Eagle River review. [volume] (Eagle River, Wis.) 1890-1927, 1895-05-23


and shade of the picture.
This film is now attached to the sur
face of the cylinder, A, fig. 3, and caused
to revolye; tracer or point, B, adjusta-
bly, connected to lever c, rests upon
the film, and as the film revolves, rises
and falls with the undulating surface of
the film, and communicating an up and
down movement of the end of the lever, G.,
in multiplied degree. A number of tap
pets or levers. L, are centrally fulcrum
ed at D, and arranged so that one end
presses upward on the lower end of term
inals, F.; the opposite ends of the tappets
varying in distance from a horizontal line
over the end Of the lever, G, as shown.
When the lever, G., is at it's lowest point,
as influenced by depression in the gela
tine film, all the tappets press up against
the terminals; with a further revolution
of the cylinder, A, and an elevation in the
film forcing the lever, c, upward, all of
the tappets' contact with the terminals,
except one, is broken. The height of the
hill and depth of valley of the films sur
face measuring the number of tappets in
contact with the terminals.
One terminal of a battery, n, is ground
ed, and the other is connected to the full
crum, d. of the tappets, E, and the cur
rent passes through the tappets, F. term
inals +, and resistance, III, to the main
line wire. and thence on to the distant
solenoid. |, at the receiving end and to
the ground. When all Of the tappets touch
the terminals. all the resistances are in
parallel and the total resistance is least
and the current greatest; and vice versa.
resistance greatest and current least as
the number of tappets' contact are brok-
en-. BY this arrangement of the resist
ances, there are hills and valleys i'll the
current corresponding to those on the
films surface This variable current cir
culating around the solenoid, [, produces
IL varying pull on the core attached to the
end of the lever. J. This lever is full
crumed at K A diamond or V-shaped
cutter, L, is attached to the lever, be-
meath which is plain gelatine or wax
film attached to the cylinder, NJ.
With this arrangement in mind. it will
readily be seen that with one revolution
of the cylinder, A, as the tracer follows
the elevations and depressions upon the
film, the free end of the lever, c, is made
to contact with the ends of one or more
of the tappets, permitting more or less of
a current to pass through the resistance,
and exertng thereby more or less of a
downward pull on the end of the lever, J.
We have selected two examples of the
work done by these machines in their
present form. which will convey a faint
idea of the artistic capabilities it can be
made to display when it's future perfec-
ton of detail is accomplished. Both the
portrait of the inventor and the view of
the boy and dog were engraved upon these
machines in the private laboratory of Mr..
Amstutz, the time required in engraving
the latter being but three minutes.
1t is not difficult to believe that in the
future events which may take place in
London or Paris may be sent from photos
taken in Europe, and the reproduction of
the same in an artistic picture, appear
in the next mornings New York or Chi
cago papers; and this without disturbing
the existing conditions of telegra phic com