Abstract: A snag-proof safety fishing lure includes a J-shaped hook having a barb at a curved end and an eyelet at the other end. A shield is pivotally connected to a shank of the hook below the eyelet to cover the lure when it is not submerged. When the hook sinks, submersion of the shield is limited to effectively lift the shield from the sinking barb. When the lure is lifted from the water, the weight of the shield causes it to be lowered onto the barb, effectively covering it to prevent snagging.

Abstract: Apparatus including a mixing chamber is installed between a standard carburetor base and the intake manifold of a gasoline engine. The mixing chamber includes an air inlet port for admitting a controlled amount of outside air into the mixing chamber and a gasoline vapor port for admitting gasoline vaporized externally of the carburetor into the mixing chamber, a carburetor inlet port for receiving a mixture of air and partially vaporized gasoline from the carburetor throat, and an outlet port through which a mixture of all the gases exhausts into the intake manifold. The carburetor includes a first throttle valve for controlling the air amount and partially vaporized gasoline passing into the mixing chamber. A second throttle valve controls the amount of mixed gas drawn through the mixing chamber outlet port into the intake manifold. A linkage connected to the automobile accelerator cable opens the second throttle in response to initial accelerator displacement.

Abstract: A seed singulator uses two opposing surfaces, one of which has a groove extending across it dimensioned to receive seeds in a single file. The two surfaces are moved relative to each other, with the groove having an angled relationship of less than 90.degree. with the relative direction motion of the two surfaces. Variation of the angle controls spacing between seeds independently of the velocity of relative movement between the surfaces. The surfaces are preferably flat with a centrally disposed seed containing area and the groove extending from that area to the periphery of the surfaces for discharge of the seed. In this form, the relative motion between the surfaces is preferably rotary to provide continuous operation.

Abstract: An automatic seed planter which includes an elongate, upwardly-opening V-shaped trough with front and rear ends defining a longitudinally extending, upwardly opening seed-conducting channel, a seed receiving chamber at the front end of the trough, elongate guide means in the chamber overlying the channel to pass seed from the chamber downwardly and longitudinally rearwardly into the rear end portion of the channel, means to vibrate the trough and cause seed in the chamber to migrate past the guide and into the channel at a predetermined rate, and a seed discharge opening at the rear end of the channel.