IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by Christopher Catlow at the Office
of the Commissioners of Patents on the 18th December 1880.
CHRISTOPHER CATLOW, of Burnley, in the County of Lancaster, Overlooker.
"IMPROVEMENTS IN LOOMS FOR WEAVING."
This Invention relates to certain improvements for securing on abscence of weft.
The stoppage of the loom when the shuttle is in the box nearest the weft fork to
improved bar temples to improved apparatus for facilitating the letting back the
beam and taking up the slack warp. Improved appliances for working the peg or
barrel to improved guide studs and plates in connecting with the heald cords and
heald staves; to improved in pile or terry weaving apparatus. The use of gear
wheels and tension rollers, so as to reverse the ordinary direction of rotation of
taking up and cloth rollers.
Firstly. In connection with weft hammer is a lever acted upon by a double lift
tappet on the tappet shaft, so that when the weft is absent the fork cannot act
until the shuttle is in the "fork box," or box nearest the weft-fork; the break lever
and weight are connected by rod with a handle and trigger near the stop handle,
or the handle may be applied directly to the break lever.
Secondly. To temples known as the angle bar temples, which heretofore were
constructed of a straight bar. This I curve or wave for a portion of its distance
near the centre, in order that the weaver may have a clear and obstructed view of
the edge of the cloth being woven so as to detect defects in the weaving.
Thirdly. For the purpose of facilitating the letting back and then taking up
the slack warp, I connect the two weighting levers with a bar and handle, the
latter on being raised and lowered at once operates the beam and takes up the
slack warp.
Fourthly. For working the peg or pattern barrels, I employ a pair of pendant
catches attached to the "lifting bar," which gives motion to the catches, so that
one pushes on a notch on one side of the catch wheel, the other pulls on the opposite
side, giving continuous rotary motion to the barrel and pegs; on the axis of the
peg barrel is a hand wheel and a recessed box and spring on axis which admit
the barrel being wound or reversed by hand.
Fifthly. In the use of grooved or recessed guide studs, in which the heald
bands are received and work; this ensures the heald staves being maintained at
rn...

page_text: proper and regular distances apart, and a guide plate for steadying the lower heald
staves.
Sixthly. For pile or terry weaving I apply a back bearer having three bars, the
bottom one being extended, and on its end is a lever; the other end of the latter
rests upon and is operated by a three lift tappet attached to a wheel of a stud; a
pinion on the ordinary tappet shaft drives the wheel and three lift tappet. The
warps are passed through under and over the rods referred to, so that the action of
the three lift tappet upon the rods causes the warp to be eased forwards, then taken
up, whilst a tension bar at the front of the loom connected by bell crank levers
and springs takes up so as to vary the fell of the cloth, and to admit of the loops
and pile being formed.
Seventhly. To ensure the desired tension upon and to prevent vibration of the
cloth during its passage to the taking up roller, I employ gear wheels and tension
roller so arranged as to reverse the ordinary direction of rotation of the taking up
and cloth rollers.