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US82300A - Improved oak-spring - Google Patents

Improved oak-spring Download PDF

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Publication number
US82300A
US82300A US82300DA US82300A US 82300 A US82300 A US 82300A US 82300D A US82300D A US 82300DA US 82300 A US82300 A US 82300A
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United States
Prior art keywords
spring
tube
oak
improved
air
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Expired - Lifetime
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/48Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
    • B60G11/52Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also rubber springs

Definitions

  • A indicates the coils of a metal spring.
  • the spring of the form and size represented by the drawings, is specially designed for cars, a number of them being put together in a cluster or nest, and held together and in position by a suitably-constructed box. But the combination of; the spiral spring, the elastic tube, and the confined air in the closed air-Chamber, is applicable to other purposes. v

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Springs (AREA)

Description

J. W. BVANS.
CAR SPRING- No. 82,800. Patented Sept. 22, 1868.
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JAMES W. EVANS, on NEW YORK, N. Y.
Letters Patent No. 82,300,-dated September 22, 1868.'
IMPROVED GAR-SPRI NG.
dla rgtule' mam tt iu tym eitm t'atmt aut ranking ;mi nt the same.
Be it known that I, JAMES W. EVANS, of the city of New York, county and 'State 'of'New York, have inv'ented a new and useful Improvement in Car-Springs; and I deolare the following to be a full, clear, and exact description of the construction and operation of the same, reference being ,had to the accompanying drawin'gs, and the letters of 1 referencemarked thereon, which form a part of this specification, and of which- Figure 1 is a side surface view of a spiral spring, containing within it a hollow column of elastic rubber, the said column intended to be closed at each end.
Figure 2 is a central sectional view of the same.
The same letters refer to similar parts.
A indicates the coils of a metal spring. o
B is a column or tube of rubber, properly vulcanized to give it the requisite resistance and elasticity, corresponding inllength with the spring A, and fitting snugly within it. 4
C G' are plugs, of Wood or any other suitable material, one being forced into each end of the tube B, formngair-tght stoppers, andithusrenclosing in the tube a column of air, D.
It is cvident that When a spring, combosed of the parts specified, combined as represented, is compressed, there is brought into astion'the combined resistance of the metailic coil A, the rubber tube B, and the enclosed column of air, D. It is evident', also, that in proportion as the spring is compressed, and the enclosed air is condensed, the pressure of the air against the inner surface of the tube increases, tending to hold the walls of the tube straight, and to present their collapsing or bending inward, thus augmenting the resistance and elasticity of the rubber tube itself. Another effect of the outward pressure of the air against the walls of the tube, When the said walls are made suficiently thin, is to force the rubber out between the coils in proportion as the spring is compressed, the confined4 air thus constituting a convenient and efiicient means of interposing an elastic cushion between the coils of the spring at the moment-when such a cushion is needed to prevent the coils from coming in contact with each other. I
I do not, of course, confine myself to the use of wooden plugs to close the ends of the tube. Any other appropriate device may 'ce employed, at the option of the manufacturer. i
The spring, of the form and size represented by the drawings, is specially designed for cars, a number of them being put together in a cluster or nest, and held together and in position by a suitably-constructed box. But the combination of; the spiral spring, the elastic tube, and the confined air in the closed air-Chamber, is applicable to other purposes. v
What I claim as new, and desire to secure by Letters Patent, is-
The spiral spring A, the ,elastic tube B, and the closed air-chamber confiniiig the column of aii` D, constructed and combined, suhsta'ntially as and for the purposes specified.
' JAMES W. EVANS.
Witnesses:
J. P. FI'rcH,
C. DINsMona.
US82300D Improved oak-spring Expired - Lifetime US82300A (en)

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US82300A true US82300A (en) 1868-09-22

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US82300D Expired - Lifetime US82300A (en) Improved oak-spring

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598017A (en) * 1945-07-18 1952-05-27 Us Navy Gun recoil absorbing mechanism
US20040194703A1 (en) * 2003-04-05 2004-10-07 Rohm And Haas Electronic Materials, L.L.C. Organometallic compounds
US20050191826A1 (en) * 2004-02-27 2005-09-01 Matthia Bauer Germanium deposition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598017A (en) * 1945-07-18 1952-05-27 Us Navy Gun recoil absorbing mechanism
US20040194703A1 (en) * 2003-04-05 2004-10-07 Rohm And Haas Electronic Materials, L.L.C. Organometallic compounds
US20050191826A1 (en) * 2004-02-27 2005-09-01 Matthia Bauer Germanium deposition

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