Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS213100 A
Publication typeGrant
Publication dateMar 11, 1879
Publication numberUS 213100 A, US 213100A, US-A-213100, US213100 A, US213100A
InventorsImprovement In Preparing Paper
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in preparing paper and other fabrics and materials for protecting metals
US 213100 A
Previous page
Next page
Description  (OCR text may contain errors)

or manufactured into boxes;




Specification forming part of Letters Patent N 0. 213,100, dated March 11,1879; application filed August 15, 1878.

To all whom it may concern:

Be it known that I, SAMUEL O. EATON, a citizen of the United States, and resident of Piermont, in the'county of Rockland and State of New York, have invented certain newand useful Improvements in Preparing Paper and other-Fabrics 'and Materials for Preserving Silver and othenM etals from Tarnishing and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same. i

The object of this invention is to treat paper, cloth, or other fabric or material with such chemicals as will give the fabric or material treated the property of removing from the air such gases as would tarnish silver and other bright metals; and it consists in making a saturated solution of either chloride of zinc, chloride of ammonium, chloride of potassium,- hypochlorate of lime, or bleaching-powder, diluting the same to any desired degree of strength, and then filling the pores of paper, cloth, or wood with this solution, so that this paper, cloth or WOOd may be put around silver-ware, or other metals. of any description, and protect the same from tarnishing by reason of-the gases always more or less present in the'atmosphere.

' Ordinary unsized paper, unmanufactured cotton cloths, unmanufactured or manufactured into bags, &c.; unmanufactured wood, or wood manufactured into suitable boxes, may be soaked in this solution, which 1 generally dilute to one-quarter of its original strength, until the pores of the paper, cloth, or wood are well filled, then, when dried, the paper bag or'box is finished and ready to wrap or receive the silver or other metal which it is designed to protect from the discoloring action of the atmosphere or gases contained therein. I g It is well known that there are at alltimes claim as new, and

mingled with the atmosphere various gases, mainly sulphureted hydrogen, which, coming in contact with silvcr,-'t'arnishes its surface.

The dbject of this invention is to interpose between-the silver and -the-atmosphere some substance which will neutralize such deleterious gaor gases, and render it inert, so'far as its ac on on silver or other metals is concerned. This I have accomplished with the solutions named, and in the manner herein set forth.

The substances I use in preference to the others are chloride of zinc, and chloride of ammonium; and I aim to impregnate the paper, cloth, or wood, so that the paper, cloth, or wood shall hold as much of the substance as it can contain without attracting too much moisture. If it contains too great a quantity, the paper, cloth, or wood will not dry. They will dry and retain enough of the neutralizing substance, however, to neutralize all the gases that will, penetrate the pores of the paper, cloth, or wood.

Having thus described myinvention, what I Patent 01. the United States, isy 1. The method herein described for preparing paper, or other fabric or material, so as to render the same suitable for protecting metals against tarnishing, consisting in impregnating the fabric or material with a metallic chloride or equivalent compound, as set forth.

2, As a new article ofmanufacture, paper or other fabric impregnated with chemicals, substantially such as described, as and for the purpose set forth.

In testimony that I claim the foregoin g as my own I aflix my signature in presence of two witnesses.

SAMUEL (l. EATON. Witnesses: I


desire to secure by Letters

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2512949 *Dec 22, 1945Jun 27, 1950Nox Rust Chemical CorpCorrosion inhibitor for metals
US2755167 *Mar 17, 1952Jul 17, 1956Kaiser Aluminium Chem CorpArticles and methods for use with metal surfaces
US4490880 *Mar 14, 1983Jan 1, 1985Thompson William EWindshield wiper
US5413676 *Sep 30, 1993May 9, 1995ChicopeeCellulosic fiber of improved wettability
US6562743Dec 21, 1999May 13, 2003Bki Holding CorporationAbsorbent structures of chemically treated cellulose fibers
US6770576Feb 7, 2003Aug 3, 2004Bki Holding CorporationAbsorbent structures of chemically treated cellulose fibers
Cooperative ClassificationY10S428/923, D21H21/36