Measuring and testing – Dynamometers – Responsive to force
Patent
1989-06-09
1991-02-05
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to force
G01L 508
Patent
active
049894617
ABSTRACT:
A simply constructed web tension meter is of reduced dimensions capable of preventing an object material from being displaced during a web tension measuring operation. The meter consists of a hollow body provided with an inlet port to which a fluid supply source is connected. An ejection port is opposed to one surface of the object material with a clearance left therebetween. An internal pressure measuring port, and a web tensioning unit are provided with a pressure measuring device joined to the internal pressure measuring port. This meter further includes as necessary another hollow body provided with an upstream port connected to a fluid supply source, and discharge ports opposed to the other surface of the object material with a clearance left therebetween. A web tension controller consists of the same web tension meter as mentioned above in an object material handling apparatus, and a web tension regulator regulates the tension imparted to the moving object material. To the web tension regulator, a processing device in the web tension meter is connected through a control signal transmitter.
REFERENCES:
patent: 2728223 (1955-12-01), Herrman
patent: 2953918 (1960-09-01), Fowler et al.
patent: 3490058 (1970-01-01), Fortier
patent: 3599485 (1971-08-01), Muhlberg
patent: 3779074 (1973-12-01), Breyer
patent: 3999428 (1976-12-01), Zurcher
patent: 4711133 (1987-12-01), Berglund
Hori Sankei
Nishiwaki Nobuhiko
Shiba Noriyuki
Ruehl Charles A.
Tokyo Kikai Seisakusho Ltd.
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