GB726401A - Machine for the treatment of sand - Google Patents

Machine for the treatment of sand

Info

Publication number
GB726401A
GB726401A GB24154/53A GB2415453A GB726401A GB 726401 A GB726401 A GB 726401A GB 24154/53 A GB24154/53 A GB 24154/53A GB 2415453 A GB2415453 A GB 2415453A GB 726401 A GB726401 A GB 726401A
Authority
GB
United Kingdom
Prior art keywords
drum
sand
feed
shaft
wheels
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
Application number
GB24154/53A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB726401A publication Critical patent/GB726401A/en
Expired legal-status Critical Current

Links

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
    • B22C5/0422—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"
    • B22C5/0436—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 a horizontal tool-driving shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

726,401. Mullers. WESTIN, K. G. Sept. 1, 1953 [Sept. 11, 1952], No. 24154/53. Class 59. A muller for foundry sand comprises a drum 1 having a feed opening 15a at one end for the sand and a discharge opening at the other end, and a rotary shaft 13 to support a plurality of crushing elements 17 and scraping elements 19 which are at different axial positions throughout the drum and act on the sand at the wall of the drum during rotation of the shaft. An electric motor 11 drives the shaft 13 through a worm gear or the like 12 and effects feed of the sand by a worm conveyer 14. Each mulling and scraping unit has a hub 21 to support diametrically-opposed mulling wheels 17 and scoop scrapers 19, and three units are arranged along the shaft, with the wheels of adjacent units offset from each other by about 60 degrees. The wheels are mounted loosely on the cranked ends of their supporting arms 18 or on eccentrics on the cranked ends so as to be applied resiliently against the sand by centrifugal force. Vanes 19a may also be provided and so arranged with the scoops 19 that the entire length of the drum may be scraped. The rate of feed of the sand along the drum can also be controlled by regulation of the angle of the scoops 19 and the vanes 19a which may be arranged to return the sand for further treatment. The feed may also be assisted by inclining the drum at an angle up to 15 degrees to the horizontal. This may be effected by pivoting a frame 3, 4, supporting the drum, about bolts 5a, by means of a screw, hydraulic or pneumatic, jack 9. The drum may have a wear-resistant lining, e.g. of rubber, and at least one access door which may be operated by a pneumatic or hydraulic jack. A current of air may be passed through the drum preferably from an inlet 23 to an outlet 24, to cool the sand and remove entrained dust, and water may be introduced through nozzles adjacent the inlet end of the drum to moisten the sand. The drum may be of conical form.
GB24154/53A 1952-09-11 1953-09-01 Machine for the treatment of sand Expired GB726401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE726401X 1952-09-11

Publications (1)

Publication Number Publication Date
GB726401A true GB726401A (en) 1955-03-16

Family

ID=20316133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24154/53A Expired GB726401A (en) 1952-09-11 1953-09-01 Machine for the treatment of sand

Country Status (2)

Country Link
FR (1) FR1083285A (en)
GB (1) GB726401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321187A (en) * 1963-12-27 1967-05-23 Galion Jeffrey Mfg Co Continuous muller with adjustable mulling wheels and plow means

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534388C2 (en) * 1975-08-01 1980-01-03 Ulrich 6100 Darmstadt-Eberstadt Krause Mixer for making sludge
US4231664A (en) * 1979-03-21 1980-11-04 Dependable-Fordath, Inc. Method and apparatus for combining high speed horizontal and high speed vertical continuous mixing of chemically bonded foundry sand
DE3047250A1 (en) * 1979-12-18 1981-09-24 Agustín Vitoria Arana Eraña MOLDING SANDING MACHINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321187A (en) * 1963-12-27 1967-05-23 Galion Jeffrey Mfg Co Continuous muller with adjustable mulling wheels and plow means

Also Published As

Publication number Publication date
FR1083285A (en) 1955-01-06

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