GB1355429A - Hole cutting apparatus - Google Patents

Hole cutting apparatus

Info

Publication number
GB1355429A
GB1355429A GB1355429DA GB1355429A GB 1355429 A GB1355429 A GB 1355429A GB 1355429D A GB1355429D A GB 1355429DA GB 1355429 A GB1355429 A GB 1355429A
Authority
GB
United Kingdom
Prior art keywords
rams
hammer
plate
hole
housing
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.)
Expired
Application number
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.)
Clegg H Dwyer K C
Sparling J P
Original Assignee
Clegg H Dwyer K C
Sparling J P
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 Clegg H Dwyer K C, Sparling J P filed Critical Clegg H Dwyer K C
Publication of GB1355429A publication Critical patent/GB1355429A/en
Expired legal-status Critical Current

Links

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
    • E01C23/09—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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0906—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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
    • E01C23/0926—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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

1355429 Percussive drills H CLEGG K C DWYER and J P SPARLING 30 June 1972 [13 July 1971] 32740/71 Heading B4C Percussive drilling apparatus for forming blind holes, e.g. for catseyes in roads, employs a cutting head having peripheral cutting edges enclosing an area having a shape similar to that of the desired hole cross-section but smaller in at least one direction, and central cutting edges within the area, the head being mounted for movement in at least that direction within the limits in that direction of the boundaries of the hole. The cutting tools 24, 26 are mounted on a plate 23 by heat shrink fitted or square tapered shanks, the plate being attached via spring means 34, 35 to the hammer housing 12. An anvil 36 having a connection 41 and bores for compressed air for cleaning the hole, is secured to the plate. As shown, the tool formation is as wide as the hole but is not as broad, the head and housing being moved horizontally over the work by rams 19, 21 and guided by slide means 15, 15a, 16. The hammer (not shown) is raised by rams 42, 43 engaging a bar 48 guided in slideways 54, 55. The bar engages a roller 51 linked to the hammer, the rams being exhausted at the top of their stroke to permit the hammer to fall. The lost motion connection between the bar 48 and hammer permits free rebound. The rams may be pneumatically or hydraulically operated. An apertured plate 60 and attached columns support the housing from the work surface. The aperture in the plate limits the work area and depth. In lieu of rams, manual traversing means may be used (not shown).
GB1355429D 1971-07-13 1971-07-13 Hole cutting apparatus Expired GB1355429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3274071 1971-07-13

Publications (1)

Publication Number Publication Date
GB1355429A true GB1355429A (en) 1974-06-05

Family

ID=10343305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1355429D Expired GB1355429A (en) 1971-07-13 1971-07-13 Hole cutting apparatus

Country Status (1)

Country Link
GB (1) GB1355429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111926672A (en) * 2020-04-17 2020-11-13 任辉慧 Road and bridge construction road surface rubble setting-out device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111926672A (en) * 2020-04-17 2020-11-13 任辉慧 Road and bridge construction road surface rubble setting-out device
CN111926672B (en) * 2020-04-17 2021-10-29 任辉慧 Road and bridge construction road surface rubble setting-out device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees