Abstract: An electrical arc welding device for two workpieces to be welded together along an annular weld seam, e.g. ends of pipe sections, and in which a magnet arrangement surrounds the welding-seam path. According to the invention, a magnetizable ring is formed by the inwardly extending poles of a plurality of magnets having flat cores and surrounded by coils for electromagnetically energizing the cores.

Abstract: A method of producing soil conditioners from waste material, and of utilizing the internal energy thereof, while reducing the volume of the waste material at the same time, is disclosed in which initially compacts of a refuse-sludge mixture are subjected to intense rotting whereby the water content thereof is reduced from an initial value of about 50 to 60 percent to about 30 percent, preferably 20 percent, and whereby the compacts become dried and storable. The dried and storable compacts are ground or screened, or both, with the screened out fine fraction being directly usable as a soil conditioner, and then the ground or screened, or both, compacts are thermally treated by one of low temperature carbonization and combustion.

Abstract: A method of positioning a first part such as a rotatable shaft relative to a second part, such as a tubular receiving part comprises placing a defined surface area on one of the parts which is at an elevation distinct from the remaining area of this part surface, mounting a dial gauge having a sensing pin which is displaceable inwardly and outwardly to change the reading of the dial on the other of the parts, and engaging the pin on the surface of the first part while moving the parts relatively so that the needle moves over the surface of the first part, and recording the maximum deflection of the dial as a desired point of adjustment.

Abstract: An apparatus for locking a weapon support in either a zero position or any weapon-firing position relative to the turret of an armored vehicle. The apparatus includes a bore formed in the weapon support, a casing provided in the turret, and a bolt which engages the bore and protrudes through the casing into the interior of the armored vehicle. The bolt is spring-biased axially into engagement with the bore and the casing includes a gate. The bolt includes an index pin which engages the gate, the gate having first, second, and third defined positions for the index pin for latching and unlatching the weapon support.

Abstract: A friction-welding machine of the type in which a cylinder arrangement applies pressure to urge two workpieces together upon the rotation of one of the workpieces against the other to prepare the interface for bonding. The cylinder arrangement which applies the welding pressure comprises a main cylinder whose piston acts upon the workpiece through a head formed with an auxiliary cylinder and piston arrangement greatly increasing the working range of the cylinder arrangement.

Abstract: A device for depositing a cable into a receiving container or can, comprises, a rotary distributor including a rotatable cable distributing tube extending obliquely downwardly in the distributor which has an inlet into which the cable is directed adjacent the center of rotation and a cable discharge adjacent its bottom disposed at a location spaced radially outwardly of the cable inlet. The cable receiver has a side with a curved periphery which is located adjacent the tube in a position to receive cable which issues out of the outlet of the tube and engages around the surface of the receiver. The receiver is mounted for rotation relative to the distributor so that there is a driving rotation of one relative to the other to effect the deposit of the coils of the cable around the cable receiver. The receiver can is disposed below the receiver to push the coils of cable as they are deposited on the receiver downwardly along the surface of the receiver and then off of the surface into the can.

Abstract: An armored vehicle having a full-circle swivelable turret and a weapon which outside the turret is elevationally aimable on a weapon support connected to the turret includes a mechanism for selectively securing, releasing, and partially releasing the weapon support exclusively from the turret interior and for triggering a signal when the weapon support is secured. When the weapon support is secured the weapon is maintained in a fixed position, and when the weapon support is released the weapon can be moved into any firing position. The mechanism allows personnel to remain inside the armored protection when securing and releasing the weapon support.

Abstract: A pair of workpieces are welded together by passing between them an arc which is guided by a magnetic field to rotate on the workpieces. Immediately after striking of the arc the field strength of the magnetic field is relatively great and a relatively great current is similarly passed through the arc. During a subsequent main phase, before fusing of the surfaces to be welded, the field strength and the current of the arc are reduced to a fraction of their values for even heating of the surfaces to be welded together. Finally during a terminal phase the current of the arc and the field strength are again raised to a higher level to completely fuse the two surfaces which can then be welded together once the arc is interrupted.

Abstract: A device for depositing a cable into a receiving container or can, comprises, a rotary distributor including a rotatable cable distributing tube extending obliquely downwardly in the distributor which has an inlet into which the cable is directed adjacent the center of rotation and a cable discharge adjacent its bottom disposed at a location spaced radially outwardly of the cable inlet. The cable receiver has a side with a curved periphery which is located adjacent the tube in a position to receive cable which issues out of the outlet of the tube and engages around the surface of the receiver. The receiver is mounted for rotation relative to the distributor so that there is a driving rotation of one relative to the other to effect the deposit of the coils of the cable around the cable receiver. The receiver can is disposed below the receiver to push the coils of cable as they are deposited on the receiver downwardly along the surface of the receiver and then off of the surface into the can.

Abstract: In a leverage system, a four-member articulated linkage pivoted at one extremity on a support, one linkage member being rigid with a load arm carrying a gripper assembly for holding a tool, is connected via a pair of force-transferring levers to a pneumatic cylinder for counterbalancing gravitational moments. One lever is articulated at one end to a pivot of the four-member linkage and at another end in a toggle link to the piston of the cylinder, while the other lever is pivotally connected at one end to the piston and the toggle lever and at an opposite end to an arm of a bell crank forming a linkage member.

Abstract: A device for the intermittent conveyance of receptacles for receiving packing or filling material in an intermittently operating machine, particularly a tube filling and closing machine, comprising, first and second parallel spaced apart linear guideways facing at angles to each other and a plurality of sets, each adapted for receiving one of the receptacles, slidably mounted on the first and second guideways. A driving unit is provided for moving the cassettes linearly along the guideways and for tilting and displacing the cassettes from one guideway to the other when each cassette reaches the end of the one guideway. The cassettes thus execute a cyclic movement along the first and second guideways.

Abstract: A rotary drum storage tank for receiving and conveying garbage includes a rear cover for the tank with a helical baffle protruding into the storage tank and which acts as a pressing screw which pushes the material which is dumped into the tank backwardly into the rear thereof. The baffle acts in conjunction with a plurality of strikers arranged on the inner wall of the rotary drum storage tank and which rotate with the tank to force the material into the storage space. The drum is mounted on annular ball bearings which are secured on a bolt which is mounted on a box girder or closed frame girder having a central opening therethrough which accommodates the bearings.

Abstract: A device for welding two metallic hollow bodies together in end-to-end connection by means of an electric arc moved by the effect of an external magnetic field along the welding joint, comprises, clamping means engaged with the bodies to clamp them in end-to-end relationship with the respective ends to be joined disposed closely adjacent. In addition, a magnetic coil is disposed within at least one of the bodies or it is advantageously located with a pole piece disposed in the gap between the two bodies and overlapping each of the bodies so as to produce a magnetic field in the vicinity of the ends to be joined. The pole shoe of the magnet advantageously comprises a pole piece which is conformable to the dimensions of the shape of the welded joint.

Abstract: A tube filling and closing machine includes a material feeding device which comprises a container for the material to be packaged which opens into a cylinder in which a piston is movable backwardly and forwardly for taking in the material from the container and dicharging it out through a nozzle discharge into a package to be filled. The piston is moved by a connection to a piston rod which is connected to the piston and a valve is disposed between the filling line to the storage container for the material and a discharge line to a nozzle for filling the package. A mechanism is connected to the piston to change the stroke thereof for varying the quantity of material which is filled and this includes a lever arm which is connected to a fixed pivot at one end and its opposite end provides a journal for a rotatable shaft which carries a cam plate which is in engagement with a cam roller located at a fixed location.

Abstract: The device is for winding textile thread, particularly made of synthetic material, into bobbins, and in which a driven drive roll is in frictional engagement with the bobbins wound upon bobbin supports and in which, for the purpose of maintaining a constant winding speed and constant tension in the thread, the latter, before reaching the drive roll, passes over a pivotally mounted compensating roller arranged on a pivotally mounted lever whose pivotal movement is subject to the tension in the thread which passes over the compensating roller. The lever is connected with a potentiometer in the circuit of a control device which adjusts the speed of a motor drivingly connected with said drive roll.

Abstract: A rotary drum-type collecting vessel for receiving and transporting refuse or other bulk material, comprises, a hollow rotary collecting drum having an inside wall, and includes an opening at one end which is covered by a cover plate which covers the opening and has a frusto conical interior surface which projects into the collecting drum. The frusto conical surface terminates in a frustum plane within the drum. It includes a lower portion with a charge opening and it carries a spirally extending feed blade on its surface with pushing elements in the form of ribs defined therealong and rotating therewith so as to force bulk material in an action, such as by a raking worm, into the collecting drum. The material is also pressed therein by an action such that by a thrust worm in a zone between the inside wall of the rotary drum and the frustum plane.

Abstract: A device for aligning a plurality of rows of articles, such as tea bags, on a receiving tray for subsequent packaging in a container, comprises, means for feeding a sheet of the material along a feed path. A first row of the articles is then aligned over the top of the sheet and a loop is formed directly adjacent the trailing edge of the row of articles using a first loop-forming arm which moves upwardly through the feed path to deflect the sheet upwardly into a loop behind the first row of articles and a second arm which moves downwardly behind the upwardly deflected sheet so as to form the other side of the loop. The tray thus formed includes a plurality of substantially parallel, spaced apart loops which are formed upwardly in the bottom of the sheet material.

Abstract: The winder includes pairs of rotatable chucks each supporting one or more bobbins. The two chucks of each pair include a top chuck and a bottom chuck operatively associated with a common drive roll, although the chucks may be driven otherwise. A traverse housing extends parallel to the chucks and has respective traverse guides for each bobbin. A yarn pickup or pusher is mounted on the housing for displacement longitudinally thereof by a cable cylinder. A respective yarn transfer device is associated with each chuck for swinging about the axis of the chuck between the retracted position and a yarn transfer position. Each device includes a bar or tube extending parallel to the associated chuck throughout substantially its entire length. While yarn packages are being wound at high speed on one chuck of each pair, the other chuck is in a retracted standby position.

Abstract: A land mine comprises a mine body having at least a ground facing portion with a casing formed of a surface of revolution and having a multiplicity of projectile splinters arranged therearound in a pattern of enveloping tangents, the normals of which point each splinter to a definite target area to be covered. The mine includes an explosive in the casing which is effective upon explosion to catapult the splinters downwardly in a substantially conical distribution each at a predetermined angle depending on the mass of the splinters relative to the mass of the explosive and also depending on the angle of impact of the detonation produced by the explosion on the individual splinters.

Abstract: The yarn to be transferred is fed at high speed through a traverse mechanism and between a drive roll and a bobbin mounted on a first chuck and rotated by the drive roll to cross-wind a yarn package. An empty bobbin is mounted on a second chuck parallel to the first chuck. When the package is substantially full wound, the empty bobbin is engaged with the drive roll and the yarn package is retracted to provide a clearance space between the package and the drive roll. A transfer rod on the free end of an arm pivoted on the traverse mechanism, and extending parallel to the drive roll, is swung through the clearance space to engage the yarn and draw a loop to toward the rotating empty bobbin, and the package is then reengaged by the drive roll for continued high speed rotation to maintain tension on the drawn loop while the transfer rod draws the yarn loop against and beyond the empty bobbin.