US2489604A - Device for forming concrete steps - Google Patents

Description

NOV. "29, 1949 -w s 2,489,604

DEVICE FOR FORMING CONCRETE STEPS Filed Oct. 4, 1946 INVEN TOR.

find/2w M Woods Patented Nov. 29, 1949 UNITED STATES PATENT OFFICE DEVICE FOR FORMING CONCRETE STEPS Andrew M. Woods, Lansing, Mich.

Application October 4, 1946, Serial No. 701,159

1 Claim. 1

This invention relates to concrete step construction and is particularly concerned with a metal structure for accomplishing the same, and is most particularly concerned with the product so obtained.

An object of this invention is the provision of a metal structure whereby concrete steps may be produced. A further object of this invention is the provision of a metal structure by the use of which concrete steps of any width, or height may be constructed. It is still a further object of this invention to provide a metal structure whereby concrete steps may be constructed economically and at a relatively low labor cost.

I have now discovered and invented a metal structure which will be hereinafter described and am able to accomplish the objects set forth, as well as other objects which will present themselves upon disclosure of my invention.

Referring to the drawings:

Fig. 1 is a perspective view of the metal form, or structure.

Fig. 2 is a vertical end section taken along any line of Fig. 1.

Fig. 3 is a section of the tread.

Fig. 4 is a section of the tread and riser.

Fig. 5 is a section of the tread, riser, and support.

Referring to Figs. 1 and 2, the lower frame I is welded to the base 2. The upper base 4 is welded to the upper frame 3. The said frame 3 and base 4 are supported by uprights 5, 6, l, and 8. The bases 2 and 4, have angle irons 9, l0, and H welded thereto. The said angle irons have holes therein to serve in adjusting the end pieces I3 by means of the plurality of holes I2. Channel irons M are welded to the end pieces I 3, forming a slidable unit which controls the width of the steps. An angle iron I5 is wedged into a slot provided in the end piece I3 by means of a wedge pin H5. The said angle iron I5 provides means for controlling the thickness of the riser l1. Fig. 5 shows the first or bottom step to which a support I9 is cast. The casting of the said support 19 is accomplished by providing a gate 2| to the well 20, which gate may be dropped down when the bolt in the rod 22 is removed. The said bottom step, after casting and setting, may then be readily removed. A slidable end gate 23 is provided to prevent the concrete from running out at the end of well 20. The angle pieces 24 are welded to the upper and lower frames, and act as guides for the slidable portion of the form. The step is formed by pouring the concrete to the proper thickness and further trowelling the said concrete to form a smooth top surface. The angle iron I5 is removable.

I want particularly to point out that the well 20 shown in Fig. 2 can be used for the production of supports of narrower Width, when it is so desired. To produce a support of a narrower width an oblong wooden block of the proper size is placed into the bottom of the said well. I also want particularly to point out that the Well may be entirely closed by placing therein a wooden block having substantially the same dimensions as the said well, and thus allowing the formation of a step having a riser but no support, similar to that shown in Fig. 4.

The height of the riser on the step of my invention may be made narrower merely by adding concrete to the desired height. The width of the tread may be varied by adjusting the forms by means of a bolt to the angle irons provided for that purpose.

I claim:

A metal structure for the production of concrete steps comprising a lower frame, a base, a pair of slidable lower forms, the said lower forms having means for adjusting the width thereof, one of the said lower forms having extending downwardly therefrom a well for casting a support onto the said concrete step, said Well having a hinged gate, a plurality of uprights substantially fastened at their base to the lower frame, and. a pair of slidable upper forms substantially fastened to a frame supported by the said upright, the said upper forms having means for adjusting the width thereof.

ANDREW M. WOODS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 863,760 Schachner Aug. 20, 1907 875,113 Schachner Dec. 31, 1907 935,483 Galassi Sept. 28, 1909 1,012,735 Smock Dec. 26, 1911 1,555,750 ODonnell Sept. 29, 1925 1,792,549 Y Peters Feb. 17, 1931 1,944,257 Miller Jan. 23, 1934 1,953,434 Saffert Apr. 3, 1934 1,963,866 Peterson June 19, 193 2,155,908 Samonds Apr. 25, 1939 2,180,842 Winding Nov. 21, 1939 FOREIGN PATENTS Number Country Date 316,849 Germany Nov. 6, 1915

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