Abstract: A wall mounted knife holder which is operatively disposed on a vertical wall and which has an operative position generally parallel to the wall to which it is secured and an operative position in which it is tilted away from the wall whereby in its tilted position cutlery can be withdrawn from the holder without engaging overhead cabinetry.

Abstract: An inclinometer comprising a sector weight pivotally supported on a main body which may become inclined, the weight being relatively rotatable with respect to the main body and constantly hanging vertically due to gravity regardless of an inclination of the main body. A code part is provided on the weight, corresponding to a plurality of bits based on a predetermined code according to a relative rotary angle of the weight with respect to the main body, and a detecting part which becomes inclined together with the main body and becomes displaced with respect to the weight along each of the bits of the code part, produces a detection output based on the predetermined code according to the inclination angle of the main body.

Abstract: A chain saw having a saw chain and a chain bar, the saw chain comprising a plurality cutter links interconnected by connector links, the chain saw further having a sprocket or roller mounted for rotation in the plane of the bar adjacent the nose thereof, whereby the saw chain is guided around the nose of the chain bar, the sprocket or roller being shaped to receive driving tongues of the chain such that the cutter links of the chain are guided on a path of small radius than the path of movement of the connector links so that the depth of cut possible by the cutter links is reduced.

Abstract: A vernier device of the digital display type for a universal parallel ruler is disclosed comprising a slit protractor having slits arranged at the same visually readable protractor and a intervals as those intervals for the protractor graduations, the slit protractor being provided on one of a stationary portion and a rotatable portion of a scale operating head. A slit vernier protractor having slits at other intervals for vernier graduations is provided, the slit vernier protractor being provided on the other of the two portions of the operating head. An encoder consisting of photoconductive elements and corresponding light-emitting elements is provided with the slit protractor graduations and the slit vernier graduations interposed therebetween wherein a fine vernier angle is digitally displayed for reading on the basis of a signal representing a coincidence between a slit vernier graduation and a corresponding slit protractor graduation.

Abstract: A coupling apparatus for a length measuring instrument is disclosed. The length measuring instrument includes a scale, which defines a division, and a scanning unit. The scale is connected to a first object and the scanning unit is connected to a second object movable relative to the first. The scanning unit is coupled to the second object by a coupling arrangement which is rigid in the measuring direction, and the scanning unit is guided on an auxiliary guide which functions independently of the guidance for the second object. The coupling arrangement includes a pivot joint with two degrees of rotational freedom along axes perpendicular to the measuring direction for compensation of direction errors, and a linear guide having two degrees of translatory freedom oriented perpendicularly to the measuring direction for correcting for non-parallelism between the auxiliary guide of the scanning unit and the guide of the second object.

Abstract: In a linear scale type displacement measuring instrument capable of measuring a relative displacement between two workpieces to be measured from a relative movement between a main scale and an index scale, there are provided elastic member non-joining portions each having a pitch and a length to be determined by the material qualities of the main scale, an elongate case and elastic members to connect the main scale to the elongate case, and the length of the main scale, whereby a thermal stress acting on the main scale through the elastic members at the time of temperature change is reduced.

Abstract: A displacement measuring device wherein a measuring element slidably supported on a main frame is provided and the length or the like of a work to be measured is measured from a displacement value of said measuring element when the forward end of said measuring element is abutted against said work to be measured, characterized in that said device comprises: a feed member provided on said main frame in a manner to be able to reciprocate within a predetermined range; a vertically movable member interlocked with and driven by said feed member, to thereby vertically move said measuring element; and a load applying means for applying a load to said vertically movable member through the utilization of a relative movement between said feed member and said vertically movable member when said vertically movable member is braked after said measuring element has been abutted against said work to be measured.

Abstract: To measure the protrusion of a magnetic transducing head from a head-supporting and tape-guiding structure of the rotary drum-type, for example, a known gauge means is mounted on a base arranged to ameliorate excessive bearing pressure against the head and damage thereto and to the gauge apparatus.

Abstract: A ball bar gauge for evaluating the performance of coordinate measuring machines is disclosed. The gauge consists of a rigid bar having a magnetic chuck at each end. Each magnetic chuck consists of a permanent magnet and six magnetic pole pieces surrounded by a non-magnetic housing. The bar is used with two precision tooling balls which are placed in the chucks at each end of the rod. In each chuck three of the pole pieces are slightly longer than the other three pole pieces to provide a stable three-point contact seat for the associated ball.

Abstract: A liquid leveling device comprising a length of flexible transparent tube and a liquid control assembly at each end of the tube for preventing inadvertent leakage of liquid from the tube end but to maintain atmospheric communication with the liquid in the tube during use of the leveling device. The liquid control assembly includes a closed hollow body elongated along a central axis which is normally vertically oriented and having valve structure operatively associated with an air passage through the body. Contained within the body is a float means responsive to liquid flowing from the tube into the body which operates the valve structure and closes the air passage, preventing liquid leakage from the leveling device.

Abstract: A level having an I-shaped frame with a web flanges and a lateral opening in the web. A vial assembly is disposed in the lateral opening for viewing the bubble of the vial. A window opening is formed in at least one flange. Overlying the vial assembly is a transparent window element which is a part of a level vial support for viewing the bubble through the window opening and through the window element. The window element protects the vial from foreign material and from mechanical damage.

Abstract: The present invention relates to a method and apparatus for drying and handling sludge. Sludge is conveyed or transferred into a rotary drying chamber that may be housed within a structure such as a solar drying structure. The rotary drying chamber is provided with a perforated side wall structure. As the rotary drying chamber is rotated, the action of the sludge within the drying chamber results in the sludge being transferred from the drying chamber through the side wall structure thereof. In particular, as the sludge is dried, the movement of the sludge within the drying chamber and particularly the impact of the sludge against the internal side wall structure of the drying chamber causes the sludge to be forced outwardly through the perforated side wall structure of the drying chamber in a spaghetti-like fashion. That is, the dried sludge is emitted through the side wall portion of the drying chamber in the form of relatively small spaghetti-like portions.

Abstract: A fluid bed dryer comprises a pre-dryer of the back mixed type and a post-dryer of the plug flow-type. In the pre-dryer the main part of heat is transferred to the product being dried by means of heating panels arranged above the bed plate. A control bed is interposed between the pre-dryer and the post-dryer and includes one or more temperature sensors for sensing the temperature of the product in the control bed. Heat supply to the heating panels is controlled in response to the temperature sensed by the sensor or sensors in order to maintain the product temperature in the pre-dryer at the dew point and so as to ensure that the drying process proceeds within the region of constant drying rate, and that the product contains little or substantially no unbound moisture despite possible changes in product fed to the pre-dryer.

Abstract: Disclosed is a chamber which defines a constant gas environment for passing moving objects therethrough and which is in open communication with the outside. The chamber comprises an inlet zone, a central interior gas flow zone wherein the constant gas environment is maintained, and an outlet zone. All zones are in open communication and the inlet and outlet zones are in open communication with the environment outside of the chamber. The interior gas flow zone has ostensibly transverse laminar gas flow passing through it. The inlet and outlet zones are provided with a source of suction to create a pressure within each zone which is less than the ambient pressure outside of the chamber and wherein such pressures are substantially the same. The interface between the central flow zone and each of the inlet and outlet zones are held under conditions substantially preclusive of turbulent flow conditions.

Abstract: Disclosed are methods for drying coking coals to be charged in coke ovens utilizing a heating medium which recovers the sensible heat contained in the gas generated in the coke ovens as a heating source for drying coking coals to a desired moisture content. Chiefly based on the moisture of coking coals before drying, the flow rate of the heat medium to the coke dryer is controlled or a hot blast generated in a separate heating system is used for the drying.

Abstract: Improved method for internal heating of rotary driers consisting in the use of an unique snorkel (placed inside the rotary drum) made by two opposite snorkels connected by any type of joint. This unique snorkel extends from feed end to discharge end of the rotary drum along its axial line. Part of the heating gases of the fire box flow (equicurrent or countercurrent to the flow of the material being dried) inside the snorkel-controsnorkel system.

Abstract: A pocket ventilation roll baffle assembly adapted for use in drying a paper web is disclosed. The pocket ventilation roll includes a stationary tubular inner core roll, a tubular outer shell roll mounted for rotation in concentrically spaced relation about the inner core roll, and a device for supplying drying air within the inner core roll. The drying air flows longitudinally through the inner core roll and radially outwardly through an arcuate portion of longitudinally arranged perforations contained in the inner core roll and circumferential perforations contained in the outer shell roll. The pocket ventilation roll baffle assembly includes a baffle arrangement for adjusting the profile of the drying air flowing radially outwardly from the pocket ventilation roll.

Abstract: Two openwork drums (8A, 8B) are supported and rotated above an inclined, curved partition (9) having a smooth surface. Dry air is introduced beneath this partition and then flows along an upwardly directed channel (10) to an outlet (11) from which a deflector (12) directs it through the knitted fabric (13) to be dried and through the drums (8A, 8B) to a moist air outlet (5) disposed above the partition (9).

Abstract: A running shoe has a longitudinal slot in the sole extending from its back edge into the arch region and dividing the shoe sole into upper and lower segments. A spring wire in this slot decreases the velocity of the heel impact and then, as the runner's weight shifts forward onto the ball and toes of the foot, launches the runner into a comfortable stride and reduces stress.

Abstract: A cleat for sports shoes, especially football boots, comprising a socket situated in the outsole, a cleat body, a fastening attachment via which the cleat body is detachably connectible to the socket, and a supporting surface formed integrally with the cleat body thereat said supporting surface coming to lie in close contact against the outsole from below, with at least two circumferentially spaced downward pointing bearing surfaces formed at the fastening attachment which, upon insertion and after rotation of the fastening attachment through a predetermined angle of rotation come to lie in close contact against supporting surfaces in the socket under pressure, with the other supporting surface of the cleat body coming to lie in close contact against the outsole under a compression pressure, and with a means of safety against rotation provided between the fastening attachment and the socket.

Abstract: A labeling keeper including a protective sheet. The sheet is releasably attached to a backing sheet by adhesive and scored so that individual protector strips may be removed from the backing sheet. The protector strips are wrapped around an attachment member which holds the article to be identified such as a key. The attachment member is formed with an arm which holds the article. The protector strip when wrapped about the attachment member latches the arm so that the article cannot separate from the attachment member.

Abstract: The combination of an advertising display structure and a sporting facility in which a vertical support is anchored into the ground and supports a basketball hoop and backboard intermediate its ends and a billboard display at its upper end. The billboard includes display panels and a lighting arrangement positioned underneath a walkway with downwardly directed lighting fixtures arranged so as to illuminate the basketball play area beneath the billboard including the hoop and backboard.

Abstract: A recoil reducer can be fitted onto most styles of conventional shotguns with very simple modification. An elongated cylinder tube is slipped into the end of the gun's magazine tube, the rear portion of the cylinder tube being a reinforcing sleeve which lines the interior of the magazine tube for a distance to add strength to the magazine tube and stability to the cylinder tube, the forward end of the cylinder tube extending beyond the end of the magazine. A threaded coupling on the exterior of the cylinder tube is tightened onto the threaded end of the magazine tube to secure the cylinder tube in place.

Abstract: A modular cartridge loading board system comprised of a series of individual cartridge storage blocks, the blocks being mountable on a backing board in any matrix configuration desired by the user. Each cartridge storage block is comprised of a base plate and a series of axially parallel cartridge tubes extending outwardly from one surface of the plate, the tubes being oriented on a locus of points and being equal in number to the locus and number of chambers in the cylinder of a user's hand gun. Each tube is provided with a dual seat configuration interiorly thereof so as to seat either a round nose cartridge or a flat nose cartridge in substantially non-jiggling fashion when the cartridge is positioned nose down within the tube. When a storage block is filled with either round nose or flat nose cartridges, the cartridges are easily transferred to a cartridge loader and, subsequently, from the cartridge loader to the cylinder's chambers of the user's hand gun.

Abstract: A folding fishing net having a foldable rim and handle is conveniently and compactly carried folded in a holster at one's hip during stream fishing. When a fish is caught, the fist net, using only one hand is unfolded quickly when the fish is ready to be netted. During its quick one handed rotating to unfurl the netting and continued quick one handed sequential unfolding around two orthogonal axes, pivotal joints of the folding fish net at four locations are utilized. After the unfurling of the netting, during the first unfolding from the compacted non use position, a then longitudinally positioned divided handle, pivotally connected by a then horizontally arranged piano style hinge, and a central rim pivot joint on the folded rim, presently located closely opposite the handle, are both pivoted downwardly at the same time, through 180.degree. around a first then horizontally positioned rotational axis.

Abstract: An automatic hook setting device is disclosed for setting in a fish a hook connected to a fishing line in response to a pull exerted by the fish on the line. When a fish pulls on the fishing line to pivotally move the front end of the line support member downwardly a distance exceeding a predetermined displacement, a trip element is moved to a release position and in turn releases an elastic band tension member so as to engage a fixed stop and cause the front end of the line support to jerk upwardly, thereby setting the hook in the fish.

Abstract: A novel fish lure is provided herein. The lure is shaped in the form of a minnow having a main body of generally hydrodynamic shape including a head portion, with a nose projecting from the forward end thereof and a tail tip portion. The nose projecting from the head is provided with a plurality of holes (e.g., three or four) in the front portion thereof, through which a fish line is adapted to be threaded. The holes are situated along the symmetric longitudinal axis of the nose, from the top face thereof to the bottom face thereof. One hole imparts the most erratic action. A second hole imparts lessened erratic action, and the third hole imparts extremely vibrant but tight movement from the center. In all cases, the action of the plug is side-to-side at the same time as the plug oscillates on its longitudinal axis. The fish lure is one to which can be imparted erratic action in which the action is a simultaneous side-to-side and oscillation on its longitudinal axis.

Abstract: The invention is for an improved humane animal trap which reduces suffering to the trapped animal and reduces damage to the pelt. The trap includes a pair of circular jaws pivotally joined by strong helical springs. The trigger mechanism utilizes a lower lever member which extends into the stationary jaw and is biased against a bait holder/latch member by a flat spring. An upper lever member is engageable with the lower lever member at one end and at the other end supports the movable jaw when the trap is set. When an animal takes the bait the lever members are released from their constraints and the movable jaw moves rapidly under the bias of the main helical spring to trap the animal, just behind its head, between the trap jaws.

Abstract: The present device is an improved stand and trigger mechanism for a body gripping trap, having first and second rectangular frames which are pivotally mounted to each other for pivotal movement about a horizontal axis from a set position to a sprung position. Springs yieldably bias the frames from the set position to the sprung position. The rectangular frames each have a horizontal member, and the horizontal members of the two frames are in adjacent spaced relation to one another when the frames are in the set position. The horizontal members move away from one another as the frames move from the set position to the sprung position. The release mechanism comprises a trigger frame positioned between the horizontal members, and a pair of trigger arms mounted to the trigger frame for pivotal movement about a horizontal axis.

Abstract: A toy capable of combined rotational motion about an axle and translational motion in a vertical direction. Two parallel discs are connected through their centers and are maintained in a spaced-apart position, by an axle. The axle is non-circular in cross-section, and is supported by a tape which is inserted along the axle's longitudinal axis between the two axle-halves. The opposite end of the tape may be attached to a swivel which is in turn connected to a holding apparatus. In order to operate the toy, the end of the tape or the holding apparatus is held in the operator's hand and a down-and-up motion is imparted to the toy. The body of the yo-yo may alternatively be suspended from a string which is firmly anchored to the axle.

Abstract: A toy vehicle only slightly longer than a "penlight" battery, and with chassis less than twice the width of such a battery, is able (traction permitting) to climb any grade on which it will not tip over backward--grades up to about 40.degree.--and to negotiate a vertical step taller than its tire radius. The AA-battery-powered four-wheel-drive vehicle has a small electric motor with a double-ended shaft, and a symmetrical gearing system consisting of, at each end of the motor, a pinion fixed on the shaft, a spur gear driven by the pinion and driving a worm, and a worm gear keyed to a corresponding axle. The motor, pinions, spur gears and worms, and the upper portions of the worm gears, are aligned along one side wall inside the vehicle chassis, with the battery alongside them occupying the rest of the chassis. Traction and climbing characteristics are enhanced by twice-overscale tires, preferably of open foam, with highly pronounced treads.

Abstract: A grinding device for the reprofiling of a rail of a railway track, comprises at least one grinding unit having a conical grinding wheel rotatably driven by a motor. The motor is secured to a bracket connecting it rigidly to the chamber of a jack whose piston is secured to a rod fixed on the carriage of a railroad vehicle. The jack makes it possible to cause feeding movement of the grinding wheel along a direction parallel to the side profile of the grinding wheel and defining the cutting depth and compensating for wearing away of the grinding wheel. This feeding movement of the grinding wheel takes place along a direction forming an angle with the axis of rotation of the conical grinding wheel, this angle being about half the summit angle of the conical grinding wheel.

Abstract: The axial position of the fiber is controlled in three grinding or polishing stages. The fiber (72) is first ground flush with the guide (120) in which it is housed. The fiber end and face of the guide are then ground flat and square. The fiber is thereafter polished to its optical quality and required length. The tool for accomplishing these steps includes a retainer (74) which holds the fiber optic ferrule (70) and its optical fiber (72) therein at a tool surface (16). This tool surface is protected by a guard (18) from being too rapidly ground away while the fiber and fiber/guide combination are ground flush with the surface. The surface and its retailed guide and fiber are then moved to an unprotected position (FIG. 3) so that the surface and the fiber within its ferrule may be polished on a suitable polishing wheel or similar device.

Abstract: A grinding system is controlled by (1) determining the exact nature of a power function relationship between (a) the rate at which material is removed from one of the surfaces at a rubbing interface and (b) the feed rate at which the rubbing surfaces are fed into each other, for a particular grinding operation, i.e., a particular grinding wheel and other specified conditions affecting the rate of material removal at the rubbing interface; and (2) controlling, measuring or setting the material removal rate or the feed rate in such a grinding operation in accordance with said power function relationship.

Abstract: A window sill assembly for protecting and covering an existing window sill at the base of a window. Two elongated members, each provided with a slideway, are attached to the window sill in a parallel and spaced apart relationship, one member on either side of the sill and extending away therefrom. A rectangular plate is slid, in a manner similar to a drawer, along the slideways until the rear portion of the cover encounters the wall below the window. The cover is then fastened to the sill, for example by being screwed thereto. Alternately, a flat rigid strip is rigidly fastened to the sill under the cover and is provided with a prong extending therefrom. A lip extending from the cover engages the prong and interlocks the plate with the strip.

Abstract: The invention relates to a glass fibre-reinforced, extruded plastics material hollow profiled strip for the production of window frames, glass doors, or the like. In order to be able to butt-weld profiled strips of this type together when producing the frame and to ensure a reliable bonding between the glass fibres and the plastics material of the profiled strips a synthetic resin is used as the bonding agent which causes this bonding, which synthetic resin has thermoplastic or thermoelastic properties and thus enables the glass fibres to be deflected during butt-welding and pressing together of the ends of the frame pieces.

Abstract: A built-up insulated roof construction is provided that includes panels of closed-cell thermal insulation foam disposed over a water-impermeable barrier layer. A protective layer is applied over the panels of thermal insulation foam. The upper face of the insulation panels contains grooves or channels to aid in the evaporation of moisture through the insulation panels to the outside atmosphere.

Abstract: Vertical boards or tank segments are compressed by outer horizontal bands that cause the vertical edges of these tank segments to press together. Each tank segment has a web and edge structures that are thicker than the web measured in a radial direction in the finished tank. The compression of the horizontal bands causes these edge sections to exert a bending movement on the web, bending the web outwardly until it contacts the outer horizontal bands. One size of tank segment, therefore, serves for a large number of different diameters of cylindrical tank. The webs are formed flat, and the thickened edges are preferably tongue-and-groove configuration.

Abstract: A basketweave-type suspension ceiling grid system is disclosed wherein the grid members are generally U-shaped providing a relatively wide face portion, oppositely extending panel support flanges, and a pair of spaced and parallel webs. The system provides a connector system in which the female part of the connector system is provided by a longitudinally extending slot substantially adjacent to the panel support flanges. Male end connector parts are proportioned to fit through the slots and lock therein to the members of the grid. The male connector part provides a generally T-shaped lanced projection which extends rearwardly and upwardly from a hinge line and is formed with raised wing portions providing stop surfaces for engaging the remote side of an associated web. A dimple formed intermediate the rings and rearwardly therefrom provides a stop surface limiting the insertion movement of the connector.

Abstract: An end stile apparatus and method for an overhead door section. The end stile is formed from a rectangle of sheet metal folded longitudinally into a modified J configuration in cross section. Mounting elements in the form of tabs and clips are prepared from a side of the end stile and serve as part of the anchoring system for mounting a panel to the end stile.

Abstract: A magnetic clutch is provided for transmitting and limiting the torque in screw-on heads for screw closures. The clutch has a high number of poles (at least eight and preferably twelve poles) and the spacing between the clutch magnets, is at least six times the total axial tolerances between the clutch magnets.

Abstract: In an apparatus and method for flattening a sealed pouch containing a solid flowable product, the pouch is inclined upwardly with the end thereof having a disproportionately larger amount of product located uppermost. A bucket device supports the pouch and opposes a plate, resiliently exerting a pressure against the pouch, creating an air pocket at the lower most end of the pouch, after which the product flows downwardly to that end. A car assembly movable along a conveyor has a lower part mounted on the conveyor and an upper part pivotally connected to the lower part which is raised by a cam, and which includes the bucket device.

Abstract: A case loading apparatus comprises a first conveyor for moving a plurality of articles therealong and a second conveyor for moving open-ended cases therealong. The first conveyor deposits a stacked plurality of the articles on a platen, mounted on an elevator, for movement to a lowered position whereat the articles are transferred to a receptacle. The receptacle is moved adjacent to one of the cases and is inserted therein.

Abstract: This specification discloses a method for preparing a plurality of large blocks of glass for shipment on a transportable device (10). The method includes providing an "A" frame carrier (18) on the transportable device. A plurality of layers of shrinkable film (32) and (34) are provided which lie over and on both sides of the "A" frame carrier. A block of glass is loaded on each side of the "A" frame carrier and wrapped in the layer (34) of shrinkable film in a manner that each of the first glass blocks is substantially enclosed in the shrinkable film. The shrinkable film is shrunk about the enclosed block of glass thereby to form a sealed pouch pack (36) about the first loaded block of glass. At least a second block of glass is loaded on each side of the "A" frame carrier in association with the previously loaded blocks of glass.

Abstract: In a bundling apparatus, a carrier of a transfer mechanism is moved by a motor of a first driving mechanism from a carrier home position to a carrier stop position after a stack of sheets are set on the carrier and then moved from the carrier stop position to the carrier home position. On the other hand, a catcher of a winding mechanism is moved along a line of movement including a catcher home position below the sheets on the carrier and a catcher intermediate position above the sheets. The line of movement lies between the carrier home position and the carrier stop position. The catcher is moved by the second driving mechanism from the catcher home position to the catcher intermediate position before the carrier moved from the carrier home position toward the carrier stop position by the first driving mechanism crosses the line of the movement, and is moved from the catcher intermediate position to the catcher home position after the carrier crosses the line of movement.

Abstract: A bitting rig apparatus (10) for training horses is disclosed. A preferred embodiment of the bitting rig apparatus (10) includes an elongated, flexible member (12), the member (12) being releasably attached at its ends to a saddle (14) on a horse on opposite sides of the horse. A ring-like member (18) is slideably positioned on the elongated member (12) for slideable movement therealong. A second elongated member (20) extends through the ring-like member, the ends of the second member (20) being releasably attached to shanks (24) at opposite ends of a bit (26) positioned in the horse's mouth.

Abstract: A grain pickup is designed for the picking up of windrowed grain for supply to a combine. One or more belts pass around two spaced parallel rollers which guide and propel the belt or belts. The rollers are supported and driven at either end by conventional equipment and in the center are supported by roller assemblies which are forced apart from one another and into the rollers so as to provide roller support and guidance. The roller assemblies can be loaded from the outside frame of the machine allowing adjustment of the pre-load on the rollers.

Abstract: Method for producing a fiber spun yarn of the type in which parallelized elementary fibers are joined to a textile core, subjected to a false twist, said fibers being projected on the core, upstream of the false twist spindle.According to the invention, in the fibers projection zone, the core is guided into a channel with an open face which is situated in facing relation to the elementary fibers projection zone and the surface of which is subjected to a flow of fluid tending to exert a pulling force on the end of the fibers.

Abstract: Make-ready device for making a first thread end ready for connection to a second thread end in a thread joining device, the make-ready device having a hollow body open at opposite ends thereof for receiving the first thread therein and traversible by a gas flow, includes at least one compressed gas guiding device for guiding the gas flow so as to at least partly stretch, parallelize and clean the fibers of the first thread in the hollow body, the compressed gas guiding device serving to control at least one of the nature and the direction of the compressed gas flow to the first thread end inside the hollow body, the compressed gas guiding device having a branch line connected to a compressed gas supply line and being continuously adjustably tappable with respect to at least the one of the nature and the direction of the compressed gas flow.

Abstract: Spinning rotor for an open-end spinning machine including a rotational body having a hollow interior, the body being formed of steel and having thereon a surface layer formed of at least one of the compounds iron carbide, iron boride, iron silicide and iron nitride at least at locations of the hollow interior thereof at which the spinning rotor comes into contact with spinning fibers being spun into a thread, the steel body with the surface layer thereon being tempered and having increased ductility at high elastic limits, and a method of manufacturing a spinning rotor.