GB780238A - Improvements in or relating to clutch mechanisms for thread cutting machines - Google Patents

Improvements in or relating to clutch mechanisms for thread cutting machines

Info

Publication number
GB780238A
GB780238A GB2306655A GB2306655A GB780238A GB 780238 A GB780238 A GB 780238A GB 2306655 A GB2306655 A GB 2306655A GB 2306655 A GB2306655 A GB 2306655A GB 780238 A GB780238 A GB 780238A
Authority
GB
United Kingdom
Prior art keywords
shaft
spring
spindle
work
sleeves
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
GB2306655A
Inventor
Columbus Rainer Sacchini
Donald Ray Tomko
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.)
Marquette Metal Products Co
Original Assignee
Marquette Metal Products Co
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 Marquette Metal Products Co filed Critical Marquette Metal Products Co
Priority to GB2306655A priority Critical patent/GB780238A/en
Publication of GB780238A publication Critical patent/GB780238A/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/08—Friction clutches with a helical band or equivalent member, which may be built up from linked parts, with more than one turn embracing a drum or the like, with or without an additional clutch actuating the end of the band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Drilling And Boring (AREA)

Abstract

780,238. Tapping. MARQUETTE METAL PRODUCTS CO. Aug. 10, 1955, No. 23066/55. Class 83 (3). [Also in Group XXIV] In a screwing or tapping machine wherein the aligned work-spindle H and tool-spindle D rotate continuously in the same direction, the spindle D is driven selectively from gears F, S, rotating at different speeds, through coil-spring clutches D<SP>1</SP>, D<SP>2</SP>. The outer ends of the springs are attached to sleeves 14, 141, secured respectively to gears F, S and freely rotatable on shaft D, whilst the inner end of either spring may be moved axially to grip one of the sleeves 15, 16 keyed to shaft D. This is effected by a sliding ring E, carrying pins 25, 26 engaging the springs. In operation, with shaft H rotating faster than shaft D and a spring P<SP>1</SP> pushing ring E to the right, tapping proceeds, with relative axial-feed between tap T and work W, until an electrical contact L on the spindle-slide engages a contact L<SP>1</SP> on the work-holder to energize a solenoid P and pull ring E to the left. This clutches gear F to shaft D, which thereupon rotates faster than the work to withdraw the tap. Contacts L, Ll remain latched together during retraction, compressing a spring L<SP>2</SP>, but release on complete withdrawal of the tap to de-energize solenoid P and allow spring P<SP>1</SP> to return ring E to the right. Lubricating machines. Lubricating oil is flushed through the sleeves 14, 15 &c. to prevent foreign matter clogging the springs D<SP>1</SP>, D<SP>2</SP>.
GB2306655A 1955-08-10 1955-08-10 Improvements in or relating to clutch mechanisms for thread cutting machines Expired GB780238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2306655A GB780238A (en) 1955-08-10 1955-08-10 Improvements in or relating to clutch mechanisms for thread cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2306655A GB780238A (en) 1955-08-10 1955-08-10 Improvements in or relating to clutch mechanisms for thread cutting machines

Publications (1)

Publication Number Publication Date
GB780238A true GB780238A (en) 1957-07-31

Family

ID=10189570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2306655A Expired GB780238A (en) 1955-08-10 1955-08-10 Improvements in or relating to clutch mechanisms for thread cutting machines

Country Status (1)

Country Link
GB (1) GB780238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976976A (en) * 1957-10-07 1961-03-28 Nolte Albert C Jr Electro-magnetic clutch mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976976A (en) * 1957-10-07 1961-03-28 Nolte Albert C Jr Electro-magnetic clutch mechanism

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