GB700440A - Method and machines for drilling holes - Google Patents

Method and machines for drilling holes

Info

Publication number
GB700440A
GB700440A GB554952A GB554952A GB700440A GB 700440 A GB700440 A GB 700440A GB 554952 A GB554952 A GB 554952A GB 554952 A GB554952 A GB 554952A GB 700440 A GB700440 A GB 700440A
Authority
GB
United Kingdom
Prior art keywords
drills
drilling
pinions
drill
phase
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
GB554952A
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.)
JACK CAMPBELL POLLOCK
Original Assignee
JACK CAMPBELL POLLOCK
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 JACK CAMPBELL POLLOCK filed Critical JACK CAMPBELL POLLOCK
Priority to GB554952A priority Critical patent/GB700440A/en
Publication of GB700440A publication Critical patent/GB700440A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
    • B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
    • B23B39/22—Drilling machines with a plurality of working-spindles; Drilling automatons with working-spindles in opposite headstocks

Landscapes

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

Abstract

700,440. Drilling machines. POLLOCK, J. C. Aug. 27, 1952 [March 3, 1952], No. 5549/52. Class 83 (3) A drilling-machine comprises a pair of axiallyaligned oppositely facing drills having feeding means interconnected by an out-of-phase crank and link system, whereby the drills are caused to approach one another until separated by a predetermined gap and thereafter one drill is retracted while the other is advanced to complete the drilling. The work 1 is clamped in a holder 2 and oppositely disposed drills 3, 4, are fed simultaneously towards it. The drills are separately driven by electric motors and belts and are fed by pinions 7, 8, respectively engaging racks on quills containing the drill spindles. The pinions are interconnected by out-of-phase cranks and may be driven by a hand wheel 17 at one end to obtain the feed and withdrawal motion above. The Provisional Specification refers to reversible electric or hydraulic feed motors controlled by limit switches or valves respectively.
GB554952A 1952-03-03 1952-03-03 Method and machines for drilling holes Expired GB700440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB554952A GB700440A (en) 1952-03-03 1952-03-03 Method and machines for drilling holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB554952A GB700440A (en) 1952-03-03 1952-03-03 Method and machines for drilling holes

Publications (1)

Publication Number Publication Date
GB700440A true GB700440A (en) 1953-12-02

Family

ID=9798243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB554952A Expired GB700440A (en) 1952-03-03 1952-03-03 Method and machines for drilling holes

Country Status (1)

Country Link
GB (1) GB700440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819504A1 (en) * 1978-05-03 1979-11-08 Sandvik Ab METHOD OF DRILLING HOLES AND MACHINE TOOLS TO PERFORM THE PROCEDURE
FR2985675A3 (en) * 2012-01-13 2013-07-19 Renault Sa Device for setting of tools in position on both sides of car case support structure during assembly of car, has actuator controlling transmission system for simultaneous actuation of two tools according to symmetrical displacements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819504A1 (en) * 1978-05-03 1979-11-08 Sandvik Ab METHOD OF DRILLING HOLES AND MACHINE TOOLS TO PERFORM THE PROCEDURE
US4260300A (en) * 1978-05-03 1981-04-07 Sandvik Aktiebolag Methods and apparatus for forming holes in workpieces
FR2985675A3 (en) * 2012-01-13 2013-07-19 Renault Sa Device for setting of tools in position on both sides of car case support structure during assembly of car, has actuator controlling transmission system for simultaneous actuation of two tools according to symmetrical displacements

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