Abstract: New salts of 5'-methylthio-5'-deoxyadenosine (MTA) with long-alkyl chain sulphonic acids, which possess central and peripheral vaso-dilatory, platelet antiaggregation, antiinflammatory, analgesic and antipyretic activity.Said salts are produced by dissolving the sodium salt of the chosen sulphonic acid in distilled water, dissolving the MTA in distilled water to which H.sub.2 SO.sub.4 has been added, reacting together the two solutions to precipitate the MTA sulphonate, and recovering this latter salt with a high degree of purity.

Abstract: A normally-closed pin switch mountable on a vertical wall and adapted to open only when actuated by a movable closure member. The switch includes a metal bracket defined by a generally-rectangular mounting plate having mounting holes adjacent either end thereof and a ledge cantilevered from the upper edge of the plate at its midsection whereby the bracket may be secured to the vertical wall to position the ledge in a horizontal plane. Integral with the ledge and projecting therebelow is a hollow metal cylinder whose upper end registers with a port formed in the ledge and whose lower end acts as the fixed contact of the switch. Slidably received in the cylinder is a plunger rod of insulation material, the lower section of the rod extending through the lower end of the cylinder and terminating in a contact acting as the movable contact of the switch. The rod is spring-biased to normally urge the movable contact into engagement with the fixed contact to close the switch.

Abstract: A one-piece, pre-shaped anchor adapted to be forcibly driven axially into a tightly-fitting hole so that the anchor makes a strong interference fit therein. The anchor is constituted by a drivable element and an elongated shank integral therewith. The shank is pre-shaped to have an end portion furthest from the element which extends in the direction of the longitudinal axis passing through the element and shank, and to have at least one undulation between the element and the end portion that creates a bend having a peak on one side of the shank between spaced apart base portions on the other side of the shank. The anchor is formed of resilient material, whereby when the shank is driven into the tightly-fitting hole, the undulation will then be forcibly altered by reaction with the wall of the hole, and in seeking to recover its originl shape, will secure the anchor in place.

Abstract: A construction toy set whose main component is a cubical open-top box, the bottom and side walls of which are divided into quadrants, each having a keyhole therein and a coupling collar encircling the keyhole and projecting from the quadrant. Also included in the set are cylindrical spacers that fit over the collars and extend therefrom, wheels having cylindrical hubs that can slip over the spacers which then function as axles, and hub caps that rest against the outer end of the spacers or the wheel hubs, each cap having a center keyhole matching the quadrant keyhole. The components can be assembled and interconnected to create different structures by means of connector bolts each having a key at one end capable of passing through the keyholes.

Abstract: A mass flowmeter of the Coriolis-type in which fluid to be metered is conducted through a flow tube which is coiled to define a helix having a pair of identical measuring loops forming a double loop, on either side of which is an isolation loop. The fluid is admitted into the input of one isolation loop and is discharged from the output of the other isolation loop. The helix is concentric with a support structure having at one end a flow inlet to which the isolation loop input is affixed, and at the other end a flow outlet to which the isolation loop output is attached. A rigid bar parallel to the axis of the helix is joined to the junction of the measuring loops as well as to the respective junctions of each measuring loop and its associated isolation loop whereby the isolation loops then function as decoupling springs to effectively isolate the bar and the double measuring loop from external forces.

Abstract: An electromagnetic flowmeter in whose primary the fluid to be metered is conducted through a flow tube to intercept a composite magnetic field to induce therein a voltage which is picked up by capacitive metering electrodes. The composite field is formed by a low-frequency comparison field having a long period on which is superimposed a high-frequency switching field having a short period. The voltage from the capacitive electrodes is fed by way of a high pass filter to the input amplifier of a secondary whose amplified output is analyzed to provide separate components, one originating from the comparison field and the other from the switched field. An output signal is produced in accordance with the time phasing of these components, after compensating for the signal loss experienced in the filter by the comparison field component by means of a compensation voltage derived from the switched field component.

Abstract: An electromagnetic flowmeter whose primary includes a flow tube through which the fluid to be metered is conducted to intersect a magnetic field and thereby induce a voltage therein that is transferred to electrodes to produce an electrode signal as a function of flow rate, which signal includes a noise voltage. The electrode signal is applied to the input amplifier of a secondary whose output is fed to one input of a summing stage, the output of which is fed to a range amplifier that yields a test voltage, the input and range amplifiers producing offset voltages. To compensate for the noise and offset voltages, a compensation voltage is derived from the test voltage and applied to the other input of the summing stage. This compensation voltage is produced only when the test voltage exceeds a predetermined threshold value.

Abstract: A biomagnetic analytical system for sensing and indicating minute magnetic fields emanating from the brain or from any other tissue region of interest in a subject under study. The system includes a magnetic pick-up device constituted by an array of fiber-optic magnetic sensors mounted at positions distributed throughout the inner confines of a magnetic shield configured to conform generally to the head of the subject or whatever other body region is of interest. Each sensor yields a light beam whose phase or other parameter is modulated in accordance with the magnetic field emanating from the related site in the region. The modulated beam from each sensor is compared in an interferometer with a reference light beam to yield an output signal that is a function of the magnetic field being emitted at the related site.

Abstract: A gluten-based food product derived from whole wheat, fortified with L-lysine and flavored to provide a food that is not only a complete protein source high in fiber and low in fat and cholesterol, but one which is exceptionally palatable. To make this product, a protein-rich mass of gluten is extracted from wheat flour. Kneaded into this mass is L-lysine and a seasoning mixture. The mass so treated is then divided into shaped units, each unit and an appropriate amount of water being sealed in a bag which is then heated to coagulate and set the treated mass to create a self-sufficient food product.

Abstract: A drawing device adapted to produce line drawings or sketches on a transparent screen on top of a case partly filled with a powder that adheres slightly to the undersurface of the screen to render it opaque. Disposed within the case are transverse and longitudinal rods operatively coupled to respective control knobs, one of which, when turned, causes the longitudinal rod to shift toward either side of the case, the other of which, when turned causes the transverse rod to shift to either end of the case. Supported at the intersection of the rods is an indexable stylus turret and carrier assembly whose carrier is slidably supported on the transverse rod and whose stylus turret which is received within the carrier, is slidably supported on the longitudinal rod whereby the position occupied by the assembly is determined by the point of intersection.

Abstract: A stereosopic (3-D) converter assembly usable in conjunction with a standard 2-D closed circuit TV system in which a video camcorder (video camera+VCR) functions to record moving images of a scene seen through the monocular lens of the video camera and to play back the recording to yield a composite video signal that is fed to a TV monitor on whose screen the images are exhibited. The assembly is constituted by a shuttered binocular optical attachment placed in front of the camera lens, a binocular electro-optical viewer through which the screen of the monitor is seen by an observer, and a controller unit for activating either the attachment or the viewer. In the recording mode of the assembly, the controller unit in response to vertical sync pulses derived from the composite video signal yielded by the camera activates the optical attachment alternately to present to the camera lens left and right eye images of the scene, this action resulting in a 3-D recording.

Abstract: A culinary implement capable of functioning as a mop to extract from an aqueous food mixture insoluble liquid fats dispersed therein. The implement is provided with a handle attached to a holder supporting a porous fabric pad formed of non-woven continuous filament polyester fibers having both hydrophobic and lipophilic properties. When the implement is used to mop the mixture, the fats dispersed therein are attracted and adhere to the pad whereas the aqueous mixture filters therethrough, thereby making it possible to free the food mixture of its fat content.

Abstract: A machine to facilitate the mounting of flexographic printing plates and for obtaining proofs thereof. The machine includes an impression cylinder supported for rotation on a fixed axis, the impression cylinder making contact with printing plates on a plate cylinder and rotating concurrently therewith to print a proof on the impression cylinder. The plate cylinder is movable from a proofing state in which it makes contact with the impression cylinder to a mounting state in which it is separated therefrom. The flexographic printing plate to be mounted is provided with registration holes and lies on a support tray shiftable from a retracted position displaced from the plate cylinder in its mounting state to an operative position in which its leading edge is parallel to the axis of the plate cylinder and tangentially engages the surface thereof.

Abstract: A sound-producing toy having a hollow body formed of resilient material, whereby when the body is depressed and deformed by a player, this action produces a honking sound. The body envelops an air-filled cavity at one end of which is an air-intake valve whose actuating element is outside the body so that when the element is actuated by the player, air is admitted into the cavity. Also disposed in the cavity is a sound producer having an air outlet normally closed by a membrane which is partially secured to the outlet so that when the body is depressed by the player, the resultant increase in internal air pressure above ambient is exerted against the membrane and causes deflection thereof to permit air to escape from the outlet. The escaping air causes the membrane to vibrate to produce a honking sound. The air expelled through the outlet creates a partial vacuum in the internal cavity which acts to maintain the body in its deformed state.

Abstract: A unitary poster assembly molded of flexible synthetic plastic material, the assembly including a rectangular backing plate whose dimensions are slightly smaller than those of the poster. The plate is bordered by an integrated frame formed of top, bottom and left and right side branches, the top branch being spaced from the upper edge of the plate to form an inlet gap. The inner walls of the branches, save for the top branch, are slotted to define a U-shaped socket for receiving the corresponding margins of a poster supported on the backing plate. To install a poster, the top branch is momentarily bent back to admit the lower end of the poster into the inlet gap and to permit insertion of the side margins thereof into the slots of the side branches, the poster then being pushed down until its bottom margin lies in the slot of the bottom branch, at which point the poster is properly mounted.

Abstract: A bubble-propelled amusement device in which play pieces are dispersed in a water bath contained in an enclosed transparent tank having on its bottom wall an air nozzle and having in the air space above the bath an air intake, the pieces normally tending to sink toward the nozzle. Below the tank is a pump assembly comprising an air chamber coupled to a player-operated bellows, the chamber being provided with an air outlet and an air inlet, each having a check valve therein. The air outlet is coupled to the nozzle so that when the bellows is actuated by the player and compressed, the resultant positive air pressure in the chamber causes the outlet valve to open to feed air into the nozzle which injects into the water bath a stream of air bubbles that act to propel play pieces toward a target, the bubbles then being discharged into the air space.

Abstract: A hypodermic syringe provided with a safety hypodermic needle and shield assembly to obviate the danger of a handler thereof being accidentally pricked by the point of the needle after it has been injected in a patient and then withdrawn, the withdrawn needle possibly being contaminated with infectious microorganisms. The assembly includes a needle-supporting hub receivable in a socket formed at the front end of a fluid chamber in a standard syringe provided with a projecting nozzle which is inserted in the hollow base of the hub to communicate with the needle. Anchored on top of the hub which serves as a pedestal therefor and surrounding the needle is a helical spring, the convolutions in the upper section of the spring forming a cone and terminating in a sheild through whose center passes the axis of the helix. The normal length of the spring is such as to place the shield in the protective mode of the assembly in front of the needle point to prevent human contact therewith.

Abstract: A variable-weight play ball having an inflatable inner bladder of elastomeric material disposed with a non-stretchable outer casing of flexible material to create a water region therebetween. The outer casing is provided with a valved water inlet through which water is introduced into the water region in an amount which depends on the desired weight of the ball. The inner bladder is provided with an air passage stem terminating in an air-inlet valve sealed to the outer casing and accessible from the ball exterior, thereby making it possible to blow up the inner bladder to the degree necessary to cause the water in the region to become evenly distributed therein to create a spherical water layer pressed between the bladder and the casing, the thickness of the layer determining the weight and play characteristics of the ball.

Abstract: A cardboard blank that is die-cut and scored to define, when the blank is erected, a unitary box having bottom, side and end walls, as well as interlockable triangular side and end flaps providing a closed cover.

Abstract: A rigid shoe tote bag formed from a single corrugated board blank that is die-cut and scored with fold lines to define interhinged twin shoe boxes in back-to-back relation, each box having a back panel with a slotted upper section forming the handle of the bag. Each compartment further includes a first side panel, a front panel and a second side panel having an extension flap which is joined to the back panel to form the body of the box. The side panels and the front panels are provided at either end with closure flaps which when folded in and locked enclose the body of the box.