Improved Selvage Motion of Looms for Weaving.
Year: 1899

page_text: Date of Application, 6th Jan., 1899
Complete Specification Left, 6th Oct., 1899-Accepted, 11th Nov., 1899
Improved Selvage Motion of Looms for Weaving.
I, JOHN SNOWDEN, of 106, Todmorden Road, Burnley, in the County of
Lancaster, Cotton Manufacturer, do hereby declare the nature of this invention
to be as follows : —
This invention relates to a new and improved selvage motion of looms for
weaving. The separate healds or harness for the formation of the selvage are
connected to a piece of listing, both above and below the loom, so as to form an
endless band, which may be lengthened or shortened by buckles in the usual
manner. These endless bands are placed one on each side of the loom, and are
passed over loose bobbins mounted on studs or spindles carried by small brackets
bolted to the top rail of the loom above, and bolted to the loom stays below the
loom respectively. Secured by rivets to the listing is a small piece of leather
formed into an eyelet or slit, and by suitable attachments with which, the recip-
rocating movement of the separate healds is effected by means of an armı.
Two of such arms are employed, one for each separate harness as aforesaid, and
are carried by a loose shaft mounted in brackets secured to the loom side. Each of
the said arms respectively is formed in two pieces, one of such pieces having a boss,
so that it may be secured to the shaft by a set screw in any desired position. This
portion is formed with a slot and cast flanges, into which fits the other portion of
the arm, also slotted for adjustment, and both are secured together by a nut and
screw, the upper one being cast with a stud at right angles, and with such stud
connection is made with the separate harness as aforesaid.
The desired reciprocation of the shaft is effected by means of a crank attach-
ment to the cog or tappet wheel of the loom. The nut of the tappet shaft is
removed, and an oblong plate having a large hole at one end is passed on the
shaft by means of the said hole, and the nut is tightened upon it. At the other
end of the short oblong crank plate is attached a connecting rod formed with a
boss This boss fits on a flanged bush, and is held a suitable distance from the
nut on the tappet shaft to clear the latter, by a continuation of the bush, which
comes against the face of the short oblong crank plate, when a bolt is passed
through the said bush, and also through a small hole in the short crank plate,
and then fastened by a nut on the other side. A washer is inserted between the
bolt and the boss of the connecting rod. Two or three such holes are formed in
the crank plate for adjustment of the connecting rod to give the required dwell
to the healds. The connecting rod at its other extremity is cast with a short
stud, which imparts a rocking movement to an arm fixed to the said shaft carry-
ing the said arms for imparting an alternate up and down movement to the
healds for forming the selvage.
Such arm is provided with two or more holes for adjustment of the connecting
It is formed with a boss, by
1od to deepen or shorten the shed, as desired.
which it fastened to the said shaft by a set screw. A couple of collars fixed
by set screws are also put on the shaft to prevent its end to ond movement.
TAL: 5th day of Jon 1899

page_text: Improved selvage Motion of Looms for Weaving.
I, JOHN SNOWDEN, of 106, Todmorden Road, Burnley, in the County of
Lancaster, Cotton 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 a new and improved selvage motion of looms for
weaving. The separate healds or harness for the formation of the selvage are
connected to a piece of listing, both above and below the loom, so as to form an
endless band, which may be lengthened or shortened by buckles in the usual
manner. These endless bands are placed one on each side of the loom, and aro
passed over loose bobbins mounted on studs or spindles carried by small brackets
bolted to the top rail of the loom above, and bolted to the loom stays below the
loom respectively. Secured by rivets to the listing is a small piece of leather
formed into an eyelet or slit, and by suitable attachments with which, the recip-
rocating movement of the separate healds is effected by means of an arm.
Two of such arms are employed, one for each separate harness as aforesaid, and
are carried by a loose shaft mounted in brackets secured to the loom side. Each of
the said arms respectively is formed in two pieces, one of such pieces having a boss,
so that it may be secured to the shaft by a set screw in any desired position. This
portion is formed with a slot and cast flanges, into which fits the other portion of
the arm, also slotted for adjustment, and both are secured together by a nut and
screw, the upper one being cast with a stud at right angles, and with such stud
connection is made with the separate harness as aforesaid.
The desired reciprocation of the shaft is effected by means of a crank attach-
ment to the cog or tappet wheel of the loom. The nut of the tappet shaft is
removed, and an oblong plate having a large hole at one end is passed on the
shaft by means of the said hole, and the nut tightened upon it. Af the other
end of the short oblong crank plate is attached a connecting rod formed with a
boss. This boss fits on a flanged bush, and is held a suitable distance from the
nut on the tappet shaft to clear the latter by a continuation of the bush, which
comes against the face of the short oblong crank plate, when a bolt is passed
through the said bush, and also through a small hole in the short crank plate,
and then fastened by a nut on the other side. A washer is inserted between the
bolt, and the boss of the connecting rod. Two or three of such holes are formed in
the crank plate for adjustment of the connecting rod to give the required dwell
to the healds. The connecting rod at the other extremity is cast with a short
stud, which imparts a rocking movement to an arm fixed to the said shaft carry-
ing the said arms for imparting an alternate up and down movement to the
healds for forming the selvage.
Such arm is provided with two or more holes for adjustment of the connecting
rod to deepen or shorten the shed, as desired. It is formed with a boss, by
which it is fastened to the said shaft by a set screw. A couple of collars fixed
by set screws are also put on the shaft to prevent its end to end movement.
Fig. 1 of the accompanying drawing is a side elevation of a loom fitted with
my improved selvage motion.
A A are the separate healds or harness for the formation of the selvage. These
are attached to a piece of listing above and below, so as to form an endless band
as shown, which may be adjusted by buckles in the usual manner.
The endless bands at the top and hottom of the loom respectively are passed
over loose bobbins B, mounted on studs or spindles, carried by a bracket C,

page_text: bolted to the top rail D of the loom, and also to a similar bracket, fixed to the
loom stay, below the loom respectively.
A small piece of leather is secured to the listing, and is formed with an
eyelet or slit F, and to it the arm G is attached, having a rocking movement
imparted to it as hereinafter described, for effecting the reciprocating movement
of the separate healds.
One of such arms is employed on each side of the loom, for each respective
selvage, and it is formed in two pieces. The piece is formed with a boss for
fixing to the shaft H, which is loosely mounted in the bracket J. For adjust-
ment, the piece G' is also slotted and formed with cast. flanges, and across it is
fixed the slotted portion G by means of a screw and nut. The loosely mounted
shaft H extends across the loom, and to it another arm constructed similarly to
the arm G is attached at the opposite side.
The loosely mounted shaft H has a rocking movement imparted to it by the
connecting rod K, through the medium of the arm L, the latter having holes
in it for adjustment, so as to deepen the shed, if necessary.
The connecting rod is operated by the crank plate M, (shewn enlarged in
Fig. 2) formed with a large hole for fixing on the tappet shaft, between the
tappet wheel and its nut. The connecting rod is connected to the crank plate
by forming in the latter a hole or holes M, and pushing through the same a
bolt, on which I mount a bush P (see Fig. 3), the latter having a central flange P¹.
The connecting rod is attached to the bush at one side, whilst the other side of
the bush projects over, and permits of the connecting rod passing, the nut of
the tappet wheel. A number of holes are preferably formed in the crank plate
for adjustment of the connecting rod, so as to give more or less dwell to the
motion of the separate harness,
By merely disconnecting the connecting rod from the tappet wheel, the
selvage motion may be stopped when not required for use.
.
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 arrangement and construction of a loom selvage motion,
substantially as shown and described.
2. The combination in a loom selvage motion of the healds, and attachments A,
adjustable arms G, rock shaft H, brackets J, adjustable armis L, connecting
rod K, adjustable crank plate M fixed in the manner described to the tappet
shaft, and all arranged and acting substantially as described and illustrated.
Dated this 5th day of October 1899.
RICHMOND & Co.,
Chartered Patent Agents, 12, Standish Street, Burnley