US1669447A - Conduit fitting - Google Patents

Description

May 15, 192s.

J. C. BOYTON ET AL CONDUIT FITTING Filed Jan. 2. 1926 /llA/Il/Il 'llllll////// IN V ENTOR S Patented May 15, 1928.

uurrlezl)l STATE S f PATENT- OFFICE.

JOHNy C. BOYTON, OF CLEVELAND, AND WALTER H. DODDRIDGE, F LAKEWOOD, OHIO.

CONDUI'L' FITTING.

Application led January 2, 1926. Serial No.. 78,778.

This invention relates to the class of devices known as conduit fittings that are used for joining together the sections of a conduit through which electric wires are run in the wiring of buildings or other' structures.

Such fittings have openings through which access may be had to the wires for the purpose of making connections and for directing the wires through the conduits, especially about corners. Suitable covers are provided for closing the openings, and it is to improved means for securing the covers to the fittings that this invention particularly relates.

The objects of the invention are to provide simple and cheap means by which the cover may be easily and quickly secured in place on the `fitting without the use of tools, thus greatly facilitating the work of wiring a structure, and whichl permits of the removal of the cover when occasion arises. Furthermore, the fastening means is concealed within the fitting thereby enhancing 1 the appearance of the device.

The invention is illustrated in the accompanying drawing wherein Fig. 1 is a perspective view of `a fitting incorporating the invention and by means of which conduit sections disposed at an angle to each other are connected together;.Fig. 2 is a central longitudinal section through the fitting; and Fig. 3 isa transverse section on the line 3 3 of Fig. 2.

The fitting is comprised of a hollow body 1, which may consist of` a cored casting of suitable metal, and it is provided with the usual openings 2 for the passage of the Wires, the outer portions of said openings being tapped for the reception of the threaded ends of the conduit sections 3. The body has an open side 4 through which access may be had to wires entering the fitting through the openings 2, as for the purpose of connecting the wires together or for directing them Vfrom one conduit section to the other. All of this is in accordance with prevailing practice and, of itself, constitutes no part of our present invention.

A cover 5, that is preferably' formed of sheetA metal, is slidably connected to the open side lof the body 1, as by having its) convergent peripheral flange 6 :engaged with "a flared portion 7 of the body which surrounds three sides of the opening 4. It will .be

observed, especially from Figs. l and 3,

that there is suicient clearance between the i flange 6 and the flared portion 7 to permit the cover to rise a limited distance with respect to the body 1. This is for a purpose which will presently appear. Secured to the inner side of the cover, as by means of a rivet 10` is a spring tongue 11. lVhen the cover is in place., what will be termed the rear end of the tongue engages an abutment 12 that is normal to the plane of movement of the cover as it is being slid lengthwise onto the body, while the forward end of the tongue is arrangedto engage beneath a flange 13 that extends across the open side of the body inwardly from the upper end of the adjacent end wall.

In applying the cover, the flange 6 is engaged with the flared upper end of the body adjacent the right hand end thereof, as the parts are viewed in Figs. 1 and 2, the cover being 'lifted with respect to the body sufficiently to permit the passage of the tonguell and the rivet 10 across said end wall. As' the cover nears its final position it is pressed down against the b ody so that the tongue 11 will engage beneath the flange 13, and when forced to its final position it places the forward end of the tongue under tension which draws the cover firmly down against the body. The same result is accomplished with respect to the opposite end of the cover by means of the flange 6 engaging beneath the flared portion 7. The cover is held against retraction by the en- Utl gagement of the rear end ofthe tongue 11 with the abutment 12.

When, for any reason, it is desired to open the fitting, the forward end of the cover may be elevated sufiiciently to insert the end of a screw driver or other tool between the cover 5 and the flange 13 so that the cover may be forced upwardly the flange 6 yieldingm under the strain imposed upon it.

`sufficiently to pass the flared portion 7 of the cover and body, and a spring tongue secured to the inner side of the cover, one end of the tongue engaging a part of the body to prevent retraction of the cover, while the opposite end thereof, engaging beneatha art of the body, tends to hold the cover in rm contact with the body.

2. A conduit fitting comprising a hollow body having an open side and provided with facilities for attaching conduit sections thereto, a cover slidably connected to the open side of the body by loosely interengag- -ing guide parts of the cover and body, said parts permitting limited separation between the cover and body, rthe body having adjacent one end of ,its open side an abutment and at the other a shoulder spaced inwardly from' said open side, and a spring tongue secured to the inner side of the cover, one en of the spring tongue being adapted to engage the abutment thereby to prevent retracf A tion of the cover, while the opposite end of tongue, underlying the aforesaid shoulder, tends to hold the adjacent end of the cover in irm contact with the open side of the body.

3. A conduit-*.tting comprising a hollow body having an open sideand provided with facilities for attaching conduit sections thereto, the body being Hared about its open side, a cover having a convergent ange along each of its lateral edges and at one vend for loose engagement with the ared l as v body but al from at one end, the body incorporating an -part of the body whereby the cover may be vslidably engaged and interlocked with the owed a limited separation thereabutment at one end ofits open side and a meager ange extending inwardly from the upper end of its end wall opposite said abutment, and a spring tongue secured to the inner side of the cover, one end of said tongue being arranged 'to engage the aforesaid abutment to hold the cover against retraction, while the opposite end of the tongue, engaging beneath the aforesaid flange, tends to hold the d engaged-and interlocked with the body but allowed a limited separation therefrom at one end, the body incorporating an abutment at one end 4of its open side that is substan- -tially normalto the plane of said open side,

the body having a flange extendinginwardly from the upper end of its end wall opposite said abutment, and a spring tongue secured to the inner side ofthe cover, one end ofsaid tongue being arranged to engage the afore-v said abutment to hold the cover against ref traction, while the opposite lend of the tongue, engaging beneath the aforesaid flange, tends to hold the adjacent end of the cover in rm contact with the body.

In testimony whereof, we hereunto aixour signatures. l

onN o. BoYToN.

WALTER, n. Doonnmen.

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