B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
342/21
B65H 35/00 (2006.01) B65H 25/00 (1980.01) G06F 15/46 (1980.01)
Patent
CA 1158342
ABSTRACT OF THE DISCLOSURE An area-measuring device comprises a length-meter, a breakage sensor, and a strip cutter, all having outputs connected to inputs of an inhibit circuit, a frequency divider, and an out- put counter. The cutter has one input being connected to the length meter output, and another connected to the breakage sen- sor output. A two-position switch has one position connected to the inhibit unit output, and a second position connected to an AND gate output, having one input connected to the output of an overflow blocking unit. The other AND gate input connected to a reference frequency generator output and a count input of the controlled frequency divider having control inputs connected to intermediate memory counter outputs and to overflow blocking units. The intermediate memory count input is connected to an input of a two-position switch; its clearing input is connected to a common clearing line. A reference frequency generator output is connected to count inputs of two control frequency dividers. Connected through NAND gates to the control inputs of one controlled frequency divider is a correction input unit. The NAND gates have common inputs connected to the second position of the second switch having a grounded switch arm. Outputs of the two frequency dividers are connected to a coincidence circuit through a time interval generator with control inputs connected to a width-setting unit. The coincidence circuit output is connect- ed to the output counter wherein the clearing input is connected to the time interval generator clearing output. The strip ma- terial area measuring device features a higher measurement ac- curacy than the prior art apparatus and allows measuring area of practically all the different-size rolls, and controlling the measurement accuracy of the device during operation.
363181
Kharkovsky Politekhnichesky Institut Imeni V.i. Lenina
Marks & Clerk
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