US485652A - Car-spring - Google Patents

Car-spring Download PDF

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Publication number
US485652A
US485652A US485652DA US485652A US 485652 A US485652 A US 485652A US 485652D A US485652D A US 485652DA US 485652 A US485652 A US 485652A
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spring
rod
diameter
car
throughout
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04Wound springs
    • F16F1/06Wound springs with turns lying in cylindrical surfaces
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49609Spring making
    • Y10T29/49611Spring making for vehicle or clutch

Definitions

  • My invention relates to a supporting-spring for railway-cars and similar vehicles, it being designed especially as an improvement on the spring shown and described in my United States Letters Patent No. 462,958, dated November 10, 1891, granted to me for an improvement in car-springs, the object being particularly to render the spring correspondingly sensitive as the load on the vehicle varies.
  • A represents the spring considered as a Whole.
  • the spring I employ a rod circular in cross-section and of equal diameter from one end 01 to a predetermined point f, preferably at or adjacent the longitudinal center of the rod. From said point f the rod tapers gradually and continuously throughout, its diameter decreasing to the opposite end g, at which point it is of the smallest diameter. That portion h of the rod from the end at to the middle point f of the .same diameter throughout forms the base B when wound, and the taper portion '5 forms the top 0. The rod is wound on a mandrel of equal diameter throughout. This forms a Serial No. 434,044. (No model.)
  • the top 0 is much stiffer than in the form described in the Letters Patent above referred to, and when the load is applied to it the coils compress successively, beginning at the top, its expansive properties being much the same in efiect as a conical spring, but the graduated stiffness being attained by tapering the bar, as described.
  • the top 0 serves to cushion, while the base B resists compression; but before the top has been strained nearits limit said base willbegin to compress, cushioning any increase of load,the top coils assuming the closed position shown in Fig. 2.
  • the base moreover, being of equal diameter and the upper portion being tapered, as described, the oscillation of the vehicle-body is greatly reduced.
  • the portions of the rod composing the base and top may be varied in length in relation to each other in any manner desired.
  • a spring comprising a spirally-Wound rod, that portion of the rod forming the lower portion of the spring being of one size throughout and wound with its interior and exterior diameters, respectively, equal throughout, and that'portion of the rod forming the upper portion of the spring being tapered from its point of connection with the lower portion continuously throughout, the interior diameter of the spiral coils of both upper and lower portions being uniform throughout the entire spring and the exterior diameter of the lower portion being greater than that of the upper portion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Description

(N0 Mbdel.) L. PPINGST.
OAR SPRING-v No. 485,652. Patented Nov. 8, 1892.
UNITED STATES PATENT OFFICE.
LOUIS PFINGST, OF BOSTON, MASSACHUSETTS.
CAR-SPRING.
SPECIFICATION forming part of Letters Patent No. 485,652, dated November 8, 1892.
Application filed May 23, 1892 To all whom it may concern:
Be it known that I, LOUIS PFINGST, of Boston, in the county of Suffolk, State of Massachusetts, have invented certain new and useful Improvements in Oar-Springs, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being bad to the accompanying drawings, forming part of this specification, in which Figure l is an elevation of my improved carspring; Fig.2, a like view showing the spring partly compressed; Fig. 3,across'-section taken on line :0 a; in Fig. 1, and Fig. 4 aplan view of the rod from which the spring is Wound.
Like letters of reference indicate corresponding parts in the different figures of the drawings.
My invention relates to a supporting-spring for railway-cars and similar vehicles, it being designed especially as an improvement on the spring shown and described in my United States Letters Patent No. 462,958, dated November 10, 1891, granted to me for an improvement in car-springs, the object being particularly to render the spring correspondingly sensitive as the load on the vehicle varies.
In the drawings, A represents the spring considered as a Whole. In forming the spring I employ a rod circular in cross-section and of equal diameter from one end 01 to a predetermined point f, preferably at or adjacent the longitudinal center of the rod. From said point f the rod tapers gradually and continuously throughout, its diameter decreasing to the opposite end g, at which point it is of the smallest diameter. That portion h of the rod from the end at to the middle point f of the .same diameter throughout forms the base B when wound, and the taper portion '5 forms the top 0. The rod is wound on a mandrel of equal diameter throughout. This forms a Serial No. 434,044. (No model.)
coil of equal interior diameter, the exterior diameter of the top 0 of the coil gradually decreasing from the base portion to its end, as
best shown in Fig. 2. In this form of spring the top 0 is much stiffer than in the form described in the Letters Patent above referred to, and when the load is applied to it the coils compress successively, beginning at the top, its expansive properties being much the same in efiect as a conical spring, but the graduated stiffness being attained by tapering the bar, as described. Under a light load the top 0 serves to cushion, while the base B resists compression; but before the top has been strained nearits limit said base willbegin to compress, cushioning any increase of load,the top coils assuming the closed position shown in Fig. 2. The base, moreover, being of equal diameter and the upper portion being tapered, as described, the oscillation of the vehicle-body is greatly reduced.
It will be understood that the portions of the rod composing the base and top may be varied in length in relation to each other in any manner desired.
Having thus explained my invention, what I claim is- I A spring comprising a spirally-Wound rod, that portion of the rod forming the lower portion of the spring being of one size throughout and wound with its interior and exterior diameters, respectively, equal throughout, and that'portion of the rod forming the upper portion of the spring being tapered from its point of connection with the lower portion continuously throughout, the interior diameter of the spiral coils of both upper and lower portions being uniform throughout the entire spring and the exterior diameter of the lower portion being greater than that of the upper portion.
LOUIS PFINGST. Witnesses:
O. M. SHAW, K. DURFEE.
US485652D Car-spring Expired - Lifetime US485652A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584880A (en) * 1944-12-11 1952-02-05 Chrysler Corp Suspension for railway trucks
US2717559A (en) * 1944-12-11 1955-09-13 Chrysler Corp Railway truck spring suspension
US3331291A (en) * 1965-07-15 1967-07-18 Royal Industries Emergency brake actuator
US4377280A (en) * 1978-12-29 1983-03-22 Stahlwerke Bruninghaus Gesellschaft Mit Beschrankter Haftung Cylindrical helical compression spring
US4848757A (en) * 1988-01-25 1989-07-18 The Charles Stark Draper Laboratory, Inc. Remote center compliance device with fully or partially coil-bound springs
US5766160A (en) * 1995-06-06 1998-06-16 Target Therapeutics, Inc. Variable stiffness coils
US20040123769A1 (en) * 2002-10-30 2004-07-01 Kawasaki Jukogyo Kabushiki Kaisha Nonlinear characteristic spring and radius arm type truck using the same
US20050055778A1 (en) * 2003-09-12 2005-03-17 Kuchel Bernhard W. One-sided mattress
US20060042016A1 (en) * 2004-08-28 2006-03-02 Sealy, Inc. Asymmetric spring components and innersprings for one-sided mattresses
US20070089607A1 (en) * 2005-10-21 2007-04-26 General Electric Company Methods and apparatus for manufacturing and assembling a baghouse bag filter tensioning assembly
US20090106908A1 (en) * 2007-10-29 2009-04-30 Dreamwell, Ltd. Asymmetrical combined cylindrical and conical springs
US20110148018A1 (en) * 2007-10-29 2011-06-23 Dreamwell, Ltd. Asymmetrical combined cylindrical and conical springs
CN103352947A (en) * 2013-07-04 2013-10-16 昆山杰升精密五金有限公司 Special-shaped compression spring
US10598242B2 (en) 2016-05-20 2020-03-24 Sealy Technology, Llc Coil springs with non-linear loading responses and mattresses including the same
US11033114B2 (en) 2015-12-17 2021-06-15 Sealy Technology, Llc Coil-in-coil spring with variable loading response and mattresses including the same
US11051631B2 (en) 2016-01-21 2021-07-06 Sealy Technology, Llc Coil-in-coil springs with non-linear loading responses and mattresses including the same
US11076705B2 (en) 2014-05-30 2021-08-03 Sealy Technology, Llc Spring core with integrated cushioning layer
US11530768B2 (en) * 2019-02-04 2022-12-20 Nitto Kohki Co., Ltd. Pipe coupling having valve element and coil spring for use therein

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584880A (en) * 1944-12-11 1952-02-05 Chrysler Corp Suspension for railway trucks
US2717559A (en) * 1944-12-11 1955-09-13 Chrysler Corp Railway truck spring suspension
US3331291A (en) * 1965-07-15 1967-07-18 Royal Industries Emergency brake actuator
US4377280A (en) * 1978-12-29 1983-03-22 Stahlwerke Bruninghaus Gesellschaft Mit Beschrankter Haftung Cylindrical helical compression spring
US4848757A (en) * 1988-01-25 1989-07-18 The Charles Stark Draper Laboratory, Inc. Remote center compliance device with fully or partially coil-bound springs
US5766160A (en) * 1995-06-06 1998-06-16 Target Therapeutics, Inc. Variable stiffness coils
US6254592B1 (en) 1995-06-06 2001-07-03 Target Therapeutics, Inc. Variable stiffness coils
US20040123769A1 (en) * 2002-10-30 2004-07-01 Kawasaki Jukogyo Kabushiki Kaisha Nonlinear characteristic spring and radius arm type truck using the same
US7418753B2 (en) * 2003-09-12 2008-09-02 Dreamwell, Ltd One-sided mattress
US7814594B2 (en) 2003-09-12 2010-10-19 Dreamwell, Ltd. One-sided mattress
US20050278862A1 (en) * 2003-09-12 2005-12-22 Dreamwell, Ltd. One-sided mattress
US6931685B2 (en) * 2003-09-12 2005-08-23 Dreamwell, Ltd. One-sided mattress
US20050055778A1 (en) * 2003-09-12 2005-03-17 Kuchel Bernhard W. One-sided mattress
US20060042016A1 (en) * 2004-08-28 2006-03-02 Sealy, Inc. Asymmetric spring components and innersprings for one-sided mattresses
US7178187B2 (en) * 2004-08-28 2007-02-20 Sealy Technology Llc Asymmetric spring components and innersprings for one-sided mattresses
US20070089607A1 (en) * 2005-10-21 2007-04-26 General Electric Company Methods and apparatus for manufacturing and assembling a baghouse bag filter tensioning assembly
US7648563B2 (en) * 2005-10-21 2010-01-19 General Electric Company Methods and apparatus for manufacturing and assembling a baghouse bag filter tensioning assembly
US20090106908A1 (en) * 2007-10-29 2009-04-30 Dreamwell, Ltd. Asymmetrical combined cylindrical and conical springs
US20110148018A1 (en) * 2007-10-29 2011-06-23 Dreamwell, Ltd. Asymmetrical combined cylindrical and conical springs
US9161634B2 (en) 2007-10-29 2015-10-20 Dreamwell, Ltd. Asymmetrical combined cylindrical and conical springs
CN103352947A (en) * 2013-07-04 2013-10-16 昆山杰升精密五金有限公司 Special-shaped compression spring
US11076705B2 (en) 2014-05-30 2021-08-03 Sealy Technology, Llc Spring core with integrated cushioning layer
US12048380B2 (en) 2014-05-30 2024-07-30 Sealy Technology, Llc Spring core with integrated cushioning layer
US11033114B2 (en) 2015-12-17 2021-06-15 Sealy Technology, Llc Coil-in-coil spring with variable loading response and mattresses including the same
US11051631B2 (en) 2016-01-21 2021-07-06 Sealy Technology, Llc Coil-in-coil springs with non-linear loading responses and mattresses including the same
US10598242B2 (en) 2016-05-20 2020-03-24 Sealy Technology, Llc Coil springs with non-linear loading responses and mattresses including the same
US10935098B2 (en) 2016-05-20 2021-03-02 Sealy Technology, Llc Coil springs with non-linear loading responses and mattresses including the same
US11530768B2 (en) * 2019-02-04 2022-12-20 Nitto Kohki Co., Ltd. Pipe coupling having valve element and coil spring for use therein

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