Measuring and testing – Dynamometers – Responsive to force
Patent
1986-06-03
1987-09-08
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to force
G01L 510
Patent
active
046915796
ABSTRACT:
An improved transducer of a cantilevered beam type wherein a force to be measured is applied perpendicularly to the end of the beam through the joint and the improved joint comprises a self-aligning first roller bearing having an axially aligned center bore and a cylindrical outer surface. A cylindrical inner member is carried by the end of the beam while a cylindrical outer member is provided having cylindrical inner and outer surfaces. The cylindrical inner surface is of a diameter to be a sliding fit about the outer surface of the first roller bearing and has parallel, spaced, inward facing ridges thereon of a spacing greater than the width of the first roller bearing. A biasing device urges the first roller bearing toward a neutral position. A second roller bearing having a center bore with a radius larger than the radius of the cylindrical outer surface of the cylindrical outer member is disposed concentrically thereabout in alignment with the first roller bearing. There is a device for non-movably supporting the second roller bearing with respect to the cantilevered beam. The force receiving device comprises a cylindrical bushing for receiving a shaft to be supported by the first roller bearing.
REFERENCES:
patent: 3763701 (1973-10-01), Wright et al.
patent: 4326424 (1982-04-01), Koenig
Dover Flexo Electronics, Pub. 117-CPO 485 R-O, "Web Tension Controls Offer Advanced Technology".
Dover Flexo Electronics, Pub. 110 CPC-R1, "Tension Transducers for Non-Rotating Idler Roll Shaft".
Comptrol Incorporated Bulletin A-77, reprinted from Power Transmission Design magazine, Jul., 1984 issue, copyright 1984, by Penton/IPC, Inc.
FAG KraftmeBsystem MGZ, Publ. Nr. 55 123/2DA, pp. 3 & 4 (FAG Kugelfischer Georg Schafer & Co.).
Cleveland-Kidder Engineering data sheet DS-TRS-1182 (Cleveland Machine Controls, Inc.)-"Tension Transducers for Measurement and Control of Tension in Moving Webs".
Designer's Notebook, 1983-1984 Edition (Magnetic Power Systems, Inc., Subsidiary of WJ Industries), pp. 46 & 48.
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