Improvements in Carriage Springs.
Year: 1888

page_text: Date of Application, 1st Oct., 1888
Complete Specification Left, ist July, 1889-Accepted, Ord Aug, 1990
Complete specification Lell, 1st July, του Μουτμισα,
PROVISIONAL SPECIFICATION.
Improvements in Carriage Springs.
"
I THOMAS RICHARD COWARD of 44 Bellefields Road Brixton Surrey, Coachsmith
and Spring Maker do hereby declare the nature of this invention to be as follows:-
Many well known compound springs, employed on carriages without a perch (viz.)
the "bow end & half elliptic; the "bow end elliptic and elbow; attatched;" the
"whole elliptic with bow end; "and others, do not possess the desired qualities of
uniform elasticity, and durability to form efficient carriage springs by reason of thier
faulty construction in the arrangement and distribution of thier plates, or leaves.
Now by my invention I am able to use a true Cee spring, the plates, or leaves of
which are so arranged that the greater the force or wieght, brought to bear upon
them the closer the plates are forced together thus giving support to the preceeding
plates. This novo! construction and arrangement is founded upon the principle of
true suspension, which has hitherto existed only, in the well known Cee spring used
with a perch.
In carrying out my invention I take what is technically known as an ordinary
dumb, & under spring. The under spring, I affix to the top of the axle at a point, which
by preference is situated nearer one end of the under spring than the other. I then
take a true Cee spring, the hoop, on the top of which, having a pipe in the solid, or
loose, is (by the addition of 2 side cheeks or couplings) attatched to, and suspended
from the shorter end of the under spring. The tail or bottom, end of the Cee spring
passing clear under the axle, and terminating with an india rubber eye; is suspended
from a loop headed iron stay, the flap of which is attatched to the bottom of the under-
spring; one end of the "dumb" having what is known as a loop head, is fixed by
a bolt, passing through it, and the end of the longer portion of the under spring.
The other end of the dumb is provided with a pipe eye and is attatched by two
couplings, to a leathern brace which passes, round the Cee spring in the usual way,
and terminates at the jack spindle, which is a small windlass, used to adjust the
brace to any length, I thus obtain suspension without the encumbrance of a perch.
My invention also offers great facilities for the utilization of the ordinary, Cee
spring, dumb, and under spring, for conversion into my improved compound spring.
.
Dated this 1st day of October 1888
подар
COMPLETE SPECIFICATION. ·
Improvements in Carriage Springs.
I THOMAS RICHARD COWARD of 44 Bellefields Road, Brixton Surrey, Coach-
smith & Spring Maker 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:-
Many well known compound springs, employed on carriages (viz.) the "Bow end and
half elliptic,"
," "the Bow and elliptic, and elbow" attatched, the whole elliptic with
bow end," and others do not possess, the desired qualities of uniforin elasticity and
durability to form efficient carriage springs, by reason of thier faulty construction, in
the arrangement, and distribution of thier plates, or leaves.
Now by my Invention, I am able to use, a true Cee spring, the plates, or leaves of
which are so arranged, that the greater the force, or wieght upon them, the closer the
plates are forced together, thus giving due support to the preceeding plates.―This
novel construction and arrangement, is founded upon the principle of true suspension,
which has hitherto existed only, in the well known "Cee spring" when used with
narch

page_text: In the accompanying drawing I, have shewn in side elevation a carriage spring,
constructed according to my Invention, suitable for either, two or four wheel
carriages.
Referring now to this illustration of my invention, I take, what is technically known
as an ordinary dumb spring A-and an under spring B.-which I affix to the top of
the axle C. at a point which by preference, is situated nearer one end of the under
spring B-than the other.
I then take a true Cee spring D-the hoop D₁or other fixing being constructed,
with a pipe eye in the solid, is by the addition of two side cheeks or couplings E,
attatched to & suspended from the shorter end of the under spring B-the tail or
bottom end of the Cee spring D passing, clear, under the axle C-terminating with
an india rubber lined eye B₁-is suspended from a loop head iron stay, the flap of
which is attatched to the bottom of the under spring B at C-one end of the dumb
spring A having what is known as a loop head is fixed by a bolt passing through it
and the longer portion of the under spring B-the other end of the dumb spring A is
provided with a pipe eye, or loop head and is attatched by two, couplings or other
fastenings to a leather brace G, which passes round the Cee spring in the usual way,
and terminates, in the "jack H and is there fixed either by an adjustable jack
spindle, or by a bolt passing through the Cee spring, or other convenient fastening.
It will now be understood in the manner described, that by detatching the Cee spring
from the axle, I am enabled to use a Cee spring-without a perch-constructed in tho
same manner in respect to the arrangement and distribution of the plates or leaves as
those Cee springs, that are used with a perch.
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For the more perfectly obtaining greater elasticity in this compound arrangement
of carriage springs, I sometimes substitute in place of the dumb spring A-a "live"
or laminated form of spring, similar to the under spring B.
My Invention offers great facilities for the utilization of the ordinary Cee spring,
dumb spring, and under spring, or the ordinary elliptic spring, for conversion into my
compound spring.
Having now particularly described, and ascertained the nature of my Inven-
tion in what manner the same is to be performed I declare that what I
claim is-
The construction of compound carriage springs, as and for the purpose above
described, whereby I am enabled to detatch the Cee spring from direct connection with
the axle of the vehicle, to allow it to act in the same manner, without a perch, as the
Cee springs which are used with a perch.
Dated this 28th of June 1889
THOMAS RICHARD COWARD.