Counterweight assembly
OwnerCharles A. Woodinventor
Life of this patent
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Abstract
An adjustable counterweight assembly for exerting a torque on a rotatable tubular member. A weight carriage is mounted with a frame of the counterweight for radial movement with respect to the tubular member, and an adjusting assembly moves the weight carriage radially to vary the torque exerted on the tubular member. To mount the counterweight with the tubular member, a plurality of plates, each of which has a substantially regular arcuate surface, are affixed to the counterweight frame to engage the uniform outer surface of the tubular member. A mounting assembly detachably secures these arcuate surfaces to the tubular member.
Claims10
An adjustable counterweight assembly for use with a rotatable tubular member, comprising:
- a frame;
- engaging means mounted on said frame and having a substantially regular arcuate surface for engaging the outer surface of the tubular member;
- clamping means detachably mounted to said frame and extendable around the tubular member for detachably securing said engaging means to the outer surface of tubular member;
- weight carriage means including a weight receptacle mounted on said frame for radial movement with respect to the tubular member;
- and
- adjusting means mounted on said frame for moving said weight carriage radially with respect to the tubular member.
Dependencies are inferred from the claim text.