US1763677A - Falsework clamp - Google Patents

Description

June 17,-1930.V o. o. scoTT FALSEWORK CLAMP 2 Sheets-Sheet l Filed June l, 1928 gnucnfoz M d. M

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atroz nu* g Patented `lune 17, 1930 UNITED STATES ORVILLE O. SCOTT, OEHOUSTON, TEXAS FALSEWORK CLAMP Application mea June 1, 192s. serial No. 282,292.

This invention relates to new and useful improvements in a false work clamp.

One object of the invention is to provide an improved type of false Work for supporting forms, and relates also, and more particularly to a type of supporting clamp employed.

In the erection of buildings having concrete ioors false work must. be erected to floors formed therein. rlhis false work is usually composed of lumber suitably nailed together and which must be left in place until the concrete fioor, supported thereby, has suliciently set to be self sustaining. When the false work is removed the lumber is again used, as the building progresses, in the support of the floors above, as poured into the respective Hoor forms. In nailing the false work together and taking the sameV apart the lumber is necessarily injured and unnecessary labor and time is consumed. It is one of the chief objects of this invention to provide means for securing the false work together which will not require the use of nails, which will render the work more eX- peditious, which will not injure the material used and which will make it possible to remove a great portion of the false Work, for reuse, without waiting for the supported floor to attain full strength. l

Vith the above and other objects in view this invention has particular relation to certain novel features of construction, operation and arrangement of parts an example of which is given in this specification and illustrated in the accompanying drawings wherein Figure l shows a fragmentary side eleva* 40 tion, of false work, partly in section, showing the parts secured together by the novel type of supporting clamp employed, and showing a floor supported by said false work, and

Figure 2 shows a fragmentary bottom plan view of a floor form, showing the false work secured by the clamp, with the supporting posts in section.

Referring now more particularly to the dra-Wings, wherein like numerals of refer support the floor forms and the concreteence designate similar v'parts lin each of the figures the numerals 1 designate the supporting posts, provided to support the false work of which they form apart, and which in turn supports the floor form into which the concrete, in plastic state, is poured to form thejfloor 12.

r'here is a U-slraped yoke 2, which embraces the respective posts 1 and the free ends of the arms of each yoke extend out' beyond the corresponding `post and are provided With aligned keyways 13, to receive the wedge shaped key 4. The edge .of thiskey, adjacent the post, bites intoV the post and secures the yoke against downward move-v ment when the load is placed thereon. There is a bracket 5 secured to the yoke, preferably by welding. The lower end 6 of this bracket is 'fitted through the yoke, and is extended'beneath it and rests against the corresponding post opposite the key a; The upper end 7 of the bracket, is spaced from, and lies parallel with, the post thus provid- .ng a space for the reception of the beams 8. VEach post l will be equipped with a clamp composed 'of the `yoke and bracket above described and secured thereon as stated. These clamps are horizontally aligned so that each beam 8 will be supported at spaced intervals on ythe adjacent row of posts l.

Mounted on the beams 8, and at lright angles thereto, are the joists 9 which rest against the sides of the posts, above the beams, and vwhose upper edges are flush with the upper ends of said posts.

Supported on the upper end of the respective rows of'posts are the cap plates l0 and fitted between these cap plates and with their ends resting onf the corresponding joists are the panels l1.v These panels, ,to-

gether withthe cap plates 10 form the bottom, -or ioorV of the'mould onto which the concrete is'poured. A

When the oor' 2` hasl attainedsuieient strength to support itselfbetween the posts,i` thewedges 4 may be driven out to release `the clamps and the beams 8, the joists 9 and vthe panels 11 removed, without injury Vto them, and these parts ma be then reused in supporting `the Yforms o the floors above- The posts 1 and cap plates l() Will be undisturbed and Will support the floor 2 until it has atta-ined full Working strength and is capable of sustaining construction loads and then said posts and cap plates may also be removed.

While the clamp hereinabove described is shown for the purpose of securing together certain parts of the falsework which supports a concrete floor mould it is capable of general analogous uses, such as scaffolding, as well as in permanent construction.

Vhile I have shown What I now consider the preferred form of the invention it is obvious that mechanical changes may be made therein and equivalents substituted for the parts shown and I reserve the right to make such mechanical changes and 'substitutions as may be comprehended within the scope of the appended claims.

What I claim is 1. In false Work for supporting a iioor mould, a yoke adapted to embrace a supporting post of the false work, said yoke having aligned keyways, a Wedge shaped key, adapted to be driven into said keyWays to wedge against one side of said post, a bracket secured to the yoke, one end of which fits against a side of the post opposite said key and 'whose other end is spaced from said post.

2. A device of the character described comprising a U-shaped yoke having aligned keyways through the free ends of its arms, a wedge shaped key fitted through said keyways, a bracket at the other end of the yoke one end of which is off set relative to the other end.

3. A device of the character described comprising a pair of approximately parallel spaced arms, a connection integrally uniting one end of said arms, a bracket on said connection to engage a support to which the device is to be attached, the upper end of said bracket being extended above the yoke, and being spaced from the support on Which the device is mounted and being arranged to hold a supported bar against the support on which the device is mounted, abutments carried by the other ends of said arms and a wedge member adapted to be driven between said abutments and the facing side of said support.

4. A device of the character described including a yoke adapted to embrace a support, said yoke having aligned keyways, a key adapted to be driven into said keyways to Wedge against one side of said support, a bracket on the yoke which fits against a side of the support opposite the key and olie end of which is spaced from said support when the device is mounted on the support.

In testimony whereof I have signed my name to this specification.

ORVILLE O. SCOTT.

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