US1361105A - Centering-support - Google Patents

Description

W. E. SEXTON.

CENTERING SUPPORT.l

APPLICATION HLED MAR.12. 1920.

1,361,105. Patented Dea-7,1920.

2 SHEETS-SHEET 1. jrqlsExToN. CENTERING SUPPORT. APPLICATION FILED MAR. 12y |920.

Patented Dec..7, 1920.

2 sH'EETs-SHEET 2.

INVENTUR A TTOH/VE YS w/T/vfssss UNITED STATES PTENT OFFICE.

WILLIAM E. SEXTON, OF NEW YORK,'N. Y., ASSIGNOR` TO JOSEPH D. SEXTON, OF

NEW YORK,v N. Y.

cENTERING-surronr.

To all whom t may concern.'

Be it known that I, WILLIAM E. SEx'roN,

ments in @entering-Supports, of which thefollowing is a specification. l

VMy invention relates to supports or centering of the type used in the construction of monolithic floors and kindred concrete structures and has for its object thek provision of asupporting means whereby the centering is etticiently supported during ythe pouring and setting of the concrete or other coalescentinaterial and whereby said centering may be readilyremoved at the proper time without injury either to itself,'to the support or to the concrete structure. vMy invention will be fully `described hereinafter and the features of noveltyV vwill be pointed out in the appended claims.

. In the accompanying drawings, which for illustrative and descriptive purposes show an example of my invention, without defining its limits, Figure 1 is a plan view partly in'se'ction of the support with the centering in place thereon; Fig. 2 is a sectional view on the line 2 2 of Fig. 1; Fig. 3 is a section on the line 3 3 of Fig. 1; Fig. 4 is a secl. tion similar t0 Fig. 2 but showing the partsk in a dierent position; and Figs. 5, 6 vand 7 are detail views illustrating elements ofV my invention.

.Primarily the invention use in the construction of monolithic oors and has been so shown and will be so de-f scribed; it will be understood however, thatk the invention"v may be `found `useful in con nection with the construction-of concrete structures of other types and that such additional uses are to be recognized as being within the scope of the said invention.

As shown inthe illustrated example my improved support comprises .suspending members 10 and 10, formed at one end with hooks or the like 11V and 11? andprovided respectively with longitudinally extending slots 12 and 12a preferably closed atboth ends.,V T heY members -10 of'each support are vlocated opposite to each other in spaced relation and' in juxtaposition tothe members 10a which extend ina common plane at approximately rightanglesto said members 10 as shown in Fig. 1. `4Main ,slides 13 arek 'is intended .for

Vclamp the slides Specification of Letters Iatent. Patented DBC. 7, 1920. Appiiation md March 12. 192e. 1 serial ivd. 365,143.V i i slidably mounted upon the members 10 in surface engagement therewith and are provided with longitudinal slots 14 which register with the slots12 of said members 10;

at one end the slides 13'carry extensions l5 Whichproject toward each other and are bolted or otherwise secured to blocks 16 0r their equivalent. Similar main slides 13a are mounted in slidable surface engagement with the members V10a and Valsohave longitudinal slots 14a arrangedjto register withV the slots12a of said members 10a. The main slides '13?L each have one end also formed with an integralextension 15a which projects beneath an extension 15 and is bolted or otherwise securedthereto, thus forming a unit consisting of the main slides 13 and 138L with their extensions 15 and 15al and the blocks 16 or their equivalents.

, Auxiliary slides 17 and 17a are mounted in slidable surface engagement with the members 10 and 10a respectively and likewise are provided with longitudinalslots 18 and 18u arranged to register with the slots 12 andl 122L thereof. The auxiliary slides 17 and 17 a are formed with outwardly projecting extensions 19 and 19!il respectively, as shown in Figs. 2 and 3.

In order that the main slides 13 and 13'L and the auxiliary slides-17 and 17a may be secured in adjusted lpositions or fixed upon the members 10 and 10, any suitable means maybe provided. For instance, headed bolts 20 yand 2()a andfcoperating nuts 21 and21{l may be used for this purpose, the boltsin such' case projectingv through the registering slots 12, 14 and 18 and 12"14 and 18a respectively and in coperation with the nuts 21`and 21, serving to securely j Y upon the suspending inembers 10,and 10. f J' In utilizing my improved support as in the illustratedV example, the hooks 11and 11a each projecting into a sleeve 22 of wood or othersuitable material are hooked over the lower flanges 23 of the I- beams 24 and 24, which extend longitudinally andtransversely of the building `and are incorpoand y1'? and 17"l and theblocks 16 or their equivalents, are suspended from said I`- beamsV 24 and 24a., the illustrated example showing two supportsdocated Iatopp'osite 11,0

v` j 3.1'which`hook`over the. upper Yflange;23a ofV whifhis duplicated lthroughout the varea of bers 27 andas.

l jecting ends of a rectangle formed by the ' beams 24 and 24a which arrangement, itfwill VVbe understood, may be carried out throughout' the 'area of the complete floor. Either at this stage or previously, the slides -13 and 13 and'17 and 17a are adjusted to the positions necessaryY to secure the predetermined results and are fastened in place by means of the bolts 20 and 20aand `nutjs21 and 21%V Y It will further be understood that this arrangement is not an arbitrary one 'and may be changed 5' for instance if'the rectangles referred tok are too large, ory for other reabe desirable, additionalV supports 'maybe located at intermediate 'points of each rectangle formed by the beams 24 and24z.V j Longitudinal centering strips 25v are carried upon the extensions 19 ofthe auxiliary slides 1,7 and similar transverse centering strips 26are carried upon the extensions 19 of the auxiliary slides 17., these strips 25 and 26being located at a distance below theV I-beams 24. and 24a'respectively. Upright Y sidef'centering members 27 rest' upon the` hooks 11 of the members 10y and project downwardly between the sameV into engagement with the'Strips 25 and upwardly beyond the blocks orthei'r l equivalents 16. Similarupright end centering members 28 rest upon the hooks v11a v of the V'members '10a andfdependbetween the sameinto contactV with the transverse centering strips V26, saidV members 28 also projecting upwardlyy bevondl the blocks or their 'equivalents 116. The members 27 and 28 are properly'cut to it in their respective places and the parts are so proportioned that in practice a space of approximately two inches exists between said :members and the' respective I-beams 24 which'will appear Y A, horizontal een! 29 Vrestsfupon and Vbridges betweenthe blocks "orftheir' equivand is 'so dimensioned asto fit 'be-VVV tween and lie flush with the uprightmem' .With this arrangement the strips 256 and '.1 26 and the members 27, 28and 29 define and Y provide molding surfaces whereby the cion-v crete is moldedv inthe form of an arch the'floor. Y v

LThe support further comprises clampingV members30 having one end formed as hooks the'o'utside beams 24?,"said members 30 ly# ing in: Asurface engagementy with' and prof beyond said beams 24b as shown Fig. 4. Thev clamping members 30 are provided witha pluralityof holes 32 forad-'V justably Aaccommodating the screw-threaded endsvof suspending'members 33, whichmare connected withV said 'members V30 yby'rneans "of 'nuts y34and depend therefromA as Ashown Y in Fig. 4. The lower ends of the suspend-Y ing members 33 are formed'withtransverse continuations 35 arranged to support cen-V tering strlps 36 similar tothe strips 25 and 26; upright centering members 37 are located upon the strips 36 and'in coperation to'the outside beams 24b as shownin ig. ,4.

the member required to take care of the particular floor in -question and the-centering has been properly positioned thereon, the concrete Vis applied or oured in the cus tomary manner, and in su cient quantity to cover the centering members 29 and to fill- Vthe channels between adjacent side center After the supports Ahave beenfset up in Atherewith form molding troughs ad`acentY i ing members 27 and endcentering'members Y 28, the bottoms of which channels are de fined by the centering stripsV 25 and 26. Be-

cause of the spaces existing between these side and end centering members Aand the re'- spective I-beamsthe concrete passes freely around said VI-beams so as to 4incloseV the Y same asysh'own in Fig. 4. The concrete is also filled inthe troughs formed Vbythe cen? tering strips 36 and centering'members 37 adjacent to the outside beams 24b .inl theV manner indicatedV in Fig. 4. g Y

* After the' concrete has become properly Yset the centering is removed in the following manner, theY sequenceV of operationset forth'l being capable ofl variationin accordance Vwith Ycircumstanceszandv personal.''de-,V

sires.: Thebolts20'and 20% and'nuts 21 and 21EL are loosened Vtorelease the main slidesV 13 and 13u and the auxiliary slides17 and,V 17

'which asaV result slide downwardly'upon the members 10 `and 10a thuslowering the centering` Astrips' 25"V and 26 Vand the horizontal centering member29 to a position below the concrete work and completelyv 'free therefrom, asfshown in Fig. 4,' the side ycentering membersY 27 and end Vcentering mem-l bers 28 remaining position upon Vthefhools 11 vand 1 1?.V centering member 29 andv the strips. 24and 25 rmay'now, be dismantled' andl readily :removed from'the supports:

Ywithout injury` either to the ',centcringf,'theVV Vsupporter to the'concrete. After thisstagehas been reached the v.bolts 2O maybe 'completely ire-movedv to disconnectthe mainsl'ides Y 13V 'from the members 10, thus making 'itpos' sible to'remove th'e'unitsl consisting offlthe main slides 13 and 13a, the members `10?* and the auxiliaryjslides 173;1becau`se ofthe pres`Y ence of thesleevesf22, which'remainjembedded in the "concrete,"the hooks511t ofthe membersV 10, maybe easily Vwithdrawn with# out hindrance bysaidconcretehus releasing the endrcen'tering members 28 which/may be removed at. this zstage Aor later; 1t' willfbe understood vthat the removal ofA 'the nbolts 2() releases also the (auxiliary, .slides .'17 *from the; members'lO, which slides 17V may "thus alsojberemove'd, thusleavingfonly 'thememi iso members 30 as will be apparent. Should any of the centering, because of adhesion to the concrete, fail to follow the slides as the latter are lowered in the manner described, such centering may easily be loosened and removed after the supports have been removed.

The supports are simple in construction and operation and are easily and quickly set up and readily taken down without injury to the centering which as a result may be used over and over again. The expense of providing new centering for each job is thus avoided and the delay and inconveniV` ence incidental to the fitting ofsuch new centering is done away with; the result is an increase in economy and efficiency and a very considerable saving of valuable material.

Y Various changes in the specific forms shown and described may be made within the scope of the claims without departing from the spirit of my invention.

I claim:

l. A centering support comprising susi pending members arranged in opposite pairs, the members ineach pair extending at approximately right angles to each other, hooks atthe upper ends of said members whereby the latter are suspended, main slides mounted on said members toslide lengthwise thereof, auxiliary slides mounted on said members to slide lengthwise thereof, centering members carried by said slides to define molding surfaces, said' centering members being movable with said slides to an inoperative positionv to permit dismani tling and means whereby said slides are fixed against movement upon said members.

2. A centering support comprising a plurality of suspending members arranged in coperating groups, a device at one end of each suspending member whereby the same may be removably suspended, slides in surface engagement with opposite surfaces of a given suspending member and indepenv dently slidable lengthwise thereof from operative to inoperative positions and vice versa, means on said slides for supporting centering members in predetermined rela pending members. I

3. A centering support comprising suspending members arranged in coperative relation, hooks at the upper ends of said members whereby the latter are suspended, main slides mounted on said members to slide lengthwise thereof, auxiliary slides mounted on said members to slide length- Wise thereof, means on said slides constituting supports for centering and means where'- by said slides are fixed against movement upon said members. Y'

4. A centering support comprising susare secured against movement upon said sustion and locking devices whereby said slides j pending. members arranged in opposite pairs 1 the members in each pair extending, at ap# proximately right angles to each other, slides in surface engagement with the inner faces kof said members and connected to move in unison lengthwise thereof, slides in surface engagement with the outer faces of said members and movable independently lengthwise thereof and means for securing v said slides against movement relatively to said members. f

In testimony whereof I have lhereunto set' my hand. y

' i' hi Y WILLIAM E. S sIsxToN.V

Y mark l Witnesses:

FRED A. KLEIN, JOHN A. KEHLENBECK.

Images