US1755457A - Screed support - Google Patents

Description

April 22, 1930. J. s'. OHARE 1,755,457

SCREED SUPPORT Filed March 6, 1928 Z I .i

Patented Apr. 22, 193D unire @sa s QHARE., .cr essere@ Gemeen@ scese@ Sarees@ Application filedy March 6, 1928. Serial No. flf.`

, This inyention relates to improvements in supports for screedfs.`

Isn theconstruotion ofconcrete buildings, it is necessaryto provide screeds Which are sup- 5 ported. from the falsexvork and" held in level position for therypu-rpose of determining the exact thickness of the Cement and for enabling, the Workmen to obtain a level flat surtace. In strictly firel proof buildings, Where cement doors are employed, it is also necessary to provide nailing strips to which, carpets may be attached. These nailing strips are put into place When the floor is poured and inust,` of; course7 be properly positioned and leveled', so that they Will have their upper 'surface' on the` level with the floor surface when theflatterhas been finishedl v It is thev object ofthis invention to produce a simple and substantial support for screeds and: for carpet nailing strips that can be readily attached; to theY strips and which can be driven into the falseworl; for the, purpose of holding. the strips in place. Y

It is the further object of this invention to produce a screed vsupport thaltcan be used with angle iron screeds orY with .Wooden screeds and which can also be readily salvaged and used over again it desired. it is the; further. object of this invention to produce a screed support ythat can .be em'- kployed lin connection With the construction of side Walks for the purpose voit holding the Wooden .strips that o'rin the sides of the 'side- Walkiforni. Y f I My improved screed support can be inost clearly described and Will be most readily understood When reference is had to the ai? cknnpanying drawing in which the preferred embodiment thereof has been il.lus.trated,and

in which: i i u 'I is a longitudinal section through a vdoor falsework s hdwing'an angle ironiscreed supported therefromhy, means of my fimproved screed suppdrts v l gQQs a section taken on line 2-2, Fig. l and shows the manner of securing the screed support to the angle iron screed; f

Fig. 3 is a perspective view of my screed support and shows a portion of the screed by means of dotted lines;

. ture..

Fig. 4 is section through a carpet nailing Strip, Showing my .imrtcysdscreed Support att-ached tc it; Y

Fig. 5 is a perspective View showing the .manner in which. my screed Supe-.Orts can be employed 11.1 conn-factice 'with' sidewalk 'ccnstructions. i i y' Numeral l indicates thc telscyyclk for the vsupport of the concrete door construction.

Thisfalsework` is formed in the usualfvvayby means 0f planks held.. in Place by Suitable supports. As my inventionhas nothing to do .with the exact construction of; the 'falseworln .this has nierely been indicated in a zgjfene-ral Way. The level of the `finished concrete 4floor has. been indicated. by dotted 1icc2 in Eiel- For. theL prrr-Osc cf .enabling the yyO-.lkmcn t0 pour the 'c .oncretethe necessary lthickness Aand to enable them to, torni lgcycl? Surface, it is necessary tcprcyidc scrccds, @1190i which has been indicated by rccrcricc, weeral 3 .in Fs- VV.2, These screeds lnay be made ofangle iron in. thc manner Shown. in Fia 2, er they my b@ niade of a Wooden strip ,lilgethat shoyvn in Eig. 4- As the' Scrccds .are emrlycfl @Illy thuringitlic lcyclfins rrcecss, and can be rcinovedythey are preferably made of angle iron as this is more rigid .than a Wooden screed. After the ccncrctc has' been retired and! properly leveled, and aft-cr thS Obtained a certain. anicuatof ,sct the esta] sicrcccls, together. with the screed Serre-Pecan bc rcmoycd, .after which the. channels lfQrincd by thc. screed are .ill-cd .in by a cement When the scrcccls. are Put into place, they are properly aligned in parallel pesi-tion .and

'ign .onder to facilitate thc. prever .pcsiticaus l of the screeds, rit is necessary that the screed supportsyvhioh arelocated; at the ends of the screed .shall lnserf .than "the intermediate screed suppnrte 'Fig' 1Q the @ed Sflleeld snpncrtshavc been .designated by @merel 5,

.while theintermcdatc supports have (been designated by numeral 6-f The clitcrcccc i11- ,thee engi-'hs ci these. screed .supports ,sheen When thcsuprerts are@ 'be ,rrlplcyed in '.cpinaectioniwith an anglaises Sicrscdldllcyerc in the manner shown.

and 3, from which it will be seen that the screed supports are U-shaped and have parallel side members 7 connected by a flattened end member 8. The end member 8 is provided with an opening 9, for the reception of a flat headed stove bolt 10, which extends through an opening in the screed in the manner indicated. The upper end of one of the side members is also flattened and provided with an opening 11 for the reception of the bolt 12. It is apparent that when the supports are secured to the screeds in the manner in Fig. 2, that they will be held rigidly in place.

When the screed supports are to be employed in connection with wooden screeds of the type indicated by numeral 4 in Fig. 4, and by numeral 13, in Fig. 5, the connecting member 8 is provided with two openings 14 through which the securing screws 15 pass. In every case, however, the end supports must be longer than the center supports in order to facilitate the proper alignment of the screeds. It is evident that screeds like that shown in Fig. 4 can be readily removed from the concrete inthe same manner as the angle iron screeds, but where member 4 is to be employed as a nailing strip for carpet, it is, of course, left in place so as to be available for this purpose.

In Fig. 5 I have shown my improved screed supports employed in connection with the building of side walks. When a sidewalk is to be laid, it is customary to place two two by fours 13 in parallel relation a proper distance apart. These form the sides of the cement blocks and are ordinarily secured to the ground by means of stakes that are driven into the ground along their outer surfaces. If the side pieces 13 are provided with my improved screed supports, 5 and 6, they can be very quickly and easily put into place as the sharp prongs of the supports can readily be forced into the ground. This greatly facilitates the operation of preparing the forms for the sidewalk and also makes it possible to quickly remove the side members 13 for use in other parts of the sidewalk construction.

I want to call particular attention to the fact that my improved screed support is provided with two parallel arms and therefore when it is put into place, it will hold the screed against sidewise motion as well as hold it in a predetermined distance above the false work. Although I have illustrated the supports as having the sides 7 parallel, it is evident that these sides can be spread apart in the manner indicated by dotted lines in Fig. 4. This forms a more rigid support for the screeds but makes it difficult to remove the screeds and screed supports owing to the angular relation of the sides, Wherethe screeds and screed supports are to be removed therefore, it is preferable to have the sides parallel I want to call attention to the fact that the connecting portion 8 has been attened so as to permit the support to be seated more steadily against the screed, and, when the supports are to be employed with an angle iron screed, the upper end of one of the side members is also flattened for the same purpose.

From the above description it will be apparent that I have provided a simple screed support that will greatly facilitate the placing and the removal of screeds such as are used in the construction of concrete floors for re buildings. I also wish to call attention to the combination shown in Fig. 1 in which the end supports are longer than the intermediate ones, as this greatly facilitates the proper placing of the screeds.

Having described the invention what I claim as new is: i

1. In combination, a straight screed, a plurality of supports attached to said screed and spaced apart along one side thereof, the supports nearest the ends of the screeds being longer than the intermediate supports whereby they will come into contact with a flat supporting surface before the intermediate supports thereby facilitating the operation of aligning the screed.

2. A screed support consisting of a substantially U-shaped metal member whose sides are substantially straight and parallel, the ends of the sides being pointed to facilitate their insertion into a supporting surface` the base of said member being formed by a straight portion which is adapted to fit against the under surface of a screed, the upper surface of the base and a portion of one side member being flattened to fit against the sides of an angular screed, said flattened portions each having an opening for the reception of a securing means.

3. A screed for use in connection with the laying of concrete floors and the like comprising,'in combination, a straight bar of angle iron having a plurality of supports secured thereto, the supports each comprising, a metal bar bent at two points into a substantially U-shape, the sides being parallel and pointed, the base which connects the sides being straight and flattened so as to fit against one side of the angle, aportion of the side adjacent the end being also flattened and adapted to fit against the other flange of the angle, said flattened end and side being provided with openings adapted to register with corresponding openings in the screed and bolts eX- tending through the openings for securing the supports to the screed.

In testimony whereof I afiix my signature.

JOHN S. OHARE.

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