GB778630A - Improvements relating to a co-ordinate converting mechanism - Google Patents
Improvements relating to a co-ordinate converting mechanismInfo
- Publication number
- GB778630A GB778630A GB2811554A GB2811554A GB778630A GB 778630 A GB778630 A GB 778630A GB 2811554 A GB2811554 A GB 2811554A GB 2811554 A GB2811554 A GB 2811554A GB 778630 A GB778630 A GB 778630A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carriage
- pulley
- index member
- loop
- carriages
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
Abstract
778,630. Calculating apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 21, 1955 [Sept. 29,1954], No. 28115/54. Class 106 (1). Mechanism for converting polar co-ordinates to rectangular co-ordinates and vice-versa comprises an index member 5 movable along a pivoted radius arm 6, carriages 1 and 2 movable along respective rectangular co-ordinate axes, and a compensating tape and pulley system interconnecting the carriages and index member. In the mechanism shown, there are two tapes 8 and 15, indicated respectively by full and broken lines. The first extends between fixed points A and B and is formed with a loop from the carriage 1 to a pulley 10 on the index member 5. A further loop is formed between a fixed pulley 13 and a pulley 14 on the carriage 2. By this arrangement of the tape 8, the carriage 2 and index member 5 are constrained to maintain horizontal.alignment. The complementary tape 15 is similarly formed with a loop from the carriage 2 to a pulley 23 on the index member and a loop from a fixed pulley 19 and a pulley 20 on the carriage 1, so as to maintain vertical alignment of the carriage 1 and index member. Springs 21 and 22 bias the carriages towards the origin of the system. When used as a height computer, compensation for curvature of the earth may be introduced by providing an appropriately curved track for the carriage 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2811554A GB778630A (en) | 1954-09-29 | 1954-09-29 | Improvements relating to a co-ordinate converting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2811554A GB778630A (en) | 1954-09-29 | 1954-09-29 | Improvements relating to a co-ordinate converting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB778630A true GB778630A (en) | 1957-07-10 |
Family
ID=10270510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2811554A Expired GB778630A (en) | 1954-09-29 | 1954-09-29 | Improvements relating to a co-ordinate converting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB778630A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207585A (en) * | 2014-05-30 | 2021-01-12 | J·D·佩恩 | Positioning system |
-
1954
- 1954-09-29 GB GB2811554A patent/GB778630A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207585A (en) * | 2014-05-30 | 2021-01-12 | J·D·佩恩 | Positioning system |
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