US1226788A - Insulating floor construction. - Google Patents

Description

ACLEITH.

R Taucnow.

Patented May 22, 1917.

W. D. IVI

ATING FLOO CONS LlcATloN FILED Dec.

'M1 f/H Il .Ari il UNITED sTATEs PATENT oEEToE.

WALTER D. MACLEITH, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE-THIRD TO UNION FIBRE COMPANY, OF WINONA, MINNESOTA, A CORPORATION OF MINNESOTA. A

INSULATING- FLOOR CONSTRUCTION.

Specification of Letters lfatent.

Patented nay 22,1917.

Application led December 7, 1914. Serial No. 875,874.

To all whom t may concern.' f j Be it known that I, WALTER D. MAGLEITH, a citizen of the United States(I residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Insulating Floor Construction, of which the following is a specification.

My invention relates to improvements 1n insulating floor construction, its object being particularly to provide an lmproved insulated construction of flooring and conpart 'of this specification,

Figure 1 is a side view of one corner of a fioor and connected wall broken away embodying my improved features of invention; and l Fig. 2 is a vertical section on line -a of Fig. 1.

Referring to the drawings A represents a side wall of the room, 'andB spaced iioor joists. AIn building up the floor construction strips 2 will first be securedl along the inne'r faces of the floor joists and upon these are positioned strips of insulation 3 supportin the flooring 4. The iiooring 4, as showngbest in Fig. 2, projects above the upper (faces of the floor joists. Upon the flooring 4 is placed a sheet of resilient insulating material 5, the raised position of the flooring'with respect to the joists leaving an air space, as shown in Fig.l 2, between the joists and insulating material. Loosely laid upon the top of the insulation 5 is the expanded metal 6. I then pour upon the expanded metal 6 a composition layer 71 inv A a soft condition and of such a character that contained heavy matter will sink and form a solid mass embedding the expanded `"metal while the top of the layer willtbe l ,lighter and resilient.

I preferably use in lforming this layer a composition of cork,

sawdust, sand, cement, and alum mixed in.

waterlgAs shown Itrowel the mixture up along the side wall, covering the layer of material with suitable covering 8 as of linoleum.

The operation of the resilient insulation 3 and 5 with the air space above the joists 60 and the particular character of composition l7 result in making the oor soundproof to the maximum degree. I have found when heavy weights are dropped upon the floor the resilient top of the composition layer 7 65 becomes slightly indented, and the strains are thrown out mostly in a lateral direction above the hard, more solid bottom of the composition layer. The expanded metal anchors and makes more solid and firm 'the 70 lower hard portion of the compositionlayen I have found avery small amount of the shock or noise passing through the composi- .tion layer, and .what little does, is taken up by the insulatmg materials and the air spaces. I thus secure a flooring that is essentially soundproof and highly efficient for hospital and similar purposes.

I claim as my invention:

1. A floor construction of the class deso scribed comprising fioor supporting joists, flooring arranged between said joists with its upper face standing above the upper faces of thejoists, `a resilient insulating sheet positioned upon said fiooring leaving an air space above the joists, and a composition layer upon said insulating sheet, said composition, layer being relatively, hard adjacent to the insulating sheet and 'relatively i resilient at the top.

2. A floor construction of the class de-l scribed comprising fioor supporting joists, flooring arranged between said joists with its upper face standing above the upper faces of the joists, a resilient insulating 95 sheet positioned upon said iiooring leaving an air space above the joists, a composition layer upon' said insulating sheet, said com'- position layer being relatively hard adja- 'cent to the insulating sheet and relatively 100 resilient at the top, and anchoring expanded] metal embedded in the lower half of said composition. n

3. A floor construction of `the"A class described comprising oor supporting joists, 105

a. space above said joists, and a composition position layer containing relatively heavyv materials which will settle to the lower porf tion of said composition and make the same4 firm and hard and containing materials which will leave the upper portion of said composition material relatively yielding.

4. A floor constructionv of the class described comprising floor supporting joists, flooring arranged between said joists, with its upper face standing above the upper faces of Said joists, a resilient insulating@ f sheet positioned upon said flooring leavinga space above said joists, a composition layer upon said insulating sheet, said compositionlayer containingl relatively heavy materials leave the upper portion of said composition 20 material relatively yielding, and openwork -metal embedded in the lower relatively harder portion of said composition material for the purpose set forth.

ln testimony whereof turein presence of two witnesses. j

' WALTER D. MAGLETH. Witnesses:

',ALRTHUR P. LoTHRoP, H. SwvANsoN.

I affix my signa- 25

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