Crawler Tractor - Holt 2 Ton

Production date
1921
Country
USA
State/Province
Illinois
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Object detail

Description
This is a 1921 Holt 2 Ton crawler tractor with a four cylinder petrol engine. It is painted grey with black logo, black levers and a brown seat with a grey metal frame. There is a crank handle attached to the front of the engine held in place with a brown leather strap. "CATERPILLAR" is cast into the front of the engine. "HOLT" has been stencil cut vertically on both sides of the engine towards the front of the crawler tractor.
Classification
CH classification RURAL INDUSTRY Farm Machinery tractor
Production date
1921
Production place
Measurements
L2710 x W1370 x H1489mm
Weight 2313kg
Bore 101.6mm
Stroke 139.7mm
RPM 1000
Drawbar 15 HP
Belt 25 HP
Media/Materials description
Steel
Vinyl
Paint
Rubber
Leather
Glass
Signature/Marks
CATERPILLAR \ REG US PAT OFF
HOLT
CATERPILLAR \ REG US PAT OFF
HOLT
TRACTOR NO. 72230
History and use
This HOLT model 2-Ton T35 crawler tractor was manufactured between 1921 and 1924, with around 1350 machines sold.This is the first series of the model 2-Ton produced by the HOLT Manufacturing Company. This tractor is the oldest crawler tractor in the collection

It has a tub seat and a wooden pulley on the back which appears to be non standard. The crawler is painted grey with black trim and has a 'wavy' Caterpillar logo. Caterpillar was the trademark used by HOLT for its crawler tractors.

The T35 featured a Holt M35 four cylinder engine, with 4x5.5 inch bore and stroke. The engine producted 15 drawbar horsepower and 25 belt horsepower with running at it s rated speed of 1000 rpm.

The M35 engines were supplied to HOLT by Hall Scott who had previously made railcar, automobile and aeroplane engines. Hall Scott transferred many of the high-tech features from their aeroplane engines into their automotive engines. These included an overhead camshaft and valves, hemispherical and cross-flow cylinder heads and aluminium pistons and crankcases.
Registration number
R6639

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