Improvements in the Construction of Loom Pickers.
Year: 1888

page_text: Date of Application, 17th Nov., 1888
Complete Specification Left, 16th Aug., 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Loom Pickers.
I, HERBERT HIND, of Holme Top Mill, Littlo Horton, Bradford, in the County of
York, Picker Manufacturer, do hereby declare the nature of this invention to be as
follows:-
:-
This invention has for its object the construction of pickers made from buffalo hide
for operating the shuttles in looms for weaving, in such a manner that, they are
stronger and more durable than when built up in layers, or the interior packed as is
now the common practice of constructing pickers.
1 accomplish my object in the following manner. Instead of rolling or coiling the
buffalo cuttings from which the pickers are formed, and packing the same in the
interior in order to obtain the necessary strength or thickness, the cutting is bent
around a die until the edges are brought near together and when so bent it is placed
into a blocking press provided with movable blocks.
On operating the blocks to mould the cutting into shape, the internal die by having
its edges bevelled, allows the buffalo cutting on each side to be pressed towards the
centre, thereby obtaining an increased thickness of material; so that on the second
blocking, the sides between the picking strap crossbar are blocked to the necessary
thickness with the picking strap cross bar in the centre, the whole being formed solid
from the same cutting, and without joining in the upper part of the picker; thus by
these means of blocking, pickers are constructed from one cutting which are more
solid, and therefore more durable, than those built up and compressed in the ordinary
manner.
COMPLETE SPECIFICATION.
Improvements in the Construction of Loom Pickers.
1 HERBERT HIND of Holme Top Mill Little Horton Bradford in the County of
York Picker Manufacturer 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 has for its object the construction of pickers made from buffalo hide
for operating the shuttles in loom for weaving and in such a manner that they are
stronger and more durable than when built in layers or the interior packed as is now
the common practice of constructing pickers: and consists in cutting the buffalo hide
to a proportionate size and thickness corresponding to the finished picker a hole being
formed in the cutting through which a taper die is placed, which on the cutting being
bent and put into the blocking press, presses the buffalo hide away from the hole
thereby increasing the thickness of the material adjacent thereto, and material for the
formation of the cross bar between the sides of the picker.
In the accompanying drawings Fig. 1. represents a front view of a finished picker
and Fig. 2 a section through line Ž Z of the said picker made according to my
invention.

page_text: When making pickers of the size shown by Fig. 1. the buffalo hide is cut to
about the size and shape shown by Fig. 3 with a hole considerably less than the
picker eve near to one edge as at A. The cutting is then bent or rolled until the
edges B B are nearly in contact, the taper die C being in the holo A the curved part
of the die fitting the curve of the hole.
On placing the rolled cutting and die C in an ordinary blocking press fitted with
inovable blocks D D mado in parts as shown by Fig. 7, the taper die C on the opera-
tion of the press expands the hole A pressing the hide towards the centre of the
cutting for forming the sides E E. and cross bar F solid; the blocks DD being
pressed together and towards each other by an ordinary blocking press; and by the
movable blocks D D being divided with springs S and guide pins P between as
shown, the cutting is not so liable to become deranged in the press when beginning to
block as it is better supported at the sides than if solid blocks of the thickness of the
finished picker were used: the springs S on applying vertical pressure to the picker
allow the plates to come together and enclose the buffalo hide in the space between
the blocks DD: the circular cross bar F being roughly formed by the curved
recess G in taper die C; the picker being finished by dies or blocks of the ordinary
construction and in the usual manner with the exception that the cross bar F is solid
and does not require staples to keep it together as those formed by rolling or coiling
the buffalo cuttings.
By this arrangement a picker is made from one piece of buffalo hide, the only
joining being where the two edges B B come together shown by line H the division
being about half the thickness of the picker shown by line J in Fig. 2: and by this
arrangement the cross bar F is formed without joint, solid with the sides and may be
in the centre as shown or towards one side by altering the thickness of the metal at
the bottom of curved recess G. The upper part of the picker at E E is also solid
having no joining therein, the only joining as before described being on the lines H
and J thus by these means of cutting and blocking, pickers are constructed from one
piece which are more solid therefore more durable than those built up and compressed
in the ordinary manner.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The method of constructing pickers from one cutting without packing and by
blocking so that the cross bar F and sides EE are solid without lap or joint
substantially as shown and described.
Duted thin 15th day at 1000
JOHN WAUGH,
Agent.