Abstract: A tandem-axle walking beam suspension is disclosed which uses bushings of novel design in the bores at opposite ends of the walking beams. The cores of the bushings have projecting ends each of which fits between the bifurcated end of one of the pair of axle bracket arms which straddle one end of each walking beam. A removable fastener, such as a nut and bolt is used to connect each projecting bushing core end and its associated bifurcated axle bracket arm. The resulting new system of connecting the equalizer or walking beams to the axle brackets provides easier serviceability of the beam end connections during repair or replacement and by using shims in the connections provides a convenient means of suspension alignment.

Abstract: Meter box apparatus for containing and securing an underground utility meter, including a cylindrical meter box for use as a meter pit, the meter box being fabricated in two complementary sections of substantially semicircular cross section with diametrically extending flanges, the flanges being held together by C-clamps for assembling the two sections, a meter box cover including a cylindrical body, the cylindrical body being insertable into the cylindrical meter box, both the box and the cover having complementary threads molded into the walls for adjusting the height of the apparatus, and an apertured bar adjustably positionable with respect to the height of the meter box and secured between said two sections for securing the meter.

Abstract: Electronic calculators are manufactured by affixing conductors on an insulated substrate, by attaching tape-mounted semiconductor logic and display devices to selected conductors and by interconnecting the conductors with a keyboard. By using the method disclosed, the number of holes provided in the insulated substrate can be reduced or the use of such holes eliminated. Various embodiments of methods of manufacturing calculators are disclosed, along with the structure of such calculators.

Abstract: Electronic calculators are manufactured by affixing conductors on an insulated substrate, by attaching a semiconductor logic and a tape-mounted display device to selected conductors and by interconnecting the conductors with a keyboard. The tape-mounted display device is provided with a plurality of leads carried by the tape different preselected distances from an axis of the display device. By using the method disclosed, the number of holes provided in the insulated substrate can be reduced or the use of such holes eliminated.

Abstract: Electronic calculators are manufactured by use of a flexible insulative carrier, the carrier being a tape-like-plastic substrate a single length of which is sufficient to manufacture a plurality of the electronic calculators, wherein conductor patterns are formed on the carrier, a keyboard is formed on the carrier using selected portions of the aforementioned conductors as keyboard switch contacts and semiconductor devices are interconnected with selected conductors formed on the carrier.