GB1335689A - Time-keeping drive - Google Patents
Time-keeping driveInfo
- Publication number
- GB1335689A GB1335689A GB5117270A GB5117270A GB1335689A GB 1335689 A GB1335689 A GB 1335689A GB 5117270 A GB5117270 A GB 5117270A GB 5117270 A GB5117270 A GB 5117270A GB 1335689 A GB1335689 A GB 1335689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mainspring
- ball
- shaft
- driven
- disc
- 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
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C11/00—Synchronisation of independently-driven clocks
- G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
- G04C11/085—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-motor
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C1/00—Winding mechanical clocks electrically
- G04C1/10—Protection against overwinding
- G04C1/12—Protection against overwinding of the spring
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C15/00—Clocks driven by synchronous motors
- G04C15/0054—Clocks driven by synchronous motors with power-reserve
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Springs (AREA)
Abstract
1335689 Slip clutches ZENTRA ALBERT BURKLE KG 28 Oct 1970 [28 Oct 1969] 51172/70 Heading F2C [Also in Divisions G3 and H1] In a clock or time switch having an electric motor which winds a mainspring to drive an oscillator, the motor is coupled to the mainspring via a torque-limiting device comprising a driving member which entrains a driven member until a desired torque of the mainspring is reached, whereupon one of the members is displaced against a restoring spring to permit the driving member to overrun the driven members As shown, the driving member is a ball 31 fitted in a bore 40 of a gear-wheel 33 which is rotatably mounted on an output shaft 22 by means of a bearing collar 34 and is driven by the motor (13, Fig. 1, not shown) via a gear train. The ball 31 entrains a spherical segment 30 of a disc 29 fixed to the shaft 22 to drive the latter to wind the mainspring (14). When the spring is sufficiently wound, the ball 31 is deflected against the force of a spring disc 41 which is carried on a collar 27 locked to the shaft 22. The disc 41 is provided with an arcuate slot 46 so that the restoring force and thus the mainspring torque may be adjusted by changing the angular position of the collar 27 on the shaft 22. There may be several driving and/or driven members and an alternative arrangement is envisaged in which a ball, which is resiliently mounted in a radial direction, engages between teeth of a gear-wheel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691954193 DE1954193A1 (en) | 1969-10-28 | 1969-10-28 | Time-keeping drive |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1335689A true GB1335689A (en) | 1973-10-31 |
Family
ID=5749441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5117270A Expired GB1335689A (en) | 1969-10-28 | 1970-10-28 | Time-keeping drive |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT308652B (en) |
BE (1) | BE758072A (en) |
CH (2) | CH537612A (en) |
DE (1) | DE1954193A1 (en) |
FR (1) | FR2065558B3 (en) |
GB (1) | GB1335689A (en) |
NL (1) | NL7015834A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158894A (en) * | 1984-05-15 | 1985-11-20 | Westinghouse Brake & Signal | Actuator comprising electric motor and torque limiting device |
GB2214577A (en) * | 1988-02-01 | 1989-09-06 | John Graeme Walker | Sprocket clutch |
-
0
- BE BE758072D patent/BE758072A/en unknown
-
1969
- 1969-10-28 DE DE19691954193 patent/DE1954193A1/en active Pending
-
1970
- 1970-09-25 AT AT870470A patent/AT308652B/en not_active IP Right Cessation
- 1970-10-07 CH CH1483070A patent/CH537612A/en unknown
- 1970-10-07 CH CH1483070D patent/CH1483070A4/xx unknown
- 1970-10-28 NL NL7015834A patent/NL7015834A/xx unknown
- 1970-10-28 GB GB5117270A patent/GB1335689A/en not_active Expired
- 1970-10-28 FR FR7038949A patent/FR2065558B3/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158894A (en) * | 1984-05-15 | 1985-11-20 | Westinghouse Brake & Signal | Actuator comprising electric motor and torque limiting device |
GB2214577A (en) * | 1988-02-01 | 1989-09-06 | John Graeme Walker | Sprocket clutch |
GB2214577B (en) * | 1988-02-01 | 1991-03-13 | John Graeme Walker | Sprocket clutch |
Also Published As
Publication number | Publication date |
---|---|
FR2065558A7 (en) | 1971-07-30 |
CH537612A (en) | 1972-12-29 |
BE758072A (en) | 1971-04-01 |
FR2065558B3 (en) | 1973-02-02 |
AT308652B (en) | 1973-07-10 |
NL7015834A (en) | 1971-05-03 |
CH1483070A4 (en) | 1972-12-29 |
DE1954193A1 (en) | 1971-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |