US1406265A - Cutting tool - Google Patents
Cutting tool Download PDFInfo
- Publication number
- US1406265A US1406265A US410615A US41061520A US1406265A US 1406265 A US1406265 A US 1406265A US 410615 A US410615 A US 410615A US 41061520 A US41061520 A US 41061520A US 1406265 A US1406265 A US 1406265A
- Authority
- US
- United States
- Prior art keywords
- tool
- bit
- channel
- cutting tool
- face
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
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- 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
- Y10T407/00—Cutters, for shaping
- Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
- Y10T407/2222—Tool adjustable relative to holder
- Y10T407/2252—Rectilinearly
- Y10T407/2262—Tool gripped directly by set screw
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- 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
- Y10T407/00—Cutters, for shaping
- Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
Definitions
- My invention relates to that class of cutting tools which comprise a tool or bit mounted in a tool holder, and used on lathes and other machines of similar type, and is directed more particularly to the bit and its mounting.
- the sockets or channels for receiving the bit have been of excessive cross sectional dimensions to admit the facile insertion of the bit whose exterior surfaces usually have more or less accretions or foreign particles thereon.
- the clamping screw has for this reason been ineffective to insure a tight seating of the bit in its channel.
- the essential objects of my invention are to overcome the above inefiiciency; to insure a rigid seating of the bit, and to make a transverse shifting of the latter in its seat impossible.
- Figure 6 a modified form of my inventlon taken on a line corresponding to line 3-3 of Figure 2.
- FIG. 8 is a tool holder comprising the usual flat shank or shaft portion 9 and head portion 10.
- the head and shank are provided with an inclined socket or channel 12 extending from an intermediate portion of the front of the head to an opening 13 in the bottom face of the shank, as shown in Fig. 8.
- the opening 13 may, however, be omitted as shown in Figure with out departing from the spirit of my invention.
- the channel is bounded by a plane upper face 15, plane parallel lateral faces 16 at right angles to the face 15, and a rounded or partially cylindrical lower face 17, as shown in Figure 5. wherein the bit is omitted.
- T he tool or bit represented in a general way by 19, is oblong in form having one or more cutting faces 20 of any usual or con.- venient form on one end.
- This tool or bit has a plane upper face 22, and parallel lateral faces 24L disposed at right angles to each other, and a rounded or semi cylindrical bottom face 25.
- the transverse dimensions of the bit are such as to permit its admission into the channel 12 as a sliding or running fit, with the portion 25 registering in its seat 17.
- the head portion 10' of the holder has a vertically inclined threaded opening 27 entering the channel and disposed at right angles to the latter.
- the shank 28 of a binding screw 29 having the usual squared head 30.
- the end of the clamping screw is adapted to engage the face 22 of the bit, and frictionally maintains the latter in any position of longitudinal adjustment in the channel.
- the contacting surfaces of the tool and its socket be such that when the set screw is tightened the tool will be automatically brought to its correct position. so that the tool cannot be shifted during the cutting operation.
- the bottom of the tool the form shown, with its rounded surface and its opposite sides parallel and the top side at right angles to the said sides, and by making the walls of the socket in which the tool is received of a corresponding shape the tool can normally be made a tighter fit in the socket and when the set screw is tightened, if the tool should be so disposed with relation to the socket that its walls are not exactly co-related, as soon as pressure is applied to the set screw the tool will be caused to rock more or less until it is brought into such co-relation that all possibility of lateral movement of the tool in the socket is absolutely prevented.
- the tool is self-centered by the adjustment of the set screw, finding a perfect bearing and that in such shape that all tendency to move laterally is overcome. This automatic seating is made possible by the rounded contacting surfaces of the tool and bottom of the socket.
- a holder provided with an inclined channel comprising transversely rectangular upper and lateral portions and a partially cylindrical lower portion, a bit mounted in the channel comprising aplane top face having cutting edges, lateral faces disposed at right angles to the top face, and a partially cylindrical bottom face, said bottom face registering in the partially cylindrical por- Men of the channel, and a clamping screw in the holder adapted to engage the top face of the bit.
- a bit having a transversely convex bottom and a body with substantially parallel lateral faces and an upper face at substantially a right 2L1I1gl to said faces and having a cutting ec ge.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
J. W. LAWSON.
CUTTING TOOL.
APPLICATION FILED SEPT. 16. I920.
1 ,406,265, Patented Feb. 14, 1922.
IN VEN TOR. w fife 144% BY m7; 2 W F \q. 6 ATTORNEY UNITED STATES PATENT OFFICE.
CUTTING TOOL.
naoascs.
Specification of Letters Patent.
Patented Feb. 14, 1922.
Application filed September 16, 1920. Serial No. 410,615.
To all whom it may concern:
Be it known that I, JAMns W. LAWSON, a citizen of the United States, residing at East'Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improve ments in Cutting Tools, of which the following is a specification.
My invention relates to that class of cutting tools which comprise a tool or bit mounted in a tool holder, and used on lathes and other machines of similar type, and is directed more particularly to the bit and its mounting.
Heretofore the sockets or channels for receiving the bit have been of excessive cross sectional dimensions to admit the facile insertion of the bit whose exterior surfaces usually have more or less accretions or foreign particles thereon. The clamping screw has for this reason been ineffective to insure a tight seating of the bit in its channel.
The essential objects of my invention are to overcome the above inefiiciency; to insure a rigid seating of the bit, and to make a transverse shifting of the latter in its seat impossible.
To the above ends essentially my invention consists of such parts and combinations of parts as fall. within the scope of the appended claims.
In the accompanying drawings which form a part of this specification Figures 1 and 2, are a side elevation and a plan view respectively of a cutting tool embodying my invention,
Figure 8, an enlarged partial section of a portion of the same on line 33 of Fig. 2,
Figure a, a perspective view of the bit,
Figure 5, an enlarged section on line 55 of Figure 1, and
Figure 6, a modified form of my inventlon taken on a line corresponding to line 3-3 of Figure 2.
Like reference character's indicate like parts throughout the views.
In the drawings 8 is a tool holder comprising the usual flat shank or shaft portion 9 and head portion 10. The head and shank are provided with an inclined socket or channel 12 extending from an intermediate portion of the front of the head to an opening 13 in the bottom face of the shank, as shown in Fig. 8. The opening 13 may, however, be omitted as shown in Figure with out departing from the spirit of my invention. In detail the channel is bounded by a plane upper face 15, plane parallel lateral faces 16 at right angles to the face 15, and a rounded or partially cylindrical lower face 17, as shown in Figure 5. wherein the bit is omitted.
T he tool or bit, represented in a general way by 19, is oblong in form having one or more cutting faces 20 of any usual or con.- venient form on one end. This tool or bit has a plane upper face 22, and parallel lateral faces 24L disposed at right angles to each other, and a rounded or semi cylindrical bottom face 25.
The transverse dimensions of the bit are such as to permit its admission into the channel 12 as a sliding or running fit, with the portion 25 registering in its seat 17.
The head portion 10' of the holder has a vertically inclined threaded opening 27 entering the channel and disposed at right angles to the latter. In the orifice is the shank 28 of a binding screw 29 having the usual squared head 30. The end of the clamping screw is adapted to engage the face 22 of the bit, and frictionally maintains the latter in any position of longitudinal adjustment in the channel.
It is important that the contacting surfaces of the tool and its socket be such that when the set screw is tightened the tool will be automatically brought to its correct position. so that the tool cannot be shifted during the cutting operation. By giving the bottom of the tool the form shown, with its rounded surface and its opposite sides parallel and the top side at right angles to the said sides, and by making the walls of the socket in which the tool is received of a corresponding shape the tool can normally be made a tighter fit in the socket and when the set screw is tightened, if the tool should be so disposed with relation to the socket that its walls are not exactly co-related, as soon as pressure is applied to the set screw the tool will be caused to rock more or less until it is brought into such co-relation that all possibility of lateral movement of the tool in the socket is absolutely prevented. In other words, the tool is self-centered by the adjustment of the set screw, finding a perfect bearing and that in such shape that all tendency to move laterally is overcome. This automatic seating is made possible by the rounded contacting surfaces of the tool and bottom of the socket.
I claim a 1. In a cutting tool of the character set forth, a holder provided with an inclined channel comprising transversely rectangular upper and lateral portions and a partially cylindrical lower portion, a bit mounted in the channel comprising aplane top face having cutting edges, lateral faces disposed at right angles to the top face, and a partially cylindrical bottom face, said bottom face registering in the partially cylindrical por- Men of the channel, and a clamping screw in the holder adapted to engage the top face of the bit.
2. As a new article of manufacture, a bithaving a transversely convex bottom and a body with substantially parallel lateral faces and an upper face at substantially a right 2L1I1gl to said faces and having a cutting ec ge.
In testimony whereof I have aflixed my signature.
JAMES W. LAWSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US410615A US1406265A (en) | 1920-09-16 | 1920-09-16 | Cutting tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US410615A US1406265A (en) | 1920-09-16 | 1920-09-16 | Cutting tool |
Publications (1)
Publication Number | Publication Date |
---|---|
US1406265A true US1406265A (en) | 1922-02-14 |
Family
ID=23625492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US410615A Expired - Lifetime US1406265A (en) | 1920-09-16 | 1920-09-16 | Cutting tool |
Country Status (1)
Country | Link |
---|---|
US (1) | US1406265A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3149400A (en) * | 1953-07-13 | 1964-09-22 | Breuning Robert | Tool arrangement |
US3599303A (en) * | 1969-01-21 | 1971-08-17 | Valeron Corp | Cutting tool insert |
US6354179B1 (en) * | 1997-04-08 | 2002-03-12 | Komet Praezisionswerkezeuge Robert Breuning Gmbh | Fixing device for tools |
-
1920
- 1920-09-16 US US410615A patent/US1406265A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3149400A (en) * | 1953-07-13 | 1964-09-22 | Breuning Robert | Tool arrangement |
US3599303A (en) * | 1969-01-21 | 1971-08-17 | Valeron Corp | Cutting tool insert |
US6354179B1 (en) * | 1997-04-08 | 2002-03-12 | Komet Praezisionswerkezeuge Robert Breuning Gmbh | Fixing device for tools |
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