US Patent: 5,503X
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| Hollow auger
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Patentee:
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| Abel Conant (exact or similar names) - Pepperville, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jun. 11, 1829 |
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Jeff Joslin
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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. The patent drawings and specification for this patent are missing. From Journal of the Franklin Institute Vol. 6, Sept. 1829 pg. 176:"For an improvement in the Hollow Auger, for tenoning the spokes of wheels; Abel Conant Pepperell, Middlesex county, Massachusetts, June 11."After the spokes of a wheel have been driven into the nave, or hub, the ends which are to pass into the rim have to be rounded. This is frequently done by a hollow auger, which leaves the tenons in the form of round pins; it is this hollow auger upon which improvements are now claimed. The auger is to be made in two pieces. The front piece, upon which is formed the cutting face, is so perforated from end to end, as that the hollow may be in the form of the frustum of a cone, the smaller end being towards the cutters; this is for the purpose of avoiding friction from the tenon within the hollow. The back part of the auger is solid, one end being fitted and fixed into the larger end of the conical part. The back end of the shank is squared, to fit a common bit stock, with which it may be turned. The auger is fitted into two collars, like the mandrel of a lathe; in these collars it has a traversing motion. The hub, with its spokes, are to be fixed to turn on a centre, and the spokes are brought in succession opposite to the hollow auger, properly fixed and adjusted for the purpose of cutting."There is a collet upon the shank of the auger, behind the back collar; this, when the auger has bored far enough, comes in contact with the collar, and all the shoulders are, consequently, at precisely the same distance from the centre of the wheel."The form of the cutting edges, of which there are two upon the face of the auger, differs somewhat from that ordinarily given to it."The claims are to making the auger in two parts;-making the inside conical;-giving to the cutting edges a more curved form than usual, and the mode of supporting and using the auger." |
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