Improvements in Brake Blocks.
Year: 1891

page_text: Date of Application, 6th Feb., 1891
Complete Specification Left, 6th Nov., 1891-Accepted, 12th Dec.. 1891
PROVISIONAL SPECIFICATION.
Improvements in Brake Blocks.
We, ROBERT BONTHRON BLACK, Secretary and WILLIAM JONES, Manager,
both of The Clyde Rubber Works Company, Limited, Clyde Street, Port Dundas,
Glasgow, Lanarkshire, do hereby declare the nature of this invention to be as
follows:-
This invention which relates to brake blocks for carriage wheels and like use
has for its object the production of a block having greater durability and possessing
higher holding or braking power than those hitherto in use.
The improved block which may be of the ordinary form is composed of rubber
or rubber compositions and wire cloth, the rubber and wire cloth being placed in
alternate layers by preference so as to present the edges of the layers as the
wearing surface. The wire cloth may be separately impregnated with rubber or
rubber compounds and united with layers of rubber, or plain wire cloth may be
placed between layers of rubber or rubber compounds and pressure applied to force
the rubber into the interstices in the wire cloth the material being subsequently
vulcanised.
Individual blocks may be made in the manner above described, or large sheets
may be so prepared and pieces to serve as blocks or as the wearing surfaces of
blocks cut from such sheets.
Dated this Fifth day of February 1891
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Brake Blocks.
We, ROBERT BONTHRON BLACK, Secretary, and WILLIAM JONES, Manager,
both of The Clyde Rubber Works Company, Limited, Clyde Street, Port Dundas,
Glasgow, Lanarkshire, 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 which relates to brake blocks for carriage wheels and like use,
has for its object the production of a block having greater durability and possessing
higher holding or braking power, than those hitherto in use.
The improved block which as represented in cross section and sectional elevation
at Figures 1 and 2 of the accompanying drawings may be of the ordinary form is
composed of rubber or rubber compositions, and wire cloth, the rubber and wire
cloth being placed in alternate layers, by preference, as indicated at Figure 1, so as
to present the edges of the layers as the wearing surface.
The wire cloth may be separately impregnated with rubber or rubber compounds
and united with layers of rubber, or plain wire cloth may be placed between layers
of rubber or rubber compounds and pressure applied to force the rubber into the
interstices in the wire cloth, the material being subsequently vulcanised.
Individual blocks may be made in the manner above described, or large sheets
may be so prepared and pieces to serve as blocks or as the wearing surfaces of
blocks cut from such sheets.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what
we claim is —
A brake block, made from rubber or rubber compounds and wire cloth sub-
stantially as described.
Dated this Fifth day of November 1891.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Strect, Glasgow, Agents.