GB143053A - Improvements in means for engaging and disengaging the lead screw in lathes and like machine tools - Google Patents

Improvements in means for engaging and disengaging the lead screw in lathes and like machine tools

Info

Publication number
GB143053A
GB143053A GB1377919A GB1377919A GB143053A GB 143053 A GB143053 A GB 143053A GB 1377919 A GB1377919 A GB 1377919A GB 1377919 A GB1377919 A GB 1377919A GB 143053 A GB143053 A GB 143053A
Authority
GB
United Kingdom
Prior art keywords
engaging
lathes
disengaging
lead screw
machine tools
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
GB1377919A
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 GB1377919A priority Critical patent/GB143053A/en
Publication of GB143053A publication Critical patent/GB143053A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • B23Q5/406Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw with means for meshing screw and nut

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

143,053. Smith, A. May 31, 1919. Driving machines. - The lead-screw nut of a lathe &c. is arranged to slide to and from the screw on a guideway as controlled by crankpins engaging a camshaped recess cut in the nut. The recess is formed by intersecting circular holes f, f<1>, permitting easy production by drilling or milling. Flats g, g<1> are formed at the intersections. The Figure shows the engaged position, the crank-pin k<1> being held by the weight of the handle p on the flat g<1> at the dead'-centre. A surface s<1> formed on a part of the shaft rests against one of the guide-strips. In the disengaged position, the pin k engages the flat g, and the surface s contacts with the guide-strip. Adjustment for wear is provided by mounting the shaft m in an eccentric bush.
GB1377919A 1919-05-31 1919-05-31 Improvements in means for engaging and disengaging the lead screw in lathes and like machine tools Expired GB143053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1377919A GB143053A (en) 1919-05-31 1919-05-31 Improvements in means for engaging and disengaging the lead screw in lathes and like machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1377919A GB143053A (en) 1919-05-31 1919-05-31 Improvements in means for engaging and disengaging the lead screw in lathes and like machine tools

Publications (1)

Publication Number Publication Date
GB143053A true GB143053A (en) 1920-05-20

Family

ID=10029202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1377919A Expired GB143053A (en) 1919-05-31 1919-05-31 Improvements in means for engaging and disengaging the lead screw in lathes and like machine tools

Country Status (1)

Country Link
GB (1) GB143053A (en)

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