GB190926240A - Improvements in Drill Heads. - Google Patents

Improvements in Drill Heads.

Info

Publication number
GB190926240A
GB190926240A GB190926240DA GB190926240A GB 190926240 A GB190926240 A GB 190926240A GB 190926240D A GB190926240D A GB 190926240DA GB 190926240 A GB190926240 A GB 190926240A
Authority
GB
United Kingdom
Prior art keywords
spindles
rollers
grooves
cup
lubricant
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
Inventor
Howard Robard Hughes
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
Application granted granted Critical
Publication of GB190926240A publication Critical patent/GB190926240A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits

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

26,240. Hughes, H. R. Nov. 20, 1908, [Convention date]. Bore-hole apparatus.- Relates to drill heads for rock and other substances, of the type carrying frusto-conical rolling cutters. Blocks 1, having spindles 6 for the cutting- rollers 4, are secured to a driving-spindle 3 by a sleeve 2, and may be held against relative lateral movement by tongues and grooves or the like. The spindles 6 are stepped, and project inwards, the rollers 4 thus being prevented from falling off. If a shearing action is required, the axis of each roller extends slightly to one side of the axis of the head. The outer ends of the rollers have grooves or recesses 7 to grind the material ; and the other ends of the chisel teeth 5 are formed as side cutting-edges 5<a>, the hole cut being substantially greater than the head. Water is passed through the driving spindle 3, and passes, preferably through inwardly-directed channels, to the point between the rollers. A cup 10 is provided for compressed lubricant, from which cup ducts 11 with branches 12 pass to the outer surfaces and ends of the spindles 6. Grooves 13, preferably spiral, are provided, in the rollers or on the spindles to spread the lubricant, which is supplied by water pressure only or by a plunger 14 pressed forward by a spring 15 or by water. The spindles may consist of separate pieces 20, Fig. 3, which may contain the lubricant cup, and the cutters may be secured against displacement by screws 21 projecting into grooves 22.
GB190926240D 1908-11-20 1909-11-12 Improvements in Drill Heads. Expired GB190926240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US190926240XA 1908-11-20 1908-11-20

Publications (1)

Publication Number Publication Date
GB190926240A true GB190926240A (en) 1910-02-24

Family

ID=32596467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190926240D Expired GB190926240A (en) 1908-11-20 1909-11-12 Improvements in Drill Heads.

Country Status (1)

Country Link
GB (1) GB190926240A (en)

Similar Documents

Publication Publication Date Title
GB190926240A (en) Improvements in Drill Heads.
US1018274A (en) Cable and wire cutter.
US1030284A (en) Diamond-set tool.
US482704A (en) Mortising-chisel
US297013A (en) Tool for boring square holes
US629145A (en) Instrument for cutting grooves in cylindrical holes in rocks.
US1146356A (en) Feeding means of percussive rock-drills, coal-cutters, and the like.
US1621227A (en) wetmore
GB109940A (en) Improvements in or relating to Cutter Blocks and Cutters of Wood Working Machines or the like.
US387144A (en) Cutter for mining-machines
US1275164A (en) Combined chuck and drill extractor.
US681381A (en) Cutter for rock-drills.
US987659A (en) Chuck attachment for machine-tools.
US1126032A (en) Pipe-cutter.
GB191312560A (en) Improvements in Roller Boring Drills.
US455064A (en) Cutting-tool for carving-machines
US855411A (en) Boring-tool.
US1159302A (en) Coal-mining machine.
USRE8265E (en) Improvement in rotary cutters
US394226A (en) Broach
US764609A (en) Boring-tool.
GB190525429A (en) Improvements in Hand or Machine Tools for Working in Metals, Stone, Wood and the like.
US349766A (en) Hosea e
GB191120213A (en) Improvements connected with Turning Tools for Cutting Off Lengths or Pieces of Metal Bars or the like.
US387050A (en) Cutter for mining-machines