GB174522A - Improvements in hand fed hammer drill - Google Patents

Improvements in hand fed hammer drill

Info

Publication number
GB174522A
GB174522A GB188221A GB188221A GB174522A GB 174522 A GB174522 A GB 174522A GB 188221 A GB188221 A GB 188221A GB 188221 A GB188221 A GB 188221A GB 174522 A GB174522 A GB 174522A
Authority
GB
United Kingdom
Prior art keywords
drill
hammer drill
hand fed
fed
hammer
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
GB188221A
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.)
Cleveland Rock Drill Co
Original Assignee
Cleveland Rock Drill Co
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 Cleveland Rock Drill Co filed Critical Cleveland Rock Drill Co
Priority to GB188221A priority Critical patent/GB174522A/en
Publication of GB174522A publication Critical patent/GB174522A/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/081—Screw-and-nut feed mechanisms

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)
  • Earth Drilling (AREA)

Abstract

174,522. Marks, E. C. R., (Cleveland Rock Drill Co.). Jan. 12, 1921. Percussive drills. - A hammer drill is fed by means of a non- rotatable screw 26 placed in line with the drill and operated by a handle 37 through bevel gearing. The drill can be fed forward until a nut 38 meets a shoulder 39.
GB188221A 1921-01-12 1921-01-12 Improvements in hand fed hammer drill Expired GB174522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB188221A GB174522A (en) 1921-01-12 1921-01-12 Improvements in hand fed hammer drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB188221A GB174522A (en) 1921-01-12 1921-01-12 Improvements in hand fed hammer drill

Publications (1)

Publication Number Publication Date
GB174522A true GB174522A (en) 1922-02-02

Family

ID=9729696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB188221A Expired GB174522A (en) 1921-01-12 1921-01-12 Improvements in hand fed hammer drill

Country Status (1)

Country Link
GB (1) GB174522A (en)

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