Coin Slot

Coin Slot Magazine - #083 - 1982 - January [International Arcade Museum]
set on two cherries, the payout arm should rotate the
carousel enough spaces to deliver the exact number
of coins needed for the minimum payout, usually three
coins. Note that the carousel must back-up more than
three spaces since the coin in space number one must
move approximately three spaces back before it is
delivered to the payout cup. If the carousel does not
rotate far enough, then the guide plate must be moved
counterclockwise to allow the payout arm to drop
earlier. If the carousel rotates too far, then move the
guide plate clockwise for the reverse effect.
'Since the majority of problems
encountered in the Columbia
first space and then retracts. If there is no coin in this
space then the carousel will not advance, thus preventing
incomplete filling of the carousel with resultant short
payouts. Should the carousel fail to advance fully when
a coin occupies this space, then the turret will attempt
to deliver a second coin to the same slot, creating a jam
which causes most of the problems that the Columbia
is heir to. Movement of the coin advance lever is
regulated by an adjustable linkage fulcrum located at
the upper right rear corner of the mechanism frame.
There are two types of adjustment systems; one
consisting of a moveable slotted fulcrum plate, and the
other simply an adjusting screw with locknut. In either
case, adjustment is correct when the advancing lever
moves the carousel exactly 1 Vi spacea Importance of
accuracy in this adjustment cannot be overempha
sized.
The only adjustment now remaining is that of the
are basically coin jams
coin vestibule gate linkage. When a coin reaches the
of one sort or another,
a small vestibule where it is retained until the carousel
correct execution of the
adjustments covered above
usually rids the mechanism
of any further problems . . ."
Next adjustment is the carousel detent pawl release
camplate. This device is located adjacent to the payout
rack, and is in contact with the roller arm of the
carousel detent pawl. Proper positioning of this cam-
plate is such that the pawl disengages from the
toothed underside of the carousel at the exact moment
that the payout arm engages the carousel. If the pawl
releases the carousel too early, then the carousel
would be free to rotate in either direction without
control. If the pawl releases too late, then the mech
anism would instantly jam, and no payout could occur.
Simply move the camplate left or right until the proper
action is achieved.
Final adjustment to the carousel payout system is to
limit the movement of the payout finger and rack
assembly. For each payout combination beyond two
cherries, the payout finger will move through the discs
until it contacts the stepped stop plate. Set the reels on
three plums and observe that the carousel moves the
correct number of spaces. If necessary, slacken the
fixing screw and move the plate left or right by turning
the adjusting screw until proper payout is obtained.
When correct payout for the plums is achieved, then
the payout for the other combinations will automatically
be correct, and the plate can be firmly tightened in
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At the end
of each play,
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made, the carousel
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an empty space for the coin in the turret to
drop into. This movement is accomplished by an
advance lever which pushes against the coin in the
January
1982 Arcade Museum
©
The International
eighth position in the escalator turret, it is dropped into
advances, when it is allowed to drop into the empty
carousel slot Dropping of the coin is controlled by a
pivoting gate linked to a leaf-type spring attached to
the top of the turret advancing lever. This leaf spn-^j
can be adjusted to move the gate earlier or later as
required to ensure that the coin in the vestibule is not
released until the carousel advances.
This completes the sequence of adjustments on the
Columbia, all of which are directly related to the coin
handling portions of the mechanism. Since the majority
of problems encountered in the Columbia are basically
coin jams of one sort or another, correct execution of
the adjustments covered above usually rids the mech
anism of any further problems, allowing you to more
fully enjoy an interesting and unusual machine with a
fascinating and unique action.
THIS MONTH'S HINT:
Next time you visit your local hobby shop, you should
take the opportunity to stock up on brass tubing.
Supplied in twelve inch lengths of various diameters in
1 /32" increments, each size will nest accurately inside
the next larger size, allowing you to create what ever
wall thickness you need. Easily cut to length with a
tubing cutter, these brass tubes can be made into
bushings or bearing sleeves, spacers on shafts, or
combined with standard screws to make shoulder
screws. You can also resize worn out holes by drilling
the piece to be repaired to the size of the tubing with
the same bore as the original hole, cutting to length,
inserting it into the new hole and soldering it in place.
Priced in the 40$ to 80$ range according to size, you
will find endless applications for this inexpensive and
versitile material.
Please send your mechanical questions to Marc
Harrison, in care of The Coin Slot, and help promote
the exchange of knowledge amongst your fellow
collectors.
THE COIN SLOT—55
http://www.arcade-museum.com/