GB311064A - Improvements relating to drills for drilling shot holes in coal and similar material - Google Patents

Improvements relating to drills for drilling shot holes in coal and similar material

Info

Publication number
GB311064A
GB311064A GB1049528A GB1049528A GB311064A GB 311064 A GB311064 A GB 311064A GB 1049528 A GB1049528 A GB 1049528A GB 1049528 A GB1049528 A GB 1049528A GB 311064 A GB311064 A GB 311064A
Authority
GB
United Kingdom
Prior art keywords
coal
drills
similar material
improvements relating
shot holes
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
GB1049528A
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
Priority to GB1049528A priority Critical patent/GB311064A/en
Publication of GB311064A publication Critical patent/GB311064A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work
    • B25H1/0064—Stands attached to the workpiece

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Boring (AREA)

Abstract

311,064. Donaldson, J. April 10, 1928. Drills.-Machines for drilling shot-holes in coal &c. are supported on a strut 1 by an adjustable collar 5 to which is pivoted a rack 8 engaging the coal face. The fluid or electrically operated drill has a lug 10 sliding on the rack bar for feed by a lever 12 a spring pawl 15 preventing reverse movement.
GB1049528A 1928-04-10 1928-04-10 Improvements relating to drills for drilling shot holes in coal and similar material Expired GB311064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1049528A GB311064A (en) 1928-04-10 1928-04-10 Improvements relating to drills for drilling shot holes in coal and similar material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1049528A GB311064A (en) 1928-04-10 1928-04-10 Improvements relating to drills for drilling shot holes in coal and similar material

Publications (1)

Publication Number Publication Date
GB311064A true GB311064A (en) 1929-05-09

Family

ID=9968898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1049528A Expired GB311064A (en) 1928-04-10 1928-04-10 Improvements relating to drills for drilling shot holes in coal and similar material

Country Status (1)

Country Link
GB (1) GB311064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009516A1 (en) * 1979-04-05 1980-10-16 Hougen Everett D DRILLING MACHINE WITH MAGNETIC BASE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009516A1 (en) * 1979-04-05 1980-10-16 Hougen Everett D DRILLING MACHINE WITH MAGNETIC BASE
DE3050613A1 (en) * 1979-04-05 1982-10-07 Everett D Hougen DRILLING MACHINE WITH MAGNETIC BASE

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