| US Patent: 616,659 
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| Rock or Ore Breaker | 
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| Patentees: |  
 | Philetus W. Gates (exact or similar names) - Chicago, Cook County, IL |  | Thomas W. Capen (exact or similar names) - Chicago, Cook County, IL |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Apr. 30, 1897 |  
| Granted: | Dec. 27, 1898 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Joel Havens
 "Vintage Machinery" entry for Gates Iron Works
 "Vintage Machinery" entry for Allis-Chalmers Mfg. Co.
 
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| Description: |  | In 1901, Gates Iron Works was merged with other firms to form Allis-Chalmers Mfg. Co.
Abstract: 
The object of our invention is to provide a simple, economical, and efficient rock and ore breaker. 
Claim: 
In a rock and ore breaker, the combination of a frame or base portion provided with an upper encircling portion, an annular-shell is portion provided with crushing -concaves inserted within the upper encircling portion and having its upper portion projecting above the same, means for securing the upper encircling portion and the annular shell together, a spider portion encircling the upper portion of the annular shell, and means for securing it to the annular shell, substantially as described. In a rock and ore breaker, the combination of a lower frame or base portion provided with an upper circular portion split longitudinally, an annular-shell portion provided with crushing-concaves inserted within the circular portion and having its upper portion projecting above the same, bolt mechanism for clamping the upper circular portion and annular shell together, a spider portion split longitudinally encircling the upper part of the annular shell, and bolt mechanism for clamping the spider portion to the annular shell. |  |