US 1909984 A
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Description (OCR text may contain errors)
My 23, 1933. w E. PRINDLE S CREIED HOLDER Filed Nov. 6, 1950 WE Min zi/e www-MW@ @stevie/g1 Patented May 23, 1933 UNITEDl STATES PATENT. OFFICE WILLIAM n. PRINDLE, OF COLUMBUS, OHIO, AssIGNOH To 'rHn v-W VENTILATOR COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO sCRnEn HOLDER Application ledvNovember 6, 1930. Serial No. 493,826.
The present invention is directed to improvements in screed holders designed more particularly for use in connection with cement floor constructions, but is not necessarily limited thereto.
The primary Object of the invention is to provide a holder of this character which can be easily and conveniently applied to the cement floor when the floor isv in a semisolid condition, and when the material sets, the holder will be positively held against disengagement.
A further object of the invention is to provide a screed holder formed from a single blank of suitable gage sheet metal, and one which is extremely simple in construction, durable, eflicient in operation and which can be manufactured at avery small cost.
lith these and other Objects in View, as will appear as the description proceeds, the invention consists in the novel features of construction, combinations of elements and arrangements of parts, hereinafter to be l fully described and pointed out in the appended claims.
Figure 1 is a side elevation of the device showing it in place in the floor.
Figure 2 is a perspective View of the holder.
Figure 3 is a sectional View on the line 3 3 of Figure 2.
Figure 4 is a top plan view of the holder, and
Figure 5 is a View showing a plurality of holders mounted upon the spacing strip employed for inserting the holders in position within a concrete floor.
The holder is formed from a single length of sheet metal of the desired gage and is bent to provide a pair of vertical arms 1, the
lower ends of which being integrally connected by a trough-like member-2. This member has its sides 3 divergingly disposed so that the upper edges thereof will be spaced laterally, whereby the member will be substantially wedge shape in cross section. The ends of the sides 3 terminate in substantially triangular plates 4, the upper edges of which being spaced from the lower adjacent endsV of the arms v1 whereby transverse end pockets 5 are provided which communicate with a channel 6 formed between the sides 3.
It will be Observed that the lowervnr ends of the arms 5 are longitudinally corrugated, as at 7, to impart to the lower ends of said arms the necessary stability, the corrugations extending to the point above the plane of the member 2 so that the arms may be 60 bent parallel =to the member when the holders are engagedA in the concrete floor 8. It is necessary at times to bend the upper ends of the .arms so that the same will be level with the floor to prevent the salne obstructing the passage of wheelbarrows and material during the building operation.
The arms are provided near their upper ends with a plurality of perforations 9 in which securing devices 1'0 are engaged, said v10 securing'devicespenetratingthe screed 11 to which theiloor boards 12 are secured in the usual manner. l f
Since the member 2 issubstantially wedge shape, the-holder can be easily forced into *T5 the Hoor when the material is in the semisolid state, a distance to permitthe arms 1 to extend above the floor surface so that when the screeds are placed betweenthe arms, the upper ends of said arms will be in properposition, after which the securing devices 10 are applied, it being-Of course understood that the screeds are not engaged with the holdersuntil the floor material is set. Owing to the trough-like formation of the member 2, the semi-solid cement will fill the member as well as the pockets 5, thereby positively preventing upward movement of the holders after the cementsets.
f It will be-observed that the arms 1 are 90 formed fromv a pliable material, in this instance Asheet metal.- This permits the arms to be'bent outwardly at their `upper ends as indicated by the numerall. In placing the holders in the soft conc-rete, I first removably nail or otherwise secure the outturned ends 13 tothe under side of a longitudinal strip. By means of this strip the holders are properly spaced and positioned with respect to eachl other, and any desired number of them may be secured in connection with the strip member for the purpose of facilitating and rendering more accurate the placing of the holders in the concrete. After the holders have been properly secured Vto the strip, the latter is placed o-ver the soft concrete and pressure applied to force the holders into embedded relation withinV the concrete. Since the latter is usually soft when this is done, no diliiculty is encountered, the wedge'shaped formation of the lower end of each holder facilitating the insertion thereof. Following the insertion of the holders inthe concrete, .the latter is permitted to harden so as to obtain a secure grip on each holder. Then the board .or strip upon which the holders are originally nailed is rippedV loose from the arms 18. Since the arms have been bent outwardly as indicated at 13 the same will not interfere with ordinary building operations, that is, they will be iush with the upper surface of the ioor and not koffer obstacles vor impediments upon which builders may trip. It is frequently a matter of weeks before the wooden flooring is laid following the insertion of the screed holders. During this interval said holders are completely out of the way by reason of the fact that they are bent downwardly or outwardly to evenly engage the floor. W'hen the. 4time comes to place the screeds and flooring ll and l2, the outwardly directed arms 13 are bent upwardly to assume their vertical positions and to be nailedin engagement with the screeds proper. It will be observed that the alignment of the lscreed holders has been properly and accurately regulated by the fact that such holders are previously propertween the arms and bar producing a substantially I shaped outline.`
4. A screed holder comprising a single piece of sheet metal formed into a strip and bent to U shaped form, the cross bar of the U being straight and thel side arms of the U arranged substantially parallel to one another, the material forming the `cross bar being folded upon itself longitudinally of the barv and transversely'of the material forming'- the juncture between the bar and arms giving the bar an I shaped outline when viewed in plan, and a longitudinally extending strengthening rib formed at the lower ends of said side arms.
In testimony whereof I'aHix my signature.
VILLIAM E. PRINDLE.
ly spaced and aligned at the time they were inserted or imbedded in the concrete.
' Whatis claimed is:
l. A screed holder comprising a pair of arms, a member connecting .the lower ends thereof, said member including convergingly arranged sides, saidmember having pockets at its juncture with the arms.
2. A-screed holder comprising a pair of spaced side arms, a member comprising convergingly arranged sides having terminal triangular plates 'connected with said arms and defining pockets between the arms `and ends of said sides.
3. A screed holder comprising a single piece of sheet metal having suitable width and length, said piece being bent into U shaped form with a cross bar connecting the side arms of the' U straight and arranged at substantial right angles to said arms, the material forming said cross bar being folded upon itself longitudinally of the bar into U shaped cross sectional formation forming a pocket extending the full lengthbetween said arms, lsaid pocket together with the portions thereof located-:at the juncture be-