Bench-type mechanical light generating device
First Claim
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1. A heavy-duty portable mechanical light generating device intended for operation on a supporting surface comprising:
- a housing being sufficiently large to accommodate heavy-duty internal components and to be generally portable but being inconvenient for hand-held operation so that it is adapted to operate on a supporting surface;
an electricity producing generator in said housing including a permanent magnet, a rotatable armature within the magnetic field of said magnet and a rotatable shaft attached to said armature so that rotation of said shaft rotates said armature to thereby produce electricity;
a gear train associated with said shaft for driving same, said gear train being driven by a heavy-duty coil spring connected at its outer end to a gear of said train, said coil spring adapted to be wound tight in a substantially circular plane, said spring adapted to slowly unwind thereby turning said gear to which its outside end is connected to drive said gear train for a prolonged period of time without re-winding;
mechanical control means for variably controlling the rotative speed of said generator from zero speed to the maximum rotative speed provided by said gear train; and
an electrical connector in said housing electrically connected to said generator and adapted to provide a ready attachment for the electrical contacts of a lightbulb.
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Abstract
A portable mechanical light generating device includes an electrical generator located in a portable housing. The generator is activated by way of a rotatable shaft which rotates an armature within a magnetic field in order to produce electricity. A coil spring is adapted to be wound tightly and then slowly unwind. While unwinding, the spring turns a succession of gears in order to rotate the shaft associated with the generator. As a result, the slow unwinding of the spring allows the generation of electricity over sustained periods of time.
22 Citations
4 Claims
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1. A heavy-duty portable mechanical light generating device intended for operation on a supporting surface comprising:
- a housing being sufficiently large to accommodate heavy-duty internal components and to be generally portable but being inconvenient for hand-held operation so that it is adapted to operate on a supporting surface;
an electricity producing generator in said housing including a permanent magnet, a rotatable armature within the magnetic field of said magnet and a rotatable shaft attached to said armature so that rotation of said shaft rotates said armature to thereby produce electricity;
a gear train associated with said shaft for driving same, said gear train being driven by a heavy-duty coil spring connected at its outer end to a gear of said train, said coil spring adapted to be wound tight in a substantially circular plane, said spring adapted to slowly unwind thereby turning said gear to which its outside end is connected to drive said gear train for a prolonged period of time without re-winding;
mechanical control means for variably controlling the rotative speed of said generator from zero speed to the maximum rotative speed provided by said gear train; and
an electrical connector in said housing electrically connected to said generator and adapted to provide a ready attachment for the electrical contacts of a lightbulb. - View Dependent Claims (2, 3, 4)
- a housing being sufficiently large to accommodate heavy-duty internal components and to be generally portable but being inconvenient for hand-held operation so that it is adapted to operate on a supporting surface;
Specification