US1237999A - Construction of ferroconcrete walls and the like. - Google Patents

Description

C. M. BURNETT. CONSTRUCTION OF FERRO CONCRETE WALLS AND THE LIKE.

APPLICATION FILED FEB. 23,19I6- 2 SHEETS-SHEET I.

Patented Aug. 21, 1917 igs msww.

Tw m C. M. BURNETT. CONSTRUCTION OF FERRO CONCRETE WALLS AND THE LIKE.

APPLICATION FILED'FEB. 23, I916.

Patented Aug. 21, 1917.

2 SHEETSSHEET 2.

Fig.1)

, lUl TlfT" STATES PATENT onnron.

CUTTIBERT MILLER BURNETT, or SHIRLEY, ENGLAND.

"CONSTRUCTION or FERROCONCRETE WALLS AND THE LIKE.

Specification of IiettersiPatent. Patented A11 21, 1917.

Application fi led February 23, 1916. Serial No. 80,041.

To all whom it may concern: I

Be it known that I, C TI-IBEnT MILLER BURNETT, civil engineer, a subject of the King of Great Britain, residing at St. Katharines Clifton Road, Regents Park, Shirley, in the county borough of Southampton, Eng, have inyented certain new and useful Improvements in the Construction of Ferroconcrete Walls and the like, ofwhich the following is a specification. This invention relates to the construction and reinforcement of concrete walls of buildings and the like, and has for its object to provide means, namely, specially prepared forms, casings, or shutters, for holding or retaining plastic concrete inposition during the process of constructing and until set, and means for holding the said forms in position during the operation of filling, and for retaining them in position until the concrete is set. i

To the above end my invention is characterized by the employment of a plurality of shutters or form sections which are made to a suitable standard size or sizes. These shutters may be constructed of wood or iron or of cementand asbestos sheets of the kind known as Ete1'nit, or"Fibro cement or the like, hacked or reinforced with wood or other suitablefsubstance; or they may be made of the material known as jointless flooring, or othei material' reinforced internally with wire or thelikeyorcovered With canvas or the like externally. According to my invention the shutters are fitted at intervals on their top .and bottom edges or otherwise with hooks so constructed that when required, they may be operated to re lease their hold on the attachment which connects the shutter of w'hich they form part to the opposite shutter. The hooks preferably project beyond the inner face of the shutter or otherwise.

The method of carrying out my invention for constructing "concrete walls is as follows: I first strain, by mechanical or other means, wires or other suitable reinforcements horizontally along the fixedsite of the wall at distances apart equal to the width of the shutter, that is, equal to the vertical distance apart of the releasable hooks, or in some other suitable position. To these wires or reinforcements there are, attached by suitable means at points opposite the re-- leasablehooks metal or other loops or attachments which are fitted at the shutter ends with eyes or attachments which engage withthe releasable hooks on the shutters. These loops have the effect of holding the shutters at the required distance away from the reinforcements, and the required In another I distance away from each other. form of the invention the loopsoare releasably attached to the back of the shutters, as in Figures 7, 8, and 9, hereafter illustrated.

Having thus generally described the object, nature, and effects of the invention, I will now proceed to describe it with reference to the accompanying drawings. The examples which I have illustrated show ar rangements and constructions of parts according to this invention. figures the same parts are designated by the same letters, and they correspond with those used in the following explanation.

The accompanying drawings are given solely by way of examples for the purpose of showing how the loops may be releasably attached to the shutters, and also how the loops may be attached to the reinforcements; their effectiveness in supporting the shut- In the, various ters in their required position being mainly ings, Figs. 1, 2, and 3, relate to one method of obtaining the object of this invention.

Figs. 4 and 5 show another method, and Figs. 7, 8, and 9, illustrate still another method.

Fig. 1 is a sectional elevation of a pair of shutters ready for filling, also showing the top edge of a pair of shutters already filled with concrete. i

Fig. 2 is a plan view of part of a pair of shutters showing the releasing hooks, reinforcement and connecting loop in position. Fig. 3 is an elevation of the back of a part of a shutter, showing cranked spindles for actuating the releasing hooks, and hooks for retaining the spindles in a fixed position.

hinged bar provided with-hooks at the top andbotto-ni. Y I V r Fig. 5 is an elevation of the backof part of a shutter showing the hinged .bar and clips for holding the bar in" position. A A Fig. 6 is a SGClJlO'HELl PlHJL of the: bar and clip.

. r 7 is, a pl-an of part-of a pair of shut ters, showing the reinforcement and loop attached to the shutters *by means -of thumb screws which take the place of the hooks iis ed'in the other forms of the invention.

Fig- 8 is a sectional elevation of Fig; i 7. Fig". 9is an elevation ofthe back of a sh'ntter eq nip peel with the th'n'mb-scfrews.

Like characters denote: similar and like parts throughout the specification and drawings. r

With particular reference to Figs. '1 to 3., a

denotes the shutters or sections of the form co'iiipiising a facing member a? of sheet material" such as asbestos; ironsheet-lngor "the like, and "a i'fame or tacking-a which may be 05F; wood or other suitable material.

Secured to the frame of each section and j-acent its top and bottom edges are the bars or spindles Yfiwhich arer'otatably mounted in the cleats 7). The inner end 'of each b'a'r is "bent an angle to the ren'i a'ining portion so as to provide a suitable handle for rotating the bar about its akis. The outer or thebars "B have secured thereto the hooks 7), said hooks projectin'glatera'lly therefrom "and ae'coitnm'odated in recesses formed in the top and "bottom edges of ea'ch s'ect'ron a, so

thatthey will not protrude beyond thexe'dges thereof but lie substantially flush therewith. setting the row seeti-on'snp, andafter the rein-forcing members d have been stretched or laid in the niannerb'e fore men'- tioned, use is made of the connecting or spacing loops c Eachof these loops 0 'p're'feteably comprises an elongated plate having a central epening c in which the 'corre spending reinforcing member cZ-engages and haW in-g 'openi-i'i'gs '0 in f'the'opposite ends thereof in w hi'clifengag'e the J bills of the hooks b, asshown in Figs. 1 and), said" bill portions having their curved inner or engag ing. edges disposed ec'centr-i'callfy of the axes "of-rdtat ion 05f theb'a rsor spindles 5 so as to exert a wedg ing or biiiding action upon the ends or the loop when the latteris rotated in one direction means [of its bar or spi i-idler and to immediatelyrelease the loop ends when rotated intheother direction. It-Wi'llbe clear ft-rom Fig; 1"that i'n erecting the florm'i-n acc'orda ne'e withtlre invention,

the mater-sin member's (Z are first laid at "a relative dist nce apart equal to the width of each section of the form. The loops are then "disposed on the [reinforcing members and the 'sectionsa are "arranged in place in the nianner'shown; with their hooks Um'o'ved toengage-in the openings 0 of the spacing or loop. members 0. After one section of the form has been filled it may be built upon in the manner shown t-he lower hooks .7) of the added form sections engaging in the openings 0 5 '01? t the uppermost spacing memloer 0 of the lower adjacent sections. In this way, the form may be built up as the work progresses and since the spacing members 0 remain"permanently embedded in the concrete the form sections are held rigidly during the course of-th'e Work.

Provision is made for'l'ocking the hooks 7) engagement with the-spacing members 0, by me'ans'fof retaining 'h'oo'ks -79 which look over the handle portions oftlie barsb to 'p reveirt them from rotating. WVhen it is desired to knock do'wn'thesections, it is only necessary to release the retaining hook-s b and to rotate the bars Z9so as to move the hooks b from engagemei'it with the spacing iii-embers c.

In Figs. and '5 a modified lfo rm of'the inveiition is showmtlre modification consisting mainly in a Variedconstrrrcti-on of the means for retaining the shutters or form sections (l in position. According to Figs. i and 5, each of the SDHClhg members 0 consists oi a wire looped around the reinforcing members (Z and'lraving its outer ends p rovided with -'eyes in wl'iichengage the hooked enter ends 0 of a pair of Vertical fastening bars 6 hinged together at 5 at their confronting inner ends, these bars, 'when arranged in position, having their free ends extended thrlough'the cleats b y'secured to the form section. Plvotedretaining members '7)? are also provided 'ior r'etaining" the hinged bars in position and, when it" is desired "to remove said Tb'ars, the'retai'ning members '7) are m ved from engagement therewith so that thelro'o'ks Z1 may 'be released from the spacing members '0 by the'brea'king of 'thehinged joints 6t otsa'id bars. The loop members a lraves'pnrs 6 thereon which are formed by hearing and depressing; a portion of the Will'be clearly "seen from F 8. Thumb screws Ware extended through the eyes of the members '0 and are removably threaded in the blajt sj secured on the'frame a of the form section a.

In both embodiments shown in t, 5,

the body of said members, so as to lie oppo; I

the loops or spacing members 0, extend.

6, 7, 8, and 9,,theupper and flower edges of each form section are suitably recessed to provide spaces through which. the ends (if t is to be understood that in erecting the form, according to the invention, (the reinforcing members (Z have their ends anchored to beams or uprights and are thus held taut or in a semi-rigid condition, ,The form sections shown in the modifications maybe built up in substantially the same manner as the sections'shown in Figs. 1, 2 and8,

The wires or reinforcements together with the loops hold the shutters or form sections in position while the intervening space between the shutters is filled with plastic concrete, the reinforcements and loops being built in with the concrete and after the concrete has become set form permanent parts of the wall. When the concrete is sufliciently set the hooks are released and the shutters removed.

My invention. provides a simple and inexpensive wall for houses, stores and other buildings, garden and retaining walls and the like, which by these means can be constructed of any desired thickness, the length of the loops being the determining factor.

The invention is also suitable for the side shuttering of beams and the casting of lintels, posts, and the like.

Having thus described my invention,what I claim as new therein, and desire to secure by Letters Patent is 1. Apparatus for constructing reinforced concrete walls and the like, comprising, in combination, a pair of spaced form sections adapted to receive the plastic concrete therebetween; means for ho ding a reinforcement under tension in the space between theform sections; a loop arranged transversely 111 said space and secured mtermedia-te its ends to the tensioned reinforcement, to hold said form sections in spaced relation, said loop being maintained in a comparatively rigid position by the tension of the reinforcement; and retaining means carried by said form sections and engaging the opposite ends of said loop. a

i 2. Apparatusforconstructing reinforced concrete walls and the like, comprising, in combination, a pair of spaced form sections adapted to receive the plastic concrete therebetween; a reinforcement wire extending longitudinally of the space between said form sections; means for holding said wire under tension; a loop arranged transversely in said space and secured intermediate its ends to said wire, to hold the form sections in spaced relation, said loop being main tained in a comparatively rigid position by the tension of the wire; and retaining means carried by said form sections and releasably engaging the opposite ends of said loop.

3. Apparatus for constructing reinforced adapted to receive the plastic concrete therebetween; a loop arranged transversely in the space between the form sections; a rotatable member arranged against the outer face of each form section; a hook carried by each of said members for releasable engagement with the adjacent endof the loop; and means associated with said members forlocking said hooks inengaged position.

Apparatus for constructing reinforced concrete walls and the like, comprising, in combination, a pair of spaced form sections adapted to receive the plastic concrete therebetween; a loop arranged transversely in the space between the form sections; a rotatable handle-carrying bar arranged against the outer face of each form section; a hook carried by each bar for releasable engagement with the adjacent end of the loop; and locking means engageable with the bar handles to retain the hooks in engaged position.

5. Apparatus for constructing reinforced concrete walls and the like, comprising, in combination, a pair of spaced form sections adapted to receive the plastic concrete therebetween; a loop arranged transversely in the space between the form sections; and a vertical bar arranged against the outer face of each form section for movement with respect thereto, each bar being provided at its upper end with a hook which is alternatively engaged with or released from the adjacent end of the loop consequent upon the movement of the bar.

6. Apparatus for constructing reinforced concrete walls and the like, comprising, in combination, a pair of spaced form sections adapted to receive the plastic concrete therebetween; a loop arranged transversely in the space between the form sections; hooks rotatably carried by said form sections and provided with bills for releasable engagement with the ends of said loop, said bills being arranged eccentrically of the axes gaged position.

7 Apparatus for constructing reinforced concrete walls and the like, comprising, in combination, a pair of spaced form sections adapted to receive the plastic concrete therebetween; a loop arranged transversely in the space between the form sections, hooks rotatably carried by said form sections and provided With bills iionreleasabie engage ment with the ends of said loop, said bills being arranged e'ccentricaliy of the axes of rotation of said hooks so as to exert :a Wedging action upon the loop ends when the hooks are rotated in one direction, and to imm'ediahely release said loop ends when rotated in the other direction; a rotatable handle-carrying bar individual to" each hook and Whereon the same is mounted, SELId bELIS any hand in presence of two subscribing Wit- 15 'IIGSS'BSV CUTHBERT MILLER BURNETT.

Witnesses:

FREDERICK J. CnnEsBRoUGH, KATHLEEN MORRIS.

Copies 'of this jp'ate'nt may be obtained for five cents each, by addressing the flommissioner of Patents Washington, 30.0. I

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