US 979628 A
Description (OCR text may contain errors)
P. WRIGHT J. WA'LMSLEY. H1003 SLBEPEB ANGHOBING AND BPAUING' DEVICE PUB OONUBETE. APrLIoATxoB rmjm hun. a, 1910.
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FREDERICK WRIGHT .AND JOSEPH WALMSLEY, OF TORONTO, ONTARIO, CANADA.
FLOOR-SLEEIER ANCHRING .AND SPACING DEVICE FOR CONCRETE.
Specification of Letters Patent.
atented Dec. t t.
Application filed 'March 3, 1910. Serial No. 547,153.
is to devise a simple, cheap and eliicient means, whereby sleepers may he securely spaced and held in the concrete, so as to forni a solid and rigid grovinlwork for the wooden flooring which is superimposed there upon.
Our invention consists ot' a metal strip having a series of prongs struck up from tthe same preferably in pairs at equal distances a )art such striis beine' arranged oarallel i is i: l
` Figure l, is a perspective view of a portion of a concrete bed upon which a [iooring is to be laid, the upper layer of concrete being mostly removed to show the positioning oi? the strips. Fig, 2, is a somewhat similar view showing the sleepers held in place byI the prongs being lient over theml and seeuredto them. Fig. 3. is a longitudinal section. Fig, 4;, is an enlarged perspective detail of portion otra strip.
In the d awings like letters of reference indicate corresponding parts in each ligure.
A is the bed ot' concrete, which is iii-st laid and upon which strips B are placed. Each strip B has formed orstrueh up out of the saine prongs B arranged in pairs close together, the one prong of the pair being struck up reversely to the other prong. 0f course, we may not find it necessary to strike up two prongs, but onlyone prong but the two prongs will in our judgment form a more secure ineans ot fastening the sleeper. The sleeper we designate C.
The prongs are first bent up as shown in Fig. 4t, so that the sleepers may be readily placed in position and then bent up more to the vertical as shown in Fig. 1. After the prongs have been bent up shown in this latter figure another layer of cement is placed over the strips but allowing the prongs E toY protrude through, such layer a suttieient distance, so that they may he bent over the sleeper tl in the tashion shown in Fie. 2. in this ligure we have, et course, nails for securing the prongs to the layer and the bent ends of the prong." tre preteralily laid adjacentto each other instead of over each other. derstood however that the manner of fastening the prongs to the sleeper or in other words securing the sleeper within the prongs may be varied without departing' from the spirit of our invention as may'also the for mation oi the prongs or the. like out of the metal strip.
When the sleepers are laid they are, of course, laid level and always torni an air space under the ioor, which will prevent dry rot. According to the manner oi? laying the sleepers betere our invention it was necessary to till between them with cinders to maintain 'them in place'and even then the position ot the sleepers was not secure and would frequently vary, so that it was a dii"- licult matter to produce a. true level on which to laythe floor. y
By our invention all such diiiiculties are avoided and the sleepers may be spaced and laid without skilled labor, whi'eli is an important desideratuin. 'there also no difiioulty whatever of the sleepers loosening owing to shrinkage and the level will be always maintained.v
It will also be seen that the strips pass through the concrete they also form ay substantial reinforcement for the same.
What we claim as our invention is:
A floor sleeper anchoring and spacing device ior concrete comprising a plurality of strips laid in a bed et concrete and having a series ot prongs projecting' through the concrete and located at desired distances apart, and arranged in rows in lateral a'linement, and sleepers extending crosswise of the strips on top ot' the bed of concrete, the said prongs being bent and secured to the sleepers as and 't'or the purpose specified.
FREDERICK WTRGHT. JOSEPH VVALMSLEY. lVitnesses:
B. BOYD, R, GOBAIN.
'Qt will, ot course, be un.