dies, ready for the next charge, as shown. The plungers are operated by
hydraulic, steam, compressed air, or other power, the inlet and outlet
of such a pressure being regulated by a valve, an example of which is
shown at Fig. 1, and provided with the tappet levers, i i, hinged to the
valve chest, C, as shown, and attached to spindles, i' i', operating the
slide valves, and struck alternately at the end of each stroke, thus
operating the valves and the guillotine connections, i squared and i cubed. The
front ends of the cylinders may be placed at an angle for the more
convenient delivery of the moulded articles.--_Iron_.

[Illustration: MACHINE FOR MAKING ELECTRIC LIGHT CARBONS]

* * * * *




NEW ELECTRIC BATTERY LIGHTS.


There has lately been held, at No. 31 Lombard Street, London, a private
exhibition of the Holmes and Burke primary galvanic battery. The chief
object of the display was to demonstrate its suitability for the
lighting of railway trains, but at the same time means were provided
to show it in connection with ordinary domestic illumination, as it is
evident that a battery will serve equally as well for the latter as for
the former purpose. Already the great Northern express leaving London at
5:30 P.M. is lighted by this means, and satisfactory experiments have
been made upon the South-western line, while the inventors give a long
list of other companies to which experimental plant is to be supplied.