Pivot dumping stone trap

Claim 2

A harvester having a generally longitudinally extending axis and adapted to travel in a direction along its longitudinal axis, said harvester having a body portion including upright sidewalls; a grain-threshing mechanism comprising: a threshing drum mounted for rotation about a transverse axis, a concave having a leading edge substantially parallel to said transverse axis and mounted in cooperative relationship to said threshing drum defining a threshing zone therebetween; crop supply means located forwardly of said threshing zone for advancing unthreshed crop rearwardly toward said threshing zone, said crop supply means having a discharge edge that is substantially parallel to said transverse axis and spaced from said leading edge forming a stone-catching gap therebetween; a stone-collecting and -dumping trap comprising: a transversely extending trough-shaped stone trap having a transverse front and a transverse rear edge, said trough-shaped stone trap includes a pivot shaft journaled on said sidewalls about a transverse pivot axis to thus mount the trough-shaped stone trap for movement between a collecting position and a dumping position, said transverse pivot axis located adjacent the nadir of said trough-shaped stone trap, said trap is when in the collecting position located below and in receiving relationship to said stone-catching gap with said front transverse edge adjacent said discharge edge and said rear transverse edge adjacent said leading edge, the forward portion of said trough-shaped stone trap extending rearwardly from the transverse front edge towards the transverse pivot axis is made of material impervious to the passage of grain and wherein the rearward portion of trough-shaped stone trap extending forwardly from the transverse rear edge towards the transverse pivot axis is constructed such that it will permit the passage of grain therethrough; control means for fixing said trough-shaped stone trap in the collecting position and for pivoting it from the collecting position such that the front transverse edge moves downwardly and away from said discharge edge and said rear transverse edge moves upwardly and away from said leading edge.

Claim 3

The invention as set forth in claim 1 wheRein said control means includes an elongated handle journaled for pivotable movement on the outer surface of one of said upright sidewalls by mounting means, linkage means connecting said handle to said pivot shaft and operative to transmit pivotable movement of said handle to said trough-shaped stone trap.

Claim 4

A harvester having a generally longitudinally extending axis and adapted to travel in a direction along its longitudinal axis, said harvester having a body portion including upright sidewalls; a grain-threshing mechanism comprising: a threshing drum mounted for rotation about a transverse axis, a concave having a leading edge substantially parallel to said transverse axis and mounted in cooperative relationship to said threshing drum defining a threshing zone therebetween; crop supply means located forwardly of said threshing zone for advancing unthreshed crop rearwardly toward said threshing zone, said crop supply means having a discharge edge that is substantially parallel to said transverse axis and spaced from said leading edge forming a stone-catching gap therebetween; a stone-collecting and -dumping trap comprising: a transversely extending trough-shaped stone trap having a transverse front and a transverse rear edge, said trough-shaped stone trap including a pivot shaft journaled on said sidewalls about a transverse pivot axis to thus mount the trough-shaped stone trap for movement between a collecting position and a dumping position, said transverse pivot axis located adjacent the nadir of said trough-shaped stone trap, said trap is when in the collecting position located below and in receiving relationship to said stone-catching gap with said front transverse edge adjacent said discharge edge and said rear transverse edge adjacent said leading edge; control means for fixing said trough-shaped stone trap in the collecting position and for pivoting it from the collecting position such that the front transverse edge moves rearwardly downwardly and away from said discharge edge and said rear transverse edge moves upwardly and away from said leading edge, said control means including an elongated handle journaled for pivotable movement on the outer surface of one of said upright sidewalls by mounting means, linkage means connecting said handle to said pivot shaft and operative to transmit pivotable movement of said handle to said trough-shaped stone trap; and wherein said mounting means includes a mounting plate, a tube fixed to said mounting plate such that its axis is substantially normal to said mounting plate, said mounting plate being fixedly secured to said one sidewall by means that will permit it position relative to said sidewall to be adjusted about said tube as the center, a locking component on said mounting plate, said handle having a handle pivot shaft secured thereto and dimensioned to be journaled in said tube, said handle further having a locking component thereon adopted to cooperate with the locking components on said mounting plate to lock the handle in the collecting position.

Claim 5

A harvester having a generally longitudinally extending axis and adapted to travel in a direction along its longitudinal axis, said harvester having a body portion including upright sidewalls; a grain-threshing mechanism comprising: a threshing drum mounted for rotation about a transverse axis, a concave having a leading edge substantially parallel to said transverse axis and mounted in cooperative relationship to said threshing drum defining a threshing zone therebetween; crop supply means located forwardly of said threshing zone for advancing unthreshed crop rearwardly toward said threshing zone, said crop supply means having a discharge edge that is substantially parallel to said transverse axis and spaced from said leading edge forming a stone-catching gap therebetween; a stone-collecting and -dumping trap comprising: a transversely extending trough-shaped stone trap having a transverse front and a transverse rear edge, said trough-shaped stone trap including a pivot shaft journaled on said sidewalls about a transverse pivot axis to thus mount the trough-shaped stone trap for movement between a collecting position and a dumping position, said transverse pivot axis located adjacent the nadir of said trough-shaped stone trap, said trap is when in the collecting position located below and in receiving relationship to said stone-catching gap with said front transverse edge adjacent said discharge edge and said rear transverse edge adjacent said leading edge; control means for fixing said trough-shaped stone trap in the collecting position and for pivoting it from the collecting position such that the front transverse edge moves rearwardly downwardly and away from said discharge edge and said rear transverse edge moves upwardly and away from said leading edge, said control means including an elongated handle journaled for pivotable movement on the outer surface of one of said upright sidewalls by mounting means, linkage means connecting said handle to said pivot shaft and operative to transmit pivotable movement of said handle to said trough-shaped stone trap; and wherein said mounting means includes a mounting plate, a tube fixed to said mounting plate such that its axis is substantially normal to said mounting plate, said mounting plate being fixedly secured to said one sidewall by means that will permit it position relative to said sidewall to be adjusted about said tube as the center, a locking component on said mounting plate, said handle having a handle pivot shaft secured thereto and dimensioned to be journaled in said tube, said handle further having a locking component thereon adopted to cooperate with the locking components on said mounting plate to lock the handle in the collecting position.