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a forming machine for special work. The rolls can be made of any length up to 15 inches between the housings. Beading rolls can be furnished of any style and shape required. It is adapted to metal as thick as No. 16 gauge.
Extra Heavy Former. The illustration in Fig. 104 represents an extra heavy three-roll former for special work. It is adapted to forming cylinders from 4
inches in diameter, upward, from stock as thick as %-inch, and it will be found very desirable for such work.
They are made in different lengths to suit the requirements.
Power Crimping Machine. The cut in Fig. 105 represents a power corrugating machine, with 3-inch rolls 24 inches long. It was designed for special work and gives the best satisfaction. It is back-geared 8 to 1 and is adapted to corrugate material not heavier than IXXX tin.
Other styles and sizes of these machines are made to work by hand or power as may be desired.
With each of the corrugating machines an attachment is furnished that straightens and leaves flat, sheets of metal after they are corrugated.
Corrugating and Crimping Machine. Fig. 106 represents an extra heavy power corrugating machine on legs with 8-inch steel rolls, 48 inches long. It has cut
gear and will crimp No. 20 iron. They are made so that they can be arranged that either crank or pulley can be used.
These machines have the same special attachment for straightening and flattening the work after it has been corrugated as the machine illustrated in Fig. 106.
Lock Seam Tube Former. The machine shown in Fig. 107 is constructed for forming tubes which have lock seams. To do this it is necessary to first cut the blanks and turn the edges on a folder. On the mandril of the former there is a slot to receive the blank with the lock turned. When properly inserted the forming of the tube is completed by simply turning the mandril.
The back upright bar is so arranged at each end that it may be adjusted to admit of different sized
mandrils. The large end of the mandril to which the handle is attached fits into a socket in the journal box on the right of the machine. When in the correct position to form tubes the small end of the mandril fits into a socket on the left of the machine. The journal box is arranged to turn on a pivot, that the mandril when released from the socket at the small end may be turned at an angle and the work when completed easily removed. On this machine tubes from tin can be formed up to 32 inches in length,