Improvements in Loom Dobbies.
Year: 1888

page_text: Date of Application, 27th Dec., 1888
Complete Specification Left, 26th Sept., 1889-Accepted, 23rd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Loom Dobbies.
I ARTHUR SOWDEN of Springfield House Baildon in the County of York Machine
Maker do hereby declare the nature of this invention to be as follows:-
This invention consists of improved apparatus for operating card barrel whereby
the said barrel may be caused to rotate or work in its ordinary course or. be reversed
and worked in the opposite direction without reversing any other part of the loom
the reverse motion being of instant application and effect and the lagging back is
effected two picks for each card.
According to this my invention on a stud is a vertical broken backed lever at the
foot of which are two catches, push and pull, the catches engage as required with
two catch wheels on the axis of the card cylinder.
The upper end of the vertical lever is connected by an adjustable rod with the
rocking lever of the dobby which imparts the requisite motion to the vertical lever
and thereby operates the catches.
The catches are connected by string or wire with a cross lever on a stud carried
by the broken backed lever so that as the end of the cross lever is pulled down the
push lever will engage with its catch wheel and so turn the barrel in one direction,
but when the cross lever is by spiral spring in a raised position the other or pulling
lever will engage with its wheel and the barrel will be.turned in the opposite direction
the reversing the barrel being effected by simply pulling down the cross lever which
will lift the pull lever out of gear with its wheel and bring the pushing lever instantly
into operation without any other part of the dobby or loom requiring to be reversed or
interfered with.
The catch wheels have radius slots by means of which and bolts they can be set and
adjusted in relation to their operating catches, and stop pieces are provided which
limit the movements of the catches and cross lever.
Instead of the broken backed lever the connecting rod may be made available by
use of springs to save the dobby from injury in event of any fouling of the parts
so likewise three or more under & over catches might be employed for the reversing
and working the card barrel but I prefer the methods described for broken backed
lever & for the catches & wheels.
1000
COMPLETE SPECIFICATION.
Improvements in Loom Dobbies. ·
I, ARTHUR SOWDEN, of Springfield 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 consists of improved apparatus for operating card barrel whereby the
said barrel may be caused to rotate or work in its ordinary course or to be reversed
and worked in the opposite direction without reversing any other part of the loom the
reverse motion being of instant application and effect and the lagging back is effected
two nicks for each card.

page_text: According to this my invention on a stud is a vertical and preferably broken backed
lover at the foot of which are two catches push and pull, the catches engage as required
with two catch wheels on the axis of the card cylinder.
The upper end of the vertical lever is connected by an adjustable rod with the
rocking lever of the dobby and which lever imparts the requisite motion to the vertical
lever and thereby operate the catches. The catches are connected by string or wire
with a cross lever on a stud carried by the broken backed lever so that as the end of
the cross lever is pulled down, the push lever will engage with its catch wheel and so
tarn the barrel in one direction, but when the cross lever is by spiral spring in a raised
position the other or pulling catch will be turned in the opposite direction the
reversing of the barrel being effected by simply pulling down the cross lever which
will lift the pull lever out of gear with its wheel and bring the pushing lever instantly
into operation without any other part of the dobby or loom requiring to be reversed or
interfered with. The catch wheels have radius slots by means of which, and bolts they
can be set and adjusted in relation to their operating catches and stop pieces are
provided which limit the movement of the catches and cross lever.
Instead of the broken backed lever the connecting rod may be made available by
use of springs to save the dobby from injury in event of any fouling of the parts, so
likewise three or more under and over catches might be employed for the reversing
and working the card barrel but I prefer the methods described by broken backed
lever and for the catches and wheel.
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 a dobby having applied thereto my improved apparatus
for operating the pattern or card barrel.
Fig. 2. is an end elevation of the improved apparatus for purpose aforesaid detached
from the dobby.
According to this my invention on a stud 1 is a vertical and preferably broken
backed lever 2 at the foot of which are two catches 3. 4 push and pull the catches
engage as required with two catch wheels 5. 6 on the axis 7 of the card cylinder 8.
The upper end of the vertical lever 2 is connected by an adjustable rod 9 with the
rocking lever 10 of the dobby and which lever imparts the requisite motion to the
vertical lever 2 and thereby operates the catches 3. 4. The catches 3 and 4 are con-
nected by string or wire 11. 11 with a cross lever 12 on a stud 13 carried by the
broken backed lever 2 so that as the end of the cross lever 12 is pulled down by cord
or spring 14 the pulling catch 4 will engage with its catch wheel 5 and so turn the
barrel 8 in one direction; but when the cross lever 12 is by spiral spring 13" in a
raised position the other or pushing catch 3 will engage with its wheel 6 and the
barrel 8 will be turned in the opposite direction the reversing of the barrel being
effected by simply pulling down the cross lever 12 which will lift the pushing catch 3
out of gear with its wheel 6 and bring the pulling catch 4 instantly into operation
without any other part of the dobby or loom requiring to be reversed or interfered
with.
The catch wheels 5. 6 have radius slots 5ª by means of which and bolts 6ª they can
be set and adjusted in relation to their operating catches 3. 4 and stop pieces are pro-
vided which limit the movement of the catches and cross levers 12. Instead of the
broken backed lever the connecting rod may be made available by use of springs to
save the dobby from injury in event of any fouling of the parts, so likewise three or
more under and over catches might be employed for the reversing and working the
card barrel but 1 prefer the methods described of broken backed lever and for the
catches and wheels.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I would have it understood
that lay no claim to the use of the reversing catches 3. 4 as such have long heen.

page_text: employed on jacquard machines for purpose of lagging back or reversing the card
cylinder, but what I do claim is :—
1. Reverse acting catches mounted upon an operating lever such as 2 the catches
being controlled by means of cords or wires 11 operated through a lever, such as 12
all in combination as described and as illustrated by the drawings annexed.
Dated this 25th day of September 1889
ARTHUR SOWDEN.
By his Agent, Walter Brierley,
Central Chambers, Halifax.