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Method and apparatus for starting a model vehicle on a race track
What in claimed is: 1. In a track section for interconnection with adjacent track sections for guiding a model vehicle including an elongaged track section body having a ...
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Toy track presenting interference to passage of toy vehicles thereon
OF THE PREFERRED EMBODIMENTS Now with reference to FIG. 1, the single track segment 11 has a floor 15, walls 16 (the more remote wall being partly broken away at 19 for ...
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Intra-uterine contraceptive device
It is, therefore, an object of the present invention to provide an improved and novel I.U.D. device, which has superior physiological characteristics despite its easy ...
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System for predicting laser end-of life from the power vs. current curve of the diode
It is observed that the slope of the power-current curve for a semiconductor laser diode changes as the diode ages. However, the inventors have also observed that the ...
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Screen adapted to be placed in front of a hearth fire or other source of radiant heat
According to the invention the object aimed at is to provide a screen, e.g. a fire-guard, having the features mentioned above of the screen disclosed in the noted E...
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Multiple magnetic transducer head, particularly for use with multi-track video tape recording apparatus
I claim: 1. Multiple magnetic transducer head arrangement, particularly for use with multiple track magnetic tape apparatus, having a plurality of magnetic transducer ...
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High speed, low power consumption pickup head position control device in an optical type disc reproducing device
It is, therefore, an object of the invention to provide a pickup head position control device in an optical type disc reproducing device capable of readily detecting a ...
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Apparatus for driving objective lens in tracking direction
The present invention has for its object to provide an improved apparatus for driving an objective lens in a tracking direction which apparatus can avoid the drawback of ...
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Optical scanning unit for projecting a beam onto an optical record carrier with positional control using sets of three coils with each set connected using two amplifiers
What is claimed is: 1. An optical scanning unit for controlling and directing a radiation beam towards recording tracks on a surface to be scanned of an information ...
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Optical lens vibration control for optical information recording and/or reproducing apparatus
An object of the present invention is to provide an optical information recording and/or reproducing apparatus wherein an access to an objective track can be made within ...
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