An Improved Syringe for Horticultural and other Purposes.
Year: 1899

page_text: Date of Application, 9th Jan., 1899
PROVISIONAL SPECIFICATION.
An Improved Syringe for Horticultural and other Purposes.
I, GEORGE FREDERICK STRAWSON, of Horley, Surrey, Manufacturer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to an improved syringe for horticultural and other pur-
poses and it consists of a syringe so constructed as to be capable of producing
a spray for the treatment of plants and the like with fungicidal, fertilising or other
liquids, as may be required.
The syringe is also provided with a means for the discharge of any liquid
which may reach the upper side of the plunger and which would otherwise be
discharged through the orifice provided in the end cap by the act of drawing up
the plunger for the purpose of refilling the body of the syringe with liquid.
In carrying the invention into effect I construct a cylindrical barrel or body
of any suitable metal and attach at one end in any convenient manner a cap having
a central opening for the passage therethrough of the plunger rod; a suitable
gland and stuffing box may be also provided.
At or near the cap aforesaid I form a hole in the barrel of the syringe and secure
upon the outside a piece of tube, one end of which is open and the other is
sealed and an opening formed in the side thereof near the end to correspond with
the opening in the barrel so that any liquid that may find its way to the upper
side of the plunger will, upon the upward movement thereof, be discharged
through the tube and fall into the receptacle from which the liquid is being
drawn, thus preventing the said liquid being squirted over the person using
the syringe. The length of the tube is such that the hand grasping the barrel
of the syringe will not interfere with the discharge of the liquid.
At the lower end of the barrel I provide a screw thread for the attachment
thereto of a cap having a series of perforations formed therein upon say one
half of its area and through which the liquid is drawn when the lower end of
the syringe is inserted therein, and the plunger raised. Upon the inside of the
cap I place a valve which may consist of a disc of rubber of such dimensions as to
cover all the perforations and secured by a screw or other convenient means
to the said cap. Also secured to the cap in any suitable manner is a discharge
nozzle consisting of a ball having a central bore communicating with the interior
of the barrel through which passes at right angles a plug secured by a screw and
having at its outer end a second ball provided with a small screwed portion for a
cap in which is a small opening for the discharge of the liquid. The passage in
the plug is so arranged that the nozzle may be rotated through an angle of rather
more than 180 degrees and still remain open for the discharge or it may be turned
beyond this and the passage closed. The plunger and rod may be of any well
known form and a handle is secured to the outer end of the rod for the convenient
manipulation thereof.
Tlated this 6th day of January 1899

page_text: An Improved Syringe for Horticultural and other Purposes.
I, GEORGE FREDERICK STRAWSON, of Horley, Surrey, Manufacturer, 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:-
This invention relates to an improved syringe for horticultural and other
purposes and it has for its object to construct a syringe for producing a spray
for the treatment of plants and the like with fungicidal, fertilising and other
liquids as may be required. The syringe is also provided with a means for the
discharge of any liquid which may reach the upper side of the plunger and which
would otherwise be discharged through the orifice provided in the end cap by the
act of drawing up the plunger for the purpose of refilling the body of the
springe with liquid.
In carrying the invention into effect I construct a cylindrical barrel or body
of any suitable metal and attach at one end in any convenient manner a cap
having a central orifice for the passage therethrough of the plunger rod; a suitable
gland and stuffing box are also provided. At or near the cap aforesaid I form a
hole in the barrel of the syringe and secure upon the outside a tube or casing, one
end of which is open and the other is sealed except for the hole or opening afore-
said formed in the barrel of the syringe.
At the lower end of the barrel I provide a cap, attached thereto by a screw
thread, in which are formed two openings forming respectively the feed and
discharge for the liquid, a suitable connection being formed for the attachment
of a length of rubber or other hose through which the liquid may be drawn, and
a discharge nozzle is also provided consisting of a ball having a central bore
communicating with the interior of the barrel through which passes at right
angles thereto a plug secured by a screw or the like, and having at its outer
end a second ball provided with a small screwed portion for a cap in which is
a small opening for the discharge of the liquid. The passage in the plug is so
arranged that the nozzle may be rotated through an angle of rather more than
180 degrees and still remain open for the discharge or it may be turned beyond
this and the passage closed.
To prevent the return of the liquid through the feed opening upon the down-
ward movement of the plunger provide a simple valve consisting of a small
disc of rubber or other suitable material retained in position by means of a screw
passing therethrough and into the cap.
In order that the invention may be the better understood drawings are appended
in which
Fig. 1, is an elevational view of the syringe.
Fig. 2, is a longitudinal section.
Fig. 3, is a transverse section, and
Fig. 4, is a plan of the lower cap showing the general arrangement of the valve
feed and discharge orifices.
a is the body consisting of a cylindrical metal barrel to the top of which is
secured by screw threads the cap 6 having a central opening and provided with
a stuffing box c and gland d through which passes a plunger rod e terminating at
its upper end with a handle f and having at its lower end a plunger preferably
formed of two inverted cup leathers g g', secured to the said rod in any well known
or convenient manner. At or near the top of the barrel a is pierced an opening h
communicating with the semicircular casing i secured in any convenient manner
upon the outside of the barrel and closed at the upper end by the collar ; formed

page_text: upon the said barrel, the lower end of the casing i is left open to permit of the
ready discharge of any liquid which might find its way to the upper side of the
plunger and which otherwise would be forced through the opening for the plunger
rod.
Secured by screw threads to the lower end of the barrel a is a cap k provided
with two orifices 1 m, one, I being the feed or supply orifice and provided with
a nozzle for attachment thereto of a rubber or other hose through which liquid is
drawn into the body of the syringe. To prevent the return of the liquid when the
plunger is depressed a valve n is provided consisting of a disc of rubber or the
like secured by means of the screw o. A seating p may be provided consisting of a
short length of turned and bored tubing secured in any suitable manner within
the supply opening 7. Screwed to the cap k is a discharge nozzle q so constructed
as to be capable of being turned through an angle of about 190 degrees or turned
beyond that will close the orifice leading thereto and shut off the flow of the
liquid. As, however, the construction of such a nozzle is known, it being described
in my prior Specification No. 28708 1897 it is not necessary to further describe
same. For convenience when in use I may provide a strap or band r which may
be passed around the operators shoulders and serve as a support for the syringe.
The action of the syringe is as follows:-
:-
The plunger being raised liquid is drawn into the barrel a through
the orifice 1 and upon the downward motion of the plunger the
valve closes and the contents of the barrel ч are expelled through
the opening m and finally issues in the form of spray from the
discharge nozzle. I may in some cases employ instead of the comparatively
large feed opening shown, a plate or disc of metal in which are formed a number
of holes which would be covered by the rubber disc aforesaid.
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:-
The improved syringe as and for the purposes herein specified and constructed
and operating substantially in the manner set forth and illustrated by the
appended drawings.
11
1009