A method and apparatus is disclosed for reducing metal ore to sponge metal in a vertical shaft, moving bed, gaseous reduction reactor by controlling the amount of gas intermixing between the reduction and cooling zones of the reactor to result in increased productivity and improved carburization of sponge iron. In accordance with a preferred embodiment, process efficiency is maximized while capita...

PURPOSE:To reduce the system cost and utilize the residual heat of solar energy for cooling by passing air by providing an air cooled radiator in the circulation channel between a solar energy collecting device and a heat accumulating tank. CONSTITUTION:The solar energy collected at a solar energy collecting device 1 is sent to the heat exchanger 3 of a heat accumulating tank 4 through the heating...

The chair of the present invention comprises a foldable frame of metal or other rigid material, comprising a fabric or plastic seat rest supported between a pair of tubes or rods, to the ends of which are hingedly connected a pair of telescoping tubular back supports, which, in open position extend upward, supporting between them in taut relation a backrest, also of fabric or plastic, which is fur...

A system for manufacturing a ring-shaped body where linear material is fed to a curved constituent member for forming said ring-shaped body substantially along a normal line of the constituent member at a winding point where the linear material is wound around said constituent member. The linear material is helically wound with a predetermined tensile force around a periphery of said curved consti...

A bottle mouth defect inspection apparatus having a ring-shaped light source for irradiating a ring-shaped bottle mouth portion to be inspected, a photo-electric conversion sensor for converting a reflected light from the bottle mouth portion into an electrical signal and an electronic processor for processing the electrical signal to thereby inspect the existence or not of defects on the bottle m...

A microcomputer includes an interrupt signal generator for supplying a CPU with an interrupt signal at predetermined time intervals, and a monitoring timer reset by a reset signal generated by the CPU in response to the interrupt signal. An abnormality is sensed on the basis of expiration of time in the monitoring timer. A flag for resetting the monitoring timer during a first processing started b...

Mixtures containing active hydrogen compounds such as polyols and aminoalcohols useful for the production of polyurethane foams and also containing trichlorofluoromethane or 1,1,2-trichloro-1,2,2-trifluoroethane as foam blowing agent, are stabilized against reaction of the active hydrogen compound(s) with the chlorofluorohydrocarbon by incorporating a stabilizing amount of amylene, ortho-(isoprope...

This invention discloses an instrument for securing an inner diameter which expands the inner cavity of a tubular organ such as the blood vessel and keeps the expanded state at least for a predetermined period, and a catheter which is used for keeping this instrument at a predetermined portion of the tubular organ and can move and withdraw the instrument from the kept position. The instrument for ...

Mixtures containing active hydrogen compounds such as polyols and aminoalcohols useful for the production of polyurethane foams and also containing trichlorofluoromethane or 1,1,2-trichloro-1,2,2-trifluoroethane as foam blowing agent, are stabilized against reaction of the active hydrogen compound(s) with the chlorofluorohydrocarbon by incorporating a stabilizing amount of amylene, ortho-(isoprope...

Mixtures containing active hydrogen compounds such as polyols and aminoalcohols useful for the production of polyurethane foams and also containing trichlorofluoromethane or 1,1,2-trichloro-1,2,2-trifluoroethane as foam blowing agent, are stabilized against reaction of the active hydrogen compound(s) with the chlorofluorohydrocarbon by incorporating a stabilizing amount of amylene, ortho-(isoprope...

A plain bearing comprises a metal cylinder as an external member and a resinous cylinder as an internal member, in which the outer surface of the resinous cylinder is firmly engaged and bitten with a concavo-convex portion formed on the inner surface of the metal cylinder. A process for manufacturing the plain bearing comprises producing the metal cylinder, forming the concavo-convex portion on th...

A process for installing seismic sensors inside a petroleum production well equipped with a cemented casing involves arranging the seismic sensors along an outer surface of the casing before being descended into a drilled well and cementing a ring-shaped space between the casing and the well so as to acoustically connect the sensors to geological formations. The sensors and transmission cables whi...

The coverage and adhesiveness of metal plating to polycarbonate resin is enhanced by treating the resin prior to etching with a swellant composition comprising a compound represented by the general formula: R1 (OCn H2n)m O - R2 wherein R1 and R2 are independently selected from the group consisting of aryl groups and alkyl groups of 1-4 carbon atoms, n is 2 to 4 and m is 1 to 5. The subsequent etc...

Porous particles of crosslinked PVC are disclosed. The particles are skinless and have a fast powder mix time. Processes to produce the novel particles are also disclosed.

Porous particles of crosslinked PVC are disclosed. The particles are skinless and have a fast powder mix time. Processes to produce the novel particles are also disclosed.

Porous particles of crosslinked PVC are disclosed. The particles are skinless and have a fast powder mix time. Processes to produce the novel particles are also disclosed.

Porous particles of crosslinked PVC are disclosed. The particles are skinless and have a fast powder mix time. Processes to produce the novel particles are also disclosed.