US2246028A

US2246028A - Grouting outlet

Info

Publication number: US2246028A
Application number: US285849A
Authority: US
Inventors: Woodring Hubert Earl
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-07-22
Filing date: 1939-07-22
Publication date: 1941-06-17
Anticipated expiration: 1958-06-17

Description

June 17, 1941.

H. E. WOODRING GROUTING OUTLET Filed July 22, 1939 5 Sheets-Sheet 1 INVENTOR HUBEIIQT EARL oonnme BY 1 LMem M ATTORNEYS June 17, 1941. woo 2,246,028

GROUTING OUTLET Filed July 22, 1939 I ,5 Sheets-Sheet 2 m'dp FIG.6

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INVENTOR HUBERT EARL OODRING ATTORNEYS n 1941- H. E. WOODRING 2,246,028

GROUTING OUTLET Filed July 22, 1939 5 Shets-Sheet s Hill"- INVENTOR 'HUBE RT EARL WOODRING ATTORNEYS June 17, 1941. H. E. WOODRING GROU'IING OUTLET 5 Sheets-Sheet 4 Filed July 22, 1939 FIG l4 INVENTOR 'HUBERT EARL w OOD'RING m ATTORNEYS la l nllllulpl""11" FIG. l6

5 Sheets-Sheet 5 H. .E. WOODRING GROUTING OUTLET v Filed July 22, 1939 FIG. l8

June 17, 1941.

wrsiiimv H 2 1 ATTORNEYS 6. m R m D O 0 W mL w NRJv WA E T. R E B U H Patented June 17, 1941 UNITED STATES PATENT OFFICE GROUTING OUTLET Hubert Earl Woodring, Denver, Colo.

Application July 2;, 1939, Serial No. 285,849

'15 Claims. (Cl. 72'0.5)

The invention relates to grouting outlets by means of which grouting-may be pumped to' the cracks between separately poured concrete blocks in order to fill the same and provide a water-tight concave structure. The grouting outlet includes two separable parts which form as closed chamber. These two separable parts are pulled away from each other or become separated from each other upon contraction of one or the concrete blocks and in this manner open the grouting outlet for the passage of groutingtherethrough to fill thecracks' between the two concrete blocks.

It is an object of the invention to construct a new and novel grouting outlet.

The principal object of the invention is to construct a grouting outlet of two separable parts which form an enclosed chamber in which the securing means is located for retaining the separable parts in assembled relation. Also, the grouting outlet is of such construction that some part thereof yields when a concrete block cntracts to separate at least some portion of the two separable parts, whereby the grouting outlet opens so that grouting may be pumped through the grouting outlet into the crack formed between two independently poured concrete blocks. r

A still further object is to construct an article of manufacture which is useful to form a grouting outlet having two separable parts: The article of manufacture forms a grouting outlet when assembled with another part which may be separatelypurchasable' on the market. The grouting outlet so assembled has securing means located within a chamber formed by the two separable parts.

Another object ofthe invention is to construct a grouting outlet in two separable parts which form a chamber within which there is provided yield'able means for retaining the two parts of the grouting outlet together, and the two separable parts being engageable by the manipulationv of one part relatively to the other. The yieldable means releases, gives way, or elongates when one of the concrete blocks, in which. one of the parts is embedded,v contracts.

Another object of the inventionis to construct grouting outlets with various types of securing means which are located within the chamber formed by the two separable parts. of the grouting outlet and which yield to permit separation of the two parts of the grouting outlot when one of the concrete blocks, in which one part of the grouting outlet is embedded. contracts.

Another object of the invention is to construct a grouting outlet formed by two separable parts which provide a closedchamber. The securing means for retaining the two parts together are within the chamber, and part of the grouting outlet is made yieldable so that separation 0ccurs between the two parts of the grouting out let upon contractionof one ot the concrete blocks, which separation opens the grouting outlet for the passage of grouting thereth-roughl Another object is to construct a grouting outlet of two separable parts in which one part is nested. within the other sothat the complete grouting outlet may be embedded. in the first concrete block to be poured and there is no need to separate the parts at any time.- Other: objects of the invention will be. more apparent from the: following description taken in connection with the accompanying drawings, illustrating several preferred embodiments of the invention, in which:

Figures 1. through 7 show the first form. of the invention.

Figure l. is a: longitudinal section through the outlet means of the two separable parts oithe grouting outlet to which apipe fitting is secured and shows the endsoi twopipes. secured in the pipe fitting.

Figure 2 is a planview or the outlet means or memberxot thei'grouting outlet shown in Figure l with a pipe fitting secured thereto.

Figure 3 is a section through the cove'r means or member of the grouting outletready' to be assembled upon the' outlet means or member shown in Figure 1.

Figure 4;- is a plan view of the cover means of the grouting outlet-shown in Figure Figure 5 is asection through a concrete block with the outlet means of. the grouting outlet, a pipe fitting secured thereto and pipes attached to the. pipe fitting, all embedded the concrete and with the face at this outlet means placed against the concrete form which retains the poured concrete in place until it hardens.

Figure 6- is a section through two adjacent concrete blocks with one separable part or the outlet means of thev grouting outlet embedded in the left-hand block which has hardened, and withtheother separable partor the cover means of the grouting outlet abutting faceto face with the first part and embedded in the recently poured and soft concrete block on the right.

Figure 7' is a section through the grouting outlet and the concrete blocks with the pipe fitting mostly in elevation after the right-hand block has hardened and in hardening has contracted to pull th two separable parts of the grouting outlet away from each other so that an opening is formed therebetween for the passage of grouting into the crack between the two concrete blocks caused by contraction of one or both of said blocks.

Figures 8 through 12 illustrate another form of grouting outlet made in accordance with the invention herein.

Figure 8 is a partial section through the grouting outlet showing the two separable parts thereof in exploded position with the cover means ready to be inserted over the outlet means.

Figure 9 is a cross-section through the assembled grouting outlet and shows one arm of the securing means, which retains the two separable parts in assembled relation, extending outwardly and the cover means received upon the securing means. 1

Figure 10 is a plan view of the outlet means or member with a portion of the pipe fitting removed and showing the securing means folded within the chamber of the outlet means.

Figure 11 is a section through the outlet means of the grouting outlet and shows the pipe fitting secured thereto. The outlet means has the yieldable arms bent into the chamber, formed by the cup shape of the outlet means, so that the peripheral flange can be placed against a concrete form without the arms interfering.

Figure 12 is a section through two adjacent concrete blocks and the grouting outlet with the outlet means and cover means embedded in their respective concrete block and separated from eacch other which is caused by the contraction of one or both of the concrete blocks. The pipe fitting and the ends of two pipes secured thereto are also shown embedded in the concrete.

Figures 13 through 17 illustrate a third form of the invention in which the two separable parts, namely, the outlet means and cover means,

may be at all times retained in assembled position.

Figure 13 is a .plan view of a part of the grouting outlet showing the pipe fitting in elevation and the outlet means in section. The ends of pipes are shown secured within the pipe fitting.

Figure 14 is a section through the cover means in position ready to be assembled with the outlet means of Figure 13.

Figure 15 is a plan view of the securing means alone with the arms and the extensions of the arms spread out.

Figure 16 is a section through the two separable parts of the assembled grouting outlet, the pipe fitting being in partial section and having the ends of two pipes secured thereto. This view also shows the manner in which the arms are temporarily bent into the outlet means so that the grouting outlet may .be placed against the side of a form into which the concrete is poured. V

Figure 17 is a section through the grouting outlet and two adjacent concrete blocks after the righthand concrete block has been poured, hardened, and contracted. This view shows the manner in which the grouting outlet opens up so that grouting may fiow through the outlet means into the crack between the two concrete blocks.

Figures 18 through 22 show a fourth form of the grouting outlet in which the cover means is the yielding part which opens the grouting outlet upon contraction of the concrete.

Figure 18 is a section through the outlet means and a partial section through a pipe fitting secured thereto. One end of two pipes is shown secured to the pipe fitting.

Figure 19 is a longitudinal section through the cover means of a fourth form of grouting outlet.

Figure 20 is a plan view of the cover means of the grouting outlet.

Figure 21 is a section through the two separable parts of the grouting outlet and through portions of adjacent concrete blocks in which the grouting outlet is embedded. A partial section is taken through the pipe fitting and shows the two separable parts of the grouting outlet pulled away from each other after contraction of one or both of the concrete blocks, so that grouting may pass through the grouting outlet into the space formed between the two concrete blocks.

Figure 22 is a cross-section taken on line 22-22 of Figure 18 and shows the inlet passages into the chamber formed by the two separable parts of the grouting outlet.

Grouting outiets heretofore used have consisted of two separable parts which have been yieldably held together in some suitable fashion. The most common way of holding the two parts of the grouting outlet together has been by means of wire, the ends of which passed through holes in each separable part and were twisted to retain the two parts together. Upon separation of the two concrete blocks, this wire has pulled apart or stretched to permit separa- ;.-tion thereof. .A common difiiculty with this type of construction has been that a workman frequently forgets to insert the Wire in position in that part of the grouting outlet which is to be embedded in the first concrete block. When this block hardens and the forms are removed, there is nothing to hold the other or cover means of the grouting outlet in position upon the first part. This failure to insert the securing wires necessitates chipping away of the concrete in back of the embedded half of the grouting outlet so that securing wires may be inserted in position. This is a tedious, difiicult and unsatisfactory correction of the failure to initially insert a securing wire. Again, the workman must be careful when twisting the wires together so that they do not break or twist oil, in which case he has to chip out concrete to insert a new wire.

The grouting outlet to be described herein utilizes two separable parts which form a closed chamber and Within this chamber means are provided for securing the two parts together. With this construction, a workman places one part of the grouting outlet against the form of the first concrete block to be poured and he does not have to remember to insert the securing wires. When the form is removed, the securing means, or a part thereof, is exposed and is always readily'available for retaining or securing the cover means in cooperative position with the outlet means or the other separable part of the grouting outlet which is embedded in the concrete block.

The grouting outlet illustrated in Figures 1 through 7 comprises two separable parts, one of which is an outlet means 30 which is cup-shaped, although this is not essential. The outlet means has a form-engaging periphery which may be a means need notbe attached to the threaded outlet M and any other suitable means may be proflange 3| extending around the entire periphery thereof. This flange provides a broad face for engagement with the concrete form in order to assure a seal between the form and the inlet means so that the soft concrete cannot flow into the inside of the outlet-means. An inlet'or hole 32 is provided extending through the' outlet means. 1 I i A pipe fitting maybe provided, if desired, which is secured to I the outlet means so that grouting may flow from the-pipe fitting into the grouting outlet. Any suitable form of pipe-fit ting may housed and it may be the-threadedend of a pipe. The pipefitting particularly shown includes a tubular part 35 uponeach end of which there is provided a pipe securing means. of any suitable kind. The pipe securing means; par ticularly shown includes athreadedend 36 up. on which is received a nut or bushing 31' which engages and reduces the diameter of. a contram tile ring 38. Thereductlon in diameter of'the ring 33, by screwing up or tightening the nut 3-1:, grips the end of a pipe P to the pipe fitting. It is clear that one or more pipe securing means may beprovided witheach pipe fitting.

The tubular part 35. of the pipe fitting has a threaded outlet or outlet connection M. This threadedoutlet. passes through the inlet orhole 3.2 in the outlet. means 30, and the latter isretained thereupon by means. of a. nut. 42 threaded upon the outlet connection. A cap 43 maybe used to temporarily seal the outlet.

The pipefitting. preferably formsa part of the grouting outlet, although this is not essential so n as means is provided for makin a p p connection with, the grouting outlet. This means is particularly shown as. a plain hole 32- in the outlet means, 30 and it, is understood that. any t er ui a le; inlet is contemplated.

A cover; mean 46 forms the other separable part of the grouting outlet. The cover means il-. lustrated is cup-shaped and of the same size as the outlet means; 30, although it is not, essentialthat it be, either cup-shaped. or of the, same size, so, long as the outlet means. is. cup-shaped, Inother words, it is; essential that one of the separable parts be so shaped that a chamber is. formed within the two parts and ordinarilyit is m a al i h par s c pwshan The v r means likewise may have a flange. 41. for face to. face e gement. with. the. de se. 3|. of the cover means so that a better se a1 isproyided between the outlet means and the cover, means in order to, prevent concrete, when it is poured, from pass-. ing into the chamber within the grouting outlet.

Securing means is provided for retaining. the cover means 46- and. the outlet means 30. in assembled relation with the flanges 3i and 41; in contact with each other. The securing means includes yieldablemeans carried by or attachable to. one of the aforesaid, separable parts or means'and is located in-the: chamhenwithin the grouting outlet. The yieldable means; 50, particularly illustrated in Figure 3, has a. threaded sleeve from which extend yieldable arms. 52 which aresecured tothe coyermeans 46 in any suitable fashion, such as by a spot Weld 53., The

securing means also includes, the, threaded. outlet 41 carried. by the outlet means which receives the threaded. sleeve 5i, as will be described hereinafter. The, threaded outlet has therefore a double function, namely, to secure, the outlet means to the pipe fitting andtosecure the cover. means 46- to the threaded; outlet, or particularly to the outlet means. The; yieldablevided for securing. the yieldable means to the outlet means; however such double use of this threaded outlet lends simplicity tothe construc tion,

Anchorage means are provided for firmly embedding the cover means in a concrete blockl. The means "particularly illustrated in Figure. 3 are extensions 56 of the yieldable arms 52 which passthrough slots 51 in the cover means 4E. The ends-Elliot the extensions may be bent, if desired, to more firmly anchor: the extensions within the concrete block. Any other form: of anchorage means which is secured to the cover: means is contemplated. 1 I r The grouting outlet is used in a manner now: to-be described. The forms F for the first con crete block are constructed and placed in p0-- sition, after which one separable part of the grouting outlet, such as the outletmeans 30; is connected with a pipe system, including aseparable part. of other grouting outlets, so that. the. flange 3.1 is close to or lies against. the insidezoi the form .15; The. grouting outlet is held there against. in any suitable fashion, such as by wires, not shown, engaging the piping P- connected with the pipe fitting 35.0r any part of the grout ing outlet. The concrete is then. poured-withinthe form F, and after it has; hardened, the form is. removed, This. exposes the. outlet means. and: particularly the threaded outlet or the chamber. The. cap. 43 isremoved from the end of.- thethreaded outlet or OlltlfillCOIiDBCtiOnz L. z

In case a. pipe fitting has notv been initially providedwith the outlet, means 30,, then, any suitable pipe fitting: or: even thev end, of aplne. may ,be secured. in. the hole 32 of the: outlet means 31! to form a. connection with the. pipe system for conducting grouting to the. grouting outlet. The threaded outlet 41; may for all purposes be regarded as the end of a pipe or pipe system,

The. cover means 36. with, the yieldable; means 5.0 attached thereto is; placed over the outlet means. 30. and rotated. so that the threadedsleeve 5.1 is threadedupon, the outlet. oroutlet; connection 4]. It is evident, therefore, that. this threaded outlet. also serves.- asa part. of the securing means, The securing means,.which includes the. yieldable, means; 50, holds-thecover; means firmly attached: to the outlet, means. 31k and brings: the flanges 3i and 41- into contact; with each other so that. a seal is obta'med thereby against concrete flowing into the chamber with.- in the; grouting outlet. Concrete thenpoured to form the second block of concrete, The con:- crete. surrounds the cover means. 41$ so that. it and the extensions; or anchorage. means 56.. are firmly embedded in the, concrete). When]. the second concrete. block contracts: during: .the hardening process, the. yieldablie. 52 stretch or bond as, the cover meanspulis away from the outlet means, as shown in Figure 7. and the separation. of these two, parts-.opens the. chamber to the crack between. the concrete blocks. When grouting is pumped. through the piping. system, the grouting passes: through the outlet connection 41 into the chamber withinthe grouting outlet and then out between the flanges 3t and 4.7: into the crack between the: twoconcrete blocks. With these cracks filled, theconcrete structure: becomesv a continuous mass of cor-rcrete. l

Inthe second form of grouting outlet, illush trated in Figures ,8 through 12,'two separableparts are provided, one of which is the outlet means 30. The outlet means and the pipe fitting 34 secured thereto are identical with these parts shown in Figures 1 through 7,,although the threaded outlet or outlet connection 4| may be longer in ,the first form if desired. These two parts need not be again described and they have received the same numbers as the like. parts shown in Figures 1 through 7.-

.In the second form of construction, the .yield able means 62'is attached to or carried byv the outlet means 30, rather than by the cover means as in the first form. The yieldable means has a hole 63 therethrough which receives ,the threaded outlet 4|. The nut 42 is then'screwed on the threaded outlet so that this nut holds both the outlet means 30 and the yieldable means 62 upon the threaded outlet. The yieldable means has at least one yieldable arm 61 which is provided with one or more abutments 64. Each arm also has a pin or nail hole 65 for receiving a pin, nail 66, or the like, which with the abutments 64 secures the cover means to the yieldable arms, as will be described.

The arms filhave extensions 68 which form anchorage means to anchor the cover means in a block of concrete. Each arm may have a hole 69 therein spaced from the cover means. It is to be understood that the anchorage means need not be extensions of the yieldable arms, but may be any suitable means which is secured to the coverv means and projects outwardly therefrom.

The securing means, which retain the two separable parts of the grouting outlet together, include the yieldable means 62 with their abutments 64, the threaded outlet 4| and the nut 42. In other words, the threaded outlet again serves a double function, namely, to secure the outlet means 30 to the pipe fitting 34 and also, with the yieldable means serving as part of the securing means, to attach a cover means 12 to the outlet means.

The cover means may be cupsha ped, although it need not necessarily be so shaped. The cover means has a peripheral flange 73 for cooperatively engaging the peripheral flange 3| on the outlet means 30. A pair of spaced slots 14 pass through the cover means through which the extensions 68 of the yieldable arms 61 pass.

In the second form of construction, the yieldable arms with their extensions are bent or folded down into the chamber formed by the cupshaped outlet means, as shown in Figures and 11. These arms are bent completely below the face of the flange 3| so that the outlet or cup-shaped means 30 can be placed against a concrete form, as shown in Figure 11, with the flange fiat thereagainst to form a seal against concrete flowing into the chamber.

After the concrete for the first bloclg has been poured, hardened, and the form removed, the yieldable arms 61 and extensions 68 are bent outwardly into the position shown in Figures 8 and 9. The cover means 12 is then positioned upon the outlet means 30 with the anchorage n ea s r x e ens 8 nd eldab ar s 61 passing through the slots 14, The ahutments 64 are so positioned that the flanges 3| and H come into contact with each other without inter- .ference from the abutmen s. One or more nai 66 is then forced into the holes 65 which firmly holds the cover means against the outlet or cup-. shaped means 30 with their flanges in contact. A second pin or nail 16 may then be passed through the holes 69 to more definitely assure that the extensions are firmly embedded in the second concrete block.

Concrete is then poured to form the second concrete, block in which the cover means 12 is embedded. jWhen this second block hardens and contracts during the hardening process, the embedded extensions 68 move therewith, whereupon the abutments: 64 engage the inner side of the cover means and pull the latter with the second concrete block, so that the cover means becomes separated from the outlet means, as shown in Figure .12. The yieldable arms 6'! permit the cover .or cover means to be pulled away from the outlet or cup-shaped means.

The third form of the invention, illustrated in Figures 13 through 17, shows a construction having some similarity to that illustrated in Figures 8 through 12, but differs therefrom in that the grouting outlet is, and particularly the pair of separable parts are, at all times assembled, even when the first concrete block is assembled. In this construction, the pipe fitting 34, illustrated, is identical with that shown in Figures 1 through 12 and hence will not be again described. It is to be understood, however, that with this third form of grouting outlet, as with theother forms. any type of construction of pipe fitting may be used, that particularly shown in the drawings being merely illustrative or preferred.

Two separable parts are used to construct the third form of grouting outlet which includes an outlet means which is cup-shaped to form a chamber and has a peripheral flange 8| for engagement with a concrete form. The outlet or cup-shaped meanshas an inlet or hole 82 through which the threaded outlet 4| of the pipe fitting 34 extends. The wall 83 of the outlet means is preferably inclined so that the larger diameter of the outlet means is at its open end.

A cover means 86 is, the other separable part of the third form of grouting outlet and has an inclined peripheral flange 87, the angularity of which corresponds with the angle of the inclined wall 83 of the outlet means. A pair of spaced slots 88 are shown passing through the cover means.

A securing means is used to retain the two separable parts in assembled relation and includes'a yieldable means 9| having a threaded sleeve 92 from which project a pair of yieldable arms 93. lhe yieldable arms are secured to the cover, means in any suitable fashion such as by spot welding 94. Although the yieldable arms are shown as being permanently secured to the cover means, it is to be understood that a securable connection which is not permanent is an equivalent construction for this as well as the other forms. The threaded sleeve 92 receives the threaded outlet 4| of the pipe fitting 34 so that this threaded outlet is part of the securing means. As in the other forms of construction the threaded outlet serves a double function namely, to attach the pipe fitting to the cup shaped outlet means and, as part of the secure ing means, to yieldably secure the cover means to the outlet means. It should be noted also that the threaded sleeve 92 performs two functions in or. the pipe fitting.

Anchorage means are provided to more securely retain the cover means in a concrete block and may be of any suitable construction. Preferably, however, each yieldablearm 93 carries an extension 95 which passes through a spaced slot 88 in the cover means 86. The extensions- 95 may have notches 96 therein to more firmly anchor. these extensions-within a concrete block. In using the third form of grouting outlet shown in Figures 13 through 17, the cover means 35 is attached to the outlet means 80 by manipulating or turning the cover means, whereby the sleeve 9% of the yieldable means BI is threaded upon the threaded outlet-or connection 4! of the pipe fitting 34'. The threaded sleeve 52 serves also as a nut for retaining the outlet means 8d upon the outlet connection. The cover means is smallerin diameter than the outlet means so that it is received or nests within the latter with its inclined periphery in engaging the inclined wall 83 of the outletmeans. The cover means is then completely below the plane of the form-engaging periphery or flange 8i which engages a form: F as shown in Figure 16. With the cover means secured to the threaded outlet M, the extensions 95 are bent down so that they, too, come within or below the plane of the flange 8|. The grouting outlet, therefore, a complete assembled unit, and when so assembled, may be mounted against the form F with the peripheral flange 8! in contact with the form; The cover means, securing-'means, andanchorage means are all within the cupshaped outlet means. r v After the first concrete block has'been poured so that the entire grouting outlet, or particularlytheoutlet means 89 and pipe fitting 34, is embedded therein and the concrete has hardened, the form F is removed. This exposes the anchorage means, formed by the extensions 95, so that the extensions may be bent outwardly as shown in- Figures 14. and 17. The second and adjacent concrete block is then poured, and when it hardens, the anchorage means 95, now firmly embedded therein, pulls the cover means 86 away from the outlet means- 80. The yieldable arms 93 of the securing means permit this separation of the two parts of the, grouting outlet. The separation ofthe twoparts permits grouting from the piping system to flow through the threaded outlet 4| into the chamber within the grouting outlet, and out through the space be-- tween the-cover means and the outlet means into the crackbetween the two concrete blocks formed by contraction of the hardening concrete block or blocks.

Figures 18 through 22 illustrate a fourth form of the invention. In this form. a pipe fitting N30 is providedwhich is much like that-illustrated in Figures '1 through 1'7, exceptingthat the threaded outlet or outlet connection [0! is sealed at its end and outlet passages 12 are provided in the sides thereof.

An outlet means H16 ispreferably cupshaped in form and has a hole or inlet opening I01 in which the threaded outlet I!!! is received. A nut Hi3 secures the outlet means to the threaded outlet. The outlet means preferably has a pcripheral flange I08 for engaging a concrete form. A cover means 1 H is of the same shape 'as the outlet means I06 and carries a threaded sleeve H2. The cover means hasanchorage means secured thereto in the form of extensions H3, two of which are carriedby the cover means and are attached in any suitable fashion thereto, the construction particular-1y illustrated showing the extensions asbeing integral with the cover means and extending outwardly from the periphery: thereon. I r v p In this-fourth form of construction, the out-. let-means [-06- with the pipe fitting I00 attached thereto by means of the threaded outlet- Hill is placed with its flange 108 against a concrete term, as described and illustrated in the other. forms of the invention After the first concrete block has been poured, embedding the pipe'syse tom, the pipe fitting and the outlet means therein, the form is removed which exposes the chamberinthe outlet meansand-hence exposes the threaded outlet H The cover means Hlhas its sleeve H2 threaded upon the inletconnection lal by manipulationorrotation of, the cover. means so that the open side ofthe outlet means is closed thereby. The extensions 3 are bent outwardly so that they will become embeddedin the concrete of the second andadjacent concrete block. The closed end of the outlet con-. nection with the cover means HI completely closes thechamber within the grouting. outlet. It will be understood that any suitable means may be used to close the opening formed by the sleeve H 2, which closing need notnecessarily be accomplishedby closing theend of the outlet connection HM. Any other suitable closing-methodiscontemplated.

Upon contraction. of the second and adjacent concrete block during itshardening.'process,;the extensions H-tembedded therein move therewith which pulls on the cover means HI. The. cover means is yieldable so that it deforms or bends to separate the cover means from the peripheral flange [08. of the outlet means I06. The sepa-. ration of the cover means from the outlet means need not be over the entire periphery of the flange I88 so long as a substantial, separation does occur, whereby groutingpumpedthrough,

the piping system will pass through. the grouting outlet into the crack formed between thetwo concrete blocks. The; various forms of grouting outlets. illustratedanddescribed .hereinindicate the scope of the inventionand themany varied forms in which the invention maybe practiced; These various forms illustrate that the yieldableme'ans may-be carried either. by the outletfmeanslor member, or the cover means or member,- and,

it isimmaterial to which of these two means or members the yieldable means is attached. Also,v

although the yieldable means isshownpermanently attached to the cover means in the forms shown in Figures l through '7 andFigures 13 through 22, it is to be understood that such permanent attachment is not essential. The anchorage means is preferably formed by extension of the yieldable arms of .the securing means, although it is evident .that the anchorage means may be separate and need not be extensions of the yieldable means. The making of theyieldable means and anchorage extensions integral is merely for the sake of simplicity, reduction in the number of parts, and ease of assembly and use of the grouting outlet.

In the broader aspect of the invention, it is,

immaterial. how the cover means is securedto the outlet means. In each of the constructions illustrated herein, the pipe fitting, or particularly the threaded outlet or outlet connection there'- of, isutilized for a double purpose, first, to secure the outlet means to the pipe fitting,'and,sec ondly, to secure the cover means to the pipe fitting which in effect and operation is the s ecuring of the cover means to the .outlet meansq It is evident, therefore, that the threaded outlet 4| forms part of both the outlet means and the pipe fitting. It is clear, too, that the pipe fitting need notform a part of the complete grouting outlet, since the end of a pipe projected through

thehole

32, 82 or I01 provides the full equivalent of the outlet connection 4| which is used with the first three forms, or the threaded outlet IUI which is used with the fourth form of Figures 18 through 22.

The invention of the grouting outlet described and illustrated herein uses one element which heretofore has not been known. This element is the securing means, or particularly the yieldable means, and it forms an article of manufacture which is new and novel when used with an inlet means, cover means, or other fittings which may be purchasable separately on the market. This securing means is designed to be received within a chamber, formed by the grouting outlet, in which either the inlet means or the cover means is cup-shaped, although both may be so shaped if desired.

The first three forms of grouting outlet illustrated and described show both the outlet means and the cover means as being cup-shaped. The fourth form of the invention illustrates the fact that it is not essential for both of these means to be cup-shaped. It is evident that only one of these means need be cup-shaped to provide a chamber within which the yieldable means is received.

7 It is to be noted that the cover means and the yieldable means form a new article of manufacture which can be assembled with means manufactured for and useful in other fields and hence may be used as outlet means. Various forms of pipefittings can be used with such outlet means to form a grouting outlet having the advantages of the combination of grouting outlet parts described herein.

This invention is presented to fill a need for improvements in a grouting outlet. It is understood that various modifications in structure, as well as changes in mode of operation, assembly, and manner of use, may and often do occur to those skilled in the art,especiallyafterbenefitting from the teachings of an invention. Hence, it will be understood that this disclosure is illustrative of preferred means of embodying the invention in useful form by explaining the construction, operation and advantages thereof.

What is claimed is:

1. A- grouting outlet for use between separately formed concrete blocks comprising two separable parts including an outlet member having an inlet hole therethrough, and a cover means adapted to be fitted to the outlet member, at least one of said separable parts being cup-shaped to form a closed chamber within the two parts; securing means carried by the two separable parts and within the chamber to secure the same together including yieldable arms whereby an opening is formed in the grouting outlet between the two separable parts upon contraction of one of said concrete blocks, and means carried by one of said separable parts which is secured to and projects outwardly beyond the cover means to anchor the latter in a block of concrete.

2. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup-shaped means having a hole therethrough, and a cover means adapted to be fitted to the cup-shaped means thereby forming a closed chamber therebetween; a pipe fitting 3. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup shaped means having a hole therethrough, and a cover means adapted to be fitted to the cup-shaped means thereby forming a closed chamber therebetween; a pipe fitting having a threaded outlet extending through the hole in the cup-shaped means and secured therein; securing means within the chamber to secure the separable parts together including the threaded outlet, and yieldable arms whereby the two separable parts pull apart to form an opening therebetween upon contraction of one of the concrete blocks; and slots in the cover means through which the yieldable arms pass and project outwardly beyond the cover means to anchor the latter in a block of concrete.

4. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup-shaped means having an inlet hole therethrough, and a cover means adapted to be fitted to the cup-shaped means, the two separable parts forming a closed chamber therebetween; a pipe fitting having a threaded outlet extending through the inlet hole in the cup-shaped means and secured therein; securing means within the chamber to secure the separable parts together including the threaded outlet, and yieldable means secured to the cover means including a threaded hole to receive the threaded outlet whereby the two separable parts pull away from each other to form an opening therebetween upon contraction of one of the concrete blocks; and means carried by and projecting outwardly beyond the cover means to anchor the latter in a block of concrete.

5. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup-shaped means having a hole therethrough, and a cover means adapted to be fitted to the cup-shaped means, the two separable parts forming a closed chamber therebetween, a pipe fitting having a threaded outlet extending through the hole in the cup-shaped means; securing means within the chamber to secure the separable parts together including the threaded outlet, and yieldable means having a threaded hole to receive the threaded outlet, the yieldable means being secured to the cover means whereby the two separable parts are held together and pull apart to form an opening therebetween upon contraction of one of the concrete blocks; and means carried by and projecting outwardly beyond the cover means to anchor the latter in a block of concrete.

6. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup-shaped means having an inlet hole therethrough, and a cover means adapted to be fitted to the cup-shaped means, the two separable parts forming a closed chamber therebetween; a pipe fitting having a threaded outlet extending through the inlet hole in the cup-shaped means; a nut received upon the threaded outlet to hold the cup-shaped means thereupon;

securing means within the chamber to secure the separable parts together including the threaded outlet, and yieldable arms secured to the cover means and having :a threaded hole to receive the threaded outlet, whereby the two separable parts pull away from each other to form an opening therebetween upon contraction of one of the concrete blocks; and means carried adapted to be fitted to thecup-shaped means, 2

the two separable parts formingza'closed chamber therebetween; a pipe fitting having athreaded outlet extending through the inlethole in-the cup-shaped means; a nut received upon the threaded outlet to secure the cup-shaped means thereupon; securing means within the chamber to secure the separable parts' together including the threaded outlet, and yieldable arms secured to the cover means and having athreaded hole to receive the threaded outlet,'whereby the two separable parts pull away from each other :to form an opening therebetween upon contraction of one of the concrete blocks; and means carried by and projecting outwardly beyond the cover means tov anchor the latter -in a blockof concrete including a pair of spaced slots in the cover means, and extensions upon the yieldable arms projecting through the slots.

8. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup-shaped means having an inlet hole therethrough, and a cover means adapted to be fitted to the cup-shaped means, the two separable parts forming a closed chamber therebetween; a pipe fitting having a threaded outlet extending through the inlet hole in the cup-shaped means; a nut received upon the threaded outlet to secure the cup-shaped means thereupon; securing means within the chamber .to secure the separable parts together including the threaded outlet, and arms extending along the 'cover means and spot welded thereto, the arms extending away from the cover means and having a threaded hole spaced from the cover means to receive the threaded outlet, and the arms being bendable between the spot weld and the threaded hole whereby the two separable parts pull away from each other to form an opening therebetween upon contraction of one of the concrete blocks; and means carried by and projecting outwardly beyond the cover means to anchor the latter in a block of concrete.

9. A grouting outlet for use with separately poured concrete blocks in the pouring of which a form is usedcomprising two separable parts including a cup-shaped member having an inlet hole therethrough forming a grouting inlet and a form-engaging periphery, and a cover means fitted within the cup-shaped member so that it sets below the form-engaging periphery whereby the separalble parts may be assembled at all times, the two separable parts forming a closed chamber therebetween; securing means within the chamber to secure the two separable parts together including yieldable means whereby the two separable parts pull away from each other to form an opening therebetween upon contraction of one of said concrete blocks; and means projecting outwardly a substantial distance beiyond the cover means to anchor the latter inea block of concrete. 1 I t 10. A grouting outlet for use with separately poured concrete :blocks inl the. pouring-of which a'form is used comprising two separable parts including a cup-shaped member havingan inlet hole 'tl'ierethroughand a form-engaging periphery, and a cover means fitted withinthe cupeshaped member'so that it sets below the formengaging periphery whereby the separable --parts may be assembled'at all times, the two separable parts forming a closed chamber therebetween; a :pipe fitting having an outlet extending through the inlet hole in the cup-shaped memberinto the chamber; securing means with- ;in 'the chamber to secure the two separable-parts and the pipe fitting together including the outlet, and yieldable means whereby the two separable parts pull away from each other to form an openingtherebetween upon contraction of one of said concrete blocks; and means adapted tobe projected outwardly a substantial distance ,beyond the covermeanst-o "anchor the latterin a block of concrete and foldable below the formengaging periphery; s

11. A grouting outlet for use with separately poured concrete blocks in the pouring of which a form is used comprising two separable parts including a cup-shaped member having anflinlet hole "therethrough and a; form-engaging periphery, and a cover means fitted within the cu'pshaped member so that it setslbelow the torme'ngaging periphery whereby the'separable parts may be assembled at all times, the cover means having a pair of spaced slots therethrough, the two separable parts forming a closed chamber therebetween; a pipe fitting having an outlet extending through the inlet hole in the cupshaped member into the chamber; securing means within the chamber to secure the two separable parts and the pipe fitting together including the outlet, and yieldable arms whereby the two separable parts pull away from each other to form an opening therebetween upon contraction of one of said concrete blocks; and each yieldable arm having an extension which passes through a slot in the cover means and foldable below the form-engaging periphery, the yieldable arms being foldable outwardly beyond the :cover means to anchor the latter in a block of concrete.

12. A grouting outlet for use with separately poured concrete blocksin the pouring of which a form is used comprising two separable parts including a cup-shaped member having an inlet 7 hole therethrough and a form-engaging periphery, and a cover means fitted within the cupshaped member 'so that it sets below the formengaging periphery whereby the separable parts may be assembled at all times, the cup-shaped member having inclined sides, the cover means having inclined sides which engage the inclined sides of the cup-shaped member, the two separable parts forming a closed chamber therebetween; a pipe fitting having a threaded outlet extending through the inlet hole in the cupshaped member into the chamber; securing means within the chamber to secure the two separable parts and the pipe fitting together including the threaded outlet, yieldable arms whereby the two separable parts pull away from each other to form an opening therebetween upon contraction of one of said concrete blocks, and a threaded hole to receive the threaded outlet; and anchorage means carried by the cover means and projecting outwardly beyond the latter toanchor the same in a block of concrete. l i

13. A grouting outlet for use with separately poured concrete blocks in the pouring of which a form i used comprising two separable parts including a cup-shaped member having an inlet hole therethrough and a form-engaging periphery, and a cover means fitted within the cupshaped member so that it sets below theform-engaging periphery whereby the separableparts may be assembled at all times, the cup-shaped member having inclined sides, the cover means having a pair of spaced slots therethrough and inclined sides 'Which engage the inclined'sides of the cup shaped member, the two separable parts forming a closed chamber therebetween; a pip fitting having a threaded outlet extending through the inlet hole in the cup-shaped member, into the chamber; securing means within the chamber to secure the two separable partsand the pipe fitting together including the threaded outlet, yieldable arms whereby the two separable parts pull away from each other to form an opening therebetween' upon contraction of one of said concrete blocks, and a threaded hole to receive the threaded outlet; and each yieldable arm having an extension which passes through a slot in the cover means and foldable below the form-engaging periphery, the yieldable arms being bendable outwardly beyond the cover means to anchor the latter in a block of concrete.

' 14. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup-shaped member having an inlet hole therethrough and a yieldable cover means adapted to be fitted to the cup-shaped member, the two separable parts forming-a closed chamber therebetween; securing means within the chamber to secure the separable parts together whereby at least a part of the yieldable cover means pulls away fromthe cup-shaped member to form an opening therebetween upon contraction of one of Tsaidconcrete blocks; and means carried by the cover means and projecting outwardly a substantial distance beyond the same to anchor th latter in a block of concrete.

15. A grouting outlet for use with separately formed concrete blocks comprising two separable parts including a cup-shaped member having an inlet hole therethrough, and a yieldable cover means having a threaded hole therein and adapted .to be fitted to the cup-shaped member, thetwo separable parts forming a closed chamber therebetween; a pipe fitting having a threaded outlet extending into the inlet hole in the cupshaped member and engaging the threaded hole in the cover means to secure the separable parts together whereby at least a part of the yieldable cover means pulls away from the cup-shaped member to form an opening therebetween upon contraction of one of said concrete blocks; and

means carried by the cover means and projecting outwardly a'substantial distance beyond the same to anchor the latter in a block of concrete.

HUBERT EARL WOODRING.