US2462710A - Abrasive wheel guard - Google Patents

Abrasive wheel guard Download PDF

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Publication number
US2462710A
US2462710A US684141A US68414146A US2462710A US 2462710 A US2462710 A US 2462710A US 684141 A US684141 A US 684141A US 68414146 A US68414146 A US 68414146A US 2462710 A US2462710 A US 2462710A
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Prior art keywords
abrasive wheel
wheel
guard
rotation
water
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Expired - Lifetime
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US684141A
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Ballinger Lewis John Howell
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    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/045—Protective covers for the grinding wheel with cooling means incorporated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/02—Devices for lubricating or cooling circular saw blades
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/072—Dip or splash supply

Definitions

  • This invention relates to a guard for a high speed abrasive Wheel.
  • I provide a guard for a high speed abrasive wheel having passages through which cooling fluid passes to the opposite faces of the abrasive wheel, the passages being open on the sides adjacent the wheel and contracting in cross-section in the direction of rotation of the wheel.
  • Fig. 1 is a sectional elevation
  • Fig. 2 is a section on line II-1I, Fig. 1,
  • Fig. 3 is a plan
  • Fig. 4 is a developed detail.
  • the guard is formed in two halves, a, b, one half a being clamped at al to the spindle housing c, the second half b being detachably attached at bl to the first half a for Wheel removal.
  • Each half is formed with water passages d, e, connecting a Water inlet f to circular portways g, h, formed on the inside guard faces against the side faces of the abrasive wheel i and reasonably near the outside diameter of the abrasive Wheel support anges 7'.
  • the wedge-shaped grooves 7c need not be radial.
  • water Z flows via the water inlet f and passageways CZ, e to the circular port- Ways g, h.
  • the water Z ows through the Wedgeshaped radial grooves lc outwards towards the outer periphery of the abrasive wheel z'.
  • the water also tends to follow the direction of rotation of the abrasive wheel i.
  • a guard for a high speed abrasive Wheel formed in complementary sections, one section being clamped to the housing of the Wheel spindle, another and complementary section being detachably attached to the iirst mentioned section, each section being formed with fluid passages connecting a liuid inlet to portways formed on the inside guard faces against the side faces of the abrasive wheel and reasonably near the outside diameter of flanges on the abrasive wheel support, the portvvays connecting with radial passages wedge shaped in cross section and open to the wheel on the sides adjacent the wheel and which contract in the direction of rotation of the wheel also formed on the inner faces of the abrasive wheel guard section, the apex of the contraction pointing in the direction of rotation of the abrasive wheel.
  • a guard for a high speed abrasive Wheel formed in. two halves, one half being clamped to the housing of the Wheel spindle, the second half being detachably attached to the rst half, each half being iormed with Water passages connecting a water inlet to circular portways formed 0n the inside guard faces adjacent the side faces of the abrasive Wheel and reasonably near the outside diameter of flanges on the abrasive wheel support, the circular portways connecting with wedge-shaped radial passages also formed on the inner faces of the abrasive wheel guard halves open to the wheel on the sides adjacent the wheel, the apex of each Wedge pointing in the direction of rotation of the abrasive wheel.

Description

Feb., 22, 1949. L. J. H. BALLINGER ABRASIVE WHEEL GUARD Filed July 17, 1946 navi. NT on: Lawns a. H. \s UNGE R BY V ATT e RNE.
Patented Feb. 22, 1949 BBASIVE WEEEL GUARD Lewis .lohn Howell Ballinger, Randwick, near Stroud, England Application July 17, 1946, Serial No. 684,141 In Great Britain May 30, 1946 2 Claims.
This invention relates to a guard for a high speed abrasive Wheel.
In accordance with the present invention I provide a guard for a high speed abrasive wheel having passages through which cooling fluid passes to the opposite faces of the abrasive wheel, the passages being open on the sides adjacent the wheel and contracting in cross-section in the direction of rotation of the wheel.
The accompanying drawings illustrate one form of guard made in accordance with the present invention, wherein:
Fig. 1 is a sectional elevation,
Fig. 2 is a section on line II-1I, Fig. 1,
Fig. 3 is a plan, and
Fig. 4 is a developed detail.
As illustrated the guard is formed in two halves, a, b, one half a being clamped at al to the spindle housing c, the second half b being detachably attached at bl to the first half a for Wheel removal.
Each half is formed with water passages d, e, connecting a Water inlet f to circular portways g, h, formed on the inside guard faces against the side faces of the abrasive wheel i and reasonably near the outside diameter of the abrasive Wheel support anges 7'.
The circular portways y, h, connecting with wedge-shaped. radial grooves lc also formed on the inner faces of the abrasive Wheel guard halves a, b the shape of the wedge having a special relation to the direction of rotation of the abrasive wheel, that is to say, pointing in the direction of that rotation.
The wedge-shaped grooves 7c need not be radial.
In operation water Z flows via the water inlet f and passageways CZ, e to the circular port- Ways g, h. When assisted by centrifugal force created by the speed of rotation of the abrasive wheel, the water Z ows through the Wedgeshaped radial grooves lc outwards towards the outer periphery of the abrasive wheel z'. The water also tends to follow the direction of rotation of the abrasive wheel i. Due to the relation of the Wedge-shaped radial grooves k to `the direction of rotation of the abrasive wheel i, Water is impinged on each side of the rotating abrasive wheel z'; the resultant of the action on the water is, therefore, at a tangent to the wheel. The Water flows through and is deflected by the Wedge shaped grooves lc to produce axial pressure against both side faces of the abrasive wheel. Furthermore the stationary guard side faces form stationary reaction members on which the liquid pressure is built up between the guard and the Wheel side faces, thereby pressure cooling the abrasive wheel and the liquid supporting the abrasive Wheel.
What I claim and desire to secure by Letters Patent is:
1. A guard for a high speed abrasive Wheel formed in complementary sections, one section being clamped to the housing of the Wheel spindle, another and complementary section being detachably attached to the iirst mentioned section, each section being formed with fluid passages connecting a liuid inlet to portways formed on the inside guard faces against the side faces of the abrasive wheel and reasonably near the outside diameter of flanges on the abrasive wheel support, the portvvays connecting with radial passages wedge shaped in cross section and open to the wheel on the sides adjacent the wheel and which contract in the direction of rotation of the wheel also formed on the inner faces of the abrasive wheel guard section, the apex of the contraction pointing in the direction of rotation of the abrasive wheel.
2. A guard for a high speed abrasive Wheel formed in. two halves, one half being clamped to the housing of the Wheel spindle, the second half being detachably attached to the rst half, each half being iormed with Water passages connecting a water inlet to circular portways formed 0n the inside guard faces adjacent the side faces of the abrasive Wheel and reasonably near the outside diameter of flanges on the abrasive wheel support, the circular portways connecting with wedge-shaped radial passages also formed on the inner faces of the abrasive wheel guard halves open to the wheel on the sides adjacent the wheel, the apex of each Wedge pointing in the direction of rotation of the abrasive wheel.
LEWIS JOI-IN HOWELL BALLINGER.
REFERENCES CITED The following references are of record in the iile of this patent:
UNITED STATES PATENTS Number Name Date 366,897 Stiles July 19, 1887 375,821 Hyde et al. Jan. 3, 1888 796,466 Stolzenberg Aug. 8, 1905 995,524 Hanson Dec. 1, 1908 1,482,855 Morgan Feb. 5, 1924 1,680,360 Bath Aug. 14, 1928 2,343,556 Jacobsen Mar. 7, 1944 2,378,070 Eastwood June 12, 1945 FOREIGN PATENTS Number Country Date 210,580 Great Britain Feb. 7, 1924
US684141A 1946-05-30 1946-07-17 Abrasive wheel guard Expired - Lifetime US2462710A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842908A (en) * 1957-03-29 1958-07-15 American Chain & Cable Co Abrasive cutting wheel mounting and guard
US2914892A (en) * 1956-12-28 1959-12-01 Fouquet Eugene Process and arrangements for simultaneous lubrication and cooling of the piece of work and the cutting tools during machining operations
US2991599A (en) * 1960-02-17 1961-07-11 Harry C Else Water stabilized cutting wheel
US3127886A (en) * 1962-02-01 1964-04-07 Super Cut System for supplying a coolant liquid to a rotary stone cutting saw or the like
DE1208979B (en) * 1960-08-26 1966-01-13 Walter Brandt G M B H Device for flutter-free guiding of a thin circular saw blade
US3483858A (en) * 1967-07-31 1969-12-16 P R Hoffman Co Stabilized rotary sawing machine
US3591989A (en) * 1968-02-20 1971-07-13 Bahco Ab Hand grinding machines
DE3214645A1 (en) * 1981-08-19 1983-03-17 Buehler Ltd., 60044 Lake Bluff, Ill. COOLING DEVICE FOR CUTTING MACHINES WITH A ROTATING KNIFE DISC
US4620525A (en) * 1984-02-03 1986-11-04 Breton S.P.A. Soundproof sheath for the protection of sawing circular blades used for cutting marble, granite and hard stone
US5140780A (en) * 1991-08-12 1992-08-25 Star Cutter Company Method and apparatus for cleaning and cooling a machine tool and workpiece
EP0816015A1 (en) * 1996-06-25 1998-01-07 Kapp GmbH & Co KG, Werkzeugmaschinenfabrik Method and device for supplying the areas of cooperation between an abrasive tool and a workpiece with cooling lubricants
US20120103156A1 (en) * 2006-04-25 2012-05-03 Chevron Limited Guard assembly for a saw blade
US20130157542A1 (en) * 2010-06-14 2013-06-20 David C. Graham Apparatuses Methods for Coolant Delivery
DE102014111158A1 (en) * 2014-08-06 2016-02-11 Klingelnberg Ag Device with fluid nozzle arrangement for delivering a fluid to a grinding tool and use of a fluid nozzle arrangement in a grinding machine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US366897A (en) * 1887-07-19 Tool-grinder
US375821A (en) * 1888-01-03 Setts
US796466A (en) * 1904-07-18 1905-08-08 Georg Stolzenberg Grindstone.
US905524A (en) * 1908-05-05 1908-12-01 Pratt & Whitney Co Quill.
US1482855A (en) * 1921-02-03 1924-02-05 Greenfield Tap & Die Corp Mechanism for supplying liquid to grinding machines
GB210580A (en) * 1922-12-08 1924-02-07 Thomas William Buckney Improved fluid feed device for grinding wheels
US1680360A (en) * 1923-04-23 1928-08-14 Bath John Lubricating device for grinding machines
US2343556A (en) * 1942-01-29 1944-03-07 Arthur J Jacobsen Severing machine
US2378070A (en) * 1944-02-12 1945-06-12 Tabor Mfg Co Cooling means for abrasive cutters

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US366897A (en) * 1887-07-19 Tool-grinder
US375821A (en) * 1888-01-03 Setts
US796466A (en) * 1904-07-18 1905-08-08 Georg Stolzenberg Grindstone.
US905524A (en) * 1908-05-05 1908-12-01 Pratt & Whitney Co Quill.
US1482855A (en) * 1921-02-03 1924-02-05 Greenfield Tap & Die Corp Mechanism for supplying liquid to grinding machines
GB210580A (en) * 1922-12-08 1924-02-07 Thomas William Buckney Improved fluid feed device for grinding wheels
US1680360A (en) * 1923-04-23 1928-08-14 Bath John Lubricating device for grinding machines
US2343556A (en) * 1942-01-29 1944-03-07 Arthur J Jacobsen Severing machine
US2378070A (en) * 1944-02-12 1945-06-12 Tabor Mfg Co Cooling means for abrasive cutters

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914892A (en) * 1956-12-28 1959-12-01 Fouquet Eugene Process and arrangements for simultaneous lubrication and cooling of the piece of work and the cutting tools during machining operations
US2842908A (en) * 1957-03-29 1958-07-15 American Chain & Cable Co Abrasive cutting wheel mounting and guard
US2991599A (en) * 1960-02-17 1961-07-11 Harry C Else Water stabilized cutting wheel
DE1208979B (en) * 1960-08-26 1966-01-13 Walter Brandt G M B H Device for flutter-free guiding of a thin circular saw blade
US3127886A (en) * 1962-02-01 1964-04-07 Super Cut System for supplying a coolant liquid to a rotary stone cutting saw or the like
US3483858A (en) * 1967-07-31 1969-12-16 P R Hoffman Co Stabilized rotary sawing machine
US3591989A (en) * 1968-02-20 1971-07-13 Bahco Ab Hand grinding machines
US4414783A (en) * 1981-08-19 1983-11-15 Buehler Ltd. Coolant system for rotating blade cutter
DE3214645A1 (en) * 1981-08-19 1983-03-17 Buehler Ltd., 60044 Lake Bluff, Ill. COOLING DEVICE FOR CUTTING MACHINES WITH A ROTATING KNIFE DISC
US4620525A (en) * 1984-02-03 1986-11-04 Breton S.P.A. Soundproof sheath for the protection of sawing circular blades used for cutting marble, granite and hard stone
US5140780A (en) * 1991-08-12 1992-08-25 Star Cutter Company Method and apparatus for cleaning and cooling a machine tool and workpiece
EP0816015A1 (en) * 1996-06-25 1998-01-07 Kapp GmbH & Co KG, Werkzeugmaschinenfabrik Method and device for supplying the areas of cooperation between an abrasive tool and a workpiece with cooling lubricants
US20120103156A1 (en) * 2006-04-25 2012-05-03 Chevron Limited Guard assembly for a saw blade
US20130157542A1 (en) * 2010-06-14 2013-06-20 David C. Graham Apparatuses Methods for Coolant Delivery
US9242344B2 (en) * 2010-06-14 2016-01-26 Saint-Gobain Abrasives, Inc. Apparatuses methods for coolant delivery
DE102014111158A1 (en) * 2014-08-06 2016-02-11 Klingelnberg Ag Device with fluid nozzle arrangement for delivering a fluid to a grinding tool and use of a fluid nozzle arrangement in a grinding machine

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