High tension detectors for multi yarn machinery

Details High tension detectors for multi yarn machinery High tension detectors for multi yarn machinery

1976-08-03

1978-03-14

Hunter, H. Hampton

Sewing

Special machines

Buttonhole

112273, 112278, 200 6118, D05C 1518

Patent

active

040785050

ABSTRACT:
A tension detector which senses excessive tension deviation in the yarn fed to a tufting machine to operate a loaded plunger. There is a separate plunger for each yarn end with each plunger operating to complete an electric circuit when the plunger is acted upon by a high tension deviation yarn. The electrical circuit consists of a bank of identical resistors connected in series with a known voltage across them to create a linear voltage divider, a switch corresponding to each resistor, each switch being mounted after its resistor in parallel with the remaining resistors and closed by the actuation of a respective one of the plungers. The voltage indicator can be calibrated to display the particular yarn or needle number directly thereon so that the operator may identify the particular troublesome yarn.

REFERENCES:
patent: 3221682 (1965-12-01), Burnell
patent: 3221683 (1965-12-01), Abelsma
patent: 3764773 (1973-10-01), Merkle
patent: 3783811 (1974-01-01), Schmedding
patent: 3838235 (1974-09-01), St. Germain
patent: 3994245 (1976-11-01), Smith

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