Earth working – Mounting for pushed tool at end of motor vehicle – Transversely mounted blade
Patent
1976-02-27
1978-03-14
Shapiro, Paul E.
Earth working
Mounting for pushed tool at end of motor vehicle
Transversely mounted blade
180 948, 305 16, 305 60, E02F 376
Patent
active
040786161
ABSTRACT:
A frame for a crawler tractor designed to permit selective mounting of at least two pairs of endless track assemblies of different widths, together with bulldozer assemblies of different configurations suitable for use with the respective pairs of track assemblies. The tractor frame comprises a pair of laterally spaced, rigidly interconnected main frame members, and track frame means bracketed to the opposite sides of the main frame members. A selected pair of track assemblies are mounted on the usual sprockets and idlers arranged adjacent the front and rear ends of the track frame means. A pair of lift cylinders are supported in predetermined positions over the main frame members so as to be made common use of by both types of bulldozer assemblies.
REFERENCES:
patent: 1974520 (1934-09-01), Stewart
patent: 2125327 (1938-08-01), Baker et al.
patent: 2304075 (1942-12-01), Davidson et al.
patent: 2734292 (1956-02-01), Graves
patent: 3005275 (1961-10-01), Febre
patent: 3580341 (1971-05-01), Terrell
patent: 3674105 (1972-07-01), Egli
patent: 3685592 (1972-08-01), Frisbee
patent: 3920081 (1975-11-01), Terai et al.
Hisamatsu Masanori
Okano Toshikatsu
Kabushiki Kaisha Komatsu Seisakusho
Shapiro Paul E.
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