Abstract: A car or vehicle washing device utilizing high pressure cleaning solution being discharged through a plurality of nozzles onto the surfaces of the vehicle to be washed with the nozzles being supported on spray booms or bridges that are adjustable so the nozzles will be oriented in optimum spatial relation to the surfaces of the vehicle being washed thereby enabling different sizes of vehicles to be effectively washed by the apparatus of this invention.

Abstract: The bottom hinged stanchion posts of an animal headgate are displaced from a closed position to an open position by an actuator lever after one of a pair of oppositely engaging one-way locking elements is manually released from engagement with a common lock rod connected to one of the gate posts. An opening pressure applied to the posts in the open position releases the engaged locking element to permit the gate to close under a spring bias applied through the actuator lever.

Abstract: An automatic headgate for animals has a rigid, vertically standing frame provided with an opening permitting an animal to pass through the frame. A gate assembly forming a traffic funnel for guiding animals into position for retention by the headgate is mounted on the frame for selective movement between an open position and a closed position in which the gate assembly forms a stanchion restraining an animal from movement. Connected to the gate assembly is a force-applying arrangement disposed for biasing the gate assembly toward its closed position, while a trigger mechanism is connected to the gate assembly for releasably retaining the gate assembly in its open position and releasing the gate assembly to its closed position when pressure lateral of the vertical is applied to the gate assembly from within the opening of the frame as by an animal attempting to pass through the headgate.