This page contains a photograph which is one of several belonging to the photo gallery pages which are part of several pages relating to
the invention of the world's first automatic totalizator in 1913 and Automatic Totalisators, the company founded to develop, manufacture and export these systems.
This is an image of the adders in the machine room of the Longchamps electro mechanical totalizator system. This system was described in a Paris newspaper as "The Insatiable Moloch". I suspect this name is a reflection of the fact that this is a system that can inflict a heavy atonement stemming from its appetite for money that cannot be satisfied. The adder on the left side of this photograph with two people looking at it has the rear end visible between the two. This rear end houses the solenoids that receive impulses from the ticket issuing machines, which cause escapements to activate allowing the rotation of the adding shafts. The rotation of each escapement on an adding shaft is summed by the epicyclic gear train. The scanners shown in the fourth photo in the Longchamps section of the photo gallery multiplexes seven Ticket Issuing Machines onto each of these solenoids. Therefore these adders must support at least 39 escapement wheels to cater for the 273 terminals used at this racetrack. The adder on the left hand side but closer than the one just discussed shows a close up of this section of the adder. Unfortunately it has its dust covers over this section of the adder obscuring the escapements and epicyclic gear trains. It does however reveal the nearest bank of six solenoids at the nearest corner of the adder.
KEYSTONE VIEW Co. 100 Rue Richelieu (le Journal) Paris
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