US1372482A - Chuck for holding tools and bars - Google Patents
Chuck for holding tools and bars Download PDFInfo
- Publication number
- US1372482A US1372482A US337675A US33767519A US1372482A US 1372482 A US1372482 A US 1372482A US 337675 A US337675 A US 337675A US 33767519 A US33767519 A US 33767519A US 1372482 A US1372482 A US 1372482A
- Authority
- US
- United States
- Prior art keywords
- chuck
- shank
- sleeve
- bars
- drill
- 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
Links
Images
Classifications
-
- 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
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
- B23B31/201—Characterized by features relating primarily to remote control of the gripping means
- B23B31/202—Details of the jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/20—Collet chucks
- B23B2231/2024—Non-circular surfaces of collets for the transmission of torque
-
- 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
- Y10T279/17487—Moving-cam actuator
- Y10T279/17504—Threaded cam sleeve
-
- 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
- Fig. 2 is an outside elevation of same.
- F ig. 3 is an elevation of a split sleeve which ts'inside the chuck.' v
- FIG. d is a plan view
- Fig. 5 an underside plan view of same.
- the shank a of the chuck has a surrounding iange a1, an
- the upper end may' be ⁇ closed in except for a flatsided slot b3 to engage with the flats formed on the end of a drill shank.
- the sleeve is in some cases fully open at both ends so that bars' or similar articles may be passed as far through as may be desired.
- the outer face of the nose may be suitably knurled or may be formed with a series of fiats c2 to admit of being engaged by a Spanner or Wrench.
- my improved chuck can be used either as an independent device, or form part of the spindle of a masuitable for turret lathes.
- a tool holding chuck comprising a tubular shank provided interiorly and exteriorly thereof with opposibely directed threaded portions, a sleeve having a threaded portion for engaging the interior thread of the shank, and a nose engaging the exterior thread and encircling said sleeve and adapt-- ed to engage the same upon rotation of the sleeve relatively to the shank.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Description
C. H. CLARE.
CHUCK Fon HOLDING TooLs AND BARS.
APPLICATION FILED NOV. 13.1919.
l C a a 2. y C a d a w 10.1.0
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,-UNITED STATES PATEN'P'M'OFFICE.
CHARLESHENRY CLARE, F LOWER BROUGHTON, SALFORD, ENGLAND.
Specification of Letters Patent.
CHUCK FOR HOLDING TOOLS AND BARS.
Patented Mar. 22, 1921.
Application filed November 13, 1919. Serial No. 337,675.
To all whom t may concern;
Be it known that I, CHARLES Henny CLARE, a subject ot' the Kin of Great Britain and lreland, residing at Rent street, Lower cned on to the article being held as the chuck commences to rotate, and the greater the resistance to turning offered by the article so held, the more intense is the grip of the chuck.
My invention will be better understood on reference to the accompanying sheet of drawings, in which Figure l is a part sectional elevation of a chuck made according to my invention.
Fig. 2 is an outside elevation of same.
F ig. 3 is an elevation of a split sleeve which ts'inside the chuck.' v
`Fig. d is a plan view, and
Fig. 5 an underside plan view of same.
The same lett-ers refer to similar parts throughout the several views.
As the principle of construction involved in my improved chuck will be the same Whatever type of article is being held, for
the convenience in this description I Shall refer to such article as a'drill.
According to my invention the shank a of the chuck has a surrounding iange a1, an
' internal recess a2 tapped with a left hand screw thread, and a' portion a3 'below the fiange screwed externally-with a right hand thread.` Adapted to be vscrewed into the recess @fis a split sleeve b with a tapered end b1 and having saw cuts b2 extending for a portionof the length. The upper end of the sleeve J2 is screw'e'd with a left hand thread to engage with the tapped portion of the recess ah The sleeveb may have a.
taper or parallel bore, and if desired, the upper end may' be` closed in except for a flatsided slot b3 to engage with the flats formed on the end of a drill shank. It should be mentioned that the sleeve is in some cases fully open at both ends so that bars' or similar articles may be passed as far through as may be desired.
A nose c with au internal vconical or taperi chine, and in this connection it is very ing chamber c1 is threaded at its upper end to engage with the threads on the portion a3 of the shank ai. The outer face of the nose may be suitably knurled or may be formed with a series of fiats c2 to admit of being engaged by a Spanner or Wrench.
The manner of operating my improved chuck is as follows:
Assuming the shank of a drill to have been inserted within the mouth of theV nose c and passed up through theV sleeve b unt1l the flats on the end engage with the flat sided slot 3; on the drill being pressed y against the Work it has to operate on and the shank a rotated, in the direction indicated bythe arrow on F ig. l, the statical Jfriction between the drill and the Work is sufficient to keep the former stationary together with the split sleeve b; this being so, there is a relative movement between the thread on the sleeve and the -internal threads of the shank, with the result, that the tapered end b1 of the sleeve is brought into close contact with theinclined Walls of the nose c. This causes the sleeve to contract, by reason of the provision of the slits L? and tightly grip the drill shank, which is then carried around With the chuck. The greater the resistance offered bythe Work to the tool in cutting or boring, the more intense will be the grip which the chuck has experiment lthat itis not essential to .ha-ve a flat sided slot in the top end of the sleeve, as the grip-of the sleeve on the drill 'is quite suiicient lto hold it. By reason of this a parallel shank drill may be held so as 't0 project any desired distance from the mouth of the chuck. Y A
It will be understood that my improved chuck can be used either as an independent device, or form part of the spindle of a masuitable for turret lathes. g
.My improved chuck, by reason of its large grip ing power can hold parallel shank drills as effectively as (or more so than) morse taper chucks engaging morse taper shank drills and since parallel shank drills are much less expensive than morse taper shank drills, the'use of my improved chuck results in an economygI the cost of the drills used.
It should, however, be explained that where a threaded nose is employed the turn ing movement of the shank a, (during the period when the statical friction of the drill is being overcome, and the tapered end b of the sleeve b bears upon the internal conicall face e of the nose) causes the nose to rise upon the right hand vscrew threads on the portion a3 ot the shank and so` augment vthe rapid and eiiicient grip of the chuck upon the tool being held.
Having now described my invention what I claim as new and desire to secure by Letters Patent, is
A tool holding chuck, comprising a tubular shank provided interiorly and exteriorly thereof with opposibely directed threaded portions, a sleeve having a threaded portion for engaging the interior thread of the shank, and a nose engaging the exterior thread and encircling said sleeve and adapt-- ed to engage the same upon rotation of the sleeve relatively to the shank.
In testimony whereof I have signed my name to this specification.
CHARLES HENRY CLARE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US337675A US1372482A (en) | 1919-11-13 | 1919-11-13 | Chuck for holding tools and bars |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US337675A US1372482A (en) | 1919-11-13 | 1919-11-13 | Chuck for holding tools and bars |
Publications (1)
Publication Number | Publication Date |
---|---|
US1372482A true US1372482A (en) | 1921-03-22 |
Family
ID=23321530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US337675A Expired - Lifetime US1372482A (en) | 1919-11-13 | 1919-11-13 | Chuck for holding tools and bars |
Country Status (1)
Country | Link |
---|---|
US (1) | US1372482A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749288C (en) * | 1939-07-03 | 1944-11-20 | Clamping device for rotating tools and workpieces, especially drills | |
US2436540A (en) * | 1944-08-31 | 1948-02-24 | Casco Products Corp | Hand-held power tool |
US2476874A (en) * | 1944-06-27 | 1949-07-19 | Johansson Erik Johannes | Quick grip chuck |
US2502854A (en) * | 1944-09-06 | 1950-04-04 | Union Twist Drill Company | Die adjustment device |
US2719722A (en) * | 1952-10-11 | 1955-10-04 | Universal Engineering Company | Quick change tool holder |
US5620188A (en) * | 1995-11-08 | 1997-04-15 | Ryobi North America | Router collet |
US20080314212A1 (en) * | 2007-06-21 | 2008-12-25 | Primetool Mfg, Inc. | Tool holding module |
US20090278324A1 (en) * | 2007-03-15 | 2009-11-12 | Peter Chen | Tool chucking apparatus |
US20100096814A1 (en) * | 2007-06-21 | 2010-04-22 | Peter Chen | Tool holding module |
CN101327525B (en) * | 2007-06-20 | 2012-10-03 | 翌润企业股份有限公司 | Module group connected with tool holder |
US20140119846A1 (en) * | 2012-10-26 | 2014-05-01 | Bruce O. Larsson | Wrench-based tap and die holders |
-
1919
- 1919-11-13 US US337675A patent/US1372482A/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749288C (en) * | 1939-07-03 | 1944-11-20 | Clamping device for rotating tools and workpieces, especially drills | |
US2476874A (en) * | 1944-06-27 | 1949-07-19 | Johansson Erik Johannes | Quick grip chuck |
US2436540A (en) * | 1944-08-31 | 1948-02-24 | Casco Products Corp | Hand-held power tool |
US2502854A (en) * | 1944-09-06 | 1950-04-04 | Union Twist Drill Company | Die adjustment device |
US2719722A (en) * | 1952-10-11 | 1955-10-04 | Universal Engineering Company | Quick change tool holder |
WO1997017155A1 (en) * | 1995-11-08 | 1997-05-15 | Ryobi North America, Inc. | Router collet |
US5620188A (en) * | 1995-11-08 | 1997-04-15 | Ryobi North America | Router collet |
US20090278324A1 (en) * | 2007-03-15 | 2009-11-12 | Peter Chen | Tool chucking apparatus |
US8888420B2 (en) * | 2007-03-15 | 2014-11-18 | Primetool Mfg, Inc. | Tool chucking apparatus |
CN101327525B (en) * | 2007-06-20 | 2012-10-03 | 翌润企业股份有限公司 | Module group connected with tool holder |
US20080314212A1 (en) * | 2007-06-21 | 2008-12-25 | Primetool Mfg, Inc. | Tool holding module |
US20100096814A1 (en) * | 2007-06-21 | 2010-04-22 | Peter Chen | Tool holding module |
US8821084B2 (en) | 2007-06-21 | 2014-09-02 | Primetool Mfg, Inc. | Tool holding module |
US20140119846A1 (en) * | 2012-10-26 | 2014-05-01 | Bruce O. Larsson | Wrench-based tap and die holders |
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