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GB Patent: GB-188,502,260
Adjustable Locking Spanner
W. G. Crosskey - Beckenham, England
J. C. Robertson - Beckenham, England

USPTO Classifications:

Tool Categories:
wrenches : wrench components : wrench adjustment locks


Not known to have been produced

none listed

Patent Dates:
Granted: Feb. 19, 1885

Patent Pictures:
W. G. Crosskey and J. C. Robertson patent registered Feb. 19, 1885 - edited from "Abridgments of Specifications"
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A self-adjusting spanner that appears to correspond to "SCHWARTZKOPFF'S ADJUSTING SPANNER" (patent GB-1863000945) has a sliding latch on the handle that can engage one of a series of notches on the extended "skirt" of the head. This patent apparently was subsequently abandoned.

Note: Early British patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent # (with "leading zeros" interposed to make the number total nine digits). This patent is #2,260 of the year 1885.

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