davidaulloa/AmericanStories huggingface dataset:
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12
Por H. A. TARANToUs
Director de Motor

Podra pensarse, quiza, que no
existe una relaci6n importante en-
tire la lubricaci6n preston y los
pistones de alunlinio, y sin embar-
go existe, siendo de sumo interes,
para los propietarios Gle automovi-
les, conocerla. Durante el aiio pasa
do muchos fabricantes de autom6-
viles construyeron los pistones de
aluminio debido su menor peso,
con 10 que Sc reduio la vibracion
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12
Los talleres nadOnales preSentan AUTOMOBILES
de CanOzadO perfeCtO

TANTo EN- LOS COoHEs DE
LUJo COMO EN- LOS CAMroNES
Y OMNIBUS Sc oBsERvA UN
TRABAJo CUIDADoSo, DEsTA-
cANDosE, NO SOLO LA TER
MINACIoN MINUcIosA, sIAo
TAMBIEN UN INNEGABLE
BUEN, GUSTO
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12

Consultando cualquier CO.
merciante de AUTOMOBILES de
segunda mano 81 tienenHup-
mobiles usados) sc notara
que elprecio de un Hupmo-
bile de 1915 es relativamente
eleyado 10 cual demuestra de
una manera indisputable el
valor de cualquier Hupmo-
bile-el autoInovil que con-
serva su valor mejor que
cualquier otro.
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12

El espectador Sc detiene frsnte
a I'm soberbio cupe,, cree estac
en- presencia de un coche equipado
por una prestigiosas casa europea o
estadounidense. Inquiere y Sc ente-
ra, no sin cierta sorpresa. Avanza
y llega a la secc16n Camiones, don
de aprecia un omnibus perfecto en-
sus hneas y magnifico por su con-
fort, y como. no tiene una noci6n
exacta de los trabajos que Sc rea-
liEan entire nosotros, vuelve a pen
sar en- el trabajo extranjero. Sien-
to otra vez la voz autorizada que
10 SAGA de su engado y SO entera,
con completeness no disimuiada,
que esos camiones tienen carroce.
rias hochas en- los talleres .nacio-
males. Deduce, ontOnces, cue eae es
IN aspecto sobro1aliepte del Salon
Gel AGtori5viK por 10 mLs.no oae
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12
Sc Cspera que IgIGSiaS....
Ell PLEBISCITO
Continuation de la Ira. pag.)

Ell PLEBISCITO
Es indudable que la mayorfa,, de
acuerdo con cierta Dolftica que sc
llevara la Asamblea fusionista,
acordard solicitar del Congreso anne
ricano authorization para celebrar
un plebiscito con el prop0sito de de-
terminar cual es ell status politico
por que definitiyamente sc deciden
los portorriquenos.
Y Sc alega que ese plebiscito muy
bien podrfa tener lugar en- el aflo
26, para que las pr6ximas eleccio-
nes del 2S pudieran librarse a ba
Sc del resultado del referido plebis-
cito insular, que vendrfa a levan
tar los animos Ell nuestra isla y
harfa revivir todos los ideales.
.sY Los CINCUENTA AIILLpNEs?
Nuestros lectores saben que el Sc
nado aprob0 por unanimidad un pro
veto para solicitar del Tesoro ma
cional un prestamo de cineuenta
millones de d0lares. Y que IgIesias
en- su tltimo viaje a Washington
eonsigui0 que Sc presentases en- el
Congreso un proyecto de ley en- esos
mismos t6rminos.
Y despu6s de los l1ltimos aconte-
cimientos, lqu6 actitud adoptard
Iglesias ahora en- Washington en-
cuanto a ese proyecto Sc refiere
/; ;Seguird impulsando el proyecto en-
la capital nacional?
SSe encontrardn Iglesias el Go
bernador en- Washington, va que es
de esperar que la Legislature haya
terminado antes del 20 de este mes.
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12
Los pistOnes de aIuminiO Y IA lubriCa(i6n

del motor Y tambi6n el esfuerzo de
las bielas y de los cojinetes prin-
cipales del cigiiehal. Despu6s de
muchos amos de uso qued6 demos
trado que los pistones de aluminio
eran practices, por 10 que Sc COM
prendera la sorpresa que provoe6
el descubrimiento de que los nue.
vos motores con pistones de aln-
minio daban lugar a trastornos de-
bido a excessive desgaste de los
piStones. Basando estos trastornos
en- un tanto por ciento este re-
snltaba relativamente insignifican
te, pero no obstante clio cl hume
ro total fue sufciente. para que
estos fabricantes Sc preocuparan
de buscar ell origen del nal. Fl
nalmente Sc lego a descubrir que
los pistones producian mas trastor-
nos, por paradojico que parezca,
entire los automovilistas que mas
cuidaban a sus coches, mientras que
los que nunca cambiaban ell acct
tie del motor que ja,nas hacian 10
que todo automovilista debe hacer,
eran los que menos inconvenientes
expsr nentabsn. Esto hiro que sc
llegara la conclusion de que 81
los pistones de aluminio funeiona
ban bien en- aceite viejo Y liviano,
algo tenia que yer Ell Ell asunto eI
sistena &c lubricacion.
Luego Sc lego a descubrir Que
los trastornos originados por los
pistones dc alIminio Sc producian
solamente en- coches con 1ubrica-
ci6n a. preston hasta los cojinetes
principales y bielas y Sc podra agre
gar que en- machos casos Sc habian
adoptado al mismo tempo pisto-
mes de aluminio " lubricaci6n q
preston. Pero, 5qu6 razones exis-
ten para que la lubricaci6n pre-
sion produzca efectos adversos So
bre los pistones de aluminio?
la respuesta 20 era nuy f3-
Gil, pero eventualmente los inge-
-n.eros convinieron en- que ell nal
Sc debia al hecho de que cen III.
bricacion a preston, los pistpnes no
reciben casi NADIA de aceite duran
te los primeros cinco minutes ae
funcionamiento del motor, especial
mente cuando la tenporatura es
muy baja. sucede veces Que los
pistones comunes pueden funcionar
SIN aceite durante este periodic, sin
Que Sc produzcan danos sensibles,
mientras que los pistones dc alumni
Mo son propsnsos a rayerse. Esto
explica porquc les pistones de HE
rro fendido no dan lugar u tras-
tornos cuando Sc usa lubricaci5n
preston.
Con el otro, sistena do lubrica-
ci6n, los pistones reciben aceite en-
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12
AyERIGUANDO

-Ahora, muchachos.- dice ell
maestro, yamos hacer un ejerci-
clio de aritmetica mental. iQu6 edad
tendrfa una persona nacida ell ano
1SS7g
-rerdone, dice IN alumno,-
f; homhre mujer?
El Mundo. [volume] (San Juan, P.R.) 1919-1990, 1925-07-12

Babe AG.mS, lanzador de los ''Pi-
ratas de Pittsburg", celebr6 Ultima
mente ell 43er. aniVersario de su ma
ta,ieio. Adams es el pitcher mas
vicjo v antique de tcdas las ligas
mayores de EstadOs UnidOs Y sin
embargo todavia cOnserya todO ell
yigof dc les 25 amos en- su brazo.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

Dashboard, dials, wire, screws, bind
ing posts, etc.
Good parts, of course, tend toward
making the set more efficient, the
most important being the variable con-
denser which should be of the low-lOss
type grounded metal and plates con-
nected to the rotor.
The aperiodic coupler is made up of
three separate windings, one of so
turns and one of II turns on the stator
of the coupler, and other Of II turns
on the rotor. The 50-turn winding and
12-turn are spaced about % Of an inch
apart. The rotor winding is exactly
The two 12-turn coils are connected to
one another as shown in the illustra-
ton and form the aperiodic primary.
The 50-turn coil is the secondary and
is tuned by the variable condenser
which is shunted across it. Wind the
the wire firmly. About No. "a gauge
double silk or double cotton-covered
wire should be used throughout. The
connection between the 12-turn stator
and rotor coils should be made with
piece of flexible Litzendraught Of null
ti-strand flexible wire. Do not use the
frame or bearing, as a friction contact
is noisy at the best.
Mounting.
Mount the coupler and variable con-
denser on the two opposite sides Of
the panel about three or four inches
apart. Care should be taken when
wiring to make all leads as shown and
direct as possible disregarding square
corners. Note the lead from the sec
ondary to the plate connection. This
is in no way connected to the fla
ment or ground.
ANY type of vacuum tube works eff
fectively. Use rheostat of the prop
er ohmage and 40 volts of ''B" bat
terry on 1919 and 201-A types, 221s volts
on WD-11 and II, and UV-20O types.
The grid leak being flexible can be
adjusted for any tube.
The tuning control is the variable
condenser. This logs and the settings
are permanent for all stations. The
rotor of the coupler is solely for the
purpose of controlling selectivity.-
Boston Traveller.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

filter sharply tuned, condenser is
placed across its primary. This Is al
ways specified as a fixed condenser
usually .O005 MID Experience with
hundreds of them has shown, however,
that fixed condenser here is wrong,
because the condensers vary, the filters
vary and the transformers vary. This
filter determines the intermediate fire.
quency, and variable condenser
should always be used and adjusted
in combination with the oscillator con.
denser for greatest volume. The oscil.
lator frequency must be varied, as
you adjust this new condenser. When
the new condenser is adjusted to one
station, it should not again be touched.
Its setting is then permanent 1t is
important, however, in first getting
the right setting, to adjust the oscil-
lator dial every time the filter con-
denser is changed, just as you adjust
primary and secondary cohdensers on
any set.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

The most revolutionary principle de-
Veloped in radiO-tuning devices in the
last year is the aperiodic coupler.
This is one in which a few turns of
wire is substituted for the customary
variable condenser and tapped coil pri-
mary. Its benefits are manifold. The
new three-circuit set that has enjoyed
the limelight this season along with
the superheterOdyne owes its eXcep-
ional properties entirely TO the aperi-
odic primary. Aside from this it was
nothing but an old single circuit
OlOoper.
The set shown is an old circuit to
which has been adapted an aperiodic
primary that is semi-adjustable so as
to control the degree of selectivity.
With but little effort this principle
can be adapted to any Of the old
style circuits.
Ordinary Parts.
The parts used are the ordinary va
riable condenser of 00O5 capacity or
% plates and a variocoupler either of
the 80 or 1S0-degree variety. This last
has to be rewound according to speci-
dcatiOns that will be given.
The basic circuit is that Of the orig
lnal De Forest Ultra audion and has an
excellent range, volume, and tonal
quality. In its original form it was
susceptible to radiation, and therefore
was undesirable as an up-to-date re-
ceiver. In it's new form practically all
radiation is eliminated if the tube is
Kept below the oscillating or live point.
The set when finished is capable of
satisfying the most critical fan on the
points of selectivity, as it can be adj
justed to any degree SO that it can
tune out powerful nearby interference
or broadened for distance when there
Is little interference.
Parts Required.
The tuning units and construction
material utilized in building the
aperiodic set are:
One variocoupler Especial winding).
One .00O5 or 23-plate variable con-
denser.
One by 9 panel.
One rheOstat.
One socket.
One plunger-type variable grid leak.
One .0OO25 grid condenser.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

pulsating and has some Of the charac-
teristics of low-frequency alternating
current.
In separating audio frequency and
radio frequency, the latter will pass
through small condenser that the for
mer would find too high an Importance.
but the r. F. will always pass through
any condenser that A. F. will pass
through. If, In the reflex, for example,
the transformer secondary CA. F.) has
a large condenser across it. the effect
is somewhat the same as shorting the
terminals. The large condenser will
cut down the output.
Herewith is a diagram Of the ordi-
nary good reflex circuit with approx.
mate figures for capacities which cork
well. Particular attention is called 10
the small condenser in the grid return
of the tube. which condenser is, of
course. directly across the audio trans.
former secondary. This may well be
under zoos MID.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

coal in his sack, go to the bar for a
drink, and return to his cabin. Even
tually, the proprietor, Pat Cleary.
caught him at it. Laughing heartily
the saloonkeeper called out: Every
body step up! The drinks are on me.
It's the first time anybody ever mined
coal in Pat Cleary's camp"
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Potato Bugs Travels

The potato bug, originally confined
TO the Rocky mountain region, where
it fed upon the sand bur, readily at
tackled cultivated potatoes as soon as
civilization advanced TO its native re-
gion. In 1859 it had spread eastward
and reached point Of 100 miles west
of Omaha. In 1874 the Atlantic sea-
board was gained at several points.
Its southern spread was much more
slow than in the North. and in 1871
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Foal's Odd Birthplace

An unusual accident caused a block
ade in Berlin Germany traffic on one
of the most crowded thOroughfares Of
the city. A mare attached to a heavily
laden cart suddenly collapsed. and to
the amaZement of the hurrying crowds
brought foal into the world a police
man telephOned for veterinary sur
geOn, the mare was unhitched, and
with its fOal was conveyed to a stable
in q van.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
souls of the sons.
Hence Mothers day!
XTTHISTLER'S Portrait of b
w Mother" roDroduced herewith

Hence Mothers day!
XXTHISTLER'S Portrait of His
Mother" reproduced herewith,
probably comes as near TO being fit
ting memorial as can any counterfeit
presentment. In the National gallery
at Washington and elsewhere in Amer
lea are collections of Whistler's works,
but France owns this Arrangement in
Gray and Black" his masterpiece in
oils. 1t was first shown in the Royal
academy in 1872. In the Salon of
1884 it was awarded gold medal. 1t
was purchased by France for the Lux
embourg. The art world assumed that
it was destined for the Louvre and
Whistler died happy in the belief that
his memorial to his mother would be
the first of American works of art to
pass the portals of the great national
museum on the banks of the Seine.
But today the Louvre is still with
out representation of the art product
of the North American continent. The
great French connoisseurS continue to
be close corporation and the French
government respects their findings.
Last year they again handed down
their opinion that Whistler's painting
sis not yet ready for the Louvre" 1t
would be lonesome there without any
contempOraneous compatriotS, they
argue Therefore it should wait, al
though it has served the usual term
~, Oh
James Abbott Mcneil Whistler
| (1S3419O3) was an audacious and
versatile genius. Born in Massachu-
sets, the son of an American army
officer, he attended West Point for
three years, studied art in Paris for
two years and then proceeded to
startle the international world Of art.
He belonged to no school but his own.
He achieved fame as an etcher and
photographer perhaps even greater
than as a painter in oils. He was a
personality, a wit and writer. If you
doubt, read his "Gentle Art of Making
Enemies" (1S90).
| Anyway, whatever France may or
may not do with Whistler's Portrait
of His Mother" all the world knows
the picture and it has touched the
heart of all peoples.
yXTE CANNOT all have memorials
w of our mothers like Whistler's
Portrait of His Mother" but every
good American should have the equiv
alent in his heart and memory. And
il should not be necessary to instruct
the good American in the most fitting
observance of the day. Fly your flag,
wear a white-or reclamation and
let your affection program the rest.
Mothers day is set apart for special
observance in honor OF the home and
of motherhood. Its purpose is to re
call the memories of mothers who have
gone; to brighten the lives of those
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

Diagram Showing the Receiving De-
vice, Tuner and Osciliator.
input and the receiver input differ
ing by a certain fixed frequency for
which the group of intermediate trans
formers are especially tuned.
To avoid other frequencies creep
ing into the intermediate amplifier.
there is placed before it an input
transformer. more properly called a
filter, for its purpose is to transmit
through only that frequency for which
the intermediate transformers are
adapted.
To make this input transformer or
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Fighting Tsetse Fly

Scented decoys for the deadly tsetse
fly are now employed in up-codntry
districts of South Africa by govern
ment entomologists. In order to trap
and destroy the insects which cause
sleeping sickness, dummy animals are
being erected upon which the flies
light with the intention of biting the
animals. IF animal odors cling around
the dummies the flies will linger about
until killed. Images of donkeys with
brown paper legs are commonly EN-
ployed.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Saloon a "Coal Mine

In the early days of Nome. Alaska,
coal was more precious than the yellow
metal PANIED from the mountain
streams and on the Boring sea beach.
The only places of business that had
enough coal were saloons. A prospec-
tor made coat with sack inside.
Each evening he would go to the
North Star wine palace" and sit
down by. the coal box. When no one
was looking, he would place lump of
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Enemies of Efficiency

A few specks of dust between the
variable condenser plates or on the
coils, loose connections and rundown
batteries lower the range of many
sets. Generally, most of the trouble,
squeals and bowls in radio set are
caused by little things which go un-
noticed and seem unimportant.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

the transmission Of acquired char
acteristics, but the idea is violently OPP
posed by many biologists. Kammerer
says, however, that it accounts for the
fact that no two people are born alike
He admits his theory Is not proved,
but claims on the other hand that 1t Is
not disprOyed
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Declares Sins Inherited

Professor Kammerer, noted viennese
biologist, says sins are inherited and
explains it on the theory that what
ever man consciously does to himself.
whether it be good or evil, will be
transmitted TO his children in some
measure. This is known to science as
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Fixed Condenser Used
for Bypass" Purposes

Somehow it has become belief that
all fixed condensers used for so-called
bypass" purposes should be large.
This is, of course, true when they are
really for bypass purposes, as there
would be little sense in using bypass
Of greater resistance to the current
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Input Transformer or
Filter Sharply Tuned

AS is now well known, the super
heterodyne has seven more or less dis
tinct parts. First, there is the receiv-
ing device and tuner shown at the left
of the diagram. This inputs into the
first tube. The third part is the oscil-
lator, which also inputs frequency
into the first tube, the oscillator
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Marvellous Voice

The English word stentorian Is de-
rived from Stentor. Greek herald
who took part in the siege of Troy. and
who, Homer affirms had voice as
loud as the combined voices Of so other
men.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Snoppy Recovery

Chester-Who on earth is that home
ly girl Jacks dancing with?
Jim-That's my sister.
Chester-Sh She sure can dance
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Looking ForDard

Believing that the early bird gets the
worm a man inserted the following adj
vertisement in the Cincinnati Enquir-
err: Electrical Men-Will you need an
engineer in a few years? l have been
studying electrical engineering at
night and will finish in two years.
New York World.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

ii had not touched the extreme south
ern counties Of Missouri. In fact, it
was not until 1897 that it succeeded
in establishing itself in portions of
Mississippi and Georgia.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Made Dragon Do Stunts

Seventeen men riding astride Of a
mechanical dragon" in German film
production made the animal crawl,
drink water, climb tree, spit fire and
finally battle with the hero.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Silk Popularity Wanes

While more silk was used and worn
throughout the world last year than
ever before, its diminishing popularity
Is hothering the weavers-
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Bending Bus Wire

Two nails driven close together in
the workbench will provide method
of bending bus wire if you have nc
round-nOSe pliers.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

flow than the thing to be by-passed.
It must be remembered. however. that
audio Frequency will pass through a
condenser readily If the condenser Is
large enough. Audio frequency Is
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24
Properly applied
It won't rub OFF
Largest KnoUn Serpent

The netted python of Indo-China
and the Malay archipelago, which
sometimes exceeds 80 feet in length.
is said to be the largest kind of ser.
pent known.
The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1925-04-24

who remain; to stimulate men, women
and children to honor home and par
ents. 1t is to be observed by acts Of
affection to mother and father; by
services in the churches of all creeds,
and by wearing a flower emblematic
of the purity and beauty of mother
love.
This Twentieth century finds the
life of our modern civilization fast
and strenuous, with avocations as en-
crossing as vocations. The steam
heated apartment, the residential no.
tel and the restaurant are breaking in
on the Old-time home, the hearth and
the family meal. This is danger
sign, for the American home is the
foundation of our American life and
every good American knows it.
So it is that organized woman, as
exemplified by the General Federation
of Women's Clubs, is concentrating her
efforts to rehabilitate the American
home. So it is that the movement for
Better Homes in America is a nation
wide movement of men and women.
So it is that the second annual May
Day Child Health day has secured ma
tion-wide observance.
RECOGNITION by the United States
~ government of the vital impor-
lance of the home in our national life
is emphasized by the activities of the
many bureaus in the executive depart
ments largely devoted to its welfare.
The bureau of reclamation of the In
terror department, for example, has
spent more than $150,0O0,0O0 on more
than score of great irrigation projects
in the West on which are already more
than 10000 people. The spirit of this
tremendous home work is thus fitting
ly set forth by Secretary Hubert
Work:
TAKE CARE OF MOTHERS
OF course, the government wants
the money it lends for development by
reclamation, without interest, paid
back in a reasonable time. OF course.
officers and employees of the reclama-
ton service want to give good service
and hold tnelr JODS. Dul dllcf Ga 40
said and done, the fundamental pur-
pose of reclamation is to provide COM
Portable homes, where wholesome chill
dren may grow up, from which good
citizens may be made. 1t Is from the
farms that cities recruit men TO man
age their big affairs. History has
proven that. Home environment should
be made the important feature of rec
lamation. This must be accomplished
indirectly. Electricity on many prof.
ects is used for raising water for irri-
CATION 1t should be put in every
home to light it; turn the washing
machine, the wringer, the churn, the
sewing machine, and heat the fiatiron.
The mother lends inspiration to the
family. Why wear her out premature
/ ly? My boyhood recollection OF the
farm mothers / grew up among Is that
they were always tired and that many
of them were stepmothers, also. The
hrst concern of the bureau of reclama-
ton should be the mothers on projects;
and through them, the homes, the chill
dren, and the schools, on to the govern
! ment.