Improvements in Self-acting Mules and Twiners.
Year: 1892

page_text: Date of Application, 19th Jan., 1892
Complete Specification Left. 4th Oct., 1892-Accepted. 5th Nov., 1892 *
PROVISIONAL SPECIFICATION.
Improvements in Self-acting Mules and Twiners.
I JAMES ROBERT WAIN of East Bank Fallowfield, Manchester in the County
of Lancaster Mechanic, do hereby declare the nature of this invention to be as
follows
This invention relates to self-acting males and twiners employed for spinning
and doubling fibrous substances and consists principally of an improved automatic
brake to be applied to one or both ends (or to the centre of each half) of the tin
roller which drives the spindles and is an improvement upon the invention for
which Letters Patent No. 8407 dated 21st May 1889 were granted to me.
According to my present invention instead of mounting a brake drum loosely
upon the tin roller shaft I fix the same firmly onto the shaft by means of pinch
screws or otherwise. To the frame of the spindle carriage 1 bolt a bracket provided
with a vertical slot in which a stud is adjustable.
On this stud as a fulcrum is mounted a horizontal lever the other end of which
carries a finger hereinafter alluded to, and to this lever near its fulcrum is fixed
a stud carrying a bell crank lever. The horizontal arm of this lever has an open
slot through which the adjustable stud or fulcrum before mentioned passes, and the
vertical arm thereof is curved at the top and forms a brake to act upon the
brake drum.
When the spindle carriage "runs out" the finger before named coming against
an inclined plane fixed on the frame end raises the free end of the horizontal lever
thereby slightly lifting the bell crack lever and applying the brake, the direction
in which the tin roller is revolving helping to pull on the brake.
.
As soon as the "backing-off" cominences the reverse action throws off the brake
which can fall back to a certain extent owing to the width of the open slot being
more than the thickness of the stud or fulcrum, and a catch hanging from part of
the frame end holds the brake off until the carriage commences to
"
run in to
the roller beam when the finger leaves the inclined plane and the weight of the
horizontal lever holds the brake in the inoperative position until the carriage has
run out again to the end of its stretch.
73
10th day of January 1892
GEORGE DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Self-acting Mules and Twiners.
I JAMES ROBERT WAIN of East Bank Fallowfield Manchester in the County
of Lancaster, Mechanic, 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 self-acting mules and twiners employed for spinning and
doubling fibrous substances and consists principally of an improved automatic brake
to be applied to one or both ends (or to the centre of cach, half) of the tin
roller which drives the spindles and is an improvement upon the invention for
which Letters Patent No. 8407 dated 21st May 1889 were granted to me.
The nature of my said invention and the manner in which the same is to be
performed or carried into practical effort, will be readily understood on reference
to the annexed sheet of drawings and the following explanation thereof.

page_text: Fig. 1 is an end view of the spindle carriage and part of a mule end of a self-
acting mule with my improvements shown as applied thereto, and Fig. 2 is a similar
view illustrating a slight modification thereof, a being the end frame of the spindle
carriage, part of the mule end and e the tin roller shaft.
According to my present invention instead of mounting the brake pulley d
loosely upon the tin roller shaft c I fix the same firmly upon the said shaft by
means of set screws or otherwise. To the frame a of the spindle carriage 1. bolt a
bracket e provided with a vertical slot in which a stud g is adjustable.
On this stud, as a fulcrum is mounted a horizontal lever the other end of
which carries a finger or stud provided with a roller or bowl i, and to the lever h
near its fulcrum is fixed a stud k carrying a bell-crank lever 1.
The horizontal arm of this lever has an open slot through which the adjustable
stad or fulcrum 9 passes and the vertical arm thereof is curved and forms a brake
to act upon the brake pulley d.
When the spindle carriage a "runs out," the bowl i coming against an inclined
planem fixed on the mule end raises the free end of the horizontal lever thereby
slightly lifting the bell-crank lever and applying the brake, the direction in
which the tin-roller is revolving (shown by the arrow) helping to pull on the
brake.
As soon as the "backing-off" commences the reverse action throws off the
brake which can fall back to a certain extent owing to the width of the open
slot being more than the thickness of the stud or fulcrum g, and a catch a hanging
from part of the frame holds the brake off until the carriage a commences to
run-in to the roller beam, when the bowl leaves the inclined plane m and the
weight of the horizontal lever holds the brake in the inoperative position until
the carriage a has "run out" again to the end of its stretch.
"
"
In the modification shown at Fig. 2 the same letters of reference are employed
to indicate the like parts, the modification being that by reversing the position of
the bell crank lever the open slot is dispensed with and a weight substituted.
The hanging catch n is also dispensed with being found unnecessary.
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 :-
1
The construction and application to the tin-roller shafts of the improved]
automatic brake for the purpose of stopping the spindles when the spindle carriage
has run out and releasing them as soon as the "backing-off" commences
substantially as herein before described and illustrated by the drawings annexed.
"
Dated this 30th day of September 1892.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.