Abstract: A model device that looks like a racing car. There are front and rear axles and wheels thereon, a central portion, between the front and rear axles, a hinged nose-like front portion extending forward of the front axle that can be swung open to disclose a cavity, and a rear portion forward of the rear wheels. A radio set is in said central portion and has an on-off and volume control dial on one side and a tuning dial on the other side. The dials are on an upper portion of the central portion thereof. The central portion also has a bottom cover with a detachable portion leading into a bottom cavity. There is a reading light inside the cavity of the nose-like portion and pivotally attached to the nose-like portion. A rearmost portion is detachably secured to the rear portion. There is a digital clock in the rearmost portion which has a hinged cover thereon normally covering the digital clock but able to be swung open.

Abstract: A model automobile-shaped case for desk appliances, comprising a lower half equipped with an automobile-like lower body portion and a plurality of wheels and an upper half having an automobile-like upper body portion having some windowpane-like surfaces. The halves are releasably combinable with each other with the aid of a locking mechanism for holding the two halves together. The lower half is formed with a space opening from the top for accepting some stationery accessories and provided with another space closable by a hood hingedly attached thereto for accepting other stationery accessories. The upper half is provided with closable recesses opening from the bottom for accepting further stationery accessories. A pair of writing instruments are mounted in openings at the front of the lower half to simulate headlights, and they are ejectable by forward movement of the wheels.

Abstract: A thermochromic composition comprising (1) an electron-donating chromogenic material, (2) a 1,2,3-triazole compound, (3) a weakly basic, sparingly soluble azomethine or carboxylic acid primary amine salt, and (4) an alcohol, amide or ester serving as a solvent.

Abstract: This spool for ribbons, tapes, string, and the like comprises a plastic first cylinder, which ribbons or tapes are coiled around. A projecting flange along one edge of the cylinder helps to hold the ribbons or tapes coiled around it. Fitted inside the first cylinder is an adjustable second cylinder made of the same material. This adjustable second cylinder provides a second flange and includes a series of openings, each having a series of steps, any one of which can engage a projection rib on the inner surface of the first cylinder. The width between the two flanges is thereby determined, and the two cylinders may then be secured in the selected position.