US1635093A - Mold and process of molding faced concrete blocks - Google Patents

Mold and process of molding faced concrete blocks Download PDF

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Publication number
US1635093A
US1635093A US736745A US73674524A US1635093A US 1635093 A US1635093 A US 1635093A US 736745 A US736745 A US 736745A US 73674524 A US73674524 A US 73674524A US 1635093 A US1635093 A US 1635093A
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United States
Prior art keywords
mold
sheet
block
corrugations
concrete blocks
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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
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US736745A
Inventor
Mcpherson Donald
Frederick B Schultz
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.)
KEYROID CEMENT BLOCK CO Inc
Original Assignee
KEYROID CEMENT BLOCK CO Inc
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Application filed by KEYROID CEMENT BLOCK CO Inc filed Critical KEYROID CEMENT BLOCK CO Inc
Priority to US736745A priority Critical patent/US1635093A/en
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Publication of US1635093A publication Critical patent/US1635093A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/162—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for building blocks or similar block-shaped articles
    • 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
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • 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
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • B28B7/0035—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding
    • B28B7/0044—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding the sidewalls of the mould being only tilted away from the sidewalls of the moulded article, e.g. moulds with hingedly mounted sidewalls
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/57—Processes of forming layered products

Definitions

  • This invention relates to molds and more particularly. to a mold designed for forming concrete building blocks, an object of the invention being to provide a mold which will properly shape the block, which can be read; ily opened to discharge or release the block, and which will hold the block when partially formed so that it can be reversed and facing material located thereon.
  • a further object is .to provide a mold which is designed for making blocks such as disclosed in the prior application of F. B. Schultz, filed March 17, 1924, Serial No. 699,920.
  • a further object is to provide a mold composed of sheet metal, having means for locking the sections in rectangular formation and which means permit the ready 0 'eningor separation of the sections to disc arge the block.
  • a further object is to provide .a mold of this character which can and sold at a.v reasonably low price, which will have long life and which will most efliciently perform the functions for which it is intended.
  • Figure 1 is a perspective view of our improved mold showing the same 'in partially open position
  • Figure 2 is a top plan view of the mold showing the form and waterproofflmaterial located thereon at the bottom of the mold;
  • Figure 3 is a view in vertical section il lustrating the first stage of the block molding operation
  • Figure 4 is a fragmentary viewiinvertical section showing the mold reversed and illustrating the completed molding operation
  • Figure 5 is a perspective view of a block formedin our improved mold.
  • Our improved mold comprises four mem-' bers, namely, side members 1 and 2 and end members 3 and 4.
  • the side members are preferably longer than the end members and all of said members are preferably composed of relatively heavy sheet metal 'havbe manufactured niiig longitudinal inwardly projecting curved 0 set portions 5.
  • the material of the sides and ends at the offset portions are out at an angle soas to allow the members I, 2, 3 and 4 to be arranged in rectangular formation and closely fit one against the other to form a ti ht mold.
  • T e sides 1 and 2 are connected tothe end 3 by hinge pins 6. These hinge pins are projected through .alined sleeves 7 on the respective sections and may be permanently or removably. secured as may be desired.
  • the end section 4 is connected to the 'side section 1 by a hinge pin 6, as above described in connection with the other'sections, but the end section 4 and side section 2 are removably connected so as to allow the sections to be swung on their hinge pins and opened as much as may be desired. 7
  • a closing means for the mold or, in other words, as a means for connecting member 4 with the side member 2, we preferably provide a pair of plungers or locking pins 8 located in sleeves 9 on side member 2 and adapted to engage in corresponding sleeves 10 on end section 4. These locking pins or plungers 8 are preferably provided with fingerholds 11 at their inner ends so that they may be conveniently manipulated either to lock the mold sections together or to permit their release.
  • a form 12 is located in the bottom of the mold.
  • This form 12 may constitute a strip of wood or other suitable material having transverse blocks or strips 13 on its up per face. These blocks or stri s 13 are spaced apart as may be desire ,and on top of the form a sheet- 14 of waterproof material is located.
  • This sheet 14 is corrugated before positioning on tlie mold and the corrugations are of appreciably greater width than the width of the strips 13, so that when the sheet 14 is placed onthe form the corrugations of the sheet 14 Will assume a dovetail formation.
  • the concrete 15 preferably wet, is poured into the mold so as to fill the same flush with the upper edge as indicated in Figure 3.
  • the mold is reversed and the form 12 reinto the mold on top of the waterproofing sheet 14 and smoothed or surfaced as may be desired and allowed to remain in the mold until sufiiciently set.
  • the block is ready for removal the mold sections 2 and 4 are disconnected and then the mold is swung -to open position, the hinge pins 6 permitting the waterproofing sheet 14 the passage of moisture through the block is absolutely prevented and the facing is secured to the block by a dovetail interlock.
  • the method of forming molded waterproof building blocks which consists in inserting in the bottom of the mold a spacing bottom; in laying on said bottom asheet of waterproof material; in filling the mold space above the sheet with block material; in permitting the material to harden; in in verting the mold and its contents; in removing the spacing bottom; in filling the mold space above the opposite side of the sheet with block material; in permitting the block material to harden and in removing the completed block from the mold.
  • proof building blocks which consists in inserting in the bottom of the mold a spacing bottom; in laying horizontally on said mold bottom a sheet of waterproof material having on opposite sides complementary depressions dovetail in section; in filling the mold space and dovetail depressions of the sheet with the soft block material; in permitting the soft block material to harden; in inverting the mold and its contained proof building blocks which consists in 'inserting in the bottom of the mold a spacing bottom having a series of ribs on its inside; in forming in a sheet of flexible waterproof material corrugations corresponding to the ribs but deeper and wider than the same; in contracting the sheet horizontally so as to dovetail the corrugations; in laying the corrugated sheet on the ribbed mold bottom so that the open corrugations will rest 011 the bottom-between the ribs and the closed corrugations will rest on the ribs; in filling the mold space above the sheet and the dovetail corrugations therein with the soft block material; in permitting the material to harden; in invert
  • Means for forming molded waterproof building blocks comprising a mold, a removable bottom to fill the space in the bottom of the mold and having elevations on its inside and a sheet of waterproof material having on opposite sides complementary depressions dovetail in section and corresponding to the elevations on the bottom, the open depressions to rest on the bottom, between the corresponding elevations and the closed depressions to rest on the corresponding elevations of the bottom.
  • Means for forming molded waterproof building blocks by molding material on opposite sides of a waterproof sheet formed 2.
  • the method of forming molded waterwith dovetail corrugations, comprising a mold, and a removable bottom to fill the space in the bottom of the mold, said bottom having in its inside a series of parallel corrugations corresponding to but a little narrower and'lower or shallower than the dlpvetail corrugations in the waterproofing s eet.
  • DONALD MoPHERSON FREDERICK B. SCHULTZ.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Description

July 5, 1927.
- 1,635,093" D. M PHERSON ET AL MOLD AND PROCESS OF MOLDING FACED CQNCRETE BLOCKS Filed Sept. 9, 1924 WITNESSES A? INVENTOR goA/Aw M pHf/wo/v BY V ATTORNEYS Patented Julv5,1927.
' UNITED STATES 1 1,535,993 PATENT oFFIca.
DONALD MOPHERSON AND FREDERICK B. SCHULTZ, OF NEW YORK, N. Y., ASSIG'NOBS TO xmmorn cnunn'r isnocx co., 11m, or
NEW vonx. ,1
CORONA, NEW YORK, A CORPORATION OF 4 MOLD AND PROCESS OF MOLDING FACED CONCRETE BLOCKS.
Application filed September 9, 1924. Serial No. 786,745.
This invention relates to molds and more particularly. to a mold designed for forming concrete building blocks, an object of the invention being to provide a mold which will properly shape the block, which can be read; ily opened to discharge or release the block, and which will hold the block when partially formed so that it can be reversed and facing material located thereon.
A further object is .to provide a mold which is designed for making blocks such as disclosed in the prior application of F. B. Schultz, filed March 17, 1924, Serial No. 699,920.
A further object is to provide a mold composed of sheet metal, having means for locking the sections in rectangular formation and which means permit the ready 0 'eningor separation of the sections to disc arge the block.
A further object is to provide .a mold of this character which can and sold at a.v reasonably low price, which will have long life and which will most efliciently perform the functions for which it is intended.
With these and other objects in view, the
invention consists in certain novel features of construction .and combinations and arrangements of parts which will be more fully hereinafter described and pointed out in the claims.
In the accompanying drawings- Figure 1 is a perspective view of our improved mold showing the same 'in partially open position;
Figure 2 is a top plan view of the mold showing the form and waterproofflmaterial located thereon at the bottom of the mold;
Figure 3 is a view in vertical section il lustrating the first stage of the block molding operation;
Figure 4 is a fragmentary viewiinvertical section showing the mold reversed and illustrating the completed molding operation; p
Figure 5 is a perspective view of a block formedin our improved mold.
Our improved mold comprises four mem-' bers, namely, side members 1 and 2 and end members 3 and 4. The side members are preferably longer than the end members and all of said members are preferably composed of relatively heavy sheet metal 'havbe manufactured niiig longitudinal inwardly projecting curved 0 set portions 5. The material of the sides and ends at the offset portions are out at an angle soas to allow the members I, 2, 3 and 4 to be arranged in rectangular formation and closely fit one against the other to form a ti ht mold.
T e sides 1 and 2 are connected tothe end 3 by hinge pins 6. These hinge pins are projected through .alined sleeves 7 on the respective sections and may be permanently or removably. secured as may be desired. The end section 4 is connected to the 'side section 1 by a hinge pin 6, as above described in connection with the other'sections, but the end section 4 and side section 2 are removably connected so as to allow the sections to be swung on their hinge pins and opened as much as may be desired. 7
As a closing means for the mold, or, in other words, as a means for connecting member 4 with the side member 2, we preferably provide a pair of plungers or locking pins 8 located in sleeves 9 on side member 2 and adapted to engage in corresponding sleeves 10 on end section 4. These locking pins or plungers 8 are preferably provided with fingerholds 11 at their inner ends so that they may be conveniently manipulated either to lock the mold sections together or to permit their release.
In operation the mold sections are secured in closed position ,as in Figures 2 and 3, and a form 12 is located in the bottom of the mold. This form 12 may constitute a strip of wood or other suitable material having transverse blocks or strips 13 on its up per face. These blocks or stri s 13 are spaced apart as may be desire ,and on top of the form a sheet- 14 of waterproof material is located. This sheet 14 is corrugated before positioning on tlie mold and the corrugations are of appreciably greater width than the width of the strips 13, so that when the sheet 14 is placed onthe form the corrugations of the sheet 14 Will assume a dovetail formation. With the form and waterproof sheet positioned in the mold the concrete 15, preferably wet, is poured into the mold so as to fill the same flush with the upper edge as indicated in Figure 3. As soon as this material is sufliciently set, the mold is reversed and the form 12 reinto the mold on top of the waterproofing sheet 14 and smoothed or surfaced as may be desired and allowed to remain in the mold until sufiiciently set. When the block is ready for removal the mold sections 2 and 4 are disconnected and then the mold is swung -to open position, the hinge pins 6 permitting the waterproofing sheet 14 the passage of moisture through the block is absolutely prevented and the facing is secured to the block by a dovetail interlock.
Various slight changes and alterations might be made in the general form of the parts described without departing from our invention, and hence we do not limit ourselves to the precise details set forth but consider ourselves at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims.
We claim:
1. The method of forming molded waterproof building blocks, which consists in inserting in the bottom of the mold a spacing bottom; in laying on said bottom asheet of waterproof material; in filling the mold space above the sheet with block material; in permitting the material to harden; in in verting the mold and its contents; in removing the spacing bottom; in filling the mold space above the opposite side of the sheet with block material; in permitting the block material to harden and in removing the completed block from the mold.
proof building blockswhich consists in inserting in the bottom of the mold a spacing bottom; in laying horizontally on said mold bottom a sheet of waterproof material having on opposite sides complementary depressions dovetail in section; in filling the mold space and dovetail depressions of the sheet with the soft block material; in permitting the soft block material to harden; in inverting the mold and its contained proof building blocks which consists in 'inserting in the bottom of the mold a spacing bottom having a series of ribs on its inside; in forming in a sheet of flexible waterproof material corrugations corresponding to the ribs but deeper and wider than the same; in contracting the sheet horizontally so as to dovetail the corrugations; in laying the corrugated sheet on the ribbed mold bottom so that the open corrugations will rest 011 the bottom-between the ribs and the closed corrugations will rest on the ribs; in filling the mold space above the sheet and the dovetail corrugations therein with the soft block material; in permitting the material to harden; in inverting the mold and its contents, and removing the ribbed spacing bottom; in filling the opposite mold space and dovetail corrugations of the sheet with soft block material; in permitting the material to harden; and in removing the completed block from the mold.
4. Means for forming molded waterproof building blocks, comprising a mold, a removable bottom to fill the space in the bottom of the mold and having elevations on its inside and a sheet of waterproof material having on opposite sides complementary depressions dovetail in section and corresponding to the elevations on the bottom, the open depressions to rest on the bottom, between the corresponding elevations and the closed depressions to rest on the corresponding elevations of the bottom.
5. Means for forming molded waterproof building blocks by molding material on opposite sides of a waterproof sheet formed 2. The method of forming molded waterwith dovetail corrugations, comprising a mold, and a removable bottom to fill the space in the bottom of the mold, said bottom having in its inside a series of parallel corrugations corresponding to but a little narrower and'lower or shallower than the dlpvetail corrugations in the waterproofing s eet.
DONALD MoPHERSON. FREDERICK B. SCHULTZ.
US736745A 1924-09-09 1924-09-09 Mold and process of molding faced concrete blocks Expired - Lifetime US1635093A (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475435A (en) * 1945-06-02 1949-07-05 Laird B Warrington Block mold
US2570384A (en) * 1948-08-16 1951-10-09 Russell Titus Mold for concrete blocks and the like
US2819495A (en) * 1951-10-03 1958-01-14 Krausz Isidor Method of making building blocks
US3307821A (en) * 1964-09-24 1967-03-07 Torricelli Decio Gang mold assembly for concrete blocks
US4443981A (en) * 1981-09-03 1984-04-24 David Weiss Concrete form system
US4451022A (en) * 1982-04-07 1984-05-29 Sauger Lawrence M Ready pad for concrete
US5632926A (en) * 1995-05-10 1997-05-27 Dyer, Jr.; Artega C. Snowman mold
FR2743524A1 (en) * 1996-01-16 1997-07-18 Knauf Casting method of concrete construction panel or slab with waterproof coating
US6773642B1 (en) * 2002-01-04 2004-08-10 Michael James Wardell Method of forming a concrete retaining wall block in a front face up position
US20050016123A1 (en) * 2003-07-25 2005-01-27 R. I. Lampus Company Insert apparatus for a mold, method of manufacturing a concrete unit, method of installing a wall and method of retrofitting an existing mold
US20050183360A1 (en) * 2003-07-25 2005-08-25 R. I. Lampus Company Insert apparatus for a mold, method of manufacturinging a structural unit, method of retrofitting an existing mold and a structural unit
US20050217416A1 (en) * 2004-04-02 2005-10-06 Alan Berry Overmolded article and method for forming same
US20090311451A1 (en) * 2003-07-25 2009-12-17 R.I. Lampus Company Insert Apparatus for a Mold, Method of Manufacturing a Structural Unit, Method of Retrofitting an Existing Mold, and a Structural Unit
US20140166848A1 (en) * 2012-12-19 2014-06-19 Marty Hunt Collapsible cardboard concrete form
US20150084234A1 (en) * 2009-05-22 2015-03-26 John Fifield Building block and cladding system
EP3653806A1 (en) * 2008-09-25 2020-05-20 Prime Forming & Construction Supplies, Inc., Dba Fitzgerald Formliners Formliner and method of use
US11027455B2 (en) 2015-12-28 2021-06-08 Prime Forming & Construction Supplies, Inc. Formliner for forming a pattern in curable material and method of use
US11274457B2 (en) 2015-02-14 2022-03-15 Prime Forming & Construction Supplies, Inc. Formliners and methods of use
CN114800796A (en) * 2022-05-11 2022-07-29 辽宁工程技术大学 Concrete prefabricated mold based on worm and gear principle and demolding method

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475435A (en) * 1945-06-02 1949-07-05 Laird B Warrington Block mold
US2570384A (en) * 1948-08-16 1951-10-09 Russell Titus Mold for concrete blocks and the like
US2819495A (en) * 1951-10-03 1958-01-14 Krausz Isidor Method of making building blocks
US3307821A (en) * 1964-09-24 1967-03-07 Torricelli Decio Gang mold assembly for concrete blocks
US4443981A (en) * 1981-09-03 1984-04-24 David Weiss Concrete form system
US4451022A (en) * 1982-04-07 1984-05-29 Sauger Lawrence M Ready pad for concrete
US5632926A (en) * 1995-05-10 1997-05-27 Dyer, Jr.; Artega C. Snowman mold
FR2743524A1 (en) * 1996-01-16 1997-07-18 Knauf Casting method of concrete construction panel or slab with waterproof coating
US6773642B1 (en) * 2002-01-04 2004-08-10 Michael James Wardell Method of forming a concrete retaining wall block in a front face up position
US20050183360A1 (en) * 2003-07-25 2005-08-25 R. I. Lampus Company Insert apparatus for a mold, method of manufacturinging a structural unit, method of retrofitting an existing mold and a structural unit
US20050016123A1 (en) * 2003-07-25 2005-01-27 R. I. Lampus Company Insert apparatus for a mold, method of manufacturing a concrete unit, method of installing a wall and method of retrofitting an existing mold
US7575217B2 (en) 2003-07-25 2009-08-18 R. I. Lampus Company Insert apparatus for a mold, method of manufacturing a structural unit, method of retrofitting an existing mold and a structural unit
US20090311451A1 (en) * 2003-07-25 2009-12-17 R.I. Lampus Company Insert Apparatus for a Mold, Method of Manufacturing a Structural Unit, Method of Retrofitting an Existing Mold, and a Structural Unit
US20050217416A1 (en) * 2004-04-02 2005-10-06 Alan Berry Overmolded article and method for forming same
EP3653806A1 (en) * 2008-09-25 2020-05-20 Prime Forming & Construction Supplies, Inc., Dba Fitzgerald Formliners Formliner and method of use
US20150084234A1 (en) * 2009-05-22 2015-03-26 John Fifield Building block and cladding system
US20140166848A1 (en) * 2012-12-19 2014-06-19 Marty Hunt Collapsible cardboard concrete form
US9249587B2 (en) * 2012-12-19 2016-02-02 Marty Hunt Collapsible cardboard concrete form
US11274457B2 (en) 2015-02-14 2022-03-15 Prime Forming & Construction Supplies, Inc. Formliners and methods of use
US11027455B2 (en) 2015-12-28 2021-06-08 Prime Forming & Construction Supplies, Inc. Formliner for forming a pattern in curable material and method of use
US11725402B2 (en) 2015-12-28 2023-08-15 Prime Forming & Construction Supplies, Inc. Formliner for forming a pattern in curable material and method of use
CN114800796A (en) * 2022-05-11 2022-07-29 辽宁工程技术大学 Concrete prefabricated mold based on worm and gear principle and demolding method

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