Abstract: An end cap in the form of a plate which is connected by an attachment part to the side wall at the open end of a tubular member. The plate part is pivotal relative to the attachment part and therefore can be rotated between a closed position overlying and spanning the open end of the tubular member, and an open position exposing the open end of the tubular member.

Abstract: A power-operated, exterior rear view mirror, normally mounted on each side of large or long vehicles, having motor assemblies within the mirror housing which provide adjustment capabilities in both visual planes, vertical and horizontal. The mirror can be mounted on the vehicle using the existing mounting hardware and can be wired into the existing electrical system of the vehicle. A remote-control switch, located inside the vehicle within easy reach of the driver, controls the adjustment of the mirror, making the task of adjusting the mirrors virtually effortless and providing for safer vehicle operation.

Abstract: A power-adjusted exterior rear-view mirror for large or long vehicles, having a motor and a remote control switch which permits the driver of the vehicle to adjust the mirror while seated in the driver's seat. The mirror can be mounted on the vehicle using existing attachment brackets and can be wired into the existing electrical system of the vehicle. Upon activation of the switch, the mirror rotates from side to side a short distance in a slow and continuous motion until proper adjustment is reached and the switch is turned off. A spring located inside the mirror assembly provides tension to hold the mirror in its adjusted position, and to permit the mirror to give way to a force applied rearwardly on its outside edge and to turn toward the vehicle, then to return the mirror to its original position when the force is removed.

Abstract: A hitch mechanism for towing and maneuvering mobile and modular home sections, in which a frame structure is mounted on the rear of the towing vehicle and a carriage is connected to the frame structure and supports a hitch head for connection to the towed vehicle. A first, second and third power means are provided for moving the hitch head laterally, vertically and longitudinally, the power means preferably being hydraulic cylinders operated by the hydraulic system of the towing vehicle. The frame structure is mounted on the towing vehicle and supports the power means for moving the hitch head and the adjacent end of the mobile and modular home sections laterally, vertically and longitudinally to assist in distributing the load for towing and to place the mobile or modular home section in the desired position at the location.

Abstract: A digital hysteresis circuit which generates delayed, clock-synchronous output pulses from input pulses having a random timing relationship with the clock. Input pulses slewing generally in or out on a repetitive clock defined time base may back up from the direction they are slewing by a predetermined time interval without changing the time position of the clock-synchronous, time-delayed output pulses which they successively generate. The circuit is useful in reducing jitter in the read-out of a digital counter while the counter is operating by preventing a load command pulse occurring at counter transition time from effecting a read-out at that instant, and further effective in reducing jitter in the commanded read out from a digital counter where system uncertainty might otherwise cause shift of successive input commands from their normally predictable time positions.

Abstract: A fast search system for DME generates range gates at the time an analog sweep voltage rises to the magnitude of an analog integrator waveform, the latter having a slope less than that of the sweep voltage and provided with a constant current source input. The current source is selectively inhibited by digital control means responsive to the relative time occurrence of range gates and reply pulses such that the range gate occurs during an instant interrogation period at a point in time corresponding to a predetermined percentage of the time at which appeared the first received reply pulse in a preceding interrogation period.