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By means of a polarised relay, this difference in potential is relayed to a potentiometer fixed to the tote indicator. When the potentiometer (...) it turns a numbered screen. The picture shows the back of the tote indicator.
The Times of Ceylon Press
Camera in Operation at Newmarket
The Jockey Club introduced the camera patrol at Newmarket last week and the picture shows the camera operating during the Wrentham Apprentice Handicap race at Newmarket.
Central Press Photos Ltd.
The scale in the grand total unit showing the total tickets sold from all the weeders.
The Times of Ceylon Press
"The Machine Room" In the foreground is the Adder Machine. The units of this machine are numbered as shown. Now each number corresponds to the horse number in any raid i.e., horse number one is allotted unit number one.
The Times of Ceylon Press
The tote indicator as seen by the public showing the dividends marked on the screen.
The Times of Ceylon Press
The Weights and Blades in the Adder Machine
As the scale in the grand total increases, the weight which is controlled by this scale increases. Now this weight acts on a blade fixed to each unit and it tends to raise the blade to a horizontal position. The weights and blades are marked on th...
The Times of Ceylon Press
This is the unit of the Adder Machine (on right), showing the cog wheels, weeder, coils and Potentiometer. The coils induce the wheels to revolve by means of magnetism. The wheels attracted by the coils move a distance corresponding to the escapem...
The Times of Ceylon Press