IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1882

page_text: LETTERS PATENT to Richard Hindle and George Greenwood both of Blackburn
in the County of Lancaster for an invention of IMPROVEMENTS IN LOOMS
FOR WEAVING
PROVISIONAL SPECIFICATION left by the said Richard Hindle & George
Greenwood at the Office of the Commissioners of Patents on the 29th March
1882.
RICHARD HINDLE and GEORGE GREENWOOD, both of Blackburn in the County
of Lancaster, "IMPROVEMENTS IN LOOMS FOR WEAVING."
This invention of improvements in looms for weaving has reference to the swell
employed for arresting the progress of the shuttle at each end of the pick. In
existing arrangements the swell consists of a metal casting mounted upon a hinge
or pivot attached to the back board of the Shuttle box through which the curved
face of the Swell protrudes. A spring arranged to press upon the back of the
Swell affords the pressure or resistance required. Our invention consists in so
forming and arranging a spring that it may also answer as the Swell. We
construct our Spring swell of, tempered plate steel and attach the end thereof
nearest the end of the loom to the back-board by means of a screw in the usual
manner. The body of the Spring may be curved or formed in a line corresponding
with the face or outside of the ordinary swell or in any other convenient shape.
A Second Screw passing through a slot opening at that end of the Spring which is
fixed to the backboard is so arranged as by adjustment to regulate the amount of
pressure or resistance required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Richard Hindle & George Greenwood in the Great Seal Patent
Office on the 27th September 1882.
RICHARD HINDLE and GEORGE GREENWOOD both of Blackburn in the County
of Lancaster IMPROVEMENTS IN LOOMS FOR WEAVING
This Invention of improvements in looms for weaving has reference to the swell
employed for arresting the progress of the shuttle at each end of the pick. In
existing arrangements the swell consists of a metal casting mounted upon a hinge
or pivot attached to the back board of the shuttle box through which the curved
face of the swell protrudes. A spring arranged to press upon the back of the swell
affords the pressure or resistance required. Our Invention consists in so forming
and arranging a spring that it may also answer as the swell. We construct our
spring swell of tempered plate steel and attach the end thereof nearest the end of
the loom to the backboard by means of a screw in the usual manner.
The body
of the spring may be curved or formed in a line corresponding with the face or
outside of the ordinary swell or in any other convenient shape. A second screw
passing through a slot-opening at that end of the spring which is fixed to the back-
board is so arranged as by adjustment to regulate the amount of pressure or
resistance required.
Fig. 1 of the accompanying Drawings shews one shape or form of our improved
spring swell in which A is the swell B the back-board of the shuttle box, C the
screw by which the end of the swell A is secured to the back-board and D the
second screw which by being screwed further in or out regulates the amount of
pressure or resistance at the face of the swell A. In practice, however, we
prefer to employ a screw bolt and lock nuts (arranged as shewn in Fig. 2).
Fig. 2 shews another form of the spring swell the arrangement being. designed
to afford a more easy and gradual resistance to the shuttle as it comes in contact
with and pushes against the face f of the swell A.
Figs. 1 and 2 illustrate, only two shapes or configurations in which our improved
spring swell may be formed but the shape may obviously be modified in a variety
of ways without departing from the distinctive character of our Invention.
Having now described the nature of our said Invention and the manner in which
we prefer to carry it into practical effect we would have it understood that what
we consider to be novel and original and therefore claim as the Invention secured
to us by the hereinbefore in part recited Letters Patent is the construction of
spring swell arranged and operating substantially as described and illustrated in
the Drawings.
In witness whereof we the said Richard Hindle and George Greenwood have
hereunto set our hands and seals this twenty fifth day of September in the
woan of own Loud and thousand oight