Popular Science Monthhj 



893 



No Double Exposures 

 with This Device 



BLESSED if I can re- 

 member," exclaimed 

 Oscar, "whether or not I've 

 wound the film after tak- 

 ing that waterfall a little 

 while ago! I think I'll give it 

 another turn for good luck !" 



When the film roll was 

 developed Oscar found a 

 blank next to the negative 

 of the waterfall and a 

 -double exposure in another 

 part of the film. 



To put an end to such 

 uncertainty, Oscar — his full 

 name is Oscar Howard Wil- 

 ber, Jr. — has patented a very 

 simple device which may be 

 attached to any film camera 

 at small cost. A flexible rq,d, sliding in a 

 sheath, is so arranged, that after the trig- 

 ger of the shutter of the lens has been 

 pressed down to make an exposure, the 

 front end of the rod is pressed forward 

 by a spring so as to bar the trigger 

 from returning to its former position. 

 To remove the obstacle and make 

 another exposure possi- 

 ble, the receiving roll 

 has to be given another 

 turn, which naturally 

 brings an unexposed 

 film before the lens. 

 By turning the roll the 

 film is drawn over 

 another roll, provided 

 with a disk at one end. 

 That disk has a tooth 

 which engages, at each 

 revolution, the hook 

 at the other end of the 

 flexible rod, pulling it 

 back and thereby re- 

 leasing the trigger of 

 the shutter for another 

 exposure. 



This clever device will 

 spare many an amateur 

 photographer the dis- 

 appointment of losing, 

 by double exposure, a 

 picture valued for its 

 happy associations with 

 a pleasant vacation. 



Western Newspaper Uni< 



These choir boys take knitting seriously and do good work 



Knitting Is Not by Any Means 

 Confined to the Ladies 



O' 



got a good start. 



With a film camera equipped 

 like this one even the most for- 

 getful of amateur photographers 

 caimot make a double exposure 



F course Sister Susie's been sewing 

 shirts for soldiers for some time now, 

 and has also been knitting sweaters, 

 socks, scarfs, etc.; consequently she has 

 Still, she must look to 

 her laurels, for there 

 is a valiant host of 

 rivals springing up — 

 the boys are taking a 

 hand. In our illustra- 

 tion is seen a group of 

 Cathedral choir-boys in 

 New York, who have 

 (ostensibly) foresworn 

 horseplay and mischief 

 in the intervals of wait- 

 ing, and are seriously 

 knitting comforts for 

 the soldiers and sailor- 

 boys. They have been 

 properly and thorough- 

 ly instructed and are 

 turning out just as 

 good stuff as their sis- 

 ters do. The boys dis- 

 play a remarkable seri- 

 ousness of purpose in 

 their new task and no 

 longer consider knitting 

 as mere girls' work 

 unworthy of the atten- 

 tion of a manly boy. 



