US Patent: 2,934,822
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| Device for cutting sheet material
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Patentee:
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| Melford H. Docken (exact or similar names) - Minneapolis, MN |
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Patent Dates:
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| Applied: |
Feb. 10, 1958 |
| Granted: |
May 03, 1960 |
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Jeff Joslin
Vintage Machinery entry for Kett Tool Co.
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Description: |
| The 1959-02-14 issue of the Minneapolis Star Tribune carried the following announcement. "New Shear Devised—C. W. Lind Co., Minneapolis, announced the development of a new sheet metal shear which will fit most industrial type quarter-inch drills for power supply. It is called the Docken Shear." A 1961 issue of Machinery carried an announcement that C. W. Lind Co. had introduced a new all-in-one shear "with its own power unit". With a year or so, mentions of the Lind Co.'s shear disappear and instead we find mentions of the "Burke-Docken" shear manufactured by W. P. B. Industrial Products, Inc., of Skokie, Illinois. Ads and mentions for the Burke-Docken shear continued well into the 1970s, touting its 360-degree swiveling head and its ability to handle material up to 16 gauge. By 1971, Burke-Docken shears were also manufactured by Kett Tool Co.After its expiry this patent was improved in patent 4,173,069, assigned to Kett Tool Co. |
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