JPS5776664A - Magnifcation calculation rule of copying machine - Google Patents

Magnifcation calculation rule of copying machine

Info

Publication number
JPS5776664A
JPS5776664A JP15213180A JP15213180A JPS5776664A JP S5776664 A JPS5776664 A JP S5776664A JP 15213180 A JP15213180 A JP 15213180A JP 15213180 A JP15213180 A JP 15213180A JP S5776664 A JPS5776664 A JP S5776664A
Authority
JP
Japan
Prior art keywords
rule
length
logarithmic scale
magnification
magnifcation
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.)
Pending
Application number
JP15213180A
Other languages
Japanese (ja)
Inventor
Akihiko Sugidate
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP15213180A priority Critical patent/JPS5776664A/en
Publication of JPS5776664A publication Critical patent/JPS5776664A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06G1/10—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by the graduation
    • G06G1/12—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by the graduation logarithmic graduations, e.g. for multiplication

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

PURPOSE:To calculate magnification to be set immediately by a slide rule consisting of a rule having a logarithmic scale of the length of a part used as the standard of an original and another rule having scales of length of expansion and contraction, and magnification. CONSTITUTION:A magnification calculation rule consists of a bse rule 1 made of a circular plastic plate, a slide rule 2 made of a plastic disk as well, and a fitting member 3 to which the two are fitted rotatably in the centers. On the slide rule 2, numbers of a logarithmic scale 6 of [reference length of an original] are provided on the basis of a base line 5 connecting its center part and an index 4 mutually. On the base rule 1, on the other hand, numbers of a logarithmic scale 7 of [length of expansion and contraction] are provided on the basis of a base line connecting its center part and an optional point mutually.
JP15213180A 1980-10-31 1980-10-31 Magnifcation calculation rule of copying machine Pending JPS5776664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15213180A JPS5776664A (en) 1980-10-31 1980-10-31 Magnifcation calculation rule of copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15213180A JPS5776664A (en) 1980-10-31 1980-10-31 Magnifcation calculation rule of copying machine

Publications (1)

Publication Number Publication Date
JPS5776664A true JPS5776664A (en) 1982-05-13

Family

ID=15533724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15213180A Pending JPS5776664A (en) 1980-10-31 1980-10-31 Magnifcation calculation rule of copying machine

Country Status (1)

Country Link
JP (1) JPS5776664A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570204A1 (en) * 1984-09-11 1986-03-14 Schaeffer Marcel Annular bracelet for carrying out currency conversion calculations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570204A1 (en) * 1984-09-11 1986-03-14 Schaeffer Marcel Annular bracelet for carrying out currency conversion calculations

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