Improvements in Dobbies of Looms for Weaving.
Year: 1888

page_text: Date of Application, 7th Nov., 1888
Complete Specification Left, 7th Aug., 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Dobbies of Looms for Weaving.
1, ARTHUR SOWDEN of Spring Field House, Baildon in the County of York,
Machine Maker, do hereby declare the nature of this invention to be as follows:-
This invention is designed for the purpose of steadying the jack levers and
preserving the same in true position by preventing the tendency to cant sideways the
above object I effect by the use of adjustable supporting plates constructed and applied
as follows.
On the side frames of the dobby and lever stand are two or more lugs in each of
which is a slot or a hole through which and extending across the dobby are two or
more chased or screwed bolts, on these bolts at convenient distances apart are guide
plates which stand between the jack levers and such plates being held by side nuts firmly
in a vertical position act as supports on the sides of the jack levers which are by such
plates prevented canting or getting out of their true working position.
The screwed bolts and nuts acting against the lags admit of the guide plates being
readily moved on their carrying bolts to any required position.
Dated this 6th day of November 1888
WALTER BRIERLEY,
Town Hall Buildings, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Dobbies of Looms for Weaving.
I, ARTHUR SOWDEN, of Spring Field House, Baildon 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 is designed for the purpose of steadying the jack levers and
preserving the same in true position by preventing the tendency to cant sideways
the above object I effect by the use of adjustable supporting plates constructed and
applied as follows
On the side frames of the dobby or lever stand are two or more lugs in each of
which is a slot or a hole through which and extending across the dobby are two or
more chased or screwed bolts, on these bolts at convenient distances apart are guide
plates which stand between the jack levers and such plates being held by side nuts
firmly in a vertical position act as supports on the sides of the jack levers which are
by such plates prevented canting or getting out of their true working position.
The screwed bolts and nuts acting against the lugs admit of the guide plates being
readily moved on their carrying bolts to any required position.
Such being the nature and object of my said invention the following is a complete
discription of same, reference being had to the accompanying drawings forming a
part of this specification.
Fig. 1. is a side elevation of one of the adjustable supporting plates, and part of one
of the "jack" levers.
Fig. 2. is an end elevation shewing part of dobby frame, or lever stand, and one of
the adjustable supporting plates, and "jack" levers in position.
Fig. 3. is a side elevation of dobby frame, or lever stand with supporting plate in
position carried on the screwed or chased bolts.
According to this my said invention, on the side frames 1. of the dobby or lever
stand are two or more lugs 2. 2. in each of which is a slot or a hole 3, through which
and extending across the dobby or lever stand, from side frame to side frame are the
[Price 6d1

page_text: chased or screwed bolts 4.4.
On these bolts 4.4 at convenient distance apart are the
guide or supporting plates 5. which stand between the "jack" levers 6 and the said
guide or supporting plates 5 are held in position by the side nuts 7. 7 and thus act as
supports on the sides of the "jack" levers 6 and thereby the latter are prevented
from "canting" or getting out of their true working position.
The screwed or chased bolts 4. 4 and the nuts 7. 7. acting against the guide or
supporting plates 5. admit of the latter being readily moved laterally on their carrying
bolts 4. 4 to any required position.
It will of course be obvious that the shape of the guide, or supporting plates 5 will
be modified in order that they will be adaptable to the varying forms of dobby frames,
or lever stands, but the form shown I have found suitable in practice in combination
with lever stands as herein shown.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
(1) The guide or supporting plate 5 with its frame 1 carrying and adjusting bolts,
and in combination with the "jack" levers 6, for purpose and substantially as herein
described.
ARTHUR SOWDEN.
By his Agent, Walter Brierley,
Central Chambers, Halifax.