IMPROVEMENTS IN POWER Looms
Year: 1867

page_text: LETTERS PATENT to George Hodgson, of Bradford, in the County of
York, Machine Maker, for the Invention of "IMPROVEMENTS IN POWER
Looms."
Sealed the 15th October 1867, and dated the 30th April 1867.
PROVISIONAL SPECIFICATION left by the said George Hodgson at the
Office of the Commissioners of Patents, with his Petition, on the 30th
April 1867.
I, GEORGE HODGSON, of Bradford, in the County of York, Machine Maker,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
POWER LOOMS," to be as follows:-
When looms are working at high speeds the cones or arms of the picking
shafts are by the suddenness and force of the action of the tappets acting on
such parts at the times of "picking" or the momentum obtained thrown off
the tappets, and the force of their return acts injuriously on the parts of the
loom.
The object of the improvements is to remedy these evils by the application of
stops to control the motion of such cones or arms of the picker shafts. For this
purpose I apply a hoop or hoops to each picking shaft fastened by a set screw
or other suitable means with a tongue or arm, to which by preference is
applied a piece of india-rubber or other suitable flexible or elastic material, so
that when the "nose" of a tappet is at its full for the pick the cone or arm

page_text: of the picking shaft cannot leave it on account of this tongue then going
against the loom end or other stop provided in position for the purpose. The
india-rubber, or other elastic, or flexible, or other stop may be placed in position
with capability of adjustment to act directly in controlling the cones or arms
of the picking shafts in either direction.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Hodgson in the Great Seal Patent Office on the
29th October 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
IIODGSON, of Bradford, in the County of York, Machine Maker, send
greeting.
.
WHEREAS Her. most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of April, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs, and successors, give and grant unto me, the said
George Hodgson, Her special licence that I, the said George Hodgson, my
executors, administrators, and assigns, or such others as I, the said George
Hodgson, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter 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 "IMPROVEMENTS IN POWER LOOMS,"
upon the condition (amongst others) that I, the said George Hodgson, my
executors or administrators, 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.
. :
NOW KNOW, YE, that I, the said George Hodgson, 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:-
When looms are working at high speeds the cones or arms of the picking
shafts are by the suddenness and force of the action of the tappets acting on
such parts at the times of "picking" or the momentum obtained thrown off

page_text: the tappets, and the force of their return acts injuriously on the parts of
the loom..
The object of the improvements is to remedy these evils by the application
of stops to control the motion of such cones or arms of the picker shafts. For
this
purpose I apply a hoop or hoops to each picking shaft fastened by a set
screw or other suitable means with a tongue or arm, to which by preference is
applied a piece of india-rubber or other suitable flexible or elastic material, so
that when the nose of a tappet is at its full for the pick the cone or arm of
the picking shaft cannot leave it on account of this tongue then going against
the loom end or other stop provided in position for the purpose. The india-
rubber, or other elastic, or flexible, or other stop may be placed in position with
capability of adjustment to act directly in controlling the cones or arms of the
picking shafts in either direction, so as to regulate the time when the cone or
arm of the picking shaft acted on by the tappet shall be acted on by the
picking tappet, as well as prevent such cone or arm from going too far when
picked by the tappet.
But that the Invention may be fully understood, I will by the aid of the
accompanying Drawing proceed to describe means pursued by me in carrying
the same into effect.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a sectional end view; and Figure 2 a plan of a portion of
the end framing of a loom, and some of the working parts with the improve-
ments applied to them.
a indicates a portion of one of the end frames, and b a portion of a back
cross, stay of the loom; c, the main or tappet shaft with one of the wiper
tappets & thereon for acting on the wiper arm or cone e of the picking shaft f.
According to my improvements there is applied to the picking shaft f another
arm or tongue g, the end of which is by preference provided with a piece
of india-rubber, or other suitable flexible or elastic substance h, in order
that when the tappet acts on the wiper arm or cone e to move it to the full
extent due to the form of wiper tappet used the further movement of the arm
or cone e and of the picking-shaft attached to it may be arrested by the elastic
substance h on the arm 9 coming against the framing of the loom; or in place
of the arm g acting against the framing it may act against a stop provided for
the purpose.
In either case the parts may be formed adjustable to the extent
of motion desired. The arm h is formed with a hoop or lug i, by which
aided by the set screw j it is connected with capability of adjustment on the
picking axis f. The india-rubber or other flexible material at the end of the

page_text: arm 9 is retained there by the plate: 9 and set screws g³, g³. If desired
adjustable stops with india-rubber or other suitable flexible or elastic material
máy be applied to act direct on the wiper, arms or cones to control their
motion in either or both directions to the extent desired. If desired arms h
or parts acting as such may be applied to control the distance of motion of
the arms or cones and picking shafts in the opposite direction, as indicated by
red lines in Figure 1. By being able to regulate the motion of the picking
shaft in both directions less wear and tear of the parts generally results, and
_great advantage is obtained, particularly when working what is called pick
and pick, by enabling the picking tappet to get more-or-less-hold-of-the cone.
or arm, and thereby regulate the force of the pick.
Having thus described-my-Invention, and means which I adopt in carrying
the same into effect, I would have it understood that I do not confine myself
to the precise arrangement of parts. as shown and described, so long as the
peculiar character of the Invention be retained substantially as explained.
In witness whereof, I, the said George Hodgson, have hereunto set my
hand and seal, this Twenty-fourth day of October, in the year of our
Lord One thousand eight hundred and sixty-seven.
GEORGE HODGSON. (L.S.)