Drill feed handle

Details Drill feed handle Drill feed handle

1985-04-08

1986-09-09

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Means to drive tool

Including means to move tool along tool-axis

408241R, 408712, B23B 3910

Patent

active

046105808

ABSTRACT:
The power tool has a magnetic base with superimposed permanent magnet assemblies. The upper assembly can be moved relative to the lower assembly to shunt or reinforce the magnetic field. When the sensing probe is pushed into the base the electric motor can be switched on to rotate a spindle on which a rotary cutting tool is axially mounted. The tool feed is controlled by a handle which can be mounted on either side of the tool housing. A coolant reservoir on the base has a hose connected to a pump which is connected to a manifold supplying coolant to the interior of the cutting tool. The cutting tool is biased upwardly and pinches off the coolant when the tool is raised from the work.

REFERENCES:
patent: 2213885 (1940-09-01), Petersen
patent: 2441414 (1948-05-01), Hohwart et al.
patent: 2613556 (1952-10-01), Gaskell
patent: 2813280 (1952-11-01), Huffman
patent: 3008155 (1961-11-01), Tsuda
patent: 3251250 (1966-05-01), Mitchell
patent: 3500707 (1970-03-01), Warren
patent: 3523470 (1970-08-01), Miller
patent: 3605521 (1971-09-01), Glenn
patent: 4240771 (1980-12-01), Derbyshire

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