An Improved Wrench.
Year: 1889

page_text: Date of Application, 7th Mar., 1880
Complete Specification Left, 5th Dec., 1889-Accepted, 11th Jan., 1890
PROVISIONAL SPECIFICATION.
An Improved Wrench.
I, JOHN BURTON BURWELL of 1 Havelock Road Hastings, Sussex, Gentleman,
do hereby declare the nature of this invention to be as follows
This Invention consists of two curved gripping pieces or jaws of metal binged
together at one end to form a sort of circle, the other ends are unattached. From each
of these pieces rises near the unattached ends a pin each of which works in a slot
whose longitudinal direction is oblique with a plate which partially covers over the
two first mentioned gripping pieces. Attached to the aforementioned plate is a
handle to act as a lever for moving this plate. I use my invention as follows. I
open the gripping pieces or jaws as wide as possible and place them over the article
to be grippel or unscrewed. I then turn the handle which moves the plate which
acts upon the pin on gripping pieces or jaws through the agency of the oblique
slots and thus the gripping jaws are forced together. channel or roughen the
interior surface of the aforementioned jaws to obtain a better hold on the article to be
gripped and unscrewed.
I intend this invention for use in screwing and unscrewing the screw stoppers of
Bottles and such like but I do not restrict myself to any particular purpose.
As my improvements are capable of some modifications without departing from the
principle thereof, I do not restrict myself to materials, dimensions, or to the precise
form or placement of the parts thereof.
Dated this tith day of March 1889
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicant.
COMPLETE
SPECIFICATION.
An Improved Wrench.
1, JOHN BURTON BURWELL 21 Havelock Road Hastings, Sussex, Gentleman,
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 consists of two curved gripping pieces or jaws of metal hinged
together at one end to form a sort of circle, the other ends are unattached each of
which works in a slot cut in a plate which lies upon and partially covers over the
jointed pieces aforementioned. These slots in the said plate are at about an angle
of 45 degrees with the sides of the plate and the pins which work in them have
rivitted beads to prevent them becoming disengaged with the plate, or small washers
may be rivetted over the head of the pins themselves; ordinary screws may be used
for these pins. Attached to the aforementioned plate is a spindle rising vertically
off the same and terminating with arms to act as a lever for moving the plate.
I use my invention as follows I open the gripping pieces or jaws as wide as
possible and place then over the article to be gripped or unscrewed. I then turn
the handle which moves the plate which acts upon the pins attached to the gripping
pieces or jaws, and thus the gripping pieces or jaws and thus the gripping jaws are
closed together. I channel or roughen the interior surface of the aforementioned
jaws to obtain a better hold on the article to be gripped and unscrewed.
I intend this invention for use in screwing and unscrewing the screw stoppers of
the bottles and such like, but I do not restrict myself to any particular purpose.

page_text: In order that the nature of my said invention may be the more fully understood
I will now proceed to describe the figures on the sheet of drawings hereunto annexed
which are marked with the like letters of reference throughout.
Figure 1 is a section plan looking down upon my improved screw, wrench and
cutting through the vertical spindle.
Figure 2 is an elevation of my improved wrench.
In Figure 1. A and A' are the gripping jaws and B is the hinge on which they
work. is the metal plate having oblique slots D D in same that receives pins E E
which are securely attached to the gripping jaws A and A' respectively. F is the
spindle of handle in section-the jaws of my wrench are here shewn open and the
interior edges roughened or corrugated as indicated by the letter G.
In figure 2, the handle of the wrench is fully shewn.
As my improvements are capable of some modifications without departing from
the principle thereof I do not restrict myself to material, dimensiones, or to the
precise forin or placement of the several parts thereof.
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
An improved screw wrench consisting of two hinged jaws operated by a handle
through the agency of a slotted plate acting upon pins attached to the aforementio.ied
jaws and and working in the before mentioned slots all as hereinbefore set forth in
this specification and embodied in the accompanying drawings.
Dated this 5th day of December 1889.
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicant.