GB1015423A - Improved paving breaker steel - Google Patents

Improved paving breaker steel

Info

Publication number
GB1015423A
GB1015423A GB12364/62A GB1236462A GB1015423A GB 1015423 A GB1015423 A GB 1015423A GB 12364/62 A GB12364/62 A GB 12364/62A GB 1236462 A GB1236462 A GB 1236462A GB 1015423 A GB1015423 A GB 1015423A
Authority
GB
United Kingdom
Prior art keywords
taper
paving breaker
head
drill bit
shaft
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
GB12364/62A
Inventor
Cyril Gordon Ives
Terence Roderick Mills
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.)
Sir McAlpine Robert and Sons Ltd
Original Assignee
Sir McAlpine Robert and Sons Ltd
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 Sir McAlpine Robert and Sons Ltd filed Critical Sir McAlpine Robert and Sons Ltd
Priority to GB12364/62A priority Critical patent/GB1015423A/en
Priority to US252383A priority patent/US3258295A/en
Priority to CH226463A priority patent/CH397750A/en
Publication of GB1015423A publication Critical patent/GB1015423A/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
    • E01C23/12—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/122—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
    • E01C23/124—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus moved rectilinearly, e.g. road-breaker apparatus with reciprocating tools, with drop-hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

1,015,423. Drill bits. SIR ROBERT Mc- ALPINE & SONS Ltd. Jan. 18, 1963, No. 12364/ 62. Heading B4C. A paving breaker drill bit comprises a shaft portion 3 of circular crosssection and a head portion in the form of a tapered wedge, the head being longer than the shaft. The drill bit is formed with a hexagonal shank 1 and a thrust collar 2. In a modification, Figs. 3 and 4 (not shown), the head portion is formed as a twostage taper, the taper of the upper portion merging into a more abrupt taper of the lower portion.
GB12364/62A 1962-03-30 1962-03-30 Improved paving breaker steel Expired GB1015423A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB12364/62A GB1015423A (en) 1962-03-30 1962-03-30 Improved paving breaker steel
US252383A US3258295A (en) 1962-03-30 1963-01-18 Paving breaker steel
CH226463A CH397750A (en) 1962-03-30 1963-02-22 Paving Breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12364/62A GB1015423A (en) 1962-03-30 1962-03-30 Improved paving breaker steel

Publications (1)

Publication Number Publication Date
GB1015423A true GB1015423A (en) 1965-12-31

Family

ID=10003183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12364/62A Expired GB1015423A (en) 1962-03-30 1962-03-30 Improved paving breaker steel

Country Status (3)

Country Link
US (1) US3258295A (en)
CH (1) CH397750A (en)
GB (1) GB1015423A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089562A (en) * 1977-04-27 1978-05-16 Baumeister Frederick F Cutter for asphalt paving
GB2257080B (en) * 1991-06-28 1994-11-30 Hydra Tight Ltd Improvements in and relating to nut splitters
WO1999048650A1 (en) 1998-03-26 1999-09-30 Ramco Construction Tools Inc. Doing Business As Xygon/Ramco Construction Tools, Inc. Percussion tool for boom mounted hammers
USD752937S1 (en) * 2013-06-18 2016-04-05 Hilti Aktiengesellschaft Chisel
USD756741S1 (en) * 2014-04-10 2016-05-24 Robert Bosch Gmbh Chisel
USD865308S1 (en) 2018-01-25 2019-10-29 SEVENTY EIGHT Co., Ltd Hand scraper
CA186295S (en) * 2018-09-07 2020-09-02 Arbortech Industries Ltd Chisel attachment for a power tool
USD921465S1 (en) * 2019-05-06 2021-06-08 Milwaukee Electric Tool Corporation Mortar knife
USD923447S1 (en) * 2019-05-06 2021-06-29 Milwaukee Electric Tool Corporation Chisel
USD922842S1 (en) * 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD922841S1 (en) * 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel
USD922840S1 (en) * 2019-05-06 2021-06-22 Milwaukee Electric Tool Corporation Chisel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1644110A (en) * 1924-10-10 1927-10-04 Cover Henry Tribe Apparatus for breaking up concrete-road foundations and like structures
US1891222A (en) * 1930-03-18 1932-12-20 Rapid Pavement Breaker Corp Tool for demolition machines
US2161062A (en) * 1934-03-24 1939-06-06 Robert J Killgore Percussion tool
GB442912A (en) * 1934-11-02 1936-02-18 John Hitchen Improvements in plugs for breaking up concrete, or the like
US2302069A (en) * 1938-04-07 1942-11-17 Sullivan Machinery Co Material breaking implement
US2629588A (en) * 1948-03-25 1953-02-24 Neamand Vincent Tool for breaking concrete and the like
US2843369A (en) * 1956-11-21 1958-07-15 Simmons Jeanette Impact means for breaking up frozen ground

Also Published As

Publication number Publication date
US3258295A (en) 1966-06-28
CH397750A (en) 1965-08-31

Similar Documents

Publication Publication Date Title
GB1015423A (en) Improved paving breaker steel
GB1463785A (en) Spade drill bit
GB1276249A (en) Improvements in or relating to percussion drill bits
GB1395855A (en) Twist drill
GB1117694A (en) Improvements in cutter bits
GB1005019A (en) Tool retainer
GB1112446A (en) Improvements in or relating to coal-cutter picks and the like with hard metal tips
GB1366438A (en) Self drilling toggle bolt assembly
GB1008029A (en) Drill bits
GB1072609A (en) Improvements in and relating to nails
GB1378358A (en) Drilling buttons
GB980644A (en) A rock boring roller cutter
GB657432A (en) Improvements in or relating to carbide tipped rock drills
GB1069264A (en) Improvements in or relating to percussive drill bits
GB776028A (en) Drill bits
GB1110495A (en) Cutter bits and mounting means therefor
GB961449A (en) Improvements relating to drills
GB1362292A (en) Rock drills
GB996400A (en)
GB1038453A (en) Improvements in or relating to mine roof supports
GB975533A (en) Improvements in percussion drills
GB897516A (en) Drill bits for earth formations
GB1062158A (en) Improvements relating to drills
GB1132876A (en) An improved dental bur drill
GB1000138A (en) Improvements in or relating to drill rods