GB Patent: GB-189,017,644
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| Improvements in Adjustable Spanners
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Patentees:
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| Charles Albert Miller (exact or similar names) - Birmingham, England |
| Frederick John Miller (exact or similar names) - Birmingham, England |
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Patent Dates:
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| Applied: |
Nov. 04, 1890 |
| Granted: |
Nov. 04, 1890 |
| Antedated: |
Nov. 04, 1890 |
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Patent Pictures:
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British Patent GB189017644 - edited from "Abridgments" |
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Stan Schulz
BELL ROCK spanners (1890 / 1891 ad - edited) - FLICKR
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Description: |
| Entry based on known example, early ads, entry in "Abridgments of Specifications," etc. Screw adjust bicycle / pocket wrench; known examples marked "BELL ROCK", etc.
The patent describes describes a construction using a compression spring. In one known example, the adjusting screw is retained by a set screw, as noted in an alternative description.
See also Ron Geesin's entries for H. MILLER & CO. BELL ROCK in the two volumes of THE ADJUSTABLE SPANNER. |
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