Apparatus for grinding a point on a tungsten electrode

Details Apparatus for grinding a point on a tungsten electrode Apparatus for grinding a point on a tungsten electrode

1990-03-01

1991-03-26

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51217T, 51237R, B24B 500, B24B 2900

Patent

active

050018680

ABSTRACT:
An apparatus for grinding a point on a tip of an elongated tungsten-electrode rod has a base, a disk rotatable on the base about a disk axis and having a disk face substantially perpendicular to the disk axis, and a drive on the base for rotating the disk about the disk axis. An elongated holder extending along a holder axis is adapted to hold the rod to be ground with its tip projecting from a front end of the holder. This holder has a rear end formed with an outwardly open annular groove. A stationary tip support having a notch open toward the disk is adapted to cradle the tip of the rod immediately adjacent the disk and an outer holder support spaced from the tip support has a notch open parallel to the notch of the tip support and is adapted to cradle the holder at the groove thereof. An inner holder support engaging the holder presses the holder and tip into the notches of the tip support and outer support. These supports are aligned along a line extending skew to the disk face and axis.

REFERENCES:
patent: 970227 (1910-09-01), Homer

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