IMPROVEMENTS IN MACHINERY FOR STENTERING AND FINISHING WOVEN FABRICS
Year: 1885

page_text: I DAVID PICKEN SMITH of Stanley Street Iron Works, Paisley Road, Glasgow
in the County of Renfrew, North Britain, Engineer, do hereby declare the nature
of my Invention for "IMPROVEMENTS IN MACHINERY FOR STENTERING AND
FINISHING WOVEN FABRICS," to be as follows:-
This invention relates to improvements in stentering and finishing machines
wherein the fabric is carried by endless pitch chains provided with clips for
gripping and holding the two selvedges of the same, which move with intermittent
and alternate inequalities of speed, one chain and clips moving in advance of and
behind the other alternately so that the wefts of the fabric are drawn into oblique
positions alternately in opposite directions independently of the progressive motion
of the machine, which I accomplish in the following manner:-On the gearing end
of the machine I dispose in a suitable fixing provided. with an oblong slot a slide
block which can be operated by a hand wheel and screw: in this slide block is
mounted the first motion or gearing shaft with a double lever or wiper with two
pins, bushed or otherwise, one fitting into a slotted lever secured on the top shaft
and the other into a slot in a spur wheel mounted loosely on the aforesaid shaft;
which drives the bottom shaft by means of spur and intermediate wheels or other
equivalents. The pullies over which the chains move are placed alternately fast
and loose on each shaft which allow of the inequalities of speed of the chains
produced by the jigging motion in their passage from end to end of the machine;
the jigging motion being regulated by the eccentricity of the first motion or gearing
shaft to that of the top shaft.
The endless pitch chains and clips employed for carrying and gripping the fabric
are carried from end to end. of the machine by a suitable number of guide pullies
provided with flanges of unequal depth to admit of the passage of the clips
suspended from the side of the endless pitch chains. These pullies are mounted on
shafts or centres and disposed one above the other in suitable fixings, between
which the chains pass and are held in their correct position for working thereby
ensuring the accuracy of the clips or gripping apparatus.
Dated this 25th day of June 1885
EDMUND CHADWICK,
Agent for the Applicant

page_text: Improvements in Machinery for Stentering and Finishing Woven
Fabrics.
.
I DAVID PICKEN SMITH of Stanley Street Iron Works, Glasgow in the County
of Renfrew, North Britain, Engineer, do hereby declare the nature of my said
Invention for "IMPROVEMENTS IN MACHINERY FOR STENTERING AND FINISHING
WOVEN FABRICS," 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 improvements in stentering and finishing machines
wherein the fabric is carried by endless pitch chains provided with clips" for
gripping and bolding the two selvedges of the same, which move with intermittent
and alternate inequalities of speed, one chain and clips moving in advance of and
behind the other alternately so that the wefts of the fabric are drawn into oblique
positions alternately in opposite directions independently of the progressive motion
of the machine, which I'accomplish in the following manner :- -On the gearing end
of the machine I dispose in a suitable fixing provided with an oblong slot a slide
block which can be operated by a hand wheel and screw: in this slide block is
mounted the first motion or gearing shaft with a double lever or wiper with two
pins, bushed or otherwise, one fitting into a slotted lever secured to the top shatt
and the other into a slot in a spur wheel mounted loosely on the aforesaid shaft,
which drives the bottom shaft by means of spur and intermediate wheels or other
equivalents. The pullies over which the chains move are placed alternately fast
and loose on each shaft which allow of the inequalities of speed of the chains
produced by the jigging motion in their passage from end to end of the machine;
the jigging motion being regulated by the eccentricity of the first motion or gearing
shaft to that of the top shaft.
"
1
The endless pitch chains and clips employed for carrying and gripping the fabric
are carried from end to end of the machine by a suitable number of guide pullies
provided with flanges of unequal depth to admit of the passage of the clips
suspended from the side of the endless pitch chains.
"
These pullies are mounted on shafts or centres and disposed one above the other
in suitable fixings, between which the chains pass and are held in their correct
position for working, thereby ensuring the accuracy of the clips or gripping
apparatus.
In order that my Invention may be more fully understood and readily carried
into operation I will now proceed to describe the drawings upon the sheet hereunto
annexed; the same letters of reference being used throughout all the figures to
indicate the same or corresponding parts of my Invention. T.
DESCRIPTION OF DRAWINGS.
Fig. 1 of the accompanying drawings is a part side elevation of a stentering
and finishing machine with my improvements applied thereto for the purpose of
causing the endless pitch chains and clips to move with intermittent and alternate
inequalities of speed; Fig. 2 is a part sectional, end elevation and Fig. 3 a part plan
of same.
'
A is the sliding or shifting shaft driven from an engine or other motor by any
suitable connection, and is mounted in the sliding block B; the latter being held
and supported in the oblong slot S in the pillar or fixing D', and is operated or
moved laterally by the screw E¹ and hand wheel J,

page_text: On the end of the shaft A is fixed the double lever or wiper C with the driving
pins 1 and 2, bushed as shewn or otherwise; the pin 1 fits and slides in the slot 3.
in the spur wheel E mounted loosely on the top shaft D; the pin 2 fits and slidos
in the slotted lever or arm L secured to the top shaft D, by which the latter is
driven. The pin 1 in the double lever or wiper C drives the loosely mounted spur
wheel E; this wheel operates the spur pinion G geared into the spur wheel P fixed
on the bottom shaft F, and by which the latter is driven.
The chain pulley H is secured to the shaft D by a key or feather and drives the
clip chain on that side of the machine; the chain pulley I is secured by the same
means to the shaft F and drives the clip chain on the opposite side of the machine.
The pulleys M and N are mounted loosely on their respective shafts, thus placing
the chain pulleys alternately fast and loose which allows of the inequalities of
speed of the clip chains produced by the jigging motion in their passage from end
to end of the machine.
The operation of the apparatus is as follows:-To produce or impart a jigging
motion to the clip chains the sliding or shifting shaft A is slid out of centre with
the top shaft D, as shewn in diagram Fig. 4, with the hand wheel J and screw E¹,
by which the shaft A is placed eccentric to that of the shaft D, causing an irregular
circular motion to be given to the shaft D and spur wheel E as the driving pins 1
and 2 advance toward or recede from the centre of the shaft D. The irregular
circular motion is alternate and operates the shafts D and F accordingly, thus
effecting what is called the jigging of the clip chains, the amount of jig being in
proportion to the eccentricity of the shaft A with the shaft D, which can be varied
as desired by moving the shaft A in the oblong slot S as before described, according
to the requirements of the various kinds of fabric.
Referring now to Figs. 5 and 6-a. a. are the ordinary endless pitch chains
with the clips b employed for carrying and gripping the fabric, and are carried
from end to end of the stentering or finishing machine by a suitable number of
guide pullies c and d. The pullies c and d are provided with the side flanges f
and of unequal depths; the flanges f are smaller to allow of a sufficient space
between them to admit of the passage of the necks h. h. of the clips b suspended
from the side of the endless pitch chains a. a. The pullies c and d are mounted on
the shafts or centres m. m. disposed one above the other, between which the
chains a. a. and the necks h. h. of the clips b pass, being held in their correct
working position, and ensuring an accurate movement of the chains and gripping
apparatus, thereby minimising the wear and tear of the latter.
By the application of these pulleys it will be seen that the gripping part of the
clips b never comes in contact with them in travelling from end to end of the
machine.
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 use, construction, and arrangement of parts for driving the endless clip
chains of stentering and finishing machines, applied and operating substantially in
the manner described and as shewn on the drawings in Figs. 1 to 4.
2. The use, construction, and application of the pullies c and d with the unequal
flanges and g, applied and operating for the purpose specified, substantially as
described and as shewn on the drawings.
TL
CL 1000
EDMUND CHADWICK, C.E.,
Agent for Applicant.