GB725277A - Improvements in or relating to beat setting means for pendulum clocks - Google Patents
Improvements in or relating to beat setting means for pendulum clocksInfo
- Publication number
- GB725277A GB725277A GB408/53A GB40853A GB725277A GB 725277 A GB725277 A GB 725277A GB 408/53 A GB408/53 A GB 408/53A GB 40853 A GB40853 A GB 40853A GB 725277 A GB725277 A GB 725277A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pendulum
- crutch
- lever
- spindle
- pallet
- 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
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B18/00—Mechanisms for setting frequency
- G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
725,277. Clocks. ROSE, R. J. C. Jan. 6, 1953 [June 19, 1952], No. 408/53. Class 139. A pendulum clock beat setting device comprises a member for locking the pendulum in a plumb position, a friction clutch in the operative connection between the pallet and the pendulum, an element adapted to locate the pallet in the correct seat position relatively to the escape wheel against the action of the friction clutch, and means for ensuring that the pendulum is locked before the pallet is located in position. The pendulum crutch 8, Figs. 1 and 4, is connected to one half of a friction clutch 14, the other half of which is fixed to the arbor 13 carrying the pallet anchor 17. The upper end 7 of the crutch 8 lies adjacent a curved surface 11 of a lever 4 freely pivoted on a spindle 2 and urged clockwise by a spring 5 to normally engage a projection 6 of a lever 1 fixed to the spindle 2 and extending above the anchor 17. To set the clock in correct beat the pendulum 25 and its crutch 8 are first located in a plumb position. The spindle 2 and the lever are then rotated clockwise by a manually 'operated linkage (Fig. 6, not shown). The top 7 of the crutch is thereupon engaged by a slot 12 in the surface 11 of the lever 4 to lock the pendulum and crutch in the plumb position and a spring pressed pawl 9 engages a notch 15 in the crutch half of the friction clutch 14. Upon continued movement of the spindle 2 the lever 1 strikes the anchor 17 and correctly locates it with respect to the escape wheel 18 Fig. 3, not shown). As the said linkage is released the levers 1 and 4 are returned to their initial positions and the pawl 9 jerks the clutch 14 to impulse the pendulum. In a modification (Fig. 7) the anchor 17 carries a member 26, the ends 28 of which co-operate with the lever 1, the outer end of which has an adjustable screw 27 so that the exact seat position can be determined. In other modifications (Figs. 8 and 9, not shown) one of the parts 1 or 17 has a V-shaped notch which is engaged by a projection on the other part.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA725277X | 1952-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB725277A true GB725277A (en) | 1955-03-02 |
Family
ID=25565788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB408/53A Expired GB725277A (en) | 1952-06-19 | 1953-01-06 | Improvements in or relating to beat setting means for pendulum clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB725277A (en) |
-
1953
- 1953-01-06 GB GB408/53A patent/GB725277A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB976404A (en) | Improved hinge means for interconnecting lever arms | |
| US3796041A (en) | Reset mechanisms | |
| GB725277A (en) | Improvements in or relating to beat setting means for pendulum clocks | |
| GB940285A (en) | Improvements in or relating to alarm clocks | |
| GB787002A (en) | Improvements in and relating to time-keeping devices | |
| GB884649A (en) | Improvements in or relating to alarm clocks | |
| US319145A (en) | Stop-watch | |
| US3016687A (en) | Safety automatic regulator for timepieces | |
| GB822857A (en) | Quick release buckle | |
| US2982085A (en) | Winding and setting device for timepieces | |
| GB1313089A (en) | Stop mechanism for a stop watch or a chronograph | |
| GB825660A (en) | Fluid-tight winding means for a keyless watch | |
| GB698763A (en) | Improvements in and relating to chronographs | |
| GB707829A (en) | Winding and hand-setting mechanism for timepieces | |
| GB716824A (en) | Electric time switch | |
| GB651422A (en) | Improvements in and relating to a centre-seconds time piece with stop and resetting to zero mechanism | |
| GB474621A (en) | Improvements in or relating to timed controlling devices for electric switches, valves and the like | |
| US3168803A (en) | Time measuring instrument | |
| GB484898A (en) | Pendulum locking device for clocks | |
| GB609437A (en) | Improvements in or relating to chronographs | |
| GB618300A (en) | Improvements relating to locking or fastening devices | |
| GB618938A (en) | Improvements relating to electric striking clocks | |
| GB823238A (en) | Improvements in or relating to repeating alarm clocks | |
| GB833112A (en) | Alarm repeating mechanism for an alarm clock | |
| GB782720A (en) | Improvements in and relating to an alarum time-piece |