Improvements in the Construction of Slubbing, Intermediate, and Roving Frames used in the Preparation of Cotton and other Fibrous Substances for Spinning.
Year: 1892

page_text: Date of Application, 28th Sept., 1892
Complete Specification Left, 27th June, 1893-4ccepted, 28th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Slubbing, Intermediate, and
Roving Frames used in the Preparation of Cotton and other
Fibrous Substances for Spinning.
I JOSEPH HYNES of 11 Trevelyan Street Moldgreen Huddersfield in the
County of York Carder do hereby declare the nature of this invention to be as
follows:-
This invention relates to that part of slubbing intermediate and roving frames
which drives the bobbins, the object of the invention being to drive the bobbins
direct from the back-spindle shaft by means of a strap so as to obviate the effect of
the "backlash" of toothed gearing in the ordinary way of driving and to ensure
that the bobbins shall commence to turn the instant that the spindles begin to
revolve.
On the back spindle shaft I key a small strap pulley and on the back bobbin
shaft I key a similar pulley so that the latter can be driven direct from the former
by means of an endless strap.
But it will be evident that as the bobbin lifter rises and falls this strap would
become alternately tight and slack and in order to obviate this I have the
following arrangement.
Between two spring pieces of the framing at the back of the machine at a
convenient height I fix a slotted rail on which is adjustable a double slotted
bracket. The slots in this bracket are horizontal and in them slide two brasses or
bearings carrying a short shaft or axle on which is a tightening pulley round which
the endless driving strap passes.
Above this rail I support in suitable bearings attached to the frame, a shaft on
which are keyed or fixed two hanging levers the free ends of which are slotted, so
as to embrace the ends of the short shaft or axle on which is the tightening pulley
above named.
On the same shaft I also fix another lever at about right angles to the two
before mentioned, the free end of which is also slotted and embraces the back
bobbin shaft, so that as the latter rises and falls the slotted levers cause the shaft
or axle carrying the tightening pulley to move to and fro in the horizontal slots of
the double bracket and the strap is thus kept always at a regular tension.
I use any ordinary differential motion and cone pulleys to diminish the speed as
the bobbin increases in diameter and it will be evident that as the endless strap can
only drive the bobbins as fast as the differential motion will allow, a certain amount
of "slip" of the strap will take place, but this will not impede but rather assist
the action of the differential motion and the cone strap will act as a check.
Dated this 27th day of September 1892.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in the Construction of Slubbing, Intermediate, and
Roving Frames used in the Preparation of Cotton and other
Fibrous Substances for Spinning.
I JOSEPH HYNES late of 11 Trevelyan Street and now of 39 Spring Terrace
Victoria Street Moldgreen, Huddersfield in the County of York, Carder, 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 that part of slubbing, intermediate, and roving frames
which drives the bobbins, the object of the invention being to assist in the driving
of the same direct from the back spindle shaft by means of a strap so as to
obviate the effect of the "backlash of toothed gearing in the ordinary way of
driving and to ensure that the bobbins shall commence to turn the instant that the
spindles begin to revolve.
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 annexed sheet of drawings and the following explanation thereof.
Fig. 1 is a transverse section, and Fig. 2 plan view of so much of a roving frame
as is necessary to illustrate my invention, and Figs. 3 and 4 are similar views of a
modification of the same.
a is part of the framing or spring pieces of the machine the bobbin rail, c the
spindle rail.
d the back bobbin shaft d' the front bobbin shaft, e the back spindle shaft and
el the front spindle shaft.
On the back spindle shaft e I key a small strap pulley f (see Figs. 1 and 2) and
on the back bobbin shaft d I key a similar pulley g so that the latter can be driven
direct from the former by means of an endless strap h (Fig. 1).
But it will be evident that as the bobbin rail or lifter b rises and falls this
strap would become alternately tight and slack and in order to obviate this I
have the following arrangement.
Between the two spring-pieces a of the framing at the back of the machine and
at a convenient height I fix a slotted rail i on which is adjustable a double slotted
bracket k. The slots in this bracket are horizontal and in them slide the brasses
or bearings carrying a short shaft or axle m on which is mounted a tightening
pulley n round which the endless driving strap h passes.
Above the slotted rail i I support in suitable bearings or brackets attached to
the frame a a shaft o ou which are keyed or fixed two hanging levers p the free
ends of which are slotted so as to embrace the ends of the short shaft or axle m on
which is the tightening pulley n above named.
On the same shaft I also fix another lever g at right angles to the two
levers the free end of which is also slotted and embraces the back bobbin shaft d,
so that as the latter rises and falls the slotted levers p cause the shaft or axle m
carrying the tightening pulley n to move to and fro in the horizontal slots of the
double bracket k and the endless strap his thus kept always at a regular
tension.
I use any ordinary differential motion and cone drums to diminish the speed as the
bobbin increases in diameter and it will be evident that as the endless strap h can
only drive the bobbins as fast as the differential motion will allow, a certain
amount of "slip" of the strap will take place the driven pulley g being smaller
in diameter than the driver f; but this will not impede but rather assist the action
of the differential motion and the cone strap will act as a check, the strap h
however being always kept at a proper tension the bobbins will always start to
revolve instantaneously with the spindles.

page_text: of the driving
I may here observe that other means for taking up the "slack
strap may be adapted, for example, the modification shown at Figs. 3 and 4,
wherein the slotted rail i and double bracket k are dispensed with and the
tightening pulley n is hung onto the two levers and the horizontal levers y
instead of being slotted and embracing the back bobbin shaft d are provided with
weights which give the levers p a constant backward thrust and thus cause the
tightening pulley n to keep the strap h at the required tension.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The herein described method of and apparatus for assisting the driving of
the bobbins of slubbing, intermediate, and roving frames direct from the back
spindle shaft by an endless strap in combination with means for keeping the same
always at the required teusion, in order to ensure that the bobbins shall commence
to turn the instant that the spindles begin to revolve substantially as hereinbefore
described and illustrated by the drawings annexed.
Dated this 26th day of June 1893.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.