Improvements in Looms for Weaving Double Pile Fabrics.
Year: 1885

page_text: Improvements in Looms for Weaving Double Pile Fabrics.
We MARK LEACH, Machine Broker, of Sun-Bridge Road; JOHN HEATON,
Mechanic, of 87 Whetley Lane, and JOHN BENTLEY Overlooker of 50 Carlisle
Terrace all of Bradford in the County of York do hereby declare the nature of
our invention for IMPROVEMENTS IN LOOMS FOR WEAVING DOUBLE PILE FABRICS
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 looms for weaving double pile fabrics face to face and.
its object is firstly to facilitate the process of disconnecting the tappets actuating;
the healds carrying the pile warp with the tappet shaft when a "tab or plain
portion of cloth without pile is required to be woven ; and to facilitate reconnecting
such tappets when it is again desired to form pile. And secondly, to automatically.
and systematically disconnecting and reconnecting the whole or part of the tappets
actuating the healds carrying the pile warp; and simultaneously stopping, and
starting the rollers delivering the pile warp to such healds, thereby forming regular
patterns of alternate stripes of pile and plain cloth or alternate diagonal checks of
pile & plain cloth.
Figures 1 and 2 of the annexed drawings are a sectional elevation and a side
elevation of a set of tappets shewing the method of simultaneously disconnecting
and simultaneously reconnecting with the tappet shaft, the whole of the tappets
actuating the healds carrying the pile warp. Figure 3 is a side elevation of a set
of tappets and as much of the loom as required to illustrate our invention for.
weaving alternate stripes of pile and plain cloth; Figure 4 is a plan and Figure 5
is a front elevation of the same. Figures 6, 7 and 8 are a side elevation, a plan,,
and a front elevation of the arrangement for weaving alternate diagonal checks of,
pile and plain cloth. The healds and their connections with the tappets being
omitted as they are of the ordinary type. Similar letters refer to similar parts in
all the figures.
Referring to figures 1 and 2. A is the tappet shaft shewn broken off at its
connection with the loom frame, B is a loose sleeve kept in position by the collar C
and on which the tappets D actuating the healds carrying the pile warp are fixed
by the set screws E and bolted together by the bolts F; the remainder of the
tappets G are secured directly to the tappet shaft. The outer face of the sleeve B
D

page_text: is formed with claws which gear with corresponding claws on the clutch H, when
such clutch is brought into gear by the lever J, mounted on the bracket K on the
outer frame L, and a key or feather M, is fitted to the tappet shaft A, which causes
the clutch H to revolve with the tappet shaft; thus the process of connecting or
starting and disconnecting or stopping the whole of the tappets, actuating the
healds carrying the pile warp, and thereby starting or stopping the formation of
pile is effected by simply throwing the clutch H in or out of gear by means of the
lever J.
Figures 3, 4 and 5 shew the method of automatically throwing the pile warp
tappets in and out of gear with the tappet shaft and at the same time starting and
stopping the rollers delivering the pile warp. N is a metallic disc or division plate
fixed on the shaft R, and connected to the tappet shaft A by the pair of mitre
wheels S and the cog wheels U, V, W and X; the wheels V and W are change
wheels by which the relative speed of the tappet shaft A and the division plate N
is regulated. The horizontal slide Y working in the bearings Z as a reciprocating
motion imparted to it by the pins P held in the annular row of holes O in the
division plate N by the set screws Q such pins projecting from both sides of the
division plate and consecutively coming in contact with the adjustable inclines A¹
fixed on opposite sides of the slot in the horizontal slide Y; the time of the strokes'
being regulated by the speed of the division plate and the number of pins
projecting therefrom.
The pile warp delivery rollers H¹ are driven by the wheel K¹ on the shaft L₁
such wheel receiving motion from the pinion M¹ the face of which pinion is formed
with clutch teeth corresponding to the teeth on the clutch G¹ and the wheel C₁ on
the clutch is connected by gearing with the main shaft of the loom. The slide Y
is connected to the clutch lever J by the connecting rod B¹ and to the clutch G₁
by the levers E¹ and D¹ mounted on the rocking shaft F1 thus at each stroke of
the slide Y the clutches H and G₁ are simultaneously thrown in or out of gear and
the tappets D and delivery rollers H¹ started or stopped thereby forming alternate
stripes of pile and plain cloth the width of which stripes is regulated by the time
of the strokes of the slide Y.
•
Figures 6, 7 and 8 illustrate our arrangement for weaving alternate diagonal
checks of pile and plain cloth in which case it is necessary to arrange the pile warp
in stripes (their width being regulated by the size of the proposed checks) and use
two pile warp beams alternate stripes of the pile warp being wrapped on each and
an independant pair of delivery rollers (H and H) and set of healds is required
for the pile warp on each of the warp beams. Separate sets of tappets D and D2
actuate such healds and they are mounted on the loose sleeves B and B on the
tappet shaft A and alternately actuated by the clutch H fitted between them, it
being operated by two sets of pins P in the double row of holes O in the division
plate N, the inner row in each case throwing the clutch H out of gear with the
sleeves B and B2, and the outer row of pins putting it in gear with the sleeves
alternately. The two pair of pile warp delivery rollers are also actuated in con- .
junction with the tappets D and D' the clutch G' being operated simultaneously
with the clutch H and put alternately in gear with the pinions M and M³ thereby
actuating one of the pairs of delivery rollers H' or H2 delivering the pile warp to
the healds that are then put into operation. N' is a stud wheel for transmitting
the motion of the pinion M³ to the pinion K³ on the shaft L³ of the second pair of
delivery rollers H.
+)
"
Having now particularly described and, ascertained the nature of our said.
Invention and in what manner the same is to be performed we declare what we
claim is
(1.) In looms for weaving pile fabrics, simultaneously connecting and simul-
taneously disconnecting with the tappet shaft the whole of the tappets actuating
the healds carrying the pile warp, substantally as and for the purpose specified.

page_text: (2.) In loonis for weaving pile fabrics, automatically and systematically connecting
and disconnecting the whole, or a portion of the tappets actuating the healds
carrying the pile warp, substantially as herein shewn and described and for the
purpose specified.
(3.) In looms for weaving pile fabrics, automatically stopping, and starting, the
delivery of all or part of the pile warp, substantially as herein shewn and described
and for the purpose set forth,