Collection:
Juneau—Douglas City Museum
Object ID:
2007.22.148AB
Accession#:
2007.22
Credit Line:
Transferred from the U.S. Bureau of Land Management.
Object Name:
Rule, Slide
Title:
Slide Rule with Case
Year Range from:
1950
Year Range to:
1996
Description:
Slide Rule. Log Log Duplex Trig slide rule.
A. Slide rule with three parallel scales. The scale in the center moves side to side. Object has scales on both sides. There is also a clear plastic site gage with a black line down the center that slides over all three parallel scales. The three scale bars are held together by L—shaped metal brackets riveted to the two outside bars. The inside bar slides freely inside the two outside bars. On the side is printed in green lettering: "PATS. PEND. MADE IN U.S.A. 68 1318 LOG LOG DUPLEX TRIG R COPYRIGHT 1947 BY KEUFFEL 7 ESSER CO."
B. Green leather carrying case to hold the slide rule. On front is printed in black magic marker: "Art Kimball." There is a flap over the open end of the case. This flap is riveted to the back of the case proper. A tab is designed to slip into a vertical holder that is riveted to the front of the case, thereby keeping the silde rule from falling out. Inside the flap is printed in black ink: "BuMines, Kimball."
A. Slide rule with three parallel scales. The scale in the center moves side to side. Object has scales on both sides. There is also a clear plastic site gage with a black line down the center that slides over all three parallel scales. The three scale bars are held together by L—shaped metal brackets riveted to the two outside bars. The inside bar slides freely inside the two outside bars. On the side is printed in green lettering: "PATS. PEND. MADE IN U.S.A. 68 1318 LOG LOG DUPLEX TRIG R COPYRIGHT 1947 BY KEUFFEL 7 ESSER CO."
B. Green leather carrying case to hold the slide rule. On front is printed in black magic marker: "Art Kimball." There is a flap over the open end of the case. This flap is riveted to the back of the case proper. A tab is designed to slip into a vertical holder that is riveted to the front of the case, thereby keeping the silde rule from falling out. Inside the flap is printed in black ink: "BuMines, Kimball."
People:
Kimball, Art
Search Terms:
JMIC
T&E
Surveying
Drafting
Drawing
Mining
T&E
Surveying
Drafting
Drawing
Mining
Click to Enlarge
Slide Rule
Slide Rule