Improvements in Chain Clips for Stentering, Drying, or Finishing Machines.
Year: 1887

page_text: Date of Application, 31st Oct., 1887
Complete Specification Left, 27th July, 1888
Complete Specification Accepted, 7th Sept., 1888
PROVISIONAL SPECIFICATION.
Improvements in Chain Clips for Stentering, Drying, or Finishing
Machines.
I, DUNCAN STEWART, of London Road Iron Works, Glasgow, in the County of
Lanark, North Britain, Engineer, do hereby declare the nature of this Invention
to be as follows, that is to say:-
My said Invention has for its object to improve the construction of the chain clips
used in stentering, drying, or finishing machines; and whilst making them with ample
gripping or holding power, to facilitate their being acted on by the stationary cam
guides which open them, and to diminish wear and tear.
In carrying out my Invention I make the clip of any suitable known construction
with the upper jaw arranged to be closed by strong springs, and with a shank or stud
formed or fixed on the upper jaw to be acted on by the cam guides. Instead however
of the cam guides acting directly on the shank or stud I fit thereon an antifriction
roller on which the cam guide bears.
Dated this Twenty-ninth day of October 1887.
EDMUND HUNT,
Applicant's Agent.

page_text: Improvements in Chain Clips for Stentering, Drying, or Finishing
Machines.
I, DUNCAN STEWART, of London Road Iron Works, Glasgow, in the County of
Lanark, North Britain, Engineer, 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:-
My said Invention has for its object to improve the construction of the chain clips
used in stentering, drying, or finishing machines; and whilst making them with
ample gripping or holding power, to facilitate their being acted on by the stationary
cam guides which open them, and to diminish wear and tear.
In carrying out my Invention I make the clip of any suitable construction with
the upper jaw arranged to be closed by strong springs, and with a shank or stud formed
or fixed on the upper jaw to be acted on by the cam guides. Instead, however, of
the cam guides acting directly on the shank or stud I fit thereon an antifriction roller
on which the cam guide bears.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and showing my improved clip and parts of machinery
for carrying and acting on the same.
Figure, 1, is a plan of part of the chain guide rail and stationary cam guide.
Figures, 2, and 3, are, respectively, a transverse section and an elevation corresponding
to figure, 1, and showing one link of the chain of clips as being carried and acted
on. Figure, 4, is a sectional back elevation, figure, 5, a plan, figure, 6, a front
elevation; and figure, 7, a transverse vertical section of the chain clip showing my
improvements.
Each link, 8, of the clip chains is constructed with a single eye, 9, at one end and
double eyes, 10, at the other to enable the links to be jointed together to form a chain
which runs in the chain guide rail, 11, of the machine as shown in figures, 2, and 3,
of the drawings. The clip itself is made with lower and upper jaws, 12, 13, the lower
jaw, 12, being formed on the outer end of a bracket, 14, cast in a piece with the link, 8,
part of the bracket acting as a shield to prevent the escape of heated air between the
clip and the link, 8, when used in machinery for drying woven fabrics. The upper
movable jaw, 13, which is hinged by means of arms, 15, and a pin, 16, to the
bracket, 14, is arranged to be closed by a strong spring, 17, and is made with a shank
or stud, 18, (figure, 7) which is usually acted on by cam guides, 19, in order to opon
the clip. The cam guides are fixed by means of brackets, 20, on them, being bolted
to the back of the guide rail, 11, as shown in figures, 1, 2, and 3, of the drawings.
Instead, however, of the cam guides, 19, acting directly on the shank or stud, 18,
I fit thereon an antifriction roller, 21, on which the cam guide bears; the roller, 21,
being held in position by a screw and washer, 22, on the head of the stud, 17.

page_text: With clips made as heretofore without the antifriction roller, 21, the gripping or
holding power has either been insufficient, or the wear by the action of the cam guides
has been excessively severe and rapid; but the application of the roller admits of
stronger springs being used without causing great wear.
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 :-
Providing chain clips for stentering, drying, or finishing machines with antifriction
rollers on the shanks or studs on the movable jaws substantially as and for the purposes
herein before described.