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A boom (12) for a load handling machine (10), the boom (12) has a mounting (20) by which the boom (12) is mounted on a body (11) of the machine (10), and first and second telescoped sections (24), the boom (12) carrying in use, at or towards its outermost end, a load handling implement (27), the sec...

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Bibliographische Detailangaben
Hauptverfasser:	NURSE, ANDREW DAVID, PANNI, DAVID, SHERRATT, PAUL, WAY, RICHARD
Format:	Patent
Sprache:	ger
Schlagworte:	CRANES HAULING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD LIFTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	A boom (12) for a load handling machine (10), the boom (12) has a mounting (20) by which the boom (12) is mounted on a body (11) of the machine (10), and first and second telescoped sections (24), the boom (12) carrying in use, at or towards its outermost end, a load handling implement (27), the second boom (24) section being telescoped within the first section and being extendible and retractable relative to the first boom sections (22) by actuating means, characterised in that at least one of the boom sections (22, 25) includes a plurality of walls (25a, 25b, 25c, 25d) each being a web made at least predominantly of a composite material, and where adjacent walls meet there being bearing members (30/35; 30a) which extend along a substantial length of the boom section (22, 25) to provide bearing surfaces (31) during sliding of the second boom section (25) relative to the first boom section (22).