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SCIENCE, MECHANICS, INVENTION 687
A Trainman's Flashlight
A Bay City, Michigan, man recently has invented a flash­
light intended for the use of trainmen or workmen whose
duties make it necessary for them to use signals at night.
The device is a regular flashlight in appearance, being only
9 inches long and IK inches in diameter. Each end con­
tains an enclosed bulb and a specially made switch in the
center of the battery container operates the desired light.
The lens in one end is red and the other is white.
Register for Nickel
Telephone
A new device intended for
use with nickel tele­
phones has a register
which shows at a glance
how many calls have been
made and how many more
1 eniain of those that must
be paid for. The user
pulls a chain when the
call is made; this causes
the register to show in
black one more call made
and in red one less re­
maining. The register
run-, up onlv t" thirty, but
when the minimum num-
r is higher than that
: register may be used
by allowing it to repeat
itself. The register at­
taches to any telephone
by nwans of a clip.
Put a Meter on Your Stenographer
To measure the work done this meter i> attached to the
escapement wheel of the typewriter; since it is known that
a certain number of strokes is required to revolve this
wheel once, we know by the readings just how much has
been done.
The average rate of pay has been found to be $4.11 for
one hundred thousand strokes of the keys on ordinary
work. One firm which installed counters for its entile
staff of fifty typists saved practically four thousand dollais
a year by a readjustment of salary whereby the fast typists
were paid more according to their ability and the slower
ones reduced.