US1511742A

US1511742A - Method of preserving wood and wooden structures

Info

Publication number: US1511742A
Application number: US520273A
Authority: US
Inventors: Matthies Friedrich Carl
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-12-06
Filing date: 1921-12-06
Publication date: 1924-10-14
Anticipated expiration: 1941-10-14

Description

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Patented Uct. M, Wfid.

rnrnnnrcn cam. narrnrns, or naunnnncn nus]: menace, GERMANY, assren'on ro enonen EMIL STAHL, or .rnnsnr crrr, new JERSEY.,

and useful Improvements in Methods ofv Preserving Wood and Wooden Structures,

of which the following is a specification.

The object of my invention is to protect wood, such as beams, planks, boards and the like, and wooden' structures, such as scaf folding, floors walls and implements against the destructive efiects ,of deca weather conditions, and materials or fiui sto which the wood and structures may be subjected.-

Many articles of wood and wooden struc tures are left. without protective coverings because of the absence of coverings suited to their requirements, and frequently wood and wooden structures are covered with an unsuitable paint that clogs up the pores of the wood and causes the wood to decay from within. Other protective substances applied to wood and wooden structures are unsightly, ill smelling and dangerous to the health of persons who may have to handle the same. I

My procem prolon the period of usefulness of wood an wooden structures, preserving their utility five or six times the ength at which unprotected wood and wooden structures have remained useful. and my invention presents none of the objectionable features referred to above.

In carrying out my invention the wood is first. given one coat of a more or less concentrated disinfectant solution, preferably ferrosulfate or salicylic acid, and when this disinfectant coating becomes dry I apply one coat over the same of pure mineral oil of a character which is free from gum. The coating of disinfectant is protected from being rubbed or washedofi' by means of the coating of mineral oil, and the disinfectant neutralizes the causes of deca from within or from without the wood, bot

the disinfectant and the oil becoming absorbed by the res of the wood but without clogging t em, since there is no gum or rosin in the oil. The disinfectant is meant to enter the pores of the wood and coat over the surface of the wood between the pores, and the oil not only protects the coatmg of disinfectant and binds the same METHOD OF PRESERVING WOOD AND WOO'IDEN STRUCTURES;

' Application filed. December 6, 1921. Serial No. 520,273.

in the wood but prevents moisture from entering into the pores of the wood, while at the same time the oil does not prevent such moisture as may be within the Wood from evaporating. The oilalso avoids shrinkage of the Wood. The oil may be tinted by aniline to suit such demands as may arise, and I suggest also that an addition of about one-quarter of one per cent of caraway seed 'oil to the. mineral oil will subdue its odor. I have found that 'the best results are attained when the-disinfectant is ferrosulfate or salicylic acid, but I'do not in every instance wish to be limited to these particular disinfectant materials since other chemicals of similar nature may be used in lieu thereof.with more or less satisfactory results.

My invention resides, therefore, .in a method of protecting wood and wooden structures, consisting in first applying a primary coating of disinfectant solution to the wood and allowing this coating to dry, and then applying a coating of mineral oil, free of gum or rosin, over the surface previously coated with the disinfectant. I have found that my invention serves as a reliable protection to wood and wooden structures and is new and of material economic value. My invention prevents decay of the wood and protects the same from the deteriorat ing influences of weather, moisture and many substances which may be brought into contact with the wood.

- A distinct feature of my invention resides in the fact that in accordance therewith the pores of the wood are not filled up or clogged but on the contrary are leftopen so that such moisture as may be in the wood may evaporate, while at the same time the oil used by me will prevent moisture from entering the wood. I treat .any wooden structure with my methodat minimum labor and expense and without subjecting the same to any previous preparatory treat ments such as other preserving processes involve. If the wooden structure to be treated should be a barn door, for illustration, I appl the disinfectant solution to the surface 0 the same by an ordinary brush and then when the wood has become dry I apply the mineral oil to the same by means *ef an ordinary brush. Thus an .person who is able to handle a paint brus may make use of my invention in the protection and preservation of his own wooden structures, wliether doors, window-shutters, Window sills or Stairways. The simplicity, cheapness and ready availability of my invention for individual use are matters of public importance, and these desirable considerations are attained by me by reason of the basic conception underlying my invention and differentiating the same from prior processes which involve expensive treatments and the absolute filling up of the pores of the wood, whereas, as herembefore explained, my invention has for its foundation principle the preservation of the wood without clogging up-the pores thereof and without SubJecting the wooden structures to boiling or other treatments which I consider highly detrimental to the wood and which would ordinarily be impossible of performance outside of expensive factory plants.

What I claim as m invention and desire to secure by Letters atent, is:

1. The process of preserving wood and wooden structures and articles made from wood, which consists in coatin the wood with a disinfectant solution, al owing this coating to become dry and then appl ing, thereon a coating of mineral oil free om gum or rosin, as described.

2. The process of preserving wood and wooden structures and articles made from wood, which consists in coating the wood with a disinfectant solution, consisting of ferrosulfate, allowing this coating to become dry and then applying thereon a coating of mineral oil free from gum or rosin, as described.

Signed at F rankfort-on-Main, Germany, and State of Prussia, vember A. D. 1921.

FRIEDRICH CARL MATTHIES.

this 3rd day of No- 40