Improvements relating to the Traverse of the Roving Guides of Slubbing, Roving, Spinning, and like Machines.
Year: 1898

page_text: Date of Application, 23rd Mar., 1898-Accepted, 7th May, 1898
COMPLETE SPECIFICATION.
Improvements relating to the Traverse of the Roving Guides of
Slubbing, Roving, Spinning, and like Machines.
I, GEORGE WASHINGTON CHADWICK, 1126, Spruce Street, Chester, Pennsylvania,
United States of America, Spinning Overseer, 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 :-
This invention relates to improvements in the traverse of the roving guides of
slubbing, roving, spinning and like machines, and consists essentially of the con-
struction and arrangement of the several parts, which will be more fully hereinafter
described and claimed.
By the devices heretofore employed the leather covering of the rolls has been
materially injured by lost motion, which in turn injures the yarn being acted upon
to a considerable extent. It is the intention of the present invention to overcome
the disadvantages heretofore encountered by causing the rolls on the spinning frame
and mules to run considerably longer by the positive traverse motion, and the same
may be applied to slubbers, speeders, and fine roving frames, which would be a vast
saving to manufacturers, besides the improvement in the quality of yarn.
The object of the present invention, therefore, is to employ, in connection with
the ordinary mechanism, a heart motion which gives the roving traverse a positive
action and takes up the lost motion incidental to machines of this character, the
parts being simple and effective in their construction and operation, strong and
durable, easily and readily applied without changing the structure in the
the cost of
present form of machines, and comparatively inexpensive in
manufacture.
In the accompanying drawing,
Figure 1 is an end elevation of a portion of a spinning machine, showing the
improved device applied thereto.
Figure 2 is a detail view looking towards the roller, and showing the heart motion
in position.
Figure 3 is a similar view with the parts of the device shown by Figure 2
removed.
Figure 4 illustrates detail views of the heart-shaped cam broken away and showing
the construction thereof.
Referring to the drawing, wherein similar numerals of reference are employed to
indicate corresponding parts in the several views, the numeral 1 designates the back
roll, as clearly illustrated in Figure 3, which includes as a part thereof a worm-roll 2.
Engaging the said worm-roll is a worm-wheel 3 mounted upon a shaft 4 held by a
standard 5. Also mounted upon a roving rod or guide 8 is a bracket 6, which has a
lower slot 7 to permit movement of said bracket backward and forward over the
shaft 4. The roving guide is mounted and operated in the usual way. Adjacent to
and above the mechanism thus far set forth, a front drawing roll 9 and an inter-
mediate roll 10 are located and formed of fluted steel. Above the said rolls are other
rolls 11 and 12, which are covered with leather, and in rear of the same is a third

page_text: roll 13 also supplied with said covering and coacting with the back roll 1. Adjacent
to the said rolls and the mechanism set forth is a roving bobbin 14 carrying the
yarn, and at a suitable point below is a spindle-bobbin 15, adjacent to which is a
guide 16 carried by a board 17. The roving-guide and bracket is supplied with
trumpets for the roving to pass therethrough.
On the same shaft 4, giving bearing to the worm wheel 3, and over which the
bracket 6 is mounted, a heart-shaped cam 18 is also fixed, the bearing thereof being
located near the base, as shown in Figure 4, and in a diametrical line with the said
bearing, at the opposite side, the said cam is supplied with a spring-actuated pin 19,
movable in a socket 20, and retained in position by a cross-pin 21 passing through a
slot therein. The outer end of the pin 19 is beveled, as at 22, and is adapted to
contact with oppositely disposed projections 23 and 24 on the lower portion of the
bracket 6, and the bearing thereof is passed through the opening 7 in the
bracket 6.
In use, the cam operates the roving rod or guide in the usual way until the point
and the hollow of the heart come to the projections 23 and 24, when the spring
plunger 19 pressing on one projection forces the roving guide along so as to bring
the other projection into the hollow of the heart, thereby taking up lost
motion.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
In slubbing, roving, spinning and like machines, the combination of a reciprocating
roving rod or guide provided with a bracket having two pins, a heart-cam provided
with a spring-pressed plunger adapted to engage said pins, and means for actuating
said cam, substantially as described.
Dated this 22nd day of March 1898.
H. B. BARLOW & GILLETT,
Agents for Applicant, 17, St. Ann's Square, Manchester.