US3089216A

US3089216A - Forms for sectional precast feed bunkers

Info

Publication number: US3089216A
Application number: US36272A
Authority: US
Inventors: Anton A Switlick
Original assignee: VALLEY PRE CAST BUNKS Inc
Current assignee: VALLEY PRE CAST BUNKS Inc
Priority date: 1960-06-15
Filing date: 1960-06-15
Publication date: 1963-05-14
Anticipated expiration: 1980-05-14

Description

May 14, 1963 A; A. SWITLICK 3,089,216

FORMS FOR SECTIONAL PRECASTFEED BUNKERS Filed June 15, 1960 2 Sheets-Sheet 1 Fig.

Anton A. .Swfi/ic/r 1N VEN TOR.

- I wan am May 14, 1963 A. A. SWlTLl CK FORMS FOR SECTIONAL PRECAST FEED BUNKER-S Filed June 15, 1960 2 Sheets-Sheet 2 Fig. 3

&

Fig. 6 74 Anton A. Swirl/ck INVENTOR.

BY Qwaoiu fiice Patented May 14, 1963 3,089,216 FORMS FUR SECTIONAL PRECAST FEED BUNKERS Antcn A. Switlick, Omro, Wis, assignor to Valley Pre-Cast Bunks, Inc., a corporation of Wisconsin Filed June 15, 1960, Ser. No. 36,272 4 Claims. (Cl. 25-121) This invention relates to the construction of a sectional concrete mold or form for precasting sections of a feed bunker or the like.

It is therefore a primary object of this invention to provide a concrete mold which is formed from the assembly of concrete forming sections to thereby produce precast concrete sections.

Another object of this invention is to provide concrete form assemblies particularly designed to form sections of a feed bunker.

The feed bunkers made in accordance with this invention are assembled from concrete sections having an I-bearn type cross-section with the sections being assembled end-to-end to form a bunker of any desired length. The channels formed by the I-beam sections on one side constitute a feeding trough while the channel formed by the other side of the I-beam sections constitute the supporting leg portions for the feed bunker trough. In casting the bunker sections appropriate plugs or holes are formed therein for mounting of a guide rail along the feed bunker and for also mounting an auger feed mechanism for distributing the feed along the trough portion of the feed bunker. The novel concrete form assembly construction of this invention is therefore provided for forming the desired shape precast concrete sections of the feed bunker, said form assemblies being readily assembled and disassembled thereby enabling the casting of a large number of bunker sections therefrom with unexpected rapidity, accuracy and uniformity.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is a perspective view of the concrete form or mold made in accordance with this invention.

FIGURE 2 is a perspective view of the precast concrete section produced from the mold illustrated in FIG- URE 1.

FIGURE 3 is a sectional view taken through a plane indicated by section line 33 in FIGURE 1.

FIGURE 4 is a sectional view taken through a plane indicated by the section line 44 in FIGURE 3.

FIGURE 5 is a sectional view taken through a plane indicated by section line 5-5 in FIGURE 4.

FIGURE 6 is a sectional view taken through a plane indicated by section line 66 in FIGURE 4.

FIGURE 7 is a sectional view taken through a plane indicated by the section line 77 in FIGURE 6.

FIGURE 8 is a sectional view taken through a plane indicated by section line 8-8 in FIGURE 1.

FIGURE 9 is a perspective view of a guard rail post which may be mounted on the concrete section made in accordance with this invention.

FIGURE 10 is a perspective view of the mounting hole forming device which may be attached to the concrete mold or form made in accordance with this invention.

Referring to the drawing in detail, the concrete mold or form made in accordance with this invention is generally designated by the reference numeral 10 and illustrated in FIGURE 1. The precast concrete section formed from said mold 10 is illustrated in FIGURE 2 and is generally indicated by reference numeral 12. It will be observed that the precast concrete section 12 so formed resembles an I-beam in cross-section which when placed in a horizontal position includes an upper channel portion constituted by a web portion 14 and

parallel flange portions

16 and 18, said web portion 14 and

flange portions

16 and 18 constituting a section of a trough of the feed bunker formed by an assembly of sections 12 in end-to-end relation to each other. The lower channel portion of section 12 which is formed by web portion 14 and

lower flange portions

20 and 22 constitute the supporting leg portions of the feed bunker. It will also be observed that

apertures

24 and 26 are provided at the ends of each section 12 at the intersection of the web portion 14- and the side flanges, said

apertures

24 and 26 being provided for alignment pins through which a plurality of precast sections 12 may be assembled end-to-end to form the feed bunker.

It will also be observed that a plurality of apertures 28 are formed within each section 12 adjacent one end thereof on the upper edge of the

flange portions

16 and 18. The apertures 28 are provided for the purpose of mounting on the flange portions 16' and 18 a guard rail post 30 the detail of which is illustrated in FIGURE 9. The guard rail post 30 includes a flange portion 32 having apertures 34 therein which are aligned with the apertures 28 on the precast concrete section 12 for mounting of the post thereon. It will also be observed in FIGURE 2 that at one end of the web portion 14 there are provided a pair of apertures 36 whereby the supporting frame for an auger feed mechanism may be similarly mounted on the precast concrete section 12. It will also be observed that the trough portion of the bunker section 12 formed by the

flange portions

16 and 18 are somewhat shallower than the channel portions formed by the

flange portions

20 and 22.

Referring now to FIGURE 1, it will be observed that the mold assembly 10 from which the concrete precast section 12 is cast is formed by a pair of channel-

shaped sections

38 and 40 with the channel section 38 being slightly shallower than the channel section 40'. The channel sections are interconnected by

side panels

42 and 44. It will be observed that the two

channel sections

38 and 48 are similar in construction except for the slight difference in the depth of the channels formed thereby and hence the constructional details that are hereafter described with respect to channel section 38 will also apply to the channel section 44] unless otherwise specified.

The channel section 38 includes a web portion 46 which is integral with sides 48 and '50 as more clearly seen in FIGURE 3. Also integral with the

sides

48 and 50 are

flanges

52 and 54. It will therefore be apparent that the channel forming section 38 forms the upper trough or channel portion of the precast concrete section 12.

In FIGURE 1 it will be observed that a plurality of spaced reinforcing members 56 are attached to the channel section 38, said reinforcing members 56 having an inner peripheral portion which conforms to the channelshaped portion of the section 38. The reinforcing members 56 are therefore fastened as by welding tothe section 38 and therefore serves to maintain the channelshaped surface of section 38 rigid and capable of withstanding any shape distorting pressures from the concrete being cast. As an additional brace for the reinforcing members 56 a tubular bracing arrangement is provided for some of the reinforcing members as will be seen in FIGURE 1, said bracing arrangement including a rod or bar 58 which is bent at an obtuse angle and welded to the reinforcing member 56 with the ends thereof abutting against the inner section of the web 46 and the

sides

48 and 50 of the section 38. Also, a central rod or bar 68 is welded to the central portion of the reinforcing member 56 and to the vertex of the angle formed by the bar 58 to thereby form a truss-like arrangement for further bracing the channel section 33.

As will be more clearly seen in FIGURE 3, longitudinally disposed

edge stiffening members

62 and 64 of angle iron are welded along the outer edge portion of the

flanges

52 and 54 of the channel section 3 8, these

members

62 and 64 enabling the channel section 38 to be properly aligned as will hereafter become apparent. It will also be observed that the outer ends of the reinforcing members 56 are notched so as to fit over the leg of the angle members to which the

flanges

52 and 54 are attached while the outer edge of the reinforcing members abut against the other legs of the angle members 62 and 64- so as to maintain the projecting legs of the

angle members

62 and 64 properly spaced from each other and perpendicular to the

flanges

52 and 54.

The channel section 38 with the reinforcing members 56 attached thereto and the additional bracing arrangement 58-60 also attached thereto and the

assembly angle members

62 and 64 also welded thereto are maintained in spaced relation to a similar assembly including the other channel section 49, said assemblies being interconnected in spaced relation to each other by means of the

side panel assemblies

42 and 44. Both of the

side panel assemblies

42 and 44 are identical in construction. Side panel assembly 42 for example includes a panel member 66 which abuts against and is aligned with the projecting flanges of the assembly angle members attached to the flanges of the

channel sections

38 and 40 whereby the channel sections will be properly spaced apart relative to the side panel members. Also attached to the side panel members 66 are angle members 68 which are thereby disposed in back-to-back relationship with the

angle members

62 and 64 on the channel sections with the side panel members 66 disposed therebetween. The side panel assemblies are also reinforced by transverse rib members 70 arranged perpendicular to a centrally disposed longitudinal rib member 72 as is more clearly seen in FIGURE 1.

From the foregoing description, it will be observed that the

angle members

62 and 64 on the channel sections cooperating with the angle members 68 on the side panel members 66 provide means for properly aligning the channel sections to form an accurate and uniform concrete mold and also provide means for securing the sections to each other with the requisite holding force necessary to withstand the pressures on the mold sides. It will therefore be observed in FIGURE 4, that a plurality of assembling pins 74 are provided for interconnecting the projecting legs of the

flanges

62 and 68 or 64 and 68 while connecting bolts 76 are also disposed on the flanges to hold the sections together.

The

sections

38 and 40 when placed against the

side panel assemblies

42 and 44 may be accurately aligned thereagainst before securing the assembly together by means of the assembling or alignment pins 74 which are inserted into apertures formed in the projecting legs of

angle members

62 and 68 and in the side panel member 66 disposed therebetween as Will be apparent in FIGURE 5. The aligning pin 74 is of tapered configuration so that it may be readily inserted through the apertures prior to perfect alignment thereof and by forcing the pin 74 inwardly, its tapered sides will wedge the misaligned apertures into perfect alignment as will be apparent from FIGURE 5.

After the mold assembly has been perfectly aligned in the manner hereinabove indicated, the assembly is then connected in its aligned condition by means of the bolt 76 as will be more clearly seen in FIGURES 6 and 7. Slots 78, 8t) and 82 are provided in the

angle member

62 or 64, side panel member 66 and angle member 68 respectively so that the connecting bolt 76 may extend therethrough when said slots are aligned after proper align- 4 ment of the angle member and side panel member. The bolts 76 have a threaded nut 84 and lock washer 86 provided thereon so that the assemblies may thereby be bolted together in aligned assembled position with the requisite holding force.

Referring once again to the precast concrete section 12 illustrated in FIGURE 2, it will be recalled that

apertures

28 and 36 are provided therein for the purpose of mounting on the section guide rail post 30 and possibly an auger feed mechanism frame respectively. Apparatus is therefore provided which may be attached to the channel section 38 for the purpose of forming the

mounting apertures

28 and 36 in the cast section 12. For example, the apertures 36 are formed by means of a nut member 38 which is embedded in the concrete section 12 and spaced from the surface thereof by means of a spacer sleeve as will be more clearly seen in FIGURE 8. The nut member 88 and spacer sleeve 90 are held in assembled position on the channel section 38 by means of a shaft member 92 which has a threaded portion $4 at its inner end which is threadedly engaged with the nut member 85, said shaft member 92 having a slotted portion 96 at its other end which is assembled with a lock member 98 slidably inserted through a pair of supporting flanges 109 which are secured to the web portion 46 of the channel section 38 by welding. The supporting flanges 160 are disposed on either side of an aperture 102 formed in the web portion 46 of the channel section 38 through which the shaft member 92 extends. The position of the supporting flanges and the lock member 598 on the channel section 38 is more clearly shown in FIGURE 1.

Similar means is provided for the formation of the'aperture 28 on the upper edge portions of the

channel flanges

16 and 18. Accordingly, apertures 104 are provided for example on the flange 54- of the channel section 38 as will be seen in FIGURE 1. As will be seen in FIG- URE 10 a mounting structure isprovided which is similar to the one shown in FIGURE 8 but includes a pair *of such mounting structures. The structure shown in FEGURE 10 is therefore attached to the

flanges

54 and 52 of the channel section 38 with the shaft members 166 thereof being inserted through the apertures 104, said shaft members 106 being provided with spacing sleeves 90 and threaded not members 88 identical with those provided for the shaft member 92 illustrated in FIGURE 8. The shaft members 106 are also similarly assembled on the channel section 38 by means of lock members 103 and 110 which are secured to tWo sets of supporting

flanges

112 and 114 spaced apart and connected to 'a mounting member 116 which is welded to the flanges 54 of the channel section'38 if so desired.

From the foregoing description, assembly and disassembly of the concrete mold 10 made in accordance with this invention will be apparent. It will therefore be recognized that this invention features a sectional mold which may be readily assembled and disassembled and usable for an unlimited number of times to form precast concrete sections of uniform dimensions the latter attribute of the invention being made possible by rapid and accurate alignment of the mold sections by means of the tapered aligning pin 74 cooperating with the angle members on the channel sections and on the side panels with additional and subsequently added connecting means for holding the mold sections in assembled position with the requisite force. Furthermore, the uniformity and accuracy is also realized because of the provision of the novel reinforcing members which not only prevent distortion of the channel sections but maintain the assembly angle members rigidly in spaced relation and preventing distortion thereof which would otherwise reduce the accuracy of their aligning function.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A sectional precast concrete form assembly comprising a pair of opposed channel-shaped panels, each having a web, two substantially perpendicularly extending sides, and flanges extending approximately perpendicularly outward from the outer end of each side and parallel to the web, the channel side of said panels constituting the rear surface of the panels and the opposite side of said panels constituting the shape forming surfaces of the panels, said panels being positioned with the shape forming surfaces facing each other so as to form a substantially I-shaped mold, longitudinally disposed angle iron edge stiffening members each having one leg welded along said outwardly extending flanges and the second leg projecting outwardly perpendicular to the rear surface, said second leg being provided with spaced aligning apertures and spaced slots; a pair of side panels, each having a shape forming surface and a rear surface, said side panels including angle members attached to the rear surface at the edges thereof so as to provide at each edge, one leg juxtaposed to said side panel and another leg perpendicular thereof, said juxtaposed leg and the subjacent side of said side panel having aligned aligning apertures and slots spaced so as to correspond to the apertures and slots in said stiffening members, means connecting said side panels to said first mentioned pair of opposed panels and spacing said opposed panels in predetermined spaced relation to each other, said means comprising tapered alignment pins received within the apertures for fine positioning of the panels relative to each other, and bolt means extending through said slots for locking the panels together after alignment, said side panels being reinforced by longitudinal and transverse rib members, said tr-ansverse rib members extending between and abutting the perpendicular legs of the angle members secured to the side panels, and reinforcing ribs integrally connected to and conforming to the web, sides and outwardly extending flanges of the rear surface of the first mentioned pair of channel-shaped panels, the end-s of said reinforcing ribs extending into abutting relationship with the stiffening angles secured to the outwardly extending flanges of said first mentioned panels.

2. A sectional precast concrete form assembly comprising a pair of opposed channel-shaped panels, each having a web, two substantially perpendicularly extending sides, and flanges extending approximately perpendicularly outward from the outer end of each side and parallel to the web, the channel side of said panels constituting the rear surface of the panels and the opposite side of said panels constituting the shape forming surfaces of the panels, said panels being positioned with the shape forming surfaces facing each other so as to form a substantially I-shaped mold, longitudinally disposed angle iron edge stiffening members each having one leg welded along said outwardly extending flanges and the second leg projecting outwardly perpendicular to the rear surface, said second leg being provided with spaced aligning apertures and spaced slots; a pair of side panels, each having -a shape forming surface and a rear surface, said side panels including angle members attached to the rear surface at the edges thereof so as to provide at each edge, one leg juxtaposed to said side panel and another leg perpendicular thereof, said juxtaposed leg and the subjacent side of said side panel having aligned aligning apertures and slots spaced so as to correspond to the apertures and slots in said stiffening members, means connecting said side panels to said first men tioned pair of opposed panels and spacing said opposed panels in predetermined spaced relation to each other, said side panel being reinforced by rib members extending between and abutting the perpendicular legs of the angle members secured to the side panels, and reinforcing ribs integrally connected to and conforming to the web, sides and outwardly extending flanges of the rear surface of the first mentioned pair of channel-shaped panels, the ends of said reinforcing ribs extending into abutting relationship with the stiffening angles secured to the outwardly extending flanges of said first mentioned panels.

3. The assembly as defined in claim 1 wherein one of said channel-shaped panels is slightly shallower than the other.

4. The assembly as defined in claim 1 including bracing members comprising bars bent at an obtuse angle and welded to the reinforcing ribs and abutting against the rear surface of the channel-shaped panels where the web and sides meet, and second bars, each welded to the central portion of a reinforcing rib and the vertex of the angle of a corresponding bent bar.

References Cited in the file of this patent UNITED STATES PATENTS 1,117,519 Robertson Nov. 17, 1914 1,602,035 McLaughlin Oct. 5, 1926 1,970,547 Anderson Aug. 21, 1934 2,055,977 Hayes Sept. 29, 1936 2,307,678 Hayes Jan. 5, 1943 2,366,401 Haskell Jan. 2, 1945 2,378,814 Wascher June 19, 1945 2,610,381 Rosati Sept. 16, 1952 2,762,105 Avril Sept. 11, 1956 2,816,345 Symons Dec. 17, 1957 2,818,629 Wedberg Jan. 7, 1958 2,823,442 Miller Feb. 18, 1958 FOREIGN PATENTS 802,058 Germany Feb. 1, 1951

Claims

2. A SECTIONAL PRECAST CONCRETE FORM ASSEMBLY COMPRISING A PAIR OF OPPOSED CHANNEL-SHAPED PANELS, EACH HAVING A WEB, TWO SUBSTANTIALLY PERPENDICULARLY EXTENDING SIDES, AND FLANGES EXTENDING APPRIXIMATELY PERPENDICULARLY OUTWARD FROM THE OUTER END OF EACH SIDE AND PARALLEL TO THE WEB, THE CHANNEL SIDE OF SAID PANELS CONSTITUTING THE REAR SURFACE OF THE PANELS AND THE OPPOSITE SIDE OF SAID PANELS CONSTITUTING THE SHAPE FORMING SURFACES OF THE PANELS, SAID PANELS BEING POSITIONED WITH THE SHAPE FROMING SURFACES FACING EACH OTHER SO AS TO FORM A SUBSTANTIALLY I-SHAPED MOLD, LONGITUDINALLY DISPOSED ANGLE IRON EDGE STIFFENING MEMBERS EACH HAVING ONE LEG WELDED ALONG SAID OUTWARDLY EXTENDING FLANGES AND THE SECOND LEG PROJECTING OUTWARDLY PERPENDICULAR TO THE REAR SURFACE, SAID SECOND LEG BEING PROVIDED WITH SPACED ALIGNING APERTURES AND SPACED SLOTS; A PAIR OF SIDE PANELS, EACH HAVING A SHAPE FORMING SURFACE AND A REAR SURFACE, SAID SIDE PANELS INCLUDING ANGLE MEMBERS ATTACHED TO THE REAR SURFACE AT THE EDGES THEREOF SO AS TO PROVIDE AT EACH