Overhead Crane Stop does not slide on impact.

Press Release Summary:

Non-Slide Crane Stop is used where conventional crane stop attaching plates interfere with rail hook bolts. Dogs clamp upright wedge to rail and barely drop beneath head of rail for maximum clearance. Upright wedge is available in either straight-edged style for bumper contact, or in curved form to accept particular crane wheel diameter. Crane Stop is suited for cranes traveling at normal operating speed and should not be used at end of crane runs.

Original Press Release:

Non-Slide Overhead Crane Stops

Aldon Company introduces a new style of crane stop for use where conventional crane stop attaching plates interfere with rail hook bolts. The new Non-Slide stops feature dogs which clamp the upright wedge to the rail. The dogs barely drop beneath the head of the rail, for maximum clearance. On impact, the new stops should not slide at all or minimally. The upright wedge is available in either straight-edged style for bumper contact, as shown here, or available in curved form to accept a particular crane wheel diameter. These new stops are designed for cranes travelling at normal operating speed. They should not be used at the end of crane runs, but used instead to separate one crane from another.