Improvements in connection with India Rubber Solution Injectors.
Year: 1894

page_text: Date of Application, 5th Mar., 1894
Complete Specification Left, 5th Dec., 1894-Accepted, 5th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in connection with India Rubber Solution Injectors.
We, WILLIAM BOWN, 308 Summer Lane, Birmingham in the County of
Warwick, Manufacturer and GEORGE CAPEWELL, 114 Upper Thomas Street,
Aston juxta Birmingham aforesaid, Machinist do hereby declare the nature of this
invention to be as follows:-
This invention has reference to injectors for injecting india rubber solution used
in repairing pneumatic tyres and other like articles, and our improvements consist
in forming a suitable case or receptacle for containing the solution and inserting or
placing loosely therein a plunger or ejector for forcing the solution out of the said
case or receptacle. For the purpose of moving the plunger or ejector up and
down we insert either a right or left hand screwed pin or equivalent through the centre
of the said plunger or ejector and provide the top of the said screwed pin with a
collar and plain bearing part, which said plain bearing part is allowed to work
freely in a hole or bearing formed in the centre of the cap or cover of the case or
receptacle. Fastened to that part of the screwed pin which protrudes through the
hole in the said cap or cover is a knob or other suitable means for turning the said
screwed pin, and it will be easily understood that when the said knob or equivalent
is turned the plunger or ejector will traverse up or down the screwed pin by which
means the solution is ejected out of the case or receptacle.
In order to prevent the plunger or ejector from revolving or turning round inside
the case or receptacle when operating the same we provide the said plunger or
ejector with a spring or its equivalent which presses against the inner sides of the
said case or receptacle, or we may form one or more ridges or projections on the
inner surface of the case or receptacle, or form the said case or receptacle in any
desired shape and make the plunger or ejector to correspond.
Dated this 3rd day of March 1894.
WILLIAM BOWN.
GEORGE CAPEWELL.
Improvements in connection with India Rubber Solution Injectors.
We, WILLIAM BOWN, 308 Summer Lane, Birmingham in the County of
Warwick, Manufacturer and GEORGE CAPEWELL, -114 Upper Thomas Street,
Aston juxta Birmingham. aforesaid, Machinist, 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 has reference to injectors for injecting india rubber solution used
in repairing pneumatic tyres and other like articles.
In order that our invention may be clearly understood we have annexed the
accompanying sheet of drawings illustrative of same.
A is the case or receptacle for containing the solution and inserted or placed
loosely therein is the plunger or ejector B for forcing the solution out of the said
[Price 8d.1

page_text: ⚫case A.
In order to enable the said plunger or ejector B to be moved up and
down we insert either a right or left hand screwed pin C or equivalent through the
centre of the plunger or ejector B and provide the top of the said screwed pin C
with the shoulder a and plain bearing part b, which said plain bearing part 6 is
allowed to work freely in the hole c formed in the centre of the cap or cover d of
the case A. Fastened to the end of the screwed pin C which protrudes through
the hole c in the said cap d is a knob e or equivalent for turning the said screwed
pin C when ejecting the solution.
The cap D is provided for the purpose of protecting the point E and also for
preventing the solution from coming out when the ejector is not in use.
It will be easily understood that when the knob e is turned by the operator in
the direction of the arrow the plunger or ejector B will traverse down the screwed
pin C thereby ejecting the solution.
Fig. 2 shews another method of carrying our invention into practice, in this case
the screwed pin C is enclosed in the short piece of tubing f which is connected to
the plunger or ejector B and the washer g, the said plunger or ejector B, tube f
and washer 9 move bodily down the said screwed pin C when ejecting the solution
and the whole is enclosed in the case or receptacle A.
For the purpose of preventing the plunger or ejector B from revolving or turning
round inside the case A when traversing up or down the screwed pin C we form
the ridge or projection on the inner side of the said case A, as shewn at Fig. 3,
which takes into a corresponding indentation formed on the edge of the said
plunger or ejector B, or we may as shewn at Fig. 2 form a projection on the
washer 9 which works up and down in the slot j formed in the top end of the
-case A.
Or we may employ a spring or any other suitable means for the same
.purpose.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we would have it
-understood that we do not confine ourselves to the precise details as herein shewn
and described as they may be varied without departing from the spirit of our
invention, but what we wish to claim is :-
Firstly. A plunger or ejector which traverses up or down a, screwed pin or
-equivalent for the purpose substantially as herein shewn and described with reference
to Figs. 1 and 2.
Secondly. The means substantially as herein shewn and described for ejecting
.rubber solution or other like substance.
Dated this 4th day of December 1894.
WILLIAM BOWN.
GEORGE CAPEWELL.