Chucks or sockets – Radially reciprocating jaws – Wedge actuated
Patent
1978-12-22
1980-12-16
Briggs, William R.
Chucks or sockets
Radially reciprocating jaws
Wedge actuated
279123, B23B 3110
Patent
active
042392462
ABSTRACT:
A chuck assembly for rigidly gripping an elongated workpiece, and particularly concrete reinforcing bars, is disclosed. The chuck assembly is designed for use in a machine tool, such as a thread mill, to enable threading of the ends of reinforcing bars. The chuck assembly includes jaws that are formed to engage the bar over a substantial length, preferably at least four bar diameters, and that are formed to provide a line contact engagement of the bar so as to dig into the bar ribs and provide high resistance to torsional forces. The jaw members are preferably tapered and actuated by a pair of complimentary wedge members mounted in sliding engagement with substantially the entire length of the jaw members. The chuck assembly is mounted in a two piece cast housing that is bolted together and formed with openings to permit debris to gravitate from the movable members of the assembly.
REFERENCES:
patent: 2676381 (1954-04-01), Holmes
patent: 3100382 (1963-08-01), Muller
patent: 3253332 (1966-05-01), Howlett
patent: 3415552 (1968-12-01), Howlett
patent: 3434337 (1969-03-01), Goeke
patent: 3456956 (1969-07-01), Herbkersman
patent: 3792869 (1974-02-01), Braun
patent: 3850535 (1974-11-01), Howlett
patent: 3999418 (1976-12-01), Morell
LandOfFree
Rigid chuck assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rigid chuck assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rigid chuck assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-603703