US2380539A - Sharpening instrument - Google Patents

Sharpening instrument Download PDF

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Publication number
US2380539A
US2380539A US519126A US51912644A US2380539A US 2380539 A US2380539 A US 2380539A US 519126 A US519126 A US 519126A US 51912644 A US51912644 A US 51912644A US 2380539 A US2380539 A US 2380539A
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Prior art keywords
sharpening
abrasive
grooves
body member
sharpening instrument
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Expired - Lifetime
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US519126A
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Miller Bernard Mark
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors

Definitions

  • This invention relates to sharpening devices. Hitherto it has been customary to sharpen knives such as carving knives on asharpening device known as a steel. This consists of a body member of rod-like shape made of steel provided with a tang fitting into a handle.
  • This device is, however, unsuitable for .the sharpening of hollow ground carving knives as such carving knives have cutting edges of wafer thickness which are liable to injury when brought into contact with hard steel, and it i an object of the present invention to provide an improved device suitable for sharpening hollow ground carving knives.
  • the present invention provides a sharpening device comprising abody member, preferably of rod-like form, having at least one groove therein filled with a mass containing abrasive material bonded to the surface of the groove, the surface of the said mass being level with or projecting beyond the surface of the body member which is made of material softer than that of the abrasive so that it will wear away as the abrasive wears away.
  • a plurality of grooves are provided fllled with abrasives of different fineness so that Examples of materials which may be used for the body member are brass, bronze and copper.
  • body member i may be provided with a tang fitting into a. handle orthe kind usually employed in the sharpening devices known as steels.
  • Fig. 1 is an elevation of a sharpening device according to the invention.
  • Fig. 2 is a section on the line AA of Fig. 1,
  • Fig. 3 is a similar sectional view of the body member before the filling of the grooves with the I abrasive.
  • the sharpening device consists of a body member I of brass or other suitable soft material having four grooves, 2, 3,
  • the body member I is provided with a tang i0 fitting into a handle ii.
  • Adevice for sharpening carvingknives comprising a brass body of rod-like form having four longitudinal grooves therein, a mass containing silicon carbide or other suitable abrasive bonded to the surface of each of said grooves, the granular size of the abrasive in two of said grooves diametrically oposed to each other being greater than the granular size of the abrasive in the other two grooves and the surfaces of the masses projecting beyond the surface of the body

Description

31, MILLER SHARPENING INSTRUMENT Filed Jan. .21, 1944 Patented July 31, 1945 SHARPENING INSTRUMENT Bernard Mark Miller, Shemeld, England Application January 21, 1944, Serial No. 519,126 In Great Britain December 9, 1943 2 Claims.
This invention relates to sharpening devices. Hitherto it has been customary to sharpen knives such as carving knives on asharpening device known as a steel. This consists of a body member of rod-like shape made of steel provided with a tang fitting into a handle.
This device is, however, unsuitable for .the sharpening of hollow ground carving knives as such carving knives have cutting edges of wafer thickness which are liable to injury when brought into contact with hard steel, and it i an object of the present invention to provide an improved device suitable for sharpening hollow ground carving knives.
With this object in view the present invention provides a sharpening device comprising abody member, preferably of rod-like form, having at least one groove therein filled with a mass containing abrasive material bonded to the surface of the groove, the surface of the said mass being level with or projecting beyond the surface of the body member which is made of material softer than that of the abrasive so that it will wear away as the abrasive wears away.
Preferably a plurality of grooves are provided fllled with abrasives of different fineness so that Examples of materials which may be used for the body member are brass, bronze and copper.
It will be understood that the body member i may be provided with a tang fitting into a. handle orthe kind usually employed in the sharpening devices known as steels.
The invention will now be described in greater detail by way of example with reference to the 1 accompanying drawing, in which:
Fig. 1 is an elevation of a sharpening device according to the invention.
Fig. 2 is a section on the line AA of Fig. 1,
and
Fig. 3 is a similar sectional view of the body member before the filling of the grooves with the I abrasive.
Referring to the drawing, the sharpening device consists of a body member I of brass or other suitable soft material having four grooves, 2, 3,
and 6, filled respectively with masses containing silicon carbide or other suitable abrasive 8, I, 8 and i, the grains of abrasive in the masses 8 and 8 being substantially coarser than those in masses 1 and 9. The body member I is provided with a tang i0 fitting into a handle ii.
I claim:
1. Adevice for sharpening carvingknives comprising a brass body of rod-like form having four longitudinal grooves therein, a mass containing silicon carbide or other suitable abrasive bonded to the surface of each of said grooves, the granular size of the abrasive in two of said grooves diametrically oposed to each other being greater than the granular size of the abrasive in the other two grooves and the surfaces of the masses projecting beyond the surface of the body
US519126A 1943-12-09 1944-01-21 Sharpening instrument Expired - Lifetime US2380539A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674072A (en) * 1951-11-21 1954-04-06 Carl H Lohmann Sharpening tool
FR2602706A1 (en) * 1986-07-28 1988-02-19 Tech Applic Plasmas Steel for sharpening cutting edges
US5172523A (en) * 1991-10-08 1992-12-22 Kadlec Richard W Compact fish hook sharpening device
US6048262A (en) * 1999-02-23 2000-04-11 Ray; Ralph Honing device for culinary knives
US6059645A (en) * 1998-04-29 2000-05-09 Levine; Arthur L. Hand-held sharpening device
US6371841B1 (en) 1999-02-23 2002-04-16 Ralph Ray Knife maintenance apparatus having two distinct maintenance surfaces
US20080216295A1 (en) * 2007-03-09 2008-09-11 Tipton Kathleen M Fabric Abrading Hand Tool
US20090117838A1 (en) * 2007-11-01 2009-05-07 Po-Yuan Huang Precision ceramic whetstone
EP2147748A1 (en) 2008-07-24 2010-01-27 High Tech Ceramic eK Knife sharpener and method for its production
US20140242895A1 (en) * 2013-02-22 2014-08-28 Lifetime Brands, Inc. Knife sharpener
US9039494B1 (en) * 2010-12-08 2015-05-26 Darex, Llc Hand-held sharpener with multiple abrasive rods to sharpen a cutting edge of a tool

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674072A (en) * 1951-11-21 1954-04-06 Carl H Lohmann Sharpening tool
FR2602706A1 (en) * 1986-07-28 1988-02-19 Tech Applic Plasmas Steel for sharpening cutting edges
US5172523A (en) * 1991-10-08 1992-12-22 Kadlec Richard W Compact fish hook sharpening device
US6059645A (en) * 1998-04-29 2000-05-09 Levine; Arthur L. Hand-held sharpening device
US6251003B1 (en) 1998-04-29 2001-06-26 Levine Arthur L. Hand-held sharpening device
US6048262A (en) * 1999-02-23 2000-04-11 Ray; Ralph Honing device for culinary knives
US6371841B1 (en) 1999-02-23 2002-04-16 Ralph Ray Knife maintenance apparatus having two distinct maintenance surfaces
US20080216295A1 (en) * 2007-03-09 2008-09-11 Tipton Kathleen M Fabric Abrading Hand Tool
US20090117838A1 (en) * 2007-11-01 2009-05-07 Po-Yuan Huang Precision ceramic whetstone
US7713112B2 (en) * 2007-11-01 2010-05-11 Po-Yuan Huang Precision ceramic whetstone
EP2147748A1 (en) 2008-07-24 2010-01-27 High Tech Ceramic eK Knife sharpener and method for its production
US20100018352A1 (en) * 2008-07-24 2010-01-28 High Tech Ceramic Ek Sharpening rod and method for manufacturing the same
US8591294B2 (en) * 2008-07-24 2013-11-26 High Tech Ceramic Ek Sharpening rod and method for manufacturing the same
US9039494B1 (en) * 2010-12-08 2015-05-26 Darex, Llc Hand-held sharpener with multiple abrasive rods to sharpen a cutting edge of a tool
US9050709B1 (en) * 2010-12-08 2015-06-09 Darex, Llc Hand-held sharpener with multi-stage sharpening capabilities
US9833880B1 (en) * 2010-12-08 2017-12-05 Darex, Llc Hand-held sharpener with multiple abrasive rods to sharpen a cutting edge of a tool
US9833879B1 (en) * 2010-12-08 2017-12-05 Darex, Llc Hand-held sharpener with multi-stage sharpening capabilities
US20140242895A1 (en) * 2013-02-22 2014-08-28 Lifetime Brands, Inc. Knife sharpener
US9033771B2 (en) * 2013-02-22 2015-05-19 Lifetime Brands, Inc. Knife sharpener

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