GB2118599A - Scabbler - Google Patents

Scabbler Download PDF

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Publication number
GB2118599A
GB2118599A GB08309650A GB8309650A GB2118599A GB 2118599 A GB2118599 A GB 2118599A GB 08309650 A GB08309650 A GB 08309650A GB 8309650 A GB8309650 A GB 8309650A GB 2118599 A GB2118599 A GB 2118599A
Authority
GB
United Kingdom
Prior art keywords
scabbling
tractor
units
top plate
ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08309650A
Inventor
Charles Mailey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB08309650A priority Critical patent/GB2118599A/en
Publication of GB2118599A publication Critical patent/GB2118599A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/0855—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools moved rectilinearly, e.g. scabblers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
    • B28D1/265—Scabbling machines or scabbling tools

Abstract

Apparatus for scabbling large areas of substantially planar hard ground comprising a tractor 1 having a transmission system which allows continuous forward speeds of less than walking pace, and a plurality of scabbling units 4 harnessed thereto. <IMAGE>

Description

SPECIFICATION Scabbler The present invention relates to working of hard ground surfaces formed from concrete, stone or the like materials, in order to provide a key or roughened binding surface to which a finishing coat can be overlaid.
This invention has particular application to the laying of large surface areas such as in the construction of motorways, airport aprons and runways, car parks etc.
The usual term for this roughening surface treatment is "scabbling" and there are known means for effecting this treatment.
One of the means is a hand drawn apparatus comprising a pneumatically powered vibrating weighted unit provided with cutters on a ground face, and mounted on wheels.
A disadvantage of this apparatus is that in laying down of large surface areas many manhours are required to cover the surface, which results in considerable expense and lengthening of project time.
In addition the use of such units on inclined surfaces is extremely difficult due to their weight which cannot be supported by the average man. Thus the unit must be supported by ropes by at least one man to restrain slippage and guided across the slope by another.
An object of the present invention is to obviate or mitigate the aforesaid disadvantages.
According to the present invention there is provided apparatus for scabbling large areas of substantially planar hard ground comprising a tractor having a transmission system which allows continuous forward speeds of less than walking pace, and a plurality of scabbling units harnessed thereto.
Preferably three scabbling units are linked in a triangular array by a single reinforced top plate.
In the accompanying drawings:- Figure 1 shows a suitable reinforced top plate which for weight reasons totally replaces the normal top plate on each scabbling unit, which are represented by cuboids; Figure 2 shows a plan view of the top plate shown in Fig. 1 with linkages fixed for attachment to a tractor; Figure 3 shows a rear view of the scabbling units mounted together using the top plate as shown in Fig. 1; and Figure 4 shows a side view of the scabbling units attached to a tractor.
In one embodiment of the invention apparatus for scabbling large areas of substantially planar hard ground such as a car park comprises a mine tractor 1 capable of maintaining a continuous low speed of less than or equal to walking pace so as to provide adequate time for the scabbling units to work the surface; and three scabbling units 2 joined together by a single reinforced top plate 3 and arranged in a triangular array such that the working surfaces 4 will treat marginally overlapping areas of ground surface. The units 2 are connected to a pneumatic power source not shown. The reinforced top plate 3 is used to harness the scabbling units 2 to the tractor 1 via pivotal linkages 5 so that the scabbling units 2 can be raised or lowered to break or make contact with the ground surface.Each unit 2 is mounted on wheels 6 to maintain the working surfaces 4 at the correct height and facilitate travel over the ground.
The mini tractor has a very high lateral stability and low centre of gravity due to the fact that the tractor has a wider than normal track. This has been achieved in this embodiment by welding additional rear wheels 7 onto the tractor so that it has four coaxial rear wheels in pairs on either side of the tractor.
This enables the working of inclined surfaces which are normally difficult to work due to the weight of the single hand-drawn unit.
The mini tractor provides a better source of traction than normal tractors because the transmission is such that speeds of walking pace and less can be continuously maintained without juddering or stalling occurring as would occur in trying to run a larger tractor at such low speeds. In addition the sheer weight of larger tractors coupled with the normal vibration of scabbling units makes it impossible to work on slopes as the tractor simply slides down the slope or topples over.
1. Apparatus for scabbling large areas of substantially planar hard ground comprising a tractor having a transmission system which allows continuous forward speeds of less than walking pace, and a plurality of scabbling units harnessed thereto.
2. Apparatus according to claim 1 wherein the plurality of scabbling units are joined together using a single reinforced top plate.
3. Apparatus according to claim 1 or 2 wherein the plurality of scabbling units are arranged in a triangular array.
4. Apparatus according to claim 3 wherein three scabbling units are used.
5. Apparatus according to any one of the preceding claims wherein the scabbling units are harnessed to the tractor by means of pivotal linkages for raising and lowering the units to break and make respectively contact with the ground surface.
6. Apparatus according to any one of the preceding claims wherein the tractor has a wide track.
7. Apparatus according to claim 6 wherein the tractor has four rear wheels mounted coaxially in pairs on either side of the tractor.
8. Apparatus according to any one of the preceding claims wherein the tractor is of the
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Scabbler The present invention relates to working of hard ground surfaces formed from concrete, stone or the like materials, in order to provide a key or roughened binding surface to which a finishing coat can be overlaid. This invention has particular application to the laying of large surface areas such as in the construction of motorways, airport aprons and runways, car parks etc. The usual term for this roughening surface treatment is "scabbling" and there are known means for effecting this treatment. One of the means is a hand drawn apparatus comprising a pneumatically powered vibrating weighted unit provided with cutters on a ground face, and mounted on wheels. A disadvantage of this apparatus is that in laying down of large surface areas many manhours are required to cover the surface, which results in considerable expense and lengthening of project time. In addition the use of such units on inclined surfaces is extremely difficult due to their weight which cannot be supported by the average man. Thus the unit must be supported by ropes by at least one man to restrain slippage and guided across the slope by another. An object of the present invention is to obviate or mitigate the aforesaid disadvantages. According to the present invention there is provided apparatus for scabbling large areas of substantially planar hard ground comprising a tractor having a transmission system which allows continuous forward speeds of less than walking pace, and a plurality of scabbling units harnessed thereto. Preferably three scabbling units are linked in a triangular array by a single reinforced top plate. In the accompanying drawings:- Figure 1 shows a suitable reinforced top plate which for weight reasons totally replaces the normal top plate on each scabbling unit, which are represented by cuboids; Figure 2 shows a plan view of the top plate shown in Fig. 1 with linkages fixed for attachment to a tractor; Figure 3 shows a rear view of the scabbling units mounted together using the top plate as shown in Fig. 1; and Figure 4 shows a side view of the scabbling units attached to a tractor. In one embodiment of the invention apparatus for scabbling large areas of substantially planar hard ground such as a car park comprises a mine tractor 1 capable of maintaining a continuous low speed of less than or equal to walking pace so as to provide adequate time for the scabbling units to work the surface; and three scabbling units 2 joined together by a single reinforced top plate 3 and arranged in a triangular array such that the working surfaces 4 will treat marginally overlapping areas of ground surface. The units 2 are connected to a pneumatic power source not shown. The reinforced top plate 3 is used to harness the scabbling units 2 to the tractor 1 via pivotal linkages 5 so that the scabbling units 2 can be raised or lowered to break or make contact with the ground surface.Each unit 2 is mounted on wheels 6 to maintain the working surfaces 4 at the correct height and facilitate travel over the ground. The mini tractor has a very high lateral stability and low centre of gravity due to the fact that the tractor has a wider than normal track. This has been achieved in this embodiment by welding additional rear wheels 7 onto the tractor so that it has four coaxial rear wheels in pairs on either side of the tractor. This enables the working of inclined surfaces which are normally difficult to work due to the weight of the single hand-drawn unit. The mini tractor provides a better source of traction than normal tractors because the transmission is such that speeds of walking pace and less can be continuously maintained without juddering or stalling occurring as would occur in trying to run a larger tractor at such low speeds. In addition the sheer weight of larger tractors coupled with the normal vibration of scabbling units makes it impossible to work on slopes as the tractor simply slides down the slope or topples over. CLAIMS
1. Apparatus for scabbling large areas of substantially planar hard ground comprising a tractor having a transmission system which allows continuous forward speeds of less than walking pace, and a plurality of scabbling units harnessed thereto.
2. Apparatus according to claim 1 wherein the plurality of scabbling units are joined together using a single reinforced top plate.
3. Apparatus according to claim 1 or 2 wherein the plurality of scabbling units are arranged in a triangular array.
4. Apparatus according to claim 3 wherein three scabbling units are used.
5. Apparatus according to any one of the preceding claims wherein the scabbling units are harnessed to the tractor by means of pivotal linkages for raising and lowering the units to break and make respectively contact with the ground surface.
6. Apparatus according to any one of the preceding claims wherein the tractor has a wide track.
7. Apparatus according to claim 6 wherein the tractor has four rear wheels mounted coaxially in pairs on either side of the tractor.
8. Apparatus according to any one of the preceding claims wherein the tractor is of the type known as "mini-tractors".
9. Apparatus for scabbling large areas of substantially planar hard ground substantially as hereinbefore described with reference to the accompanying drawings.
GB08309650A 1982-04-08 1983-04-08 Scabbler Withdrawn GB2118599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08309650A GB2118599A (en) 1982-04-08 1983-04-08 Scabbler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8210420 1982-04-08
GB08309650A GB2118599A (en) 1982-04-08 1983-04-08 Scabbler

Publications (1)

Publication Number Publication Date
GB2118599A true GB2118599A (en) 1983-11-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB08309650A Withdrawn GB2118599A (en) 1982-04-08 1983-04-08 Scabbler

Country Status (1)

Country Link
GB (1) GB2118599A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916373A1 (en) * 1989-05-19 1990-11-22 Modzel Wilhelm Roughening of concrete of bituminous road surface - involves a vibrating plate with steel balls embedded in its surface
DE4000366A1 (en) * 1990-01-09 1991-07-11 Helmus Strassen Bau Gmbh & Co Road-surface roughening machine - incorporates tool mounted on oscillating frame attached to motor vehicle
DE4024711A1 (en) * 1990-08-03 1992-02-13 Voegele Ag J METHOD AND DEVICE FOR RUGING SMOOTH ROAD COVERINGS
WO2001094705A1 (en) * 2000-06-06 2001-12-13 Marco Hierschbiel Device for removing the surface layer of a wall or ceiling
DE10208988B4 (en) * 2002-02-28 2010-04-01 Baulabor Dr.-Ing. Richter Method and device for roughening of road surface

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB321296A (en) * 1928-10-08 1929-11-07 Ralph Spencer Improvements relating to sett-paved roads and similar surfaces
GB709904A (en) * 1950-07-24 1954-06-02 Metropolitan Construction Comp Apparatus for roughening the surfaces of hard materials
GB1056011A (en) * 1965-02-25 1967-01-25 John Macdonald & Company Multi-tool concrete scabbling unit
GB1420432A (en) * 1971-10-01 1976-01-07 Non Impact Surfaces Ltd Appratus for machining road surfaces
GB2010163A (en) * 1977-09-24 1979-06-27 Joad Eng Ltd Scabblers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB321296A (en) * 1928-10-08 1929-11-07 Ralph Spencer Improvements relating to sett-paved roads and similar surfaces
GB709904A (en) * 1950-07-24 1954-06-02 Metropolitan Construction Comp Apparatus for roughening the surfaces of hard materials
GB1056011A (en) * 1965-02-25 1967-01-25 John Macdonald & Company Multi-tool concrete scabbling unit
GB1420432A (en) * 1971-10-01 1976-01-07 Non Impact Surfaces Ltd Appratus for machining road surfaces
GB2010163A (en) * 1977-09-24 1979-06-27 Joad Eng Ltd Scabblers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916373A1 (en) * 1989-05-19 1990-11-22 Modzel Wilhelm Roughening of concrete of bituminous road surface - involves a vibrating plate with steel balls embedded in its surface
DE4000366A1 (en) * 1990-01-09 1991-07-11 Helmus Strassen Bau Gmbh & Co Road-surface roughening machine - incorporates tool mounted on oscillating frame attached to motor vehicle
DE4000366C2 (en) * 1990-01-09 2000-02-24 Voegele Ag J Device for roughening the surfaces of road surfaces
DE4024711A1 (en) * 1990-08-03 1992-02-13 Voegele Ag J METHOD AND DEVICE FOR RUGING SMOOTH ROAD COVERINGS
WO2001094705A1 (en) * 2000-06-06 2001-12-13 Marco Hierschbiel Device for removing the surface layer of a wall or ceiling
DE10208988B4 (en) * 2002-02-28 2010-04-01 Baulabor Dr.-Ing. Richter Method and device for roughening of road surface

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