Improvements in Apparatus for Propelling Shuttles in 'Looms for Weaving.
Year: 1892

page_text: °
Cate of Application, 10th May, 1892
Complete Specification Left. 22nd Oct., 1892-Accepted, 3rd Dec., .1892
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PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Propelling Shuttles in 'Looms
for Weaving.
i
We WILLIAM SANDERSON of 50 The Crescent, Salford, in the County of
Lancaster, Manager, WILLIAM PULLEN of King Cross, Halifax in the County of
York, Engineer, and ARTHUR HOLDEN of Harley Head, Lightcliffe, in the
County of York, Designer, do hereby declare the nature of this invention to be
as follows:-
--
The object of our invention is to construct an apparatus for propelling shuttles
in looms for weaving and dispensing with pickers, picking sticks, straps, spindles,
tappets, and cones and the like now used for the above purpose.
U
Upon
the sley board of looms at each end we fix a small cylinder and piston,
connected to each cylinder is preferably a three way tap, a pipe passing across [the
loom connects these taps, and a second pipe from a T upon the aforesaid pipe
connects the same with a pivotted or oscillating air pump or exhaust placed at one
end of the loom, or in any other suitable position. This pump being operated by
levers and studs which receive their motion from the sley board, which is in turn
operated as ordinary.
A rod or bar passing across the loom is connected at each end by an arm to the
taps of the cylinders. A lever secured to each end of the bar is pivotted upon a
stud, and has an antifriction bowl or runner at one end, the taps are opened, and
shut alternately by means of the antifriction bowl upon the lever coming in contact
with a tappet or inclined planes (fixed in any suitable position) and moving the
pivotted lever and bar, which acts upon the arm of the tap, when the runner
arrives at a certain position upon the tappet or inclined planes it allows (by means
of the three way tap) the cylinders to alternately exhaust for the next operation..,
When the sley board is moved back into position for the shuttle being thrown
across the loom, such movement operates the pump, and the levers and antifriction
bowl (by means of the inclined planes) opens the tap at one end allowing the air
from the pump to pass into the cylinder, so forcing out the piston, which (having a
buffer of any suitable material at one end) acts upon the shuttle like an ordinary
picker, and throws the same across the loom. At the next operation of the *ley
board, the lever and antifriction bowl comes in contact with the other side of the
inclined plane, pressing back the rod or bar, so closing the aforesaid tap and
opening the one at the other end of the loom, the aforesaid operation is then
repeated. A spring upon the piston rod after the exhaust has taken place, brings
the same into position for the next pick.
Or we may employ a smaller air pump operated by means of a friction pulley or
disc upon a suitable shaft, the said pulley receiving its motion from pulleys upon
the driving part of the loom, and the pressure of the friction or air regulated,
adjusted, or disengaged, by means of a screw or lever fixed and operated in any
suitable manner. By this means the pump may be operated more quickly and a
greater pressure of air obtained.
Or in place of the piston being operated by compressed air from a pump, the
same motion may be effected by vacuum caused by reversing the cylinder and
pump.
Dated this Ninth dow of Mar 1892
JOHN E. WALSH,
Crossley Street, Halifax, Agent for the Applicants.

page_text: ig is a sectional elevation of two way tap shown at Fig. 1.
Fig. 4. is a sectional elevation of a four way tap.
Fig. 5. is a cross section of Fig. 4.
Fig. 6. is a sectional elevation of oscillating air pump.
Upon the sley board A of looms, at each end, we fix a small cylinder B and
piston C, connected to each cylinder is preferably a two way tap D, these taps are
connected by means of a pipe E passing across the loom, the pistons C are
alternately operated by compressed air supplied to the cylinders B by means of
an air pump F, and pipes E and G.
A projection or finger L (at each end of a shaft L' passing across the loom)
comes in contact alternately with a stud M upon a lever M' attached to and
operating the valve spindle of each of the two way taps D, the projection or
finger L pushes back the said lever M¹ and opens the valve D, so forcing out the
piston C, this piston having a buffer C' of any suitable material at one end, acts
upon the shuttle like an ordinary picker and propels the same across the loom,
after which the said lever M' is liberated and returns to its position for the next
operation by means of a spiral or other spring M', at the same time opening a
second outlet or passage N in the valve, so allowing the piston to exhaust as it is
returned by means of a spring upon the piston rod, this operation is repeated
alternately at each end of the loom each time the sley beats up.
The shaft L being driven preferably by means of chain P and chain wheels P¹
from the driving or other shaft of the loom.
The air pump is driven by means of a gear wheel H preferably upon the loose
pulley H of the driving shaft H2 of the loom, gearing with a second gear wheel J
upon a stud J', this gear wheel in turn operates the crank K and connecting
rod K' of the pump F.
The driving mechanism of the pump being preferably driven from the loose
pulley of the loom, so that the pump may continue working when the loom is
stopped for some cause or other, and upon the strap or belt being placed upon the
fast pulley H³ an ordinary spring catch upon the same comes in contact with a
projection on the loose pulley, causing the same to revolve without a stoppage of
any kind, thus keeping up the requisite pressure of air in the pipes.
We also preferably employ a suitable air valve R upon the pipe G to regulate
the pressure of air within the pipes E and G.
Or in lieu of operating the valve spindle as before described, we attach the four
way valve D' to one end of the cylinders B, see Figs. 4 and 5. Upon the plug
or valve spindle S are suitable radial arms S¹ which as the sley beats up, come in

page_text: contact with a projection or vertical rod T fixed in any suitable position and which
moves the said plug one quarter of a revolution alternately charging the cylinder
or allowing it to exhaust as desired; a ratchet wheel U and ratchet U
upon the
boss of the radial arms prevent the plug from being reversed when the sley
recedes for the next operation.
Also we may place a two way valve at the bottom of the air pump or exhaust
and the said pump may pivot or oscillate upon the plug of the aforesaid valve,
(see Fig. 6.) so that as the disc or crank connected to the piston rod revolves or
rotates it may alternately charge by means of inlet V or exhaust, by means of
outlet W as desired, by this construction of pump, no dirt and sand can possibly
get into the valves and cause a leakage, as is now the case with ordinary air
pumps.
Having now particularly described and ascertained the nature of this inven--
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. Constructing looms for weaving with independent pneumatic action for
operating the shuttles as shown and described.
2. In looms for weaving the use and employment of cylinders B, pistons C,.
buffers C, two way taps D, pump F, pipes E and G, fingers L, levers M' and
studs M, operated in the manner and for the purposes substantially such as shown
and described.
3. In looms for weaving the use and employment of cylinders B, pistons C,.
buffers C¹, four way taps D', and rods T, pump F, pipes E and G, operated in
the manner and for the purposes such as shown and described.
4. In looms for weaving the use and employment of cylinders B, pistons C,.
buffers C', four way taps D', rods D', oscillating pump F, pipes E and G operated.
in the manner and for the purposes substantially such as shown and described.
Dated 21st October 1892.
JOHN E. WALSH,
Crossley Street, Halifax, Patent Agent for the Applicants..