Stuart Breary Spence
Engineering at Mdw Xing, Simsbury, CT
License number
Louisiana PE.0024544
Issued Date
Oct 29, 1991
Expiration Date
Mar 31, 2002
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
21 Meadow Xing, Simsbury, CT 06070
Professional information
Elevator Car System With Three Guide Rails
US Patent:
4793441, Dec 27, 1988
Filed:
Oct 20, 1987
Appl. No.:
7/110408
Inventors:
Janis Cilderman - West Simsbury CT
Stuart B. Spence - Simsbury CT
Stuart B. Spence - Simsbury CT
Assignee:
Otis Elevator Company - Farmington CT
International Classification:
B66B 702
US Classification:
187 95
Abstract:
The elevator car is guided in its movement through the hoistway by the two conventional guide rails positioned one on each side of the car, and also by a third guide rail positioned on one side of the car adjacent one of the car doors. The blade of the third guide rail is parallel to the sides of the car, and is engaged by a pair of guide rolls which are mounted on a beam extending out from under the car floor. The third guide rail is mounted in the hoistway on the bracket beams which secure the counterweight guide rails in place. The purpose of the third guide rail is to prevent lateral oscillation of the car as it moves through the hoistway.