IMPROVEMENTS. IN JACQUARD ORFANCY LOOMS
Year: 1872

page_text: LETTERS PATENT to Andrew Jackson Woodman, of the State of
Massachusetts, of the United States of America, for the Invention.
COMPLETE SPECIFICATION filed by the said Andrew Jackson Wood-
man at the Office of the Commissioners of Patents, with his Petition
and Declaration, on the 23rd July 1872, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
:Ը,
TO ALL] TO WHOM THESE PRESENTS MAY COME, I, ANDREW
JACKSON WOODMAN, of the State of Massachusetts, of the United States.
of America, send grecting.
WHEREAS I am in possession of an Invention of "IMPROVEMENTS.
IN JACQUARD OR FANCY LOOMS," and have petitioned Her most Excellent,
Majesty Queen Victoria to grant unto me, my executors, adminis-.
trators, and assigns, Her Royal Letters Patent for the same, and have

page_text: made
thereof.
Solemn Declaration unat I am Le true ana Iirst inventor
NOW KNOW YE, that I, the said Andrew Jackson Woodman, do
hereby declare that the following Complete Specification, under my hand
and seal, fully describes and ascertains the nature of the said Invention
to be as follows, reference being had to the accompanying Drawings,
of which Figure 1 is a top view, and Figure 2 a rear elevation of a
loom frame with the ordinary filling or weft stop motion, the harness
motion or operative mechanism, and the harness stop motion or
mechanism to be herein-after described.
•
Under ordinary circumstances when the filling thread of a shuttle
breaks and the loom stop motion is put in operation, the lay owing to
momentum generated in the working parts will continue to make one.
or more beats before it will stop. The harness will change every time
a beat of the lay takes place, thereby producing one or more extra :
movements of them, which before the loom can be again started require
a proper adjustment of the harness mechanism in order that the pattern
may not be irregularly woven.
My Invention saves all such extra movements of the harness, and
also all the labor and time required to effect the due readjustment of. the
parts.
I have combined with the fancy loom or its ordinary stop motion
and harness operative mechanism, a mechanism by which the draw
pawl of the pattern prism of the harness mechanism is raised and held
out of action upon the ratchet or geer of the prism, simultaneously with
or immediately after either a breakage or a running out of the filling.
:
In the Drawings A denotes the loom frame, S the stop motion,
and B a harness operative mechanism of the usual kind, the pattern
prism of the latter being. shown at a as provided with its operative
geer 6 and the draw pawl c. The prism is supported by and so as to
be capable of resting, in a vibratory frame d, and the draw pawl is held
down upon the prism geer by a spring shown at e, all being common
and well understood by weavers.
In carrying out my Invention I arrange over the draw pawl and
connect with it in manner as shown a bent lever C to turn on a rod ƒ
as a fulcrum, the shorter arm of such lever being connected. with the
longer arm of another lever D by a rod y pivoted to the two. The

page_text: lever D arranged on one end of the loom frame in manner as shown:
turns freely on a fulcrum h extended from such frame. The shorter
arm of the lever D is over a stud i, making part of or projecting from "
an arm E fixed on one end of the rocker shaft k of the operative lever
by which the take-up mechanism" is stopped by the stop, motion.
The other arm of the said operative lever is shown at n. The arm n is
that immediately in rear of the filling fork slide or carrier m of the stop
motion which when driven backwards produces a rearward movement of
the arm n, and consequently causes the shaft / to turn in its bearings.
When such takes place the arm E will actuate the lever D, whereby
the lever C will be operated so as to raise the draw pawl c, and hold
it up in a manner to prevent it from acting upon the pattern prism
geer while it may be in movement with its carrier or frame. In con-
nection with the parts above described I employ a slide o arranged at
the back of the breast beam x, and between it and the aforesaid arm n,
all being as shown. From the said slide an arm p is projected between
the shipper and the next adjacent end of the loom frame, and there
is on the slide and in front of the arm n an inclined plane or cam q,
all being as represented. A. helical spring r enveloping the slide serves
to move it in a direction towards that end of the loom at which the
shipper is placed. On the shipper being forced out of its holding notch,
and moved so as to effect the stoppage of the loom, the slide o will be
advanced by its spring, and as a consequence the inclined plane or cam q
will be moved against the arm n and will hold it back, thereby causing
the draw pawl of the pattern prism to be held up during such time as
may be necessary. When the shipper is next moved back to its holding
notch the draw pawl will fall back in place ready to operate the pattern
prism.
I claim in combination with the stop motion and the harness operative
mechanism of a fancy loom, mechanism substantially as described for
raising the draw pawl of the pattern prism and retaining it out of
action with the operative geer of such prism under circumstances. as
set forth, such mechanism consisting of the levers C, D, arm E, rock
shaft, arm n, and slide o, with its operative spring ", inclined plane
or cami q, and bent arm p, all being arranged and applied substantially
in manner and to operate as explained and represented.
I also claim the combination of the said levers C, D, arm E, rock
shaft k, arm n, slide o, spring ", cam q, and arm p, all being arranged.

page_text: and connected substantially as described, and for application to the stop
motion and harness operative mechanism of a fancy loom, as and being|
for the object as set forth.
In witness whereof, I, the said Andrew Jackson Woodman, have
hereunto set my hand and seal, this Fifth day of July, A.D. 1872.
ANDREW JACKSON WOODMAN. (L.S.)