IMPROVEMENTS IN APPLYING AND OPERATING THE HEDDLE FRAMES OF Looms in
Year: 1885

page_text: "
I, JAMES ROBERTS, a subject of the Queen of Great Britain, residing in the City
of Philadelphia, in the County of Philadelphia, State of Pennsylvania, United
States of America, Manufacturer, do hereby declare the nature of my invention for
IMPROVEMENTS IN APPLYING AND OPERATING THE HEDDLE FRAMES OF Looms
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
"
My invention comprehends an improved means of removably applying the
beddle frames, and an improved means for operating said heddle frames from below
as contradistinguished from above. I am not the first to make a heddle frame
removable, nor yet to operate the heddle frames from below; what I have invented
is the specific means for accomplishing the said results which are hereinafter
described and claimed.
In the accompanying drawings, I have represented so much of the frame of a
loom as is necessary for the complete understanding of my improvements.
In the drawings,
Figure 1 is a front elevation of the apparatus, parts however being broken away
to more clearly exhibit construction.
Figure 2 is a side sectional elevation of the same, section being supposed in a
vertical plane projected on the line a-a of Figure 1, and sight being taken from
the right hand of said Figure 1.
Figure 3 is a perspective detail of the rocker frames and their levers removed
from the frame of the loom.
Figure 4 is an illustrative detail in front elevation, of my improved means for
removably connecting the heddle frames to the framing bar.
Figure 5 is an inside end elevational view of one of the heddle brackets.
Similar letters of reference indicate corresponding parts.
,
In the drawings, A is the frame of the loom, which may be of any preferred
description according to the character of the loom itself. B is the warp beam,
O the breast beam, and D the cloth beam of said loom. b is a roller över
which the warp threads E are passed before they are carried through the two
bealds or heddle frames F F1 represented. d is a fluted rollør for securing the.
-
.

page_text: spreading of the cloth upon the cloth beam. G is the low shaft, suitably journalled
in bearings g, to which shaft motion is imparted in any common manner.
H is a cam shaft, suitably supported in bearings h, upon which are mounted, in
the two-heddle frame apparatus represented, two cams II.
The toothed wheels J J1, respectively mounted upon the low shaft and cam shaft,
serve to transmit motion from said low shaft to said cam shaft.
The heddle frames are respectively mounted upon upright rods K K¹, which
I term the heddle carriers, and which are supported and adapted to be moved in an
approximately vertical direction within a carrier frame L, fixed to or forming
a part of the frame of the loom, and provided with slide bearings for said heddle
carriers.
M Mare rocker frames, journalled upon a rocker shaft O fixed in the frame
work, and respectively provided with or formed into levers N N¹ which, in the
mounting of the parts, stand in the path of the cams and conveniently contain
anti-friction rollers n n¹ to ease the thrust of said cams against said levers. The
rocker frames, represented in perspective in Figure 3, are connected at their
forward extremities with the heddle carriers, so that the thrust of the cams
operating against the levers occasions the rocking of their connected rocker frames
and their consequent lift or drop of the heddle carriers and their supported
heddles.
It will be observed by reference to Figures 2 and 3, that all of the rocker frames
which have each one rearwardly extending lover and two arms for connection with
the heddle carriers K, are mounted upon a common shaft, and are of such construc-
tion and relative proportions as to lie in a nest or one within the other, the points
of bearing of each frame upon the common shaft being widely separated, a mode
of application rendered possible by the form of the depending connecting cross
bar of each frame.
Each of the levers is, moreover, upon the same side of the frames, the right hand
side being selected in the apparatus shown, by which location of application of the
levers the placing of the cams close together upon their shaft is rendered possible.
This construction and application of the frames gives excellent results in the
matter of compactness and simplicity.
P is an idler pulley suitably housed in the frame, around which passes or to
which is connected the stocks Q, respectively connected to the two heddle frames,
as shown in Figure 1.
The heddle frames F F are supported upon a framing bar R, which latter is the
device to which the upper extremities of the heddle carriers are represented as
connected, and said heddle frames are secured to said framing bar by the heddle
brackets S, Figures 4 and 5, the latter being as to their socket portions s adapted
to slide endwise on the framing bar, and as to their upturned flanges s' being
provided with mortices 82 in which respectively are adapted to be entered tenons f
or other projections formed as a part of the heddle frame.
When the heddle brackets are in place upon the framing bar and engaged as to
their mortices with the tenons of the heddle frames, they are adapted to be fixed
in such position by set screws T, or kindred fastening devices.
It is obvious upon the unloosening of the fastening devices the heddle brackets
can be slid apart upon the framing bar which carries them, and the heddle frame
be removed, while, conversely, the application of the frame can be effectuated by
the sliding together of the heddle brackets so that their mortices engage the tenons
of the frame,
It is obvious that the operation of the beddle frames and their contained heddles
is occasioned by the rotation of the cam shaft and the consequent thrust of its
cams against the levers of the rocker frames, to the end, through the instrumen-
tality of the heddle carriers, of raising or lowering, with a positive motion, the
heddle frames, the stocks serving to draw down one frame and keep the lever
with which the rocker frame of said heddle frame is connected against the acting
face of its actuating cam, while the other frame is being lifted,

page_text: The set of the cams upon the cam shaft and the configuration of their acting
faces is such as to effectuate the proper relative rise and fall of the respective
heddle frames.
It is also obvious that by enlarging the number of the levers, rocker frames, and
heddle carriers, the invention may be adapted for use with looms provided with
a larger number of heddle frames than two.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare what
I claim is
1. In combination, a heddle frame F provided with tenons f, a framing bar R,
heddle carriers K, means for operating the said heddle carriers, a pair of heddle
brackets S provided with sockets 8 by means of which the brackets are mounted
and adapted to have a longitudinal movement upon the framing bar and likewise
provided with mortised flanges s² 81 for engagement with the tenons of the frame,
and means for securing the said brackets S to the framing bar R, substantially as
described.
2. In combination, a heddle frame F provided with tenons f, a framing bar R,
heddle carriers K, means for operating the said heddle carriers, a pair of heddle
brackets S provided with sockets s by means of which the brackets are mounted
and adapted to have a longitudinal movement upon the framing bar and likewise
provided with mortised flanges 82 sl for engagement with the tenons of the frame,
and set screws T for securing the said brackets in given positions upon the framing
bar R, substantially as described.
3. The combination of the heddle frames F F¹, the heddle carriers K K³, means
for connecting said heddle frames to said heddle carriers, means for operating the
said heddle carriers, the stocks Q the idler pulley P for said stocks, the carrier
frame L, the rocker frames M M¹ provided with levers N N¹, the rocker shaft O,
the cams TT adapted to tread upon the levers N N', the cam shaft H, and suitable
means for actuating said cam shaft, substantially as set forth.
4. The combination of a series or nest of rocker frames M M¹ each of which is
provided with two arms for connection with the heddle carriers, with two widely
separated points of bearing upon a common rocker shaft, and with a rearwardly
extending lever, all of which levers are upon corresponding sides of the said
frames, a rocker shaft O common to all of said frames,-a cam shaft H,-cams I I¹
upon said shaft which tread separately upon the respective levers of the frames,-
heddle carriers K Kheddle frames F F¹-means for connecting the said heddle
frames to said heddle carriers, the stocks Q, and the carrier frame L, substantially
as set forth.