GB194331A - Electro magnetic step by step mechanism - Google Patents
Electro magnetic step by step mechanismInfo
- Publication number
- GB194331A GB194331A GB2417921A GB2417921A GB194331A GB 194331 A GB194331 A GB 194331A GB 2417921 A GB2417921 A GB 2417921A GB 2417921 A GB2417921 A GB 2417921A GB 194331 A GB194331 A GB 194331A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pawl
- energized
- stepping
- circuit
- engagement
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H63/00—Details of electrically-operated selector switches
- H01H63/16—Driving arrangements for multi-position wipers
- H01H63/18—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position
- H01H63/20—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position using stepping magnet and ratchet
Landscapes
- Transmission Devices (AREA)
Abstract
194,331. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 12, 1921. Reciprocating and oscillating machines.-Comprises a step-by-step rotating device in which the operating magnet is energized at the beginning and maintained energized to the end of each stroke in one direction of a stepping pawl and then de-energized and so maintained throughout the return stroke of the stepping pawl, the necessary circuit interruption being provided by a single make-and-break contact spring which serves also as a holding pawl. As shown in Figs. 1 and 3, the stepping pawl 2 makes its driving stroke under the action of the spring 10 when the magnet 11 is de-energized, and by means of a lug 6 presses a contact spring 5 into engagement with a similar contact spring 4 which is extended to constitute, a holding pawl in engagement with the driven ratchet wheel 1. By these means the operating magnet is energized to draw down the pawl 2, the circuit at the contacts 5, 4 remaining closed until the pawl engages the next tooth, whereupon the circuit is broken and the pawl 2 rises and drives the wheel. The circuit remains broken until the wheel has completed the one-step movement whereupon the holding pawl engages the next tooth and springs back into engagement with the contact 5. In a modification, the driving stroke is produced when the stepping pawl is attracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2417921A GB194331A (en) | 1921-09-12 | 1921-09-12 | Electro magnetic step by step mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2417921A GB194331A (en) | 1921-09-12 | 1921-09-12 | Electro magnetic step by step mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB194331A true GB194331A (en) | 1923-03-12 |
Family
ID=10207656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2417921A Expired GB194331A (en) | 1921-09-12 | 1921-09-12 | Electro magnetic step by step mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB194331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2630465A (en) * | 1951-08-24 | 1953-03-03 | Bell Telephone Labor Inc | Control for stepping mechanism |
-
1921
- 1921-09-12 GB GB2417921A patent/GB194331A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2630465A (en) * | 1951-08-24 | 1953-03-03 | Bell Telephone Labor Inc | Control for stepping mechanism |
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