US1694292A - Method of constructing and supporting forms for concrete work - Google Patents

Description

Dec. 4, 1928. 1,694,292

F. A. TRACEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETE WORK Filed Feb. 10, 1928 4 Sheets-Sheet 1 Q N v, E t o o o I a Q 0 a o o I MI 0 o o q\ &

I e I I nm A? N o a o 0 0 0 o a o o a l'iuframy w INVENTOR ATTO R N EY Dec. 4, 1928. 1,694,292

. F. A. TRACEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETE WORK Filed Feb. 10, 1928 4 Sheets-Sheet 2 &l

INVENTOR TTOR N EY Dec; 4, 1928.

F. A. TRA CEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETE WORK Filed Feb. 10, 1928 4 Sheets-Sheet ATTORNEY A 5 Dec. 4, 1928.

F. A. TRACEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETE WORK 4 SheetsSheet 4 Filed Feb. 10, 1928 m Trade ATTOR N EY Patented Dec. 4, 1928.

UNITED "S j FRED A. TRACEY, oFroitTLAnn, cane-on.

METHOD or CONSTRUCTING annsurronrme' roams non cones-nan wonx.

Application filed February 10, 1928. Serial No. 253,405.

My present invention has reference to a method of constructing and supporting forms for concrete work whereby any desired form that comprises form units designed to be bolted together may be obtained, the sald units being readily unbolted and removed without injury to the unit-s, so that the form can be practically continuously used.

Among the objects ofhe invention I seek to obtain a form construction that can be easily and quickly erected; one in which time is saved in stripping or taking down the form,

one wherein all of the materials comprising the same are re-usable, wherein the units constituting the form can be rigidly connected" and, therefore, produce a stronger 'construction than is usual; one in which perfect alinement of all the form units will be readily obtained, changes in the form after erection made without confusion or litter, and further wherein the form units may be assembled or disassociated without the employment of skilled labor.

To the attainment of the above desired results, the improvement also residesin certain other novel features of constructiongcombr nation and operative association of parts, one

satisfactory embodiment by the accompanying drawings.

In the drawings i I Figure l is a top plan view of the form for concrete work in accordancewith this invention. 7 7

Figure 2 isa sectional view on theline 22 of Figure 1.

Figure 3 is a perspective view of one of the main form units.

Figure 4 is a similar inner corner form units; I Figure 5 is a perspective view of one of the outer corner posts for the form.

Figure 6 is a similar view of the which connect the form'units.

Figure 7 is a sectional view approximately on the line 7-7 of Figure 1. V

beams Figure 8 is a sectional view approximately on the line 88 of Figure l.'

Figure 9 is a sectional view approximately on the line 99 of Figure 2. V

Figures 10 and 11 illustrate two ofa multiplicity of spacer strips'or elements which may be'employed for widening the form.

Figure 12 is a perspective view ofjthe-corner posts employed when the form is con structed at otherthanright angle.

of which is disclosed it will be noted also approximately 4 view of one of the I I centers and 6" from each corner of the units;

units 1', and the remainder of the improve- I ment may be constructed of any desired material, wood, however, being preferred. Each unit 1 is of a size to permit of the convenient handling thereof. For distinction the vertical or end posts of the frame of each of the units 1 isindicated by the numeral 2 and the top and bottom beams connecting the posts 2, by the numeral 3; There are intermediate vertical beams twhose ends aresecured to the inner faces of the beams 3 andtransverse plates 5 connecting the intermediate plates or beams 4 and the side beams or posts-2' in this manner it will be seen 'thatthe frames oonstituting'theunits'l present a strong and rigid construction. The frames of 'eachof theunits have a facing 6 of shiplap or other suitable-material, which facing in turn, isfaced with a metal sheet 7. These facings, materially reinforce the.

frame, andthe metal facings will'effectin obtaining moreperfect results than is possible with ordmarywoo-d forms for concrete work.

However, for rough work the metal facing i may be dispensed with; Allof theouter edges of theforms 1, thatis, the elements 2' and 3 anchored with standardsized bolt holes 8, and these holes are boredon exactly 6? and also at an equal-distance from the facing of the units: The holes are bored at this distance to-allow for bolt headsv and'large sized washers .and nuts which are screwed on t-he'bolts being received inside of the frames. The bolt holes a ranged 6 apart maybe re ferred to as the standard boringan-d the spac; g

ing of all bolt holes'on all are uniform, thus changeability and exact alinement at the joints. Ordinary standard units of certain size may be used with shorter or narrower" of the form unit-s units-only to fill up the required dimensions.

The form units 1 are arranged one over; the other and are connectedb y' bolts 9 and nuts which pass through the-openin'gs' S in providing complete inter- V lie of the said posts are disposed 3 aline with the bolt openings the upper and lower beams 3 of the said units,

f' of the inner'form units has a facing 26 s1m- (see Figure 7). The side or end beams 2 the adjacent units are not in direct contact with 'each other, the same being held from such contact by the arrangement therebetween of posts which I shall refer to as form-supports. These posts 10 are of rectangular formation and are made in convenient lengths which are multiples of 6 and .are provided with, transverse bolt holes 11 which are arranged 6 apart. The form supporting posts are arranged oneover the other and the bolt holes 11 nearest the ends from said ends. WVhen it is found necessary to cut thesefposts the bolt openings from thcsaid ends must be always arranged 3 from the said ends so that the bolt openings 11 will 8 in the form units 1, so that bolts 12 engaged bysuitable nuts pass through'the said bolt openings 8 in the units 1 and the bolt openings 11 in the form supporting posts 10. The heads of the bolts 9 and 12 contact with suitable washers and the nuts 18 which arescrewed on these'bolts' also contact with washers. The form supporting posts 10 are provided with spaced seriesof openings 14 arranged right angularly with respect to the-bolt openings 11 and these openings 1e are designed for the reception of spacer and tie wires 15 which properly space the inner. and outer mold units.

The jointsbetween the posts 10 are broken.

to the joint oru n'eeting ends with respect 1 so as not of the superimposed mold units to weaken the construction. When the mold V posts or strips 15 is to be widened, spacer elements, such as I and 16, disclosed particularly by Figures 10 and 11 are disposed betweenthe form supporting posts 10 and the sides of the units 1. These strips 15 and 16 are also preferably .ofwood and are bored transversely to provide bolt openings 17 which are spaced 6 apart. 'The only waste in the form construction will result in the cutting of the spacer strips or posts and the e 7 cutting in the formsupporting posts 10.

e which connect the and 6" away fromthecorners, the posts 20 for being indicated -The inner corner form units. each comprises a right-angular frame which is best illustrated by Figure 4 ofthe drawingsf ese corner form units are indicated by the numeral'lS, the outer posts or uprights therebythe numeral 19, the inner posts or uprights by the numeral 20 and'the'upper and lower strips or beams posts 19 and 20 by the numerals 21. The top and bottom members 21 are bored to provide bolt openings 22 which are spaced 6" away from each other,

"nd 20 are connected by transverse brace strips-24,-an'd of the posts 20 are connected by angle brace drawings.

the inner corners members 25. The outer surface of the frame as to the posts 10, when it to employ the said'spacing strips. V

The end units for the outer wall of the form, that is the units adjacentto the outer.

corners of the form are similar to the units 1, but-,of coursegaro narrower. These units also are, of course, of a greater length'than the sides'ofthe inner corner units 18 and the ends of these units indicated for distinctionby the numerals 28, have bolted thereto cor-j ner posts 29 illustrated in Figure 5 of the The outer posts .of the units 28 have the boltopenings therethro ugh spaced 6" apart, but the series of openings inthe, said posts are staggered withrespect to each other so that one of such series of bolt open-Q with the bolt openings 30 that transversely through'the posts 29 and ings will 'aline pass the other series will register with belt openings 31 that are arranged right angularly' bolt openings 80. be seen that the but out of line with the. By this arrangement it will bolts that connect the'corner posts to the form are disposed a slight but suitable distance away ffrom' outer cornerunits of the each other. p I r It is, ofcourse, necessary to brace onshore the form units so that the same will .not

bulgewhen concrete is In the drawings I have illustrated the shores or braces applied to only the inner form units.

- on certain of the posts or uprightsof the form units I arrange brackets ofa particular and peculiar construction. Each of these bracketscomprises a substantially rectangular-body portion made up each' n bolted, in the showing of the drawings, to the ostsof the-units 1 and an outerplate 33 bolted to the outer end of the plate 32, the connecting bolt between the plates 32 and 33 poured into the form.v

'75 'rather'to the form support .10 and if neces- 'sary tothe spacer strips 15 and 16 'as'well is found necessary of a lower plate/32 7 also securing thereto 'an'angle brace plate 34:

which is boltedto the said upright of the unit 1. The upper end of the plate 33 is con nected by a removable pivot 35 to the upper plate 36 which is bolt-ed to the upright or post of the unit 1. By removing thepivot itwill be noted that the plates '33 and .36 will be swung away from each other which permits of a beam.-37 being and supported upon theplate 32;, After the beams 37 are-thus arranged theplates'33 and 36 are swung toward each other and the pivot inserted through the pivot openings therefor.

received in the bracket Also after this is effected wedge elements 38 are inserted between the plates 33 and 36 for frictionally contacting with the beam 37.

Received through the beams 37 there are eye bolts 38'which, of course, are engaged by nuts. The headed or eye ends of the bolts 38 are disposed upon the inner or confronting faces of the beams 37, and these ends or heads have pivotally secured thereon the bifurcated end or head portions 39' of screws 40. Each screw 40 is threaded through an opening in the, outer end of a metal sleeve tl that surrounds and is secured to a shoringbeam 42. The ends of the shoring beams 42 that receive the screws 40 therein are, of course, provided with sockets 43. Threaded on the screws and contacting with the outer ends of the sockets 43 there are adjusting nuts 44. The shoring form construction.

beams 42 are each provided with equidistantly spaced bolt openings 45, and the respective pairs of cooperating shoring beams are designed to have their ends arranged one over the other and through the alining openings in these lapping ends there are passed bolts 46 which are, of course, engaged by nuts. 7 3

By adjusting the nuts 44: on the screws 40 the 'adjustably connected shoring beams will be moved longitudinally with respect to the units of the form and effectively sustain such units in proper spaced relation to each other.

When the sides of the form are disposed at other than a right angle, corner posts 47, such as illustrated by Figure 12 of the drawings are employed, it being noted'that the face 48 of said beam!!! is beveled and cut at an angle.

It is believed the simplicity and advantages of my construction will be fully understood and appreciate'dby those skilled in the art to which such invention relates, when the-foregoing description has been carefully read in connection with the accompanying drawings, but obviously I do not wish to be restricted to the precise details of construction herein set forth, and, therefore, hold myself entitled to make such changes therefrom as fairly fall within the scope of what I claim. It is to be further understood that while I have mentioned the bolt openings being arranged six inches from center to center, the said openings may be otherwise spaced,*it being only neces-v sary that the bolt openings be arranged equi distantly from each other throughout the Having described the invention, I claim:

1. A form for concrete work, comprising inner and outer spaced units, each of which including a frame, of the same height and through for the reception of bolts therethrough when the units are arranged side by side and one over the other, vertical form supporting posts through which the side .bolts pass and spacer wires passing through transverse openings in the inner and outer supporting posts and spacer strips between the form supporting posts and form units through which the bolts also pass, breakable v a brackets oncertain of the inner form units, eye bolts carried thereby, screws pivoted to the eye bolts, adjustably connected shore' beams having sockets in the ends thereof for the screws and nuts threaded on the screws for contacting with the ends of the shore beams. r

2. A form for concrete structures, comprising inner and outer units, all 'of' which include frames of the same size and dimensions except .the corner units, all of said frames havingfacings and the ends and ed es thereof being provided with equidistantly spaced bolt receiving openings, the inner corner frames being of triangular formation and braced, said units-designed to-be arranged edge to edge and in superimposed relation and to have bolts passing through the registering openings therein, form supporting posts having equidistantly spaced bolt open ings therethrough that are arranged between the confronting edges of the units and receiving the bolts therethrough, spacer strips between the form supporting posts and the frame units having equidistantly spaced f openings for the reception of bolts, wire members passing transversely through the formf supporting posts, corner posts for the corners of the outer frame units having equid1stantly spaced bolt openings for the reception of the bolts therethrough, collapsible brackjets removably and adjustably secured to the inuerframe units, a beam supported inthe brackets, wedge elements securing the beam in the brackets, shorings between the brackets, each comprising adjustably connected beams having sockets through the ends thereof, a casing surrounding said ends,- swingably supported screws on the beams received through said casings and into said "sockets and nuts threaded on said screws for I FREDA. TRACEY.

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