GB755094A - Elevator safety device - Google Patents
Elevator safety deviceInfo
- Publication number
- GB755094A GB755094A GB3441454A GB3441454A GB755094A GB 755094 A GB755094 A GB 755094A GB 3441454 A GB3441454 A GB 3441454A GB 3441454 A GB3441454 A GB 3441454A GB 755094 A GB755094 A GB 755094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- jaw
- cam
- shoe
- cage
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
- F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
-
- 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
- B66B5/185—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 by acting on main ropes or main cables
-
- 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
- B66B5/20—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 by means of rotatable eccentrically-mounted members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
755,094. Catch gear for lifts. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK DER FIRMA P. M. DUYVIS & CO. Nov. 26, 1954, No. 34414/54. Class 78 (3). A brake for limiting the speed of a lift comprises a pair of friction material faced shoes 1, 2 which grip the hoisting rope (not shown) when the cage exceeds a predetermined speed. The shoe 2 is moved towards shoe 1 by a cam 13 operatively connected to a fluid pressure thruster 10 which is actuated by means (not shown) responsive to cage speed. Wedges 16 located on each side of cam 13 between the jaw 2 and rollers 15, and urged downwardly by their own weight or by a spring (not shown), lock the jaw 2 in the braking position until released manually.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3441454A GB755094A (en) | 1954-11-26 | 1954-11-26 | Elevator safety device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3441454A GB755094A (en) | 1954-11-26 | 1954-11-26 | Elevator safety device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB755094A true GB755094A (en) | 1956-08-15 |
Family
ID=10365347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3441454A Expired GB755094A (en) | 1954-11-26 | 1954-11-26 | Elevator safety device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB755094A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105605200A (en) * | 2016-04-03 | 2016-05-25 | 王美金 | Stay wire pulley device capable of stopping slip through current |
US11661314B2 (en) | 2016-11-10 | 2023-05-30 | Inventio Ag | Cable brake, elevator car and elevator system |
-
1954
- 1954-11-26 GB GB3441454A patent/GB755094A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105605200A (en) * | 2016-04-03 | 2016-05-25 | 王美金 | Stay wire pulley device capable of stopping slip through current |
CN105605200B (en) * | 2016-04-03 | 2017-12-29 | 王美金 | It is a kind of to pass through the pull wire pulley device of electric current on-slip |
US11661314B2 (en) | 2016-11-10 | 2023-05-30 | Inventio Ag | Cable brake, elevator car and elevator system |
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