IMPROVEMENTS IN
Year: 1860

page_text: LETTERS PATENT to Joseph Kershaw, of Allerton, near Bradford, in the
County of York, Overlooker, for the Invention of "IMPROVEMENTS IN
PROVISIONAL SPECIFICATION left by the said Joseph Kershaw at the
Office of the Commissioners of Patents, with his Petition, on the
11th April 1860.
I, JOSEPH KERSHAW, of Allerton, near Bradford, in the County of York,
Overlooker, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MEANS OR APPARATUS USED IN WEAVING," to be as follows:-
The improvements relate to means or apparatus for giving motion to the
work rollers of looms, and have for their object the obtaining greater uniformity
in the winding on of the work to such rollers or beams.
Letters Patent were granted to me, bearing date the Second day of March,.
1859, No. 558, in the Specification of which adaptations of means are shown
and described by which motion is given by eccentrics to connecting rods con-
nected to lever arrangements capable of being varied by the winding-on of the
fabric on to the beam to effect uniformity of the take-up..
I now find it an improvement to control the motions of such connecting rod
or rods, so as to secure parallelism of action thereto. For this purpose, in
place of the straps from the connecting rods employed embracing their respective
eccentrics, & so as to vibrate with them, I form them with openings slotted or

page_text: elongated in a direction at right angles to such connecting rods, and I guide
the rods so that their parallelism is maintained, and the exact motions given
by the eccentrics or other moving means is communicated to the levers
operated by them. This arrangement of the connecting means may, however,
be varied, the object being to insure that the motions given by the eccentrics
or other operating instruments may be correctly imparted to the leverage
employed.
These improvements are also adapted to means for operating the let-off
motion of looms, as also to other arrangements for winding on to work beams
or letting off from warp rollers when eccentrics or such like operating means
are employed to act upon leverage to insure uniformity of action thereto.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Kershaw in the Great Seal Patent Office on the
11th October 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
KERSHAW, of Allerton, near Bradford, in the County of York, Overlooker,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of April, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Joseph Kershaw, Her special licence that I, the said Joseph Kershaw,
my executors, administrators, and assigns, or such others as I, the said
Joseph Kershaw, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IM-
PROVEMENTS IN MEANS OR APPARATUS USED IN WEAVING," upon the condition
(amongst others) that I, the said Joseph Kershaw, my executors or admi-
nistrators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.

page_text: NOW KNOW YE, that I, the said Joseph Kershaw, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
The improvements relate to means or apparatus for giving motion to the
work rollers of looms, and have for their object the obtaining greater uniformity
in the winding on of the work to such rollers or beams.
Letters Patent were granted to me, bearing date the 2nd day of March,
1859, No. 558, in the Specification of which adaptations of means are shewn
and described by which motion is given by eccentrics to connecting rods con-
nected to lever arrangements capable of being varied by the winding-on of the
fabric on to the beam to effect uniformity of the take-up.
I now find it an improvement to control the motions of such connecting rod
or rods, so as to secure parallelism of action thereto. For this purpose, in place
of the straps from the connecting rods employed embracing their respective
eccentrics, and so as to vibrate with them, I form them with openings slotted
or elongated in a direction at right angles to such connecting rods, and I
guide the rods so that their parallelism is maintained, and the exact motions
given by the eccentrics or other moving means is communicated to the levers
operated by them. This arrangement of the connecting means may, however,
be varied, the object being to insure that the motions given by the eccentrics
or other operating instruments may be correctly imparted to the leverage
employed.
These improvements are also adapted to means for operating the let-off
motion of looms, as also to other arrangements for winding on to work beams
or letting off from warp rollers when eccentrics or such like operating means
are employed to act upon leverage to insure uniformity of action thereto.
But that the nature of the improvements and the means which I have
found to answer in carrying the same into effect may be fully understood, I
will proceed to describe the Drawing annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 shews a side view of parts of a loom arranged according to the
improvements described in the previous Specification of Patent referred to, but
modified according to my present improvements; Figure 2 is an end view of
the same; other Figures shew some of the parts separately. ³, q³, are
eccentrics upon the axis q", by which, through the connecting rods q³, motion is
communicated to the levers q, and thence to the clawkers p and p', as described
my former Specification referred to, but it will be seen that according to
in

page_text: the arrangement shewn by this Drawing, the lower end of each connecting
rod q is formed with a horizontal slotted opening 96, in which an eccentric q³
is capable of rotating so as to impart to the rods q³ an up-and-down motion;
and that the rods q may not vibrate they are each formed with a slotted
opening to receive a guide pin 9³ projecting from an arm ³ from the rod r¹,
which carries the stud r, passing into the slots q', and thereby controlling the
position of the levers q by the rod r², also carried by the rod r¹, resting on the
surface of the cloth; but these details may be varied.
To facilitate the correct operation of the parts as thus explained, I also
apply to one or more of the levers q a plate q³, with a slotted opening q¹º,
through which, as well as through a slotted opening in
one or more of the
is so formed that as
armis p', passes a pin p' of the clawker p', and the slot q
its lever q is moved in its boss p², the distance of the points p' from the axis of
the bosses p² will be varied, and this arrangement of parts may be adapted to
each of the clawkers p and p¹; I also form the end of each clawker or driver
P and p¹ with a box p³, to receive a series of teeth or fallers p, which are
capable of sliding freely in the openings formed for them in their boxes p³.
In witness whereof, I, the said Joseph Kershaw, have hereunto set my
hand and seal, this Ninth day of October, in the year of our Lord
One thousand eight hundred and sixty.
Witness,
WILLIAM BROOKES,
Patent Agent.
JOSEPH KERSHAW. (L.S.)