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GB198473A - Improvements in drills and grinders - Google Patents

Improvements in drills and grinders

Info

Publication number
GB198473A
GB198473A GB769022A GB769022A GB198473A GB 198473 A GB198473 A GB 198473A GB 769022 A GB769022 A GB 769022A GB 769022 A GB769022 A GB 769022A GB 198473 A GB198473 A GB 198473A
Authority
GB
United Kingdom
Prior art keywords
spindle
valve
fluid
driven
feed
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
GB769022A
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 GB769022A priority Critical patent/GB198473A/en
Publication of GB198473A publication Critical patent/GB198473A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

198,473. Hey, G., and Matravers, F. G. March 16, 1922. Drilling-machines, - The tool spindles of drilling and like machines are driven and fed by fluid-pressure. A turbine-rotor 9 is feathered on the spindle 6 and is driven by fluid-pressure which is supplied at 13 and exhausts at 14. The spindle is provided with a fluid-tight piston 17 and a slidevalve 19 which distributes fluidpressure from a supply 21 to feed or retract the tool spindle. Exhaust from the cylinder 16 takes place through the port 23. The valve may be controlled by an arm 26 co-operating with adjustable stops on the valve-spindle. The rate of feed is regulated by the adjustment of a valve 31 controlling a dashpot cylinder 27 in which a piston 29 on the tool spindle slides. The valve 31 may be held on its seat by a spring of such a strength that a slow feed and an automatic rapid return of the tool spindle are effected. The machine may be provided with more than one spindle, any of which may be driven through reduction gearing.
GB769022A 1922-03-16 1922-03-16 Improvements in drills and grinders Expired GB198473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB769022A GB198473A (en) 1922-03-16 1922-03-16 Improvements in drills and grinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB769022A GB198473A (en) 1922-03-16 1922-03-16 Improvements in drills and grinders

Publications (1)

Publication Number Publication Date
GB198473A true GB198473A (en) 1923-06-07

Family

ID=9837918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB769022A Expired GB198473A (en) 1922-03-16 1922-03-16 Improvements in drills and grinders

Country Status (1)

Country Link
GB (1) GB198473A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542866A (en) * 1950-05-03 1951-02-20 Darwin B Grossman Drill unit
US2604759A (en) * 1951-03-20 1952-07-29 Neil V Smith Fluid pressure actuated tool driving and feeding equipment
US2648238A (en) * 1949-04-19 1953-08-11 William E Raney Tool actuating mechanism and control unit therefor
US2722854A (en) * 1954-11-05 1955-11-08 Alkon Products Corp Pneumatic drill unit
US2750816A (en) * 1956-06-19 Fluid operated drilling unit
US2854871A (en) * 1955-11-08 1958-10-07 North American Aviation Inc Depth control stop for air feed drills
US2854870A (en) * 1954-12-07 1958-10-07 Gardner Denver Co Pressure fluid operated tool with controlled power feed
US2887907A (en) * 1955-06-17 1959-05-26 Borg Warner Hydraulic drill press
US2891426A (en) * 1958-10-23 1959-06-23 Ralph W Walsh Method of metal drilling
US2891425A (en) * 1958-10-23 1959-06-23 Ralph W Walsh Metal drilling apparatus
DE1137650B (en) * 1956-03-06 1962-10-04 Hugo Allemann A G Additional device for hole grinding

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750816A (en) * 1956-06-19 Fluid operated drilling unit
US2648238A (en) * 1949-04-19 1953-08-11 William E Raney Tool actuating mechanism and control unit therefor
US2542866A (en) * 1950-05-03 1951-02-20 Darwin B Grossman Drill unit
US2604759A (en) * 1951-03-20 1952-07-29 Neil V Smith Fluid pressure actuated tool driving and feeding equipment
US2722854A (en) * 1954-11-05 1955-11-08 Alkon Products Corp Pneumatic drill unit
US2854870A (en) * 1954-12-07 1958-10-07 Gardner Denver Co Pressure fluid operated tool with controlled power feed
US2887907A (en) * 1955-06-17 1959-05-26 Borg Warner Hydraulic drill press
US2854871A (en) * 1955-11-08 1958-10-07 North American Aviation Inc Depth control stop for air feed drills
DE1137650B (en) * 1956-03-06 1962-10-04 Hugo Allemann A G Additional device for hole grinding
US2891426A (en) * 1958-10-23 1959-06-23 Ralph W Walsh Method of metal drilling
US2891425A (en) * 1958-10-23 1959-06-23 Ralph W Walsh Metal drilling apparatus

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