US Patent: 20,150
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| Device for governing lateral motion of carriages in gigging back in circular sawing machines
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Patentee:
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| William M. Ferry, Jr. (exact or similar names) - Ferrysburg, MI |
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Patent Dates:
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| Granted: |
May 04, 1858 |
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Jeff Joslin
Vintage Machinery entry for Ottawa Iron Works
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Description: |
| From the 1858-05-15 issue of Scientific American: "In saw mills which have the carriage arranged to run upon friction wheels having a lateral movement by means of offset boxes from toward the saw while gigging back, and which have the feeding head blocks, feed automatically by means of an oblique inclined gage bar and ratchet lever, inaccuracies are experienced in the thickness of the boards sawed. This difficulty arising from the wear of the boxes and track, and the consequent chance allowed the carriage of being forced from the saw, when the feeding ratchet lever comes suddenly in contact with the inclined gage bar, and is resisted by said bar in a manner to effect the feeding of the head blocks, and yet, at the same time, to pull over the carriage head blocks and log the same distance as the wear of the boxes and rails will allow. This invention of W. M. Ferry, Jr., of Ferrysburg, Mich., which is clearly defined by the claim, completely obviates the above objections, and therefore will prove a valuable auxiliary to self-setting saw mills." |
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