Collection:
Juneau—Douglas City Museum
Object ID:
2003.57.048 A—D
Accession#:
2003.57
Credit Line:
Donated by the U.S. Bureau of Land Management.
Object Name:
Mill, Ball
Title:
Cylindrical Steel Ball Mill with Assorted Milling Balls
Date:
1950
Description:
A — Painted dark gray steel cylindrical bass mill.
B — Lid.
C — Securing bar.
D — 45 assorted steel milling balls.
"U.S.B.M. / 20993" hand painted on base. "74s / " written on side. Red rubber gasket in lid.
Canister with lid: 9.5 inches by 10 inches by 10 inches.
Mill balls:
Largest — 1 is 1.875 inches diameter.
Large — 11 are 1.375 inches diameter.
Medium — 10 are 1.25 inches diameter.
Small — 23 are 1 inch diameter.
B — Lid.
C — Securing bar.
D — 45 assorted steel milling balls.
"U.S.B.M. / 20993" hand painted on base. "74s / " written on side. Red rubber gasket in lid.
Canister with lid: 9.5 inches by 10 inches by 10 inches.
Mill balls:
Largest — 1 is 1.875 inches diameter.
Large — 11 are 1.375 inches diameter.
Medium — 10 are 1.25 inches diameter.
Small — 23 are 1 inch diameter.
Notes:
See 2003.57.001
Ore laboratory.
See 2004.07 for Tyler Sieve info.
Blue print drawings of a crusher drum assembly are in the document file.
Ore laboratory.
See 2004.07 for Tyler Sieve info.
Blue print drawings of a crusher drum assembly are in the document file.
Search Terms:
History
Government
Federal
Geological
T&E
Mining
Government
Federal
Geological
T&E
Mining
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Cylindrical Steel Ball Mill w/
Cylindrical Steel Ball Mill w/
Cylindrical Steel Ball Mill w/
Cylindrical Steel Ball Mill w/