GB215172A - Improvements in or relating to dental drilling apparatus - Google Patents

Improvements in or relating to dental drilling apparatus

Info

Publication number
GB215172A
GB215172A GB990623A GB990623A GB215172A GB 215172 A GB215172 A GB 215172A GB 990623 A GB990623 A GB 990623A GB 990623 A GB990623 A GB 990623A GB 215172 A GB215172 A GB 215172A
Authority
GB
United Kingdom
Prior art keywords
casing
parts
drill
sleeve
spindle
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
GB990623A
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.)
OLUF THORSEN
Original Assignee
OLUF THORSEN
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 OLUF THORSEN filed Critical OLUF THORSEN
Priority to GB990623A priority Critical patent/GB215172A/en
Priority to DET28712D priority patent/DE426645C/en
Publication of GB215172A publication Critical patent/GB215172A/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
    • A61C1/10—Straight hand-pieces

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

215,172. Thorsen, O. April 11, 1923. Dental and like engines.-A spindle 2 fixed to a drill 4 is journaled in a casing 1 which is divided longitudinally into two or more parts held together by a sleeve 7 or by one or more rings which are readily removable so that the casing may be taken apart for cleaning the parts. A U-shaped cotter pin 9 fits around a grooved portion of the drill, each leg of the cotter passing through one of the parts of the casing. The drill may be inserted in a recess in the spindle or connected therewith through geared wheels ani a shaft. The sleeve may be secured to the casing by a screw 18, and also by a spring (not shown), which engages with the end of the sleeve and serves as a means for attaching the casing to the connecting-piece for a flexible shaft. The two parts of the casing may be interlocked by means of a Z-shaped joint.
GB990623A 1923-04-11 1923-04-11 Improvements in or relating to dental drilling apparatus Expired GB215172A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB990623A GB215172A (en) 1923-04-11 1923-04-11 Improvements in or relating to dental drilling apparatus
DET28712D DE426645C (en) 1923-04-11 1924-04-08 Drill holders, in particular for dental purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB990623A GB215172A (en) 1923-04-11 1923-04-11 Improvements in or relating to dental drilling apparatus

Publications (1)

Publication Number Publication Date
GB215172A true GB215172A (en) 1924-05-08

Family

ID=9880976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB990623A Expired GB215172A (en) 1923-04-11 1923-04-11 Improvements in or relating to dental drilling apparatus

Country Status (2)

Country Link
DE (1) DE426645C (en)
GB (1) GB215172A (en)

Also Published As

Publication number Publication date
DE426645C (en) 1926-03-16

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