US1021847A - Nailing-strip. - Google Patents

Description

S. M.- RANDOLPH. NAILING STRIP. APPLIUATION FILED DEO. 18', 1907.

1;@21847f Patented Apr. 2, 1912.

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Arromlfrs retiran salaries rarest* lorries.

STIXSFIH MARTN RANDOLPH, F OAK IFARK, ILLINOIS.

Martins-snare.

.application filed December 1S, 1907. Seria''o. 106,9?2.

To all whom it 'may concern:

Be it known that I, SMITH MARTIN AIRAN- noLrrr, a citizen vof the United States of America, and a resident of Oak Park, in the 5 county of Cool/rl and State of Illinois, have invented certain new and useful Improvements in Failing-Strips, to loe placed in concrete, grout, or other plastic material which later sets and hardens, tor fastening Wooden it@ floors, carpets, rugs thereto, or in completing or nishing the side Walls, roofs, orthe like,

of which the followingis a specification.

In the use ot' wooden strips for this purpose as is new common, the Wood readily abl5 sorbs the moisture from the plastic material and swells, or expands, the plastic material setting and hardening to the form and dimensionso the strips as thus enlarged. Af-

- ter the plastic material has setl and hardened 5l@ the moisture is gradually evaporated out .of the wood which then shrinks thus becoming loose in its bed or cavity. Such Work is unsatisfactory and various means are emi ployed to seek to overcome the difficulty. Because of such difticulty it`A is customary to lay such strips in a` separate or additional layer of plastic .material on the top of the floor proper, thus adding to the Weight of the floor, it being impossible to employ such a method in the construction ot the door proper as the strips-prevent the operation of the compression necessary to forni a rin and staple door.

The object of this invention is to over- S come the objections above referred to and to this end I employ suitable strips of non-ah sorptive or Water-proof material capable of holding a nail or equivalent'member and which shall he substantially vfire proof. In 40 carrying my invention into operation, I also refer to make suehstrips of such a form' that they will be self anchoring in the material thus preventing,- accidental displacement or the strips becomlng loose With use as Well as insuring suitable compression. It also economizes time in the construction of such work to a considerable extent as will appear inthe description thereof.

-In the drawings wherein like reference characters indicate like or corresponding parts; Figure 1 is a perspective View of a strip suitable for a carpet fastening, showing at one end a sectional View to more clearly illustratemy invention. Fig, 2'is a section of .lloor showing such strips in positionnd a carpet or rug securedA thereto.r

Specification of Letters Patent.

Patented Apr. E, i@if Fig. 3 is a partial sectional vieuT showing a modified torni of strip in position; and Fig. l is a section of a Hoor showing several strips of the torni illustrated in Fig. 3 in poe0 sit-ion. Fig. 5 is a detail perspective View of a pair of strips showingl the same nested together.

In the 'form shown in, Fig. l, A, B illustrate a nailing strip comprising' a suitable c5 metal form or shell a into which is placed a porous or penetrable material f and with rivets l) placed at suitable intervals to bind the `parts together. The end indicated in a is preferalily constructed with the shell eX- tended slightly so that the end ot' one strip may be positioned or nested in the opposite end of the other strip thus connecting the two firmly together when extended a considerable distance across the building. The po- 25 rous or penetrahle material maybe of such construction as desired so long as it is of a nature that will. readily receive a tack or nail and thus maintain a carpet or other part in position, the metal casing a being` suliicient's@ to prevent the material from .absorbing the moisture from the surrounding plastic material to an extent that would interfere with its office. In practice I have used a composition of sawdust: with a suitable adhesive ce- S5 ment for holdingthe Whole together in suitable form, paper pulp, strawboard or equiv alent material for the purpose may be ernployed.-

As shown Vin Fig. 2, the strips A, B are elnbedded'their depth in the concrete iloor C, which is reinforced in the usual manner by rods (l a7.. It will be seen that by this construction the strips become a part of the completed construction, plttcedin position at the time of building, and thus become a part of the compression elements in the computation of resistance. It is obvious that this decreases Weight, reduces the cost of constructing -the floor, and at the saine 1GO timeforms a better, iiriner and more coinpact lioor than would be the. case if the floor is lirst completed and then a separate layer of cement, concrete or other material is laid .upon the top thereof in which the usual M5 nailing strip may be embedded.

In the form shown in Fig.y 3, the strip is formed without the addition of a metal shell or inclosing member, and is preferably inthe form of thelfrusturnoa conebor 11s .other equivalent form that as before men- 'tioned will he Aself anchoring in the concrete or plastic material as the latter sets and hardens. In the form here shown I have secured very satisfactory results in formingY the strips by means of layers of straivboard cemented together under heavy pressure and coated with a suitable Water-proof cement. The cement I have employed is that well known to the trade as lt, I, W, a material manufactured by Dr. Toch and Which. I have found sufficient to resist the absorption of moisture from the surrounding cement or plastic material. I have also lsecured very'satisfactory results with a strip composed of paper-pulp firmly compressed and coated with a suitable Water-proof material as above set forth. I have also in my eX` periments employed a similar compound as that heretofore described where a metal shell is employed. The material T employed in this case consisted of saw-dust, niagnesia, and an adhesive cement all firmly compressed `under a suitable pressure and coated with a Water-proof material as above stated. I found all of these materials to be substantially non-absorbent to the extent necessary in the construction referred to and that they will all hold a nail, tack, screW or other holding device to a sufficient extent for the purposes intended.

As shown in Fig. t a number of the strips shown in Fig. 3 are in place in a tloor as is illustrated in Fig. 2, the strips forming a part of the compression member in computation of resistance. Here again the truss rods ci al are shown theiioor and strips being formed as a complete Whole and Without the additirn of an additional layer of plastic material to hold the nailing strips in place.

As shown in Fig. 1 and Fig. 2 c e are nails or. tacks suitable to hold a carpet in place, and as shown in Fig. 3 g g areJ suitable nails for holding` a floor board in position upon the strips.

It lis obvious that after having thus described my improvement various immaterial modifications may be made either in the composition lof the strips themselves or in their form, Without in any Way departing from the spirit of my inventionl which broadly consists in the use of such strips which are sufficiently non-absorbent to prevent the swelling and shrinking of the strips during the settingof the inclosing,T plastic material, and which at the same time Will be of a composition that Will receive and suitably hold a nail or equivalent member to secure parts to the strips. It is also preferably substantially fire-proof as before set forth, and as before stated is preferably self anchoring.

Having thus described my invention what I claim as new, and desire to secure by Letters Patent is.

The combination with a body of plastic composition, of a moisture absorbent penetrable nailing strip embedded in said body, the said strip being protected by a surrounding moisture proof casing.- f

In testimony whereof, I have hereunto signed my name in the presence of two subscribing Witnesses. V

SMITH MARTIN RANDOLPH.

Witnesses BURTON U. I-IILLs,4 CHARLES I. COBB.

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