Title: Boring bar assembly improvement

Abstract: An improvement in a boring bar assembly is disclosed. The improvement relates to a lateral bar assembly in combination with the adjustable boring bar assembly of U.S. Pat. No. 2,838,316 issued to Albert Thomas, a co-inventor of the present invention. The improvement includes a lateral bar to which a major portion of the shank member of the boring bar assembly is removably fixed. The lateral bar has a plurality of longitudinally spaced threaded receptacles into which an end of the shank may be screwed. The shank may be selectively screwed into the lateral bar to thereby change the diameter of the boring bar assembly. The lateral bar may be varied in overall length with the number of receptacles likewise varied to thus vary the magnitude of the ranges of diameters of operation of the boring bar assembly.

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Inventors: Roman, Joseph M. (Zelienople, PA, US)
Thomas, Albert (Fairfax, VA, US)

Application Number: 518802
Filing Date: 1974-10-29
Publication_date: 1976-05-11
Assignee: Roman; Joseph M. (Zelienople, PA)
Primary Class(es): 408/186 408/153
Other Classes:
US Patent Ref:

1718089	Jun, 1929	Tesoroni	279/6.
1960124	May, 1934	Russell	279/6.
2438607	Mar, 1948	Jackson	279/6.
2489719	Nov, 1949	Myers	279/6.
3014391	Dec, 1961	Fuhrman	279/6.

Other Refs: 170,542

Mar, 1960	SW

Primary Examiner: Simpson, Othell M.
Assistant Examiner: Briggs, W. R.
Attorney: Bogdon; Paul