An Improved Pipe Wrench.
Year: 1889

page_text: Date of Application, 10th July, 1889
Complete Specification Left, 10th Apr., 1890-Accepted, 10th May, 1890.
PROVISIONAL SPECIFICATION.
An Improved Pipe Wrench.
I TOM VIDEAN BOND, of 16 Plains of Waterloo, King Street, Ramsgate, in the
county of Kent, do hereby declare the nature of this invention to be as follows:-
This invention relates to a certain improved construction of pipe wrench
combining simplicity strength efficiency and cheapness.
The improved pipe wrench is single handed and consists of a bar of iron steel or
suitable metal curved over at one or both ends with curves fashioned internally to
fit various sizes of pipes.
Upon the said bar rides a loose shackle or U shaped piece, having centred in its
free ends a sharp toothed roller or ratchet wheel, and provision is or may be made
for proventing separation of the shackle from the bar..
To use the wrench one hand only is required-the proper curve in the end is
applied to one side of a pipe and the toothed roller to the other side. On application
of power the grip is perfect, and on removal of same the parts are free.
Dated this 10th day of July 1889.
J. C. CHAPMAN,
Agent.
COMPLETE SPECIFICATION.
An Improved Pipe Wrench.
I TOM VIDEAN BOND, of 16 Plains of Waterloo, King Street, Ramsgate, in the
county of Kent, 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 a certain improved construction of pipe wrench
combining simplicity strength efficiency and cheapness.
The improved pipe wrench is single handed and consists of a bar of iron steel or
suitable metal curved over at one or both ends with curves fashioned internally to fit
various sizes of pipes.
Upon the said bar rides a loose shackle or U shaped piece, having centred in its
free ends a sharp toothed roller or ratchet wheel, and provision is or may be made
for preventing separation of the shackle from the bar..
I will fully explain my invention in reference to the annexed drawing which
represents several views of a double ended wrench.
B is the bar curved at either end bb¹ to different radii to fit the various sizes
of pipe commonly in use-the various diameters being marked thereon if desired;
S is the movable shackle with toothed roller s. To prevent separation of the
shackle from the bar the outer curves of the ends may be flattened out making
their width greater than the depth of the shackle as illustrated by the dotted lines
figure 1, or a flexible connection may readily be employed. Figure 3 shows the
shackle S riding on bar B: Figure 4 is a cross section Figure 2 shows the
application.
To use the wrench one hand only is required the proper curve say in the end 6 is
applied to one side of pipe p and the toothed rollers of shackle S to the other side;
on application of power the grip is perfect, and on removal of same the parts are
free

page_text: Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. A pipe wrench constructed as herein before described and illustrated.
2. In a pipe wrench the combination with a curved ended bar of a loose shackle
carrying a toothed roller as and for the purpose set forth.
Dated this 10th day of Anmil 1800
J. C. CHAPMAN, Fel. Inst. Patent Agents,
70, Chancery Lane, London, W.C., Agent for Applicant.