Improved Self-releasing Brake applicable for Warp Beaming and other Machines.
Year: 1891

page_text: Date of Application, 12th Dec., 1891
Complete Specification Left, 12th Sept., 1892-Accepted, 15th Oct., 1892
PROVISIONAL SPECIFICATION.
Improved Self-releasing Brake applicable for Warp Beaming and
other Machines.
We, DAVID HENRY WILKINSON of 187, Oxford Road, Burnley, in the County
of Lancaster, Blacksmith, and CHARLES FULTON of 7, Pine Street, Burnley,
Warp Dresser, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved brake appliance, applicable for arresting
the motion of machinery expeditiously; and is designed to release in an automatic
manner the brake from the periphery of the brake wheel, immediately after the
machinery is at rest and inoperative, in readiness for the machine to be again set
in motion. This may be effected by means of the loose pulley, on which the
driving strap is shifted in stopping the machine; or, the release may be auto-
matically effected any adjacent shaft or part in motion after the stoppage of the
machine.
The apparatus is particularly applicable to beaming frames, and when so applied
a horizontal arm is preferably attached or cast to the brake lever, and its end
projects forward to a position within the rim of the loose wheel. To this end of
the arm is jointed or pivotted a L shaped lever, which being raised on the appli-
cation of the brake is brought within the circular pathway or track of a stud,
fixed to the loose pulley or wheel, by which one arm of the said lever is struck
and tilted over, whilst the other arm of the said lever takes its place. This latter
arm is then acted upon or depressed by a swell or convex surface plate secured to
and suitably timed upon the loose pulley or wheel, so as to bear upon and release
the brake from the periphery of the brake wheel, and at the same time raise the
catch link, connected to the brake lever, upon its detent until the next stoppage
of the machine, when the link is again thrown from its detent to apply the brake.
Dated this 11th day of December 1891.
THOS. RICHMOND,
79, St. James Street, Burnley, Agent.
COMPLETE SPECIFICATION.
Improved Self-releasing Brake applicable for Warp Beaming and
other Machines.
We, DAVID HENRY WILKINSON of 187, Oxford Road, Burnley, in the County
of Lancaster, Blacksmith, and CHARLES FULTON of 7, Pine Street, Burnley,
Warp Dresser, 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 an improved brake appliance, applicable for arresting
the motion of machinery expeditiously; and is designed to release in an automatic
manner the brake from the brake wheel, immediately after the machinery is at
rest and inoperative, in readiness for the machine to be again set in motion. This
may be effected by means of the loose pulley, on which the driving strap is shifted
in stopping the machine; or the release may be automatically effected by any
adjacent shaft or part in motion after the stoppage of the machine.
The apparatus is particularly applicable to beaming frames, and when so applied
a horizontal arm is preferably attached or cast to the brake lever, and its end
projects forward to a position within the rim of the loose wheel.
To this end of the arm is jointed or pivotted a L shaped lever, which, being

page_text: :
raised on the application of the brake, is brought within the circular pathway or
track of a stud or projection, fixed to the loose pulley or wheel, by which one arm
of the said lever is struck and tilted over, whilst the other arm of the said lever takes
its place. This latter arm is then acted upon or depressed by a swell or convex
surface plate, secured to and suitably timed upon the loose pulley or wheel, so as
to bear upon and release the brake lever from the periphery of the brake wheel,
and at the same time raise the catch link, connected to the brake lever, upon its
detent until the next stoppage of the machine, when the link is again thrown from
its detent to apply the brake.
In the accompanying drawings,
Fig. 1 is a partial representation of a beaming frame, to which our improve-
ments are applied.
A represents the framework of the machine; B the loose pulley driven by a
strap and capable of sliding laterally upon the drum shaft C, and is so actuated
by the depression of the foot-rail or triddle D, as to bring the said pulley in 1
frictional contact with the disc plate E, sufficient to drive the drum, to which the
said disc plate is fixed.
The foot-rail or triddle D is retained in its depressed position by the ordinary
catch link, which at this time is hooked upon a holding bracket or detent. When,
however, a warp thread is broken its drop pin falls between the periphery of two 2
rollers, one of which is a swing roller, moving outwards during the passage of the
drop pin between the said rollers, and strikes the said catch-link from the holding
bracket or detent, so as to allow the foot-rail D, to rise and liberate the loose
pulley from the disc plate to stop the machine.
The parts above enumerated are old and well understood, and form no part of 2
our invention. We will now describe the mechanism for applying and releaving
our improved brake. F represents the brake lever, from which branch two
horizontal arms G and H. To the arm H is jointed a catch-link I, which passes
through a holding bracket or detent J, and terminates in a vertical slot, through
which the catch K protrudes. This catch is connected to the lever L secured to
the axis D¹ of the foot-rail or triddle D. The weight or pressure exerted by the
brake F upon the periphery of the disc plate E is regulated by the adjustable
weight M, secured to the arm H.
The extremity of the opposite arm G, projects forward to a position within the..
rim of the loose wheel B. To this end of the said arm is pivotted a tumbler
having three fingers, 1, 2 and 3. The finger 1 is acted upon by the tooth N; the
finger 2 by the swell O; and the finger 3 by the sector P, the latter being
secured to the boss of the loose wheel, whilst the parts N and Ó are secured to its
rim.
The operation of the various parts of mechanism comprising our improved self 4
releasing brake may be thus described. In the event of a warp thread being
broken, its drop-pin expands the swing roller as hereinbefore mentioned, so as to
throw off the ordinary catch-link from its detent, allowing the footrail or triddle D
to rise by means of a weight or counterpoise in the usual way, to release the loose
wheel B, from the disc plate E, and simultaneously with this operation, the catch K,
resting on stud R, draws the sneck of the caich link I from its detent J to apply
the brake. On the application of the brake, the arm G will necessarily rise,
bringing the tumbler into position to be operated upon by the tooth N and the
swell O. The finger 1 of the tumbler is first tilted over from a vertical to a
horizontal position as seen by being in the circular pathway of the tooth N. This 5
tilting over of the finger 1 brings the finger 2 to a vertical position against the
stop G. The next turn round of the loose wheel B brings the swell O over the
bowl or finger 2, when it depresses a arm G, raising the opposite arm H sufficiently
to bring the sneck of the link I in position to be pushed upon the detent J by
means of spring S to release the brake. By the depression of the arm G, the 5
finger 3 is brought within the track of the sector P, which then tilts the tumbler
backwards, until the finger 3 bears against 'the under side of the stop G¹.
14

page_text: The warp or yarn roller and the drum on which it is mounted will, by the
release of the brake, be free to be turned in either direction to find lost ends.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
The arrangement of a self-releasing brake, substantially as described and
illustrated.
THOS. RICHMOND,
Agent.