Improvements in or applicable to Carriage Springs.
Year: 1891

page_text: Date of Application, 15th Sept., 1891
Complete - Specification Left, 2nd Apr., 1892-Accepted, 7th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Carriage Springs.
I, MARK SAMUEL LUCK, of 91, Lewisham Road, Lewisham, in the County of
Kent, Coach Builder, do hereby declare the nature of this invention to be as
follows:
This invention relates to improvements in or applicable to carriage springs,
whereby the springs are so coupled together that free elongation is provided for at
the same time that the vibration of the carriage is much less than when the ordinary
method of coupling carriage springs is employed.
In carrying out my invention I connect the springs of carriages by means of a
coupling consisting of two shackles connected to the springs by bolts in the ordinary
manner, but between the shackles I provide a block of india-rubber which is
advantageously of a shape adapted to fit between the shackles, in which may be
made holes to allow projections on the rubber block to pass through whereby the
block is kept in position.
By this arrangement it will be obvious that my block acts as a spring-joint giving
sufficient play to the springs to allow of their free elongation, at the same time
lessening vibration.
Dated the 15th day of Sentember 1901 **
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or applicable to Carriage Springs.
I, MARK SAMUEL LUCK, of 91, Lewisham Road, Lewisham, in the County of
Kent, Coach Builder, 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 relates to improvements in or applicable to carriage springs,
whereby the springs are so coupled together that free elongation is provided for at
the same time that the vibration of the carriage is much less than when the ordinary
method of coupling carriage springs is employed.
In carrying out my invention I connect the springs of carriages by means of a
coupling consisting of two shackles connected to the springs by bolts in the ordinary
manner, but between the shackles I provide a block of india-rubber which is
advantageously of a shape adapted to fit between the shackles, in which may be
made holes to allow projections on the rubber block to pass through whereby the
block is kept in position and the top of the shackle is prevented from coming into
contact with the bottom of the spring.
In order to enable my invention to be fully understood I will proceed to describe
the same by reference to the accompanying drawings, in which
Figure 1 is an isometrical perspective view shewing the side and rear springs of
a carriage coupled together according to my invention, and
Figures 2 and 3 are a side and a rear elevation respectively of the same.
Figure 4 is a view detached, of a suitable form of block of india-rubber which I
place between the springs.
a and b represent the two carriage springs connected together by a coupling
consisting of two shackles c, d and bolts e, f in the ordinary manner. g represents

page_text: the india-rubber block or sphere which I place between the shackles c and d.
h represent projections on my block 9 the said projections passing through holes
in the shackles as shewn whereby the block g is kept in position.
By this arrangement it will be obvious that my block g in connection with the
shackles acts as a spring joint giving sufficient play to the carriage springs a and b 5
to allow of their free elongation at the same time lessering vibration.
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 :-
(1.) The combination with the shackles forming the coupling for carriage 1
springs of an india-rubber block substantially as, and for the purpose, described.
(2.) The improvements in or applicable to carriage springs hereinbefore described.
and illustrated in the accompanying drawings.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.