non-magnetic monkey wrench
Datecirca 1948
Inventory Number2003-1-0304b
ClassificationWrench
Subject
User
Harvard Cyclotron Laboratory
1937 - 2002
Cultural Region
Dimensions35.5 x 3.8 x 8.5 cm (14 x 1 1/2 x 3 3/8 in.)
Material
DescriptionThis monkey wrench is made of a beryllium copper alloy and is cast. The handle is marked with raised letters "MADE IN USA" and "AMPCO" in a diamond. Below the company logo the word "BERYLLIUM" is stamped. On the other side of the handle, raised letters follow a diamond and read "W1148." The upper jaw shaft reads "W1148B" and is followed by a diamond. These are product catalogue numbers.
The metal is oily and dirty. A line of red paint is under the lower jaw and on the upper jaw.
The metal is oily and dirty. A line of red paint is under the lower jaw and on the upper jaw.
In Collection(s)
Signedon handle: AMPCO
Inscribedon handle: AMPCO
on handle: MADE IN USA
on handle: W1148
on handle: W1148B
FunctionNon-magnetic safety tools protect scientific and industrial workers from hazards of using tools in high magnetic fields.
Historical AttributesThis non-magnetic monkey wrench was a safety tool employed in the "vault" of the Harvard Cyclotron Laboratory very near to the dees of the cyclotron. It was made of a beryllium copper alloy.
Carl Zeiss, Optische Werkstätte, Jena
Date: circa 1886
Accessories:
Object number: 1084c
Date: late 19th-early 20th Century
Object number: RS0168
Date: 1890-1930
Object number: RS0470
Hammond Typewriter Company
Date: circa 1923
Accessories: four Hammond type shuttles for different type faces, each with a wooden storage box; four laminated paper rectangles with symbol placement guide; instruction book, instruction sheets, advertisements, and correspondence (in object file)
Object number: 1996-1-0373
Hugh Powell
Date: 1841
Accessories: oculars (2); objectives (3): 1/2, 1/8, 1/4 with attachable Lieberkühn; stage slide holder; stage fish plate holder; X-Y mechanical stage; fish plate; prepared slides (2); plain glass slides (2) and cover slips (2); box of cover slips; sponge; cotton bag; folding scalpel; fish plate; mount for stage forceps; fishhook; assorted hardware; case
Object number: 1164
See also/See also
