US2331796A - Metal surfacing material - Google Patents

Description

Oct. 12, 1943. 1 @DELL METAL SURFACING MATERIALS 2 sheets-snaai 1 Filed Sept. 23. 1941 EIGJ ma: 1116.5 RIA E165 n.6

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y METAL SURFACING MATERIALS Filed sept. 2s, 1941 2 sheets-sheet 2 INVENTOB uasuasonsu.

A'rrogzNBYs Patented Oct. 12, 1943 Leslie S. Gdelh Montreal, Quebec, Canada, asl signor ta Building Products Limited, Montreal',

Quebec, Canada Appiication September 23, IMI, Serial No. 4t2-,609'. In Canada Becember` 19,-- 194W 3 Claims'.

This invention relates to the surfacing di metal with granular material in imitation of masonry and has particular reierencerto the surfacing of the' masonry simulating metal corner members disclosed in my Patent No.. 2,255,736.

According to thisI invention, spaced; ci the metal to be surfaced. are covered` by a th-i l: layer ofi enamel in which particles voi grammar material are deeply'embedded to. provide the brick, stone, or tile elements of the masonry simulating surface,V the portions of. lthe'n'letal loetween said areas being painted in .imita-.tiony oi mortar joints. A seal coatingV ci transparent varnish is'then applied over both the granular surfaced areas and theintervening painted mortar joint simulating areas. The seal coating assi-sts in holding the particles of granular' material in place and also provides a protective: hn winch increases the weatherproo-ilng quali-- ties oiboth thegranula'r surfaced and the intervening mortar joint simulating areas.

Before being enamelled and painted' as de. scribed above the metal is galvanized and is' then subjected to certain degreasing' and phosphating treatments to prepare the surface thereof for the reception oi a coating of priming paint which is applied tti-completely cover the prepared snr# face prior to the application of the enamel and the mortar joint simulating paint. Spaced areas of the applied priming coat are then covered by al thiol; layer of enamel which, is gradually built up to the required thickness by first applying a heavy basecoating oi enamel to the prim-l ing coat at each of said areas andthen super-y imposingA one or more additional coatings of enamel on each of said. base coatings. The thickness of the layers of enamel should be such as to permit the granular particles to be deepiy but not wholly embedded therein when using granular particles of a size between #20 and standard Tyler sieves. As soon as the spaced layers oi enamel superimposed on` the priming coat oi paint are built upto the reauiredthiekness, the granular particles are pressedtherein and subjected to a rolling operation to providesmooth granular surfaces having the component granular particles thereofdeeply embedded in the underlying enamel. Suitable intervals for drying are allowed between the application of the priming coat of paint and the subsequent application of enamel and also between the pressing of the granular particles intol the enamel and the rolling of these particles to provide smooth granular surfaces. Following the rolling of the granular material a suitable interval of lil time is aile-wed' for`V drying -ot'the enamel The1 portions of the priming: coat. exposed the enamel and granular surfaced areas 'are` their painted. with a mortar joint simulating paint ci any desired color such, forY example, as blackor. aluminum. paint which is then. allowed to dry Vfor a suitable interval following which the seal. coat of Varnish is. applied toboth the granular sur faced areas and the intervening painted mortar joint simulating areas Y Varioussteps of the invention as applied'tothe surfacingl of a metal corner member oi the particular shape described in my Y aforesaid co pending application are illustrated in the ac'- cornpanying drawings, in which- Fig. l is a perspective-view of a metal corner member comprising a strip 0in-'letalv bent along its longitudinal centre'4 to provide angu-larly re lated side portions; said strip bei-ng shaped-to provide ar series `of yrelatively wide elevated bric-lt; stone, cr'tile simulating areas which are spaced apart-1 longitudinally ofthe strip by intervening relativelynarrow depressed mortar joint simulati-ngl areas Fig.; 2li is a sectional View of the corner member as it appears after the application 0i the coating oi? priming paint; the plane ofthesection be-ng substantially alongI the line Z-QZ of Fig.`- l;

3` isy aview similar to Fig. 2 but' showing tire corner member as it appears after a thick layer of enamel hasrbeen applied to those areas or the rcoating of priming paint which overlie tire raised or masonry element simulating areas ofthe` metal strip.`

Fig. 4l is a view similar toFig. 3 but showing the corner member as it appears' after the granufarL particles have been pressed into the enamel' Y and rolled flat. A

lig. 5 is a View similar to Fig. 4 but showing the corner member as it appears after the portions of` the priming coat oi' paint exposed be tween the enameled and granuIarsuraCed areas have beenV provided with a coetnrg` of mortar jointsimulating paint. n

Fig. (iis a View showing the corner member as. it appears after the application ofthe seal coat.

Fig. I is a view illustrating the manner in which the granular particles;V are spread.l over; and pressed into the enameled areas ci the corner member priorv to the.Y rolling operation;

Fig. 8 is a View illustrating the manner in which granular particles, after being pressed intov the enamel, are. rolled fiat tcl-provide grooved. grahular surfaces and to embed the granular particles more deeply in the underlying enamel.

Fig. 9 is a view illustrating the manner in which a plurality of corner member sections may be joined together in end to end relation to provide a sectional corner member of any desired length.

Referring more particularly to the drawings, 5 designatesV a corner member comprising a strip of metal bent along a central longitudinal line to provide angularly related side portions 6 and 1 having their free longitudinal edges bent to provide parallel rib-like projections 8, said strip being shaped preferably by a pressing operation so that its outer surface presents raised brick simulating portions A and depressed mortar joint simulating portions B.

According to the present invention the cornerV Water gallrms 100 Soda ash pounds 30 Trisodium phosphate do Sodium silicate pints 10 Whale oil soap (33% solids) pounds 7 After this treatment the corner member is thoroughly rinsed in a tank of clean running water and is then immersed in a phosphating bath which'is prepared by mixing 2D gal. of Lithoform (#32) With 80 gal. of water. This bath is maintained at a temperature between 165 F. and 175 F. and the corner member is removed therefrom when completion of the phosphating action is indicated by cessation of hydrogen evolution from the surface of the metal. This usually requires an immersion period of about one minute.

After being removed from the phosphating bath the corner member is again thoroughly rinsed in clean running water and allowed to dry. A coating 9 of priming paint is then applied, preferably by a dipping operation, to the entire surface area of the corner member including the defining edges of the fastener receiving openings and slots respectively indicated at 8c and 8d. The corner member is then hung up and allowed to drain and dry for a period of at least three days. While this method 0f drying is recommended, it will be understood that oven drying or other methods of drying the corner member may be resorted to. The enamel is then applied in the following manner: A base coat l0 of enamel is first applied to each of those areas of the priming coat which overlies the raised brick simulating areas A of the metal corner member. This base coat of enamel should be as thick as possible and is applied by means of a brush. After being permitted to dry to a tacky condition (which usually takes about l5 minutes) each base coating of enamel is covered by a second coating Il y of enamel which is also applied by means of a brush and is as thick as possible. A thick layer of enamel is thus built up on each portion of the priming coat which overlies one of the raised brick simulating areas A of the metal corner member. The object of applying the enamel in two coats over each brick simulating area A is to enable an appreciable body or thickness of enamel to be built up so that there will be enough enamel to deeply embed the granules which are subsequently pressed therein.

Immediately upon completion of the enamelling operation a mass of granules is spread over and pressed into each layer of enamel by hand as indicated in Fig. 7. After a suitable interval the granular particles which have been pressed into the enamel by hand are rolled well into the enamel by means of a felt covered roller I3 which is passed over the adhering granular material as shown in Fig. 8. Loose granules which tend to stick to the priming coat applied to the mortar joint simulating areas B of the corner member are removed with a small stiff brush. The granular surfaced corner member (see Fig. 4) is then allowed to dry for a period of approximately 1 day. Following this the exposed portions of the priming coat of paint which overlie the mortar joint simulating portions B are covered by a coating or layer i4 of mortar joint simulating paint which is allowed to dry for a period of about 4 days. After the Amortar joint simulating paint has become completely dry a coating l5 of clear finishing varnish (see Fig. 6) is applied over both the brick and mortar joint simulating areas of the corner member. As previously stated, this Varnish coating assists in holding the granular particles in place and also provides a protective film for both the granular surfaced brick simulating areas and the painted mortar joint simulating areas. Four days is usually allowed for drying the varnish coating after which the corner members may be packed for shipment.

Corner members surfaced in accordance with this invention may be made in sections of any suitable length adapted to be joined together in end to end relation as indicated in Fig. 9, As here shown adjacent corner sections may be joined together in end to end relation with the upper end 8a of each section overlying the lower end 8b of the next upper section. When the corner members are thus assembled on the corner portion of a building they are fastened in place, as described in my co-pending application Serial No. 271,837, by means of suitable fastening members which are passed inwardly through the fastener receiver openings 8c provided along the centre line of Veach corner member or corner member section, the head of one of said fastening members being indicated at I6 in Fig. 9. Each corner member section, in addition to being provided with the openings 8c, is provided, in the upper end portion 3a, with an elongated slot 8d.

When two corner member sections are assembled as shown in Fig. 9, the slot 8d, provided in the upper end portion of the lower section, overlies the opening 8c provided in the lower end 0f the upper section. One of the fastening members I6 is then passed through the slot 8d and the underlying opening 8c to fasten the overlapping portions 0f the corner member sections in place in the same manner as described in connection with the fastening members disclosed in my prior application. The slot 8d permits such relative longitudinal adjustment of the corner member sections as may be necessary to bring Ythe brick and mortar colored areas thereof into proper alignment with the brick and mortar colored areas of the siding sections over which the corner members are applied.

Having thus described my invention, what I claim is:

1. A masonry simulating building unit comprising a metal member having spaced, elevated areas thereof covered by thick layers of enamel in which particles of granular material are embedded to provide masonry simulating elements, the areas of the metal member exposed between the elevated masonry simulating elements being painted in imitation of mortar joints and a seal coating of transparent moistureproof material covering both the masonry and mortar joint simulating areas of said member.

2. A masonry simulating building unit comprising a strip of metal bent along its longitudinal centre to provide angularly related side portions, said strip being also shaped to provide a series of relatively Wide elevated areas spaced apart longitudinally of the strip by intervening relatively narrow depressed areas, each of said elevated areas being covered by a thick layer of enamel in which granular particles are held to simulate masonry elements, the depressed areas of said strips being painted in imitation of mortar joints, and a sealing coating of transparent moistureproof material covering all of said masonry and mortar joint simulating areas.

3. A masonry simulating building unitl comprising a metal member shaped to provide a series of relatively wide elevated areas'spaced' apart longitudinally of the member by intervening relatively narrow depressed areas, a coating of priming paint covering the Weather side of lsaid elevated and depressed areas, relatively thick layers of enamel covering spaced areas of the priming coat overlying the elevated areas of said member and having particles of granular material partially embedded therein to simulate masonry elements, a coating of mortar joint simulating paint applied to those areas of the priming paint which are exposed between said ma-Y sonry simulating elements, and a seal coating of transparent, moistureproof material covering all of said masonry and mortar joint simulating areas.

LESLIE S. ODELL.

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