GB396825A - Improvements relating to pick holders for coal cutters - Google Patents

Improvements relating to pick holders for coal cutters

Info

Publication number
GB396825A
GB396825A GB494932A GB494932A GB396825A GB 396825 A GB396825 A GB 396825A GB 494932 A GB494932 A GB 494932A GB 494932 A GB494932 A GB 494932A GB 396825 A GB396825 A GB 396825A
Authority
GB
United Kingdom
Prior art keywords
pick
socket
key
improvements relating
operating
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
GB494932A
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.)
WILLIAM ARCHIBALD LOGAN
Original Assignee
WILLIAM ARCHIBALD LOGAN
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 WILLIAM ARCHIBALD LOGAN filed Critical WILLIAM ARCHIBALD LOGAN
Priority to GB494932A priority Critical patent/GB396825A/en
Publication of GB396825A publication Critical patent/GB396825A/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

Abstract

396,825. Pick-blade fixings. LOGAN, W. A., Park Cottage, Kinghorn, Fife. Feb. 19, 1932, No. 4949. [Class 61 (i).] A pick 2a is secured in the socket 2 of a holder 1 of a chain &c. coal cutter by a key 3 and a roller 4 co-operating with an inclined face on the pick or on the key or on a member interposed between the key and the pick and engaging in a recess 6 in the socket wall 2. In the modification shown in Fig. 3 the pick 2a is locked between a U-section member 9 and the wall 11 of the socket 10 by the action of a toggle link 12 pivoted at 13 to the member 9 which has a spring arm 16 co-operating with the socket 10.
GB494932A 1932-02-19 1932-02-19 Improvements relating to pick holders for coal cutters Expired GB396825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB494932A GB396825A (en) 1932-02-19 1932-02-19 Improvements relating to pick holders for coal cutters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB494932A GB396825A (en) 1932-02-19 1932-02-19 Improvements relating to pick holders for coal cutters

Publications (1)

Publication Number Publication Date
GB396825A true GB396825A (en) 1933-08-17

Family

ID=9786914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB494932A Expired GB396825A (en) 1932-02-19 1932-02-19 Improvements relating to pick holders for coal cutters

Country Status (1)

Country Link
GB (1) GB396825A (en)

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