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A. DAIGGER & COMPANY, CHICAGO, U. S. A. 



HARDNESS AND SHEET METAL TESTING MACHINES 



3060 



3060B 



3060 BRINELL Testing Machine. This instrument measures the hardness of 

 materials by the indentation method. A hardened steel ball is pressed 

 into the smooth surface of the metal so as to make an indentation 

 which is read by optical or mechanical means. 

 Price, Style "A" (for 3000 Kg. pressure) Upon Application 



3060A Attachment for BRINELL Machine to read the depth of impression. This 

 attachment permits depth readings to 1/100 millimeters, and it was 

 constructed when it was found that the depth of indentation could be 

 more accurately measured than the diameter of indentation. 

 Price Upon Application 



3060B BRINELL Microscope. Designed to measure the impressions made in the 

 Brinell Ball Test. It is a compound instrument and permits of great 

 accuracy. 

 Price, with suitable case Upon Application 



3062 



3062 Pittsburg Metal Sheet Tester. To determine the drawing, stamping, com- 

 pressive and folding qualities of sheets of iron, steel, plated metals 

 and so forth. 

 Price Upon Application 



