ES212926A1 - Improvements in cutter picks for coal cutting machines - Google Patents

Improvements in cutter picks for coal cutting machines

Info

Publication number
ES212926A1
ES212926A1 ES0212926A ES212926A ES212926A1 ES 212926 A1 ES212926 A1 ES 212926A1 ES 0212926 A ES0212926 A ES 0212926A ES 212926 A ES212926 A ES 212926A ES 212926 A1 ES212926 A1 ES 212926A1
Authority
ES
Spain
Prior art keywords
cutting
shaft
spike
faces
bracket
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
ES0212926A
Other languages
Spanish (es)
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.)
HIGHER SPEDD METALS Ltd
Original Assignee
HIGHER SPEDD METALS 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 HIGHER SPEDD METALS Ltd filed Critical HIGHER SPEDD METALS Ltd
Publication of ES212926A1 publication Critical patent/ES212926A1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
    • E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Sawing (AREA)

Abstract

Improvements in the manufacture of cutting picks for coal cutting or sawing machines characterized by a cutting pick comprising a shaft and a cutting head forming body with it and in the same plane as the shaft and provided with a cutting face projecting forward in the which an insert or hard piece constitutes the cutting edge and from whose cutting face the head is lowered backwards characterized by the fact that two diametrically opposed non-marginal areas on the lateral faces of the shaft and along the opposite marginal faces of the same shaft over the entire width of said opposing marginal faces they are adapted to limit or limit a tucked and abutted insert surface for the end of a cutting spike fastening screw in a support in which said spike is to be fastened with each indicated stop surface having a spine near the free end of the shaft which is adapted stops so that when the shaft of the cutting tip is held so Slightly engage the retaining screw in the bracket to prevent the cutting spike from accidentally falling completely out of the bracket. (Machine-translation by Google Translate, not legally binding)
ES0212926A 1953-01-12 1953-12-28 Improvements in cutter picks for coal cutting machines Expired ES212926A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB88453A GB750612A (en) 1953-01-12 1953-01-12 Improvements in cutter picks for coal cutting machines

Publications (1)

Publication Number Publication Date
ES212926A1 true ES212926A1 (en) 1954-03-16

Family

ID=9712180

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0212926A Expired ES212926A1 (en) 1953-01-12 1953-12-28 Improvements in cutter picks for coal cutting machines

Country Status (2)

Country Link
ES (1) ES212926A1 (en)
GB (1) GB750612A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998574A (en) * 1989-12-01 1991-03-12 Kennametal Inc. Cutting bit and block mount
US5005622A (en) * 1990-02-16 1991-04-09 Kennametal Inc. Block and locking mechanism for a stump grinding cutter bit and method of securing and retaining

Also Published As

Publication number Publication date
GB750612A (en) 1956-06-20

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