Abstract: A golf training and practice apparatus has a television display and a plurality of sensors for sensing positions of a head of a golf club during the swing at a ball at a given location. A circuit responsive to the times of positioning of the head with respect to the sensors provides output signals to enable display on the television display of a graphic representation of the direction of the swing. The circuit also enables alphanumeric display of other parameters of the swing, and provides on the television display a fixed image of the angle of the face of the club at a time just before the ball reaches the ball position location. In order to also provide information relating to the golfer's stance, the apparatus includes sensors for indicating in alphanumeric characters the relative weight on each of the golfer's feet during various portions of the swing.

Abstract: An apparatus is provided for cooling and granulating strands of thermoplastic material. The apparatus has a chute located below nozzles for producing the strands, a cooling water inlet for supplying cooling water to the chute, a safety gate forming the lower end of the chute and positioned to receive the strands from the chute and pivotable away from the strands, a pair of draw-in feed advance rollers arranged downstream of the pivotal gate and a cutting roller arranged downstream of the draw-in rollers. A sensor is actuable by the pivotal movement of the safety gate to stop the draw-in rollers and the cutting roller in response to tilting of the gate.

Abstract: A continuously operating centrifuge for producing a high purity sugar or sugar syrup, has an acceleration bell or cone which acts as a preliminary separator, and a centrifugal basket, the lower portion of which acts as a washing stage. A damming ring is spaced from the upper edge of the basket to form with said upper edge a sugar exit gap. A discharge ring is arranged to cooperate with the damming ring. The discharge ring rotates with the basket, but about an axis extending at an angle relative to the rotational axis of the basket, whereby the actual sugar exit is confined to a predetermined zone along said sugar exit gap. A flow channel cooperates with said zone to receive the sugar without damage to the sugar crystals.

Abstract: A frequency multiplying system and method in which a time varying analog input signal is sampled and stored in a memory matrix at a predetermined rate. The signal thus stored is read out from the memory matrix at a different rate and reconstructed into a time varying analog signal. The storage rates and readout rates are controlled by a command signal generator including a master run-up generator run up at a first run-up rate and reset by the fundamental input frequency, the highest level at the output of the run-up generator being continually stored in a memory circuit. Slave run-up generators which cycle at frequencies corresponding to the storage and reading-out of the sampled information are reset upon coincidence of their levels with the level in the memory connected to the master run-up generator. The command signal generator may be in either digital or analog form employing either counters or integrators as run-up generators. The analog input signal may be processed by either digital or analog means.

Abstract: This hydraulic chucking head, especially for testing machines wherein the test sample must be held without play in the direction of load application, includes at least two test sample holding pistons movable along a common axis toward each other and toward a central axis through the chucking head. These pistons are hollow inside and movable in respective cylinders in the housing with a certain initial play. The piston walls or jackets are elastically yielding when the pressure inside the piston is increased, whereby the test sample is held and simultaneously said play is removed since the piston walls are pressed against the respective cylinder bores. Preferably a non-metallic coating is provided between the piston walls and the cylinder bores which coating acts as a sealing and reduces friction.

Abstract: An apparatus with a motor driven material removing tool for cutting, drilling, milling, sawing or grinding of concrete, stone or the like. The apparatus comprises three spaced apart operational groups, namely a working group, a vacuum source and control group, and a driving group. The groups are mobile and interconnectable and disconnectable by hoses and electrical cables. The working group comprises an interchangeable tool, such as a drill, drive motor means for driving and advancing the tool, and a tool holding device mounted on the outside of a rigid suction bell. The vacuum and control group includes vacuum producing means and electrical and fluid control units. The driving group has at least one hydraulic pressure pump with motor means for generating the hydraulic power for driving and advancing the tool.

Abstract: A semiconductor memory device comprising a composite structure of semiconductor-insulation layer-floating gate-insulation layer-control gate, in which a periphery of said floating gate is formed to extend up to and immediately above at least one of source and drain regions, such that both overlap each other through the insulation layer therebetween of silicon dioxide and of a thickness of 200 to 400A for more than 0.35 microns in length but not exceeding two times the distance between the source and drain regions.

Abstract: The present training device is a body of elastically yielding material, such as foam rubber preferably enveloped by a skin-like cover, for example, of rubber. A plurality of lumps of varying hardness, size and configuration are distributed in the foam rubber body in various locations adjacent to the skin-like envelope as well as deeper in the foam rubber body. The lumps may be made of plastics material and may be distinctly sensed by touching and pressing the outer envelope so as to familiarize a person performing the examination with the symptoms of actual breast cancer.

Abstract: In the present method the bulk material, especially coke, is maintained at a substantially constant level on a substantially horizontal support surface. The quenching liquid is permitted to flow uniformly through the bulk material for about 45 to 90 seconds until the vapor temperature is cooled down to at least 400.degree.C. The quantity of the quenching liquid which is uniformly distributed over the bulk material is selected so that it evaporates substantially completely, except for a small moisture content in the quenched material. The present bulk material quenching apparatus has a fireproof container resting on a supporting box, the top of which is a grid structure which simultaneously forms a permeable bottom for the quenching container which is provided with a tightly closing cover. A pipe conduit is connected to the cover which has a plurality of conduit outlet openings directed into the container. The box on which the container rests has at least one hinged side wall.

Abstract: In the present method a package is produced by forming a pouch in a first foil thereby stretching the material thus creating latent shrinking forces. The package is sealed using a second flat foil or a foil having a pouch extending to the opposite direction as the first pouch. The sealing is done inside an evacuated space and the heating of the first foil in order to shrink the pouch is done prior to or at the same time as the vacuum space is aerated.

Abstract: In a data communication system in which data communication is carried out between two or more data processing units and at least one device to be controlled thereby, each coupled via data station to a common data transmission path connected in a loop fashion, a conflict preventing circuit is provided between said device to be controlled and the associated data station, which conflict preventing circuit comprises a flip-flop to be set in response to its own device identifying data received from a particular communicating unit for keeping its own device enabled, an address register for storing a unit identifying data of said communicating unit, and an AND gate responsive to the device identifying data input and a busy signal from its own device for latching said flip-flop and said address register while the device is busy or communicating with said particular unit, thereby preventing said flip-flop and said address register from being affected from a data transmitted from a different unit while the device is co

Abstract: A rotor of a flow machine has a circumferentially extending slot with laterally projecting flanks. A plurality of rotor blades have roots radially locked in the circumferential slot. The rotor blades have pedestals substantially level with the surface of the rotor, and the blade roots or feet are circumferentially slidable in the circumferential slot. The circumferential slot has a blade stacking hole for inserting the blade roots into the slot. A locking device is positioned between the roots of a pair of blade elements. The locking device has a lock foot shaped to engage the sides of the adjacent blade roots. The sleeve is radially movable with the lock foot and rotatable about its own axis. The lock foot is not rotatable. The sleeve has a pair of outwardly extending tangs. A coil spring extends between the bottom of the circumferential slot and the sleeve to urge the sleeve and the lock foot radially outwardly.

Abstract: The present conduit or trough for a vibratory conveyor is constructed especially for transporting and/or treating bulk materials such a wood chips or the like. The trough or conduit is provided inside thereof with partition plates extending substantially across the transport direction. These partition plates take up part of the depth of the trough or conduit and may be arranged at an angle relative to the transport direction. Baffles may be arranged in the conduit or trough to extend away from the partition plates and substantially in the transport direction.

Abstract: This noise reducing device is arranged in the discharge chute of a material granulating apparatus in which a rapidly rotating knife cuts strips or strands of material into granules. In one embodiment of the device a wing wheel or impeller type of wheel is supported off-center for rotation in a portion of substantially cylindrical cross section of the chute. In another embodiment, angularly arranged plates are positioned substantially oppositely each other in the discharge chute to deflect the granular material so as to follow a zig-zag path.

Abstract: The present feed regulating conveyor bin has a lower conveyor for conveying fibrous materials toward a discharge device including a pair of inclined rows of spiked rollers. A stud link chain conveyor is provided above the lower conveyor in the upper portion of the bin housing. Flexible, smooth surfaced pieces are hinged to each of the stud links. The surface pieces have a width substantially equal to the width of the housing and a length greater than the distances between adjacent stud links of the chain. A platform is provided beneath the upper course of the stud link chain conveyor in the region of an inlet opening on the upper surface of the housing, to support the surface pieces in a horizontal position for receiving and transporting fibrous material.

Abstract: The present prefabricated structural element is especially adapted for the formation of balconies or other cantilevered structures. To this end a floor slab section or main section is joined to a balcony or cantilevered section by reinforcing steel elements which are connected to or in both sections and which bridge a gap between the sections. The gap width between the sections is preferably narrower than the top width of a supporting member, such as a wall or header, so that the gap may be filled with poured-in-place concrete once the element is properly placed in the desired position on top of the header or other supporting structure.

Abstract: The present spacer strips are used to form, for example, electrically heated mats, whereby the strips hold the elongated heating elements in a fixed position relative to each other. For this purpose the strips are provided with grooves into which the elements are inserted with a press-fit and preferably with an elastically yielding press-fit. The strips are further provided along the ends with coupling means for connecting several strips in series with each other. The present strips are formed by heating thermoplastic sheet material and stretching the sheet material over a grooving tool plate then the sheet is pressed or sucked into the grooves of the tool plate. After cooling and removal of the grooved sheet, the sheet is cut into strips whereby the cut extends substantially across the grooves.

Abstract: Apparatus for feeding workpieces through a machine employing a workpiece guide and at least one sensor for determining the dimensions of the workpiece. The workpiece guide applies pressure to the workpiece in accordance with the dimensions of the workpiece as determined by the sensor which includes one or more vertical or arcuate sensing members contacting the workpieces and moving in accordance with the dimensions thereof. Switches for controlling a driving motor of the workpiece guide are actuated by control cams responsive to the movements of the sensor.

Abstract: This circular saw blade has a center disk and circumferential teeth segments secured to the center disk, for example, by welding. The center disk has two rows of circumferentially spaced radially outwardly extending lands. The two rows of lands are preferably axially spaced from each other by a circumferential groove. The lands in each row are circumferentially spaced by gaps, whereby the lands in one row are angularly displaced relative to the lands in the other row so that the lands in one row face the gaps in the other row. The teeth segments are provided with the same type of lands and gaps, but facing radially inwardly, whereby the lands contacting each other on both sides of the disk may be electronically welded from one side of the disk. Worn out segments may be easily removed by a cutting or grinding tool having an outer diameter somewhat smaller than the distance from one outer wall of a gap to the outer wall of the next adjacent gap.

Abstract: A roadway for rapid transit railways comprises concrete or reinforced concrete piers supporting an all steel support or suspension structure for the support and/or suspension as well as guiding of the vehicles.