Improvement in Railway and Tramway Brakes.
Year: 1891

page_text: Date of Application, 24th Oct., 1891
Complete Specification Left, 17th Nov., 1891-Accepted, 19th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvement in Railway and Tramway Brakes.
I SAMPSON WILLIAM PECHEY, Merchant, of Natal South Africa (care of
Wm. Pechey Esqr. J.P. Thetford Norfolk) do hereby declare the nature of this
invention to be as follows:-
An improvement in the adaptation of brakes to railway and tramway vehicles
and all such which run on rails, including locomotives or draught motors of all
descriptions.
The brake blocks to be applied to the rails, instead of to the periphery or sides
of the wheels as heretofore.
The brake blocks to be made of any material, with either smooth or flanged face
and shaped as may be considered most desirable.
The pressure brought to bear on the blocks being in proportion to the weight of
the vehicles.
The advantages of this method are explained hereunder.
By applying the blocks to the wheels under the old system there is-
-
First. Straining of wheels and axles and friction between tires and blocks.
Second. Straining of wheels, and friction between tires and rails.
By the adaptation now sought to be introduced there is--
Friction only between blocks and rails and without more wear and tear to rails
than is produced by the tires when wheels are blocked.
There is thus an entire absence of friction and straining to and of, wheels tires
and axles, the lives of which are thereby indefinitely prolonged, without in any
way lessening the brake power to the vehicles..
This application is intended to refer in no way, nor to interfere with the
mechanical appliances, or other methods of providing the force or power to blocks
necessary to produce the restraining friction.
Dated this 23rd day of October 1891.
COMPLETE. SPECIFICATION. .
Improvement in Railway and Tramway Brakes
SAMPSON WILLIAM PECHEY, Merchant, of Natal South Africa (c/o
Wm. Pechey Esq. J.P. Thetford Norfolk) 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 :—
An improvement in the adaptation of brakes to railway and tramway vehicles,
and all such which run on rails including locomotives or motors of all descriptions.
The brake blocks to be applied to the rails instead of to the periphery or sides
of the wheels.
The blocks to be made of any material with either smooth or flanged face and
shaped as may be considered most desirable.
The pressure brought to bear on the blocks being in proportion to the weight of
the vehicles or vehicle and load combined and equally or otherwise distributed
amongst the number of blocks attached.
The following will illustrate the method now in vogue as compared with that
now sought to be introduced.

page_text: In all cases the width of face of shoe is not less than width of tires, the length
of the face of block to be in proportion to the friction required and pressure
brought to bear thereon.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
Protection for the principle of the application of the brake (shoes or) blocks to
the rails.