Abstract: A method and apparatus for casting a cast-iron element with a non-iron interior area utilizes a molding core formed of a glass material, which may be tubular or solid and may, as desired, be entirely enclosed within the casting.

Abstract: Convection heat treating apparatus for thermal treatment of a traveling substrate that maintains the temperature of the treatment gas so as to eliminate formation of streaks in the substrate without overheating the interior walls of the machine. A pivotally mounted flow control means has integrally formed portions to simultaneously control the flow of treatment gas through an application chamber inlet, and adjacent branch opening which allows treatment gas to pass from a distribution chamber to return chamber for reheating and recirculation without passing through the application chamber and onto the fabric web, and a by-pass opening disposed radially outwardly from the branch opening which permits the treatment gas to pass directly to the circulation means without reheating.

Abstract: An infrared heating apparatus for drying a traveling textile fabric web or the like wherein radiators having a first gas-heated radiator surface and a second electrically-heated radiator surface are pivotably mounted for selective alternating movement of the radiator surfaces into and out of heating relationship to the traveling fabric web. The apparatus enables the selective cost-efficient use of differing energy sources.

Abstract: A textile machine for continuously convectively heat treating a textile fabric web with ambient air, includes a loop for ambient air, a blower in the loop forcing the ambient air through the loop, an intake chamber upstream of the blower in the loop, a heat exchanger in the intake chamber for heating the ambient air, the heat exchanger having a hot side, a first section for preheating a first partial flow diverted from the ambient air containing harmful substances and a second section for heating a second partial flow diverted from the ambient air, a connecting conduit in the intake chamber receiving the first partial flow from the first section, a burner disposed inside the intake chamber receiving the first partial flow of the ambient air from the connecting conduit, a combustion chamber adjoining the burner in the intake chamber for thermal after-burning of the harmful substances at a given sufficient combustion temperature, another conduit for feeding heat liberated in the after-burning to the hot side of

Abstract: A chain conveyor of a fabric web stretching machine includes input and output sides of the machine, an endless roller chain having a forward and rearward running parts, chain links, chain bolts absorbing longitudinal chain forces, stretching devices disposed at each of the chain links, a guide rail disposed at the forward running part forming a support for horizontally directed transverse forces to be exerted on the fabric web, chain wheels disposed at the input and output sides of the machine forming transitions between the forward and backward running parts each having teeth engaging in the chain at respective longitudinal ends of the guide rail, a transverse force roller being associated with each of the stretching devices for transferring transverse forces, roller bearings on which the transverse force rollers are supported about a vertical axis coaxial to a respective one of the chain bolts, the transverse force rollers abutting an outer surface of the guide rail facing away from the fabric web, the toot

Abstract: An infrared dryer includes an operating duct being at least as wide as a spread out textile fabric web passing through the duct for treatment, outer ducts disposed outside the operating duct, heating walls formed of adjacent wall elements substantially parallel to the surface of the fabric web separating said operating duct from the outer ducts, infrared radiators disposed on the wall elements, pivot axes about which the wall elements are pivotable through substantially 180.degree. for moving the infrared radiators between the operating duct and the outer ducts, an air suction device, and a device for directing air into the air suction device from any of the ducts containing the infrared radiators at a given moment.

Abstract: A stretching machine for webs of textile material includes a feeding region of the machine for receiving a web of material in a given travel direction, a driven drawing-in cylinder for engaging the web of material, mutually and adjustably spaced apart chain tracks being pivotable about vertical axes in the feeding region, endless needle chains each being deflected in a respective one of the chain tracks for running into and out of the web of material, a needle engagement device downstream of the drawing-in cylinder in the given travel direction of the web of material for running the web of material onto the needle chains, a support for the drawing-in cylinder being movable in the given travel direction of the web of material, and a device connected to the support for maintaining a constant distance between the drawing-in cylinder and the needle engagement device.

Abstract: Applying evaporable finishing substances such as high-refinement media, dyes and optical brighteners, by evaporating the finishing substance and transferring to the textile material in the vapor phase via a line system. Smudging or smearing and re-evaporation of the vapor-deposited material in a continuously operating finishing system is avoided according to the invention by heating the textile material prior to the vapor deposition to a treatment temperature above the evaporation temperature and by using a finishing substance with a dew point in the finishing substance/transport mixture below the treatment temperature of the textile material.

Abstract: A convection drying and/or fixing machine for the thermal treatment of a textile fabric web with a treatment gas includes nozzle boxes above and below the fabric web extending across the width of the fabric web, the nozzle boxes having inlet openings with a given size and shape for receiving the treatment gas and outlet openings for directing the treatment gas onto the fabric web, a pressure chamber directly adjacent the inlet openings for directing the treatment gas into the inlet openings of the nozzle boxes, the pressure chamber having bypass openings with substantially the given size and shape, each of the bypass openings being adjacent a respective one of the inlet openings forming a respective pair of openings, a return flow chamber receiving the treatment gas directly from the bypass opening and circulating the treatment gas to the pressure chamber, and common bypass flaps each being disposed at a respective one of the pair of openings for at least partially closing the openings of the respective pair

Abstract: A fluff filtering device within a convection drying and/or setting machine for treating a textile material web includes a device for circulating an air stream through the textile material web, a device for heating the air stream, an active filter screen with a frame of a given thickness disposed substantially horizontally in an operating position upstream of the heating device in the air stream for preventing fluff and other deposites from reaching the heating device, the active filter screen being substantially horizontally removable from the machine for cleaning, the active filter screen being upwardly movable into another position by a distance at least equal to the given thickness, and another screen slideable under the active filter screen into the operating position when the active filter screen is in the other position.

Abstract: Pin or clip chain for web tensioning machines, including a pin or clip chain link, a connection chain link, a connection pin holding the links together, the pin or clip chain link having a C-shaped box section with a side disposed in a given plane having an opening formed therein and longitudinal ends, and a bearing half shell being disposed in each of the longitudinal ends of the C-shaped box section, the bearing half shells having axes extended perpendicular to the plane of the side of the C-shaped box section, the connection pin being insertable in the opening formed in the C-shaped box section.

Abstract: The cylinder for guiding a web of textile material comprises at least one hollow space which is partly filled with a liquid heat carrier and can be evacuated. The pressure increase in the hollow space if the temperature is increased is to be limited to values below a multiple of calculated safety even though heat carriers with a steeply rising vapor pressure curve such as water are used. The solution consists in that only a quantity of heat carrier which can be evaporated completely in the volume of the hollow space already before a predetermined vapor pressure is reached, is contained in the hollow space.

Abstract: Method of controlling the continuous convective heat treatment of a textile fabric web, which includes continuously remotely monitoring the temperature of a web being transported over a path in a given direction, directing heated air toward the web, and measuring the amount of heat given off to the web, which is proportional to the temperature of the web, as a function of the difference between the temperature of the air impinging on the web and the temperature of the air reflected by the web.