US3848865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool holding device
Assignee: Individual
•
Filing: 1974-01-18
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Granted: 1974-11-19
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Expires: 1994-01-18
Abstract
Abstract A device for holding machine cutting tools, such as dovetail form or shave tools and the like, which are used in lathes or automatic screw machines is disclosed. The device is adapted to securely hold the form or shave tool in a precise position while it is being sharpened on a precision surface grinder or the like. The device may be adjusted to selectively hold the tool in one of several precisely predetermined rake angles. The device has easily adjustable tightening means for use with dovetail form and shave tools and tightly holds the tool during grinding. The device has a pin that is inserted in one of the several openings which precludes any alignment error if the pin is completely inserted in the appropriately marked opening.
Inventors
- 👤 M Bird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:56
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
256 words
A device for holding cutting tools such as form tools and the like, while sharpening the same, the device comprising: a base frame having a generally flat base portion and a generally transverse portion extending outwardly from said base portion; a holding member having a generally flat front face and an aCutely angled abutment wall extending along one side of said front face, said wall being adapted to receive one side of a dovetail portion of the cutting tool, said holding member having a transverse extension for contacting the transverse portion of said base frame; means for pivotably connecting said transverse extension to said transverse portion to enable said front face to be angularly adjusted relative to said base frame; means for releasably locking said front face of said holding member in one of several predetermined angular positions, said locking means comprising a cooperative set of apertures in each of said base frame transverse portion and said holding member transverse extension and pin means adapted to be inserted therein, each of said sets being on a different radius from the pivotable connection so as to prohibit said pin means from being inserted into more than one aperture of said holding member transverse extension, once said pin means has been inserted into an aperture in said base frame transverse portion; and, means associated with said holding member for engaging the opposite side of said dovetail portion of the cutting tool and urging said dovetail portion toward said abutment wall to securely hold the tool in the device.
Claim 2
Independent Claim
256 words
A device for holding cutting tools such as form tools and the like, while sharpening the same, the device comprising: a base frame having a generally flat base portion and a generally transverse portion extending outwardly from said base portion; a holding member having a generally flat front face and an aCutely angled abutment wall extending along one side of said front face, said wall being adapted to receive one side of a dovetail portion of the cutting tool, said holding member having a transverse extension for contacting the transverse portion of said base frame; means for pivotably connecting said transverse extension to said transverse portion to enable said front face to be angularly adjusted relative to said base frame; means for releasably locking said front face of said holding member in one of several predetermined angular positions, said locking means comprising a cooperative set of apertures in each of said base frame transverse portion and said holding member transverse extension and pin means adapted to be inserted therein, each of said sets being on a different radius from the pivotable connection so as to prohibit said pin means from being inserted into more than one aperture of said holding member transverse extension, once said pin means has been inserted into an aperture in said base frame transverse portion; and, means associated with said holding member for engaging the opposite side of said dovetail portion of the cutting tool and urging said dovetail portion toward said abutment wall to securely hold the tool in the device.
Claim 3
Dependent Claim
90 words
A device as defined in claim 1 wherein said engaging means on said holding member comprises a holding element having a threaded aperture therein, said holding member having a recessed slot in which said element is slidable, and an elongated threaded shaft having handle means at one end thereof, so that rotation of said handle means rotates said threaded shaft and moves said slidable element along said slot, said element having an acutely angled side wall extending forwardly of said front face generally oppositely of said acutely angled abutment wall.
Claim 4
Dependent Claim
57 words
A device as defined in claim 1 wherein said holding member includes an upwardly directed aperture positioned substantially parallel to the plane of the front face, said holding member also including a smaller threaded aperture intersecting said aperture positioned parallel to the front face, said smaller aperture being adapted to receive a set screw or the like.
Claim 5
Dependent Claim
68 words
A device as defined in claim 1 wherein the angle of said holding member abutment wall relative to said front face is less than about 60*, so that as said engaging means on said holding member moves said dovetail portion towards said abutment wall, said dovetail portion is firmly urged against said flat front face and thereby insures that said cutting tool is positioned parallel to said face.
Claim 6
Dependent Claim
23 words
A device as defined in claim 2 wherein the angle of said side wall of said slidable element is less than about 60*.
Claim 7
Dependent Claim
58 words
A device as defined in claim 1 wherein said pivotable connection comprises a threaded bolt inserted through an enlarged aperture in said base frame transverse portion into a threaded aperture in said holding member transverse extension, so that rotation of said bolt in a predetermined direction tightens said holding member transverse extension against said base frame transverse portion.
Claim 8
Dependent Claim
32 words
A device as defined in claim 1 wherein the lower surface of said base frame includes at least two threaded apertures for attaching a side rake angle shim member or the like.
References Cited (Backward Citations)
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Cited
US693811A
Cited
US776553A
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US1206399A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |