GB191209543A - Improvements in Adding Machines. - Google Patents
Improvements in Adding Machines.Info
- Publication number
- GB191209543A GB191209543A GB191209543DA GB191209543A GB 191209543 A GB191209543 A GB 191209543A GB 191209543D A GB191209543D A GB 191209543DA GB 191209543 A GB191209543 A GB 191209543A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- drum
- series
- frame
- levers
- 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
Landscapes
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
9543. Rykner, S. B. April 22. Adding-apparatus; overthrow-preventing mechanism.-A series of numbers is arranged helically on a drum 1 which has a pinion 6 gearing with a rack 7 pivoted to a lever 8 on a shaft 9 having a series of arms 12 for engagement by the flat ends of a series of key-levers 14. These levers are pivoted at different distances from the shaft 9 so as to give a movement proportional to their value. To prevent overthrow, a second shaft 15 having arms 17 also engaging the keys has a catch lever 18 to engage a ratchet-wheel on the drum spindle. A window frame 22 for exhibiting the result is fitted in front of the drum and slides on a shaft 27 and has a stud 23 to engage a spiral cut in the drum. The frame 22 is set on any number to which digits are to be added and the required keys are struck, the units figure of the result is written down and the figures to be carried-on set in the frame, and so on.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191209543T | 1912-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191209543A true GB191209543A (en) | 1912-08-29 |
Family
ID=32368114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191209543D Expired GB191209543A (en) | 1912-04-22 | 1912-04-22 | Improvements in Adding Machines. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191209543A (en) |
-
1912
- 1912-04-22 GB GB191209543D patent/GB191209543A/en not_active Expired
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