Compounds therefor.
Year: 1886

page_text: Compounds therefor.
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 my 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 an anti-friction compound, and to a metallic box or
casing bushed or lined with the same compound to form a bearing, the said bearing
possessing great durability, and very little frictional resistance.
The said invention will be readily understood by reference to the accompanying
drawings in which
Figure 1 is a sectional elevation of a pillow block or shaft bearing bushed or
lined with the improved compound.
Figure 2 is a perspective view of a railway journal bearing similarly lined.
Figure 3 is a central sectional elevation, in perspective, of a collar bearing for an
upright spindle, of corresponding construction.
Each of these bearings, or any other adapted for carrying, sustaining or guiding '
the moving parts of any form of machinery, is formed of a retaining case A, usually
of metal and a bearing or wearing seat, or lining B, which is formed of the improved
anti-friction compound hereinafter described.
In some cases the shell A, whether it be a spindle-collar or step-piece, & pillow-
block or bearing built in one or more pieces, a simple journal bearing, or in any
other form is simply a metallic housing as in Figure 3, formed into the shape
required, and adapted to receive and hold the bearing material or bushing B by
frictional contact, or the cohesion produced between the parts A and B, by pressing
the latter, while in a plastic state, into the seat prepared for it in the former. In
other cases, however, this simple contact between the parts A and B, is inadequate
to the purposes of holding them together; and in such cases, I form one or more
locking pieces a on the contact surface of the matrix piece A, the said locking
piece a, in each case, being constructed so as to form locking ribs, or ribs and

page_text: intervening recesses, to lock and hold the material B tightly up to A, as shown in
Figures 1 and 2.
The bushing or lining part B is formed of a strong vegetable or metallic fibrous
material, such as a very hard wood, like box-wood, lignum vitae or rosewood; or
of a strong and durable paper pulp of any kind; or a mineral fibre, like asbestos or
mineral wool.
In all cases, the woody or mineral fibres are reduced as nearly as possible to a
pulp, as the first stage of its preparation. To the pulpy fibre thus prepared, is
added first about, say, forty per cent, more or less, (by weight), of an unctuous
carbonaceous matter, such as very finely powdered plumbago or graphite, and for
some purposes, notably for such bearings as sustain great weights, or which carry
journals running at a high speed, about twenty per cent (by weight), of powdered
sulphur. The sulphur need not be added for bearings carrying small weights
running at a low speed.
Any one of the above mentioned fibrous substances may be used singly, or any
selection or number of them may be added together. To the mixture as above
prepared is added as much liquid albumen, of a strongly adhesive quality, as will
work the mass into a plastic paste, and the paste so prepared is then pressed, with
a considerable pressure, into the form or mould adapted to receive it. This form
or mould may be the casing A, adapted to finally form a part of the bearing as
above described; or it may be simply a matrix to hold the material together and
in place, until it is dry and hard, after which it may be turned out of the mould or
matrix, and then cut or dressed into the form desired for any specific bearing.
Many attempts have heretofore been made to produce good practicable, and
durable anti-friction bearings with plumbago or graphite, as a durable lubricant,
held in place by a raw fibrous substance and an adhering mixture, have been more
or less successful, but such bearings hitherto made have been crude and unsatis-
factory, owing to the great difficulty of fabricating the compound with the crude
or unpulped fibre, which acted much like hair in mortar, making the mass lumpy,
harsh, of uneven texture or fabrication, and impracticable in its general application.
By first pulping the fibrous substance, however, and then cementing the substances
together with a strong cementing material like albumen, a compound is produced
which will reduce the frictional resistance of a journal mounted on it to the
lowest possible amount, so much so that no oil or any other lubricant need be used
on it. Its durability also is of a very high order, while the fabrication of bearings
of any size or form from it is perfectly practicable.
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 Correspondents I declare that what I claim is :-
First. An improved compound for journal bearings or machinery supports, formed
of a vegetable or mineral fibre reduced to a pulpy mass, and incorporated with
plumbago and an adhesive substance such as a strong albumen.
Second. In a compound for journal or other machinery bearings, a constant and
durable lubricant formed of an unctuous carbonaceous matter, such as, finely
powdered graphite, held in any prescribed form by an admixture of a vegetable or
mineral fibrous pulp, and a cementing material in the form of an albumen, sub-
stantially as described.
1+
Third A compound for journal or other machinery bearings formed of a
vegetable or mineral fibrous material reduced to a pulp, mixed with finely powdered
graphite and a cementing albumen, then pressed into the required form, and after
that thoroughly indurated by drying.
Fourth. An anti-friction journal-bearing-compound formed of any suitable
vegetable or mineral fibrous material reduced to a pulp incorporated with finely
powdered graphite and a cementing albumen, in combination with powdered
sulphur, substantially as described.

page_text: Fifth. A journal or other machinery bearing, formed of a fibrous pulp mixed
with finely powdered graphite and an adhesive albumen, thoroughly incorporated
by mixing, and pressed into a metallic casing provided with one or more dove-
tailed lugs or recesses for holding the compound to the said metallic casing.
Sixth. In a journal bearing or machinery support, a metallic box or housing.
provided on its inner face with one or more dovetailed ribs or recesses, adapted to
receive and hold in place a bushing or lining of a plastic material, pressed into the
said housing and allowed to indurate therein. .
Date : ALL
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.