Coin Meter Unlocks Typewriter (Apr, 1934)
Coin Meter Unlocks Typewriter
THE use of a typewriter at a convenient place is often much desired but out of the question. Now comes an inventor who has a machine which will work only when favored with a dime or a quarter placed in a slot.
Depending upon the generosity of the owners, the machine will operate for 30 minutes or more, although it can be adjusted to any length of time for any specified coin.
The operation is simple. A coin releases the machine lock for a specified number of contacts with letters and spaces.