Title: Portable milling tool

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Claims: What I claim is:

1. In a portable milling tool, a rectangular framework, tracks formed in the longitudinal member of the framework and carriages mounted to move longitudinally in said tracks, transverse tracks mounted on said carriages and a cutter carriage mounted on said transverse tracks, a cutter adjustably mounted on said cutter carriage and means for moving said cutter carriage transversely or longitudinally as said cutter is actuated, said cutter comprising a motor having a drive shaft extending from one end and a cutter head mounted on said drive shaft, a tubular housing receiving said motor having a bearing chamber and a bearing supporting said drive shaft, and said housing being externally threaded to receive an adjusting nut, and an internally threaded collar mounted on said housing and movable by said nut, said housing having a keyway formed longitudinally therein and a key anchored to said collar and mounted in said keyway maintaining said housing against rotation as the nut is rotated.

2. The device defined in claim 1 wherein independent motors are provided for independent operation of said carriages and said cutter.

Other info:

Inventors: Gilmore, Guy T. (Houston, TX, US)

Application Number: 508693
Filing Date: 1974-09-23
Publication_date: 1976-02-03
Assignee: Multi Fab. Inc. (Houston, TX)
Primary Class(es): 409/178 144/114.1, 144/134.1, 144/136.1, 144/136.95, 144/154.5, 408/137
Other Classes:
US Patent Ref:

480040	Aug, 1892	Saylor	408/137.
2827836	Mar, 1958	Horth et al.	90/15.
3382768	May, 1968	Mount	90/12.
3489191	Jan, 1970	Blevins	144/134.

Other Refs:
Primary Examiner: Meister, J. M.
Assistant Examiner: Silverberg, Fred A.
Attorney: