Multi-speed powershift transmissions

Details Multi-speed powershift transmissions Multi-speed powershift transmissions

1975-07-30

1977-06-28

Scott, Samuel

Machine element or mechanism

Power take-off

From shaft extension

74331, F16H 308, F16H 3706

Patent

active

040317625

ABSTRACT:
A known family of multi-speed constant-mesh gear reversible powershift transmissions has a basic structure that includes a plurality of drivingly connected shafts, with all of these shafts lying in a common plane. A plurality of gear trains selectively drives the output shaft at various speed ratios, and pluralities of clutches are used for connecting several of the shafts and for connecting various ones of the gears to various shafts for conjoint rotation therewith. The improvement resides in the modification of an inline transmision to a drop-type transmission which permits the interposition of a power takeoff shaft that is operatively connected to and axially aligned with the input shaft.

REFERENCES:
patent: 2661634 (1953-12-01), Bechman et al.
patent: 2669880 (1954-02-01), Brock et al.
patent: 2793533 (1957-05-01), Swenson et al.
patent: 2975656 (1961-03-01), Haverlender
patent: 3710637 (1973-01-01), Fisher et al.
patent: 3722301 (1973-03-01), Crooks
patent: 3739647 (1973-06-01), Crooks
patent: 3893345 (1975-07-01), Sisson et al.

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