Improvements in Loom Shedding Motions.
Year: 1894

page_text: Improvements in Loom Shedding Motions.
I PERCY FARRER BAYNES of the Firm of Hutton and Baynes India Mill,
Blackburn in the County of Lancaster, Manufacturer, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in the shedding or pattern motions of
looms for weaving, the object being to so construct the shedding motion that the
relative positions of the treading tappets can readily be changed so that the
movements of the healds are also changed as in the weaving of what are known as
cross borders or headings which we are enabled to weave on a plain loom without
the use of expensive dobbies or other complicated shedding mechanism.
This invention consists in operating four healds by means of four ordinary
treading tappets so arranged that the healds may be operated in pairs, that is two
up and two down together, or operated so as to cross each heald being up and down
alternately.
According to this invention on the tappet shaft of the loom are four treading
tappets as ordinary, but two of these tappets are fixed on the shaft and two are
loose. Cast to the loose tappets is a bevel wheel and in gear with this wheel is a
segment bevel wheel carried on a stud fixed in a boss on the tappet shaft, and
one end of a connecting link is attached to the segment bevel wheel the other end
being connected to a collar free to slide on a key bed on the tappet shaft, and
operated and controlled by means of a forked lever the outer end of which
rests in a notch or holding device at the bottom and front of the loom.
The action is as follows. In plain weaving the tappets are set as ordinary_and
the segment bevel wheel holds the loose tappets in the required position. When
it is desired to weave a cross border or heading, the forked lever is moved to the
opposite side of its holding notch and this by the collar and link causes the
segment bevel wheel to turn the bevel wheel and loose tappets partly round on
the tappet shaft where the tappets are held by the segment bevel wheel. The
tappets when in this position operate on the 'healds so that a cross border or
heading is woven. By again changing the position of the forked lever plain
weaving is the result.
Dated this 7th day of Mor 1804
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax, Agents for the Applicant.
VUMILIE ODOTTICATION.
Improvements in Loom Shedding Motions.
I, PERCY FARRER BAYNES of India Mill, Blackburn, in the County of
Lancaster, Manufacturer, 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 improvements in what are technically known as "rep"
"

page_text: "
motions, i.e. appliances to be applied to looms for weaving "cross borders" or
"headings," the object being to provide the weaver or attendant on the loom a
ready means of changing the relative movements of the healds so as to change the
weave from plain to "rep at any time. For instance, when four healds are
employed, and say the two outer healds rise whilst the two inner healds fall, and
vice versa in plain weaving, by a simple arrangement and combination of parts
connected with the treadle motion, the movements of the healds can be changed,
and say one inner and one outer heald caused to rise whilst the other two falls, or
The invention consists in the arrangement and combination of parts
for operating and controlling the treadle tappets so that the positions of the latter
can be changed, and also their actions on the treadle lever.
vice versa.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
in which :-
Fig. 1 is a front elevation of the treadle shaft of a loom with the treadle tappets
thereon, and also the mechanism for controlling two of such tappets.
Fig. 2 is a plan view of Fig. 1.
According to this invention, the treadle tappets are of the usual construction,
and two of such tappets 1. 1 are fast on the shaft 2. The tappets 3. 3 are cast to
or form part of the bevel wheel 4, which together with the tappets 3. 3 is loose
on the shaft 2. A stud 6 in the boss 5 fast on the shaft, carries the segment bevel
wheel 7 gearing with the bevel wheel 4, and the segment bevel wheel 7 is by
link 8 connected to the boss 9, which is free to slide to and fro on a key bed on
the shaft 2. In the boss 9 is a groove 10 for the reception of a forked lever 11
for controlling the boss 9. On the boss 9 is a short finger 12, at the end of which
is the inclined block 13. A finger 14 is mounted on a stud 15 on the boss 5, and
this finger is held down by means of the blade spring 16.
The action is as follows:-In ordinary weaving, the tappets 1. 1 and 3. 3 are set
in the usual positions, and operate on the treadle levers and healds in the manner
well understood. When it is desired to change the relative movements of the
tappets 1. 1 and 3. 3, the attendant on the loom, moves the forked lever 11, which
turning on its stud 17, slides the boss 9 along the shaft 2 in the direction of the
boss 5. This movement will cause the link 8 to give a partial turn to the
segment bevel wheel 7, which turns the bevel wheel 4 partly round, and also
gives about a half turn to the tappets 3. 3, whose position on the shaft 2 is thus
changed. The throw or eccentric parts of such tappets being turned to another
part of the shaft, it follows that the time of movement of the healds operated by
said tappets will be changed.
It will be seen that the tappets 3. 3 have two positions on the shaft 2 to
either of which the tappets 3.3 can readily be set by the attendant on the loom,
or the weaver.
The finger 14 serves as a lock or holding device to hold the segment bevel
wheel 7 in the position in which it is set. The end of the finger 14 rests against
the inclined block 13 when the parts are in the position shewn by Fig. 1. When
the boss 9 is moved towards the boss 5, the inclined block 13 overcomes the
pressure of the spring 16, until the block reaches the recessed part 17, whereon
the finger 14 drops and prevents the segment wheel 7 moving until the attendant
moves the lever II and overcomes the resistance of the spring 16.
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 general construction, arrangement, and combination of parts con-
stituting the improved apparatus, as and for the purpose herein described and
substantially as illustrated by the annexed drawings.
(2.) The tappets 3. 3, bevel wheels 4-7, link 8, boss 9, and fork 11, all in

page_text: combination as and for the purpose herein described and substantially as illustrated
by the annexed drawings.
Dated this 7th day of February 1895.
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax, Agents for the Applicant.