US1836197A - Floor form and support - Google Patents

Description

Dec. 15, 1931. E. L.. souLE. 1,836,197

FLOOR FORM AND SUPPORT A Filed OCT.. l0, 1928 2 Sheets-Sheet l 1 l -1; .nmuizc l .Y wm ,l1 ,I....LV.........................t.:... ..m l l A1.., f l u i. F

Dec. 15, 1931, E. 1 soULE l FLOOR FORM AND SUPPORT Filed ont. 1o, 1928 2 Sheets-Sheet 2 NVENTOR.

BY V

ATTORNEYS.

' Patented Dec. 15, 1931 Enwmnn-SOUL, orfBEnxELEY, CALIFORNIA FLOORA rompaI AND `surnom? y.lpplia'cifm1meri catererl 1o, 192s. seriairro. 311507.

This invention relates to a floor form upon which concrete slabs are cast, and. especially to a supportfor thefloor form. v

In modernv buildings, whether steel or concrete, the floor structure usually CODSSS f modate all conditions.

rgreat and costly. However, due to great dif- `ferences in span and lengthl of iioor beams in dierent buildings, it is often necessary to resort to wooden forms as the steel: forms are not always sufficiently adjustable Vto accom- The Object of the present inventionis to generally improve and simplify the construction and operation of steeliioor forms, to 'I provide a form and supporttherefor which is adjustable to take care ofall variations in provi-dea steel formi which is adjustable both laterally and longitudinally so as to take ,care or' any change in span between the beams, or

,v A any change in length, vand further to pro- -vide a rigid support for the steel forms which is adapted to be quickly attached tothe floor beams when the forms are to be placed inpo* sition, and just as f quickly and readily re`v moved when the concrete has been poured "and'set, v

VThe invention is shownbyway of illustration in the accompanying, drawings, `in which:v v Y v v Fig. 1 isa vertical section of' a floor slab showing the position of the floor forms and the support with relation tofthe beams in the floor, v l

, Fig. 2 showsthe manner'of vsupportingthe ioory forms with relationl to. a floor beam where ireprooiing is not required,

Fig. 3 shows the manner of supportingthe' ioor form where reprooting ofthe {ioor beam is required,

Fig. 4' is a perspective .yiewQa supportj ing bar clamp,

span, and length between the floor beams, to

Fig. 5 isa perspective view of one end of the supporting bar. i Fig. 6 isa perspective view showingthe manner of overlapping the floor forms for longitudinal and lateral` adjustment. Referring to the drawings in detaili'par- Licularly to Fig; l, A andB indicate a pair of interspaced floor beams, and C a reinforced concrete Hoor slab supported thereby.

The floor forms whichsupport the iioor slab" Y `7 when the concrete is being poured are indicated at 2, 3v and 4. Means for supportingthe floor forms are indicated'at 5. l The'means v employed will Vhereinafter be referred to as the supporting bar. `It is T-shaped in con-V struction and may be as long as desired. It is provided with one'orl more clamps,` gen` erally indicated at D andE.V These clamps 5 and theyengage the lowerV flange 6 of the floorbeams Afand- B, thus Asecuring the bar are Vslidably mounted on the supporting barV with relation tothe beams. .Thejbar in turn forms 'afsupport forthe floor forms indicatedl at 2, 3 and 4 and the concrete may thus be pouredto form the slab indicated'atjC., One ofthe clamps is illustratedin perspective, see'Fig. 4. It consists of'fa' top section 7, ,whichl is exten-ded to form a clamping langeS, and an upper shoulder' 9.V Itisprovided with side sectionsr1010 and these side sections are inturned, asat `l1, t0 `form channels 12, which engage and support the clamp with relation ttothe head ofV the Tbar` 5l Pivotally mounted as at 13" Onfone side of the clamp is a. latch 14. This latch-is free to pivot at the point 13, and isv provided with` a counter-weight l5, whichv serves the func;v tion of automatically swingingv the latch 14 Y into engagement with the opposite side o the.

beam, as shown in Fig. l, thefunction` ofthe latch being that of retaining and securing the clamp as a whole against., endwise moveflangenofvabeam. The forward face of f the latchis inclined, as indicated at 14a, this inclined' `face Vserving vthe, function of auto- Vmatically depressing the. latchL as it passes .overjthe-base flangevoifthebea-1fr1`,. bu twhenit'- ,100i

passes the counter-'weight raisesthe 'latch and",

.menton the supporting bar when it has been brought. into engagement with 4the lower .Y

engagement of the same, due to the action of;

the counter-weights 15.

When the clamps are engaged-the bars 5 may be secured if desired by tightening up set screws 17 mounted in the sides of the clamps. The whole supporting structure is thus rigidly secured to the floor beams. The Hoor forms 2, 3 and l are next placed in position as shown. These forms are laterally adjustable as they overlap each other, and they are also longitudinally adjustable as they overlap each other end for end, as clearly shown in Fig. 6, that is, the form section indicated at 18, overlies the form section 19, and these may accordingly be adjusted longitudinally in the direction of arrow Z2 to suit any variation, or to fit any change in length of beams. The lateral adjustment caused by the overlap indicated by the arrow c takes care of any difference in sgan between beams.

After the floor forms have been placed in position they may be secured by wires, such as indicated at 20, see Fig. 1. That is, the base sections of the floor forms are perforated as at 21, see Fig. 6 and wires may thus be passed through the perforations and around the bars 5, thus securing the form sections against movement once they have been placed. The endmost form section indicated at 2 engages the shoulder 9 and it is thus secured between the shoulder and the side of the beam, and as such is also held against displacement, the end form shown at 4c being secured by wiring as indicated at 23.

The clamps D and E are only employed f `when the supporting bars 5 are attached to the lower flanges 6 of the beams, and especially when a floor beam of J section is employed, as shown in Fig 1. The supporting ars may, however, be supported above the beams, for instance as shown in Fig. 2. B

referring to Fig. 5 it will be noted that the end of the supporting bar is provided with a foot extension 25, which is perforated as at K `26, and it should also be noted that it is provided with a notch, as indicated at 27. This notch is required when the supporting bars are placed in the position shown 1n Fig. 2. A wire or rod hanger, such as shown at 28 Y is placed in the notch 27 and the opposite end 'is passed over the topflange of the I-beam,

as indicated at 29. The hanger thusfforms a rigid support for the bar 5 and this in turn can then support the floor forms, for instance,

Vas indicated at'2a. This particular lform is provided at its base with an inturned flange 2b, and this may be clamped against movement by a washer 30, which is held in clamping engagement therewith by means of a bolt and nut, such as shown at 3l.

The method of supporting the bars 5 and the floor forms illustrated in Fig. 2 is only employed where fireprooling of the iioor beams is not required.

By referring to Fig. 3 the manner of supporting the lireproof beam structure is shown. In such a structure, wooden forms are employed, as indicated at 33, these being supported in the usual manner by a cap 34C and a post 35. The side of the form will, in this instance, provide a support for the bar 5, and the floor form indicated at 3a. The foot extension shown at 25 in Fig. 5 is required in this instance. The foot extension is placed on a ledge 37 and nailed thereto, as indicated at 38. When so supported the iioor forms indicated at 3a are placed in position and they are there secured by a washer 30 and bolt and nut 31, as described in connection with Fig. 2.

From the foregoing it will be noted that the bar 5 may be employed in conjunction with different floor structures, the type shown in Fig. 1, and the type shown in Figs. 2 and 3. In Figs. 1 and 2 the supporting bars are secured directly to the floor beams, while in Fig. 3 the supporting bars are supported by wooden forms or the like.

The advantages of the floor form and support described are;

1 They provide adjustability for different spans between trusses or beams.

2. They are also adjustable for varying lengths of beams,

3. The bars 5, no matter how they are at- Llached, provide a rigid support for the floor orm,

4. The floor form and support when employed, as shown in Figs. l and2 eliminates shoring.

5. When the supporting bars are attached to the beams, as shown in Fig. 1 the clamps are automatically locked in position by merely sliding them along the supporting bars until engagement is made with the base flanges of the beams.

6. The supporting bars are easily and quickly placed in position.

7. The supporting bars and ioor forms are of such size as to be easily handled when placing them in position or removing them.

8. By employing the bolts and nuts indicated at 31 at opposite ends of the supporting bars, the clamps D and E are secured against removal, thereby avoiding loss of parts.

9. The supporting bars may be of any length. They may cover a span between two floor beams or they may be extended to cover two or more beams if desired.

10. The clamps are provided with latches which automatically swing to locking position with relation to the floor beams when the clamps are applied and the latches mayV here be locked in their engaged position bytightening the pivot bolts 13., The clamps as a who-le may in turn be locked to the vbars by means of the set screws 17.

11. The supporting bars may also beattached to the lloor beams without theclamps, as illustrated in Fig. 2, by merely notching the ends of the bars and supporting them by means of hangers as shown. f

12. By providing foot extensions 25 on the ends of the supporting bars, they may be attached to bearing walls or to molds as shown in Fig. 3. Y

13. Byreferring to Figs. 1 and 4', it will be noted that the side sections of the clamp are extended beyond the latch T14 and they thus present a projection which may be struck by a hammer or like tool to cause release of 'the clamps if they should accidently become wedged or otherwise secured. In this connection it might also be stated that the latch is provided with a lug 14a so that this may also be struck with a hammer or like tool to release it should it become wedged.

14. By referring to Figs. 1 and 4, it will be noted that a liberal spacing is formed between the side s-ectionsof the clamps and the supporting flange 8, hence providing suii- Y 2. The combination with the beams of a.

floor structure of a plurality of supporting bars disposed below the lower flanges of the beams; clamping members carried by the bars and longitudinally adjustable thereon; said clamping members engaging the lower anges of the beams to secure the bars to the beams; a pivotally mounted latch 0n each clamp; means on each latch for automatically swinging it upwardly into locking engagement with relation to the flan es of the beams; and floor forms supported y the bars between the beams.

3. The. combination with the beams of a floor structure of a plurality of supporting bars disposed below the lower flanges of the beams; clamping members carried by the cient space to take care of flanges of varying Y thickness of cross section.

15. Means such asV the washersrSO, and

clamping bolts 31 are employed Jfor securing the .end forms against displacement and by perforating the base flanges of the intermediate form sections it is possible to wire the same to the supporting bars and thereby secure them against displacement. 1

While certain features of the present invention are more or less specifically described, I wish it understood that various changes may be resorted to within the scope of the appendedclaims similarly that the materials and finishes of the several parts employed may be such as the manufacturer may decide, or varying conditions or uses may demand. v

Having thus describedmy invention, what I claim and desire to secure by Letters Patent is: Y'

1. The combination with the beams lof a A Hoor structure of a plurality of supporting bars disposed below the lower flanges of the beams, clamping members carried by the bars and Vlongitudinally vadjustable thereon;

said clamping members engaging the lower flanges of the beams to secure the bars to the beams; locking means carried by the clamps and adapted to automatically lock the clamps to the flanges of the beams; and lloor forms supported by the bars between'f'the beams. 4

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