US723872A - Dental handpiece. - Google Patents
Dental handpiece. Download PDFInfo
- Publication number
- US723872A US723872A US11256002A US1902112560A US723872A US 723872 A US723872 A US 723872A US 11256002 A US11256002 A US 11256002A US 1902112560 A US1902112560 A US 1902112560A US 723872 A US723872 A US 723872A
- Authority
- US
- United States
- Prior art keywords
- spindle
- ring
- casing
- dental handpiece
- tool
- 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 - Lifetime
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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
- A61C1/14—Tool-holders, i.e. operating tool holders, e.g. burr holders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17411—Spring biased jaws
- Y10T279/17529—Fixed cam and moving jaws
Definitions
- J MIA y fnl/1 TH Nonms crans co. Pnaoumo.. WASHINGTON. o, c.
- This invention relates to an improved dental handpiece, and has for its object improved means for facilitating the attachment of the dental drill to the chuck portion of the driving-tool spindle.
- Figure l is a longitudinal section of my improved den tal handpiece; and Fig. 2, a side view, partlyin section, of part of the same.
- the letter a represents the tubular casing or handpiece of the chuck, within which is adapted to rotate a spindle e, driven by a iexible shaft 71, in the usual manner.
- the spindle e is embraced by and adapted to slide within a tube f, which rotates, together with spindle e, in ball-bearings d of casing-a.
- spindle e is provided with a nin e, which projects into a longitudinal slot f of tubef.
- the free end of spindle e terminates in springjaws c., between which the shaft of the tool may be introduced.
- the spindle e carries near its rear end, between two fast collars s and intermediate ball-bearings, an inner rotatable ring n, provided with two radially-projecting pins m. These pins pass through two oblique slots 0 of the rear part b of casing a and are connected to an outer ring Z, rotatable around' the casing.
- the slots o terminate at each end in an enlargement adapted to accommodate the pins m audhold them in position.
- the ring Z is turned to the right, so that the pins m will move along the oblique slots 0, and in this way the ring l, as well as thering n, receive Serial No. 112,560. (No model.)
- a dental handpiece the combination with the casing having inclined slots in the rear end,of a rotary tube mounted therein, a rotary spindle mounted in said tube and having spring-jaws at its forward end, a ring loosely mounted on said spindle near its rear end, pins on the ring ad-apted to engage the inclined slots of the casing, collars fast on said spindle in front and rear of said ring, and the rotary sleeve, substantially as described.
- a dental handpiece the combination with theasing having inclined slots inits rear end, of a rotary tube mounted therein, an intermediate ball-bearing, a rotary spindle mounted in said tube and having spring-jaws at its forward end, a ring loosely mounted on said spindle near its rear en d for imparting axial movement to the spindle, pins on the ring adapted toeugage the inclined slots of the casing, collars fast on said spindle in front and rear of said ring, the rotary sleeve on the casing, and ball-bearings between the rotary tube and the casing, substantially as described.
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- 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)
Description
PATBNTBD MR. a1
W. HOMANN. DENTAL HANDPIBGE.
APPLICATION FILED JUNE 21, 1902.
I0 MODEL.
J MIA y fnl/1 TH: Nonms crans co. Pnaoumo.. WASHINGTON. o, c.
" STATES W'ILLY HOMANN, OF DUSSELDORF, GERMANY.
DENTAL HANDPIECE.
SPECIFICATION forming part of Letters Patent No. 723,872, dated March 31, 1903.
Application led .Tune 21, 1902.
To a/Z whom it may concern:
Be it known that I, WILL HOMANN, a citizen of Germany, residing at Dusseldorf, Germany, have invented new and useful Improvements in Handpieces for Dental En' gines, of which the following is a specificalion.
This invention relates to an improved dental handpiece, and has for its object improved means for facilitating the attachment of the dental drill to the chuck portion of the driving-tool spindle.
In the accompanying drawings, Figure lis a longitudinal section of my improved den tal handpiece; and Fig. 2, a side view, partlyin section, of part of the same.
The letter a represents the tubular casing or handpiece of the chuck, within which is adapted to rotate a spindle e, driven by a iexible shaft 71, in the usual manner. The spindle eis embraced by and adapted to slide within a tube f, which rotates, together with spindle e, in ball-bearings d of casing-a. The
spindle e is provided with a nin e, which projects into a longitudinal slot f of tubef. The free end of spindle e terminates in springjaws c., between which the shaft of the tool may be introduced. Thus by an aiially'rearward motion of spindle e within tube f the spring-jaws c will be drawn into the tube and contracted upon the tool A to hold it impl-ace.
The spindle e carries near its rear end, between two fast collars s and intermediate ball-bearings, an inner rotatable ring n, provided with two radially-projecting pins m. These pins pass through two oblique slots 0 of the rear part b of casing a and are connected to an outer ring Z, rotatable around' the casing. The slots o terminate at each end in an enlargement adapted to accommodate the pins m audhold them in position.
To fit a tool A to the handle, the ring Z is turned to the right, so that the pins m will move along the oblique slots 0, and in this way the ring l, as well as thering n, receive Serial No. 112,560. (No model.)
aforward screw like motion. This forward.
motion is transmitted to the spindle e by the forward collar s and causes the spring-jaws c to open by being projected beyond tubef, so that the tool may be removed. After another tool has been inserted between the jaws the ring Z is turned to the left, and thus both rings Z and n receive a rearward screw-like motion. Ring n transmits this motion by the rearward collar s to the spindle e, thus retracting the same. In this way the springjaws c are drawn into tubefand are contracted against the shaft of the tool A, so as to lock it to the handle.
1.l In a dental handpiece, the combination with the casing having inclined slots in the rear end,of a rotary tube mounted therein,a rotary spindle mounted in said tube and having spring-jaws at its forward end, a ring loosely mounted on said spindle near its rear end, pins on the ring ad-apted to engage the inclined slots of the casing, collars fast on said spindle in front and rear of said ring, and the rotary sleeve, substantially as described.
2. In a dental handpiece, the combination with theasing having inclined slots inits rear end, of a rotary tube mounted therein, an intermediate ball-bearing, a rotary spindle mounted in said tube and having spring-jaws at its forward end, a ring loosely mounted on said spindle near its rear en d for imparting axial movement to the spindle, pins on the ring adapted toeugage the inclined slots of the casing, collars fast on said spindle in front and rear of said ring, the rotary sleeve on the casing, and ball-bearings between the rotary tube and the casing, substantially as described.
Signed by me at Dusseldorf, Germany, this 2d day of June, 1902.
WILLY HOMANN. Witnesses:
WILLIAM EssENwEIN,
PETER LIEBER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11256002A US723872A (en) | 1902-06-21 | 1902-06-21 | Dental handpiece. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11256002A US723872A (en) | 1902-06-21 | 1902-06-21 | Dental handpiece. |
Publications (1)
Publication Number | Publication Date |
---|---|
US723872A true US723872A (en) | 1903-03-31 |
Family
ID=2792385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11256002A Expired - Lifetime US723872A (en) | 1902-06-21 | 1902-06-21 | Dental handpiece. |
Country Status (1)
Country | Link |
---|---|
US (1) | US723872A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2851777A (en) * | 1954-06-24 | 1958-09-16 | Hoffmeister Erich | Tool for grinding, polishing, boring and milling for dental and medical purposes |
-
1902
- 1902-06-21 US US11256002A patent/US723872A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2851777A (en) * | 1954-06-24 | 1958-09-16 | Hoffmeister Erich | Tool for grinding, polishing, boring and milling for dental and medical purposes |
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