HOWARD ALLEN
Engineers in Stockton, CA
License number
Pennsylvania PE007193E
Category
Engineers
Type
Professional Engineer
Address
Address
2
Stockton, CA 95219
Pennsylvania
Pennsylvania
Professional information
Roll-Type Machine For Forming Cylindrical Sheet Metal Bodies
US Patent:
4133197, Jan 9, 1979
Filed:
Aug 29, 1977
Appl. No.:
5/828838
Inventors:
Howard Allen - Stockton CA
Assignee:
Carando Machine Works - Stockton CA
International Classification:
B21D 508
US Classification:
72 15
Abstract:
A roll-type machine for forming a cylindrical metal body from an initially flat sheet of metal; such cylindrical body being for use in the manufacture of tanks for air, gas, or water. The machine includes a forming roll which is mounted and controlled in a manner to automatically retract from its normal, fixed working position immediately prior to completion of formation of the cylindrical metal body whereby to prevent otherwise attendant out-of-round deformation of said body.