Abstract:
Radioactivity exposure amount of workcraftmen is obtained through simulation by using an operation processor when the workcraftmen carry out work operation within an area under controlled radioactivity. The movement of the workcraftmen carrying out work operation in the area under controlled radioactivity is simulated by making use of layout graphic data relating to the area. The radioactivity exposure amount of the workcraftmen is calculated in response to the simulated movement of the workcraftmen. The operation procedures of the target work operation for radioactivity exposure amount calculation is outputted from the operation processor, when the calculated radioactivity exposure amount satisfies a predetermined value.
Abstract:
A drive and control circuit for laser diodes includes: a first switching element connected in series to a laser diode connected to a constant-current source for actuating the laser diode when a binary drive signal is at one level thereof; an impedance element connected in parallel to the series circuit of the laser diode and the first switching element, the impedance element being connected to receive the constant-current source together with the laser diode and having impedance characteristics substantially equal to those of the laser diode and the constant-current source; an integrator circuit for integrating the data at the one level; an impedance control circuit for variably controlling the impedance of the impedance element in response to the integrator circuit; and a second switching element connected in series to the impedance element for actuating the impedance element when the drive signal is at the other level. Furthermore, an alternative embodiment of the drive and control circuit includes the combination of a comparator, an integrator circuit, a constant-current circuit, a counter and a timer.
Abstract:
A power transmission belt structure including a flexible neutral belt portion, a plurality of blocks secured to the flexible belt portion seriatim longitudinally thereof, and heat conducting structure disposed between the flexible belt and blocks for conducting away from the flexible belt heat generated as a result of power transmission operation of the belt structure. A number of different embodiments utilizing the heat conducting structure are disclosed. In certain of the embodiments, the heat conducting structure extends partially about the blocks and, in certain of the embodiments, the heat conducting structure extends fully thereabout. In certain embodiments, the reduced midportion of the block is provided with the heat conducting structure recessed therein. In one form, a protective outer coating is provided on the heat conducting structure.
Abstract:
An automatic white balance adjusting circuit comprises a color temperature detecting circuit for producing a detection signal having a voltage in correspondence with a color temperature of an incoming light to an image pickup device, a reference voltage signal generating circuit for generating an A.C. reference voltage signal, a comparing circuit for obtaining a discrimination signal by comparing the detection signal with the reference voltage signal, a plurality of voltage sources for applying different voltages in correspondence with different color temperatures, a selecting circuit for selecting and obtaining voltages from the voltage sources depending on the output discrimination signal of the comparing circuit, and an integrating circuit for integrating output voltage signals of the selecting circuit. Output voltage signals of the integrating circuit are applied to corresponding amplifiers to variably control amplifications thereof so that a white balance of a color video signal produced from an encoder is automatically adjusted.
Abstract:
A method of controlling the speed of the output of a V-belt drive having an output driven pulley driven by a V-belt from an input driver pulley wherein the rotational speed of the driver pulley is determined, the ratio of the effective belt drive diameters of the driver and driven pulleys are determined and the effective belt to drive diameter of at least one of the pulleys is adjusted to provide a preselected speed of the drive output.
Abstract:
A spring-locked variable speed pulley, such as may be used as a drive device for automotive, motorcycle or industrial applications, wherein the engagement of a spring with the side of a stopper and movable pulley piece are improved in such a manner that the pulley can be used in a wide variety of applications. The movable pulley piece is mounted on a shaft adjacent to a stationary pulley piece with the movable pulley being movable axially as well as being rotatable. A stopper and a spring are interposed between the movable and fixed pulley pieces. Pins protrude from the side of the confronting surfaces of the movable pulley piece and the stopper, which pins engage in holes formed in the ends of the spring, the holes being disposed diametrically opposite one another with respect to the center longitudinal axis of the spring.
Abstract:
A method and apparatus for forming belt sleeves having grooves provided in either or both of the inner and outer surfaces thereof. The manufacture includes the provision of a preform laminate on an inner mold and the forcible urging of a constrictable outer mold radially against the laminate at elevated temperatures so as to effect curing of the rubber of the laminate in accurate conformity to the grooved configuration of the inner and outer molds. The entire assembly is carried on a central support post. Pressure plates are provided for urging the constrictable outer mold radially inwardly as the result of threaded advance of nuts on the central post. The grooves in the mold surfaces may selectively be arranged to extend parallel or circumferentially of the central axis of the post as desired to form either longitudinally or transversely extending ribs, grooves, etc., in the formed sleeve belt.
Abstract:
An apparatus for testing a power transmission belt is disclosed, wherein a test belt is mounted between a pair ot pulleys secured to first ends, respectively, of a pair of shafts disposed in parallel and a drive belt is mounted, through idlers, between another pair of pulleys respectively secured to the other ends of the shafts. One of the shafts is supported on a movable plate adapted to be moved in conformity with the length of the test belt. Pitch diameters of these pulleys are determined to exert torque on the shafts to thereby apply tension to the belts. The idlers are disposed so as to avoid displacement of the drive belt regardless of the length of the test belt, and one of the idlers is movably disposed to further control tension of the drive belt.
Abstract:
An apparatus for testing power transmission belts is disclosed, wherein at least one test belt is mounted between at least one drive and driven motors each having corresponding numbers of drive and driven pulleys, respectively. The pitch diameter of the drive pulley is larger than that of the driven pulley to generate electric power in the driven motor. The test belt is subject to various loads due to torque variation of both drive and driven motors or either one of the motors by connecting a transformer to both or either one of the motors.
Abstract:
A novel non-silver salt type photosensitive composition which comprises (A) N,N'-diphenyl-p-phenylenediamine as a color developing agent and tetramethylthiuram disulfide which unexpectedly functions rather as another color developing agent than as a storage stabilizer, (B) an organic halide compound as a photoactivator, (C) a salicylic acid derivative as a storage stabilizer for an unexposed photosensitive material, (D) thiourea which functions rather as an agent capable of functioning as both an anti-foggant at and after image formation and a contrasting agent than as a storage stabilizer, and (E) at least one member selected from the group consisting of (i) 2-methylindole, (ii) 2-mercaptothiazoline and (iii) p-diethylaminobenzaldehyde as a color tone adjusting agent. A photosensitive material or film obtained from the present photosensitive composition has an excellent storage stability in the unexposed state, and can give, only by dry process, a blackish brown image having a high photographic density and a high contrast, with fog occurrence reduced.