GB488219A - Improvements in and relating to controllers for electric motor equipments - Google Patents
Improvements in and relating to controllers for electric motor equipmentsInfo
- Publication number
- GB488219A GB488219A GB24237A GB24237A GB488219A GB 488219 A GB488219 A GB 488219A GB 24237 A GB24237 A GB 24237A GB 24237 A GB24237 A GB 24237A GB 488219 A GB488219 A GB 488219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- controller
- abutment
- disc
- lever
- operated
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Control Devices (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
488,219. Actuating controllers. GRAY, W. T., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Jan. 4, 1937, No. 242. [Class 38 (iii)] A controller of the kind in which the operator performs an additional control operation before initiating acceleration in order to obtain acceleration to the higher speed or speeds, comprises an abutment 23 coupled with the moving element of the controller and co-operating with an abutment 18 biassed into the path of movement of the member 23 and preventing movement of the controller to its final position, a locking member 14 coupled to the moving element of the controller having a surface interrupted at 15 which co-operates with an auxiliary control member to permit operation of the abutment 18 into and out of the path of movement of the abutment 23 by the biassing means and the auxiliary control member respectively, when the controller occupies its off position. The main controller is operated by a handle 1 and the auxiliary control member comprises a thumb lever 5 coupled to an auxiliary shaft 6, the shaft being biassed by a spring 9 acting in compression and torsion. With the thumb lever in the position shown, operation of the controller is limited to its third notch by engagement of the curved face of the abutment 23 with the abutment 13 as shown in Fig. 5. Since operation of the controller moves the recess 15 of the disc 14 out of line with the abutment 18 depression of the lever 5 is prevented. While the controller handle 1 is in its off position the lever 5 may be depressed to operate the abutment 18 to the underside of the disc 14 so that the controller may be operated, the disc 14 retaining the abutment 18 in its depressed position, until a further abutment 24 carried on the underside of the disc 14 engages the abutment 18. Thus the controller may be operated to its fourth notch. While the controller is in its off position the lever 5 may be depressed and rotated as shown in Fig. 6, so that the abutment 18 is situated below the disc 14, but with a surface 16 engaging the edge of the disc 14 when the controller is rotated. In this way the abutment 18 is retained in a position out of the path of the abutments 23, 24, and the controller may be operated to its final notch. The lever 5 and the abutment 18 are returned to the normal position shown from either of its actuated positions when the controller is in its off position by the spring 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24237A GB488219A (en) | 1937-01-04 | 1937-01-04 | Improvements in and relating to controllers for electric motor equipments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24237A GB488219A (en) | 1937-01-04 | 1937-01-04 | Improvements in and relating to controllers for electric motor equipments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB488219A true GB488219A (en) | 1938-07-04 |
Family
ID=9700920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24237A Expired GB488219A (en) | 1937-01-04 | 1937-01-04 | Improvements in and relating to controllers for electric motor equipments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB488219A (en) |
-
1937
- 1937-01-04 GB GB24237A patent/GB488219A/en not_active Expired
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