US2461176A - Mulling apparatus - Google Patents

Mulling apparatus Download PDF

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Publication number
US2461176A
US2461176A US602564A US60256445A US2461176A US 2461176 A US2461176 A US 2461176A US 602564 A US602564 A US 602564A US 60256445 A US60256445 A US 60256445A US 2461176 A US2461176 A US 2461176A
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US
United States
Prior art keywords
receptacle
mulling
plow
crosshead
side wall
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
US602564A
Other languages
English (en)
Inventor
Walter F Piper
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.)
Pettibone Traverse Lift LLC
Original Assignee
Pettibone Mulliken Corp
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
Priority to BE485390D priority Critical patent/BE485390A/xx
Application filed by Pettibone Mulliken Corp filed Critical Pettibone Mulliken Corp
Priority to US602564A priority patent/US2461176A/en
Priority to GB26440/48A priority patent/GB645653A/en
Priority to FR973509D priority patent/FR973509A/fr
Application granted granted Critical
Publication of US2461176A publication Critical patent/US2461176A/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
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
    • B22C5/044—Devices having a vertical stirrer shaft in a fixed receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/14—Edge runners, e.g. Chile mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
    • B22C5/0422—Devices having a fixed receptable with rotating tools, some or all of these tools being rolls or balls loosely mounted on their axis or loose balls in contact with the side wall or the bottom of the receptacle, e.g. with aerating means; "Devices of the Muller type"
    • B22C5/0427—Devices having a fixed receptable with rotating tools, some or all of these tools being rolls or balls loosely mounted on their axis or loose balls in contact with the side wall or the bottom of the receptacle, e.g. with aerating means; "Devices of the Muller type" having only one vertical tool-driving shaft
    • 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
    • Y10S241/00—Solid material comminution or disintegration
    • Y10S241/10—Foundry sand treatment

Definitions

  • the present invention relates generally to mulling apparatus. More particularly the invention relates to that type of apparatus which is designed and adapted to mull material, such, for example, as molding sand in order properly to condition it preparatory to use, and as its main components or parts comprises: (1) a bowlshaped receptacle which is adapted to receive and retain a batch of the material to be mulled; (2) a rotary horizontally extending crosshead which is disposed in, and extends across, the central portion of the receptacle, is supported from above and is connected for drive icy-anV electric motor through the medium of speed reducing gearing; (3) a rotary mulling wheel which is carried by the crosshead and is adapted in connection with drive of the latter to travel in a circular path around the receptacle and eiTect mulling of the material by squeezing it against the receptacle; and (4) a plow which is supported by the crosshead so that it overlies the receptacle bottom, and operates during drive
  • One object of the invention is to provide a mulling apparatus of the type underv consideration which is an improvement upon and eliminates the defects of previously designed apparatus of the same general character icy reason oi the fact that the plow is so designed and constructed that it operates on, and serves to plow outwards, the material in the central portion of the receptacle as well as the remainder of the material to the end that the entire batch of material is mulled in a thorough and eicient manner.
  • Another object of the invention' is to provide a mulling apparatus of the last mentioned character in which the plow is of spiral contour or configuration and has the inner end thereof in substantial alignment with the center or axis of the receptacle.
  • a further object of the invention is to provide a mulling apparatus of the type under consideration in which the crosshead is of new and improved design anld the rotary mulling wheel is connected to the crosshead in a novel and eillcient manner.
  • a still further object of the invention is to provide a mulling apparatus which is generally of new and improved construction, effectively'and efficiently fulfills its intended purpose, is so. de-' signed and constructed that it may be produced at a comparatively low and reasonable cost, and is Van improvement upon,vand has certain inherent advantages over, the mulling apparatus forming'the subject matter of application for letters patent filed April 24, 1944 andfserially Patent No. 2,450,299, Sept.
  • Figure 1 is a vertical section of a mulling apparatus embodying theinvention
  • Figure 2 is a horizontal section taken on the line 2-2 of Figure 1 and illustrating in detail the construction, arrangement and design of the plow for plowing and delecting the material to be mulled in' connection with a mulling operation;
  • Figure 3 is a head.
  • the apparatus which is shown in thedrawings constitutes the preferred form or embodiment of the invention. It serves as a medium for mulling material such as molding sand in a foundry in onder properly to'condition it preparatory to use,
  • the receptacle 5 is adapted to be charged with a batch of material to be mulled and consists oi a lower section 9 and an upper section It.
  • the lower section ⁇ comprises a circular bottom.. wall.. II and ani upstandin'g' cylindricalf side wall P2' and forms a part of a wheelbarrow I3 whereby it may be Wheeled or transported from place to place.
  • the bottom wall lI is formed of plate metal and defines or constitutes the bottoni1 of the receptacle 5.
  • the cylindrical. side wall. I2 is formed integrally with, and!- projectsiupwards. from, the marginal portion of the bottom' wall II and has its upper end reenforced by an externally disposed angle bar type' ring F4".
  • The' upper section I0 of the receptacle E is in theform' of a cylindrical side wall I and this is the same in diameter as the sidewall l-2 and is adapted torest on-,. andformacontinuation ofy
  • the bail I9' is' adapted to ⁇ loefy attached to the hooky of: an over-headE crane' (not shown) and has' the lower ends of. its legs positioned: in straddled ree lation with, an ⁇ df xedly connected to, the cen-Y trail portionsof the'angl'ebars Ii8 In connection.
  • thek lower sections 9fofthe receptacle willbe.- lled with ⁇ a batch'- of the material to bei mulied and thenthe wheelbarrowl i31 of whichthelower sectionofi theY receptacle formsl a part, willbe ⁇ wheeled under the upper section I0 of the: re'- -ceptacla After the wheelbar'row is" wheeled under the upper section Hl it is released.- bythe operator so that the legs thereof rest on.y the floor. Thereafter the. upper section I0 is. lowered Yhy proper manipulation of thev overheadv crane until the reenforcing. ring-I6 ⁇ is in.
  • the orosshead 6- is disposed within, and. extends radially with ⁇ respect. to,- the cylindrical side wall I5 constituting the upper section I9 j housing interior..
  • the side flanges are formed integrally with, and. project downwards from, the side margins of the. horizontally extending web v., 23.
  • the block-likefinner member 2! is arranged so that the axis of its bore is aligned with the Vertical" axisofthe' cylindrical side wall i5 constituting the upper section l0 of the receptacle, and the outer end of 4the elongated outer member E 2! terminates inwards ofthe inner. periphery of saidsde wall I5.
  • the crosshead E' is xedly connectedto the lower end of, and isv driven by., a vertically extending driveshaft 25 which,.in turn, is driven. by a unidirectional. electric motor ⁇ 26 through. the. medium. of speed. reducing gearing 21 ina housing 28.
  • the lower end of the drive shaft isprovided with anf externally threaded stem. 29 ⁇ andthis extends through and isin interlocked relation. with the vertically extending screw threaded. bore 2'2 in the blocklike inner member 'Z0-of the crosshead.
  • the centralpor-tion ot the drivev shaft. 25- is journalled in a bearing 35i on. the bottom. of the housing. 28 and, the
  • the electric motor 2% is mountedon top of the housing'. ifandis arranged so that the armature shaft extends vertically. The lower end of the armature shaft extends into the upper portion of thef interior of the housing. 2S and is operatively or drivably connected to. the drive shaft25bly way ci the-speed reducing gearing 25?.
  • the electricl motor' 26 When the electricl motor' 26 is in operation it operatesto'drive or rotate the crosshead 6 and the latter, in turn; causes the mulling wheels i Vand the plow 8 to travelina circularV course ⁇ of; the receptacle and effect mulling of the rn rial by squeezing it against said bottom fsite sides ⁇ ofthe crosshead and are adapt aroundthe-.bottom wall II of the lower section S or they receptacle. and thus effect mulling of' the hatchfof thenaterial in thereceptacle.
  • pivot bolt 35 extends through aligned holes in the lower central portions of vthe depending side flanges 24 and also through the tubular pivot element 35 and j forms with said element a pivotal connection whereby the arm 34 and the axle 33 together with the two mulling wheels are permitted to swing vertically to a limited extent.
  • a substantially verm tically extending bolt 3l extends through a hole the wheels 1.
  • the plow 8 is connected to, and driven conjointly with, the crosshead 8 and serves during a mulling operation to plow all of the material in the receptacle 5 and also to direct the material into the path of the two mulling wheels 1. It is spiral so far as contour or configuration is concerned, directly overlies the bottom wall il of the lower section 9 of the receptacle when the upper and lower receptacle sections are in their operative position, and consists of an inner part 42 and an outer part 43.
  • An L-shaped bar 44 serves to connect the plow to the crosshead.
  • Such bar is preferably formed of comparatively heavy metal stock, is square in cross section and consists of a vertically extending piece 45 and a horizontally extending piece 46. The later piece is formed integrally lwith the lower end of, and extends at right angles to, the vertically extending piece 45.A
  • the inner part 42 of the plow 8 is approximately the same in height as the cylindrical side wall l2 of the lower section of the receptacle 5. It is formed of heavy plate metal and is so positioned that the leading edge thereof is in true alignment with the longitudinal center of the receptacle. As indicated by the arrow in Figure 2, the crosshead of the apparatus is driven in a clockwise direction when viewed from above. From its leading edge the inner part 42 of the plow extendsoutwards and is curved in a counterclockwise fashion.
  • the outer part 43 of the plow is approximately half asY high as the inner part and has its innerl end welded or otherwise xedly secured to the outer lower corner of the inner part 42. The outer end of the outer part terminates directly inwards of the side wall ll of the lower section S of the receptacle.
  • the outer plow part, lilre the inner' part is formed of heavy plate metal.
  • the plow is arrange-d so that the outer part .43 thereof is disposed substantially midway between the two mulling wheels l.
  • the horizontally extending piece 46 of the bar 44 extends at right angles to the crosshead 6 and has the outer end thereof welded to the trailing marginal por-Y tion of the inner part 42 of the plow at a point directly above the inner end of the outer plow part 43.
  • An elongated horizontally exten-ding bracket plate 41 extends between and is welded to the upper inner corner of the inner plow part 42 and the lower end of the vertically extending piece 45 of the bar.
  • the upper end of said vertically ex-V tending piece 45 is disposed outwards of, and in substantially parallel relation with, a vertically extending bar 48, the upper end of which nts' against, and is welded to, the face of the blocklike crosshead inner member 2t that is remote from the outer crosshead member 2i.
  • the upper end of the bar 4B is provided with an outwardly extending U-shaped bracket its and the lower end of said bar is provided with an outwardly extending U-shaped bracket 5s.
  • the inner ends of the side legs of the two brackets are welded to the side faces of the vertically extending bar 48.
  • the upper end of the vertically extending piece 45 of the plow carrying bar 44 extends through the two brackets 49 and 50, as shown in Figure 1, and is held in place by a pair of set screws 5I and 52.
  • the set screw 5! extends horizontally through the crosswall oi the bracket 4S and is provided with a lock nut 5t for holding it in place.
  • the other set screw, i. e., set screw 52 extends horizontally through crosswall of the bracket 5S and has associated therewith a lock nut 54 for holding it in the diiferent positions into which it is adjusted.
  • a fulcrum member 55 is interposed between the central portion of the bar 48 and the adjacent por The plow. so far as curvature is concerned, progressively. and substantially uniformly increases in radiusfrom the inner or leadings edge of the inner part 42 to the outer end edge of the outer part 43. The.
  • the vertically extending piece es or :the bar ⁇ Ml This member is welded to the bar its and has'the vertically extending piece 45 of the bar et clamped thereagainstby the set screws El and 52.
  • the set screws When the set screws are loosened .the plow -8 may be vertically adjusted in order to bring the lower or bottom edge thereof into position with respect to the bottoni wall ii oi the lower section of the receptacle. Tigntening of the set screws serves to hold' the piow in relation with the crosshead By loosening one of the set screws and tightening the other set screw the plow may be tilted bod-ily in vertical plane. In connection with tilting Vof the 1.
  • the wheelbarrow i3 When it is desired to use the apparatus to muil a batch of material the wheelbarrow i3, after release of the lower section 9 of the receptacle from the upper section it, is wheeled to the location'where the material to be mulled is stored. It is then charge with the material and wheeled back to a position wherein the lower receptacle section s is directly under the upper section le.
  • the apparatus may be manufactured at a comparatively low cost.
  • a mulling apparatus comprising a bowl- ;:like receptacleembodying a bottom wall and a continuous upstanding side wall and adapted to retain the material to be mulled, a rotary power driven crosshead positioned over and in spaced relation with the receptacle bottom wall, and a -rotary nuilling wheel carried by the crosshead and adapted during drive of the latter to travel in a circular course within the receptacle interior and eiect mulling of the material, by squeezing it against said receptacle, a horizontally elongated plow positioned beneath the crosshead and directly over the receptacle bottoni, extending outwards from the central part ci the receptacle to the side wall, having means between it and the crosshead whereby it is connected to rotate conjointly with the crosshead While at the same time it is capable of being adjusted vertically and also tilted longitudinally, and adapted during drive of said crossheadto travel in a
  • a mulling apparatus the combination with a bowl-like receptacle embodying a bottom wall and a continuous upstanding side wall and adapted to retain the material to be muiled, a rotary power driven crosshead positioned over and in spaced relation with the receptacle bottom wall, a rotary mulling element carried by the crosshead and adapted during drive of the latter to travel in a circular course in the receptacle interior and eiect mulling of the material by squeezing it against said receptacle, of a hori- Zontally elongated plow positioned directly over the receptacle bottom Wall, extending outwards from the central portion oi the receptacle to the side wall, and adapted in connetcion with drive of the crosshead to travel in a circular course and deflect the material into the path of the mulling wheel, and a substantially vertically extending attaching member having the lower end thereof connected xedly to the inner end of the
  • a mulling Vapparatus the combination with a bowl-like receptacle embodying a bottoni wall and a continuous upstanding side wall and adapted to retain the material to be mulled, of a rotary horizontally; elongated power driven crosshead positioned over and in spaced relation with the receptacle bottoni Wall and comprising a horizontal web and a pair of laterally spaced side ilanges connected to, and depending from, the side margins of the web, a horizontally extending pvot bolt connected to, and extending between, said side iianges, an arm disposed beneath and in substantially parallel relation with, the ⁇ crosshead and having one end tiereof connected to the pivot bolt so that it is capable oi swinging vertically, a vertically extending bolt extending between and through the arm and the web and'serving to limit downward swinging of the arm, a spiral compression spring extending around the last mentioned bolt and between said arm ⁇ and Web and arranged to urge the arm downward

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US602564A 1945-06-30 1945-06-30 Mulling apparatus Expired - Lifetime US2461176A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE485390D BE485390A (ru) 1945-06-30
US602564A US2461176A (en) 1945-06-30 1945-06-30 Mulling apparatus
GB26440/48A GB645653A (en) 1945-06-30 1948-10-11 Mulling apparatus
FR973509D FR973509A (fr) 1945-06-30 1948-10-15 Appareil à cuve sectionnée déplaçable pour broyer et transporter le sable de fonderie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US602564A US2461176A (en) 1945-06-30 1945-06-30 Mulling apparatus

Publications (1)

Publication Number Publication Date
US2461176A true US2461176A (en) 1949-02-08

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Application Number Title Priority Date Filing Date
US602564A Expired - Lifetime US2461176A (en) 1945-06-30 1945-06-30 Mulling apparatus

Country Status (4)

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US (1) US2461176A (ru)
BE (1) BE485390A (ru)
FR (1) FR973509A (ru)
GB (1) GB645653A (ru)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610802A (en) * 1948-09-14 1952-09-16 Simpson Herbert Corp Variable unit pressure muller
US2619293A (en) * 1947-02-27 1952-11-25 Simpson Herbert Corp Intensive mixing apparatus
US2630975A (en) * 1949-11-22 1953-03-10 Simpson Herbert Corp Variable pressure muller
US2676760A (en) * 1951-01-27 1954-04-27 Simpson Herbert Corp Portable mulling machine
US2727696A (en) * 1950-03-02 1955-12-20 Simpson Herbert Corp Mixer
US2815903A (en) * 1951-11-01 1957-12-10 Combustion Eng Spring means for roller mills and the like
US3334822A (en) * 1963-12-09 1967-08-08 Nat Eng Co Mulling machine
US4044958A (en) * 1974-08-09 1977-08-30 Karl Handle & Sohne Maschinenfabrik Und Eisengiesserei Edge mill
US5492279A (en) * 1994-09-28 1996-02-20 Combustion Engineering, Inc. Variable spring rate pulverizer apparatus
US5904307A (en) * 1998-04-17 1999-05-18 Combustion Engineering, Inc. Pulverizer apparatus with horizontal axis pivot scraper
CN108686775A (zh) * 2018-04-12 2018-10-23 安徽省泾县汪六吉宣纸有限公司 一种宣纸生产中的高效碾料装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1071889B (it) * 1977-01-26 1985-04-10 Vigano Luisa Dispositivo per miscelare in continuo,sabbia e leganti per fonderia
CN111001469A (zh) * 2019-12-19 2020-04-14 湖北星梦茶业股份有限公司 一种黑茶提取茶叶醋加工用粉碎装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US646484A (en) * 1899-05-04 1900-04-03 Robert H Laird Grinder for crushed ores, & c.
US1512536A (en) * 1924-03-26 1924-10-21 Stevenson Company Foundry mixer
US1864385A (en) * 1929-07-06 1932-06-21 Wass Josephus Grinding, crushing, and mixing mill
US1910028A (en) * 1930-07-23 1933-05-23 Herbert S Simpson Muller
US1933278A (en) * 1932-04-11 1933-10-31 Beardsley & Piper Co Method of preparing molding sand
US2144636A (en) * 1937-04-05 1939-01-24 Beardsley & Piper Co Method of treating mulling sand
US2318797A (en) * 1940-05-16 1943-05-11 Beardsley & Piper Co Mulling apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US646484A (en) * 1899-05-04 1900-04-03 Robert H Laird Grinder for crushed ores, & c.
US1512536A (en) * 1924-03-26 1924-10-21 Stevenson Company Foundry mixer
US1864385A (en) * 1929-07-06 1932-06-21 Wass Josephus Grinding, crushing, and mixing mill
US1910028A (en) * 1930-07-23 1933-05-23 Herbert S Simpson Muller
US1933278A (en) * 1932-04-11 1933-10-31 Beardsley & Piper Co Method of preparing molding sand
US2144636A (en) * 1937-04-05 1939-01-24 Beardsley & Piper Co Method of treating mulling sand
US2318797A (en) * 1940-05-16 1943-05-11 Beardsley & Piper Co Mulling apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619293A (en) * 1947-02-27 1952-11-25 Simpson Herbert Corp Intensive mixing apparatus
US2610802A (en) * 1948-09-14 1952-09-16 Simpson Herbert Corp Variable unit pressure muller
US2630975A (en) * 1949-11-22 1953-03-10 Simpson Herbert Corp Variable pressure muller
US2727696A (en) * 1950-03-02 1955-12-20 Simpson Herbert Corp Mixer
US2676760A (en) * 1951-01-27 1954-04-27 Simpson Herbert Corp Portable mulling machine
US2815903A (en) * 1951-11-01 1957-12-10 Combustion Eng Spring means for roller mills and the like
US3334822A (en) * 1963-12-09 1967-08-08 Nat Eng Co Mulling machine
US4044958A (en) * 1974-08-09 1977-08-30 Karl Handle & Sohne Maschinenfabrik Und Eisengiesserei Edge mill
US5492279A (en) * 1994-09-28 1996-02-20 Combustion Engineering, Inc. Variable spring rate pulverizer apparatus
US5904307A (en) * 1998-04-17 1999-05-18 Combustion Engineering, Inc. Pulverizer apparatus with horizontal axis pivot scraper
CN108686775A (zh) * 2018-04-12 2018-10-23 安徽省泾县汪六吉宣纸有限公司 一种宣纸生产中的高效碾料装置

Also Published As

Publication number Publication date
BE485390A (ru) 1948-11-20
FR973509A (fr) 1951-02-12
GB645653A (en) 1950-11-08

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