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US1392496A - Concrete-form - Google Patents

Concrete-form Download PDF

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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
Application number
US306444A
Inventor
James C Hain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US306444A priority Critical patent/US1392496A/en
Application granted granted Critical
Publication of US1392496A publication Critical patent/US1392496A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/34Moulds, cores, or mandrels of special material, e.g. destructible materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/28Cores; Mandrels
    • B28B7/30Cores; Mandrels adjustable, collapsible, or expanding
    • B28B7/306Cores; Mandrels adjustable, collapsible, or expanding pliable or extensible
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S249/00Static molds
    • Y10S249/02Paper 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.

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  • 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..
US306444A 1919-06-24 1919-06-24 Concrete-form Expired - Lifetime US1392496A (en)

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

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Publication Number Publication Date
US1392496A true US1392496A (en) 1921-10-04

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Cited By (6)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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