Year: 1887

page_text: Date of Application, 20th May, 1887
Complete Left, 9th Feb., 1888
Complete Accepted, 6th Apr., 1888
We, AUGUSTUS EDWARD STAYNER of Millhouses, Sheffield, Managing Director,
and WILLIAM KOBERTS, of Abbeydale Road, Sheffield, Manager do hereby declare
the nature of this invention to be as follows :-
Hitherto the manufacture of Coke and similar forks, more especially those branches
known as square-setting straightening, and dishing of the prongs, has been carried on
principally by the use of hand tools, and each prong operated upon separately.
This invention consists of the application of tools so constructed that these branches
of the manufacture of forks may be performed upon the whole of the prongs of cach
fork simultaneously, and actuated by hand or other power, and also the manner of
forming these tools.
The square-setting of the back and prongs is performed after the prongs have been
drawn out under the hammer in the usual way, by forcing the back and prongs into
suitable dies or tools, constructed to straighten as much of the prongs as desired.
The tools for this purpose are made with projections to pass between the prongs
and correspond with the required spaces between them, and a portion for pressing
against and straightening the back of the fork at the same time, and a suitable part
for forcing the fork into its place.
The straightening of the prongs may also be effected by drawing them through
between rollers set in a suitable manner, or. passing rollers over the prongs.
The final dishing of the prongs into the required shape is effected by pressing the
whole fork between dies formed into the required curve.
The square-setting, straightening, and dishing may also be done in one set of tools
or dies combining the three separate operations described above.
DL: tot
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1007

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Coke and similar Forks.
We, AUGUSTUS EDWARD STAYNER, of Millhouses Sheffield, Mining Tool Manu-
facturer WM. ROBERTS, of 335 Abbeydale Road Sheffield, foreman 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:-
Hitherto the manufacture of coke and similar forks, more especially those branches
known as square setting, straightening, and dishing of the prongs have been carried
on principally by the use of hand tools, and each prong operated upon separately.
This invention consists of the application of tools so constructed that these branches
of the manufacture of forks may be performed upon the whole of the prongs of each
fork simultaneously, and actuated by hand or other power, and also the manner of
forming these tools.
The square setting of the back and prongs is performed after the prongs have been
drawn out in the usual way under a hammer, by forcing the back and prongs into
suitable dies or tools constructed to straighten as much of the prongs as desired.
The tools for this purpose are made with projections to pass between the prongs
and correspond with the required spaces between them, and a portion for pressing
against and straightening the back of the fork at the same time, and a suitable part
for forcing the fork into its place.
The straightening of the prongs may also be effected by drawing them through
between rollers set in a suitable manner, or passing rollers over the prongs.
The final dishing of the prongs into the required shape is effected by pressing the
whole fork between dies formed into the required curve.
The square setting, straightening and dishing may also be done in one set of tools
or dies, combining the three operations described above.
In order to render the mode of carrying out this invention clearly understood, a
sheet of drawings is annexed, in which like letters refer to like parts in each
figure.
Fig. 1. is a front elevation of the apparatus for square square setting the bar at the
top of the prongs.
Fig. 2. is an end elevation of Fig. 1.
Fig. 3. is a plan of Fig. 1.
Fig. 4. is a separate plan of the part marked c, on the other figures.
a is the part of the apparatus which is fixed and against which the fork is pressed
by the parts b, c, respectively, to square set the bar and prongs, and straighten the
top part of the prongs.
i, i, are projecting pieces which pass between the prongs of the fork, and the
bottom of the spaces between these pieces correspond with the finished conformation
of the top part of the prongs and the under part of the bar.

page_text: The part b, is a moveable die, having a recess to correspond in shape with the top
part of the bar, and which is caused to press the bar on the fixed part of the
apparatus.
The part c, is also a moveable part and has projecting pieces j. j. the ends of which
correspond with the width of the fork prongs and also the spaces between the
projections i. i, on the fixed portion.
The part is used to force the prongs home into the spaces between the
projections i. i.
The operation of square setting is performed as follows:-
The fork is heated and placed on the rack or projecting pieces i. i, of the fixed part
of the apparatus and forced home by the moveable piece c. which straightens the
prongs and bar. The piece c. is then slightly slackened and the piece b, forced on the
top of the bar, which finishes the operation of square setting.
The square setting is all that is required until the straps or socket for attaching
the handle to the fork is welden to the plug p, when the prongs are straightened and
dished by being pressed between top and bottom dies, corresponding with the finished
shape it is desired to give the fork and these dies finish the straightening and dishing
at the same time.
The mode of constructing dies for similar purposes is so well understood that
drawings are unnecessary.
The dies or tools constructed as described and illustrated are actuated by hand or
other power and we do not confine ourselves the precise details as illustrated as these
can be modified in many ways.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is-
The application of tools so constructed that the branches of square setting, straighten-
ing, and dishing of the manufacture of forks, may be performed upon the whole
of the prongs of each fork simultaneousely, each branch separately, or at the same
time as one or both of the other branches, substantially as described and illustrated.
Dated this 8th day of February 1888.