US1627116A - Mold for concrete buildings - Google Patents

Description

May a, 1927.

J. C. POETZ MOLD FOR CONCRETE BUILDINGS Filed Dec. 21, 1925 3 Sheets-Sheet 1 I 9mm John 6. Raetz May 3,1927. ,116

J. c. POETZ MOLD FOR CONCRETE BUILDINGS Filed Dec. 21, 1925 3 Sheets-Sheet 2 9 3 liq- Z/ H -'z=---fi i a m a c: fi

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MOLD FOR oolvcan'rn BUILDINGS.

Application filed December 21, 1925. Serial No. 76,583.

or dead air cells are formed'in these elements or features of the building structure, to insure strength and a minimum amount of weight, and insulate the walls, floors, etc. against transmission of heat and sound. By the utilization of my system of building constructionas hereinafter set forth a fireproof building structure is provided which is durable and economical in the expenditure of time, labor and material required.

r In carrying out my invention I utilize removable hollow cores in the'formation of the cellular floor slabs, walls, etc. and removable sustaining forms, and fill in the spaces between the adjoining coresand between the cores and forms with plastic concrete material of proper or suitable consistency. Means are provided for varying the spacing betweenthe cells by adjusting the cores relatively one to another and to the forms whereb the thickness of the interior walls of 't ie'cellular structures are varied; means are employed for accurately marking the. concrete base pre- 'paratory'to settingthe cells or cores, and means are utilized for uniformly spacing thecores with precision and convenience The'retaining forms and the .cores are made in standard uniform sizes and shapes,

the cores being interchangeable and the forms being made in interchangeable sections which are designed to interlock at their adjoining edges, and means are provided for anchoring and retaining the su 'staining forms in, proper valinementduring the process of casting the concrete structures and while the-plastic material is setting.

. The invention consists in certain novel combinations and arrangements of parts and steps in the system of building construction as will hereinafter be more fullyset forth and claimed. j v p I In the accompanying drawings I have illustrated one complete example of the hysical embodiment of my invention wherein the parts are combined and arranged in accordance with the best mode I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a' vertical sectional view, broken on horizontal lines, of 'a concrete building. structure having cellular floors, walls, etc. and a dormer roof, and showing the forms and cores in lace for casting the different elements in t 'e building structure.

with the forms and cores'in place.

F 1gure 3 1s a. detail vertical sectional View of a fragment of a wall illustrating two Figure 2 is a broken plan view showing f" a Wall structure partly in horizontal section completed cells and illustrating two cores and the side forms in place. F1gure 4 is a. perspective detail view showmg the use of an anchoring strap with the forms, which strap remains as a permanent fixture in the completed wall structure.

Figure 5 is a vertical sectional detail View showmg a portion of-a window frame and cellular wall.

Figure 6 is a perspective View of a portion of the mold. r

B n I o o 1gure 7 1s a perspective view of a template employed for spotting or marking the concrete base as av guide for positioning the cores, as in Figure Figure 8 is a perspective view of one of the bridge plates or caps for a cell.

In order that the general arrangement of parts may readily be understood together with the system of building construction, 1 have illustrated in Figure 1 a portion of the foundation or concrete base '1 upon which the wall 2 is erected, and its exterior face isshown as finished with brick or stone as indicated at The main or first floor of the building is designated as 4 and the topmost floor orceiling 5 has built above it v a dormer roof comprising the sloping -portion 6 and vertical wall structures 6, the latter if desired being of less thickness than the lower vertical walls of the building.

The building" structure may have the usual floorsor stories between the foundation and roof in numbers'as required, and the usual partitions, as indicated at 7 will be arranged according to prearranged plans,'-and specifications.

The floors, walls, partitions, roof and otherelements of the building structure are fashioned with dead air cells 8 spaced apart at predetermined intervals according to plans and depending upon the .size and .weight of the structure and thickness of walls between the cells.

In. the erection of the concrete building the base 1 is formed to an exact level and i in the construction of the walls 2 metals forms are used for sustaining the plastic material. These forms are assembled and erected at the lines of the outer and inner faces of the Wall, and removablecores are spaced in rows and other formations "for the 7 creation of the cellular structure of both the the oppositeends of the plates are provided with complementary, interlocking tongues 10 and grooves 11. The tongueand groove members of adjoining sections are interlocked as indicated in Figure 6 which also shows the plates with complementary upper tongues 12and lower grooves 13 for joining adjacent plates at their upper andlower edges. The plates are of course erected as vertical. walls at the lines of the inner and outer. faces of the concrete structure, and the molds thus formed at opposite sides of the walls'are held rigidly in position by means of exterior, vertically arranged stays,

. each one of which comprises spaced fiat bars arranged in pairs and designated 14 and 15. At their ends the pairs of bars are joined by spacing blocks 16 which are secured between the bars of the stays by screws or bolts 17 to form a slotted stay.

The interchangeable plates are fashioned in uniform sizes and shapes andare providedwith bolt holes 18 in their exterior faces for the reception of retaining bolts or screws 19 which are passed through the slotted stays and threaded into the bolt holes, or sockets of the several sectlons or plates. A suitable number of the vertically arranged stays is employed to sustain the rows of form plates in'rigid position while the concrete structure is being cast and until j transversely of the plastic material has.. set. Then the screws 19 may be loosened in order that the slotted stays may be-elevated. as required :and the screws of the lowermost row of plates are withdrawn. The lower row of plates is then removed and replaced at the" top of the form, the screws are replaced in the upper row of the form, and all of the screws in the slotted stays are then tightened and the preparation made for, casting an additional portion of the concrete wall.

Anchoring straps 20 which are disposed the concrete wall are fashioned at one end with retaining lugs 21 -and' these lugs are embedded in the concrete wall; to permanently hold'the anchoring straps in the wall structure. Perforated hooks 22 are formed at the outer ends of the anchoring straps and are adapted to en gage over the upper edge of a form .plate 9 1 which latter is notched at 23 to accommodate the hook. A suitable number of these form. and they are located at desired intervals,'in horizontal rows, in order that they may subsequently be used by engaging their projecting hooks with the facing material of the wall. These hooks may be, used as anchoring "straps is employed to hold the 7 permanent retainers for attached stucco,

brick, or other facing fol-the walls, or used as ties for plastering, lathing etc. at the interior sides of the walls.

- Afterthe outer form plates have been arranged and set up for casting the first slab of the concrete Wall, the concrete base or j foundation is spotted or marked by the use of .a template as shown in Figure 7. This device is-composed of a central bar. 24 having a suitable number of cross armsarranged in pairs and projecting laterally from the centralbar, asindicated at 25 and 25. The bars 25 arefashioned at their ends with down-turned perforated lugsor flanges 26 which are perforated for the gage bolts 27 that are of course adjustable, and are adapted to be placed against the inner face of the formwhen marking the concrete base. The lugs 26 form markers or spotters for forming depressions in the face of the base,

and in addition to these markers the tern plate is provided with detachable markers or spotters in the form oflugs 28 each having a reduced head 29 adapted to be. seated .in a socket 30 of the cross bars and the central bar of thetemplate. .In Figure 7 it,

will beseen that the markers are arran ed in pairs with respect to the lugs 28, and in sets of four including a fiange marken26, for spacing a core from the form walland indicating the position in which the core is to be set. By adjusting the bolts 27 and placing their heads in contact with an inner face of the sustaining wallor form, the template is set in proper position. Then pressure may be applied to the template to cause the markers or spotters to make depressions or indentat ons 1n the concrete base as indicated at 28 in Figure 2 for use as guides in placing the cores in osition- The cores are fashioned with 10llOW metallic bodies as 31, open at top andbottom and of any suitable shape in cross section. As here illustrated the cores are rectangular in'cross secton withbulgingor convex side walls and rounded corners to permit" ready removal from tho cell after it has been formed. The bottom plate 32 and the-top plate 33 of each core are clampedtogether by means of a tie bolt 84: and" nut 35; The .top plate-is provided with a 'laterallyextending gage lug which is placedagainst the face of a form wall, while the bottom plate 32 is fashioned with downturned flanges or lugs 87 whichare complementary to and fit into the depressions or indentations 28 of the concrete base for properly positioning the core. The cell 1s formed with an open top, andthe top is closed byv means of a bridge plate or cap 37 which is embedded as a permanent element in the concrete.

In some instances filler plates or sections 38 are used in the formation oi the susta1n-' in form, as indicated in Figure 2, and these filer plates which have complementary tongues and grooves on their edges similar to the tongues and grooves on the edges of the sections or plates 8 of the mold are interposed as required in adapting the length of the forms to the plans for the building structure.

At the interior and exterior corners, angle stays 39 and 39 are also used for the pur pose of bracing the plates of the sustaining forms, and an end frame 40 as shown in Figure 2 is used transversely of the concrete wall for retaining and sustaining the plastic material when required. v y

In constructing the floor, as 5, or the floor 4, wood posts 41 and cross strlngers 42 with form-hoards 43 are-employed and the cores 31 are'spaced as indicated in Figure 1 with end boards 44 and clamps 45 and other necessary implements as generally employed in concrete constructions. The bottom slab of the floor is first cast, then the cores are placed in position as indicated by the markers from the template and the spaces around the cores are filled. Thebridge caps 37 which may be of heavy paper or other suitable material'are then placed over the open tops of the cells (after the removable cores have been withdrawn) and the top slab of the floor is then poured or cast and finished if necessary.

lVhen the wall reaches the level to permit setting of the window frame as 46 in Figure 5 (or of a door frame not shown) the frames are set in position as usual and the work of constructing the wall progresses around the frame and over its top and the frame is enclosed within the wall structure.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. A sustaining wall for molding plastic material comprising form plates having J OHN G. POETZ.

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