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JP09038939 |
To reduce the wt. of a core member and to enhance workability by processing a resin low in specific gravity and having impact strength into a columnar shape to use the same as the core member. For example, a columnar monomer casting nylo...
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JP09038934 |
To obtain a concrete product excellent in workability by forming the inner wall surface of a hollow part opened at least at one end surface thereof formed to a concrete product main body into an embossed surface having an arched cross se...
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JP09038928 |
To provide a clamping socket capable of limiting the clamping torque of a lamping member without using a clamping torque limiting mechanism. The rotary driving force of a drive shaft 51 is converted to that of a rotary shaft 55 through a...
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JP09038940 |
To easily and precisely produce a concrete product having a through- hole. An apparatus 1 for producing a concrete product having a through-hole is constituted of an outer form 5 having demolding holes 6 (6A, 6B) opened to both mutually ...
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JP09038941 |
To easily obtain a coated steel pipe pillar having dense appearance in a factory without applying post-execution on the spot after the building of a pillar. Through-holes 2 are bored in a steel pipe 1 at a plurality of the places of the ...
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JP09038929 |
To provide a clamping mechine simple in structure and to provide a nut member rotating device rotating the nut member preliminarily screwed with a clamp member in a clamping direction. When a rod member 46 takes up a cable 47 up to the u...
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JP09029729 |
To mass-produce a concrete pipe of which the inclined end surface is well finished by tightly clamping an upper palette to the upper end of an outer mold to hold the upper end of the concrete pipe to reverse the same before demolding the...
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JP09024512 |
To provide a form clamping device which is simply structured and low-priced. Flanged parts 4, 5 provided in such a manner that they protrude from the punch 2 and the lower die 3 of a form respectively, are held by a pressing device 30 to...
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JP09002853 |
PURPOSE: To efficiently defoam a centrifugally formed article by using a slag- reducing agent containing bentonite, silica fume and/or fly ash fume and a defoaming agent as main components. CONSTITUTION: The objective slag-reducing agent...
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JP09001535 |
PURPOSE: To make it possible to support a square steel tube without molding failure such as irregular thickness or noise at the time of centrifugal molding by constituting the support members on a diagonal line provided at the positions ...
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JP09001534 |
PURPOSE: To provide a method for efficiently manufacturing a concrete pipe capable of efficiently defoaming without decreasing the strength without sludge. CONSTITUTION: Antifoaming agent is added to concrete, and the centrifugal force o...
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JP09001533 |
PURPOSE: To manufacture a centrifugal molding having no surface roughening or particularly a concrete product by rotatably treating at an initial speed before centrifugal force molding. CONSTITUTION: An initial speed stage of shorter rot...
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JP08323731 |
PURPOSE: To provide a method to mold a PC pipe using a centrifugal molding process by which it is possible to mold easily the PC pipe with an uneven pattern, on the surface, such as a stacked stone pattern or a chipped pattern. CONSTITUT...
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JP2588128 |
PURPOSE: To provide the formation method of a preliminary stewing type manhole pump station which is easy to install. CONSTITUTION: A dividable molding form 2 is vertically installed to a form base 1. An offset ring type 3, which forms a...
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JP2588872 |
PURPOSE: To obtain a manufacture enabling simple and inexpensive manufacture of a secondary product of concrete having an exterior material fitted beforehand on an arc-shaped surface. CONSTITUTION: An exterior material A is arranged in a...
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JP08310843 |
PURPOSE: To reduce the yield of whitewash and the water-to-cement ratio of concrete and to improve the strength of a centrifugally compacted body by incorporating bentonite and heat-treated bentonite into a centrifugally compacted concre...
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JP08309728 |
PURPOSE: To obtain a uniform and predetermined thickened concrete tube in a simple construction by introduction-removing excessive concrete on the inner surface of an uncured or semi-cured concrete tube through a continuous groove, and f...
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JP08309727 |
PURPOSE: To keep the ignition loss of a concrete component in sludge lower over one day or longer, and recycle the sludge water as the original material of a concrete secondary article by keeping constant a density of sludge water contai...
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JP08309723 |
PURPOSE: To provide a spacer in which it is possible to decrease a disposable part and to decrease waste of a material during manufacturing and after use and which can be simply decomposed and removed after use and can be simply mounted ...
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JP2583827 |
PURPOSE: To easily manufacture a relatively low-cost corner block for constituting a bent part of a side ditch. CONSTITUTION: A cylindrical outer form 20 and a cylindrical inner form 21 are concentrically placed on a bottom form 19. Two ...
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JP08300340 |
PURPOSE: To prevent environmental deterioration caused by dust generated in a conventional method because the inner surface of a hollow concrete round pipe by a centrifugal molding method is rough and it is necessary to increase the diam...
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JP08295556 |
PURPOSE: To obtain excellent performance and to mass-produce the alumina formed article by mixing a glass inorg. material and an adhesive with alumina and forming the mixture with a press. CONSTITUTION: A glass inorg. material 2 which is...
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JP08294992 |
PURPOSE: To provide an anticorrosion concrete molding having an enhanced adhesiveness of a plastics layer eringing about anticorrosion property, a simple manufacturing process and inexpensive manufacturing cost, a short period of manufac...
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JP08290975 |
PURPOSE: To stabilize qualities and to prevent occurrence of defects such as sink mark, crack, weld line, etc., by blending a ceramic powder material with an organic binder comprising a lactic acid polymer as an active ingredient. CONSTI...
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JP08291591 |
PURPOSE: To enhance adhesion by arranging recesses-projections in a ground design shape over the whole surface of an inner peripheral wall of a contour body for a column, and pressing concrete in recessed parts by filling the concrete in...
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JP08281629 |
To obtain high-strength concrete having excellent physical properties and uniform wall thickness and smooth surface in the shortest period of time by a method wherein molding through centrifugal rotation, internal vibration and rolling c...
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JP08281630 |
PURPOSE: To provide a device for finishing simply the inner face of a Hume pipe, efficient and functional and requiring no skill, for which the space of installation site, cost thereof and the like are reduced, and also provide its manuf...
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JP08277628 |
PURPOSE: To facilitate the setting work and releasing work of an inside form to save the labor for formwork, and use a form of relatively simple structure using the force of air, thereby also reducing the weight and the construction cost...
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JP08267442 |
PURPOSE: To suppress the deterioration of an inner periphery by removing the front layer of the inner periphery of a Hume tube at the time of molding the tube and/or after curing it. CONSTITUTION: A reinforcing bar cage knitted in a cyli...
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JP08259227 |
PURPOSE: To efficiently obtain hollow acicular calcium fluoride by bringing an acicular material having a two-layer structure of a calcium fluoride surface layer and a calcium carbonate inner layer into contact with a selective dissolvin...
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JP2568051 |
PURPOSE: To manufacture simultaneously a plurality of prestressed concrete poles having coupling flanges at their both ends. CONSTITUTION: A plurality of reinforced cages 1' are formed. Each of them is formed by connecting both ends of a...
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JP2568380 |
PURPOSE: To smoothly execute an assembly line by moving a form set by a form unit to another place, placing concrete, vibrating it, moving it to another place, steam curing it, returning it to an original unit, removing it, releasing it ...
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JP2564086 |
PURPOSE: To prevent the occurrence of cracks due to the supporter part at the time of baking a cylindrical molded body when a core metal is supported by the supporter part with respect to the inside surface of an extrusion molding machin...
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JP2564108 |
PURPOSE: To provide a form apparatus revolving the movable bottom panel part molding the bottom part of a bottomed cylindrical concrete product by the step of a concrete product so as to open the same when the concrete product is hung up...
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JP08229924 |
PURPOSE: To facilitate manufacture of a highly pure tough silicon pipe by a method wherein conductive materials charged into annular gap formed between two bottomless crucibles are melted by heating from inside and outside with an induct...
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JP08229323 |
PURPOSE: To easily impart the function corresponding to a functional material by incorporating a functional material such as magnetic substance, catalyst, ion supplying and ion collecting materials into a porous ceramic filter formed by ...
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JP08229904 |
PURPOSE: To simply produce a concrete molded object having a hollow hole of which the cavity is larger than the opening part of the hollow hole and has an arbitrary shape and to provide a core mold suitably adapted to the production of t...
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JP08231260 |
PURPOSE: To produce a solid matter high in mixing ratio of a coal ash, high in strength, low in dispersion of strength and excellence in dimensional stability to water by mixing a specified coal ash and a calcium compd., forming and subj...
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JP2557334 |
PURPOSE: To provide a forming device for automatically and efficiently forming a polygonal reinforced basket consisting of a multiple number of vertical reinforcing bar groups and spiral reinforcements. CONSTITUTION: An electrode ring 22...
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JP2558216 |
PURPOSE: To smoothly drain water by eliminating the intrusion of leaves and shingle or the like into a water passage through water passing holes of a draining concrete pipe, and to obtain the excellent permeability by eliminating the pen...
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JP2556952 |
PURPOSE: To increase the strength at inserting hole portion and, at the same time, make the drawing-out of piping member unnecessary by a method wherein inserting holes, through which tendon is passed, are made of piping members, at the ...
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JP08216144 |
To easily manufacture a preform for a composite material of a vehicle by pouring a suspension obtained by adding an inorganic binder, an organic binder and a coagulant to fibers in a vacuum suction unit, manufacturing a sheet-like materi...
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JP08216134 |
PURPOSE: To perform clamping and opening of a form by a simple rotating operation by connecting outside side boards with inside side boards through a moving mechanism consisting of a link mechanism which converts a pushing and pulling mo...
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JP08216137 |
PURPOSE: To provide a method for preparing a paper pipe for a concrete form which strengthen the butting part of the first layer being brought into contact with the outer periphery of a mandrel manufacturing a cylindrical form and finish...
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JP08217569 |
PURPOSE: To easily obtain a light-weight formed article by adding water to a cement forming material consisting essentially of cement, aggregate, reinforc ing fiber, thickener and a weight reducing material, kneading the mixture, extrudi...
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JP2547129 |
PURPOSE: To provide a uniform concrete pipe having prescribed thickness by simple constitution in the case of compacting the concrete pipe by centrifugal force and molding it by pouring concrete into a formwork and discharging excess con...
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JP2547140 |
PURPOSE: To provide a concrete pipe with a uniform and given thickness by a simple method in which, in molding with a mold fastened by a centrifugal force, a hollow roller is used for finishing the internal surface of the pipe by rotatin...
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JP08189071 |
PURPOSE: To improve constructing performance by integrally molding a bottom plate with downward inclination in order to provide the gradient of water conveyance, or the complex of a bottom plate and a foundation in a factory. CONSTITUTIO...
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JP08187714 |
PURPOSE: To provide a method for manufacturing a long cylindrical or columnar ceramics by connecting two or more short ceramics by the connecting strength equivalent to the strength of the original ceramics. CONSTITUTION: This method for...
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JP08183018 |
PURPOSE: To realize the fully automatic removal of burrs from the edge faces of a concrete tube by a method wherein the edge face of the concrete tube supported by a concrete tube anchoring platen is ground by a first grinding means and ...
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