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GB Patent: GB-187,000,466
Improved Adjusting Spanner
Patentee:
Robert Francis Drury (exact or similar names) - Sheffield, England

USPTO Classifications:

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Granted: Feb. 17, 1870

Patent Pictures:
R. F. Drury patent Febr. 17, 1870 - edited from Abridgments of Specifications
Espacenet patent
Report data errors or omissions to steward Stan Schulz
466 in Chronological and Descriptive Index (1870)
Description:
The provisional specification has no drawings; it describes an adjustable jaw wrench with an adjusting worm which can be removed from the frame when the adjustable jaw is removed. The term "provisional" indicates the patent process may not have been carried to completion.

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 #466 of the year 1870.

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