Sperry Rand Corporation

Sperry Corporation

Everett C Cowan, Jr

Richard P Bernhardt

Edward W Rowland-Hill

John B Crego

Larimer J Knepper

Edwin O Margerum

Robert L Bowman

John D Riffanacht

The problem of adjusting the relative position of concaves and rotors is accomplished without shims by providing adjustable members engaged with sidewalls of a combine and threaded into opposite ends of a concave support member.

Adjustable support for concaves

The disclosure is directed to a combine with a unique sealing arrangement between the pivotable feeder housing and the inlet opening. The rearward portion of the feeder housing, extending into the inlet opening, includes spaced apart arcuate smooth edge plates which mate with, but do not contact, sealing blocks affixed to the inside vertical side edges of the inlet opening. The feeder housing further includes axially aligned pivot arms which extend away therefrom to engage a pair of support yokes which permit the housing to pivot vertically. The pivot arms and the edge plates have the same central axis so that pivoting of the feeder housing does not interfere with the sealing block/edge plate relationship.

Feeder housing seal

An axial flow type combine having a rotor provided with rasp bars operable relative to a concave to form a threshing region and provided at the inlet end of the threshing region with support means for the rotor adjustable to vary the distance between the rotor and concave. In the preferred construction of said support means, the forward end of the shaft of the rotor is mounted for movement toward and away from the inner surface of the concave.

Adjustable feed clearance means for axial flow type combine

A rotor for axial flow combines having an auger of predetermined length on one end thereof which, when rotated, feeds crop material to the main portion of the rotor which coacts with a concave and grate to thresh and separate grain from the crop material. The auger has a spiral flight provided with a smoothly curved peripheral edge and in order to minimize wear of said edge and also provide increased aggressive engagement of the auger with crop material, a series of similar projections are detachably connected to said flight adjacent the peripheral edge thereof, in circumferentially spaced relationship to each other. The projections have a curved apex from which opposite sides of the projection slope in different degrees respectively to provide different operational characteristics, depending upon which edge is disposed in leading position relative to the direction of rotation of the rotor and said projections being detachably connected to the flight of the auger for reversibility thereof as well as replacement purposes.

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Parkesburg, PA, United States of America

Everett C Cowan, Jr