US2543912A

US2543912A - Forming box

Info

Publication number: US2543912A
Application number: US724108A
Authority: US
Inventors: Loren G Johnson
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-01-24
Filing date: 1947-01-24
Publication date: 1951-03-06
Anticipated expiration: 1968-03-06

Description

March 6,* 1951 G. JOHNSON FORMING BOX Filed Jan. 24, 1947 I N V EN TOR.

LOREN G. JOHNSON A TTOR/VE VS fiaten teci Mar. 6,

UNITED STATES PATENT ()FFICE.

FORMING IOX Loi'e'IiG. .ionnson, Venture, Cal ii Applicationianuary 24, 194v;-seriarntsterds 1' Claim 401. 2 5-128) This invention relates to' forming boxes, and mo re specificallycontemplates a member from which a box structure may be manually formed, for association with a pipe fitting of the type usually set in concrete floors, to protect and preserve during the laying of the concrete the recesses in the flange of the fitting provided for the accommodation of bolt heads by which a fixture may be mounted rigidly to the fitting and upon the floor. v

Closet bowls-and other fixtures requiring connection witha= sewer line are often set upon concrete-fioors through which the sewer or drain pipe projects. In accordance with such installations; thesoil pipe is assembled before laying the floor, with one end extended upwardly to a point above the-levelof the proposed fioor to prevent the inadvertent-flow of fluent cement into the pipe when the floor is laid; Telescoped over the end of the pipe is afianged fitting adapted for subsequent utility in mounting the fixture in liquid tightassociation with the pipe. The fitting is accordingly telescopically positioned upon the pipe with the fiange flush with the levelof the proposed fioor. After calking the bore of the fitting around: the; pi-peathe plumber may safely leave thejob while the floor is laid. When the; concrete is set,the'soil pipe is broken off flush with or within the fitting, and the toilet bowl or other fixturefor-which the drain is provided is secured by bolts tothe flange of the fitting, The bolt heads are insertedunder the flange with their shanks projecting upwardly through slots in the flange and'into the base of the fixture. As the concrete islaid fiush with the upper surface of thefiange, it'has been inevitable that the slots in the fitting, as well as the areaimmediately therebelow, are filled with concrete which must be chipped or chiseled out in order to receive the heads. V

Itis a'generalobject ofthe present invention to provide a box adapted for assembly with a flanged pipe fitting to substantially enclose the portion of the flange in which a radialbolt recess is lo'cated',;s'o as to form a chamber beneath and laterally of' the flange when the concrete is laid around the pipe fittingfor the accommodation of the he'ad'of a bolt by which a fixture is to be subsequently secured to the fitting and floor.

Moresp'ecifically; an" object hereof is the provision of'a stripof flexible metal or the'like,

adapted to be bent around a" slotted portion o'f trienange of a pipe fitting inthe form of'a box andthavinfg' integral stripsf projecting from" op- 2-; ahdfrdrfr are inner side of the best through slot in the flange, res ectiv ly,-ror'j'oint extensibfi-- over the r-1m and downwardly into thebore? of the fitting so as to ositivlyseeufe th b x iii operative position;- W-liile the contrete is poured around the fitting.

Another and hig'hly importantobjeehereof it'- to 'p'ro'vide a' bolt receptaicle he" character settealluded to; I operable to snugly enga e a= mean ing, incorporating atop section adapted up assembly to: overlie the slot inthe flange of the fitting: through which the wa tshank; is te be projected; the top section being adapted to" toirn cut; or otherwise removes fro mainderof the box" after th'alatt'ei is with the fittinginthe floor se as te slotand to open access'througli aF-spa slate ll inthe slot: into the box beiew the flange for t insertion of the bolt-he'ad an' ther'eby disposition of the bolt with its shanl f upwardly and= axially? parallel with thefitting? v Numerous other objects andsaIient' feaE-tu my invention, :such,- for example; as simpli "a" ctmsttuctitn;-- economy of manuiacttire; ease or installation and utility positive engagement with the flange 0tthe fitting to'resistpressure oft fluent-cement, and adaptability to pipe fittings? of various diameters and wall thickiies'ses,- will be apparent tothose of=skill in the' artupom n examination of the folloti' ingidescription, -rad m the light of the accompanying" drawings in which? Fig; 1* is a perspective view of 1 a": forming box embodying my invention; shown with the ale mentsthereofi inpartially folded relationship; Fig. 2 is a fragmentary sectionalview through the device'as installed upon a flange of a'--pipe=- fittingg: 1' 7' Fig. 3 is a fragmentary plan view-of a pipe fitting withaformingbox installed thereon Fig-1 4' is; aside elevation of the boxin 1:1os i tion; for the laying of the" concrete around the fitting; v v v Fig, 5 isa plan view of the strip from which the box; is formed;

Fig} 6 is a perspective viewof a flanged pipe fitting-ihavirfgi apair of diametrically-opposed} slots in the; flange, covered" andprotected by forming boxes, each incorporatingmy inVen- -[Ii-011';

Referring to the drawings in detail thenumerals or; which indicate similar" parts throughout thefsv'e'ial v ews, -a" designates} n; erally" a" circular pipefitti'ng" having a" bore" 9 an upwardly-directed internal shoulder III for' fj a purpose hereinafter described.

An integral annular flange II encircles the upper end of the fitting, and in diametrically opposite sides of the flange radial slots I2 are formed. Each slot I2 is of a width only slightly greater than the diameter of the shank of a bolt (not shown) adapted to project upwardLv through it for attachment of one side of the base of a closet bowl or other fixture to flange II.

The forming box depicted in Figs. 1-4 and 6, is illustrative of each of a pair thereof adapted to be assembled and shaped upon opposite sides of the fitting, and comprises a flat, generally rectangular strip I3 (Fig. 5) composed preferably of flexible metal. The body Id of strip is of a width substantially greater than that of the slot I2 in flange II of the pipe fitting 8 with which the box is to be associated. From each end of the rectangular body I4, a narrow retaining strap I5, integral with the body, extends for a purpose later referred to.

Adjacent one end of body I4 of the strip I3, the sides of the latter are cut inwardly as at I6 on a line forming a right angle with the longitudinal axis of the strip and to a depth equal to the proposed depth of the inner side of the box to be formed, as will appear. The distance between the cuts I6 and the adjacent end of body i i of the strip is preferably substantially equal to the depth of the cuts, respectively. A second pair of aligned cuts I'I, parallel to the first, are made in the side edges of body I4 to a depth equal to that established by the cuts I6. The distance between the 01168 I6 and I! at respective sides of the strip determine the width of the bottom of the box, and accordingly varies with the width of flange II and the diameter of the bolt head to be accommodated. A third pair of transverse, aligned cuts I8 extend into the sides of the body a distance corresponding to the depth of the first cuts I6 and are spaced from the line of the cuts I! a distance equal to the depth of the proposed box laterally of the flange I I to which it is to be attached.

From the aligned cuts I8 the remainder of the body of the strip, identified by numeral I9, is of a length sufficient to substantially cover the entire box proper to be constructed by the user from the part of body I4 between the opposite end of the latter and the cuts I8. The width of the strip I5 attached to the adjacent end of the body is preferably slightly greater than that of slots I2 in flange I I of the fitting 8 over which it is'to be placed, as will appear, so as to supplement the function of the top section I9 of the box when formed, of obviating any tendency of the liquid cement to enter the box through the slot in the flange.

The utiliity of the flat strip I3 and the construction of the box produced by bending the component parts of the body thereof is as follows: Prior to the assembly of fitting 8, and with the soil pipe mounted so as to project vertically above the level of the proposed floor, the fitting is equipped with a pair of boxes embodying my invention for the protection of the slots I2 as above generally described. To this end, the sections 20 and 2I of each strip between the cuts I6, I1 and I 8 at each side and the sections 22 of the strips between the cuts I6 and the adjacent end of the body are bent at right angles to the plane of jthe body and in the same direction. The strip I3 is then bent to form a right angle on a transverse line extending between each of the oppositely disposed cuts I6, I1 and I8, respectively, each bend of the strip being in the same direction. It will thus be seen that this latter step of folding the body of the strip brings the rectangular

transverse portions

23 and 24 of the body into parallel oppositely disposed relationship to one another to form oppsite sides of the box. Coincidentally, the marginal sections 22 of the body between the cuts I6 and the adjacent end of the body and the sections 2I between the cuts I! and I8, respectively, are folded inwardly to overlie and flank the marginal sections 20 between the cuts I6 and I! at each side of the body to form composite ends of the box as illustrated particularly in Fig. 1.

As hereinabove indicated, the width of the transverse portions 24 as determined by the spacing of cuts I1 and I8 is greater than the width of the marginal portion 23 by an amount equal to the thickness of the flange I I with the result that when the strip is folded as above described, the outer side wall 24 of the box projects above the upper edges of the remainder of the box and to a corresponding extent. The box is then assembled with the fitting by initially placing the same below flange II with the strap I5, which extends from the end of the body opposite to the top section I9, projecting upwardly through and in contiguous relation with the bottom of slot I 2. The depth to which the cuts I8 penetrate the body is proportioned to the distance between the line of cuts I6 and I! so as to assure the formation of end walls of a length from the inner edge of the box to the nearest adjacent edge of the' outer transverse portion 24, substantially equal to the width of flange II of the fitting, whereby the outer edge of the flange will normally abut against the edge of the transverse portion 24 of body I4 when the box is assembled therewith, as described.

The top section I9 of the body of strip I3 is then bent down upon the upper surface of flange I I and over the slot I2 in the latter so as to complete the enclosure of that portion of the flange.

In order to secure the box in the described position, the straps I5 are jointly extended over the upper rim of fitting 8 and downwardly into and contiguous with the bore 9. It is desirable that straps I5 be of suflicient length to project from the lower end of the fitting in order that they may be bent around the lower rim, as indicated in Fig. 2 at 25, and thereby positively clamp the box in preadjusted position.

The fitting 8 with the boxes installed is then telescoped over the pipe and positioned with the flange at the level of the proposed floor. The fitting 8 and pipe are rigidly connected by calking the bore of the fitting around the pipe to the depth of the annular shoulder I0. Strap I5 and the boxes are thus preliminarily secured in their adjusted positions on flange II. The outer corners 26 of top section I9 may then be bent downwardly to obviate the projection from the finished floor of sharp edges.

The floor of concrete may then be laid around the fitting and boxes, the latter being firmly cemented in place. After the concrete is set, the plumber severs the portion of the pipe projecting above the floor and theeafter cuts the top section I 9 from the boxes, exposing the slots I2 in the flange II and the receptacles in the concrete below and extendin laterally of the flange provided by the forming boxes. The heads of the bolts by which the fixture is to be attached are slipped beneath flange II adjacent the outer 'walls 24 of the respective boxes and the shanks of the bolts are drawn into their normal operative position in the slots I2 of flange l I for alignment with the holes in the base of the fixture (not shown) to be attached to the soil pipe, in a conventional manner.

It will be appreciated that the admission of small amounts of fluent cement into the box between the component elements thereof will not impair the practical efiiciency resulting from its utility. However, before securing the straps Hi, the plumber may fill the box with paper, oakum or other material which may be removed with facility after the floor is laid.

While I have shown and described but a single embodiment of my invention, it will be appreciated that numerous changes in size, design, shape and number of the various elements hereof may be made in accordance with specific requirements, that the box need not be formed by the plumber on the job, but may consist of a molded, cast, or a pre-formed suitably sealed sheet metal receptacle adapted for association with the flange of a pipe fitting, that the contour of the finished box may be varied, depending upon the shape of the flange and of body of the fitting so as to assure the provision of a tight enclosure, and that any conventional expedients may be substituted for the integral straps [5 by which the boxes are secured in placeall without departing from the spirit of my invention as defined in the appended claim.

What I claim and desire to secure by Letters 1 the underside of the flange at the bottom and at each side of said slot another reach of said side walls extending to the level of the upper surface of the flange laterally of the latter and a top section connected to the last-named reach of said side walls to overlie the slotted portion of said flange, said strap being connected to the side wall of said box structure adjacent the bottom of the slot in the flange and extending over the rim of the fittin into the bore thereof, a top section for said box structure connected to said last-named upper edge to overlie the portion oi! said flange in which the slot is located, and a strap connected to the edge of said top section extending over the rim of said fitting and into the bore thereof to secure said top section in position.

LOREN G. JOHNSON.

REFERENCES CITED The following references are of record in the file of this patent:

V UNITED STATES PATENTS Number Name Date 589,344 Eccleston Aug. 31, 1897 805,883 Russell Nov. 28, 1905 820,986 Van Patten May 15, 1906 925,232 Sandstrom June 15, 1909 1,290,972 Goodlett et al Jan. 14, 1919 1,550,950 Cowell Aug. 25, 1925 1,627,765 Bates May 10, 1927 1,734,356 Welch Nov. 5, 1929 1,821,951 Thompson Sept. 8, 1931 1,888,127 Hearne Nov. 15, 1932 1,902,977 Tamagno Mar. 28, 1933