US1808876A - Lightning arrester - Google Patents

Description

- June 9, 19 1. c M, W AY 1,808,876

LIGHTNING ARRESTER Filed April 5. 1 929 '2 Sheets-Shet 1 Inventor June 9, 1931. c, w 1,808,876

LIGHTNING ARRESTER Filed April 5, 1929 2 Sheets-Sheet 2 A itorney Patented June 9, 1931 UNETED STATES CURTIS MORELAN'D WRAY, OF LA. FAYETTE, INDIANA LIGHTNING ABRESTER Application filed April 5, 1929. Serial No. 352,828.

The present invention relates to improve ments in lightning arresters.

An important object of the invention is to provide a simple device of compact size,

which is adapted to be interposed between the antenna construction of the set and cable to the ground so static electricity passing into the inductance, will, in its endeavor to follow the most direct road to ground, pass through this novel device, instead of following the lines of least resistance through the radio apparatus. 7

Another object of the invention is to provide a device of this character which, be-

cause of its brief construction can be manufactured at a low cost and within the eco nomic demand of the public.

These and other objects of the invention will become more apparent to the reader after considering the invention as described and claimed hereinafter.

In the drawings:

Figure 1 represents a perspective view of the novel device.

Figure 2 represents a side elevation of the improved device, with one section of its casing removed.

Figure 3 represents a vertical sectional view through the device.

Figure 4 represents a perspective View of one of the conductor members.

Figure 5 is a perspective view of another conductor.

Figure 6 represents a perspective view of a mica sheet for separating the conductors.

Referring to the drawings, wherein like numerals designate like parts the invention includes a casing generally referred to by numeral 3, and this casing is divided into a pair of longitudinal sections 4-4, which are separated by a rectangular frame 5, interposed between the edged portions of the section, substantially as shown in Figure 2. Suitable rivets or bolts 5 serve to connect the sections together in the manner shown in Figure 1.

Extending inwardly from opposite ends of the casing are the conductors 66 which are of U-shape with a lug 7 at their respective bight portions for projection through the ends of the casing in the manner shown in Figure 1. The lugs 7 are provided with openings 8, whereby connection may be made thereto with ease.

The conductors 66 are of such length as to require their inner end portions to overlap in the manner shown in Figure 3 and between the overlapping ends of the conductors 66 is interposed a sheet 9 of mica. Although mica is specifically stated, it is to be understood that any suitable material of this character may be employed. The mica sheet is provided with pairs of spaced openings 10-10 which provide an air column between the leg portions of the opposing conductors.

vA pair of conductor bars l111 have offset end portions 12 apertured as at 13. The offset end portions 12 are disposed through the ends of the casing 3 in coincidal Telation with the lug portions 7 of the conductors 66 in a manner so that the openings 13 will register with the openings 8. The inner end portions of the bars 11 overlap each other with the mica sheet 9 interposed therebetween. The mica sheet is also provided with openings to provide an air column between the overlapping end portions of the bars 111l.

The device is to be interposed between the radio antenna and ground so that light ning will pass through the device to ground instead of passing through the receiver apparatus to ground, the lightning energy following the path of least resistance.

While the foregoing description has been in definite terms, it is to be understood that various changes in the specific shape, size, and materials may be resorted to, without departing from the spirit and scope of the invention as claimed hereinafter.

What is claimed as new is:

A lightning arrester comprising a housing, said housing comprising a rectangular frame and a pair of side plates for disposition against opposite sides of the frame, a pair of conductor elements, each of substantially U-shape, each end of the frame being provided with an opening, each conductor element being provided with a lug at its bight portion for disposition through one of the openings in the frame, the said conductor elements being of such length as to permit their leg portions to be disposed in overlap I'Fping relation, and a sheet of di-electric Ina terial interposed between the said elements. In testimony whereof I afiix my signature.

CURTIS MORELAND WRAY.

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