Abstract: An alignment cap for mounting artificial teeth on a working model, characterized thereby that it mainly consists of a proper arched cap made of a transparent material, e.g. a plastic, which at its back-side is hingedly fixed to an axis of rotation.

Abstract: A dental handpiece, consisting of a gripping sleeve part with a built-in air motor for the drive of a treating implement which is supported within the gripping sleeve part. The gripping sleeve part has a detachable connecting member associated therewith; and the air motor has a control device possessing a handgrip associated therewith for changing the direction of rotation of the air motor; and wherein the connecting member is further provided with two passageways having outlet orifices connectable with the air motor for, respectively, the infeed of driving air and the discharge of exhaust air. For collective gripping sleeve parts which are brought into exchangeable engagement with the connecting member, it is necessary to provide only a single control device for changing the direction of rotation, which results in a simple mounting of bearing support for the gripping sleeve parts.

Abstract: A denture includes an upper and lower row of teeth, with a continuous chewing bar embedded along the buccal cusps of at least part of the lower row. Insert members are embedded in the opposed occlusal faces of teeth in the upper row, and are shaped to form arches or indents against which the chewing bar travels on articulation of the denture to create a scissors action.

Abstract: A method and apparatus is disclosed for use by dental practitioners to enable the restoration of decayed or damaged teeth. The method comprises preparing the tooth for installation of the disclosed apparatus, which will be referred to herein as a pillar cusp, by removing decay, old restorations and damaged tooth structure, and then preparing a horizontally disposed, flat circular area or niche on the dentin for each cusp to be restored. The flat circular area should be approximately centered on an axis located through that of the removed cusp. A vertically disposed channel is then drilled at the center of the niche and a self-threading dental anchoring device or screw is inserted into the channel. The pillar cusp, which, in effect, is an artificial or man-made dentin, is then threaded onto the screw.

Abstract: A picture book comprising the front and back covers and further a plurality of printed paper sheets therebetween, characterized in that said front cover and paper sheets have each window cut in aligned positions, and in that a telephone structure is attached on the inside surface of said back cover so that the dial is always appearing in said windows.

Abstract: A computerized training system allows physicians, nurses and other medical professionals to obtain substantial experience in hemodynamic monitoring without need to acquire all that experience with live, critically ill patients. The system simulates the entire process of hemodynamic monitoring, including the physical process of introducing the catheter through an insertion site in a manikin, feeding the catheter through the veins, the heart and into the pulmonary artery, inflating the balloon at the tip of the catheter, and interpreting the measured pressure and other information obtained.

Abstract: A water craft includes a pair of spaced buoyant panels mounted to a substantially H-shaped frame. A pair of fins mounted along a central longitudinal member of the frame between the panels provides propulsion and steering control. Propulsion is maximized by means of a combined cam, linkage and telescoping support structure that varies the length of the aft fin so as to oscillate the fin in a substantially figure eight path. Further, the rigidity and flexibility of the fin may be controlled through a tension cable and hand actuator.

Abstract: A marine propeller mounting arrangement includes a sleeve member (14) for mounting on a propeller shaft (11), a propeller (10) having an inner hub (17) which fits over the sleeve member (14) and a cushion member (16) fitting between the sleeve member (14) and the propeller inner hub (17). The sleeve member (14) includes radially extending projections (26) registering with channels (31) in the hub to positively drive the propeller (10), even in the event of failure of the cushion member (16). The propeller (10) has an outer hub (28) surrounding the inner hub (17) to define an exhaust gas passageway through the propeller (10).

Abstract: A marine propulsion device comprising a mounting bracket adapted to be fixedly attached to the transom of a boat and having therein an opening, a propulsion unit pivotally connected to the mounting bracket for pivotal movement relative to the mounting bracket, a hydraulic cylinder/piston assembly connected between the mounting bracket and the propulsion unit for effecting pivotal movement of the propulsion unit relative to the mounting bracket, a manifold fixedly attached to the mounting bracket adjacent the opening, the manifold being adapted to be connected to a source of hydraulic fluid inside the boat, and a fluid line communicating between the manifold and the hydraulic cylinder/piston assembly for supplying hydraulic fluid to the cylinder/piston assembly.

Abstract: A marine contra-rotating propeller apparatus for propelling a ship by contra-rotating propellers is characterized by the provision of an inner shaft having one end directly coupled to an output shaft of a main diesel engine and the other end to which an outside propeller is mounted and an outer shaft having one end coupled to the inner shaft through a reversing transmission mechanism and an elastic coupling and the other end to which an inside propeller is mounted.

Abstract: A flexible foot binder is held in a slideable assembly which has upward facing detents along opposite sides. Inward opening slideways have over-the-center eccentric cam locks mounted on transverse pins. The cams engage the detents to press the slide assembly downward on the ski and to prevent motion of the slideable assembly.

Abstract: Rescue apparatus for rescuing a person in water has a body with inflatable pontoons interconnected by upper and lower frames to provide an opening between the pontoons to receive the person. Thrusters cooperate with the lower frame below the surface, and receive power and control signals to control movement of the apparatus on the surface. A net enclosure encloses the pontoons and frames and has an opening adjacent one end to receive the person. The upper portion of the apparatus is lighter than the lower portion, preferably by having the upper frames inflatable, to provide a low center of gravity for self-righting if the apparatus becomes inadvertently inverted. The lower frame can include two generally U-shaped frame members which are shaped to fit one within the other to reduce storage volume of the collapsed apparatus when the pontoons are deflated.

Abstract: A weight holder for removable and replaceable attachment to the nose portion of a toy aircraft. The weight holder is adapted to be integrally mounted to a protruding nose portion of a wing panel on a toy aircraft. The weight holder has opposed clamping jaw portions connected by a hinge element. The facing surfaces of at least one jaw has a weight-seating chamber for receiving a weighted object which is to be secured to the aircraft by the weight holder.

Abstract: A knockdown toy having a number of component series, that, when assembled, are designed to resemble and simulate a space station or space ship. Each component series includes a number of identically-shaped parts that are interconnectable and repositionable to resemble a space ship or station. Seven major component series are included, each of which is designed to resemble, when constructed together, different operating and basic parts of a space station or space ship, whether real or imagined. Supplementary component series are also provided to simulate other parts of a space station or space ship such as engines, antennae, fuel tanks, landing pods, solar panels, and heat radiators. These supplementary component parts are connectable to some of the major component parts either directly or by means of tie pins.

Abstract: An assemblage toy which includes a robotic humanoid form that can be interconnected with optional assemblage elements is provided. Interconnection recesses and/or projections are provided on the humanoid parts of the robotic assemblage toy and on the optional elements to facilitate the formation of new toy objects.

Abstract: A turkey caller comprising a body portion with a removable mouthpiece connected in an airtight manner to one end and a trumpet reciprocably mounted on the other end of the body portion. A plurality of axially aligned passageways extend through the mouthpiece, body portion, and trumpet with the passageway in the trumpet being the largest in diameter and the other passageways being successively smaller as they extend in communication with each other through the trumpet, body portion, and mouthpiece. Air is sucked into the trumpet to produce sounds simulating wild game, such as turkeys.

Abstract: An apparatus for launching toy vehicles utilizes a hexagonal magazine, rotatably mounted on a frame, having a plurality of pairs of open-ended chambers therein. The magazine is rotated to align a pair of chambers having toy vehicles therein with, respectively, a first and a second ram disposed on the frame, positioned, by an arm, against the urging of springs, back from the openings of the chambers, and locked in place. The rams are selectively, independently releasable, upon forward motion of the arm, which simultaneously engenders a revving sound, to enter corresponding chambers and launch toy vehicles therefrom.

Abstract: A protective bellows, particularly for use in drivelines of agricultural implements, is formed with a resilient bellows having a lubricating opening with a removable plug. A resilient ring extends around the bellows in one of the folds thereof, and a connection member is provided on the resilient ring for connecting the plug thereto.

Abstract: A continuously variable transmission (hereinafter called CVT) comprises input pulleys, output pulleys and a belt which is trained over the input and output pulleys to transmit a driving torque. Line pressure is used for a force of the pulleys pressed against the belt on the input or output pulleys. The line pressure is adjusted in relation to engine torque which is calculated on the basis of engine speed, an intake throttle position and atmospheric pressure. The line pressure is alternatively adjusted in relation to the atmospheric pressure which is detected from the feedback correction of fuel injection.

Abstract: A hydraulic control system for a continuously variable transmission having a first and a second variable-diameter pulley provided on a first and a second shaft, a transmission belt connecting the first and second pulleys to transmit power from one of the first and second pulleys to the other, and a pair of hydraulic cylinders for changing an effective diameter of the pulleys engaging the belt. The hydraulic control system includes a hydraulic source delivering a pressurized fluid, and a flow control device for controlling a flow of the pressurized fluid from said hydraulic source into one of said hydraulic cylinders, and a flow of the fluid from said one hydraulic cylinder, thereby changing the effective diameters of the pulleys to vary a speed ratio of the transmission.

Abstract: A multi speed transmission mechanism for use on a bicycle, for example, wherein pressure on the pedal by the operator decreases or increases the diameter of the driver sprocket wheel to alter the gear ratio correspondingly. The sprocket is provided with opposed segments which are linked to both the sprocket wheel and an inner control disc. The segments move radially outwardly or inwardly in unison responsive to limited rotation of the control disc independently of rotation of the sprocket. Such rotation is foot controlled by the operator. Pressure on the foot pedal by the operator increases or decreases the working length of the bicycle sprocket chain by making the effective diameter of the sprocket smaller or larger. This alters the gear ratio correspondingly. The gear ratio may be maintained without change by a locking device on the sprocket wheel in contact with the control disc.

Abstract: A pair of reaction and guide roller are located between the toothed gears of two oblique shafts and act on the back of two branches of a toothed belt driving the gears, the axis of each roller being positioned at a substantially intermediate angularity with respect to the direction of the two shafts of the one and of the other toothed gear and being lined up with the axis of the belt teeth in the contact area with the rollers, the ratio between the distances of the pair of rollers from the gears being almost equal to the ratio between the diameters of the gears.

Abstract: A derailleur for a bicycle having a derailleur body having a base member, a movable member having a chain guide, and a support means for supporting the movable member movably axially of a multistage sprocket assembly with respect to the base member; and a control cable for movably controlling the movable member, whereby an amount of movement of the chain guide in the axial direction of a multistage sprocket assembly is made adjustable with respect to a constant control amount of the control cable.

Abstract: The invention relates to a rocking idler for guiding driving members such as roller chains, belts and like members, comprising a hub adapted to be freely rockably mounted on the same axis of rotation of a driving mechanism, said hub having extending therefrom in a diverging manner a couple of guiding means adapted to receive the respective two laps, the taut lap and the slackening lap of the chain and like driving means which is a part of the driving assembly.

Abstract: A drive chain-sprocket combination comprising a chain constructed of alternate single toed or toothed links and links, similar to British Standard roller chain links, joined by pivot means meshing with sprockets formed of outer members and a central spacer of a second and lesser diameter having cavities matching the toes of the toed links. The outer members extend radially beyond the central spacer and provide rims which act as guides to maintain chain-sprocket engagement.

Abstract: A multiple sprocket wheel used as a unit in a two-wheeled vehicle and for a multi-speed gear without involving separation of a chain guard from a plurality of sprockets.

Abstract: An endless power transmission belt construction and a clip for a transverse belt element therefor as well as methods of making the same are provided, the belt construction comprising an endless flexible carrier that has a longitudinal axis and a plurality of transverse belt elements assembled on the carrier. Each belt element comprises a plurality of parts secured together to define an opening passing transversely therethrough and receiving the carrier therein. One of the parts of each belt element comprises a generally C-shaped clip that in a direction substantially transverse to the longitudinal axis of the carrier snaps over and substantially encircles and holds the remaining parts of the respective belt element in their assembled relation.

Abstract: A V-belt transmission apparatus made of a pair of endless metallic belts and a plurality of V-shaped metallic members disposed in series in a stacked condition on the belts. Each V-shaped metallic member has laterally open, channel shaped grooves on both sides with the metallic belt on each side being inserted in the groove on that side. Each V-shaped metallic member includes a main body having a projection portion and a stopper member prepared separately from and attached to the projection portion of the main body. The stopper member forms upper wall portions defining the channel shaped grooves together with the main body.

Abstract: This invention makes it possible to produce a chain having a particularly small overall width, while able to operate with sprockets having a customary tooth thickness. This result is obtained in particular by providing for the inner plates (10) to be deformed, in their end zones (12), on both faces and to delimit projecting portions (16c) directed towards the interior of the chain, these projecting portions thus being separated by a distance (d.sub.1) smaller than the thickness of the teeth of the sprockets with which the chain is to cooperate.

Abstract: A transmission chain for a conical disk transmission with intercoupled links receiving link pins of which the end surfaces bear against the disks, and in which the contact zones between the longitudinal sides of the pins and the links are shorter than the upright sides of the link openings and offset in longitudinal direction of the links with respect to the ends of these sides.

Abstract: A power transmission belt for transmitting high loads having an elastomeric looped flat belt portion having a longitudinally extending tensile cord and defining an outer surface and an inner surface, and a plurality of longitudinally extending spaced blocks mounted to the outer and inner surfaces respectively of the flat belt portion. Each block is formed of a core and a fabric wrapped around the core. In one embodiment, the block is secured to the flat belt portion by bolts extending therethrough. The fabric of the blocks may be treated with different materials, such as rubber, synthetic resins, and the like. The core may be formed of an elastomeric material. The flat belt portion may be provided with one or more layers of fabric.

Abstract: A flexible drive belt for coupling at least two pulleys such as those found on a motor vehicle engine. The belt is manually installable without adjusting the distance between the pulleys and is particularly useful for temporary or emergency installation in place of a broken drive belt. The belt includes first and second ends which are fastened together to form an endless drive belt. The first end of the belt is provided with a series of openings which accept a corresponding number of projections which extend perpendicular to an intermediate surface of the second belt end. Both the first and second belt ends are provided with intermediate surfaces such that when joined a smooth inner surface is formed. For a permanent installation, locking pins may be disposed within throughbores extending through the sides of the projections such that the projections are prevented from unmating with the openings of the first end.

Abstract: A power transmission belt having a compression portion. The belt is composed of rubber having disposed therein at least approximately 2 to 100 parts by weight of ceramic powder per 100 parts by weight of rubber. The belt provides remarkably improved wear and adhesive resistance without decreased bending resistance.

Abstract: Discrete sheets of separator material for use in dry cells are introduced tangentially into an annular clearance between the cylindrical internal surface of an outer tool and the cylindrical peripheral surface of an inner tool, and the inner tool is rotated about its axis while one or more spring-biased rollers urge the sheet in the clearance against its peripheral surface so that the sheet is converted into an inner tube which tends to expand radially and is introduced into an outer tube in response to axial shifting of the inner tool. A shoulder between the inner tool and a support for the inner tool pushes one end face of the inner tube from the clearance, and the inner tube is free to expand radially into contact with the internal surface of the respective outer tube in response to complete expulsion from the outer tool.

Abstract: A machine for making plastic bags, such as trash or garbage bags, includes a rotary sealing drum of variable diameter, the drum including one or more sealing bars for cross-sealing a flattened plastic film tube passing through the machine. A blanket tensioning system surrounds the drum and is adjustable to compensate for different drum diameters. The sealed film passes over a chill roll after leaving the drum-blanket assembly and is drawn over folding boards by pull rolls. The sealed and folded film is then perforated by a fly knife and is preferably also cut on the sides to produce a connected series of bags which may easily be separated from one another to make the bags suitable for easy dispensing packages. A variator assembly may also be provided to insure a proper skirt length between the cut-perforation and the bag seal.

Abstract: Apparatus for severing window patches from a web of patch material includes a mechanism for applying adhesive to selective portions of the web, a pair of cooperating rolls to feed the web to the adhesive applying mechanism, a vacuum roll engaging successive window patches with adhesive, a severing mechanism cutting successive window patches of a pre-selected length from the web in spaced relation to a portion of the web engaged to the surface of the vacuum roll, a vacuum conveyor positioned between the adhesive applying mechanism and the severing mechanism to advance the web along a path from the adhesive applying mechanism toward the severing mechanism, a discharging end portion of the vacuum conveyor being spaced from the severing mechanism. The vacuum conveyor is constructed and arranged to transport the web from the adhesive applying mechanism, a pre-selected distance through the vacuum roll before the web is transferred to the vacuum roll and from the latter to the severing mechanism.

Abstract: There is provided an improved apparatus for forming foldable box blanks from a thermoplastic sheet by forming flexible fold lines in the thermoplastic sheet, with the apparatus including a plurality of scoring tools and a flat plate having a plurality of grooves formed therein opposite to the scoring tools. In addition, the apparatus includes means for heating the scoring tools to less than the melting temperature of the thermoplastic sheet. In this manner, when the heated scoring tools engage the thermoplastic sheet, it is deformed on its upper surface by the scoring tools and on its lower surface by the grooves in the grooved plate to form a plastic sheet having the desired flexible fold lines.

Abstract: A one-sided corrugated cardboard machine comprising a machine stand, an upper and a lower fluted roller as well as a pressure roller cooperating with the lower fluted roller and pivotally supported on lever arms at the machine stand, adjustable abutment surfaces at the machine stand associated with the lever arms, and an adjusting mechanism supported at the machine stand and cooperating with the lever arms which to adjust the pressure roller nip urge the lever arms against the abutments, with the abutment surface arranged to face the pressure roller nip and limiting the movement of the lever arms away from the pressure roller nip.

Abstract: In apparatus for receiving and reinfusing a patient's own blood, a rigid container encloses a readily deformable inner container, blood being drawn into the readily deformable container by suction and being displaced therefrom by pressure applied between the outer container and the inner container, for pressure reinfusion. Alternatively, the apparatus has a concertina-like container which is held in its expanded condition by a support structure during the blood-intake suction phase, the blood being displaced from the container back into the patient by compression of the container. In another alternative form, the container is a concertina-like container with a high degree of resiliency adapted to expand it into an expanded condition, the container drawing blood from the patient by being compressed before being connected to the patient and then sucking the blood into the container by expansion under the effect of the resiliency.

Abstract: A unitary device for the treatment and collection of blood from two different sources during a surgical procedure comprises a hollow housing made of a rigid, preferably transparent, material, first and second blood inlets in the housing, a first blood treatment element inside the housing comprising a layer of porous defoaming material and a layer of non-woven depth filter material, and a second blood treatment element inside the housing comprising a layer of porous defoaming material and free of any depth filter material. The novel device also includes internal walls for providing two blood flow paths therein, one through the first inlet, the first blood treatment element, a blood collection reservoir defined within the device and a treated blood outlet in the bottom wall of the housing, and the other through the second inlet, the second blood treatment element, the blood collection reservoir and the blood outlet.

Abstract: A disposable irrigating combination scalpel blade and incision irrigator provided with a hollow scalpel handle from which extends the scalpel blade and a cannula connected to the interior of the hollow blade handle and positioned within a critical angular range to the cutting edge of the scalpel so as to permit continuous washing away of blood during the surgical procedure. A flow of fluid to the cannula through the hollow scalpel handle is controlled by a foot pedal operated by the surgeon leaving one hand free for manipulation of the scalpel blade and the other hand free to hold other instruments such as forceps used in the surgical procedures.

Abstract: A disposable "third hand" holder for CAPD exchange sets holds a set connector and a cap in an aseptic condition until ready for use. The holder is adhesively secured to a work surface. After the set connector has been removed from the holder and the exchange is under way, a sterilant tube can be connected to the holder in place of the set connector, and its contents can be squeezed out through a passage within the holder into the interior of the cap. When the patient's catheter is eventually capped, the sterilant in the cap maintains all interior surfaces of the catheter connector in an aseptic condition.

Abstract: In an aspirating and feeding device for insertion into a patient's body there is an aspirating lumen and a feeding lumen. A set of primary and secondary orifices are placed through the tube for communication between the aspirating lumen and the exterior of the tube. The size of the primary and secondary orifices relate to each other such that the secondary orifices are smaller than the primary orifices. The feeding lumen has an external end portion to be disposed outside the body and an internal end portion to be disposed in the proximal segment of the small bowel. The internal end portion having an orifice therein for the discharge of food.

Abstract: An aspirator for withdrawal of secretions from wounds has an evacuated vessel wherein the subatmospheric pressure prior to admission of secretions into its interior is maintained at a level of between about 0.8 and 1 bar. The vessel carries indicia denoting (e.g., in percent or in milliliters) the known-in-advance maximum quantity if secretions which can be sucked into the vessel by way of a cannula as well as lesser quantities which accumulate in the vessel while the pressure rises above the predetermined level as a result of admission of secretions.

Abstract: This invention is a veterinary instrument for non-surgically implanting in an animal's uterus a live embryo for the purpose of inducing pregnancy. The device is comprised of a tip element having a small, medium and large diameter bore partially therethrough, an exit passage in communication with the small diameter bore terminating at a laterally positioned countersunk exit hole. An embryo containing straw is positioned within and compressed by the medium diameter bore. The tip is screw connected to a plunger element having a rod therethrough which is adapted to fit within the embryo containing straw and to force the contained embryo out of the countersunk hole. A modification of the instrument includes a thumbscrew positioning ring on the end portion of the plunger element adapted to mark the position of the countersunk hole so that it may be properly oriented when it is within the animal.

Abstract: In a needleless injection instrument with a removable vaccine pump, the motor housing (1) is provided with a receiving bush (20) which is to receive the vaccine pump. In an opening (7) in the motor housing (1) and the receiving bush (20), a bolt (6) is located which is loaded by a spring (9) and has a nose (5) which engages in a recess (4) in the pump housing (18). The motor housing is also provided with a displaceable operating element (8), to which the bolt (6) is connected and which has a recess (11) for receiving a locking device (14). The locking device (14) is fixed by means of a leaf spring (13) to the motor housing; it can engage either in a groove (15), located in a spring housing (17) provided in the motor housing, or in the recess (11) of the operating element (8).

Abstract: Position locating device for interstitial radiotherapy of a body portion comprising a flexible sheet member for being received about and conformed with a body portion which is to receive radiotherapy, the sheet member having a plurality of spaced position locating means, and attachment means for releaseably securing the sheet member about the body portion. The position locating means of the sheet member comprises a plurality of spaced openings arranged in rows and columns, and the attachment means comprises a pair of clamping units securing a plurality of bands with the ends of the sheet member. The clamping units are detachably secured with the sheet member for being replaced and repositioned therewith and the first ends of the bands are pivotally secured with the respective clamping units, while the second ends of each of the bands of one of the clamping units is detachably securable with a corresponding one of the second ends of the bands of the other clamping unit.

Abstract: The valve is positioned in the left ventricle drain line and includes a check valve which permits flow only away from the heart and downstream of the check valve includes a vent valve which prevents buildup of pressure. In addition, the valve includes a manually adjustable vacuum control orifice whereby the surgeon can control the left ventricle drain line vacuum intensity applied to the heart.

Abstract: An IV filter and pump assembly having first and second bodies secured into a unitary assembly. The first and second bodies provide a chamber. One of the bodies has an opening therein in communication with said chamber and an inlet port therein. The other of the bodies has an outport therein. The inlet and outlet ports are in communication with the chamber. An inlet valve controls the flow of liquid through the inlet port and an outlet valve controls the flow of liquid through the outlet port. A hydrophobic filter is carried by the unitary assembly and is in communication with the upper portion of said chamber for venting to ambient small quantities of air in said chamber. An actuator supplies a pumping action to the liquid in the chamber so that liquid is caused to be moved out of the chamber through the outlet valve and into the chamber through the inlet valve.

Abstract: A rumen injector having a body, an interacting piston and cylinder mounted within the body, a needle fixed to the cylinder, and wherein the cylinder is movable from a rest position to a cocked position and said piston is movable within said cylinder from a rest position to a cocked position so that in use of the injector said cylinder is first released to cause insertion of the needle and then said piston is released to cause injection of a dose into the rumen of the animal.