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Publication numberUS933661 A
Publication typeGrant
Publication dateSep 7, 1909
Filing dateMar 24, 1908
Priority dateMar 24, 1908
Publication numberUS 933661 A, US 933661A, US-A-933661, US933661 A, US933661A
InventorsHenry T Paiste
Original AssigneeHenry T Paiste
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Wall-cabinet for electrical apparatus.
US 933661 A
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Description  (OCR text may contain errors)



Patented Sept. 7. 1909. 2 SHEETS-811331 1.



APPLIOATIOH nun MAR. 24, 1908.

933,661 Patented Sept 7, 1909.




neetfleanon 01' Letters Patent. pplication filed March 84. 1808.

To all whom it may concern:

Be it. lcnown that I, HENlgY T. PAIB'PE, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Wall-Cabinets for Electrical Apmratus, of which the. following is a spec] cation.

()ne ob c-ct of my invention is to provide a boxellhe containing structure of improved construction which ma be utilized tor the reception of such eet'rical devices as switches, fuses, distributing panels and the like. and which shall have its parts so conto permit of it being convenientl v adjusted as to its size.

I I further desire to rovide a sectional wall cabinet consisting ot two end sections and any number of intt-rniodiate sections, sode signed as to be of relatively inexpensive con- Hll'ltt'lltlll and vet. bc capable of being quickly ttriftPlniJllLl to make a tight. substantial cabinet or containingbox.

Another object of the invention is to provide a box ofthe abovenoted construction with means whereby its outlct openings, when not desired for use. may be tightly closed and yct. at any time be opened for the insertion of insulating bushings or conductor-carrying conduits.

'lhtsc and other advantu rcouswnds curc as hereinafter set forth, had to thc acconipairviug drawings in which.

Figure l is a plan of a' wall constructed according to my invention. and having in this case two intermediate units. Fig. 2 sbowinin Fig.- 1; Fig. It is a side Fig. *l is pcrspcctivc view of ouc of the end units; Fig. :3 is 0110 of the detached pcrspcct ivc stitutine the removable and adjustable sections devised for certain of the outlet 0 eninns. and Figs. 7 and S are rospcctivcl i' a plan and a one sidc of my improved cabinet. showing the tittllt'ld'ltlfilltQ platc in position to mnt'l' tlic outlet.

in the above drawings and sclll two substantially similar l5-li two intermediate units. similar to each other and which may be util izcd in any desired number of any required length. made of pressed shcct metal. having! a botreprocessed along the rct'crelnrc being cabinet or box 5 pit-cc a,

is an cud clcvution ot' the cabinet elevation;

'l'rce ot' the screws. a perspective view of l iutcrlncdiatc units; Fig. 6 is u view of the parts 011- I trout clcvntion oi a portion aif P end units and whu-b are also to form a box Each cnd unit is I i tlush with thvupper fi tccjg fdhe tom section i an upwardlv cvtcnding cud- H;

Serial No. 422,594.

section a, and two whole being held together and properly stifilened by a pair of corner pieces a. While the side sections a extend to the full height of the box or cabinet, the end sectiona is side sections a";

edge is provided circular openin s, as shown in Fig. 4, which, with semi-circu ar 0 enings of the same size form in a removalile end piece a" are desined to receive the insulating bus ings or c nduit ends through which electrical conductors enter the box.

In the present instance there are seven of the above mentioned openings at each end of the box and it will be noted that the section a" is conveniently removable, though capable of being rigidly held in place when desired. To this end each of the corner pieces a is reuppcr portion of its edge n'eal'csl the section a" to an extent sufficient t permit the inner surface of said section to lower edge of the section a" a number of struck-up lugs a" designed to engage the inner and outer faces of the end sectioirrr so as to assist in preventing the section a" from being forced in or pulled outwardly beyond its proper position. Each of the upper corners of the section a is pro vidcd with a key-hole slot a for the reception of a screw a" mounted in the corner it bcing thus possible to rcuiovc the cud section ft by loosening said screws and at'tcr raising it a distance equal to the length of the slots, moving it inwardly until it; is

Each of the corner wardlv cxteudlng lug, (1 whereby the cabinet to a suitable support and in ad dition has an inwardly extending lug a for the reception of a base late or cover. Said corner pieces are rigirly hold to the cod units of the box by a series of bolts, as shown, and in addition havc their lower cnds cxt'cndcd, as indicated at u'", to form feet:- whcrcby the main portion of the box may be ln-ld away from auyadjarcnt surface.

The cdgot' the bottom section a" nearest the intermediate its lengt i, a projecting offset,

sip-nod totit under the button/peril to b of said unit so as tii permit its i'ppc'iil'lltacc to be it atom sec- Patented bept. 7, 1909..

unit B has, for one-half of,

' of the slot Similarly, from Fig. 5 it will'be seen that each intermediate unit has, for half the length of one of the edges of its bottom section, an offset extension b and on itsother bottom edge a second extension I) along the opposite half thereof; the construction be ing such that the extension 6 fits under the body section a and, with the extension a, completely covers the joint between the two parts 6 and a of said two sections.

The free vertical edge of one of the side sections a of the end unit A of the casing has an offset extension at and is designed to fit outside of the adjacent edge of the side sections 1) of the intermediate unit; each of said intermediate parts thus having one edge of each of its vertical sections plane and the other ofl'set as indicated at I). Said oti'sets occur on opposite edges of the two side sections so that each intermediate unit matches or fits not only with the end units of the box but also with other intermediate units to make a complete strongly-braced container. The joints between these units are almost completely covered by the otfset extension, and in each instance bolts or screws are pro vided whereby the various units are connected to each other.

In order to provide suitable outlets for bushings or conduits in the side sections of the units A, B and A, I provide in each of them any desired number of relatively wide vertical slots or recesses, the vertical sides of which are otl'sct or shouldered, as indicated at I), while the bottom of each recess has a semi-circular outlet of greater or less diameter, as may be desired. For closing each of the recesses in these end sections 1 provide two plates C and D held together by a screw d. The first of these plates has a semi-circular recess or indentation c at one end and has its longitudinal edges otl' set as indicated at c. The plate D has a semi-circular recess d at one end and a semi-circular projection d at the o posite end, said recess d being of the same diameter as the recess in the bottom in each of the side sections of the units B, A, etc.

\Vhen itis not desired to utilize the openings in the side sections, the two plates C and D are ut together in the positions indicated in Figs. 4 and 5; that is to say, with the semi-circular recess c of the plate C down and the semi-circle projection d of the plate D fitting into the similarly shaped recess in the bottom of the slot: the plate 1) being on theiinside. In order to retain the lates ri idly in position, the screw dmay e tight y set up, and to further revent their dislodgment I make the plate I) slightly shorter in length than the plate C so that its upper edge falls below the ii-ppe'r edge of the box. I also press inwardly -a short length I) of one of the offset edges b so that when the two plates are tightly held together i ,1 r, their-screw d, they cannot be moved'u wardl owing to the obstruction presente by this small lug.

When it is desired to run an electrical conductor into the box through one of the side sections thereof, the movable closure in the nearest slot. thereof is loosened and the plates C and D consti-- tuting such closure are removed. After the conduit or bushing for the conductor has been properly mounted in the bottom ofthe slot of'the side section, the plates 0 and D are replaced, although in this case the plate D is turned on the screw (5 through an angle of 180, so that the two recesses r: and ti co-incidc with one another and the bushing, bein of the proper di-i;

as a pivot screw (1 of the rev umetcr. is rigidly held in place after the screw (1 is again set up. h From the above description of the preferred arrangeuu-nt of parts it will be noted that the main units of my box maybe con-' vcuiently formed by the use. of butt-W0 dies one for the end units and one for the inter mediate units. As is obvious, the cost of the construction is relatively low since it is possible to make the parts out of pressed metal and inasmuch as the box may be made 0 any desired capacity simply by varying the number of intermediate units used, it will be seen that it may be employed-t0 great advantage in many instances.

Much trouble has hitherto been experienced in structures of the general type to which my invention belongs, owing to the fact that the bushing or conduit'openin s in' the sides or ends were not designed as-to permit of the ready insertion and removal of the bushings or conduits, and this objection was particularly noticeable When it was endeavored to provide such openings in the end sections mediate units of the box or cabinet. B m invention any such objection is obviate an it will be seen thatthe cabinet as a whole is. of a most convenient, substantial and inexpensive construction.

I claim:

1. A box having two and units and an L l intermediate unit or units, each of said end units having off-set extensions alon a p01 tion of its free mediate units also set extensions a1 edges, said extensions of the intermediate and end units being arranged to permit them to fit together so arrange or of the intered e and each of t e interaving a second set of oifong portions of its free 1 and each of the end units having cast corner pieces provided with inwardly extending lugs for the reception of a cover.

units having a bottom, an end and I side portlons, and being provided with an offset ex- I25 2, A box consisting of two end units and Y 5 tension formed along substantially one-half the edge of its bottom portion, there bein an offset extension from the adjacent edgeo one of the side portions, each of the intermediate units having a bottom and side sectionsfand said bottom section having 0 positely placed ofi'set extensions along one alf the ength of each of its edges and an offset extension on one of the edges of each of its side sections, said extensions being laced to coiiperate with the extensions of the end units to maintain said parts in position relatively to each other, with means for holding said parts together.

3. A box for electrical annaratus consisting of two end units and an intermediate unit or units, each of the end units consisting of a fixed and a removable section constructed to confine between them a bushing or bushings, said removable section having at each end a key-hole slot and said stationary section having screws entering sn id slots. 1 4. The combination in a box for electrical apparatus of two end units and an intermediate unit or units, each of the end 'units consisting of a fixed and a removable section constructed to confine between them a bushing or bushings, said removable section having at each end a key-hole slot, and said stai nary section having screws entering said slots, with guiding means whereby said sections are maintalned in substantially the same plane.

5. A box for electrical t paratus consisting of independent presse -up sheet metal end and intermediate units, with castings forming corner pieces connected to hold together the end and side portions of the end units, said corner pieces having each an inwardly and an outwardly extending lug and being also extended to form a supporting foot.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.


itnesscsz WILLIAM E. BRADLEY, J08. H. KLEIN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2640619 *Jan 5, 1950Jun 2, 1953Eli SchneidermanFitting for electrical conduits
US2673657 *Jun 6, 1951Mar 30, 1954Bergh Bros CoShipment and display box and improved corner therefor
US5366240 *Mar 30, 1993Nov 22, 1994Toyoda Cosei Co., Ltd.Air bag device including a two piece casing
US5574255 *Jun 14, 1993Nov 12, 1996Simmons; Micheal L.Laterally expandable modular electrical box
US5619013 *Dec 17, 1993Apr 8, 1997Hubbell IncorporatedGangable electrical box
US5703327 *Mar 31, 1995Dec 30, 1997Hubbell IncorporatedElectrical boxes
US5874692 *Sep 17, 1996Feb 23, 1999Jeffrey S. HoukLaterally expandable modular electrical box and method of reducing wiring time and mounting wall disfiguration
US6229087Aug 17, 1999May 8, 2001Thomas & Betts International, Inc.Gangable electrical box
US6903272Nov 5, 2003Jun 7, 2005Thomas & Betts International, Inc.Gangable electrical box
US20100319986 *Jun 17, 2010Dec 23, 2010Bleau Charles AModular vented circuit board enclosure
International ClassificationH02G3/08
Cooperative ClassificationH02G3/086
European ClassificationH02G3/08C