Improvements in Chain Clips for Finishing Machines for Textile Fabrics.
Year: 1890

page_text: Date of Application, 2nd Dec., 1890
Complete Specification Left, 29th Aug., 1891-Accepted, 3rd Oct.,
1891
PROVISIONAL SPECIFICATION.
Improvements in Chain Clips for Finishing Machines for Textile
Fabrics.
We, DUNCAN STEWART, of London Road Iron Works, Glasgow, in the County
of Lanark, North Britain, Engineer, and ROBERT WALKER, of the same place,
Manager, do hereby declare the nature of this invention to be as follows, that is
to say:
This invention has for its object to improve and simplify the construction and
action of chain clips for finishing machines for textile fabrics.
A clip as made with the improvements is of a kind having the upper jaw or
gripper inclined from the upper axis on which it can turn in a manner to cause it
to grip the firmer with the strain or pull of the woven fabric on it. The upper jaw
is however prevented from gripping the fabric except quite near to the selvedge, by
a lever having one or more prongs, which is centered on an axis some distance
back from the axis of the upper jaw, the prong or prongs resting on the selvedge of
the fabric when extending in between the jaws further than the predetermined
distance. Under the prong or prongs of the lever there are one or more slots in
the lower jaw plate, and when the selvedge is drawn from under the prong or prongs,
it or they fall into the slots. When the lever has its prong or prongs resting on the
selvedge the lever by a projection acting on a projection on the back of the upper
jaw holds that jaw up out of contact, but it drops and grips whenever the lever
prong or prongs drop into the slot or slots. The lever is formed with an arm
extending upwards which is acted on by a cam guide rail for opening the clip at
the proper parts of the machine. An antifriction roller may be fitted on the arm
to facilitate the action on it of the cam guide.
Dated this First day of December 1890.
EDMUND HUNT,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in Chain Clips for Finishing Machines for Textile
Fabrics.
We, DUNCAN STEWART, of London Road Iron Works, Glasgow, in the County
of Lanark, North Britain, Engineer, and ROBERT WALKER, of the same place,
Manager, 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, that is to say :-
This invention has for its object to improve and simplify the construction and
action of chain clips for finishing machines.
And in order that the said invention and the manner of performing the same may
be properly understood we hereunto append a sheet of explanatory drawings to be
hereinafter referred to and showing a simple modification of the improved chain
clip.
Figure 1, on the accompanying sheet of drawings is a plan,
Figure 2, a sectional side elevation,
Figure 3, a front elevation, and
Figure 4, a side elevation of the improved chain clip.
In these drawings the same reference letters and numerals are used to mark
the same or like parts wherever they are repeated.

page_text: A clip as made with the improvements is of a kind having the upper jaw or
gripper, A 1, fixed on a spindle, B, turning in bearings in the ends of brackets, C,
cast in a piece with the link, D, which is made with a single joint eye, E 1, at one
end and with a pair of joint eyes, E 2, at the other end so as to allow of a series of
clips being jointed together as is well understood. The upper jaw, A 1, is inclined
from its axis in a manner to cause it to grip the firmer with the strain or pull of
the woven fabric, F, on it; it is however prevented from gripping the fabric, F,
except quite near to the selvedge, by a lever, G 1, having a prong, G 2, and centered
on an axis, H, fixed in the brackets, C, some distance back from the axis of the
upper jaw, A 1, the prong, G 2, resting on the fabric, F, when it is first entered in
between the jaws, C, J. The lower jaw plate, J, is fixed to and carried by
brackets, K, cast in a piece with the link, D; and a slot L, is formed in the said
lower jaw plate, J, under the prong, G 2, so that when the selvedge of the fabric, F,
is drawn from under the prong, the prong falls into the slot, L, as shown in
Figure, 4. When the lever, G 1, has its prong, G 2, resting on the fabric, F,
the lever by a projection, G 3, acting on a projection, A 2, on the back of the upper
jaw, A 1, holds that jaw up just out of contact, from the fabric, F, as shown
by dotted lines in Figure, 2, but the upper jaw, A 1, drops and grips the fabric
whenever the lever prong, G 2, drops into the slot, L; and in this way the gripping
action is made to take place close to the extreme edge of the fabric. The lever, G 1,
is formed with the usual arm, G4, extending upwards which is acted on by the
usual cam guide rail (not shown) for opening the clip at the proper parts of the
machine, the lever prong, G 2, projecting through a slot, M, in the upper jaw, A 1,
when the parts are in the open position. An antifriction roller may be fitted on
the arm, G4, to facilitate the action on it of the cam guide; and the clip may be
modified by having two or more lever prongs, (G 2), where necessary with two or
more corresponding slots in the upper and lower jaw plates.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:
The improved finishing-machine chain clip, the upper jaw, A 1, being made with
a curved back projection, A 2, and combined with a lever, G 1, made with a
projection, G 3, to act on the back projection of the upper jaw, and with a prong, G 2,
arranged to enter slots in the upper jaw, A 1, and in the bottom jaw plate, J, or to
rest on the fabric, the parts operating in the manner and for the purposes sub-
stantially as hereinbefore described.
Dated this Twenty-seventh day of August 1891.
EDMUND HUNT,
Applicants' Agent.