Scientific American, Volume 22, No. 1, January 1, 1870: A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. — John Shaqi
Scientific American, Volume 22, No. 1, January 1, 1870: A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.Various
Science
Scientific American, Volume 22, No. 1, January 1, 1870: A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
Various
Science -- Periodicals; Technology -- Periodicals
A comprehensive description of this excellent machine was given upon
page 230, Vol. XVIII., of the SCIENTIFIC AMERICAN. We now present our
readers with an engraving of it and a summary of its important features,
which doubtless render it equal if not superior to any machine of the
kind in market. The frame in which the feed rollers are arranged is so
hung to the frame-work of the molding machine, that it can be raised or
lowered at pleasure, in order to properly adjust the feed rollers for
action upon the "stuff," and it is also so constructed as to permit the
feed rollers to yield in case of variations in the thickness of the
"stuff" passing under them. The spindle of the side cutter-heads is hung
in a vertical frame arranged to be moved up and down, and laterally, to
adjust the cutter-head for action, and is provided at its upper end with
a box or bearing, whereby the bearing of the box is always kept upon the
spindle instead of at different points of the same as in other machines,
and this without interfering with the adjustability of the side
cutter-head. Thus uneven wear is avoided.
[Illustration: RUSS' MONITOR MOLDING MACHINE.]
The bed of the machine is formed with a series of slots or openings
provided with bridge bars so that the cutters may act upon the edges of
the stuff without danger of injury from striking the bed. The presser
shoe is also made adjustable for different thicknesses of the "stuff"
and self-yielding to variations in thickness, by a peculiar method of
hanging the bar, which carries the presser shoe, to the framework of the
machine.
The clamp which holds the press block which acts upon the "stuff" after
it has passed through the cutter, is of novel construction, and the
spindle of the side cutter-heads is so arranged in connection with a
loose pulley and the pulley-drums, that both cutter-heads are driven by
one belt and in the same direction.
The bed plate is provided with springs through which the side
cutter-heads are arranged, to move laterally or transversely with a
bridge-plate or plates, susceptible of adjustment independent of the
cutter-heads, whereby an adjustable support to the "stuff" is given as
it passes over the line of the openings in the bed.
Most machines have weighted pressure feed, but this having steel springs
adjustable by a screw and hand wheel, a heavy or light pressure can be
applied according to the work done or size of molding. The cutter-heads
are square and slotted so that any style of molding can be stuck by
putting cutters on all sides of the head, thus equalizing the cost and
lessening the power. The pressure shoe is arranged to hold the "stuff"
at the very point of contact with the cutters, and, as we have shown, is
readily adjusted to a long or short cutter, so that a small molding can
be made as smooth as a large one, and so as not to require any finishing
with sandpaper or a hand tool.
Public-domain text, read in full here on John Shaqi.
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