All-Crop Harvester
Encyclopedia
All-Crop Harvester, or All-Crop Combine, was the name of tractor-drawn, PTO-driven (except the All-Crop 100 and the All-Crop SP100) combine harvester
Combine harvester
The combine harvester, or simply combine, is a machine that harvests grain crops. The name derives from the fact that it combines three separate operations, reaping, threshing, and winnowing, into a single process. Among the crops harvested with a combine are wheat, oats, rye, barley, corn ,...

s made by Allis-Chalmers
Allis-Chalmers
The Allis-Chalmers Manufacturing Co. of West Allis, Wisconsin, is an American company known for its past as a manufacturer with diverse interests, perhaps most famous for their bright Persian Orange farm tractors...

 from the mid 1930s to the early 1960s. Aside from small grains, these harvesters were able to harvest some flowers, as well as various grasses and legume crops for seed.

The first combines under that name, the All-Crop 60, had a 60 inch, sickle-bar cutting head, and the popular Model 66 had a 66 inch cutting head.

Many of these units are still in working condition, and they are well-known for their dependability and low maintenance; however, as they are quite small machines (and now very old), they are not practical on today's large farms. They were superseded by the Allis-Chalmers Gleaner combine harvesters.

All-Crop 40

Specifically designed for the Allis Chalmers Model B and C tractors, this model had a 40-inch cut and could harvest approximately one acre per hour. Produced from 1938 to 1940; only about 15,000 made.

All-Crop 60

Five foot (60-inch) cut; replaced flat belt with Texrope V-belt system. Produced from 1935 to 1949, with over 100,000 produced, this was by far the most popular All-Crop model. Harry C. Merritt and Charles J. Scranton each earned the prestigious Cyrus Hall McCormick Medal
Cyrus McCormick
Cyrus Hall McCormick, Sr. was an American inventor and founder of the McCormick Harvesting Machine Company, which became part of International Harvester Company in 1902.He and many members of the McCormick family became prominent Chicagoans....

 of the American Society of Agricultural Engineers for their work on the design of this machine.

All-Crop 60A

Introduced in 1950 as a slightly improved Model 60, ths model was only made until 1952, with about 75,000 built.

All-Crop 66

Introduced in 1953 as seccessor to the 60A, this model featured a 6-inch greater cut than its predecessor. It was on this model that Allis-Chalmers introduced their "Big-Bin" model, which held 25 versus 17 bushel
Bushel
A bushel is an imperial and U.S. customary unit of dry volume, equivalent in each of these systems to 4 pecks or 8 gallons. It is used for volumes of dry commodities , most often in agriculture...

s. Produced for six years, 72,839 of ths model were built.

All-Crop 72

On this model, a new header design was implemented; an auger
Auger
An auger is a drilling device, or drill bit, that usually includes a rotating helical screw blade called a "flighting" to act as a screw conveyor to remove the drilled out material...

 feed instead of a canvas
Canvas
Canvas is an extremely heavy-duty plain-woven fabric used for making sails, tents, marquees, backpacks, and other items for which sturdiness is required. It is also popularly used by artists as a painting surface, typically stretched across a wooden frame...

 conveyor
Conveyor belt
A conveyor belt consists of two or more pulleys, with a continuous loop of material - the conveyor belt - that rotates about them. One or both of the pulleys are powered, moving the belt and the material on the belt forward. The powered pulley is called the drive pulley while the unpowered pulley...

. Produced from 1959 to 1969, approximately 75,000 of these were built.

All-Crop 90

The largest pull-type All-Crop, this model had a seven and a half foot header and was matched to the Allis-Chalmers D-series tractos. Produced from 1957 to 1960, about 7,540 units of this model produced.

All-Crop 100

Powered by an Allis W-226 engine, the 100 could be equipped with a 9-foot or 12-foot header. Weighing in at 6,760 lbs, 4,500 units of this machine were produced from 1953 to 1957. It was replaced by the Super 100 model in 1958.

All-Crop SP100

Essentially the same as the All-Crop 100, te Super 100 had a few more luxuries. It was replaced by the Gleaner
Gleaner Manufacturing Company
Gleaner Manufacturing Company was the name of a company which made the first self-propelled combine harvesters. They are best known for their production while part of Allis-Chalmers Manufacturing Company. Gleaners were silver in color, unlike the Allis-Chalmers field tractors, which were unique...

series when Allis acquired the Gleaner Harvester Corp. Built only in 1958, there were approximately 1,000 of these machines produced.
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