US1667025A - Outlet-box hanger - Google Patents

Description

April 24, 1928.

C. E. BOWERS OUTLET BOX HANGER Filed Oct. 21. 1925 IN VEN TOR.

Cmu0 B o WERS A TTORNE Y.

Patented Apr. 2 4, 1928 UNITED *s 'rAr -is,

. CLAU n ownns. or Los ANGE EsicALIFoRnIA.

3 OUTLET-BOX HANGER.

Application filed October 21, 1925. Serial No. 63,874.

-This inventionrelates toa new article of manufacture, and it comprises a strap 110Il trance of conduit pipes to the knock-out openings of the outlet boxes; third, to provide a hanger bar for adjustably supporting lengthwise of the bar outlet boxes in such an operative position relative to the ceilings attaching ends to'form a portion disposed at and walls of rooms'that when the same are plastered the outer edge of the boxes will be flush with the finished plastered surface.

Briefly the invention consistsof employing a fiat metal barbent-intermediate its substantially right angles thereto, a clamping yoke being provided in connection with the outlet boxes for adjustably securing in rigid relation the boxes to the bar.

In the drawings attached hereto, and forminga part of the specification;

Fig. 1 is a plan view of a hanger bar secured between a' building studding showing an outlet box securedin place thereon..-

Fig. 2 is a side elevation 01": the above. Fig. 3 is a transverse section through the hanger bar taken on line 3-3 of Fig. 2.

Fig. 4 is an enlarged transverse section through the hanger bar and outlet box secured thereto, taken on line H of Fig. 2.

Fig. 5 is an enlarged top planet the bar and the outlet box, the clamping yoke being partially broken away to more clearly disclose the bar seating means.

In the drawings, 55 indicates ceiling joists, or studs of a buildingstructure, that are generally spaced apart sixteen inches on centers and to which the hanger bars are see cured. The hanger bar 6 preferably consists of a flat metal strap approximately five eighths of an inch wide and twenty .inches long provided with a plurality ofopenings 7 in order that the bar may be secured by nails or other suitable securingmeans to the outer faces of the joists or studding 5, as clearly shown in Figs. 1 and 2 of the drawing.

The bar 6 is provided supporting portion 8 between the ends of the angles to the supporting portion 8. other end 16 of the supporting portion is their knockout openings.

with an outlet box.

bar, and this portion isdisposed so that its outer edge will contact with the outer sur- 7 iface-fotthe top wall 10 of the outlet box 11 when it is secured thereto'as shownin the various. views ofthe drawing. At-the end 12. oi. the boxflsupporting portion 8 thebar is bent asv at 13' to one. side of the axis of the supporting portion 8, and is again bent -as at= '14 to form an attaching portion 15,- whose fiat'surlace is disposed at substantially right bent as at similarlyto the bond 13 but in the reverse direction, and is again bent as at 18, to form an attaching portion 19 of .a

surface being disposed in the same plane as said portion. By bending the hanger bar in the above described manner it will be apparent that the bar will Iofler no obstruction to The length greater than theflportion 15, its flat the passage of the metal conduits 21 from either'side and in line with the longitudinal axis of the bar into the outlet boxes through The outlet box here shown is of usual form consisting of a top wall 10, side W311S25 arranged in octagonal formation, the said walls, being provided with the usual knockout open ings 26. Top wall 10 in addition tothe knock- .out openings 26 has a centrally disposed opening 27, in which is disposed a tubular nipple 28 exteriorly threaded on' its lower end for the reception of a hickeyconnectionfnot shown). This nipple is designed to be used in connection with outlet boxes when li 'hting fixtures are-connected thereto, and when 7 no fixtures are used in connection with said boxes the nipples may be readily. omitted. The upper end of the nipple has an external flange 29 for thepurpose of maintaining the nipple in position in the opening 27, and this flange is provided with a pair of diametrically disposed notches 30, 31, for receiving the lower edge of the" supporting portion -8 of the hanger bar when the box is secured in position.

By providing notches 30, 31,.in I

the flange of the nipple 28, the lower-edge 1 engage the same and prevent a turning ture is secured thereto. a 1

of the supporting portion 8 of thebar will I In order to maintainthe box in clamped. I

relation'to the bar 6, a yoked clamping member 32 is provided. I This member has a transversely disposed recess 33 formed intermediate its ends that fits over and engages the upper edge of the bar 6, the ends 34: be-

ing secured to the top Wall of the box by screws and nuts 35, the heads of the screws being disposed within the box in order that the workmen may readily manipulate the same when assembling the box in position conduits may approach or extend from the outlet box :any desired direction.

The czadjnfistment of the outlet boxes along the supporting portion 8 is readily accomplished by merely loosening the screws 35, the yoked clamping inembe-rrigidly securing the box against movement when the screws tightened.

lVilmt 1 claim is: r

A hanger bar for terminal boxes oomprising a strap metal bar having aterminal box supporting portion intermediate its ends said bar being bent downwardly atthe ends of the supporting portion and to one side of the space that maybe occupied by a conduit, the end of each bend being again bent to form attaching portions extending parallel to the supporting portion, the surfaces of said attaching portions being disposed at substantially right angles towthre surface of the box supporting portion, whereby the at taczhimg pout-ions will, be. disposed out of alinement with the box supporting portion of the bar. c I

In witness that 1 claim the foregoing I have hereunto subscribed my name this 8th day 011? October, 1.925. a

CLAUDE E. Bo ERs.

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