GB319120A - Means for automatically controlling an electro-magnetic device - Google Patents
Means for automatically controlling an electro-magnetic deviceInfo
- Publication number
- GB319120A GB319120A GB2394428A GB2394428A GB319120A GB 319120 A GB319120 A GB 319120A GB 2394428 A GB2394428 A GB 2394428A GB 2394428 A GB2394428 A GB 2394428A GB 319120 A GB319120 A GB 319120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solenoid
- contact
- lever
- core
- circuit
- 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
- G04C1/00—Winding mechanical clocks electrically
- G04C1/02—Winding mechanical clocks electrically by electromagnets
- G04C1/028—Winding mechanical clocks electrically by electromagnets with linearly moving armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Manipulator (AREA)
Abstract
319,120. Quartier, E. Aug. 20, 1928. Electric clocks. - An arrangement for automatically controlling an electromagnetic device such as may be employed for driving an electric clock has a contact making rocking lever adapted to touch a fixed contact, the contact lever being pivotally mounted at or near the free end of an oscillating lever which is operated by the electromagnet and is under the action of one or more springs tending to cause it to take up one or other of two extreme positions with respect to said part. As shown in Fig. 1, a pivoted arm g carrying the core j of the operating solenoid w carries in a forked end 14 a contact lever 7 which is constrained by springs 18 to take up one or other of two extreme positions in which it engages a fixed contact 8 in the solenoid circuit or a stop 22. On attraction of the solenoid core the lever g moves a pawl f pivoted thereto along the periphery of a toothed drum e connected through an escapement to the minute hand of the clock. The contact lever 7 is moved to the dotted position during this movement with a quick action so breaking the solenoid circuit. The stepping of the pawl strains a spring h which drives the drum c slowly until the spring 18 is again brought across the dead-centre position. A quick-action closing movement of the solenoid circuit then occurs and the cycle of operations is repeated. The fixed contact may be in the form of a divided spring blade for obtaining a yielding contact between it and the rocking contact member. The solenoid is provided with a fixed core s and a surrounding magnetic shell n, o for decreasing the reluctance of its magnetic circuit and the lower conical tip of the movable core is provided with a brass projection 6 for preventing adhesion to the fixed core. In a modified form the movable core is arranged in the lower portion of the solenoid and the electromagnetically-controlled oscillating lever is mounted below the operating solenoid. The contact lever in this form is used to control the circuit of a secondary electromagnetic device, independent means being provided to control the solenoid. The operating solenoid may be replaced by an electromagnet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2394428A GB319120A (en) | 1928-08-20 | 1928-08-20 | Means for automatically controlling an electro-magnetic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2394428A GB319120A (en) | 1928-08-20 | 1928-08-20 | Means for automatically controlling an electro-magnetic device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB319120A true GB319120A (en) | 1929-09-19 |
Family
ID=10203844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2394428A Expired GB319120A (en) | 1928-08-20 | 1928-08-20 | Means for automatically controlling an electro-magnetic device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB319120A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2442395A (en) * | 1944-10-28 | 1948-06-01 | Sylvanus W Bramley | Electromagnetic clock winding mechanism |
-
1928
- 1928-08-20 GB GB2394428A patent/GB319120A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2442395A (en) * | 1944-10-28 | 1948-06-01 | Sylvanus W Bramley | Electromagnetic clock winding mechanism |
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