US1465539A - Cementitious sleeper or the like - Google Patents

Description

Aug. 21, 1923.

G. ATTERBURY CEMENTITIOUS SLEEPER OR THE LIKE Filed June 8, 1921 anoewloz msvavmflrrmaunr Patented Aug. 21, 1923.

* essee enosvnnon ATT RE RY, on NEW YORK, N. Y.

omunnrrrrrous SLEEPER on, THE LIKE 1;

Appiicationnfiled June 8,

ToaZZ whom it may concern .7

Be it known that I, Gnosvnnon Arma- .BURY, of-the city, county, and State of New York, have invented certain new and useful 5 Improvements in Cementitious Sleepers or the like, of which the following is a disclosure.

My invention relates to nailing blocks, sleepers, grounds, or like articles of .cemen- 1 titious material.

It has heretofore been proposed to use nailing blocks of cementitious materials, but such articles of composition suitable for nailing into have proved undesirably brittle and the breakage has been such where it has been attempted to useflthem, that in spite of their many acknowledged advantages, cementitious nailing mixtures have been restricted to blocks, leepers or thelike cast in position for use, or to continuous sheets or lay'ers,also cast' in place, a practice which delays construction, introduces undesirable moisture and has otherdisadvantages. V 1 y r A second obstacle to the use of cementitioussleepers or like articlesf has' been 3 that they did not bond securely enough to the mortar used between the sleeper and constructional floor or backing. j g I One object of my invention is to provide precast nailing blocks, sleepers, grounds, furring strips and like articles of cementitious material which shall be sufiicientl rugged to minimize breakage in use. A further object of my invention is to provide articles of the character mentioned which shall form a secure'bond with the mortar used between the individual articles and the constructional backing therefor.

The novel features of my invention are pointed out with'particularity in the appended claims.

The invention itself. however, 'with further objects and advantages ,u will best be 45 understood from the following description taken with the accompanying drawing in which: i

Fig. 1 is a sectional view ofa portion of av concrete constructional floor having a sleeper according to my invention thereon,

Fig. 3 is a section of three sleepers of-the 1921. Serial 110,475,990. I

form shown in 'F igs. 1 and 2, piled oneon top of the other.

Fig.4 isa perspective according to my invention, but of diiferent form from that illustrated in igs. 1,12

and 3. V

view of a sleeper Fig. 5 isa perspective view a sleeper according to my invention but of still another form. I

Fig. 6 is a cross section of stacked sleepers having thesame form of reinforcement as thatof' F igs. 2 and 3, but the cementltious material of which presents a different outat an angle to the base 5 of sleeper 1 and wires 4 are bent so that alternate portions thereof lie within and alternate portions without the body of'the'sleeper. The upper corners. of sleeper 1, are beveled to prevent splitting and reinforcements 4 are preferably so placed that they are parallel'to 'such' beveled surfaces 6,'the external portions of members 4 being, moreover, on the outside of planes through corners 7 and perpendicular to base 5. This arrangement ofwires 4 permits the stacking of sleepers 1, as illustrated in Fig.3, with the flat bases-5' against flat tops 8. a

In using sleepers such as 1, they are preferably" forced into the mortar bond 2 soheld securely'in'place by the engagement between the wire 4,0r like members,-and

the bonding material 2.

, Itwill be seen, also, that wires 4, extending as they do longitudinally of sleepers 1 and being embedded therein at intervals, not only serve as bondsor anchors between the sleepers and mortar but reinforce the sleepers longitudinally. Thewires 4;are,' 7

"however, readily cut at points 'where they are external'to the cementitious material of the sleeper and the sleepers may consequentembedded in the body of the sleeper.

ly be cast in long lengths and the Wires 4 cut and. the sleeper broken into shorter pieces as desired. The wires 4 thus serve as combined reinforcing and bonding members while permitting ready division of cast sleepers into such lengths as may be desired. I find sleepers ofthe type illustrated in Figs. 1, 2 and 3 are suiiiciently rugged for all practical purposes, suffering small breakage in use or transit and occupying a minimum of storage space. V

The sleeper 1 illustrated-in Fig. 4', is provided with reinforcing and bonding members 9 which extend; transversely of the sleeper, members 9 being in the form of partially closed loops, the ends of which are embedded in the sleeper 1*. Members 9 do not add to the longitudinal strength of the sleeper, but increase its transverse strength.

However, the longitudinalstresses arethose' which most frequently break an unreinforced sleeper, so that the bonding or anchoring function of members 9 is the most important. In Fig. 5, I have illustrateda sleeper 1 provided with. a reinforcement 10 in the form of a wire mesh or grating bentinto substantially trough or channel shape, and having the edges of'the trough or chanfiiel inforcement 10'adds both longitudinal and transversestrength to the sleeper as well as actiiw as a bonding or anchoring'means.

In Fig. 6, I have illustrated aL sleeper 1 according to my invention, the bases of which are inclined outwardly and upwardly from the longitudinal centre line of the sleepers, as indicated ate. The efi'ect of the; bot-tom or base construction just described is that full bedding of the sleeper in the. bonding. mortar is ensured at the centre of the sleeper, this being the most important point at which to have a proper backing for the sleeper. The reinforcing andibonding member 4 illustrated in Fig. 6 in connection with sleepers 1? are of the same general form as members 4 illustrated in Figs. 1. and 3; but invFig. 6:.the members 4 of any sleeper 1 having their farthest projectingportions in the same plane as the projecting centre line or portion 15 of the cementitious portion of the sleeper. Sleeper 1 can hence be piled or stacked, as illustrated in Fig. 6 in a compact manner and Without danger of, damageto the anchor members 4*. In this form of the invention, hQWever, it; is not necessary. that members 4 of a given sleeper 1 be spaced apart a distance equal to the width of the top.L of such a sleeper, since members such as 4 may restwhen the sleepers are piled on the top 7 ofthe next lower sleeper without requiring additional-space. It will be: noted, also, that in the; structure of Fig.- 6, I have arranged the bonding members 4 'of a given fine two parallel planes permitting the nailv ing members of different types to be stacked as illustrated in Figs. 3 and 6.

Members 9,- Fig. 4, and structure 10, Fig.

5, both cause the'sleepers to occupy more I space in storage than members 4, Figs, 1, 7

2,3 and 6.

A nailing member aecordingto my invention may be made satisfactorily from the composition disclosed in my prior Patents Nos. 1,140,559 and 1,163,060,'but I do not limit myself to this.

It will be seen that sleepers or-like articles according to my invention arerugged, firmly bondable, rot-proof, fire-proof, and convenient in use.

l/Vhile I have disclosed the struction according to my invention, I do not wish tobe limited to the details of my disclosure herein except in sofar as such de tails are essentialv to thevalidity of the appended claims.

Having thus. described my claim: I

1. A precast cementitiousnailing member having a combined metal reinforcing and anchoring means partly embedded in the cementitious material of'the member. 7

2. The combination of a precast cemeninvention, I

titious nailing member, and metal members reinforcing the cementitious material'of'said nailing-member, said; metal members projecting without said cementitious material and thereby being adapted to act also. as anchors. V

' 3. As an. article of-manufacture a. cementitious nailing-,memberprecast independently of the structure Withwhich it isv adapted to be used and having reinforcing mean to prevent-breakage in handling, parts. of said means being embedded in. said member and parts projecting therefrom.

4, A ce'mentitious nailing member precast separately and independently from the structure with. which it; isintendedtobe used,

and combined metal reinforcement and, anchor partly embedded therein.

5. A precast; cementitious nailing mem ber, and a: comlcyinedmetal. reinforcement and bond therefor arranged with alternate portions within the surface; of said precast member, the portions of said reinforcement and bond intermediate said" alternate portions extending Without thesur-faceof the cementitious material.

6. A precast cementitious. nailing meme mg Wire therefor, said wire havingalternate portions Within the. surface of'said member, the portions-- of said wire inpreferred con-' her, and a combined-reinforcing and bond termediate said alternate portions extendin without the surface of the cemenv titious portion of the member, said latter portions of the wire permitting ready severance of the wire if desired.

7. A precast cementitlous nalllng member having a combined metal reinforcing and anchoring means partlyembedded in v the cementitious material of the member,

the top and bottom of the complete article defining parallel planes, permitting ready stacking.

8. A.- precast cementitious nailing memher, and a wire adapted to act as a combined reinforcing and bonding means, said wire having alternate portions'embedded in said member and having portions intermediate said alternate portions projecting from the rial of said member and said member being spaced apart a distance at'least equal to thewidth of the face 7 of said 7 member opposite said first men- 'tioned face.

10. A relatively, long precast cementitious nailing member, a pair of Wires having parts embedded in said member and extending Q 7 longitudinally thereof, said wires projecting from one face of said member at inter vals and being spaced'apart.laterally,'saidmember being bevelled so as to narrow the widthvof the face of-said member opposite said first mentioned face to a distance not greater than the lateral distance between said wires, said wires lying in plane's substantially parallel to the surfaces of the bevelled. portions of said member,

11'. As an article of manufacture a cem entitious nailing 'member precast independently of the structure whichitis adapt ed to be used, and a combined reinforcement and bond therefor, part of said combined reinforcement and bond being firmly embraced and held by the cementitious matetherefrom. r V

GROSVENOR ATTERBURY.

part projecting

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