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Apr 01, 1923 |
One-piece, solid duralumin propeller test results reported
S. Albert Reed reports results of tests with his one-piece,
solid duralumin propeller.
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Jul 01, 1957 |
Oronite Fluid 8515
N.W. Furby, R.L. Peeler, and R.I. Stirton report that
Oronite Fluid 8515, a silicate ester fluid, is used in
hydraulic systems of the B-58 supersonic bomber and the X-
15 research vehicle built by North American.
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Aug 01, 1917 |
Patent for a new material
A composition consisiting of cork fragments and a solution
of casein
in water with borax, lime silicate or waterglass, castor
oil, and
tannic acid is patented by N.A.T.N. Feary.
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Feb 05, 1918 |
Patent for adding oleic acid to mineral oils
J.E. Southcombe and H.M. Wells receive a patent for the
addition of
oleic acid to mineral oils.
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May 24, 1917 |
Patent for aluminum-zinc-magnesium alloys
W. Guertler and W. Sander receive a patent disclosing the
high
strength obtainable by the heat treatment of wrought
aluminum-zinc-
magnesium alloys.
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Jul 19, 1928 |
Patent for modifying phenol-formaldehyde condensation products
I.G. Farben receives a patent for modifying phenol-
formaldehyde condensation products with cellulose ethers to
control hardening, as in the preparation of experimental
laminated structures.
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May 07, 1924 |
Patent for polymerized styrene
The Naugatuck Chemical Co. receives a patent for
polymerized styrene to produce three series of compounds.
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Feb 09, 1926 |
Patent obtained for Ni-Cu-Al alloy
P.D. Merica, International Nickel, obtains a patent for
nickel-copper-aluminum alloy (the last up to 17%) suitable
for steam-turbine blades.
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Dec 30, 1925 |
Patent on 3 coating airplane wing process
T.F. Tesse secures a patent on a process whereby the fabric
of airplane wings is provided with at least three
successive coatings - the intermediate coating being formed
from a cellulose acetate solution and possessing greater
flexibility and elasticity than the other two.
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Oct 20, 1926 |
Perduren produced
J. Baer produces a rubber-like product ("Perduren") by
means of the reaction between alkali sulphides and
chlorohydrocarbons.
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May 05, 1925 |
Plastic flow is determined by shear stress on glide planes
P. Rosband and E. Schmid demonstrate that plastic flow is
determined by the shear stress acting on glide planes.
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Mar 01, 1923 |
Plastic strain can be resolved into shears along crystal planes
G.I. Taylor and C.F. Elam prove that observed plastic
strains can be resolved into simple shears along crystal
planes marked by slip lines.
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Sep 20, 1978 - Sep 22, 1978 |
Poly(ethylene oxide) is a medium capable of dissolving salt to form a conductive polymer.
M.B. Armand's, J.M. Chabagno's and M. Duclot's, paper
during the Second International Meeting on Solid
Electrolytes, St Andrews, Scotland.
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1979 |
Poly-ethers as a new class of ionic conductors
M.B. Armand, J.M. Chabagno and M. Duclot publish "Poly-
ethers as solid electrolytes", in P. Vashitshta, J.N.
Mundy, G.K. Shenoy, Fast ion Transport in Solids,
Electrodes and Electrolytes, North Holland Publishers,
Amsterdam, 1979
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Nov 02, 1925 |
Polymer of vinyl chloride prepared
I. Ostromislensky prepares a polymer of vinyl chloride by
effecting the polymerization in two stages. In the first
stage a polymer is produced which is soluble in acetone and
in the second stage furthur polymerization is effected by
the action of light or heat or both.
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Aug 18, 1927 |
Polymerization of ethylene
Polymerization of ethylene is effected by C. Epner through
the action of dark or silent electric discharge at ordinary
or raised temperatures to produce a product containing both
saturated and unsaturated hydrocarbons.
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Jul 16, 1929 |
Polymerized vinyl chloride prepared
I. Ostromislensky prepares a polymerized vinyl chloride
(soluble in chlorobenzene) which is purified from the
acetone-soluble polymer to produce films of durable
flexibility from its chloro-benzene.
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Jul 1927 |
Practically pure vanadium obtained
J.W. Marden and M.N. Rich, Westinghouse, obtain practically
pure vanadium by the reduction of vanadium pentoxide with
metallic calcium in the presence of calcium chloride.
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Oct 01, 1924 |
Preparation of carbides and nitrides from the vapor phase
A.E. Van Arkel describes a process whereby carbides and
nitrides can be prepared by deposition from the vapor phase.
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Feb 20, 1917 |
Preparation of films from cellulose ethers
L. Lilienfeld describes the preparation of films from
cellulose ethyl
ether or other cellulose ethers by dissolving in alcohol or
benzene,
filtering, and then pouring or spreading the solution. The
process
may also be used to produce an artificial silk.
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