Registers – Platform operated – Platform actuated traffic counters
Patent
1979-06-01
1982-03-02
Thesz, Joseph M.
Registers
Platform operated
Platform actuated traffic counters
235 92CC, 235 92PE, 235 92PL, G06M 312
Patent
active
043179894
ABSTRACT:
A series of holes spaced along the length of a web is sensed optically and corresponding pulses are counted in a first counter. Simultaneously a running web length measurement is performed by an encoder wheel, which supplies encoder pulses to a second counter that counts down from a preselected number. When the count in the first counter reaches a selected value, the count in the second counter represents deviation of a measured "board length" from a standard, which is displayed digitally. A display indicates whether the deviation from the standard is inside or outside of a selected range and, if outside, indicates whether the measured web length is shorter or longer than a standard length. Hole simulation pulses are generated to compensate for missing hole pulses, and data readout is inhibited if the final count in the first counter is produced by a hole simulation pulse. A strobe inhibit circuit avoids errors when a strobe light is used to inspect the web.
REFERENCES:
patent: 3264983 (1966-08-01), Lewis et al.
patent: 3371834 (1968-03-01), Willits et al.
patent: 3510036 (1970-05-01), Lewis et al.
patent: 3594552 (1971-07-01), Adamson et al.
patent: 3601587 (1971-08-01), Thiede
patent: 3659081 (1972-04-01), Piccione
patent: 4001552 (1977-01-01), Muller
patent: 4007866 (1977-02-01), Traise
patent: 4081944 (1978-04-01), Sjostrand
Innovative Design, Inc.
Thesz Joseph M.
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