US3317173A

US3317173A - Shore adapter

Info

Publication number: US3317173A
Application number: US458571A
Authority: US
Inventors: Walter D Williams
Original assignee: Symons Manufacturing Co
Current assignee: General Electric Co
Priority date: 1965-05-25
Filing date: 1965-05-25
Publication date: 1967-05-02
Anticipated expiration: 1984-05-02

Description

May 2, 1967 w; D. WILLIAMS SHORE ADAPTER Filed May 25, 1965 /NVEN7'OR WALTER D. W/LLl/M/S ,4 7- TORNEY sill.

United States Patent D 1 re 6 Filed May 25, 1965, Ser. No. 458,571

2 Claims. (Cl. 248-351) The present invention relates generally to builders hardware and has particular reference to a novel adapter by means of which a tubular steel shore section of relatively short length may be attached to the upper end of a wooden base section of appreciablelength, thus reducing the amount of steel that is requ1red to produce an over-all shore for supporting a concrete floor slab form or other unit. The shore adapter of the present inventlon is also capable of use by itself as a substantially complete shore support in an installation Where a relatively short shore would otherwise be required.

The shore adapter of the present inventlon will be found particularly useful in Canada and certa n sections of the United States of America where lurnber 1S plentiful and cheap. Where a particular building installation calls for a concrete floor slab form to be spaced upwardly from the base sill a distance of ten feet, for example, a tubular steel shore, regardless of whether it is of one- -piece construction, would be relatively costly, to say nothing of the labor that is involved in transporting the shore to the scene of installation and there erecting 1t.

The present invention makes possible the use of a shore assembly in which the lowermost or base section is comprised of an ordinary 4" x 4" wooden post and comprises the major portion of the height of the shore assembly,

the remainder of the shore assembly being comprised of the present adapter and an extremely short steel top shore section having facilities for connecting it to the overhead form beam to be supported. The adapter facilitates quick and easy connection of the upper end of the wooden post to the lower end of the short steel top shore section.

In the erection of a concrete structure such as a quonset hut, a temporary dormitory or other building which has no basement, the floor slab for such building 1S usually maintained elevated from the ground a short distance, for example, two or three feet. In the erection of the concrete floor slab form for such a structure, the present adapter will find use in combination with a short steel shore section as a complete shore for supporting the necessary concrete floor slab form directly from a ground The provision of a shore adapter which will accommodate both of the above-described types of installations and in either event serves as a constituent part of a shore, constitutes the principal object of the present invention.

A further object of the invention is to provide a shore adapter which embodies a novel arrangement of parts, effectivelyand efficiently fulfills its intended purpose, occupies but a small amount of space, and may be produced at a reasonable cost.

Other objects and the various advantages and characteristics of the invention will become readily apparent as the nature of the invention is better understood.

In the accompanying single sheet of drawings forming a part of this specification, one illustrative form of shore adapter embodying the invention is shown and incorporated in two exemplary environments.

In these drawings:

FIG. 1 is a perspective view of a shore adapter constructed according to the principles of the present invention, the adapter being shown operatively installed in a ihore assembly for supporting a high concrete floor slab orm;

FIG. 2 is a sectional view taken substantially along the vertical plane indicated by the line 2-2 of FIG. 1 and in the direction of the arrows; and

FIG. 3 is a perspective view of the shore adapter showing the same operatively applied to a ground sill in connection with the supporting of a low concrete floor slab form.

Referring now to the drawings in detail and in particular to FIGS. 1 and 2, a shore adapter constructed according to the present invention is designated in its entirety by the reference numeral 10 and is shown or illustrated as constituting a constituent part of a complete shore assembly 12 for supporting a horizontal beam or stringer 14 forming a part of a high concrete floor slab form (not shown). It will be understood that the beam 14 serves, in combination with other beams, to support thereon a series of horizontally disposed form panels (also not shown) having coplanar panel facings upon which wet concrete is adapted to be poured to provide a floor slab upon setting of the concrete. The shore assembly 12 is supported upon the usual ground-supported or floor-supported sill 16.

Ordinarily, in the erection of a high concrete floor slab form such as the form of which the horizontal beam 14 constitutes a part, an all-steel shore, adjustable or otherwise, extends between the sill 16 and the beam 14, appropriate hardware being employed for attachment of the shore to the beam. The shore adapter 10 of the present invention has been designed in the interests of economy for the purpose of enabling a major portion of the shore assembly 12 to be comprised of wood, the wooden portion being in the form of a vertically elongated post of the ordinary 4" x 4" variety, such a post being designated by the reference numeral 20.

Still referring to FIGS. 1 and 2, the shore adapter 10 is in the form of a composite steel unit including a tubular body section 22 which is of square horizontal cross sec tion and has paired

opposed side walls

24 and 26. A flat square cap section 28 closes the upper end of the body section and has downturned marginal flanges 30 which are welded as at 32 to the upper marginal portions of the various side walls of the body section. The lower end of the body section 22 is open. The internal transverse dimension of the tubular body section 22 in either direction is slightly in excess of four inches to permit the body section to be telescopically received over the upper end of the post 20 to such extent that the upper end surface of the post abuts against the underneath or bottom face of the cap section 28. Nail holes 34- are formed in the opposed side walls 26 for reception therethrough of the shank portions of double-headed nails 36, the nails being driven into the post 20 in order fixedly to secure the adapter 10' and its post 20 together. L-shaped attachment feet 40 have their vertical flanges 42 welded as at 44 to the opposed side walls 24 of the tubular body section 22 and have their horizontal flanges 48 projecting laterally from the lower region of the tubular body section 22 in substantially coplanar relationship with the lower open rim thereof. Nail holes 50 are formed in the lateral or horizontal flanges 48 and are designed for reception therethrough of double-headed nails 52 as shown in FIG. 3 in order that the adapter may be fixedly secured to a sill when the adapter 10 is employed as a base support, all in a manner that will be described subsequently.

The upper face of the cap section 28 has welded thereto as at 54 the lower rim of an upstanding tubular cylindrical retaining sleeve 56. One side of the sleeve is formed with a pin-receiving hole 58 and the other side is formed with a bolt-receiving hole 6t which is diametricaly aligned with the hole 58. A nut 62 is welded as at 64 to said other side of the sleeve 56 in alignment or register with the hole 60. A locking bolt 65 is adapted to be threadedly received through the nut 62 and to enter the hole 60 for clamping purposes, as will be described presently. A conventional fast pin 70 is adapted to be projected through the hole 58 and serves a function that likewise will be described subsequently. The fast pin '70 is connected by a chain 72 to the shore adapter so that it is not likely to become misplaced. Accordingly, a T-bar '74 is secured to the end of the chain that is remote from the pin, and is adapted to be passed inwardly of the sleeve 56 through a hole 76 in the sleeve. Once inserted into the sleeve, the T-bar can be removed only endwise through the hole 76.

The sleeve 56 of the shore adapter 19 is adapted to support a vertically extending, relatively short tubular steel shore section 80 in centered relationship. The shore section 80 is provided with a reduced pilot portion 82 at its lower end, this pilot portion fitting snugly within the sleeve 56 in telescopic relationship and with the upper rim of the sleeve 56 bearing upwardly against the downwardly facing annular shoulder 84 which exists by reason of the reduced pilot portion. The upper end of the tubular shore section has welded thereto as at 85 a tray-like support 88 having upturned side flanges 90. The latter are provided with nail holes 92 for reception therethrough of double-headed nails 94 by means of which the tray may be secured to the beam 14 in supporting relationship. Y

The lower region of the pilot portion 82 of the tubular steel shore section Si) is formed with a hole 96 which is designed for registry with the hole 58 when the shoulder 84 is seated on the upper rim of the retaining sleeve 56 to the end that the fast pin '70 may be projected through both holes, thus securing the shore section 80 to the shore adapter 10. Where the connection between the shore section 80 and adapter 10 does not necessarily have to be a tight one, the bolt 66 may be omitted. However, where a tight connection is desired, the bolt 66 may be threaded through the nut 62 and its inner end caused to engage the adjacent side of the reduced pilot portion 82, thus securely clamping the shore section in position on the adapter 10.

Where a low concrete slab form is concerned, the shore adapter 1% of the present invention is useable as a base support for one of the short tubular steel shore sections 8%, the adapter and the shore section constituting an entire shore assembly and the use of a wooden post section being dispensed with. In FIG. 3, the adapter 10 is shown as being operatively installed directly upon a ground si-ll 100 by means of the nails 52 which are driven downwardly into the sill through the holes 50 in the horizontal flanges 48 of the attachment feet 40. The adapter is shown in a position wherein it is ready to receive thereon shore section like the shore section 80. When the aforementioned shore section is in place, the tray-like support at the upper end of the shore section will then assume the desired elevation to support one of the beams 14 of the associated concrete slab form.

It will be understood that in connection with either the installation of FIG. 1 or the installation of FIG. 3, the desired concrete floor slab form elevation may be attained b-y the use of adjustable tubular steel shore sections 8% or tubular steel shore sections of varying length. In the case of the installation of FIG. 1, an additional factor which may be employed to vary the over-all height of the shore assembly is the length of the wooden post 20.

The invention is not to be limited to the exact arrangement of parts shown in the accompanying drawings or described in this specification as various changes in the details of construction may be resorted to without departing from the spirit or scope of the invention. Therefore, only insofar as the invention has particularly been pointed out in the accompanying claims is the same to be limited.

Having thus described the invention what I claim as new and desire to secure by Letters Patent is:

1. A steel shore adapter capable of alternatively establishing a supporting thrust connection between either the upper end of a vertical wooden shore post having a square cross section or a horizontal foundation sill and the lower end of a tubular cylindrical steel shore section, the lower region of said shore section being formed with a reduced pilot section establishing a downwardly facing shoulder, said adapter comprising an inverted cup-shaped body including a square top wall and four depending side walls, said body being adapted for telescopic reception over said upper end of the post, certain of said side walls being formed with nail holes therein for reception therethrough of nails by means of which the body may be nailed in position on the post, and a cylindrical tubular retaining sleeve having its lower rim welded in centered relationship to said top wall, projecting vertically upwardly therefrom, and designed for telescopic reception therein of said reduced pilot section of the steel shore section so that said shoulder seats upon the upper rim of the sleeve, said retaining sleeve being formed with a bolt-receiving hole therein, a nut welded to said retaining sleeve exteriorly thereof and in register with said boltreceiving hole, a bolt threaded ly received by said nut and adapted upon turning thereof ina tightening direction to be projected through said bolt-receiving hole and into clamping engagement with said pilot section when the latter is received within the retaining sleeve, and a pair of attachment feet in the form of anglepieces welded to two of the opposed side walls of said body and presenting horizontal nailing flanges which project outwardly laterally from said body and lie in the horizontal plane of the lower rim of the body, said nailing flanges each being provided with nail holes therein by means of which the body may be secured to said horizontal foundation sill.

2. A steel shore adapter as set forth in claim 1, wherein said retaining sleeve is provided with a pair of holes therein, the adapter further including a separate chain and fast pin assembly, said assembly including a fast pin and a chain having one end attached to the fast pin, and a T-bar attached to the other end of the chain, one of said holes in the retaining sleeve being designed for passage of the fast pin thereinto in locking relationship with respect to the shore section, and the other hole being adapted for reception of the T-bar therethrough to capture the chain and fast pin assembly with respect to the r shore adapter.

References Cited by the Examiner UNITED STATES PATENTS 147,373 1/1904 Germany.

CI-IANCELLOR E. HARRIS, Primary Examiner. CLAUDE A. LE ROY, Examiner. I. F. FOSS, Assistant Examiner.

Claims

1. A STEEL SHORE ADAPTER CAPABLE OF ALTERNATIVELY ESTABLISHING A SUPPORTING THRUST CONNECTION BETWEEN EITHER THE UPPER END OF A VERTICAL WOODEN SHORE POST HAVING A SQUARE CROSS SECTION OR A HORIZONTAL FOUNDATION SILL AND THE LOWER END OF A TUBULAR CYLINDRICAL STEEL SHORE SECTION, THE LOWER REGION OF SAID SHORE SECTION BEING FORMED WITH A REDUCED PILOT SECTION ESTABLISHING A DOWNWARDLY FACING SHOULDER, SAID ADAPTER COMPRISING AN INVERTED CUP-SHAPED BODY INCLUDING A SQUARE TOP WALL AND FOUR DEPENDING SIDE WALLS, SAID BODY BEING ADAPTED FOR TELESCOPIC RECEPTION OVER SAID UPPER END OF THE POST, CERTAIN OF SAID SIDE WALLS BEING FORMED WITH NAIL HOLES THEREIN FOR RECEPTION THERETHROUGH OF NAILS BY MEANS OF WHICH THE BODY MAY BE NAILED IN POSITION ON THE POST, AND A CYLINDRICAL TUBULAR RETAINING SLEEVE HAVING ITS LOWER RIM WELDED IN CENTERED RELATIONSHIP TO SAID TOP WALL, PROJECTING VERTICALLY UPWARDLY THEREFROM, AND DESIGNED FOR TELESCOPIC RECEPTION THEREIN OF SAID REDUCED PILOT SECTION OF THE STEEL SHORE SECTION SO THAT SAID SHOULDER SEATS UPON THE UPPER RIM OF THE SLEEVE, SAID RETAINING SLEEVE BEING FORMED WITH A BOLT-RECEIVING HOLE THEREIN, A NUT WELDED TO SAID RETAINING SLEEVE EXTERIORLY THEREOF AND IN REGISTER WITH SAID BOLTRECEIVING HOLE, A BOLT THREADEDLY RECEIVED BY SAID NUT AND ADAPTED UPON TURNING THEREOF IN A TIGHTENING DIRECTION TO BE PROJECTED THROUGH SAID BOLT-RECEIVING HOLE AND INTO CLAMPING ENGAGEMENT WITH SAID PILOT SECTION WHEN THE LATTER IS RECEIVED WITHIN THE RETAINING SLEEVE, AND A PAIR OF ATTACHMENT FEET IN THE FORM OF ANGLEPIECES WELDED TO TWO OF THE OPPOSED SIDE WALLS OF SAID BODY AND PRESENTING HORIZONTAL NAILING FLANGES WHICH PROJECT OUTWARDLY LATERALLY FROM SAID BODY AND LIE IN THE HORIZONTAL PLANE OF THE LOWER RIM OF THE BODY, SAID NAILING FLANGES EACH BEING PROVIDED WITH NAIL HOLES THEREIN BY MEANS OF WHICH THE BODY MAY BE SECURED TO SAID HORIZONTAL FOUNDATION SILL.