THE WORLD'S ADVANCE for JULY 



117 



$2,50022 a Year! 



AVE you the training that is necessary to fill a $2,500 ++ 

 job? Are your services in demand? Salaries are paid to " 



I the men who know. If you are ambitious to get into the big money class, *4> 



_3nd the coupon and find out about the opportunities in our profession. We need am- * 

 ' bitious men and will give you the proper training right in your own borne. Don t miss 

 this wonderful offer. Send the free coupon today do it right now. 



I Be a Signal Engineer 



Be the man who gets $2,500 a year. Com- 



plete Signal Engineering is one of the most 



fascinating of professions. As a railroad 



man you travel from coast to coast without 



it costing you a penny. You are the man 



who tells theother fellow what to do. You 



More Men Are Needed 



Railroads are constantly looking for competent Signal *< 

 Engineers. Thousands and thousands of miles of track are 



Hundreds of 



Department of Signaling. 

 1810 Wilson Aye. Room B140 

 fc Raventwood Sta'n, Chicago 



Gentlemen: Please send ma 



absolutely free and pre- 



9 paid yourbis new Signal 



Two Big Outfits FREE gj*j < 



Engineer's outfit and a draftsman's outfit absolutely free. 



can be the man who holds the big job. 



Send the Coupon for Big New Book 



and get the big new Signal book absolutely free. No obligatioas.*The I ok is free. Write today now. 

 DEPARTMENT OF SIGNALING, 1810 Wilson Ave,, Room B140. Ravenswood Station, CHICAGO, ILL. 





The Sand Blast 



Is a Money Saver!! 



SAND BLAST YOUR GOODS 



Before Plating or Painting 



because the sand blast surface takes the plate or paint better, 



quicker and it sticks. 



CLEAN YOUR CASTINGS AND 



PATTERNS-.DON'T PICKLE- THEM 



because the sand blast is quick and effective, clean and not 

 dangerous, as all other methods are. 



LEIMAN 

 BROS. 



SAND BLAST 



can do all this and more any boy or girl can operate it the day it is received. It 

 can't get out of order. It takes little power and, above all, costs less than any good 

 machine in your shop. 



YOU CANT SPOIL YOUR WORK 



IF YOU WANT A FINE, SILKY FINISH ON METALS, GLASS, RUBBER, FIBRE, CELLU- 

 LOID, IVORY OR WOOD, OR A ROUGH, FROSTY EFFECT, YOU GET IT, AND IT IS 

 UNIFORM DAY TO DAY. 



SEND US A SAMPLE OF WHAT YOU MAKE 



Air Pressure or Suction 



for all sorts of paper feeding devices and all 

 sorts of 



Automatic Machinery 



supplied positively and effectively by 



LEIMAN pi ft W F R ^ AND VACUUM 



BROS. B L. U W t rf o PUMPS 



They take up their own wear and they are the 

 only blowers and vacuum pumps that do. They 

 are so simply constructed that they can't possibly 



fet out of order just the machines for automatic 

 evices. 



Made in a Number of Sizes 



with capacities ranging from 4 to 338 cubic feet 

 of free air per minute; pressure one ounce to 

 10 Ibs. pressure; vacuum from one to 20 inches 

 and specially fitted machines for vacuum up to 

 28 inches CATALOG No. 138. 



LEIMAN BROS. 



62 AU John St. New York 



CATALOG NO. 141 



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