Improvements in or relating to Loom Pattern Mechanism.
Year: 1889

page_text: Date of Application, 4th Apr., 1889
Complete Specification Left. 1st Jan., 1890--Accepted, 8th Feb., 1890
PROVISIONAL SPECIFICATION.
[Communicated from abroad by PAUL PINON and LOUIS GUÉRIN, 40, Rne Pascal,
Paris, France, Engineers.]
Improvements in or relating to Loom Pattern Mechanism.
I, WILLIAM EDWIN HEYS of 70 Market Street Manchester in the County of
Lancaster, Patent Agent, do hereby declare the nature of this invention to be as
follows:-
Those Improvements are applicable to looms for weaving heavy or light cloths and
provided with either drop or circular shuttle boxes and they are applicable for the
purpose of controlling the shuttle boxes and the shedding and picking motions.
The apparatus constructed according to these Improvements is set in motion
by a crank or excentric on the first motion shaft. The crank or excentric is
connected by a suitable rod to two T levers the outer members of which com-
municate motion through rods or arms to two knives in such a manner that the
two knives reciprocate simultaneously in opposite directions. Each of the knives
makes a complete double stroke for each rotation of the crank and they are employed
for operating the shedding motion. Upon a shaft having a step by step motion (one
step for each pick), there is mounted a rose having six nipples, and a chain of friction
rollers of various diameters. There engage with the chain of friction rollers, booked
levers which are raised and depressed by the motion of the rollers. The rose shaft
projects beyond the framing so as to receive a socket provided with a double rose and
a chain of rollers similar to but smaller than the before described chain of rollers.
this smaller chain of rollers there rest five levers which are connected at their lower
end to draw rods encased by spiral springs and connected at their opposite ends to
flat hooks. The draw rods and hooks communicate withfive T levers, the first pair of
which give the motion to the shuttle boxes on the right, the second pair to the boxes
on the left, and the fifth controls the picking motion.
On
On the other hand, a blade terminated by a carrier receives a vertical reciprocal
motion from a cam or cogged shaft. In the carrier is a movable plate arranged so as
to be in contact with the hereinbefore described hooks so as to lift them in its
ascent.
When the loom is set in motion, the hooked lever which engages with the friction
rollers in front of the loom engages with the nipples and produces an intermittent
motion in the rose shaft; and, just as the treadles by the difference in diameters of the
chain of friction rollers; raise or lower the healds, so also are the levers which rest on
the rollers raised and lowered according as they cause the hooks on the movable plato
against which they always strike, to advance or recede. At each movement of the
hooked lever the movable plate in the carrier advances towards the books and takes
away with it the hooks communicating with the larger chain of rollers. The hooks
carry away with them those parts of the apparatus to which they are connected,
consequently the T levers, quickly describing a semicircle, indirectly transmit motion
to the shuttle boxes or fly cords. In falling, the movable plate slips the hooks, which
then fall back upon the supporting bar which acts as a slide bar for them and they
thus.communicate an inverse motion to the shuttle boxes and fly cords.
When it is desired to unweave, or when it may be required for any other purpose,
the movable plate may be put out of action by placing a small crank on its dead centre.
The fly cords and shuttle boxes then cease to be operated. The means by which the
movable plate is put out of action consists of a small crank which is connected to the
hooked fork in front of the loom; when the crank is placed on its dead centre,

page_text: the lower hook of the fork acts upon the nipples and causes the rose shaft to rotate in
the reverse direction whilst an impetus is given to a vertical balance which displaces the
movable plate. The movable plate bas at its upper end a projection which engages
with a slot in the vertical balance.
WILLIAM E. HEYS.
COMPLETE SPECIFICATION.
Improvements in or relating to Loom Pattern Mechanism.
1, WILLIAM EDWIN HEYS of 70 Market Street Manchester in the County of
Lancaster, Patent Agent, 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 :-
These Improvements are applicable to looms for weaving heavy or light cloths and
provided with either drop or circular shuttle boxes, and they are applicable for the
purpose of controlling the shuttle boxes and the shedding and picking motions.
I will describe my Invention with reference to the accompanying drawings in
which Fig. 1 is a side view and Fig. 2 a front view. Fig. 3 is a diagrammatic view.
In each of the Figures only so much of the apparatus and of the contiguous parts of
the loom are shewn as are necessary for their full description.
An apparatus constructed according to these Improvements derives its motion from
a crank or excentric A on the crank shaft. The crank A is connected by a suitable
rod to the lever B the outer members of which communicate motion through the
rods to two knives in such a manner that the two knives reciprocate simultaneously
in opposite directions. Each of the knives makes a complete double stroke for each
rotation of the crank or excentric A and they are employed for operating the shedding
motion.
The rose shaft R projects beyond the framing and carries the double rose R¹ gearing
with a pattern chain consisting of a series of small bowls or rollers g' g' against which
rest the levers 1, 2, 3, 4, and 5. These levers are connected by means of rods enclosed
in spiral springs t t to the flat hooks D D of which also there are five. The flat
hooks Daro pivoted to a bracket or support 6 and are connected to the levers e¹ e² e³ et es.
by means of suitable rods sliding in the support b. The levers e e² give the
motions to the shuttle boxes on the right, the levers e et give similar motion to the
boxes on the left and the lever e controls the picking motion.
The motion of the pattern chain g' is derived from the fork F (Fig. 3) which bas
a step by step motion each step corresponding with one pick. The points of the fork
are provided with hooks capable of engaging with the rose above or below, so that
when the hook above the rose is in engagement the pattern chain will be moved in
one direction, and when the hook below the rose is in engagement the chain will be
moved in the opposite direction.
When the rose shaft R is in motion, the consequent movement of the rollers g¹ g¹
slightly displaces the levers -1, 2, 3, 4, and 5, causing them to move through a small
are (as determined by their dimensions) around their centres o. This movement is
transmitted to the flat hooks D D by means of the rods tt' which consequently describe
small arcs around their centres a.
Behind the hooks D D there is mounted so as to be capable of vertical reciprocation,
a cast iron rod L which carries at its upper end a trough f in the bottom of which
there is hinged or pivoted a rectangular plate P. The lower end of the rod L has
mounted upon it a friction bowl E which rides upon a duplex cam d so that the rod L
reciprocates twice for each rotation of the cam shaft. The rectangular plate P is
constructed and arranged so that when at rest it is almost in contact with the
hooks D D.
Assuming the loom to be in motion, the ascending plate P engages with and lifts.

page_text: such of the hooks D D as may be pressed forward to engage with it; the lifting of
the hooks causes the rods to which they are connected and the levers el e² et et e
which in their turn (through and by means of the ordinary mechanism of the loom)
operate the shuttle boxes and the motions of the picking sticks. When the plate P
descends, the hooks are freed and fall by their own weight so far as they are permitted
to do so by the support b. This reversed motion of the hooks imparts also a reversed
motion to the levers e¹ e e e e and consequently also to the shuttle boxes and
picking motion.
In Fig. 3 n is a crank controlled by a handle and connected by a series of levers
with the devices controlling the shuttle boxes and blades and with the regulation of
the boxes and picking sticks. When at rest the crank n is always on one of its dead
centres. If it be turned from left to right as indicated by the arrow, the opposite
hook of the fork F engages with the rose and turns it in the reverse direction. By
the same motion the rectangular plate P is moved into the direction indicated by the
dotted lines Fig. 1, so as to be incapable of engaging with the hooks D D. This
displacement of the plate P is effected by means of a pin on one side of the plato
engaging with a slot u formed in the rod p pivoted at so that when the rod p is
moved by the movement of the crank n, the plate also is moved as before described.
It will be evident from the described construction that the return or backward motion
of the pattern devices and of the shuttle boxes is simultaneous and similar.
When it is desired to unweave, the operative turns the crank a as hereinbefore
described when, assuming the loom to be in motion, the motion of the pattern chain
is reversed but neither the shuttle boxes nor the pickers are operated because the
plate P is moved out of gear with the hooks D D. When it is desired to resume
direct weaving it is necessary only to restore the crank n to its normal position.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is,
(1) The loom pattern mechanism constructed arranged and operated substantially
as and for the purpose hereinbefore described and as illustrated by the accompanying
drawings.
(2) The combination and arrangement of a pattern chain, levers in contact therewith,
vertical hooks connected to the levers, a vertically reciprocating pivoted plate
engaging with the hooks, and levers connected respectively with the shuttle boxes,
picking motions and with the hooks, and a crank the displacement of which will put
the plate out of contact with the hooks and reverse the motion of the pattern chain ;
substantially as hereinbefore described and as illustrated by the accompanying
drawings.
Dated this 30th day of December A.D. 1889.