US1897340A - Knockdown garbage receptacle mold - Google Patents

Description

Feb. 14, 1933. H. F. slr-:LAFF 1,897,340

KNOCKDOWN GARBAGE RECEPTACLE MOLD Filed June 8, 1928 2 Sheets-Sheet l NVENTOR ATTORNEY ATTORNEY 2 Sheets-Sheet 2 /NVENTOR i vf6 of Y H. F. SIELAFF KNocKDowN GARBAGE RECEPTACLIE: MOLD Filed June 8, 1928 lll/ 5 embodied in my invention.

Patented Feb. 14, 1933 PATENT OFFICE HERBERT F. SIELAFF, 0F CHICAGO, ILLINOIS KNOCKDOWN GARBAGE REGL?,IPILAGIILE MOLD Application led June 8,

first, to provide a mold, together with its complemental parts,

0 which :may be used over and over again in which to form concrete garbage receptacles; and, second, to provide a lnoclrdown mold which is, comparatively, easily and quickly assembled, and, just as easily and quickly 5 talren apart and removed from the molded form when ithas become sufficiently set.

Another object of the improvements, as embodied in my invention, is to provide a molding device which shall resultl in the production of a product more economically, and more cihcicntly, than can be obtained by any other of the present methods.

These and other objects of my improvements will be more fully outlined in the several views ot 'the accompanying drawings and more fully described in the following specification, and more particularly pointed out in the appended claims.

In the several views illustrated in the accompanying drawings is presented the improvements as embodied in my invention.

Fig. l is a plan view of my knock-down mold with certain parts broken away to show more clearly some of the important fea-tures Also, certain other parts are omitted here in order not to complicate the drawings. Y

Fig, 2 is a sectional view taken, substantially, on the vertical plane ill-ir of Fig. l, and shows the molding device supported on a portable platform.

3 is a sectional view taken, substantially, on the plane BB of Fig. 2, and :hows the means by which the outer walls of iilar halves of the inner and outer the mold are clamped together.

the two walls oi Serial No. 283,877.

Fig. 5 is a sectional view taken on the plane ot Fig. l, and shows the means by which the two portions which form the inner contour 01"' the bottoi'n of the tacle are clamped together.

Fig. 6 is a sectional view taken on the plane E--E of Fig. 2, and shows the means by which the two port-ions which form the inner contour of the bottom of the garbage receptacle are held down against the inner side walls of the mold.

Fig. 7 is a sectional view taken on the plane F-F of Fig. 2, and shows how the inner side walls and the inner front wall o1E the mold are support-ed by each other.

Fig. 8 is a sectional view taken on the plane Css-Gr of Fig. 2, and shows the flush joint made by the inner side walls and the inner front wall of the mold.

Similar characters refer to similar parts throughout the several views.

Essentially, the molding device consists of eleven separate form sections, which, when assembled in their proper relation form the style and shape of the inner and outer contour of my garbage receptacle, above mentioned.

In practice, it has been found best to mold the garbage receptacle with its top side down and its contour formed in the mold plate, 9, which is inclinedly support-ed on a portable platform, 10. Around the plate, 9, is a rectangular raised portion formed into a vertical wall, 11, againstwhich the outer walls, 12, of the mold are clamped by means of the clamping device, 13, indica-ted in Figures 2 and 3. The clamping device, 13, is made up of angle irons formed into two identical C shaped clamping members, 13', which are drawn toward each other against the outer side walls, l2', ci Jrhe mold, by means of the clamping screws 13". It may be noted here, the plates, or sheet-s, which 'form the outer side and back walls, are made up of two symmetrical (one right hand, and one left hand) L-shaped sections; the shorter portion, l2, ot' the said L sections forming the outer back wall oi the mold. The vertical edges oi' said shorter'portions, 12, meet to form a leak proof joint, ll. Before drawing the said C clamps, 13', real tight against the side walls, 12', the front wall plate, 15, is put in place so that its top end, 15', is down and against the wall 11, of the mold plate 9, and, so that the outer surface of which rests against spaced tie rods, 16. Now, by means of the said C clamping device, together with the clamping device turnbuckle, 17, the outer sides, front, and back wall mold plates, may be firmly clamped around the said wall, 11. At this point, also, the vertical join-t, 14 mayV be drawn firmly together by means of a long channel bar or C clamp, 18, (shown in'light dash lines in Fig. 2) having several clamping screws, 19, therein, clamped over the angle bars, 20, which are secured on the outer surface ofthe walls, 12", near the vertical edge which form the joint, 14. vA leak proof joint between ther sides, 15", of the front wall, 15, and the inside of the outer side Walls, 12', may-now be made by drawing the said walls 12',A firmly against the said sides v15" by means of the tie rods, 16.,

@n the mold plate, 9, which forms the contour of the top surface of the garbage' receptacle, is a raised portion formed into a vertical wall, 11',` which similar to, and parallel with, the said wall., 11. The said wall, 11', being spaced a lilre distance .from the onter back. and outer side walls,12" and 12', respectivelyr It will be seen by referring to Fig. 3, that the said wall, 11',`extends only as far as, and-joins with, the ends of the upright wall, 11", Vwhich is formed upwardly from the mold plate, 9, to a distance slight-4 ly greater than the dis-"tancer between the parallel walls, 11 and 11'. Together with this wall 11", and the inside wall mold plates, an opening is formed in the top of the garbage receptacle, aboveV mentioned. nto the'ends-of the said wall', 11", is formed a vertical rectangular notch, 21, which forms af'stop', and, as well, a lock, for the inner wall mold. plates which are inserted at this point.

To form the innei` bach and sir walls of the. garbage receptacle there p, 'fon-r separate form sections. `One pair, of which, is fitted to the said wall, 11'; tl "s pair, indicated as 22, together form the inner baci: wall and, also, a portion of the side walls of the said receptacle. The back wall forinin-g portions, 22', of the said pair, 22, joined together atk their vertical edges, 22".

And, by means of a long channel bar or C.

clamp, 18, (also shown in'liglit dash lines 1n Fig. 2) together with its clamping screws,

19 clamped over the angle bars, 23, whichV are secu-red, alternately with respect to each other on the inner surface of both the portions, 22', near and parallel with the vertical edges, 22", a lealr proof joint may be secured..4 The reason vof the alternate rel,.- tion of the said angle bars, 23, is, that when knocking down the walls, 22, thel said bars, 23, will swing by each other, permitting of `the easy removal of the said wall plates, 22.

The other pair of Vinner side wall forming sections, 24, each have a vertical edge, 25, which matches with corresponding vertical edges, 26, of the inside wall mold plates, 22. Extending from each of the mold plates, 24, is a narrow parallel strip, 27, which snugly fits between the vertical edge 26, and the rectangular notch, 21. As the said strip, 27, is inserted between the said notch, 21, and the vertical edge, 26, it forces the mold plates, 22, back so that the wall lmold portion, 22',

ts snugly against the said wall, 11. ln order to cause the side wall mold portions, 22, and the strip 27 of the portions 24, to it closely to the sides of the wall, 11', they are forced over against thefsaid wall, 11', by means ofv a' .turnbuckle, 17', similar to that of 17, actuated between stiff parallel bars, 28, which, not only force the said wall plates,

.22, and 24, over, but also, canse the corresponding edges,f25 and 26, to line up perfectly with each other, and, at the same time, form a leali proofy joint around the said oinvingedges. However, before the said mold plates, 22 and 24, can be forced outwardly to any great extent,'which would cause them to become out of .line with each other, means must be provided which-will act, not only as ameansto prevent the said joining edges of trie plates, 22 and 24, from becoming ont of line with each other,` but, also, as automatic limiting ganges or stops.v

By. referring to Figures 2 and 6, it will be seen that the mold plates, 22 and 24, each have angle bars, 29f and 30, respectively, fixed along their respective horizontal and dia-gonal edges, 31 and 32; and, along the edge, 33, of the wallmold portions, 22', is fixed an angle bar, 34. Spaced about equidistant each way from the said vertical edges, 25 and 26, are adjustably secured, to the angle bars, 29 and 30, the said limiting gauges, or stops, 35, which are adapted to not onlyv act as lateral limitinggauges, or stops, for theinner side mold walls, 22 and V24, but, also, to act as clamping down means for the said receptacle floor forming plates, 36 and 37 by engaging, when forced over,.triangle strips, 38, which are fixed `to the said plates, 36 and 37 at the edges thereof, as indicated in Figures 2 and 6. 'Also,before iinallyforcing the Yside mold plates, 22 a-nd 24,. to their proper locked position by means of the turnbuckle, 17 and the bars, 28, the rear floor mold plate, 36, is first securely clamped in place along the edges, 33'and 31, by meansof the clamp, 39, and the clamp screw, 40, as is indicated in Figure 2; and next, the forward floor mold plate, 37,

is set in place on the edges, 32, by first insertiso diagonal surface will match up with the diagonal edges, 24', of the plates 24, and, so as to form a leak proof joint at, 42, where the said plates, 36, and 37, meet, as clearly indicated in Figures 1, 2 and 5.

Referring to Figures l, and 2, it will be seen that a portion of the side plates, 24, are bent toward each other, as at, 24, and the forward portions thereof inserted through the opening, 41, so that their parallel faces, 24, will be in contact with the vertical edges, 4l", of the said opening, 41. After all the said sections, which compose the mold, have been securely locked in place by the several locking means mentioned, a turnbuckle, 17 which is similar to that of 17, shown in Fig. 2, is inserted between the said faces, 24', opposite the said edges, 41, and, by means of the said turnbuckle, 17, the inner and outer mold sections are rigidly secured to each other.

Around the said opening, 41, are secured narrow strips, 43, which molds aA recess all around the clean out opening of the said re ceptacle. The strip, indicated as 43', has a series of holes, 44, and on the other side of the said plate, l5, opposite the said strip, 43', is secured a strip, 45, through which, and also the plate 15, the holes, 44, are extended, and, over the said strip, 45, is secured a plain, or blind strip, 46, which acts as a stop for the bolts, 47, which are inserted in each of the said holes, 44, as indicated in Fig. 2.

IThe inner front wall and top mold plate, 48, which, together with the front plate, 15, and the mold plate, 9, form the front and top of the said receptacle.

Referring to Figures 1, 7, and 8, it will be noted that the mold plates, 24, are flanged as at 49. Between the edges, 49', of the said flanges, 49, is secured the: said plate, 48. The said plate, 48, however, has secured to it overhanging angle bars, 50, which are adapt-- ed to support the said plate, 48, so that the edges, 48', of the said plate, 48, will coincide with the edges, 49, of the flanges, 49. The said plate, 48, is also supported against the wall, 11, as indicated at 51, in Fig. 2. To further support the form plate, 48, and keep it in co-relation with the flanges, 49, latching devices are provided. The said latching devices consist of clips, 52, secured to each of the flanges, 49, and clip engaging latch bars, 53, pivotally secured to the form plat-e, 48, as shown in Figures l, and 2. After the said form plate, 48, is properly located, it is firmly locked in place by means of clamp bars, 54, and clamp screws, 55, threaded into a nut secured to each of the inner side plates, 24, in the manner indicated in Figures 1, and 2.

In the mold plate, 9, are pockets, 5G, into which are supported links, 57, while like the said bolts, 47, will be molded into the concrete. rlhe embedded bolts, 47, will protrude suihciently above the surface of the recess in the concrete to permit of two thicknesses of about No. 14 ga. metalstrips and the nut accompanying the said bolt. Likewise, the said links, 57, will extend above the top sur'- face of the concrete to permit of their use as part of a door hinge.

One of the important features of my molding device is, that it molds round corners, which are indicated in the several views as 58, both, on kthe exterior, as well as the interior, of the said concrete formed garbage receptacle.

Referring to Figures 1, 2 and 3, and particularly to Fig. 2, it will be seen that a groove, 59, surrounds the walls 11', and the wall 11, inthe said mold plate, 9. The purpose of this groove is to form a ridge around the top opening of the said garbage receptacle.

1n order to reinforce the outer' and inner wall mold plates, angle-bar stiffeners, 60, are suitably spaced as indicated in Figures 1, and 2.

Should any kleakage occur around the said wall 11', when pouring, sand, or dust, is thrown on the ledge, 61, and immediately the leak is stopped. And, should any leakage occur'at the horizontal edge, 31 and v32, sand, or dust, is thrown onto the flanges, 62 and 6.3, respectively, of the angle-bars, 29 and 30, which, also, immediately stops the leak.

Having thus described my invention, it can be readily understood that the minor details of my construction may be altered in several ways without departing from the spirit of my invention, therefore, what I claim and desire to secure by Letters Patent is- 1. The combination in knock down molding devices of the class set forth, of a pair of combined outer side and back wall mold plates detachably secured to each other, an outer front wall mold plate removably secured between the said outer side wall mold plates, and a pair of combined inner side and back wall mold plat-es detachably secured t0 each other, and a pair of inner side wall mold plates detachablysecured to the side wall mold plate of the said combined inner wall mold plates, and, a combined inner front wall and top mold plate removably secured between flanges of the said pair of the inner side wall mold plates, and an inclined outer top surface mold plate supporting each of the said mold plates, and, a pair of floor mold plates detachably secured to each other and supported by the inner wall mold sections, substantially as described and for the vpurpose specified.

2. The combination in knock down molding devices of the class set forth, of a set of outer side wall mold plates, an inclined outer top surface mold plate supporting said plates, outer vertical walls raised from the said top surface mold plate and set in from the edges thereof to form a surrounding ledge, and

means to clamp said side Wall kmold plates, supported by the said ledge, snugly and securely to the said vertical Walls to secure, substantially, a leak proof joint; a set of inner side Wall mold plates supported by the said inclined mold plate, and, inner vertical Walls spaced a uniform parallel distance in from the said outer vertical Wall and the said Wall set in from the edges of a rectangular opening inthe said top surface mold plate to form aledge around the said opening, and the said vinner vertical Wall adapted to space the said gular opening in the mold plate and an inner Y(il) fillet-ed right Wall formed around three of its edges which are in parallel relation With the back and side right Walls formed around the back and sides of the said mold plate, and the clined sides, and fmeans to automatically secure said floor plates with 'saidinner set of molding forms when clamping said forms in place, substantially as described and for the purpose specified. s

6. The ycombination in knoclrdoWn molding devices for molding garbage receptacles,'com prising; an inner set of combined inner back and inner sidewall molding forms disconnectably secured to one another and arranged to form the inner back Wall surface and the inner side Wall surfaces of a garbage receptacle, a set of bent disconnectably secured horizontal Hoor Ymold plates having inclined sides, said bent plates being adapted to form avhorizontal floor surface and upwardly inrclined floor surfaces and beveled corners When arranged to mold a garbage receptacle form, triangular strips, or stops, secured along the edge .of said inclined sides, and

means, comprising said strips, for automatically securing said floor plates with said Wall forms when clamping said Wall forms in pla-ce, substantiallyl in the manner described.

HERBERT F. SIELAFF.

said inner right Wall setin from the edges of v the opening to form a surroundingledge ;v an upright Wallforming one of the edges of said epening and extending crossWise of the said mold plate and joining the said side right valls, and, a vertical notch in the ends of the said uprightvvall joining the said right Walls; pockets formed in the said mold plate, andeach of the said pockets adapted to support a link therein, substantially as described and for the purpose specified.

l. The combination in knockdown molding devices for molding garbage receptacles, ,coinprising; combined inner back and inner side Wall mold plates, said plates being.v respectively disconnectably secured With one an-V other, Vjoining portions of said back Wall plates being provided with a seriesof spaced bars along theirjoining edges, the bars along one of said edges being arranged in alternate relation with those arranged along the opposite edge of said joining portions, and means, comprising the arrangement of said 1 bars, whereby said inner Wall mold plates may be readily removed from Within a molded form as composed in said molding device.

, 5. The combination in knockdown molding devices for molding garbage receptacles, comprising; a set of bent joining floor mold plates having inclined sides, a set of combined back and side inner wall moldingcforms disconnectably secured one With the other,` said plates along the edges @of their bent and in-

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