Method of retipping top-drive filling spindles

Details Method of retipping top-drive filling spindles Method of retipping top-drive filling spindles

1978-10-02

1980-06-03

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Repairing

29445, 29458, 294695, 29525, 57129, 242 4621, 2421183, B23P 700

Patent

active

042054230

ABSTRACT:
A top-drive filling spindle having wear on its tapered tip can advantageously be retipped by cutting the worn tip thereoff up to a predetermined point thereon; boring a hole into the middle of said cut spindle tip; placing a male through hardened replacement tip in said hole; securing the tip thereon; and, grinding the thusly secured sleeve to the standard taper for top-drive filling spindles. With the application of the through hardened sleeve, it is anticipated that spindle wear would not occur for perhaps six to twelve years or more--a two to three fold increase over the life of spindles currently used by those skilled in the art.

REFERENCES:
patent: 2331611 (1943-10-01), Kennedy et al.
patent: 2582325 (1952-01-01), Gleitz et al.
patent: 2708336 (1955-05-01), Gleitz
patent: 2775859 (1957-01-01), Winslow
patent: 2922274 (1960-01-01), Sacchini
patent: 3146142 (1964-08-01), Maly
patent: 3431628 (1969-03-01), Miller et al.
patent: 3534917 (1970-10-01), Blake
patent: 3782660 (1974-01-01), Blake
patent: 4034462 (1977-07-01), Hentges

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