USRE862E - Improvement in coating metallic surfaces - Google Patents

Description

oil and rubber, and let" pose'fo'r which 7 it lwas lntended, The metal no other preyious' -preIiaration-, al though it will be found adviwble to from the surfaceany The same process isemployed for all'descriptions of metal which may require to be coated- WM. sn rcnnn AND war. A. BUTCHER,

or PHILADELPHIA, PENNSYLVANIA IMPROVEMENT IN comm METALLIC sugarc s.

Specification forming part of Letters Patent No. 90,691, dated June 29,1858; Reissue No. sea-dame December 6, 1859. r a

To all whom it may concern:

Be it known .that we, WILLIAM BUT HER andWILLIAMJA; BUTCHER, of Philadelphia, in the State of Pennsylvania, have invented a new and useful improvement in the process for coating metallic surfaces ,with a certain composition, hereinafter described, which will' protectsuch surfacesagainst'the action of the usual oxidizing agents, of which-the following isa specification; We use for this purpose a composition, or preparation of indiarrubberor allied-gum and linseed-oil, secured to us. by LettersPatent bearing date-the 15th day of September, 1857 and the object 'of our present-inventionis so to apply the said. composition to metallic-sar faces that it shall adhere thereto. firmly and permanently,- and exclude therefrom the at mosphere and moisture, and all 'otheragents' which usually orgidi'ze metals, and at the same time render the com hard and durable, and not liable to be cracked by the expansion and contraction or the bend-- ingof the metal. i

To make the com position j ust referred, to we take one gallon of linseed-oil and put into it from eight ,to twelvepounds of crude 'india rubber or allied gum, the quantity. being valried, as the eoating is required to be of greater or less consistency, and we then boil the oil in a suitable vessel until -the rubber is entirely dissolved in-and thoroughly mixed with it, the boiling-point of oil being asuitable degree of heat for the purpose. r The process by which we ,apply the composition is as follows: We take the piece of metal desired to be coated and heatit, in an'pven or otherappar'atus suitable for the purpose, to a temperature of about 350,and-then, and while so heated, insertit inthe prepared mixture of I it remain until it .is coated with the preparation to the thickness. required. Itisthen'talien out of the preparation and placed inan oven or other suitable apparatus and heated to a temperature of about 200, and baked therein until its coat: ing 'is properly hardened, and, after it is taken; from the'oven'and cool snfiicientl'y handled it is ready'to be p'ut'to the andI 'pur-i rust or other impurity.

position, wlieh'soapplied,

remove F rio'us articles of metal after they are manufac tured, such as water, gas, and drain pipes, sinks, wash-boilers, and many others which are exposed to the action-of water,- and which are subject to decay from rust, or which may ,be exposed-to the-action of'the weather, such as inetallic roofing-plates, buildings, or iron columns, and'ornaments for brick or other buildings.

-lhe coating, when properly applied, as

herein described, to metallic surfaces that are only exposedto the action of vapo'r or of the atmosphere, and are not subjected to frictional wear'or handling,will remain perfect for a great length of time, so that it is peculiarly applicable to exposed metal-work, such as before named, that now requires tobe frequently painted to protect it from oxidation from atmospheric and other causes to which it might otherwise be exposed, and its application in thisway also serves. to make these metallic works much more durable thanwhcn they are protected by any of'themeans at present in use for that purpose. I We do not claim the composi rubber and linseed oil herein described as making part of the invention herein claimed,

as such composition is secured to us by other Letters Patent nor do-we' claim the appli-,

"cation of all kindsjof water-proof compositions to metallic surfaces, whether with or without heat, .as other compositions-suchas laquering. japanning,'l &c.=have been applied to metals forprotecting them against'the action of oxidizing agents. i What we do claim as ouri sire tosecure by Letters Patent, 1is- The combined process, substantially as herein described, ofcoating metals'with the composition made of india-rubber, or allied gum dissolved; in and combined with linseedoil. in a heated "state,.-in proportions substan tially such as set forth, by first heating the metal to be coated Wai 0ufi350?, applying the g composition to the metal surface while so heated, and then subjecting the metal so coated to about. 200 of heat, substantially as described.-' f f I WM BUTCHER,

. I WM. A. BUTCHER. 'Witne'sses: I I

ANDREwDELA'cY,

GHB.,HARTWELL.",Q

iron Irailings, iron aim ofindia nventi on, andde'