Improvements in or relating to Picking and Taking-up Motions Employed in Looms for Weaving.
Year: 1889

page_text: Date of Application, 28th June, 1889
Complete Specification Left, 27th Mar., 1890-Accepted, 3rd May 1890
•
PROVISIONAL SPECIFICATION.
Improvements in or relating to Picking and Taking-up Motions
Employed in Looms for Weaving.
I, JOHN TAYLOR of 85 Davenport Street, Bolton in the County of Lancaster,
Manager, do hereby declare the nature of my said invention to be as follows.:-
This invention relates to improvements in looms for weaving and has for its object
that of providing simple and efficient picking and taking-up motions which will
considerably reduce friction, strain, and vibration on the loom, and allow of the latter
being turned backwards without operating either of the said motions. To effect this
I provide a lever with a loosely mounted concaved sliding piece, against which the
ordinary picking bowl strikes each time the shuttle is to be thrown through the
"shed.'
This lever is pivoted to the loom side or otherwise in any convenient
manner, and is coupled to a side shaft, carrying a quadrant or its equivalent connected
to the picking stick, by a lever and rod. The side shaft is mounted in fixings on the
loom side in close proximity to the picking stick. To the lever or rod on the side
shaft is coupled a lever carrying a "pawl" which operates on a ratchet wheel mounted
on a centre attached to the loom side. The ratchet wheel is connected by suitable
spur or other gear with the taking-up roller of the loom. Immediately the loom is
turned or moved backwards and the picking bowl strikes the loosely mounted concaved
sliding piece, the latter is so constructed as to move or slide backwards without
moving its supporting lever sufficiently to operate either the picking or taking-up
motions. The concaved sliding piece as soon as it is released from the picking bowl-
when making a backward stroke-is re-set on its supporting lever by a spring or
its equivalent.
1
371 T
1000
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Picking and Taking-up Motions
Employed in Looms for Weaving.
I, JOHN TAYLOR of 85 Davenport Street, Bolton in the County of Lancaster,
Manager, do hereby declare the nature of my said 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 improvements in looms for weaving and has for its object
that of providing simple and efficient picking and taking-up motions which will con-
siderably reduce friction; strain, and vibration on the loom, and allow of the latter
being turned backwards without operating either of the said motions. To effect this
I provide a lever with a loosely mounted concaved sliding piece, against which the
ordinary picking bowl strikes each time the shuttle is to be thrown through the
"shed." This lever is pivoted to the loom side or otherwise in any convenient
manner, and is coupled to a side shaft, carrying a quadrant or its equivalent connected
to the picking stick, by a lever and rod. The side shaft is mounted in fixings on the
loom side in close proximity to the picking stick. To the lever or rod on the side
shaft is coupled a lever carrying a "pawl" which operates on a ratchet wheel mounted
on a centre attached to the loom side. The ratchet wheel is connected by suitable
spur or other gear with the taking-up roller of the loom. Immediately the loom is
turned or moved backwards and the picking bowl strikes the loosely mounted concaved
sliding piece the latter is so constructed as to move or slide backwards without moving

page_text: its supporting lever sufficiently to operate either the picking or taking-up motions.
The concaved sliding piece as soon as it is released from the picking bowl-when
making a backward stroke-is' re-set on its supporting lever by a spring or its
equivalent.
D
mechanisın.
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Fig. 5 is an elevation of the side lever carrying the concaved sliding piece showing
how the loom can be turned backwards without operating either the picking or taking-
up motions, and
Fig. 6 is a section of side lever and sliding piece through line A' B' in Fig. 2.
In all the figures the same letters are employed to indicate corresponding parts.
A is the loom side; B the crank shaft of the loom ; C the crank; D the picking
bowl mounted on the centre E secured to the crank C by the nut F; G the side lever
mounted on the centre H in the fixing I secured to the loom side by the bolts or
set screws J. K is the concaved sliding piece mounted on the upper side of the side
lever G, and is secured in position by the slide L and rod M; the latter being fixed
in the snug N on the end of the lever G. The end of the lever G is provided with
the slot O through which the rod P passes to couple it with the side shaft Qby means
of the lever R. The side shaft Q is mounted in the fixings S secured to the loom
side A.
On the side shaft is mounted the lever T carrying the quadrant U connected
to the picking stick V by the strap W and the shackle X. The picking stick V is
provided with the spring Y attached to the loom side A to ensure of it assuming its
normal position as in Fig. 1-after the shuttle has been thrown through the "shed."
Z is a check strap to determine the backward movement of the picking stick V, and
is secured to the latter and the loom side A by the bolts or set screws C. D' is a
buffer against which the picking stick V strikes when throwing the shuttle through the
"shed."
E' is the "
sley" of the loom on which the shuttle travels through the "shed."
F is the "sley "sword mounted on the rod G on which the picking stick V oscillates
by the action of the "sley" E'. H' is the taking-up roller of the loom mounted on
the shaft I', and fitted with the spur wheel J'; the latter being driven by the spur
pinion K' on the shaft or centre L. On the latter is mounted the spur wheel M
driven by the spur wheel N' mounted on the shaft or centre O' carrying the ratchet
wheel P. The latter is operated by the pawl Q' pivoted to the lever R' mounted on
the centre or shaft O'. On one end of the lever R' is the fork S' to couple the same
to the lever R¹ by the spring T', rod U', and the nuts V'. The "pawl" W₁ pivoted
to the loom side A is employed to prevent the ratchet wheel P' moving backwards
when released from the forward action of the "pawl" Q. The hand lever X¹ pivoted
to the loom side A is for the purpose of raising the "pawls" W' and Q' from the
ratchet wheel P¹ when it is desired to operate the taking-up roller H' backwards.
The "pawl" Q is connected to the hand lever X' by the link Y', provided with the
slot Z to allow the "pawl" Q' to operate the ratchet wheel P¹ when operating the
roller H' to wind on the cloth without lifting the "pawl" W¹.
This invention operates in the following manner :-As the crank C rotates-in
the direction indicated by the arrow-with the crank shaft B, the picking bowl D
strikes the concaved piece K on the side lever G each time the shuttle is to be
thrown through the "shed." This causes the lever G to be suddenly depressed which
gives motion to the side shaft Q by means of the connecting rod P and lever R, which
action causes a sudden jerk to be imparted to the picking stick V by the lever T,
quadrant U, strap W, and shackle X, by which the picking stick V throws the shuttle
through the "shed "each time it is operated. When the picking stick V is operated

page_text: to throw the shuttle it is arrested, at the end of its stroke, by the leather buffer D',
and is by the tension imparted to the spring Y immediately returned to the position
shown in Fig. 1 ready for the next operation on the shuttle. The backward position
of the picking stick V shown in Fig. 1 is determined by the check strap Z.
The picking motion is fixed at each end of the loom to give the requisite to and fro
motions of the shuttle, but the taking-up motion is fitted to one end of the loom only
as shown on the drawings, by which it is operated each alternate pick. This is effected
by fixing to the lever R the rod U₁ with the nuts V' to couple it to the fork end S¹ of
the lever R. Between the lever R and the fork end S' of the lever R¹ is disposed the
spring T encircling the rod U₁, for the purpose of operating the lever R¹ each time
the side shaft Q is operated. The spring T¹ does not operate suddenly on the
lever R', its motion being effected only when the coils of the spring T¹ are in, or
almost in, contact with each other, by which a gradually yielding action is given to
the lever R¹ when operating the taking-up roller H. The tension on the spring T
can be adjusted by the nuts V₁ on the screwed end of the rod U¹.
The lever R¹ is provided with the arm D' to which is attached the spring D³ to
maintain, or nearly so, the correct position of the lever R when at rest. The other
end of the spring D³ is attached to the loom side A. Each time the fork end S¹ is
depressed by the action of the lever R on the side shaft Q the "pawl "Q¹ operates the
ratchet wheel P¹, which causes the taking-up roller H₁ to be rotated by the inter-
vening spur wheels N', M₁, K, and J.
When it is desired or necessary to turn the taking-np roller H' the wrong way,
that is, to ease or unwind the cloth on the same, it is effected by depressing the
band lever X which lifts the "pawls" Q' and Wi out of contact with the ratchet
wheel P¹.
If desired the fork end S¹ of the lever R' can be coupled direct to the rod P by any
suitable mechanical means, by which the rod U¹, spring T', and the nuts V₁ are
dispensed with.
This invention allows of the loom being turned or moved backwards without
operating either the picking or taking-up motion. This will be fully understood
by referring to Fig. 5, in which case it will be seen that immediately the picking
bowl D operates on the concaved piece K the latter slides backwards on the rod M
and slide L, without moving the side lever G sufficiently to operate either the
picking or the taking-up motion. Immediately the concaved piece K is released
from the backward movement of the picking bowl D it is slid back or re-set to
the position shown in Fig. 2 by the spring C², when it is ready for the next forward
movement of the picking bowl D.
Having thus stated the nature of my invention and described the mode of per-
forming the same, I would have it understood that I do not confine myself to the
precise details or configuration of the parts I have shown and described as the same
may be varied or modified without departing from the principle of my invention,
and that it may be adapted, arranged, and controlled to suit the various modes of
picking employed in the numerous makes of looms at present in use, but what I
claim is:-
1. Connecting the side lever G with the side shaft Q for the purpose of operating
the picking and taking-up motions either jointly or severally.
2. Connecting the taking-up and picking motions in such a manner that neither
will be operated when turning or moving the loom in a backward direction, sub-
stantially as described and as shown on the drawings.
3. In combination with the metallic side-lever G the use of the sliding piece K
with the rod M and spring (or their equivalents, substantially as described and as
shown on the drawings for the purpose specified.
4. The general construction, combination, and arrangement of parts forming my
improved picking motion, applied and operating substantially as described and as
shown on the drawings.

page_text: The general construction, combination, and arrangement of parts, or their
equivalents, forming, my improved taking-up motion, arranged so as to prevent its
being operated when the loom is turned or moved in a backward direction.
Dated in 25th March 1890.
ร
EDMUND CHADWICK,
Agent.