Improved Shuttle Operating Mechanism for Drop-box Looms.
Year: 1891

page_text: Date of Application, 15th Oct., 1891
Complete Specification Left, 15th July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
Improved Shuttle Operating Mechanism for Drop-box Looms.
We RICHARD LONGDEN HATTERSLEY of Keighley in the County of York,
Machine Maker, and SIMEON JACKSON of the same place Mechanic, do hereby
declare the nature of this invention to be as follows, that is to say :-
kr
It relates to the arrangement and combination of parts forming shuttle operating
mechanism for drop-box looms wherein what are known as sliding" picking-cams
or tappets are employed for operating the well known "over-pick" picking stick
or arm, when same is used in connection with drop-box mechanism consisting of
partly toothed crank wheels operated, when put into gear with continuously
rotating toothed segments as may be indicated, by the pattern surface of the
shedding motion.
The shedding motion levers controlled by its pattern surface are employed for
putting the shuttle box motion into and out of operation as is well understood,
and one crank wheel together with its necessary lever and rod connections all
mounted in proximity so as to operate in unison with this box operating mechanism,
is employed for sliding the picking cams or tappets thus putting same into and out
of effective operation.
These picking cams or tappets are mounted in the usual manner upon the low
shaft of the loom and their operating levers and rod connections are joined to the
before named crank wheel mechanism. And since said crank mechanism is positive
in its actions in both directions, suitable yielding spring-couplings are formed on
the connecting rods that join this mechanism to the levers operating the picking
cams so that provided, by accident or otherwise, these cams were rigidly held from
being moved by their levers, these yielding couplings would allow the crank
mechanism to operate thus avoiding breakages of or damage to any parts in the
operating mechanism.
To enable the throwing out of gear of the picking cams on the reversion of the
direction of motion of the several mechanisms of the loom, the handle rod, employed.
for effecting these reversions of motion, such as in that of the pattern surface of
the shedding mechanism, is coupled by lever shaft and chain connections in the
one case to a broken backed connecting rod, and in the other case to the crank
wheel motion so that by their conjoint movements both the picking cams are
withdrawn from their operating positions.
Dated this 14th day of October 1891
COMPLETE SPECIFICATION.
Improved Shuttle Operating Mechanism for Drop-box Looms.
We, RICHARD LONGDEN HATTERSLEY of Keighley in the County of York,
Machine Maker, and SIMEON JACKSON of the same place Mechanic, 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, that is to say:-
It relates to the arrangement and combination of parts forming shuttle operating
mechanisms for drop-box looms in connection with which mechanisms known as

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sliding" picking cams or tappets are employed for operating the well known
over-pick" picking stick or arm, when same is used in connection with drop-box
mechanism consisting of partly toothed crank wheels operated, when put into
gear, with continuously rotating toothed segments as may be indicated by the
pattern surface of the shedding motion.
In the accompanying sheets of drawings:
Figs. 1 and 2 are end and back elevations of a sufficient portion of a loom to
shew the application of our invention.
Fig. 3 is back view of a portion of a loom shewing the coupling up or joining
of the picking cam or tappet on one side of the loom to that on the other.
Fig. 4 is a top view of certain of the parts shewn by Fig. 3.
Fig. 5 is front elevation of a portion of the top part of a loom shewing parts
hereinafter described.
The shedding motion levers a, the movements of which are controlled by its
pattern surface, are employed for putting the shuttle-box motion into and out of
operation by putting the crank wheels into and out of gear with their toothed
segments c and d as is well understood, and one of these crank wheels & together
with its necessary lever and rod connections ef and g, all mounted in proximity so
as to operate in unison with the said box operating mechanism, is employed for
sliding the picking-cams or tappets and thus putting samne into and out of
effective operation. The picking cam h is shewn in all the figures as being in
position for striking the arin of the picking shaft m while the can k is shewn out
of position so that its path of motion is entirely clear of the arm on the
shaft m¹.
"
in
These cams and are mounted in the usual manner to slide upon a key or
feather on the low shaft n of the loom, and their operating levers op and and
rod connections rand s are joined to the before named crank wheel mechanism by
being coupled to the lever f. And since said crank mechanism is "positive
its actions in both directions, suitable yielding spring-couplings are formed on the
connecting rods and s, that coupling on the rod being effected by mounting
thereon the open spiral spring t between the fixed hoop u and the coupling piece v
into which piece the rod may slide when sufficient pressure is exerted to over-
come said spring t, while the coupling on the rods is effected by the spring w
being mounted thereon between the fixed hoop and the levers through a
projecting piece on which said rods freely slides when the pressure of the
spring is overcome, the opposite movements of the said parts to those by which
said springs are caused to yield, are carried into effect in the one case by the pin 1
coming into contact with the piece v, and in the other by the hoop 2 fixed on the
rods coming into contact with the projection on the lever that provided,
by accident or otherwise, these cams and k were rigidly held from being moved
by their levers o and p, these springs t and w would yield sufficiently to allow
the crank mechanism to continue in motion, the spring yielding when the
horizontal arm of the lever was moving upward, and the spring w yielding when
same was moving downward thus avoiding breakages of or damage to any parts in
the operating mechanism.
9, so
To enable the throwing out of gear of the picking cams hand k on the
reversion of-the-direction of motion of the several mechanisms of the loom, the
well known handle rod 11 employed for effecting-these-reversions of motion, such
as in that of the pattern surface of the shedding mechanism, is coupled by the
shaft 3 levers 4 and 12 and rod 5 to the broken-backed connecting rods or
levers 6 and 7 so that when said handle-rod causes the shaft 3 to rotate and
raise the rod 5 the levers 6 and 7 are moved into the position shown in broken
lines Fig. 2 by which means the lever o may be moved to throw the cam h out of
position without placing the cam k into position as would be the case if the
allowance by the movements of these levers 6 and 7 was not secured. As the
shaft 3 is rotated to operate the levers 6 and 7 as above described, it is arranged
so that at the same time it will wind up the chain and thereby raise the lever 10,

page_text: which is the intervening lever through which the motion of one of the shedding
motion levers a is imparted to the crank wheel used for automatically operating
the picking cams as hereinbefore described this rising of the lever 10 having the
same effect as is its rising when caused by said lever a such said effect being the
throwing out of gear of the cam so that at this time both of said cams are
withdrawn from their operating positions.
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. The combination and arrangement of means whereby the picking cams of a
loom are put into and out of operation substantially as specified.
2. In picking cam operating mechanism that derives its movements from motor
mechanism operated positively in both directions, the arrangement of yielding
springs substantially as hercin set forth and for the purpose described.
3. In picking cam operating mechanism, means substantially as herein described
for disengaging same as set forth.
R. L. HATTERSLEY,
S. JACKSON,
Per Samuel Hey,
Agent.
Come in Con
T
R. L. HATTERSLEY,
S. JACKSON,
Per Samuel Hey,
Agent.