568 



Popular Science Monthly 



I 



The mechanical cashier. This machine 

 collects, sorts, and counts various coins 



It Eats Nickels and Dimes and Counts 

 'Em Too at the Same Time 



NEW fare register is being used at 

 subway s t a - 



A 



tions and various 

 other places. It 

 does away with the 

 selling of tickets. 



The passenger 

 drops his coin into 

 the hopper. It 

 passes on to a re- 

 volving drum, . and 

 then to a revolving 

 pan having three 

 holes in it. Any 

 p e n n >' , nickel, or 

 dime is brought by 

 this pan to the count- 

 ing table. Coins of 

 larger denomination 

 cannot get into the 

 machine. At the 

 counting table a 

 sorter gear rotates a 

 cam on which are 



SKield riAg Usual I>jq5 



, . Locked 



Notches to \ \ poj.tiofx 



free lugs 



Hold-dowr\ 

 bolta 

 This device pares down the minutes and 

 tl'.c trouble in tire-changing operations 



Operv 

 position 



three projections adapted respectively 

 to catch the pennies, nickels, and dimes. 

 These then register and total up, an in- 

 dicator at the top of a short column at 

 the upper part of the machine showing 

 the total number of fares paid to date 

 and also the amount in the register in 

 dollars and cents. 



If a man has a nickel he can drop it in 

 the hopper and immediately pass to his 

 train without losing time buying tickets. 



Loosening all the Lugs of a De- 

 mountable Rim at Once 



F you own an automobile you know 

 just what it means to have a tire 

 puncture. You have to unbolt each 

 clamping lug in order to remove the rim 

 and then adjust and tighten each into 

 position when the rim is replaced. If 

 you" have six bolts to unscrew and 

 then tighten, each one takes you about 

 two minutes — a total of twelve minutes. 

 What a saving and a blessing it would be 

 if all the clamping lugs could be released 

 at once and clamped back into position 

 at once. 



Mr. R. G. Mason, a Brooklyn in- 

 ventor, has made this possible and thus 

 you can change your tire in almost no 

 time at all. He mounts a heavy locking 

 ring outside or in front of the clamping 

 lugs on the side of the wheel felly. This 

 ring has openings 

 corresponding with 

 the lugs, and by 

 moving the ring 

 the detachable part 

 of the rim can be 

 taken off and put on 

 in one operation. 

 Turn the ring until 

 the openings are op- 

 posite the lugs; the 

 rim can be removed 

 because the lugs are 

 loosened. Now 

 when the lugs are to 

 l)e readjusted and 

 locked into position, 

 the ring is shifted 

 again until the solid 

 portions of it are 

 opposite the lugs. 

 The illustration 

 shows the details. 



