GB190805778A - Improvements in Percussive Drills for use in Machine or Hand Rock-drilling. - Google Patents

Improvements in Percussive Drills for use in Machine or Hand Rock-drilling.

Info

Publication number
GB190805778A
GB190805778A GB190805778DA GB190805778A GB 190805778 A GB190805778 A GB 190805778A GB 190805778D A GB190805778D A GB 190805778DA GB 190805778 A GB190805778 A GB 190805778A
Authority
GB
United Kingdom
Prior art keywords
drilling
machine
cutter
holder
percussive drills
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
Inventor
James Harrington
Robert Parry
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
Application granted granted Critical
Publication of GB190805778A publication Critical patent/GB190805778A/en
Expired legal-status Critical Current

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Abstract

5778. Harrington, J., and Parry, R. March 14. Rock drills. - Relates to percussive drills with detachable cutters, and consists in inserting a bush 6 of any suitable material between a recess in the holder 1 and the tapered oval tang 9 of the cutter 2. The cutter 2 may have a number of tangs, and a washer of lead may be placed between the cutter and the end of the holder. Water may be passed through the holder and a passage 10 in the tang 9, a sliding sleeve being then provided to close the driftway 11.
GB190805778D 1908-03-14 1908-03-14 Improvements in Percussive Drills for use in Machine or Hand Rock-drilling. Expired GB190805778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190805778T 1908-03-14

Publications (1)

Publication Number Publication Date
GB190805778A true GB190805778A (en) 1909-03-11

Family

ID=32489189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190805778D Expired GB190805778A (en) 1908-03-14 1908-03-14 Improvements in Percussive Drills for use in Machine or Hand Rock-drilling.

Country Status (1)

Country Link
GB (1) GB190805778A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595962A (en) * 1948-05-06 1952-05-06 Letts Orlando Arthur Hard rock drill head
US2604305A (en) * 1946-10-24 1952-07-22 Pearl Edith Livingstone Rock drill tip
US2633335A (en) * 1947-02-20 1953-03-31 Ingersoll Rand Co Rock drilling tool
US2634954A (en) * 1948-06-19 1953-04-14 Joy Mfg Co Rock drill bit
US2863686A (en) * 1954-04-27 1958-12-09 Thompson Products Ltd Rock drill bit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604305A (en) * 1946-10-24 1952-07-22 Pearl Edith Livingstone Rock drill tip
US2633335A (en) * 1947-02-20 1953-03-31 Ingersoll Rand Co Rock drilling tool
US2595962A (en) * 1948-05-06 1952-05-06 Letts Orlando Arthur Hard rock drill head
US2634954A (en) * 1948-06-19 1953-04-14 Joy Mfg Co Rock drill bit
US2863686A (en) * 1954-04-27 1958-12-09 Thompson Products Ltd Rock drill bit

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