| US Patent: 18,967 
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| Machine for sawing shingles | 
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| Patentee: |  |
 | George Hall (exact or similar names) - Morgantown, VA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Dec. 29, 1857 |  USPTO (New site tip)
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                        Jeff Joslin
 
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| Description: |  | Machine uses a horizontal circular saw and a carriage that rocks on alternate cuts to vary the end of the bolt from which the shingle butt is taken. |  |