IMPROVEMENTS IN THE MANUFACTURE OF WEFT FORKS FOR LOOMS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I JAMES ASHWORTH of Manor Street Spring Works Bury in the County of
Lancaster Spring Manufacturer do hereby declare the nature of My Invention for
IMPROVEMENTS IN THE MANUFACTURE OF WEFT FORKS FOR LOOMS to be as
follows:-
The object of this invention is to construct a weft fork of solid steel and
whereby all forging is dispensed with.
I take a bar of steel of the required width and having made the same red hot I
pass through rollers in which suitable grooves are formed to produce the necessary
swell or projection which is afterwards bored out to receive the pin or pivot on
which the weft fork works and which rollers are also suitably formed to give the
desired taper to the prongs. Having thus rolled the plate I shear off transverse
pieces of the desired width to join the forks and then stamp out the prongs which
are afterwards bent up and the whole fork is then finished upon emery wheels.
Dated 4th April 1881.
JOHN G. WILSON,
Agent for Applicant,

page_text: I JAMES ASHWORTH of Manor Street Spring Works, Bury in the County of
Lancaster, Spring Manufacturer do hereby declare the nature of my invention
for IMPROVEMENTS IN THE MANUFACTURE OF WEFT FORKS FOR LOOMs and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:―
The object of this invention is to construct a weft-fork of solid steel iron or
other suitable metal and whereby all forging is dispensed with.
I take a bar of steel, iron or other suitable metal of the required width and
having made the same red hot I pass through rollers in the upper one of which
suitable transverse grooves are formed to produce the necessary swell or projection
which is afterwards bored out to receive the pin or pivot upon which the weft fork
works. Having thus rolled the plate I shear off transverse pieces of the desired
width to form the forks and then stamp out the prongs-which are afterwards bent
up and the whole fork is then finished upon emery wheels.
And in order that-this-my-said-invention may be the more readily understood
and carried into practical effect I have hereunto aunexed a drawing of a pair of
rollers suitable for rolling weft-fork blanks in accordance with my invention and
also of the blanks in course of formation.
Fig 1 is a side view of the rolls, in the upper one of which are formed the
transverse grooves a as illustrated.
In performing my invention I take a bar of metal 6 of the desired width and
thickness as illustrated (about full size) by a front and side view in Fig 2 and
having made the same red hot I pass it through the grooved rolls as indicated in Fig 1.
In this manner and by means of the grooves a in the upper roller I produce a
continuous series of blanks with the necessary swells or projections cat suitable
distances from each other as illustrated by a front and side view in Fig 3. Having
then cut off the superfluous metal at the sides I shear off from the length
transverse pieces of the desired width as illustrated by a front and side view in
Fig 4
I then stamp out the prongs, which are afterwards bent up and the whole
fork is then ground and finished upon emery wheels.
Instead of rolling the blanks the width of one fork only I sometimes roll the
blank of sufficient width to suit two or more forks which are then cut up longi-
tudinally into single blanks.
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 method of and machinery for the production of weft fork blanks
substantially as herein before described.
JOHN G. WILSON,
Agent for the Applicant.