US1423461A - Mold for use in building walls, making blocks, slabs, tiles, or briquettes - Google Patents

Description

B. SCRUBY AND. G. K. HARKNESS. MOLD FOR USE IN BUILDING WALLS, MAKING BLOCkS, SLABS, TILES, 0R BRIQUE TTES.

APPLICATION FILED APR-6.1920.

Patented July 18, 1922.

3 SHEETSSHEET I.

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B. SCRUBY AND G. K. HARKNESS. MOLD FOR USE IN BUILDING WALLS, MAKING BLOCKS, SLABS, TILES, 0R BRIQUETTESi APPLICATION FILED APR. 6. I920.

Patented. July 18, 1922;.

LQQSAISL 3 SHEETS-SHEET '2.

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B. SCRUBY AND G K. HARKNESS.

MOLD FOR USE IN BUILDING WALLS,- MAKING BLOCKS, SLABS, TILES, 0R BRIQUETTES.

APPUCATION FILED APR 6, 1920.

11, 423 416 1 Patented; July 18, 1922.

s SHEET SSHEET 3.

f in BASIL SCRUBY AND GEORGE KETTELVVELL HARKNESS, 0F HARLOW", ENGLAND.

rironn non use IN nonznrne wants, Maxine spoons, snans, TILES, OBBRIQUETTES fl,d23,dtii.

Specification of Letters Patent. Pat-g f d J l 118 jiggg Application filed April 6, 1920. Serial No. 371,605.

To all to 7mm it may concern Be it known that we, BAsrL SGRUBY and Gnonon Kn'rrnLwnLr. HARKNnss, both subjects oi the King of Great'Britain, both residing in Harlow, England, have jointly invented certain new and useful Improvements in or Relating to Molds for Use in Building Walls, Making Blocks, Slabs, Tiles, or Briquettes, of which the following is a specification.

- This invention relates to bottomless molds tor moulding concrete or other plastic materials in building walls in situ contiguously section by section and course by course or in making separate blocks, slabs, tiles and the like, the molds being of the kind that comprise each two end. members and two side mold plates, and means whereby the side plates can be moved indirections away from or towards the central longitudinal plane of the mold, withoutchange of their upright or moulding position, for the purpose ott expanding or of closing the mold and so that on completion of a moulding operation an operator can. after the'side plates have been thus withdrawn from engagement with the moulded material, readi- 1y lift the mold and leave the sides of the moulded material or a moulder block tree.

The invention consists in an improved form of theabove type otmold as hereinafter described with reference to the accompanying drawings.

In the improved mold the two side mold plates are so arranged that when they are operated to expand the mold they have a combined upward and outward movement and when they are shifted for the purpose of closing the mold they hauea combined inward and downward movement.

The improved mold comprises a frame, consisting of two end members held apart by rigid connecting pieces, the two side mold plates being mounted on or hinged. to the said frame.

The end members of the frame are the end members of the mold and they may be so formed that themold has either two closedor two open ends, or is closed at one end and open at the other. Stops, linings, partitions, or cores of any suitable known description may, when desired, be placed in the mold to produce any required design of block. i

The invention will be further described with reference to the accompanying drawbe opened or expanded.

|ngs, in which Fig. l is a perspective View of oneitorm and construction of the improved mold, one end thereof being closed and the other open; Fig. 2 is a cross section ot'the mold in Fig. 1 looking in the direction o'f the closed end, thefsides being in the normal or closed. position. Fig. 3 is a section looking in the direction of the open end .oi the mold, the sides being in the expanded or open position. Fig. 4 is a plan of .amold with two closed ends, a liner or plate for forming a key being arranged in the mold at each end. Fig. 5 is a plan view showing amoditied form of side members, said members being shown in closed position.

In the drawings (t represents an end member Ofii'tllB outer frame having a form or shape adapted to close in an end of a mold, and 2') indicates an end member which is adapted to leaveone end of a mold open. The side mold plates aredenoted by c. In constructing the improved mold two end membersare placed at any desired distance apart and are held rigidly in position by means of suitable rigid connections, such as the bars a which are shown secured to the end members a or o, by pairs of nuts 6.

The side plates 0 are mounted or supported on the frame in any convenient manner, but so, that they can be made to approach or recede from one another according as the mold is to be closed laterally or In the mold illus trated in Figs. 1 to 3, the side plates 0 are hinged to the connecting member (Z by means of wire'rod pieces f which are supported in eyes 9 provided in brackets or lugs g on the side plates 0, with their cranked ends 7" embracing the members (Z.

The lugs g arearranged' at such heights that when the sides of the mold are in the normal, closed or moulding position, the axis of each of the wire rods f will be substantially level or deadcentral with the axis of the adjacent member (Z. So long as the said axes occupy these positions, and the terminal portions of the wire rods f do not move away from the dead centre lines, such as line i Fig. 2, the sides will remain locked and immovable under the action of any direct pressure transmitted thereto by material deposited in the mold. By raising the sides so that the rods move away from the dead centre, the sides can be retracted or expanded so far as the connect ng member block that has been formed in the mold free The sides a are provided with means to prevent themnioving below the dead centre; such means may consist of stops j attached to the sides, and adapted to engage with the member d when the portions f lie in the dead centre lines. i

For raising or manipulating the sides 0, handles it are fixed thereto. These handles may he so positioned that when the side plates 0 are in the normal or operative position thehandles will rest upon the upper ineniberscl and thereby serve to prevent the sides from passing below the dead centres." In such case the stops 9' referred to above inayfbe dispensed with. The top edges of the sides 0 when these are in normal or operative position, would be level with the top edge of the closed end member or ends a of the mold. The bottom edges oi the sides 0 may be level with the bottom edges of the end member a or they may, as is customary, extend lower down, as shown at c in Figs. 1., 2 and 3, so that when the mold is used to mould a block of material placed on the top of a block or layer already formed, such extended portions will engage with or embrace the sides of the previously termed. block or layer, it it be of the same width. i ln'this way the side surtacesotthe supei-posed hloclcs or layers will be thus Kept sions plumb. 1 I M To guide the side ineinbers o in the r mo sent when air-open end member 7) is usediras in l, angle pieces Z may beattachod. by 011601 their limbs to the side member. and in such a manner that their other liinliwill hear upon. theinner face of theeiul ineinbe ll 'desii'ed, sides 0 niayi, as shown in Fig.

he made longer than is required for torinu v k I; iii the block or port on of wall of a given h} ;h. in order that the side extensions may in cases when the block to be' mould'ed is to he placed end, on the block or part already i orined. embrace the sides of the latlot. In this case the mold would have one closedeiid a and one open end member 7) V licatedin Fig. in which the sides a shown as having longitudinal exten- In order that the said already 'lforineil block or part may not be damag on it. the u'eiglitht the meinl'ie'r'niay be distributed over a larger area on that block or part, by providing the said end, member with. a weight-disti'ibuting plate iii.

It it be desired to form blocks which,

ahen'placed end-on in .a row, will be keyed together, loose key plat'e'or lining maybe placed at each end of a mold as shown in l' ig. l. The key plates m may have the term slidwn in l ig. 4, so that blocks with aproeiid block is in positionthe lifted placed in position to mold another portion jection at one end and a recess at the other can be moulded. T he linings may, however,

he of other shapes for keying and other purposes. Partitions may beplaced inside the mold to form halt, quarter or other sized blocks. The end member a of a moldmay,

instead of being flat, be joggled or otherraised. whereupon the cranked ends 7 of the rods f are lifted out of the dead centre lines so tliatthe sides can he then inoved outnaidly. turning upon their hinges. As soon as the sides are clear of the sides of the block or article, the'inold can he lifted bodily upwards. T he end key'or otherliuing plates. i any "be used, can then be removed or pushed away, and the bloclt left exposed to set hard and dry. I It the sides 0 0t theinold used for "forming separate'bloclzs are provided with the depending extensions '0 above mentioned, sand or the lilre can be placed upon the flat surface on whichthe blocks are to be m oulded, thesaid extensions being pressed into the sand until the bottom edges of itsends a are flush with the surface oi the layer of sandqj i-ilternatively. a wooden or other sole piece. of a widthto fit between the two'feX tensions of" the mold when the sides (2 are in normal position, may housed.

v lnbuilding a wall a mold with one closed end a and oneopen end Disfused'. The commencement or end portion oi every layer to he moulded to form the wall may consist Oi a separately' moulded block. When such 7 open Z) o'li'the mold with its sides in norinalposition is placed end on to it and .iii a manner to overlap the block more or less; "Concrete orothei' material is then placed in the mold, being thereby moulded on to the end of the block. Thi s done. tlie'inold' is expanded and oil the newly moulded portionand end-on to the last said portion. In this way portions areadded'in succession along the length of the wall until thelayer'i's com plete- The terminal portion'ot the 'layer may consist of it separately formed block similar to the commencing poi-tion ot the layer; When the layer is sufficiently dry or hard tobear the weight of thesuperposed layer, this supergosed layer can be proceeded with in the same mannen The improved moldcan be used in forming lintels or other parts of a wall or in moulding blocks or joists that are reinforced with longitudinally directed rods. In such cas s the end or ends a would be provided vith holes through which the rods would pass. ll here the rods are continuous, entering the open end 6 of a mold and traversing the holes in the closed end a, the mold can he slid along the rods into successive positions to form a continuous lintel or other reinforced part.

llaving thus described the nature of the said 'ivention and the best means we know of carrying the same into practical effect, we claim 1. ii bottomless mold of the class described, comprising two end members suitably spaced apart, rigid longitudinally disposed pieces connected at their opposite ends directly to said end members and holdingsaid end members relatively immovable,-

a pair of movable side mold plates, and connecting arms pivoted to the movable side plates and to the rigid connecting pieces, said movable side plates being adapted to swing upward and outward about the axes of the rigid connecting pieces from an operative position into an inactive position.

Q. A bottomlessmold of the class described, comprising an open. arched end member and a closed end member suitably spaced apart, rigid longitudinally disposed pieces connected at their opposite ends directly to said end members and holding said end mem ers relatively immovable, a pair of side mold plates, and connecting arms pivoted to the movable side plates and to the rigid connecting pieces, said movable side plates being adapted to swing upward and outward about the axes of the rigid connecting pieces from an operative position to an inactive position.

A bottomless mold of the class described, comprising a pair of end members suitably spaced apart, longitudinally disposed pieces rigidly connecting the two end members and adapted to hold them relatively immovable, a pair of side mold plates,

connecting arms pivoted to the movable side plates and to the rigid connecting pieces,

said movable side plates being adapted to swing upward and outward about the axes of the rigid connecting pieces from an, operative position to an inactive position, and

means carried by the side plates and adapted when the plates are in operative position to engage the rigid connecting pieces and limit the descent o'l said connecting arms below said axes, as and for the purpose described.

eL'A bottomless mold of the class described, comprising a pair of end members suitably spaced apart, longitudinally disposed pieces rigidly connecting the two end members and adapted to hold them relatively immovable, a pair of movable side mold plates, connecting arms pivotedto the movable side plates and to the rigid connecting pieces, the said movable side plates being adapted to swing upward and outwardly about the axes of the rigid connecting pieces from an operative position to an inactive position, and handle parts carried by the side plates for swinging the latter about said axes, said handle parts adapted, when the plates are in operative position, to engage the rigid connecting pieces and limit the descent of. said connecting arms below said axes, as and for the purpose described.

5. A bottomless mold of the class described, comprising an open arched end member and a closed end member suitably spaced apart, longitudinally disposed pieces rigidly connecting the two end members and adapted to hold them relatively immovable, a pair of movable longitudinally arranged side mold plates extending from one end member to the other and having parts 6X- tending through and beyond the open end member, and connecting arms pivoted to the movable side plates and to the rigid connecting pieces and adapted to swing upward and outwardly about the axes of the rigid connecting pieces from an operative position into an inactive position.

In testimony whereof we have signed our names to this specification.

BASIL SCRUBY. G. KETTELWVELL HARKNESS.

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