The Denison review. [volume] (Denison, Iowa) 1867-current, 1905-11-29

channel.
This accuracy of movement is OBJ
tanned by employing cam to impart
the step-by-step movement to the re-
volving cylinder. The cam revolves
on a shaft, the bearings of which are
rigidly attached to the crosshead of
the machine, which in turn is firmly
attached to a main shaft extending
through both cylinders. Motion is
impaired to the cam through gears
extending back to shaft on the cross
head driven by belt or motor. The
cam works against roll shaving bear
ings on pins driven solidly into the
top of the cylinder. These rolls, for
ty-five in number, form circle about
four inches less in diameter than the
cylinder. AS there are just half as
many rolls as there are channels, the
cam in each revolution gives the cyl
inder two forward thrusts, moving
it each time distance equalling the
distance between the channels. The
rolls are shaped to conform to the
shape of the cam; this insures the
accurate movement of the cylinder.
The rolls overcome friction, thus pre-
venting wear on the cam, and this,
the part of the machine requiring
greatest degree of accuracy, will work
for years without readjustment.
On solid upright, fastened at the
top to the crosshead, and at the lower
end to ring attached to the bottom
of the lower cylinder, is bracket upon
which is placed type for distribution.
The mechanism for loading the chan
nels of the distributing cylinder with
lines of dead type from this gally is
also attached to the upright, and it's
shaft is connected by gears with the
shaft of the cam which moves the
cylinder, so that the two parts work
in unison.
The working parts of the loading
mechanism consists of an arm, actuat-
ed by a cam, for lifting the weights
in the channels of the distributing
cylinder; plunger for pushing sin
gle line of dead matter into the chan
mel when the weight is raised, which
plunger is operated by an arm con-
nected with second cam; and a
device for making the parts operate
whenever an empty channel comes to
the loading point as the distributing
cylinder revolves. These parts are
all driven by single shaft, on which
are the two cams and the releasing
mechanism.
A galley of dead type being plac-
ed on the bracket, with face of type
outward, the distributor is started.
If the matter being distributed is
loaded the leads are withdrawn by the
plunger as it returns, and are dropped
into receptical below the loader.
The pawl being disengaged, as before
described, the vertical shaft now
rests until another empty channel
presents itself to be loaded. The
column of dead matter is moved for
ward by spring, bringing next line
in the galley into position to be load
ed. All these movements are
performed during the interval be-
tween each forward step of the cylin-
der. They are made quietly, anc
without strain upon the type, each
line being separated from the column
in the galley before being carried in.
to the channel by the plunger.
The distributor is not delayed by
the loading, but rotates at its norma
speed. If every channel in the dis.
tributing cylinder should be empty
when it is started, the loader would
fill all in three-quarters of minute
In practice, however, there are gen
orally but few lines to be loaded il
each revolution of the cylinder.
The lower-case letters and othel
characters principally used are located
} in the lower cylinder directly in from
of the operator, and as they become
filled or emptied he stops or starts the
distributor by moving convenient,
: located lever. When the galley O.
dead type becomes empty, it is the
} work of but moment to take it of
and substitute a full one of eithe,
loaded or solid matter.
The sorts in the different channel.
; distribute in about the proportion re
quired by the operator. This depend!
somewhat upon the character of the
matter which is being set and distrib
} uted; so provision is made for quickly
; removing from it's channel in the low
er cylinder any sorts which distribute
faster than required, or for replenish
ing the supply of sorts which do MOI
distribute rapidly enough. Galley.
for containing reserve supply o.
sorts are kept in a cabinet sent will