Abstract: A device for embedding in bone, in particular as a femoral hip-joint prosthesis, comprises a head part, a stem to be anchored in the bone, and a support collar terminating the stem at the head end. In order to make it easy for the surgeon, on reoperation, to remove the prosthesis stem from the bone tissue, the support collar can be removed. In addition, it can be combined with an anchor for attachment to the greater trochanter. By this means, on the one hand, the support collar is fixed in the envisaged position and, on the other hand, the greater trochanter participates with the adjacent lateral areas of the bone in taking up the load.

Abstract: An electronic hub odometer employs a permanent magnet and a magnetic reed switch for recording the number of revolutions of a vehicle wheel to which the odometer is mounted. A programmable integrated circuit electrically communicates with a clock crystal and the magnetic reed switch to automatically produce data relative to the time, distance and rate of travel of the associated vehicle. The data is stored in a random access memory integrated circuit. An infrared light emitting diode is employed for transmitting the data from the odometer to a remote unit. Information is also transmitted to the odometer from a remote unit via a photo-optical detector.

Abstract: Process and burner tip of an oil burner, in particular for carrying out the said process, for generating a sootless flame in pressure atomizer oil burners operating with oil atomizing cones, wherein the geometrical shape as regards length and width of the flame is determined by associating two channels (13, 24) guiding combustion air into a flame area and wherein the air volume supplied into each of the channels (13, 24) can be varied separately for the purpose of imparting to the combustion air a different whirl.

Abstract: A container for storing flat recording media, such as compact discs, has a housing and a plurality of media holders which can be moved between a storage position and an ejected position. The holders each receive a single disc and have a normally closed disc insertion slot which opens when the holder is moved to the ejected position.

Abstract: The invention relates to a process for the generation of a plasma by heating up a flowing gas and an MHD generator for performing the said process in order to achieve the generation of electrical power in an economical manner.

Abstract: A hand-held device for advancing a strip of solder or like material includes a body having a receiving end, a nose-like advancing end, and an intermediate pair of upstanding brackets. A swing arm pivotally mounted to the brackets pivotally mounts a spring biased actuating arm. The swing arm and actuating arm have tabs which cooperate to grip and advance a solder strip upon actuation of the actuating arm.

Abstract: A machine for coding or duplicating a pattern of bits onto a key blank employs a locator block which forms reference slots for receiving a key to be duplicated. A template having a matrix of openings which correspond to possible pre-established bit locations is positioned in registration with the key receiving slots. A depth gauge is employed so that a guide selectively seated in a bit defining cut-out of the pattern key indicates the correct incremental depth of the bit to be duplicated. A cutter having a preestablished relationship to the depth gauge guide is employed to obtain the correct cutting depths for the key blank bits.

Abstract: The invention relates to a liquid ring compressor in which only one central emptying opening is provided to the outside per compressor stage. It is ensured by means of appropriate connections of the chambers pertaining to each compressor stage that the entire auxiliary/operating liquid can flow out of the compressor through the central emptying opening (s) when the compressor is stopped.

Abstract: Partially completed cigarette packages are ejected from cells mounted on a turret of a wrapping machine by a pusher device which is caused to both reciprocate axially with respect to the cells and also to move with the cells over a limited arcuate range. The reciprocating motion is controlled so that the impact speed of the pusher device on the cigarettes is low while the average pusher device speed is relatively high. The arcuate motion of the pusher device is controlled so that the time required to complete the ejection and withdrawal strokes thereof can be greater than the dwell time between steps of motion of the cells. A back-up member moves in synchronism with the pusher device during the ejection stroke to prevent opening of the package end opposite to that corresponding to the operating region of the pusher device.

Abstract: A liquid treatment system, for example a water purification system, includes a treatment vessel which contains a bed of ion-exchange or adsorption material. The system also includes a washing vessel to which batches of the material comprising the bed in the treatment column are transferred for the flushing of contaminates therefrom, the washed material subsequently being returned to the treatment vessel. The material supply and discharge arrangement for the washing vessel is designed such that the quantity of treatment material withdrawn from the treatment vessel may be selected and will be self-limited.

Abstract: A parachute quick release coupling having overlying and underlying coupling members and a latching mechanism pivotally mounted on a lower upstanding lug of the underlying coupling member to be withdrawn outwardly and downwardly from a normal latching position thereof overlying the upper coupling member to release the coupling and then eject the latching mechanism from the underlying coupling member.

Abstract: In a delivery unit for bookbinding machines, book blocks released by the transport grippers of an adhesive-binding apparatus are transported by a conveyor along a downward-inclined linear path segment which is followed immediately by a horizontal path segment. The conveyor comprises an endless chain drive, routed around reversing sprockets, which transport carrier plates are positioned on the chain at regular intervals. The carrier plates are comprised of individual plate links which are pivotally interconnected but which support each other so that they cannot sag in the loading direction. The leading side of each carrier plate is pivotally coupled to the chain drive, while its trailing side is coupled to the chain drive via a slide-guide.

Abstract: A dual controller for an IV infusion system comprises a microprocessor to concurrently control the rate of infusion through two IV units. The control of the rate of infusion is provided by a stepper motor driven regulator which is selectively positionable for compressibly engaging the IV tubing. A flow sensor employs a case of infrared transparent material which mounts to a drip chamber of the infusion unit. The flow sensor provides an output pulse to the microprocessor in response to a drop of fluid in the drip chamber interrupting a light path extending from an array of light emitting diodes and a photo transistor. The light emitting diodes are pulsed between energized and non-energized states so that changes in the ambient light level do not adversely effect the sensed drop rate.

Abstract: Open-topped containers are sterilized by employing an electrostatic field to insure complete coating of the interior surface of such containers with a sterilizing agent. The sterilizing agent is supplied in liquid form, ultrasonically atomized, the thus formed droplets entrained in a stream of carrier gas and an electrical charge imparted to the entrained droplets so that they will be influenced by the electrostatic field created in the containers.

Abstract: An improved casing hanger for suspending a pipe string from a casing head at a well head employs a plurality of slip members having a series of teeth which are adapted for frictionally engaging the wedging surface of a slip bowl. The teeth have a profile which gradually tapers in accordance with the distance from a central portion of the slip member. The slip member is deformable from a first configuration wherein the edges of one surface of the slip member engage the pipe string while the central portion of the surface is spaced from the pipe string and the opposite surface of the slip member has a central portion which engages the slip bowl with the ends of the outer surface being spaced therefrom to a loaded configuration wherein the surfaces of the slip member engage the pipe string and the slip bowl along a series of substantially continuous arcuate paths.

Abstract: A film of adhesive is deposited onto a linearly moving book block back through use of an applying roller which rotates at a preselected nominal speed relative to the velocity of the book block. The rotational speed of the applying roller relative to its nominal speed is varied to obtain optimum application of the adhesive, the variation in speed including an increase in speed for a short time upon establishment of contact between the roller and book block.

Abstract: A key-in-knob type cylinder replacement system comprises a replacement cylinder having a generally cylindrical shell and a plug having a keyway and housing pin means to prevent the rotation of the plug. A false bible dimensioned to be generally commensurate in size and shape to the projecting pin housing of the cylinder to be replaced is mounted to the cylinder shell. An adaptor means for actuating the latch assembly in response to rotation of the replacement plug is secured to the replacement cylinder plug by means of a clip. A replacement kit provides a plurality of false bibles and adaptor means, each of which is adapted to be mounted to the plug of the plug-shell combination to form a replacement for a conventional key-in-knob cylinder.

Abstract: An automatic door installation with two traffic sensors mounted on each side of the door adjacent the opposite side edges thereof, each having a reflected energy receiver and a plurality of radiant energy emitters with angularly spaced beam axes to provide broad coverage areas intersecting the traffic path of travel. The emitters of each sensor are selectively activated at different radiant energy levels and/or selectively deactivated to vary the effective coverage area as the door is swung between its closed and open positions.

Abstract: A Beam-forming Network includes a plurality of directional couplers and phase shifters and which can interconnect both a transmitter and a receiver to the same group of radiating elements of an antenna even though the transmitter frequency band is different and well spaced from the receiver frequency band. This is accomplished, in accordance with the invention, by using directional couplers each of which has a variable response over a wide band of frequencies but which is designed so that its response over the transmitter frequency band is stable and its response over the receiver frequency band is also stable.