US20080085666A1 - Hand engraving sharpening device - Google Patents
Hand engraving sharpening device Download PDFInfo
- Publication number
- US20080085666A1 US20080085666A1 US11/545,873 US54587306A US2008085666A1 US 20080085666 A1 US20080085666 A1 US 20080085666A1 US 54587306 A US54587306 A US 54587306A US 2008085666 A1 US2008085666 A1 US 2008085666A1
- Authority
- US
- United States
- Prior art keywords
- facets
- graver
- template
- point
- template plate
- 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.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/60—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
Definitions
- the invention relates to a sharpening fixture, more particularly to a hand engraving sharpening apparatus for use to rapidly and accurately index a graver to specific angles for grinding specialized points.
- U.S. Pat. No. 7,032,586 to Lindsay discloses a unique engraving cutter point that requires a more accurate fixture than presently available to attain the geometric relationships to reproduce the point. Applicant has found that even a half a degree error in the geometric relationship can affect the clearance of the cutting edge and how well the point works to prevent heel drag as described in U.S. Pat. No. 7,032,586 to Lindsay. With available prior art dual angle graver grinding fixtures, it is tedious to sharpen the applicant's type of point. It is easy to become confused and frustrated trying to set the dual angle fixtures properly. If there are errors in accuracy in this type of indexing fixtures it contributes to the point not being ground correctly as well as making it difficult to setup and retouch up a point when it becomes dull.
- the templates are easily replaceable for grinding additional facets or for a variety of style of graver points with a great deal of accuracy and re-sharpening repeatability.
- the use of prefigured templates is less confusing and more accurate for beginners as well as professionals to sharpen specialized graver points accurately such as disclosed in U.S. Pat. No. 7,032.586 to Lindsay.
- FIG. 1 is a perspective view of a Hand Engraving Sharpening Device constructed in accordance with the present preferred invention
- FIG. 2 is a side view of the present invention
- FIG. 3 through FIG. 7 are six views of a single point engraving cutter point that the present invention with its example templates are made to sharpen;
- FIG. 8 and FIG. 9 are perspective views of the graver holder 10 ;
- FIG. 10 is a side view of the graver holder 10 ;
- FIG. 11 is an end view of the graver holder 10 ;
- FIG. 12 is sectional view of the graver holder 10 ;
- FIG. 13 is a perspective view of collar 14 ;
- FIG. 14 is an end view of template 13 ;
- FIG. 15 is an end view of template 12 ;
- FIG. 16 is a perspective view of the present invention illustrating use of template 12 while grinding the heel-relief of the point;
- FIG. 17 is a perspective view of the present invention illustrating use of template 13 while grinding the face of the graver point;
- FIG. 18 is a perspective view of the present invention illustrating use of template 13 while grinding the heel of the graver point.
- FIG. 1 and FIG. 2 The preferred embodiment of a hand engraving sharpening device in accordance with the present invention is illustrated in FIG. 1 and FIG. 2 .
- the apparatus consists of a flat surface 6 , a grinding lap 4 , a graver holder 10 , a collar 14 , a thumbscrew 16 , a template-A 12 , a template-B 13 , and a graver 2 .
- the graver holder 10 is further illustrated in FIG. 8 , FIG. 9 , FIG. 10 , FIG. 11 , and FIG. 12 and consists of a shaft 42 , an annular ring 34 , an index pin 38 , a setscrew 40 , and a tool hole 36 .
- the collar 14 is further illustrated in FIG.
- Template-A 12 is further illustrated in FIG. 14 and consists of a hole 58 that is made for a sliding fit with shaft 42 ( FIG. 9 ), index hole 60 that is made for a sliding fit with index pin 38 ( FIG. 12 ), taper indexes 68 , 70 , and 72 , and relief indexes 62 and 64 .
- Template-B 13 is further illustrated in FIG. 15 and consists of a hole 48 that is made for a sliding fit with shaft 42 ( FIG. 9 ), index hole 50 that is made for a sliding fit with index pin 38 ( FIG. 12 ), face index 56 , and heel indexes 52 and 54 .
- graver 2 is an example graver and point that the sample templates in the invention are made to sharpen.
- This example graver point (graver 2 ) is further illustrated in the six views of FIG. 3 through FIG. 7 .
- the point of graver 2 consists of various facets that are labeled as follows:
- heel facets 30 and 32 are identical to heel facets 30 and 32 .
- a graver 2 ( FIG. 1 ) is inserted into the tool hole 36 ( FIG. 8 through FIG. 12 ) that is in the front end of tool holder 10 and setscrew 40 is locked to hold the graver 2 in place.
- the appropriate template is chosen, either template 12 or template 13 ( FIG. 16 and FIG. 17 ). Template 12 will be chosen first in this example. Referring to FIG. 9 , template 12 is slid onto shaft 42 via hole 58 ( FIG. 14 ) and index pin 38 ( FIG.
- taper indexes 68 , 70 , and 72 correspond with the graver point taper facets 18 , 20 , and 22 illustrated in FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 .
- relief indexes 62 and 64 correspond with graver point heel-relief facets 26 and 28 in FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 .
- FIG. 16 and FIG. 1 illustrate the use of template 12 .
- heel indexes 52 , 54 and 64 correspond with graver point heel facets 30 and 32 in FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 .
- face index 56 corresponds with graver point face facet 24 in FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 .
- distance D 1 and distance D 2 need to be given to the user so he or she knows to position the graver a predetermined distance from a template and that grinding lap 4 is used at predetermined height.
- the invention provides an improved sharpener for specialized or even non-specialized types of engraving points.
- the use of templates makes it much easier for the engraver, jeweler, carver or crafts person to concentrate on his or her work rather than spending time figuring out angles and math in order to sharpen their engraving points.
- Points such as disclosed in U.S. Pat. No. 7,032.586 to Lindsay are much easier for the user to reproduce with the present invention.
- These pre-figured templates can be manufactured for all types of graver and carving points. Because the templates are made to be replaced easily for grinding various facets and for various styles of points, the invention will both increase the quality of work as well as speed of the user.
- Graver holder 10 illustrated in FIG. 8 , FIG. 9 , FIG. 10 , FIG. 11 , and FIG. 12 could be adapted to have a second type of graver holder at the opposite end of shaft 42 for holding and sharpening graver points, such as the type of tool graver holder that utilizes replaceable carrier blocks as disclosed in U.S. Pat. No. 5,203,417.
- Grinding lap 4 could also be a power lap, wherein the lap spins or reciprocates by the presences of a power movement source such as a motor.
- Magnetism or magnetic strip could be utilized to aid in holding the templates in place on flat surface 6 ( FIG. 1 , FIG. 2 ). This would be useful for temporary unattended operation, by permitting the operator to avoid holding the apparatus in place if a lot of material needs to be taken off to grind one or more of the facets being ground.
- the templates disclosed are prefigured and fixed without an adjustment method for adjusting the profile shape and angles of the templates.
- An equivalent could be made wherein the templates are user adjustable and still allow the replacement uniqueness of the invention be utilized by having the templates easily replaced. Users could then set the templates to their liking for a particular type of point and plan on leaving them set there and switch to another template for other shaped point or for more required facets for a particular specialized point.
- the sharpening device disclosed was originally designed for sharpening graver points for engraving artists and jewelers, however the device can be utilized in other fields needing to shape or place facets on an object.
Abstract
A sharpening device that utilizes templates for sharpening specific shaped points. The templates are easily replaceable for grinding additional facets or for additional styles of points.
Description
- 1. Field of Invention
- The invention relates to a sharpening fixture, more particularly to a hand engraving sharpening apparatus for use to rapidly and accurately index a graver to specific angles for grinding specialized points.
- 2. Description of Prior Art
- Since the 19th century, hand engravers and jewelers have used an abrasive surface such as an Arkansas stone or hone to sharpen hand engraving points. More recently, adjustable fixtures along with a motorized hone to spin a stone or diamond grinding lap have been utilized. These fixtures give positioning to the graver in two rotational axes. One axis is the rotational angle that is aligned with the linear axis of the graver shank and the second is the loft angle, which is at a right angle to the linear axis of the graver shank. These dual angle fixtures have five degree division marks and allow the user to rotate them to the desired position and manually tighten them into place.
- U.S. Pat. No. 7,032,586 to Lindsay discloses a unique engraving cutter point that requires a more accurate fixture than presently available to attain the geometric relationships to reproduce the point. Applicant has found that even a half a degree error in the geometric relationship can affect the clearance of the cutting edge and how well the point works to prevent heel drag as described in U.S. Pat. No. 7,032,586 to Lindsay. With available prior art dual angle graver grinding fixtures, it is tedious to sharpen the applicant's type of point. It is easy to become confused and frustrated trying to set the dual angle fixtures properly. If there are errors in accuracy in this type of indexing fixtures it contributes to the point not being ground correctly as well as making it difficult to setup and retouch up a point when it becomes dull.
- Before the advent of the dual angle fixtures in the market, tilt fixtures were utilized. U.S. Pat. Nos. 975,329 and 4,078,338 disclosed tilt fixtures that are universal and adjustable for setting angles. However, these sharpening fixtures also depended on the user having the knowledge and skill to set exactly which angles are needed in order to get good results with specialized graver's points. A sharpening fixture is needed that is fool proof, allowing anyone to easily sharpen specialized points such as disclosed in U.S. Pat. No. 7,032,586. A device such as this is possible by the use of replaceable templates that have the exact settings for a particular point already prefigured. It would allow a user to sharpen specialized points easily and be able to repeat the accuracy exactly.
- It is the object of this invention to provide an improved hand engraving sharpening device that utilizes pre-determined templates for specific graver points. The templates are easily replaceable for grinding additional facets or for a variety of style of graver points with a great deal of accuracy and re-sharpening repeatability. The use of prefigured templates is less confusing and more accurate for beginners as well as professionals to sharpen specialized graver points accurately such as disclosed in U.S. Pat. No. 7,032.586 to Lindsay.
- The preferred embodiment of the invention is described below with reference to attached drawing figures, wherein:
-
FIG. 1 ; is a perspective view of a Hand Engraving Sharpening Device constructed in accordance with the present preferred invention; -
FIG. 2 ; is a side view of the present invention; -
FIG. 3 throughFIG. 7 ; are six views of a single point engraving cutter point that the present invention with its example templates are made to sharpen; -
FIG. 8 andFIG. 9 ; are perspective views of thegraver holder 10; -
FIG. 10 ; is a side view of thegraver holder 10; -
FIG. 11 ; is an end view of thegraver holder 10; -
FIG. 12 ; is sectional view of thegraver holder 10; -
FIG. 13 ; is a perspective view ofcollar 14; -
FIG. 14 ; is an end view oftemplate 13; -
FIG. 15 ; is an end view oftemplate 12; -
FIG. 16 ; is a perspective view of the present invention illustrating use oftemplate 12 while grinding the heel-relief of the point; -
FIG. 17 ; is a perspective view of the present invention illustrating use oftemplate 13 while grinding the face of the graver point; and -
FIG. 18 ; is a perspective view of the present invention illustrating use oftemplate 13 while grinding the heel of the graver point. - The preferred embodiment of a hand engraving sharpening device in accordance with the present invention is illustrated in
FIG. 1 andFIG. 2 . The apparatus consists of aflat surface 6, agrinding lap 4, agraver holder 10, acollar 14, athumbscrew 16, a template-A 12, a template-B 13, and agraver 2. Thegraver holder 10 is further illustrated inFIG. 8 ,FIG. 9 ,FIG. 10 ,FIG. 11 , andFIG. 12 and consists of ashaft 42, anannular ring 34, anindex pin 38, asetscrew 40, and atool hole 36. Thecollar 14 is further illustrated inFIG. 13 and consists of ahole 46 that is made to fit with a slip fit over shaft 42 (FIG. 9 ) andthumbscrew 16 that is used to securecollar 14 into place alongshaft 42. Template-A 12 is further illustrated inFIG. 14 and consists of ahole 58 that is made for a sliding fit with shaft 42 (FIG. 9 ),index hole 60 that is made for a sliding fit with index pin 38 (FIG. 12 ),taper indexes relief indexes B 13 is further illustrated inFIG. 15 and consists of ahole 48 that is made for a sliding fit with shaft 42 (FIG. 9 ),index hole 50 that is made for a sliding fit with index pin 38 (FIG. 12 ),face index 56, andheel indexes - Referring to
FIG. 1 ,graver 2 is an example graver and point that the sample templates in the invention are made to sharpen. This example graver point (graver 2) is further illustrated in the six views ofFIG. 3 throughFIG. 7 . Referring toFIG. 3 throughFIG. 7 , the point ofgraver 2 consists of various facets that are labeled as follows: - face
facet 24; - taper
facets - heel-
relief facets -
heel facets - When a jeweler, engraver, artist or craftsperson desires to shape and sharpen his or her engraving point, a graver 2 (
FIG. 1 ) is inserted into the tool hole 36 (FIG. 8 throughFIG. 12 ) that is in the front end oftool holder 10 andsetscrew 40 is locked to hold thegraver 2 in place. Depending on which facets on the graver point (FIG. 3 , 4, 5, 6, 7) are desired to be ground, the appropriate template is chosen, eithertemplate 12 or template 13 (FIG. 16 andFIG. 17 ).Template 12 will be chosen first in this example. Referring toFIG. 9 ,template 12 is slid ontoshaft 42 via hole 58 (FIG. 14 ) and index pin 38 (FIG. 9 ) is lined up and inserted into index hole 60 (FIG. 14 ). To holdtemplate 13 in place, collar 14 (FIG. 13 ) is then slid onto shaft 42 (FIG. 42 ) via hole (FIG. 13 ), pushed up againsttemplate 13 and thumb screw 16 (FIG. 13 ) is tightened. Referring toFIG. 16 , the user then sets one of the template flats indexes down againstflat surface 6 and the graver point against grindinglap 4. The user then rubs the graver point against the grindinglap 4. Please note, although it is not illustrated, grindinglap 4 could also be a power lap, wherein the lap spins or reciprocates by the presence of a motor. Grindinglap 4 can be a stone, or a lap that is embedded with diamond abrasive. The user proceeds to grind each facet of the graver point by lifting the apparatus up, rotating it to the next index and setting it back down. The index positions of the template each correspond to a facet of the point. Referring toFIG. 14 ,taper indexes point taper facets FIG. 3 ,FIG. 4 ,FIG. 5 ,FIG. 6 andFIG. 7 . Referring toFIG. 14 ,relief indexes relief facets FIG. 3 ,FIG. 4 ,FIG. 5 ,FIG. 6 andFIG. 7 .FIG. 16 andFIG. 1 illustrate the use oftemplate 12. After the user finishes grinding the facets thattemplate 12 provides, he or she replacestemplate 12 with template 13 (FIG. 18 ) and proceeds to grind additional facets withtemplate 13. Referring toFIG. 15 ,heel indexes point heel facets FIG. 3 ,FIG. 4 ,FIG. 5 ,FIG. 6 andFIG. 7 . Referring toFIG. 15 ,face index 56 corresponds with graverpoint face facet 24 inFIG. 3 ,FIG. 4 ,FIG. 5 ,FIG. 6 andFIG. 7 . After the graver point is ground and finished, it is removed from the apparatus. Referring toFIG. 2 , in order for the templates to work as designed, distance D1 and distance D2 need to be given to the user so he or she knows to position the graver a predetermined distance from a template and that grindinglap 4 is used at predetermined height. - Accordingly, the reader will see that the invention provides an improved sharpener for specialized or even non-specialized types of engraving points. The use of templates makes it much easier for the engraver, jeweler, carver or crafts person to concentrate on his or her work rather than spending time figuring out angles and math in order to sharpen their engraving points. Points such as disclosed in U.S. Pat. No. 7,032.586 to Lindsay are much easier for the user to reproduce with the present invention. These pre-figured templates can be manufactured for all types of graver and carving points. Because the templates are made to be replaced easily for grinding various facets and for various styles of points, the invention will both increase the quality of work as well as speed of the user.
- Although the invention has been described with reference to the illustrated embodiment, it is noted that equivalents may be employed and substitutions made herein without departing from the scope of the invention as recited in the claims. For example:
-
Graver holder 10 illustrated inFIG. 8 ,FIG. 9 ,FIG. 10 ,FIG. 11 , andFIG. 12 could be adapted to have a second type of graver holder at the opposite end ofshaft 42 for holding and sharpening graver points, such as the type of tool graver holder that utilizes replaceable carrier blocks as disclosed in U.S. Pat. No. 5,203,417. - Grinding
lap 4 could also be a power lap, wherein the lap spins or reciprocates by the presences of a power movement source such as a motor. - Magnetism or magnetic strip could be utilized to aid in holding the templates in place on flat surface 6 (
FIG. 1 ,FIG. 2 ). This would be useful for temporary unattended operation, by permitting the operator to avoid holding the apparatus in place if a lot of material needs to be taken off to grind one or more of the facets being ground. - The templates disclosed are prefigured and fixed without an adjustment method for adjusting the profile shape and angles of the templates. An equivalent could be made wherein the templates are user adjustable and still allow the replacement uniqueness of the invention be utilized by having the templates easily replaced. Users could then set the templates to their liking for a particular type of point and plan on leaving them set there and switch to another template for other shaped point or for more required facets for a particular specialized point.
- The sharpening device disclosed was originally designed for sharpening graver points for engraving artists and jewelers, however the device can be utilized in other fields needing to shape or place facets on an object.
- Accordingly, the scope of the invention should be determined not by the embodiment illustrated, but by the appended claims and their legal equivalents.
Claims (7)
1-38. (canceled)
39. A device to aid in placing facets at the end of an object, comprising of:
a linear body having an object holder on at least one end;
at least one template plate made to fit said linear body in such a way that the profile of said at least one template plate surrounds said linear body at a location on said linear body;
said at least one template plate having a peripheral profile shape for the purpose of indexing on a flat horizontal plane by a method of setting a portion of said peripheral profile on the flat horizontal plane, the profile surface to be without constraint to allow the device to be freely moveable during the creation of facets;
at least one other template plate having a different profile from said at least one template plate, the different profile surface to be without constraint to allow the device to be freely moveable during the creation of facets; and
said at least one template plate is removable from said linear body for the purpose of being replaceable with said at least one other template plate.
40. A device to aid in placing facets at the end of an object as recited in claim 39 , further comprising: a grinding surface.
41. A device to aid in placing facets at the end of an object as recited in claim 40 , wherein said grinding surface is embedded with diamond abrasive.
42. A device to aid in placing facets at the end of an object as recited in claim 40 , further comprising: a motor for spinning said grinding surface.
43. A device to aid in placing facets at the end of an object as recited in claim 39 , further comprising: a thumb screw.
44. A device to aid in placing facets at the end of an object as recited in claim 39 , further comprising: an index pin for indexing said at least one template plate with said linear body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/545,873 US20080085666A1 (en) | 2006-10-10 | 2006-10-10 | Hand engraving sharpening device |
Applications Claiming Priority (1)
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US11/545,873 US20080085666A1 (en) | 2006-10-10 | 2006-10-10 | Hand engraving sharpening device |
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US20080085666A1 true US20080085666A1 (en) | 2008-04-10 |
Family
ID=39275310
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US11/545,873 Abandoned US20080085666A1 (en) | 2006-10-10 | 2006-10-10 | Hand engraving sharpening device |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110318120A1 (en) * | 2010-06-26 | 2011-12-29 | Efram Wolff | Rotational tools for the engraving of intaglio printing plates |
CN104354104A (en) * | 2014-11-10 | 2015-02-18 | 重庆蓝黛动力传动机械股份有限公司 | Assistant shaft for grinding hexagonal tip |
CN104369095A (en) * | 2014-11-10 | 2015-02-25 | 重庆蓝黛动力传动机械股份有限公司 | Auxiliary hexagonal tip grinding tool |
CN104476357A (en) * | 2014-11-10 | 2015-04-01 | 重庆蓝黛动力传动机械股份有限公司 | Hexagonal center grinding method |
CN104476356A (en) * | 2014-11-10 | 2015-04-01 | 重庆蓝黛动力传动机械股份有限公司 | Hexagonal center grinding method |
US9162343B2 (en) | 2013-02-05 | 2015-10-20 | Glendo Llc | Apparatus, system, and method for sharpening a tool in a fixed geometry |
KR102025515B1 (en) * | 2019-07-02 | 2019-09-25 | 이창수 | burin grinding device |
JP6993746B1 (en) * | 2021-03-31 | 2022-01-14 | 智宏 佐々木 | Faceter mechanism |
KR20220000345U (en) * | 2020-07-30 | 2022-02-08 | (주)리벨리코리아 | Sharpening Jig for Carving knives and Chisels |
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US975329A (en) * | 1909-11-01 | 1910-11-08 | Michael J Collins | Holder for sharpening gravers or other tools. |
US1034595A (en) * | 1911-12-26 | 1912-08-06 | Oscar W Dreyer | Holder for sharpening gravers. |
US1192416A (en) * | 1916-04-28 | 1916-07-25 | Edgar A Graves | Holder for sharpening gravers and other tools. |
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US5582542A (en) * | 1994-08-08 | 1996-12-10 | Stein; Sanford | Apparatus and method for sharpening a cutting tool |
US5810649A (en) * | 1997-04-30 | 1998-09-22 | Barbara Oar | Tool guide for sharpening woodcarving and tools |
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US2735246A (en) * | 1956-02-21 | Lapidary template and dop-stick | ||
US975329A (en) * | 1909-11-01 | 1910-11-08 | Michael J Collins | Holder for sharpening gravers or other tools. |
US1034595A (en) * | 1911-12-26 | 1912-08-06 | Oscar W Dreyer | Holder for sharpening gravers. |
US1192416A (en) * | 1916-04-28 | 1916-07-25 | Edgar A Graves | Holder for sharpening gravers and other tools. |
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US2370908A (en) * | 1944-04-03 | 1945-03-06 | Llorens Jose Amaury | Oilstoning device for plane irons and chisel blades |
US2542698A (en) * | 1949-05-23 | 1951-02-20 | O'brien Dan | Lapidary device |
US2604738A (en) * | 1950-07-28 | 1952-07-29 | John W Ramey | Toolholder |
US3169353A (en) * | 1961-11-17 | 1965-02-16 | Lester S Krulwich | Drill grinding apparatus |
US4078338A (en) * | 1976-08-27 | 1978-03-14 | Baughcom Elisha J | Graver sharpening apparatus |
US4221082A (en) * | 1979-01-26 | 1980-09-09 | Hargem Ltd. | Device for holding precious stones during cutting and polishing the facets thereof |
US4338749A (en) * | 1980-07-21 | 1982-07-13 | Kiser Robert E | Toolholder |
US5297362A (en) * | 1992-10-09 | 1994-03-29 | Wykoff Gerald L | Faceting head apparatus for working colored stones |
US5582542A (en) * | 1994-08-08 | 1996-12-10 | Stein; Sanford | Apparatus and method for sharpening a cutting tool |
US5810649A (en) * | 1997-04-30 | 1998-09-22 | Barbara Oar | Tool guide for sharpening woodcarving and tools |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110318120A1 (en) * | 2010-06-26 | 2011-12-29 | Efram Wolff | Rotational tools for the engraving of intaglio printing plates |
US8585472B2 (en) * | 2010-06-26 | 2013-11-19 | Efram Wolff | Rotational tools for the engraving of intaglio printing plates |
US9162343B2 (en) | 2013-02-05 | 2015-10-20 | Glendo Llc | Apparatus, system, and method for sharpening a tool in a fixed geometry |
CN104354104A (en) * | 2014-11-10 | 2015-02-18 | 重庆蓝黛动力传动机械股份有限公司 | Assistant shaft for grinding hexagonal tip |
CN104369095A (en) * | 2014-11-10 | 2015-02-25 | 重庆蓝黛动力传动机械股份有限公司 | Auxiliary hexagonal tip grinding tool |
CN104476357A (en) * | 2014-11-10 | 2015-04-01 | 重庆蓝黛动力传动机械股份有限公司 | Hexagonal center grinding method |
CN104476356A (en) * | 2014-11-10 | 2015-04-01 | 重庆蓝黛动力传动机械股份有限公司 | Hexagonal center grinding method |
KR102025515B1 (en) * | 2019-07-02 | 2019-09-25 | 이창수 | burin grinding device |
KR20220000345U (en) * | 2020-07-30 | 2022-02-08 | (주)리벨리코리아 | Sharpening Jig for Carving knives and Chisels |
KR200495073Y1 (en) | 2020-07-30 | 2022-03-02 | (주)리벨리코리아 | Sharpening Jig for Carving knives and Chisels |
JP6993746B1 (en) * | 2021-03-31 | 2022-01-14 | 智宏 佐々木 | Faceter mechanism |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |