Abstract: A wafer support for supporting a semiconductor wafer during a process including varied temperature. The wafer support includes a body having a top surface adapted to receive the semiconductor wafer so a portion of the top surface supports the wafer. The top surface has a recessed area including an inclined surface rising from a bottom of the recessed area. The inclined surface has an incline angle that is no more than about ten degrees.

Abstract: A charging device for a tube reactor has a plurality of metering chambers which can be filled with filling material, for example a catalytically coated carrier material. Each metering chamber is adjoined by a drop tube or some other filling device via which a tube of the filling device can be filled in each case. The metering chambers can each be filled via antechambers which are combined into one replaceable antechamber unit.

Abstract: The device relates to a device for leveling the coal filled in the retort of a coke oven, comprising a leveler bar (2) connected with a leveler bar drive (1) that can be moved into and out of the retort (4) through a leveling opening (3), and performs a leveling movement back and forth in the retort (4). According to the invention, the leveler bar (2) has a rake blade (5) on its front end with a width that can be adjusted by an operating device (6) arranged in the leveler bar (2).

Abstract: A device for feeding and distributing loose material to rotary platforms, particularly for rotary-hearth furnaces, includes a material feed device, a material transfer device and a material gravity-pour duct. The device further includes a static device for the differentiated distribution of the material. The distribution front of the gravity-pour duct has an essentially curvilinear profile, the derivative of this curve being an increasing linear function of the radius of the rotary platform in the portion lying between the center of the platform and its perimeter.

Abstract: An apparatus for charging a feed material onto a rotating hearth of a rotary hearth furnace, the rotary hearth furnace including refractory lined inner and outer walls and having a refractory roof supported thereon, the apparatus comprising a table mounted above the rotating hearth and capable of receiving feed material from outside of the rotary hearth furnace, the table extends transversely across the rotating hearth and having a first end including a distribution member, a second end including a plurality of discharge slots, and an intermediate leveling plow; wherein feed material free falls over said distribution member and is distributed across the width of the table and then adjusted to a uniform depth such that as the rotating hearth passes under the stationary table a curtain of feed material is loaded onto the hearth.

Abstract: A catalyst loading system for utilizing catalyst from a bulk supply located adjacent but not on the upper tube sheet of a catalytic reactor and for mechanized measuring of multiple identical quantities of catalyst and for mechanized loading of catalyst pellets into the reaction tubes of the reactor to achieve even drop rate, compaction and outage of the reaction tubes. A pair of electronic vibrators are mounted to the cart framework and provide for support and vibratory movement of a vibratory tray having a catalyst feed hopper adapted to feed catalyst pellets to a plurality of generally parallel catalyst transfer troughs along which catalyst pellets are moved by vibration of the vibratory tray to a plurality of drop tubes. A compartmented hopper is fixed to the vibratory tray and controllably feeds catalyst pellets into respective catalyst transfer troughs.

Abstract: The leveller bar for leveling a coal heap formed during a charging process under charging holes of an oven compartment of a coke oven block has two vertical plates connected with each other and spaced parallel from each other a distance (a) according to a width of the oven compartment and spaced from each other by spacing rods. Each deflecting and entraining device (2) does not extend over the entire distance a between the vertical plates (1) and the coal deflecting and entraining devices (2) extend alternately successively from one or the other of the plates (1) toward the opposite plate. Advantageously they can be equal-sided angular sections.

Abstract: A leveler bar for a coke oven is controlled in its travel toward and away from the coke side of the oven by semi-automatic means to move the leveler bar during a "cycle" mode through half strokes and during the "finish" mode it performs four "full" strokes of which a full stroke can mean a 3/4 distance of full travel across the oven. Electrical circuitry which modifies or adds to prior art circuitry to accomplish this leveler bar movement is included herein.

Abstract: A coal-leveling apparatus includes a leveling rod supported by a pressing machine for movement through a leveling opening into a mushroom-shaped gas-collecting space to level the coal charged in the coking chamber of a coke oven. The leveling rod includes a head element that carries two support members that can move on pivot levers between an operative position wherein the support members are extended from the head element for support by upwardly-inclined wall surfaces in the mushroom-shaped gas-collecting space. In the inoperative position, the support members are retracted toward both sides of the head element. An actuating rod extends through the leveling rod to the head element. In one embodiment, the actuating rod can be moved in opposite directions of its length. An end of each of the first pivot levers is connected to the actuating rod and the opposite ends of the first levers are connected to second pivot levers.

Abstract: A carbonizing chamber is charged with powdered coal, and then the powdered coal is loaded down with a predetermined load from above with vibration to control the packing density of the powdered coal by means either of a pressing and vibrating member provided on a leveling beam body or a beam body arranged to act also as a pressing and vibrating member.

Abstract: An apparatus for sealing the air gap between a leveler bar and the chuck door opening in a coke oven having spring loaded rollers as side and top seals between the leveler bar and a surrounding smoke seal box. The smoke seal box is pressed into a sealing engagement with the frame surrounding the chuck door opening via a spring plate assembly. Also a swing gate assembly provides a coal seal between the bottom of the smoke seal and the bottom of the leveler bar.

Abstract: An elongated boom for supporting a tool for conditioning metal or the like within a high temperature furnace. The boom has internal passageway for directing cooling air therethrough so as to reduce the potentially dangerous effects of high temperatures upon the thermally exposed sections of the boom. The boom is supported at one end in a carriage that is arranged to move back and forth within a horizontally aligned gantry to enable a conditioning tool supported in the opposite end of the boom to be readily moved in and out of the furnace. A blower for pumping ambient air into the boom is mounted directly upon the carriage adjacent to the boom eliminating the need for extensive air handling hoses and the like.

Abstract: Apparatus for supporting an extendable, elongated tool-handling boom within a gantry. The back end of the boom is rotatably supported in a carriage that is movably mounted in a gantry while the main body of the boom forward of the carriage is seated upon a rest carried within a cradle which is also movably mounted within the gantry whereby the relative position of the two boom support points can be altered as the boom is extended and retracted within the gantry. The boom is able to be lifted from the cradle seat in the event it becomes hung-up upon an obstacle while in use thereby preventing the boom from being damaged. A shock absorber is operably connected between the cradle and the boom which serves to return the boom to the cradle seat at a controlled rate.

Abstract: Apparatus for manipulating a tool for conditioning material within a high temperature furnace. The tool is secured in one end of an air-cooled boom while the other end of the boom is connected to a carriage that is arranged to move reciprocally within a horizontally-aligned gantry. The gantry, in turn, is adjustably supported upon a chassis mounted turntable that is capable of being driven over the ground by means of a pair of endless treads. The gantry is connected to the turntable by hydraulic lifters which independently raise or lower the gantry at two separate locations along its length to impart an expanded degree of maneuverability to the tool. Shock absorber means are also operatively associated with the boom to prevent the boom structure from being damaged in the event the tool becomes hung up in the furnace.