GB209385A - Improvements in or relating to drilling and screw cutting devices - Google Patents

Improvements in or relating to drilling and screw cutting devices

Info

Publication number
GB209385A
GB209385A GB16279/23A GB1627923A GB209385A GB 209385 A GB209385 A GB 209385A GB 16279/23 A GB16279/23 A GB 16279/23A GB 1627923 A GB1627923 A GB 1627923A GB 209385 A GB209385 A GB 209385A
Authority
GB
United Kingdom
Prior art keywords
springs
clutch
disc
drilling
pins
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
GB16279/23A
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.)
AUTOMAT IND GmbH
Original Assignee
AUTOMAT IND GmbH
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 AUTOMAT IND GmbH filed Critical AUTOMAT IND GmbH
Publication of GB209385A publication Critical patent/GB209385A/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
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
    • F16D7/08—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving axially between engagement and disengagement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/38—Chucks with overload clutches

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drilling Tools (AREA)

Abstract

209,385. Automat - Industrie - Ges. Jan. 8, 1923, [Convention date]. Drilling; attachments for screwing and tapping. -An attachment for drilling and screw-cutting comprises a friction clutch which may be disengaged when either the rotational torque or the axial-feed pressure on the tool becomes excessive, the clutch being re-engaged when the torque or pressure becomes normal. The driving member 1 has a depending flange 1<b> provided with slots 1<a> in which engage lugs 4<a1> on a clutch disc 4<a>, a second disc 4b being attached to the driven member 3. Balls 4<c> attached to a cage 4d engage circular pockets in the clutch discs and are pressed into engagement therewith by springs 6 and a nut 8. The springs 6 are provided with arms 6<a>, Fig. 5, which bear on pins 4f, Fig. 1, attached to the lower disc, the resilience being adjustable by means of a pin 12 on a rotatable sleeve 5. A scale on the member 1 and a pointer on the sleeve determine the setting for different-sized tools. When the axial-feed pressure exceeds a predetermined amount the member 3 is raised relatively to the member 1 against springs 13, constructed similarly to the springs 6, and the clutch discs are separated. The springs 13 are adjusted simultaneously with the springs 6 by a lug 13<d> engaging a slot in the sleeve 5, which is secured to the member 1 by a wire ring 17. A disc 16 secured to the member 3 indicates upward movement of this member and may be used to operate an acoustic or optical signal. A shaft 2 serves to centre the device. The arms of the springs 6 and 13 may increase in breadth and thickness towards their roots and may take the form shown in Fig. 7, in which one spring 18 is secured against rotation by pins 21 and is engaged by pins 20 on a rotatable spring 19. The device may also be used in tap wrenches. The Specification as open to inspection under Sect. 91 (3) (a) states also that the device may be used also in hand tools, die-stocks and as a toolholder or drill chuck, and may be incorporated in the drill or feed-spindles of machine tools. This subject-matter does not appear in the Specification as accepted.
GB16279/23A 1923-01-08 1923-06-22 Improvements in or relating to drilling and screw cutting devices Expired GB209385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT209385X 1923-01-08

Publications (1)

Publication Number Publication Date
GB209385A true GB209385A (en) 1924-07-31

Family

ID=3669668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16279/23A Expired GB209385A (en) 1923-01-08 1923-06-22 Improvements in or relating to drilling and screw cutting devices

Country Status (1)

Country Link
GB (1) GB209385A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004099639A1 (en) * 2003-05-02 2004-11-18 Siemens Vdo Automotive Corporation Clutch assembly for electric motors to prevent back drive
WO2008034435A2 (en) * 2006-09-21 2008-03-27 Jenoptik Laser, Optik, Systeme Gmbh Rotatable grip for a photographic camera

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004099639A1 (en) * 2003-05-02 2004-11-18 Siemens Vdo Automotive Corporation Clutch assembly for electric motors to prevent back drive
US6886678B2 (en) 2003-05-02 2005-05-03 Siemens Vdo Automotive Corporation Clutch assembly for electric motors to prevent back drive
WO2008034435A2 (en) * 2006-09-21 2008-03-27 Jenoptik Laser, Optik, Systeme Gmbh Rotatable grip for a photographic camera
WO2008034435A3 (en) * 2006-09-21 2008-07-24 Jenoptik Laser Optik Sys Gmbh Rotatable grip for a photographic camera

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