GB769817A - Improvements in or relating to intermittent gearing particularly for ratio-chance devices for calculating machines - Google Patents
Improvements in or relating to intermittent gearing particularly for ratio-chance devices for calculating machinesInfo
- Publication number
- GB769817A GB769817A GB13962/55A GB1396255A GB769817A GB 769817 A GB769817 A GB 769817A GB 13962/55 A GB13962/55 A GB 13962/55A GB 1396255 A GB1396255 A GB 1396255A GB 769817 A GB769817 A GB 769817A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pinion
- teeth
- block
- cam block
- sector
- 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
- G06G3/00—Devices in which the computing operation is performed mechanically
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
Abstract
769,817. Counting apparatus. CHANGY, F. DE. May 13, 1955 (May 14, 1954], No. 13962/55 Class 106 (1). [Also in Group XXIV] Intermittent toothed gearing for a ratiochange device of a calculating machine comprises a driving gear having a toothed sector 15, Figs. 1 and 3, and a smooth cylindrical portion 16 of a diameter slightly less than the pitch diameter, together with a complete smooth cylindrical extension 17. The teeth 15 cooperate when the gear 15, 16, 17 is moved to the right by a cam block 13 with a toothed pinion 19 having the same number of teeth as the sector 15 and having every alternate tooth truncated down to the pitch diameter. The cylindrical portions 16, 17 co-operate with the teeth on either side of the truncated teeth to form a lock for the pinion 19 when the teeth 15 are disengaged therefrom. A similar intermittent drive of variable ratio is provided between a block 20 of pinions with different numbers of teeth and different smooth cylindrical portions 21. The pinions are adapted to drive selectively an axially movable pinion 26 which has alternate teeth reduced to the pitch circle (see Fig. 2) to provide locking engagement with the smooth portions of pinion block 20. A shaft 3 driven by a counting apparatus drives a worm wheel 10 which through an elastic coupling actuates periodically a pivoted arm 31 carrying a button 14 co-operating with the cam block 13. On each actuation of the arm 31 the cam block 13 is moved to the right to cause gear sector 15 to engage and rotate pinion 19 from an auxiliary power shaft 4 for one revolution, the cam block 13 then being disengaged to raturn to the left and hold pinion 19 locked. The pinion 19 is connected to and drives the pinion block 20 one revolution which results in a drive of the totalizer shaft 5 an amount depending upon the axia position of pinion 26 which is adjusted by a bar 28 in accordance with a desired parameter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR769817X | 1955-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB769817A true GB769817A (en) | 1957-03-13 |
Family
ID=9184958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13962/55A Expired GB769817A (en) | 1955-05-14 | 1955-05-13 | Improvements in or relating to intermittent gearing particularly for ratio-chance devices for calculating machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB769817A (en) |
-
1955
- 1955-05-13 GB GB13962/55A patent/GB769817A/en not_active Expired
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