US Patent: 1,499,412 
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| Drilling machine
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	        Patentees:
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 | Roswell H. Rausch (exact or similar names) - Plainfield, NJ |  
| Willard Thomas Sears (exact or similar names) - Montclair, NJ |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Feb. 21, 1921 | 
 
| Granted: | 
Jul. 01, 1924 | 
 
 
 
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                        Jeff Joslin Vintage Machinery entry for Niles-Bement-Pond Co. 
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        Description: |  
| Improved control of the spindle drive change-speed gearing of the radial drill in patent 1,296,863. |  
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