Abstract: A double-mass flywheel for installation between an internal combustion engine and a transmission. A first flywheel mass associated with the crankshaft of the engine has the shape of a first U which opens radially inward and each of the arms of the U forms a side disk. A second flywheel mass associated with the transmission has the shape of a second U which opens radially outward toward the circumference. The second U engages as a center disk between the two side disks. The two masses are turnable to a limited extent with respect to each other, with the interposition of elastic members which rest at least indirectly on the one side against the first mass and on the other side against the center disk. Damping elements are interposed between the two masses and extend parallel to the elastic members. The center disk is formed of three concentric, partial disks, comprising an inner partial disks and two outer partial disks.

Abstract: Equipment with an incorporated cardiac radio-frequency receiver (CPR) for temporary heart stimulation from the outside in case of open-heart operation, suitable to be left insitu to provide permanent stimulation if subsequently necessary. The equipment is formed of an electrode with epi-cardial stimulation tip, and a quick jack-type connection emerging from said cardiac radio-frequency receiver and suitable to rapidly and easily connect a permanent pacemaker.

Abstract: The invention concerns screen baskets featuring axially parallel screen rods with screen slots contained in between and, for support of the screen rods, rings that are coaxial with the basket axis, the rings being provided with recesses that are open toward the rim. The screen rods may have feet that are placed and fastened in the recesses. The screen rods are placed in the recesses while the rings do not have their final rounded shape. The rings are rounded so as to close the circular shape and to clamp the screen rods in place in the recesses that are constricted by the rounding.

Abstract: A signal flag apparatus is disclosed for use on a mailbox wherein a door operably connected to the mailbox is selectively closed and opened to permit and block access through a doorway to the interior of the mailbox. The apparatus includes a flag section having a pair of spaced-apart support post portions and a flag element that extends between the post portions. There are a pair of spaced-apart clip portions that detachably engage the mailbox proximate the doorway. There are also a pair of spring portions, each of which integrally interconnects a respective post portion and clip portion. The spring portions permit the flag section to be retracted within the mailbox and held therein by the door while the door is closed and urge the flag section to extend out of the mailbox when the door is subsequently opened to indicate that the door has been opened.

Abstract: A vertical fabric vane weight system is used to interconnect a plurality of fabric vanes. The vertical vanes are secured at their top end to a head rail and the botton ends are freely movable. An enclosed pocket is formed adjacent to the bottom of each vertical vane, each vane having a weight positioned in its respective pocket. A continuous chain member interconnects the weights along one edge of the vanes. Clips are used to interconnect the continuous chain to each of the weights and are removable should the chain not be a desirable feature.

Abstract: A device for separation of air from fiber suspensions of flotation devices which are heavily air- and foam-laden or represent a mixture of fluid and foam features a hydrocyclone whose inlet opening is arranged least 2.5 m below the outlet opening of the flotation device for the air-laden fluid or mixture. The separation section of the hydrocyclone is a slender, truncated cone-shaped body on whose pointed (thin) end the deaerated fluid is withdrawn. In this outlet opening there is a back pressure maintained, so that the inlet opening is not completely covered by the vortex of the fluid, leaving still a sufficiently free entrance cross section for the foam. Above the entrance section of the hydrocyclone a mechanical foam eliminator with a rotor is arranged, the rotor comprising an impeller wheel which is provided with radial blades. A funnel-shaped suction socket feeds the foam-air mixture to the impeller wheel.

Abstract: A can crushing machine comprising a first crusher device (14, 15) for crushing a can (2) from a side of the can (2) such that a first side (2a) of the can (2) is forced towards a second side (2b) of the can (2) and such that ends (2c, 2d) of the can (2) are caused to pivot inwardly towards each other and towards the second side (2b), a second crusher device (10) for acting on the pivoted ends (2c, 2d) of the can (b 2) to further crush the can (2), a magnetic separator (45, 46, 39) for holding steel based cans but not aluminium based cans whereby the magnetic separator (45, 46, 39) is able to separate steel based cans from the aluminium based cans during use of the can crushing machine, and an adjuster device (70, 89) for moving all cans placed in the can crushing machine against a stop member (93).

Abstract: The invention relates to a phase-locked loop having a variable bandwidth and comprising a controlled oscillator, a phase comparison device, two current generating devices (21-22, 25-26) and a loop filter (23-24). Each of the current generating devices is intended to produce a positive or a negative pulsed current in response to signals from the phase comparison device. The outputs of the current generating devices are each connected to a respective point in the loop filter. The loop bandwidth can be varied continuously while maintaining a desired damping factor, by increasing the amplitude of the currents from each of the current generating devices (21-22, 25-26) when the bandwidth is to be increased, and vice versa.

Abstract: The invention relates to a method and an arrangement for controlling the frequency of a radio-receiver which receives signal-sequences which have been subjected to interference and which include a synchronizing-sequence and a data-sequence. A signal-sequence is converted into signal-points intended for analysis. A Viterbi-analyzer is adapted to the prevailing interferences with the aid of the synchronizing-sequence. The data-sequence is Viterbi-analyzed through a large number of calculating stages to determine the bit-sequence of the data-sequence. A bit-sequence is extracted during the Viterbi-analysis, with a time-delay, subsequent to effecting a few calculating stages, and a corresponding extracted signal-point is calculated. The analysis-intended signal-point corresponding to the extracted signal-point is divided, time-delayed, and phase-compared with the extracted signal-point.

Abstract: A smoothing filter for a rectifier (LR) includes a series inductance (L) and a parallel capacitance (C). Because the capacitive voltage drop (V.sub.c) is in counterphase relative to the inductive voltage drop (V.sub.c) there is found on the series inductance (L) a point (K) where the voltage drop towards earth is zero for a given frequency (fg). The load (Z) on the rectifier is connected to this point (K) in order to achieve high attenuation the fundamental harmonic of the ripple voltage at this frequency.

Abstract: A gated resonant tunneling diode has a semiconductor mesa formed on a semiconductor substrate, a tunneling barrier layer between the mesa and the substrate, and a gate layered over the substrate about the mesa and aligned in close proximity to the tunneling barrier layer. A control voltage on the gate laterally constricts a potential well in the tunneling barrier to control the electrical size of a channel within which tunnelling occurs across the tunneling barrier layer. Preferably the gate and the tunneling layer are disposed at the base of the mesa, and the gate makes a rectifying Schottky junction in connection with the tunneling barrier layer. The device is constructed using an anisotropic etch to form the mesa with an undercut wall and a top portion overhanging the undercut wall, and a nonconformal deposition of gate material to align the gate with the top portion of the mesa.

Abstract: An unique automated and comprehensive through-the-wall trash handling and storage system and process which are disclosed in material to be discarded is loaded into a through-the-wall system from within and picked up by a hauler from outside an associated building. The invention contemplates embodiments of an integrated trash handling and storage system which accommodates all types of trash and many levels of automation and eliminates many of the prior art problems associated with sorting and sanitation in the handling and the storage of trash prior to disposal.

Abstract: The invention is directed to a method and apparatus for removing oil base drilling mud or like contaminants from drill cuttings. A continuous phase liquid, such as, base oil or wash water, is used to wash the contaminants from the cuttings. The continuous phase liquid and the contaminants removed from the cuttings are separated for recirculation and reuse. The separation system (10) of the invention includes a wash drum (14) for agitating the contaminated cuttings and continuous phase liquid together, a drying screen (16) for separating the larger solids from the liquid phase, a first column tank (18) and a pair of centrifuges (24 and 26) for separating the smaller solids from the liquid phase, and second and third column tanks (20 and 22) for separating the continuous phase liquid from the removed contaminants.

Abstract: A pelletized form of silica which is sufficiently dust free and highly dispersible in rubber formulations. The pelletized silica is produced by a process which involves pelletizing a mixture of silica and water in an inclined mixer and drying the pelletized product in a fluidized bed dryer.

Abstract: This invention concerns a process for making rotationally symmetric screen baskets featuring axially parallel bars with screen slots contained in between and, for support of the bars, rings that are coaxial with the basket axis, the rings being provided with recesses that are open toward the rim and the bar feet being placed and fastened in the recesses.The invention is characterized by the following features:(a) the bars are placed in the recesses while the rings do not have their final rounded shape yet;(b) next, the rings are rounded so as to close the circular shape and to clamp the bars in place in the recesses that are being constricted by the rounding.

Abstract: A cleaning apparatus having a container for holding a quantity of cleaning agent, which is vaporized and condensed to form an upper vapor layer. Essentially, the container is divided into a lower chamber, for holding the cleaning agent, and an upper chamber for containing the vapors. One or more heat pumps are adapted to establish a relatively low temperature in the upper region to condense the vapors released by the lower heating process. Multiple high thermally conductive shunting devices are coupled between the high temperature end of the heat pumps and the bottom portion of the container to transfer extracted heat from the upper portion to the lower portion, to augment the vaporization process.

Abstract: The invention relates to an expanding caravan comprising first and second modules wherein the caravan has a contracted condition in which the second module is received by the first module and an expanded condition in which the second module is displaced relative to the first module to increase the usable floor space.

Abstract: A mechanical aid for lifting handicapped persons, bedridden patients and other individuals of like disposition. The present invention is directed to a lifting device for raising physically incapacitated persons which is operably by a single attendant. To this end, a simple, light weight frame is provided with a slidable, hinged seat which is designed to raise or lower a patient alternatively from lower to higher elevations.

Abstract: A condensate suction pipe rotating with the drying cylinder extends from the area of the axis of rotation of the drying cylinder toward the inside surface of the cylinder shell, and has there a suction opening for the intake of condensate mixed with steam. A steam blowing line originating from the cylinder interior empties in the area of the suction opening into the interior of the condensate suction pipe. The steam blowing line is fashioned as an annular channel defined by the radially outer (relative to the cylinder axis) area of the condensate suction pipe and by an outside pipe surrounding the condensate suction pipe.