EP0283286A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for removing a surface layer from the ground
Assignee: Anderson Group PLC
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Filing: 1988-03-17
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Granted: —
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Expires: 2008-03-17
Abstract
Abstract Apparatus is described for removing a hard surface layer from the ground, for example from the road comprising a vehicle (20) having support means (24) mounted on a frame (22) of the vehicle (20), a rotary cutting device (32) carried by the support means (24) and moving means, conveniently provided by hydraulic rams, for urging a cutter (38) of the cutting device (32) into and out of operative engagement with a surface (18) to be removed on which the vehicle (20) is standing, means is also provided for moving the cutting device (32) in engagement with the surface (18) relative to frame (22) of the vehicle (20) along the surface (18) to remove the surface layer. Apparatus may be use in road planing or in digging a trench in which latter case a digging device is also mounted on the frame (22) of the vehicle (20) to dig out the remainder of the material from the trench.
Inventors
- 👤 Gerald Richard Oldham Pentith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:16
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/18; E02F3/188; E01; E01C; E01C23/00; E01C23/06; E01C23/08; E01C23/085; E01C23/088; E02F3/20; E02F5/00; E01C2301/00; E01C2301/50
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
161 words
Apparatus for removing a surface layer from the ground comprising a vehicle movable on ground engaging tracks or wheels and provided with a rotary cutter extending across the width of the vehicle, characterised in that the vehicle (20) having a frame (22), support means (24) mounted on the vehicle frame, the support means including a support frame (26) which carries the rotary cutting device (32), a plurality of legs (30, 28) mounted on the support frame (26) and the vehicle frame (22) respectively, the legs being arranged to be urged in the operation of the apparatus into engagement with the ground whereby to take substantially the whole weight of the apparatus from its ground-engaging tracks or wheels (40) with the support frame (26) generally parallel with the surface layer, and moving means for moving the cutting device (32) in engagement with the surface layer (18) relative to the support frame (26) along the surface layer whereby to remove the surface layer.
Claim 2
Dependent Claim
161 words
Apparatus for removing a surface layer from the ground comprising a vehicle movable on ground engaging tracks or wheels and provided with a rotary cutter extending across the width of the vehicle, characterised in that the vehicle (20) having a frame (22), support means (24) mounted on the vehicle frame, the support means including a support frame (26) which carries the rotary cutting device (32), a plurality of legs (30, 28) mounted on the support frame (26) and the vehicle frame (22) respectively, the legs being arranged to be urged in the operation of the apparatus into engagement with the ground whereby to take substantially the whole weight of the apparatus from its ground-engaging tracks or wheels (40) with the support frame (26) generally parallel with the surface layer, and moving means for moving the cutting device (32) in engagement with the surface layer (18) relative to the support frame (26) along the surface layer whereby to remove the surface layer.
Claim 3
Dependent Claim
23 words
Apparatus according to Claim 1 characterised in that the plurality of legs (30, 28) are constructed and arranged to lift the whole vehicle.
Claim 4
Dependent Claim
34 words
Apparatus according to Claims 1 or 2 characterised in that the plurality of legs (28, 30) each has a ground-engaging portion (29, 31) and drive means for driving the ground-engaging portion against the ground.
Claim 5
Dependent Claim
15 words
Apparatus according to Claim 3 characterised in that said drive means includes a hydraulic ram.
Claim 6
Dependent Claim
35 words
Apparatus according to Claims 3 or 4 characterised in that the ground engaging portions (29, 31) are provided with a series of spikes arranged to penetrate the ground whereby to maintain the vehicle in position.
Claim 7
Dependent Claim
39 words
Apparatus according to any one of Claims 1 to 5 characterised in that dowels are attached to the frame and arranged to be inserted into the ground adjacent the legs whereby to assist in maintaining the vehicle in position.
Claim 8
Dependent Claim
36 words
Apparatus according to any one of the preceding claims characterised in that first transport means (34) is provided for moving the cutting device (32) lengthwise of said support frame (26) to effect removal of said portion.
Claim 9
Dependent Claim
26 words
Apparatus according to Claim 7 characterised in that second transport means (36) is provided for moving the cutting device (32) transversely of said support frame (26).
Claim 10
Dependent Claim
37 words
Apparatus according to Claim 7 or 8 characterised in that a cutter (38) of the cutting device (32) is mounted for rotation about an axis of rotation generally parallel with the plane of the support frame (26).
Claim 11
Dependent Claim
58 words
Apparatus according to Claim 9 wherein the cutting device (32) is mounted for pivotal movement about an axis generally perpendicular to the plane of the support frame (26) whereby the cutter (38) may be positioned to operate with its axis of rotation extending generally lengthwise of the support frame (26) or generally transversely of the support frame (26).
Claim 12
Dependent Claim
56 words
Apparatus according to any one of Claims 7 to 10 wherein the support frame (26) is carried by a lifting arm (44) mounted on the vehicle frame (22) and comprises a plurality of legs (42) arranged to be urged into engagement with the ground whereby to locate the frame 26 generally parallel with said surface layer(18).
Claim 13
Dependent Claim
23 words
Apparatus according to any one of the preceding claims characterised in that digging means (48) is also mounted on the vehicle frame (22).
Claim 14
Dependent Claim
62 words
Apparatus according to any one of the preceding claims for digging trenches characterised in that a first cutting device comprising a pair of high speed diamond saws arranged to cut spaced slots along the surface layer defining edges of the trench and a second cutting device comprising a milling cutter arranged to remove the material of the surface layer between the slots.
Claim 15
Dependent Claim
36 words
Apparatus according to any one of claims 1 to 13 characterised in that in the operative position of the cutting device the cutter is external in a lengthwise direction of the wheel base of the vehicle.
Claim 16
Independent Claim
80 words
A method of removing a hard surface layer from the ground characterised in that said method comprises positioning a vehicle (20) having a frame (26) mounting a cutting device (32) adjacent a portion of a surface layer (18) to be removed, moving the cutting device (32) into operative engagement with said portion of the surface layer and moving the cutting device (32) relative to the frame (26) and over said portion whereby to remove said portion of the surface layer.
Claim 17
Independent Claim
80 words
A method of removing a hard surface layer from the ground characterised in that said method comprises positioning a vehicle (20) having a frame (26) mounting a cutting device (32) adjacent a portion of a surface layer (18) to be removed, moving the cutting device (32) into operative engagement with said portion of the surface layer and moving the cutting device (32) relative to the frame (26) and over said portion whereby to remove said portion of the surface layer.
Claim 18
Independent Claim
103 words
A method of excavating a trench in ground having a hard surface layer characterised in that said method comprises positioning a vehicle (20) having a frame (26) mounting a cutting device (32) adjacent a portion of a surface (18) of ground in which a trench is to be excavated, moving the cutting device (32) into operative engagement with said portion of the surface layer (18) and moving the cutting device relative to the frame (26) and over said portion whereby to remove said portion of the surface layer (18) and excavating material from the region from which the surface layer has been removed.
Claim 19
Independent Claim
103 words
A method of excavating a trench in ground having a hard surface layer characterised in that said method comprises positioning a vehicle (20) having a frame (26) mounting a cutting device (32) adjacent a portion of a surface (18) of ground in which a trench is to be excavated, moving the cutting device (32) into operative engagement with said portion of the surface layer (18) and moving the cutting device relative to the frame (26) and over said portion whereby to remove said portion of the surface layer (18) and excavating material from the region from which the surface layer has been removed.
References Cited (Backward Citations)
No citation records indexed.
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