GB644944A - Improvements in or relating to slide rules - Google Patents

Improvements in or relating to slide rules

Info

Publication number
GB644944A
GB644944A GB1215248A GB1215248A GB644944A GB 644944 A GB644944 A GB 644944A GB 1215248 A GB1215248 A GB 1215248A GB 1215248 A GB1215248 A GB 1215248A GB 644944 A GB644944 A GB 644944A
Authority
GB
United Kingdom
Prior art keywords
slide
rules
rule
length
relating
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
GB1215248A
Inventor
Leslie Manyweathers
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.)
BLUNDELL RULES Ltd
Original Assignee
BLUNDELL RULES 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 BLUNDELL RULES Ltd filed Critical BLUNDELL RULES Ltd
Priority to GB1215248A priority Critical patent/GB644944A/en
Publication of GB644944A publication Critical patent/GB644944A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
    • G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Adjustable Resistors (AREA)

Abstract

644,944. Slide-rules. BLUNDELL RULES, Ltd. May 3, 1948, No. 12152. [Class 106 (i)] Rotatable adjustment members 10 are disposed in transverse bores 8 in the body 1 of a slide-rule and are so shaped as to flex the body transversely, when rotated, in order to vary the grip of the body on the slide. Each member 10 may, as shown, be a length of stiff spring wire closely fitting its bore 8 and formed with a slight bend in its length. The free end is cranked at 13 to form a finger grip which seats in a recess 14 in the edge of the body. The rule may be made of laminated thermosetting resin plastic as described in Specification 602,286, [Group XV].
GB1215248A 1948-05-03 1948-05-03 Improvements in or relating to slide rules Expired GB644944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1215248A GB644944A (en) 1948-05-03 1948-05-03 Improvements in or relating to slide rules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1215248A GB644944A (en) 1948-05-03 1948-05-03 Improvements in or relating to slide rules

Publications (1)

Publication Number Publication Date
GB644944A true GB644944A (en) 1950-10-18

Family

ID=9999295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1215248A Expired GB644944A (en) 1948-05-03 1948-05-03 Improvements in or relating to slide rules

Country Status (1)

Country Link
GB (1) GB644944A (en)

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