PURPOSE:To contrive to improve control accuracy by achieving the feeding control for heated and pressure medium into a bladder by means of flow rate control values providing in a feeding flow path and an exhausting flow path, and the pressure and/or temperature detecting sensors for the feed back into said valves. CONSTITUTION:The feeding flow path 11a and the exhausting flow path 11b of steam are...

A laser welding method and apparatus for welding stacked coated members in which voids in the welds are positively eliminated. A spacer is disposed between the two members to be welded. This provides a path for discharging gas formed by heating the coating material. The method and apparatus of the invention are useful for the laser welding of base members coated with metals having a lower melting ...

A transport cart for material carriers such as bobbins or drums having threads or other elongated material wound thereon, has a cart frame with wheels and a tilting frame journalled in said cart frame. The tilting frame carries two parallel skids for supporting a material carrier on its rollers. The tilting frame is tiltable between a first position in which the skids extend horizontally for loadi...

A solid bowl centrifuge for dewatering sludge exhibiting a conical solid bowl and an inner rotor part which revolving at different speeds and has apparatus for axially transporting solid components for improved separating and reduced energy consumption. The sludge is introduced at a tapered end and solid components are discharge at an expanded end. Introduction of sludge is effected through a radi...

A centrifuge bowl mount with a base and having one or more toggle members disposed thereon which are movable from a non-contact or non-engaging first positon to a contact or engaging second position in which they either (a) contact or engage the bowl or (b) move other members such as seal members disposed on the base or move push membes which in turn move the seal members to contact or engage the ...

The knit-sewn material for covering fire-resistant rubber or PVC belts is constructed in such a way that its surface represents a fibrous layer and two basic arrangements of yarns, preferably with a core of low thermal shrinkage, are permanently joined together by means of a synthetic filament or spun yarn, advantageously of low thermal shrinkage. The material is used for manufacturing conveyor be...

An optical relay having a pair of simple lenses and an opaque barrier defining an aperture. In a spectrometer, the optical relay is positioned between a light source and an opaque barrier defining a slit to focus light of a reference wavelength wr onto the slit. The location of the aperture and the choice of wr are selected so that the flux of light through the slit is substantially flat as a func...

A centrifuge bowl mount with a base and having one or more toggle members disposed thereon which are movable from a non-contact or non-engaging first positon to a contact or engaging second position in which they either (a) contact or engage the bowl or (b) move other members such as seal members disposed on the base or move push membes which in turn move the seal members to contact or engage the ...

A wedge arrangement for affixing a tool mounting means onto a base member in such manner that substantially no wear occurs between the mounting means and base member. The mounting means has a tapered portion which is wedgingly received within a correspondingly tapered cavity provided in the base member, and that part of the base member which defines the tapered cavity completely surrounds that par...

An electrode of a high-frequency instrument for medical treatment, for example of a needle-like incision instrument or of a coagulation instrument or the like, working at high frequency, is made of a conductive ceramic material or provided with a coating of a conductive ceramic material.

An electrode of a high-frequency instrument for medical treatment, for example of a needle-like incision instrument or of a coagulation instrument or the like, working at high frequency, is made of a conductive ceramic material or provided with a coating of a conductive ceramic material.

A dispensing gun for fluids such as urethane foam and the like is provided in which separate fluid components are individually led to the gun and are mixed within a replaceable mixing and dispensing nozzle member. After gun use, the used nozzle member can be removed for cleaning or replacement with a fresh nozzle, thereby obviating difficulties encountered in cleaning and purging the entire gun. A...

By the vapor phase reaction of benzene or a monoalkylbenzene with an alkylating agent in the presence of a specific catalyst obtained by subjecting a zeolite to a treatment with a gas containing a silicic acid ester and then a calcination in an oxygen-containing gas, said zeolite being 10 or more with respect to its molar ratio of SiO2/X2O3 in which X is at best one member selected from the group ...

A process and equipment for purifying oil are proposed, wherein the oil is introduced into a closed chamber partly filled with a liquid whose density is higher than that of the oil to be purified. The purified oil is discharged from that part of the closed chamber which is not filled by the liquid and which is located above the liquid-filled part of the chamber.

A latex of crosslinked silicone is prepared by emulsifying a vinyl endblocked polydiorganosiloxane and an organosilicon compound having silicon-bonded hydrogen atoms with water and surfactant, adding a platinum catalyst and then heating the emulsion to form the latex. Colloidal silica can be added to the latex to provide a product which is tougher. The water in the latex can be evaporated to provi...

A method of drilling long and straight holes in rocks is based on the use of a drill rig which may be aligned by means of a laser beam and which comprises a hollow drill stem with a pressure device for guiding the drill stem in a correct direction on applying pressure against the wall of the drilled hole. The laser beam is sent into the hollow drill stem towards an optical detecting unit placed in...