US3845930A

US3845930A - Telescopic supports for adjustable roof and beam form

Info

Publication number: US3845930A
Application number: US00304549A
Authority: US
Inventors: C Metrailer
Original assignee: Individual
Current assignee: Individual
Priority date: 1971-11-30
Filing date: 1972-11-07
Publication date: 1974-11-05
Anticipated expiration: 1991-11-05

Abstract

Apparatus for modular concrete constructions. The apparatus comprises a carriage and a concrete form. It also comprises the combination of a concrete form detachably mounted on a portable carriage the former of which can be set in place and positioned for pouring. The carriage can then be detached from the concrete form, removed for further service and later reunited with the form for transport to a new pour position, as desired. The concrete form per se is comprised generally of a support structure atop which is provided a pour form. The pour form is constituted of a central span and, preferably, a pair of upwardly faced troughs located on opposite sides of the central span. The central span of the pour form can range from flat to highly contoured. The troughs are each provided with a plurality of bottom openings, these being formed between removable panels. In forming a module, wet concrete can be poured upon the central span of the pour form to form a roof, ceiling, or floor while a tubular member or column form can be fitted into the openings of the trough at the column locations and wet concrete can be poured therein and into the troughs to cast columns and beams for support of the roof, ceiling or floor. After the concrete has set the pour form can be lowered, the troughs freed by removal of the panels at the columns, and the beam forms moved inwardly. The carriage can then be removed to an adjacent location for further pouring.

Description

Sttes Patent [191 Metrailer TELESCOPIC SUPPORTS FOR ADJUSTABLE ROOF AND BEAM FORM [76] Inventor: Charles E. Metrailer, 3613 Government St., Baton Rouge, La. 70806 22 Filed: Nov. 7, 1972 211 App]. No.: 304,549

Related US. Application Data [62] Division of Ser. No. 203,273, Nov. 30, l97l, Pat. No.

Primary ExaminerRobert D. Baldwin Assistant Examiner-John McQuade Attorney, Agent, or FirmLlewellyn A. Proctor 1451 Nov. 5, 1974 [57 ABSTRACT Apparatus for modular concrete constructions. The apparatus comprises a carriage and a concrete form. It also comprises the combinatiori of a concrete form detachably mounted on a portable carriage the former of which can be set in place and positioned for pouring. The carriage can then be detached from the concrete form, removed for further service and later reunited with the form for transport to a new pour position, as desired. The concrete form per se is comprised generally of a support structure atop which is provided a pour form. The pour form is constituted of a central span and, preferably, a pair of upwardly faced troughs located on opposite sides of the central span. The central span of the pour form can range from flat to highly contoured. The troughs are each provided with a plurality of bottom openings, these being formed be,- tween removable panels. In forming a module, wet concrete can be poured upon the central span of the pour form to form a roof, ceiling, or floor while a tubular member or column form can be fitted into the openings of the trough at the column locations and wet concrete can be poured therein and into the troughs to cast columns and beams for support of the roof, ceiling or floor. After the concrete has set the pour form can be lowered, the troughs freed by removal of the panels at the columns, and the beam forms moved inwardly. The carriage can then be removed to an adjacent location for further pouring.

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TELESCOPIC SUPPORTS FOR ADJUSTABLE ROOF AND BEAM FORM This is a division of application Ser. No. 203,273 filed Nov. 30, 1971 now U.S. Pat. No. 3,744,945.

Portable carriages, the upper portion of which is provided with collapsible wall structures, or forms, for use in building or repairing arches, tunnels, and the like are known to the art. In a typical structure of such type, a railway flat car, or similar transportable carriage, is provided with a permanently attached elevatable form, usually of oval contour, for providing temporary support for stone, brick, concrete block, masonry or plastic like masses such as concrete. In a typical construction, a flat foundation slab is laid and rails are constructed thereon. The carriage is placed on the rails, the material to be used in the repair or construction is placed on the form, andthe latter is used to elevate and place the materials in the proper position for the repair or construction. Where, e.g., a tunnel is being constructed of concrete, the wet concrete is thrust upward and held in place against the top of the tunnel until the concrete has set. The form is then collapsed, perhaps such character been sufficiently improved that they have become acceptable in non-tunnel construction.

In U.S. Pat. No. 3,320,646 to A. H. Wilkins, for example, a portable carriage, equipped with an elevated pour section, with pivotally connected end portions, is employed for casting monolithic concrete roof structures. The roof section or roof modules that are formed are set on prefabricated pillars, and the carriage is moved from one pair of prefabricated pillars to another as a roof section is formed. This and other such prior art devices have their limitations.

Among the objects of this invention are:

To provide new and improved apparatus for modular constructions.

To provide a transportable concrete form with de-.

and later reunited with the concrete form for transport thereof. such combination being particularly useful for simultaneously pouring the above construction forms, including specifically floors. roofs, beams and columns whereupon the form can be released from the set concrete and transported by the carriage across a foundation or floor for different continous modular pours. and then moved, if desired, to the next upper level for further pouring.

- ticularly the combination of a concrete form and detachable carriage, as generally described. In operation, the concrete form is transported to and set in place by the carriage which is particularly adapted by two different sets of wheels, one set mounted at right angles to the other, to provide mobility for the setting and alignment of the concrete form. The concrete form is comprised ofa concrete pour form, or forms. mounted on structural elements, including vertical posts supported on the carriage frame, by virtue of which the concrete pour form, or forms, can be supported and elevated or lowered with respect to the carriage, this providing flexibility such that the pour form, or forms, can be readily positioned for pouring. ln position, the concrete form, in a preferred embodiment, is additionally supported by vertical shoring members. The carriage can be separated from the concrete form after the latter is positioned, removed for further service, and later reattached with the concrete form to transport the latter to a new pour position or location.

The invention, and its principle of operation, will be more fully understood by reference to the following detailed description of a specific embodiment, and to the attached drawings to which reference is made in the description. In the description, similar numbers are used to represent similar parts or components.

IN THE DRAWINGS:

F lG. l is a side elevation of a preferred type of portable carriage and concrete form or concrete form assembly, the preferred combination being shown in position for pouring concrete.

F IG. 2 is a plan view showing the carriage, or carriage assembly, which can be used for transport and positioning of a workpiece, particularly the concrete form, or concrete form assembly.

FIG. 3 is a fragmentary isometric view showing the vertical posts, shoring members and other telescoping components which constitute the upper portion of the concrete form support structure.

H0. 4 is a isometric view showing the concrete pan form sections and beam forms of the concrete form assembly, or pour forms, installed over the supporting members ready for pouring concrete.

FlG. 5 is a plan view showing a contiguous pair of concrete pan form sections ready for pouring a monolithic selfsupporting concrete structure including four columns two beams and central span.

FIG. 6 is an enlarged fragmentary isometric view showing the telescoping mechanism for retracting the main beam forms which carry concrete pour forms of the type used for forming beams and columns.

FIG. 7 is an enlarged fragmentary isometric view showing the removable section of the concrete pour form at columns used for pouring beams; FlG. 7A is a plan view of the said removable section at columns; and F IG. 7B is a cross-sectional view of said removable section at columns.

FIG. 8 is an enlarged fragmentary isometric view showing the carriage break away unit which allows the carriage to be removed from the concrete form support section.

FIG. 9 is an enlarged side view showing details of the eccentric axle by virtue of which the various wheels are attached to the frame member, and FIG. 9A is a front view of the same eccentric axle.

FIG. 10 is an end elevation view of the carriage and form support frame with a preferred type of arch form.

FIG. 11 is an end elevation view showing the carriage supporting the arch form with beam forms replaced with curved section as used to pour tunnels, drainage structures, or quonset type building structures.

FIG. 12 is a fragmentary elevation view showing one of the removable vertical support members or shoring members for the beam forms.

FIG. 13 is a fragmentary elevation view showing one of the vertical support members used in supporting the pan form frames.

FIG. 14 is a diagramatic representation of a series of views showing a step by step sequence of lowering the carriage and form assembly for removal after concrete has cured sufficiently.

With reference to FIG. 1 of the drawings, reference character 1 designates a concrete slab on grade or the floor slab of lower floors in a multi-story building made in accordance with the present invention. The horizontally oriented slab 2 is constructed as a unitary member having a plurality of horizontally disposed ribbed lower sections, and it is abutted by vertically disposed reinforced beam members 3 disposed in parallel planes. The beam members 3 are supported by vertically oriented columns 0, also made in accordance with the present invention. The reinforcing members 3, as well as the horizontal slab 2 and columns 0, include internally disposed steel reinforcing (not shown) as is wellknown in the building art, which reinforces these portions of the floor normally in tension. The design of the particular floors will, of course, be varied with the requirements of the building, in accordance with established engineering procedures, and need not be further elaborated upon in this disclosure.

The apparatus of this invention is comprised generally of a carriage l and a transportable concrete form 100. The portable carriage and transportable concrete form 100, which is detachably mounted on the carriage 10, are preferably used in combination. The body of the portable carriage per se (FIG. 2) is constituted generally of a reinforced frame body fitted with wheels, and means whereby the said carriage can be attached to a vehicle and towed to a work site. The concrete form 100, which is adapted for transport upon the carriage I0, is constituted generally of a frame structure on the top of which is supported a pour form, in-

eluding a central portion or span and upwardly faced troughs or trough-like members, with a plurality of bottom openings, located alongside the central span for receipt of poured concrete. The pour form of the transportable concrete form 100 is constituted generally of a central span 4 and upwardly faced troughs or troughlike members 5 for receipt of poured concrete. The frame structure per se comprises a plurality of telescoping tubular shaped vertical posts 8 secured together by supporting horizontal posts which connect to top and bottom portions of adjacent vertical posts 8. Diagonal reinforcing members are also connected to the bottom and top portions of vertical posts 8, these being employed to further support and strengthen the frame structure. Shoring members 9, constituted of telescoping tubular members similar in purpose and function to vertical posts 8 are also provided to support the troughs 5. Jacks I3 are provided within the lower terminal ends of each of the several vertical posts 8 as well as within the lower terminal ends shoring members 9 which are used to support the troughs 5.

Referring specifically to FIGS. 3 and 4, it will be observed that the pour form, which includes central span 4 and upwardly faced troughs 5, rests upon and are supported by

horizontal beams

6, 7. Beams 7 are parallelly alligned, one with respect to another, and are directly perpendicularly affixed to the top terminal ends of the innermost tubular members of vertical posts 8. Beams 6, on the other hand, are also parallelly alligned one member with respect to the other, but lie at right angles to beams 7, and are affixed to the upper sides thereof. The

beams

6, 7 also contain smaller

telescoping tubular members

23, 21, respectively. The terminal ends of the latter tubular members 21 are Ushaped to support troughs 5, and both

tubular members

23, 21 are supported by shoring members 9 affixed to the ends thereof. The shoring members are particularly useful where, as observed by reference to FIG. 4, the troughs 5 are projected outwardly and the central span 4, which comprises a concrete form element, are loaded with wet concrete.

The design and function of the vertical posts 8 and the shoring members 9 are quite similar and accordingly a complete description of one each of these elements will describe all of the several elements employed. Referring specifically to FIGS. 12 and 13, which describes these members in detail, it will be observed that each vertical post 8 and shoring member 9 includes a pair of telescoping tubular members 14, 19(the formr being of smaller size than the latter) and the length of each member 8 and member 9 is adjustable. Ajack is located at the lower terminal end of each member, a jack including a foot or platform member 11, having a nut 16 welded on the upper side thereof, which engages with externally threaded member 13. The platform member 11 is fastened to the threaded member 13 by means of pin 12. Members 15 are nuts attached permanently within tubular member 14. Member 13 provides tool-engaging means 16 for elongating and contracting the length of vertical posts 8 and shoring members 9 by rotation of the said member 13 which moves it upwardly or downwardly within the tubular member 14. The telescoping tubular members l4, 19 are also provided with means for lengthening and shortening the vertical posts 8 or shoring members 9. The pins 17 are thus removable passing through tubular members 19, 14 and shank members 18, 20. Members l4, 18 have a plurality of lateral openings within which the pins 17 can be fitted or removed thus permitting elongating and contracting vertical posts 8 and shoring members 9 in uniform increments. Member 20 is an attaching lug or shank which permits attachment of member 19 to beam form 5. Member 18 is also a lug or shank which is permanently attached to member 7.

The troughs 5 are designed in such manner that both beams and columns can be cast simultaneously, the required structural elements of which operation is best shown by specific references to FIGS. 7, 7A and 7B. A trough 5 is thus provided with oppositely desposed paired

removable panels

26, 27 each of which is provided with bottom semi-circular shaped notched lower edges and downwardly projected surrounding walls 30 which, when fitted together with fastner 29, form a circular opening with an enclosing downwardly projecting collar. The

panels

26, 27 overall are generally of U- shaped cross-section when fitted together and each of the upper edges are welded to tubular member 31 to form a contiguous tubular edge member through which a slightly smaller tubular member 24 can be passed to hold or secure the

panels

26, 27 in place. By such construction the upper portion of a tubular member or column pour form (not shown) can be secured within the opening formed between walls 30. The tubular member and the trough 5 itself can then be filled with wet concrete to form beams and columns. After the concrete has cured the.

panels

26, 27 at columns can be removed by withdrawal of bar 24 and fastner 29. The outer wall constituting the tubular column form member can then be removed from the concrete columns after which trough 5 can be lowered below the poured set of concrete beams and pushed inwardly to clear columns by telescoping tubular members 21 back within the members 7.

ln accordance with the best mode of practicing the present invention, in preference to manual manipulation, mechanical means are provided wherein both troughs 5 can be simutaneously projected or withdrawn, after

panel members

26, 27 have been removed or swung away from the poured set columns. A series of miter gear boxes 32, aligned for convenience upon a fixed tubular member 22, are communicated one with another via a shaft 33 and each can be operated by rotation of the shaft 33 to extend or retract the troughs 5. One such unit is described by reference to FIG. 6. A shaft 37, having threads of opposite cast, can thus be fitted within

tubular members

7, 21, aligned with the axis of the tubular members via passage through bushings 38, affixed within tubular members 7, and threadably engaged with nuts 39 affixed within tubular member 21. The shaft 37 is fitted with a sprocket and coupled via a chain 36 with a parallely aligned drive shaft 34 provided with a similar sprocket 35, the latter being driven through a miter gear box 32 affixed upon the tubular member 22. Rotation of the shaft 33, e.g., by rotation of thenut affixed thereon as by operative engagement therewith of a machine tool. will produce rotation of shaft 34 and, consequently rotation of shaft 37. Rotation of shaft 37 in one direction, on the one hand. will cause tubular members 21 to telescope inwardly and. conversely, rotation in the opposite direction will cause the tubular members 21 to telescope out wardly.

The carriage 10. best described by specific reference to FIG. 2, is preferably used in combination with the concrete form 100 detachably mounted thereon, but is also susceptable for use in other services for transporting or positioning other different types of equipment or workpieces which need not be described herein. The frame of the carriage is constructed of a channel frame 43 resembling a parallelogram. The structure of channel members 43 is reinforced by the inner channels 43a which are perpendicular to, intersect and connect with the side channels 43. Additional structural support is added by channel members 49 and 49a. Two independent sets of wheels are mounted on the carriage 10. A set. generally. of three wheels 42a. and a second set. generally, of three wheels 42b. are rotatably mounted upon eccentric axles 44 which are secured to frame 43. By utilizing two sets of three wheels independently mounted at right angles with one another, the carriage 10 has infinite mobility for the positioning and alignment of workpieces, particularly the concrete form 100.

The carriage 10 is engaged to the form support structure at points marked 8 and Sr as shown by reference to FIG. 2. The means of engagement or disengagement from the form support structure is best illustrated by reference to this figure and to F IG. 8, the structural elements of which are as follows: Member 45 is a tubular scgmcnt which is permanently attached at a corner of frame 43 of the carriage. With the members45 and 50 engaged and the carriage wheels 42 inflated, a foot 11 of each of the

vertical support members

8 and 8r rests on the floor or foundation. Vertical support members 8r are retracted with foot members 11 removed. Member 13 is retracted within member 14 and with pin 17 removed member 14 is retracted within member 19(See FIG. 13). The remaining vertical support mem bers 8 remain to support the weight of the form support structure. The carriage 10 is separated from the contubing members 47. Member 41 is a detachable towing arm utilized in transporting the carriage, or both the carriage support structure and concrete form, via high- 1 way from one jobsite to another with the carriage supported on the pair of rear wheels 42a (dual tires optional), while the other wheels are retracted.

A key and novel feature of the present invention relates to the method of raising and lowering the carriage 10, and'supported concrete form 100, by rapid inflation and deflation of the pneumatic tires in combination with the adjustable eccentrics on which the wheels are mounted upon the carriage. The means by which one set of wheels 42a supports the carriage while the other set of wheels 42b is non-supporting, and vice versa, is best shown by specific reference to FIGS. 9 and 9A. Each wheel is thus affixed to the carriage frame or channel 43 by use of an eccentric wheel mounting device such as described by reference to these figures. An eccentric member 44 is mounted upon the carriage frame 43 and a spindle 51, which carries a wheel, is permanently attached to eccentric member 44. Eccentric member 44, permanently attached to the bolt 52 which is pivotally mounted upon the channel 43 via passage of bolt 52 through the bearing element or sleeve 56 mounted within an opening through the channel, and the bolt 52 is held in place by the washer 53A and the nut 53. A collar 54, permanently affixed upon channel 43 on the side of channel 43 opposite the eccentric member 44, is slotted at desired increments to permit adjustment of the wheels at different levels of elevation. ln this instance increments are provided, thus permitting the spindle 51 to be elevated or lowered by latching the said spindle 51 in one or the other of four position levels by passage of the pin 55 through the openings formed between the slots of collar 54 and the washer 53A, and through an opening through the bolt 52.

The manner in which a set of wheels is lowered or raised relative to another to lower or elevate the carriage 10 is illustrated by reference to FIG. 14. Five different positions which illustrate the lowering (or raising) of the carriage 10 is described as follows:

Position 1: This figure illustrates the carriage resting on wheels 4211 as would be the position of the carriage at maximum height. The sets of eccentrics of

wheels

42b and 420 are inflated and are in the down position.

Position 2: The tires of wheels 42b are deflated until the carriage weight is supported on wheels 42a. As soon as wheels 42a are supporting the weight the eccentrics of wheels 4212 are loosened and 42b is reinflated and 42a partially deflated causing 42b to rotate 90 to the horizontal position, and the eccentrics on 42b are then locked in this position.

Position 3: The tires of wheels 42a are further deflated until the carriage weight is again supported on wheels 42b. The eccentrics of wheels 42a are loosened and 42a is reinflated and 42b partially deflated causing 42a to rotate 90 to the horizontal position and the eccentrics on 42a are locked at this position.

Position 4: The tires of wheels 42b are again further deflated until the carriage weight is supported by wheels 42a. The eccentrics for wheels 42b are loosened and 42b is reinflated and 42a partially deflated causing 42b to rotate 90 to the up position and the eccentrics on 42b are locked at this position.

Position 5: The tires of wheels 42a are again further deflated until the weight of the carriage is supported on wheels 42b. The eccentrics for wheels 42a are then loosened and 42a is reinflated and 42b deflated causing 42a to rotate 90 to the up position and the eccentrics on 42a are locked at this position. Further lowering can be done by deflating the tires of wheels 42b.

To elevate the carriage the above procedure is merely reversed. In order to accomplish the above procedures rapidly an air console 46 design will incorporate two levers with deflate, inflate, and off positions, so each set of 3 tires can be inflated or deflated simultaneously.

In an operation. the concrete form 100, mounted on the carriage 10, is brought to a job site for use usually after the columns, footings, or foundations and floor slab I has been completed. An initial concrete module comprising a roof, ceiling or floor supported upon columns and beams is begun after the concrete form 100 has been set in place, detached from the carriage, supported and positioned for pouring as described. The carriage I0 is disengaged from the concrete form 100 and can be used to transport and position other concrete forms for pouring.

When the concrete has sufficiently cured to be selfsupporting the carriage can be re-engaged with the concrete form structure 100 by reversing the removal procedure described above, as suggested. The concrete form structure is then lowered so the beam forms or troughs 5 will pass below the poured concrete beam as described and illustrated by reference to FIG. 14. The

. removable sections of the troughs 5 at columns (FIG.

7) are removed allowing the said troughs 5 to be retracted as described in conjunction with FIG. 6. The carriage is then moved to the next position and aligned with the previous construction by over-lapping the concrete pour forms over concrete previously poured. The beam forms or troughs 5 are then extended outwardly and the form supports are then raised to the proper height, the removable trough or beam form sections of columns are reinstalled and the carriage can be disengaged for use with other form sections.

Modified designs of the concrete form, in association with the carriage previously described or a somewhat modified version thereof. are shown by reference to FIGS. 10 and 11. The principle difference between these designs and those previously described relates to the use of a highly contoured or semi-circular arch upon which a roof or ceiling is to be poured, and the difference in structure by virtue of which the beam forms or troughs are disengaged or freed from the poured concrete beams and columns.

Referring specifically to FIG. 10, it will be seen that the carriage l0 and shoring

elements

8, 9 are as previously described, but herein are utilized with

posts

57, 58 to support the members 59 which are rolled in a semi-circular arch. The members 60 are permanently attached to members 59 and run in perpendicular planes thereto. The troughs or beam forms 61 readily fit upon previously shaped concrete beams 62, and hence continuous pouring of modular shapes by moving the concrete form is quite feasible. The trough or beam form 61 is hinged to the arch shaped member 59 via hinge 63 and can be readily swung free of the poured concrete beams and posts after the concrete 67 has set, as shown in phantom. The hinge 63 in the final position is braced with member 64 secured with pins 65. Member 61 is lowered by removing pins 65 and member 64. Member 61 is interrupted at equal intervals to provide a removable section at column lines similar to that previously described and illustrated by reference to FIG. 7.

Members

59 and 60 form a support for form 66 which may be sheet steel, plywood, formboard, etc. after hardening of the poured concrete 67, members 61 are lowered and carriage 10 is lowered by deflating tires 42, allowing the unit to be repositioned for next disposed section of structure. This configuration of the invention is suitable for producing concrete buildings with a plurality of arches running parallel to each other, these being supported by concrete columns 68 or steel columns, as desired.

A carriage and concrete form particularly useful for the construction of a concrete tunnel or drainage structure is described by reference to FIG. 11. The carriage in this instance is provided with only a single set of wheels 42 and, since high elevation of the arch member 59 is unnecessary shoring posts 8 are not needed, and there are no troughs or beam forms. Referring specifically to the figure it will be observed that the basic difference between the structures relates only to the hinged lower section of the arch form by virtue of which the arch can be freed from the poured concrete and moved from one location to another, or positioned for the pour. It will be observed that the pivotable section is adjoined to member 59 via a hinge, and it is braced with member 69 and secured in place with pins 65. Eye bolt 73 is embeded in slab to attach form 71 at its lower end. Bolt 72 with nuts 76 support the upper end of form 71. After hardening of the concrete, the assembly is lowered by removing pins 65, brace 69 and wedge 77, this permitting the member 70 to swing inwardly and lowering carriage 10 by deflating tires 42 for movement of the assembly to next disposed section. Forms 71 are removed and eyebolt 74 and bolt 72 remain in the concrete structure. Carriage It) utilizes the break-away feature shown in H0. 8.

It is thus understood that the invention is a highly useful means and method for constructing reinforced concrete buildings, tunnels, underground shelters or drainage structures utilizing a relatively small number forms in succession to construct individual sections of the structure, the forms being removable as the concrete supported thereby becomes sufficiently hard to support itself. Practically all of the available forms may be used simultaneously and continuously, with a minimum of idle time, whereby both material and labor savings are effected.

Having described the invention, what is claimed is:

1. A concrete form for detachably mounting upon a transporting carriage comprising a frame assembly wherein is included a plurality of vertically oriented telescoping posts,

and braces suitable for maintaining the vertical alignment of said posts,

jacks located on the lower extremities of said vertical posts, which terminate on a common plane, said jacks permitting minor adjustment of the height of the vertical posts,

means located on the lower extremity of said frame assembly for attachment to a means of transport,

a concrete pour form, provided with a central span which ranges in shape from fiat to highly contoured, mounted atop said telescoping posts,

locking means whereby the telescoping posts can be raised, lowered and locked to support the concrete form at a desired elevation,

beam forms, trough-like in shape and opening upwardly, mounted on the sides of said central span of said concrete pour form, carried by laterally oppositely disposed horizontally oriented telescoping tubular members mounted within the top portion of the frame assembly,

a plurality of gear boxes mounted on the upper part of said frame assembly operatively geared one to another and to a rotatable shaft,

gear means associated with said horizontally oriented telescoping tubular members which gear said members to said gear boxes and to said rotatable shaft such that rotation of said rotatable shaft in one direction will cause said telescoping tubular members to telescope outwardly and extend the beam forms, and rotation of said shaft in the other direction will cause said telescoping tubular members to telescope inwardly and retract the beam forms.

2. The apparatus of claim 1 wherein the gear means associated with said horizontally oriented telescoping tubular members comprise fixed nuts located within each of the outer members of the laterally oriented telescoping members and with shafts having threads of opposite cast located within each of the laterally oriented tubular members in association with the fixed nuts, and the rotatable shaft through the gear boxes are operatively connected together via appropriate linkage so that rotation of the shaft in one direction will cause the beam form to extend outwardly and rotation of the shaft in the other direction will cause the beam form to retract.

3. The apparatus of claim 1 wherein the locking means associated with the vertically oriented telescoping posts are comprised of a plurality of lateral openings within inner and outer telescoping posts through which pins can be passed upon alignment to lock the posts at the desired elevation.

4. The apparatus of claim 1 wherein the central span of the concrete pour form is constituted of a frame structure which carries parallel aligned horizontally oriented telescoping tubular posts, the terminal ends on each side of the pour form of which are U-shaped, faced upwardly and support trough-like members with a plurality of bottom openings formed by movable panels within which can be fitted tubular forms of various sizes and shapes, a plurality of the horizontal tubular telescoping posts inside each of which are axially mounted shafts having threads of opposite cast mounted within and in association with fixed nuts contained within adjacent pairs of telescoping posts, said horizontal tubular telescoping posts carrying gear boxes operatively associated, one with the other, by a common laterally disposed rotatable shaft, said common laterally disposed rotatable shaft being geared with each of said threaded shafts mounted within the horizontal telescoping members such that its rotation in one direction will cause the beam form to extend outwardly and rotation of the shaft in the other direction will cause the beam form to retract inwardly.

5. The apparatus of claim 4 wherein the bottom walls of the removable panels constituting the U-shaped pour form are provided with downwardly projecting wall segments which provide a collar for support of the tubular forms.

6. The apparatus of claim 1 wherein the beam forms are provided with bottom slotted removable panels which, when fitted together, leave bottom openings within which vertical concrete pour forms can be fitted such that wet concrete can be poured upon the central span of the concrete pour form to form a floor, ceiling or roof, into the beam forms to provide beams, and into vertical pour forms placed within the openings within the beam forms to provide supporting columns.

Claims

1. A concrete form for detachably mounting upon a transporting carriage comprising a frame assembly wherein is included a plurality of vertically oriented telescoping posts, and braces suitable for maintaining the vertical alignment of said posts, jacks located on the lower extremities of said vertical posts, which terminate on a common plane, said jacks permitting minor adjustment of the height of the vertical posts, means located on the lower extremity of said frame assembly for attachment to a means of transport, a concrete pour form, provided with a central span which ranges in shape from flat to highly contoured, mounted atop said telescoping posts, locking means whereby the telescoping posts can be raised, lowered and locked to support the concrete form at a desired elevation, beam forms, trough-like in shape and opening upwardly, mounted on the sides of said central span of said concrete pour form, carried by laterally oppositely disposed horizontally oriented telescoping tubular members mounted within the top portion of the frame assembly, a plurality of gear boxes mounted on the upper part of said frame assembly operatively geared one to another and to a rotatable shaft, gear means associated with said horizontally oriented telescoping tubular members which gear said members to said gear boxes and to said rotatable shaft such tHat rotation of said rotatable shaft in one direction will cause said telescoping tubular members to telescope outwardly and extend the beam forms, and rotation of said shaft in the other direction will cause said telescoping tubular members to telescope inwardly and retract the beam forms.