Improvements in Letting off Mechanism of Looms for Weaving.
Year: 1897

page_text: Date of Application, 3rd May, 1897
Complete Specification Left 3rd Foh 1898-Accented
5th Mar
1808
PROVISIONAL SPECIFICATION.
Improvements in Letting off Mechanism of Looms for Weaving.
I, GEORGE HODGSON, of Bee Hivo Works, Bradford, in the County of York,
Machine Maker, do hereby declare the nature of this invention to be as follows:-
This invention relates to warp letting off regulating apparatus wherein toothed
wheels and opposing catches together with an intervening shield are employed
whereby the delivery of yarn is controlled, such appliance whilst effective for
certain class of weaving is not reliable in the weaving of goods wherein relatively
very few picks are put in within a defined space, because the apparatus is not
sufficiently sensitive and quick enough in its action.
Now this invention consists of the application and employment, in combination
with the appliances as above referred to, of an additional shield intervening between
the ordinary shield and the catches, and the supplementary shield is combined
with and connected to the reversing mechanism by links and levers, so as to
reverse the card cylinder and stop the picking and prevent any further action of
the catch upon the teeth of the letting off wheel, and thereby prevent any uneven
or defective weave in the piece as heretofore.
Dated this 1st dov of Nov 1807
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax, Agents for the Applicant.
тргоѵещецов тек он месцатьш оI 20005 100
•
I, GEORGE HODGSON, late of Bee Hive Works, Bradford, and now of Shipley
Fields Mill, Frizinghall, Bradford, in the County of York, Machine 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 warp letting off regulating apparatus wherein toothed
wheels and opposing catches together with an intervening shield are employed
whereby the delivery of varn is controlled, such appliance whilst effective for
certain class of weaving is not reliable in the weaving of goods wherein relatively
very few picks are put in within a defined space because the apparatus is not
sufficiently sensitive and uick enough in its action.
The object of the present invention is to so construct such "letting off"
apparatus that the same will be put out of operation at the same time that the

page_text: card cylinder or ordinary shedding mechanism is reversed so that uneven or
defective weave is obviated.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the annexed drawings, in
which:
Fig. is an end elevation of the ordinary letting off" motion with my
improvements applied thereto.
Fig. 2 is a side view of Fig. 1.
"
According to this invention at 1 is the ordinary letting off" shaft, and at 2–2
are the ratchet wheels fixed thereon, their teeth being in reverse directions. At 3
is a lever or arm mounted on the shaft I and its upper or free end carries a stud 4
on which are mounted the operating catches 5-5 one engaging with each wheel 2
as the bracket and its catches are oscillated or rocked in the ordinary manner
by one end of the bracket 3 being by link 6 connected' to 'the slay or going part
of the loom.
At.7 is the ordinary shield mounted on the arm 8 and by link 9 operated from
the back roller lever by being connected thereto as ordinary. At 10 is the
additional shield also mounted on an arm II connected by link 12 to the ordinary
reversing link or lever, or other part of the reversing mechanism.
The shield 7 operates in the usual manner being moved under one or other of the
catches 5-5 according to the weight or pressure of the warns on the back roller.
In the event of the shedding mechanism or loom being reversed at the time
this operation is performed, the link 12 connected to such mechanism will at once
actuate the additional shield 10, and the latter is moved under the catches 5-5
and between the latter and the wheels 2-2 which consequently remain inoperative,
the letting off" apparatus being put out of action simultaneously with the
reversing.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, 1 declare that what I
claim is:-
The letting off" mechanism herein described combined with an additional
shield 10 mounted on an arm or lever 11 connected with and controlled by the
ordinary reversing mechanism.as and for the purpose herein, described and sub-
stantially as illustrated by the accompanying drawings.
Ր
1
1000
GEORGE HODGSON,
By his Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax,
1000
Dated this 2nd day
GEORGE HODGSON,
By his Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax,