GB576388A - Improvements in leaf springs - Google Patents

Improvements in leaf springs

Info

Publication number
GB576388A
GB576388A GB809644A GB809644A GB576388A GB 576388 A GB576388 A GB 576388A GB 809644 A GB809644 A GB 809644A GB 809644 A GB809644 A GB 809644A GB 576388 A GB576388 A GB 576388A
Authority
GB
United Kingdom
Prior art keywords
leaf
chamfered
edges
springs
woodhead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB809644A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toledo Woodhead Springs Ltd
Original Assignee
Toledo Woodhead Springs Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toledo Woodhead Springs Ltd filed Critical Toledo Woodhead Springs Ltd
Priority to GB809644A priority Critical patent/GB576388A/en
Publication of GB576388A publication Critical patent/GB576388A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs 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
    • F16F1/18—Leaf springs
    • F16F1/185—Leaf springs characterised by shape or design of individual leaves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

576,388. Making leaf springs. TOLEDO WOODHEAD SPRINGS, Ltd., and WOODHEAD, F. April 29, 1944, No. 8096. [Classes 83 (ii) and 83 (iv)] Altering structure by mechanical treatment.- In a method of treating leaves for leaf springs to increase their fatigue resistance and effective life, the edges of a leaf are chamfered as at d or g so as to produce obtuse angles between the tension surface a and the edges c, and the tension surface and chamfered portions are subsequently work-hardened by shot-blasting &c. The chamfering, which may be performed by grinding, milling, filing, planing, &c., is preferably effected after the leaf has been hardened and tempered and may extend throughout the length of the leaf or only on the more highly stressed portions. The chamfered surfaces extend at least to the neutral axis of the leaf and may assume other shapes than those shown, and the compression surface may be grooved longitudinally. The edges adjacent the compression surface b may also be chamfered. Specification 542,043 is referred to, and the Provisional Specification refers also to Specifications 467,407 and 532,698, [both in Group XXXII].
GB809644A 1944-04-29 1944-04-29 Improvements in leaf springs Expired GB576388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB809644A GB576388A (en) 1944-04-29 1944-04-29 Improvements in leaf springs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB809644A GB576388A (en) 1944-04-29 1944-04-29 Improvements in leaf springs

Publications (1)

Publication Number Publication Date
GB576388A true GB576388A (en) 1946-04-02

Family

ID=9845687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB809644A Expired GB576388A (en) 1944-04-29 1944-04-29 Improvements in leaf springs

Country Status (1)

Country Link
GB (1) GB576388A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496808A1 (en) * 1980-12-22 1982-06-25 Nhk Spring Co Ltd BLADE SPRING
AT513234A1 (en) * 2012-07-30 2014-02-15 Frauenthal Automotive Sales Gmbh Profile bar and hergestellelle vehicle spring
AT520621A1 (en) * 2017-10-16 2019-05-15 Hendrickson Comm Vehicle Sys Europe Gmbh Spring leaf and method of making a spring leaf

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496808A1 (en) * 1980-12-22 1982-06-25 Nhk Spring Co Ltd BLADE SPRING
US4546958A (en) * 1980-12-22 1985-10-15 Nhk Spring Co., Ltd. Leaf spring
AT513234A1 (en) * 2012-07-30 2014-02-15 Frauenthal Automotive Sales Gmbh Profile bar and hergestellelle vehicle spring
US9726245B2 (en) 2012-07-30 2017-08-08 Hendrickson Commercial Vehicle Systems Europe Gmbh Profiled bar, and vehicle spring produced therefrom
AT513234B1 (en) * 2012-07-30 2019-04-15 Hendrickson Comm Vehicle Sys Europe Gmbh Profile bar and hergestellelle vehicle spring
EP3719341A1 (en) * 2012-07-30 2020-10-07 Frauenthal Automotive Sales GmbH Sectional bar and vehicle spring made therefrom
US10890228B2 (en) 2012-07-30 2021-01-12 Hendrickson Commercial Vehicle Systems Europe Gmbh Profiled bar, and vehicle spring produced therefrom
AT520621A1 (en) * 2017-10-16 2019-05-15 Hendrickson Comm Vehicle Sys Europe Gmbh Spring leaf and method of making a spring leaf
US11536342B2 (en) 2017-10-16 2022-12-27 Hendrickson Commercial Vehicle Systems Europe Gmbh Spring leaf and method for producing a spring leaf
AT520621B1 (en) * 2017-10-16 2023-04-15 Hendrickson Comm Vehicle Sys Europe Gmbh Spring leaf and method of manufacturing a spring leaf

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