| US Patent: 456,853 
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| Gas or Vapor Engine | 
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| Patentees: |  
 | Arthur Rollason (exact or similar names) - Sandiacre, Derbyshire County,  England |  | John Henry Hamilton (exact or similar names) - Sandiacre, Derbyshire County,  England |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Mar. 26, 1891 |  
| Granted: | Jul. 28, 1891 |  USPTO (New site tip)
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                        Joel Havens
 "Vintage Machinery" entry for Electric Manufacturing & Gas Engine Co.
 "Vintage Machinery" entry for Wells Brothers Ltd.
 
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| Description: |  | Patented in England, 18 Oct 1889, #16,434. |  |