US1472227A - Method of and apparatus for making ornamental roofing - Google Patents

Description

Oct. 30 1923. RAZE? F. C. OVERBURY METHOD OF AND APPARATUS FOR MAKING ORNAMENTAL ROOFING Patented Uct. 30, 1923.

unirse armes ENCE.

FREDERICK C; OVERBURY, OF HILLSDALE, NEW

JERSEY, ASSIGNOR TO THE FLINT- SETTS.

METHOD OF AND APPARATUS FOR MAKING ORNMENTAL 'ROOFINGL Original application filed July 24, 1920, Serial No. 398,681.

application tiled May 19,

T all lwhom it may concern.'

Be it known that I, FREDERICK C. OVER- BUnY, a citizen of the United States, residing at Hillsdale, in the county of Bergen and State of New Jersey, have invented new and useful Improvements in Methods of and Apparatus 'for Making Ornamental Roofing, of which the following is a specication. v

The object of the present invention is to produce an ornamental rooiing material, either in the form of sheets or of strips or slabs, in which each element has its surface lined lor striped.

It is customary, in the manufacture of roofing, to coat the felt (which has been saturated or impregnated with asphalt 'or equivalent water-repellent compound) with a relatively high-melting-point asphalt, and, while the coating is plastic and adhesive, to

partially embed therein crushed flaky slate of any suitable color; and it has been proposed to employ slate or grit of different colors, and to supply'the same in parallel bands or stripes of contrasting colors.

In the present case, I propose to coat the sheet as usual and to apply a layer of crushed slate or grit to the coating, such as ordinarily, but to remove a-A portion of the coating so as to leave zones or bands whichare uncoated and unsurfaoed with the slate or grit, and then to apply a colored plastic water-repellent' material to such uncoated zones, with the result that the surface of the sheet has bands or zones of slate, and intervening Vbands or zones of the colored water-repellent. material. The sheet thus formed may be wound into a roll for shipment, so as to be subsequently laid flat on a roof, or it may be dividedjtransversely into shingle strips or slabs. In the latter case, the strips or slabs are laid in orerlapp-ing rows and simulate shingles or tiles.

On the accompanying drawings,-

Figure 1 represents mo-re or less conventionally and diagrammatically an apparatus for carrying out the process.

Figure 2 represents the comb for stripping the coating from the parallel zones-of the sheet.

Figure 3 represents the rollsfor applying Patent No. 1,418,456. Divided and this 1922. Serial No. 562,197.

the colored plastic coating vto the unooated zones. I

Figure 4 represents the finished sheet. -Referring `'to said drawings, the roll of dry felt is sho-wn at 10, and th@J sheet is dra-wn therefrom through the saturating tank 11, which contains molten asphalt or its equivalent, and thence through squeeze rolls 12 to remove the surplus saturating compound. The sheet then passes under roll 13, over rolls 14 and'15 (the latter being termed by me the -bed roll), then around roll 16, and around roll 17, whe-nce it passes to the set of cooling o-r refrigerating rolls indicated as a whole at 18. As the sheet travels in its tortuous path from roll 13 to the cooling rolls, it is treated as. will now be described. At 19 there is a smooth cylindrical coating roll which dips into a pan or trough 20, to which molten asp-halt is delivered by a spout 21 from a reservoir tank 22. A distributing roll 23 is located between rolls 19 and 14, and receiving the asphalt from the former applies it to and spreads it on the face of the sheet from edge to edge thereof. The asphalt is :soft and plastic, and now, by means of a comb 24, set above the bed roll 15, I plow or wipe olf the asphalt from parallel zones, thus leaving the sheet wit-h uncoated stripes to which slate or grit will not adhere to an appreciable extent. The sheet, with its parallel bands of adhesive coating, is .now passed under a sho-wer of crushed' slate, grit or other crushed mineral material of the desired color-say, blue-black, green, red, brown or the like. tained in a hopper 25 and is delivered thereto from a source of supply indicated at 26 through a conduit 27. In passing around' the roll'16, the slate is embedded in the stripes of adhesive coating, the surplus being returned .tol-the hopper 25, which is made Haring forfj-this purpose. I now apply stripes ofi-adhesive water-repellent material to theg uncoated zones of the sheet, so as to lill'the grooves formed therein by the comb and the application of slate to the coated zones. The water-repellent materlal mayl consist of wax tailings, stearin pitch, asphalt or the like, to which a suitable pig- This vmaterial is con.-

sti

color. Red iron oxide or ground hema-tite ore gives to the material a desirable red or brown color. However, the coating may be of any color such as may be desired, so that a contrast will be made with the color of the crushed slate or other mineral which is partially embedded in the previously coated zones. This second adhesive coating compound is delivered from a tank 28 through a spout 29 to a pan or trough 30, into which dips a roll` 31. Between the roll 31 and that at 17, I locate a roll which has circumferential flanges equal in width to the uncoated zones on the sheet., so that-the plastic compound carried up on the surface of the roll 31 will be transferred to the said previously uncoated zones, as the sheet passes around roll 17. The transfer roll is shown .at 32, and its circumferential ribs or flanges are indicated at 33, see Figure 3.

It will be understood, of course, that the coating compounds in tanks 22 and 28 are kept in a hot molten state by any usual or suitable means, and that suitable powertransrnitting devices are employed to effect the rotation of the various rolls, where such power rotation is desirable.

After being treated as hereinbefore described, and after passing through the cooling rolls 18, the sheet may be passed through a festooning mechanism, indicated conventionally at 34, and then delivered to a machine 35, severed into slabs or strips.

In Figure 2, thev operation of the comb is illustrated. The sheet is indicated in cross section at a, and the first coating at Z). The

' comb 24 has teeth 241, which scrape off by which the sheet is chopped or the coating from the face of the sheet leaving grooves c. rIfhe comb is adjustable toward and from the roll 15.

In Figure 4, the finished sheet is shown conventionally. It has the mineralor slatesurfaced parallel zones d, and the intervening zones e which are surfaced with the colored coating. Vhen the sheet is severed on the transverse lines --m shingle strips or slabs are formed which may be laid toplying a colored plastic water-repellent compound to said uncoated zones.

2.. An apparatus for making roofing ma-` ter1al, which comprises means for app-lying a coating of asphalt to one face of a travelling sheet, a comb having teeth for removing the coating fromspaced parallel zones on said sheet, means for delivering crushed mineral material to the coated zones, and means for applying a colored water-repellent plastic compound to the uncoated zones.

In testimony whereof I have affixed my signature.

FREDERICK o. ovERBURY.

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