| US Patent: 173,731 
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| Improvement in band sawing-machines | 
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| Patentees: |  
 | Levi L. Lamb (exact or similar names) - Chelsea, MA |  | Sewall K. Lovewell (exact or similar names) - Chelsea, MA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | May 15, 1875 |  
| Granted: | Feb. 22, 1876 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for S. K. Lovewell & Co.
 
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| Description: |  | The innovation is the use of springs in the blade-tensioning mechanism. We have seen saws from S. K. Lovewell & Co. marked with this patent date. |  |