Year: 1898

page_text: I, JULES DEVALLÉE, of 60, Rue Watt, Roubaix, Nord, in the Republic of France,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to weight-gear for pressure-rollers.
Weight or pressure gear for pressure rollers, such for instance as are employed
in washing machinery in wool-combing mills, generally consist of a lever fitted
to the side of the frame of the apparatus and weighted at its end by a weight
or spring and which between the weight and its pivots rests upon the pivots
of the pressure or squeezing-rollers. The weight does not rest directly upon
the above named lever but upon a second lever which is connected with the
first named lever by means of a rod.
As generally constructed the pressure or squeezing-rollers are provided with
a yielding covering which consists of several layers of hemp rope over which
are wound several layers of a woollen strip. When the machine is at rest the
pressure-rollers, which are rotated with the lower rollers by friction, must be
relieved of weight as otherwise the yielding covering thereof is pressed flat.
Furthermore there exists the disadvantage that the pressure-roller, when the
machine is again started, is not immediately carried with the under roller but
slides upon the same whereby the woollen strip which runs between the rollers
is torn. This sliding of the pressure-roller is repeated at every rotation so that
the woollen strips are frequently torn and there is consequently a great deal of
waste.
In order to relieve the pressure-rollers of weight the attendant raises the
a wooden block. As a
weight of the weighted lever and supports it upon
weighted lever is fitted to each side of the pressure-roller the attendant must both
when weighting the pressure-roller or relieving it of weight, run right round
the machine whereby a considerable amount of time is lost..
Furthermore, this arrangement has the disadvantage that the levers which
project laterally, are in the way of the attendant when joining the torn woollen
strips or when attending to other duties required by the machine.
Now, according to this invention in order to obviate the above named disad-
vantages, the pressure-levers of the rollers are arranged not laterally, that is to
say, at right angles to the middle line of the rollers, but above the rollers and
parallel to the middle line thereof, in such a manner that the two levers of the
rollers extend in opposite directions. By these means it is possible to provide
a raising device which can be operated from either side of the apparatus and
which is arranged above the rollers, that is to say, in a position in which it in
no way hinders the attendant when manipulating the material to be fed between
the rollers.
a suitable arrangement of my invention as applied to a wool washing"

page_text: machine the upper pressure-rollers which are mounted in side supports on the
frame of the machine, are pressed down in their bearings by levers weighted
by weights, the said levers being pivotally connected together in pairs without
the employment of an intermediate rod between them.
One of the levers of each pair is single armed whilst the other has two arms
the longer of which is provided with a weight and the shorter of which is sup-
ported upon a pressure-piece. The pressure-piece is, preferably, not rigidly
secured but is acted upon by a spring which surrounds a screwed spindle con-
nected to the pressure-piece and can be put in tension by a hand-wheel working
on the said screwed spindle. The screwed spindle extends through the pressure-
piece and also through the short arm of the lever and is at its lower end pivotally
connected to the frame or to a bracket secured to the said frame. Near the
pressure or squeezing-roller is a second shaft supported transversely to the
frame of the apparatus or parallel to the rollers, the said shaft being provided
at the outer end, or at each end, with a hand-wheel which can be conveniently
manipulated from the outside, or with a belt-pulley which can be driven by
suitable machinery. Upon the other end of the shaft there is keyed a worn
which gears with a worm-wheel mounted upon a longitudinal shaft. Upon this
longitudinal shaft there is keyed a cam or the like which operates an arm or
the like that comes in contact with the single armed levers from below so that
by rotating the cam both single armed levers can be simultaneously raised.
When there are several pairs of rollers in the machine, the longitudinal shaft
is advantageously so lengthened that a corresponding number of cams, arranged
in a complementary position, is provided thereon and the levers can be raised
successively. To relieve the pressure-rollers of weight it is only necessary to
rotate the hand-wheel or the belt pulley on the worm-shaft.
Dated the 4th day of April 1898.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
I, JULES DEVALLÉE, of 60, Rue Watt, Roubaix, Nord, in the Republic of France,
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 weight-gear for pressure-rollers.
Weight or pressure gear for pressure-rollers, such for instance as are employed
in washing machines in wool-combing mills, generally consists of a lever fitted
to the side of the frame of the apparatus and weighted at its end by a weight
or spring and which between the weight and its pivots rests upon the pivots
of the pressure or squeezing-rollers. The weight does not rest directly upon
the above named lever but upon a second lever which is connected with the
first named lever by means of a rod.
As generally constructed the pressure or squeezing-rollers are provided with
a yielding covering which consists of several layers of hemp rope over which
are wound several layers of a woollen strip. When the machine is at rest the
pressure-rollers, which are rotated with the lower rollers by friction, must be
relieved of weight as otherwise the yielding covering thereof is pressed flat.

page_text: Furthermore, there exists the disadvantage that the pressure-roller, when the
machine is again started, is not immediately carried with the under roller but
slides upon the same whereby the woollen strip which runs between the rollers
is torn. This sliding of the pressure-roller is repeated at every rotation so that
the woollen strips are frequently torn and there is consequently a great deal of
waste.
In order to relieve the pressure-rollers of weight the attendant raises the
weight of the weighted lever and supports it upon a wooden block. As a
weighted lever is fitted to each side of the pressure-roller the attendant must, both
when weighting the pressure-roller or relieving it of weight, run right round
the machine, whereby a considerable amount of time is lost.
In addition, this arrangement has the disadvantage that the levers, which
project laterally, are in the way of the attendant when joining the torn woollen
strips or when attending to other duties required by the machine.
Now, according to this invention in order to obviate the above named disad-
vantages, the pressure-levers of the rollers are arranged not laterally, that is to
say, at right angles to the middle line of the rollers, but above the rollers and
parallel to the middle line thereof, in such a manner that the two levers of the
rollers extend in opposite directions. By these means it is possible to provide
a raising device which can be operated from either side of the apparatus and
which is arranged above the rollers, that is to say, in a position in which it in
no way hinders the attendant when manipulating the material to be fed between
the rollers.
In the accompanying drawings; -
Figure 1 is a front view of a wool washing machine having my improvements
applied thereto.
Figure 2 is a plan thereof, and
Figure 3 is a side view of a complete washing machine.
The upper pressure-rollers which are mounted in side supports on the
frame of the machine, are pressed down in their bearings by levers D and N
weighted by weights F, the said levers D) and N being pivotally connected
together in pairs at without the employment of an intermediate rod between
them.
The lever N of each pair is single armed whilst the other D
has two arms the longer of which carries the weight F and the
shorter of which is supported upon a pressure-piece o. The pressure-
piece o is, preferably, not rigidly secured but is acted upon by a spring p
which is wound about a screwed spindle m connected to the pressure-
piece o and can be put in tension by a hand-wheel e working on the said screwed
spindle m. The screwed spindle m extends through the pressure-piece o and also
through the short arm of the lever D and is at its lower end pivotally connected
to the frame or to a bracket n secured to the said frame. Near the pressure
or squeezing roller h is a second shaft b supported transversely to the frame of
the apparatus or parallel to the rollers, the said shaft b being provided at the
outer end or at each end with a hand-wheel M which can be conveniently
manipulated from the outside, or with belt-pulleys which can be driven by suit-
able machinery. Upon the other end of the shaft b there is keyed a worm t
which gears with a worm-wheel mounted upon a longitudinal shaft G. Upon
this longitudinal shaft G there is keyed a cam or the like H which operates an
arm or the like I that comes in contact with the levers N from below so that
by rotating the cam H both levers N can be simultaneously raised (Figure 3).
When there are several pairs of rollers in the machine, the longitudinal shaft G
is advantageously so lengthened that a corresponding number of cams H arranged
in a complimentary position, is provided thereon and the levers can be raised
successively. In the arrangement illustrated four pairs of rollers and four cams H
are shewn To relieve the pressure-rollers h of weight it is only necessary to
rotate the hand-wheel M or the belt pulley on the worm-shaft.

page_text: 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
Weight gear for pressure-rollers wherein the pressure levers N are arranged
above the pressure-roller and parallel to the axial line thereof, are directly
pivoted to the weight levers D and are adapted to be raised by cams or the like H
operated by hand or by suitable mechanical means, substantially as herein-
before described and illustrated.
1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.