Motor vehicles – Power – With spring powered motor
Patent
1979-01-17
1981-06-02
Silverstrim, John P.
Motor vehicles
Power
With spring powered motor
180314, 180329, 180900, 280 5A, B60K 1508, B60K 508
Patent
active
042706211
ABSTRACT:
A tractor with two engines arranged in tandem, each carried by a frame portion pivotable relative to the other counterbalances about a vertical axis under the rear engine. The body of the tractor is narrow forward and to the rear wherein axles for front and rear sets of ground engaging wheels extend laterally and mount six wheels each. The front engine and rear engines extend forward of the respective front and rear sets of ground wheels. The front frame portion is turnable axially relative to the rear frame portion under the rear engine and steering is accomplished by the relative pivoting of the portions about the aforesaid vertical axis. A fuel tank forms a guard over the rear set of wheels and includes a depression for an operator's seat. The fuel tank has a central partition and is optionally hinged in its outer portions whereby the width of the tractor is reduced by removing the outer wheels and pivoting the outer portions of the fuel tank to the rear. A lifting device extends aft between the central rear wheels which is clearly visible from the operator's seat. The distribution of weight of the frame portions counterbalances loads on the lifting device to minimize stress at the pivot between the frame portions.
REFERENCES:
patent: 1177007 (1916-03-01), Auerbacher
patent: 1329998 (1920-02-01), Palmer
patent: 1415122 (1922-05-01), Schofield
patent: 3006358 (1961-10-01), Hildebrandt
patent: 3051502 (1962-08-01), Webster
patent: 3195913 (1965-07-01), Hallsworth
patent: 3633609 (1972-01-01), Benner
patent: 3645349 (1972-02-01), Nichter
patent: 3690395 (1972-09-01), Spiller
Albright Penrose Lucas
Silverstrim John P.
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