IMPROVEMENTS IN GEAR-WHEELS
Year: 1883

page_text: LETTERS PATENT to William Robert Lake, of the firm of Haseltine Lake
& C°; Patent Agents Southampton Buildings, London. "IMPROVEMENTS IN
GEAR-WHEELS" Communicated to him from abroad by Richard Kirby Noyo,
George Urban, Junior, and Barnim Frederick Ortman, all of Buffalo, New
York, United States of America
.
:
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 6th November 1883.
WILLIAM ROBERT LAKE, of the firm of Haseltine Lake & Co Patent Agents
Southampton Buildings London, "IMPROVEMENTS IN GEAR-WHEELS." [a com-
munication to him from abroad. by Richard Kirby Noye, George Urban, Junior,
and Barnim Frederick Ortman, all of Buffalo, New York, United States of
America]
The object of this invention is to produce a noiseless gear-wheel which can be
constructed at comparatively small expense and which possesses sufficient strength
to enable it to be used with safety in machines in which considerable power is
transmitted by the wheel, for instance in roller.mills employed in the manufacture
of flour, in hoisting machines, and the like.
"
Heretofore it has been proposed to construct. noiseless gear-wheels of leather or
of paper or paper board, but such wheels do not possess the requisite degree of
strength to render them capable of use in heavy machinery and they do not last
long even in light machinery. To render such wheels more durable it has been
proposed to employ metallic plates between the plates of paper or leather, but this
construction is objectionable because the narrow metallic plates wear rapidly
producing a fine metallic dust which cuts and wears the intermediate layers of
paper or leather and soon destroys the wheel.
In the present improved wheel these difficulties are overcome. This wheel is
constructed as hereinafter set forth.
The body of the improved gear-wheel is composed of layers of vulcanized fibre
laid one upon the other and glued, or otherwise cemented, together preferably by
the application of pressure. A metallic disc is arranged against one side of the
Prina 71

page_text: body and constructed with a sleeve or hub which is fitted in a central opening in
the said body. The disc and hub are preferably constructed in one piece of cast
iron, and the hub is socured to the shaft by a key or other suitable device. A
metallic washer is fitted against the opposite side of the body and surrounds the
hub. The disc body and washer are secured together by screw bolts which pass
through openings in the washer and body and are tapped into screw threaded
openings in the disc.
In constructing the body a suitable number of discs of vulcanized fibre are
employed each having stamped or cut in it a central opening of the proper size to
fit snugly around the hub of the wheel to be constructed. The several discs are
then glued or cemented together and secured between templets provided at their
peripheries with teeth of the same form which are to be formed on the wheel.
The templets are secured to the body by screw-bolts passing through openings
which have been previously drilled through the body composed of the said disos.
One of the said templets is provided with a hub which fits in the central opening
of the body. The latter secured between the templets is placed in a suitable press
to dry. Upon boing removed from the press it is placed in a gear cutting machine
by which the cogs or teeth are cut in the face of the body in the same manner in
which such teeth are cut in metallic wheels. The templets are then removed and
the body is secured between the disc and washer by bolts the body being preferably
also cemented to the said disc and washer.
The teeth of the body.are made somewhat wider than the teeth of the metallic
pinion which is used in connection with the wheel so that the metallic teeth mesh
with the teeth of the body between the projecting peripheries of the disc and
washer. The latter parts bear against the ends of the teeth and support the same
and prevent them from spreading. When this composite wheel is used in a
machine in which heat is generated, which would cause the body to shrink when
the wheel is first put in use the shrinkage can be taken up from time to time by
tightening the bolts.
The vulcanized fibro of which the body is constructed is very strong, hard and
durable, and wears evenly and smoothly and does not swell or warp when exposed
to moisture, in which respects it differs from paper, paper board, leather, raw hide
and similar material.
In order to cheapen the wheel without materially reducing its desirable qualities,
layers of junk or manilla board may be placed between the layers of vulcanized
fibre.
The disc and washer are constructed on their inner sides with radial ribs which
embed themselves in the adjacent layers of vulcanized fibre or junk board and
assist in securing the body between the disc and washer.
When the teeth of the body have become worn to such an extent as to render
a renewal of this part desirable, this is readily accomplished by removing the
washer and body from the hub and inserting a new body in the place of the one
so renewed thereby enabling the working face of the wheel to be renewed without
removing the hub from the shaft.
The improved gear-wheel is produced at comparatively small expense and is
adapted for use in all cases in which a noiseless gear-wheel is desirable. It is
particularly advantageous in roller mills for manufacturing flour because of its
even and uniform working whereby the operation of the rollers is rendered more
uniform than that of rollers which are driven by metallic-gear-wheels, and
because of the absence of noise which renders this gear-wheel as desirable in this
respect as a belt driving mechanism, while it possesses the great advantage of a
positive movement over the belt driving mechanism, so, that it retains the
important advantage of a gear mechanism which positively maintains the proper
differential speed of the rollers while doing away with the objectionable noise
created by ordinary gear driving mechanism.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Patent Office on the 6th May
1884.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co Patent Agents,
Southampton Buildings, London, "IMPROVEMENTS IN GEAR-WHEELS" A com-
munication to me from abroad by Richard Kirby Noye, George Urban, junior,
and Barnim Frederick Ortman, all of Buffalo, New York, United States of
America.
This invention relates to gear-wheels and has for its object to provide a noiseless
gear-wheel which can be constructed at comparatively small. expense and which
possesses sufficient strength to enable it to be used. with safety in machines in
which considerable power is transmitted by the wheel, for instance in roller mills
employed in the manufacture of flour, in hoisting machines and the like.
Heretofore it has been proposed to construct.noiseless gear-wheels of leather
or of paper or paper board, but such wheels do not possess the requisite degree of
strength to render them capable of use in heavy machinery, and they do not last
long even in light machinery. To render such wheels more durable it has been
proposed to employ metallic plates between the plates of paper or leather, but
this construction is objectionable because the narrow metallic plates wear rapidly,
producing a fine metallic dust which cuts and wears the intermediate layers of
paper or leather and soon destroys the wheel.
In the present improved wheel these difficulties are overcome. This wheel is
constructed as hereinafter set forth.
.. In the accompanying drawing
Figure 1 is a sectional elevation of the improved gear-wheel with an ordinary
cast pinion engaging therewith.
Figure 2 is a sectional elevation of the improved gear-wheel at right angles to
Figure 1.
Figure 3 is an inside view of a portion of the washer.
Similar letters of reference indicate corresponding parts in the several figures. -
A indicates the body of the improved gear-wheel which is composed of layers
of vulcanized fibre, laid one upon the other and glued or otherwise cemented
together, preferably by the application of pressure.
:
B indicates a metallic disc arranged against one side of the body A and
constructed with a sleeve or hub b which is fitted in a central opening in the
body A. The disc B and hub b are preferably constructed in one piece of cast
iron, and the hub b is secured to the shaft b' by a key or other suitable device.
C indicates a metallic washer which is fitted against the opposite side of the
body A and which surrounds the hub b. The disc B, body A. and washer C are
secured together by screw bolts d, which pass through openings in the washer C
and body A, and are tapped into the screw threaded openings in the disc B.
In constructing the body A, a suitable number of discs of vulcanized fibre are
employed, each having stamped or cut in it a central opening of the proper size
to fit snugly around the hub 6 of the wheel to be constructed. The several discs
are then glued or cemented together and secured between templets provided in
their peripheries with teeth of the same form as those which are to be formed on
the wheel. The templets are secured to the body A by screw-bolts passing through
openings g which have been previously drilled through the body composed of the
said discs. One of the said templets is provided with a hub which fits in the
central opening of the body. The latter secured between the templets is placed
in a suitable press to dry. Upon being removed from the press it is placed in
a gear cutting machine, by which the cogs or teeth are cut in the face of the body
in the same manner in which such teeth are cut in metallic wheels. The templets

page_text: are then removed and the body is secured between the disc B and washer C by the
bolts d, the body being preferably also cemonted to said disc and washer.
The teeth of the body A are made somewhat wider than the teeth of the metallic
pinion H, so that the metallic teeth engago with the teeth of the body A between
the projecting peripheries of the disc B and washer C, The latter parts bear
against the ends of the teeth and support the same, and prevent them from
spreading. When this composite wheel is used in a machine in which heat is
generated, which would cause the body A to shrink when tho wheel is first
put in use, the shrinkage can be taken up from time to time by tightening
the bolts d.
The vulcanized fibre of which the body A is constructed is very strong, hard
and durable, wears evenly and smoothly, and does not swell or warp when exposed
to moisture, in which respects it differs from paper, paper board, leather, raw hido
and similar material.
In order to cheapen the wheel without materially reducing its desirable qualities,
layers of junk or manilla board i may be placed between the layers of vulcanized
fibre i¹, as represented in Figure 1.
The disc B and washer C are constructed on their inner sidos with radial ribs k
which embed themselves in the adjacent layers of. vulcanized fibre or junk board
and assist in securing the body A between the disc and washer
When the teeth of the body A have become. worn to such an extent as to render
a renewal of this part desirable, this is readily accomplished by removing the
washer C and body A from the hub b, and inserting a new body A in the place
of the one so removed, thereby enabling the working face of the wheel to bo
renewed without removing the hub b from the shaft.
The improved. gear-wheel is produced at comparatively small expense, and is
adapted for use in all cases in which a noiseless gear-wheel is desirable. It is
particularly advantageous in roller mills for manufacturing flour, because of its
even and uniform working, whereby the operation of the rollers is rendered more
uniform than that of rollers which are driven by metallic gear-wheels, and because
of the absence of noise which renders this gear-wheel as desirablo in this respect
as a belt driving mechanism, while it possesses the great advantage of a. positive
movement over the belt driving mechanism, so that it retains the important
advantage of a gear mechanism which positively maintains the proper differential
speed of the rollers, while doing away with the objectionable noise created by
ordinary gear driving mechanism.
Having thus fully described the said invention as communicated to me by
my. foreign Correspondents and the manner of performing the same I wish it
understood that I Claim ;-
First. A gear-wheel having a non-metallic noiseless body A, constructed. wholly
or partially of vulcanized fibre, and having cogs or teeth formed in the said body,
substantially as set forth.
Second. In a gear-wheel, the combination with a body A constructed wholly
or partially of layers of vulcanized fibre comented together and having cogs or
teeth formed in the said body, of metallic discs B.and C provided on their inner
sides with ribs & and secured to opposito sides of the body A, substantially as
set forth.
In witness whereof I the said William Robert Lako have hereunto set my hand
and seal this Sixth day of May in the year of Our Lord One thousand eight