GB582529A - Braking mechanism - Google Patents
Braking mechanismInfo
- Publication number
- GB582529A GB582529A GB5671/44A GB567144A GB582529A GB 582529 A GB582529 A GB 582529A GB 5671/44 A GB5671/44 A GB 5671/44A GB 567144 A GB567144 A GB 567144A GB 582529 A GB582529 A GB 582529A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- motor
- current
- march
- brake
- 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
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/18—Brakes with three or more brake-blocks
-
- 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)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
582,529. Brakes. DUMORE CO. March 28, 1944, No. 5671. Convention date, March 29, 1943. [Class 103 (i)] [Also in Group XXXIII] A motor-braking means comprises arcshaped springs biased to engage friction members with the internal surface of a drum, electromagnetic means being provided to pull the springs into non-braking position. As shown the brake-shoe linings 25 are each riveted to a curved armature 24 and a curved spring spring member 23 having lugs 27 which are received loosely in notches 28 on the periphery of a magnetic spool frame 29 forming part of the electromagnet. The electromagnet comprises a central ring 30 having extensions carrying discs 31 of magnetic iron spaced from the ring 30 by insulating discs 32. A current coil 33 and a potential coil 34 are mounted on the spool, the coil 33 being in series with the motor driving the shaft 12, and the coil 34 being connected across the brushes of the motor. This arrangement gives a heavy initial current through the coil 33 to release the brake, and an increasing current through the coil 34 to maintain the release whilst the motor is in operation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US582529XA | 1943-03-29 | 1943-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB582529A true GB582529A (en) | 1946-11-20 |
Family
ID=22015634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5671/44A Expired GB582529A (en) | 1943-03-29 | 1944-03-28 | Braking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB582529A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1255408B (en) * | 1964-11-13 | 1967-11-30 | Heemaf Ska Motorenwerk Ag | Auxiliary release device for the brake shoes of a normally electromagnetically released spring-pressure inner-shoe brake |
| GB2351782A (en) * | 1999-07-02 | 2001-01-10 | Matrix Eng Ltd | Electro-magnetically releasable brake |
| US10442659B2 (en) | 2015-06-29 | 2019-10-15 | Otis Elevator Company | Electromagnetic brake system for elevator application |
-
1944
- 1944-03-28 GB GB5671/44A patent/GB582529A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1255408B (en) * | 1964-11-13 | 1967-11-30 | Heemaf Ska Motorenwerk Ag | Auxiliary release device for the brake shoes of a normally electromagnetically released spring-pressure inner-shoe brake |
| GB2351782A (en) * | 1999-07-02 | 2001-01-10 | Matrix Eng Ltd | Electro-magnetically releasable brake |
| US10442659B2 (en) | 2015-06-29 | 2019-10-15 | Otis Elevator Company | Electromagnetic brake system for elevator application |
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