US Patent: 828,859
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Combined Wrench and Thread Retracing Tool
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Patentee:
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John Merckens (exact or similar names) - Chicago, IL |
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Patent Dates:
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Applied: |
Apr. 17, 1905 |
Granted: |
Aug. 14, 1906 |
Patent Pictures:
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John Merckens patent August 14, 1906 |
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Stan Schulz
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Description: |
The invention relates to improvements in combined wrenches and thread-cutting tools. The main objects of this invention are to provide an improved form of thread-retracing die and improved means for securing the die within the handle of the wrench. Together with Merckens patent No. 825,401,(the drawings are nearly identical!!!) this patent was produced as the "PERPETUAL GRIP ALL PARTS RENEWABLE" alligator wrench by Edmonds-Metzel.
See also patent no. 816,570 for another Edmonds-Metzel alligator wrench design. |
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