An Improvement in Stentering Machines.
Year: 1893

page_text: Date of Application, 22nd Nov., 1893
Complete Specification Lelt, 13th Aug., 139 -Accepted, 29th Sept., 1894
PROVISIONAL SPECIFICATION.
An Improvement in Stentering Machines.
We, WILLIAM MATHER and DAVID PICKEN SMITH, both of Salford Irou
Works, Manchester in the County of Lancaster, Engineers, do hereby declare the
nature of this invention to be as follows:-
:-
Our invention relates to machines for stentering or transversely stretching
fabrics by the forward travel of two diverging chains, clips on which hold the
selvages of the fabric, and our object is to facilitate the adjustment of the relative
travel of the two chains so as to keep the weft always at right angles or nearly so
to the warp.
For this purpose, the chain on one side of the machine, instead of being
positively driven like the other chain, is driven in such a manner that it can readily
be accelerated or retarded as may be required when the weft is somewhat oblique.
In order to effect the acceleration or retardation, the horizontal sprocket wheel
which drives this chain is loose on its vertical spindle and has on it a bevil wheel
which is geared through an intermediate bevil pinion with an inverted bevil
wheel above it, which is fast on the vertical spindle.
This intermediate pinion is mounted on a stud projecting inwardly from a ring
which is free to turn on the vertical spindle, and which externally is obliquely
toothed to engage with a worm on a horizontal spindle. This horizontal spindle
extends some distance along the side of the machine, and is provided with a hand
wheel or with several hand wheels within convenient reach of the attendant.
When he sees that the weft of the travelling fabric is oblique, he turns the spindle
in the one direction or the other, thereby causing the worm ring and the pinion
which it carries to rotate in the one direction or the other. The pinion is thus
made to communicate from the driving bevil wheel above it a quicker or slower
motion to the bevil wheel below it which drives the sprocket wheel, the chain
driven by this sprocket wheel being thus accelerated or retarded, while the chain
on the other side of the machine continues to travel at constant speed.
Dated this 22nd day of November 1893.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
An Improvement in Stentering Machines.
We, WILLIAM MATHER, and DAVID PICKEN SMITH, both of Salford Iron
Works, Manchester, in the County of Lancaster, Engineers, 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 :-
Our invention relates to machines for stentering or transversely stretching fabrics
by the forward travel of two diverging chains, clips on which hold the selvages of
the fabric, and our object is to facilitate the adjustment of the relative travel of
the two chains so as to keep the weft always at right angles, or nearly so, to the
warp.
For this purpose, the chain on one side of the machine, instead of being
positively driven like the other chain, is driven in such a manner that it can

page_text: readily be accelerated or retarded as may be required when the weft is somewhat
oblique.
In order to effect the acceleration or retardation, we employ apparatus such as
we shall describe referring to the accompanying drawings.
Fig. 1 is a part plan of a stentering machine shewing apparatus according to our
invention at one end of the machine at A,
Fig. 2 is a vertical section and Fig. 3 is a plan, to an enlarged scale, with cover
removed, of the apparatus at A.
The horizontal sprocket wheel B which drives the chain C carrying the
stentering hooks H, is loose on the vertical spindle D which is driven in the usual
way by worm gear S or it might be by bevil gear.
On the boss of the sprocket wheel B is fixed a bevil wheel E which is geared
through an intermediate bevil pinion F with an inverted bevil wheel G above it
which is fast on the vertical spindle D.
The intermediate pinion F is mounted on a stud projecting inwardly from a
ring K which is free to turn within a casing supported by columns L from the fixed
framing M, and which externally is obliquely toothed to engage with a worm N on
a horizontal spindle O. This spindle extends some distance along the side of the
machine and is provided with a hand wheel, or with several hand wheels Q within
convenient reach of the attendant.
When he sees that the weft of the traveling fabric is oblique, he turns the
spindle O in the one direction or the other, thereby causing the worm ring K and
the pinion F to rotate in the one direction or the other. The pinion is thus made
to communicate from the driving bevil wheel G above it a quicker or slower motion
to the bevil wheel E below it which drives the sprocket wheel B, the chain C
driven by this sprocket wheel being thus accelerated or retarded, while the chain
on the other side of the machine continues to travel at constant speed.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
In combination with one of the travelling chains of a stentering machine,
apparatus whereby the travel of that chain can be accelerated or retarded by hand
applied to a horizontal spindle at the side of the machine, substantially as and for
the purpose set forth.
Dated this 13th day of August 1894.
ABEL & IMRAY,
Agents for the Applicants.