US1574636A

US1574636A - Concrete form

Info

Publication number: US1574636A
Application number: US631621A
Authority: US
Inventors: Sutiter Harold Robert
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-04-12
Filing date: 1923-04-12
Publication date: 1926-02-23
Anticipated expiration: 1943-02-23

Description

; l l I V H. R M W26;

Feb. 23,1926. v 1, 4, 3 v

H. R. SUITER CONCRETE ,FORM

1 Filed April 12, 1923 2 Shasta-Sheet 1 M. A TTORNEYS Patented Feb. 23, 1926.

UNITED STATES HAROLD ROBERT SUITER, RED LOlJGE, MONTANA.

CONCRETE FORM.

Application filed April 12, 1923 Se-rial N0. 631,621.

To all whom it may concern:

Be it known that I, HAROLD ROBERT Surrnu, a citizen of the United States, and resident of Red Lodge, in the county of Carbon and State of Montana, have invented certain new and useful Improvements in Concrete Forms, of which the following is a specification.

This invention relates to concrete forms and is an improvement over the construction illustrated in my United States Patent #1,440,1s5.

Briefly stated an important object of this invention is to provide a form of the character specified having simple and reliable means whereby individual form boards may be securely held in position preparatory to pouring the concrete and to prevent the form board from bulging as a result of pressure exerted by the newly poured c0ncrete.

A further object of the invention is to provide a form for concrete construction having simple means whereby all the boards constituting the form or mold may be economically salvaged.

Also the invention forming the subject 'matter of this application aims to provide simple and easily installed means to connect the inner and outer spaced walls in such a manner that the wind pressure is borne partly by the outer wall and partly by the inner wall.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a fragmentary perspective of a form constructed'in accordance with this invention;

Figure 2 is a fragmentary plan view of a form, the same being filled with concrete.

Figure 3 is a fragmentary plan view illustrating the lowermost form boards in position, the tie members also being shown in their operative positions.

- Figure 4 is a detail vertical sectional view through the concrete form, the view illus trating the means for holding the form boards immediately above the lowermost boards in position preparatory to the insertion of. the holding rods.

Figure 5 isa detail horizontal sectional view through the intermediate portion of the form and the wall in process of construction, the view illustrating two opposed form boards in plan View and one of the wire ties in plan view.

Figure 6 is a detail vertical sectional view illustrating the tie loop or wire in elevation and the form boards associated therewith.

Figure 7 is a perspective of the means for connecting the inner. and outer walls.

Figure 8 is a fragmentary side elevation of one of the holding rods embodied in the invention.

Figure 9 is a fragmentary side elevation of a holding rod employed for joining adjacent form boards and for other purposes.

Figure 10 is a fragmentary side elevation of a tool' employed for turning the rod illustrated in Figure 9.

In the drawing wherein for the purpose of illustration is shown a preferred em-- bodiment of the invention the numeral 5 generally designates the improved form which consists principally of spaced series of form boards 6 arranged in superposed relation and edge to edge as illustrated in Figure 1.

The invention forming the subject matter of this application is an improvement over Patent #1,440,185 and resides principally in the particular formation of the tie wires, by means of which the opposed form boards may be connected to prevent bulging. Each tie wire is in the nature of an elongated loop 7 formed from a single length of wire ora plurality of, wires, the ends of which are electrically or otherwise welded together. \Vith reference to Figure 3 it will be seen that one tie wire or loop is mounted upon the upper edges of opposed form boards 6 and the inner sides of the form boards are collapse of the mold or form due to the unrestrained inward movement of the several boards is prevented. v

In setting up the improved form the lowermost course of boards 6 are laid on edge in the manner illustrated in Figure 1 and tie loops are extended across the upper edges of the opposed form boards at spaced points. It might be stated at this point that the lowermost series of tie loops or that series of loops which are arranged on top of the ldwermost course are provided with approximately triangular board holding members 15, the triangular board holding members being welded or otherwise secured to the lower portions of the loops 7 It will be seen that the triangular board holding members are arranged vertically and extend above the upper edges of the lowermost boards so as to constitute a guiding and holding means for the second course of boards. In other words the upper portions of the triangular board holding members 15 cooperate with the curved upper portions of the spring clips 9 in guiding the second course of boards into position and securely holding them in this position until the holding rods 12 have been inserted through the extended end portions of the loops 7 After the second course of form boards 6 have been applied and securely held in position by means of the members 9 and 16 the holding rods 12 are inserted and arranged in their locking positions as illustrated in Figure 3 after which the tie wires or loops 7 may be arranged on the upper edges of the second course of form boards. However the tie wires above the second course of form boards are not equipped with the triangular board holding members 15 as the holding rods 12 and the spring clips 9 are sufiicient to hold those boards above the second course in position.

The end portions of the boards 6 are provided with transverse cleats 16 to con tact with the boards at right angles thereto and to overlap the boards immediately and above and at right angles thereto. The cleats 16 are adapted for use on the outside corners and in the case of inside corners cross cleats 17 are employed, the latter cleats being less in length than the width of the boards to which they are attached. With reference to Figure 1 it will be seen that the cross cleats 16 embrace the outer boards at right angles thereto and thereby cooperate with the tie wires in holding the same in position.

In setting up a form the boards are laid edge to edge in two courses and in case the wall is of a double thickness with an air space between the thicknesses four courses of form boards are set up with suflicient space between the intermediate courses or inner courses to permit the lumber to be salvaged after the wall has set. In setting up the form the boards are laid edge to edge with a suitable number of tie wires connected to the rods 12. Of course the tie loops or wires are arranged in vertical series on in alignment so that the holding rods 12 may be freely inserted through the I terminal portions of the same. In setting up the mold the holding rods 12 are arranged in their looking or operative ositions and when the mold is to be taken own the flat sides 20 of the rods 12 are turned inwardly into op osed relation to the form boards whereby t e rods are loosened from tight engagement with the terminal portions of the tie wires. This permits the rods to be withdrawn. It might be stated that the flat side 20 of each tie rod has one edge rounded as indicated at 21 so that the rod may be conveniently turned the required extent. Also the lower portions of the rods 12 are slightly tapered as indicated at 23 so that the same may be freely passed through the lower series of tie wires. As previously stated after the rods 12 have been passed through the first and second series of tie wires the other tie wires or what might be said to be the upper tie wires are slipped over the slightly tapered upper ends 24 of the rods in the proper order.

Another feature of the invention resides in the means for connecting adjacent or contiguous form boards. In this connection it will be observed with reference to Figure 1 that a holding and locking rod 30 may be passed through the Vertically aligned terminal portions of the two tie wires 7 which respectively are located above and below a board of a particular course. Of course the tie wires 7 extend entirely through the wall as illustrated in Figure 2 and the inner portions of vertically aligned tie wires or loops 7 have connection with one of the holding rods 30. The upper portions of the holding rods 30 are formed with right angle ends or handles 32 adapted to be engaged by a key member 33 illustrated in Figure 10. The key menu-- ber 33 has a plain opening for the reception of the handle 32 and the key member has connection with a stem 34 to which a cross bar 35 is connected.

The cross bar 35 is in the nature of several lengths of gas or water pipe joined to a T 36 mounted on the upper end of the stem 34. The stem 34 which is in the nature of a length of pipe is of sufficient length to engage any of the handles 32 regardless of their position in the wall. Furthermore the stem 34 has its ends threaded into the T-

members

33 and 36 and rigidly secured thereto by means of pins 37. The pins 37 serve the obvious purpose of preventing the T-members from accidentally unscrewing.

\Vhen the form comprises similar inner and outer units for forming parallel walls as illustrated in Figures 1 and 2, the same may be connected by means of tie members, consisting principally of tie rods 40, the terminal portions of which are well imbedded in the concrete of the parallel walls. Nuts 4.1 are threaded on the tie rods 40 and engage and clamp a pair of filler blocks 43 securely in position in alignment with the form boards 6. In other words the filler blocks 43 are positioned as illustrated in Figure 2 and the edges of the same are beveled as indicated at 45 to permit the form boards 6 to be detached subsequent to the setting of the wall.

The opposed surfaces of the filler blocks 43 are of sufficient area to accommodate the adjacent nuts 41 while the wall contact surfaces of the filler blocks l3 are somewhat wider. The tie'members for the inner and outer surfaces of the wall may be located at suitable spaced points and enable the walls to withstand wind and other pressures. In fact the presence of the tie members for connecting the inner and outer thicknesses of the wall reduces the wall thickness which would otherwise be necessary.

In carrying out the invention pairs of the auxiliary rods may be located on opposite sides of the tie members as illustrated in Figure 2 so as to prevent the ends of the boards which abut the filler blocks from bulging and causing an increased wall thickness at this point.

With reference to the foregoing description taken in connection with the accompanying drawings it will be seen that a concrete form constructed in .accordance with this invention may be conveniently set up for forming a wall of a uniform thickness throughout and after the wall. has set sufficiently the lumber employed in the wall may be salvaged.

Having thus described the invention, what is claimed is 1. In' a form, the combinationof a loop having means whereby the same may be engaged by holding members, and spring clips secured to said loop and having curved portions for engagement with two adjacent form boards whereby to hold the form boards in position.

2. A form for walls comprising a plurality of form boards arranged in courses, tie loops extending across the courses and having their ends arranged outwardly of the form boards, holding rods extending through the extended terminal portions of said tie loops for holding the form boards in edge to edge relation, and spring clips carried by said tie loops and having curvedterminal portions adapted to engage two adjacent form boards whereby to cooperate with the holding rods in securing the form boards in position.

3. A form for walls comprising a plurality of form boards arranged in courses, tie loops extending across the courses and having their ends arranged outwardly of the form boards, holding rods extending through the extended terminal portions of said tie loops for holding the form boards in edge to edge relation, spring clips having curved terminal portions adapted to engage two adjacent form boards whereby to cooperate with the holding rods in securing the form boards in position, and cross members connected to the tie loops and supporting said spring clips.

4. A form for walls comprising a plurality of form boards arranged in courses, -ie loops extending across the courses and having their ends arranged outwardly ol the form boards, holding rods extending through the extended terminal portions of said tie loops for holding the form boards in edge to edge relation, spring clips having curved terminal portions adapted to engage two adjacent form boards whereby to cooperate with the holding rods in securing the form boards in position, and board holding members secured to said tie loops outwardly of said spring clips and cooperating with the spring clips to hold the form boards against lateral movement.

5. form for walls comprising a plurality of form boards arranged in courses, tie loops extending across the courses and having their ends arranged outwardly of the form boards, holding rods extending through the extended terminal portions of said tie loops for holding the form boards in edge to edge relation, spring clips having curved terminal portions adapted to engage two adjacent form boards whereby to cooperate with the holding rods in securing the form boards in position, board holding members secured to said tie loops outwardly of said spring clips and cooperating with the spring clips to hold the form boards against lateral movement, said holding rods having flat surfaces adapted to be turned into opposed relation to the form boards whereby to release the holding rods from looking engagement with the form boards.

6. A form for walls comprising a plurality of form boards arranged in courses, tie loops extending across the courses and having their ends arranged outwardly of the form boards, holding rods extending through the extended terminal portions of said tie loops for holding the form boards in edge to edge relation, spring clips carried by said tie loops and adapted to engage two adjacent form boards whereby to cooperate with the holding rods in securing the form boards in position, board holding members secured to said tie loops and cooperating with the spring clips to hold the form boards against lateral movement, said holding rods having fiat surfaces adapted to be turned into opposed relation to the form boards whereby to release the holding rods from locking engagement with the form boards, one edge of the flat surface of each holding rod being rounded whereby the holding rods may be conveniently turned.

7. A tie rod for forms comprising an elonated loop, the ends of which are adapted or the reception of holding rods, and spring clips secured intermediate their ends to the tie loop and havin their terminal portions curved longitudina ly for engagement with two adjacent form boards whereby to hold the form boards in position.

8. A tie rod for forms comprising an elongated loop, the ends of which are adapted for the reception of holding rods, and spring cli s secured intermediate their ends to the tie cops and adapted for engagement with two adjacent form boards whereby to hold the form boards in position, and triangular board holding members secured to said tie 100 s and cooperating with the spring clips in holding the boards in position.

9. A form for concrete walls comprising spaced apart parallel units, each including a plurality of spaced apart form, boards, a filler block for each unit, said filler block being disposed between spaced apart boards of the unit, and a tie rod extending transversely between the units and having the end portions thereof engaged with the filler blocks of the units, whereby the units will be connected together.

10. A form for concrete walls comprising a plurality of form boards, tie rods adapted for connecting the inner and outer thicknesses of a wall, filler blocks mounted on the tie rods and arranged between the meeting ends of the boards, and means whereby to hold the filler blocks in position, the edges of the blocks and the corresponding ends of the boards being beveled.

11. A form comprising a plurality of boards arranged in end to end relation, tie wires arrangled above and below the ends of the boards, olding rods extending through the tie wires and embracing the ends of the boards, and spring clips carried by the tie wires and engaging the adjacent portions of the boards.

12. A form comprising a plurality of boards arranged in end to end relation, the wires arranged above and below the ends of the boards, holding rods extending through the tie wires and embracing the ends of t e boards, said holding rods being formed with flat surfaces by means of which the same may be loosened from engagement with the tie wires and board engaging clips carried by said tie wires.

HAROLD R. SUITER.