Abstract: A hangable wall calendar has a stack of sheets that are bound at one edge with a spiral binding or other suitable flip binding. The calendar may have a stitch binding, or be cloth-bound or stapled. An elongated generally tubular hanger member for the calendar has a generally D-shaped profile, with a magnetic strip on the back and a slot running along a bottom wall. The slot is narrower than the diameter of the flip binding but large enough to accomodate the stack of sheets. The calendar can be slipped out of the holder and flipped to a different sheet, and then slid back into place. Alternatively, the hanger member can have a generally P-shaped profile.

Abstract: An automatic test and connect electrical power system for use on a brake light circuit of a multiple circuit cord and plug configuration disposed between a tractor and trailer or trailers to sense the presence of a trailer or trailers equipped with either a conventional brake system or an anti-lock brake system and to automatically connect and provide continuous or intermittent power to the electronic control unit and light the brake lights of a trailer equipped with either brake system when the brakes of the tractor are applied lighting the brake lights of the tractor.

Abstract: An anti-lock brake powering system for use on a tractor having a power source and power cord with a connecting device with multiple circuits between the tractor and a trailer with one circuit providing power to the brake lights of a trailer and a switch disposed in the tractor to provide power to the brake lights of a trailer equipped with a conventional brake system when the switch is in one position so that when the brakes of the tractor are applied a pressure sensitive switch disposed in the tractor is activated and lights the brake lights of the tractor and lights the brake lights of the trailer equipped with a conventional brake system and so that when the switch is moved to a second position, continuous electrical power is supplied to the anti-lock brake system of a trailer equipped with an anti-lock brake system and when the brakes of the tractor are applied the pressure sensitive switch disposed in the tractor is activated and lights the brake lights of the tractor and a pressure sensitive switch disp

Abstract: A Brake Travel Indicator for use on a vehicle having a plurality of air brake assemblies secured to the undercarriage of the vehicle and stationary with respect thereto, responsive solely to the linear movement of the push rod clevis of each air brake assembly to provide a visible indication of excess linear movement of the push rod clevis and probable need for brake maintenance as well as an indication of the particular wheel where such maintenance is probably needed and comprising a travel indicator tube which slideably engages with a fixed reference tube to slide in and out of said reference tube to provide visible indication of probable need for brake maintenance and an electrical monitoring system cooperating with the travel indicator tube comprising a continuous electrical circuit connected to a remote display panel with a plurality of multicolored lamps to indicate excess brake travel by one colored lighted lamp, to indicate open circuit or power loss condition by lack of lighted colored lamps, and to