An Improved Composition for Journal and other Bearings.
Year: 1890

page_text: Date of Application, 21st July, 1890
Complete Specification Left, 31st Mar., 1891-Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
An Improved Composition for Journal and other Bearings.
We, HERMANN KIRSCHBAUM, Engine-driver, and ALBERT SCHNITZER,
Merchant, both of Stendal, in the Empire of Germany, do hereby declare the
nature of this invention to be as follows:-
Our invention relates to a composition for journal and other bearings the
composition being of such a nature that the bearings manufactured from it do not
require to be oiled but simply to be kept damp with soapy water.
In carrying out our invention we take about
375 gr.
of sawdust
1 kg. of pure pulverized metallic iron
500 gr. of graphite and
500 gr. of china-clay.
The above ingredients are mixed up with enough varnish and vaseline oil and a
small quantity of black soap to make it into a thick plastic consistence. The varnish
and vaseline oil are used in equal proportions.
The composition is then pressed in a cold state into suitable moulds of the
desired form.
Bearings made of this composition possess the following advantages over other
bearings, videlicet :-
The cost of production is 60 to 70 per cent. below that of bearings made from
brass.
The bearings do not require to be oiled but simply to be kept damp with
soapy water.
Should the bearings become dry they would not get hot for a long time; a rail-
way vehicle for instance, provided with bearings made of our composition would run
dry for 600 kilometers without becoming hot.
Dated the 21st day of July 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
An Improved Composition for Journal and other Bearings.
We, HERMANN KIRSCHBAUM, Engine-driver, and ALBERT SCHNITZER,
Merchant, both of Stendal, in the Empire of Germany, 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 :-
Our invention relates to a composition for journal and other bearings, the
composition being of such a nature that the bearings manufactured from it do not
require to be oiled, but simply to be kept damp with soapy water.
În carrying out our invention we take about
The above ingredients are mixed up with enough varnish and vaseline oil and a
[Price 4d.]

page_text: small quantity of black soap to make it into a thick plastic consistence. The varnish
and vaseline oil are used in equal proportions.
The composition is then pressed in a cold state into suitable moulds of the
desired form.
Bearings made of this composition possess the following advantages over other
bearings, videlicet :-
The cost of production is 60 to 70 per cent. below that of bearings made from
brass.
The bearings do not require to be oiled but simply to be kept damp with
soapy water.
Should the bearings become dry they would not get hot for a long time; a rail-
way vehicle, for instance, provided with bearings made of our composition would run
dry for 600 kilometers without becoming hot.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
(1.) The herein described composition for journal and other bearings consisting
of pulverized metallic iron, graphite and china-clay which are mixed up with
enough varnish and vaseline oil and a small quantity of black soap to form a thick,
plastic mass, the composition being then compressed in a cold state into the
desired shape.
(2.) The manufacture of journal and other bearings from the herein described
composition.
Dated the 31st day of March 1891.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.