Portable boring machine

Details Portable boring machine Portable boring machine

1992-10-06

1994-09-27

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Means to drive tool

Including means to move tool along tool-axis

408138, B23B 4500, B23B 4702

Patent

active

053502590

ABSTRACT:
A portable boring machine comprises a casing (1) at the interior of which a boring spindle (4) is rotatably supported and axially movable, wherein normally to the axis a number of through-holes (5) are machined, being parallel and spaced for housing, in a manner so that they can be locked in the desired position, at least one boring tool (6), said casing (1) being surrounded integrally by a housing (2), provided with a handle (3), at the interior of which there are located a first motor (28) and a second motor (33), respectively, for the rotation and the axial movement of said boring spindle (4), there being also provided means (24), (26) for the adjustment of the cutting blade of said drilling spindle, as well as a control unit (42) for the control of the several functions of the apparatus.

REFERENCES:
patent: 1284456 (1918-11-01), Richards et al.
patent: 3803927 (1974-04-01), Lawler
patent: 3955629 (1976-05-01), Turner
patent: 4201271 (1980-05-01), Evans
patent: 4730958 (1988-03-01), Banoczky
patent: 5090489 (1992-02-01), Ettori
patent: 5157822 (1992-10-01), Farley

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