|6279484||Actuating mechanism for a transit vehicle guide beam switch|
A mechanism is disclosed for actuating a switch guide beam swinging laterally between two or more fixed guide beam ends, in order to make a route selection for a beam guided vehicle. The moving guide beam pivots distantly of the primary fixed guide beam e...
|4599032||Rolling base for truck cranes|
A rolling base assembly for truck cranes which allows movement of the truck crane under load-carrying conditions. The device comprises a fixed chain installed along the centerline of a flatbed trailer. A rolling base, having outboard roller housing assemb...
|3937151||Mineral mining equipment|
A track member for a mineral mining machine which hauls itself along a working face by engaging a flexible round link chain has pockets for fixedly engaging those links of the chain lying in a first plane and a continuous groove interconnecting the pocket...