GB741273A - Improvements in slip joint connections and the like for dentistry machines - Google Patents

Improvements in slip joint connections and the like for dentistry machines

Info

Publication number
GB741273A
GB741273A GB35798/53A GB3579853A GB741273A GB 741273 A GB741273 A GB 741273A GB 35798/53 A GB35798/53 A GB 35798/53A GB 3579853 A GB3579853 A GB 3579853A GB 741273 A GB741273 A GB 741273A
Authority
GB
United Kingdom
Prior art keywords
cord pulley
cord
pulley
hub
drive shaft
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
GB35798/53A
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
Publication of GB741273A publication Critical patent/GB741273A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

741,273. Dental engines. KALTENBACH, A., and HOFFMEISTER, E. Dec. 23, 1953 [March 30, 1953], No. 35798/53. Class 81(2). A dental attachment such as a handpiece or slip joint connection 1 comprises a sleeve within which is mounted a rotatable drive shaft carrying a first cord pulley 3 rotatable with the shaft and having a hub 4 on which is arranged a second cord pulley 5 of larger diameter than the first, the second cord pulley 5 being axially displaceable between an inoperative position beside the first cord pulley 3 and an operative position over the first cord pulley 3 so that a driving cord of a dental engine can be engaged over either the first cord pulley 3 or the second cord pulley 5 according to the speed at which the drive shaft is to be rotated. The hub 4 of the first cord pulley 3 is outwardly extended and is provided with an axial groove 8 for the reception of a grub screw 6 which secures the second cord pulley 5 against rotation relative to the hub 4. A spring-loaded brake shoe 9 is provided between the hub 4 and the hub of the larger cord pulley 5. For rotation of the drive shaft at normal speeds the larger cord pulley 5 is arranged over the smaller cord pulley 3 and is rotated by the driving cord of the engine. To rotate the drive shaft at higher speeds the larger cord pulley 5 is displaced axially and the driving cord engaged over the smaller cord pulley 3. The slip joint connection 1 within which the drive shaft rotates is connected to a joint shaft 2 by a wrist joint frame element 12 which by means of a grub screw 14 engages a peripheral groove in the joint shaft 2 permitting limited rotation of the slip joint connection about the joint shaft 2.
GB35798/53A 1953-03-30 1953-12-23 Improvements in slip joint connections and the like for dentistry machines Expired GB741273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE741273X 1953-03-30

Publications (1)

Publication Number Publication Date
GB741273A true GB741273A (en) 1955-11-30

Family

ID=6644596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35798/53A Expired GB741273A (en) 1953-03-30 1953-12-23 Improvements in slip joint connections and the like for dentistry machines

Country Status (1)

Country Link
GB (1) GB741273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054186A (en) * 1957-09-06 1962-09-18 Buermoos Dentalwerk Wrist joint assembly for dental purposes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054186A (en) * 1957-09-06 1962-09-18 Buermoos Dentalwerk Wrist joint assembly for dental purposes

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