US2557631A - Collapsible form for forming window or door openings in concrete walls - Google Patents
Collapsible form for forming window or door openings in concrete walls Download PDFInfo
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- US2557631A US2557631A US32695A US3269548A US2557631A US 2557631 A US2557631 A US 2557631A US 32695 A US32695 A US 32695A US 3269548 A US3269548 A US 3269548A US 2557631 A US2557631 A US 2557631A
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- forms
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- concrete
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- wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/02—Forms or shutterings for making openings, cavities, slits, or channels for windows, doors, or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/012—Destructible mold and core
Definitions
- This invention relates to forms for making poured concrete homes or buildings and more particularly to the forms used about the window and door openings.
- collapsible window and door opening forms adapted for use with poured concrete wall forms which are of simple construction, easy to assemble and install in the building wall form, inexpensive to manufacture, easy to release, which can be moved as a unit and efficient in operation.
- FIG. 1 is an elevational view of the door or window forms extended and locked in a wall form and embodying the features of the present invention.
- Fig. 2 is an enlarged sectional view taken on line 2-2 of Fig. 1 and showing one means of bracing the wall forms on the opposite sides of the Window or door opening frame, this figure bearing the line
- Fig. 3 is a fragmentary and sectional view of a portion of the wall which is made with these forms and looking in elevation upon one side edge of the window opening thereof.
- Fig. 4 is a detail sectional view taken through the projections on which the locking lever is pivoted and on line 4-4 of Fig. 1.
- Fig. 5 is a fragmentary sectional view looking in plan upon the locking lever and upon its connection with the form, the view being taken on line 55 of Fig. 1.
- Fig. 6 is a fragmentary sectional view taken on line 6-6 of Fig. 1 and showing an internal lug of sleeve formation by which a bolt is retained for the connection of the opening form with the building wall form.
- Fig. 7 is a fragmentary sectional View showing an anchor member retained on the form for the purpose of being supported while the concrete is being poured around the same, the view being taken on line 1-! of Fig. 1.
- Fig. 8 is a perspective View of one type of an chor member.
- Fig. 9 is a fragmentary sectional view of the form showing a supporting bracket for insulating material which is placed centrally of the wall forms to have concrete poured on the opposite sides of the same and whereby the window or door opening form serves as a support for this insulating material.
- Fig. 10 is a perspective view of the insulating material supporting member connected to the form as shown in Fig. 9.
- Fig. 11 is a fragmentary side elevational view of two adjoining form pieces with the locking lever pulled and pieces collapsed.
- l5 and I6 are respectively portions of the building wall forms between which my window or door opening forms I! are disposed as a unit, Figs. 1 and 2, and are retained against lateral displacement by the extension of bolts I8 through one of the wall form plates into sleeve projections I9 weldingly secured as indicatedat 2
- a net 26 and washer 21 is placed on the bolt and tightened whereby to draw the form tightly upon the wall form plate.
- the wall form plates l and [6 are further retained flush against the edges of the window form I! by long bolts 28 passing through openings 3i and 32 in the respective plates, Fig. 2, and through I-beams lying flush upon the exteriors of the plates [5 and I6 as indicated respectively at 33 and 34.
- a nut 35 is extended on thebolt to draw the beams 33 and 34 and the plates I5 and I6 together and onto the edges of the window or door opening forms;
- Each of the form pieces have a shoulder formation 36 serving to provide a jamb 31 in the finished opening of wall 38, Fig. 3.
- the pieces are also flared at opposite sides as indicated at 39 and 4D to provide bevel edges 4
- Each of the form pieces have a corner as indicated at 43 and from which extend a short side 44' beveled as indicated at 45 to match with a bevel face 45 of a long side A? of an adjacent piece, Figs. 1 and 11.
- Extending from each corner 43 are spaced projections 48 and 49 between which is extended a U-shaped locking lever 53.
- This lever is pivotally connected to the projections by abolt 5
- the bolt 5! is held in place by a nut 52.
- the projections 28 and 39 are welded in place as indicated respectively at 53' and 54, Fig. 4.
- a long portion 47 of a piece has a projection 55 adjacent the beveled end 56 and which extends inwardly through the U-shaped locking lever and is pivotally connected thereto by a bolt 55.
- the lever has a handle portion 5'. which is grasped to pivot the lever and upon the lever being pushed outwardly from the position shown in Fig. 11 to the position shown in Fig. l, the beveled faces 45and45 of the pieces are brought together.
- the lever will be held in its adjusted position by a hook bolt 58 which extends through the-lever and has a thumbnut 59 thereon. This nut 59 will be tightened to secure the lever in place.
- a bracket 62 In order that hinge brackets will be embedded in the sides of the concrete opening when-the form is removed, a bracket 62, Fig. 8, is secured to form piece .22 as shown in Fig. 7 with a recess forming plate 53 into which the hinge part may fit when the forms have been removed.
- the piece 63 and the bracket or anchor member 62 is seshaped retaining bracket 86' for an insulatingmember 61 to be surrounded with concrete and embedded in the finished wall.
- the bracket 2-3 will be leftin the side of the openingandmay serve'for the attachment to the opening of-afixture.
- Thebracket is held on theform by a screw 68 entering-threaded-openingtfi'ofthebracket. This screw SBwill be removed at the time the form is removed.
- the hook bolt 58 is extended over aflushagainst the exteriors of the building wall form plates. It will be further apparent that the pieces making up the form can be collapsed inwardly' to' permit the removal of the form from the concrete opening and without the individual pieces being disasembled. These pieces are thus maintained in assembled relationship and delivered as a unit to the new site for another concrete building. It will be further apparent that the frame pieces serve as supports for anchors to 'which'fixtures can be attached, the anchors being embedded in the sides of the opening.
- a collapsible window or door opening concrete form adapted for use with concrete building wall forms comprising a plurality of separable corner-shaped pieces arranged in a cluster and adjustable relative to each other, each of said corner-shaped pieces having a long leg portion and short leg portion, these portions being cut on an opposite bias to'match with one another when assembled for use in the building wall forms, projection means extending inwardly from the short leg pol-non and projection means eX tending inwardly from the long leg portion substantially adjacentthe projection means on the short leg portion, locking levers respectively disposed in-the corners of the form and respectively pivotally connected at one end to the projection means on the short leg portions and pivotally connected to the projection means on the long leg portions of the adjacent corner pieces and having a working handle at the opposite end thereof, said lockinglevers' being operable upon the pieces either to forcibly expand the leg portions of the adjacent pieces intotheir aligned assembled positions or to forcibly collapsethe long leg portions to draw the pieces together whereby to permit the removal of the form from the completed concrete structure
- A' collapsible window or door opening concrete'form' adapted for use with concrete building wall for'ms' comprising a plurality of separable corner shap'ed pieces arranged in a cluster and 'adjustablerlative to each other, each of said respectively pivotally connected at one end to the projection means on the short leg portion and pivotally connected to the projection on the long leg portions of the adjacent corner pieces and lying astraddle thereof, said locking levers being operable upon the pieces either to forcibly expand the leg portions of the adjacent pieces into their aligned assembled positions or to forcibly collapse the long leg portions to draw the pieces together whereby to permit the removal of l the form from the completed concrete structure, each of the projections on the long leg portions of the pieces having a notch formation, a hook bolt extending over the notch formation and adapted to extend through the lever when in its locking position and a nut on the bolt and engageable with the lever to hold it in its locking position.
Description
1.1819, 1951 CALLAN 2,557,631
P. J. COLLAPSIBLE FORM FOR FORMING WINDOW 0R DOOR OPENINGS IN CONCRETE WALLS Filed June 12, 1948 2 Shegts-Sheet 1 INVENTOR. .PflYZ/CK u. CHLMJV P. J. CALLAN 2,557,631 COLLAPSIBLE FORM FOR FORMING WINDOW QRDOOR OPENINGS IN CONCRETE WALLS 2. Sheets- -Sheat12 June 19, 1951 Filed June 12, 1948 INVENTOR.
Patented June 19, 1951 COLLAPSIBLE FORM FOR FORMING WIN- DOW OR DOOR OPENINGS IN CONCRETE WALLS Patrick J. Callan, Manhasset, N. Y.
Application June 12, 1948, Serial No. 32,695
2 Claims. (Cl. 25128) This invention relates to forms for making poured concrete homes or buildings and more particularly to the forms used about the window and door openings.
In my pending application, Serial No. 736,685, filed March 24, 1947, now Patent No. 2,546,427 there is disclosed and claimed collapsible form arrangement for concrete wall construction of a type adapted to be set up so that an entire story of a house or the like can be poured with concrete at one time and wherein the assemblage of forms can be removed as units and set up on another foundation in short order to pour the next house. The forms for the interior of an entire room is pulled out of the top of the poured concrete. With these forms provision is made for effecting the forming of window and .door openings as the concrete is poured.
It is an object of the present invention to provide releasable door and window opening forms adapted to be used with the wall forms disclosed in my pending application and which are adapted to be retained by a set of levers located in the respective corners of the forms and which can be contracted to permit their easy removal from the wall forms without being disassembled and which can be moved to a new building site as a unit for reinsertion in the building wall forms when they too are located on the new site.
It is another object of the present invention to provide collapsible door and window opening forms which are adapted to be inserted between spaced wall forms and which have portions permitting the easy securement to the wall forms at locations interiorly of the window forms and in such a manner that the window or door opening will be formed in a smooth condition without being frayed and without work having to be done upon these openings when the forms of the same have been removed and wherein these forms will support anchor members adapted to be embedded in the concrete and serve as means to which hinges or the like fixtures for an opening may be attached when the forms have been removed.
Other objects of the present invention are to provide collapsible window and door opening forms adapted for use with poured concrete wall forms which are of simple construction, easy to assemble and install in the building wall form, inexpensive to manufacture, easy to release, which can be moved as a unit and efficient in operation.
For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection With the accompanying drawing, in which Fig. 1 is an elevational view of the door or window forms extended and locked in a wall form and embodying the features of the present invention.
Fig. 2 is an enlarged sectional view taken on line 2-2 of Fig. 1 and showing one means of bracing the wall forms on the opposite sides of the Window or door opening frame, this figure bearing the line |l on which the view of Fig. 1
was taken.
Fig. 3 is a fragmentary and sectional view of a portion of the wall which is made with these forms and looking in elevation upon one side edge of the window opening thereof.
Fig. 4 is a detail sectional view taken through the projections on which the locking lever is pivoted and on line 4-4 of Fig. 1.
Fig. 5 is a fragmentary sectional view looking in plan upon the locking lever and upon its connection with the form, the view being taken on line 55 of Fig. 1.
Fig. 6 is a fragmentary sectional view taken on line 6-6 of Fig. 1 and showing an internal lug of sleeve formation by which a bolt is retained for the connection of the opening form with the building wall form.
Fig. 7 is a fragmentary sectional View showing an anchor member retained on the form for the purpose of being supported while the concrete is being poured around the same, the view being taken on line 1-! of Fig. 1.
Fig. 8 is a perspective View of one type of an chor member.
Fig. 9 is a fragmentary sectional view of the form showing a supporting bracket for insulating material which is placed centrally of the wall forms to have concrete poured on the opposite sides of the same and whereby the window or door opening form serves as a support for this insulating material.
Fig. 10 is a perspective view of the insulating material supporting member connected to the form as shown in Fig. 9.
Fig. 11 is a fragmentary side elevational view of two adjoining form pieces with the locking lever pulled and pieces collapsed.
Referring now to the figures, l5 and I6 are respectively portions of the building wall forms between which my window or door opening forms I! are disposed as a unit, Figs. 1 and 2, and are retained against lateral displacement by the extension of bolts I8 through one of the wall form plates into sleeve projections I9 weldingly secured as indicatedat 2| at different locations within the window form and on the inwardly collapsible 1 side pieces 22, 23, 24 and 25 thereof. A net 26 and washer 21 is placed on the bolt and tightened whereby to draw the form tightly upon the wall form plate.
The wall form plates l and [6 are further retained flush against the edges of the window form I! by long bolts 28 passing through openings 3i and 32 in the respective plates, Fig. 2, and through I-beams lying flush upon the exteriors of the plates [5 and I6 as indicated respectively at 33 and 34. A nut 35 is extended on thebolt to draw the beams 33 and 34 and the plates I5 and I6 together and onto the edges of the window or door opening forms;
Each of the form pieces have a shoulder formation 36 serving to provide a jamb 31 in the finished opening of wall 38, Fig. 3. The pieces are also flared at opposite sides as indicated at 39 and 4D to provide bevel edges 4| and d2 respectively.
Each of the form pieces have a corner as indicated at 43 and from which extend a short side 44' beveled as indicated at 45 to match with a bevel face 45 of a long side A? of an adjacent piece, Figs. 1 and 11. Extending from each corner 43 are spaced projections 48 and 49 between which is extended a U-shaped locking lever 53. This lever is pivotally connected to the projections by abolt 5|, Fig. l. The bolt 5! is held in place by a nut 52. The projections 28 and 39 are welded in place as indicated respectively at 53' and 54, Fig. 4.
A long portion 47 of a piece has a projection 55 adjacent the beveled end 56 and which extends inwardly through the U-shaped locking lever and is pivotally connected thereto by a bolt 55. The lever has a handle portion 5'. which is grasped to pivot the lever and upon the lever being pushed outwardly from the position shown in Fig. 11 to the position shown in Fig. l, the beveled faces 45and45 of the pieces are brought together. The lever will be held in its adjusted position by a hook bolt 58 which extends through the-lever and has a thumbnut 59 thereon. This nut 59 will be tightened to secure the lever in place. When it is desired to free the form I? from the concrete, the thumb nut is loosened and the locking lever 58 brought inwardly whereby to overlap the pieces at their bevel faces and in the manner-show i n 11 to reduce the overall size of the form-and to permit its withdrawal from the forms. notched projection fifi.
In order that hinge brackets will be embedded in the sides of the concrete opening when-the form is removed, a bracket 62, Fig. 8, is secured to form piece .22 as shown in Fig. 7 with a recess forming plate 53 into which the hinge part may fit when the forms have been removed. The piece 63 and the bracket or anchor member 62 is seshaped retaining bracket 86' for an insulatingmember 61 to be surrounded with concrete and embedded in the finished wall. The bracket 2-3 will be leftin the side of the openingandmay serve'for the attachment to the opening of-afixture. Thebracket is held on theform by a screw 68 entering-threaded-openingtfi'ofthebracket. This screw SBwill be removed at the time the form is removed.
The hook bolt 58 is extended over aflushagainst the exteriors of the building wall form plates. It will be further apparent that the pieces making up the form can be collapsed inwardly' to' permit the removal of the form from the concrete opening and without the individual pieces being disasembled. These pieces are thus maintained in assembled relationship and delivered as a unit to the new site for another concrete building. It will be further apparent that the frame pieces serve as supports for anchors to 'which'fixtures can be attached, the anchors being embedded in the sides of the opening.
While various changes may be made in the detail construction, itshall be understod that such changes shall be within the spirit and scope of the present invention as defined by the appended claims.
I claim:
1. A collapsible window or door opening concrete form adapted for use with concrete building wall forms comprising a plurality of separable corner-shaped pieces arranged in a cluster and adjustable relative to each other, each of said corner-shaped pieces having a long leg portion and short leg portion, these portions being cut on an opposite bias to'match with one another when assembled for use in the building wall forms, projection means extending inwardly from the short leg pol-non and projection means eX tending inwardly from the long leg portion substantially adjacentthe projection means on the short leg portion, locking levers respectively disposed in-the corners of the form and respectively pivotally connected at one end to the projection means on the short leg portions and pivotally connected to the projection means on the long leg portions of the adjacent corner pieces and having a working handle at the opposite end thereof, said lockinglevers' being operable upon the pieces either to forcibly expand the leg portions of the adjacent pieces intotheir aligned assembled positions or to forcibly collapsethe long leg portions to draw the pieces together whereby to permit the removal of the form from the completed concrete structure and retaining means 'onthe respective long leg portions and connected to locking levers to hold the levels in their locking positions.
2. A' collapsible window or door opening concrete'form' adapted for use with concrete building wall for'ms' comprising a plurality of separable corner shap'ed pieces arranged in a cluster and 'adjustablerlative to each other, each of said respectively pivotally connected at one end to the projection means on the short leg portion and pivotally connected to the projection on the long leg portions of the adjacent corner pieces and lying astraddle thereof, said locking levers being operable upon the pieces either to forcibly expand the leg portions of the adjacent pieces into their aligned assembled positions or to forcibly collapse the long leg portions to draw the pieces together whereby to permit the removal of l the form from the completed concrete structure, each of the projections on the long leg portions of the pieces having a notch formation, a hook bolt extending over the notch formation and adapted to extend through the lever when in its locking position and a nut on the bolt and engageable with the lever to hold it in its locking position.
PATRICK J. CALLAN,
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
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US32695A US2557631A (en) | 1948-06-12 | 1948-06-12 | Collapsible form for forming window or door openings in concrete walls |
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US32695A US2557631A (en) | 1948-06-12 | 1948-06-12 | Collapsible form for forming window or door openings in concrete walls |
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US2557631A true US2557631A (en) | 1951-06-19 |
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US32695A Expired - Lifetime US2557631A (en) | 1948-06-12 | 1948-06-12 | Collapsible form for forming window or door openings in concrete walls |
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Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2702421A (en) * | 1950-02-24 | 1955-02-22 | O'sullivan Eugene | Apparatus for use in the construction of walls |
US2704876A (en) * | 1954-02-15 | 1955-03-29 | Jr Lawrence P Puckett | Mold for casting concrete window frames in a wall |
US2854725A (en) * | 1956-05-01 | 1958-10-07 | Wilbert W Haase Co | Cores |
US3254463A (en) * | 1963-01-24 | 1966-06-07 | Francis L Moseley | Concrete structural component and casting frame |
US3276081A (en) * | 1963-10-10 | 1966-10-04 | Ruth G Vosburg | Method of progressively collapsing core to accommodate shrinkage in casting |
US3324937A (en) * | 1963-10-10 | 1967-06-13 | Ruth G Vosburg | Progressively collapsible mold to accommodate shrinkage in casting |
US3353782A (en) * | 1964-10-02 | 1967-11-21 | Remmele Engineering Inc | Foam insulation forming device |
US3367618A (en) * | 1965-07-15 | 1968-02-06 | Richard W. Masur | Forms for cast-in-place window frames |
US3439894A (en) * | 1966-02-16 | 1969-04-22 | Alois Haider | Knockdown formwork for wall openings |
US3689020A (en) * | 1971-03-25 | 1972-09-05 | Sidney L Martin | Device useful in forming concrete structural slabs |
US3693927A (en) * | 1970-02-24 | 1972-09-26 | Economy Forms Corp | Release plate for a collapsible culvert form |
US3844526A (en) * | 1973-02-15 | 1974-10-29 | Economy Forms Corp | Vertical shaft form with cammed stripping units |
US3894711A (en) * | 1968-12-11 | 1975-07-15 | Lely Cornelis V D | Hinged wall mold for room construction |
US4047691A (en) * | 1975-02-03 | 1977-09-13 | Johann Wolf Gesellschaft M.B.H. Kg. | Fixture for use in the formation of a discharge opening of a fodder silo |
FR2451433A1 (en) * | 1979-03-16 | 1980-10-10 | Vieux Alain | Retractable shutter for building openings in reinforced concrete - has two part frame with risers and traverses to allow brackets to be cast into concrete around opening |
US4252291A (en) * | 1978-04-05 | 1981-02-24 | Armas Eduardo S | Apparatus and method for molding building modules |
US4252292A (en) * | 1979-01-25 | 1981-02-24 | Armas Eduardo S | Apparatus and method for molding the exterior of building modules |
US4465257A (en) * | 1982-01-15 | 1984-08-14 | Symons Corporation | Concrete forming structure having a double hinge filler |
US4520988A (en) * | 1984-04-23 | 1985-06-04 | Harsco Corporation | Concrete core-wall form and stripping assembly therefor |
US4520989A (en) * | 1984-04-23 | 1985-06-04 | Harsco Corporation | Concrete core-wall form and stripping assembly therefor |
US4582275A (en) * | 1984-05-03 | 1986-04-15 | Frank Ives | Collapsible mandrel |
US4666388A (en) * | 1984-01-31 | 1987-05-19 | Adema Maskin Ab | Collapsible form and device for removing form from cast concrete |
US5332191A (en) * | 1992-10-26 | 1994-07-26 | Nolan Terry L | Apparatus for making concrete slabs |
EP0846816A1 (en) * | 1996-12-04 | 1998-06-10 | Gerd Rothweiler | Form for window or door openings |
US5843323A (en) * | 1996-12-17 | 1998-12-01 | M&G Manufacturing Company Incorporated | Adjustable window pour mold mounting system |
US5855806A (en) * | 1996-07-22 | 1999-01-05 | M & G Manufacturing Company Incorporated | Window pour mold |
US20030222172A1 (en) * | 2001-02-05 | 2003-12-04 | Sanger Wallace D. | Window and door form for prefabricated concrete walls |
US20060157636A1 (en) * | 2005-01-14 | 2006-07-20 | John Bogensberger | Panel assembly for a concrete panel forming system |
US20110108701A1 (en) * | 2009-11-09 | 2011-05-12 | Daniel Heeren | Apparatus for Making Windows And Shafts In Concrete Slabs |
US10106019B2 (en) * | 2016-01-14 | 2018-10-23 | Beachcomber Offroad, Llc | Collapsible vehicle door and method of use |
US20220064968A1 (en) * | 2020-08-29 | 2022-03-03 | Apache Industrial Services, Inc. | Scissor Action Stripping Corner |
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US888334A (en) * | 1906-02-19 | 1908-05-19 | Davis B Jones | Collapsible barrel. |
US1024646A (en) * | 1911-06-24 | 1912-04-30 | Jeremiah Muckey | Mold for concrete curbs for graves. |
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US1326251A (en) * | 1919-12-30 | Mold for concrete window or door frames and trims | ||
US1387790A (en) * | 1920-04-07 | 1921-08-16 | Mccaffery Peter | Collapsible center mold for hollow walls |
US1400751A (en) * | 1920-05-11 | 1921-12-20 | Ira J Kuert | Concrete-form |
US1851399A (en) * | 1928-11-23 | 1932-03-29 | Delbert F Miller | Form for concrete walls |
US1863549A (en) * | 1927-03-02 | 1932-06-14 | Ernest H Lockwood | Method of and apparatus for casting in position architraves and the like upon faced concrete walls |
US2321277A (en) * | 1939-03-30 | 1943-06-08 | Edward D Boyle | Method of making concrete pipe |
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1948
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US1326251A (en) * | 1919-12-30 | Mold for concrete window or door frames and trims | ||
US888334A (en) * | 1906-02-19 | 1908-05-19 | Davis B Jones | Collapsible barrel. |
US1024646A (en) * | 1911-06-24 | 1912-04-30 | Jeremiah Muckey | Mold for concrete curbs for graves. |
US1041367A (en) * | 1912-01-25 | 1912-10-15 | Martin Stieler | Chimney-mold. |
US1061918A (en) * | 1912-04-27 | 1913-05-13 | Adolph F Meyer | Wall construction. |
US1387790A (en) * | 1920-04-07 | 1921-08-16 | Mccaffery Peter | Collapsible center mold for hollow walls |
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US1863549A (en) * | 1927-03-02 | 1932-06-14 | Ernest H Lockwood | Method of and apparatus for casting in position architraves and the like upon faced concrete walls |
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US2321277A (en) * | 1939-03-30 | 1943-06-08 | Edward D Boyle | Method of making concrete pipe |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2702421A (en) * | 1950-02-24 | 1955-02-22 | O'sullivan Eugene | Apparatus for use in the construction of walls |
US2704876A (en) * | 1954-02-15 | 1955-03-29 | Jr Lawrence P Puckett | Mold for casting concrete window frames in a wall |
US2854725A (en) * | 1956-05-01 | 1958-10-07 | Wilbert W Haase Co | Cores |
US3254463A (en) * | 1963-01-24 | 1966-06-07 | Francis L Moseley | Concrete structural component and casting frame |
US3276081A (en) * | 1963-10-10 | 1966-10-04 | Ruth G Vosburg | Method of progressively collapsing core to accommodate shrinkage in casting |
US3324937A (en) * | 1963-10-10 | 1967-06-13 | Ruth G Vosburg | Progressively collapsible mold to accommodate shrinkage in casting |
US3353782A (en) * | 1964-10-02 | 1967-11-21 | Remmele Engineering Inc | Foam insulation forming device |
US3367618A (en) * | 1965-07-15 | 1968-02-06 | Richard W. Masur | Forms for cast-in-place window frames |
US3439894A (en) * | 1966-02-16 | 1969-04-22 | Alois Haider | Knockdown formwork for wall openings |
US3894711A (en) * | 1968-12-11 | 1975-07-15 | Lely Cornelis V D | Hinged wall mold for room construction |
US3693927A (en) * | 1970-02-24 | 1972-09-26 | Economy Forms Corp | Release plate for a collapsible culvert form |
US3689020A (en) * | 1971-03-25 | 1972-09-05 | Sidney L Martin | Device useful in forming concrete structural slabs |
US3844526A (en) * | 1973-02-15 | 1974-10-29 | Economy Forms Corp | Vertical shaft form with cammed stripping units |
US4047691A (en) * | 1975-02-03 | 1977-09-13 | Johann Wolf Gesellschaft M.B.H. Kg. | Fixture for use in the formation of a discharge opening of a fodder silo |
US4252291A (en) * | 1978-04-05 | 1981-02-24 | Armas Eduardo S | Apparatus and method for molding building modules |
US4252292A (en) * | 1979-01-25 | 1981-02-24 | Armas Eduardo S | Apparatus and method for molding the exterior of building modules |
FR2451433A1 (en) * | 1979-03-16 | 1980-10-10 | Vieux Alain | Retractable shutter for building openings in reinforced concrete - has two part frame with risers and traverses to allow brackets to be cast into concrete around opening |
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US20060157636A1 (en) * | 2005-01-14 | 2006-07-20 | John Bogensberger | Panel assembly for a concrete panel forming system |
US20110108701A1 (en) * | 2009-11-09 | 2011-05-12 | Daniel Heeren | Apparatus for Making Windows And Shafts In Concrete Slabs |
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