A-A-51168 1987 Edition, July 30, 1987
FORMING MACHINE, DOUBLE SEAM, HAND OPERATED
Includes all amendments and changes through Cancellation Notice 1, June 23, 1999
Additional Comments: CNCL NO S/S
This description covers hand operated, bench mounted, sheet metal, double seam, forming machines of the standard, heavy duty, commercial type, that are used in a production environment for finish seaming flat bottoms on straight or flared sheet metal cylinders after the edges have been flared and set down. The machines are intended for use in sheet metal shops and repair units for fabrication of cylindrical containers, covers, and like cylindrical items.