An Improved Spring-block for Carriages.
Year: 1891

page_text: Date of Application, 4th Feb., 1891
Complete Specification Left, 4th Nov., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
An Improved Spring-block for Carriages.
I FRANK PARKER of 66 Churchill Street Stockport Road Manchester in the
County of Lancaster Cab Proprietor do hereby declare the nature of this invention
to be as follows:
The object of this invention is to construct.a durable and elastic spring-block
for insertion between the axle and springs of a carriage which shall absorb a great
portion of the shock in passing over paved or rough roads and thus improve the
effect of the springs and render the latter and also the carriage itself more easy
and durable.
For this purpose I form a-block of india rubber, of a less thickness than the
block required, with a flat base and with its upper side curved to the form of the
spring.
Above and below this I place a plate of either vulcanite, hard rubber steel or
other suitable metal and having placed the whole together in a metal mould I
vulcanize the same together into a solid mass in the ordinary well known manner.
These blocks are fixed between the flat part of the axle and the spring and are
kept in place by means of metal clips and bolts as usual and this combination of the
vulcanite hard rubber or metal plates will keep the india rubber block firmly in its
place and prevent it from becoming worn or displaced.
Dated this 3rd day of February 1891.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Spring-block for Carriages.
I FRANK PARKER of 66 Churchill Street Stockport Road Manchester in the
County of Lancaster Cab Proprietor, 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 :-
The object of this invention is to construct a durable and elastic spring-block for
insertion between the axle and springs of a carriage which shall absorb a great
portion of the shock in passing over paved or rough roads and thus improve the
effect of the springs and render the latter and also the carriage itself more easy
and durable.
The nature of my said invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference
to the annexed sheet of drawings and the following explanation thereof.
Fig. 1 is a side view of a carriage spring with my invention shown as applied
thereto.
For the purposes of my invention I form a block a of india rubber of a less
thickness than the block required with a flat base and its upper side curved to the
form of the spring b see detached side view Fig. 2.
C
Above and below this I place a plate of either vulcanite hard rubber steel
or other suitable material c and d and (having placed the whole together in a metal
mould) vulcanize the same together into a solid mass in the ordinary well known
Or the plates and the block may be attached together in any other
manner.
convenient manner.
These blocks are fixed between the flat part e of the axle and the spring bas

page_text: shown at Fig. 1 and are kept in place by means of metal clips and bolts f as usual,
and this combination of the vulcanite bard rubber or other plates will keep the
india rubber block firmly in its place and prevent it from becoming worn or
displaced.
It will be evident that only the upper plates need be concaved or curved and the
india rubber block made of the same thickness throughout as shewn at Fig. 3 and
the plate may be flanged as shewn in section at Fig. 4.
Having now particularly described and ascertained the nature of my said inven-
tion and the manner in which the same is to be performed I declare that what I
claim is
The improved spring. block for carriages concaved or curved at the top con-
sisting of a block of india rubber in combination with an upper and lower plate of
vulcanite, hard rubber, or other suitable material all vulcanized or otherwise
attached together in one piece substantially as herein before described.
Dated this 3rd day of November 1891
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.