IMPROVEMENTS IN CIRCULAR BOX Looms
Year: 1865

page_text: LETTERS PATENT to John Keighley, of Laister Dyke, near Bradford, in
the County of York, Machinist, and Richard Shephard, of the same
Place, Foreman, for the Invention of "IMPROVEMENTS IN CIRCULAR BOX
Looms."
Sealed the 11th August 1865, and dated the 22nd February 1865.
PROVISIONAL SPECIFICATION left by the said John Keighley and
Richard Shephard at the Office of the Commissioners of Patents, with
their Petition, on the 22nd February 1865.
We, JOHN KEIGHLEY, of Laister Dyke, near Bradford, in the County of
York, Machinist, and RICHARD SHEPHARD, of the same Place, Foreman, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
CIRCULAR Box Looms," to be as follows:-
Our improvements relate to means or apparatus for operating the "clicks"
or "catches," which are attached by means of pins to one end of what are
technically termed the "pulling levers," to the other extremity of which are
also attached the "pulling catches" for actuating the circular revolving
shuttle box, in order to produce any desired change in the colour of the weft
employed, the chief object being to obtain greater simplicity in detail and
certainty of action. For this purpose instead of the ordinary levers, card

page_text: pins, and connecting rods, we employ a bell-cranked lever or bell-cranked
levers having its fulcrum or their fulcra upon a stud made fast to the framing
of the loom. The ends of these bell-cranked levers are placed in suitable guides
or brackets from the main framing of the loom. In the bracket or guide
placed immediately over the card cylinder of the jacquard apparatus are the
pins which operate these levers. These pins are formed with heads, and are
capable of rising and falling freely, and are entirely disconnected from the
bell-cranked levers. One end of each of these bell-cranked levers rests upon
one of the pins (there being one pin for each of the levers employed), and as
the cards of the jacquard apparatus are brought in contact with one or other
of these pins, it is thereby caused to rise vertically, giving motion simulta-
neously to one or other of the bell-cranked levers, and in consequence of the
opposite ends of the bell-cranked levers being in contact with the "clicks" or
"catches" of the "pulling levers," one or other of these catches is brought
into position to be raised by the cam or tappet levers, as may be required by
the pattern being woven. The card cylinder may be worked either hori-
zontally or vertically, but if horizontally a slight modification is required for
this purpose; in place of the bell-cranked levers we employ a lever or levers
having its fulcrum or their fulcra upon a stud made fast to the loom framing.
These levers rest in a vertical position, and are held in contact with the loose
pins by their own gravity, and the "clicks" or "catches" of the "pulling
levers are actuated by the bell-cranked levers. By this means the fric-
tional action of the pins on the cards of the jacquard apparatus, which in
ordinary looms soon produces an elongated hole, is obviated.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Keighley and Richard Shephard in the Great Seal
Patent Office, on the 22nd August 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
KEIGHLEY, of Laister Dyke, near Bradford, in the County of York, Machinist,
and RICHARD SHEPHARD, of the same Place, Foreman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of February, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said John Keighley and Richard Shephard, Her special licence that
we, the said John Keighley and Richard Shephard, our executors, admini-

page_text: strators, and assigns, or such others as we, the said John Keighley and Richard
Shephard, our 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 CIRCULAR BOX
Looms," upon the condition (amongst others) that we, the said John Keighley
and Richard Shephard, our executors or administrators, by an instrument
in writing under our or their hands and seals, or under the hand and seal of
one of us or them, should particularly describe and ascertain the nature o 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 calez. dar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Richard Shephard, on behalf of myself
and the said John Keighley, do hereby declare the nature of the said Inven-
tion, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement thereof, that is
to say:-
'
Our improvements relate to means or apparatus for operating the "clicks"
or "catches" which are attached by means of pins to one end of what are
technically termed the "pulling levers," to the other extremity of which are
also attached the "pulling catches" for actuating the circular revolving
shuttle box in order to produce any desired change in the color of the weft
employed, the chief object being to obtain greater simplicity in detail and
certainty of action. For this purpose instead of the ordinary levers, card
pins, and connecting rods, we employ a bell-cranked lever or levers having
their fulcra upon a stud made fast to the framing of the loom, the ends of the
bell-cranked levers are placed in suitable guides or brackets from the main
framing of the loom. In the bracket or guide placed immediately over the
card cylinder of the jacquard apparatus are the pins which operate these
levers. These pins are formed with heads, and are capable of rising and
falling freely, and are entirely disconnected from the bell-cranked levers:
One end of each of these bell-cranked levers rests upon one of the pins
(there being one pin for each of the levers employed) and as the cards of the
jacquard apparatus are brought in contact with one or other of these pins it
is thereby caused to rise vertically, giving motion simultaneously to one or
other of the bell-cranked levers, and in consequence of the opposite end of
the bell-cranked levers being in contact with the "clicks" or "catches" of

page_text: the "pulling levers" one or other of these "catches" is brought into position
to be raised by the cam or tappet levers as may be required by the pattern
being woven. The card cylinder may be worked either horizontally or
vertically, but if horizontally a slight modification is required for this purpose;
in place of the bell-cranked levers we employ a lever or levers having their 5
fulcra upon a stud made fast to the loom framing. These levers rest in a
vertical position, and are held in contact with the loose pins by their own
gravity, and the "clicks" or "catches" of the ".
"pulling levers are actuated
by the bell-cranked levers. By this means the frictional action of the pins on
the cards of the jacquard apparatus, which in ordinary looms soon produces an 1
elongated hole, is obviated.
13
But in order that our Invention may be the better understood reference is
made to the accompanying Sheet of Drawings, and to the letters and figures
marked thereon, similar letters representing similar parts.
DESCRIPTION OF THE DRAWINGS.
Figure 1 represents a side elevation of our improvement applied to the end
of a circular box loom; Figures 2 and 3 end elevation and plan; Figures 4,
5, and 6, details of guide bracket.
A is one of the bell-cranked levers before referred to (when the card
cylinder has a vertical motion), having the stud a as a fulcrum secured to the
frame B; C is the guide bracket projecting from the frame and containing
the pins c, which rest in the bottom of the same on their heads. It will be
noted that the upper ends of the bell-cranked levers rest upon the heads of the
pins whilst the lower ends are in contact with the "clicks" or "catches" D.
These "catches," as before explained, are connected with the "pulling
levers" E, the latter being in turn connected in the usual manner with the
"pulling catches" F.
It will at once be seen that upon the card cylinder G and card g
ascending that pin will be raised which meets with resistance from the card,
and thus through the bell crank throw the "click" or "catch" in contact with
it into gear. The card cylinder, Figure 8, we may observe we cast with
grooves in it instead of solid, thus dispensing with the necessity of boring out
a number of holes to receive the pins.
By the above arrangement we have a perfectly vertical lift of the pins c,
and thus prevent the elongation of the holes in the card cylinder.
Having now described the nature of our Invention, and in what manner
the same is to be performed, we would have it understood that what we
1

page_text: claim as and of our Invention is, the detached pins having a vertical lift and
actuating the clicks or catches by means of bell-cranked levers in the manner
shown.
Also the card cylinder made in the manner shown in Figure 8.
In witness whereof, I, the said Richard Shephard, have hereunto set my
hand and seal, this Nineteenth day of August, One thousand eight
hundred and sixty-five.
Witness,
PHILIP H. SHARP,
Patent Agent,
Leeds.
RICHARD SHEPHARD. (L.s.)