Apparatus for indicating the output of a machine

Details Apparatus for indicating the output of a machine Apparatus for indicating the output of a machine

1975-05-14

1977-07-26

Rolinec, Rudolph V.

Electricity: measuring and testing

Electrical speed measuring

Including 'event' sensing means

235 92PD, 235 92A, G01P 366

Patent

active

040386171

ABSTRACT:
A sewing machine incorporates a ferrous member connected to a rotating part of the machine and a magnetic perception head disposed such that during operation of the machine the member moves towards and away from the head. Pulses produced by the head are fed to a counter which gives the total number of pulses and thus an indication of the total operating time of the machine and of the number of stitches made.

REFERENCES:
patent: 3467821 (1969-09-01), Arp
patent: 3548165 (1970-12-01), Linnenkamp
patent: 3729620 (1973-04-01), Jones
patent: 3750603 (1973-08-01), Martin
patent: 3793509 (1974-02-01), Isnard

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