Abstract: A device for evaporative cooling of large masses of air suitable for cooling structures utilized to shelter commercial animals, such as cows and the like, includes a member having a gas inlet, a gas outlet and a hollow interior extending between the inlet and outlet. A fan and motor are associated with the inlet for moving air into the inlet creating an air stream within the interior of the member. A plurality of vanes are located within the interior of the member for introducing a torsional component into the air stream passing through the member such that the air stream moves through the member in a spiral pathway. As the air stream spirals through the member, a spray of water is introduced into the member. The spray becomes incorporated into the spirally moving air stream to reduce the temperature of the air stream. After exiting out of the outlet of the member, the air stream is directed toward the animals of commercial interest to cool both the animals and their immediate surroundings.

Abstract: A magnetic amusement device incorporates a housing having a first and second magnetic member movably mounted on the housing. Each of the first and second magnetic members are capable of moving in a pathway with respect to the housing. The pathways of the two magnetic members are located in association with each other such that there is a point of association between the first and the second magnetic member. A ferromagnetic object is utilized in association with the first and second magnetic member such that the ferromagnetic object is capable of being associated with one of the first or second magnetic members as that one member moves in its pathway and when the first and second magnetic members are located at the point of association of the members the ferromagnetic member is capable of becoming disassociated with one of the members and becoming associated with the other of the members.

Abstract: A Sarrus linkage is a type of folding linkage or structure in which two opposed links are connected by two sets of connecting links, each of which sets includes two separate links. The links of such a linkage are hinged together in such a manner that the entire linkage will fold and unfold as any part of the linkage is moved with respect to the remainder of the linkage. By providing a control link which is pivotally connected to one of the opposed links and a motion transmitting link pivotally connected to the control link and to one of the links of one of the sets, a folding structure can be obtained which can be employed for a variety of useful purposes. Best results are obtained when two of the motion transmitting links are employed, one of the motion transmitting links being pivotally connected between a link of one of the sets and the control link and the other of the motion transmitting means being connected between a link of the other of the sets and the control link.

Abstract: A toy vehicle which is capable of changing both its size and shape has a compound vehicle chassis having a first and a second chassis member. The chassis members are movable with respect to one another. The chassis members are connected together such that they can be moved with respect to one another reversibly between a first position and a second position. The body of the vehicle has at least two independent parts. At least one of these parts is movably associated with one of the chassis members and is movable with respect to both the other of the parts and the chassis member it is associated with. The spatial relationship between the body parts is changeable in conjunction with movement of the chassis members from one of the positions to the other of the positions.

Abstract: A sound producing device for a toy includes a base, and rotatably mounted on the base a rotating member. The rotating member is capable of rotating both clockwise annd counterclockwise. A member is located on the base adjacent to the rotating member such that in response to rotation of the rotating member in a clockwise and counterclockwise direction, respectively, the rotating member contacts and engages the member and moves the member in a first and a second direction, respectively. A noise emitting mechanism is also located on the base and is operatively associated with the member. The noise emitting mechanism is capable of emitting at least two different types of noise.

Abstract: Semi-permeable, porous membranes useful as filtration and reverse osmosis membranes can have or can consist of a porous layer of a hydrophobic polymer rendered hydrophilic at its surface by the presence of a surfactant containing both hydrophobic and hydrophilic groups, the surfactant being bonded to the polymer. Such a membrane may be made by quenching a previously made dry membrane in a solution of the surfactant and then banking the membrane. Such a membrane may also be made by contacting a membrane manufactured by quenching a dope of the hydrophobic polymer with such a solution of the surfactant prior to the membrance being dried after being formed by quenching. Such a membrane can also be made by forming a dope of the hydrophobic polymer and the surfactant and then quenching the dope to form the membrane, this quenching serving to contact the membrane with the surfactant as it is being formed.

Abstract: An electric soldering iron having an elongated handle with an electric heating element attached therein and including a removable tip member located to receive heat from the heating element and a holding member to hold the tip relative to the heating element is improved by forming said heating element as an elongated flat blade heating element having a elongated flat planar heated surface. The heating element is so located in the handle to extend outwardly from the handle. The tip member includes a body having an elongated flat planar heat transfer surface which fits against the planar heated surface of the heating element and receives heat therefrom. The tip member further includes an operative tip extending away from the remainder of the tip member. A retaining tube detachably secured at one end to the handle fits over the heating element and tip member and except for its operative tip and maintains them in a fixed relationship with respect to each other and to the handle.

Abstract: A device for producing a random output for use in conjunction primarily with games includes a housing having a first and second wheel each independently mounted within the housing and capable of rotating with respect to the housing. A portion of each of the wheels is exposed outside of the housing such that it can be contacted against a surface and each of the wheels independently rotated with respect to the housing as the housing is moved with respect to the surface. An indicating member is mounted on the housing and is capable of moving between an indicating and a non-indicating position. A first and second control component links the indicating member to the first and second wheel respectively. Depending upon the location of the first and second wheels, the first and second control components both have a release position and a lock position. When both of the control components are in the release position, the indicating member will move to the indicating position.

Abstract: A nasal cannula structure capable of being adjusted so as to fit comfortably relative to the nose of a user can be constructed so as to utilize an elongated tubular conduit held by a suitable support so that a portion of the conduit extends beneath and adjacent to the nostrils of the nose of the user. Two separate, spaced holes are provided in this portion of the conduit. Each of these holes is covered by a sleeve which fits closely around the exterior of the conduit in such a manner there is no gas leakage between the exterior of the conduit and the interiors of the sleeves and in such a manner that the positions of the sleeves relative to the conduit can be changed. These sleeves carry small tubes which are in communication with the holes in the conduit and which also extend into the nostrils of a user.

Abstract: A hydrophilic surface can be provided on a hydrophobic polymer surface by contacting the hydrophobic surface with a solution of a hydroxyalkyl cellulose and a perfluorocarbon surfactant in water or a mixture of water and one or more aliphatic alcohols so as to form a layer of the solution on the hydrophobic surface and then heating the surface coated with the layer so as to remove the solvent, so as to form a bond between the cellulose and the hydrophobic surface. This results in the formation of a hydrophilic surface coating a layer on the hydrophobic surface. Hydrophilic surfaces as are created in this manner are primarily intended to be utilized on polysulfone surfaces in semipermeable membranes such as are utilized in micro- and ultra-filtration.

Abstract: A juggling toy includes a housing and a movable member movably located on the housing. A portion of the movable member serves as a juggling object. The member moves with respect to the housing such that the object is capable of reciprocally moving in an arcuate pathway with respect to the housing. An impulse member is located on the housing in association with the movable member. The impulse member is capable of interacting with the object in at least two points in the arcuate pathway of the object. Each of the interactions of the impulse member with the object are capable of at least inhibiting movement of the object in its current direction of travel and further capable of initiating movement of the object in the opposite direction of travel. The object is reciprocally moved in the arcuate pathway by alternately contacting the object with the impulse member to change its direction of movement.

Abstract: In a process for decontaminating contaminated metallic scrap, an oxygen bearing hot gas stream is passed into the inlet end of a container and is discharged from an exit end of the same container. The decontaminated scrap is loaded in the container at the inlet end. Concurrently the scrap is (a) moved from the inlet end to the exit end, (b) mixed and agitated within the interior of the container, and (c) during the mixing and agitation contacted with the hot gas stream moving through the interior of the container. The contact of the scrap with the hot gas stream is under conditions essentially capable of inhibiting flaming. By virtue of the contact with the hot gas stream, heat from the hot gas stream is transferred to the scrap, which lowers the temperature of the hot gas stream while raising the temperature of the scrap.