Improvements in Drop Box Looms.
Year: 1889

page_text: Date of Application, 17th Jan., 1889
Complete Specification Left, 11th Oct., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Drop Box Looms.
I, GEORGE HERBERT HODGSON of Bee Hive Works. Thornton Road, Bradford in
the County of York, Loom Maker, do hereby declare the nature of this invention to be
as follows:-
This invention relates to an improved construction, arrangement, and combina-
tion of parts of mechanism for operating the rising and falling shuttle boxes of
looms for weaving and comprises an improved construction of compound levers
for transmitting the motion to the box rod and for treading up the boxes when
necessary.
According to this my invention I employ a system of looped internal toothed lovers
and disc wheels the looped levers being under the control of card or pattern mechanism.
The dise wheels by a link impart a rocking motion to compound levers which are
connected by an elongated hollow boss or long collar, thereby any tendency for the
said levers to twist on their working studs is prevented and wear in its effect, as to
the twisting of such levers, is inappreciatable. A rod connects a compound lever with
the pendent arm of a double or broken backed lever, the bosses of which are on the
same stud, and by means of a tension spring, recesses, and a holding pulley, the parts
of this lever are retained in position so long as there is no obstruction to the free
working of the loom. Should any obstruction arise, the retaining spring is overcome,
and the pulley is forced out of its holding notch, the lever thus being seperated
prevents breakage. That portion of the lever which lifts the boxes has an extended
arm from the end of which is a link connected with the lower end of the box rod,
which it raises through guides, from box to box as indicated from the card or patternu
barrel. The lever last referred to has an outer arm or treadle by means of which the
power of the retaining spring is overcome on pressure of the foot being applied and
the box operating part of the lover is moved so as when the loom is stationary to
tread up the boxes without occasion to move any other part of the loom.
Dated this 16th day of January 188a
WALTER BRIERLEY,
Town Hall Buildings, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Drop Box Looms.
I, GEORGE HERBERT HODGSON of Bee Hive Works, Thornton Road, Bradford in the
County of York, Loom Maker, 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 relates to an improved, construction, arrangement, and combination
of parts of mechanism for operating the rising and falling shuttle boxes of looms for
weaving and comprises an improved construction of compound levers for transmitting
the motion to the box rod and for treading up the boxes when necessary.
According to this my invention 1 employ a system of looped internal toothed levers
and disc wheels the looped levers being under the control of card or pattern
mechanism. The disc wheels by a link impart a rocking motion to compound levers
which are connected by an elongated hollow boss or long collar, thereby any tendancy
for the said levers to twist on their working studs is prevented and wear in its effect,
as to the twisting of such levers, is inappreciable.
A rod connects a compound lever with the pendant arm of a double or broken
backed lever, the bosses of which are on the same stud, and by means of a tension

page_text: spring, recesses, and a holding pulley, the parts of this lever are retained in position
so long as there is no obstruction to the free working of the loom. Should any
obstruction arise, the retaining, spring is overcome, and the pulley is forced out of its
holding notch, the lever thus being separated prevent breakage. That portion of the
lever which lifts the boxes has an extended arm from the end of which is a link con-
nected with the lower end of the hox rod which it raises through guides, from box to
box as indicated from the card or pattern barrel. The lever last referred to has an
outer arm or treadle by means of which the power of the retaining spring is overcome,
on pressure of the foot being applied and the box operating part of the lever is moved
50 as when the loom is stationary to tread up the boxes without occasion to move any
other part of the loom.
:-
Such being the nature and object of my invention, the following is a complete
description of same reference being had to the accompanying drawings in which:-
Fig. 1 is a-side elevation of appliances for operating the rising and falling shuttle
boxes of looms for weaving.
Fig. 2. is an end view of the compound levers.
The remaining Figs. on sheet 1 and 2 are details, drawn to an enlarged scale.
According to this my said invention I employ a system of looped internal toothed
levers 1, and disc wheel 2 operated by the said levers 1 which are under the control of
the pattern mechanism.
The disc wheels 2 by link 3 impart a rocking motion to componnd levers 4 which
are mounted on a stud 5 in the loom frame, and are connected to each other by elon-
gated hollow bosses or long collars 6 and thereby any tendancy for the said levers 4
to twist on their working studs 5. 7 is prevented and wear in its effect as to the
twisting of such levers in inappreciable. A rod 8 connects the compound lever 4 with
the pendant armi 9 of a double or broken backed lever 10. 11 the bosses 12. 13.of
which levers 10. 11 are on the same stud 14, and by means of a tension spring 15
recess 16, and holding pulloy 17 the parts of the levers are retained in position so
long as there is no obstruction to the free working of the loom.
Should any obstruction arise the retaining spring 15 which holds the pulley 17 in
the recess 16 is overcome, and the pulley 17 is forced out of its holding notch 16 the
levers 10 and 11 thus being separated prevents breakage. That portion of the lever 10
which is attached to and lifts the boxes 18 has an extended arm 19 from the end of
which is a link 20 connected with the lower end of the box rod 21, which it raises
through guides from box to box as indicated from the card or pattern barrel.
The lever 10 last referred to has an outer arm or treadle 22 by means of which the
power of the retaining spring 15 is overcome, on pressure of the foot. being applied
and the box operating part 19 of the lever 10 is moved so as when the loom is
stationary to tread up the boxes 18 without occasion to move any other part of the
loom.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:
1). The compound levers 4 rod 8 double or broken backed levers 10. 11 constructed,
as and for the purpose herein set forth, and all in combination as herein described and
as illustrated by the annexed drawings.
2). The levers 10 and 11 tension spring 15 recess 16 holding pulley 17 and its
carrying rod and treadle 22 all in combination and constituting the broken backed
lever as herein set forth and substantially as illustrated by the annexed drawings.
Dated this 10th day of October 1889.
GEORGE HERBERT HODGSON.
By his Agent, Walter Brierley,
Central Chambers, Halifax.