US1424095A - Electric-lighting fixture - Google Patents

Description

P. L. HAISLIP. ELECTRIC LIGHTING FIXTURE.

APPLICATION FILED OCT. 1I, 1921.

1,424,095. Patented Jgly 25,1922.

Liaatto'amq UNITED stares PATENT carica.

PLINY L. HAISLIP, OFVJASHINGTON, DISTRICT OF COLUMBIA.

ELECTRG-LIGHTING FIXTURE.

ias/anos.

Specification of Letters Patent.

Application sied october ii, ieai. seriai' no. 507,059.

had therein to the accompanying drawing. This invention relates to improvements in fittings `to be used in wiring a building or apartment for electricity, and more particularly'tol fittings employed in the original wiring or in wiring a building or apartment that has been previously illuminated by gas.

The primary object ot the invention is to `furnish an improvedlittiiig designedto prevent a short circuit from causing a tire within the building or dwelling. At the present time ttings are employed, which when the insulation wears or burns from the conducting wires, permits the current to travel along the ttings and cause sparks which are the frequent means of starting a conflagration. It is the purpose of this invention to eliminate the detects in the known fittings.

Another object of the invention is to provide an improved insulating sleeve designed to support the ordinary cap which is placed at the upper end oi an electric fixture adjacent the ceiling.

lVith the foregoing objects outlined and with other objects in view which will appear as the description proceeds the invention consists in the novel features hereinafter described in detail, illustrated in the accom-` panying drawing, and more particularly pointed out in the appended claims.

Referring to the drawing: j

Figure fl is a vertical sectional view ot one ot my improved littings showing the ksame applied to a gas pipe and supporting the cap ot an electric fixture.

Fig. 2 is a horizontal sectional view taken on line 2-2 of Fig. l.

Fig. 3 is a horizontal sectional view taken on line 3-3 ot Fig. l;

Fig. -l is a detail view partly in section of one oit the sleeves which I have devised for use in connection with the original wiring of a building or apartment. i

Figure 5 is a bottom plan viewof an in-l sulating plug used in connection with the construction shown 1n Figures 1, 2 and 3.

In the embodiment of the invent-ion illustrated in Figures 1 tog inclusive, 1 designates a ceiling through which projects a gas pipe 2. VVhe'n a building formerly illuminated by gasis to be wired for electricity, the gas fixture (not shown) is removed from the gas pipe 2, and a ceiling fitting 3 is placed in the plaster of the ceiling with its nipple d surrounding the pipe 2. Then my improved insulating sleeve 5 is placed over ythe projecting` end of the gas pipe 2 and an insulating plug or cap is screwed onto the open end ofthe gas pipe. The sleeve and cap are .made ot any suitable insulating inaterial but preferably of'soine strong material capable of supporting weight. As shown, the sleeve 5v provided with exterior threads 7 which are adapted to engage internal threads provided on a ring 8 having projecting arms 9. i

The ring 8 may be adjusted vertically on the sleeve 5 by turning said ring to cause its threads to travel up or down on the threads of the sleeve, and the arms 9 are provided with threaded apertures lO for a purpose hereinafter described. i

lll/Then the sleeve 5, ring 8 and cap 6 have been placed on the gas pipe 2, the cap ll of the electric fixture may be placed in position and locked by means of screws l2 which pass through apertures in the'cap 11 and the threaded openings l() in the arms 9 and engage the sleeve 5. These screws l2 thus Patented July 25', 1922.

serve the dual function ot holding the cap i 11 in position fand locking the ring 8 to the sleeve 5, so that said ring will not revolve on saidsleeve. f y

The conducting wires 13 enter the litting 3 through an aperture 14; and pass down-` wardly through the cap 1l between the arms 9, and the wires pass out through a nipple l5 arranged at the lower end oli the cap l1.

rlllie plug 6, as shown in Fig, is preterably provided with notches 6lL in its lower edge adapted to permit the passage voit the wires 13 past the plug in a situation where the inner surface ot the cap ll abuts or nearly albuts the plug 6. i

From the foregoing" it is believed that the construction, operation and advantages of the described form of the invention will be readily understood by those skilled in the art, and :for this reason further explanation in connection with the described form is believed unnecessary. i

The construction shown in Figure Il is wei similar to that described with the exception that the fitting; or bexY 25 is placed in an apartment or building` that has not been illuminated by gas, and tor the purposes of this invention the nipple la is externally threaded to receive internal threads i prorided at the upper end portion of a sleeve 5 which is formed O' insulating material. The sleeve 5 is also provided with external threads T adapted to be engagzjeifl by a ring' t5 similar to the ring E57 and this ringl S supports the cap lll in a inanner siniilar to that described in Figures l to 3. No sealing plug such as G .necessary with this construction.

ln both einbodin'ients of the invention, it will be apparent to those skilled .in the art that the provision ot the threads on the sleeves 5, 5, permits the rings 8, 8, to be adiusted vvertically to accommodate caps l l, il, et 'arious size.' and designs. lt vill also be obvious that the provision oit the insulating; sleeves will prevent a short circuit under certain circuinstances from causiilg fires within buili'liugs where the imiln'oved fittings are installed.

lV hat l'r claim and desire to secure by Letters-Patent is:

l. An electric light fitting' including supportinl ineans, a sleeve ot' insulating inaterial carried by the supporting means and having external threads, a ring adjutably inoiiinted on said sleeve and having` interna threads engaging' the threads ot the sleeve7 a fixture cap carried by said ring7 and means accessible ilrorn the exterior olt said cap tor securing the cap to the rinv'.

2. An electric fitting includingr supportinl ineans, a sleeve ot insulating material iarried by the supporting nieans and having;- external threads, a ring adjustably mountn ed on said sleeve and h aving internal threads engaging' the threads ot the sleeve, arnis projecting 'from said ring;` and haviiig 'threaded apertures, a fixture :ap7 and screws passing1 through said cap and engagingv the threads said apertures, said screws haring` their heads arranged crctcriorly o'llr the cap.

in electric titting as claimed in claim 2, in which said ring` is provided with threaded apertures register-ingv with the aper turcs of the arms7 said screws also passing; through the apertures ot lhe 'ring and cngaging said sleeve.

fl* ln an electric lightingv ilitting', a pipe having` a threaded endl a wall bei; har ing a nipple :eairroundine' said pipe. an iusulating` cai secured to the threaded e nl o l Said `gas pipe7 an insulating); threai'led sleeve arranged on Said pipe between the cap and said nipple, a ring' l'niving; internal threads engagina` the threads ot said sleeve. and a lint-ure lap supported by said ring'.

lin an elm-tric lighting' ,fittingA oi 'the lqind detined by claim l, arms projecting lrorn said ring and harii'ifaj threadr-rd afar'- turesa and screws passingr throuell said rap and engaging said apertures.

ln testimony .rhereot l hereunlr'i alli; my sigggnatiire in the presence of two u'itni'assif-t. PLINY L. lflAlbllQil.

lWitnesses ConL VAN SANT, lvlYn'rLn 1lV ILLnxMs. r

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