Improvements in Slubbing, Intermediate, and Roving Frames for Preparing Fibrous Materials.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Slubbing, Intermediate, and Roving Frames for
Preparing Fibrous Materials.
I, ROBERT TAYLOR, Junior, of Asa Lees and Company Limited, of Oldham,
in the County of Lancaster, Engineer, do hereby declare the nature of this
invention to be as follows:-
My invention relates to improvements in the balancing motion of the bobbin
rail in slubbing, intermediate and roving frames, and the object of my
improvements is to diminish the friction in the slides which guide the bobbin rail.
In carrying my improvements into effect I employ any convenient number of
levers, preferably one pivoted to each spring piece of the frame, one end of each
lever comes under the bobbin rail and the other end is pivoted to a stud
secured to one of the spring pieces, each lever is made into a quadrant or segment
of a circle concentric with the stud and is provided with teeth preferably on its
periphery.
Mounted in a bracket carried by each spring piece is a stud, and secured upon
each stud is a spur pinion which gears into the teeth on one of the quadrants; also
to each stud is secured a pulley to which is connected one end of a chain which
passes over the pulley and supports a weight.
In place of a short stud carried by each spring piece one shaft the whole length
of the frame and carrying the pinions and pulleys might be employed.
We may if preferred, employ a carrier wheel between each pinion and its
quadrant; also internal in place of external teeth could be formed on the
quadrants in which case the chain may pass from the first pulley over a second
pulley.
Dated this 30th day of May 1895.
H. B. BARLOW & GILLETT,
Agents for Applicant.
Improvements in Slubbing, Intermediate, and Roving Frames for
Preparing Fibrous Materials.
I, ROBERT TAYLOR, Junior, of Asa Lees and Company Limited, of Oldham,
in the County of Lancaster, Engineer, 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 :-
My invention relates to improvements in the balancing motion of the bobbin
rail in slubbing, intermediate and roving frames, and the object of my
improvements is to diminish the friction in the slides which guide the bobbin rail.
In carrying my improvements into effect 1 employ any convenient number of
P11

page_text: levers, preferably one pivoted to each spring piece of the frame, one end of each
lever comes under the bobbin rail and the other end is pivoted to a stud secured
to one of the spring pieces, each lever is made into a quadrant or segment of a
circle concentric with the stud and is provided with teeth preferably on its
periphery.
Mounted in a bracket carried by each spring piece is a stud and secured upon
each stud is a spur pinion which gears into the teeth on one of the quadrants; also
to each stud is secured a pulley to which is connected one end of a chain which
passes over the pulley and supports a weight.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying two sheets of drawings reference being had
to the figures and letters marked thereon.
Fig. 1 is a front elevation, Fig: 2 an end view, partly in section, of a portion of
a slubbing, intermediate or roving frame to which my improved balancing motion
for the bobbin rail is applied,
Figs. 3 and 4 are similar views to Figs. 1 and 2 respectively of an alternative
arrangement, and
Fig. 5 is an end view, partly in section, of a portion of the machine showing
another arrangement.
Similar letters refer to similar parts throughout the several views.
In the drawings,-a represents one of the spring pieces of the machine frame,
b the stationary or footstep rail, c the lifting or bobbin rail and d the spindles;
these parts are of the usual or any convenient construction.
My improved balancing motion for the bobbin rail e consists of any suitable
number of levers e, say one lever for each spring piece a, a projecting portion of
each lever e comes under the lifting rail c, and another portion of each lever is
formed into a toothed quadrant or segment of a circle concentric with a stud ƒ on
which the lever is fulcrumed to the spring piece a.
In Figs. 1 and 2 the lever e has external teeth e¹ on the quadrant which gear
with a pinion secured to a short shaft h carried in a bracket i bolted to the
spring piece a and at the other end of this shaft h is secured a pulley j to which is
connected one end of a chain k which passes over the pulley and supports a
weight 7.
In Figs. 3 and 4 the quadrant lever e has internal teeth e' which gear into the
pinion g on the shaft h which has the pulley ; secured to it but in this case the
chain passes over a carrier pulley m and supports the weight / as shown.
In Fig. 5 the arrangement is very similar to that shown in Figs. 1 and 2 but in
this case a carrier wheel a gears the quadrant levere to the pinion which with
the pulley is fast upon the shaft h.
The action of the apparatus is as follows:--
"
When the bobbin rail is raised in the usual way the weight draws down the
chain and thereby turns the shaft h and pinion g which gearing into the teeth on
the quadraut levere maintains the projecting portion of the lever e in contact
with the underside of the bobbin rail the direct upward thrust of the levers
diminishing the friction in the slides of the bobbin rail; after this rail c has
arrived at its highest position and begins to descend the weight of the rail c
bearing upon the levers e depresses them and turns the quadrants and by the
teeth the pinions 9 and shafts thereby winding up the weights which offer
sufficient resistance to the falling rail c to ensure a steady and even descent.
In each arrangement a single long shaft could be substituted for the short
shafts on which the pinions g and pulleys j are mounted.
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 :-
The several combinations with the lifting or bobbin ruil, of the quadrant
leverne having external or internal teeth geared either directly or indirectly with

page_text: pinions g fixed on shafts on which are also fixed pulleys j to which are connected
chains and weights all substantially as and for the purposes herein set forth.
Dated this 27th day of February 1896.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.