IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1877

page_text: LETTERS PATENT to George Hodgson, of Bradford, in the County of York,
Machine Maker, and James Broadley, of the said Bradford, and in the
Employment of the said George Hodgson, for the Invention of "IMPROVEMENTS
IN LOOMS FOR WEAVING."
Sealed the 20th October 1877, and dated the 30th April 1877.
PROVISIONAL SPECIFICATION left by the said George Hodgson and James
Broadley at the Office of the Commissioners of Patents on the 30th April
1877.
GEORGE HODGSON, of Bradford, in the County of York, Machine Maker, and
JAMES BROADLEY, of the said Bradford, and in the Employment of the said George
Hodgson. IMPROVEMENTS IN LOOMS FOR WEAVING."
"
The object of the Invention is to facilitate the working, with series of shuttles, by
means of lifting shuttle boxes or chambers.
According to one arrangement, when no selection is made by the pattern surface,
one of the boxes remains in a line with the race, and a selection from that to others
is effected by a tappet on the tappet shaft, or a shaft actuated thereby, operating a
lever with studs, on which catches are brought to act, according to the box or
chamber for the time desired to be brought into use, by levers operated by the
pattern surface, such catches being connected in position, in the length of a lever,
according to the extent of traverse desired by them respectively, and this lever is,
by connecting rod, connected to the series of shuttle chambers. Or two or more
levers may be used to be operated by separate tappets, such levers having studs to
be caught by catch rods operated by other lovers and pattern surface. These catch
rods are attached to a lever or levers connected by connecting rod to the series of
boxos.
By another arrangement the selection of boxes or shuttle chambers is effected by
a tappet with different rises acting on an L or such like lover, one end or part of
which is connected, by connecting rod, to the series of shuttle chambers.
By altering the relations of the spur wheels to the tappot, various desired patterns
can be worked.

page_text: The jacquard or pattern cylinder is carried by a lever swinging somewhat
vertically, and operated somewhat horizontally by excentric from the crank shaft.
In all cases the swell for acting on the stop motion to stop the loom, when a
shuttle is not properly boxed, is carried by the frame, in which the series of shuttle
chambers slides, so that the same swell serves for any one of the shuttles for the
time in a line with the race.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Hodgson and James Broadley in the Great Seal Patent Office
on the 24th October 1877.
GEORGE HODGSON, of Bradford, in the County of York, Machine Maker, and
JAMES BROADLEY, of the said Bradford, and in the Employment of the said George
Hodgson. "IMPROVEMENTS IN LOOMS FOR WEAVING."
The object of the Invention is to facilitate the working, with series of shuttles, by
means of lifting shuttle boxes or chambers.
According to one arrangement, when no selection is made by the pattern surface
one of the boxes remains in a line with the race, and a selection from that to others
is effected by a tappet on the tappet shaft, or a shaft actuated thereby, operating a
lever with studs, on which catches are brought to act, according to the box or
chamber for the time desired to be brought into use, by levers operated by the
pattern surface, such catches being connected in position, in the length of a lever,
according to the extent of traverso desired by them respectively; and this lever is,
by connecting rod, connected to the series of shuttle chambers. Or two or more
levers may be used to be operated by separate tappets, such levers having studs to
be caught by catch rods operated by other levers and pattern surface. These catch
rods are attached to a lever or levers connected by connecting rod to the series of
boxes.
By another arrangement the selection of boxes or shuttle chambers is effected by
a tappet with different rises acting on an L or such like lever, one end or part of
which is connected, by connecting rod, to the series of shuttle chambers.
By altering the relations of the spur wheels to the tappet various desired patterns
can be worked.
The jacquard or pattern cylinder is carried by a lever swinging somewhat
vertically, and operated somewhat horizontally by excentric from the crank shaft.
In all cases the swell for acting on the stop motion to stop the loom when
a shuttle is not properly boxed, is carried by the frame, in which the series of
shuttle chambers slides, so that the same swell serves for any one of the shuttles for
the time in a line with the race.
But that the Invention may be the better understood, we will, by the aid of the
accompanying Drawings, proceed to describe means pursued by us in carrying the
same into effect.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows by end view, Figure 2 by plan view, and Figure 3 by back view,
a portion of a loom for weaving purposes, with parts arranged according to one part
of our improvements.
In each of these views the same letters indicate corresponding parts.
a, a, indicates by outline the end framing of the loom; b, the crank shaft; and c,
the tappet shaft. These shafts are geared together, and driven in the usual way.
d shows the end of a batten, carrying the series of shuttle chambers, to be raised or
lowered, as the case may be, into a line with the race; d¹ is one of the supporting
arms for the batten, supported to rock on the axis d², as usual. On the tappet
shaft c is applied the tappet e, to act on the truck or bowl e³, carried by the lever e²,

page_text: one end of which is supported to rock on the fixed stud e³, whilst towards the other
end of it there is applied the projecting studs es, es, in positions to act upon the
catches e, e7, when either of those catches is brought into position for that purpose.
The lower end of these catch rods e, e7, are, by pin joints es, connected to the lever
e, which is supported to rock on the fixed stud e¹0, and by pin joint e¹¹ is connected
to the lower end of the rod e¹, the upper end of which is connected to the series of
shuttle chambers, so that any motion given to the lever e may be communicated to
those chambers to bring the one of them, desired for the time, in a line with the race.
The tendency of the upper end of each of the catch levers e, e7, is for the catch, at
such end, to fall out of the way of the studs e or e³, and the selection for the one
of them, to be acted upon in the lifting of the lever e², is effected by means of the
leverf, the lower end of which is formed with two noses f, one of which is
adapted to act on the catch e, and the other on the catch e, so as to bring one or
the other of them into position to be caught by a stud e' or 6³. The lever fis
supported to turn on a fixed stud f, and at its upper end it carries pins f³ of
different lengths, according to the extent of motion desired, whether the noses f¹
are to act on the catches e or e7, or on neither of them, such pins f3 being in position
to be acted upon by the jacquard or pattern surface employed. g is a spring stop,
suspended from the lever e² by a stud g¹. This stop g, by its notches g, acts on the
edge of the fixed guide plate i to control the extent of motion of the lever e².
Figures 4, 5, and 6 show, by end view, back view, and plan view, a modification
of the above, showing that two or more of levers e², e, c², e, e¹¹, e¹², and parts acting
therewith may be employed, to be operated as described in respect of Figures 1, 2,
and 3.
Figure 7 shows an arrangement of parts in which the selection of the boxes is
effected by the use of a tappet k applied to revolve on a stud k¹, and which, by speed
wheels k, is connected with the tappet shaft c for the requisite motion to it. This
tappet is cut in steps to the extent and number of motions required to the series of
boxes c¹³, and it acts on the one end of the lever l, which is supported to turn on tho
fixed stud /', and at its other end is, by pin joint e¹¹, connected to the lower end of the
lifting rod e, the upper end of which is connected to the series of boxes e¹³, as
shown. By altering the relations of these speed or spur wheels to the tappet for
the time in use, variations in the movements of the boxes to the patterns desired
will readily be attained.
Figures 8 and 9 show a modification of this arrangement, in which the cam or
tappet k is applied to the box or hollow shaft of a stud wheel k', so that the cam or
tappet and stud wheel may be capable of revolving together on a fixed stud k²,
carried by a bracket from the main framing, or otherwise. The tappet or cam k
acts on a truck or pulley carried by one end of the lever l, and this lever / is
supported to rock on a fixed stud 12, whilst at its other end it carries a pin which
passes into the slotted opening formed for it in the inner end of the lever arm l
which is supported to rock on the fixed stud 1, and by pin joint ell is connected to
the lower end of a connecting rod e¹, the upper end of which is connected to the
series of shuttle boxes €13
The stud wheel k¹ carrying the cam or tappet k is operated at the times desired
by means of the catch rod m, the upper end of which is for its lifting and lowering
motion connected by pin joint m₁ to the one end of the lever m², which, by an
adjustable stud m³, carries a truck or bowl m* capable of being operated by the cam
or tappet m³ or other suitable tappet on the crank or other suitable shaft. The
other end of this lever m² is supported to rock on the stud me which is supported
so as to be capable of yielding by spring pressure, as shown, to prevent breakage in
the ovent of sticking of the parts. The catch rod m is moved into or out of position
for the catch at its lower end to catch on to or miss a stud of the wheel k¹ by means
of the lever n, which, by the two studs n', n', embraces the opposite edges of the
catch rod m, whilst the lever n is supported to rock on a fixed stud n² and is at its
other end provided with studs of different lengths, to be operated by jacquard or
pattern surface, as is well understood.

page_text: Figure 10 shows a modification of the above, in which, by the use of catch levers m
on opposite sides, capable of being operated by pattern surface, the pin wheel k¹ and
tappet k carried thereby may be operated to cause them to make partial rotations
in either direction at the times and in the order desired.
Figures 11 and 12 show modifications of the cams or tappets that may be
employed.
In Figures 1, 2, and 3, the jacquard cylinder m is shown supported by the upper
end of the lever frame n, and this lever frame n is supported to rock on the stationary
stud n, whilst the to-and-fro rocking motion to the upper end of this frame, for
effecting the required to-and-fro movements to the cylinder m, is effected by the
excentric o acting by the rod o¹, which is attached by the adjustable pin joint o² to
the lever frame n; p is the swell for acting on the stop motion.
Having thus described our Invention and means which we adopt in carrying the
same into effect, we would have it understood that we do not confine ourselves to
the exact arrangements of parts as shown and described, as variations may be made
therein without departing from the peculiar character of our Invention, but what
we do claim is,―
First. The arranging or combining parts for operating shifting shuttle boxes of
looms for weaving, as described in respect of Figures 1, 2, and 3.
Secondly. We claim the arranging or combining parts for operating shifting
shuttle boxes of looms for weaving, as described in respect of Figures 4, 5, and 6.
Thirdly. We claim the arranging or combining parts for operating shifting shuttle
boxes, as described in respect of Figures 7, 8, 9, 10, 11, and 12.
And, Fourthly. We claim the method of supporting and operating jacquard or
pattern surface cylinders m, as described in respect of Figures 1, 2, and 3.
In witness whereof, we, the said George Hodgson and James Broadley, have
hereunto set our hands and seals, this Fifteenth day of October, in the year
of our Lord One thousand eight hundred and seventy-seven.