Abstract: In a band compression apparatus, an input signal is separated into high- and low-frequency components H and L by an LPF and an adder. The component H is in-frame-averaged by an in-frame average circuit. The component L is output as a signal S.sub.3 having a large energy via a field delay circuit and a switch circuit. An in-frame difference of the low-frequency component L is obtained by a field delay circuit and an adder. This in-frame differential signal S.sub.2 is added to an in-frame average signal S.sub.1 by an adder. A signal S.sub.4 having a small energy is obtained by this addition. In a band restoration apparatus the signals S.sub.3 and S.sub.4 are separated into signals of two fields by an adder and a switch circuit. A signal S.sub.5 consisting of the components L and H is obtained in one field. A signal S.sub.2 consisting of only the component L is obtained in the other field. The signal S.sub.5 is output via a switch circuit. The signal S.sub.2 is added to the signal S.sub.
Abstract: Case clocks, especially of the so-called tall-case or grandfather type, equipped with at least one suspended elongated weight, preferably contained within a weight shell or casing, are provided with at least one narrow annular memorializing band surrounding the weight or shell and retained thereon, the annular band carrying on an exposed surface indicia commemorating a particular event to be memorialized. Preferably, the memorializing band slidably encircles the weight or shell, the latter including at its lower end a radially projecting detent, of bead shape for example, to limit the downward movement of the band. A plurality of such bands can be stacked vertically end-to-end on each weight or shell. The weight and bands are visually exposed through doors or other openings or transparent panels in the clock case.
Abstract: Apparatus is provided for moving an object in an oscillatory manner and in an arcuate path through the use of a fluid. The apparatus basically includes a hollow member or elongate tube having a curved portion and means for supplying fluid in pulses or at an increasing rate and then at a decreasing rate of flow to the tube on one side of the curved portion. The change in velocity of the fluid and the rate of change cause the movement of the tube due to inertia and, to a lesser extent, friction of the moving fluid within the tube. The density of the fluid also has a substantial effect on the movement of the tube, although gas alone will cause movement. The object to be moved is engagable by the tube and is usually supported by it. The object moved by the tube and fluid can take many forms, including signs, ornaments, figures, chimes, and clock dials.