Abstract: A protective sleeve, particularly for human arms and legs, uses a sack-like synthetic material film with a slip-in opening. A preferably adhesive, band-shaped sealing strip is fastened at the rim of the slip-in opening over a part of its circumference and projects over the rim of the film. The strip forms a freely projecting member of such length and such surface that the ends of the sealing strip, after enclosing a body part to be covered, overlap, one adhering on the other.

Abstract: A radio-controllable spherical toy vehicle including a spherical toy body, a running mechanism, a fixing shaft, and a direction-control mechanism is disclosed, in which the running mechanism is rotatable circumferentially on the center-shaft by a driving motor, and the direction-control mechanism is swingable on the axle of the fixing shaft by a servo-motor.

Abstract: A plastic clip is integrally formed to provide a flexible finger portion intermediate two relatively rigid finger portions. It is configured to be assembled within a hand-simulating portion of a doll appendage, with the flexible finger of the clip disposed within a thumb-like component of the hand, and it has elements which permit it to be sewn in place. The resiliency of the flexible finger portion will permit the thumb to flex when an object is inserted between it and the component that simulates the remaining fingers of the doll's hand, and to return to its normal position so as to grip the object therebetween.

Abstract: The belts of a screening band have entrained cleats on one side, and on the other side have recesses into which crossrods are inserted. These crossrods are each connected by a rivet to the belt. The entrained cleats do not run over the entire width of the belt, but rather leave a flat region free in the middle of the belt, so that the rivets can pass there without regard to the positions of the entrained cleats.

Abstract: A depth sensing skid arrangement for an implement including a spring steel depth skid connected to a shank which in turn is pivotally connected to a shank support bracket including a spring trip arrangement which permits backing of the implement without damage to the skid or shank. The shank support bracket in turn is connected to a transverse beam operably connected to valve control structure for operating a hydraulic cylinder to maintain a preselected depth of penetration of earth-working tools mounted on the frame. To provide an averaging effect, two resilient depth skids are transversely spaced on the beam.

Abstract: A rotary driven elongated pointed rod member having wingnut-like projections affixed thereto. The wingnut-like projections being spaced apart sufficient distances for contacting weeds and undesired plants at interval points when the device is moved beneath the surface of the ground while being rotated. The projections grip and wind the weed about the rod and then retain the weed and its roots and carry the unwanted wood and its root system out of the soil. The projections can depend straight downwardly or can be canted to form a spiral soil entering action. Following the withdrawal of the weed the loose soil that has been pulverized and aerated is left in the hole that had been formed by the weed removing action.

Abstract: The present invention relates to a device for the insertion and fixation of an intrauterine contraceptive devide (IUD) to the uterine fundus of a female in the immediate post-partum or post-abortal period. The device comprises a thread affixed to the IUD and to a retaining member, a needle for the insertion of the retaining member attached to the thread into the uterine muscle, a protecting member for the needle, a receiving member for the IUD, an actuating member for the needle, movable with respect to the protecting member, and a locking member for temporarily locking the actuating member to the protecting member. This device extends backwards to form a gripping member, while the retaining member loosely engages the needle and an element for achieving and maintaining a traction on the thread, ensuring the cooperation of the retaining member with the needle was long as the locking member and the protecting member are not disengaged and the IUD is not released from its receiving member.

Abstract: An arrangement for mechanical measurement and for regulation of a pulling force of a tractor, has a bending-elastic element whose bending is sensed by a sensing device which acts on a lifting device for a three-point linkage of the tractor, wherein the bending-elastic element is formed as a pin which is hollow and supports one link of the linkage between two housing-fixed bearing points, and the sensing device has a gauge stick which extends inside the pin substantially between both housing-fixed bearing points.

Abstract: An agricultural planter has a main carrier frame attached to a tractor by an hydraulically actuated telescoping tongue. Individual row units are mounted on a lift frame which in the illustrated embodiment has a center section and left and right wing sections. The wing sections are mounted to the center section for independent vertical pivotal motion relative to the center section in the use position. Power locks secure the wings rigidly to the center section for road transport. The lift frame is mounted to the carrier frame by a vertical pivot post and an hydraulically powered lift linkage. The pivot post may be rotated by an hydraulic cylinder under control of the operator. In the use position, the hitch tongue is retracted and the lift frame is lowered and extends transverse of the direction of travel.

Abstract: A walking operator type cultivator comprising a rotary plow, a ground engaging member for setting a plowing depth, and a position adjusting mechanism for raising and lowering the ground engaging member. The position adjusting member is automatically controllable according to signals transmitted by an inclination sensor detecting fore and aft inclinations of the cultivator. The cultivator further comprises a mechanism for stopping the automatic control of the position adjusting mechanism which is necessary under certain operating conditions of the vehicle. As a trigger for this control stopper mechanism a plowing clutch, a propelling system clutch or the inclination sensor is used.

Abstract: A tractor-powered cultivator with powered cultivating tools, with a trailing roller behind the tools, and with upright baffles that extend at least approximately along the direction of travel, that are positioned laterally next to the outer tools to block the clods of earth thrown to the side by the tools, and that can be raised up and down along with the roller. To provide universally applicable lateral baffles for various types of cultivator, the baffles are fastened to the frame of the roller.

Abstract: Apparatus for playing a plurality of games and methods for playing the games. In a first game, a rider straddles an inflatable toy animal in the form of a bull. A plurality of ring members are fixedly secured to opposite sides of the bull, fore and aft thereof, and rope members are tied to the different rings. The free ends of the ropes are tugged by additional players of the game who are positioned outside the pool, in an attempt to unseat the rider. In another game, a second inflatable toy in the form of a horse is straddled by a second rider. The second rider tugs on a rope or ropes attached to the ring or rings of the bull in an attempt to capture the bull or unseat its rider. Another game includes an inflatable animal with a removeable tail and the object of the game is for the rider of another inflatable toy to chase the tailed toy animal and to remove the tail therefrom.

Abstract: An air rifle having a firing mechanism (12) which comprises a variable volume gas chamber (52) behind a piston (28) which moves within an outer cylinder (26) in front of a rear cylinder (36). The gas chamber (52) is defined between the piston and the rear cylinder and is sealingly closed. When the rifle is cocked, the piston is latched in its most rearward position in which the gas in the chamber (52) is most highly compressed. The trigger releases the piston latch, causing the piston to be driven forward as the gas expands in the variable volume chamber compressing the air in the outer cylinder (26) in front of the piston (28) until it exceeds a threshold which fires the pellet out of the breech. The semi-permanent charge of gas in the chamber (52) thus constitutes a pneumatic spring. A safety device is provided to relieve pressure in the chamber (52) before the firing mechanism can be dismantled.

Abstract: A reconstructable court for squash or similar sports, wherein court walls include an assembly of box-shaped modular panels including a bottom which is to be directed toward the inside of the court to form a part of the wall and an assembly flange of the panels and wherein at least a face directed toward the inside of the court is formed by a reinforced coating similar, in its composition, to a coating found on traditional courts. A method for applying a coating to the reconstructable court is also described.

Abstract: A seat suitable for use with a recreational swing set generally comprising a body of flexible material, an insert embedded in the body of flexible material, the insert having a greater stiffness than the body of flexible material to impart a form and strength to the body of flexible material, at least one strand of flexible material embedded in the body of flexible material, and connectors disposed at end portions of the body of flexible material for connecting such end portions to a pair of depending members of a swing set.

Abstract: A movable toy which automatically swings between an up position and a down position is disclosed, which includes an elongated toy body, a pair of driving wheels arranged at a bottom of the toy body, a pair of arms swingable from their vertical position to their forward horizontal position, a differential gear having an output shaft for forming a swing shaft of the arms, a driving motor and a gear train.

Abstract: The eye assembly includes two eyeball units, a socket unit for each eyeball unit and a holder unit that grips the shanks of the two socket units. The eyeball unit in each instance includes a lens having a rib extending peripherally therearound and printed artwork on its somewhat curved rearwardly facing surface providing a pupil and iris, the iris having outwardly diverging lines thereon. The lens has a curved forwardly facing surface so that a simulated eye movement is provided as a result of the refraction and magnification that occur where there is relative movement between the child and doll having the eye assembly incorporated therein. Each of the socket units includes a rearwardly projecting shank and the holder unit includes a plurality of resilient fingers that engage one of several annular ribs formed on the shank of each socket unit.

Abstract: A slalom post (1) is described at the bottom end of which an anchoring element (3) shaped as a flange (3) is provided collaborating with a protection wedge (7). The flange (3) may be moved from a non-effective position when the flange (3) is within the profile of the protection wedge (7) into an effective position when it projects beyond the profile of the slalom post. In this way, a structurally simple, easily operable and very effective anchoring of the slalom post is obtained.

Abstract: A toy automobile and a toy filling station forming a set. The automobile has a self contained power plant, including a battery and a motor. To drive the automobile, water is introduced into a container in the automobile, simulating gasoline fuel, which causes an expandable member to expand which closes a switch to energize the motor. The automobile also includes a quantity of black powder that the water mixes with and produces a black liquid that simulates lubricating oil. The filling station includes a tank of water for introducing into the automobile. The filling station also includes an air pump for pressuring the water in the tank. The air pump also serves as a standard for simulating an advertising display.

Abstract: A fish feeding plant utilizing a solar ray collecting device and a algae cultivating device installed in the sea, the lake, or the pond, etc. The plant comprises a structure made of cylinders and constructed by vertically setting up cylinders in water and connecting the respective cylinders with each other by use of horizontal cylinders, a solar ray collecting device installed on the water surface above the structure, and a culture device for cultivating algae or the like installed in water. Solar rays collected by the solar ray collecting device being transmitted to the culture device for cultivating the algae or the like through an optical conductor cable and employed as a photo-synthesis light source for the algae or the like. The culture device cultivating the algae or the like by utilizing carbon dioxide CO.sub.2, phosphorus, nitrogen, nutritious salt, etc. contained in water, and algae or the like created by cultivation and carbon dioxide CO.sub.2 being discharged into water.