GB249743A - Improvements in safety retaining devices for pit cages and the like - Google Patents
Improvements in safety retaining devices for pit cages and the likeInfo
- Publication number
- GB249743A GB249743A GB21845/25A GB2184525A GB249743A GB 249743 A GB249743 A GB 249743A GB 21845/25 A GB21845/25 A GB 21845/25A GB 2184525 A GB2184525 A GB 2184525A GB 249743 A GB249743 A GB 249743A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- shafts
- guide
- wheels
- wedge
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Abstract
249,743. Janotta, F. June 20, 1925, [Convention date]. No Patent granted (Sealing fee not paid). Catch gear of mine-cage type.-When the hoisting rope breaks, toothed wheels 2 fixed to shafts 4 are forced against opposite sides of the guide 1 by springs 15 and the consequent rotation of the wheels actuates gearing which causes the shafts 4 to move upwards in oblique slots 5 to tighten the grip of the wheels on the guide. Each shaft 4 is mounted in forked bearings 13 supported by a worm wheel 7 mounted on a threaded shaft 10 pivoted at 12. A worm 6 on the shaft 4 meshes with the worm wheel 7 which is attached to a nut 8. The wheels are normally kept away from the guide by a wedge 3 suspended from the hoisting rope and placed between the shafts 4. A rod 11 in alignment with the shaft 10 is secured to a boss 9 on the bearing 13 and carries a wedge 20. As the bearings rise the wedges 20 act on rollers 21 mounted on beH- crank levers 22 which are mounted on shafts 7 and connected by links 18 to a shaft 4. An eccentric 16 on the shaft 17 engages the guide as the shaft 17 is turned.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE249743X | 1925-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB249743A true GB249743A (en) | 1926-04-01 |
Family
ID=5935814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21845/25A Expired GB249743A (en) | 1925-06-20 | 1925-09-01 | Improvements in safety retaining devices for pit cages and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB249743A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122127A (en) * | 1982-06-17 | 1984-01-11 | Smith W G | Method and apparatus for the manufacture of blocks |
| US20160289045A1 (en) * | 2013-11-15 | 2016-10-06 | Inventio Ag | Safety brake for an elevator |
| CN114269672A (en) * | 2019-08-29 | 2022-04-01 | 戴纳泰克动力与科技有限公司 | Electromechanical activation of a one-way emergency stop device for an elevator |
-
1925
- 1925-09-01 GB GB21845/25A patent/GB249743A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122127A (en) * | 1982-06-17 | 1984-01-11 | Smith W G | Method and apparatus for the manufacture of blocks |
| US20160289045A1 (en) * | 2013-11-15 | 2016-10-06 | Inventio Ag | Safety brake for an elevator |
| US9981827B2 (en) * | 2013-11-15 | 2018-05-29 | Inventio Ag | Safety brake for an elevator |
| CN114269672A (en) * | 2019-08-29 | 2022-04-01 | 戴纳泰克动力与科技有限公司 | Electromechanical activation of a one-way emergency stop device for an elevator |
| CN114269672B (en) * | 2019-08-29 | 2023-09-05 | 戴纳泰克动力与科技有限公司 | Electromechanical unidirectional emergency stop device for elevator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB249743A (en) | Improvements in safety retaining devices for pit cages and the like | |
| US1611027A (en) | Double-drum hoist | |
| SU18581A1 (en) | Safety device for mine lifts | |
| US1909435A (en) | Geared electric driving unit | |
| SU37014A1 (en) | Safety coil for rotary drilling machine | |
| GB287907A (en) | Improvements in pulley blocks | |
| AT110898B (en) | Tobacco cutting machine. | |
| GB345035A (en) | Improvements in or relating to safety apparatus for elevators and the like | |
| GB1273436A (en) | Improvements in or relating to weight balancing devices | |
| GB263683A (en) | Improvements relating to rolling mechanisms | |
| US1579292A (en) | Automatic brake mechanism | |
| DE483955C (en) | Small dairy machine | |
| DE390655C (en) | Running brake | |
| US281195A (en) | Differential gearing for hoisting and other purposes | |
| SU17034A1 (en) | A device for grinding the necks of crankshafts in place | |
| AT119166B (en) | Winch. | |
| SU114849A1 (en) | A lifting mechanism, mainly hand-operated, with a drum equipped with a one-sided rotating mechanism | |
| AT103778B (en) | Change gears, especially for the feed rollers of woodworking machines and. like | |
| AT121748B (en) | Compensating device for rotating drilling devices. | |
| GB305774A (en) | Improvements in or relating to brake testing machines | |
| GB306306A (en) | Horizontal bar | |
| DE499878C (en) | Drive pulley | |
| DE450438C (en) | Reel drive for reversing mills | |
| DE406590C (en) | Lifting device for the bear of drophammers | |
| DE626024C (en) | Pointer drive for double pendulum balance |