Improvements in Selvedge Motions for Looms.
Year: 1894

page_text: Date of Application, 16th July, 1894
Complete Specification Left, 28th Aug., 1894--Accepted, 29th Sept.,
1894
PROVISIONAL SPECIFICATION.
Improvements in Selvedge Motions for Looms.
I, JOHN CORK of 63, Every Street, Nelson, in the County of Lancaster,
Overlooker, do hereby declare the nature of this invention to be as follows:-
--
This invention relates to selvedge motions for looms. To the loom side, I fix a
bracket, on a stud on which is mounted a quadrant lever, which receives a rocking
motion from a connecting rod operated by an eccentric or like motion from the
tappet shaft.
The leather bands or the like for operating the separate harness or selvedge
motion are attached to each end of the quadrant lever, and then are each
respectively carried round or under and over a small bowl or bowls mounted on a
wire rod carried by the above named bracket. The bands are now attached by
means of set screws or the like to a small drum of metal or other material mounted
on a square shaft, the extremities of the said shaft however being round, so that it
is capable of rotation in holes or bearings in the loom frame. The said small metal
drum or the like is bored square with a recess, into which is introduced a blade
spring, so that the drum may be passed to any particular part of the square shaft
and yet be firmly held in any desired position.
The harness or healds for forming the selvedge are now attached also on each
side of the drum. The motion of the quadrant lever, moves the drum through the
medium of the leather band attachments alternately in one and then the opposite
direction, and the healds or harness for producing the selvedge receiving this
movement are alternately raised and lowered.
The shaft also gives a similar motion to the healds for producing the selvedge at
the opposite side of the loom without attendant mechanism.
To the lower ends of the healds for forming the selvedge are attached two-bands,
which are carried round bowls mounted loosely on a wire rod in order to be
capable of moving in alternate directions.
Dated sh:
T.1 1901
F. RICHMOND,
12, Standish Street, Burnley, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Selvedge Motions for Looms.
I, JOHN CORK of 63 Every Street Nelson in the County of Lancaster,
Overlooker, 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 selvedge motions for looms. To the loom side I fix
a bracket, on a stud on which is mounted a quadrant or the like, which receives a
rocking motion from a connecting rod operated by an eccentric or like motion from
the tappet shaft.
The leather bands or the like for operating harness or selvedge motion, are
attached to each end of the quadrant lever, disc or the like, and then are each
respectively carried round or under and over a small bowl or bowls mounted on a
wire rod carried by the above named bracket.
The bands are now attached by means of set screws or the like to a small drum

page_text: with
of metal or other material mounted on a square shaft the extremities of the said
shaft however being round, so that it is capable of rotation in holes or bearings in
the loom top or frame. The said small metal drum or the like is bored square
a recess, into which is introduced a blade spring, so that the drum may be passed
to any particular part of the square shaft, and yet be held firmly in any desired
position.
The harness or healds for forming the selvedge are now also attached on each
side of the drum. The motion of the quadrant lever, disc, or the like moves the
drum through the medium of the leather band attachments alternately in one and
then the opposite direction, and the healds or harness for producing the selvedge
receiving this movement are alternately raised and lowered.
The shaft also gives a similar motion to the healds for the selvedge at the
opposite side of the loom without attendant mechanism.
To the lower ends of the healds for forming the selvedge are attached a band or
bands, which are carried round bowls loosely mounted on a wire rod, and fastened
in order to be capable of moving in alternate directions.
In the accompanying drawings, Fig. 1 is a detached view and Fig. 2 a side view
of a loom with our improved selvedge motion applied.
A is the bracket herein before described fixed to the frame or top of the loom, on
a stud on which bracket is mounted a disc B, which is a substitute for the quadrant
lever described in my Provisional Specification, although it will be obvious from
the following description, that either one or the other is equally applicable. This
disc carries a stud, to which is connected the extreme end of connecting rod C, the
other end of which is worked by a crank or the like D secured by a nut to the
tappet shaft outside the tappet wheel. The length of the connecting rod and
consequently the degree of reciprocation or alternate backward and forward
movement given to the disc B is adjusted by inserting through a hole in the
connecting rod a bolt and tightening the same in any desired position in the slot of
adjusting plate E by a nut.
The leather bands or the like F for operating the separate harness G are fixed
by a set screw or like means to small drum H, mounted on square shaft I having
round ends, which are therefore capable of moving in side brackets A on each side
of the loom.
Drum H, as clearly shewn in Fig. 3, is formed with an undercut recess, in which
is introduced bow-spring J, so that when the drum is slipped on the square shaft I,
it will be maintained firmly in any position it may be put or pushed. The
extremity of shaft 1 carries a bowl K (see Fig. 1), to which, by means of bands of
leather or other material L, carried and secured round reciprocating disc B, an
alternate to and fro movement is transmitted, and the square shaft I receiving this
motion imparts it to the separate healds or harness G, a direct and parallel lift
being thereby obtained.
The band or bands M at the lower extremity of the harness for forming the
selvedge are carried round loose bowl N, mounted on wire rod P.
Fig. 4 represents a modification of my invention. In this view the connecting
rod U is operated by an eccentric Q, which may be split in halves so as to be
readily mounted on the tappet shaft O. The other end of connecting rod is
adjustable in slot R of toothed quadrant S, so as to obtain any desired variation in
the lift of the harness. The toothed quadrant S deriving its motion from
connecting rod C imparts motion first in one and then the other direction to toothed
pinion T, fixed or cast to which is a boss as shewn in dotted lines, which operates
the harness U for the selvedge.
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 improved selvedge motion for looms, substantially as described and
illustrated in Figs. 1. 2. and 3.

page_text: 2. Square shaft I, drum H recessed and provided with bow-spring J, bowl K
and means for operating the said bowl, shaft and drum in alternate directions,
substantially as described for the purpose set forth.
3. The modification represented in Fig. 4, substantially as shewn and described.
Dated this 16th day of August 1894.
F. RICHMOND,
12, Standish Street, Burnley, Agent for the Applicant.