Self aligning carrier head and truck assembly
OwnerJohn F. Millerinventor
Life of this patent
Estimating the term…
Abstract
A carrier head which rides a rail is provided such that when connected by a load carrying member to a second carrier head on a second rail lateral movement is facilitated between the carriers to adjust for differences in distance between the rails. The carrier head has a surface for bearing the load while a pin positioned above the load supporting surface passes through a load bearing connector which permits movement of the load longitudinally.
Claims9
A trolley assembly riding a pair of rails comprising in combination:
- a first carrier head with a first wheel for riding the first rail of said pair, the first carrier head joined to a load bearing connector upon which a load may be carried;
- a second carrier head with a second wheel riding on the second rail of said pair operably joined to the load bearing connector by a non-movable restraining means for restraining longitudinal movement between the load bearing connector and the second carrier head, and said restraining means passing through a stationary recess in the load bearing connector and having a free length greater than the length of the recess to allow unresisted lateral movement relative the carrier head of the load bearing connector along the restraining means;
- and
- said second carrier head further having separate from the restraining means a connecting support surface on which a lower surface of the load bearing connector rests in continual surface to surface contact.
A carrier head for riding along a rail and for operably joining to a second carrier head by a load bearing connector with a recess comprising in combination:
- wheel means for riding said rail;
- a carrier body to which said wheel means is rotatably joined, said carrier body comprising non-moving restraining means for restraining lateral movement between the connector and the body, said restraining means of a length greater than the recess in the load bearing connector and allowing unresisted lateral movement of the carrier body relative the connector by movement of the connector along the restraining means;
- and
- said carrier body further having separate from the restraining means a connector support surface on which a lower surface of the load bearing connector rests in continual surface to surface contact when the restraining means pass through the recess.
Dependencies are inferred from the claim text.