US1374492A - Fusible adherent and method of making the same - Google Patents

Description

'or the sap of various trees, such as the willow tree, or a by-product of these substances and in order to attain such by-product, I

UNITED. STATES;

rem OFFICE,

.LERANK n.- nnvrs'or NEW YORK, 1v. $1., assrenonor om n-t rorRAivcIs n.

oouennnv, on NEW YORK, N. Y.-

FUSIIBLE ADIBEERENT AND mention on Maxine THE SAME.

1T0 Drawing.

To all whom it may concern 1 Be it known that 1,; FRANK H. DAVIS, a citizen of the United States, and residing at New York, in the county of Bronx and State of New York, have invented certain new and useful Improvements. in Fusible Adherents and Methods of -Making the Same, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make. and use the same.

This invention relates to fusible adherents used in securing gold leaf to strips, ribbons, tapes or sheets of paper or other protective material, or in the manufacture of what is known as. mounted or backed gold leaf which is usually made up into rolls of gold leaf tape, such as is shown, described and claimed in a prior patent granted to Davis and Schumacher, Jan. 12, 1915, No. 1,124,869; and the object of this invention is to produce by an improved method a fusible adherent for securing gold leaf'to the paper strip'or tape upon which it is mounted, which will possess all the required adhesive and fusible qualities of adherents of this class now in use but will be free of all greasy or fatty substances that are now 'common in or forming part of fuslble ad- 'pearances of the gold leaf when applied to a suitable backing strip due to the presence of herents thus eliminating shaded or'dull aptoo much greasy or fatty substances in the fusible adherent employed; and a further object of the invention consists in an improved method of producing the desired ad- "herent by treating a suitable product to produce by-products thereof, one of which is used in manufacturing said adherent while the other of which may be diluted and used as a sizing for the gold leaf after it has been applied to, or mounted on, a suitable backing strip in the usual manner, and with these and other-objects in view'the invention consists in a fusible adherent of the class and for the purpose specified, and in the method of producing it' as hereinafter described'and claimed.

My improved fusible adherent may be made from what is known as white shellac,

treat one of these substances, as for example, white shellac by taking one quart of 'white stance appears on the top Specification of Letters Patent. P t nt p 1921 Application filed February 4,.1919. ;S'eria1 No. 274,856.

shellac to which is added two quarts of ammonia'and one pound of table salt. These mgredlentsare placed in a suitable vat'or container and boiled slowly for about seven hours, during which time water is added to the solution at intervals to keep the same in two hours a dark substance'will be noted on the top of'the liquid, this substance is shellac m a very thin and sticky state and 1s skimmed off and'placed in a suitable contalner and forms one of the by-prdoucts of the orlglnal white shellac employed and which 1s hereafter described. The above described operation of skimming the sticky shellac fromthe top of the solution is repeated at about one-half to three-quarter hour lntervalskuntil but little of said subof the solution.

At the end of the period of about seven hours of slow boiling the solution, as above described, a hard substance or'precipitate will be noticed in the 'bottom'of the vat or container, this substance is the principal product and is removed and allowed to thoroughly dry, after which it is crushed lnto the form' of powder in any desired manner. i

After attaining the principal product of"- she'llac .in the form of a hard substance which is made into ,a powder as above. de-

scribed, I use said powder :in forming or .producingmy improved fusible adherent in the following proportions ;3 ounces of the inpowdered principal product of shellac form; 1 gallonof benzin.

In producing the-desired solution, the above proportions of the powdered product of shellac and benZ in-are placed in a suitable double boiler and heated' u'ntil all of the solid orpowdered "substance has been thoroughly dissolved by the benzin, and this produces the fusible adherent which I use 'in'attaching gold leaf *tofafstrip'or sheet of suitable paper, and this product while having the required adhering'qualities is free from all greasy-or fatty substances which tend to discolor or effect th brightness'of the gold-leaf. '1' i In'the operation of applying or attaching gold leaf'to: one face of a strlp or sheet of paper, the fusible adherent produced in the manner above described which is constantly kept in a heated state, is applied to the face of the strip or sheet of paper, after which the gold leaf is applied to the fusible adherenton said strip in the usual manner and r is then allowed to dry.

I also preferably use the first named byproduct of the shellac consisting of the thin sticky shellac substance, which is skimmed from the top of the shellac solution as a size or sizing by diluting it with a predetermined amount of alcohol, and this solution is applied to the face of the gold leaf when the fusible adherent for connecting the same with a strip or sheet of paper is dried. From the foregoing it will be seen that both the by-product and principal product are used in the manufacture of mounted or backed gold leaf, but it Will also be understood that my invention is not limited to the 7 gives the best results.

In the use of a strip or sheet of paper to one face of which gold leaf has been attached by my improved fusible adherent as well as the shellac sizing formed by the by-product of shellac above set out, in the gold leafing of leather goods of various kinds and classes, paper, cloth or other surfaces, by the use of what is known as hot dies or stamps, the gold leaf will be freed from the strip or sheet of paper to which it is attached by reason of the fusible adherent employed, and the sizing on the face of the gold leaf will be rendered plastic whereby the impressions of the die, or the figures thereof, will transfer corresponding impressions or figures of the gold leaf onto a suitable surface, and will adhere tosaid surface by the heated sizing on said portions of'gold leaf. '50,

' method of transferring the gold leaf from a strip or sheet to which it is attached by my My invention is not limited to any specific improved fusible adherent, as this may be performed in the usual or any desired man ner, and while Ihave described one method of producing a fusible adherent which will have all the desired qualities of adherents'of the class specified but which is free from greasy or fatty substances, from one product namely shellac,- it will be understood that my invention is not limited to thisspecific method or product as I have,found that some otherresinous substance may be treated to produce a product which would have the deslred adherent qualities as well as the fusiblequalities as the hereindescribed fusi ble adherent, and again my invention is not limited to the specific proportions or amounts of the various ingredientsemployed in the production of my fusible adherent, and various changes in and modifications of these details of my invention may be made,

-puI11'lposes herein described.

aving fully described my invention,

what I claim as new and desire to secure by Letters Patent, is

1. The herein described method of-'producing a fusible adherent which consists in first treating white shellac to obtain a principal product thereof by mixing one quart of shellac with two quarts of ammonia and one pound of salt and boiling this solution until a hard product in the form of a sediment is obtained, separating said product from the solution, drying the same and then crushing it into powder form and mixing three ounces of the powdered product of shellac with one gallon of'benzin, substantially as described. I

2. The herein described method of :producing a fusible adherent and sizing used in the manufacture of mounted gold leaf which consists in first'treating white shellac to obtain a by-productand principal product thereof by mixing one quart of shellac with two quarts of ammonia and one'pound.

of salt and boilingthis-solution to obtain a sticky liquid by product which is used as a sizing and a solid product, separating the last named product from the solution, drying the same and grinding it into powdered form,and mixing three ounces ofsaid powdered product of shellac with a gallon of benzin to form the fusible adherent;

3. The herein described method 'ofiproducing a fusible adherent and sizingused in the manufacture of mounted gold leaf which consists in first treating white shellac to obtain a by-product and principal product thereof by mixing one quart of said shellac with two quarts of ammonia and one pound of salt, boiling this solution to obtain a sticky liquid by-productwhich is used as a slzing and a solid product, separating the .last named product from the solution, drying the same and grinding it into powdered form, mixing three ounces of said powdered product with a gallon of benzin to form the fusible adherent and diluting the first named liquid by-product of shellac in alcohol to form the desired sizing. 4

Y ducing a fusible adherent adapted for use in the manufacture of mounted gold leaf,

which consists in boiling shellac with a suitable solution of sodium chlorid in ammonia until a precipitate is formed on the bottom of the vessel and removing said precipitate, said precipitate when dried, crushed and dissolved in a suitable solvent forming said fusible adherent.

5. The herein described method of producing a fusible adherent and size adapted for use in the manufacture of and use of mounted gold leaf which consists in boiling shellac wlth a solution of sodium chlorid' in ammonia, removing from time to time the-scum formed on the surface of the liquid and said'scum when dissolved in a suitable solvent forming the said size, thereafter continuing the boiling until a precipitate is formed on the bottom of the vessel and removing said precipitate, said recipitate when dried, crushed and dissolve in a suitable solvent forming the said fusible adherent.

6. The herein described method of producing a fusible adherent for use in the manufacture of mounted gold leaf which consists in boiling shellac or equivalent resinous product with a solution of sodium chlo-' rid in ammonia until a precipitate is formed in thebottom of the vessel, separating said precipitate from the solution, then drying,

crushing and dissolving the same in a su1table solvent to form said fusible adherent.

7. A fusible adherent of the class described derived from shellac orequivalent resinous product by boiling said product with ammonium hydroxid and sodium chlorid solution until a precipitate is formed, free from greasy or fatty substances and having fusible properties suitable for transferring gold leaf from its backing to the object upon which it is to be attached without discoloration of said gold leaf.

In testimony that I claim the foregoing as my invention I have signed my name in presence of the subscribing witnesses this 3rd day of February, 1919. I

FRANK l-I. DAVIS.

Witnesses:

C. E. MULREANY, H. E. THOMPSON.