US Patent: 869,821
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| Sawmill-Feed
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Patentee:
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| Robert L. Woodruff (exact or similar names) - Winder, Jackson County, GA |
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Patent Dates:
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| Applied: |
Apr. 08, 1907 |
| Granted: |
Oct. 29, 1907 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Woodruff Hardware & Mfg. Co.
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Description: |
| Abstract:
My invention relates to improvements in sawmill feeds, and has for its object, the provision of a frictional feed mechanism for sawmill carriages which shall be simple, durable and practical in every respect. Another object of my invention is the provision of a feed mechanism by means of which the carriage may be run at any desired speed either forward or reverse, and also to provide very simple controlling means for the feed mechanism whereby by simple muscular movements of the Sawyer, the carriage may be run forward at any desired speed, stopped and reversed with but slight exertion on the operators part. A further object of my invention is to arrange the different members of the mechanism in such relation that they shall be balanced with respect to the pressure brought to bear on each, so that no undue wear of any of the parts shall occur, and a still further object is to reduce the working parts to a minimum so that there shall be no waste of energy.
Claim:
A sawmill feed comprising a main mandrel and friction pulley thereon, an intermediate shaft, a disk there on engaged by the pulley on the mandrel, a bevel edged disk on the opposite end of the intermediate shaft, a movable mandrel, a fixed bevel edge disk thereon and a relatively slidable friction pulley thereon, cam mechanism for shifting the movable mandrel longitudinally, and means for causing engagement of the clutch members to shift the shaft longitudinally to cause engagement of the bevel edge friction disks, said means also serving to cause engagement of the movable friction pulley with the friction bevel edged pulley on the intermediate shaft.
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