GB472285A - Improvements in electrically operated clocks - Google Patents
Improvements in electrically operated clocksInfo
- Publication number
- GB472285A GB472285A GB8448/36A GB844836A GB472285A GB 472285 A GB472285 A GB 472285A GB 8448/36 A GB8448/36 A GB 8448/36A GB 844836 A GB844836 A GB 844836A GB 472285 A GB472285 A GB 472285A
- Authority
- GB
- United Kingdom
- Prior art keywords
- class
- arm
- armature
- electromagnet
- battery
- 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
- G04C1/022—Winding mechanical clocks electrically by electromagnets with snap-acting armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
472,285. Electric clocks. SCHILD, M. March 20, 1936, No. 8448. Convention date, June 17, 1935. [Class 139] Winding-apparatus, electric.-A clock has a weighted driving arm 7, 8 which drives the hands through a one-way clutch 9, 6 and is re-energized by an electromagnet 13 the armature 12 of which raises the driving arm about its pivot (the spindle of ratchet wheel 6), the magnet circuit being closed when the arm 7 reaches the bottom of its stroke. The contact is made by the armature 12 with an extension 11 on the arm 7. 3 Is the pendulum. The battery 15 for the electromagnet 13 is carried by a spring metal clip 16 riveted to the movement plate 1. The poles 17, 18 of the battery make contact with clip 16 and pillar 20 respectively. Reference has been directed by the Comptroller to British Specifications 11822/92, 19941/02, 2574 /06, [all in Class 139], 15928/13, [Class 137], 140,856, and 305,327, [both in Class 139], and U.S.A. Specification 1,929,631.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH472285X | 1935-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB472285A true GB472285A (en) | 1937-09-20 |
Family
ID=4516038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8448/36A Expired GB472285A (en) | 1935-06-17 | 1936-03-20 | Improvements in electrically operated clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB472285A (en) |
-
1936
- 1936-03-20 GB GB8448/36A patent/GB472285A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB472285A (en) | Improvements in electrically operated clocks | |
| GB222432A (en) | Improvements in electro-magnetic clocks | |
| GB451817A (en) | Improvements in methods of measuring the magnitude of the force of gravity | |
| GB496515A (en) | Improvements in or connected with toy electric railways | |
| GB202139A (en) | Improvements in, and relating to, clocks, chronographs and the like | |
| GB483461A (en) | Improvements in electric timepieces | |
| GB327169A (en) | Electrical make and break contact for electric clocks and watches | |
| GB550982A (en) | Improvements in or relating to electrically wound clocks | |
| GB420959A (en) | Improvements in and relating to electric clocks | |
| GB282350A (en) | Electric means for re-energising the driving springs of clockwork mechanisms | |
| GB421348A (en) | Improvements in clockwork movements | |
| GB274373A (en) | Improvements in and relating to electrically driven clocks | |
| GB392855A (en) | Improvements in electric clocks | |
| GB370043A (en) | Improvements in and connected with electromagnetic clockwork mechanisms | |
| GB296150A (en) | Improvements in and relating to electrically-wound timepieces | |
| GB463201A (en) | Improvements in electric time pieces | |
| GB403145A (en) | Electric watch | |
| GB549409A (en) | Improvements in electrically driven clocks | |
| GB283167A (en) | Improvements in or relating to electric clocks | |
| GB897813A (en) | An electric clock movement | |
| GB470586A (en) | Improvements in or relating to clock mechanisms | |
| GB227651A (en) | Improvement in electric clocks | |
| GB305327A (en) | Improvements in electrically driven timepieces | |
| GB448559A (en) | An alarm clock electric time switch | |
| GB510657A (en) | Improvements in electric tumbler switches |