Registers – Platform operated – Platform actuated traffic counters
Patent
1976-08-19
1977-12-06
Yasich, Daniel M.
Registers
Platform operated
Platform actuated traffic counters
235 92FL, 235 92R, 73321, 73313, G06M 314, G01F 2310
Patent
active
040619010
ABSTRACT:
A small, permanent magnet is eccentrically supported on a shaft that is rotated by some means, such as gears, in response to linear change in some quantity, e.g. accumulated water from rainfall. A float on the surface of the water in a receptacle transmits the motion to the gears. At least three sensors, responsive to magnetic flux, are mounted in a circle concentric about the shaft so that the rotating magnet will produce a response as it passes each sensor. Each sensor is connected to an input terminal of two of a plurality of flip-flops (one for each sensor), so that the resultant stored bit of information in each flip-flop is determined by two different sensors. This stored bit comprises a digit of a three digit binary code that is changed whenever a sensor responds. It is available at the output terminal of each flip-flop, which is connected to an AND-OR inverter containing at least three two-input AND gates and an OR gate. Each flip-flop output is connected to one input terminal of two different AND gates, so that the output of each AND gate is determined by the stored bit of two different flip-flops. Each AND gate simplifies the three-digit, binary code that is supplied to the OR gate, to which outputs of the AND gates are connected. The sequence of response of the sensors (or direction of shaft rotation) is determined according to the combination of signals received from the AND gates. The OR gate, which is connected to a counting and memory device, produces a positive or negative signal that causes the counting device to count positively or negatively. At the same time, the signal pulse from the AND-OR inverter is fed to the counting device via clock means, and, optionally, wave-shaping means. This counting and memory device is in turn connected to radio means that automatically transmits any signal that represents an informational change in the previous broadcast.
REFERENCES:
patent: 3087030 (1963-04-01), Shebanow
patent: 3145292 (1964-08-01), Schwaninger
patent: 3182457 (1965-05-01), Sato et al.
patent: 3258554 (1966-06-01), Cloup
patent: 3459042 (1969-08-01), Brown
patent: 3586836 (1971-06-01), Paul
patent: 3594669 (1971-07-01), Yamane et al.
patent: 3969941 (1976-07-01), Rapp
Saunders Jim G.
Stucki Alfred B.
Marcus Stanley A.
McCullough Edward E.
Thiokol Corporation
Yasich Daniel M.
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