GB809518A - Safety torque driver - Google Patents

Safety torque driver

Info

Publication number
GB809518A
GB809518A GB25426/56A GB2542656A GB809518A GB 809518 A GB809518 A GB 809518A GB 25426/56 A GB25426/56 A GB 25426/56A GB 2542656 A GB2542656 A GB 2542656A GB 809518 A GB809518 A GB 809518A
Authority
GB
United Kingdom
Prior art keywords
rollers
drive
driven
torque
shell
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
GB25426/56A
Inventor
Bernard Raymond Better
John William Lehde Jr
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.)
SCULLY JONES AND CO
Original Assignee
SCULLY JONES AND 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
Priority to US521675A priority Critical patent/US2889022A/en
Priority to CH339464D priority patent/CH339464A/en
Application filed by SCULLY JONES AND CO filed Critical SCULLY JONES AND CO
Priority to GB25426/56A priority patent/GB809518A/en
Publication of GB809518A publication Critical patent/GB809518A/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
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/202—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type
    • F16D43/204—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with intermediate balls or rollers
    • F16D43/206—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

809,518. Drilling; tapping. SCULLYJONES & CO. Aug. 20, 1956, No. 25426/56. Class 83 (3). [Also in Group XXIV] A safe-torque clutch for screw-thread tapping or drilling comprises a driving-shell 10 having a degree of resilience with a conical-bore 12, a driven member 16 with a conical-end 17 spaced from the bore 12, and sets of rollers 13, 34 arranged between the two members. The rollers 34 are maintained in fixed positions relative to the driven part 17 by a cage 32, whilst the rollers 13 are held by a free-cage 29 which is acted upon by a spring- pressed drag-ring 28 so that when the drive is in the direction of the arrow, Fig. 3, the rollers 13 are moved into the wedge-driving position shown to transmit a torque from the driving to the driven member. At a predetermined safe-torque the rollers 13 will ride over the tops of the rollers 34 by deforming the shell 10 to break the drive. The rollers 13 are held in a drive-released position, intermediate the rollers 34, by balls 39 in longitudinal grooves 40 in the outer cage 29 co-operating with a control groove 38 in the inner cage 32. Reversal of the drive will drive the driven-member reversely unless the safe-torque is exceeded. If overriding does not occur in the reverse drive, the rollers 13 will be re-set ready for the forwarddrive, but if over-riding does occur then a resetting operation is necessary, which may be done manually. The driven-member is maintained in axial-relation to the driving-shell 10 by a screwed-sleeve 23, ball-bearing 21 and a locking sleeve 41. The screwed sleeve 23 can adjust the relative axial position of the shell 10 and driven-cone 17 to vary the safe-torque to be transmitted.
GB25426/56A 1955-07-13 1956-08-20 Safety torque driver Expired GB809518A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US521675A US2889022A (en) 1955-07-13 1955-07-13 Double roller torque driver
CH339464D CH339464A (en) 1956-08-20 1956-07-16 Torque-limited chuck
GB25426/56A GB809518A (en) 1956-08-20 1956-08-20 Safety torque driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25426/56A GB809518A (en) 1956-08-20 1956-08-20 Safety torque driver

Publications (1)

Publication Number Publication Date
GB809518A true GB809518A (en) 1959-02-25

Family

ID=10227471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25426/56A Expired GB809518A (en) 1955-07-13 1956-08-20 Safety torque driver

Country Status (2)

Country Link
CH (1) CH339464A (en)
GB (1) GB809518A (en)

Also Published As

Publication number Publication date
CH339464A (en) 1959-06-30

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