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THE 'OMAHA SUNDAY BEE: NOVEMBER 7, 1903.
CUTTING OUT T1IE RATTLE!
Maken Diligently Striving for Noise
less Driving Gear.
WHERE THE TROUBLE COMES IN
Problem Dimmers Down to On of Ac
raracr In Cnltlea" aad Flalwhlaar
Trelh A mrrlon Superiority.
No's from Rrari Is one of the mot Im
portant things to consider In the making of
julet-runnlns automobile. A transmls
lon can row be made of hard alloy mpcl
with practically nolwlss spur Roam so far
as vibration Is eoncprncd. 'Kxperlpnce In
electric machines Ion ago Indicated that
an unhardpned (car of the herring-bone
type could be made positively nols.-1-ns.
Of coursp, a sliding herring-bone gear, can
not be made.
One theory of noise In Rears Is that of
Irregular tooth pressure; when, from hIIkIU
Inaccuracy, one tocth has a pressure dif
ferent from that ot tha next succeeding
tooth, thereby setting up a varying vitia
tion and backlash. If the speed of the
gears is rapid, a complicated vibration,
amounting to a noise, Is set tip.
The shape of the transmission (change
speed gar) case has a materls! effect on
Its quiet running qualities. In one method
of cutting gears the teeth are pin nod. not
cutting too much; making every effort to
get the gears accurate. In another method
the cutting la done by a rotary cutter; ac
curacy being obtained by making a laro
diagram of the shape of the cutter ac
curately to suit the number of teeth and
pitch In eacn particular gear. This makes
a more difficult job to get an accurately
generated tooth-shape and great accuracy
between each tooth, than with the planing
process above mentioned.
Difficult to Orrrromr,
It Is difficult to overcome the distortion
of a gear In hardening. In the caae of
camshaft gears there is an action differ
ent from that of any of the other gears In
the car; an Intermittent action. There la
a diversity of opinion aa to the proper
slie, width of face, pitch and material of
camshaft gears, to best aolve the problem
of thla particular condition.
Bevel gears. It la pretty generally con
certed, run more quietly than spur gears.
One reason given Is that they have a
chance to spring away from the tooth pres
sure, v.hereas the spur gears have not
unless their shafts and bearings also spring
away.
A high grade gear, which may reason
ably be expected to stand up to Its work
for tens of thousands of miles, must be
properly designed, of the proper material,
subjected to repeated approved heat and
mechanical treatments and be accurate
not only as to tooth-form, but have a hole
of true and proper size, Its keyways, or
cc.irrspondlng members, of proper dimen
sions and uccurately located; Its blank
having been turned true and of exactly
proper diameter. To obtain quiet-running
the form of the tooth must bo laid out prop
erly, selecting from the different forms
ndvocated by various engineers; every step
In Its manufacture and mounting made
carefully and with precision.
There Is a different of opinion as to
whether relatively large or small genr
teeth run more quietly; that Is, teeth of
luiga or small pitch. One argument In
favor of the fine teeth as asr.tnst the
coarse, Is that they have a greater number
Why (E IFartSier?
Below I offer you a list
of the best cars to be had
in the West. Look at my
line. You will find a car
to suit you.
Let me demonstrate
their grace and power.
Empire, 20-H. F.t $800
Marmon, 40 H. P., $2,659
Haltaday, 28 11. P., $1,230
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ii
Harmon Snborban, 4C-II P
$2,650
Maday, 30 n. P., $1,509
of teeth, or points of contact, In mesh at
one time, which distributes the load and
prevents clatter.
Prtvar? Caaee.
toothform, but can also be caused by put
ting a pair of gears In mesh too closely.
With a "huntlnr Innlh"
that is, with an odd tooth In one gear
(the number of teeth In one gear not be
ing a multiple of the number of teeth In
Its mate) the gears may wear to a state
of comparative nolselensnesa after a while.
nowever, good gears will not show ma
terial wear In a reasonable length of
time. Running n emery and oil for a
time In assembly or test will reduce noisi
ness somewhat, but unless the teeth are
properly and accurately formed In the
first instance this will seldom obviate
the trouble entirely. Assuming that the
gears are set with a proper amount of
clearance between them, running In emery
will help very little.
The question of noise In gears comes
down to a question of accuracy, not only
In cutting and finishing, but in mounting
them In their respective places. The shafts
on which they are to run must be parallel
and be In the same plane.
Five to seven thousandths of an Inch
clearance Is about the correct amount for
spur gears. With fixed shafts a greater
amount would be of no advantage. In
automobile work It Is unnecessary to
make the gears run without any
backlash, except In the case of
valve gears. by which the valve
and Ignition apparatus must be aotuated
exactly In time. In some cases the clear
ance of various gears on an automobile Is
as much as ten or twelve thousandths of
art- Inch. It Is In matters like this, which,
as a matter of fact. Is one of the most
complex subjects In automobile engineering,
that long experience in automobile manu
facture gives the pioneer American makers
a marked advantage In their endeavor and
repeated success In producing machines,
Judged on any basis, at least the equal of
any mad. abroad. Recreation.
Standard Aato (o.'i List of 1910's.
Less than two months ago this company
began business In Omaha, handling ' the
great 8t Louis car, the Standard PI x the
National, which Mers has so often driven
to victory, and the Traveler, a new but
popular, medium priced car. In speaking
of his list, Mr. Wilcox, president Of the
company, said; "We have, I am sure, tha
best line In th. market. Nit better only
than thos. price as they are, but better
when It comes t workmanship and ma
terial than any car made. W. wish pur
chasers to compare our cars side by side
with any cars, regardless of prioe. They
have no small motors that require you to
shift gears three or four times to climb a
little hill. We have Just as good material
In our $1,10 cir as la put Into any car.
The Standard Six Is the car complete.
It has everything necessary. It Is power
ful, perfect, silent. Wheel bore, 124 Inches,
choice of tires. The National Is beyond
comparison, while In the Traveler the manu
facturers have overcome th. greatest dif
ficulty In car manufacturing that of put
ting In a motor of sufficient power to carry
th. car anywhere over any road.
The Home of the Stearns.
Th. Wallace Automobile company.
Twenty-fourth, near Farnam, has Just
made arrangements to handle the Stearna
and will have on. of the cars this week.
The Stearns Is a high olass car. 'It takes
Its place with the best ones of the country.
The Stearns people have endeavored to
build th. best car possible, regardless 'f
cost. They propose to makes the best all
of the time, and do not expect to make a
new cor every season and call it a new
model. They have no special lflo model
It Is Just th. Stearna car made all of thi
time as good as skilled men can make It.
They believe that if they build a good car
this year that It whl be good enough to
offer next season, with suoh little Improve
ments as come up from time to time. They
do not believe In. radical changes. They
only change thos. part of a car from one
season to another that aotual experience
teaches should b. changed.
Wallace la a practical mechanic' with a
good many years of aotual shop practice
and can demonstrate to buyers that tho
Stearns Is a car without, a peer.
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Vk"' JACKSON "30" G172SO .'::;
vJXlv' ' 0" r , SPECXTICATKmSi Tourng car with detaohabl. tonneau. Motor Four-cylinder. V ,4 " Zr ' S
V " y Tertical. Cylinders cast pairs with three-bearing crank shaft; 4-inch bore. 4-lnctt v 4vV -" i r-,iX S S ,
N2 ss' V;" -J-Jr- " S atroka. Valves Inclined at 45 degrees In cylinder heads and operated by overhead earn "V A'.:S v
S. "-'-Cl. shaft. Unit power plant. Clatoh Multiple disc, running In oil. IjrntUon Magneto ..ssssxjr
. and batteries, uauanslon Rull ailiotlc snrlnas. front and rear. Wheel Base 104 - '
BFZCITIOATXOHBi Tourng car with detaohabl. tonneau. Motor Four-cylinder,
ertical. Cylinders cast pairs with three-bearing crank shaft; 4-inch bore. 4-lnctt
stroke. Valves Inclined at 45 degrees In cylinder beads and operated by overhead earn
shaft. Unit power plant. Clatoh Multiple dlao, running In oil. IjrntUon Magneto
and batteries. Busuenslon Full elliptic springs, front and rear. Wheel Base 10S
Inoh.s. Wheels 3 inches. Tires 32x3 H Inch, Goodyear, Mlchelln. Morgan
Wright. Xaulpment Gas lamps and generator, oil lamps, horn. Jack and tools
FIOISJEER IMPLEMENT CO., Council Bluffs, Iowa.
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Dalladay. 45 U. P., $2,500
Dayncs Model 19. $2,000; ppt4
A U IB -ILJ M-jJ
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The Most for the Money j
Specifications of the Auburn 40-45
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MOTOR 40 to 45 h. p.' Rutenber. Four vertical cylinders cast separately.
TRANSMISSION Selective type, sliding gear, three speeda forward and reverse; direct
on high speed, 1-lnch face stub tooth gears.
CONTKOL Spark and throttle on top and within steering wheel.
IGNITION High tension magneto.
CARBURETER Float feed, Schebler.
LUBRICATION Self-contained. Splash and pump feed.
RADIATOR Cellular, with vertical tubes and fan.
PUMl' Gear driven.
BODY Straight line type; large and roomy. (
ctsni ivp nmvKv from an 1 8-eallon galvanized tank under th front seat..
STANDARD EQUIPMENT Two Bide oil lamps, two gas lamps, tail lamp, generator, robe rail, horn, tool's, magneto and batteries. Compare these specifications with any $2,600 car and
you will note that they are equal or better. A 2,5Q0 car for f 1,660 Wonderful power. Negotiates hills on high speed with ease. Call and see us and get demonstration. To
agents a proposition you can't beat. -
AgenU for the Rider-Lewis the best 91,000 made, or yet to be made. ; j ;
Onnisilisi iiLitoirrQolbfil(2 Coinmpaiimy
21G SOUTH NINETEENTH STREET, OMAHA
BRAKES Two sets; external, operated by foot pedal; Internal or emergency, operated
by band lever. Brake equalizers.
W HEEL BASE 116 inches.
TREAD 66 Inches.
CLEARANCE 11 Inches.
WHEELS Artillery type. 36 inches.
TIRES Goodrich, Quick Detachable; 36x3 or 37x4.
STEERING GEAR Worm and wheel.
FRAME Pressed steel throughout.
SPRINGS Front, semi-elliptic, 40 inches; rear, full elliptic, 38 inches.
DRIVE Shaft.
AXLES Rear, live type; front, drop "!"- beam section.
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" "J- 30 h. p. mwim ' '
! four.
V SJ cylinder.
- - - , - 110-inch S
base,
34inch
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Tlie JVIai-cwell is THE Car lor Touring
. ' 50-Dorsc Power Tonrtag Car, 31,SOO
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Fal Car Touring, 40-H. P., $1,650
Co'3Fo LOUK
STATE AGENT
1S03 Eeii ooiTi St.-
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scroll
elliptic
Bprings,
magneto
and gas
lamps,
larger
tonneau
and doors
The 1910 Maxwell is Supnor to Any Car ot 1U Class. Onr new models are J it fcecrf.ed. Call and Get a Demonstration of Their Ease and Power.
Maxwell-Briscoe Omaha Co.. L. E. Doty.Mgr, 19th Near Farnam
