GB1392585A - Calculating device - Google Patents
Calculating deviceInfo
- Publication number
- GB1392585A GB1392585A GB2878973A GB2878973A GB1392585A GB 1392585 A GB1392585 A GB 1392585A GB 2878973 A GB2878973 A GB 2878973A GB 2878973 A GB2878973 A GB 2878973A GB 1392585 A GB1392585 A GB 1392585A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- scales
- panel
- scale
- calculating device
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
1392585 Calculating device PEORIA JOURNAL STAR Inc 18 June 1973 [13 July 1972] 28789/73 Heading G4B A calculating device comprises panels 3, 5 and 7, Fig. 8, foldable at lines 9 and 11 to the closed form shown in Figs 1 and 2, wherein scale 21 overlies a portion of a strip 13, which bears scales and is carried by panel 3 and is movable parallel to the fold lines 9 and 11. Strip 13 may be an endless belt or merely a strip with two ends and may be threaded through two slots formed in panel 3, Figs. 11 and 12 (not shown). In the form shown, strip 13 is an endless belt retained in notches 15, 17 of panel 3. The scales may be linear, square, square root or, as shown, logarithmic. The belt shown has four logarithmic scales, two on each face. Each scale includes a longitudinal coloured stripe, the edges of which provide an indication of the position of the decimal point. Indicator 23 occurs at "zero" on a linear scale and at value 1À00 on other scales. The device may be used for currency conversions. A transparent sheath, Figs. 13, 14 (not shown), may be provided for holding the device in its closed form.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27162972A | 1972-07-13 | 1972-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1392585A true GB1392585A (en) | 1975-04-30 |
Family
ID=23036386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2878973A Expired GB1392585A (en) | 1972-07-13 | 1973-06-18 | Calculating device |
Country Status (2)
Country | Link |
---|---|
US (1) | US3754702A (en) |
GB (1) | GB1392585A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6026579A (en) * | 1997-05-27 | 2000-02-22 | Hughes Electronics Corporation | Foldable geostationary satellite antenna pointing guide and method |
FR2785067B1 (en) * | 1998-10-23 | 2001-12-28 | D Estais Mathias Tenaille | CONVERSION DEVICE BETWEEN TWO UNIT SYSTEMS, ESPECIALLY MONETARY UNITS, AND A STYLOGRAPHER PROVIDED WITH THIS DEVICE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2893630A (en) * | 1956-04-30 | 1959-07-07 | Lawrence J Kamm | Automatic decimal point slide rule |
US3045908A (en) * | 1959-02-24 | 1962-07-24 | Edward F Donovan | Slide calculator |
US3282500A (en) * | 1965-08-11 | 1966-11-01 | Keuffel & Esser Co | Calculating device for solving unknown qualitative parameters |
GB1306946A (en) * | 1969-10-31 | 1973-02-14 | Int Nickel Ltd | Slide-rules |
-
1972
- 1972-07-13 US US00271629A patent/US3754702A/en not_active Expired - Lifetime
-
1973
- 1973-06-18 GB GB2878973A patent/GB1392585A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3754702A (en) | 1973-08-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |