GB388817A - Improvements in or relating to safety or emergency devices for use in connection with escalators and moving stairways - Google Patents
Improvements in or relating to safety or emergency devices for use in connection with escalators and moving stairwaysInfo
- Publication number
- GB388817A GB388817A GB2490431A GB2490431A GB388817A GB 388817 A GB388817 A GB 388817A GB 2490431 A GB2490431 A GB 2490431A GB 2490431 A GB2490431 A GB 2490431A GB 388817 A GB388817 A GB 388817A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- escalator
- coil
- escalators
- fire
- 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
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/005—Applications of security monitors
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
388,817. Escalators ; preventing fires. PATTERSON, V. A., Monks Orchard, Oakfield Lane, Dartford, Kent, and HALL, Ltd., J. & E., 10, St. Swithin's Lane, London. Sept. 4, 1931, No. 24904. [Class 78 (i).] Means are provided for automatically stopping, or reversing the normal direction of travel of, one or more escalators upon the occurrence of an emergency, such as fire or failure of the lighting system. The coil LRW of a relay is connected across the lighting bus bars LBB of the building, and on becoming de-energized when the lighting system fails effects the closing of the contacts LR2, and the opening of the contacts LR1. The closing of the contacts LR2 causes the lighting of the signal lamp LL by the battery B. The opening of the contacts LR<1> breaks a circuit including the usual no-volt coil NV which effects the stopping of the escalator in the usual way. This circuit includes the usual emergency push buttons BPB, TPB provided at the bottom and top, respectively, of the escalator. An automatic device (not shown) for turning on water sprinklers in the event of fire is associated with a water relay WR, the contacts CWR of which are in series with the coil FRW of a relay and a manually-operable normally-closed test switch TS. When the coil FRW is energized, the nose of the latch M is depressed and releases the pivoted arm A which under the action of the spring S is moved to open the contacts T1 and close the contacts T2. This action results in the illumination of the signal lamp FL. The switch TS is provided in order that the routine fire installation tests may be carried out without stopping the escalator. When the automatic fire installation includes a water bell or turbine, the arm A may be held by a cam on the shaft of the water bell, and released on rotation of this shaft. The control system may be arranged to reverse the direction of motion of the escalator, or to control the opening or closing of fireproof doors, emergency exits, &c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2490431A GB388817A (en) | 1931-09-04 | 1931-09-04 | Improvements in or relating to safety or emergency devices for use in connection with escalators and moving stairways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2490431A GB388817A (en) | 1931-09-04 | 1931-09-04 | Improvements in or relating to safety or emergency devices for use in connection with escalators and moving stairways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB388817A true GB388817A (en) | 1933-03-06 |
Family
ID=10219093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2490431A Expired GB388817A (en) | 1931-09-04 | 1931-09-04 | Improvements in or relating to safety or emergency devices for use in connection with escalators and moving stairways |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB388817A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5107975A (en) * | 1989-07-31 | 1992-04-28 | Mitsubishi Denki Kabushiki Kaisha | Control device for passenger conveyor |
| CN102515008A (en) * | 2011-12-13 | 2012-06-27 | 江南嘉捷电梯股份有限公司 | Safety device for detecting ascending reversal of escalator |
| US10479653B2 (en) | 2016-07-29 | 2019-11-19 | Otis Elevator Company | Monitoring system of a passenger conveyor, a passenger conveyor, and a monitoring method thereof |
-
1931
- 1931-09-04 GB GB2490431A patent/GB388817A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5107975A (en) * | 1989-07-31 | 1992-04-28 | Mitsubishi Denki Kabushiki Kaisha | Control device for passenger conveyor |
| CN102515008A (en) * | 2011-12-13 | 2012-06-27 | 江南嘉捷电梯股份有限公司 | Safety device for detecting ascending reversal of escalator |
| CN102515008B (en) * | 2011-12-13 | 2013-11-13 | 江南嘉捷电梯股份有限公司 | Safety device for detecting ascending reversal of escalator |
| US10479653B2 (en) | 2016-07-29 | 2019-11-19 | Otis Elevator Company | Monitoring system of a passenger conveyor, a passenger conveyor, and a monitoring method thereof |
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