Improvements in India-rubber Buffer, Draw, and Bearing Springs.
Year: 1895

page_text: Date of Application, 8th July, 1895
Complete Specification Left, 8th Apr., 1896-Accepted, 9th May, 1896
PROVISIONAL SPECIFICATION.
Improvements in India-rubber Buffer, Draw, and Bearing Springs.
I, ALEXANDER SPENCER, of 77 Cannon Street, in the City of London,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to improvements in springs such as referred to in
prior Specifications No. 11921 of 1889 and No. 19011 of 1894 constructed with
india-rubber and metallic plates or rings and provided with supplementary elastic
parts arranged in relation to the said plates or rings in such a manner as to relieve
shocks in the event of full compression occurring suddenly so that by means of the
supplementary springs the contact of cup or dividing plates, or of cup rings with
one another, or with end or dividing plates. or of nozzles with plates is eased.
I construct a spring with a compound ring consisting of two cup rings made
without nozzles and arranged back to back and one or more intermediate rings or
annular plates located between the said two cup rings and with india-rubber rings
moulded in between each two of the said metal parts the compound ring thus
formed being made separate from and being forced into place upon an india
rubber body formed with a groove adapted to receive and retain the said compound
ring in its proper place on the said body and the construction being such as to
afford increased stroke between the cup plates without liability of the interposed
rubber to squeeze out to an excessive extent under pressure.
In springs such as above referred to or others of analogous character, there may
be a groove or a projecting bead moulded in the hole that extends through the
india rubber body, and a nozzle formed either with a projecting bead taking into
the said groove or with a groove to receive the projecting bead of the india-rubber
body, the nozzle being, in either case, forced into its proper place in the said hole;
the nozzle employed may be a compound nozzle formed of two metal nozzle rings
with interposed india-rubber and metal rings adapted to form a compound supple-
mentary spring constructed after the manner already described with reference to
the supplementary spring interposed between the cup rings.
Dated this 8th day of July 1895.
Improvements in India-rubber Buffer, Draw, and Bearing Springs.
1, ALEXANDER SPENCER, of 77 Cannon Street, in the City of London,
Engineer, 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 has reference to improvements in springs such as referred to in
prior Specifications No. 11921, of 1889 and No. 19011 of 1894 constructed with
india-rubber and metallic plates or rings and provided with supplementary.elastic
parts arranged in relation to the said plates or rings in such a manner as to relieve

page_text: shocks in the event of full compression occurring suddenly so that by means of, the
supplementary springs the contact of cup or dividing plates, or of cup rings with
one another, or with end or dividing plates, or of nozzles with plates is eased.
I construct a spring with a compound ring as I shall now proceed to explain
with reference to the accompanying drawings wherein
Fig. is a central longitudinal section and Fig. 2 a half end view of a spring
constructed with a compound ring according to this invention.
The compound ring consists of two metal cup rings A B made without nozzles
and arranged back to back, and one or more intermediate metal rings or annular
plates C, two are shown, located between the said two cup rings and with india
rubber-rings D moulded in between each two of the said metal parts, the compound
ring thus formed being made separate from and vulcanized before being forced
into place upon a previously vulcanized india rubber body E formed with a
groove E adapted to receive and retain the said compound ring in its proper place
on the said body, the construction, as will be readily seen, being such as to afford
increased stroke between the cup rings A B without liability of the interposed
india rubber rings D to squeeze out to an excessive extent under pressure.
In springs such as above referred to, or others of analogous character, there
may be a groove or a projecting bead moulded in the hole that extends through
the india rubber body, and a nozzle formed either with a projecting bead taking
into the said groove or with a groove to receive the projecting bead of the india-
rubber body, the nozzle being, in either case, forced into its proper place in the
said hole..
Figs. 3 and 4 are similar views to Figs. 1 and 2 respectively showing a spring
constructed with a compound ring of the kind shown in the latter figures and
with a compound nozzle formed of two metal uozzle rings F, G with interposed
india-rubber rings H and metal rings I adapted to form a compound supplementary
spring constructed after the manner already described with reference to the
supplementary spring interposed between the cup rings A and B, such compound
nozzle being formed with a projecting bead J taking into a groove K formed in
the inner periphery of the hole K* in the india rubber body E.
Fig. 5 shows a spring constructed with a compound ring like that shown in
Figs. 1 and 2, but having an internal projecting bead K' taking into a groove
formed to receive it in the periphery of a metal nozzle L of known form.
Figs. 6 and 7 show a somewhat similar construction but the nozzle L is formed
with a projecting bead L' taking into the groove K in the india rubber body E.
Figs. 8 and 9 show a spring having a simple metal ring A¹ forced into place in
the groove E in the outer periphery of the india rubber body, as heretofore, but
such spring having a compound nozzle constructed and arranged like that shown
in Figs. 3 and 4.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is :-
:―
1. An india rubber buffer, draw or bearing spring constructed with a compound
ring consisting of two metal cup rings made without nozzles and arranged back
to back, one or more intermediate metal rings or annular plates located between
the two cup rings, and india rubber rings moulded in between each two of the said
metal parts, the compound ring thus formed being made and vulcanized separate
from and being forced into place upon a previously vulcanized india rubber body
.formed with a groove adapted to receive and retain the said compound ring in its
proper place on the said body, substantially as described.
2. A spring constructed with a compound ring as specified in the preceding
claim and with a nozzle formed either with a projecting bead or with a groove
engaging respectively either with a groove or with a projecting bead moulded in
the hole that extends through the spring and whereby the said nozzle is held in
place, substantially as described.
:

page_text: 3. A spring of the kind referred to in Claim 1, or of an analogous character,.
constructed with a compound nozzle formed by two metal nozzle plates with
interposed metal rings and india rubber rings moulded in between said metal
parts, said compound nozzle being formed either with a projecting bead or with a.
groove engaging respectively either with a groove or with a projecting bead
moulded in the hole that extends through the india rubber spring body and
whereby said nozzle is held in place, substantially as described.
4. The several improved constructions of springs hereinabove described with
reference to, and illustrated respectively in Figs. 1 and 2; in Figs. 3 and 4;.
in Fig. 5; in Figs. 6 and 7; and in Figs. 8 and 9 of the drawings annexed.
VILIO
For the Applicant,
W. LLOYD WISE,
46 Lincoln's Inn Fields, Loudon, W.C., Chartered Patent Agent..