Evening star. [volume] (Washington, D.C.) 1854-1972, 1929-07-07

Y seen in the internal structure OF mod
ern manufacturing materials brings
added safety, efficiency and stand
~ ardization to industry.
The marvellous x-ray machine, yoked for new
and novel conqueStS, has barred mysteries WHICH
have baffied man since the dawn OF mooerh
time. Apparatus which has revolutionlzeo GER
tain branches of medicine and which mas mace
vital contributions to the compendium OF sclen-
tific knowledge has been harnesSed recently 70
aid industry in its progressive forward marcn.
Smuggling no longer is the sinecure II once
was since the customs ofnclalS nave signed
the X-ray as q sterling sleuth to locate conua-
band and concealed valuables In passenger bag
gage from foreign ports. The false-pottom
trunk and the secret-duty suit case are Singing
their swan songs as . result OF the EMERGENCY
of Uncle Sans newest technical assistant.
The magical eyes of the X-ray are now EN-
Moved il, peeping at the internal structure OF
wooden and metal parts used In aircraft con.
Struction. Internal knotholes, checks, CRACKS
crevices Wormholes and similar faults in WOODS
used for vital purposes are now ferreted, ana
future tragedies of the air are prevented. De-
fects in iron steel, copper and other metal cast
inSs. forging and weddings disclose their secrets
before such ali-seeing agencies which now Ell
fectualize service and performance, predictions
heretofore impossible.
The industrial use OF the X-ray racutateS
the accurate Shadowgraphing OF such opaque
manufacturing materials as STEEL The nternal
structure of solid steel can be scrutnized 1or
air pockets, blowholeS and cotemporaneous de-
fects This wonderful machine Is now available
tn keep tab on intricate chemical reactions &C.
curing In opaque vessels and In photograpnlng
such changes as they take place. 1t Is also
employed as a reliable spy on the possible
changes which may develop In molten metals
exposed to varying degrees Of heat. This ma"
chine can even be used in speeding or retaro-
ing different chemical reactions.
THE X-ray is employed industrially in max
II ing two different types of pictures Shad-
owgraphs are pictures which show the internal
gross structure of materials and their hidden
faults The technique followed in making such
pictures is similar to that OF photographmg
the human body for diagnosis. Diffraction pat
terms, on the other hand, are pictures whose
proper interpretations leads to a knowledge OF
ultimate fine structure. These attraction pat
terms are not direct images OF the specimens
examined but represent what happens to
beam of light in passage through thin speci-
mems of that particular material.
Manufacturers potentially will save billions
In reduced fuel expenditures by the exclusive
purchase of coal of low Shale content An
X-ray examination divulges the accurate ac-
cumuIated content of shale in every coal SAM
pie tested. Such standard identification OF
the internal composition of coal eliminates the
low grade fuels, which usually are sold at
high prices, from the future industrial picture
A fuel which contains any appreciate amount
of shale is low in heat-producing efficiency,
and hence undesirable for use in manufac-
turing furnaces. Eventually we will see coal
sold to industry on the basis of X-ray exam
nations. even as apples and citrus fruits are
now marketed via State inspection in standard
grades and packs.
The great shells used in the test and target
firing of civilizations gargantuan war guns
are better than ever before in history. These
are now inspected by X-ray methods after
they loaded. If internal cavities are located,
or if inadequate amounts Of explosives are dis
covered. these previously unknown and I'M
avoidable errors can be corrected. Such de-
tective service is being translated into the
most efficient utilization of our finest ammu-
milton.
The X-ray machine is also being employed
efficaciously in finger printing modern industry,
as well as the arts and sciences. In this unique
way century-old riddles which have defied all
other attempts at solution are being answered.
A case in point is that of the modern method
of identifying fraudulent oil paintings reputed
to be the works of honorable old masters
Some of the ancient artists used paints made