GB Patent: GB-188,505,114
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| Parallel vice
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Patentee:
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| Joseph Parkinson (exact or similar names) - Bradford, county York, England |
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Patent Dates:
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| Granted: |
Apr. 24, 1885 |
Espacenet patent
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Carl Matthews
"Vintage Machinery" entry for J. Parkinson & Son
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Description: |
| This patent vise was sold as the "Parkinsons' Patent Perfect Vise", using the American "Vise" instead of "Vice" as a way of marking their product as different. The primary innovation of this vise was the use of a buttress thread rather than a square-cut thread. As of 2020 the British patent drawings and specifications are not available online (the image here is taken from the German version of this patent). This vise was also awarded US patent 361,445, Canada patent CA-23,982, French patent FR-171,130, German patent DE-34,190, and Belgian patent BE-69,746. |
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