| US Patent: 301,177 
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| Overhead railway | 
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| Patentees: |  
 | Harry S. Haskins (exact or similar names) - Philadelphia, PA |  | John Sprogell (exact or similar names) - Philadelphia, PA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Feb. 11, 1884 |  
| Granted: | Jul. 01, 1884 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Edwin Harrington, Son & Co., Inc.
 
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| Description: |  | Improvements to patent 272,432, "more specifically in providing a turn-table and branch tracks with suitable locks, which are actuated by the movement of said turn-table, so that when the turn-table is in line with one of the branch tracks the lock of said end shall be open; further, in providing the turn-table rail with a lock to prevent the carriage running off the said rail during the movement of said turn-table and which lock is automatically opened when the said turn-table rail is in line with one of the branch tracks..." |  |