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Publication numberUS3373571 A
Publication typeGrant
Publication dateMar 19, 1968
Filing dateJan 6, 1966
Priority dateJan 6, 1966
Publication numberUS 3373571 A, US 3373571A, US-A-3373571, US3373571 A, US3373571A
InventorsRecords William M
Original AssigneeEwing Records & Associates Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for handling steel forms in tunnels
US 3373571 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March 19, 1968 w. RECORDS 7 3,373,571

APPARATUS FOR HANDLING STEEL FORMS IN 'I'UNNELS Filed Jan. 6, 1966 2 Sheets$heet 1 INVENTOR W. M. RECORDS ATTORNEYS W. M. RECORDS March 19, 1968 APPARATUS FOR HANDLING STEEL FORMS IN TUNNELS Filed Jan. 6, 1966 2 Sheets-Sheet 2 5 mm m. R mm 0 mm M M w 0 w 4 4 United States Patent 3,373,571 APPARATUS FOR HANDLING STEEL FORMS IN TUNNELS William M. Records, San Antonio, Tex., assignor to Ewing-Records & Associates, Inc., Converse, Tex.,

a corporation of Texas Filed Jan. 6, 1966, Ser. No. 519,030 1 Claim. (Cl. 61-84) ABSTRACT 8F THE DISCLOSURE Concrete forms, particularly collapsible steel forms movable longitudinally upon rollers in tunnel construction.

Summary of the invention A system for moving and setting steel forms in a tunnel, utilizing minimum peripheral space and enabling longitudinal movement of the collapsed forms upon rollers. The system includes a vertically extending hanger suspended from the top of the tunnel and supporting a plurality of rollers upon which the collapsible forms are suspended and a stripping ratchet interconnecting the form elements so as to radially expand the elements for pouring of concrete and to radially inwardly collapse the forms for stripping. As the torms are collapsed they engage the roller assemblies and upon which they are moved longitudinally within the tunnel for resetting.

The present invention relates generally to the handling of steel forms in tunnels and particularly to an apparatus capable of moving and setting steel forms while utilizing minimum tunnel space.

Numerous inventors, such as Wolfe (Patent No. 1,292,- 203), ORourke (Patent No. 1,382,668), Jessen (Patent No. 2,547,946), Bossner (Patent No. 2,870,518), Card (Patent No. 3,022,562), Clark (Patent No. 3,075,359) and Cunningham (Patent No. 3,169,376), have addressed themselves to the problem of moving and setting steel forms in tunnels and aqueducts. conventionally, a carriage or traveler equipped with wheels which run on rails laid on invert or on finished concrete is used, which collapses the forms and moves them to their new position. The primary disadvantage of such wheeled carriage arrangements is the amount of room or space taken up In tunnel which, of course, is always at a premium. With the present invention, considerable room for the passage of men and material through the concrete forms remains.

Accordingly, it is an object of the present invention to permit the moving and setting of steel forms in tunnels with a construction characterized by its simplicity in construction.

Another object of the present invention is to permit the moving and setting of steel forms with a construction designed to minimize space requirements.

Still a further object of the present invention is to support steel forms during movement and setting from a simple roller assembly located at top of the tunnel thus permitting passage of men and material through the forms.

Still another object of the present invention is to provide forms with simple hinge construction allowing maximum space for passage of men and material while permitting concrete to be pumped into the tunnel forms at centerline.

Other objects will become apparent from the ensuing specification and attached drawings, wherein:

FIG. 1 is a section view illustrating the form in traveling position;

3,373,571 Patented Mar. 19, 1968 FIG. 2 is a section view illustrating the form in pouring position;

FIG. 3 is an enlarged section view illustrating details of the roller assembly and the form in collapsed position; and

FIG. 4 is section view illustrating details of the roller assembly and the form in concreting position.

As seen in FIG. 1, the present system consists of a plurality of hangers 10 which are fastened to supporting ring beams 12 within tunnel 14. Attached to the threaded lower portions 16 of hangers 10 with bolts 18 are roller assemblies 20. During movement, forms 22 are collapsed and fed onto rollers 20, their weight, importantly, being supported entirely by rollers 20.

While forms 22 are being concreted, as seen in FIG. 2, rollers 20 remain in place to form a finished portion of tunnel 14 thus supporting forms 22 in the finished section when they are being moved out.

Forms 22 each include a top hinge 24 located directly below rollers 20 and side hinges 26 and 28 enabling assembly of lower segments 30 and 32 of forms 22, engagement occuring along stripping joint 34 when assuming the pouring position of FIG. 2. Of course, stripping ratchet 36 enables extension of upper segments 38 and 40 of forms 22. As seen more clearly in FIGS. 1 and 3, hinge 24 is located in such position that when forms 22 are collapsed, a gap appears through which hanger rods 10 may pass. In some instances it may be necessary to have two hinges, in which case the broad technique will be similar, continuing to permit concrete to be pumped into tunnel forms 22 at centerline. Of course, the concreting operation may simply consist of holes drilled through the earth downward to the center of forms 22. Therefore, it is not necessary to offset hangers 10.

While FIG. 3 illustrates upper segment 40 of forms 22 in collapsed position, FIG. 4 shows upper segments 33 and 49 during concreting position. Note the angular disposition of flange 42 of leg 44 while forms 22 are in collapsed position, as contrasted to the horizontal position of flange 42 during assumption of concreting position. As further seen in FIG. 4, rubber sealing strips and 52 span openings between opposed flanges 42 and are held in place with plate clamps 54 and bolt assemblies 56 Manifestly, variation in design and arrangement of parts may be employed without departing from the spirit and scope of this invention as defined by the sub-joined claim.

I claim:

1. A system for moving and setting forms in a tunnel, comprising:

(A) hanger arrangement means attached to and suspended from portions of the top of said tunnel;

(B) roller assemblies mounted upon said hanger means; and

(C) collapsible forms assemblies, including:

(i) four segments held in rotating relationship with respect to each other about a first top hinge and second side hinges;

(ii) supporting means extending circumferentially towards each other from said first two segments about said first top hinge, such that a gap is defined in said forms through which said hanger arrangement means may pass and;

(D) a stripping ratchet interconnecting said first two segments, such as to radially expand said segments and close said gap above said rollers during poursuspended from said roller References Cited UNITED STATES PATENTS Reno 6184 Wolfe 2 5131.6 ORourke 61--84 X Ross 61-43 4 1,722,038 7/1929 Dougherty. 1,734,773 11/1929 Murray. 1,792,084 2/1931 Glasser 25131.6

FOREIGN PATENTS 949,495 2/1949 France.

DAVID J. WILLIAMOWSKY, Primary Examiner.


Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US466046 *May 21, 1891Dec 29, 1891 Method of and apparatus for constructing tunnels
US1292203 *Oct 10, 1916Jan 21, 1919Thomas L WolfeMolding apparatus for forming concrete structures.
US1382668 *Nov 8, 1919Jun 28, 1921O'rourke John FMeans for supporting tunnel-lining segments
US1642559 *Feb 26, 1923Sep 13, 1927Purdue UniversitySectional tunnel
US1722038 *Mar 17, 1927Jul 23, 1929Monolithic Form Device CompanyForm for use in constructing monolithic sewers and the like
US1734773 *Mar 5, 1928Nov 5, 1929Murray Scott ECollapsible steel form
US1792084 *Jun 9, 1926Feb 10, 1931Blaw Knox CoMethod of and apparatus for tunnel construction
FR949495A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3417538 *Feb 17, 1967Dec 24, 1968Calvin B. DeanKiln liner block supporting structure
US3885397 *Nov 23, 1973May 27, 1975Taiheiyo Coal Mining Co LtdMining shield-supporter
US3903707 *Mar 20, 1974Sep 9, 1975Gewerk Eisenhuette WestfaliaTunneling shields
US4010616 *Sep 23, 1975Mar 8, 1977Richard LovatRib expander
US4017052 *Nov 5, 1975Apr 12, 1977Giovanni AzzaroniTunnel like formwork
US4315701 *Dec 12, 1980Feb 16, 1982Ivanov Valentin AShuttering for erecting a concrete tunnel lining
US4379654 *Feb 19, 1981Apr 12, 1983Industrie Pirelli S.P.A.Device for keeping a lining-layer in contact with the walls of a civil-engineering works
DE2850990A1 *Nov 24, 1978Jul 12, 1979Sp Kt Bjuro GlavtonnelmetrostrSchalung fuer betonauskleidungen fuer tunnel
EP0024157A1 *Aug 4, 1980Feb 25, 1981Johnston Construction LimitedMethod of lining or relining tunnels and tunnels lined or relined by such a method
U.S. Classification405/150.1, 425/63
International ClassificationE21D11/40, E21D11/10
Cooperative ClassificationE21D11/102, E21D11/40
European ClassificationE21D11/40, E21D11/10B