GB1275792A - An improvement in or relating to foldable measuring rules - Google Patents

An improvement in or relating to foldable measuring rules

Info

Publication number
GB1275792A
GB1275792A GB952569A GB952569A GB1275792A GB 1275792 A GB1275792 A GB 1275792A GB 952569 A GB952569 A GB 952569A GB 952569 A GB952569 A GB 952569A GB 1275792 A GB1275792 A GB 1275792A
Authority
GB
United Kingdom
Prior art keywords
relating
improvement
knuckle joints
parts
elements
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
GB952569A
Inventor
Alan O'connor Fenton
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.)
William Marples and Sons Ltd
Original Assignee
William Marples and Sons 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 William Marples and Sons Ltd filed Critical William Marples and Sons Ltd
Priority to GB952569A priority Critical patent/GB1275792A/en
Publication of GB1275792A publication Critical patent/GB1275792A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/02—Rulers with scales or marks for direct reading
    • G01B3/04—Rulers with scales or marks for direct reading rigid
    • G01B3/06—Rulers with scales or marks for direct reading rigid folding

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

1275792 Knuckle joints WILLIAM MARPLES & SONS Ltd 23 Jan 1970 [21 Feb 1969] 9525/69 Heading E2F [Also in Division Gl] A folding rule comprises plastics measuring elements (10, 12, 16, 18 Fig. 1 not shown) pivoted together by knuckle joints (20) in which parts 22, 24 of the knuckle joints are moulded integrally with the measuring elements and are reinforced by pairs of metal hinge plates 34, 36 of which root portions are embedded in the ends of the elements and protruding end portions are pivotally connected by a pivot pin 26 extending through them and the integrally moulded parts.
GB952569A 1969-02-21 1969-02-21 An improvement in or relating to foldable measuring rules Expired GB1275792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB952569A GB1275792A (en) 1969-02-21 1969-02-21 An improvement in or relating to foldable measuring rules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB952569A GB1275792A (en) 1969-02-21 1969-02-21 An improvement in or relating to foldable measuring rules

Publications (1)

Publication Number Publication Date
GB1275792A true GB1275792A (en) 1972-05-24

Family

ID=9873675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB952569A Expired GB1275792A (en) 1969-02-21 1969-02-21 An improvement in or relating to foldable measuring rules

Country Status (1)

Country Link
GB (1) GB1275792A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581752A1 (en) * 1985-05-13 1986-11-14 Claude Guiu Measurement instrument of the folding rule type
GB2183720A (en) * 1985-11-29 1987-06-10 Miranda Investments Ltd Hinge mechanism for use with folding structures
GB2398125A (en) * 2003-02-07 2004-08-11 It S Academic Of Illinois Inc Foldable ruler
GB2415663A (en) * 2004-07-01 2006-01-04 Helix Ltd Folding blackboard drawing aids

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581752A1 (en) * 1985-05-13 1986-11-14 Claude Guiu Measurement instrument of the folding rule type
GB2183720A (en) * 1985-11-29 1987-06-10 Miranda Investments Ltd Hinge mechanism for use with folding structures
GB2398125A (en) * 2003-02-07 2004-08-11 It S Academic Of Illinois Inc Foldable ruler
GB2398125B (en) * 2003-02-07 2006-07-19 It S Academic Of Illinois Inc Ruler
GB2415663A (en) * 2004-07-01 2006-01-04 Helix Ltd Folding blackboard drawing aids
GB2415663B (en) * 2004-07-01 2007-10-17 Helix Ltd Stationery items

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees