Improvements in Chenille Cutting Machines.
Year: 1893

page_text: Date of Application. 7th Feb., 1893-Accepted, 11th Mar., 1895
COMPLETE SPECIFICATION.
Improvements in Chenille Cutting Machines.
We, OSWALD LEVER, of No. 2805 North Second Street, Philadelphia,
Pennsylvania, Mechanical Engineer, and WILLIAM SMITH GRUNDY, of No. 2809
North Second Street, Philadelphia, Pennsylvania, Mechanical Engineer, both in
the United States of America, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described. and
ascertained in and by the following statement :—
Our invention relates to chenille-cutting machines, and has for its object the
provision of mechanism operating to raise and lower the grooved guide roll over
which the chenille threads pass to be operated upon by the rotating cutting roll,
and by the same operation to raise and lower simultaneously the let-off roller.
Heretofore in machines of this character, where it is necessary to separate the
cutting roller from the grooved roller, the former is raised (instead of the latter
being lowered, as in the present machine) by a hand lever acting directly on the
roller, and owing to the heavy weight of the cutter, was a laborious occupation..
Our invention operates to lower the light grooved roller, leaving the cutter in
its normal position, and it consists in the combination with the grooved cutting roll,
of a double link arm connecting the same with both the let-off roll and pivotally
with the shaft of the take-up roll, a connecting or supporting link arm pivotally
connected to said double link and to a lever pivoted on a bracket bolted to the
frame of the machine, by means of which hand lever the supporting link and
(through it) the double link with the roller connected therewith, may be raised or
lowered at pleasure.
In the accompanying drawings.
Figure 1 is a front elevation partly in section.
Figure 2 an end view partly in section; and
Figure 3 a side elevation of the link and lever mechanism detached.
The frame of the machine is indicated at A, in which is mounted the cutting
roller B by means of journals 6 set in recesses in the frame, with set screws b¹ to
adjust it laterally.
The said journal b passes through one of said recesses on one side of the frame
and supports a pulley E around which is placed a driving belt E', which is driven
from a pulley E on one end of a lower driving shaft G mounted in the frame of
the machine. The other end of said shaft G has a bevel gear wheel G¹ which
meshes with gear G' on the end of a shaft, by means of which gearing, con-
driven which operates the take-up N.
5 structed as usual, the friction roller M
The latter roller N rests upon the material to be wound up, and is mounted upon a
shaft n resting in a fork-bearing n' supported from the frame A of the machine.
The shaft m of the friction roll M has its main bearing in the frame of the
machine, and passes through a recess in a connecting piece adjustably secured by
a slot and set screw to one end of the double link D whereby the latter may be
adjusted as to length of drop.
The link D which has thus a pivotal swing on the shaft, is moved up and down
as is also the let-off roll and guide roll connected thereto by the action of the lever
hereinafter mentioned. A guide post W' is provided between the let-off arms of
5 two double links D D on each side of the machine to properly guide the chenille to
be cut and wound up, and acting to some extent as a tension device.
The two double links D are fastened together by rods W W passing from one to
the other. On the other end of said double link D is provided an open bearing d
in which rests the shaft carrying the let-off S. On the same side as the let-off
50 is pivotally connected at d' to the double link D, a supporting arm or link T to
which is pivotally connected at its other end as at r, a lever R. A bracket L

page_text: projects outwards from the frame of the machine, and carries a stops hanging
loosely on the pin S¹ which secures the lever end to the bracket. Both the lever R
and the link T work against this stops in the up and down movements. As the
essence of our invention lies in the fulcrummed double link D carrying the grooved
roll and let-off roll, it is obvious that other means than the arms T and lever R
may be employed for temporarily supporting the link D in its normal position and
moving it up and down when desired.
The grooved roller H is constructed as usual, with grooves C, for the entrance
of the knives 6 on the cutting roller B which is also constructed as usual except
as hereinabove mentioned. The said grooved roller H is mounted in the apex of
the double link D and is carried up and down thereby when necessary to adjust the
same vertically with relation to the cutting roller B. It is thus apparent that
instead of the workman raising and lowering the heavy cutting roller B to separate
it from the grooved roller H, as in the old machines, the operation is rendered
comparatively easy by moving the lever R up or down against the stops, which
limits its movement. The double link D being fulcrummed at oue end on the
shaft m, is raised when the lever is raised, thereby carrying up the grooved
roller and the take-up, to normal position, as shown in Figure 2. When it is
desired to lower the grooved roller, the lever R is moved down against the
stop s, as shown in Figure 3.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:-
I. The combination with the frame A, the cutting roller B mounted therein, and
mechanism to drive the said roller, of a grooved roller H, a double link D in the
apex of which the same is mounted, a let-off roller supported by said double
link D on its free arm, the other arm of said link D being hinged directly or
indirectly to the frame of the machine, with means to temporarily sustain said
link and its supported rollers in normal position; substantially as described.
II. The combination with the frame A, the cutting roller B mounted therein,
and mechanism to drive said roller, of a grooved roller H, a double link D in
the apex of which the same is mounted, a let-off roller supported by said double
link on its free arm, the other arm thereof being hinged on the shaft of the
friction take-up roller, a lever R hinged to the frame of the machine, and con-
necting mechanism between said lever and the free end of the link D whereby
the latter may be temporarily supported in its normal position and also be moved
up and down when desired; substantially as described.
III. The combination with the frame A, the cutting roller B mounted therein,
and mechanism to drive the said roller, of a grooved roller H, a double link D
in the apex of which the same is mounted, a let-off roller supported by said
double link D on its free arm, the other arm thereof being hinged on the shaft
of the friction take-up roller, a fixed bracket L, a lifting arm. T between said
link and bracket, a stop s, and a lever R operating to raise and lower said lifting
arm when desired, substantially as and for the purpose described.
IV. The combination with the frame A, the cutting roller B mounted therein,
and mechanism to drive the said roller, of a grooved roller H, a double link D
on each side of the frame of the machine in the apex of which the roller is
mounted, guide posts W₁ whereby the chenille may be guided and tensioned, a
let-off roller supported by said double. link D on its free arm, the other arm
being hinged on the shaft of the friction take-up roller, a fixed bracket L, a
lifting arm T between said link and bracket, and a lever R operating to raise and
lower said lifting arm when desired; substantially as and for the purpose described.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.