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Patent Searching and Data


Matches 651 - 700 out of 3,978

Document Document Title
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 ...  
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 ...  
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 ...  
JP2957644B2  
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...  
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 ...  
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...  
JP2599791Y2  
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...  
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 ...  
JP2942734B2  
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...  
JP2937741B2  
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...  
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...  
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...  
JP2932176B2  
JP2928316B2  
JP2928315B2  
JP2929117B2  
JP2928317B2  
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...  
JP2930707B2  
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...  
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...  
JP2922196B1
[Summary] A subject inside has a small inside rough degree coefficient, and is excellent in a specular surface at the erosion-proof nature by hydrogen sulfide of inside 覆工面, etc. , and a resin concrete segment with large intensity ...  
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...  
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 ...  
JP2597750Y2  
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...  
JP2916765B1
[Summary] Subject Without considering it as an up-and-down division type, or preparing a complicated 拡縮 mechanism in an inside, are an easy structure and A lightweight core type, Moreover, 装脱 work is also very easy while being ab...  
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...  
JP2912398B2  
JPH11156841A
To enable the removal of inside frames manually in a relatively narrow space. A form removing apparatus 1 is equipped with a dolly 11 which can move in the extraction direction B1 and various apparatuses which change the shape of inside ...  
JPH11156839A
To produce Hume pipes resistant to concrete corrosion by sulfur oxidizing bacteria. A corrosion resisting agent 1.2-2.5 in specific gravity which has growth inhibiting effects on sulfur oxidizing bacteria, especially one consisting of a ...  
JPH11156840A
To obtain a concrete product by centrifugal molding which has good internal compaction properties even at low ambient temperatures. After a concrete composition containing water, a high performance water reducing agent undiluted solution...  
JP2900951B2
A method of fabricating a superconducting ceramic pipe including the steps of: melting a ceramic powder having a predetermined composition to form a melt; filling a supporting tube with the melt by a suction caused by a vacuum pressure; ...  
JP2898565B2
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...  
JP2899472B2  
JP2895965B2  
JP2897183B2  
JPH11129039A
To fabricate the cylinder unit in a short time and a low cost, wherein a diameter in an axis direction is different and a thickness is practically the same as that of a raw material cylinder. According to the cylinder unit forming method...  
JP2893297B2  
JP2888449B2  
JP2886082B2  
JP2884440B2  
JPH1190916A
To provide a form for manufacturing an obliquely-cut box culvert which can be used even when both of a slant angle and dimensions are varied and shows excellent efficiency on the occasion of manufacturing the obliquely- cut box culvert. ...  
JP2878832B2  
JP2879300B2  
JP2592938Y2  

Matches 651 - 700 out of 3,978