Slide Rule Slide
Datecirca 1921
Inventory Number1990-4-0035
ClassificationSlide Rule
Subject
Maker
Carl G. Barth
1860-1939
Associate Name
Frederick W. Taylor
1856-1915
Place of Origin
DimensionsWith objects 34-37
slide: 0.5 x 48.3 x 2.5 cm
slide: 0.5 x 48.3 x 2.5 cm
Material
Accessoriesprobably goes with jig 1990-4-34
Descriptionrectangular,unfinished, two pencilled markings
Curatorial RemarksProbably made in the same place as 1990-4-0043;
Probably made at the same time as 1990-4-0040.
Functioncalculating settings on shop machines (e.g. lathes)
ProvenanceThe papers and slide rules of Carl G. Barth and his son, J. Christian Barth, were transferred to the Baker Library of the Harvard Business School by J. Christian Barth in 1961.
The slide rules were transferred from Harvard Business School to the Collection of Historical Instruments in 1980.
Historical AttributesThis is part of a set of slide rules for machine shops designed by Carl G. Barth under Frederick Winslow Taylor's system of scientific management. Given the characteristics of a particular machine and a depth of cut, for example, a shop manager could quickly calculate the most efficient speed and feed settings using one of Barth's speed and feed slide rules. Other objects in the collection include slide rules for helical springs, belts, and gears, as well as jigs for making slide rules.
Carl G. Barth
Date: circa 1921
Accessories: probably goes with 1990-4-34
Object number: 1990-4-0036
Carl G. Barth
Date: circa 1921
Accessories: probably goes with 1990-4-34
Object number: 1990-4-0037
Carl G. Barth
Date: circa 1921
Accessories: probably to be used with jig 1990-4-39. possibly to be used with jigs 1990-4-38, 1990-4-39,...,1990-4-42
Object number: 1990-4-0043
Carl G. Barth
Date: circa 1921
Accessories: possibly to be used with jigs 1990-4-38, 1990-4-39,...,1990-4-42
Object number: 1990-4-0056
Carl G. Barth
Date: circa 1921
Accessories: possibly to be used with jigs 1990-4-38, 1990-4-39,...,1090-4-42
Object number: 1990-4-0087
Carl G. Barth
Date: circa 1921
Accessories: possibly to be used with jigs 1990-4-38, 1990-4-39,...,1990-4-42
Object number: 1990-4-0044
