orifice adapted to be closed by the piston or plunger when the latter is forced
forwards, substantially as herein before described.
3. The combination and arrangement of parts forming the improved syringes,
injectors, or the like herein before described and illustrated respectively in
Figures 1 and 2 and 3 and 4 of the accompanying drawings.
Dated the 15th day of September 1999.
LONNA
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.