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JP3002053B2 |
PURPOSE:To obtain a device for machining cylindrical ceramics with a high efficiency. CONSTITUTION:The following components are arranged in order along a loop- form conveyor 1 provided with receiving rollers 2 on the top surface thereof:...
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JP2000018438A |
To provide a Hume pipe superior in the acidproof property while effectively utilizing various wastes by using a material comprising a slug composition including the waste molten slug and having a specific CaO/SiO2 mol ratio, alkali silic...
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JP3000277B1 |
[wrap up] [Task] Make it easy and safe to take out the inner mold. It has a roughly box-shaped outer mold and a tubular inner mold that is arranged inside the outer mold and has a drawing mechanism, and the tubular cavity between the out...
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JP2999602B2 |
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JP2000006132A |
To make variable the length of the molded face width of a straight- line section of an inner frame and make one inner frame deal with various kinds of PC products. An inner frame 12 of a PC product forming frame 10 is divided into corner...
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JP2997759B2 |
A conductive wire is electrically heated in a gas atmosphere, wherein a gas reacts with a constituent material of the conductive wire, under gravity-free or micro gravity state. A ceramic is formed on a surface of the wire sa an outer co...
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JP2994038B2 |
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JPH11333823A |
To provide a concrete molding core which is of a simple structure but is highly durable and easy to pull out during molding concrete. This concrete molding core is equipped with a cylindrical sleeve member 2 and a core member 3 provided ...
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JP2982823B2 |
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JP2983706B2 |
PURPOSE: To enable manifestation of strength without requirement of steam curing and to enable manifestation of strength even at low temperatures by blending cement with calcium aluminosilicate and an inorganic sulfate-containing cement ...
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JP2984153B2 |
PURPOSE: To provide a molding frame for molding a PC product as one which is capable of forming a projection on the inner surface of a PC product, even when the molding frame is parted along the inner surface of the PC product. CONSTITUT...
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JP2983727B2 |
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JP2981639B2 |
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JP2981581B2 |
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JP2979758B2 |
PURPOSE: To manufacture lightweight inorganic refractory tube in continuous form having the length of 1m or longer with favorable workability by a method wherein forming tube is removed from inorganic silicate foam, which is hardened on ...
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JPH11300731A |
To provide a method wherein demolding can be performed only by pulling out without providing structural deformation on the inner frame. A concrete block is prepd. by using a form consisting of an outer frame 9 consisting of side plates 1...
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JPH11293764A |
To reduce cost required for reinforcing bar fabrication and assembly without lowering the earthquake resistance of a column and also reduce construction period for the whole of a building. A precast embedded formwork 1 for column compris...
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JP2967332B2 |
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JP2968615B2 |
PURPOSE: To automatically fasten and loosen a bolt for assembly of a form, which is used to subject a concrete product to a centrifugal compacting shaping, always stably even though the level of form supporting has varied due to wear of ...
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JP2964476B2 |
To carry out in one operation wedge member insertion work for forming a slit on a grooved block, and demolding work of a core. When a core 6 is removed, by turning a shaft part 13 at almost 90°, an elevation plate 14 is lifted up via a ...
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JPH11277520A |
To provide a centrifugal force molding wherein amt. of generation of sludge is largely suppressed and workability is good and which exhibits high strength and low cost and effectively utilizes large amt. of industrial waste incineration ...
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JP2957644B2 |
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JPH11268022A |
To realize a tube, which is excellent in restorability and dimensional stability and with which concrete products can be repeatedly molded, by a method wherein a paint made of an organic polymer material is coated on a seamless knitted f...
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JPH11254415A |
To manufacture a hollow structural material with recesses and projections on its inner face to be used for structural building by a comparatively simple structure and release an inner frame quickly from the formed structural material. A ...
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JPH11254420A |
To prevent the generation of inconveniences caused by the pulsation of a mortar pump in a device for placing mortar on the outer periphery of a cast iron pipe in the state of standing in upright. A mortar feeder is provided with a mortar...
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JP2599791Y2 |
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JPH11245217A |
To provide a mold for a bottomed ceramic tube molding which is suitable for mass production and can reduce the generation of the defective molding of the bottom part of the molding and a method for producing the molding. A molding machin...
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JP2945521B2 |
PURPOSE: To automatically detect biting of a socket into a screw member to release the state, in a device for automatically tightening and loosening a screw member such as a bolt and nut. CONSTITUTION: When return action of a tightening ...
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JP2942734B2 |
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JPH11226937A |
To save manufacturing cost by rationalizing a working line when manufacturing concrete moldings. When making an inclined wall pipe 1 which makes up a prefabricated manhole in the form of a concrete molding, a form for molding the incline...
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JP2937741B2 |
PURPOSE:To obtain side forms for manufacturing a precast block having mechanism suitable for a precast block manufacturing device by a method wherein side form supporting frames are supported on a base with tiltable quadric crank mechani...
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JP2934080B2 |
PURPOSE: To reduce the revolving drive force of the aggregate and resin solution mixer provided to the leading end of the screw conveyor inserted in a rotary retaining mold and to eliminate the nonefficiency and trouble due to the curing...
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JPH11216717A |
To prevent cracks at forming and breakages at sintering from developing in a blind ceramic tube by a method wherein a rubber forming mold consists of a rubber cylinder part forming mold for forming the cylinder part and a rubber bottom p...
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JP2933251B2 |
PURPOSE: To prevent an incombustible outer pipe from cracking by the expansion of a synthetic resin pipe due to the pressure of fluid flowing in the interior of the pipe joint by a method wherein the outer peripheral surface of the synth...
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JP2932176B2 |
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JP2928316B2 |
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JP2928315B2 |
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JP2929117B2 |
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JP2928317B2 |
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JPH11207725A |
To easily finish the inner face of a Hume pipe without generating sludge, that is, industrial waste in a centrifugal force molding process and improve the working efficiency and the working environment and further, eliminate an occupatio...
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JP2930707B2 |
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JPH11198118A |
To shorten time necessary for completion, to save labor in operation, to reduce fatigue in work, etc., by simplifying mounting work of a packing to a form main body. A guide rail 31 is provided on releasable bulk board 17A on one side of...
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JPH11198127A |
To provide a method for injecting and filling concrete by which it is possible to prevent a change in the fluidity and compounding of the concrete from occurring and also prevent the faulty filling of the concrete or the non- homogenizat...
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JP2922196B1 |
[wrap up] [Task] Provided is a resin concrete segment having a mirror surface on the inner surface, a small inner surface roughness coefficient, excellent corrosion resistance by hydrogen sulfide or the like on the inner surface lining s...
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JPH11188718A |
To rapidly separate an inner form from a hollow structural material having an uneven inner surface produced and molded by a relatively simple mechanism and utilized for a construction. A form consists of a cylindrical outer form 1 and th...
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JPH11188717A |
To provide a method for producing a concrete centrifugally molded article capable of suppressing an explosion phenomenon at the time of a fire even when high strength concrete is used. Concrete is charged in a form and centrifugal force ...
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JP2597750Y2 |
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JP2914574B2 |
A concrete pipe making machine having a combined vibrating core (37) and counter rotating packerhead assembly (38) is used with a mold (24) to prepack and vibrate concrete within the mold (24) to produce concrete pipe (100). A controller...
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JP2916765B1 |
[wrap up] [Task] It is a lightweight core type with a simple structure without splitting it into upper and lower parts or providing a complicated expansion / contraction mechanism inside, and it can be manufactured at low cost and it is ...
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JPH11170231A |
To employ a recyclable packing material for a form device. This packing material is a band-like rectangular parallelepiped- shaped elastic body 30, one side of which acts as a fitting surface and the other side of which as an abutting su...
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