Patent Model - Dredging-Machine

Maker and role
John Worthman (b.1836, d.1881), Patentee
Production date
Apr 26 1881
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Object detail

Brass, iron
6 1/2 x 13 x 8" (16.5 x 33 x 20.3cm)
Worthman's patent has for its objective "to automatically discharge the excavated material from the buckets onto an endless apron or carrier, which will deposit the same at any desired distance from the dredge." This is accomplished "by forming the buckets with hinged or pivoted bottoms of such form and arrangement that when the loaded bucket arrives at the proper discharging point the bottom is forced up by two cams on its under side coming in contact with rollers or wheels and causing the material to be forced out of the bucket by the bottom being raised even with the mouth of the bucket”. (patent #240,566)
Object number
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