US1977952A - Cutting and grinding disk - Google Patents

Cutting and grinding disk Download PDF

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Publication number
US1977952A
US1977952A US673754A US67375433A US1977952A US 1977952 A US1977952 A US 1977952A US 673754 A US673754 A US 673754A US 67375433 A US67375433 A US 67375433A US 1977952 A US1977952 A US 1977952A
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United States
Prior art keywords
cutting
core
abrading
wire
disk
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
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US673754A
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English (en)
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Offenbacher Emil
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Individual
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Individual
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Publication of US1977952A publication Critical patent/US1977952A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels

Definitions

  • the narrow grinding wheels or disks have been found specially useful for separating and removing hard matter such as metal, stone, etc.
  • These cutting and grinding wheels are advantageously provided with a metal core, the edge of which is coated with the abrading material.
  • the object of providing a metal core generally constituted by high grade steel, having a high resistance to pressure, and under a thickness of 2 to 3 millimeters was to prevent the wheel from flying off, by the pressure involved during the working, between the securing cheeks, and to allow constructing comparatively large disks having up to 1500 millimeters diameter, as there was only a grinding ring of about 25 to 60 millimeters width to mount on the core. The ring projects about one or two millimeters on either side of the core, so that the cutting surface is about 6 to 12 millimeters thick.
  • the present invention which consists in that the metal core of the disk or wheel, coated at the periphery thereof with an abrading material, is formed of a material which, while being quite firm in a lateral direction, possesses resiliency in the cutting plane.
  • Such a metal core will be preferably formed of a wire tissue or net, on which the abrading material may be easily mounted.
  • the resiliency sought in the plane of the disk or wheel allows the play of the stresses developed in the rotation of the disk, Practice has proved that these wire tissues or nettings do not allow lateral deformation, due to the very high speed reaching a linear speed of 90 meters per second oflicially allowed, which produces an additional tensioning and centering of the wire core.
  • the cutting wheels used heretofore, with steel core are comparatively costly on account of their difficult manufacture. But the disks with a wire core according to this invention are much cheaper because they involve only a small portion of the value of the steel used for the other wheels. Although they are cheaper, the disks according to this invention are more efficient as has been proved by practical experiments, because the 50 abrading bodies are better utilized on account of the resilient mounting thereof and because the water is better distributed by the meshes in the netting.
  • the invention therefore brings forth, not only a technical progress, but a decrease in the manuiacturing cost of a tool used by hundreds of thousands.
  • FIG. 1 and 2 are respectively a section through a diameter and a side view of a first form
  • Figs. 3 and 4 are similar views of a second form.
  • reference numeral 2 designates the wire netting or tissue
  • 1 the central axis of mounting of the disk and 'for the securing cheeks, which are not illustrated
  • 3 is the rim of abrading material.
  • Figs. 3 and 4 the same reference numerals indicate the same parts, 4 being also the portion of the wire netting or tissue covered on both sides, or embedded in the abrading material, the wire being free only in 2, between the rim portion 3 and the internal portion 4.
  • a cutting disk including a core formed of-wire gauze, the core being coated at its central portion with material to form a hub, abrading material coating the core at its peripheral edge portion to provide a cutting area, the wire gauze forming the sole connection'between the hub and the cutting edge material and providing an annular otherwise free cutting area.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
US673754A 1932-06-10 1933-05-31 Cutting and grinding disk Expired - Lifetime US1977952A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE753829X 1932-06-10
DE1977952X 1932-06-10

Publications (1)

Publication Number Publication Date
US1977952A true US1977952A (en) 1934-10-23

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ID=25947660

Family Applications (1)

Application Number Title Priority Date Filing Date
US673754A Expired - Lifetime US1977952A (en) 1932-06-10 1933-05-31 Cutting and grinding disk

Country Status (2)

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US (1) US1977952A (fr)
FR (1) FR753829A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475517A (en) * 1946-08-13 1949-07-05 Carborundum Co Abrasive article of manufacture
US3626921A (en) * 1969-11-28 1971-12-14 Kayex Corp Abrasive cutting element
USB391437I5 (fr) * 1973-08-24 1975-01-28
US4718398A (en) * 1985-09-04 1988-01-12 Diamant Boart Societe Anonyme Circular saw for stony materials
EP2353783A3 (fr) * 2010-01-20 2015-09-23 Rappold Winterthur Technologie GmbH Système de rectification composite
US20160107294A1 (en) * 2014-10-15 2016-04-21 Dr. Müller Diamantmetall AG Tool for machining material and method of producing same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540793A (en) * 1950-04-21 1951-02-06 Super Cut Rotary saw
DE1047054B (de) * 1953-05-27 1958-12-18 Carborundum Werke G M B H Deut Auswechselbares Schleifkoerpersegment fuer Stirnschleifscheiben
BE1001782A4 (fr) * 1988-06-15 1990-03-06 Biebuyck Sa Ets Outil abrasif pour le tronconnage-flettage combines d'articles de verrerie ou de cristallerie.

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475517A (en) * 1946-08-13 1949-07-05 Carborundum Co Abrasive article of manufacture
US3626921A (en) * 1969-11-28 1971-12-14 Kayex Corp Abrasive cutting element
USB391437I5 (fr) * 1973-08-24 1975-01-28
US3914903A (en) * 1973-08-24 1975-10-28 Gleason Works Apparatus for following a previously shaped surface of a workpiece and for removing stock from such surface without significantly changing the shape thereof
US4718398A (en) * 1985-09-04 1988-01-12 Diamant Boart Societe Anonyme Circular saw for stony materials
EP2353783A3 (fr) * 2010-01-20 2015-09-23 Rappold Winterthur Technologie GmbH Système de rectification composite
US20160107294A1 (en) * 2014-10-15 2016-04-21 Dr. Müller Diamantmetall AG Tool for machining material and method of producing same
US20170216995A1 (en) * 2014-10-15 2017-08-03 Dr. Müller Diamantmetall AG Tool for machining material and method of producing same
US9776304B2 (en) * 2014-10-15 2017-10-03 Dr. Müller Diamantmetall AG Tool for machining material and method of producing same
US10144114B2 (en) * 2014-10-15 2018-12-04 Vk Investment Gmbh Tool for machining material and method of producing same

Also Published As

Publication number Publication date
FR753829A (fr) 1933-10-25

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