slot machine 
Electronic or mechanical gambling machine that is operated by inserting a coin into a slot in order to obtain a sequence of winning symbols.
Cylinder inscribed with symbols that is activated by the machine’s lever; when the three reels stop, the symbols line up to create a combination.
Plate onto which the player’s winnings are dispensed.
Display showing the combinations of winning symbols and the winnings to be paid.
coin reject slot
Small hole into which rejected coins fall.
Shape used to create combinations.
Device connected to the spring linkage to activate the reels.
Opening through which coins are inserted into the machine in order to play.
Case enclosing and protecting the device’s mechanism.