A New or Improved Automatic Device applicable for use in Fly Frames for Preventing the Stretching or Breaking of the Roving on the Stoppage of the Frame.
Year: 1890

page_text: Date of Application, 27th Jan., 1890
Complete Specification Left, 25th Oct., 1890-Accepted, 29th Nov., 1890
PROVISIONAL SPECIFICATION.
A New or Improved Automatic Device applicable for use in Fly
Frames for Preventing the Stretching or Breaking of the Roving
on the Stoppage of the Frame.
" Cotton
A communication from abroad by NIKOLAUS KRAEFFT, of the "Nadelburg
Mill, near Lichten woerth, in the Province of Lower Austria, in the Empire of
Austria, Cotton Mill Manager.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both
in the County of Lancaster, and 323, High Holborn, in the County of Middlesex,
Civil Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to fly frames with leading spindles, and its object is to
prevent the roving, on the machine being stopped, from being stretched or broken
between the drawing frame and the bobbin in consequence of the inertia of the
revolving parts.
According to the invention, this object is attained by providing a friction brake for
the lower cone drum of the driving mechanism, this brake being so actuated by the
rod carrying the belt fork that the brake shoe is pressed on to the said cone drum
or some part revolving therewith immediately before the belt is pushed on to the
loose pulley. When the belt is moved back on to the fixed pulley, a spring withdraws
the brake shoe.
In the annexed sheet of drawings, this brake apparatus is shown in front and side
elevation.
S and S¹ are respectively the fixed and loose belt pulleys mounted on the main
driving shaft, from which motion is transmitted by means of the toothed wheels q, r, s,
to the shaft of the upper cone drum B, and this latter shaft drives, by means of the
toothed wheels t, u, the delivering rollere of the drawing frame.
The upper cone drum B imparts motion to the lower one A by means of a driving
belt, as shown. From the shaft of the lower cone drum A, motion is transmitted to
the spool o by means of the toother wheels c, d, e, h, i, k, l, m, n, and the interposed
differential gearing f, g, p, the wheel p of which is keyed to the main driving shaft,
while the other wheels are loosely mounted upon the same. By the above described
transmitting mechanism, the spool o is rotated in the same direction as the flyer above
it, but with a considerably lower speed corresponding to the length of roving delivered
by the drawing frame. If, for instance, the cone drum A were to be wholly stopped
while the machine was working, the speed of the spool o would be increased, the same
would more rapidly follow the movements of the leading spindle, and, consequently,
less roving would be wound on the spool, and the length of roving between the
delivering roller and the spool would become slack. On the other hand, when the
lower cone drum A revolves at its normal speed, the roving is wound on, and when it
revolves more quickly than it ought to do the portion of the roving between the
drawing frame and the spool is stretched or even broken; the latter also occurs when
the machine is stopped, as, in this case, the parts continue rotating by reason of their
inertia.
V
The brake, by which the lower cone drum is acted upon at the right moment for
doing away with this drawback, is arranged as follows
1
On the disengaging rod R of the belt fork is mounted an adjustable ring B, having
a tappet G which is pivoted to a bracket projecting from its end surface and facing
the belt fork. In front of this tappet, a forked. lever arm C, secured to a vertical
shaft, projects across the rod R, and the said ring D is so adjusted relatively to the
arm C that the tappet G begins to carry the arm along with it, a moment before the

page_text: driving belt is wholly shifted from the fixed pulley S to the loose one S¹. The lower
end of the said vertical shaft, which is mounted in a bearing formed in the bracket N
and in a footstep bearing screwed to the floor, has secured to it an arm H carrying
the brake shoe for the lower cone drum. The brake shoe, which is of half moon
shape, may be adapted to act upon the thicker end of the cone drum A, or, if this
drum be too short, upon a separate disc mounted on the cone drum shaft. It will be
readily understood that by pressing the said half moon shaped brake shoe H against
the said drum or disc, the friction thus created will first retard the movement of the
cone drum, and, finally, when the ring D and tappet G have sufficiently turned the
arm C, the cone drum will be entirely stopped.
Besides the arm carrying the brake shoe, the lower end of the vertical shaft carries
an arm connected by a coiled spring F to the footstep bearing. This spring always
tends to keep the brake shoe off the conc drum A. The action of the spring Fis
limited by corresponding stops K provided on the footstep bearing and on the arm
carrying the spring.
Owing to this arrangement, the lower cone drum will, on the driving belt being
shifted from the fixed pulley to the loose one, be gradually brought to rest, whereby
the speed of revolution of the spool is increased and the roving slackened to a
sufficient extent to prevent its being stretched or broken.
It is obvious that the above described device for increasing the speed of the spool
may be modified in numerous ways according to the construction of the fly frame
to which it is to be applied, without departing from the nature of the invention.
Dated this 25th day of January 1890.
WM. P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
A New or Improved Automatic Device applicable for use in Fly
Frames for Preventing the Stretching or Breaking of the Roving
on the Stoppage of the Frame.
A communication from abroad by NIKOLAUS KRAEFFT, of the "Nadelburg "_Cotton
Mill, near Lichten woerth, in the Province of Lower Austria, Austrian Empire,
Cotton Mill Manager.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors 6 Lord Street Liverpool & 6 Bank Street Manchester both in
the County of Lancaster & 23 High Holborn in the County of Middlesex Civil
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 :-
This invention relates to fly frames with leading spindles, and its object is to
prevent the roving, on the machine being stopped, from being stretched or broken
between the drawing frame and the bobbin in consequence of the inertia of the
revolving parts.
According to the invention, this object is attained by providing a friction brake
for the lower cone drum of the driving mechanism, this brake being so actuated by
the rod carrying the belt fork that the brake shoe is pressed on to the said cone drum
or some part revolving therewith immediately before the belt is pushed on to the
loose pulley. When the belt is moved back on to the fixed pulley, a spring withdraws
the brake shoe.
Referring to the drawings filed with the Provisional Specification
S and S are respectively the fixed and loose belt pulleys mounted on the main
driving shaft, from which motion is transmitted by means of the toothed wheels 9, r, s,
to the shaft of the upper cone drum B, and this latter shaft drives, by means of the
toothed wheels t, u, the delivering roller of the drawing frame.
21
The upper cone drum B imparts motion to the lower one A by means of a driving

page_text: belt, as shown.
From the shaft of the lower cone drum A, motion is transmitted Lo
the spool o by means of the toothed wheels c, d, e, h, i, k, l, m, n, and the interposed
differential gearing f, g, p, the wheel p of which is keyed to the main driving shaft,
while the other wheels are loosely mounted upon the same. By the above described
transmitting mechanism, the spool o is rotated in the same direction as the flyer above
it, but with a considerably lower speed corresponding to the length of roving delivered
by the drawing frame. If, for instance, the cone drum A were to be wholly stopped
while the machine was working, the speed of the spool o would be increased, the same
would more rapidly follow the movements of the leading spindle, and, consequently,
less roving would be wound on the spool, and the length of roving between the
delivering roller v and the spool would become slack. On the other hand, when the
lower cone drum A revolves at its normal speed, the roving is wound on, and when it
revolves more quickly than it ought to do the portion of the roving between the
drawing frame and the spool is stretched or even broken; the latter also occurs when
the machine is stopped, as, in this case, the parts continue rotating by reason of their
inertia.
The brake, by which the lower cone drum is acted upon at the right moment for
doing away with this drawback, is arranged as follows:-
On the disengaging rod R of the belt fork is mounted an adjustable ring D, having
a tappet G which is pivoted to a bracket projecting from its end surface and facing
the belt fork.
In front of this tappet, a forked lever arm C, secured to a vertical shaft, projects
across the rod R, and the said ring D is so adjusted relatively to the arm C that the
tappet G begins to carry the arm along with it, a moment before the driving belt is
wholly shifted from the fixed pulley S to the loose one S'. The lower end of the said
vertical shaft, which is mounted in a bearing formed in the bracket N and in a foot-
step bearing screwed to the floor, has secured to it an arm H carrying the brake shoe
for the lower cone drum. The brake shoe, which is of half moon shape, may be
adapted to act upon the thicker end of the cone drum A, or, if this drum be too
short, upon a separate disc mounted on the cone drum shaft. It will be readily
understood that by pressing the said half moon shaped brake shoe H against the said
drum or disc, the friction thus created will first retard the movement of the cone
drum, and, finally, when the ring D and tappet G have sufficiently turned the arm C,
the cone drum will be entirely stopped.
Besides the arm carrying the brake shoe, the lower end of the vertical shaft carries
an arm connected by a coiled spring F to the footstep bearing. This spring always
tends to keep the brake shoe off the cone drum A. The action of the spring F is
limited by corresponding stops K provided on the footstep bearing and on the arm
carrying the spring.
Owing to this arrangement, the lower cone drum will, on the driving belt being
shifted from the fixed pulley to the loose one, be gradually brought to rest, whereby
the speed of revolution of the spool is increased and the roving slackened to a
sufficient extent to prevent its being stretched or broken.
It is obvious that the above described device for increasing the speed of the spool
may be modified in numerous ways according to the construction of the fly frame
to which it is to be applied, without departing from the nature of the invention.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
1. In fly frames with leading spindles, a friction brake for the lower cone drum
of the driving mechanism, said brake being so connected with the rod carrying the
belt-fork of the machine that the brake shoe is pressed against the said cone drum
immediately before the belt is shifted from the fast pulley on the loose pulley, substan-
tially as described and shown.
2. In fly frames with leading spindles, a brake for the lower cone drum, said
brake being actuated by the rod carrying the belt fork whenever the frame is

page_text: stopped and the belt is shifted onto the loose pulley, whilst, on shifting the belt
onto the fast pulley for starting the frame, said brake is made to move in the
opposite direction under the action of a spring, substantially as described and
shown.
3. In fly frames with leading spindles, a carrying device fitted upon the belt-fork-
rod and so arranged as to carry along with it, at the moment when the belt-fork-rod
is shifting the belt onto the loose pulley, a lever arm of a vertical shaft, said shaft
being provided with a brake shoe and maintained normally in a suitable position by
means of a spring, substantially as and for the purpose specified.
Datal thin 54th dive of Outabar 1800
WM. P. THOMPSON & Co.,
Agents for the Applicant.