US1057333A - Method of attaching rubber to metals. - Google Patents

Description

UNITJiiD STATES iigrEN'r OFFICE.

LEO, DAFT, or RUTHERFORD, NEW JERSEY, assroivon T ELECTED-CHEMICAL RUBBER & MANUFACTURING COMPANY, A conr'omrron or may JERSEY.

METHOD or ATTACI-IING' RUBB R To mE'raLs.

Specification of Letters Iatent. Patented Mar. 25, 1913.

diluted to form an electrolyte, in the pro- 1 rality of metals two of which are arsenic No Drawing. Application filed February 17, 1912. Serial No. 678,362. I

-To all whom it may concern: portion of 40 parts of the liquid to 60 parts Be it'known that I, LEO DAFT, a subject of water, which produces tl1e electrolyte at of the King of Great Britain, and a resident a specific gravity of about 1.040. The article of Rutherford, in the county of Bergen, to be plated is then immersed in the elec- I 5 State of New Jersey, have invented a new trolyte and is plated in anyordinary'man- 60 and Improved Method of Attaching Rubber ner. I prefer to use a current of about .6 to Metals, of which the following isa speciof an ampere for each square deciinetre of fication. surface-to be covered,-at a voltage offrom In my pending application; Serial No. 3% to 6 volts. These values, however, are

10 678,361, filed concurrently with this, I have not absolute and may be varied within cer- 65 I set forth a method of causing rubber to adtain limits, as will be obvious to any 'one here to metals, provided said rubber conskilled in the art. The anode I prefer to tains'an excess of sulfur over that required use with this electrolyte is an alloy of to produce vulcanization. I have, however, copper, zinc and arsenic ,in-the following described in said application a method of proportions: Copper 64 parts, zinc 35 parts, 7 producing an electrolyte for electroplating arsenic 1 part. This alloy I prefer to make a surface upon the article to which the by first thoroughly fusing together the rubber is to be attached in theevent that copper and zincin [the proper proportions, said article does not contain the proper conand then adding the arsenic thereto in a stituents necessary to eifect the chemical pulverized form, and thoroughly puddling 75 union between the rubber and themetal; the whole before pouring. The article thus It is to thismethotl of electroplating asurcoated is then cleaned to remove all foreign face with an alloy containing arsenic when substances. The rubber is then applied to combined with the method referred to that it under pressure and is heated to a vulthis application is more particularly dicanizing temperature, say about 286 degrees 80 rected. it under pressure and is heated to a 'vul- Inasmuch as the alloy which is to be canizer, and find that heating for about 40 plated upon the article to which the rubber minutes at a pressure of 40 pounds above is to be attached should contain its metal atmosphere, is usually sufiicient to produce constituents in certain definite proportions, vulcanization of the rubber, and to cause (which, however, may be varied according adhesion of the metal thereto. to the composition of the rubber compound) While. I have set forth above a method of and inasmuch as it is highly desirable to practising my invention which gives good obtain a deposit containing these metals in .results in practice, Ido not intend to conthese proportions with certainty, it is very fine myself to this particular method or to important to so proceed; in themaking of the particularuingredients andproportions the electrolyte that none of its constituent I have set forth, as there are other equiva elements shall be precipitated out of solulent -methods of practising my invention, tion, except to the extent of the excess over and doubtless still other equivalent methods Q the particular quantity desired. To obtain to be discovered by those skilled in the art. 95 these results I prefer to proceed as follows What I claim and desire to secure by Let: in the making of the electrolyte: Iv first ters Patent, is: thoroughly fuse together copper and zinc 1.,The method of attaching rubber to in the proportions of 65 arts of copper and metals which consists in electroplating the 35 parts of zinc. This alloy I then dissolve article to which .it is desired to attach the 100 in a strong oxidizing agent, preferably hot rubber in an electrolyte made from a plunitric acid (specific gravity 42 Baume) I rality of metals one of which is arsenic, obthen neutralize the solution with ammonia taining a deposit containing arsenic and ator other alkali, and add thereto a sufiicient taching the rubber to the surface thus quantity of finely pulverized arsenic triformed, by vulcanization. i 105 oxid, sa about one er cent. This produces '2. The method of attaching rubber to a dark lue, turbid iquid, which I clearby metals which consists in electroplating the adding otassium cyanid; the result being article to which it is desired to attach the a clear ight yellow liquid. This liquid is rubber in an electrolyte made from a plu- 11 o and copper, obtaining a deposit containing arsenic and copper, and attaching the rubber to the surface thus formed, by vulcanization. 3. The method metals which consists in electroplating the article to which it is desired to attach the rubber in an electrolyte made from a plurality-of metals, three of which are arsenic, copper and zinc, obtaining a deposit con-- n in Letters Patent No. 1,057,333;

: specification requiring correction as follows:

a the words and syllable'Falwenhet't. I prefer Correct taining arsenic, copper and zinc and attaching the rubber 'to the surface thus formed, by vulcanization.

In witness whereof I have hereunto signed my name in the presence of two witnesses.

. LEO DAFT;

of attaching rubber to Witnesses:

WALTER S. JONES, MARGARET MAGINTYRE.

It is hereby certified that in Letters Patent No. 1 ,057 ,333, granted March 25, 1913,

; upon the appiication' of Leo Daft, of Rutherford, NewJersey, for an improvement in Methods of Attaching Rubberto Metals, an error appearsin the prinELd Page 1 ,strike out line 81 and insert a W New. 0261-, and that the said Letters Patents should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice. i

- Signed and sealed this 15th day of- Apri1,';A. 1)., 1913.. p p

[SEAL.] 'c. 0. BILLINGS,

Acting Commissioner of Patents.

and copper, obtaining a deposit containing arsenic and copper, and attaching the rubber to the surface thus formed, by vulcanization. 3. The method metals which consists in electroplating the article to which it is desired to attach the rubber in an electrolyte made from a plurality-of metals, three of which are arsenic, copper and zinc, obtaining a deposit con-- n in Letters Patent No. 1,057,333;

: specification requiring correction as follows:

a the words and syllable'Falwenhet't. I prefer Correct taining arsenic, copper and zinc and attaching the rubber 'to the surface thus formed, by vulcanization.

In witness whereof I have hereunto signed my name in the presence of two witnesses.

. LEO DAFT;

of attaching rubber to Witnesses:

WALTER S. JONES, MARGARET MAGINTYRE.

It is hereby certified that in Letters Patent No. 1 ,057 ,333, granted March 25, 1913,

; upon the appiication' of Leo Daft, of Rutherford, NewJersey, for an improvement in Methods of Attaching Rubberto Metals, an error appearsin the prinELd Page 1 ,strike out line 81 and insert a W New. 0261-, and that the said Letters Patents should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice. i

- Signed and sealed this 15th day of- Apri1,';A. 1)., 1913.. p p

[SEAL.] 'c. 0. BILLINGS,

Acting Commissioner of Patents.