US1823351A - Grinding ball - Google Patents

Grinding ball Download PDF

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Publication number
US1823351A
US1823351A US344700A US34470029A US1823351A US 1823351 A US1823351 A US 1823351A US 344700 A US344700 A US 344700A US 34470029 A US34470029 A US 34470029A US 1823351 A US1823351 A US 1823351A
Authority
US
United States
Prior art keywords
spider
iron
mold
arms
ball
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
Application number
US344700A
Inventor
Warren F Clements
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuller Lehigh Co
Original Assignee
Fuller Lehigh Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuller Lehigh Co filed Critical Fuller Lehigh Co
Priority to US344700A priority Critical patent/US1823351A/en
Application granted granted Critical
Publication of US1823351A publication Critical patent/US1823351A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/06—Casting in, on, or around objects which form part of the product for manufacturing or repairing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/20—Disintegrating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/932—Abrasive or cutting feature
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/939—Molten or fused coating
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12201—Width or thickness variation or marginal cuts repeating longitudinally
    • Y10T428/12208—Variation in both width and thickness
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12229—Intermediate article [e.g., blank, etc.]
    • Y10T428/12236—Panel having nonrectangular perimeter
    • Y10T428/1225—Symmetrical
    • Y10T428/12257—Only one plane of symmetry

Definitions

  • This invention relates to grinding balls and the process of making them for use 1n mills for grinding material such as coal, for example, in which balls are pushed 4around over a grinding surface.
  • Fig. l is a side view of half of a mold in which the balls are cast, showing a ballin section
  • Fig. 2 is a section along the line 2 2 of Fig. 1.
  • reference character 1 indiates half or one side of a mold that may be made of cast iron that is made in two halves that can be clamped or bolted together.
  • Each half of the mold is provided on its inner face with a hemispherical opening 2 into the lower side of which a groove/or passageway 3 for molten material leads from the upper side 4 of the mold.
  • a riser 5 extends from the upper edge of the spherical opening 2 along the inner face of each half of the mold to the upper surface of the mold.
  • Recesses 6 are provlded inthe inner faces of each half of the mold around the edges.
  • a previously cast spider 7 with arms 8, having the ends thereof extending into said recesses 6, can be put in place before the halves of the mold are put together.
  • the spider 7 may also be provided with shorter arms 9, extending arms 8.
  • This molten iron may be of silica iron that w1l1 become chilled to a certain extent in the mold as it solidiies and knits around the spider 7 and aljms 8 and 9. .
  • a grinding ball having an inside spider of soft iron and the remainder of hard iron, said spider having arms extending into said fhard iron.
  • a grinding ball having an inside spider of grey iron and the remainder of silica iron, said spider having arms extending into said silica iron.
  • a grinding ball having an inside spider of soft iron and the remainder of hard iron, said spider'having arms, the ends of which terminate at the surface of said ball.
  • a grinding ball having an inside spider of soft iron and the remainder of hard iron, said spider having radial arms some of which terminate at the surface of said ball.

Description

Patented Sept.l 15, 1931 UNITED STATES PATENT OFFICE WIABBEN F. CLEMENTS, OF ALLENTOWN, PENNSYLVANIA, ASSIGNOR T FULLER LEHIGH COMPANY. OF FULLER'ION, PENNSYLVANIA, A CORPORATION 0F DEL- AWARE GRINDING BALL Application led March 6, 1929. Serial No. 344,700.
This invention relates to grinding balls and the process of making them for use 1n mills for grinding material such as coal, for example, in which balls are pushed 4around over a grinding surface.
The invention will be understood from the description in connection with -the accompanying drawings in 'which Fig. lis a side view of half of a mold in which the balls are cast, showing a ballin section; and Fig. 2 is a section along the line 2 2 of Fig. 1.
In the drawings reference character 1 indiates half or one side of a mold that may be made of cast iron that is made in two halves that can be clamped or bolted together. Each half of the mold is provided on its inner face with a hemispherical opening 2 into the lower side of which a groove/or passageway 3 for molten material leads from the upper side 4 of the mold. A riser 5 extends from the upper edge of the spherical opening 2 along the inner face of each half of the mold to the upper surface of the mold. When the halves of the mold are put together they enclose the spherical opening into which metal for forming the ball can be introduced through the inlet or groove 3.
Recesses 6 are provlded inthe inner faces of each half of the mold around the edges.
of the hemispherical openings, 'so that a previously cast spider 7 with arms 8, having the ends thereof extending into said recesses 6, can be put in place before the halves of the mold are put together. The spider 7 may also be provided with shorter arms 9, extending arms 8. v
In producing the balls, the spider 7, which is preferably made of grey iron, is put' in place with the ends of its arms 8 extending into the recesses 6, the-two sides of the mold assembled and molten iron is poured through the inlet 3 filling the spaces in the spherical opening around the spidei` 7 and arms 8 and 9. This molten iron may be of silica iron that w1l1 become chilled to a certain extent in the mold as it solidiies and knits around the spider 7 and aljms 8 and 9. .The mold'is then opened and the protruding ends of the arms removed to leave a smooth spherical surace.
It has been found that when a metal castingl or spider is used as described above around whichl the ball is poured, no large mass remains hot at the centerafter the surface is coolednvith the result that there are less internal strains in the ball as a Whole When it is finished.v which makes it less liable to break when used as a grinding ball.
I claim:
l. A grinding ball having an inside spider of soft iron and the remainder of hard iron, said spider having arms extending into said fhard iron.
2. A grinding ball having an inside spider of grey iron and the remainder of silica iron, said spider having arms extending into said silica iron.
3. A grinding ball having an inside spider of soft iron and the remainder of hard iron, said spider'having arms, the ends of which terminate at the surface of said ball.
4. A grinding ball having an inside spider of soft iron and the remainder of hard iron, said spider having radial arms some of which terminate at the surface of said ball.
WARREN F. (ELEMENTS.
at right angles to the plane of the y
US344700A 1929-03-06 1929-03-06 Grinding ball Expired - Lifetime US1823351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US344700A US1823351A (en) 1929-03-06 1929-03-06 Grinding ball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US344700A US1823351A (en) 1929-03-06 1929-03-06 Grinding ball

Publications (1)

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US1823351A true US1823351A (en) 1931-09-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462122A (en) * 1944-05-02 1949-02-22 Stearns Roger Mfg Company Method of casting, forging, and heat-treating cast iron grinding balls
US2558327A (en) * 1947-04-02 1951-06-26 Weston David Grinding ball for ball mills
US5667154A (en) * 1983-11-12 1997-09-16 The Babcock & Wilcox Company Cast abrasion resistant hollow balls
CN108971452A (en) * 2018-09-04 2018-12-11 鞍钢股份有限公司 A kind of blast furnace slag dry type waste heat recycles the manufacturing method of compound steel ball

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462122A (en) * 1944-05-02 1949-02-22 Stearns Roger Mfg Company Method of casting, forging, and heat-treating cast iron grinding balls
US2558327A (en) * 1947-04-02 1951-06-26 Weston David Grinding ball for ball mills
US5667154A (en) * 1983-11-12 1997-09-16 The Babcock & Wilcox Company Cast abrasion resistant hollow balls
EP0894533A1 (en) * 1983-11-12 1999-02-03 THE BABCOCK & WILCOX COMPANY Metallic hollow cast balls and methods of casting
CN108971452A (en) * 2018-09-04 2018-12-11 鞍钢股份有限公司 A kind of blast furnace slag dry type waste heat recycles the manufacturing method of compound steel ball

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