GB1029281A - Calculating device - Google Patents

Calculating device

Info

Publication number
GB1029281A
GB1029281A GB501662A GB501662A GB1029281A GB 1029281 A GB1029281 A GB 1029281A GB 501662 A GB501662 A GB 501662A GB 501662 A GB501662 A GB 501662A GB 1029281 A GB1029281 A GB 1029281A
Authority
GB
United Kingdom
Prior art keywords
calculating device
feb
scales
circular
mackay
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
GB501662A
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.)
DONALD FREDERICK MACKAY
Original Assignee
DONALD FREDERICK MACKAY
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 DONALD FREDERICK MACKAY filed Critical DONALD FREDERICK MACKAY
Priority to GB501662A priority Critical patent/GB1029281A/en
Publication of GB1029281A publication Critical patent/GB1029281A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/0005—Hand manipulated computing devices characterised by a specific application
    • G06G1/0068—Hand manipulated computing devices characterised by a specific application for conversion from one unit system to another, e.g. from British to metric
    • 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
    • G06G1/08—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with circular or helical scales

Abstract

1,029,281. Circular slide rules. D. F. MACKAY. Feb. 8, 1963 [Feb. 9, 1962], No. 5016/62. Heading G4B. A calculating device comprises superposed, coaxial, relatively rotatable discs having circular logarithmic scales marked on them and juxtaposed so as to be easily compared, and one of the scales has conversion factors indicated thereon so that they can be utilized without the aid of a cursor.
GB501662A 1962-02-09 1962-02-09 Calculating device Expired GB1029281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB501662A GB1029281A (en) 1962-02-09 1962-02-09 Calculating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB501662A GB1029281A (en) 1962-02-09 1962-02-09 Calculating device

Publications (1)

Publication Number Publication Date
GB1029281A true GB1029281A (en) 1966-05-11

Family

ID=9788158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB501662A Expired GB1029281A (en) 1962-02-09 1962-02-09 Calculating device

Country Status (1)

Country Link
GB (1) GB1029281A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065618A1 (en) * 1969-10-31 1971-07-30 Int Nickel Ltd
CN103162600A (en) * 2013-03-07 2013-06-19 华东师范大学 High-accuracy angle measuring device for microwave Prague experiment and measuring method of device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065618A1 (en) * 1969-10-31 1971-07-30 Int Nickel Ltd
US3685727A (en) * 1969-10-31 1972-08-22 Int Nickel Co Calculating device
CN103162600A (en) * 2013-03-07 2013-06-19 华东师范大学 High-accuracy angle measuring device for microwave Prague experiment and measuring method of device

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