GB692642A - Improvements in or relating to tracers or duplicators for machine tools - Google Patents

Improvements in or relating to tracers or duplicators for machine tools

Info

Publication number
GB692642A
GB692642A GB3005050A GB3005050A GB692642A GB 692642 A GB692642 A GB 692642A GB 3005050 A GB3005050 A GB 3005050A GB 3005050 A GB3005050 A GB 3005050A GB 692642 A GB692642 A GB 692642A
Authority
GB
United Kingdom
Prior art keywords
valve
rings
passages
pressure
stylus
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
GB3005050A
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 GB3005050A priority Critical patent/GB692642A/en
Publication of GB692642A publication Critical patent/GB692642A/en
Priority to GB1255059A priority patent/GB943413A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • 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
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/24—Feelers; Feeler units
    • B23Q35/26—Feelers; Feeler units designed for a physical contact with a pattern or a model
    • B23Q35/36—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of a hydraulic or pneumatic copying system

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Turning (AREA)

Abstract

692,642. Machine details; copying. ARMYTAGE, F. W. March 10, 1952 [Dec. 8, 1950], No. 30050/50. Class 83 (iii). [Also in Group XXIX] A fluid-pressure tracer valve for copying machine tools, such as milling machines or lathes, comprises inner and outer valve members axially reciprocable relative to one another by connections from the tracer stylus 25, one of the members, preferably the outer member, being built up from a series of rings 14. The rings 14 are chamfered at 16 and slotted at 17 on one face and are assembled in three pairs face to face to form channels leading to annular grooves in the valve body 1 from which a passage 9 leads to the pressure source and passages 5, 13 lead to exhaust. Slotted spacers 15 are fitted between the rings 14 to provide communication with annular grooves from which passages 7, 11 lead through a reversing valve 31 to the ends of the working cylinder. The inner valve member has external annular grooves 21 and is movable axially through about two-thousandths of an inch by either axial or lateral pressure on the stylus, the valve stem engaging the inner member by a conical- and spherically-faced connector such as 24 and being supported by a spherical bearing such as 26, or a curved flanged bearing, and an adjustable plug 27. An adjustable spring 22 tends to force the inner valve member downwards, and a pin-and-slot connection 29 prevents rotation of the valve stem. When the stylus is moving over the pattern without deflection, pressure fluid in the middle annular space 21 flows equally past the edges of the lands on the inner member and the edges of the middle pair of rings to the passages 7, 11 and thus to each end of the cylinder to hold it stationary, and the lands overlap the inner edges of the two outer pairs of rings to cut off the exhaust passages 5, 13. Deflection of the tracer moves the inner valve member up or down, opening one end of the cylinder fully to pressure and the other end to exhaust. Alternatively, internal ports may be formed in the inner member leading to annular ducts registering with corresponding ducts in the outer member.
GB3005050A 1950-12-08 1950-12-08 Improvements in or relating to tracers or duplicators for machine tools Expired GB692642A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3005050A GB692642A (en) 1950-12-08 1950-12-08 Improvements in or relating to tracers or duplicators for machine tools
GB1255059A GB943413A (en) 1950-12-08 1959-04-14 Improvements relating to presure fluid valve mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3005050A GB692642A (en) 1950-12-08 1950-12-08 Improvements in or relating to tracers or duplicators for machine tools

Publications (1)

Publication Number Publication Date
GB692642A true GB692642A (en) 1953-06-10

Family

ID=10301446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3005050A Expired GB692642A (en) 1950-12-08 1950-12-08 Improvements in or relating to tracers or duplicators for machine tools

Country Status (1)

Country Link
GB (1) GB692642A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022598A2 (en) * 1979-07-17 1981-01-21 Eta A.G. Ebauches-Fabrik Measuring feeler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022598A2 (en) * 1979-07-17 1981-01-21 Eta A.G. Ebauches-Fabrik Measuring feeler
EP0022598A3 (en) * 1979-07-17 1981-05-06 Eta A.G. Ebauches-Fabrik Measuring feeler

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