The Aultman & Taylor Company
(Page 5 of 10)
May/June 2002
Dr. Lorin E. Bixler
Company catalogs stated: 'Our motors are built for
heavy-duty service; are of the 4-cylin-der, 4-cycle type, cylinders
are cast in pairs and arranged parallel and in horizontal position.
Being cast in pairs, the weight is lessened, perfect water
circulation provided, greater rigidity with fewer joints secured by
bolts and a simple water and carburetor connection.'
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The firm claimed, 'With the drop forge cam shaft used in
Aultman & Taylor tractor motors, the timing is fixed before
leaving the factory and will practically never need
adjusting.'
Catalogs also said, 'All Aultman-Taylor tractors are
provided with both battery and magneto. Battery consists of 10 No.
6 dry cells arranged in two series.' The company stated,
'The speed of our motors is automatically controlled by a
fly-ball governor, placed intact in the crankcase, driven by a gear
off the cam shaft. The speed may be varied from 125 to 500
revolutions per minute on 25-50 and 30-60 sizes, and from 125 to
600 revolutions on 18-36, by simply moving a
lever.'6
The firm's catalogs said, 'We wish to call your
attention to our valve-in-head construction. This construction
insures maximum power and efficiency, with a minimum consumption of
fuel. The valves are easily removed by pressing down on the spring
and removing the pin after cylinder heads have been removed. A cap
holds the pin in position, preventing its loss or removal except by
compressing the spring. The valve rods have a ball on one end that
fits in a socket in the upper end of rocker arm.'
The firm stated, 'The cylinders are cast from a mixture of
semi-steel of a special chemical analysis so that they will wear
smooth and hard as glass. Contrast this with soft-coarse grained
cast iron as used by many other tractor builders. The cylinder
heads are cast in pairs, and secured to the cylinders by heavy stud
bolts provided with copper asbestos gaskets. These heads can be
readily and easily removed to clean out carbon deposits in
combustion chambers. To secure best results from an internal
combustion engine, carbon deposits must not be permitted.'
The 30-60 achieved immediate success and was specially adapted
to the needs of large farms. It was capable of pulling eight to 12
plows and operated the largest thresher built.
During the season of 1918 the company announced a new and
smaller size, a 15-30 HP tractor. It was designed for the 200-acre
farm and was the smallest tractor that the company built. With it
they hoped to satisfy the demand for a small tractor, as well as to
meet the competition from other companies that had placed small
tractors on the market. While it may have been a good tractor, it
did not capture the market and was not as popular as were several
other tractors of that period. It was capable of pulling four
14-inch plows. The company's 1920 and later catalogs stated
that the 15-30 tractor could handle the firm's 27-inch New
Century separator fully equipped. No figures are available as to
the number of that size tractor that they built, but it is probably
fair to state that it was fewer than any of the other sizes
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