IMPROVEMENTS IN ROLLERS FOR WRINGING MACHINES, AND WHICH ARE PARTLY APPLICABLE FOR USE AS TRUCK WHEELS, FURNITURE CASTERS, AND THE LIKE
Year: 1878

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for the Invention of
"IMPROVEMENTS IN ROLLERS FOR WRINGING MACHINES, AND WHICH ARE
PARTLY APPLICABLE FOR USE AS TRUCK WHEELS, FURNITURE CASTERS,
AND THE LIKE." A communication from abroad by George Payson Clark,
of Windsor Locks, Connecticut, United States of America.
COMPLETE SPECIFICATION filed by the said William Robert Lake at tho
Office of the Commissioners of Patents on the 5th April 1878.
WILLIAM ROBERT LAKE, of the Firm of Haseltino, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN ROLLERS FOR WRINGING
MACHINES, AND WHICH ARE PARTLY APPLICABLE FOR USE AS TRUCK WHEELS,
FURNITURE CASTERS, AND THE LIKE." A communication from abroad by George
Payson Clark, of Windsor Locks, Connecticut, United States of America.
The improved rollers or rolls herein-after described are particularly intended for
use in large power-driven machines used in bleacheries and dye works, but are also
adapted for machines used for domestic purposes, and for various other purposes for
which squeezing rollers are used.
Wringing rollers or rolls have heretofore been made of elastic sectional rings with
intermediate metallic sections, and also with intermediate wads between the inetallic
and the elastic sections. In such rolls the elastic sections have always heretofore
had smooth sides, and the metallic sections wero made to engage therewith by
baving the raised ribs or shoulders formed in the metallic sections forced into the
elastic sections, or into the wad interposed between them. Wringing rollers have
also been made of sectional rings articulated together by means of intermediate
metallic vertebrae, the several sections being compressed after they have been
mounted on the shaft between flanges at the end of the roll.
The roller forming the subject of the present Invention is an improvement upon
the rollers for wringing machines previously known. It is composed of a series of

page_text: sections of rubber arranged side by side on a central shaft, and clainped together by
pressure applied in opposite directions between metallic flanges bearing against the
two end sections, and in this particular the roller is not unlike some rollers which
have previously existed.
The special feature of this Invention consists in having each section soparately
compressed and held between metallic discs, whereby the density of the roller is
more uniform throughout, and its consequent capacity to better resist the abrasion and
wear to which its surface will in use be subjected is very greatly increased over
what it is practicable to accomplish when cach section is placed upon the shaft
without having been previously condensed, and the whole series of sections are
compressed at the same time between the two end flanges of the roller.
In the accompanying Drawing,
Figure 1 is a view in perspective of a complete roller constructed according to
this Invention.
Figure 2 is partly a longitudinal section.
Figures 3 and 5 are sectional views of a section of india-rubber composing the
roll, and the metallic disc plates which compress the same, these Figures showing
the rubber section before and after it is compressed by the discs.
Figure 4 is a front view of one of the said discs.
Figures 3, 4, and 5, aro drawn to an enlarged scale.
A represents an annulus of india-rubber or other material suitable for a roll of
this class, the faces of which are formed with a recess when moulded, substantially
as shewn at a. B, B, are metallic discs, whose exterior faces are formed substan-
tially as shown at Figure 4. They have a central hole b to fit the shaft C, and are
furnished with radial flanges c whose inner faces correspond in form with the
recesses a in the faces of the rubber rings A. These metallic discs are arranged in
pairs, as shown in Figure 2, so as to form in connection with suitable screw bolts d
connecting the same, a clamp to hold and compress the rubber annulus. The thick-
ness of each annulus should be so great as compared with the aggregate length of
the hub portions e of the discs, that when a pair of fellow discs are applied to its
faces, as shown at Figure 3, the inner faces of the hubs will not meet by a space
which will represent the extent to which the rubber will be condensed upon turning
the screw bolts so as to bring their hubs into contact, as shown at Figure 5.
Each section of the said roll when ready to be arranged upon the central roller
shaft C will be composed of a rubber annulus compressed between two metallic
discs whose radial flanges, with the exception of the two at the extreme ends of the
roller, are embedded in the sides of the annulus, and whose hubs furnish a central
support for the rubber. The several sections so prepared which are to compose the
roller are then to be mounted upon a common shaft, and are kept from turning
thereon by means of a spline or feather h, which fills a suitable key seat o cut in the
hub portion of each disc and in the shaft C. The whole series of sections must also
be clamped together by means of a screw collar D, or any other suitable device, as,
for instance, a key through the shaft, which will force the whole series of sections
against a shoulder on the shaft and hold them face to face in close contact so as to
exclude the admission of water into the joints formed by the abutting sections. The
portions of the discs which come in contact should be turned off or brought to a true
face.
As the roller described is more particularly intended for use in large power-driven
machines employed in bleacheries and dye works it is necessary that its density
should be as uniform as possible. By the construction described this result can
be easily accomplished, and also by making the rubber rings of greater or less
thickness relatively to the lengths of the hub portions of the fellow discs which
are to clamp them, the desired degree of density for different requirements can be
obtained.
Another feature of this Invention consists in the circumstance that any one of
the sections which compose the said wringing roller can be usefully employed as a
wheel suitable for hand trucks, furniture casters, and similar service.

page_text: Figures 6, 7, and 8 of the Drawings represent a castor or truck wheel constructed
from a section similar to those which make up the wringing roll above described.
The only difference between such structure and any one of the sections of the roller
is that the compressing metallic discs are each provided with a hub, which extends
beyond the plane of the rim. It is apparent that there can be thus obtained for
hand trucks and the like a useful wheel composed of two compressing discs, each of
which is provided with a flange, an annular shoulder, and a metallic hub, in combi-
nation with an annular rim of india-rubber or other non-sounding material.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it understood
that I claim,
First. A roller for the purposes specified composed of sectional rings combined
with a central shaft, each section consisting of a ring of india-rubber or other suit-
able material compressed between metallic clamps, as above described.
Second. A roller for the purposes specified composed of sectional rings, each section
consisting of india-rubber, or equivalent elastic material, supported centrally upon a
metallic hub, and compressed laterally between metallic clamps, the whole series of
sectional rings being combined with each other, and their common shaft, as above
described.
Third. A roller for the purposes specified composed of sections, each section con-
sisting of two metallic compressing discs, each of which is provided with a flange, an
annular shoulder, and a hub, in combination with an annular rim of vulcanized
india-rubber or other non-sounding material, as above described.
Fourth. The modification of this Invention, whereby the same is adapted to the
construction of a wheel or caster, as above set forth.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Fifth day of April, in the year of our Lord One
thousand eight hundred and seventy-eight.
W ROBT. LAKE. (L.S.)