Year: 1888

page_text: THOMAS BATCHELOR GILMORE General Smith and Machinist Borringdon near
Hemel Hempstead Herts 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 :--
The Adjustable Pipe Wrench is constructed that it can be altered to any required.
size by screwing the Handle or Lever up or down, thus enabling the operator to grip
several sizes of pipe with the same Wrench. The Wrench can be worked in any
position, and in a very small space, as it will release its grip instantaneously at the
wish of the operator by a backward motion of the Handle or Lever and will grip its
work immediately the Lever is pressed forward.
The Wrench consists of four working parts and one small spring, viz., Main Grip A,
Handle or Lever B, Swivel Nut C, & Catch and Spring D.
The Main Grip A is made hooked at the top to fit any size of pipe and has two
ears E at the bottom into which is fitted the studs F of the Swivel Nut.
The Handle or Lever B is made square at the top and bevelled on the end, upon
which is made a number of teeth G for biting the pipe &c. and is of sufficient size as
not to fracture the pipe. Below the Head L it is fitted with a suitable thread M
which passes through the Swivel Nut C and is of sufficient length to alter the Wrench
to any required size which the Main Grip A will take within it.
At the bottom of the thread M is fitted a small collar H so that the Lever B
cannot be removed from its proper position. At the back of the thread M is cut
a slot I the whole length of the thread M. into which the catch D is fitted. The.
Handle or Lever B is extended below the thread M and is of sufficient length &
size so as to obtain a powerful leverage upon the pipe.
The Swivel Nut Cthrough which the Handle or Lever B is screwed is fitted with
two solid studs F which are fitted into the respective ears E of the Main Grip A
which allow the Main Grip A to move backwards or forwards so that it can be
easily fitted upon a pipe. The Swivel Nut C has a recess J made in the side of it
into which is fitted the Catch & Spring D.
The Catch & Spring D is fitted into the swivel C Nut in a direct line with the Slọt I a
in the back of the thread M of the Lever B into which the Catch D drops & holds
the lever B in the proper position for use, it is then impossible for the Lever B to be
pressed upon the pipe in a wrong position. When the Wrench is altered in size the
Catch D requires to be pressed on the back end K which raises the Catch D from the
Slot I and the Lever B is free to be screwed up or down and immediately the Catch D
is free it springs into its proper place and the Wrench is ready for use.
All the working parts of the Wrench are made of steel and are made of various
sizes according to the work they have to perform.

page_text: Date of Application, 7th July, 1888
Complete Specification Left, 1st Nov., 1888
Complete Specification Accepted, 22nd Jan.. 1889
THOMAS BATCHELOR GILMORE General Smith & Machinist Borringdon near
Hemel Hempstead Herts do hereby declare the nature of this invention to be as
follows:-
The Adjustable Pipe Wrench can be altered to any required size by screwing the
Handle or Lever up or down which is fitted with a fine thread thus enabling the
operator to make but slight alterations in size.
The Head or Top of Lever or Handle is square but it is bevelled on the end and
fitted with a number of Teeth which take a firm grip when the Lever or Handle
is pressed.
The swivel Nut through which the Lever or Handle is screwed is fitted with two
solid Studs which pass through the respective ears of the Main Grip of the Wrench
thus dispensing with screws or rivets which often get loose.
The Main Grip is hooked at the top so as to fit any size of pipe, and has two ears
at the bottom into which is fitted the Studs of the Swivel Nut which allows the Main
Gripp to move backwards or forwards which enables the operator to work the Wrench
with great rapidity and ease.
At the bottom of the thread of the Lever or Handle is fitted a small collar to
prevent the Lever or Handle from being removed from the Swivel Nut the whole.
being made of Steel and of various sizes according to the work for 'which they are
required.
CT1 1000

page_text: Having now particularily described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
1 claim is.
..
1st. The Catch & Spring D to be new and of great advantage by holding the
Wrench in its proper position for use and at any required size.
2nd. Swivel Nut C as forming part of the Catch D attachment as the Catch &
Spring D is fitted into the same.
.
3rd. Handle or Lever B as forming part of the Catch D attachment the Slot I
allowing the Catch D to drop into it and the top of which is bevelled G so as
to take a firmer grip upon the pipe.
4th. That the Catch Spring, Swivel Nut & Handle or Lever be considered one
combined new feature which I claim to be new.