Improvements in and relating to Jacquard, Dobby, and Circular-box Looms.
Year: 1892

page_text: Date of Application, 8th Feb., 1892
Complete Specification Left. 14th Apr., 1892-Accepted, 14th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Jacquard, Dobby, and Circular-box
Looms.
We, HARTLEY RUSHTON of Calder Mill, Waterside, Colne, in the County of
Lancaster, Manufacturer, and THOMAS BLADES of the same place, Overlooker, do
hereby declare the nature of this invention to be as follows:-
This invention consists firstly of an improved means for automatically arresting
the motion of the pattern cylinder of dobbies, and jacquards, and also for reversing
the motion, say to the extent of one tooth of the ratchet wheel of the said cylinder
by the action of the stop-motion, when the weft is broken or run out, so as to rectify
the loss of pattern from the time of the breakage of the weft to the stoppage of the
loom by the stop motion.
For these purposes, two actuating catches may be employed, capable of acting
one on each side of the ratchet or pegged wheel of the pattern cylinder, and
connected together by a link.
In close proximity to the weft fork lever is an arm connected to a rocking shaft,
to which is attached a lever, connected by a rod to another lever, projecting under
the ordinary actuating catch. On the absence or breakage of the weft, the weft
fork lever bears against the said arm, and, through the medium of the levers and
rocking shaft above described, raises the actuating catch out of contact with the
ratchet, and at the same time by the aid of the connecting link brings the opposite
catch, previously out of contact with the ratchet, into action to reverse the motion.
The next part of this invention relates to circular-box looms, and is designed to
prevent two or more shuttles from following each other into the shed, when one is
trapped in front or behind the weft grid. For this purpose; we employ a suitable
prop, which is pushed under the feelers or indicating levers of the pattern cylinder,
so as to raise them, out of contact with the said cylinder by means of a finger, fixed
to the stop-rod or other moving part of the loose reed motion, when the shuttle is
trapped.
Dated this 6th day of February 1892.
THOS. RICHMOND,
Agent.
COMPLETE SPECIFICATION.
Improvements in and relating to Jacquard, Dobby, and Circular-box
Looms.
We, HARTLEY RUSHTON of Calder Mill, Waterside, Colne, in the County of
Lancaster, Manufacturer, and THOMAS BLADES of the same place, Overlooker, 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:
This invention consists firstly of an improved means for automatically arresting
the motion of the pattern cylinder of dobbies and jacquards, and also for reversing
the motion say to the extent of one tooth of the ratchet wheel of the said cylinder
by the action of the stop-motion, when the weft is broken or run out, so as to
rectify the loss of pattern, from the time of the breakage of the weft to the
stoppage of the loom by the stop-motion. For these purposes, two actuating
catches may be employed capable of acting one on each side of the ratchet or
pegged wheel of the pattern cylinder, and connected together by a link.

page_text: In close proximity to the weft-fork lever is an arm connected to a rocking shaft,
to which is attached a lever connected by a rod to another lever, projecting under
the ordinary actuating catch. On the absence or breakage of the weft, the weft
fork lever bears against the said arm, and through the medium of the levers and
rocking shaft above described raises the actuating catch out of contact with the 5
ratchet, and at the same time by the aid of the connecting link, brings the opposite
catch, previously out of contact with the ratchet into action to reverse the motion.
The next part of this invention relates to circular box looms, and is designed to
prevent two or more shuttles from following each other into the shed when one is
trapped in front or behind the weft-grid. For this purpose, we employ a suitable 1
prop, which is pushed under the feelers or indicating levers of the pattern cylinder,
so as to raise them out of contact with the said cylinder by means of a finger fixed
to the stop-rod or other moving part of the loose reed loom, when the shuttle is
trapped.
In the accompanying drawings, Fig. 1 is a front elevation, and Fig. 2 an end 1
view of a power loom, constructed in accordance with our invention. A represents
the ordinary actuating catch of a dobby, jointed to the vibrating arm B. This
catch engages with the teeth of the ratchet wheel C, secured to the arbor D¹ of the
pattern cylinder D in the ordinary manner. To the opposite end of the vibrating
arm B is connected the upper end of the lever E by the connecting link E' whilst 2
to the lower end of the said lever is attached a catch link F, the hooked end of
which, when the weft is broken, engages with a ratchet wheel G (see Fig. 2) fixed
to the arbor D¹ of the pattern cylinder D. The teeth of this wheel are reversely
disposed to those surrounding the wheel C, so that in the event of the ordinary
actuating catch A being raised out of contact with the wheel C, on the absence or 2
breakage of the weft, it will necessarily engage the additional catch F with the
teeth of its respective ratchet wheel, and acting in a contrary manner to the catch A
will turn the pattern cylinder the reverse way to the extent say of one tooth of the
ratchet. For this purpose, a horizontal shaft I extends from one side of the loom
to the other, and to the said shaft at the fork side of the loom is attached a vertical
arm or lever J, projecting upwards above the weft fork lever K, to which it is
attached by the connecting piece L; on the opposite end of the horizontal shaft I
is fixed the arm or lever M, connected by the rod N to lever O. When the weft
fork lever is drawn forward on the absence or breakage of the weft to throw the
spring handle from its detent to stop the loom, it causes the horizontal shaft I to
partially rotate, depressing arm M, connecting link N, and one end of the lever O,
so as to raise the actuating catch A, by the other end of the said lever, whereby
the reversing catch F is made to engage with its respective wheel, thereby
reversing the motion of the pattern cylinder.
We are perfectly aware that the actuating catch A. of the pattern cylinder has
previously been raised by the action of the stop motion, with a view to prevent loss
of pattern in the fabric, but it will be obvious that one tooth at least of the ratchet
wheel of the pattern cylinder will have over-run the pattern in the fabric, after the
weft is broken, and before the loom is finally brought to a state of rest; but by
reversing the motion of the pattern cylinder in the manner described, the latter
will not require to be interfered with to find the pattern before setting on
the loom.
In describing the next part of our invention, P represents the sley of a loose reed
loom; the sley-cap; P2 the reed; P³ the back rib, which is connected to the
stop-rod Q by arms R to retain the reed in position during the beat-up of the weft
in the usual manner. To the stop-rod is secured the lever S with its lower end in
close proximity with the bent portion of the lever T, which is mounted on the
stud U. The upper end of the said lever is also bent so as to project under the
feelers or indicating levers V. When, therefore, the shuttle is trapped in the shed,
the reed is forced backwards, carrying with it the back rib, thereby depressing the
lower end of the lever S, and lower end of lever T, causing the upper end of
the latter lever to raise the indicating levers from the surface of the pattern

page_text: cylinder W, and arrest the further motion of the boxes. To retain the upper end
of the lever T in its elevated position a retaining catch X is used, and drawn under
the raised portion of the lever T by the action of the spring Y.
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 arrangement of mechanism for raising the catch A, of the pattern
cylinder and applying catch link F, to reverse the motion of the said cylinder
substantially as described for the purpose set forth.
2. The means or apparatus for arresting the motion of the boxes of circular box
looms, when the shuttle is trapped in the shed, substantially as described.
Dated this 12th day of April 1892.
THOS. RICHMOND,
Agent.