Truck for loading oven compartments

Claim 1

The combination with a compartment having a front wall with an opening providing access to the interior for receiving a dolly, a mobile truck movable to a position confronting the front opening of the compartment, said truck comprising a shelf mounted thereon for adjustment to a height corresponding to the compartment such that when the truck is moved to said confronting position a dolly mounted on the shelf may be rolled therefrom into the compartment, docking means on the truck interengageable with the opening in the compartment, and locking means for locking the truck to the compartment while transferring the dolly from the shelf on the truck to the compartment and vice versa characterized in that said locking means comprises a rigid rod rotatably supported at the underside of the shelf and extending from the front to the back with a hook at the front end for engagement with a slot in the wall and a handle at the rear end for effecting manipulation of the locking means, said rod having an eccentric portion intermediate its ends, a latch plate situated on the eccentric portion perpendicular to the axis thereof with a portion extending upwardly through the shelf, said upwardly extending portion containing an opening, a lug on the underside of the dolly at a level to enter the aperture when the latch plate is elevated and to be locked to the latch plate when the latteR is lowered, said eccentric portion of the rod being rotatable by manipulation of the handle to effect elevation and lowering of the latch plate, the disposition of the hook with respect to the eccentric portion of the rod being such that when the hook is engaged with the slot in the wall the latch plate is elevated and when the hook is disengaged from the slot in the wall the latch plate is lowered.