US1644588A - Concrete form - Google Patents

Description

Patented ct. 4, 1927.

Unire 'raar orrics.

JOHN N. HELTZEL, OF WARREN, OHIO.

CONCRETE FORM.

Application filed` August 6, 1926. Serial No. 127,596.

The present invention relates toconcrelte forms, and aids to provide improvements in forms used for molding curbs, curbs andy device is practical and efficient in use, and

the parts thereof readily assembled and separated.

Another object is the provision of a novel connection between the adjacent ends of alining form members, plates or rails, permitting the form to be built to any length desired with the form members or plates connected or assembled end to end. r

A further object is the provision of form members or plates disposed end to end in combination with yokes or arches at the adjacent ends thereof, and novel means for assembling said members or plates and yokes or arches, for holding the parts in place when assembled and permitting convenient separation of the parts.

Another object of the invention is the provision of novel means for accommodating a. division plate.

lVith the foregoing and other objects in view, which will be apparent Vas the description proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompaning drawings, wherein- Figure 1 is a perspective View of a concrete curb form embodying the improvements.

Fig. 2 is a horizontal section on the line 2-2 of Fig. 1.

. Fig. 3 is a sectional detail on the line 3 3 of Fig. 1.

Fig. 4 is a sectional detail illustrating a modification.

Fig. 5 is a transverse vertical section of a wall form embodying the improvements.

n The form shown in Figs. 1 and 2 is intended especially for moulding curbs, although it may be made of wider construction for moulding sidewalks, pavements, land the like. The rails or form members 14 are disposed end to end, to build the form'to any .desired length, and are bent from suitable sheet metal. Said rails constitute the side walls or plates of the form, and have upper and lower outstanding flanges 15.

Between each of the adjacent ends of the rails or form members at the opposite sides is disposed a yoke or arch 16 which has the limbs 17 of channel-shape Aor U-shaped cross section withtheir flanges or edges projecting inwardly toward the opening of the yoke or arch, and the upper or crown portion of the yoke or arch'is slotted, as at18,'in order that a division plate 19 `may be slid'vertically into and out of the yoke between thefopposite side portions thereof, with the edges of the division plate between the langes of the limbs 17, as seen in Fig. 2. The division plate 19 preferably projects above the yoke and has arslot 20 providing a hand hold for conveniently sliding the Vdivision plate into and out of the yoke.

The rails or fornrmembers and yoke are assembled in such a manner as to hold the form erect when the parts ar-evassembled and enabling the parts `to be readily separated. Thus, the rails or plates 14 have outstanding flanges 21 at their ends, which may be the flanges of angle irons secured to the webs of the rails 14. Said fianges 21 abut the flanges of the limbs 17 of the yoke, whereby the ends of the rails firmly abut the yoke or arch. Latches or dowels 22 are slidable in guides 28 secured to the rails or plates 14 and are adapted to be inserted or projected into apertures l24 with which the flanges 21 and the flanges of the limbs 17 are provided, thereby holding the rails and yoke assembled against transverse or vertical displacement. If desired, the latches or dowels 22 need not be employed at both sides of the yoke, inasmuch as the latches or dowels at one side of the yoke may be sufficiently long to project through the yoke and both flanges 21 of the alining rails at the opposite sides of the form'. |Thus, referring to Fig. 2, either the latches at the right or the left of the yoke 16 may be eliminated, butI by using the latches at both ends of the rails or form plates said rails or plates may be reversed. y

The parts are readily assembled, as Will be apparent from the foregoing, and it is also an easy matter to remove one of the rails or plates. Thus, by retracting the dowels or ylatches 22 of the rail that is to be removed,Vr

the rail may be readily moved transversely from between the yokes or arches between which it is disposed, thereby exposing the corresponding side of the curb in order that same may be finished by hand. The upper portions of the yokes 16 are spaced above the rails or plates 14 in orderthat the upper surface of the curb may be readily finished under the upper portion of the yoke, after the division plate 19 has been withdrawn.

As shown in Figs. 1 and 3, the flanges 21 of the rails and limbs 17 of the yoke may have apertures 26 through which bolts 25 or other securing elementsmay be'engaged for clampingfthe rail ends and yoke together, so as to prevent longitudinal separat-ion ot the parts. Y

`Fig. 4 illustrates a slight modification in that the flanges of the limb 17 a ofthe yoke 16a are spaced apart farther than as shown in Figs. 2 and 3, and the terminals of the rails or plates 14a project bevond the flanges 21 across the edges of the limb ot the yoke to abut the division plate 19.y

Fig. 5 illustrates thedevice constructed as a wall form, the yoke or arch 1Gb being of greater height, and a number of rails or form members 14b being superposed. The rails or plates 14:" have end flanges 21 to abut the yoke, the same as shown in Figs. 1 and 2, and the rails also have the latches or dowels 2Q to engage the yoke. The construction is substantially the same as shown in Figs. 1 and 2, excepting that there are any suitable number of rails disposed one on the other, and the division plate 19 need not be used,rexc'epting When desired to form the end of a wall.

Having thus described the invention, what is claimed as new is :--l

1. A yoke for ar Aconcrete form `having channel-shaped limbs adapted to receive a division plate therein.

2. A, yoke for a concrete form having channel-shaped limbs and a slotted upper portion adapted to receive a division plate therein.

3. A yoke for a concrete form having limbs of channel shape Vwith their Hanges projecting inwardly, and having a slotted upper portion, in combination with a division plate slidable through said slotted portion and between the flanges-of the limbs.

Y t. A concrete `form comprising form mem-- bersdisposedend to end, a yoke at the adjacent ends thereof having channel-shaped limbs, means for holding said members. and yoke assembled.l and a. division plate slidable in said limbs of the yoke.

5. concrete form comprising 'forni meinbers disposed end to end, av yoke at the adjacent ends thereof having channel-shaped limbs, said members having flanges at their ends abutting the flanges of said limbs.y latches carried by said members and slidable through said flanges, and a division plate slidable in the yoke between the llanges of said limbs. y

In testimony whereof I hereunto affix my signature.

JOHN N. HELTZEL.

Images