An Improved Automatic Stop-motion, Applicable for Jacquard Machines Used in Connection with Looms for Weaving and with Lace Making and other Machinery.
Year: 1888

page_text: An Improved Automatic Stop-motion, Applicable for Jacquard
Machines Used in Connection with Looms for Weaving and with
Lace Making and other Machinery.
We, BENJAMIN GREEN, Overlooker, BERNARD GREEN, Manufacturer, and CHRIS-
TOPHER BARKER, Overlooker, all of Glusburn, Crosshills, (via Leeds) in the. County
of York, do hereby declare the nature of this invention that is to say to be as follows:-
It relates to an improved automatic stop-motion applicable for double
cylinder Jacquard machines used in connection with looms for weaving by
the employment of which damage to the work being done in the loom, incident to
one set of pattern cards ceasing to work in concert, or as desired relatively, with the
other, is entirely avoided.
As is well known when two pattern cylinders are used in connection with a
Jacquard machine, one of said cylinders is made to operate so that its cards will
indicate for one lift while the other will operate for its cards to indicate at
the other lift, so that the design to be woven is to be placed upon both sets
of cards.
Now the object of our invention is attained by making use of two of the upright
or lifting needles in the machine, said two needles being joined together by a neck-
band in the manner and for the purposes well known, one of these lifting needles
being operated by one indicating cylinder and the other by the other, through the
medium of other parts well understood.
These lifting needles are joined by suitable lever and rod or other connections to
the usual belt shipping mechanism applied to the loom, in such a manner that when
the pattern cards are made to indicate so as to place either one or the other of said
lifting needles into connection with its lifting bar or knife, the motion of the loom is
thereby arrested, in this manner rendering it necessary for these lifting needles
to be kept clear of such lifting bar in order to allow the loom to continue in
motion.
By the employment of supplementary means for operating or indicating upon the
lifting needles at certain prearranged intervals such as at alternate times or in other
"

page_text: words said means being arranged to prevent each of the needles from engaging with
its lifting bar at one time and the pattern mechanism accomplishing the same at
the other time, it will readily be seen that should any disarrangement occur in
either one
or the other of the pattern mechanisms it will fail at its proper
time to indicate upon the lifting needle and so the motion of the loom will be
arrested.
Our arrangement of supplementary means as above described, consists of mounting
a suitably shaped bell-cranked lever, in such a manner that its outer end, in which a
suitable loop or opening is made, may lay loosely hold of the upright needles so
that as said lever is caused to oscillate by being coupled to suitable crank mechanisms
which are rotated or driven at a proper speed relatively with that of the pattern
cylinders, one or the other of these upright needles may be moved at the desired
time in order to be clear of its lifting bar as will be well understood.
Suitable ratchet and catch mechanisms are used in connection with the above
described lever arrangement for arresting the motion of the loom in order that when
said motion is arrested, for the reasons and by the mechanism above described, it
may not be again put into operation until the disarrangement causing its stoppage
has been rectified.
Although our invention has been herein before described as being in connection
with a loom, it will readily be understood that by a slight modification it may be
applied to Jacquard machines used in connection with lace making or other
machines.

page_text: An Improved Automatic Stop-motion, Applicable for Jacquard
Machines Used in Connection with Looms for Weaving and with
Lace Making and other Machinery.
We, BENJAMIN GREEN, Overlooker BERNARD GREEN, Manufacturer, and CHRIS-
TOPHER BARKER, Overlooker, all of Glusburn, Crosshills, (via Leeds) in the County of
York, 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 an improved automatic stop-motion applicable for double cylinder
Jacquard machines used in connection with looms for weaving as also
in connection with lace-making and like machines, by the employment of which,
damage to the work being done or goods produced in or by said looms or machines,
incident to one set of pattern cards ceasing to work in concert or as desired
relatively with the other is entirely avoided.
Such being the nature and object of our said invention in order that same may be
moro readily understood, we have hereunto appended a sheet of drawings illus-
trative thereof, to which by figures and letters, reference is made in the following
description.
Fig. 1 is part sectional end elevation of a loom and Jacquard machine, having
our improved parts arranged in connection therewith.
Fig. 2 is a detail drawing enlarged scale of parts hereinafter described. Fig. 3 is
top view of a portion of a loom shewing parts hereinafter referred to.
Similar letters of reference indicate similar parts throughout the several views.
As is well known when two pattern cylinders a bare used in connection with a
jacquard machine, one of said cylinders is made to operate so that its cards will
indicate for one lift while the other will operate for its cards to indicate at the other
lift, in this manner necessitating the design to be woven, being placed upon both sets
of cards a¹ 61.
The object of our invention is attained by making use of the upright or lifting
needles c, d, the same being joined together by a neckband e to operate in the
manner and for the purposes well known, and the needle c being operated in usual
way by the pattern cards a¹ on cylinder a, while the needle d is operated in a similar
manner by the cylinder 6 through the medium of the cards a¹ 6 and the horizontal
wire ff' respectively.
These needles c d are joined by the neckband e and the cord g to the lever h; the
outer end of which is made to operate in connection with the handle h² (said
handle being the one to and by which the belt-fork or belt-shipper is attached and
operated, for the purpose of arresting the motion of the loom or placing same into
operation in the manner common and well understood) in such a manner that when
the pattern cards a¹ or b¹ are made to indicate so as to place either one or the other
of said needles c or d into connection with its lifting bar or knife k or k¹ the motion
of the loom is thereby arrested, in this manner rendering it necessary for these
needles c d to be kept clear of such lifting bars k k₁ respectively in order to allow
he loom to continue in motion. And these said needles might be kept clear by their
espective pattern cards.provided their pattern surface was arranged so to do, as by
being left blank, however to attain the object desired, we arrange the said pattern

page_text: surface in such a manner as by having each alternate card blank and cut,
that it will only accomplish said act of operating the needles at alternate times,
necessitating other supplementary means being used to accomplish said operation at
the other time.
Now by the employment of supplementary means for operating or indicating upon
the needles c d at certain pre-arranged intervals such as at alternate times,
or, in other words said means being arranged to prevent each of the needles cd
from engaging with its lifting bar k or at one time and the pattern
mechanism or pattern cards a¹ or 61 accomplishing the same at the other time as
above described, it will readily be seen that should any disarrangement occur in
either one or the other of the pattern cards a¹ or b₁ it will fail at its proper time to
indicate upon the lifting needle c or d and so the motion of the loom will be arrested.
Our arrangement of supplementary means above referred to, consists of mounting
upon the framework of the Jacquard machine, the bell cranked lever which is of
appropriate form in such a manner that its outer end l', in which is made a loop or
opening as shewn by detail drawing, fig. 4 may lay loosely hold of the needles c d
so that as said lever 7 is caused to oscillate, (by being coupled to the crank wheel m
with the rod m² being rotated or driven by the wheel m₁ mounted upon the loom's
shaft o, and the said wheels m¹ and m being of proper relative sizes so that the lever /
is oscillated thereby at the desired times relatively with the movements of the
cylinders a and b) one or the other of these needles cor
may be thereby moved at
the desired time in order to be clear of its lifting bar k or k as will be well under-
stood, the needle d in fig. 1 being shewn as being kept clear of its bar ¹ by means
of the pattern card 6', while the needle c is shewn as being kept clear of its bar k
by means of the lever 1, and at the next operations of these needles their method of
operation will be changed, or in other words the cylinder a will be presenting its
cards a to keep the needle c clear of the bark while the lever 7 will be operating
the needle d as above described.
Upon the lever is mounted the ratchet p, which, when said lever is raised for the
purpose of arresting the motion of the loom as herein before described, engages with
the hook so that by these means the loom cannot be again put into operation until
the disarrangement causing its stoppage has been rectified.
Although we have herein before only described our invention in connection with a
loom, yet it will readily be understood that same may be applied to Jacquard
machines used in connection with lace-making knitting or other machines, since the
objects in connection therewith to be obtained are identical.
Having now particularly described and ascertained the nature of our said Invention,
and in what manner the same is to be performed, we declare that what we claim is :-
1. The lever formed as described, means for operating said lever as set forth,
the needles ed, bars k k¹, lever and the mechanism for putting the machine or
loom into operation, in combination, the same being arranged to operate substantially
as specified.
2. The lever means for operating same, the needles cd, the lever h, ratchet P,
hook and handle lever 2 in combination the same being constructed and arranged
to operate substantially as set forth.
TY
יה.
111
וי
1000