GB618718A - Improvements in and relating to coal cutter picks, and the pick-holders and pick-boxes therefor - Google Patents

Improvements in and relating to coal cutter picks, and the pick-holders and pick-boxes therefor

Info

Publication number
GB618718A
GB618718A GB34064/46A GB3406446A GB618718A GB 618718 A GB618718 A GB 618718A GB 34064/46 A GB34064/46 A GB 34064/46A GB 3406446 A GB3406446 A GB 3406446A GB 618718 A GB618718 A GB 618718A
Authority
GB
United Kingdom
Prior art keywords
pick
recess
shank
pin
holder
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
GB34064/46A
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.)
THOMAS RIDLEY CURRIE
Original Assignee
THOMAS RIDLEY CURRIE
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 THOMAS RIDLEY CURRIE filed Critical THOMAS RIDLEY CURRIE
Priority to GB34064/46A priority Critical patent/GB618718A/en
Publication of GB618718A publication Critical patent/GB618718A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/191—Means for fixing picks or holders for fixing holders

Abstract

618,718. Coal-cutting machines. CURRIE, T. R., SCOTT, A., and BAXTER, G. Nov. 18, 1946, No. 34064. [Class 68 (i)] In a pick mounting for a coal-cutting machine, the pick 1 has a cutting-point at each end and a transverse recess 1b centrally of its back, the pick fitting in a recess 2c in the head 2a of a holder provided with a shank 2b which enters a recess in the pick block 3, and the recess 2c having a transverse rib 2e adapted to engage the recess in the pick ; a forwardly projecting boss 2f on the holder has an aperture 2g in which is inserted a wedge 2h engaging the face of the pick, the lower end of the wedge bearing against the pick block. The pick holder may be secured by a transverse pin 4 engaging a groove in the shank 2b, the pin having a cut-away part 4a, whereby rotation of the pin frees the shank; other securing means may be used, or the shank may be tapered and engage a tapered hole in the pick box.
GB34064/46A 1946-11-18 1946-11-18 Improvements in and relating to coal cutter picks, and the pick-holders and pick-boxes therefor Expired GB618718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB34064/46A GB618718A (en) 1946-11-18 1946-11-18 Improvements in and relating to coal cutter picks, and the pick-holders and pick-boxes therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34064/46A GB618718A (en) 1946-11-18 1946-11-18 Improvements in and relating to coal cutter picks, and the pick-holders and pick-boxes therefor

Publications (1)

Publication Number Publication Date
GB618718A true GB618718A (en) 1949-02-25

Family

ID=10360923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34064/46A Expired GB618718A (en) 1946-11-18 1946-11-18 Improvements in and relating to coal cutter picks, and the pick-holders and pick-boxes therefor

Country Status (1)

Country Link
GB (1) GB618718A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922403C (en) * 1952-07-06 1955-01-17 Eickhoff Maschinenfabrik Geb Chisel holder for chipping tools
GB2175938A (en) * 1985-05-31 1986-12-10 Joy Mfg Co Rotary retainer for mining bits
EP3251809A1 (en) * 2016-05-31 2017-12-06 Everpads Co., Ltd. Cutting tool holding mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922403C (en) * 1952-07-06 1955-01-17 Eickhoff Maschinenfabrik Geb Chisel holder for chipping tools
GB2175938A (en) * 1985-05-31 1986-12-10 Joy Mfg Co Rotary retainer for mining bits
GB2175938B (en) * 1985-05-31 1989-07-12 Joy Mfg Co Rotary retainer for mining bits
EP3251809A1 (en) * 2016-05-31 2017-12-06 Everpads Co., Ltd. Cutting tool holding mechanism

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