Conveyor support mechanism for variable slope vibrating screens

1. A variable slope vibrating screen for material processing comprising:

a variable position vibrating screen, having a longitudinal axis configured for sorting aggregate by size;

an overhead conveyor configured to provide material to the variable position vibrating screen; said overhead conveyor comprising a bottom feed support section or tail section and an independently positionable intermediate support section and an overhead conveyor head support section;

wherein said independently positionable intermediate support section has an angular orientation with respect to the bottom feed support section which is adjustable, but constant during operation;

wherein the angular orientation of said independently positionable intermediate support section is set at substantially one-half of the angle of inclination of the bottom feed support section

wherein said bottom feed support section has a sliding connection which can be adjusted without making a change in the angular orientation of the independently positionable intermediate support section.

2. The screen of claim 1 wherein the independently positionable intermediate support section can be adjusted to be at different locations while maintaining a constant angular orientation.

3. A variable slope vibrating screen for material processing comprising:

a variable position vibrating screen, having a longitudinal axis configured for sorting aggregate by size;

an overhead conveyor configured to provide material to the variable position vibrating screen; said overhead conveyor comprising a bottom feed support section or tail section and an independently positionable intermediate support section and an overhead conveyor head support section;

wherein said independently positionable intermediate support section has an angular orientation with respect to the bottom feed support section which is adjustable, but constant during operation;

wherein the independently positionable intermediate support section comprises:

an intermediate support main linkage body;

an intermediate support main leg structure;

an intermediate support main roller support structure, the intermediate support main linkage body is fixed to the intermediate support main roller support structure, and pinned to the intermediate support main leg structure, and also pinned to the pivoting main linkage body to chassis support.

4. The screen of claim 3 wherein the angular orientation of said independently positionable intermediate support section is set at substantially one-half of the angle of inclination of the bottom feed support section.

5. The screen of claim 4 wherein the independently positionable intermediate support section can be adjusted to be at different locations while maintaining a constant angular orientation.

6. The screen of claim 3 wherein the independently positionable intermediate support section can be adjusted to be at different locations while maintaining a constant angular orientation.

7. The screen of claim 3 further comprising a pivoting main linkage body to chassis support which is pivotally coupled to both said intermediate support main linkage body and a chassis-mounted support.

8. A variable slope vibrating screen comprising:

a vibrating screen;

a chassis:

a chassis mounted support;

a bottom feed support section supported by said chassis;

an overhead head support section supported by said vibrating screen;

means for supporting a portion of a conveyor between said bottom feed support section and said overhead head support section with an angular orientation which is substantially one-half of the angle of inclination of the bottom feed support section and allowing said bottom feed support section to slide with respect to said chassis.

9. The system of claim 8 wherein said means for supporting comprises:

an intermediate support main linkage body;

an intermediate support main leg structure;

an intermediate support main roller support structure;

wherein the intermediate support main linkage body is fixed to the intermediate support main roller support structure, and pinned to the intermediate support main leg structure, and also pinned to the pivoting main linkage body to chassis support.

10. The screen of claim 9 further comprising:

a pivoting main linkage body to chassis support which is pivotally coupled to both said intermediate support main linkage body and said chassis-mounted support.

11. A compact mobile variable angle vibrating screen comprising:

a variable angle vibrating screen;

an overhead conveyor comprising:

an inclined bottom feed support section;

an independently positionable intermediate support section; and

an overhead head support section;

wherein the independently positionable intermediate support section can be relocated to a new position in response to a translation of the inclined bottom feed support structure while maintaining an angular orientation which is half of an angle of inclination of the bottom feed support section.