GB801974A - Improvements relating to the making of gypsum crayons and other articles formed of setting material - Google Patents

Improvements relating to the making of gypsum crayons and other articles formed of setting material

Info

Publication number
GB801974A
GB801974A GB3130556A GB3130556A GB801974A GB 801974 A GB801974 A GB 801974A GB 3130556 A GB3130556 A GB 3130556A GB 3130556 A GB3130556 A GB 3130556A GB 801974 A GB801974 A GB 801974A
Authority
GB
United Kingdom
Prior art keywords
frame
moulds
gypsum
plate
crayons
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
GB3130556A
Inventor
John Johnson
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.)
Stadium Chalk & Crayon Co
Original Assignee
Stadium Chalk & Crayon 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 Stadium Chalk & Crayon Co filed Critical Stadium Chalk & Crayon Co
Priority to GB3130556A priority Critical patent/GB801974A/en
Publication of GB801974A publication Critical patent/GB801974A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/26—Assemblies of separate moulds, i.e. of moulds or moulding space units, each forming a complete mould or moulding space unit independently from each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/08—Moulds provided with means for tilting or inverting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/10—Moulds with means incorporated therein, or carried thereby, for ejecting or detaching the moulded article
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D13/00—Pencil-leads; Crayon compositions; Chalk compositions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

801,974. Moulding chalks or crayons. STADIUM CHALK & CRAYON CO., Ltd. Oct. 15, 1956, No. 31305/56. Class 87(2).. The apparatus comprises a plurality of tapered moulds 15, e.g., of copper, in which gypsum is cast to make chalks or crayons, held between aligned perforated plates 10, 11 with their larger ends flush with the surface of the plate 10 and their smaller ends protruding beyond that of the plate 11, and plungers 22 extending into the smaller ends of the moulds and held by a retaining plate 21 against a movable frame 6. The plates 10, 11 are part of the structure of a frame 7 mounted in trunnions 4. The frame 6 may be moved to and from the frame 7 by eccentrics 39 on shafts 40 with handles 41. The spacing between the frames 6, 7 is adjustable by nuts 38, and they are kept in alignment by guide rods 27 which extend from the frame 7 and fit slidably in bosses 28 on the frame 6. With the apparatus in the Fig. 1 position, lubricant, e.g., animal fat or a stearine-base product carried in a vehicle of paraffm, is applied to the upper plate 10 and flows into the moulds, coating their walls. Gypsum in flowable condition is run on the upper plate 10, being retained by a guard 45, and fills the moulds. Surplus gypsum is removed from the plate and time is allowed for the gypsum in the moulds to set semi-solid. The frames 6, 7 are inverted in the trunnions and a tray 46 is raised by a handle 47. The handles 41 are then operated to move the frame 6 towards the frame 7, the plungers 22 then moving further into the moulds in a downward direction and ejecting the cast chalks from the larger ends of the moulds, to be received on the tray 46, where their final setting takes place.
GB3130556A 1956-10-15 1956-10-15 Improvements relating to the making of gypsum crayons and other articles formed of setting material Expired GB801974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3130556A GB801974A (en) 1956-10-15 1956-10-15 Improvements relating to the making of gypsum crayons and other articles formed of setting material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3130556A GB801974A (en) 1956-10-15 1956-10-15 Improvements relating to the making of gypsum crayons and other articles formed of setting material

Publications (1)

Publication Number Publication Date
GB801974A true GB801974A (en) 1958-09-24

Family

ID=10321148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3130556A Expired GB801974A (en) 1956-10-15 1956-10-15 Improvements relating to the making of gypsum crayons and other articles formed of setting material

Country Status (1)

Country Link
GB (1) GB801974A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726996A1 (en) * 1987-08-13 1989-02-23 Matthias Dipl Chem Dr Hempel METHOD AND DEVICE FOR PRODUCING MINES FOR COSMETIC PENS AND THE LIKE
DE3835680A1 (en) * 1988-10-20 1990-04-26 Nele Hempel Gmbh Method for producing an insert, in particular for cosmetic sticks and the like, insert for a cosmetic stick, and cosmetic stick with an insert of this type
GB2366231A (en) * 2000-08-23 2002-03-06 Kvm Industrimaskiner As Controlled ejection of moulding equipment
EP2460632A1 (en) * 2010-12-06 2012-06-06 Societe D'etude Et Construction Mecanique Generale Et D'automatisme (Secma) Casting table and checkers for producing a tile mould or accessory

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726996A1 (en) * 1987-08-13 1989-02-23 Matthias Dipl Chem Dr Hempel METHOD AND DEVICE FOR PRODUCING MINES FOR COSMETIC PENS AND THE LIKE
DE3835680A1 (en) * 1988-10-20 1990-04-26 Nele Hempel Gmbh Method for producing an insert, in particular for cosmetic sticks and the like, insert for a cosmetic stick, and cosmetic stick with an insert of this type
GB2366231A (en) * 2000-08-23 2002-03-06 Kvm Industrimaskiner As Controlled ejection of moulding equipment
GB2366231B (en) * 2000-08-23 2004-04-28 Kvm Industrimaskiner As Controlled moulding equipment
EP2460632A1 (en) * 2010-12-06 2012-06-06 Societe D'etude Et Construction Mecanique Generale Et D'automatisme (Secma) Casting table and checkers for producing a tile mould or accessory
FR2968236A1 (en) * 2010-12-06 2012-06-08 Etude Et Construction Mecanique Generale Et D Automatisme Soc D CASTING AND STACKING TABLE FOR PRODUCING A TILE MOLD OR ACCESSORY

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