GB293153A - Improvements in or relating to crane weighing apparatus - Google Patents

Improvements in or relating to crane weighing apparatus

Info

Publication number
GB293153A
GB293153A GB1203827A GB1203827A GB293153A GB 293153 A GB293153 A GB 293153A GB 1203827 A GB1203827 A GB 1203827A GB 1203827 A GB1203827 A GB 1203827A GB 293153 A GB293153 A GB 293153A
Authority
GB
United Kingdom
Prior art keywords
spring
lever
shackle
knife edge
tension
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
GB1203827A
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.)
Avery Weigh Tronix Ltd
Original Assignee
W&T Avery 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 W&T Avery Ltd filed Critical W&T Avery Ltd
Priority to GB1203827A priority Critical patent/GB293153A/en
Publication of GB293153A publication Critical patent/GB293153A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/02—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a helical spring
    • G01G3/04—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a helical spring using a plurality of springs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

293,153. Avery, Ltd., W. & T., and Sykes, C. M. May 5, 1927. Compound-lever apparatus; vibrations, neutralizing; spring balances.-In a crane weighing-apparatus to minimize the shock to the indicating mechanism on the application of a load a spring is interposed in the compound lever mechanism and is adapted to remain rigid when .transmitting normal loads but to expand on the application of an excessive load. The weighing resistant is constituted by a spring and an auxiliary spring acting in opposition thereto, and means are provided for adjusting the .tension of the springs. In the form shown Figs. 1 and 2, the ring 3 to which the load is applied is swivelly mounted in a shackle 6 suspended from a knife edge 8a on a lever 8 one end of which is fulcrummed on a knife edge 8b in bearings carried by links 10 suspended from a knife edge 10a carried by the cross bars 11 of the casing 7. The other end of the lever 8 is connected through knife edge bearings and a link 12 with an intermediate lever 13 supported from the cross bars 11 by hangers 14 at one end and provided at the other end with a knife edge resting in a bearing block of a shackle 15 pivotally attached to the lower end of a coil spring 16. The upper end of the spring is connected to a shackle 17 depending from the shorter arm of the main lever 18, the fulcrum of which is carried by brackets 19. The longer arm of the lever 18 is provided with a knife edge from which is supported a shackle 20, yoke 21, and threaded bush 22 that carries the weight resistant spring 23, the lower end of which is connected to a shackle 24 having screws 25, 25a passing through a bracket 26 for adjusting the tension of the spring. Another spring 28 arranged in opposition to the spring 23 is connected to a shackle 28a and a bracket 27 and is provided with means for adjusting its tension. The outer end of the main lever is connected to a dash pot 30 and near thereto is a bracket 31 to which is pivotally attached a rack 32 meshing with a pinion 33 on the spindle 34 of the indicating pointer 36.
GB1203827A 1927-05-05 1927-05-05 Improvements in or relating to crane weighing apparatus Expired GB293153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1203827A GB293153A (en) 1927-05-05 1927-05-05 Improvements in or relating to crane weighing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1203827A GB293153A (en) 1927-05-05 1927-05-05 Improvements in or relating to crane weighing apparatus

Publications (1)

Publication Number Publication Date
GB293153A true GB293153A (en) 1928-07-05

Family

ID=9997293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1203827A Expired GB293153A (en) 1927-05-05 1927-05-05 Improvements in or relating to crane weighing apparatus

Country Status (1)

Country Link
GB (1) GB293153A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207650B (en) * 1958-11-14 1965-12-23 George Salter & Company Ltd Weighing device for hanging loads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207650B (en) * 1958-11-14 1965-12-23 George Salter & Company Ltd Weighing device for hanging loads

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