Improvements in Slubbing, Intermediate, and Roving Frames used in the Preparation of Fibrous Materials for Spinning.
Year: 1891

page_text: Date of Application, 18th Apr., 1891
Complete Specification Left, 18th Jan., 1892-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Slubbing, Intermediate, and Roving Frames used
in the Preparation of Fibrous Materials for Spinning.
JOHN THOMPSON of 186 Fletcher Street Bolton in the County of Lancaster
Assistant Mill Manager do hereby declare the nature of this invention to be as
follows:-
This invention relates to the construction of slubbing intermediate and roving
frames used in the preparation of cotton and other fibrous substances for spinning
and especially to that part of such frames which equalizes the winding of the
roving or thread onto the bobbins by gradually decreasing the speed of the latter
in proportion as their diameter increases the object of the invention being to dispense
with the double cones and strap usually employed for that purpose and to obtain
the same effect in a more perfect and reliable manner by more economical means.
For this purpose I dispense with one of the long cone pulleys altogether and use
only a single coue pulley the surface of the cone being formed at double the usual
inclination. In gear with this cone is a short movable friction wheel which is
mounted on a shaft above the long cone, upon a key sliding in a long groove in the
face of the shaft so that the friction wheel and shaft necessarily revolve together
at the same time that the former can be moved along the shaft from one end of the
long cone to the other. The boss of the friction wheel is made with a groove or
neck at each side in which takes a double fork attached to the usual rack which
ordinarily actuates the strap fork when the double cones are used.
The long shaft is driven by toothed gearing from the "twist-wheel," and as the
friction wheel is moved by the rack along the cone it drives the cone drum shaft
at a gradually decreasing speed.
In order to keep the cone always in contact with the friction wheel, the cone is
mounted on a swing frame which is balanced or weighted in such a way as to
keep the cone always pressed upwards against the friction wheel, or if preferred
the cone shaft may be mounted in fixed bearings and the friction wheel shaft be
mounted in vertical slots so that it can rise and fall.
If the latter arrangement be adopted I find it preferable to balance the spur
wheel at one end of the long shaft by a plain wheel of equivalent weight at the
other end of the same. In either case the spur gearing will have to be so arranged
that it will always remain in gear notwithstanding the rise or fall of the cone or
friction wheel.
Dated this 17th day of April 1891.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Slubbing, Intermediate, and Roving Frames used
in the Preparation of Fibrous Materials for Spinning.
Jons THOMPSON of 186 Fletcher Street Bolton in the County of Lancaster
Assistant Mill Manager 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 the construction of lubbing intermediate and roving

page_text: frames used in the preparation of cotton and other fibrous substances for spinning,
and especially to that part of such frames which equalizes the winding of the roving
or thread onto the bobbins by gradually decreasing the speed of the latter in pro-
portion as their diameter increases, the object of the invention being to dispense
with the double cones and strap usually employed for that purpose, and to obtain
the same effect in a more perfect and reliable a manner by more economical
means.
The nature of my said invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference to
the sheet of drawings hereunto annexed and the following explanation thereof.
Fig. 1 is an elevation and Fig. 2 an end view of so much of a roving frame as is
necessary to illustrate my invention and Fig. 3 is a plan view showing a modification
thereof as hereinafter explained.
For the purposes of my invention I dispense with one of the long cone pulleys
altogether and use only a single cone pulley a the surface of the cone being formed
at about double the usual inclination.
In gear with this cone pulley a is a short movable friction wheel which is
mounted on a long shaft c upon a key c' sliding in a long groove in the face of the
shaft c, so that the friction wheel and shaft c necessarily revolve together, at the
same time that the former can be moved along the shaft c from one end of the long
cone to the other.
с
The boss of the friction wheel is made with a groove or neck dat each side in
which takes a double fork e attached to the usual rack ƒ which ordinarily actuates
the strap fork when the double cones are used.
Either the cone shaft a' or the shaft c is driven by toothed gearing g from the
"twist wheel" according to whether the cone a or the friction wheel b is required
to be the driver, and in either case the friction wheel is moved by the rack along
the cone in such a direction as will cause the bobbins to be driven at a gradually
decreasing speed.
In Figs. 1 and 2 the cone a is shown as the driver in which case it is mounted
in fixed bearings in the frame and is driven by the toothed gearing y from the
"twist wheel" and in this case the shaft c upon which the friction wheel slides is
carried upon a spring frame i carried on pivots or axles at each end, and is
balanced or weighted by a long bar in such a way as to keep the friction
wheel always pressed upwards in contact with the cone a as it is moved along
from end to end of the latter. In this case I find it preferable to balance the
small spur wheel me at one end of the shaft r by a plain wheel m' of equivalent
weight at the other end.
In the case illustrated at Fig. 3 where the shaft e is the driver it will be mounted
in fixed bearings above the cone a instead of below it, and the gearing 5 will drive it
instead of driving the conc.
Only a portion of the shaft is shown in this view in order more clearly to show
the swing frame i and the cone a which it carries.
It will be secu that the shaft which trausmits the motion to the bobbins
forms one of the pivots upon which the frame swings and that the spur gearing n
is so arranged that it will always remain in gear notwithstanding the swinging of
the frame.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed J declare that what I
claim is :-
The improvements in slubbing, intermediate and roving frames consisting
principally in the combination of the single cone pulley with the friction wheel
sliding with a key in a groove on a shaft, parallel to the axis of the cone pulley,
either the cone shaft or the friction wheel shaft being mounted in a swing frame, so
balanced as to keep the two surfaces always in contact as the friction wheel is

page_text: moved along the shaft in order to gradually decrease the speed of the bobbins as
their diameter increases substantially as herein before described and illustrated by
the drawings annexed.
Dated this 16th day of January 1892.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.