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{{Short description|Utility tractor}}
{{Infobox automobile {{Infobox tractor
| name = Allis-Chalmers Model B |name = Allis-Chalmers Model B
| image = Allis Chalmers GDO 569-at Driffield-P8100559.JPG|
| caption = An Allis-Chalmers Model B at a UK steam show |image = Allis Chalmers GDO 569-at Driffield-P8100559.JPG
| manufacturer = ] |caption = An Allis-Chalmers Model B at a UK steam show
|manufacturer = ]
| production = 1938-1957 |production = 1952-1958
| length = {{convert|110.25|in|cm|abbr=on}}
| width = {{convert|52.7|in|cm|abbr=on}} |length = {{convert|110.25|in|cm|abbr=on}}
|width =
| height = {{convert|76.75|in|cm|abbr=on}}
| weight = {{convert|2,060|lb|kg|abbr=on}} |height ={{convert|76.75|in|cm|abbr=on}}
|weight = {{convert|4173|lb|kg}} (ballasted)
| propulsion = Wheels |propulsion = Rear wheels
| type = Agricultural tractor
| engine_model = Allis-Chalmers CE and BE (main production)
| gross_power = {{convert|17|hp|kW}}
| flywheel_power =
| drawbar_pull = {{convert|1473|lb|kg}}
| drawbar_power = {{convert|12.97|hp|kW}}
| speed =
| PTO_power = {{convert|22.5|hp|kW}} (belt)
|type = Row-crop agricultural tractor
|preceded =
|succeeded = ]
| NTTL = 302
}} }}

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The '''Allis-Chalmers model B''' was a ] produced by the ] Manufacturing company from 1937 to 1957. With over 125,000 units produced, the model B became one of the best selling tractors for Allis-Chalmers and most loved tractors of its time. Known best for its versatility and adaptability, the model B was also one of the longest production tractors for Allis-Chalmers as well. Over the years of production the B came in several different variations including the Asparagus B, Potato Special, and the IB industrial tractor. The Model B was designed by ] an industrial designer and graphic designer. The '''Allis-Chalmers model B''' was a small agricultural ] produced by the ] Manufacturing company from 1937 to 1957. With over 125,000 units produced, the model B became one of the best selling and longest-produced tractors for Allis-Chalmers. The B came in several different variations including the Asparagus B, Potato Special, and the IB industrial tractor, and gave rise to the larger ]. The Model B was styled by ], an industrial designer and graphic designer.

==Description and production ==

⚫ In the early 1930s, Allis-Chalmers tractor division manager Harry Merritt's study of farm census figures showed that-they have a lot of potential in the field and even in the yard, of the nearly seven million farms in America, some four million were of {{convert|100|acre|km2}} or less. Furthermore, the million or so tractors used on American farms were generally unsuitably large for such acreage. Although the ] and then the first-generation ]s, including the ], ], and others, had been gaining significant ] and making ] ever more popular, Merritt concluded that there was a need for four million small, inexpensive tractors to fill the needs of the small farmers still using horses.<ref name="swinford1996 14-15">{{cite book |last1=Swinford |first1=Norm |title=A Guide to Allis-Chalmers Farm Tractors |date=1996 |publisher=American Society of Agricultural Engineers |isbn=0-929355-78-4 |pages=14–15}}</ref><ref name="tractordata AC-B">{{cite web |title=Allis Chalmers B |url=https://www.tractordata.com/farm-tractors/000/0/0/3-allis-chalmers-b.html |website=TractorData |access-date=26 March 2022}}</ref><ref name="swinford26-27">{{cite book |last1=Swinford |first1=Norm |title=The Proud Heritage of AGCO Tractors |date=1999 |publisher=American Society of Agricultural Engineers |isbn=1-892769-08-5 |pages=26–27}}</ref><ref name="pripps2020-18-19">{{cite book |last1=Pripps |first1=Robert N. |title=The Field Guide to Classic Farm Tractors |date=2020 |publisher=Motor Books |isbn=978-0-7603-6844-2|pages= 18–19}}</ref>


In common with other tractors of the time, the Model B received a styled body, designed by industrial designer ].<ref name="swinford1996 14-15"/>
==History of the B ==


The Model B was initially powered by a ] {{convert|113|cuin|cc|adj=on}} four-cylinder engine, then from 1938 by an Allis-Chalmers {{convert|116.1|cuin|cc|adj=on}} engine. This was increased to {{convert|125.2|cuin|cc}} in 1943, all with three-speed transmissions. The Model B was adapted for a variety of specialty crops, with variants including a high-clearance Asparagus Special and a narrow-track Potato Special. As a row-crop tractor the rear and wide front axles were adjustable. A standard tractor version, the IB, with fixed axles, was produced as an industrial tractor, often used as a mower.<ref name="swinford1996 14-15"/><ref name="tractordata AC-B"/><ref name="tractordata AC-IB">{{cite web |title=Allis Chalmers IB |url=https://www.tractordata.com/industrial-tractors/000/1/5/156-allis-chalmers-ib.htmll |website=TractorData |access-date=26 March 2022}}</ref>
⚫ In the early thirties, Allis-Chalmers tractor division manager Harry Merritt studied the farm census figures and discovered that of the nearly seven million farms in America, some four million were of {{convert|100|acre|km2}} or less. Furthermore, the million or so tractors at work on American farms were nearly all on the larger ones. Although the ] and then the first-generation ]s, including the ], ], and others, had been gaining significant ] and making ] ever more popular, Merritt concluded that there was a need for four million small, inexpensive tractors to fill the needs of the small farmers still using horses. Merritt set out to build the tractor that would finally put the horse out to pasture.


A total of 120,783 Model Bs were built at Allis-Chalmers factories in ] and in ], England. Selling price in 1958 was about $1,500.<ref name="tractordata AC-B"/>
The Model B was Allis-Chalmers' second-generation row-crop tractor. It was small, light, and versatile. The combination of an excellent tractor and effective marketing help the B to become a commercial success. Allis's marketing department had experience with such challenges as convincing doubting farmer the benefits of pneumatic tires. Early sales literature for the Allis Chalmers B was devoted to convincing the farmer that the new B required less work to maintain than horses. It was also armed with government-supplied facts and statistics along with Allis's own research proving that the new B cost less to both buy and operate than horses.


==Model RC==
The B would not remain the smallest row-crop in Allis's lineup. From 1948 to 1955 it produced the ], with only about 10 draw bar horsepower.
The Model RC was adapted from the ] as a two-plow row-crop tractor using Model B components. It was an expensive stopgap, and in 1939 the more powerful ] was introduced, based on the Model B, as a more efficient upgrade.<ref name="swinford1999 27">Swinford 1999, p. 27</ref><ref name="pripps2020-18-19"/>


==See also== ==See also==
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==References== ==References==
{{Reflist}} {{Reflist}}
*''The Allis Chalmers Story C.H Wendel'' ISBN 08734499271 *''The Allis Chalmers Story''. C.H Wendel {{ISBN|978-0-87349-927-9}}
*''Antique Power Magazine'' July/August 1996 *''Antique Power Magazine'' July/August 1996
*, ''Antiquefarming.com'' *, ''Antiquefarming.com''


{{Allis-Chalmers}} {{Allis-Chalmers}}
{{commons category|Allis-Chalmers B}} {{commons category|Allis-Chalmers B}}


] ]
]

Latest revision as of 00:50, 8 June 2023

Utility tractor
Allis-Chalmers Model B
An Allis-Chalmers Model B at a UK steam show
TypeRow-crop agricultural tractor
ManufacturerAllis-Chalmers
Production1952-1958
Length110.25 in (280.0 cm)
Height76.75 in (194.9 cm)
Weight4,173 pounds (1,893 kg) (ballasted)
PropulsionRear wheels
Engine modelAllis-Chalmers CE and BE (main production)
Gross power17 horsepower (13 kW)
PTO power22.5 horsepower (16.8 kW) (belt)
Drawbar power12.97 horsepower (9.67 kW)
Drawbar pull1,473 pounds (668 kg)
NTTL test302
Succeeded byAllis-Chalmers Model D10
1941 Model B.
A Model B with a sawmill-style buzz saw.
Another Model B, with a Fordson behind it.
A Model B on steel—optional equipment that lowered the price. Most Bs were sold on rubber.

The Allis-Chalmers model B was a small agricultural tractor produced by the Allis-Chalmers Manufacturing company from 1937 to 1957. With over 125,000 units produced, the model B became one of the best selling and longest-produced tractors for Allis-Chalmers. The B came in several different variations including the Asparagus B, Potato Special, and the IB industrial tractor, and gave rise to the larger Allis-Chalmers Model C. The Model B was styled by Brooks Stevens, an industrial designer and graphic designer.

Description and production

In the early 1930s, Allis-Chalmers tractor division manager Harry Merritt's study of farm census figures showed that-they have a lot of potential in the field and even in the yard, of the nearly seven million farms in America, some four million were of 100 acres (0.40 km) or less. Furthermore, the million or so tractors used on American farms were generally unsuitably large for such acreage. Although the Fordson tractor and then the first-generation row-crop tractors, including the Farmall, Allis-Chalmers's own Model WC, and others, had been gaining significant market penetration and making mechanised agriculture ever more popular, Merritt concluded that there was a need for four million small, inexpensive tractors to fill the needs of the small farmers still using horses.

In common with other tractors of the time, the Model B received a styled body, designed by industrial designer Brooks Stevens.

The Model B was initially powered by a Waukesha 113-cubic-inch (1,850 cc) four-cylinder engine, then from 1938 by an Allis-Chalmers 116.1-cubic-inch (1,903 cc) engine. This was increased to 125.2 cubic inches (2,052 cc) in 1943, all with three-speed transmissions. The Model B was adapted for a variety of specialty crops, with variants including a high-clearance Asparagus Special and a narrow-track Potato Special. As a row-crop tractor the rear and wide front axles were adjustable. A standard tractor version, the IB, with fixed axles, was produced as an industrial tractor, often used as a mower.

A total of 120,783 Model Bs were built at Allis-Chalmers factories in West Allis, Wisconsin and in Southampton, England. Selling price in 1958 was about $1,500.

Model RC

The Model RC was adapted from the Allis-Chalmers Model WC as a two-plow row-crop tractor using Model B components. It was an expensive stopgap, and in 1939 the more powerful Allis-Chalmers Model C was introduced, based on the Model B, as a more efficient upgrade.

See also

References

  1. ^ Swinford, Norm (1996). A Guide to Allis-Chalmers Farm Tractors. American Society of Agricultural Engineers. pp. 14–15. ISBN 0-929355-78-4.
  2. ^ "Allis Chalmers B". TractorData. Retrieved 26 March 2022.
  3. Swinford, Norm (1999). The Proud Heritage of AGCO Tractors. American Society of Agricultural Engineers. pp. 26–27. ISBN 1-892769-08-5.
  4. ^ Pripps, Robert N. (2020). The Field Guide to Classic Farm Tractors. Motor Books. pp. 18–19. ISBN 978-0-7603-6844-2.
  5. "Allis Chalmers IB". TractorData. Retrieved 26 March 2022.
  6. Swinford 1999, p. 27
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