FR537186A - Slide rule for gears - Google Patents
Slide rule for gearsInfo
- Publication number
- FR537186A FR537186A FR537186DA FR537186A FR 537186 A FR537186 A FR 537186A FR 537186D A FR537186D A FR 537186DA FR 537186 A FR537186 A FR 537186A
- Authority
- FR
- France
- Prior art keywords
- gears
- slide rule
- rule
- slide
- 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
- G06G1/02—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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR537186T | 1921-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR537186A true FR537186A (en) | 1922-05-17 |
Family
ID=8927317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR537186D Expired FR537186A (en) | 1921-06-20 | 1921-06-20 | Slide rule for gears |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR537186A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2541858A (en) * | 1947-09-26 | 1951-02-13 | Paul F Boehm | Cursor with lock |
US2706081A (en) * | 1952-07-02 | 1955-04-12 | Warren P Hunnicutt | Building cost slide rule |
-
1921
- 1921-06-20 FR FR537186D patent/FR537186A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2541858A (en) * | 1947-09-26 | 1951-02-13 | Paul F Boehm | Cursor with lock |
US2706081A (en) * | 1952-07-02 | 1955-04-12 | Warren P Hunnicutt | Building cost slide rule |
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