Swing stop for rotary crane

Details Swing stop for rotary crane Swing stop for rotary crane

2006-11-06

2009-12-22

Le, Mark T (Department: 3617)

Traversing hoists

Boom position lock

C212S253000, C104S002000

Reexamination Certificate

active

07635063

ABSTRACT:
An improvement for a railroad tie crane utilizes a movable stop mounted on an elongated member between a pair of cushioned terminals to reduce impact stress on equipment and personnel in situations where the tie crane must be prevented from fouling an adjacent track. The movable stop is selectively engaged by a retractable bar mounted on the rotatable platform carrying the crane boom.

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