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Scientific American Supplement, No. 561, October 2, 1886 by Various
page 7 of 163 (04%)
worked by one engine, having a cylinder 20 in. by 3 ft. stroke, and
driving eighteen to twenty pumps of varying diameter and short stroke.
The press has two long-stroke rams, LL, of small diameter, to compress
the loose material, and two short-stroke rams, FF, of large diameter,
to give the final squeeze. These two pairs of rams act alternately,
the one pair being idle while the other is in operation. The lashing
of the bale takes place while the larger rams are in action, the bale
being supported on the grid, B, which is pushed under it through
grooves formed in the press-head, S (Fig. 1). When the grid is in
place the press-head can be lowered, and the box be filled, while the
bale is receiving its final squeeze from the inverted rams above.

In Figs. 1 and 2 the press is shown in the position it would occupy if
the bale, M, were just completed and ready to be pushed out, and the
box, N, were full of material. The filling doors, CC, are shown turned
back level with the floor, the main doors, AA, are open, as are also
the end doors, KK, to admit the men to fasten up the bale. If water be
admitted to the subsidiary cylinder, H, the head, G, and two rams, FF,
will be raised, and then the bale, M, can be thrown out finished. All
the doors are now closed and water admitted to the rams, LL. These
immediately rise, pushing the contents of the box, N, before them, and
compressing them until the table, S, reaches the level of the grid, B.
At this moment the tappet rod, D, shuts off the water, and withdraws
the bolt of the doors, AA, which fly open. The grid, B (Fig. 2), is
then run through the grooves in the press-head, S, and the rams, LL,
are allowed to descend ready for a baling cloth to be inserted through
the doors, EE, and for the box, N, to be refilled. At the same time
the head, G, comes down on to the bale and compresses it still
further, while the men are at work lashing it. When the material is in
hanks, like jute, the rams, LL, are lowered slowly, while a man
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