Electricity: circuit makers and breakers – Special application – Running length – web or strand actuated
Patent
1976-05-04
1977-12-13
Scott, James R.
Electricity: circuit makers and breakers
Special application
Running length, web or strand actuated
340259, B65H 2514
Patent
active
040630510
ABSTRACT:
Apparatus for detecting bumps in a web, such as are caused by double threads or knots in a web of fabric, as the web is advanced past the detecting apparatus, comprises a blade, preferably a plurality of partially overlapping blades, arranged across the web and riding on the web. Each blade comprises one element of a switch the other element of which is constituted of a contact member arranged above the blade a distance from the blade greater than the height of the bumps to be detected. The blade is sufficiently light and so mounted that when it is struck by a bump on the web, it bounces out of engagement with the web and contacts the contact member thus closing the switch which is in an electrical circuit. A deactuatable means for moving the web is operatively associated with the switch whereby closing of the switch deactuates said web moving means. A marking means for marking the web when the switch is closed may also be operatively associated with the switch. Similarly, an audible signal may be operatively associated with the switch.
REFERENCES:
patent: 869324 (1907-10-01), Obert
patent: 1139839 (1915-05-01), Bottinelli
patent: 2444170 (1948-06-01), Sabel
patent: 3037381 (1962-06-01), Grant et al.
patent: 3151482 (1964-10-01), Forrester et al.
patent: 3301974 (1967-01-01), Hancock
patent: 3371331 (1968-02-01), Buckholz
patent: 3500437 (1970-03-01), Foerster
patent: 3553668 (1971-01-01), Urmenyi
patent: 3842668 (1974-10-01), Lippke
Gundlach Robert W.
Hudson Frederick W.
Lerner Henry R.
Scott James R.
Standard Products Corporation
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