Improvements in Syringes.
Year: 1888

page_text: Date of Application, 1st Aug., 1888
- Complete Specification Left, 1st May, 1889-Accepted, 22nd June, 1889
PROVISIONAL SPECIFICATION.
Improvements in Syringes.
I EVAN GRIFFITHS HUGHES of Victoria Street and Cateaton Street Manchester
in the county of Lancaster Operative Chemist, do hereby declare the nature of this
invention to be as follows:—
My invention relates to syringes and consists in arrangements by which I render
such syringes more convenient for use than they have hitherto been and by which
I render such syringes especially adapted for applying insecticides to trees and plants.
I provide each syringe with an air-chamber within which I place the cylinder of
the syringe which cylinder is closed at its inner end and in which cylinder is the
piston of the syringe. The piston is connected to a piston-rod which passes through-
a stuffing-box at the end of the air-chamber. The cylinder before mentioned is
provided with a tube communicating with a box or casing secured to the air-chamber
previously referred to. To the said box or casing is secured by means of a suitable
union a flexible tube through which tube water or other liquid passes to the syringe.
The said tube is provided with a grid or strainer to prevent substances which night.
obstruct the syringe from being drawn into the syringe. I provide the end of the
tube leading into the box or casing above mentioned with a valve or clack which.
allows water or other liquid to flow into the box or casing but prevents it from
returning therefrom and 1 also provide a valve or clack which allows water or other
liquid to pass from the box or casing previously mentioned to the interior of the air-
chamber. Leading from the interior to the exterior of the air-chamber previously
mentioned is a delivery pipe or tube which pipe or tube is provided at its outer end
with a nozzle or jet through which water or liquid may be forced in the form a jet
or stream. Surrounding the jet or nozzle before inentioned is a cavity or recess over
:
which at times may be secured by means of screw-threads, a cap through which are
formed several small holes or openings passing through a concave surface formed on.
the exterior of the cap. By forming the holes or openings aforesaid through a.
concave surface as above described 1 am enabled to deliver the water or other liquid
so that it will assume the form of a spray or become finely divided. I cause that part
of the delivery pipe or tube which is within the air-chamber to terminate about mid-.
way in the length of the air chamber and near to one side of such air-chamber,
thereby ensuring the end of the said part of the delivery pipe or tube being sub-
merged in the water or liquid contained in the air-chamber so that a constant flow
of water or other liquid will be ensured during the time the piston of the syringe is
being worked whether the delivery end of the syringe be pointed in an upward or in
a downward direction.
0
ст 1
COMPLETE SPECIFICATION.
Improvements in Syringes.
1, EVAN GRIFFITHS HUGHES of Victoria Street and Cateaton Street, Manchester
in the county of Lancaster, Operative Chemist, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
My invention relates to syringes and consists in arrangements by which I render.
such syringes more convenient for use than they have hitherto been and by which
I render such syringes especially adapted for applying insecticides to trees.
and plento

page_text: I provide each syringe with an air-chamber within which I place the cylinder of
the syringe which cylinder is, closed at its inner end and in which cylinder is the
piston of the syringe. The piston is connected to a piston-rod which passes through
a stuffing-box at the end of the air-chamber. The cylinder before mentioned is pro-
vided with a tube communicating with a box or casing secured to the air-chamber
previously referred to. To the said box or casing is secured by means of a suitable
union a flexible tube through which tube, water or other liquid passes to the syringe.
The said tube is provided with a grid or strainer to prevent substances which might
obstruct the syringe from being drawn into the syringe. I provide the end of the
tube leading into the box or casing above mentioned with a valve or clack which
allows water or other liquid to flow into the box or casing but prevents it from
returning therefrom and I also provide a valve or clack which allows water or other
liquid to pass from the box or casing previously mentioned to the interior of the air-
chamber. Leading from the interior to the exterior of the air-chamber previously
I mentioned is a delivery pipe or tube which pipe or tube is provided at its outer end
with a nozzle or jet through which water or other liquid may be forced in the form
of a jet or stream. Surrounding the jet or nozzle before mentioned is a cavity or
recess over which at times may be secured by means of screw-threads, a cap, through
which are formed several small holes or openings passing through a concave-surface
formed on the exterior of the cap. By forming the holes or openings aforesaid
through a concave surface as above described I am enabled to deliver the water or
other liquid so that it will assume the form of a spray or become finely divided.
I cause that part of the delivery pipe or tube which is within the air-chamber to
terminate about midway in the length of the air-chamber and near to one side of such
air-chamber, thereby ensuring the end of the said part of the delivery pipe or tube
being submerged in the water or other liquid contained in the air-chamber so that a
constant flow of water or other liquid will be ensured during the time the piston of
the syringe is being worked whether the delivery end of the syringe be pointed or
directed in an upward or in a downward direction.
'
Figs 1, 2 and 3 of the accompanying drawing show one method of carrying-my-
invention into effect. Fig. 1 is a longitudinal section of a syringe constructed.
according to my invention. Fig. 2 is a cross-section taken on the plane indicated by
the line ZZ of Fig. 1. and looking in a direction towards the "handle end" of the
syringe and Fig. 3 is a cross-section taken on the ZZ of Fig. 1, and looking in a
direction towards the "outlet end" of the syringe. The same letters of reference are
applied to corresponding parts in all of the figures.
a is a metal tube the interior of which forms an air-chamber A. Within the
tube a I place the cylinder 6 of the syringe.
To the tube a I secure a cap c to which is secured the cylinder b. Secured to the
cylinder is an elbow-socket & provided with a tube e which is secured to the tube a.
I provide the cylinder b with a piston b' to which is secured a piston rod b³ and I also
provide the cylinder with a cap which is secured to the said cylinder b by means
of screw-threads. I provide the cap with a washer g of leather or other suitable
material so that the cap may constitute a stuffing-box. The piston rod I provide
with a handle by means of which the piston 6 may be worked. Secured to the
tube a is a box or casing h. The box or casing I form with a tube h¹ to which
I secure one end of a flexible tube through which tube j water or other liquid
passes to the syringe. The tube j I provide with a grid or strainer to prevent
substances which might obstruct the syringe from being drawn into such syringe.
I provide the tube with a valve or clack k which allows water or other liquid
to flow into the box or casing but prevents it from returning therefrom into the
tube . I provide the tube a with a valve or clack which allows water or
other liquid to flow into the interior of the air-chamber A but prevents water or
other liquid from returning from such air-chamber A into the box or casing h. The
valve or clack is prevented from moving too far from the seating in conjunction
with which it is used by arriving against the outside of the cylinder b. The valve or
clack is prevented from moving too far from the seating in conjunction with which

page_text: it is used by arriving against the tube e and the portion of the seating which
projects outwardly from the tube a into the box or casing h. To the tube a I secure
a cap m. Leading from the interior of the air-chamber A is a delivery pipe or tube n
one end of which is secured to the cap m and leads to a jet or nozzle o secured to the
cap m by means of screw-threads.
Through the jet or nozzle o water or other liquid may be forced in the form of a
jet or stream. Formed around the jet or nozzle o is a groove, cavity, or recess P
over which at times when required may be secured by means of screw-threads, a
cap r through which are formed several small holes or openings s passing through a
concave surface formed on the exterior of the cap r. Fig. 3 is a view showing
the concave surface of the cap and the holes or openings s formed through such
cap r.
By forming the holes or openings through a concave surface such as r¹
1 am enabled to deliver the water or other liquid so that it will assume the form of
a spray or become finely divided. I cause the end n¹ of the delivery pipe or tube n
to terminate about midway in the length of the air-chamber A and near to one side
of such air-chamber A thereby ensuring the end n¹ of the delivery pipe or tube n
being submerged in the water or other liquid contained in the air-chamber A so that
a constant flow of water or other liquid will be ensured during the time the piston b¹
of the syringe is being worked, whether the delivery end of the syringe be pointed in
an upward or downward direction. Across the interior of the air-chamber A I fix a
partition t such partition t enabling the syringe to be "practically" emptied of water
or other liquid when desired.
Syringes constructed according to my invention are more convenient in use than
syringes as hitherto constructed and syringes constructed according to my invention
are especially adapted for applying insecticides to trees and plants.
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 provided with a cap such as r, groove, cavity or recess such as p
and jet or nozzle such as o all employed and arranged substantially as hereinbefore
described in reference to and indicated in and by the accompanying drawing.
2. In a syringe a cap r such as is herein before described formed with a concave
surface such as and provided with holes or openings such as s, for the purpose
hereinbefore described.
3. In a syringe a delivery pipe or tube such as 'n so arranged that the portion of
such delivery pipe or tube which is within the air-chamber of the syringe shall
terminate about midway in the length of the air-chamber and near to one side of such
air-chamber substantially as and for the purposes hereinbefore described in reference
to and indicated in and by the accompanying drawing.
4. A syringe provided with a cap such as r, groove, cavity or recess such as p,
jet or nozzle such as o and delivery pipe or tube such as n all employed and arranged
substantially as herein before described in reference to and indicated in and by the
accompanying drawing.
5. A syringe provided with a cap such as r, groove, cavity, or recess such as p,
jet or nozzle such as o, delivery pipe or tube such as n, cylinder such as b, tube such
as a, box or casing such as hand valves or clacks such as k and l, all employed and
arranged substantially as herein before described in reference to and indicated in and
by the accompanying drawing.
Dated this Thirtieth day of Anni 1000
.