GB1232861A - - Google Patents

Info

Publication number
GB1232861A
GB1232861A GB1232861DA GB1232861A GB 1232861 A GB1232861 A GB 1232861A GB 1232861D A GB1232861D A GB 1232861DA GB 1232861 A GB1232861 A GB 1232861A
Authority
GB
United Kingdom
Prior art keywords
pence
new
scales
shillings
disc
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
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 filed Critical
Publication of GB1232861A publication Critical patent/GB1232861A/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
    • 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
    • G06G1/085—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 borne by a cylinder
    • 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
    • G06G1/0073—Hand manipulated computing devices characterised by a specific application for commerce, bank or invoicing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,232,861. Decimal currency converter. D. S. EVANS. 12 June, 1969 [30 March, 1968; 5 Feb., 1969], Nos. 15457/68 and 6308/69. Heading G4B. A decimal currency converter comprises a first scale representing shillings, a second scale representing pennies and third and fourth scales representing new pence, wherein the first and third scales are on one carrier and the second and fourth scales are on another carrier so that when the carriers are moved relative to each other to indicate at a position shillings and pence a conversion to new pence is also displayed. In Fig. 3 the two carriers are independently rotatable discs 7, 8 mounted behind a cover 9 having apertures 11, 13 through which the new pence conversion is displayed. In another embodiment (Figs. 4 and 5, not shown) the scales are rearranged and mounted on superposed rotatable discs, the upper disc having an appropriate aperture, or on relatively slidable members. In Fig. 6c an upper rotatable disc 14<SP>1</SP> is apertured so that one of two pence scales on a lower disc 14 can be adjusted to the appropriate odd or even shillings scales on disc 14<SP>1</SP> and the new pence equivalent, shown partly on each disc, can be read off directly e.g. 11/5d. equals 57 new pence as shown. In Figs. 7a, 7b and 8 (not shown), four carriers are provided, a first pair for pence and even shillings and a second pair for pence and odd shillings the new pence scale associated with the pence scale on said second pair being five new pence higher than that on said first pair. These scales are slid linearly or mounted on coaxial cylinders. In Fig. 10 partially overlapping first and second slides 34, 35 respectively are slid linearly and each has two new pence scales. Slide 34 has apertures 33 so that the equivalent new pence are indicated, e.g. 3/10d. equals 19 new pence. These scales may be mounted on rotatable coaxial discs or on non coaxial rotatable discs which partially overlap and are mounted within an apertured cover (Figs. 11 to 14, not shown).
GB1232861D 1968-03-30 1968-03-30 Expired GB1232861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1545768 1968-03-30

Publications (1)

Publication Number Publication Date
GB1232861A true GB1232861A (en) 1971-05-19

Family

ID=10059482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232861D Expired GB1232861A (en) 1968-03-30 1968-03-30

Country Status (1)

Country Link
GB (1) GB1232861A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272674A (en) 1977-10-31 1981-06-09 Tokyo Keiki Company Ltd. Check digit calculator
US4419572A (en) 1977-10-31 1983-12-06 Tokyo Keiki Company Ltd. Check digit calculator
FR2570204A1 (en) * 1984-09-11 1986-03-14 Schaeffer Marcel Annular bracelet for carrying out currency conversion calculations
FR2585149A1 (en) * 1985-07-16 1987-01-23 Szlachetka Regis Circular slide rule (information technology use)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272674A (en) 1977-10-31 1981-06-09 Tokyo Keiki Company Ltd. Check digit calculator
US4419572A (en) 1977-10-31 1983-12-06 Tokyo Keiki Company Ltd. Check digit calculator
FR2570204A1 (en) * 1984-09-11 1986-03-14 Schaeffer Marcel Annular bracelet for carrying out currency conversion calculations
FR2585149A1 (en) * 1985-07-16 1987-01-23 Szlachetka Regis Circular slide rule (information technology use)

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Legal Events

Date Code Title Description
PS Patent sealed
48R Reference inserted (sect. 8/1949)
PLNP Patent lapsed through nonpayment of renewal fees