US1097796A

US1097796A - Combined reinforce and mold-support for concrete structures.

Info

Publication number: US1097796A
Application number: US68842312A
Authority: US
Inventors: Henry Fuehrer
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-04-04
Filing date: 1912-04-04
Publication date: 1914-05-26
Anticipated expiration: 1931-05-26

Description

H. FUEHRER.

COMBINED REINFOROB AND MOLD SUPPORT FOR CONCRETE STRUCTURES.

APPLICATION FILED APR.4, 1912.

1,097,796. Patented May 26, 1914.

Z SHEETS-SHEET 1.

witmeooeo m ('1 Hoznup H. PUEHRER. COMBINED REINFORGE AND MOLD SUPPORT FOR CUNCRETE STRUCTURES.

APPLICATION FILED APR. 4, 1912 1,097,796. Patented May 2 1914.

2 SHEETSSHEET 2.

H nvy Fuehver UNITED STATES, PATENT onnrcu. f

HENRY. FUEHRER, or HAZLETON, PENNSYLVANIA.-

COMBINED REINFORGiE AND MOLD-SUPPORT FOR CONCRETE STRUCTURES.

Specification of Letters Patent.

To all whom it may concern Be it known thatl, HENRY FUEHRER, a citizen of the United States, residing at Hazleton, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Combined Reinforces and Mold-Supports for Concrete Structures; and I do'declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and. use the same.

This invention relates to a combined anchor or reinforce andmold support for concrete structures.

The object of the invention is to provide means for cheaply and strongly constructing concrete, or cement walls or foundationstomatically plumb the wall and which willremain in the wall and serve as a reinforcement thereby greatly strengthening the wall.

This invention also comprehends details of construction which, together with the features above specified, will be better understood by reference to the drawings, in which- Figure 1 represents a front elevation of a cement wall embodying this invention and in which some of the mold boards. have been removed showing the completed wall and others remaining in position awaiting the setting of the cement. Fig. 2 is a transverse vertical section on the line 22 of Fig.1. Fig. 3. is an enlarged detail of one of the anchors. Fig. 4 is a detail perspective view showing the crossing of the two elements forming the anchor and the method of their engagement. Fig. .5 is an end elevation of the anchor shown in Fig. 3.

Fig. 6 is an enlarged detail perspective view of'the foot of one of the anchors. Fig. 7 is an enlarged detail perspective view of the top grab or mold engaging member of the anchor. Fig. 8 is a detail perspective view invention a plurality of anchors such as are shown in Fig. 3, are employed for reinforcing the wall and for holding the molds or forms in operative position during the construction of the wall, (see Figs. 1 and 2). Each of these anchors 1 comprises two bars or

members

2 and 3 which detachably engage each other and are interchangeable, be mg each composed of softfsteel known as band iron. which is preferably about three-fourths of an inch wide byone-eighth Patented May-26,.1914. Application filed April 4, 1912. Serial No. 688,423.

of an inch thick. These

members

2 and 3 conform in size to the thickness of the wall or the depth of the boards with which they are to be used, and are each provided in one edge midway the-length thereof with a,

notch 4, the notch in one member being formed in its lower edge and that in the other member in its upper edge to adapt them to engage to form an interlocking connection as shown in Fig. 4. It will thus be obvious that this means of connection provides for the ready separation and connectionpfthe anchor bars to permit them to be interchanged when desired. One end,

of each of these bars is provided with a foot 5 adapted to engage the upper edge of one board of the mold and the lower edge of the board next above it, as shown clearly in Figs. 1 and 3. This foot 5 is formed by shearing, punching and bending one end of the bar to form depending prongs, or lugs 6 and 7 spaced a suitable distance to span the edge of a board and-its strengthening cleat to which the anchor is to be ap-' plied, or rather in connection with which it is to be used. The depending prong 7 at the terminal of the bar, is preferably formed by shearing the bar diagonally from one edge inward, as shown in Fig. 6, and is bent downwardly the larger portion of said terminal, being bent upwardly to form a stop or lug 8 for engaging the outer face of the lower edge of the board next above to hold said board against outward movement. The prong 6 is formed by striking out a tongue from said bar intermediately of the .Width thereof, which is bent downwardly to form said prong 6, and which leaves a weakened portion at the base of said prong for a purpose to be described. The body of the bar is bent at an angle at the base of said prong 6 to conform tothe measurements of the boards used informing the mold and of the wall. The other end of each

bar

2 and 3 is provided with a board engaging member herein termed the head and which is designed to engage the upper edge of the board at the opposite side of the mold or form from that engaged by the foot of said bar, and said board being disposed in a plane above that engaged by the foot of the bar.

The head 9 of each bar is formed by bending the terminal of the bar at the head end laterally in a plane at right angles to form a prong 11 for engaging the outer face of the upper edge of the board to which it is applied for holding said board against outward movement. Spaced inwardly from said prong 11 are two

prongs

12 and 13 extending in opposite directions and formed by striking out tongues from opposite edges of the bar and bending one inone direction and, the other in the other direction. The prong 12 extends in a plane parallel with the prong 11 and engages the inner face of the upper edge of the board engaged by the prong 11. The prong 13 is designed to engage the inner face of the lower edge of the board next above in the same side of the mold as is clearly shown in Figs. 1 and 3. These

bars

2 and 3 form when assembled an X-shaped anchor having laterally extending board engaging members at the terminals of the arms thereof, the feet of the two bars being arranged in transverse'alinement and the heads of said bars in transverse alinement, and the head of one bar 'alines with the foot of the other, the head and foot of each bar being arranged diagonally in relation to the mold and designed to engage boards at opposite sides of the mold and in different planes. In the use of this improved anchor and mold support a layer of concrete or cement is first laid in a concavity such as a ditch upon which the wall is to be erected. This layer is placed without forms and is accurately leveled. After it has sufliciently set or hardened the wall is erected thereon in which this anchor is employed, the necessary number of boards for forming the mold having been first obtained. These boards are preferably of hemlock and ofthe proper width and thickness being .provided with the usual cleats for preventing the boards from warping or splitting. Two boards are first stood on edge on the exact location for the wall to be built. Then the equalizing anchors herein described and shown are placed proper distances apart after bending back th prongs on the feet of the anchors, or if the concrete is not settbo hard they may be driven thereinto. A board as wide as the wall is to be thick is then placed between the boards set on edge and serves v to hold said vertical boards in properly spaced relation. This form or mold so constructed is then filled with cement or concrete and the next day or when said first mentioned course has become suit ably hardened, the mold for another course is laid by mounting the desired number of anchors on the upper edge of the boards of the mold of the first course, the feet of said anchors having their depending prongs fitted tightly over the board and its cleat, said anchors being set above and beside the anchors of. the course below. The feet of the anchors fit the boards sufficiently tight to hold said anchors in position ready to receive the boards for the next mold, which may be readily placed in position by lifting the head members of the anchors. After the boards are properly positioned the heads of the anchors are forced down over their upper edges with the

prongs

11 and 12 thereof engaging opposite faces of said boards.- The prong 11 of the head 'of one bar of each anchor and the prong 8 of the foot of the other bar of said anchor hold the board against being forced outward, and the prong 12 of the head of said anchor and the prong 13 of the anchor below prevent said board from .moving inward. The mold thus formed is then filled with cement which when hardened has another course built thereon in a similar manner, and so on until the desired height of the wall has been reached.

After the cement of the lower courses has hardened sufficiently the mold boards are removed and employed in forming the other 'molds for the succeeding courses.

These boards are removed by bending back the prongs 8- and 11 on the foot and head of the vertically alined anchor members.

After the boards have been removed the ends of the anchors project beyond the outer face of the wall and they are removed prefv erably by bending them back and forth by a pair of pliers, which causes them to break off at the points marked 14 in Fig. 2, these parts having been weakened by the slot which is formed instamping out .the prong 6 of the feet and'the

prongs

12 and 13 of the head, these weakened points being located inside the outer face of the wall. After the prongs have been broken off the recesses left thereby are cemented over, making practically a smooth surfaced wall and completely covering the anchors thus pre Venting rust stain on the surface of the well.

In Fig. 8 a modified form is shown in which an auxiliary reinforcement in the form of a locking bar or key 15 for the anchors is arranged vertically of the structure and passes under= onemember of one anchor and over the other member of the other anchor, as shown clearly in Fi 8, thereby forcing said members into 100 'ng engagement at their intersecting points and holding them in this position. This bar 15 in connection with the anchor forms a fork in which is disposed a longitudinally arranged auxiliary reinforcing bar or rod 16.

This rod 16 is supported by the fork formed as above described before the cement is placed in the mold and after the cement is poured and hardened, said rod is held therelfiy and serves as a horizontal reinforce there- I claim as my invention:

1. A mold support for concrete structures comprising detachably connected members, each having a head and a foot provided with mold engaging prongs, and an auxiliary member arranged to lock said members in engaged position. I

2. A moldsupport for concrete structures comprising members intersecting-each other and having mold board engaging elements extending at an angle from each end thereof, and interlocking notches intermediately points of intersection.

3. A mold support for concrete structures comprising two members crossing each other mtermediately of their ends and provided with interlocking notches at their points of intersection, said members having their free;

ends provided with mold board engaging elements, and a bar engaged with said members to lock them together.-

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HENRY FUEHRER. Witnesses MARTIN B.- GORMLEY, JOHN