Improvements in or relating to the Chains of Stentering and like Machines.
Year: 1896

page_text: Date of Application, 28th Jan., 1896
Complete Specification Left, 27th Oct., 1896-Accepted, 28th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Chains of Stentering and like
Machines.
I, JOHN MASON, of Higher Chatham Street, Chorlton-on-Medlock, Manchester,
in the County of Lancaster, Finisher, do hereby declare the nature of this
invention to be as follows:-
This invention relates to the chains of stentering and like machines.
Hitherto in securing or fixing the pin plates to the liuks of these chains it has
been customary amongst other methods to drill or tap the link to receive a screw
passed through the plate. A serious defect in this construction of chain has arisen
from the screw working loose in the link and consequently not holding the plate
rigid and straight. This difficulty has also been experienced in other constructions
of chains.
This invention is designed with the object of overcoming this objection and
producing a method of securing the pin plate to the link which shall be both
simple in construction and efficient in use.
It consists essentially in constructing the link with a transverse tapering dovetail
groove and forming the plate carrying the pins or points with a corresponding
tapering dovetail piece to be passed and held thereby in position therein.
In constructing the chain I form the top of the link with a transverse tapering
dovetail groove or slide or with the groove parallel to the pivots of the chain.
This groove may be made the full width of the link or part only as desired and is
so tapered that the pull of the cloth in its passage through the machine will tend
to more securely hold the pin plate in position. The piu plate is formed on the
under side with a tapering dovetail piece or projection or of a shape corresponding
to the groove or slide formed on the link. The tapered dovetail picce is attached to
the pin plate at right angles so as to be carried at right angles to the pivots of
the links.
If desired the tapered dovetail piece may be further secured in position by means
of a pin passed through the link at one side to engage with it.
Dated this 27th January 1806
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to the Chains of Stentering and like
Machines.
I, JOHN MASON, of Higher Chatham Street, Chorlton-on-Medlock, Manchester,
in the County of Lancaster, Finisher, 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 that type of chain used in stentering and like machines

page_text: in which the selvages of the fabric are secured by means of a number of pins or
needle points which are caused to pass through them.
These pins are usually mounted on short plates which are secured to the links
which go to make up the chain so that they can be easily removed and replaced.
Hitherto in securing or fixing the pin plates to the links of these chains it has
been customary amongst other methods to drill or tap the link to receive a screw
passed through the plate. A serious defect in this construction of chain has arisen
from the screw working loose in the link and consequently not holding the plate
rigid and straight. This difficulty has also been experienced in other constructions
of chains.
This invention is designed to overcome this objection and to provide a means of
securing the pin plate to the link which shall be both simple in construction and
efficient in use.
It consists essentially in constructing the link with a transverse tapering dovetail
groove and the plate carrying the pins or points with a corresponding tapering
dovetail piece, fitted into the said groove whereby it is held in position.
It will be fully described with reference to the accompanying drawings.
Fig. 1. Side elevation partly in section of two links of stentering chain.
Fig. 2. Transverse section of same on line - Fig. 1.
Fig. 3. Plan of same.
Fig. 4. Side elevation partly in section showing another form of link.
Fig. 5. Transverse section of same ou line -y Fig. 4.
Fig. 6. Plan of same.
I will describe the invention with reference to a single link as each link of the
chain will be alike.
On the top of each link A I form a transverse tapering dovetail groove B which
may be made the full width of the link if desired but at present I prefer to make
it only part of the width with a strip or piece along the face of the link to
prevent the pin plate C being pulled beyond the face of the link and out of line.
The pin plate has formed on its under side a tapering dovetail piece or
projection D corresponding to the groove B formed in the link A and extending
at right angles to the side of the plate to fit into the groove B. The groove B is
dovetailed to prevent the pin plate C being lifted or raised out of position and so
tapered in the direction of its length that the pull of the cloth in its passage
through the machine will tend to more securely hold the pin plate C in position.
If desired the tapered dovetail piece may be further secured in position by means
of a pin passed through the link at one side to engage with it.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
1. In a stentering chain a link provided with a dovetail groove on the top in
combination with a pin plate with dovetail projection which fits into said groove
substantially as described.
2. A link for stentering chains constructed substantially as described and shown.
Dated this 21st day of October 1896.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.