Skip to main content

Add or remove other collections to your search:



Narrow your search by:



You've searched: All Collections

  • Description: methods
(41 results)



Display: 20

    • View of cross section

    •  
    • This diagram shows a typical surface cross section as it might appear, magnified many thousands of times, under an electron microscope. The surface might be that of a fiber, or of a painted wall, or even wall paper. In Line No. 1, rough soil...
    • Simplifying the job

    •  
    • Planned work means easier work in home or plant. Methods engineers' studies of the job of Charley Chrustowski, DuPont Chambers Works inspector, eliminated 70% of the motions he used to employ in drum labeling. Stretching, turning and walking were...
    • Testing tires

    •  
    • Before and after testing, tires are completely dissected to determine strength characteristics and cord performance. Studies are carefully planned to give accurate performance data for individual plies and critical points of stress of body of tire....
    • Explosive rivets

    •  
    • DuPont explosive rivet, improved to fit need of assembly line methods of mass production, is set with a DuPont riveting iron. Electrically heated iron fires tiny explosive charge in rivet, expanding it to make tight fastening and eliminating need...
    • Testing tires

    •  
    • An instron tester, capable of exerting force of 10,000 pounds, is used to determine carcass strength and record exact force required to push plunger through wall of fully inflated tired. Equipment is part of facilities for study of processing...
    • Explosive rivets

    •  
    • DuPont explosive rivet, improved to fit need of assembly line methods of mass production, is set with a DuPont riveting iron. Electrically heated iron fires tiny explosive charge in rivet, expanding it to make tight fastening and eliminating need...
    • Harvest-Italy

    •  
    • A gallery of contrasts-striking photos illustrates the wide difference between primitive methods and modern. Women harvesting wheat near Orvieto in Italy one of them using a cycle the other gathering up and binding the sheaves. This method is in...
    • Uses of Butacite

    •  
    • A step in the manufacture of Butacite polyvinyl butyral resin, which is used as the inner layer of laminated safety glass for automobiles. Here Butacite is being cut to widths ordered by the customer to fit his requirements for windshields and...
    • DuPont Magazine [February 1923]

    • Periodicals; Chemical industry; Explosives; Dynamite; Firearms industry; Automobile industry; Paint industry;
    • Table of Contents: Our oldest active customer, Uncle Sam; Use of dynamite in drainage projects; Pyralin's unique use in the movies; Ancient, medieval and modern finishes; Quarrying stone by mining methods; Baby carriages, human and otherwise;...
    • Give Us Your Criticism

    • Posters; Work ethic; Criticism;
    • Text from image: "Give Us Your Criticism -- How can we improve our methods? Is there a better way? Is there a short cut or a saving that you can suggest? We always welcome constructive criticism. Give Us the Benefit of Your Experience"
    • Shrinking the felt

    •  
    • Shrinking by chemical action or heat is final step in production of non-woven felt of synthetic fibers in process developed through DuPont research. Wide batt enters machine at right, emerges as narrower strip of felt at left. Density, hardness and...
    • Uses of Butacite

    •  
    • Butacite' polyvinyl butyral resin is used as inner layer of safety glass. Sheeting manufactured from this resin is of excellent clarity and color and is particularly resistant to the deteriorating influences of prolonged exposure to heat, light and...
    • Uses of Butacite

    •  
    • This is another view of the manufacture of continuous sheeting of Butacite polyvinyl acetal resin, which is used as interlayer in modern laminated safety glass. As it passes onto a wind up roll, as shown in this picture, its unusual flexibility is...
    • DuPont Magazine [September 1928]

    • Periodicals; Chemical industry; Plastics industry; Explosives; Dynamite; Ammunition; Mining; Quarrying; Blasting; Textile industry; Automobile industry;
    • Table of Contents: Duplate, a new improved non-shatterable glass; Modern methods of quarrying Indiana Oolitic limestone; Fabrikoid modernized for artist decorators; More hydroelectric power for North Carolina; Draining muck land; Better ventilation...
    • DuPont Magazine [July 1929]

    • Periodicals; Chemical industry; Explosives; Dynamite; Paint industry; Plastics industry; Textile industry; Automobile industry;
    • Table of Contents: Research activities; Kentucky's black rock; A classic of the air; Parlor, bedroom, and bath; Books and looks; The Tontine shade roller; Gypsum in the Empire State; What of the years to come; Cellophane in the home; Evolution of...
    • Health

    •  
    • Aim ray at absenteeism: "Industrial Ultraviolet Ray Solarium", aimed at reducing absenteeism in war plants, is official name for the merry-go-round system of artificial sunlight irradiation (above) introduced by the Hanovia Chemical & Mfg. Co.,...

QuickView

Display a larger image and more item information when the pointer pauses over a thumbnail
 

Layout options:

Select the collections to add or remove from your search
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
 
OK
Select the collections to add or remove from your search
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
 
OK