The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 27, 1981

Filed:

Mar. 07, 1979
Applicant:
Inventors:

Floyd R Gladwin, deceased, late of Grosse Ile, MI (US);

Joseph Grzincic, Grosse Ile, MI (US);

Assignee:

Gladwin Corporation, Taylor, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23B / ; B23B / ;
U.S. Cl.
CPC ...
82 / ; 82-14 ; 408-3 ; 409225 ;
Abstract

A tapered and curved internal diameter is formed within a tube used as a continuous casting mold by feeding the tube lengthwise along an arc which is tangent to the axis of the spindle of a boring mill having a rotatable boring head arranged within the tube for cutting the interior wall thereof. The boring head and spindle revolve about a fixed axis, but the boring tool or cutter carried by the head is gradually moved transversely of the spindle axis while the tube is advanced along the arcuate path. Thus, the opening within the tube is tapered from one end to the other, and is also curved, wherein the tube is useful as a continuous casting mold and the like.


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