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:
Sep. 08, 1981

Filed:

Mar. 12, 1979
Applicant:
Inventor:

David Trevarrow, Horton, MI (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21K / ; B23D / ;
U.S. Cl.
CPC ...
408-2 ; 291591 ; 3317 / ; 340680 ; 340689 ; 408-7 ; 408 12 ; 408 19 ; 408 40 ; 408 50 ; 408 70 ;
Abstract

A machine for truing both the tire bead seats, and the side surfaces of a web of a wheel. The machine has a work supporting station with radially inwardly movable bead seat deforming jaws, and top and bottom machining heads on slides which move toward and away from the respective sides of the web of a wheel supported by the jaws. The axis of rotation of the machining heads are precisely concentric with the deforming jaws. The bottom machining head is used to chamfer the edges of bolting holes, and the top machining head is used to machine the bolting surfaces of the web. In the preferred embodiment, the bottom slide carries a plurality of gauging switches for contact with the web and for locating its welded position relative to the bead seats. The lower machine head also carries an adjustable gauge post which projects up past the jaws for contact by a gauging switch carried by the slide of the upper head. Upon actuation of the switch carried by the upper head, a predetermined depth of feed into the web is initiated to true the bolting surfaces. Angular misalignment is sensed by the gauging switches carried by the bottom head and the wheel rejected before machining if it is outside limits.


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