Elevator system
AssigneeWestinghouse Electric Corp.
InventorsGeorge A. Kappenhagen, Niles J. Martin, John E. Pace, Robert A. Sette, Charles E. Randall, Leigh F. Jackson, Gurdip S. Bains
Life of this patent
Estimating the term…
Abstract
A hydraulic elevator system which utilizes a single hydraulic jack having a cylinder fixed below an elevator car, and a plunger. The elevator car is supported on the end of the plunger. The hydraulic jack extends upwardly and into the elevator car, reducing the space required below the car by the amount of the penetration of the hydraulic jack. The hydraulic jack is disposed adjacent to the front portion of the hatchway, enabling it to occupy an enclosed, concealed space in the elevator car, between its entranceway and its operational controls.
Claims8
An elevator system, comprising:
- a building having vertically spaced floors and a hatchway,
- an elevator car in said hatchway, said elevator car including a platform, a cab on said platform having an entranceway and side wall and top portions, and structural support means for said cab platform,
- said support means including a car frame having a lower beam member below the platform, an upper beam member above the cab, and a hollow elongated member which extends between and is fixed to at least one of said lower and upper beam members, said elongated member having upper and lower ends, with its upper end being at least partially closed,
- and a single hydraulic jack at the bottom of said hatchway, within the vertical projection of said elevator car, said hydraulic jack including a cylinder and at least one plunger, with said cylinder being secured to said building, and with said at least one plunger having an end portion which supports said elevator car in said hatchway,
- said hydraulic jack entering the lower end of said elongated member, with the end of its at least one plunger in contact with the at least partially closed end of said elongated member,
- said hydraulic jack being operable to lift and lower said elevator car in a vertical travel path to serve the floors of said building,
- at least a portion of said hydraulic jack extending upwardly into said elevator car as said elevator car travels between the limits of its vertical travel path, reducing the space required below said elevator car to accommodate said hydraulic jack.
An elevator system, comprising:
- a building having vertically spaced floors and a hatchway,
- an elevator car in said hatchway, said elevator car including a platform, a cab on said platform having an entranceway and side wall and top portions, and structural support means for said cab and platform,
- said elevator car including a front portion with which the entranceway to the cab is associated, with the support means including a car frame disposed at said front portion, said car frame including top and bottom beam members having vertically aligned openings therein, a hollow tunnel structure disposed through the openings in the top and bottom beam members, and fixed to both of them, said tunnel structure having upper and lower ends, with its upper end being at least partially closed, and a single hydraulic jack at the bottom of said hatchway, within the vertical projection of said elevator car, said hydraulic jack including a cylinder and at least one plunger, with said cylinder being secured to said building,
- said hydraulic jack entering the lower end of said tunnel structure, with the end of the at least one plunger in contact with the at least partially closed upper end of said tunnel structure to support said elevator car in said hatchway,
- said hydraulic jack being operable to lift and lower said elevator car in a vertical travel path to serve the floors of said building,
- at least a portion of said hydraulic jack extending upwardly into said elevator car as said elevator car travels between the limits of its vertical travel path, reducing the space required below said elevator car to accommodate said hydraulic jack.
Dependencies are inferred from the claim text.