Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1981-09-23
1984-01-17
Grimley, A. T.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
174 52R, 248175, 361428, 361429, H02B 102
Patent
active
044266740
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a displaceable, electric distribution device for building sites or similar, comprising a main section holding current distribution equipment, other equipment and/or instruments.
Displaceable or portable, electric distribution devices for building sites are previously known. For example, there has been suggested a cabinet-like device provided on four legs. However, such cabinet-like devices are generally very heavy, and very often two men are required for the displacement thereof. Besides, such cabinets can easily overturn in case somebody should hit them, which could involve damage of the equipment. If the device is located outdoors, the equipment in such an overturned or tilted device can easily be further damaged, due to rain or other moisture entering the cabinet.
Further, such devices require a relatively flat base to be erected upon, and the manufacturing thereof is relatively costly.
An object of the present invention is to give instructions for a displaceable, electric distribution device, which aside from offering an excellent protection for the current distribution equipment against bumps and impacts, also allows for an easy access to the equipment.
Another object of the invention is to arrive at a device which does not depend on a completely flat base, but which, even if overturned, offers the distribution equipment the best possible protection against bumps and impacts, as well as against water spray and rain.
Still another object of the present invention is to give instructions for a device which can easily be moved or displaced at the site itself, the device after the displacement adopting a correct position for use.
A still further object of the present invention is to give instructions for a device which is inexpensive and simple to manufacture, and which can easily be stacked one upon the other and thus easily be expanded to larger, compound, compact units, in which the main sections constitute the main components which can easily be replaced according to the demand.
In a device of the type stated in the preamble, these objects are according to the invention achieved in that the main section is mounted in a rack, which when the device is uninfluenced by outer forces, assumes specific positions for use, but which by means of relatively small forces can be displaced by rolling the rack.
In an appropriate embodiment of the device according to the invention, the rack may comprise two substantially equal sets of rockers, which are arranged parallel to each other on either side of the main section and attached thereto, each set of rockers on the one hand being provided with approximate semi-circular portions allowing for rolling of the rack, and on the other hand between the approximate semi-circular portions being provided with portions upon which the device in an uninfluenced condition will rest to assume positions for use. Such resting portions of the rockers can be formed by portions having larger radius of curvature than the approximate semi-circular portions, the rockers then having an oval or ellipsis-shaped design, or the resting portions of the rockers can be formed by inwardly bent rocker pieces forming points of supports for the positions for rest or use of the device.
The mains section itself, to which the rack is attached, can have any suitable shape. For example, the rack can be attached to a tube-shaped main sections, the centre axis of which being parallel to the plane extending through the respective rocker sets of the rack. Alternatively, the rack sets and the main section may be provided in such a manner relatively to each other that the axis of the tube-shaped main section is perpendicular to the plane extending through the respective rack rocker sets.
In order to enable rolling of the device for the movement and displacement thereof, the rockers must be so provided that the main section is provided inside the circumference thereof. When at the same time providing the rockers so that the planes extending therethrough also lie outside the main s
REFERENCES:
patent: 1369742 (1921-02-01), Halpin
patent: 2756368 (1956-07-01), Gross et al.
patent: 3050207 (1962-08-01), Oxenham
patent: 3457462 (1969-07-01), Gargala et al.
patent: 4095871 (1978-06-01), Holte
Grimley A. T.
Thompson Gregory D.
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