Abstract: The invention refers to a method for etching a semiconductor surface, wherein the surface is subject to a wet treatment in several process steps.

Abstract: The invention relates to a one-part, fire resistant ceramic composite structure consisting of at least two adjacent layers. The substantial mass portion of the layers consists of an identical, fire-resistant ceramic material, and the remaining mass portion is selected in relation to each layer in such a manner that at least one layer couples inductively subject to the influence of a magnetic field, whereas at least one other layer does not couple subject to the influence of said electromagnetic field. However, all layers have the same thermal coefficient of expansion.

Abstract: An apparatus for grinding and polishing without visible flaws a variety of different size and shape full-lead crystal workpieces. A conveyor supports the workpieces and runs through the apparatus housing. A workpiece calibrator is located proximate the entrance end of the housing. A plurality of grinders having an abrasive grinding surface within a range of coarseness are located downline of the calibrator. A plurality of polishers are located downline of the grinders. Control means raises and lowers the calibrator, grinders and polishers relative to the belt conveyor and the unfinished surface of the workpiece supported thereon.A method of automatically making a finished full-lead crystal ornament using an automated machine having a housing, conveyor, a plurality of motor-driven grinding heads, and a plurality of motor-driven polishing heads.

Abstract: A conveying device for thin disk-like articles (60), characterized by the llowing features: a support (10) having a plain surface (12), in the support (10) there is formed at least one gas channel (20) which channel, in running towards the plain surface in outwardly slanting manner, terminates at one of its ends in at least one gas outlet opening in the plain surface (12), the at least one gas channel being connectable to a gas supply pipe (28) at its other end, wherein at least three guiding arms (30) are disposed adjacent the at least one gas outlet opening(s) outside the at least one gas outlet opening and wherein the at least three guiding arms project beyond the plain surface (12) of the support (10) and are adjustable radially with respect to the plain surface (12).

Abstract: A tool and method for aligning multiple shaft segments which are coupled together to form a single rotating shaft. The device comprises a cylindrical bar having an annular, axially-extending outer surface, rotating means on a first end of the bar, and engaging/disengaging means fixed on the second end of the bar. The bar is temporarily inserted through a bolt hole in the collar of the first shaft and partially through an aligned hole in an adjacent coupling of the second shaft until at least a portion of the engaging/disengaging means is positioned within the bolt hole of the second collar. The engaging/disengaging means engages the second collar so that a turning force from the first shaft is transmitted to the second shaft. The engaging/disengaging means also disengages from the second collar by rotating the bar after rotation of the shaft is ceased.

Abstract: A method and apparatus for decoding locks having a guide member, an alignment member, a reader, and a recording medium, which a guide member is inserted into a lock to open the lock to receive an alignment member which aligns the tumbler members of a lock, thereby permitting a reader to be inserted into the lock, and withdrawn therefrom to cause a displacement of a pivotally connected reader arm which records an image of the lock profile on a recording medium.

Abstract: A testing system for the automatic acquisition, scaling, conditioning, calculating, recording and displaying of various channels of engine/dynamometer generated electrical signals for a gas powered turbine engine in the form of an animated user display graphic, which simultaneously presents a series of condition graphics for display on a monitor to provide an operator with a visual inspection of engine operations.

Abstract: The invention concerns a gas purging bottom for metallurgical vessels, the gas purging bottom comprising a monolithic refractory ceramic lining having channels formed therein by chemical or physical processes. At their ends associated with an adjacent vessel wall, the channels are designed for direct or indirect fluid connection to a gas supply pipe. At their other ends the channels lead into the corresponding outer layer of the refractory ceramic lining.

Abstract: A package for a trash bag rod which is flexible and resilient for opening a trash bag and for forming a hoop shape for holding the trash bag open while it is being filled with fallen leaves, lawn clippings, and other trash, comprises a trash bag rod which is normally straight but which is wound into a coil that springs back toward straight position when released from the coil, an enclosure holding the trash bag rod in coiled position with at least one end portion of the rod being held in straight position to form a straight end portion of the rod within the enclosure, whereby after the coiled rod is released from the enclosure the straight end portion is more easily threaded through a perimeter portion of the open end of a trash bag than a rod with a curved end portion. The method includes preforming a series of openings around the top perimeter portion of the trash bag.

Abstract: A continuous furnace for baking ceramic molded parts has a heating area (14), a baking area (16) and a cooling area (18). At least one smoke gas duct (22) extends from the heating area (14) into a combustion chamber (24) and at least one hot air duct (28) leads back from the combustion chamber (24) to the heating area (14). Hot air loaded with binder fractions is extracted from the heating area at one or several spots. The combustion gases are then led into a combustion chamber where they are burned, so that a largely purified hot air may then be led back to the heating area.

Abstract: An apparatus for handling and transporting plate like substrates comprises a first flat carrier member and a second flat carrier member, the second flat carrier member being arranged at least along one side wall of the first carrier member, the first and second carrier members being arranged horizontally and provided with at least four vertically extending guiding members, arranged at spaced locations to each other in two sets of at least two guiding members each, whereby each carrier member comprises at least one guiding member of each set of guiding members, the first and second carrier member being mounted on a robot and moveable relative to each other in a longitudinal direction.

Abstract: A non-metallic wear plate assembly for railroad car couplers comprises a wear plate of ultra-high molecular weight polyethylene having an upper surface with side edges and a middle portion therebetween, the upper surface of the wear plate sloping downwardly from the side edges to the middle portion, and a number of counter-bored holes in the wear plate with a larger diameter and a smaller diameter with the larger diameter of the counter-bored holes facing up, the wear plate being mounted on a steel filler plate by weld washers which are positioned in the holes and are welded to the filler plate, with optional weld washer plugs being positioned in the holes above the weld washers and flush with the upper surface of the wear plate. A method of using the non-metallic wear plate for railroad car couplers to center a coupler and protect it against wear.

Abstract: A thrust bearing for use with a shaft having a collar mounted thereon, comprises a base ring, a series of thrust bearing shoes positioned on the base ring, each shoe having a leading edge connected to a trailing edge by an inner diameter edge and an outer diameter edge, each thrust bearing shoe having a working face with a bearing liner on its surface, a shoe pivot member on each shoe allowing the shoe to pivot in any direction, an oil distribution groove formed in the working face of each shoe near the leading edge of each shoe and extending radially for substantially the entire distance between the inner and outer diameter edges of each shoe, each oil distribution groove having an inner end and an outer end connected by a leading edge and a trailing edge, an oil feed line leading to each oil distribution groove for feeding oil to each oil distribution groove, and a recess formed in the working face of each shoe commencing at the trailing edge of the oil distribution groove and extending rearwardly therefrom

Abstract: A bag suitable for use in microwave cooking is constructed of an elongated tube of flexible material closed at one end by means of a cold seal closure and having a heat seal adhesive deposit applied to the other end thereof for use in closing the bag after filling thereof; and methods of making the same are described, including the making of a roll from which said bags can be made.

Abstract: The invention concerns a clamping device for sheet products and an associated holding device.

Abstract: For use with a fireplace, a heat exchanger mounted across the top portion of the fireplace with the heat exchanger comprising a heat exchanger core with four identical extruded core sections connected together around an inner spin chamber for the passage of combustion gases and surrounded by an outer spin chamber for the passage of combustion gases, with each core section having a center core passageway for the passage of room air and the heating of the room air by the heat from the combustion gases being transferred to the room air through the heat exchanger cores, and tortuous passageways between the core sections from the outer spin chamber to the inner spin chamber to increase the area of contact by the hot combustion gases to the core sections and to increase the dwell time of the combustion gases in the core to increase the amount of heat transferred to the combustion gases to the room air in the core sections.

Abstract: A non-toxic edible enteric film coating dry powder composition for use in making an aqueous enteric coating suspension which may be used in coating pharmaceutical tablets and the like comprises an enteric film forming polymer, a detackifier, a viscosity modifier, and an alkalizing/anti-coagulating agent. Advantageously, the inventive dry powder compositions may include a solid plasticizer, a lubricant, an anti-caking agent, a liquid plasticizer, and a pigment.

Abstract: A round label for providing identifying indicia on a bottle having a bottom wall having a flat, annular edge portion and a concave depression in the middle of the annular edge portion. The label has an attachment for attaching the label in the concave depression of the bottle. The attachment includes a ring-shaped edge portion having a layer of adhesive on at least one side to affix the label to the side walls of the concave depression, and a circular interior labeling portion which is surrounded by the ring-shaped edge portion and which traverses the concave depression. A plurality of notches are provided in the edge portion of the label. The notches extend radially-inwardly towards the center of the label. The edge portion of the label is bent transverses to the labeling portion of the label and fastened to the side walls in the concave depression such that the labeling surface traverses the concave depression and is spaced apart from the flat annular edge portion of the bottom wall of the bottle.

Abstract: A non-toxic edible enteric film coating dry powder composition for use in making an aqueous enteric coating suspension which may be used in coating pharmaceutical tablets and the like comprises an enteric film forming polymer, a detackifier, a viscosity modifier, and an alkalizing/anti-coagulating agent. Advantageously, the inventive dry powder compositions may include a solid plasticizer, a lubricant, an anti-caking agent, a liquid plasticizer, and a pigment.

Abstract: An adjustable golf club having means for adjusting the balance of the club and means for adjusting the alignment angle of the club. A club head is attached to the connection end of the shaft by connecting means at a connection point along the heel-to-toe axis and at a line-of-play alignment angle and a heel-to-toe alignment angle. The connecting means includes a slide fixed to the connection end of the shaft and a socket in the top portion of the club head. The balance of the club can be adjusted by linearly moving the slide along the heel-to-toe axis in the socket. The line-of-play alignment angle of the shaft can be adjusted by rotatably moving the slide in the socket. After the club is adjusted, the slide is secured in the socket by locking means to prevent the club from deviating from the desired adjusted configuration during play. A method of putting a golf ball with the above provided adjustable putter. The adjustable putter is provided to the golfer.