摘要:
A mold for manufacturing interlocking, dry-cast concrete retaining wall blocks in an upright orientation comprises a mold box comprising two side walls joined to end walls to define a mold cavity, a top face, and a substantially open bottom face. Partitions configured to define a space between adjacent blocks or a space between a block and a side of the mold box extend parallel to the side walls of the mold box substantially from the top face into the mold cavity, to form first transverse portions of the profile of the top and bottom surfaces the blocks which do not include any undercut portion that would impede removal of the mold box in a substantially vertical direction. At least one removable insert comprises insert members which, when positioned in the mold box beneath the partitions, form remaining transverse portions of the profile of the top and bottom surfaces, the remaining transverse portions including at least one undercut portion. The insert members, when in position in the mold box for casting, are substantially in lateral alignment with respective bottom surfaces of at least some of the partitions and can be inserted and retracted through openings in an end wall of the mold box.
摘要:
A precast reinforced concrete structure including a precast slab. The precast slab includes at least one longitudinal hole and a longitudinal edge. The longitudinal hole is parallel to the surface of the precast slab and is disposed in the vicinity of the longitudinal edge. The longitudinal edge includes a plurality of transverse recesses disposed at intervals, and the transversal recesses intersect with the longitudinal hole.
摘要:
The present invention is directed to a body formed of a refractory material and a method of forming a refractory body. The body formed of a refractory material comprises a plurality of slits formed into one of its surfaces. The slits relieve thermal stress in the body and prevent cracking that would otherwise occur. In one embodiment, the invention can be a body formed of a refractory material comprising: a first surface and an opposing second surface; and a pattern of stress relief slits formed into at least one of the first and second surfaces of the body.
摘要:
A ceramic filter element of ceramic material has an exterior surface that is provided with structural elements. The structural elements are produced by a non-cutting method. The structural elements are molded in the ceramic material in the form of grids, periodic patterns, irregular patterns, lettering or labels.
摘要:
A method apparatus and product is provided which includes the use of an S-Tile mold, combined with a scoring/knifing process, which allows for subsequent controlled separation of what would normally be an S-Tile into two separate tile sections each having a general C-shaped cross section. This allows for two types of tiles (S-tiles and Two-Piece Mission tiles) to be made from one type of mold (S-tile). A method, apparatus and product is also provided which includes the use of an S-Tile mold, including or combined with a scoring, knifing, or forming process for providing a channel or other suitable shape, which allows for an S-Tile to be produced which appears to be two separate but cooperating tile sections having a general C-shaped cross section. The longitudinal channel 9 or other shape and or proximate area may also be painted, colored, or otherwise darkened in order to accent a “shadow” effect which causes the eye to better perceive separation of the two portions 6 and 7 of the tile 5. A method is also provided which allows for tiles to be broken or not broken depending on the installer's preference.
摘要:
Device for manufacturing stones, provided with a frame, with a mould having boundary walls defining moulding rooms inside the mould, with a stamp movable up-and-down arranged above the mould and with a table arranged under the mould. Filling pieces are movable between a first position, in which they are located under the mould and whereby, see in top view, at least parts of the filling pieces project from the walls for forming recesses, and a second position, in which the filling pieces are located beside the mould, seen in top view. Extensions are connected to the filling pieces, those extensions being movable forward and backward and co-operating with guide means for guiding the filling pieces, whereby the extensions project from the mould in the first position.
摘要:
A mold for manufacturing interlocking, dry-cast concrete retaining wall blocks in an upright orientation comprises a mold box comprising two side walls joined to end walls to define a mold cavity, a top face, and a substantially open bottom face. Partitions configured to define a space between adjacent blocks or a space between a block and a side of the mold box extend parallel to the side walls of the mold box substantially from the top face into the mold cavity, to form first transverse portions of the profile of the top and bottom surfaces the blocks which do not include any undercut portion that would impede removal of the mold box in a substantially vertical direction. At least one removable insert comprises insert members which, when positioned in the mold box beneath the partitions, form remaining transverse portions of the profile of the top and bottom surfaces, the remaining transverse portions including at least one undercut portion. The insert members, when in position in the mold box for casting, are substantially in lateral alignment with respective bottom surfaces of at least some of the partitions and can be inserted and retracted through openings in an end wall of the mold box.