IMPROVEMENTS IN SPINNING MACHINERY
Year: 1884

page_text: I HENRY HARRIS LAKE, of the firm of Haseltine Lake, and Co. Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the pature
of my Invention for "IMPROVEMENTS IN SPINNING MACHINERY" 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 spinning machinery and has for its object to produce a
top-roll which shall be more durable and which shall operate more efficiently than
those heretofore used.
The said Invention consists essentially in the provision of a top-roll having an
endless belt operating, under tension, and also in the peculiar and novel devices for
creating the tension, all as hereinafter described.
In the accompanying Drawing
Figure 1 is a side elevation of one of my improved top-rolls in operative position
relative to the lower-roll.
Figure 2 is a front view of a pair of my improved top-rolls, in operative position
relative to the lower-rolls, showing the tension-devices.
In the said Drawings A designates the frame-piece which supports the top-roll
standard B. C designates the lower-roll which is corrugated or ribbed upon its
surface and is mounted upon the shaft c in the usual manner.
D designates the top-roll which is mounted upon the shaft d, and E designates
the tension-pulley which is mounted in half-bearings in an adjustable bracket e.
F designates the endless belt which runs over the top-roll D and tension-pulley e.
The ends of the top-roll shaft & are journaled in the half-bearings b formed upon
said standards B. In the upper end of each standard B is formed an elongated
socket opening at one side of the standard and arranged to receive a lug which
projects from an adjustable support G. Each of these adjustable supports-two of
which are similarly mounted upon each standard-is formed with an arm g upon
which rests one of the brackets e of the tension-roll. 6' designates an adjusting-
screw which passes into the upper end of the standard and through a screw-socket
formed in the lug g¹ which projects from the adjustable support G,

page_text: H. designates an arm which is secured to the frame-piece A and to the upper end
of which is secured a cylindrical stem h¹. h designates a link which is hook-shaped
at its upper end so as to embrace the upper side of the shaft d. The stem h¹
extends through the upper end of the link so that the latter is free to slide upon
the said stem. The stem is screw-threaded at its upper end at which point it
carries a thumb-screw h³. Surrounding this stem and confined between the base of
the screw h² and the end of the link his a coiled tension spring h³ which acts
expansively, and the tension of which is varied by the screw ².
Now the operation of the structure above described is as follows'; the permanent
mean tension upon the belt F is produced by the adjustment of the support G
through the medium of the screw b₁ and the variable tension is produced by
tightening the spring h³. The fibers pass, from the drawing-rolls, between the
lower and top-rolls in the direction indicated by the arrow in Figure 1. The belt F
is of leather, or leather-covered material, or of any composition suitable for the
purposes of a top-roll: The lower-roll being ribbed or corrugated, it is necessary
that the leather should not be repeatedly brought into contact with the corru-
gations at the same points. Heretofore this action has been prevented by making
the top-roll of greater diameter than the lower-roll, but this arrangement was
objectionable because the guide-fingers were necessarily placed at a considerable
distance from the meeting-faces of the rolls, in order to clear the larger roll.
I prevent the constant wear in the same places, by the lower-roll, by using the
belt and as the rolls are of the same diameter, the guide-fingers may be set close to
the meeting faces of the rolls. The rolls may, of course, be of different diameters if
desired. All tendency to slip is avoided by my construction' and when the belt
becomes worn another may be readily supplied.
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
1st A belt arranged to pass around the top-roll and around a tension-pulley, for
the purposes set forth.
2nd The combination with the top-roll, of the pulley E, the bracket e, and
support G, and the belt F, arranged substantially as described.
3rd The combination with the top-roll D and tension-pulley E; of the band F,
and the lower roll C as described.
4th The combination with the standard B and arm H, of the support G, the
screw b¹, the bracket e, the link h the stem h¹, screw h² and spring h³ the top-
roll D, tension-pulley E and belt F, all constructed and arranged substantially as
described.
"
5th The standard. B. provided with the elongated socket and the screw 6¹ in
combination with the adjustable support G having the lug g¹ provided with its
screw-socket and the arm,g, for the purposes set forth.
Dated thia 14th ilos of Tuna 1884