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Patent EP0093576A2 successfully refreshed from Google Patents.
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EP0093576A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A screening apparatus

Assignee: Finlay John Engineering Ltd
•
Filing: 1983-04-27
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Granted: —
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Expires: 2003-04-27
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Abstract

Abstract A screening apparatus includes a conveyor (10) pivotally mounted at its rear end on a wheeled chassis (2). The conveyor (10) includes a rear section (12) and a forward section (14) telescopically connected to the rear section (12). An endless belt (16) is guided and powered by spaced rollers (18) mounted on the conveyor rear and forward sections (12) and (14). The conveyor (10) is moved between its operational and transporting positions by a jacking cylinder (20). A screen device (30) is pivotally coupled to the output stage of the forward section (14), and is controlled by a ram (36). A hopper (8) for receiving the material to be separated is mounted on the chassis (2). To convert the apparatus from its operational position to its transporting position, the jacking cylinder (20) lowers the conveyor (10), two sets of troughing rollers (38) are removed from the forward section (14), and the ram (36) is disconnected from the forward section (14). This forward section (14) is partially telescoped into the rear section (12), and the screen device (30) is pivoted clockwise and bolted to the rear section (12).

Inventors

  • 👤 John Alexander Finlay

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 08:13
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/005

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 90 words
A screening apparatus as herein defined comprising an elongate conveyor having a rear section pivotally mounted on a wheeled chassis, and a forward section telescopically connected to the rear section, and a screen device pivotally connected to the output stage of the forward section whereby the conveyor sections and screen device are movable between an operational position in which the conveyor sections and screen device are extended, and a transporting position in which the conveyor sections are telescoped and the screen device is folded back on the conveyor forward section.
Claim 2
Dependent Claim 90 words
A screening apparatus as herein defined comprising an elongate conveyor having a rear section pivotally mounted on a wheeled chassis, and a forward section telescopically connected to the rear section, and a screen device pivotally connected to the output stage of the forward section whereby the conveyor sections and screen device are movable between an operational position in which the conveyor sections and screen device are extended, and a transporting position in which the conveyor sections are telescoped and the screen device is folded back on the conveyor forward section.
Claim 3
Dependent Claim 25 words
An apparatus as claimed in Claim 1 in which the conveyor sections and screen device are parallel to one another when in the transporting position.
Claim 4
Dependent Claim 35 words
An apparatus as claimed in Claim 1 or Claim 2 including jacking means extending between the wheeled chassis and the conveyor rear section to enable the conveyor to move between said operational and transporting positions.
Claim 5
Independent Claim 34 words
An apparatus as claimed in any preceding Claim including a ram extending between the screen device and the conveyor forward section to enable the screen device to move between said operational and transporting positions.
Claim 6
Independent Claim 33 words
An apparatus as claimed in any preceding Claim in which the conveyor rear section includes transversely spaced housings and the conveyor forward section includes transversely spaced members arranged to slide in said housings.
Claim 7
Independent Claim 28 words
An apparatus as claimed in any preceding Claim in which the screen device is pivotally connected at its rear to the output stage of the conveyor forward section.
Claim 8
Dependent Claim 37 words
An apparatus as claimed in Claim 6 inlcuding fastening means to secure the forward portion of the screen device to the forward end of the conveyor rear section to retain the screen device in the transporting position.
Claim 9
Independent Claim 46 words
An apparatus as claimed in any preceding Claim including spaced troughing rollers mounted on the conveyor rear and forward sections, in which at least some of the troughing rollers on the forward section are removable to facilitate the telescoping of the conveyor rear and forward sections.

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