US2805462A

US2805462A - Concrete forms

Info

Publication number: US2805462A
Application number: US434252A
Authority: US
Inventors: Chandler Wesley Miles; Heuser Paul Fred; Smith Kenneth Carl
Original assignee: Wilbert W Haase Co
Current assignee: Wilbert W Haase Co
Priority date: 1954-06-03
Filing date: 1954-06-03
Publication date: 1957-09-10
Anticipated expiration: 1974-09-10

Description

SePtf 10, 1957 w. M. CHANDLER p -rAL v2,805,462

CONCRETE FORMS 5 Sheets-Sheet 1 Filed June 5. 1954- i mi Sept. 10, 1957 w. M. CHANDLER ETAL CONCRETE FORMS Filed June 3. 1954 5 Sheets-Sheet 2 hv'arlzew w. M. CHANDLER Erm. 2,805,462

CONCRETE FORI-JIS Sept. 1o, 1957 5 Sheets-Sheet 5 Filed June 3. 1954 SePt- 10, 1957 w. M. CHANDLER Erm. v 2,805,462 A CONCRETE FORMS 5 Sheets-Sheet 4 June 3' V d H Z w. M. CHANDLER ETAL 2,805,462 K sept. 10, 1957 CONCRETE FORMS 5 Sheets-Sheet 5 Filed June 3. 1954 United States CNCRETE FORMS Wesley Miles Chandler, Paul Fred Heuser, and Kenneth Carl Smith, St. Baul, Minn., assignors to Wilbert W. Y Haase Co., Forest Park, lll., a corporation of illinois Application June 3, 1954, Serial No. 434,252 7 Claims. (Cl. 25-130) This invention relates to forms and, more particularly, of the type particularly well adapted for molding burial vaults, septic tanks, hollow blocks, and the like.

It will be understood that reference hereinafter to burial vaults, and the like, is merely by way of illustration and not by way of limitation and that forms embodying the principles of our invention may be constructed and used for forming other articles without departing from the purview of our invention.

A primary object of our invention is to afford a novel form which may be released from the finished burial vault, lor the like, in a novel and expeditious manner.

Another object of our invention is to enable a form of the aforementioned type to be constructed which embodies a novel core which may be loosened from the linished burial vault, or the like, in a novel and expeditious manner.

Yet another object of our invention is to enable a core of a burial vault form, or the like, to be shrunk in length and width in a novel and expeditious manner.

A further object of our invention is to enable portions of the core of a form to be readily moved relative to each other in a manner effective to loosen the core from the finished burial vault, or the like, in a novel manner.

. Another object is to enable a core of the aforementioned type to be constructed in such a manner that vari- .ous portions thereof may be moved vertically and laterally and longitudinally relative to each other to thereby vary the size of the core in a novel and expeditious manner.

Another object of our invention is to afford a form of the aforementioned type wherein the core thereof may be quickly and easily released from the finished burial vault, or the like, and may then be quickly and easily restored to operative position, in a novel and expeditious manner, for repeated use.

Other and further objects of the present invention will be apparent from the following description andclaims and are illustrated in the accompanying drawings which, by way of illustration, show preferred embodiments of the present invention and the principles thereof and what we now consider to be the best mode in which we have contemplated applying these principles. Other embodiments of the inventions embodying the same or equivalent principles may be used and structural changes may be made as desired by those skilled in the art without departing from the present invention and the purview of the appended claims.

. In the drawings:

Fig. 1 is a longitudinal sectional view taken through a burial vault form embodying the principles of our invention and showing the core thereof in side elevation with certain portions broken away to show the internal construction thereof; I

Fig. 2 is a detailV sectional view taken substantially along the line 2-2 in Fig. 1;

Fig. 3 is a sectional view somewhat similar to Fig. l

2,805,462 Patented Sept. 10, 1957 but showing the parts thereof disposed in different operative position.

Fig. 4 is a sectional view taken substantially along the line 4-4 in Fig. 1;

Fig. 5 is a sectional view taken substantially along the line 5-5 in Fig. 4;

Fig. 6 is a sectional view taken substantially along the line 6 6 in Fig. 4;

Fig. 7 is a sectional view taken substantially along the line 7-7 in Fig. 4;

Fig. 8 is a detail sectional view taken substantially along the line 8-8 in Fig. 7; and

Fig. 9 is a detail sectional view taken substantially along the line 9-9 in Fig. 7.

For the purpose of illustrating the preferred embodiment of our invention, a form 20 is shown in Figs. l to 9, inclusive, of the type adapted to mold a suitable receptacle such as, for example, the box portion V of a burial vault.

The form 20 comprises, in general, Figs. l and 4, an inner housing or core C mounted on a supporting member or base B, and a suitable outer housing or shell, such as the housing H, mounted on the base B over the core C to thereby form a mold for forming a box V.

In general, during the operation of the form 20, the core C is mounted in operative position on the base B, and the housing H is mounted on the base B outwardly of the core C and in spaced parallel relation thereto. The material from which the box V is to be formed may then be poured into the space between the core C and the housing H. After the material from which the box V is formed is suitably hardened the box V may then be raised off from the core C, removal of the core C from the box V being facilitated by novel means embodied in our invention, as will be discussed in greater detail presently. During this operation of raising the box V the outer housing H is allowed to remain in position on the box V to facilitate gripping and handling the assembly.

The base B, Figs. 1 and 5, comprises a substantially rectangular shaped frame embodying two

end members

22 and 23, Fig. l, and two

side members

24 and 25, Fig. 5. Suitable braces such as transversely extending

braces

27 and 28, and longitudinally extending braces 29, Figs. 3 and 5, are disposed between the members 22--25 of the base B for strengthening and re-enforcing the base Bl The members 22-25 and braces 27-29 are preferably formed of channel shaped steel structural members and disposed in inverted position with the web thereof disposed in upwardly facing, substantially horizontal position.

Four pairs of elongated retaining members or

braces

31 and 32, 33 and 34, 35 and 36, and 37 and 38, respectively, are mounted on the top surface of the members 22-25, respectively, with each of the pairs of braces 31-38 disposed in longitudinally extending position on the respective side members 22-25 in spaced parallel relation to each other.

rllhe braces

31, 34, 3S and 38 are the outwardly disposed braces of theV respective pairs, and the

braces

32, 33, 36 and 37 are the inwardly disposed braces thereof.

The braces 31-33 may be made of any suitable material, but we prefer to make them of angle iron, each having an upwardly projecting leg 41 and a horizontally disposed leg 42, the latter leg 42 being mounted on the top surface of the respective side member 22-25 and being secured thereto by any suitable means such as welding.

Guide members 44 are mounted on the top surface of each of the side members 22-25 in spaced relation to each other along the inner braces, 32, 33, 36 and 37, Figs. 1, 2 and 6. Each of the guide members 44 cornprises a substantially vertical leg 46, Fig. 2, and a down- W'll'y and lfWTdlY 'Sloplg leg 48, the Vertical leg being secured to the innerl peripheral edge of the respectiye side member A22-26 and the leg 48 sloping downwardly and outwardly from 'the upper end of the leg 46 intov engagement with the upper edge of the verti'calrllan'ge 41 on the respective

corresponding braces

32, 33, 3 6` and 37 to thereby aiord means for guiding the core "C downinto operative positionja'round theV

inner braces

32, 33,36 andj37 when the core C is being mount- 'd'in 'operative position on 'the 'base B.

VThe coreY C, Figs. l and 5, comprises two substantially vertically disposed end walls 4v51 and 52 and two substantially vertically disposed side walls 53- and 54. Each ofthe walls 5'1-54 hasV 'an inwardly projecting ilange 5 6 disposed on the upper end thereof, and a substantially flat rectangular-'shaped removable cover member or top plate 5 8 loosely rests on the flanges 56. The top plate 58 is preferably ofjsuchsize that 'the outer edges thereof are disposed' just inwardly -of vertical alignment with the outer faces `ofthe, corresponding walls 51-54 of the core C when the core Cis disposed in operative position on the base B for the reception of vault or box forming material therearound. The Walls 51-54 and the top plate 58 of the 'core C may be made of any suitable material such as, for example sheet steel. f

Re-enforcing members in the form of

angle irons

61 and 62 are attached to the inner faces of the side walls 5,3 and 5'4, respectively, by suitable means such as welding and extend longitudinally along the

side walls

53 and 54 in substantially parallel relation to each other and to the bottom edges of the

side walls

53 and 54 in spaced relation to the latter. Similar other re-enforcing members 64, Figs. l, 5 and 7 may 'also be mounted at other locations on the inner Aface of the side walls 51-54 of the 'core C, as clesired, tore-enforce the latter.

Two posts 66 and 67, Figs. 4 and 7, are mounted on opposite end portions of the cross member 27 and project upwardly and inwardly therefrom. The upper end portions ofthe p'osts 66 and 67 are braced in such 'inwardly projecting 'positionby a suitable elongated brace member 68 'extending therebetween, Fig. 7. Similarly, two

posts

71 and 72 are mounted onopposite end portions of the cross brace zsof' the base B and are braced at their upper end' Vportions by a bracing member 73 extending therebetween, Fig. 4.

Four pawls, 75, 76, 77 and 78 at 'their lower end portions to the lower end portions of the posts 66, 67, 7 1 and`72, respectively, by suitable meanssuch as bolts 81, Figs. 4 and 7. Each of the pawls 75;?8 lhasan upwardly "facing, outwardly projecting

ear

75o, 76a, 77`a and' 78a, respectively, disposed at its upper 'end portion, Figs. 4 and 7.

Two sleeves 83 vand 84, Pigs. V1, '4 and 7, are mounted on and project upwardly from the longitudinal center portions vof `the

cross braces

27 and 28, respectively. Two ysha'ft's 86 and 87 `are journalled in the sleeves 83 'and 84, respectively, and two

disks

89 and 90 are mounted on the upper end portions of the shafts 86 and 87 for rotating Vmovement relative to the

sleeves

83 and 84. The lower end portions of the shaft 86 projects downwardly below the sleeve 83 and a handle 92 is connected to the lower end portion of the shaft 86 and projects outwardly from the base B to afford readily accessible means for manually rotating the shaft 86 from a position. outwardly of the base B. The disks 89 and 9'0 'are operatively connected together by a link 94 extending 'therebetween so that rotation of the disk 89 is elec'tive to rotate the disk 90. The upper end portions of thepawls 75 andV 76 'are connected to the disk 89by suitable links, 96 and 97, Figs. 4 and 7 so that oscillation 'of thefdisk 891 is effective4 to-move theupper end portions ot'- t-he ypawls 76 and `7'6 inwardly 'and outwardly 'around the pivots 81,., Likewise, the upper endy portions of the pawls 77 and-lS-,fare connected tothe disk 9 0by suitableVY are pivotally mounted

links

98 and 99, respectively, so that the pawls 77 and 78 are 'Siilily 'aflltel 'pbl oscillation of 'the "disk '90. A spring 101 is connected at'jone end to the handle 92 and at the other end to the cross brace 29 in position to urge the handle 92 and, therefore, the shaft 86, to rotate in a counterclockwise direction, as viewed in Fig. 4, and thereby urge the upper end portions of pawls -78 outwardly toward the

adjacent wall

53 or 54 of the core C.

In normal position, the ears 75a-78a on the pawls 75-78 are -disposed'in overlying spaced relation to -the bracing

members

61 and 62, the ears-75a and 77a being disposed above the bracing member. 61 and the

ears

76a and 78a being disposed above the bracing member 62. When the core C is Vlifted upwardly inthe vault forming operation of our n'ovel form 20, as will be discussed in greater detail presently, the bracing

members

61 and 62 engage the lower portions of the ears 75a and 77a, and the

ears

76a and 78a, respectively, and cam the pawls 7`S78 inwardly against the urging of the spring 101. When the bracing

members

61 and 62 move upwardly past the upper vffaces of 'the Vears 7S'a-78t1, the spring -1,01 is effective Vvto move 'the pawls 75h78 outwardly into position wherein 'the ears '-75tz-78a are disposed beneath the bracing members 651- and 62e in position to support `the core C 1in elevated position. When it is desired to again lower the core C from this'upwardly supported position,

the handle 92y may be manually rotated in a clockwisedirection, as viewed in Fig. 4, against the urging of the spring 101 -t'o thereby Aretract the pawls 75-78 and permit the Acore `C to drop downwardly on to the baseY B, the guide members 44 serving to guide the core `C into proper position on the Abase B.

Each of the walls 51-54 of the core C is transversely split-from top to bottom along a

line

103, 104, 105 'and 106, respectively, Figs. 1 and 6, which are disposed at acute angles-to the horizon-tal. Thus 'it will be seen that the core C fis divided along the lines 103-'4106 into four corner section's108, 109, 110 and 1111, Fig. A4, the corner section 108 comprising the portion of the end wall 5,1

and the 4side wall 53 disposed between the lines 103 and 10:5; Athe corner portion 109 comprising the portionof the side wall 531'and-the end wall S2 ldisposed between 'the lines ,105- and i104; Vthe Vcorner VsectionV 110 comprising the portion of 'the-end Wall 552 Vand the sidewall 54

disposed betweenthe lines

104 and 106; and the cornersection 111 comprising the port-ionY of the 'side Wall 54 and the 'endv wall '51disposed between the

lines

106 and 103. Thus it will be seen are disposedI diagonally opposite to each other, are considerably shorter in Vlengthithan v'are the corner sections 109 and 1.11, which are, likewise, disposed diagonally opposite to eachother. .In the operation of our novel form .20, the comer sections Y108 and V1.10 are moved downwardly relative to the corner sections 109 and 1.1.1. along the pairsofflines 103 and'105, and 104'an'd A106, respectively, to facilitateremoval of the core C from a burial vault, or` the like, which has been molded there.- around, a's will be discussed in Vgreater detail hereinafter.

It will-be noted that; the

rlines

103 and 105 are disposed in theend wall 51 andtheside wall V53, respectively, in

position wherein the upper end portions of the lines 103' and 105 `arevdisposed in proximity to, but'inspaced relation to, the junction between the walls 51 and 5,3 and lines `103 and 105, slant downwardly and voutwardly away from the junction ofthewalls51 and 53. The lines 104 and A106 are similarly located relative to the junction between the end wall 52 and the side wall 54, the upper end portions of the `lines 104 and 1,06 being disposed relatively close to the junction between the walls 52 and S4 and sloping downwardly vand outwardly therefrom 'to the bottomfofthe waits szjand 54.

4In practice, we prefer that fthe linesv103 'and A105Y be disposed equal distances from, and at the same -diverging angle to, the junction 4of the yend vwa-ll 51 yand the side wall 53, and that the lines '104 'and 106 be similarly 75 positioned relative vto the .junction of the end wall 52 that the corner sections 108 land 110, which and the side Wall 54. In any event, so as to avoid tilting or canting of the corner sections 108-111 relative to each other upon movement of the

sections

108 and 110 downwardly relative to the sections 109 and 111, the

lines

103 and 104 should be disposed at equal but oppositely opening acute angles to the horizontal, and the

lines

105 and 106 should, likewise, be disposed at equal but oppositely opening acute angles to the horizontal.

Four

elongated track members

113, 114, 115 and 116 made of suitable material such as, for example, strap steel are mounted on the inner faces of the walls 51-54 of the core C in parallel overlying relation to the lines 103-106, respectively. Each of the tracks 113-116 is attached at its upper and lower ends to elongated spacing straps 11811 and 11811, respectively, Figs. 6, 7 and 9, and the spacing straps 11811 and 118b are attached to the upper and lower edge portions of the proper side walls 51-54 of the core C to thereby support the intermediate portion of each track 113--116, between the respective pair of straps 11811 and 118b, in proper operative position over the respective lines 103-106 and in spaced relation to the adjacent portions of the side walls 51-54. The tracks 113-116 are attached in this manner to the

corner sections

108 and 110, through their respective pairs of spacing straps 11811 and 118b, with the track 113 being attached to the end wall 51 between the line 103 and the side wall 53; the track 114 being attached to the end wall 52 between the line 104 and the side wall 54; the track 115 being attached to the side wall 53 between the lines 105 and the end wall 51; and the track 116 being attached to the side wall 54 between the line 106 and the end wall 52.

Four elongated slides or carriages 123-126 are slidably mounted on the tracks 113-116, respectively, Figs. l, 4 and 5. Each of the slides 123-126 has a substantially rectangular shaped opening extending longitudinally therethrough, Fig. 8, and the respective track 113-116 is disposed therein in snugly iitting but freely slidable relation thereto.

Four elongated mounting strips 12311-12611 are disposed adjacent to the slides 123-126, respectively, and are secured thereto by suitable means such as, for example, welding, Figs. 4, 7 and 8. Mounting strips 12311-12611 are secured to the

walls

51, 52, 53 and 54, respectively, adjacent to the

lines

103, 104, 105, and 106, respectively, but preferably spaced from the latter sufciently that theslides 123-126 and the tracks 113-116 may be disposed in such position that the longitudinal center lines thereof are disposed in overlying parallel relation to the lines 103-106, Figs. 4 and 5. The mounting strips 12311-12611 are attached to the corner sections 109 and 111, with the mounting strip 12311 being attached to the end wall 51 of the core C between the line 103 and the side wall 54, Fig. 5; the mounting strip 12411 being attached to the end wall 52 of the core C between the line 104 and the side wall 53, Fig. 4; the mounting strip 12511 being attached to the side wall 53 of the core C between the line 105 and the end wall 52; and the mounting strip 12611 being attached to the side wall 54 of the core C between the line 106 and the end wall 51. It will be noted that the upper and lower ends of the mounting strips 12311-12611 terminate substantially flush with the upper and lower edges of the respective side walls 51-54 to which they are attached, and that the slides 123-126 are attached to thelongitudinal center portions of the mounting strips 12311-12611 in spaced relation to the outer ends of the latter.

Two lifting members L1 and L2 are mounted in the core C adjacent to the

corner sections

108 and 110, rerespectively, Fig. 4. The lifting member L1 may comprise a suitable uid motor such as a pneumatically or hydraulically operated jack embodying a substantially cylindrical shaped casing or. housing 128 in which is mounted the usual piston or plunger 129. Two inlet and

outlet ports

131 and 132 are provided in the lower and upper end portions of 'the' housing 128, respectively, 'so-that suitable working uid such as, for example, compressed air may be fed into the cylinder 128 through the

ports

131 or 132 to thereby cause raising or lowering of the plunger. 129 in the housing 128 in the usual manner.y

The jack L1 is mounted in the cornersection 108 by suitable supporting means such as a bracket 134 attached at one side to the cylinder 128 and at the opposite side to the portions of the

walls

51 and 53 disposed between the

lines

103 and 105 by suitable means, such as, welding, Figs. 4, 5 and 8. Working uid may be fed into the

ports

131 and 132 through any suitable means but we prefer to use flexible lines such as

hoses

136 and 137, Fig. 4 which extend outwardly from the

ports

131 and 132, respectively, to coupling members 138 and 139 mounted on the outer face of the side member 24 of the base B to facilitate coupling of suitable pressure supplying means such as, for example, an air compressor, not shown, to the

lines

136 and 137.

The plunger 129 is connected to the slide 123 by an elongated link 143, Figs. 4 and 5, which is attached at itS. lower end to the slide 123 kby suitable means such as a bolt 147 and is attached at its upper end to the upper end portion of the plunger 129 by suitable means suchas a bolt 148. The upper end portion of the plunger 129 is also attached to the slide 125 by a link 145 connected at its lower end to the slide 125 by a bolt 149 and connected at its upper end to the upper end portion of the plunger 129 by the bolt 148, Figs. 4 and 5.

T he lifting member L2 is similar to the lifting member L1, comprising a housing or casing 12811 and a plunger or piston 12911, the casing having ports 13111 and 13211 connected to the coupling members 138 and 139, respectively, by suitable lines such as hoses 13611 and 13711, respectively. The plunger 12911 is attached to the slide 124 by a link 144 connected at its lower end portion to the slide 124 by a bolt 147a and connected at its upper end (portion to the upper end of the plunger 12911 by a bolt 14811. Similarly, the plunger 12911 is connected to the slide 126 by a link 146, the lower end portion of the link 146 being connected to the slide 126 by a bolt 14911 and being connected to the upper end portion of the plunger 12911 by the bolt 14811.

Hence it will be seen that when working uid such as, for exmple, compressed air, is fed under pressure into the coupling member 138, the air tlows through the coupling member 138 through the line 136 and 13611 and ports 131 and 13111 into the lower end portions of the housings 128 and 12811 and is thereby effective to raise the plungers 129 and 12911, relative to the cylinders 128 and 12811, respectively. Also, it Will be seen that when air is fed under pressure through the coupling member 139 it ows through the line 137 and 13711 and the ports 132 and 13211 into the cylinder 128 and 12811 to thereby etect lowering of the plunger 129 and 12911 relative to the cylinders 128 and 12811, respectively. Hence, it will be seen that with this arrangement, simultaneous raising and lowering of the plungers 129 and 12911 is etected by the introduction of working iuid under pressure into the coupling members 138 and 139, respectively.

t will be seen that with the parts of our novel core C disposed in the manner disclosed herein, raising and lowering of the plunger 129 and 12911 in the cylinder 128 and 12811 is effective to cause opposite relative longitudinal reciprocation of the

slides

123 and 125 and the tracks 113 .and 115, and of the

slides

124 and 126 and the

tracks

114 and 116, respectively, to thereby etect raising and lowering of the two corner sections 109 and 111 and the two

corner sections

108 and 110 relative to each other along the diagonally extending

lines

104 and 105, and 103 and 106, respectively, Fig. 3. Such relative movement of the

corner sections

109 and 111, and 108 and 110 is effective to shrink the core C in a horizontal direction both laterally and longitudinally so that when this operation is accomplished with the core C disposed in fa fcompleted burial vault, 4or the like, :it-.is effective to positivelylmove the walls 51--54' of the core C entirely u'tof engagement with the Ycorresponding `adjacent :side Wllslof the fburia'l vault. V

Two guide rods =f1`an`d 152, Fig. l, are 'attached at their-upper ends to the lower face -of the top plate 58 offjthe core C lbyf suitable means suchV as, for example, Welding. The guide-rods 151'and. 152 project downwardly from tthe top=platev58 and extend `into guide-sleeves 151i: and v15221, respectively, which are mounted at their ilower endsto E'the.longitudinally extending brace 29 in the base fguide sleeves 1511i and :15211 vextend upwardly from thejbrace-29 and terminate 'at theirupper lend .portions in spaced Vrelation rto .the top .plate 58 when the latter is disposed iin 'normal `opera/tive position on the walls 51"-54 of the core-fC. Two

chains

154 and 155 are'atta'ohed 4a-t one end to the lower face of the plate 58 adjacentto fthe guide rods l'151 'and 1752, respectively, Fig. 1. The

chains

154 and 155 depend from the plate 58 and are YVatt-ached at their other ends to the brace members 68;-73, respectively, Figs. l and 7. Chains 154 rand-'155Y1'a're of such length that when the top plate 58 lis disposed i'nl normal position on the walls 51-54 of the 'eore C -a suitable amount of slack lis alorded therein lso that the chains 1754 and 155 hang loosely from the ltop plate 58, Fig. l. However, the

chains

154 and 155 are of -sulliciently short length to insure that the tppla'te 58 rna'y not be raised from the walls 51-54 a suicient distance to pull the

guide rods

151 and 152 from the sleeves 151a and '152a so that, when the vault V fis lifted fro'm the core C the

chains

154 and 155 are eeotive-to pull the top plate 58fout of engagement with the top wall of the vault V and thereby permit it to drop back rdownwardly on the flanges A5'6' of the walls 51-54 of the core C, the guide rods -151Ya-nd 152 being effective toproperly :guide the top plate 58 `during this downward movement of the 'lat-ter.

From. the foregoing, Vit will be seen that i-n the operation 'of a form embodying our novel invention, the core C lr'na'y be` mounted on 'a suit-able base such as the base B 2in normal operative position such as shown in Fig. l wherein the plunger 129 and 129:1 are in retracted position and the upper edges of the walls 51-54 lie in the saine horizontal plane, with the top plate 58 disposed on the hail-ges 56 thereof. A suitable outer shell or housing such as the housing H :may then be mounted in operative position outwardly of the core C in position to define, with the E"core `C an area into which material for forming a receptacle "such as the box V of .a burial vault may be poured. As will be appreciated by those skilled in the art, any suitable type of outer shell such as, for example, the ltype of outer shell shown fin the United States Letters Patent No. 2,616,146, issued November 4, 1952 to Wilbert Haase, may be used and that ourinvention vis not limited to the particular .form of outer shell H shown inthe drawings, -this shell being shown merely for purposes of illustration.

The vault-forming material may then be poured through the opening -171 in the top of the housing H, Figs. 1 and 3, ,into the space between thehousing H and the 'core C and, after the material is suitably hardened, the outer shell H, the vault V and the core C, may be raised upwardly from the base B into position wherein the ears 75a-78a on the pawls l75-78 engage beneath the r'e-enforcing

members

61 and 62 in position to effectively support the outer shell H, theV vault V, the core C in 'such raised position.V Such raising of the shell H, vaultV V, and core C, may be accomplished by anysuitablefrnean's such as for example, a hoist, not shown, suitably engaged with 'the outer shell H vsuch as, for example, byfbeing connected to the 'trunnions 157 and 158 projecting outwardly .from the opposite end walls of the housing-1H, Fig. l.

Afterthe shell H, the box V and the core C have been raised to this position, a suitablesource of working uid such as, for example,'an `air compressor, maybe con. nected to the coupling member 13.8.to thereby feed com. pressed air through the hoses 1-36 and 136a into 'the lower ends of the cylinders 128.and 128:1 and effect out ward movement of the plungers 129. land 129a Vand the cylinders 128 and 128:2 relative to each other.

During this actuation of 'the lifting units L1 andrLZ, the core C, box V and housing H are supported inupwardly spaced vrelation to the base B by lthe -pawls V'75L-"'78 which are engaged vwith braces '61 and 155.. disposed on the portions of the side walls 53 and y54 whichfare embodied in the corner sec/tionsV 109 and 1;11. The weight of the box V and the housing H isvsulic'i'entto. maintain the braces 61 andj'62 in such engagement with 'the pawls -78 so that the vcorner sections 109 andv 1=11 of thev coreCare not raised 'bye the actuation` ofthe lifting units L1 and L2. Hence, f'su'ch actuation 'of' the lifting lunits L1 and L2 moves the cylinders 128 'and 128a downwardly along the pistons i129' and 129er,` and this is effective to move the Icorner '

setions

108 and 110 downwardly relative to lthe corner sections 109 and V1`1-1'andthe top .plate 5S into a position such` as -shown in `Fig. 3. During 'thisdownward movement'of "the

cornersections

108 and 110, the downv'vardl movement off the tracks 1-13--116 is effective -to cam the slides 123 and -125 inwardly towardV each other,V and the

slides

124 and 126 Ainwardly toward each other, 'to thereby maintain the corner sections 108- 111V in abutting relation to each other. Thus it will be seen that `-'the `'corner sections 108-11'1 are moved in apositive manner horizontally toward each other so that the core C is y'caused to shrink -both laterally and 1ongi -tudinally in a horizontal direction and the walls 51--5'4 are pulled inwardly ou't of'engagemen't with the respective adjacent walls ofthe box V. Y

Thereafter, the 'box V 'may be lifted from the core C by lifting at the -trunnions l157 and 158 on the outer shell by suitable means `such 'as a hoist, -not shown, and the outer shell H with the [box V disposed therein may Ybe thus raised from the core C. During this llifting-of the box V from the core C, the top plate 58 of the core C normally adheres tothe 'adjacent wall of thebox V and is raised therewith tothe position wherein the "slack in the chains 1'5'4and 1'55'i's taken up and the chains 154 and tighten to thereby pull the top pla/te 58 fromits engagement with the adjacent wall of the box V Ito 'thereby permit the top plate 58 to fall downwardly into position on the llange 56 on the upper edges fof-'the Walls 5-1-54 of the core C, vthe guide rods A15,1 and 152, through their engagement in the guide sleeves, 155141 and 152g, guiding the :top plate 58 in `this 'downward movement to thereby insure proper positioning -of the top plate '58 relative to the walls 51.-'54 and to the base B, v

The outer shell and the box V `may then be raised completely o'l lfrom the core C and the box V removed from the outer shell by dis'a"ss'einbling the walls of the shell H; The lcore C may then be quickly and easily returned to its normal vault forming position by applying air pressure through the coupling member 139 and thus raising the cylinders 12'8fai1d 128e and 'raising the corner sections 108'and 110I backV i-hto normal operating position relative to the corner sections 109 and V111 wherein the upper edge portions of--the walls v51:-54 arev disposed in substantially the 'saine horizontal plane. The handle '9,2 may thenbe manually pulled from outside the base. B to` thereby Lpull the pawls Vinwardly out of'v engagement with the

braces

61 and 62 and permit the core C to drop back down into normal operating position on the rails 22-2'5 of the base B. Ihe outer shell H may then again be assembled. on the base B around the core C and the vform .'20v is again. operable .to receive vault forming material for the purpose vof forming another vault.

VFromthe -foregoing,it will be seen that we haveaffofrded a novel form which is quickly and easily removed from a receptacle suchl as the box of a burial'v'ault.

Also, it will be seen that we have provided a novel form embodying a core which is constructed and is operable in a novel and expeditious manner.

ln addition, it will be seen that we have afforded a novel form which is particularly effective and eiiicient in operation and may be economically produced commercially.

Thus, while we have illustrated and described the preferred embodiment of our invention, it is to be understood that this is capable of variation and modilication, and we therefore do not wish to be limited to the precise details set forth, but desire to avail ourselves of such changes and alterations as fall within the purview of the following claims.

We claim: v

1. A form for molding burial vaults, and the like, comprising a base, an outer shell mounted on said base, and a core mounted on said base inwardly of said outer shell in position to permit construction material to be disposed between said shell and said core, said core comprising a plurality of corner sections, each of said corner sections comprising portions of two adjoining substantially vertical side walls and being disposed in abutting relation to two of the other corner sections along lines disposed at an acute angle to the horizontal in said side walls, elongated track members mounted on certain of said corner sections in parallel relation to said lines, slide members mounted on the other of said corner sections and slidably mounted on said track members for reciprocation along the later, and means for reciprocating said track members and said slide members relative to each other in such relation as to move adjacent corner sections relative to each other in opposite directions along said lines.

2. A molding form comprising a base, a substantially rectangular-shaped core comprising four upstanding wall sections disposed in end to end relation to each other, said wall sections being separated from each other along lines disposed at an acute angle to the horizontal, said wall sections having a raised position and lowered position relative to said base, means for moving said wall sections from the lowered to the raised position, means on said base for supporting two of said wall sections in said raised position, actuating means, said actuating means comprising cylinder means connected to the other two of said wall sections, piston means reciprocably mounted in said cylinder means, said piston means being connected to said iirst mentioned wall sections, and means for moving said cylinder means downwardly relative to said piston means when said iirst mentioned two wall sections are supported by said supporting means in said raised position to thereby move said other two wall sections downwardly along said lines relative to said rst mentioned two wall sections to thereby shrink said core longitudinally and laterally, and means disposed outwardly of said core to form an outer shell therearound.

3. In a form for molding burial vaults, and the like, of the character including a base, and an outer shell mounted on said base, a core mounted on said base inwardly of said outer shell, said core comprising upstanding walls disposed to define the outer edges of a horizontal substantially rectangular-shaped area, a substantially fiat rectangular-shaped cover member normally mounted on said walls, said walls being divided along four separation lines into four corner sections, said lines extending from the top to the bottom of said walls at an acute angle to the horizontal, alternate ones of said lines being disposed at substantially the same acute angle to the horizontal, two of said sections being spaced from each other by the other two of said corner sections, said other two sections being spaced from each other by said rst mentioned two sections, each of said rst mentioned two sections being det-ined by a respective pair of said lines, the two lines in each of said pairs diverging from each other in the same geenral vertical direction as the two lines in the other of said pairs, four elongated tracks, each of said tracks being disposed adjacent to and in substantially parallel relation to a respective one of said lines, each of said tracks being attached to said corner section of said rst two mentioned corner sections a lateral edge of which said respective line defines, slide members mounted on said tracks and attached to adjacent ones of said other two corner sections, and means connected between said tracks and said respective slide members thereon for reciprocating said tracks and slide members relative to each other and thereby reciprocate said first mentioned two corner sections and said other two corner sections relative to each other.

4. The combination as dened in claim 3 and in which said means for reciprocating said tracks and slide member comprises a pair of tluid actuated piston and cylinder assemblies.

5. A form for making burial vaults, and the like, comprising a base, an outer shell mounted on said base in upstanding position thereon, a core mounted inwardly of said outer shell and comprising a plurality of upstanding corner sections, and a top wall extending over said corner sections, said core having a raised position and a lowered position relative to said base, means connected to said corner sections for moving two of said sections downwardly relative to the remainder of said sections when said core is disposed in said raised position, guide means mounted on said base, means mounted on said top wall and engaged with said guide means for guiding said top wall relative to said two corner sections, and means for pulling said top wall toward said two corner sections.

6. A molding form comprising a base, a substantially rectangular-shaped core comprising 'four upstanding wall sections disposed in end to end relation to each other, said wall sections being separated from each other along lines disposed at an acute angle to the horizontal, said wall sections having a raised position and a lowered position relative to said base, means for moving said wall sections from the lowered to the raised position, means on said base for supporting two of said wall sections in said raised position, actuating means connected between said two wall sections and the other wall sections for moving the latter downwardly relative to said two wall sections when said two wall sections are supported by the supporting means in the raised position to thereby move said other wall sections downwardly along said lines relative to said irst mentioned two wall sections to shrink said core longitudinally and laterally, and means disposed outwardly of said core to form an outer shell therearound.

7. The molding form as dened in claim 6 wherein said supporting means comprises a pair of posts pivotally connected to said base at their lower ends and movable toward and away from said two wall sections, means for simultaneously moving said posts toward and away from their respective wall sections, said two wall sections each having an inwardly projecting element thereon and each of said posts being provided with an ear for engaging under the respective projections on the two wall members to support the same in raised position.

References Cited n the le of this patent UNITED STATES PATENTS 1,024,646 Muckey Apr. 30, 1912 1,134,543 McArthur Apr. 6, 1915 1,164,106 Lerch Dec. 14, 1915 1,292,203 Wolfe Jan. 2l, 1919 1,538,471 Copeman May 19, 1925 2,442,516 Shriver June 1, 1948 2,593,465 Tourneau Apr. 22, 1952 2,733,495 Lucas Feb. 7, 1956