US932196A - Electric-installation outlet-box. - Google Patents

Description

V w. H. VIBBER. ELECTRIC INSTALLATION OUTLET BOX.

APPLIOATION FILED JAN. 22, 1909. 932, 1 96. Patented Aug. 24, 1909.

2 SHEETS-SHEET 1.

' W. H. VIBBER. ELECTRIC INSTALLATION OUTLET BOX.

APPLICATION FILED JAN.22, 1909.

Wm 9M 13 0H 48 i w n Am d2 e t n .w a P 0 6 9 1 .2 3 9 UNITED STATES PATENT OFFICE.

. -H. man, 01' Nlw LONDON, OONNEOTIGUR ASSIGNOB OI ONE-HAL! TO THE GILLITTI-YIBBIB OO., O! NEW LONDON, CONNECTICUT, A CORPORATION.

ELEUIBIO-HVBTALLATION OUTLET-BOX.

To all whom it may concern:

Be it known that I, WHEELER H. Vienna, a citizen of the. United States, residing at New London, in the county of New London and State ofConnecticut, have invented a Installation Outletnew and useful Im rovelnent in Electricoxes; and I do hereby declare the following, when taken connection with the accompanymgdrawings and Fig. 1. Fig. 3 a view in broken vertical secand .30

to wood, but also in situations tion on the line 0-11 of Fig. 1. Fig. 4 a detached view in side elevation of the threaded bushing which is insulated in the center of the cover. Fig. 5 -a sectional view on the line 'ef of 2, owing the ring-like anchor, the box an the anchor-screws. Fig. 6 a detached view of'the rin alike anchor.. Fig. 7 a sectional view 0 the fiat cover which may beused' with thebox-in place of the domical cover shown in Figs. 1 2.. Fig. 8 a view in front elevation showing the application of my invention to a rectangular outlet-box as a switch-box.

This invention relates to animprov enient in electric installation outlet-boxes, the ch- 35 convenient box constructe ject'being to produce a sim le, effective and reference to being used not only in situations where there is an opportunity of fastening it where there is no such opportuni apElied to wire'laor to plaster-board, so

With these ends in view In inventioncon Islets in the construction an combination of s Parts to be hereinafter described and pointed b out=in the .claims.

- cam out my invei tion as shown in Figs. 1 to .6 inclusive, I employ a ring-like ancher 2-brpken away on one eso astoleave .60 an opening 3 between it ends, 0%.

ends may beentered into a ho much in diame anehdrwhxeh is n this way introduced one elidfirsaaotospeak, intothespacebackof Specification 01 Letters Patent. A inbaaon filed January 22, 1909. Serial No. 413,750.

a broken ring-like anchor, I am ena designed to be usedwith particular g as when-the nlaster is ter than the Patented the laths, whether the laths be the ordinary wood laths or wire 'laths or plaster-boa rd which is used in place of laths. The cutting away of the rin on one side enables the cylindrical box 4 to e placed hard upvagainst one side of a joist, in which case the flat edge or cut-away portion of the anchor will be lined.

up with the side of the joist, though it need not make contact therewith. By em lloyling e as described to introduce it one end first through a comparatively small 0 ening in the plaster, into a space back of the ath where it form an anchorage for the box 4. Furthermore the, breaking away of a ortion of the anchor enables it to be passe over the wires and avoids the necessity of passing them through it. The said box 4 is adapted in diameter to pass readily through the anchor 2 and is furnished at its outer end with a flange 5 standin at a right angle to it. This flange is forme dial slo 6 and 7 recelvmg anchor-screws 8 and 9'made long enough to enter screw-holes 10; 11, in theanchor -2, whereb the box .is fastened tothe anchor and so he d in place in the wall or in the ceiling-as the case may be. The said flange 5 hasscrew-holes 12 and 13 receiving short screws 14 and 15 which pass throughradial slots 16' and 17 arranged op; pcsite each other in the box-cover 18, whic as shown in Figs. 1 and 2, ,isdomical in form, thou h in some situationsit may. be replaced by a at box-cover 20 having similar slots 2 1 22, asshowninFig. 7.

The domical cover 18 is preferably struck up from sheet metal and formed with an out- Aug. 24, 1909.

wardly extending tapering poly onal sleeve 23.1'ece1vmg a tape gona thimble=24 of-insulat' mate formed at its inner end with iifiimge 25 which holds it against outward movement in the sleeve 23 into which it 11'; introduced from the inside of the e 26 gonal in. gain, hava 0, 2 an 'introdii ced fi'omthe s id ia of the cover, after insulating thimble 24 receives a loo which a washer28 of insulating material is I slip 'over its roeetmg' outer endso asto rest d gbn the ouli er edgeo the outer outeren '0 t i; toform the sleeve 23 and 7 of the thimble 24.-

turned into the bushing.

Ordinarily the bottom of the box will be formed with four symmetrically arranged holes 31 through which the electric wires are passed into the interior of the box. In case all of these holes are not used they will be closed and sealed by shallow, cup-like sheet 'metal seals 32 driven into the holes '31.

These seals may be at any time re laced interchangeably 1n the holes in the ottom of.

the box according to the circumstances of its use.. 1

It should be explained that when the anchor 2 has been introduced into place, back of the lath, it is held and positioned for the introduction of the box 4, by one of the anchor-screws 8 and 9, one of the said screws being entered into one of the two screw-holes 10 and 11 in the anchor. In this way the screw serves as a handle for the anchor, while the box is being introduced into the same. The provision of the'fiange 5 of the boxwith the open radial slots 16 and'17 permits the box to be readily engaged through one or the other ofthe'said slots, with the head of this screw when the box has reached its final position. The screw is then turned sufliciently to draw the anchor and box into place after which the other screw is inserted through the other slot in the flange of the box, and then into the other screw-hole in the anchor.

In the construction shown bv Fig. 8 of the drawings, the anchor 33vis made rectangular in form and considerably smaller in one dimension than in the other, whereby it may be introduced narrow end first into an opening in the plaster smaller than the major dimension of the anchor. By preference this anchor will not be continuous but provided with an opening 34 adapting it to be passed over the electric wires or cables. The ox 35 is secured to this ring by means of anchor-screws (not shown) passing through slots 37 in flanges 38 extending outward from the ends of the box. In this modified construction the anchor is adapted to be worked through an opening in the plaster'smaller than the flatwise area of the anchor, the same as the anchor shown in the preceding figures.

On account of the polygonal I clain'ir- '1. In an electric installation outlet box, the combination with an anchor constructed in form and size for bodily insertion through an o ening in the plaster smaller in size than the atwise area of the anchor, of a box inserted into the said opening after the anchor has been positioned back of the plaster, and screws passing through the box into the anchor for holding the box in place.

2. In an electric installation outlet box, the combination with an anchor having the form of a broken ring, whereby it is adapted to be passed through an o ening in the plaster smaller in size than t e fiatwise area of the ring, of a box formed with a flange and adapted to be inserted into the said ring after the same has been positioned back of the plaster, and anchor screws passing through the flange of the box into. the anchor, whereby the box is anchored in place.

3. In an electric installation outlet box, the combination with an anchor constructed in form and size for bodily insertion into an opening in the plaster smaller thanthe flatwise area of the anchor, of a flanged box 7 having open radial slots formed in its flange and constructed for insertion into the anchor after the same has been positioned back of the plaster, and anchor screws passing through the said-slots in the flange of the box into the anchor for holdin the box in place.

4. In an electric insta lation outlet box, the combination with an anchor constructed in form and size for bodily insertion into an opening in the plaster smaller than the flatwise area of the anchor, of a box having a flange formed with open radial slots and constructed for insertion into the said anchor after the same has been positioned back of the plaster, a box-cover formed with slots and constructed to be applied to the box ai'ter the same has been fastened to the anchor, and screws passing through the slots in the cover into screw-holes in the flange of the box. I

In testimony whereof, I have signed this spe'cificationiin the presence of two subscribing witnesses. I p 4 WHEELER H. VIBBER.

' Witnesses:

MABEL' B. LEwIs, THOMAS J LUsK.

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