Posted 7 years ago
Arrow Electric Ball Clock manufactured circa 1978 by the Arrow Handicraft Corporation.
The clock works by using steel ball bearings to indicate the exact time. There are three main rails which are numbered for hours (bottom rail) and minutes (center & top rails). The first photo shows the time as 12:59. An electric motor rotates a scoop arm that picks up a ball bearing every minute and deposits it on the top rail. Every five minutes, the top rail will dump and deposit a ball on the second rail. Every hour, the upper & middle rails dump, and one ball is transferred to the bottom rail to increment the hours. At 1:00 all three rails release all the ball bearings to the feed rail at the bottom. This is a very noisy timepiece.
Thanks for looking,