Elevator Mechanism (Patent No: 191770)

Inventor: Armstrong, Wesley

Location: Hanna

Comments: N/A

Description: Wesley Armstrong. Hanna, Alberta, Canada. 29th July, 1919; 6 years. Filed 17th February, 1919. Receipt No. 305,496.

Claim.—1. In a device as set forth, the combination with an elevator shaft equipped with doors at each landing, of a car movable in said shaft, electrical locking means for the doors, electrical means for locking the car operating lever, contact plates carried in the shaft, means carried by the car for engagement with the contact plates, means for supplying current to the two aforesaid locking means and to the contact places and car carried engaging means, whereby a door may be unlocked and the car locked in position when the car is opposite a particular landing, and means connected with the doors whereby the means on the car may be disengaged from the contact plates.

2. In a device as set forth, the combination with an elevator shaft equipped with doors at each landing, of a car movable in said shaft, electrical locking means for the doors, electrical means for locking the car operating lever, contact plates carried in the shaft, an arm carried by the car frictionally engaging but pivotally connected with the latter, a roller carried by said arm, a contact member also carried by said arm and designed to engage between the contact plates, means to supply current to the aforesaid locking means and to the contact plates and contact member, whereby a door may be unlocked and the car locked in a position when the latter is opposite a particular landing, means conjoined with the doors whereby the arm on the car may be moved on its pivotal connection, and guides carried in the shaft for restoring the arm to the position it occupied previous to being operated on by the last said means.

3. In a device as set forth, the combination with an elevator shaft equipped with doors at each landing, of a car movable in said shaft, electrical locking means for the doors, electrical means for locking the car operating lever, contact plates carried in the shaft, an arm carried by the car frictionally engaging but pivotally connected with the latter, a roller carried by said arm a contact member also carried by said arm and designed to engage between the contact plates, means for supplying current to the aforesaid locking means and to the contact plates and contact member, whereby a door may be unlocked and the car operating lever locked in a position when the latter is opposite a particular landing, tripping members pivoted on top of the door frames, pivotally mounted levers carried by the doors, the upper ends of the levers being designed to engage the tripping members to cause the lower ends of said levers to engage the said roller and thus move the arm on its pivotal connection and disengage the contact arm from the contact plates, and guides carried in the shaft and designed to engage the roller to restore the said arm to its normal position.

Claims allowed, 3.