Improvements in and relating to Over-pick Motions of Looms for Weaving.
Year: 1889

page_text: Date of Application, 12th Dec., 1889
Complete Specification Left 12th Sept 1890 -Accepted 18th Oct.. 1890
PROVISIONAL SPECIFICATION.
Improvements in and relating to Over-pick Motions of Looms for
Weaving.
I, JAMES SOUTH of 38 Roseberry Terrace, Burnley in the County of Lancaster,
Engineer, do hereby declare the nature of this invention to be as follows:-
One
This invention relates to over-pick looms, and is designed to dispense with picking
bands and buffer straps used in such loonis, and consists in the employment of a
horizontal metal picking arm, instead of the wooden picking stick now used.
end of this arm projects direct through a slot in the picker a sufficient distance to
allow the picker to slide laterally upon it during the backward and forward movement
of the sley. The other end of the picking arm is fixed to a pair of adjustable serrated
plates mounted on the upper end of the ordinary vertical picking shaft which is
limited in its movement by a stop-piece to prevent the picker from striking the spindle
stud in its traverse. To ensure of the proper working of the horizontal picking arm,
the said arm is bent backwards to a suitable shape or carve on which the picker
moves laterally, allowing the picking arm to complete its traverse without coming in
contact with the end of the hand rail or sley-cap, which would be the case if the
horizontal arm were not so bent.
Dated this 11th day of December 1889
THOS. RICHMOND,
Agent.
COMPLETE SPECIFICATION.
Improvements in and relating to Over-pick Motions of Looms for
Weaving.
I, JAMES SOUTH of 38, Roseberry Terrace, Burnley, in the County of Lancaster,
Engineer, 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 overpick looms, and is designed to dispense with picking
bands and buffer straps used in such looms, and consists in the employment of a
horizontal metal picking arm instead of the wooden picking stick now used. One end
of this arm projects direct through a slot in the picker a sufficient distance to allow
the picker to slide laterally upon it, during the backward and forward movement of
the sley. The other end of the picking arm is fixed to a pair of adjustable serrated
plates mounted on the upper end of the ordinary vertical picking shaft which is
limited in its movement by a stop-piece to prevent the picker from striking the spindle-
stud in its traverse. To ensure the proper working of the horizontal picking arm, the
said arm is bent backwards to a suitable shape or curve on which the picker moves
laterally, allowing the picking arm to complete its traverse without coming in contact
with the end of the hand-rail or sley-cap"
"which would be the case, if the
horizontal arm were not so bent.
In the accompanying drawings,
Fig. 1 is an end elevation and
"
Fig. 2 a plan of an overpick loom constructed in accordance with my invention.
Fig. 3 represents an adjustable stop-piece to check the motion and prevent the
picking arm striking the stud.
...
..11

page_text: Fig. 6 represents another mode of securing the picking arm to that shewn in
Fig. 1.
A is the loom side; B, the sley-cap; C, the box-end ; D, the picker mounted on
the loom spindle E and F the picking shaft. An essential feature of the invention
consists in the employment of a picking arm G, preferably constructed of metal bent
or curved as at H and H. This arm projects through the slot of the picker D in
lieu of being connected by a picking band in the usual way. The curve or bend in
the picking arm is designed to prevent the picker and the arm striking the spindle
stud or the sley-cap; and to assist in this object I also employ a spring stop piece,
against which an incline projection is made to strike, before the completion of the
pick. This devica consists of an incline projection I, carried by the picking armı at
the opposite end to that passing through the slot of the picker, and which before the
completion of the stroke, is carried under the bow-spring J, adjustably attached to
bricket J¹, fixed to the loom-side A. More or less resistance may be applied by the
adjustable spring to the picking arm, as may be desired to counteract the momentum
at the termination of the stroke or pick.
For the adjustment of the picking arm G a pair of adjustable serrated plates or
lises K and K¹ is employed mounted on shaft F, in a somewhat similar manner to
those ordinarily employed. Instead of attaching the picking arm direct to the serrated
plate K as in the usual arrangement, 1 prefer another disc or plate L for that purpose,
to which the picking arm is secured by bolts M and M', as seen in Figs. 1 and 2.
These bolts pass through holes N in the disc L, seen in Fig. 5. To relieve the pick
from being unduly rigid, the disc L is loosely mounted on a collar O cast to the upper
serrated disc K, so as to be capable of swivelling laterally upon the collar to the
extent determined by the lugs P (also cast to the upper serrated plate K) and the
space between the projecting ribs R and R' of the swivel dise I, to which the picking
arm is attached.
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 employment and use of a picking arm, bent to shape, as seen in Fig. 2,
protruding through a slot oropening in the picker D, and operating substantially as
described and illustrated.
Dated this 11th day of September 1890.
THOS. RICHMOND,
Agent.