GB1432094A - Stage platform control system - Google Patents
Stage platform control systemInfo
- Publication number
- GB1432094A GB1432094A GB1147474A GB1147474A GB1432094A GB 1432094 A GB1432094 A GB 1432094A GB 1147474 A GB1147474 A GB 1147474A GB 1147474 A GB1147474 A GB 1147474A GB 1432094 A GB1432094 A GB 1432094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control
- drive mechanisms
- segments
- controls
- stage
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
- E04H3/24—Constructional features of stages
- E04H3/26—Revolving stages; Stages able to be lowered
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Multimedia (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
1432094 Stage control system H M BISSELL 14 March 1974 11474/74 Heading A6M A stage platform control system comprises a plurality of stage segments 13, 14, a plurality of drive mechanisms 16, 20, 22, 24 individually associated with corresponding segments to position the segments and control apparatus for actuating the drive mechanisms, which apparatus is capable of actuating all or any of the drive mechanisms concurrently for movement in response to a single set of control signals. Preferably a control unit is individually provided for each separate segment drive mechanism and a plurality of master control units are provided to which the individual segment control units may be selectively coupled in order to provide control of selected individual drive mechanisms in unison by a single operator at a given master control unit. Each segment control unit has circuitry for preselecting a plurality of positions to which the associated segment may be directed when the drive mechanism is actuated and provision is made for varying the speed of elevating or lowering within a given range and with predetermined levels of acceleration and deceleration. The master control units provide for control of movement through preselected incremental distances, thus permitting two or more segments having an initial juxtaposition to be moved through the same incremental distance at the same velocity. In addition the various control units can provide readouts or indications of velocity, position and incremental distance resulting from the operation of the associated drive mechanisms. Duplicate sets of controls may be provided for permitting the preprogramming of one set of controls during the time the other set of controls is in operative use, with means for alternatively selecting one or other of such controls. Alternative manual control may also be provided. Preferably the drive mechanisms consist of hydraulic motors driving screw jack type mechanisms for moving the stage segments and the control is by means of electric circuitry details of which are given in the specification. Suitable brakes and lock mechanisms and overload devices can be provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1147474A GB1432094A (en) | 1974-03-14 | 1974-03-14 | Stage platform control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1147474A GB1432094A (en) | 1974-03-14 | 1974-03-14 | Stage platform control system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1432094A true GB1432094A (en) | 1976-04-14 |
Family
ID=9986929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1147474A Expired GB1432094A (en) | 1974-03-14 | 1974-03-14 | Stage platform control system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1432094A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3127607A1 (en) * | 1981-07-13 | 1983-02-03 | Helmut 7141 Möglingen Ott | Adjustable stage system |
GB2135590A (en) * | 1981-09-03 | 1984-09-05 | Elevator Gmbh | Theatrical stage |
US9114782B2 (en) | 2011-12-01 | 2015-08-25 | Harnischfeger Technologies, Inc. | Leveling system |
CN110725577A (en) * | 2019-11-21 | 2020-01-24 | 甘肃工大舞台技术工程有限公司 | Full hydraulic drive stage |
-
1974
- 1974-03-14 GB GB1147474A patent/GB1432094A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3127607A1 (en) * | 1981-07-13 | 1983-02-03 | Helmut 7141 Möglingen Ott | Adjustable stage system |
GB2135590A (en) * | 1981-09-03 | 1984-09-05 | Elevator Gmbh | Theatrical stage |
FR2542031A1 (en) * | 1981-09-03 | 1984-09-07 | Elevator Gmbh | THEATER SCENE |
US9114782B2 (en) | 2011-12-01 | 2015-08-25 | Harnischfeger Technologies, Inc. | Leveling system |
CN110725577A (en) * | 2019-11-21 | 2020-01-24 | 甘肃工大舞台技术工程有限公司 | Full hydraulic drive stage |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1013078A (en) | Control apparatus for elevators | |
GB1363827A (en) | Rack and pinion elevators | |
CA985807A (en) | Floor selector for an elevator system | |
AU456220B2 (en) | Drive control apparatus for vehicles | |
CA1012266A (en) | Elevator control apparatus | |
CA1033672A (en) | Hydraulic elevator drive system | |
CA933686A (en) | Control apparatus for an elevator car | |
CA1027267A (en) | Elevator control system | |
US3812631A (en) | Stage platform control system | |
GB1432094A (en) | Stage platform control system | |
CA1018588A (en) | Speed control system for motors operated in parallel | |
CA918271A (en) | Speed pattern generator for elevator control system | |
CA1016844A (en) | Multiple lever control console | |
ES423020A1 (en) | Device for controlling a lift or the like | |
GB1176261A (en) | Improvements in or relating to Trapshooting Devices | |
ES412436A1 (en) | Variable speed bi-directional control mechanism | |
GB1476027A (en) | Speed override control for hydraulic motors | |
JPS5026232A (en) | ||
JPS56103012A (en) | Controlling method for movable, travelling type conveyor | |
CA997137A (en) | Hydrostatic leveling apparatus with control operator | |
JPS5322973A (en) | Controlling device fo r vehicle | |
CA953829A (en) | Elevator door control apparatus | |
JPS549817A (en) | Speed controller of dc electric car | |
JPS5410707A (en) | Equal linear velocity controller for rotary recording medium | |
JPS5349748A (en) | Apparatus for controlling elevator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |