Improvements in Mechanism for Actuating the Healds and Shuttle Boxes in Looms for Weaving.
Year: 1897

page_text: Date of Application, 11th Nov., 1897
Complete Specification Left, 11th Aug., 1898-Accepted, 17th Sept., 1898
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Actuating the Healds and Shuttle
Boxes in Looms for Weaving.
We, ROBERT WHITEHEAD, of Beswicks, Delph, Loom Tuner, and JOHN MUSKETT,
of Co-operative Houses, Dobcross, Blacksmith, both near Oldham, in the County
of York, do hereby declare the nature of this invention to be as follows:-
The invention relates especially to that class of looms known as the Holling-
worth & Knowles loom which is employed for weaving woollen goods, and is
applicable to that part thereof known as the "vibrator levers" which are con-
nected with the jack levers for actuating the healds, and shuttle boxes.
It has been found that in the course of working, the "vibrator levers" often
stick and fail to fall owing to one cause or another and thus causing faults in the
weaving in consequence of the right heald or box not being brought into position
at the proper time.
Our invention is intended to remedy this defect, and for this purpose we cause
these vibrator levers to have a positive and automatic pull or thrust given to them
which may be effected in a variety of ways either by springs or weights.
We prefer however to use the following means which we have found to be
the simplest and most effective.
Conveniently situated immediately below the "vibrator levers," we fix a rod or
bar (preferably square in section) on which we place or fix horizontally a number
of steel spring fingers or strips (corresponding to the number of vibrator levers
working, acording to the pattern of cloth being woven).
The ends of these spring fingers may be hooked and are connected to the
"vibrator" levers by suitable connecting pieces which are suspended or hung
from each lever.
Thus a positive pull is given to each vibrator" lever at each "beat up" of the
loom which has a tendency to bring the same always into proper position thus
causing a better cloth to be produced or woven, and preventing the yarn from
being injured.
Dated this 10th day of November 1897
Improvements in Mechanism for Actuating the Healds and Shuttle
Boxes in Looms for Weaving.
We, ROBERT WHITEHEAD, of Beswicks, Delph, Loom Tuner, and JOHN MUSKETT,
of Co-operative Houses, Dobcross, Blacksmith, both near Oldham, in the County
Price Rd 1

page_text: 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:-
-
66
This invention relates especially to that class of looms known as the Holling-
worth & Knowles loom which is employed for weaving woollen goods, and is
applicable to that part thereof known as the vibrator levers" which are con-
nected with the jack levers for actuating the healds, and shuttle boxes.
It has been found that in the course of working, the vibrator levers" often
stick and fail to fall (on the withdrawal of a riser on the pattern chain) owing
to one cause or another, thus causing faults in the weaving in consequence of the
right heald or box not being brought into position at the proper time.
"
"
Our invention is intended to remedy this defect, and for this purpose we cause
these vibrator levers to have a positive and automatic pull or thrust given to them
which may be effected in a variety of ways either by springs or weights.
We prefer however to use the following means which we have found to be
the simplest and most effective, and of which we annex the acompanying drawings,
Fig. 1 being a side elevation of so much of a loom as is necessary to illustrate
our invention.
Fig. 2 is a transverse section of some of the vibrator levers and their connections.
Fig. 3 shews details of the improved connections hereafter described.
On Fig. 1a is the vibrator lever, a¹ the grate thereof, b the jack, c the pattern
chain acting beneath the vibrator levers as usual, and d d' the jacquard cylinders.
Conveniently situated immediately below the "vibrator levers
a, we fix a
rod or bar e (preferably square in section) on which we place or fix horizontally
a number of steel spring fingers or strips f (corresponding to the number of
vibrator levers a working according to the pattern of cloth being woven). We
prefer to crank the inner ends f* of the spring fingers or strips as seen at Figs. 1
and 3 so that when fitted on the bare they will hold thereon without screws rivets
or like fastenings.
The ends of these spring fingers f may be hooked as seen at Figs. 1 and 3 and
aro connected to the
vibrator" levers a by suitable connecting pieces which
are suspended or hung from each lever a.
Thus a positive pull is given to each vibrator" lever at each change of the
shedding motion, which has a tendency to bring the said lever always into proper
position when a riser on the pattern chain has been withdrawn, thus causing a
better cloth to be produced or woven, and preventing the yarn from being
injured.
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:-
The combination with the vibrator levers of looms such as Hollingworth &
Knowles looms, of springs or equivalent device for returning the said levers into
position by a positive pull or thrust substantially as herein before described.
Dated thin 10th day of tw 1900
GEO. DAVIES & SON,
Agents for the 'pplicants,
4, St. Ann's Square, Manchester.
GEO. DAVIES & SON,
Agents for the 'pplicants,
4, St. Ann's Square, Manchester.