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DuPont Product Information Photographs
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View of ultracentrifuge
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View of ultracentrifuge
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Description
Title
View
of
ultracentrifuge
Folder
Research Tools and Apparatus
Description
The
ultracentrifuge
used
at the
Experimental
Station
to
determine
molecular
weights
of
colloidal
materials
such
as
proteins
,
cellulose
and
rubber
. The
upper
half
of the
housing
is
shown
at the
top
of the
picture
.
Observations
are
made
through
the '
window
' in the
center
of this
section
of the
housing
. The
rotor
, with
cell
at
center
top
to
hold
material
being
studied
,
is
shown
in
place
for
operation
.
Rock
quartz
windows
in
either
end
admit
light
projected
from the
rear
and
through
the
windows
.
One
of the
special
bearings
is
shown
also. The
ultracentrifuge
when
spinning
at the
rate
of
60,000
revolutions
a
minute
exerts
a
force
equal
to
250,000
times
that of
gravity
. If
gravity
pulled
as
hard
as this
machine
, a
pound
would
weigh
125
tons
.
Corporate creator
E.I. du Pont de Nemours & Company
Estimated date
1950s
?
Box
22
Original collection
DuPont Product Information Photographs
Accession number
72.341
Hagley ID
1972341_4425.tif
Rights
Access to this item is provided for educational and research purposes only. The user assumes responsibility for obtaining permission from the copyright holder to publish or distribute this image.
Publisher
Hagley
Museum
and
Library
Format
Image
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A
American Iron and Steel Institute's Keller Collection
Avon Company Collection
B
Bridgeman Images
C
Civil War Collections
Consolidation Coal Company, Annual Reports, 1940-1965
D
Dallin Aerial Survey Company, 1924-1941
David Sarnoff Library
Delaware School Auxiliary Association Photograph Collection
Demirjian Collection of DuPont Co. Packaging and Advertising
DuPont Automobiles, 1903-1912
DuPont Company Collection
DuPont Magazine, 1913-2003
DuPont Product Information Photographs
DuPont Textile Fibers Product Information
E
E.E. Hendrick Letterbook, 1899 to 1903
G
General Text Collection
Gentieu Collection of Brandywine Valley Images, 1880-1920
H
Hagley Collection Guides and Finding Aids
Hagley Digital Images
Hagley Foundation Oral History Interviews
Hagley Foundation Photographs
Hagley Reference File
Hagley Research Reports
Herbert S. Winokur, Jr., Enron Board Records collection
Hoopes Brothers and Darlington Company
J
John J. Raskob Collection
Joseph Bancroft and Sons Photograph Collection
L
Lammot du Pont, Jr. Aeronautical Collection, 1783-1950
Litchfield Collection on the History of Fatty Materials
Lukens Steel Company, 1810-1973
M
Matheson Automobile Company, 1903-1912
MCI Communications Corporation Records
MCI Photographs
Miss America Pageant Programs, 1945-1967
Morse Dry Dock Dial
N
National Association of Manufacturer's
Nations Business, 1912 to 1999
Nations Business Photograph Collection
P
P.S. du Pont's Longwood, 1840-1954
Philadelphia and Reading Coal and Iron Company, circa 1930
Postcards of Motels and Roadside Attractions, 1930-1960
Postcards of Railroad Stations, 1903-1972
Project Brandywine, Aerial Photographs
PSFS Building
Pusey and Jones Corporation, 1865-1955
S
Sperry Corporation, UNIVAC Division Photographs
T
Trade Catalogs and Pamphlets
U
Universal Design
W
W.C. Spruance Collection of Wilmington Garden Slides
Warren-Ehret Company Collection, circa 1900
Wawa, Inc., 1870-2006
Westinghouse
William du Pont Collection
William H. Seal Photograph Collection
William Pahlmann Collection
Workplace Posters in the United States
X
Xanthus Smith Collection
Z
Z. Taylor Vinson Collection
Zebley-Hoffecker Collection
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