US1135858A - Concrete-form. - Google Patents

Description

W. M. SMITH.

CONCRETE FORM.

APPLICATION FILED V1ULY25, 1914.

Patented. Apr. 13, 1915.

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THE NORRIS PETERS co, FHOTE-LITHKL, WASHINGTON. D v,

W. M. SMITH.

CONCRETE FORM.

. APPLICATION FILEI? JULY25, 1914. mwmmw Patented Apru13,.1915.

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THE NORRIS PETERS 60., PHOT0-LITHO.. WASHINGTON. D. C4

CONCRETE-FORM.

messes.

Specification of Letters Patent.

Patented Apr. 13,1915.

Application filed July 25, 1914. Serial No. 853,106.

To all whom it may concern:

Be it known that 1, WILLIAM M. SMITH, a citizen of the United States, residing at l/Voodward, in the county of Woodward and State of Oklahoma, have invented new and useful Improvements in Concrete-Forms, of which the following is a specification.

The invention relates to adjustable forms, and more particularly to the class of concrete forms.

The primary object of the invention is the provision of a form wherein the sections thereof are linked together so that the same may be adjusted relative to each other whereby the form can be used in building culverts, conduits, hollow tiles, cave tops, or the like.

Another object of the invention is the provision of a form of this character wherein the sections thereof are reinforced to strengthen the same and increase the rigidity thereof, yet the said sections can be readily adjusted relative to each other to give the proper formation to the structure in the course of construction, the sections being connected together in a novel manner.

A further object of the invention is the provision of a form of this character which is simple in construction, reliable and cilicient in use, and inexpensive in manufacture.

With these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings :Figure 1 is a perspective view of a form constructed in accordance with the invention, the same being disposed in arch formation. Fig. 2 is a similar view looking toward the inner face thereof. Fig. 3 is an end elevation of the form when adjusted in cylindrical formation. Fig. 4: is a vertical transverse sectional view through the form when in cylindrical shape. Fig. 5 is a vertical longitudinal sectional view thereof. Fig. 6 is a perspective view of the locking rod.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawing in detail, the form comprises a plurality of sections A, each being of arched formation and includes companion strips 10 and. 11 having in-turned flanges 12 abutting each other at the longer sides adjacent each other of the strips. The flanges 12 have passed therethrough rivets 13 for uniting the strips of each section.

Arranged at opposite ends of the sections A are pivotally connected links 1%, each being formed with a pair of ears 15 which are at right angles thereto, the ears being disposed against the inner faces of the sections and are connected thereto through the medium of rivets 16 which are passed through each ear and each strip of the respective sections so that the links will be permanently fixed thereto. The sections A when connected to the links 142 are disposed in overlapping relation to each other, and by reason of the pivotal connection of the said links the sections can be adjusted to form an arch or a cylinder so that the form can be used in building culverts, conduits, hollow or cylindrical tiles, cave tops, or the like, the form being readily adjustable for this purpose.

Provided in'the outermost links 14: of the respective series at each end of the sections A of the form are alining openings 17 in which is received a locking pin or rod 18 which is readily detachable therefrom, and this rod or pin when engaged in the open ings will fasten the form in cylindrical shape for the use thereof as a core in making hollow cylindrical tiles.

The flanges 12 reinforce the sections of the form to strengthen the same and give rigidity thereto. The pivotally connected links permit free flexibility of the form for changing the contour thereof for use in building different structures.

From the foregoing it is thought that the construction and manner of use of the device will be clearly understood, and therefore a more extended explanation has been omitted.

l/Vhat is claimed is 1. A. form of the class described comprising a plurality of arcuate shaped sections disposed in overlapping relation to each other, a plurality of pivotally connected links mounted at the ends of the sections, each section being formed from two strips, in-turned flanges formed on the respective strips and abutting each other, and rivets uniting the abutting flanges.

2. A form of the class described comprising a plurality of arcuate shaped sections disposed in overlapping relation to each other, a plurality of pivotally connected links mounted at the ends of the sections,

each section being formed from two strips, in-turneol flanges formed on the respective strips and abutting each other, rivets uniting the-abutting flanges, and ears formed on the respective links and riveted to the strips of each section.

3. A form of the class described comprising a plurality of arcuate shaped sections disposed in overlapping relation to each other, a plurality of pivotally connected links mounted at the ends of the sections, each section being formed from two strips,

in-turned flanges formed on the respective strips and abutting each other, rivets uniting the abutting flanges, ears formed on the respective links and riveted to the strips of each section, and means for detachably connecting the end links together to hold the sections in cylindrical contour.

In testimony whereof I afiix my signature in presence of tWo Witnesses.

WILLIAM M. SMITH. Witnesses:

EIBEN SHELLHART, DELTA ASHFORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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