Improved Means of and Apparatus for Regulating the Friction on Warp Beams or Rollers in Sizing or 'Slashing Machines.
Year: 1893

page_text: Date of Application, 8th Apr., 1893
Complete 'Specification Left, 8th Jan., 1894-Accepted, 10th Feb., 1894
PROVISIONAL SPECIFICATION.
Improved Means of and Apparatus for Regulating the Friction on
Warp Beams or Rollers in Sizing or 'Slashing Machines.
We, JEREMIAH GRAHAM, ROBERT Graham and JAMES GRAHAM of Grove
Mill, Padiham in the County of Lancaster, Cotton Manufacturers, do hereby
declare.the nature of this invention to be as follows:-
This invention has for its object regulating by novel means the amount of
friction applied to the warp beam or roller of sizing or slashing machines, and also
the application of additional friction or drag to such beam or roller, whilst the
machine is being stopped or slackened in speed, so as to prevent the warp beam
from continuing through momentum, its motion, and thereby also prevent the
overwinding of lapping of the warp between the rollers of the machine, and the
serious results consequent thereupon.
In carrying out our invention, a lever carrying a balance weight to apply more
or less drag on the friction plates is fixed on a transverse shaft, provided with a lug
or projection, which bears against a blade spring projecting vertically upwards
from one extremity of a double armed lever, whilst the other arm of the said lever
carries friction bowls, which bear against the friction plates.
To the opposite end of the balancing lever to that which is weighted is attached
a chain, which is carried under a bracket and secured to one end of a spiral spring,
the other end of which is attached to the lever, which stops the machine. Another
chain is also attached to the spiral spring and the bracket respectively, so that
when the handle lever is pushed to stop the machine, it will only allow the chain to
move the balancing lever to a limited extent, so as to give a partial turn to the
transverse shaft, and cause the lug or projection to bear against the vertical blade
spring carried by the double armed fever, whose other arm thereby exerts just
sufficient pressure to the friction plates by means of the friction bowls. The
pressure is, therefore, limited to the movement of the short piece of chain or the
like, attached to the said spiral spring and bracket respectively, beyond which
the movement of the handle lever only distends the spring.
Doted this 7th day of April 1900
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.
UUMIDED BOLT LOD
Improved Means of and Apparatus for Regulating the Friction on
Warp Beams or Rollers in Sizing or Slashing Machines.
We, JEREMIAH GRAHAM, ROBERT GRAHAM and JAMES. GRAHAM of Grove
5 Mill, Padiham, in the County of Lancaster, Cotton Manufacturers, 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 has for its object regulating by novel means the amount of friction
applied to the warp beam or roller of sizing or slashing machines, and also the
- application of additional friction or drag to such beam.or roller, whilst the machine

page_text: .
is being stopped or slackened in speed, so as to prevent the warp beam from
continuing, through momentum,, its motion, and thereby also prevent the over-
winding or lapping of the warp between the rollers of the machine, and the serious
results consequent thereupon.
In carrying out our invention, a lever carrying a balance weight to apply more
or less drag on the friction plates is fixed on a transverse shaft, provided with a lug
or projection, which bears against a blade spring, projecting vertically upwards
from one extremity of a double armed lever, whilst the other arm of the said lever
carries friction bowls, which bear against the friction plates.
To the opposite end of the balancing lever to that which is weighted is attached
a chain, which is carried under a bracket, and secured to one end of a spiral spring,
the other end of which is attached to the lever, which stops the machine. Another
chain is also attached to the spiral spring and the bracket respectively, so that
when the handle lever is pushed to stop the machine, it will only allow the
chain to move the balancing lever to a limited extent, so as to give a partial
turn to the transverse shaft, and cause the lug or projection to bear against the
vertical blade spring carried by the double armed lever, whose other arm thereby
exerts just sufficient pressure to the friction plates by means of the friction bowls.
The pressure is therefore limited to the movement of the short piece of chain
or the like attached to the said spiral spring and bracket respectively, beyond.
which the movement of the handle lever only distends the spring.
In the accompanying drawings,
Fig. 1 is a front view, and Fig. 2 an end view of our invention applied
to a sizing or slashing machine for regulating the friction on the warp beam or
roller.
Referring to Fig. 1, A is the weighted or balancing lever, which may be
provided with a balance weight B if desired, for regulating the amount of friction
or drag on the friction plates C and D, as is hereinafter more fully explained.
The balancing lever A is mounted on transverse shaft E, and is provided with
lugs or projections F, one of which bears against the blade spring G projecting
vertically upwards from one extremity of a double armed lever H, which works on
studs H cast to the bracket J, and carries friction bowls K, which bear against
the friction plate D.
Fixed to the balancing lever A is hook L, to which is secured one end of
chain L, the other end of which is carried under bracket M and attached to
the spiral spring N, which is connected to the rod proceeding from the handle
lever N' of the machine, fully shewn in detached view Fig. 3. Another short
piece of chain O is attached to the spiral spring and the bracket M respectively.
When the handle lever N' is pushed to stop the machine, the short piece of
chain only allows the balancing lever A to be moved to a limited extent, and
cause lug or projection F thereon to bear against the vertical blade_spring G
carried by double armed lever P, thereby causing the friction bowls K to apply
the necessary friction or drag to the friction plates C and D, but only the
requisite amount, because the pressure is limited to the movement of the short piece
of chain O, beyond which the movement of the handle lever only serves to distend
the spiral spring N.
The vertical blade spring G forms an essential feature of our invention. In
existing appliances, the pressure on the friction plates is often applied much too
sudden doing damage to the warp threads. The vertical blade spring G by reason
of its flexible and yielding nature renders the application of the frictional resistance
more gradual.
Fig. 4 is an enlarged side view of the double armed lever carrying the friction
bowls K and the vertical blade spring G. This spring, as here shewn, is slightly
bowed at its extremity, and fixed to the double armed lever by a bolt and screw,
which at the same time secures the bracket R having an adjusting screw S, by
which the tension of the blade spring G may be regulated.

page_text: 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 :-
1. The means or apparatus for regulating the friction on warp beams or rollers
in sizing or slashing machines, substantially as described and illustrated.
2. The vertical blade spring G applied and acting substantially in the manner
shewn and described for the purpose set forth.
3. The means represented in Fig. 3 for controlling the motion of the balancing
lever A, substantially as shewn and described.
Dated this 5th day of January 1894.
F. RICHMOND,
79, St. James Street, Burnley, Agent for Applicants.