For Thirty-Five Years Henry Ford, running in oil. Constant mesh selective type
a farmer's boy, has been working on the problem of a transmission, three speeds forward and one reverse. Ball
successful tractor for the farm, and, for the past fourteen bearings. Three point suspension. Splash system of
years, has devoted much time, and a vast amount of lubrication. Thermo-siphon cooling system. Gravity fuel
money, to the development of the present Fordson system. Worm and worm-wheel drive. All gearing
tractor. In the usual Ford way it grew into shape through entirely enclosed and running in oil.
constant experimentation, not atone in the workshop but
on the farm, and that he might get the experiences from What it Does as a Power Unit
various soils and conditions which face the fanner, he As a stationary power plant, for either permanent or
gradually acquired a farm numbering several thousand emergency work, the Fordson Power and Transport Unit
acres, and here the Fordson tractor, under the guidance of will deliver 18 H. P. to any machine driven through
his genius, was developed. From the records it has made shaft, belt, gears or chain. It will do this at an engine
in all parts of the civilized world, it comes the nearest to speed of 1,000 revolutions per minute. A governor can
being the all-around satisfactory tractor for the farm.. be attached where power requirements are either
This fact is strengthened in the knowledge that while intermittent or disposed to fluctuate.
350,000 tractors were on farms in the United States (Oct.
1921), there have been more than 200,000 Fordson What it Does as a Transport Unit
tractors made and sold in the past four years. When through operating a a power unit, it can be
used as a transport or haulage unit and driven under its
What It Is own power to the next job, trailing behind it at a speed of
The Fordson Power and Transport Unit is a most 6 to 12 miles per hour, over ground none too good,
economical four-cylinder, four-cycle power plant. It whatever material or equipment is desired. Two or four-
delivers power up to its capacity (18 H. P.) when and wheel trailers may be used, and even though the load is
where required. 10 to 15 tons, it will pull up a 15 per cent grade.
The unit will also transport itself and any number of
trailers carrying a total load up to 15 tons, Industrial Applications
Practically every industry can use the Fordson
Easy Operation Power and Transport Unit, because it does more work,
A boy can run and operate the Fordson Power and more economically, in a shorter time.
Transport Unit. Its simplicity makes unnecessary any Merchants use the Fordson for hauling lumber, coal,
special skill. The automobile type drive is quickly brick and other material, and for switching loaded freight
mastered, and enables the driver to turn in a 21-ft. circle. cars.
It can be adapted to turn a 14-ft. circle. Manufacturers use it for transporting trailers loaded
with stock or refuse.
Built For Constant Service, This Unit Will Deliver Cities, villages and counties build roads and parks,
its Rated Horsepower--24 Hours a Day. haul garbage wagons, clean streets and remove snow
from sidewalks and streets with the Fordson.
Low Fuel Cost Contractors have put it into service for excavating,
The fuel consumption is about one pint of kerosene hauling equipment and construction material, operating
per brake horsepower per hour; and for plowing about stationary machinery and pulling big trucks cut of
2-1/2 gals. per acre are required, depending on load and excavations.
soil conditions. The Fordson is being used a an industrial
locomotive, and with runners replacing the front wheels
General Dimensions it has supplanted horses for sledding timber over the
Overall length, 102 inches. Width 6-1/2 inches. snow.
Height 55-1/16 ins. Wheel base 63 ins. Tread of wheels On the golf course or athletic field, the Fordson pulls
49-1/2 ins. Total weight 2,562 lbs. the lawn mower, roller or other equipment necessary to
keep the ground in good condition.
The cylinder bore is 4 ins., the piston stroke 5 ins. It It Pays for Itself
has dependable magneto ignition, a multiple-disc clutch As the daily fuel cost is only about three dollars and
the interest on the investment, depreciation and upkeep D--Power transmitted through but one pair of gears
cannot exceed another dollar, or four dollars in all, it will in high and plowing speeds. This with the worm driven
readily be seen that it cannot take very long for the axle makes but two reductions between engine and
Fordson Power and Transport Unit to pay for itself-- wheels which means a comparatively low power loss and
more particularly because of the great saving effected in insures higher operating efficiency.
labor and time.
Low Initial Cost Gives compactness, simplicity, and strength in
The first cost of the Fordson and Transport Unit is construction. Reduces wear.
surprisingly low, being only about one-fifth the cost of
the average five-ton truck. Water Type Air Washer
One of the most important features of the Fordson is
Design and Construction the air washer which removes all dust and solid matter
In designing the Fordson Tractor the engineers have from the air before it enters the cylinders; thus
worked with the idea of obtaining maximum efficiency preventing excessive wear to the pistons and cylinder
with the minimum number of parts. This simplicity of walls. Also, it moistens the air in its passage through the
design and construction, together with accurate water, reducing carbonization and pre-ignition. This is a
workmanship in the making of the various parts, gives decided improvement over the dry type air washer.
the Fordson Tractor the following superior features:
A--More rigid construction. Advanced Design of Radiator
B--Elimination of frame, radiator hose, hose clamps The radiator lines up with and is bolted to the
and connections, adjusting collars for ball bearings engine; thus greatly increasing its structural strength.
and valve tappet adjustments. This also reduces possibility of water leakage and
C--Light weight eliminates the trouble connected with replacing hose,
D--Fewer parts to get out of order which clog up and deteriorate. Large water openings
E--Less parts to assemble and adjust insure better cooling.
F--Less time required to make repairs
Three Point Suspension
Motor Reduces strain on the separate units and adds to the
4-cylinder bore 4", stroke 5". Heavy duty type motor flexibility of the tractor.
designed to work at its full capacity for long continued
periods with a minimum amount of wear. Easily Maneuvered in Field
Large bearings. Because of light weight, short wheel base, small
High safety factor of all parts to insure against wear turning radius, and direct acting steering mechanism.
Starts on gasoline, operates on kerosene. Industrial Uses of the Fordson
Because of its general utility and its economy of
Clutch operation, the Fordson tractor, though primarily built for
Multiple disc operating in oil. No facings to wear the farm, has proved practical for hundreds of uses in the
out and does not require adjustments. city. It supplies fraction power for hauling and belt
power for operating machinery--it is an all-around
Transmission power plant.
Constant mesh selective type transmission
possessing these advantages: The Fordson is Being Successfully Used for:
A--Very compact design considering the number of Cable stretching Operating Ferris wheel
gear ratios obtained. This combines strength with light Concrete mixing Pile driving
weight Excavating Pulling snow plow
B--Practically eliminates possibility of stripping Freight car towing Pumping
teeth of the gears, as instead of meshing a couple of teeth Golf course maintenance Race track maintenance
as is common in some sliding gear transmission Grading Road grading
engagement is provided for all teeth by means of internal Grass cutting Rock drilling
gears constructed solely for that purpose. Hauling Rock crushing
C--Three forward speeds, one reverse. Three Hoisting Rolling
forward speeds instead of two as in the case of many Industrial locomotive Sand loading
tractors give the Fordson greater flexibility to working Land clearing Saw mill operation
conditions. Lighting plant operation Street cleaning
Machine shop operation Terracing Horses cannot be humanely worked more than eight
Moving buildings Oil well drilling hours in the heavier operations or ten in the lighter.
Fordsons are not troubled with flies, heat or hard
Fordson Service ground. Horses suffer terribly and die in appalling
There are no orphans among Ford products. numbers when hard worked on hard land in hot weather.
The Ford Motor Company never loses sight of the A Fordson can do all that horses can do, as well as
fact that every purchaser of one of their motor units has a horses can do it and belt work besides.
right to expect that the company shall always be in a It takes a few hours to make a Fordson.
position to keep them running. It takes three years' time and three years' care (some
It is this assurance that has put Ford products in a horsemen say five years) to make a work horse. At any
class by themselves. Notice how the confidence of the time in those three years the colt may die and be a total
automobile buying public in the Lincoln car returned as loss.
soon as it was known that Mr. Ford had bought it? That A Fordson eats only when it is engaged in
announcement meant that every buyer of a Lincoln car productive work.
was assured of full value by never finding himself unable Horses eat 365 days a year.
to get service on it at a reasonable price. It is the service A Fordson makes every acre of the farm a source of
that has helped to make the Fordson Tractor stand first profit.
all over the world. An eight-hone team withdraws 40 acres from the
farm's return to feed itself.
Tractor Gear Ratios
Plowing Acreage and Speed Data
The ratio of engine to rear axle is as follows: One mile equals 5,280 feet.
Low Speed 81.9 One square mile equals 27,878,400 sq. feet or 640
Intermediate (Plowing) Speed 44.5 acres.
High Speed 17.17 One furrow, 28 inches wide and 1 foot long, equals
Reverse 46.4 2-1/3 square
One acre of 28 inch furrows equals 43,560 square
The following table gives the revolutions of the rear feet divided by 2-1/3 or 18,695 feet long or about 3-1/2
wheels and worm gear per minute and the road speed in miles.
miles per hour, in low, intermediate, high and reverse To find the number of feet of furrow plowed per
gears: minute, divide 5,280 (the number of feet in one mile) by
60 (the number of minutes in one hour) which gives 88.
Low Intermediate High Reverse Then multiply 88 x 2-3/4 (the proper plowing speed for
RPM Wheels 12.23 22.49 56.36 21.56 Fordson tractors) and the quotient, 242, is the number of
RPM Worm 207.7 382.3 958.3 366.4 feet plowed per minute.
MPH Road Speed 1.53 2.81 6.93 2.69 To find plowing time for one acre, divide 18,696
(the number of feet of 28" furrow in one acre) by 242
(the number of feet of progress per minute) and the
Horse and Horseless Farming quotient 78-9/10 is the number of minutes (1 hour and 19
The harness and whiffletrees for an eight-horse team min.) required to plow one acre.
cost more than a Fordson Tractor. Yet the eight won't do To find the number of acres to be plowed in one day
more work. of ten hours, divide 600 (the number of minutes in a 10
The eight horses cost double the price of the hour day) by 78-9/10 (the number of minutes required to
Fordson, arid that at the low price of horses. plow one acre) and the quotient, 7-3/5 is the number of
Grooming eight horses once a day at 15 minutes a acres plowed in one day of ten hours.
hone takes two hours. Watering and feeding, another
hour. Harnessing and Un-harnessing, hitching up and The above data is based on a driving speed of 2-3/4
unhooking, leading from barn to implement, etc., take miles per hour-- the proper plowing speed for a Fordson
yet another hour. Four hours' work has been lost without Tractor.
expenditure of any energy in productive work.
A Fordson can be filled with water, fuel and oil, and Soils Differ in Draft Required
thoroughly gone over in half an hour. The following table shows the draft per square inch
A Fordson can be worked continuously day and of cross section of furrow for various soil conditions.
night through all the seasons of plowing, seeding, This data, of course, is approximate but it shows the
haying, harvesting. wide range of draft.
In Sandy Soil 2 to 3 lbs. to sq. inch 1055 9 inch
In corn Stubble 3 lbs. to sq. inch 1118 8-1/2 inch
In Wheat Stubble 4 lbs. to sq. inch 1187 8 inch
In Blue Grass Sod 6 lbs. to sq. inch 1268 7-1/2 inch
In June Grass Sod 1 lbs. to sq. inch 1357 7 inch
In Clover Sod 8 lbs. to sq. inch 1462 6-1/2 inch
In Prairie Sod 15 lbs. to sq. inch 1583 6 Inch
In Virgin Sod 15 lbs. to sq. incb 1727 5-1/2 inch
In Gumbo 20 lbs. to sq. inch 1900 5 Inch
The variation in draft in different soils is shown by Belt Lengths
the following example: Take a plow with two 14" The most satisfactory lengths of belts for use on
bottoms plowing at a depth of 6" various machines, and the lengths recommended, are as
The cross section of each plow is 14 x 6, or 84' follows:
square. Separator 75 or 100 foot belt
Twice this for two bottoms gives 168 sq. ins. Silo Filler 75 or 100 foot belt
Then 168 x 3 lb.--504 lb. draft in sandy soil. Husker 75 or 100 foot belt
Likewise--168 x 7 lb.--1,176 lbs. draft in clover Shredder 7S or 100 foot belt
sod. Baler 75 or 100 foot belt
Likewise--168 x 8 lb.--1,344 lbs. draft in clay soil. Grinder 50 or 75 foot belt
Pump 50 or 75 foot belt
Size of Belt Pulleys Saw 50 or 75 foot belt
The standard Fordson belt pulley is 9-1/2" in
diameter with a 6" face. Special pulleys are not Unlimited Uses for the Fordson
furnished, as the belt pulley attachment was designed to * Indicates Belt Uses
accommodate a pulley. In order to determine the size of
pulley to be used on any implement connected up with Alfalfa Cutting Land Clearing
Fordson Tractor first ascertain the speed at which the Beet Pulling Land Grading
pulley on the implement is to be driven. The following Binder Hauling Land Rolling
table shows the size of pulley to use on the implement in Building Moving Levee Building
order to obtain various speeds from 475 to 1900 R.P.M. Canal Boat Hauling *Lighting Plant Operation
*Churning Lime Spreading
*Cider Press Operation Log Hauling
Speed on Fordson Tractor Pulley--1000 R.P.M. *Clover Hulling *Machine Shop Power
R.P.M. Implement Size of Pulley Combination Harvester Hauling Manure Spreading
475 20 inch *Concrete Mixing *Merry-Go-Round Operation
487 19-1/2 inch Corn Cutting *Milking Machine Operation
500 19 inch Corn Listing Mowing
513 18-1/2 inch Corn Loading *Oil-Well Drilling
527 18 inch *Corn Shelling *Peanut Blancher Operation
543 17-1/2 inch *Corn Shredding Peanut Digging
559 17 inch *Cotton Ginning *Pile Driver Operation
*Cream Separator Operation *Planing Mill Power
575 16-1/2 inch Cultivating Corn Plant Plowing
594 16 inch Cultivating Sugar Beets Post Pulling
613 15-1/2 inch Cultivating Sugar Cane Potato Digging
634 15 inch Cultivating Orchards Potato Planting
655 14-1/2 inch Cultivating Vineyards *Printing Press Power Plant
679 14 inch Dilsing Produce Hauling
704 13-1/2 inch Discing Pulverizing
731 13 inch Ditching *Pumping Oil
760 12-1/2 inch *Drainage Pump Operation *Pumping Water
*Ensilage Cutting *Quarrying
782 12 inch Excavation Work Raking
826 11-1/2 inch *Feed Cutting Road Grading
863 11 inch *Feed Grinding Road Oiling
926 10-1/2 inch Fence Stretching Road Sprinkling
950 10 inch *Ferris Wheel Operation *Rock Crushing
1000 9-1/2 inch Fertilizer Spreading Rock Dragging
Freight Car Towing *Rock Drilling the Fordson during the 31 days.
*Grist Mill Operation Sand Loading
Harrowing Saw Mill Operation DETAILS
Hauling (General) Seeding
Fordson Transmission, Clutch, Rear Axle, Front
*Hay. Baling *Sheep Shearing Equipment
Hay Loading *Silo Filling
Axle, and Steering Gear
Hay Raking Snow Plowing Type:
*Hay Sling Operation *Spraying The Fordson Transmission is of the Constant Mesh
Hay Tedding Street Cleaning Equipment Selective Sliding gear type.
Hedge Pulling Stump Pulling Plowing speed, the 13-tooth pinion on upper
*Hoisting Sub Soiling Terracing transmission shaft, running at same speed as crankshaft,
*Ice Conveyor Operation *Threshing Grains engages the 34-tooth gear which Is splined to worm. The
*Ice Cream Plant Operation *Threshing Rice double thread worm (considered as a gear having two
Ice Cutting Wagon Hauling teeth) engages with the 35-tooth worm gear.
Ice Hauling *Washing Machine Operation
Industrial Locomotive *Well Drilling
*Irrigation Pump Operation *Wood Sawing New Worm Gear
The new triple thread worm meshes with a 51-tooth
worm gear, making the ratio 17:1 instead of 17-1/2:1 as
Fordson Tractor Grading Statistics
on the old worm and gear. The more gear sets there are
For the purpose of compiling data on the cost of
in mesh at any one speed, the more power is lost. Note
grading with the Fordson Tractor, the City Dealers of
that on the Fordson, besides the worm reduction, there is
Portland rented a Fordson to the City of Portland for a
only one set of gears in mesh on plowing speed. The
period of 31 days during the months of August and
same applies to high speed, while on low and reverse
there are three sets of transmission gears in mesh.
The Fordson was put at work grading five city
blocks, running from 23rd to 25th streets, on Umatilla
Ave., filling two bridge approaches across Johnson
This has nine gears. The number of teeth on gears
Creek, thence to 27th St., then turning south two blocks
are as follows from front to rear:
to Sherrett Street. Two blocks of this road was old
1st 2nd 3rd 4th5et
macadam, several feet above grade; the balance was
Upper shaft 23 17 30 13
building new road. The greater part of the cut came at the
Lower shaft 24 17 17 34
extreme ends of the job requiring that nearly all of the
Reverse Idler Reverse idler 20
dirt had to be hauled a distance of nearly two blocks for
filling the bridge approaches up to grade.
The power is always transmitted from upper to
There were no horses used on the job, the Fordson
lower shaft by different combinations of internally cut
doing all the work. Implements used were an 8-inch
gear clutches. Gears in mesh at different speeds are a
Rooter plow and a 5 foot Fresno with automatic hitch.
The grading was completed to sub-grade ready for
Miles Position of Gear
per hour Shift Lever
The engineer's estimate on this job was $1.25 per
High, 1st set 6-3/4 Right-forward
yard. Following statistics will show the cost to the city
Plowing, 4th set 2-3/4 Left-back
using the Fordson.
Low, 1st, 3rd and 4th 1-1/2 Left-forward
Reverse, 1st, 2nd and 4th 2-1/2 Right-back
Charge for Fordson and operator at $12.00
per day for 31 days .......................................$372.00
The gear shifter lever is pivoted in a ball joint about
Fuel, kerosene at 15-1/2 c per gal, 210 gallons .......32.55
four inches from its lower end. When gears are In
(an average of less than 7 gallons per day)
neutral, lever Is free to move sideways.
Motor oil at $1.10, 12 gallons..................................13.20
(an average cost of 43c per day)
Transmission oil (original fill up)..............................5.50
The Fordson Clutch has 17 hardened steel disks--8
driving and 9 driven--running in oil. Driving disks have
Amount of dirt moved, 725 yards
six slots which fit studs projecting towards the rear on
Cost per yard, 56.
flywheel. Driving disks alternate with driven disks,
Cost of fuel and oil per day, average 31 days, $1.67.
which are slotted on the outer edge to fit the six keys in
the driven drum splined to the transmission drive shaft.
The showing made here is especially good
The front and rear clutch housing are bolted together
considering the fact that three different drivers operated
with eight 1/4" bolts. Six springs of 150 lbs. pressure
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