Abstract: A dilatation catheter has a shaft comprising a tube of braided material encapsulated over a major portion of its length in an outer coating of semi-rigid inelastic material. An outer coating of elastic material extends over a minor portion of the length of the shaft at or near its distal end. An inner coating of elastic material is provided over the entire length of the inside of the tube. The distal end portion of the catheter is thereby inflatable by pressure applied from within the shaft to form a balloon. Radio-opaque markers may be provided at each end of the inflatable portion.

Abstract: A metabolic-demand pacemaker in which the standby rate is a function of minute volume. Electrodes are placed in a blood vessel in the vicinity of the patient's pleural cavity, a known current field is established in the blood, and the impedance in the field is measured. The impedance is a function of the pleural pressure which, in turn, is a function of the patient's minute volume. The system also includes a mechanism for calibrating the standby rate to equal the nominal standby rate for a minute volume which equals a long-term average value, with the standby rate being changed in accordance with the deviation of the minute volume from the long-term average value.

Abstract: A neurocybernetic prosthesis for controlling or preventing epileptic seizures and other motor disorders includes a pulse generator which generates electrical pulses having a frequency of between 30 and 300 cycles per second, a pulse duration of between 0.3 and 1 millisecond and a constant current of between 1 and 20 milliamperes. The generator is enclosed in an epoxy-titanium shell and is implanted in the body, preferably in the axilla. Electrode leads pass from the generator through a subcutaneous tunnel and terminate in an electrode patch on the vagus nerve. Provisions are made for varying the electrical signal from the generator after it has been implanted to "tune" the same to the patient. The prosthesis may be designed to be turned on manually when the patient senses the imminence of a convulsion. Alternatively, sensors may be provided for determining changes in the values of state parameters such as electrocencephalographic waves which precede a convulsion.

Abstract: An orthotic for controlling the motion of and supporting the foot of a person is disclosed. The flexural strength of the orthotic is variable or adjustable. The means to achieve the variable flexural strength is primarily located under the medial arch portion of the orthotic. A thinner rigid orthotic and a thinner semiflexible orthotic are thereby achieved, neither of which rely upon the arch portion of the shoe of the wearer for support. The thinness of the orthotic provides for a low fit within the shoe resulting in a proper fit of the person's foot within the shoe. In one embodiment, a formed shell of two layers of plastic of contrasting colors is machined to remove a substantial amount of the bottom layer primarily along the lateral side thereby leaving a thickened portion at the medial arch portion. Heel and forefoot posts are machined into the bottom layer. In another embodiment, thin strips of plastic are heat welded to the medial underside of a formed shell of plastic.

Abstract: A small plastic connector is provided with a unique electrical contact mounted in one jaw of the connector to mate with an angled edge on the other jaw of the connector to crimp and securely grip a thin, flat, flexible electrode in the connector while making good electrical contact. The jaws and the contact are further constructed so that the conductive surface on the electrode is pressed into engaging with a large contact surface.

Abstract: An operator console for use in an imaging diagnostic apparatus, comprising means for displaying a full length figure of a human body; means for displaying respective figures representing the axial plane, sagittal plane, and coronal plane of the body figure; means for displaying respective figures representing pitching, yawing, and rolling of these planes; plane designating means which are manipulated by an operator; and tilt direction designating means which are manipulated by an operator, whereby the plane and the tilt direction designated by the operator are displayed by means of the figures in connection with the body figure.

Abstract: The combined modality device comprises an ultrasound transducer (10) which is suitable for transmission as well as reception and which is connected to a transmitter stage (20) as well as to a receiver stage (30). The transducer (10) has a bandwidth which at least equals approximately one octave. The transmitter stage (20) comprises a generator for generating activation signals for the transducer (10) with a frequency f.sub.o near the lower limit of said bandwidth, the spectrum of these activation signals excluding the frequency f.sub.1 =2f.sub.o. The receiver stage (30) comprises a B-scan channel and also a B/A processing channel (200) which itself includes a bandpass filter (210) which is centered around said frequency f.sub.1, an envelope detector (220, 230), a comparison circuit (240), a differentiation circuit (250) and a display device (260) whereby measured results in both modalities may be displayed.

Abstract: A device for measuring and indicating changes in the resistance of a living body including an analog portion, a digital portion and a source of power for supplying stable power to the analog and digital portions. The analog portion includes a bridge network which includes a potentiometer for setting a reference level for the device. The digital portion includes a potentiometer which turns together with the potentiometer provided in the analog portion and digital processing circuitry and digital displays for determining and displaying a count indicative of the position of the potentiometer and the total amount of rotation of said potentiometer. In addition, a computer could be interfaced with the device to record or play back the changes in the resistance of the living body.

Abstract: A completely flexible bronchoscopic needle assembly for use with a fiberoptic bronchoscope includes a flexible catheter having a hollow sampling needle rigidly and coaxially fixed to the distal end thereof. The sampling needle defines a lateral opening rearwardly of a cutting edge so as to permit an increased quantity of tissue sample to pass through the lateral opening and into the hollow sampling needle. The rearward portion of the lateral opening is defined by a lateral cutting edge to cut into the surrounding tissues so as to obtain a sample therefrom when the sampling needle is forcibly advanced into the tissue. The forward portion of the lateral opening is defined by a gradual inwardly sloped surface which prevents the tissue from being cut when the sampling needle is withdrawn from the tissue.

Abstract: A biopsy device is provided that includes a housing and relatively slidable tissue cutting and stylet members, both movable with respect to the housing. The members have actuators for manually moving the members and which are mounted in parallel relation to each other and when the proximal ends are equidistant from the housing, the cutting member covers a tissue receiving cavity in the stylet. The actuators are provided with stops to prevent the distal tip of the cutting member from moving distally beyond the distal tip of the stylet. A hand grip can be releasably attached to the device.

Abstract: An electromagnetic applicator (10) is provided for heating internal biological tissue, such as cancerous tumors, where applicators generate an electromagnetic field propagating across a gap (20) for forming a relative maximum power density adjacent the internal tumor volume. Conductive elements (12, 14) are spaced a predetermined distance to form a gap (20) and power is applied at radio frequencies through a balancing and matching circuit to generate the electromagnetic field which propagates across the gap (20). A plurality of applicators (10) may be placed about a body location to enable the maximum relative power density to be placed at a selected location within the body portion. A radiating dipole antenna (46) may be used to radiate a signal from which transmitted signal parameters are derived for forming a local power density maximum at a location approximated by the radiating dipole antenna (46).

Abstract: An insert is interposed between the tobacco containing portion and the filter tip of a cigarette. The insert is formed with a passage connecting the two sections. The passage is surrounded by an annulus with two diametrally opposed orifices between the passage and the orifices. Rings surround the insert over the area of each orifice. The rings fit loosely around the insert. The annulus is covered with perforated paper. In use a smoker who wants a mild taste puffs weakly while if he wants a strong taste he puffs heftily so that the rings close the orifices.

Abstract: Whole leaf tobacco can be processed to yield a sheet-like product which can be used to cut filler for the manufacture of cigarettes. Whole leaf tobacco including stem is shredded and contacted with a binding agent in dry form. The essentially dry mixture is shear agitated in the presence of moisture less than about 30 percent, based on the total weight of moisture, binding agent and tobacco. The divided tobacco is subjected to the high shear agitation in the presence of sufficient moisture to provide for activation of the binding agent. The sheared mixture is passed through a roller system to provide compressive treatment to the mixture. The processed mixture is further formed into a sheet-like shape. Tobacco material can be provided using low amounts of binding agent, using energy efficient processing steps, and without waste of tobacco material.

Abstract: A combination heated air and beard comb. A plurality of unheated teeth are alternately positioned between heated teeth. Both types of teeth are cantileveredly mounted to a hollow handle having a pair of electrical wires extending therethrough and through the hollow interiors of the heated teeth to electrically heat the heated teeth. Each heated tooth includes resistance elements therein to transfer the electrical energy into heat energy. A pair of heat shields are mounted to, but spaced apart from, the comb main body creating a heat insulation barrier for gripping purposes. A plurality of slots extend transversely across each unheated tooth allowing a beard to be passed through the slots contacting the heated teeth for grooming purposes.

Abstract: A multiple gel destainiing apparatus is disclosed, in which the gels are laid out horizontally in a series of trays arranged in a stack. Ech tray accomodates either one slab gel or one layer of tube gels. The trays are of interchangeable construction, and designed with appropriately placed openings for fluid passage so that destaining fluid flows through the tray stack in a serpentine path, sweeping one tray then sweeping the next in the opposited direction. The tray stack is submerged in a tank with continuous circulation of destaining fluid, arranged to draw the fluid downward through the stack, outward through a filter at the bottom of the tank, and upward along the sides of the tank to the top of the stack.

Abstract: This invention provides a fluid conducting device suitable for rinsing the interior of the bottom of pesticide containers. The device comprises a body having opposed ends with a fluid passage in the body, fluid inlet means in communication with a passage at one end of the body, container rupturing means at the other end of the body and extending therefrom and an abutment means separating the body from the container rupturing means. The fluid passage in the container rupturing means is in communication with the passage of the body, and the fluid discharge means in the container rupturing means is in communication with the fluid passage of the body. When the container is inverted and the container rupturing means is inserted into the bottom of the pesticide container to the stop provided by the abutment means, the fluid discharge means is disposed just slightly below the bottom of the container and is effective to discharge the fluid primarily against the interior of the bottom of the container.

Abstract: A gas vent orifice (78, 148) is located within a gas vent passageway. A closure ball (80, 154) is located upstream of the orifice (78, 148). A piston (66, 166) is located downstream of the orifice (78, 148). The piston (66, 166) includes a projection (76, 170) which projects into the orifice (78, 148), for dislodging the closure ball (80, 154) from its seated position. A mass in the form of a spherical ball (74, 160) functions to move the piston (66, 166) to dislodge the closure ball (80, 154). The mass (80, 154) rests on a conical ramp (56, 126) and the slope of the ramp serves to direct the mass (80, 154) against the piston (66, 166). A steep sloped ramp (126) may be used in combination with a piston (166) having a cylindrical center portion (168). Or, a shallow ramp (56) may be used in combination with a piston (66) having a flat upper surface and radial legs (68, 70) which fit within radial slots (58) in the ramp (56).

Abstract: The present invention is directed to a valve having a plug with a pair of passages therethrough and a housing with ports which communicate with the passages of the plug in at least two orientations to form flow paths through the valve. The valve includes a space located at the interface of the plug and housing which, when pressurized, assures that fluid leakage between the flow paths of the valve is prevented in either the first or second orientation of the valve. In the preferred embodiment of the valve the space is defined by first and second endless paths which are orthogonal to each other and intersect at the poles of the axis of rotation of the plug. Seal members may be disposed along each endless path to further assure the integrity of established flow paths through the valve.

Abstract: A floating dispersal member for controllably dispersing a material into a fluid wherein the dispersal member contains a compartment to hold a dispersant and a visual indicator to alert a person to when the dispersant is dissolved. In another embodiment the flotating dispersal member includes a flotation compartment that holds the dispersal member in an upright condition when there is a dispersant in said dispersal member and a weight which flips the dispersal member in an end-for-end condition when the dispersant is dissolved in said dispersal member.

Abstract: The invention concerns a float-controlled flow-control devie for the outlet from a sewage system, especially a rain basin. The bearings for the pivots (7 & 8) that the float arm (4) and the shutter (2) rotate on are mounted on a displaceable structure (3). This makes it possible to vary the outflow volume to be controlled even when the device is in operation, and hence to control it remotely as well.

Abstract: Valve device includes a valve chamber containing three spherical members in stacked relation which produce a limited pulsating air flow that is metered in precise amounts at any given time into the fuel/air path of a gasoline powered internal combustion engine. The valve chamber has a main entry orifice and one or more supplemental entry orifices, the size and number of which may be varied to obtain the desired range or spread of frequencies for a particular engine over its entire operating range.

Abstract: The disclosed electrically controlled starter valve (10) regulates the flow of compressed gas to an air turbine starter (11) and precisely controls the way in which the flow is reduced after start of the aircraft engine. The electronic control system (30) is responsive to previously uncompensated for engine system variables. The main valve is a butterfly valve (12) controlled by an air actuator (14). A solenoid valve (16) in the air supply line (15, 17) to the actuator (14) is switched on and off at discrete intervals to provide for positioning of the butterfly valve (12). A position transducer (R2) senses position of the butterfly valve (12) and provides a position feedback signal. A pressure transducer (R1) senses pressure at the inlet to the butterfly valve (12) and provides an inlet pressure feedback signal. The position and pressure feedback signals are fed to an electronic control circuit (30) and are used to compensate for changing conditions to provide a consistent valve (12) closing pattern.

Abstract: A quick disconnect coupling device for connecting the vertical pipe from a submersible pump in a sewage system to a horizontal pipe includes male and female coupling members. The female coupling member is connected to the horizontal pipe and is coupled to the male coupling member by guideways which are engaged by guide elements on the male coupling member. The male member includes a pair of coupling elements which are connected together to form a 90-degree coupling. A flap type check valve is clamped between the coupling elements of the male coupling member and permits the flow of waste water through the coupling, but prevents the return flow of waste water to the submersible pump.

Abstract: A post assembly for a remotely placed valve and valve actuator includes a post with a hinged cover cap and multiple windows evenly spaced below the cap and a target axially movable past said windows on an operating stem fully contained within the post and with the operating nut on said stem below the cover cap and substantially within the target.

Abstract: An assembly of operational connections for a pneumatic jack, having combined mounting for ensuring at least two operations. A first operational connection (1) ensuring the operation of regulating the discharge from the jack is provided beyond its endwall (4) which is pierced with a hole (5), with an assembly collar (6) in which is mounted a second operational connection (15) which ensures any other desired operation, arranged perpendicularly to the first operational connection (1) and equipped with a common projecting threaded ferrule (19) for the mounting of the assembly upon a jack cylinder.

Abstract: A cylinder valve for mounting on a high pressure gas cylinder for remotely controlling the flow of gas from the cylinder. The cylinder valve is resistant to hazardous gases and includes a fluid passage for conveying gas through the cylinder valve from an inlet for communicating with the high pressure gas cylinder to an outlet. A first valve is provided for opening and closing the fluid passage to control the flow of gas through the fluid passage. A pneumatically operated actuator is provided for operating the first valve in response to the application of an external control pressure to the actuator. A mechanism is provided to move the first valve and close the fluid passage in the event of loss of external control pressure to the actuator. A second valve is located downstream of the first valve in the vicinity of the outlet. The second valve is biased to close the fluid passage but is moved to open the passage in response to attachment of a connector to the outlet of the cylinder valve.

Abstract: A coupling device for receiving and retaining a coupling piece allowing coupling with pressure in the piece coupled while also providing flow checking to prevent unintended closing of the coupled valves. The device includes first and second joined tubular pieces axially movable with respect to each other between a receiving position for receiving a coupling piece and a retaining position for retaining a coupling piece. A valve is movable in the coupling piece between a closed position, an open position and a position past open allowing coupling to a coupling piece with fluid pressure therein. A stop is responsive to the receiving and retaining positions of the tubular pieces so that only when the pieces are in a receiving position can the valve move from an open position to a position past open. The stop is preferably a shoulder on a stem of the valve which engages the leading edge of a collet actuated by a sleeve. The sleeve is disposed between the valve stem and the second tubular piece.

Abstract: A valve to regulate the flow rate and the shape of a fluid stream which includes two nestings cylinders each having elongated slots with one cylinder being rotatable between a position where the slots superimpose and where the slots do not superimpose and being slidable between a position where the slots are axially aligned and a position where the slots are not axially aligned.

Abstract: An irrigation leakage prevention device for coupling between an irrigation supply source and an irrigation emitter unit. The device comprises a tubular throughflow conduit, at least the central portion thereof being formed of a resiliently flexible material and having end portions which are held against resilient displacement, a central barrier member being fixedly located within the conduit. With a water supply pressure less than a predetermined minimum, the central portion of the conduit sealingly embraces the barrier so as to prevent throughflow and when the water supply pressure exceeds this minimum, the central portion is resiliently displaced away from the barrier so as to allow throughflow.

Abstract: A tube-like carrier, for energy and supply lines, comprising a plurality of interlocking link and bracket members that can be angled relative to one another. Inwardly disposed link members are provided with outwardly directed stops, and outwardly disposed bracket members, which interconnect adjacent link members, are provided with inwardly directed stops, with the stops of the link and bracket members interlocking with one another. On the upper and lower sides of the carrier, the link and bracket members leave respective openings that extend in the longitudinal direction of the carrier. Each opening is spanned by a flexible cover strip. To be able to provide a plurality of tube cross-sections, the link members are in the form of pairs of link members, with the link members of a given pair being disposed on opposite sides of the openings. A respective crosspiece is secured to, and disposed between, the two link members of each pair of link members.

Abstract: A plain concrete pipe having an evenly distributed steel wire reinforcement is disclosed, said pipe being suitable for water piping and the like; this pipe being reinforced with a reinforcement constituted by thin wires evenly distributed and arranged in a circumferential pattern and a longitudinal pattern; a method is also disclosed for the manufacture of the pipe on an industrial scale in an efficient and economical manner (FIG. 3).

Abstract: Optical scanning and inspection of loomed fabric on one or more looms is carried out using a travelling optical scanner that scans an inspection area of fabric on a loom faster than the fabric traverses the inspection area, such inspection area provided between the weaving portion of the loom and the fabric take-up roll. The scanner generates signals that can routinely be compared with preset reference standards and which can be used to control the stopping of the loom upon the detection of a weaving defect. Fabric moving through multiple looms can be scanned in sequence by a scanner traversing multiple inspection areas of the looms.

Abstract: The weft thread is inserted into a loom shed by a gripper seizing the thread end with clamping jaws. The thread end is presented to the jaws by a suction effect when the jaws are at a standstill or just starting to move toward the loom shed. The suction effect cooperates with a thread pull-back member and, if desired, with an auxiliary thread clamp for shortening the length of thread protruding from the jaws to reduce waste. The suction effect is applied by a suction pipe having a suction slot extending across the suction pipe in the direction of the weft thread between a cut-off point and a thread presenting eyelet. The suction slot merges into a suction channel leading the free thread end into the clamping jaws and for continuously holding the thread end between cut-off and renewed seizing of the thread end by the gripper clamping jaws for a gentle handling of the weft thread.

Abstract: A weft insertion control method for controlling the operation of a weft inserting device which measures and reserves a weft by winding the weft on a stationary measuring and reserving drum by means of a rotary yarn guide, releases the weft from and detains the same on the measuring and reserving drum by reciprocating a detaining pin to the measuring and reserving drum, and picks the weft wound and reserved on the measuring and reserving drum by a picking nozzle, including a detaining pin driving process in which a present weft releasing angle and a reference weft detaining angle are compared with the phase angle the loom, the detaining pin is retracted at the weft releasing angle to separate the detaining pin from the circumference of the measuring and reserving drum and the detaining pin is advanced at the reference weft detaining angle to bring the detaining pin into abutment with the circumference of the measuring and reserving drum; a detecting process in which the number of winds of the weft unwound from

Abstract: This invention relates to the shed forming devices in weaving looms wherein each of the retaining hooks is in the form of an element which is pivotable about a horizontal pin with each element provided with a tail portion which is subjected to the reaction of a compression spring so that the head portion thereof lies in a rest position above the toe of a corresponding mobile hook. When the mobile hook causes a retaining hook to pivot so that its nose or head is in an outer position with respect to the toe, an electromagnet of the device may be selectively activated to retain the retaining hook in this outer position to thereby prevent the mobile hook from being restrained by the retaining hook.

Abstract: Apparatus for inflating tires to a test pressure. The apparatus includes a shop supply of air and a regulated supply of air. A valve system is used to connect the tire to the shop supply to seat the bead on the test rim; to exhaust the air from the tire to bring the pressure in the tire to approximately the test pressure; and to the regulated supply to bring the air in the tire to the preselected test level. The difference between the actual test pressure and the desired test pressure is measured and that difference is used to control the pressure regulator so as to correct the test pressure in the next succeeding tire.

Abstract: An apparatus is presented for the pneumatic injection of pulverulent materials into a pressurized vessel, comprising a storage silo, a distribution silo, a series of metering devices for extracting the pulverulent materials from the distribution silo, pneumatic conveying pipes connecting each of the metering devices to the vessel, and also a device for the automatic transfer of the pulverulent material from the storage silo (which is under substantially atmospheric pressure) to the distribution silo in which a pressure higher than that in vessel prevails. An important feature of the present invention is the presence of two intermediate silos each connected via automatic valves, upstream to the storage silo and, downstream, to the distribution silo; and by a pressurizing circuit connecting a source of inert gas under pressure through automatic valves to each of the intermediate silos.

Abstract: A web of pouches is carried around a rotating drum. Above the drum is a filler. The filler has a lower stationary plate with an arcuate slot in it. Above the stationary plate are two rotating plates which are vertically-spaced apart. The plates have aligned holes forming cups. A hopper is located above the rotating plates to pour product onto the rotating plates. A separator is located between the rotating plates and overlies the slot in the stationary plate whereby the lower primary cups are filled through the upper secondary cups and are discharged into pouches through the slot in the stationary plate while the separator holds back the product in the upper secondary cups.

Abstract: A container for collecting oil that has a cover and a valve assembly to control the drawing of the collected oil into a household container, such as a plastic milk container. A support assembly is provided to hold the oil filter over the valve assembly so that it can also be drained. A threaded portion on the spout of the valve assembly insures a spill free pouring of the oil.

Abstract: A rail vehicle propulsion system having an engine whose speed is a function of a selected vehicle speed, an alternator connected to the engine for generating an electrical signal to drive an electric motor connected to the axle by a variable automatic mechanical transmission. The electric motor reflects the load on the axle to the engine through the alternator. The alternator drives a plurality of electric motor-transmission combinations. For ease of servicing, the engine and alternator are mounted on a removable pallet.

Abstract: A radial ply pneumatic tire (10) has a tread portion (12) extending circumferentially thereabout. The tread has a plurality of circumferentially extending grooves (36,38,40,42) therein. The axially outermost circumferential grooves (36,42) communicate with one another through two series of crisscrossed curved grooves (44,46), with the grooves of each series inclined in opposite directions across the tread, Drainage grooves (110) extend from the axially outermost circumferential grooves (36,42) to the nearest axial edge (TE.sub.1, TE.sub.2) of the tread in a substantially axial direction. The tire exhibits good handling at high speeds on both wet and dry pavement, while also providing better snow traction than known high performance tires.

Abstract: A heavy duty low-section pneumatic and a process for manufacturing the same are disclosed. This tire comprises a radial carcass toroidally extending between bead portions, a belt composed of a first and second belt layers successively superimposed around a crown portion of the carcass and a tread rubber having substantially the same width as the maximum width of the belt. In the belt, the first belt layer is composed of at least two cord plies each containing cords inclined at a small angle with respect to the equatorial plane of the tire, the cords of which being crossed with each other with respect to the equatorial plane, while the second belt layer is composed of at least one cord ply containing non-expansible or hardly expansible cords arranged in substantially parallel to the equatorial plane and extends over both sides of the first belt layer between the first belt layer and the carcass.

Abstract: A vehicle tire with an elastomeric carcass provided with at least one reinforcement at least partially formed from elements made of flat wire generally spirally wound in a plurality of coils.

Abstract: A method and apparatus for mounting pneumatic vehicle tires, the beads of which have pull and compression resistant bead cores, with the beads, in the mounted state of the tire, being disposed on the radially inner periphery of a wheel rim next to the essentially radially inwardly extending rim flanges of the latter. A mounting mechanism is brought into contact with the peripheral region of a tire bead portion that has been introduced into the rim. The mounting mechanism is introduced in such a way that a first section of the mounting mechanism rests against the tire axially outwardly of the rim flange, while a second section of the mounting mechanism rests against the tire at the level of the rim flange and/or axially inwardly of the rim flange. These two sections of the mounting mechanism define an angle of 80.degree. to 120.degree. relative to one another. While the introduced tire bead portion is held in place against the rim, the mounting mechanism is guided along the periphery of the tire.

Abstract: A glass spacer adapted for use in a window unit having two spaced glazings including a venetian blind assembly positioned between the glazings. The spacer includes a body member which extends between the slats parallel to the edges thereof and a privacy strip which extends substantially the length of the body portion and which is perpendicular to the body portion to overlap a portion of the slats of the blind assembly.

Abstract: A rolling window screen assembly is provided for a window frame having a sill, a head and opposite side jambs. The screen assembly comprises a screen mounted at the head of the window frame and being unrollable along the jambs thereof. A pair of guide members are mounted on and extend along each side jamb for guiding the opposite edges of the screen as the screen is unrolled along the jambs. Control levers adjacent each side edge of the screen frictionally engage the guide members so as to control the position of the screen along the guide members. The guide members are mounted to the window frame jambs by a plurality of L-shaped clips which extend through a corresponding slot in the respective guide members. A spring is positioned in each guide member for centering the unrolled screen between the pair of guide members.

Abstract: An improved method of assembling molds enables the size of successive molds to be adjusted to provide cast articles having a desired size. In practicing the method, a first or initial mold is assembled in a fixture. This initial mold is used to form a cast article. The cast article formed in the initial mold is measured to determine the extent to which the dimensions of the article deviate from predetermined design dimensions. The fixture is then adjusted to compensate for the deviations in the dimensions of the cast article from the intended or design dimensions. A second mold is then assembled in the fixture. Since the fixture has been adjusted to compensate for the inaccuracies in the first mold, a product cast with the second mold will have dimensions closer to the desired dimensions.

Abstract: A mold for continuous casting has indents, grooves, or recesses in the mold wall itself and/or along one or more edges thereof; wear-proof inserts are fitted into these grooves or indents and fastened thereto by means of electron beam welding along exposed joint lines between the inserts as inserted and border edges of the indents or recesses. The inserts are affixed in this manner along edges for engagement with other mold walls, and/or along the lower edge and/or a level which is expected to coincide with the surface level of the molten steel in the mold.

Abstract: A pair of rotating rolls cool the molten metal to form a solidified shell on the surface thereof and compress the solidified shells to produce a metal sheet. A number of bearing boxes are disposed in a housing for rotatably supporting the respective ends of the rolls, and a rigid member is disposed between the bearing boxes in the housing. A prestress or initial force is applied to the rigid member through the bearing box, and a controller regulates the rotating speed of a drive in order to control the separating force occurring at a compression of the solidified shells by the rolls. By controlling the separating force, a leakage of the molten metal is prevented and a sheet metal having a uniform thickness is continuously obtained.

Abstract: For the production of horizontally divided flaskless foundry molds a mold making plant is employed consisting of a vacuum mold blowing machine, joined with a casting and cooling line and a shake out station. The vacuum mold blowing machine is provide with a pattern plate swapping device and designed in the form of a single station mold making maching, in which drags and copes of a mold are produced alternately. The single mold flask is part of the mold making machine and has means for stripping it from a drag or cope before removal of the same from the machine. This makes it possible to have one core insertion station with space for a plurality of drag without having more than one machine flask.