US Patent: 531,723
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| Steam-feed for sawmills
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Patentee:
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| William E. Hill (exact or similar names) - Kalamazoo, MI |
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Patent Dates:
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| Applied: |
Oct. 20, 1893 |
| Granted: |
Jan. 01, 1895 |
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Jeff Joslin
Vintage Machinery entry for William E. Hill & Co.
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Description: |
| "My invention relates to direct acting steam feeds for sawmills and more particularly to the kind requiring very long steam cylinders. This kind of a device when adapted for use in sawing the very tall timber found on the Pacific slope often requires a steam cylinder one hundred feet long and a very common length of these cylinders is sixty feet. Where such very long cylinders are used the piston rods are very heavy and very likely to sag and they also bring great weight to bear on the piston head causing it to rapidly wear away the lower side of the steam cylinder. Another difficulty to be overcome is the bending or buckling of these very long piston rods when the power is applied... The objects of my invention are to overcome all these difficulties by suitable guides and supports for the piston rod and suitable means of attaching the piston rod to the carriage so that slight lateral variations in the movement of the carriage shall not affect the piston rod." |
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