GB1006738A - Improvements in or relating to lifts - Google Patents
Improvements in or relating to liftsInfo
- Publication number
- GB1006738A GB1006738A GB1442/64A GB144264A GB1006738A GB 1006738 A GB1006738 A GB 1006738A GB 1442/64 A GB1442/64 A GB 1442/64A GB 144264 A GB144264 A GB 144264A GB 1006738 A GB1006738 A GB 1006738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- secured
- drum
- brake
- cage
- wheel
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
1,006,738. Preventing overspeeding of lift cages; hoists. TORNBORG & LUNDBERG A.B. Jan. 13, 1964 [Jan. 15, 1963], No. 1442/64. Headings B8H and B8L. A lift cage 3 is movable up and down a mast 1 by hoisting gear 9 and ropes 8, 10 which are secured to and wound in opposite directions on a rope drum 11 rotatably mounted on the cage 3, the rope 8 passing over pulleys 6, 7 on a crosshead 5 to the hoisting gear 9 and the rope 10 being secured to the crosshead 5. A device for preventing overspeeding of the cage is mounted on the cage and adapted to brake the drum 11 when the cage reaches a predetermined speed due to breakage of one of the ropes 8, 10. As shown in Fig. 3, a brake drum 24 is secured to the drum 11 and is acted on by a brake band 23 connected to arms 21, 22 on an arm 19 which is pivoted on a shaft 18. When the speed of rotation of the drums 11, 24 reaches a predetermined value, pawls 25, 26 which are pivotally mounted within the drum 24 rotate against the action of compression springs 29 and engage teeth 15 on a wheel 16, which is freely rotatable on the shaft 12 supporting the drums 11, 24, thereby rotating the wheel 16 together with a cam 17 secured thereto. Rotation of the cam 17, which is engaged by a roller 20 on the arm 19, rotates the arm 19 on the shaft 18 and thereby applies the brake. In a modification, Fig. 5, the cam 17 is replaced by pins 41, 42 which are secured to the toothed wheel 16 and which, on rotation of the wheel 16, engage an arcuate head 40 secured to link 35 of toggle linkage 34, 35, extending between pivoted arms 32, 33 which are provided with brake shoes 30. The arms 32, 33 are moved towards each other by a spring 38 to engage the brake shoes 30 with the brake drum when the wheel 16 is rotated and breaks the toggle linkage 34, 35.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE42663 | 1963-01-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1006738A true GB1006738A (en) | 1965-10-06 |
Family
ID=20256553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1442/64A Expired GB1006738A (en) | 1963-01-15 | 1964-01-13 | Improvements in or relating to lifts |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1006738A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2511995A1 (en) * | 1981-08-26 | 1983-03-04 | Verlinde Sa | Safety brake for motorised lifting winch - uses speed sensor to activate electromagnet which locks ratchet wheel friction coupled to winder drum |
EP0114004A1 (en) * | 1983-01-13 | 1984-07-25 | VERLINDE, Société Anonyme | Safety device for a lifting apparatus, and lifting apparatus provided with this device |
EP1645259A2 (en) * | 2004-10-07 | 2006-04-12 | Days Healthcare UK Limited | Invalid hoist |
CN118458541A (en) * | 2024-07-09 | 2024-08-09 | 淮北矿业股份有限公司 | Speed limiting protection device for mine hoist |
-
1964
- 1964-01-13 GB GB1442/64A patent/GB1006738A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2511995A1 (en) * | 1981-08-26 | 1983-03-04 | Verlinde Sa | Safety brake for motorised lifting winch - uses speed sensor to activate electromagnet which locks ratchet wheel friction coupled to winder drum |
EP0114004A1 (en) * | 1983-01-13 | 1984-07-25 | VERLINDE, Société Anonyme | Safety device for a lifting apparatus, and lifting apparatus provided with this device |
EP1645259A2 (en) * | 2004-10-07 | 2006-04-12 | Days Healthcare UK Limited | Invalid hoist |
EP1645259A3 (en) * | 2004-10-07 | 2007-07-04 | Days Healthcare UK Limited | Invalid hoist |
GB2418902B (en) * | 2004-10-07 | 2008-06-25 | Days Medical Aids Ltd | Invalid hoist |
CN118458541A (en) * | 2024-07-09 | 2024-08-09 | 淮北矿业股份有限公司 | Speed limiting protection device for mine hoist |
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