US2745165A - Paving form structure - Google Patents

Paving form structure Download PDF

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US2745165A
US2745165A US450605A US45060554A US2745165A US 2745165 A US2745165 A US 2745165A US 450605 A US450605 A US 450605A US 45060554 A US45060554 A US 45060554A US 2745165 A US2745165 A US 2745165A
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paving
form
means
side
formed
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US450605A
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William H Lewis
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JOINT SAW Co
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JOINT SAW Co
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/50Removable forms or shutterings for road-building purposes; Devices or arrangements for forming individual paving elements, e.g. kerbs, in situ
    • E01C19/502Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes
    • E01C19/504Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes adapted to, or provided with, means to maintain reinforcing or load transfer elements in a required position

Description

May 15, 1956 w, gw s 2,745,165

PAVING FORM STRUCTURE Filed Aug. 18, 1954 IN V EN TOR. kV/LL/AM LEW/s United States Patent PAVING FORM STRUCTURE William H. Lewis, Pasadena, Calif., assignor to Joint Saw Company, Arcadia, Califi, a corporation of California Application August 18, 1954, Serial No. 450,605

6 Claims. (Cl. 25-118) The present invention relates generally to the field of road building and more particularly to a new and novel paving form structure to be utilized in laying pavement.

When concrete roads and other concrete surfaces are laid it is common practice to form the lanes or sections of the road in separate parallel lengths. In order to bind adjoining lanes or sections together so that they may be maintained in the same horizontal plane and prevented from spreading away from one another, transverse metallic paving dowels are embedded in the concrete of the lanes or sections as they are laid, said dowels having a first portion which is embedded within the first-poured concrete and a second portion which extends into the space to be occupied by a subsequently-poured lane. In this manner the separately poured lanes or sections are maintained in lateral and longitudinal alignment and movement of one lane or section with reference to another is prevented.

The sides of the lanes or sections are initially defined by a pair of parallel steel side form members between which the paving material is poured. Each side form includes a base that rests upon the ground and a form wall extending upwardly therefrom. A groove-forming element, commonly termed a key strip, is secured to the form wall of the side form in order to define a groove in the hardened pavement. This groove is adapted to receive a complementary tongue formed in the adjacent lane or section of pavement when the latter is laid. The side forms are temporarily anchored to the ground while the paving material is poured therebetween by means of a plurality of longitudinally-spaced steel stakes. the paving material has hardened the steel stakes are withdrawn from the ground and the side forms are raised. Thereafter, the key strips are likewise removed and the exposed portions of the dowels are bent outwardly from the hardened pavement.

It is a particular problem of the heretofore-proposed paving form structures of this nature that the key strips are so secured to the side forms that the latter must first be moved laterally some distance away from the hardened pavement before they may be raised upwardly. This necessitates the separate withdrawl of each steel stake by a special lifting jack. Thereafter, each side form is first moved laterally away from the key strip whereby it may be disengaged therefrom (the keyxstrip temporarily remaining in the hardened pavement), and then upwardly by means of a crane.

It is a major object of the present invention to eliminate the necessity of removing the steel stakes before raising the side forms. By the use of the present invention the After side forms and the stakes may be lifted simultaneously in a single operation. This object is accomplished by the use of a novel key strip and means for fastening it to the side forms that eliminates the necessity of moving the latter laterally away from the key strip before raising it upwardly from the ground. The elimination of this extra step affords a considerable saving in time and money.

Another object of the invention is to provide a paving form structure of the aforedescribed nature which may be utilized with existing side forms.

A further object is to provide a paving structure of the aforedescribed nature which is extremely simple to use and which is foolproof in operation.

Yet another object of the invention is to provide a paving form of the aforedescribed nature which requires no special tools in its use.

An important object is to provide a paving form structure of the aforedescribed nature by the use of which leakage of concrete past the side form is completely eliminated.

These and other objects and advantages of the present invention will become more apparent from the following detailed description of a preferred embodiment thereof, when taken in conjunction with the appended drawings wherein:

Figure 1 is a perspective view of a paving form structure embodying the present invention;

Figure 2 is a vertical sectional view showing a first step in a paving operation utilizing said structure;

Figure 3 is a fragmentary perspective view of a key strip utilized in the paving structure embodying the present invention; and

Figures 4 and 5 are vertical sectional views showing subsequent steps in a paving operation utilizing said structure.

Referring to the drawings, the novel paving structure of the present invention is adapted for use with a pair of conventional steel side forms F (only one of which is shown) having a horizontal base it a form wall 12 extending vertically upwardly therefrom and a tread 14 formed at the upper end of the form wall. The base it) initially rests upon the prepared bed 20 of the roadway or other surface to be covered with paving material. The tread 14 receives the wheels of a paving, grading or other type of machine which may travel along the side forms F during the preparation of the pavement.

Each side form F is temporarily secured to the ground alongside the lane or section to be paved by means of a plurality of longitudinally spaced steel stakes S. The latter extend through vertically aligned bores formed in the base 10 and the tread 14 of the side forms. These stakes S serve to positively anchor the side forms in place while paving material 22 is being poured therebetween. In order to form a groove 26 in the edge 28 of the pavement material 22 which is to abut another lane or section of the roadway, the present invention contemplates the use of a key strip K. The latter is temporarily secured to the face 29 of the side form F by a plurality of horizontally spaced lock means L. After the paving material 22 has hardened the side form F and key strip K are removed from the edge 28 of the paving material 22, the key strip K having formed the groove 26. This groove 26 will cooperate with a complementary tongue formed when a second lane (not shown) is poured alongside the hardened paving material 22.

The preferred form of key strip K includes a rear wall 34 from which extends integral top and bottom walls 36 and 38, respectively, the latter tapering forwardly and toward one another. The top and bottom walls 36 and 38 merge into an integral front wall 40 that is formed with a rearwardly extending generally semi-circular recess 42.

The lock means L may consist of a plurality of conventional sheet metal fasteners of a well known construction. The front portion of these fasteners L are adapted to be inserted within complementary aligned gaged from the side form F. It should be noted that although the sheet metal fasteners illustrated in the drawings have proven to be very satisfactory in actual use, other types of quick-release lock means may be .utilized.

The subsequently-poured pavement lanes or sections are adapted to be bound together by steel dowels D. These dowels D have a first portion 50 which is to be embedded within the hardened paving material 22 and a second portion 52 that extends from the latter in order that it may be embedded in the paving material of a subsequently-poured lane. The first portion 50 of the dowel includes a horizontal main element 54, the front end of which is bent downwardly so as to form a foot 56 which rests upon the ground while the paving material 22 is being poured. The front end of the first dowel portion 50 integrally merges into the second portion 52 thereof. Originally, this second portion 52 is bent at right angles to the first dowel portion 50 and is disposed within the recess 42 of the key strip K. It may be temporarily secured within this recess 42 by means of suit able wire retainers or nails 58. The latter extend downwardly through vertically aligned bores 59 and 60 formed in the key strip K and forwardly over the front of the second dowel portion 50, as shown in Figures 2 and 4.

In the utilization of the novel paving structure of the present invention for a paving operation the aforedescribed elements are initially positioned as shown in Figure 1. Next, the paving material 22 is poured alongside the face of the side form F, as indicated in Figure 2. After this paving material 22 has hardened, the front of the sheet metal fasteners L are withdrawn from the aligned bores 44 and 46, as indicated by dotted outline in Figure 2. The key strip K will then be disengaged from the face 12 of the side form F. The side form F and the stakes S may then be simultaneously raised off the ground as by a crane (not shown) having a lifting hook 70. It should be particularly noted that the side form F and the stakes S are raised simultaneously in a single operation. When the side form F and the stakes S are clear of the edge 28 of the hardened paving material 22, the key strip K may be laterally withdrawn from the groove 26 formed thereby. Finally, as indicated in Figure 5, the second portion 52 of the dowel D may be bent outwardly away from the edge 28 into the space to be filled by a second lane of paving material (not shown).

While there has been shown and described hereinbefore what is presently considered to be the preferred embodiment of the present invention, it will be apparent that various modifications and changes may be made with respect thereto without departing from the spirit of the invention or the scope of the following claims.

I claim:

1. In a paving form structure that includes a side form, the combination of an elongated key strip having vertical rear wall means which abut one side of said side form, a pair of top and bottom walls tapering forwardly and toward one another from said rear wall means and merging into a front wall having its intermediate portion curved rearwardly so as to define a generally semi-circular paving dowel receiving-recess, the front portion of one of said forwardly tapering walls being formed with a plurality of longitudinally spaced apertures each of which are substantially vertically aligned with a second aperture formed in the front part of the adjacent rearwardly curved portion of said front wall, each of said pair of apertures receiving a paving dowel retaining-element insertible therein from the exterior of said key strip; a plurality of fastener means, each horizontally insertible through a bore formed in said side form; and a plurality of longitudinally spaced receiving means for said fastener means formed on the rear wall means of said key strip.

2. In a paving form structure that includes a side form, the combination of an elongated key strip having vertical rear wall means which abut one side of said side form, a

pair of top and bottom walls tapering forwardly and toward one another from said rear wall means and merging into a front wall having its intermediate portion curved rearwardly so as to define a generally semi-circular paving dowel receiving-recess, the front portion of one of said forwardly tapering walls being formed with a plurality of longitudinally spaced apertures each of which are substantially vertically aligned with a second aperture formed in the front part of the adjacent rearwardly curved portion of said front wall, each of said pair of apertures receiving a paving dowel retaining-element insertible therein from the exterior of said key strip; a plurality of fastener means, each horizontally insertible through a bore formed in said side form; and a plurality of longitudinally spaced bores for receiving said fastener means formed in the rear wall means of said key strip.

3. An elongated key strip for use with a paving side form, including vertical rear wall means which abut one side of said side form, a pair of top and bottom walls tapering forwardly and toward one another from said rear wall means and merging into a front wall having its intermediate portion curved rearwardly so as to define a generally semi-circular paving dowel receiving-recess, the front portion of one of said forwardly tapering walls being formed with a plurality of longitudinally spaced apertures each of which are substantially vertically aligned with a second aperture formed in the front part of the adjacent rearwardly curved portion of said front wall, each of said pair of apertures receiving a paving dowel retaining-element insertible therein from the exterior of said key strip, and a plurality of longitudinally spaced fastener receiving means formed on said rear wall means.

4. An elongated key strip for use with a paving side form, including vertical rear wall means which abut one side of said side form, a pair of top and bottom walls tapering forwardly and toward one another from said rear wall means and merging into a front wall having its intermediate portion curved rearwardly so as to define a generally semi-circular paving dowel receivingrecess, the front portion of one of said forwardly tapering walls being formed with a plurality of longitudinally spaced apertures each of which are substantially vertically aligned with a second aperture formed in the front part of the adjacent rearwardly curved portion of said front wall, each of said pair of apertures receiving a paving dowel retaining-element insertible therein from the exterior of said key strip, and a plurality of longitudinally spaced fastener receiving means formed in said rear wall means.

5. In a paving form structure that includes a side form, the combination of an integral elongated key strip having vertical rear wall. means which abut one side of said side form, said rear wall means being formed with a plurality of longitudinally spaced fastener-receiving bores, a pair of top and bottom Walls tapering forwardly and toward one another from said rear wall means and merging into a front wall having its intermediate portion curved rearwardly so as to define a generally semi-circular paving dowel receiving-recess; a plurality of longitudinally spaced pairs of vertically aligned apertures formed in the front portion of said key strip for receiving a paving dowel retaining element extending through said apertures and over the front portion of said recess: and a plurality of fastener means, each horizontally insertible from the rear of said side form through a bore formed therein into one of said fastener-receiving bores so as to engage said rear wall means and temporarily positively lock said key strip against vertical and horizontal movement relative to said side form, and said fastener means being horizontally rearwardly disengageable from said bores whereby said side form may be lifted vertically relative to said key strip.

6. In a paving form structure that includes a side form, the combination of an integral elongated key strip having vertical rear wall means which abut one side ofsaid side form, said rear wall means being formed with a plurality of longitudinally spaced fastener-receiving bores, a pair of top and bottern walls tapering forwardly and toward one another from said rear wall means and merging into a front wall having its intermediate portion curved rearwardly so as to define a generally semi-circular paving dowel receiving-recess; paving dowel retaining means formed on the front portion of said key strip; and a plurality of fastener means, each horizontally insertible from the rear of said side form through a bore formed therein into one of said fastener-receiving bores 50 as to engage said rear wall means and temporarily positively lock said key strip against vertical and horizontal movement relative to said side form, and said fastener means being horizontally rearwardly disengageable from said bores whereby said side form may be lifted vertically relative to said key strip.

References Cited in the file of this patent UNITED STATES PATENTS Hedrick July 21, Hemptstead Apr. 29, Miller July 14, White Apr. 25, Heltzel Feb. 20, Robertson Apr. 24, Dill Jan. 8, Bean Oct. 31, McGrath Sr. et a1. Oct. 8, Bean Nov. 29, Stewart Nov. 18, Salisbury Jan. 17,

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902742A (en) * 1954-07-26 1959-09-08 Matich Brothers Side form for concrete pavement
US2921354A (en) * 1956-03-12 1960-01-19 William O W Pankey Apparatus for making precast concrete bridges or the like
US3166815A (en) * 1963-01-29 1965-01-26 James A Rappas Keyway strip for concrete pavement forms
US3186676A (en) * 1963-03-04 1965-06-01 Acme Highway Prod Keyway-forming member for use on highway forms
US4121804A (en) * 1977-07-15 1978-10-24 Leary Thomas J O Adjustable concrete form
US4193573A (en) * 1978-07-25 1980-03-18 Kinnucan Walter F Jr Clip-and-sleeve arrangement for use with paving form and tie bar
DE3013710A1 (en) * 1979-05-01 1980-11-13 Witschi H Means for creating a connection to a wall to be concreted
EP0039661A2 (en) * 1980-05-01 1981-11-11 Heinz Witschi Utilization of expanded metal as lost shuttering
US5117583A (en) * 1990-07-25 1992-06-02 Reum Mark T Landscape terracing material
US5332191A (en) * 1992-10-26 1994-07-26 Nolan Terry L Apparatus for making concrete slabs
WO1999013160A1 (en) * 1997-09-05 1999-03-18 Shartzer Michael E Jr Flexible concrete form
US20040200939A1 (en) * 2003-04-14 2004-10-14 Morse Matthew R. Concrete foundation form system
US20050061948A1 (en) * 2002-01-08 2005-03-24 Brennan James Andrew Method and apparatus for forming construction panels and structures
US20060082024A1 (en) * 2002-07-08 2006-04-20 Jan-Erik Nilsskog Denticulation of concrete joints
US20070131840A1 (en) * 2005-12-13 2007-06-14 Jones Kurtis D Integral form panel for concrete form system
US20080083130A1 (en) * 2006-10-09 2008-04-10 Nigel Parkes Template for Positioning Pocket Former
US20090116906A1 (en) * 2007-11-01 2009-05-07 Kaylor Brent M Methods and apparatus for sidewalk tiles
US20090309007A1 (en) * 2008-06-12 2009-12-17 Hazelwood Anthony J Concrete form anchor device, system and method for forming trenches
EP2765258A3 (en) * 2013-02-12 2015-01-14 Pino Albanese Method for creating a concrete formwork and a stop end and formwork element used for the method
US10077551B2 (en) 2015-10-05 2018-09-18 Illinois Tool Works Inc. Joint edge assembly and method for forming joint in offset position
US10119281B2 (en) 2016-05-09 2018-11-06 Illinois Tool Works Inc. Joint edge assembly and formwork for forming a joint, and method for forming a joint

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1547036A (en) * 1925-02-19 1925-07-21 Burl V Hedrick Concrete-curb form
US1756514A (en) * 1928-10-31 1930-04-29 William B Wharton Clamp for positioning metallic curb edging
US1814521A (en) * 1929-02-20 1931-07-14 Metal Forms Corp Stake box
US1905023A (en) * 1930-05-26 1933-04-25 Kalman Steel Co Road strip and support
US1948213A (en) * 1929-07-26 1934-02-20 John N Heltzel Road form
US1956046A (en) * 1931-12-16 1934-04-24 Edward A Robertson Road form for road widening
US1987392A (en) * 1929-08-01 1935-01-08 Charles H Dill Road construction
US2178386A (en) * 1937-11-22 1939-10-31 Bean Clinton Dowel retainer
US2408989A (en) * 1945-04-11 1946-10-08 Sr Robert A Mcgrath Dowel bar protector
US2489851A (en) * 1946-04-27 1949-11-29 Bean Clinton Dowel retainer for use with concrete pavement forms
US2618038A (en) * 1951-11-17 1952-11-18 Stanley Ball Paving dowel supporting structure
US2730784A (en) * 1953-08-31 1956-01-17 P B A Company Paving dowel supporting construction

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1547036A (en) * 1925-02-19 1925-07-21 Burl V Hedrick Concrete-curb form
US1756514A (en) * 1928-10-31 1930-04-29 William B Wharton Clamp for positioning metallic curb edging
US1814521A (en) * 1929-02-20 1931-07-14 Metal Forms Corp Stake box
US1948213A (en) * 1929-07-26 1934-02-20 John N Heltzel Road form
US1987392A (en) * 1929-08-01 1935-01-08 Charles H Dill Road construction
US1905023A (en) * 1930-05-26 1933-04-25 Kalman Steel Co Road strip and support
US1956046A (en) * 1931-12-16 1934-04-24 Edward A Robertson Road form for road widening
US2178386A (en) * 1937-11-22 1939-10-31 Bean Clinton Dowel retainer
US2408989A (en) * 1945-04-11 1946-10-08 Sr Robert A Mcgrath Dowel bar protector
US2489851A (en) * 1946-04-27 1949-11-29 Bean Clinton Dowel retainer for use with concrete pavement forms
US2618038A (en) * 1951-11-17 1952-11-18 Stanley Ball Paving dowel supporting structure
US2730784A (en) * 1953-08-31 1956-01-17 P B A Company Paving dowel supporting construction

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902742A (en) * 1954-07-26 1959-09-08 Matich Brothers Side form for concrete pavement
US2921354A (en) * 1956-03-12 1960-01-19 William O W Pankey Apparatus for making precast concrete bridges or the like
US3166815A (en) * 1963-01-29 1965-01-26 James A Rappas Keyway strip for concrete pavement forms
US3186676A (en) * 1963-03-04 1965-06-01 Acme Highway Prod Keyway-forming member for use on highway forms
US4121804A (en) * 1977-07-15 1978-10-24 Leary Thomas J O Adjustable concrete form
US4193573A (en) * 1978-07-25 1980-03-18 Kinnucan Walter F Jr Clip-and-sleeve arrangement for use with paving form and tie bar
DE3013710A1 (en) * 1979-05-01 1980-11-13 Witschi H Means for creating a connection to a wall to be concreted
EP0039661A2 (en) * 1980-05-01 1981-11-11 Heinz Witschi Utilization of expanded metal as lost shuttering
EP0039661A3 (en) * 1980-05-01 1982-01-13 Heinz Witschi Utilization of expanded metal as lost shuttering
US5117583A (en) * 1990-07-25 1992-06-02 Reum Mark T Landscape terracing material
US5332191A (en) * 1992-10-26 1994-07-26 Nolan Terry L Apparatus for making concrete slabs
WO1999013160A1 (en) * 1997-09-05 1999-03-18 Shartzer Michael E Jr Flexible concrete form
US6021994A (en) * 1997-09-05 2000-02-08 Shartzer, Jr.; Michael E. Flexible concrete form
US20050061948A1 (en) * 2002-01-08 2005-03-24 Brennan James Andrew Method and apparatus for forming construction panels and structures
US20060082024A1 (en) * 2002-07-08 2006-04-20 Jan-Erik Nilsskog Denticulation of concrete joints
US20040200939A1 (en) * 2003-04-14 2004-10-14 Morse Matthew R. Concrete foundation form system
US20070131840A1 (en) * 2005-12-13 2007-06-14 Jones Kurtis D Integral form panel for concrete form system
US20080083130A1 (en) * 2006-10-09 2008-04-10 Nigel Parkes Template for Positioning Pocket Former
US8303210B2 (en) * 2006-10-09 2012-11-06 Nigel Parkes Method for constructing adjacent cast in place concrete slabs using a template for positioning pocket formers
US20090116906A1 (en) * 2007-11-01 2009-05-07 Kaylor Brent M Methods and apparatus for sidewalk tiles
US20090309007A1 (en) * 2008-06-12 2009-12-17 Hazelwood Anthony J Concrete form anchor device, system and method for forming trenches
EP2765258A3 (en) * 2013-02-12 2015-01-14 Pino Albanese Method for creating a concrete formwork and a stop end and formwork element used for the method
US10077551B2 (en) 2015-10-05 2018-09-18 Illinois Tool Works Inc. Joint edge assembly and method for forming joint in offset position
US10385567B2 (en) 2015-10-05 2019-08-20 Illinois Tool Works Inc. Joint edge assembly and method for forming joint in offset position
US10119281B2 (en) 2016-05-09 2018-11-06 Illinois Tool Works Inc. Joint edge assembly and formwork for forming a joint, and method for forming a joint

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