GB809520A - Safe torque drivers - Google Patents

Safe torque drivers

Info

Publication number
GB809520A
GB809520A GB25429/56A GB2542956A GB809520A GB 809520 A GB809520 A GB 809520A GB 25429/56 A GB25429/56 A GB 25429/56A GB 2542956 A GB2542956 A GB 2542956A GB 809520 A GB809520 A GB 809520A
Authority
GB
United Kingdom
Prior art keywords
rollers
torque
driving
cage
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
GB25429/56A
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 CH337705D priority Critical patent/CH337705A/en
Application filed by SCULLY JONES AND CO filed Critical SCULLY JONES AND CO
Priority to GB25429/56A priority patent/GB809520A/en
Publication of GB809520A publication Critical patent/GB809520A/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
    • 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

Abstract

809,520. Drilling; screwing-up nuts &c. SCULLY-JONES & CO. Aug. 20, 1956, No. 25429/56. Class 83 (3). [Also in Group XXIV] A safe-torque clutch for driving drills or taps, of for setting nuts and studs, comprises a driving shell 15 having a degree of resilience and a cylindrical bore, a driven member 18 with two oppositely-disposed cam flats 27, 28, adjacent flats 31, 32, and connecting eccentric surfaces 33, 34, and a pair of diametricallyopposite rollers 29, 30 between the members retained by a cage 37. For forward-driving in the direction of the arrow in Fig. 7, the rollers 29, 30 assume the wedge-driving positions shown, and torque is transmitted to the driven member 18. On the safe torque being exceeded the rollers ride over the high-spots of the camflats 27, 28 with deformation of the shell 15, and down the surfaces 33, 34 to release the drive. The rollers are retained in non-driving positions by the cage 37, which has a limited rotation relative to the driven member 18, provided by a lug 41 thereon engaging in a part-circular recess in the end of the cage. On reversal of the drive, the rollers 29, 30 roll up the surfaces 33, 34 to their original positions on the flats 27, 28. The value of the safe torque to be transmitted can be adjusted by reducing the effective length or diameter of the rollers. In a modification the outer surface of the shell 15 is conical and a mating conical sleeve is screwed over it with an adjustable clearance, or with any desired degree of pressure so that the resistance to deformation, and hence the transmissable-torque, may be varied.
GB25429/56A 1956-08-20 1956-08-20 Safe torque drivers Expired GB809520A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH337705D CH337705A (en) 1956-08-20 1956-08-13 Torque-limited chuck
GB25429/56A GB809520A (en) 1956-08-20 1956-08-20 Safe torque drivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25429/56A GB809520A (en) 1956-08-20 1956-08-20 Safe torque drivers

Publications (1)

Publication Number Publication Date
GB809520A true GB809520A (en) 1959-02-25

Family

ID=10227523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25429/56A Expired GB809520A (en) 1956-08-20 1956-08-20 Safe torque drivers

Country Status (2)

Country Link
CH (1) CH337705A (en)
GB (1) GB809520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610340A (en) * 1982-11-13 1986-09-09 Vorwerk & Co. Interholding Gmbh Overload safety on clutches

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632922C2 (en) * 1976-07-22 1983-11-24 Hubert Dipl.-Ing. 5820 Gevelsberg Bald Use of a positioning device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610340A (en) * 1982-11-13 1986-09-09 Vorwerk & Co. Interholding Gmbh Overload safety on clutches

Also Published As

Publication number Publication date
CH337705A (en) 1959-04-15

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