US2069468A - Suspension for luminescent tubes - Google Patents

Description

Feb. 2, 1937. J. B. J. M. ABADIE 2,069,468

SUSPENSION FOR LUMINESCENT TUBES Filed Jan. 8, 1936 AAAAAMQMAQA'AKYQEQQAM A MM' Jwuwwtoo Patented Feb. 2, 1937 Q UNITED STATES PATENT "OFFlCE Jean Baptiste Joseph Marcel Abadiafl'arls,

' France Application January 3.193s, sol-n1 No,"sa,1a 'In France Ma's-ch17, 1931 a cum. (01. 171-352):

. The present invention relates to improvements influence of the conditions of use ordinary in suspensions for luminescent tubes and is a sprin s'are of short duration. continuation in part of Patent No. 2,030,491 for The lamp consists generally in a hard glass Device for applying luminescent tubes to power I outer tube [1- within which is located a tightly:

a transmission lines. wound spiral gaseous discharge tube I8 having An object of the invention is to provide'a' electrodes 19 at the opposite ends of the outer means for attaching a luminescent tube directly, tube. One of such electrodes is is connected to I to a power line, and tar this end thesuspension the power line by means of the conductor ll provides a yieldable supportadapted for use which here serves also to connect that end of the 10 with glass tubes. I l lamp to the spring I! on the frame. For'comi I A further object is to overcome the corrosive V plete insulationgoi this conductor and also to eflect of the electric couple set up by contact of fix it securely against withdrawal theouter tube a suspension device with a power cable. l1 and its arm 2! are filled with pitch 22 or the The above and other objects are accomplished like. The other electrode I8 is connected to the I in the forms of the device described herelnand leakage condenser 28 which discharges into the 5 illustrated in the drawing wherein, Hi pr vidin aground '01 the Figure 1 is a. side elevation 01' a horizontal lamp circuit. This end of the lamp is supported beacon light applied to a power. cable, with the from the coil spring ll thru the connecting bar light and insulating structure shown in section? 24 and is insulated iromthe power-line "Ill by Figure 2 is a side elevation of an application or. h lass r'p r laininsulator 25. The end 01 20 the Invention t0 a, vertical hem light, with the the tube 18 held in a metal ring 26 attached t0 the insulating structure partly broken away. 7 insulator h rin also serving as a supp Figure 3 13 an enlarged, fragmentary vi m tor the leakage condenser 23. A water shed sysing a modified hook in a section taken on the t m is p d n these la ps to prevent so- 25 line 3.4 of m 1, and cumulation oi a'shortcircuiting water film on 25 Figure 4 is an enlarged fragmentary vi w the outside of the tube. This system comprises showing a modified clamp in a section taken on in this case, h p h ds 01 covers 21 over t line H of Figure 1, the connectors between the power line and the Beacon lamps of the type contemplated-are of tube, n he collar 28 On the Outer tube I1.

30 use in indicating the location of charged'power These members are Pr vi ed wi h W 80 lines and find particular application in. pointing lent surface w ich breaks u the mm or moisture out such lines on air routes and near landing and destroys the 8110115 circuitn 1 The Imps are t t high tension It hasbeen learned from experience that where ous discharge type, as explained in the parent. 8 lamp suspension of one metal 118 0n D w l '1.

gppucaflbn, hanging directly on t power 5 cable of a different metal a destructive electro- 5 ble and using for a ground connection an air chemical action 18 set 9 sulting in damage to i discharge condenser some body of lower pothe cable. The present invention contains a tentlal, such as a parallel power line of low tenemedy this by pmvidmg 510m glllamp toll. thle suspensiontiorlthewsiame fiieitsal a:

40 e ca e w erever prac ca. ere no 40 Referring now to mm In designates a practical to form the hook or clamp of this metal power cable on which is hung a suspension frame it is advantageous to insert into the portion composed of hooks II and connecting bar l2. toucmn g the cable a liner .of the metal or the The hooks are free slide and tum on the cable. Figures 3 and 4 illustrate the use or such ble, the extent of the motion being limited by a Imam The liners are merely inserted in the yielding attachment to the cablethru a clampordinary parts of t suspension as they are aping member I! which is fastened on the cable plied to the power cable by means 01' a clamping bolt ,and coil springs Figure is a detail showing a modification 01 connecting the clamping member to the P- the hook n. These hooks are bent by hand to posite ends of the connecting bar The l conformto the cable in and so make a snug no. 50 structure is susp d d from t pp sit nds f A lining strip 29 is inserted in the bend or the the be edditlene-l yieldable p i n in hook to avoid setting up a couple between the P v y the 11 Coil p n s The Sprin s hook H, which is usually of a hard metal such I I and r P ly m 0 n in x i as iron or steel and the cable in which will ordi- 66 ble or difllcultly oxidizable material as under the narily be or copper or aluminium. The liner 2. s5

will be of the same material as the cable, so that the couple will be between the hook and the liner and the power cable will not be subjected to the corrosive effect of the couple. It

I may, in some instances, be practical to make the hooks of the same material as the power carrier and in such a case no lining is needed.

The clamping member If, as seen in Figure 4, consists of two plates 30 bent to fit the power 10 cable II and held together at their lower edges by suitable bolts or rivets 3| which serve also as fastenlngs for the springs ii. The upper edges of the plates are held together by a clamping bolt it. The clamp II, as the hooks II, is pro- 15 vided in this modification with a lining strip 29 to break up the couple at the cable surface.

Figure 2 illustrates a form of the suspension adaptable to vertical beacons. The lamp comprises the outer tube H, the spiral discharge tube II", the electrodes II, the leakage condenser 28' and the protecting cover 32. The cover 32 serves to protect the condenser 23 from short eircuiting water and is provided with a watershed surface. In this form the'suspension com- I. prises two clamping members 33 to which is secured the tube holder 3|. The clamping members 33 are similar to the clamping Plate I4 and are constructed of front and back' plates connected by bolts or rivets. If the material of the 9 clamp is different than that of the power cable II, the liners I! will be inserted to break up the couple at the surface of the cable.

With reference again to the suspension in Figure 1, it will readily be seen that the light sus 35 pended is completely yieldable. Under the force of wind it can swing about the cable and can also slide along the cable in either direction. The cheokingaction of the springs is yielding and free from shock which would tend to fracture the glass tubes. In general the use of these beacon lights is such as to subject them to considerable strain from wind and storm. High tension power lines are usually high above the earth and run through open country being therea by exposed in a particular manner to the effects of the weather.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of, this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims:

1. A device for suspending beacon lights from power cables comprising a frame, means for movably mounting said frame on the cable, means fixed on the cable, yieldable means for connecting said frame to said fixed means for restricting the extent of movement of said frame. light holding means, and yieldable means for 5 connecting the light holding means to the frame to permit further movement of the light beyond the extent of movement of the frame.

2. A device for suspending beacon lights from power cables comprising a bar parallel to the 10 cable, spaced hooks rigid with the bar and hooked on the line for movably securing the bar to said line, a checking clamp fixed on said cable intermediate said hooks, springs connecting the ends of the bar to said clamp to hold said bar yieldingly from movement, and further springs at the opposite ends of the bar to support the light.

3. A device for suspending .beacon lights from power cables comprising a frame having a bar parallel to the cable and spaced cable engaging hooks on the bar bendable to the shape of the cable. to support the frame movably from the cable, a clamping member adapted to be fixed on said cable, yieldable connectingmeans between said frame and said member to limit the extent of movement of saidframe, and light holdingmeans on the frame.

4. A device for suspending beacon lights from; power cables comprising a frame having a bar parallel to the cable and spaced cable engaging hooks on the bar bendable to the shape of the cable to provide a movable support for said frame, means'including yieldable connecting means between said frame and said cable yieldably to restrict movement of the frame on the cable, and light holding means on the frame.

5. A device for suspending beacon lights from power cables comprising a frame, means for movably mounting said frame on the cable, means 40 including yieldable means for restricting the extent of movement of the frame on the cable, light holding means, and means for yieldably suspending said light holding means from said frame to permit yielding vertical movement of the light 4 and additional horizontal movement thereof beyond the extent of movement of the frame.

6. A device for suspending beacon lights from power cables comprising a frame, movable holding means on the cable adapted to hold said frame movably on said cable, fixed means including an elastic connection on the cable' for yieldably restricting the extent of movement of said frame, and light holding means on said frame.

JEAN BAPTIS'I'E JOSEPH MARCEL ABADIE. 5g

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