Year: 1887

page_text: Date of Application, 14th Feb., 1887
Complete Left, 1st Nov., 1887
Complete Accepted, 9th Dec., 1887
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in that class of journal bearings in which a
bushing or wearing surface, in part, is formed of an anti-friction, or self lubricating
material.
The invention in this case consists in forming the bushing of vulcanized fibre, and
in forming grooves or pockets in said bushing which grooves or pockets are filled
with a plastic lubricating material, which is indurated in place and which is a complete
and perfect anti-friction material, perfectly adapted to use in journal or other machine
bearings, especially for.small bearings adapted to a high speed.
The invention will be readily understood by reference to the accompanying drawing
in which,
Figure 1 is a sectional elevation of a bearing formed in this improved manner, and
seated in a metallic case or shell.
Figure 2 is a similar sectional view of a bearing without a metallic case or
shell.
In carrying my invention into operation, I make the bushing or wearing surface of
the bearing of vulcanized fibre A, and this may or may not be encased in a metallic
shell B, as may be required for different purposes. The metallic shell is used where
the pressure on the fibre bushing A is sufficiently great to injure, or press out of shape
the bushing part without such metallic support, otherwise the bushing A of vulcanized
fibre is alone sufficient for the purpose.
The bushing A is constructed with recesses or pockets a, of a sufficient size and
г

page_text: depth to receive a filling a¹ of an anti-friction compound adapted to cause the
journal or other machine bearing running therein, to run without any additional
lubrication.
This anti-friction bearing material, I form of finely powdered plumbago, mixed
with a binding fibre for large work and without the binding fibre for small work.
The fibre best adapted to this use is mineral fibre like asbestos, or vegetable fibre like
paper pulp.
In all cases, however, the plumbago is to be mixed with a strong size like albumen,
liquid silicate of soda, or any similar strongly adhesive substance. The plumbago
mixed with this adhesive substance is pressed into the grooves or pockets a in a plastic
state, and is allowed to indurate in the said cavities or pockets, and when thoroughly
dry and hardened is ready for use.
The cavities or pockets a are best made in the form of inclined or spiral grooves,
and a journal running in a bearing thus formed is borne partly on the vulcanized fibre,
and partly on the anti-friction filling a', and thus is made to run constantly cool, and
without any other lubrication than that afforded by the anti-friction material a¹; at
the same time the vulcanized fibre is so durable and so frictionless a material, that
very fine and delicately adjusted machinery, such as dynamo-machines, sewing machines
and such other machinery, may be adjusted on these bearings and will run on them
for a long period.
Metallic bushings having spiral grooves formed therein and packed with an anti-
friction material of some sort, have been attempted for this purpose, but the metallic
parts of the bushing so formed, by contact with the running journal or other moving
part, generated so much heat as to render such construction but poorly adapted to
the purpose. The vulcanized fibre bushing and the pockets filled with anti-friction
compound, as above described, however, make a perfect bearing for light weight and
high speed machinery.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: CHE CHO
1, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 improvements in that class of journal bearings in which a
bushing or wearing surface, in part, is formed of an anti-friction, or self lubricating
material.
The invention in this case consists in forming the bushing of vulcanized fibre, and
in forming grooves or pockets in the said bushing which grooves or pockets are filled
with a plastic lubricating material, which is indurated in place, and which is a complete
and perfect anti-friction material perfectly adapted to use in journal or other machine
bearings, especially for small bearings adapted to a high speed.
The invention will be readily understood by reference to the drawings filed with my
provisional Specification in which,
Figure 1 is a sectional elevation of a bearing formed in the improved manner, and
seated in a metallic case or shell.
Figure 2 is a similar sectional view of a bearing without a metallic case or
shell.
In carrying my invention into operation, I make the bushing or wearing surface of
the bearing of vulcanized fibre A, and this may or may not be encased in a metallic
shell B, as may be required for different purposes. The metallic shell is used where
the pressure on the fibre bushing A is sufficiently great to injure, or press out of shape
the bushing part without such metallic support, otherwise the bushing A of vulcanized
fibre is alone sufficient for the purpose.
The bushing A is constructed with recesses or pockets a of a sufficient size and
depth to receive a filling a' of an anti-friction compound adapted to cause the
journal or other machine bearing running therein, to run without any additional
lubrication.
This anti-friction bearing material, I form of finely powdered plumbago, mixed
with a binding fibre for large work and without the binding fibre for small work.
The fibre best adapted to this use is mineral fibre like asbestos, or vegetable fibre like
paper pulp.
In all cases, however, the plumbago is to be mixed with a strong size, like albumen,
liquid silicate of soda, or any similar strongly adhesive substance. The plumbago
mixed with this adhesive substance is pressed into the grooves or pockets a in a plastic
state, and is allowed to indurate in the said cavities or pockets, and when thoroughly
dry and hardened is ready for use.
The cavities or pockets a are best made in the form of inclined or spiral grooves,

page_text: and a journal running in a bearing thus formed is borne partly on the vulcanized fibre,
and partly on the anti-friction filling a', and thus is made to run constantly cool, and
without any other lubrication than that afforded by the anti-friction material a¹. At
the same time the vulcanized fibre is so durable and so frictionless a material, that very
fine and delicately adjusted machinery, such as dynamo machines, sewing machines
and such other machinery, may be adjusted on these bearings and will run on them
for a long period.
Metallic bushings having spiral grooves formed therein and packed with an anti-
friction material of some sort, have been attempted for this purpose, but the metallic
parts of the bushing so formed, by contact with the running journal or other moving
part, generated so much heat as to render such construction but poorly adapted to
the purpose. The vulcanized fibre bushing and the pockets filled with anti-friction
compound, as above described, however, make a perfect bearing for light weight and
high speed machinery.
Having now particularly described and ascertained the nature of the said invention
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 :-
First A journal or other machine bearing, bushing or wearing surface formed of
vulcanized fibre with re-entering pockets or recesses formed on its wearing surface,
said pockets being filled with an anti-friction compound of plumbago and an adhesive
substance substantially as described.
Second An antifriction bushing or wearing surface for journals and similar
machinery formed of vulcanized fibre, with diagonal or spiral grooves formed in its
wearing face and a lubricating material having plumbago for its lubricating property
pressed into the said spiral grooves, substantially as described.
Third A bushing or wearing part for journals and similar machine bearings, formed
of a metallic shell, an enclosed wearing part formed of vulcanized fibre, and pockets
formed in the wearing face thereof and packed with a lubricationg mixture of powdered
plumbago, and an adhesive substance, substantially as described.
Dated this 17th day of August 1887.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.