Improvements in C, Elliptical, and other Leaf Springs for Carriages and Road Vehicles.
Year: 1890

page_text: Date of Application, 21st Mar., 1890
Complete Specification Left. 20th Dec., 1890-Accepted, 28th Feb., 189:
PROVISIONAL SPECIFICATION.
Improvements in C, Elliptical, and other Leaf Springs for Carriages
and Road Vehicles.
I, JAMES HARRISON, of 33, Clarement Road, Alexandra Park, Manchester, in
the County of Lancaster, Coach Builder, do hereby declare the nature of this
invention to be as follows:-
My invention is particularly applicable to C and elliptical carriage springs
the object of my improvements being to improve the action of the springs and
to dispense with bolts for connecting the ends and other portions of the springs
together.
My improved C spring is made as follows:--
The back or high end of the lower portion of the spring is connected by a link to
a spring which extends toward and beyond the centre; to this last spring is pivoted
or attached a top spring which passes back to the front end of the main spring and
rests also upon a rubber or other block on the free end of the spring the pump
handle of the carriage body being connected to the top spring.
I propose
to connect the ends of the main .e. upper and lower springs together by
welding a piece of metal to the inner leaf of each spring this piece being wider
than the spring and shaped to form a circular or hollow box into which is fitted a
block of rubber; in order to secure the springs and the rubber all in position I
prefer to employ a metal cap on each side of the box these caps may be held by a
small bolt which passes through the rubber and the caps or the caps may be
screwed or otherwise secured to the end of each box.
In my improved elliptical springs I prefer to connect the ends together as
described the other improvements relate to the construction and arrangement of
the springs, in one case I form the top spring in two parts the ends of which do not
quite meet in the centre to each top piece is pivoted one end of an additional leaf
spring the centre portion of which rests upon the ends of the top springs and
carries the handle of the carriage body.
In another construction I employ a simple elliptical spring the same for
top and bottom and I use an additional leaf spring mounted as described above
or an additional spring is employed both above and below the elliptical spring.
In all cases where one portion of a spring rests upon another spring I propose to
interpose a rubber block and prefer to make the different joints and connections
of the springs in the manner previously described.
Dated this 20th day of March 1890
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in C, Elliptical, and other Leaf Springs for Carriages
and Road Vehicles.
I, JAMES HARRISON, of 33, Clarendon Road, Alexandra Park, Manchester, in
the County of Lancaster, 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 :-
My invention is particularly applicable to C and elliptical carriage springs the
object of my improvements being to improve the action of the springs and to
dispense with the ordinary bolts for connecting the ends and other portions of the
springs together.

page_text: And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.
Figure 1 is a view of my improved C spring.
Figure 1 is a detail view of part of the same.
Figure 2 is a view of my improved elliptical spring and
Figure 3 is a view of the two springs combined.
Referring first to Figure 1.-The back or high end of the lower portion a of
the C spring is connected by a link or leather brace to a counter-spring e which
extends toward and beyond the centre; to this counter-spring is pivoted or
attached a top springe which passes back to the front end of the main spring a.
The pump handle g of the carriage body is connected to the top spring e and I
propose to connect the ends of the upper and lower springs a and e together by
welding a piece of metal to the inner leaf of each spring as illustrated in the
detail view Fig. 1; each piece al and respectively is wider than its spring a and e
and is shaped to form a circular or hollow box into which is fitted a block of
rubber ; in order to secure the springs a e and the rubber all in position |
prefer to employ metal caps i i one on each end of the box; these caps i may be
held by a small bolt which passes through the rubber and the caps i or the caps
may be screwed or otherwise secured to the end of each box.
In elliptical springs one of which is illustrated by Fig. 21 connect the ends of
the upper and lower springs and m together as described with reference to
Fig. 1.
In combination with the elliptical spring Fig. 2 I may use an additional leaf
spring mounted above or two additional leaf springs one above and the other below
the elliptical spring.
In Fig. 3 I have shown my improved C and elliptical springs combined. In this
case the spring a is secured at o to the lower portion m of the elliptical spring and
also to the axle and the spring is secured at p to the upper portion of the
elliptical spring as well as to the pump handle g.
In all cases I prefer to employ the special mode of connecting the ends of the
springs together by means of a hollow box containing an elastic cushion as
described; but in the combination springs illustrated by Figs. 1 and 3 any known
mode of connecting the ends of said springs might be employed instead of the
aforesaid special mode.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. The method of connecting one portion of a spring to another portion by means
of a hollow box formed in two parts secured together and provided with a block of
rubber substantially as herein described with reference to Fig. 1.
2. The combination with a C spring, of an elliptical spring substantially as
.described with reference to Fig. 3.
3. The several constructions and combined arrangements of parts forming my
improved springs substantially as herein described and as shown.
Dated this 18th day of December 1890.
4
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.