Improvements in and relating to Let-off, Take-up, and Picker Checking Mechanism of Looms.
Year: 1892

page_text: Date of Application, 15th Mar., 1892
Complete Specification Left, 15th Dec., 1892-Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Let-off, Take-up, and Picker
Checking Mechanism of Looms.
We, PETER OAKES of 91, Gordon Street, Stoneyholme, Burnley, in the County
of Lancaster, Weaver, and JAMES LEIGH of Curzon Street, Burnley, aforesaid,
Gentleman, do hereby declare the nature of this invention to be as follows:-
:-
The first part of our invention relates to an improved let-off and take-up
motion and consists of a pair of corrugated or toothed rollers, which gear with
each other, and between the two the warp is inserted, and prevented from slipping
through the nip of the rollers by its intersection between the corrugations of the
respective rollers. One or other of these rollers may be connected by sprocket
wheels and chain to the measuring roller or other moving part of the take-up
motion to ensure an uniform delivery of warp from the corrugated rollers in
accordance with the take-up of the cloth. Instead of the sprocket wheels and
chain; the connection between the corrugated rollers and the take-up motion may
consist of a shaft and bevel gear.
The object of the next part of our invention is to dispense or partially
dispense with the check straps and buffer straps. For this purpose, a tab of leather
or other suitable material is mounted on one or both ends of the loom spindle.
Each tab is connected by a spring to a small bracket, or swivel piece, fixed or
centred to the sley, so as to ease the concussion at the termination of the pick at
the buffer end of the spindle; whilst the tab and spring at the opposite end checks the
blow or force of the picker, when the shuttle enters the box, and impels the
picker backwards against the tensional appliance or check: or, if desired a wire or
other suitable connection may be established between the swivel lever and the
respective tabs on the loom spindle in substitution of the springs above
described.
Dated this 14h 1
1000
THOS. RICHMOND,
Agent.
COMPLETE SPECIFICATION.
Improvements in and relating to Let-off, Take-up, and Ploker
Checking Mechanism of Looms.
We, PETER OAKES of 91, Gordon Street, Stoneyholme, Burnley, in the County
of Lancaster, Weaver, and JAMES LEIGH of Curzon Street, Burnley, Gentleman,
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 :-
The first part of this invention relates to an improved let-off and take-up motor,
and consists of a pair of corrugated or toothed rollers, which gear with each other,
and between the two the warp is inserted and prevented from slipping through the
nip of the rollers by its intersection between the corrugations of the respective
rollers. One or other of these rollers may be connected by sprocket wheels and
chain to the measuring roller or other moving part of the take-up motion to ensure
an uniform delivery of warp from the corrugated rollers in accordance with the
take up of the cloth. Instead of the sprocket wheels and chain, the connections
ID 21

page_text: between the corrugated rollers and the take-up motion may consist of a shaft and
bevel gear..
The object of the next part of our invention is to dispense or partially dispense
with the check straps and buffer straps. For this purpose, a tab of leather or
other suitable material'is mounted on one or both ends of the loom spindle. Each
tab is connected by a spring to a small bracket or swivel piece fixed or centred to
the sley, so as to ease the concussion at the termination of the pick, at the buffer
end of the spindle; whilst the tab and spring at the opposite end checks the blow
or force of the picker when the shuttle enters the box, and impels the picker
backwards against the tensional appliance or check; or, if desired, a wire or other
suitable connection may be established between the swivel lever and the respective
tabs on the loom spindle, in substitution of the springs above described.
In the accompanying drawings, Fig. 1 is an elevation and Fig. 2 a partial front
view of a power loom, in which views are represented a pair of corrugated, toothed
or fluted rollers, which gear with each other and are connected with the taking-up
or measuring roller by sprocket wheels and chains or other driving melium, so to
produce uniformity in the delivery of warp and take-up of the cloth.
A represents the loom side; B the warp beam, the arbor of which is supported
by the bracket C, and is held in place by the friction block D, adjusting screw E
and handle F.
Immediately above the warp beam B are situated the corrugated or fluted
rollers G and H. On the arbor of the latter is secured a sprocket wheel I
provided with a sprocket chain or the like J which drives the intermediate
sprocket wheels K and L. Another sprocket chain or the like M connects the
intermediate wheel K with the sprocket wheel N. This wheel is mounted loosely
on the arbor of the taking-up or measuring roller O, and acts after the manner
of a clutch, being provided with projecting pin N¹ which is pushed forward to
meet a corresponding pin at the end of the measuring roller, to connect the two
together. When the weaver wishes to let back the warp, he withdraws the swing
lever or presser piece O¹ from the wheel N, which may now be brought out of
contact with the roller O.
The warp is conveyed from the warp beam B, and inserted between the nip of
the corrugated or fluted rollers G and H, and passed over the top roller G, and
from thence to the healds and reed. The intersection of the warp between the
corrugations or flutings prevents any tendency to slip of the warp passing between
them.
Fig. 3 represents the next part of our invention for checking the picker on
each side of the box. P and P' are tabs of leather or other suitable material,
mounted one at each end of the loom spindle Q. The tabs P and P¹ are connected
by the springs R and R¹ to a small swivel lever S or to a fixed stud, in such
manner as to offer tensional resistance or check to the force or blow of the picker
in either direction. The tabs may be secured in position by pegs or strips of
leather as shewn.
•
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we,
claim is:
-
1. In a warp let-off motion the employment of corrugated or fluted rollers G and H,
substantially as described and illustrated.
2. In a warp let-off motion, corrugated or fluted rollers G and H, connected by
sprocket wheels and chain to the taking-up roller, substantially as described and
illustrated.
3.. In combination with our improved warp let-off motion the clutch-like-
arrangement for disconnecting the sprocket wheel N from the taking-up or
ineasuring roller, substantially as described and illustrated.
4. In combination with our improved warp let-off motion, friction block D,.

page_text: adjusting screw E and handle F for applying frictional resistance to the delivery
of the warp, substantially as described and illustrated.
5. In a picker check, the combination of tabs P and P¹, springs R and R¹, and
swivel lever S, substantially as described and illustrated.
Dated this 14th day of December 1892.
THOS. RICHMOND,
Agent.