US Patent: 378,106
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| Friction Feed Mechanism for Iron-Planers
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Patentee:
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| Franklin Phillips (exact or similar names) - Newark, NJ |
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Patent Dates:
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| Applied: |
Jun. 04, 1887 |
| Granted: |
Feb. 21, 1888 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Hewes & Phillips
Franklin Philips Obiturary
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Description: |
| Crane & Miller - patent attorneys
The object of this improvement is to operate the tool-feeding mechanism of a reciprocating planer by a frictional connection with the reversible pinion-shaft used to actuate the planer table and the invention consists in the combination, with a friction-drum driven by the pinion-shaft, of a feed-shifting device operated by a strap pressed upon such drum and released when the feed movement is effected. The intermittent tension of the strap is effected by a lever which has its end operated in contact with a segment concentric with the friction-drum, the end sections of the segment being movable and being shifted by the reversing mechanism of the planer. The frictional connection of the feeding mechanism with the reversible pinion-shaft is maintained only during the period required to actuate the feed, and is then wholly released, so as to arrest the parts in frictional contact and to remove the frictional resistance to the motive power. The tool-feeding mechanism upon a planer consists commonly in a screw mounted in a cross-head and fitted to a nut upon a sliding carriage which sustains the tool. The rotation of the screw thus propels the carriage and tool at the desired rate along the cross-head, the tool meanwhile operating upon the material which is attached to the reciprocating planer-table. The rotation of the screw is effected during the reverse movement of the table, and is commonly produced by a ratchet wheel and pawl, the pawl being carried by an oscillating arm hinged upon the screw or upon a stud adjacent thereto and vibrated by some sort of connection with the belt-shifting mechanism of the planer. The reversible table is not shown herein nor the feeding devices, as they are already well known; and my invention is applicable to any machine having a shaft rotated alternately in opposite directions, as the pinion shaft of a planer-table, and having a mechanism shifted at each end of the cutting-stroke, as the belt shifting device in such a planer.
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