US1392496A - Concrete-form - Google Patents
Concrete-form Download PDFInfo
- Publication number
- US1392496A US1392496A US306444A US30644419A US1392496A US 1392496 A US1392496 A US 1392496A US 306444 A US306444 A US 306444A US 30644419 A US30644419 A US 30644419A US 1392496 A US1392496 A US 1392496A
- Authority
- US
- United States
- Prior art keywords
- frame
- concrete
- covering
- plastic material
- envelopment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
- B28B7/306—Cores; Mandrels adjustable, collapsible, or expanding pliable or extensible
-
- 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
- Y10S249/00—Static molds
- Y10S249/02—Paper core
Definitions
- My invention relates to a means for producing hollow units particularly from plastic material, such as concrete .and other cementitious compositions, and it has especial reference to a form for making hollow concrete block, structural units or parts of buildings.
- an object of the invention being to provide a simple and particularly an economical device of light and strong construction, in which the smallest possible amount of wood or other material may be used.
- FIG. 1 is a perspective View of a frame showing part of the covering adapted therefor, and
- Fig. 2 is a plan view showing the form embedded in a concretiffy mass.
- My invention relates to that especial art of forming structural units which contemplates the application of the cement, concrete, or other plastic building material, undcr pressure, but is not restricted in that respect, since use of the completed form may be made in the manufacture of building units by other methods.
- My invention may comprise a frame 1, that for the purposes of this specification may consist of strips 2, preferably heldtogether and spaced by a suitable plate 3.
- a sheathing or covering 4 of any suitable material, as paper, and such sheathing or covering may be wound spirally about the frame, as shown, and preferably at such a pitch that the convolutions overlap.
- the sheathing or covering 4 may be moistened or otherwise treated previous to applying the same to the frame, whereby shrinkage, contraction or warpingof the covering resulting from drying, shall more closely and intimately envelop and bond the strips of the frame, and at the same time offer suflicient resistance to the concrete or cement when applied under pressure.
- a form for envelopment by a plastic material comprising a frame wound with paper.
- a form for envelopment by a plastic material comprising a frame spirally wound with a fibrous material.
- a form .for envelopment by a'plastic material comprising a frame having a cover ing shrunk thereon.
- a form for envelopment by a plastic material comprising a frame having a fibrous covering spirally wound and shrunk thereon.
- a form for making hollow plastic bodies comprising a frame having a strip of paper wound thereabout and shrunk thereon.
- A. form for' making hollow plastic bodies comprising a frame having a fibrous material spirally wound thereabout with the convolutions overlapping.
- a form for making hollow plastic bodies comprising a frame spirally wound with paper previously moistened and shrunk thereon.
- a core for casting hollow units of plastic material comprising a frame having a flexible covering thereon previously moistened to cause a contraction thereof after application.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
J. C. HAIN.
CONCRETE FORM.
/ APPLICATION FILED JUNE 24.1919.
Patented Oct. 4, 1921. I
Jdnud T; UNITED STATES PATENT OFFICE.
JAMES C. HAIR, OF LOS ANGELES, CALIFORNIA.
CONCRETE-FORM. I
Specification of Letters Patent.
Patented Oct; 4, 1921.
Application filed .Tune 24, 1919. Serial No. 306,444.
T 0 all whom it may concern:
Be it known that I, JAMES C. HAIN, a citizen of the United States, residing at Los Angeles, county of Los Angeles, and State of California, have invented a certain new and useful Concrete-Form, of which the following is a specification.
My invention relates to a means for producing hollow units particularly from plastic material, such as concrete .and other cementitious compositions, and it has especial reference to a form for making hollow concrete block, structural units or parts of buildings. an object of the invention being to provide a simple and particularly an economical device of light and strong construction, in which the smallest possible amount of wood or other material may be used.
This and other objects are accomplished by the design illustrated in the accompanying drawing and showing one of a variety of forms embodying my invention. Therein Figure 1 is a perspective View of a frame showing part of the covering adapted therefor, and
Fig. 2 is a plan view showing the form embedded in a concretionary mass.
, My invention relates to that especial art of forming structural units which contemplates the application of the cement, concrete, or other plastic building material, undcr pressure, but is not restricted in that respect, since use of the completed form may be made in the manufacture of building units by other methods.
My invention may comprise a frame 1, that for the purposes of this specification may consist of strips 2, preferably heldtogether and spaced by a suitable plate 3. Around the strips 2 of the form is placed a sheathing or covering 4, of any suitable material, as paper, and such sheathing or covering may be wound spirally about the frame, as shown, and preferably at such a pitch that the convolutions overlap.
In order that the strips 2 of the frame may be held rigid and firmly bonded, so that subsequent swelling thereof shall not cause faults, breakage or cracks in the concrete mass applied thereto, the sheathing or covering 4, may be moistened or otherwise treated previous to applying the same to the frame, whereby shrinkage, contraction or warpingof the covering resulting from drying, shall more closely and intimately envelop and bond the strips of the frame, and at the same time offer suflicient resistance to the concrete or cement when applied under pressure.
What I claim, is
1. A form for envelopment by a plastic material comprising a frame wound with paper.
2. A form for envelopment by a plastic material comprising a frame spirally wound with a fibrous material.
3. A form .for envelopment by a'plastic material comprising a frame having a cover ing shrunk thereon.
4:. A form for envelopment by a plastic material comprising a frame having a fibrous covering spirally wound and shrunk thereon.
5. A form for making hollow plastic bodies comprising a frame having a strip of paper wound thereabout and shrunk thereon.
6. A. form for' making hollow plastic bodies comprising a frame having a fibrous material spirally wound thereabout with the convolutions overlapping.
7 A form for making hollow plastic bodies comprising a frame spirally wound with paper previously moistened and shrunk thereon.
8. A core for casting hollow units of plastic material comprising a frame having a flexible covering thereon previously moistened to cause a contraction thereof after application.
In testimony whereof I have set my hand.
J. C. HAIN..
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US306444A US1392496A (en) | 1919-06-24 | 1919-06-24 | Concrete-form |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US306444A US1392496A (en) | 1919-06-24 | 1919-06-24 | Concrete-form |
Publications (1)
Publication Number | Publication Date |
---|---|
US1392496A true US1392496A (en) | 1921-10-04 |
Family
ID=23185306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US306444A Expired - Lifetime US1392496A (en) | 1919-06-24 | 1919-06-24 | Concrete-form |
Country Status (1)
Country | Link |
---|---|
US (1) | US1392496A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015859A (en) * | 1959-05-13 | 1962-01-09 | Sheldon J Baer | Process for molding covered rigid and semirigid bodies |
US3418695A (en) * | 1966-09-30 | 1968-12-31 | Howard B. Claflin | Paperboard form construction for rubber mold |
US3661047A (en) * | 1968-11-18 | 1972-05-09 | Us Navy | Apparatus for casting thin walled hollow cylindrical inserts |
US3942583A (en) * | 1969-05-30 | 1976-03-09 | Eduard Baur | Lost plastic pattern for casting |
US4494351A (en) * | 1981-08-18 | 1985-01-22 | Coles Cranes Limited | Booms for cranes or the like |
FR2668524A1 (en) * | 1990-10-24 | 1992-04-30 | Ricard Coffrages | Method for manufacture of formworks, and formworks for the erection of walls having a curvilinear or angular profile |
-
1919
- 1919-06-24 US US306444A patent/US1392496A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015859A (en) * | 1959-05-13 | 1962-01-09 | Sheldon J Baer | Process for molding covered rigid and semirigid bodies |
US3418695A (en) * | 1966-09-30 | 1968-12-31 | Howard B. Claflin | Paperboard form construction for rubber mold |
US3661047A (en) * | 1968-11-18 | 1972-05-09 | Us Navy | Apparatus for casting thin walled hollow cylindrical inserts |
US3942583A (en) * | 1969-05-30 | 1976-03-09 | Eduard Baur | Lost plastic pattern for casting |
US4494351A (en) * | 1981-08-18 | 1985-01-22 | Coles Cranes Limited | Booms for cranes or the like |
FR2668524A1 (en) * | 1990-10-24 | 1992-04-30 | Ricard Coffrages | Method for manufacture of formworks, and formworks for the erection of walls having a curvilinear or angular profile |
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