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US Patent: 1,168,844
Wrench
Patentee:
John J. Bartenstein (exact or similar names) - Cleveland, OH

USPTO Classifications:
192/105CE, 81/131, 81/146, 81/176.1

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

Assignees:
Vlchek Tool Co. - Cleveland, OH

Manufacturer:
Vlchek Tool Co. - Cleveland, OH

Witnesses:
L. F. Griswold
E. Worthington
R. B. Hopper
L. G. Hopper

Patent Dates:
Applied: May 31, 1913
Granted: Jan. 18, 1916

Patent Pictures:
John J. Bartenstein Patent January 18, 1916. Vlchek No. 2 spanner from Vernon Nail collection.
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Description:
The hook spanner could be produced with a square hook jaw for rectangular nut, or a round peg jaw for circular "nuts" with round holes in the periphery (like water pump packing nuts, bearing race adjustments, etc.) It uses a spring and rack teeth for quick adjustment.

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