GB1499538A - Spring weighing mechanism - Google Patents

Spring weighing mechanism

Info

Publication number
GB1499538A
GB1499538A GB5137775A GB5137775A GB1499538A GB 1499538 A GB1499538 A GB 1499538A GB 5137775 A GB5137775 A GB 5137775A GB 5137775 A GB5137775 A GB 5137775A GB 1499538 A GB1499538 A GB 1499538A
Authority
GB
United Kingdom
Prior art keywords
arm
pinion
screw
lug
lever
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
GB5137775A
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.)
Salter Housewares Ltd Great Britain
Original Assignee
Salter Housewares Ltd Great Britain
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 Salter Housewares Ltd Great Britain filed Critical Salter Housewares Ltd Great Britain
Priority to GB5137775A priority Critical patent/GB1499538A/en
Priority to FR7617287A priority patent/FR2335831A1/en
Priority to DE19767639078 priority patent/DE7639078U1/en
Priority to US05/750,883 priority patent/US4119162A/en
Publication of GB1499538A publication Critical patent/GB1499538A/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
    • G01G3/08—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a leaf spring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sorting Of Articles (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

1499538 Spring balance SALTER HOUSEWARES Ltd 16 Dec 1976 [16 Dec 1975] 51377/75 Heading G1W A spring balance comprises a parallel motion leaf spring unit 65, an intermediate lever 15 arranged to pivot about a horizontal axis in accordance with the vertical deflection of the spring unit and having integral gear teeth 69, and a pinion 14 meshing with the teeth 69, the pinion being rotatable about a vertical axis and carrying a weight indicating member 23. The spring unit 65 comprises a pair of leaf springs 28 inter-connecting frame members 26, 29. Frame member 29 is located within slots 80 of pedestal 67 and fixed thereto by screws 22. Frame member 26 is secured to a bracket 24 by locating studs 82 and screw 27, and bracket 24 supports a weighing platform 1, an extension 70 of member 26 co-operating with a screw (not shown) fitting in lug 116 to limit upward movement of platform 1. A plastics block 12 is secured to frame member 29 by an angle bracket 25 formed of a ductile metal which may be deformed during assembly to adjust the position of block 12. Pinion 14, which is also of plastics material, is mounted on block 12 by means of a fixed lug 88 and a snap-in lug 13. Pointer 23 is formed of wire and includes a rectangular loop which clips into a groove 85 on the pinion 14. The lever 15 is pivoted on block 12 by means of trunnions 95. Lever 15 is formed of plastics material and is mounted such that the arm 97 carrying the integral teeth 69 is lightly laterally flexed by engagement with the pinion to provide a force biasing the arm 97 and the pinion towards each other, grooves 114 in the arm 97 increasing its flexibility. The other arm 98 of the lever 15 has a lug 100 biased, by means of spring 112, into engagement with a plastics cap 17 mounted on the end of a screw 19 which is mounted on the end of a plastics cantilever arm 16. Arm 16 is rigidly fixed to frame member 26 by means of a lug 102 on the arm engaging a slot 104 on the member 26, and by means of a screw 20. Screw 109 may be rotated through an aperture 108 in member 26 to vary its axial position relative to member 26 and hence to adjust the balance sensitivity. A screw 200 alters the initial vertical position of the free end of arm 16 to set the zero.
GB5137775A 1975-12-16 1975-12-16 Spring weighing mechanism Expired GB1499538A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5137775A GB1499538A (en) 1975-12-16 1975-12-16 Spring weighing mechanism
FR7617287A FR2335831A1 (en) 1975-12-16 1976-06-08 SPRING AND BALANCE WEIGHING MECHANISM PROVIDED WITH THE SAID MECHANISM
DE19767639078 DE7639078U1 (en) 1975-12-16 1976-12-14 SPRING BALANCE MECHANISM
US05/750,883 US4119162A (en) 1975-12-16 1976-12-15 Kitchen or household weighing balance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5137775A GB1499538A (en) 1975-12-16 1975-12-16 Spring weighing mechanism

Publications (1)

Publication Number Publication Date
GB1499538A true GB1499538A (en) 1978-02-01

Family

ID=10459770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5137775A Expired GB1499538A (en) 1975-12-16 1975-12-16 Spring weighing mechanism

Country Status (3)

Country Link
DE (1) DE7639078U1 (en)
FR (1) FR2335831A1 (en)
GB (1) GB1499538A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202055A (en) * 1987-03-12 1988-09-14 Johnson Measures And Weights L Weighing scale

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202055A (en) * 1987-03-12 1988-09-14 Johnson Measures And Weights L Weighing scale
GB2202055B (en) * 1987-03-12 1991-01-16 Johnson Measures And Weights L Weighing scale

Also Published As

Publication number Publication date
DE7639078U1 (en) 1977-11-24
FR2335831A1 (en) 1977-07-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee