Apparatus for, and method of, drilling lug holes and valve stem

Details Apparatus for, and method of, drilling lug holes and valve stem Apparatus for, and method of, drilling lug holes and valve stem

1994-05-16

1996-04-02

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

269 24, 279137, 408 79, 408103, B23B 3500, B23B 4100

Patent

active

055035086

ABSTRACT:
A member is disposed against a motor vehicle wheel at a position near the center of a bore for receiving the wheel axle. The member may be a collet expansible radially against the annular wall defining the central bore. Alternatively, a ring may be moved into concentric relationship with the central bore and then disposed against the back side of the wheel. Clamping members are then moved, preferably axially and rotationally, against the wheel front side at a position near the wheel periphery. A snubber ring is thereafter moved against the wheel back side, preferably at a position corresponding radially to the positions of the clamping members against the wheel. Each member at the wheel periphery may be moved by introducing hydraulic fluid into an individual one of a plurality of cylinders to move a piston coupled to such member. Such fluid may pass initially through first lines to the cylinders associated with the clamping members and then through the lines and a second line to the cylinder associated with the snubber ring. Because of its size, the second line provides fluid to the snubber ring only after the clamping members have been disposed against the wheel. The lug holes and the valve stem hole may be drilled from opposite sides of the wheel after the wheel has been clamped.

REFERENCES:
patent: 1412170 (1922-04-01), Dixon
patent: 1498879 (1924-06-01), Lofland
patent: 1821926 (1931-09-01), Booth

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