GB173549A - Improvements in an automatic switch which is particularly suitable for electric hoists - Google Patents
Improvements in an automatic switch which is particularly suitable for electric hoistsInfo
- Publication number
- GB173549A GB173549A GB2172520A GB2172520A GB173549A GB 173549 A GB173549 A GB 173549A GB 2172520 A GB2172520 A GB 2172520A GB 2172520 A GB2172520 A GB 2172520A GB 173549 A GB173549 A GB 173549A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- brake
- plate
- electric hoists
- lever
- 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
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
- B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Braking Arrangements (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
173,549. Satterthwaite, A. July 20, 1920. Regulating and controltransmitting gear for winding-apparatus. - Relates to brake and switch operating mechanism for use with electric hoists of the type in which the moving element of the switch is not directly connected to the brake arm. The switch comprises a rectilinearly-moving contact-member 7, 8 enclosed, within a switch-box and operated by an external rod 6 guided by the plate 4 within the supports 5. The plate 4 is resiliently connected with a similar plate 3 which is engaged, without any positive connection thereto, by the brake lever 1 when the lever is raised, thereby raising the switch rod to complete or break as desired the circuit of an automatic or like starter for the motor. When the brake lever is released, the switch member falls under its own weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2172520A GB173549A (en) | 1920-07-20 | 1920-07-20 | Improvements in an automatic switch which is particularly suitable for electric hoists |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2172520A GB173549A (en) | 1920-07-20 | 1920-07-20 | Improvements in an automatic switch which is particularly suitable for electric hoists |
Publications (1)
Publication Number | Publication Date |
---|---|
GB173549A true GB173549A (en) | 1921-12-20 |
Family
ID=10167783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2172520A Expired GB173549A (en) | 1920-07-20 | 1920-07-20 | Improvements in an automatic switch which is particularly suitable for electric hoists |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB173549A (en) |
-
1920
- 1920-07-20 GB GB2172520A patent/GB173549A/en not_active Expired
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