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GB873636A - Improvements in or relating to drilling apparatus - Google Patents

Improvements in or relating to drilling apparatus

Info

Publication number
GB873636A
GB873636A GB7035/58A GB703558A GB873636A GB 873636 A GB873636 A GB 873636A GB 7035/58 A GB7035/58 A GB 7035/58A GB 703558 A GB703558 A GB 703558A GB 873636 A GB873636 A GB 873636A
Authority
GB
United Kingdom
Prior art keywords
valve
cylinder
spring
operated
piston
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
GB7035/58A
Inventor
Bernard William Anderson
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.)
Engineering Res & Applic Ltd
Original Assignee
Engineering Res & Applic Ltd
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 Engineering Res & Applic Ltd filed Critical Engineering Res & Applic Ltd
Priority to GB7035/58A priority Critical patent/GB873636A/en
Publication of GB873636A publication Critical patent/GB873636A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/32—Feeding working-spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/10—Feeding members carrying tools or work
    • B23Q2705/16—Feeding working spindles
    • B23Q2705/165—General aspects of feeding a boring spindle

Landscapes

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

Abstract

873,636. Hydraulic apparatus. ENGINEERING RESEARCH & APPLICATION Ltd. March 3, 1959 [March 5, 1958], No. 33070/58. Class 69 (2). [Also in Group XXII] An electrically-controlled hydraulic drilling and tapping machine comprises a spindle 22 rotated within a quill 18 which forms the piston-rod of a feed-piston 30 in a cylinder 29. Bolts 20, 21 secure the parts of the cylinder to the front plate 13 of the machine. The feed-piston 30 is operated by oil expelled from chambers 38, 39 by inflating bags 40, 41 with air from a supply 53 to a two-position valve 55 operated by a spring and a solenoid 56. Valve 55 is connected to a similar spring-andsolenoid operated valve 68 which supplies the air to bag 41 for forward movements of the drill and to bag 40 for rearward movements. Chamber 38 is connected to the forward end of cylinder 29, through a flow-adjustment valve 43, chamber 39 being connected to a spring- and-solenoid operated two-position valve 49, through a port 45 and a port 46 having spring- controlled means (Fig. 6, not shown) allowing free-flow into chamber 39 but restricting flow in the opposite direction for feed movements of the drill. Valve 49 is connected to the rear end of cylinder 29.
GB7035/58A 1958-03-05 1958-03-05 Improvements in or relating to drilling apparatus Expired GB873636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7035/58A GB873636A (en) 1958-03-05 1958-03-05 Improvements in or relating to drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7035/58A GB873636A (en) 1958-03-05 1958-03-05 Improvements in or relating to drilling apparatus

Publications (1)

Publication Number Publication Date
GB873636A true GB873636A (en) 1961-07-26

Family

ID=9825400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7035/58A Expired GB873636A (en) 1958-03-05 1958-03-05 Improvements in or relating to drilling apparatus

Country Status (1)

Country Link
GB (1) GB873636A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311823A (en) * 1996-04-03 1997-10-08 Moore William & Co Ltd Drive means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311823A (en) * 1996-04-03 1997-10-08 Moore William & Co Ltd Drive means

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