Improvements in Picker Preservers or Check Motions of Looms for Weaving.
Year: 1889

page_text: Date of Application, 13th Feb., 1889
Complete Specification Left, 6th Nov., 1889-Accepted, 7th Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in Picker Preservers or Check Motions of Looms
for Weaving.
I, GEORGE HALLIWELL of No. 163 Higher Audley Street Blackburn in the County
of Lancaster, Weaver, do hereby declare the nature of this invention to be as
follows
"
This invention relates to improved appliances designed for checking the momentum
of the "
picker after the pick of the shuttle has been made, and also when the
return movement of the picker is made, prior to the next pick, and the invention
consists of adjustable, weighted levers forming buffers which gradually ease and stop
the picker after each movement.
According to this my said invention, fixed to both ends of the picker spindle are
two upright standards of metal, at the top of which is a cross bar, and from this cross
bar is suspended a weight to the bottom of which is fixed a pair of adjustable fingers
which loosely clip the picker spindle so that the picker at the end of each movement
comes in contact with the fingers referred to, the weight yielding to the pressure, and
swinging on its cross bar gradually stops the picker.
In some cases I prefer to use in lieu of the uprights and crossbars a bell crank
lever supported and free to move on a through pin fixed in a slot in the front of the
slay bean, to one end of the lever is fixed the pair of fingers clipping the spindle, the
other arm of the lever being weighted and the action is similar to that above
described. A moveable stop pin is provided to regulate the distance the lever moves.
The fingers which clip the spindle can be of metal, leather, or metal covered with
leather, and the size of weights used varied according to requirement.
Dated this 12th day of February 1889
WALTER BRIERLEY,
Town Hall Buildings, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Picker Preservers or Check Motions of Looms
for Weaving.
1, GEORGE HALLIWELL, of No. 163, Higher Audley Street, Blackburn in the
County of Lancaster, Weaver, 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 improved appliances designed for checking the momentum
of the "picker" after the pick of the shuttle has been made, and consists of adjustable,
weighted levers forming buffers which gradually ease and stop the picker after each
movement.
According to this my said invention, fixed to one or both ends of the picker spindle
are two upright standards of metal at the top of which is a cross bar or bars and from
this is suspended a weight by a pair of adjustable or fixed fingers which loosely clip
the picker spindle so that the picker at the end of each movement comes in contact
with the weight or fingers referred to, the weight yielding to the pressure, and
swinging on its cross bar gradually stops the picker.
In some cases I prefer to use in lieu of the uprights and crossbars a bell crank
lever or other lever supported and free to move on a through pin fixed in a slot in the

page_text: front of the slay beam, to one end of the lever is fixed the pair of fingers or a finger
clipping or crossing the spindle, the other arm of the lever being weighted and the
action is similar to that above described. A moveable stop pin is provided to regulate
the distance the lever moves. The fingers which clip the spindle can be of metal,
leather, or metal covered with leather, and the size of weights used varied according
to requirement.
Such being the nature and object of my invention the following is a complete
description of same, reference being had to the accompanying drawings in which
Fig. 1 is a front elevation of part of a shuttle box, with my improved picker
preserver attached thereto.
Fig. 2. is a plan view of Fig. 1.
Fig. 3. is an end elevation, partly in section of the same.
Fig. 4. is a front elevation of a part of a shuttle box with a modified form of my
picker preserver applied thereto.
Fig. 5 is a plan view of Fig. 4.
According to this my said invention fixed to the back hoard 1 and the front of the
shuttle box 2 and at one or both ends of the picker spindle 3 are two upright
standards 4. 5 of metal, at the top of which are the cross bars 6. 7, which form axles
or bearings for two hanging fingers or levers 8. 9 to the bottom of which, and below
the picker spindle 3, is attached the cross bar and weight 10, the two fingers or
levers 8. 9 and the weight 10 clip or surround the picker spindle 3 in such a way
(see Fig. 3) that the picker 11 at the end of each movement will come in contact
with the weight and cross bar 10 the weight of which, and of the fingers 8. 9 referred
to, will yield to the pressure or force of the picker 11 and the said weight 10 and
fingers 8. 9 will swing or pivot on their axles or cross bars 6. 7 and the momentum of
the picker is gradually eased and stopped.
Figs. 4 and 5 are illustrations of a modified form of my invention. In lieu of the
uprights and cross bars, or axles a bracket 12 is bolted and fixed to the front of the
shuttle box 2, one end of the said bracket is slotted at 13, and the bolt A which
passes through the said slot 13, formis an axle, or pin, on which a lever 14 is free to
turn, this lever 14 carries at its free end a cross bar, and weight 10, which passes
underneath and at right angles to the picker spindle 3 in such a way that the
picker 11 will come in contact with the said weight 10 at each movement. Resting
on the lever 14 is a small pulley or runner 15 carried by a short arm or lever 16 free
to turn on the stud 17 at one end of the bracket 12, when the picker 11 comes in
contact with the weight or cross bar 10, its weight and the resistance of the runner 15
moving up the inclined face 20 and the weight of the lever 16, gradually ease and
stop the picker 11. and when, (in both forms of my picker preserver) the picker 11 is
removed the several parts resume their former position by gravitation. A moveable
stop pin 18 is provided which will prevent the weight or cross bar 11 moving beyond
a certain and set distance, and the cross bar or weight 10 and fingers, can be covered
with leather, rubber, or other material, or made of baffalo hide, in order to lessen the
jar, on contact between the picker 11 and the said weight or cross bar. In some
cases I also use a ring or buffer 19 of india rubber, so that in case the picker 11
passes the checking appliances, a buffer will be in position to receive it.
The weight or cross bar 10 I make detachable, so that in case of breakage it can
readily be replaced and if necessary the weight of the cross bar 10 be varied.
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 :-
1. The general construction, combination, and arrangement of the parts constituting
the improved picker check and preserver as herein fully described and as illustrated
by sheet 1 of the accompanying drawings,

page_text: 2. The bracket 12, lever 14, cross bar and weight 10, runner 15, and lever 16, all
in combination, and constituting an improved picker preserver as and for the purpose
herein described and as illustrated by sheet 2 of the accompanying drawings.
Dated this 5th day of November 1889.
GEORGE HALLIWELL.
By his Agent, Walter Brierley,
Central Chambers, Halifax.