Page 182 - 1969_WILLIAMS_ASPIRE

The "Series 500" Acceptor s 'are designed to requi re a mimmum of maintena nce and field
adjustment . Detection and rejection of unde sired or counterfei t coins are determined by size (both
thickne ss and diameter), weigh t, metallic compo sition, and bouncea bility,
Transfer cradles are used to test the size of the coin . Undersize diameter coins will pass be-
tween the legs of the transfer cradle and will be return ed. Oversize diameter coins will fail to pass
between the transfer cradle and the wiper and will be returned by actuating the wiper operating
lever. In the case of the quarter acceptor, an unde rsize lever must first be pivoted to unlock the
transfer cradle. Under size diameter "quarter s" will fail to unlock the transfer cradle and will be
returned by actua ting the wiper operating lever . Coins that are oversi ze in thickne ss wiIl fail to
pass between the magnet gate and the main chann el and will have to be dislodged and returned by
actuating the wiper operating lever.
Transfer cradles are also used to test the weight of the coin. Underweight coins will fail to
overcome the transfer cradle coun terweigh t and will be returned by actuating the wiper operat ing
lever .
A magnet is used to test the metallic composi tion of the coin. Highly magnetic coins, such
as steel or iron, will be retained by the magnet and will be returned by actuating the wiper oper-
ating lever. Coins having comparatively high magnetic properties , such as copper , will be slowed
down by the magnet and will drop off the end of the rail short of the "accept" entrance and be
returned. Coins having little or no magnetic propertie s, such as brass or zinc, will pass through
the magnetic field so fast that they will "overshoo t" the "accept " entrance and be returned .
VIEW
RETURN
In the case of the Nickel Accep tor, a bounce tester is used to test the bounceability of the
coin. Due to its magnetic properties , a genuine nickel passes quickly through the magnetic field
and drops off the end of the rail in an arc that causes it to hit the bounce tester which , because
of the coin's elasticity, "bounce s" it into the "accept" entra nce. A counterfeit coin passing through
the magnetic field at the same speed as a genuine nicke l will not have the same elasticity and so
will not have the same "bounce" as a genuine nickel and will miss the "accept" entrance and be
returned.