US2099571A - Method and means for making a covering for surfaces exposed to the weather - Google Patents

Description

Nov. 16, 1937. w. H. OUTMAN 2,099,571 METHOD AND MEANS FOR MAKING A COVERING FOR SURFACES EXPOSED TO THE WEATHER Original Filed My 29, 1951 2 Sheets-Sheet l WU'LWA .TTORNE Y5 Nay. 16, 1937. w. H. OUTMAN 2,099,571 METHOD AND MEANS FOR MAKING A,COVERI NG FOR SURFACES EXPOSED TO THE WEATHER Original Filed May 29, 1931 2 Sheets-Sheet 2 INVENTOR M/VFRL'D f1 Oz/TM N ATTORNEYSWT/Sbwm Patented Nov. 16, 1931 Q C l 2,099,571

UNITED STATES PATEN ot er,

METHOD AND MEANS FOR MAKING A covnamo non summons axrosrn 110 THE wan-man Winfred H. Outman, Richmond, CaliL, assignor to Certain-Teed Products Corporation, New York, N. I... a corporation ofvlvlaryland Application my 29', 19.31, Serial No. 540,846

Benewedlihy 14, 1937 T is inventi n relates to the pr c s o mak ording to the prior process of Outman, following a covering material for surfaces exposed to th the embedding of the granular surfacing materiah h d m re particularly tounits in th in the portions or sections of the sheet representm of rip made from he t ro flns h v on ing the shingles or other units, to brush out the 5 the exposed surface thereof sections separated grooves by a suitable brush corresponding in 5 by space simulating stripes to simulate shingles width to the width of the groove and intended a or other structural units. to be aligned therewith at a point in the travel of Shingle simulating units out from sheets of the sheet following its delivery from the'place at suitable fibrous material or other fabric and imwhich the granules are embedded in the sections.

- pr ena ci w w terpr fin Weather The material in the groove does not adhere as 10 Sistine m l have here f r n kn wn n strongly to the asphalt at the bottom of the groove various forms. In the manufacture of roofing. as to the fully coatedsections partly because the whether in the form of sheets or pf units such as amount of asphalt remaining in the groove is res i e i Shingle str ps, the surface of the imnduced in the process of scraping as heretofore pregnated felt commonly known as rooflng" practiced to a point where insufllcient coating re- 15 ordinarily is covered with a coating of' asphalt mains properly to bond the individual grains or either on one'side of the impregnated sheet or on. granules thereto and partly because the granules bothsldes. This coating imparts not only an adlying in the bottom of the groove are not forced ditionai weather resisting quality to the roofing intothe asphalt coating of the grooves so deepbut also aids in providing resistance to wear and ly as those adhering to the fully coated sections 20 help t give the felt the desired degree of s if when the sheet is run over the pressure rolls reand weight and to add to the mechanical strength. ferred to above. Nevertheless, some of the ma- To the su of he p l coating 8 laye terial adheres to the bottom of the groove and if of surfacing material, usually of mineral'or simiit were left there would mar the intended effect I lar stable material in granular form, is applied of the groove or channel as a space simulating, 25

- to provide additional resistance to wear and to stripev or line of demarcation. This granular maprevent the asphaltcoating fromfrunning" under 7 terial clinging to the bottom of the grooves, there-. the action'of heat, thereby maintaining the coats fore, is brushed out as just mentioned and this ing of the asphalt upon the sheet and the protecstep in the process as heretofore practiced has 30. tion-of theifelt against the-weather. g been necessary. V

' One method of producing such sheets or units. In the use of the process just described certain especially of producing units in the form of strips other features have been founddlo be disadvanin which the surface to be exposed is divided into tageous both in the carrying out of the process sections simulating shingles or other structural itself and in the product resulting therefrom units separated bya space simulating stripe or which it isthe object of the present invention to 35 groove in the asphalt, 'is shown in the Letters overcome. one of these disadvantasesis that the- Patent to Outman, No. 1,426,497. This patent dismaterial which is scraped from the grooves closes the method of making, shingle strips by amounts to a considerable part of the total quan-' scraping channels or grooves in the adhesive tity of granular material applied to the sheet. As

40 asphalt coating on a moving sheetof roofing mathis brushed out material has a certain amount 40 terial, depositing.r granular material on the adof asphalt adhering thereto,it is not suitable, hesive material and in the channels, embedding without additional treatment, for re-use in such the granular material in the asphalt coating in coating operations. Even when so treated an adthe surfaces between the channels and then reditional e rpense is involved and its value as co'at- -moving the granular material deposited in the ing material is reduced. It'therefore is largely 5 channels. The granular material in suitable wasted, thus-increasing'the cost of manufacture. quantity and of suitable grain size and color to A further objection tothe process as heretoprovide the desired surfacing effect heretofore fore practiced is that, owing to more or less'unhas been applied over the width of the sheet with: avoidable variations in the delivery of the sheet 5 out regard to h pr en pi the srooves or their to the machine and of the control of this delivery, so

-- u tim t purpose in slmillfltinfl the p s which a somewhat unevenalignment in therunning of require doll W o surface re t r m the sheet results and dlfliculty is therefore ex-' that of the sections which th ir pa ate. It has. perienced in maintaining the alignment of the therefore, been the practice heretofore in carrying grooveswith the brushesfor'removingthe granules out the ma u a u e or coverins a eria s ae- 'from th grooves'. Itwillbe clear from MOI or brush may act not only so that erly remove the granular material from the; 10

ciate and relate the action of the Outman process that of necessity the removal of the granular material and therefore the position of the brushes is remote from the point at which the grooves are formed and that as a result it is difficult or impossible suitably to assothe brush with Consequently the it does not propthe formation of the groove.

shingle simulati the unit simulated. When such imperfect strips or units are placed in a roof or other assemblage of units having sections divided by grooves, these imperfections become marked and spoil the desired effect.

Another difficulty experienced in the manufactur of strips or other units made with the grooves Not only has it been necessary. to adjust as acsame time theymust or channels according to the prior Outman process is that of suitably controlling the amount of the coating removed by the scraping action in the formation of the groove in the asphalt coating so that enough of the coating will remain at the bottom of the groove to afford protection of the granular material to become embedded therein.

curately as possible the setting of the scrapers or "irons used to'form the grooves, but it has been necessary. to carefully shape the portion of the iron making the groove so as tov produce the desired displacement of the asphalt coating without making a ragged edge on the shingle simulating section and preventing as far as possible uneven .bulging of the asphalt adjacent to the groove in the areas to be used as shingle sections.

Other difliculties have been experienced in carrying out the Outman process. For example, the brushes must be run at high speed in order properly to brush out the grooves; This causes rapid wear of the brushes and frequent renewals with considerable expense. Furthermore, they must be made removable for be designed sov as to move transversely of the running of the sheet to permit them to follow the "weave" of the grooves.

' It is, therefore, an objector the present invention to provide a method and means of prevent-' ing the adhesion to the coating in the channels formed in the adhesive coating upon a' sheet of covering material of mineral surfacing material other than that intended to surface these channels.

A further object of the invention is to provide a method and means by which units divided into sections by grooves, formed in aweather-r'esisting coating upon a surface may be made without mechanical removal from the grooves of the sur-' facing material applied to the whole surface.

Another object of the invention is to provide a process of producing units having sections di-' vided by space simulating grooves in the weatherproof coating, which space simulating portions have a substantial weatherproof coating.

A further object of the invention is to provide a roofing felt but not suflicient to cause the embedded in the asphglt this purpose, while at the sections.

to the operation of character of the fine granular H in the grooves may also be such that the texture 45 aplurality of shingles in which process of producing a shingle simulating strip having shingle simulating sections separated by stripes in the form of grooves to simulate the spaces between the shingles, whichsections are coated with granular material to provide a sur- 5 face simulating the shingle, while the groove presents a surface also surfaced with mineral material but of a character distinct from the shingle simulating surfaces and serving to demark said A still further objectof the invention is to carry out the process of grooving an asphalt coated sheet of rooting material and of applying thereto granular materials coarseness in the jacent thereto respectively and in such relation grooving that the areas separated by' the grooves will simulate shingles or other structural units and thegrooves will represent the spaces between the units. The present invention, therefore, provides a process and an apparatus to produce a covering material having an adhesive coating thereon in which channels are formed-to demark areas upon of such degree of fineness or the surface of the covering into sections simulat 2 ing structural units. In

these channels a suitable material is deposited to form a surfacing upon the adhesive in the channel having a character to prevent the further adhesion thereto 'of any of the granular surfacing material spread upon 30 the areas adjacent to the channel to provide a wear resisting surface of desired texture, color, or other characteristics as described above.

The material deposited in the channels is preferably a stable mineral product but of such grain size as not to fill the channel or groove or materially reduce the depth thereof. It, therefore, while .eifective'to. prevent adhesion to the adhesive coating of the groove of the granular surfacing material applied to the-sheet for 40' the purposeof producing the surfacing effects above mentioned, may help to preserve the space simulating characteristic of the groove. .I'he

material deposited and surface appearance of the groove is not only in contrast to the surface appearance of the areas ulation of the space between shingles or of Joints between structural units. such as'masonry joints. or of other spaces or separating reas. The product made according t: the invention, therefore, may take many as shingle strips havingthereon'the simulation of the channels or between shingles,

are formed and having in the channels applied to theooating therein a material to prevent ad- 75 grooves and on the areas adin granular form diiferent forms, such ami os The product which in which channels surfacing the hesion of the granular mineral materials used for covering.

The process mation of the channel or groove in the adhesive coating in any desired manner but the method described in the prior patent to Outman. The particularfeature of g of a suitable material in the channel-or groove tions of the granular surfacing material subsequent to the formation of this channel, preferably immediately following its formation, and -in such a way that at least the bottom surface'of the channel is suitably covered with said material which adheres to the adhesive coating left in the bottom of the channel but is not of the surfaces adiacentto each other by the groove surfacing material without regardto covering the channels or grooves. In contrast to the method described in the patent to Outman, however, in my process it is unnecessary to provide means for removing from the channels or grooves the porwhich, according to the Outman process, unpreventably are deposited and adhere in the grooves. The material which falls into the grooves in the process of the present invention is prevented from adhering to the asphalt coating in the grooves and, therefore,.for example, by merely suitably traversing the sheet so that the surface upon which the granular material is applied, 1. e., the upper surface of the sheet, is caused at some point in 3 the deliveryof the rial upon the surface ofthe sheet Ming into the adhesive at the base of .the hopper or sheet to be reversed, that is, to become the lower side of the sheet, the 'material resting in the channels or grooves will fall therefrom. As will be seen in the drawings and understood from the further description in connection therewith, if desired, this material may fall again into the hopperor supply from which it is delivered to the sheet. a

It is further lating the size of and the amount of the fine material appliedto the grooves or channels to the depth of the groove and taking into consideration the size of the granular surfacing material, the

step of embedding the granular surfacing matesurfacing effect rhay be carried out without fOXCe I the grooves any of the latter" material resting in the grooves.

Thus, not only is the said granular material free to fall from the grooves inthe manner just deis'cribed but, owing to the substantially complete separation provided by the fine'gran'ular material,

in the groove, noneor substantially none of the granular surfacing material to the bottom of the grooves as is the casein the process ofoutman. The ,use .of the fine granu lated material, therefore, makes possible not only a saving of the surfacing material loss or. deterioration may fall directlyagain to source from which the surfacing material is applied to the sheet, whereas in the prior process of Outmanthis material is wasted will remain adhering in the operation ofibrushing out the' groovesrbut the operation of brushing'out itself is'saved with of my invention comprises the formy process consists in the depositionv under suitable conditions to be noted that. by properly re-.

to produce the which without preferably by rial may completely cover proper alignment into the groove and the avoidance of deposition of these points may be set or an attendant saving in the apparatus used and ini the expense of upkeep thereof for effectin this brushing operation. with this is coupled an increase inproduction and consequent reduction felt; an increased resistance to fire with the protection of themineral surfacing as the fine matethe surface of the groove; a cleaner andsharper groove affording better demarcation of the areas simulating structural units.

As has been mentioned above, one problem which is met in the use of the process of Outman is that of making the brushes track or align themselves with the groove from which it is desired to brush the surplus material because of the transverse variation in the delivery of the sheet. According to the present invention, however, not only'may the fine granular material be applied to the grooves to prevent the adhesion of the granular surfacing material in the grooves but this application may be made close to the point at which the formation of the there being no intermediate step tween .that of grooving the coating and applying the fines. Therefore, there, is not only less effect of the transverse run or weaving" of the sheet but it becomes possible so to relate the application necessary begroove is carried out,

of the fine grain materialto the formation of the sense, preferably simultaneously in the same direction, and thus compensate for any irregularity" in the delivery of the sheet and so insure the for delivery of the fine material this material upon the adjacent surfaces which are to be covered with the granular surfacing material. Y

Moreover, it is a feature of the invention so to control the flow of the fine granular material to' the groove that in consideration of its depth, and

in consideration of its width and the rate of movement of the sheet that this fine material is spread over the surface of the groove to give the proper coverage for protection of the coating of the groove and to prevent adhesion which would fall fromthe groove with the granular surfacing material when the direction of the travel of the sheet,

as above mentioned, is reversed above the supply of the granular surfacing material. a As the placeof delivery of the "fines is close to in the groove of f the granular surfacing material used for the sections, while avoiding an excess of the fine material tive to the point transversely of ms sheet at which 7 the groove is formed .by the scraper or iron, .or adjusted in a. predatormined relation. In certain cases the desired result may be accomplished simply by fastening both the scraper and the spouts for-the finesto the frame of the machine. However, if desired,

the process as well as of the 1 .Fig. 7 is a detail view mechanism may be provided to cause both the scraper andthe spouts to move laterally in a predetermined relation in accordance with the movementor the sheet. The invention is not limited to the specific mechanism to provide for this lateral movement but includes the method and means of applying the "fines" in a fixed or in a predetermined relation to the grooves or in a predetermined relation to the transversemotion of the sheet of roofing being treated.

More detailed description of the operations of theprocess and of the apparatus for carrying out product produced thereby will be understood from the description to follow taken in connection with the drawings.

It willbe understood that these drawings ma diagrammatic and merely typical of the applica tion ofmy process in the production of covering materials of the type to which the process is applied. .The examples of covering units discussed in the description are also merely typical and the process and apparatus are in no. sen

limited to the specific examples described.

In the drawings f Fig. iris a diagrammatic view of an apparatus similar to that disclosed in the Outman Patent No. 1,426,497 but modified to incorporate the present invention:

Fig. 2 is a plan view of the apparatus shown in Fig. I Fig. 3 is an enlarged detailsection of .the roofing sheet with a coating of adhesive material thereon in which a channel is formed by one of the pressure members or scrapers: r

Fig. 4 is a section similar to the section of Fig. 3 of the roofing sheet channelled and surfaced by the method of the present invention:

Fig. 5 is a diagrammatic view of a form of the apparatus for carrying out the new'process;

Fig. 61s a plan view of the apparatus shown in a". 5;

scraper shown in Figs. 5 and 8:

to the spouts for a Fig. 8 is a sectional view taken on line i-I of Pig. 7 1

Fig. 9 is a sectional view taken on'line l! of Fig. showing the pressure member or scraper supported in relation to'the sheet and in relation material.

To illustrate the invention I have shown a long constantly rotating rolls, and it movesin the directions indicated by arrows. a Figure 1 shows theapparatus I disclosed iii the-Patent to Outmsn No. 1,426,497

some of the with the addition of the hopper 'II for feeding In practicing. the process asdisclosed in said prior patent, however. it has been found necessary' to scrape thechannels or grooves formed by the pressure member or scraper I so that the adhesive coating remaining therein willfbe a um. This has been necessary because granular surfacing material which is .appi from the hopper It over the whole 'surfaceof the sheetandinthe grooves I formed coatingthereon'adherestothecoatihgin .the grooves and to of the pressure iron or delivery of the fine granular substantially as a guiding rolls 'Inthis such a degree as to make dimcult its removal by the sides of the time. to

means of the brushes II mounted on the shaft ll.

Moreover, in practicing the prior process it has been found that-it is necessary to revolve the brushes III at high speed in order to effect a proper removal of cleaning out of. the groove so as to produce the desired contrast of the groove with the surface of the adjacent sections and thereby to demark these sections and simulate the space between the units. Owing to the "weave" of the'sheet the channels in the asphalt coating, even though these channels have been formed at a constant distance from the edge of the sheet and from each other, m ove laterally relative to the positions of the brushes as the sheet the brushes, and this necessitates movement of the brushes on the shaft ii if the brushes are properly to track Owing to the irregularity of such sideways movement of the sheet, it has been found practicable to secure the sideways movement as producedonly by the tracking" itself of the brushes in the grooves 6. Variations in theresistance to this sideways movement of the brushes and other causes prevent perfect tracking" and the brushes may therefore climb upon the mineral surfaced areas of the sheet, thus damaging the surface thereof and marring the evenness of demarcation of the groove. when siich climbing occurs, imperfect removal of the granular material adhering to the groove also results.

r The operation involving the use of thebrushes, D

therefore, interferes with rapid production and owing to the abrasive tion of the granular material' the brushes wear-out rapidly and require frequent replacemen I adds materially to the cost of producing the- This is expensive and covering material whether in the form of sheets the granular material and a in. the grooves.

travels under 5 a sideways or strlps'with sectionsthereon demariredby the i channels. Moreover it has been foundin-practies that. the abrasive action of the brushes and more particularly. contrary to the conception in said prior patent, the removal of the necessary amount of adhesive to prevent adhesion of the surfacing material mayweaken the material of. the sheet and may cause rapid deterioration of v the material-along the line of the channels.

Following the brushing operation the sheet may be and usually is suitably cut to form shinsle strips orunits of desired size and shape. It. is therefore essential that the proper formation of. the groove as .well as the proper coverage of the surfaces with surfacing material be completed before the sheet is subjected to this operation.-

In Fig. .5 is shown a modified form of apparatus for casting a sheet of roofing with asphalt and for surfacing a coated sheet-with mineral surfacing material. In this figure is shown the adaptation of the present'invention to a machine of this kind. The roofing sheet A is led over 30 and II into the receptacle or tank I in which it passes under a roll :2 submerged in the liquid asphalt contained in the The sheet thus becomes coated on both 1 tank. sides in h These tank I and-uponpassing out of the fluid asphalt tanklt travels between rollers 33 and 34. rollers act to remove and return to the the excess asphalt carrled' by the sheet. manner a substantially uniform coating of asphalt is applied 'to'the'sheet to form a w and weather-resis ing layer I 9,099,571 'and to provide anadhesive upon which the mineral surfacing material may be subsequently applied to the sheet.

Upon leaving the rollersll and 3| the coated sheetipasses above a pair of rollers 36, spaced somewhat apart, and. below the pressure member or scraper 38 mounted betweenthe two rollers 38 and so as to bear upon the upper side of the sheet. The rollers 36 support the weight of the sheet and receive the pressure brought upon the sheet by the pressure member or scraper 38. The scraper 38 is so positioned that the scraping edge or edges 39, which may be in the form of notches or teeth formed or cut in protrusions from the surface of the member 38, press into and remove or displace a portion'ofthe asphalt coating to form the groove in the manner which has been described above. I

In order properly to locate the pressure member 38 and to produce the desired scraping action while affording a. certain flexibility, the member 38 is suspended by rods 45 from a suitable support 46 upon which are fastened brackets 41 to which the rods are attached. The rod 45 may be in two separate parts connected by turn buckles 48 to provide the desired adjustment of the pressure member 38 relative to the moving sheet. The bracket 41 is so constructed," as with shell joint, that the pressure member 38 may swing slightly in the direction of the motion of the sheet in order that the pressure applied to the sheet and the effect of the scraping of the protrusions, or teeth, '39 may be produced by the action of the weight of the pressure member 38 acting against the drag of the asphalt coated sheet. The sheet upon delivery from the rolls 36, having passed under the pressure member 38, will be grooved with a number of grooves corresponding with the number of protrusions 39 upon the pressure member 38.

In the particular embodiment illustrated, as shown in Fig. 7 and Fig. 9, the member 38 is provided with three protrusions having notches therein to form the teeth 39 as shown in detail in Fig. 8. At the left hand of Fig. 7 is shown the arm 40, which is of somewhat longer length than the protrusions 39 and, with the corresponding arm on the opposite end of the member 38, serves as a guide for the roofing sheet A. Thus the location of the grooves 6 relative ,to the edge of the sheet may be, therefore, more or less constantly determined.

In accordance with the present invention, as-

has been described, fine granular material is applied to the grooves formed by the pressure member 38. This material may be of various kinds, such as sand, talc, finely divided or flake mica, or similar stable material which will adhere'to the adhesive coating and present a dry surface to the superimposed surfacing material. In practice it has been found advantageous to use a finely divided slate from which the dust has been separated. While .the particles are minute, they preferably have a surface and size of appreciable degree, that is, they are not or powdered. This finely divided material, there- 'fore, is preferably sufilciently "sharp" to have'a surface to which the asphalt will adhere orof sufficient extent to separate the asphalt coating from the surfacing material showered upon it, that is, it will not be completely covered with asphalt. While the material is of relatively small size or thickness andtherefore occupies no apprecie able depth in the groove, it is effective to prevent adhesion to the asphalt of the mineral surfacing 39 and to the grooves 6 formed thereby. flexibility also permits a motion of the member finely eomminuted material which is subsequently applied to the roonng sheet. I

In Fig. adjacent to ,the portion of the pressure member 38, a hopper 55 is mounted and contains the fine slate. A reed roll 56 is provided below the hopper to deliver to a funnel or a plurality of funnels 51 a controlled amount of the fine slate. Tne funnels a"! are connected at their lower ends ,to spouts or pipes 58 which are engaged by brackets 59 adjustablyfastened uponv the pressure member 38 by means of bolts 50. The bolts Eli are inserted through slots in the brackets 59 so as to permit the lateral adjustment of the bracket 59 relative to the member and to its protrusions 39. The pipe or spout 58 may be made flexible so that by adjustment of the bracket 59 the discharge and of the spout may be properly positioned relative to the protrusions 38 carrying the brackets 59 engaging the spouts 58 relative to the funnel 51 and the hopper 55. By suitable modification of the construction, relative motion between the spouts 5B and the protrusions 39 may be provided to vary the point of This.

application of the fine slate or to compensate.

for variations in the position of the groove upon the sheet.

terial being such as to cover the surface of the I groove with substantially no excess material. As

,the asphalt coating is not yet hardened as it leaves the scraper, the fine slate adheres thereto. A certain degree of drying of the coating is effected after passage from under the spouts and the sheet may then be delivered under the hopper 65 containing the mineral surfacing material which is to be caused to adhere to the asphalt coated areas B.

In, practice this surfacing material is usually of gramflar slate, although other stable surfacing materials, usually of mineral origin, may be used. Within the scope of the invention is included any the asphalt coating but will not adhere to the fine material in the grooves. The hopper 65 is -'provided with a shower or stream of the surfacing material upon the sheet. The shower is delivered to the sheet over thefullwidth thereof, the granular slate falling into the grooves as well as upon the areas B. The sheet carrying the granular surfacing then passes around the rolls 51 and 6B in a manner similar to that described in connection with Fig. l. The granular slate applied to the areas B becomes embedded therein upon passing around,

the roll 61 and any excess material, including that which has fallen into the grooves 6, upon leavingmaterial over the surface of .the groove and thus to provide no substantial excess of the granular slate, there is substantially no "off fall" of the fine slate with the granular surfacing material. re-

suitable surfacing material which will adhere to.

feed roll 56 for delivery of the hopper 65 maybe used again without waste for surfacing the sheet. The'sheet is then delivered over the roll 88 to a suitable winding roll or it may be delivered to an apparatus for. cutting the sheet, for example, transversely, intostrips to simulate a plurality of units such as shingles.

The sheet upon passingaround-the roll 88 will then be covered on the areas B with the granular surfacing material to simulate the surface of shingles or other structural units and these areas 3 will be separated by the grooves 8 in whichthe fine slate adheres but-to which the granular surfacing material does not adhere, being pre vented from so doing by the fine slate in the grooves. Aswlll be seen from Fig. 4, a relatively thin layer of the fine material adheres to the bottom of the groove and thecoarser grain surfacing material adheres 'to the thicker coating of the areas B and'is embedded therein; The thickness of the asphalt coating at the bottom of the groove may be appreciably greater in the product produced by the method of the present invention, as shown in Fig. 4, as compared with the product producedaccording to the prior patent to Outman as shown in Fig. 3, thus affording abetter protectionfor the sheet of roofing feIt A at the point where the grooves are formedand making possi- I ble a sharper groove because it is not necessary to remove or displace so much of the asphalt to form the groove. The effect of demarcation is retained or improved due to the sharpness of the edges of the grooves, and the depth of the groove is not appreciably diminished by the deposition therein 01' the fine, slate. Thus an improved product is obtained as well as the advantages in manufacture discussed above, particularly the elimination of the operation of brushing out the excess granular material as applied according to the process of the prior patent to 'Outman. y In Fig. 5 and Fig. 9 the member 38 is shown suspended by a ball joint which permits lateral or transverse movement of the member 88 relative to the coating and surfacing machine as well as permitting the longitudinal movement described above. This arrangement permitamovement of the member 88 in accordance with the "weaving" 'or lateral movement of the sheet A as it travels through the machine. The positions of the protrusions 39 r lative to the sheet, therefore,'are substantial] constant. As the sheet. is

guided by the arms 48, it may move laterally to 55$ considerable extent' relative to the other portions of the machine, while a substantially constant relatipn or a substantial parallelism of the grooves 8to the edge of the sheet A is maintained, because of the arrangement of the pressure member 38 so as to move laterally with the movement of the sheet. study ,of Figs. 5 and 6, the spouts 58 through which the fine slate is delivered to the grooves are also arranged to move laterally with the pressure member 88. The fine slate, therefore, will be delivered constantly into groovesregardless of the motion of the; sheet A transversely of the machine. In other words, the arrangement shown provides for a fixed or a predetermined relation between the protrusions 88 forming the grooves and the spouts 58 which deliver thefine slate to the grooves. This predetermined relation may be maintained, therefore, regardless 'of the "weaving. of the sheet as it travels through the machine.

As will be clear from a of the means of delivery of the slate with the means for forming the groove is not dependent upon the location oi' the feeding hopper 55 and the funnelsBl with their spouts '58 lengthwise of the machine relative to the pressure member or scraper 88. It is within the scope of the invention that suitable structure may be provided so that the point of application of the fine slate may be more or less remote from the point at which the grooves are formed provided the point of application of the fine'slate is intermediate between the scraping member "and the place of delivery of the shower of granularsurfacirrg material. It isto be noted, however, that in contrast to the method and means disclosed in the prior patent to Outman, in the present invention .it is possible to locate the spouts 58, suitably connected tothe hopper 55 for supplying the fine slate, at a point in close proximity to the scraper 38. In many cases, therefore, it may be unnecessary to provide for the coaction transversely of the machine of the spouts 58 with the pressure member 38. This will be especially the case when the pressure member 38, although mounted, if desired, so as to swingin the dire ction of the motion of the sheet as mentioned abovejis mounted without provision forlateral movement, the

sheet being guided by thearms 48 in a substan- Fig. 1, above the sheet as it passes from the roll 4 toward the hopper I3. ,The grooves formed by the pressure members 5 may be coated with fine slate by suitably feeding this material from the hopper 55. The brushes 20 mounted on the shaft l9 may then be eliminated.

While the invention has been particularly de-- scribed in the forming of continuousgrooves in 'the asphalt coating of a sheet of roofing material and is of especial advantage when such sheets are subdivided as by cutting. transversely of the grooves, intostrips or units having sections on the surface thereof simulating structural units such as shinglesor other units, it has general application in the treatment of sheet material to which an adhesive coating is applied upon which a layer of surfacing material is caused to adhere when it is desired that the sheet will have portions to which the surfacing material does not adhere. 'By the, deposition of suitable.

fine grained material or finely subdivided ma-' sheet along the line of such reduced thickness or for other purposes, the application of the fine grained material is of ,advantagei' This fine ma-- terial serves the double function of prevention of 9,099,; I adhesion of the granular surfacing material and tending in the'direction ofthe motion of-.the

sheet, feeding granular material toward said channels, and so adjusting the-rate of feed with respectto the rate of movement of the sheet and the width of the channels .that the granular material substantially covers the channels.

2. Thejprocess of treating a sheet of covering material having thereon a coating of i adhesive material which comprises continuously forming channels in said coating, continuously feeding granular material toward said channels, so admaterial having thereon a justing the point of application of the feed of the granular material, in relation to the sheet that said granular material is continuously deposited in said channels, and so controlling the amount of granular material fed to each channel that said material is deposited substantially only in registration with said channels and so as to substantially cover the surface thereof.

3. The process of producing a mineral surfaced covering material which comprises coating a moving sheet of fabric with an adhesive material, forming in said coating a plurality of separated channels longitudinally of the sheet as it moves,

feeding toward said sheet and delivering at separated points adjacent said channels granular mineral material, and

at said separated points in registration with the respective channels substantially to cover the surfaceof the channels only.

4. The process of producing a sheet covering coating of adhesive material surfaced with mineral surfacing material, which comprises moving the coated sheetin relation to a forming device soas to form achannel in said coating, delivering against'the sheet as it moves a stream of granular mineral material, so restricting the widthof said stream and so alig'ninglts delivery with the-channel as to direct said stream into said channel and to confine said delivery substantially to the channel, and varying the point of delivery to maintain said alignment with the channel.

5. The process of producing. a mineral surfaced covering material which comprises applying a coating of plastic adhesive to a continuous moving sheet, scraping a groove in said coating lengthwise of the sheet, and delivering a stream of granular mineral material against the sheet in a predetermined relation transversely of the sheet to the scraping of the groove, whereby variations in the position ofv the groove trans-.

versely of the sheet are compensated.

6. In a machine for the manufacture of sheet covering material having thereon an adhesive coating, means for scraping a groove -in said coating, and means acting with said scraping means in a predetermined relation to insure the deposition of finely divided mineral material substantially only in said groove.

7. In a machine for the manufacture from a the surface of the channels without appreciable deposition upon the I surface of the coating adjacent the channels or of excess of said material in coating, the sheet, means pressing upon the coating to maintaining said delivery Y j 7 sheet of "roofing material having a coatlngof .asphalt thereon of a covering material having a plurality of grooves scraped in the asphalt coating, the combinationwith the means for scraping the grooves of means cooperating with said scraping means and in a predetermined relation thereto relative to the position of said scraping means transversely of the sheet for insuring the deposition of finely divided mineral material in said grooves.

8. In a machine for the manufacture of sheet covering material having thereon an adhesive coating, means for forming a groove in said coating, and means for delivering a sream of finely divided mineral material to said groove, and

- means for so controlling said delivery as to insure groove of said mineral mathe depositionin the terial'and to providea substantially uniform coverage of the surface of the groove without substantial excess.

9. In a machine for the manufacture of sheet covering material having thereon an adhesive means for causing lengthwise travel of form a channel therein as the sheet moves, means for delivering to' the channel finely divided mineral material, means for varying transversely of the movement of the sheet the-position of the channel forming means relativeto; the machine,

' and means forvaryingtransversely of the movement of the sheet and concomitantly with the variation of the position means the position of the of said channel forming 10. In a machine for the manufacture of sheet covering material having thereon an adhesive coating,

els, means for delivering fine mineral material to the groove,,andmeans stantlal lateral motion of the sheetrelative to the grooving means and the delivery means.

11. The process of treating a sheet of covering material having thereon which comprises continuously forming across the sheet a channel in said coating, feeding finely divided material into said channel, controlling the feeding so as'substantially completely to cover .the coating in said channel but avoiding deposition upon the surface of the coating adjacent said regard to the channel, the adhesion of said coarser material to the coating in the channel being. prevented'by therein. 7

12. The process of treating a sheet of material having demarked upon a face thereof a stripe of defined width which comprises feeding granular material toward said face of said sheet and adjacent said stripe, and so controlling said feed with respect to the width of said stripe and with re spect to its position upon the sheet as to insure that said granular material is deposited on the sheet substantially only in registration with said stripe.

13. The process of treating a sheet of material a stream of granular material of iimitedcross-' means for delivery of fine mineral material, so as to insure the delivery of said material to the channel.

an adhesive coatin the finely divided material means for causingtravel of the sheet, means for grooving the'coating as the sheet travfor preventing subcontinuously channel, and subsequently depositing coarser material upon the sheet without" section, and so controlling said delivery and the cross-section of the stream with respect, to the width of said stripe and the po8ition of the stream with respect to the position of the stripe upon the sheet as to insure that said granular material is deposited upon the sheet substantially only in registration with said stripe.

-14. The process of treating a sheet of material which comprises continuously demarking across the 'face thereof a stripe of defined width, continuously feeding'granular material toward said face of said sheet and adjacent said stripe, and so controlling said feed with'respect to the width of said stripe and with respect to its position upon the sheet as to insurethat said granular material is deposited substantially in registration with said stripe to cover substantially only the area of said stripe upon the sheet.

15. In a machine for the manufacture of a sheet, material having bound upon a face thereof by an adhesive coating a layer of surfacing material upon'areas separated by a stripe demarked upon the surface of the coating, means for moving said sheet in the direction of the length of the-stripe,.and means for feeding and delivering toward :the stripe upon the sheet granular I structed-and arranged substantially to confine material capable of adhering to the coating upon the area of the stripe, said means for feeding and delivering" said granular material being consaid delivery to the area of said stripe to prevent adhesiomto said area-of the sheet of the granular surfacing material subsequentlyapplied to the face. of the sheet for adhesion to the coating 16. An apparatus comprising means for con tinuously moving an elongated sheet of material lengthwise of the sheet, means fu' continuously marking upon the surface of said sheet a stripe lengthwise thereof, means for delivering toward the surface of the sheet a stream of granularmaterial, said meansior delivering the granular material being so constructed and arranged as to confine the delivery ofsaid granular material 7 to the area of the stripe when in registration therewith',and means for producing co-action of "stripe-to maintain with said stripe.

said means for delivering the granular material to the'strip'e with said means for producing the registration of said delivery 17. In a machine for producing sheet roofing,-

, means for continuously moving the sheet'lengthwise thereof, means for continuouslyv coating a face of the sheet with an adhesive coating, means for continuously forming a stripe on said coating lengthwise of the sheet, means for delivering I toward said sheet'granular material, said means liveryof said granularmaterial to the area of for delivering said granular material being so constructed and" arranged as to confine the dethe stripe, means for producing co-action of said 5 means for delivering thegranular material to the stripe with said means 'i'or producing the stripe to maintain registration of said delivery with said stripe, means i'or' applying to the whole surface of the sheet a layer of granular surfacing material and causing said'surfacingmaterial to adhere to the areas of the coating separated by said stripe, and-means for removing from the area of the stripe the granular surfacing material prevented from adhering to the coating by the granular" material applied to the area of the.

stripe. I

18 In a machine for producing sheet roofing,

, means for continuously-moving the sheet lengthwise thereof, 'means' for continuously coating a face of the sheet with an adhesive coating, means for continuously forming a channel in said coating lengthwise of the sheet. means for deliver terial ing toward said sheet granular material, said s means for delivering said granular material being so constructed and arranged as to confine the delivery of said granular material to the area of the channel when in registration therewith, '5

means for producing co-action of said means for delivering the granular material to the channel with said means for producing the channel to maintain registration of said delivery with said channel, means for applying to the whole sur-' l0 face a layer of granular surfacing material and causing said surfacing material to adhere to the areas of the coating separated by said channel, and means for removing from the area'of the ,channel the granular surfacing material prevented from adhering to the coating by the granular material applied to the area of the channel,

said means for forming the channel being so constructed and arranged as to be capable of movement transversely of the motion of the 0 sheet, said means for delivering the granular ma"- terial to the channel being so connected to said meansfor forming the channel as to move transversely of the sheet in accordance with the transverse movements of said means for forming the channel to maintain alignment of said delive of the granular material to the channel. 19. The process of treating a sheet 'of material having formed in a face thereof a channel which comprises feeding granular materialtoward said face of the sheet and adjacent said channel, and so controlling the feeding with respect to the proportionsof said channel and with respect to its position upon the sheet as to in-' sure that said granular material is deposited substantially only in said channe I 20; The process of.' preparing a covering mawhich comprises continuously moving an elongated sheet of material in the direction of its length, continuously coating aface-of said 40 sheet of material with tinuously pressing the an adhesive coating, con-n sheet and to leave in said channel a relatively thin coating of said adhesive, continuously feeding toward said face of thesheet and adjacentsaid channel a stream of'granular material of such grain size as not to occupy a substantial part of the depth of the channel, controlling the feeding of theproportions ofgthe channel and in relation to ita-ggposition upon 't'lieface of the sheet so that said granular-material is deposited only in said channel in amount sufllcient to coverthesurface thereof but insumcient to occupy a substantial part. of the 'depth of the channel, and subsequently covering said face of the sheet with granular material of contrasting character and causing it to adhere to the portions of said adhesive separated by the channel, said granular,

material in the channel substantially preventingsaid contrasting granular material from adhering to the coating in the channel.

21; The process of treating asheet of material face thereof a stripe having demarked upon a 'of defined width which comprises feeding granular material toward said face of said sheet and delivering it adjacent said stripe, moving said sheet with respect to the pointof delivery of said 7 granular materialand in the direction of the length of said stripe, controlling the,v feeding of said granular material with respect to the width of the stripe, aligning the delivery of said granular material with said stripe and varying there adhesive coating to forin therein a. channel extending lengthwise of the said. granular material in relation to 50,

15 for delivering the granular material toward the.

a,oae,s71

. sheet to cause said delivery to register with said position oi the point of delivery of said granular material to maintain alignment thereof with said .stripe, whereby said granular material is depos-.

ited substantially only inregistration with said stripe;

Patent No. 2', 099 571 CERTIFICATE OF CORRECTION.

stripe. 23. The process of treating a sheet oi material having formed in a face thereofa depression with a sharply defined edge demarking said depression from an adjacent portion of the surface 01' the sheet which comprises feeding granular material toward said face 01' the sheet and adjacent said depression and so controlling the feeding-with respect to said sharply defined edge and with respect to the position of the depression on said sheet as to insure that said granular material is deposited substantially only in said depression 'to cover the depressed surface thereof.

WlN'F'Rl'iD H. OUTMAN.

November 16,1957.

Y NINFRED H. ournm.

Hit is hereby certified that error appears in the printed spec'ifiicationj Ofithfi above numbered patent requiring correction as follows: Page 5-, second column, line 69, for the word "point" readposition; and after "sheet" insert the words of the point 3 and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 25th day of October,

(Seal) A. D.- 1958. Henry Van ilrsdale Acting Commissioner of Patents 15 for delivering the granular material toward the.

a,oae,s71

. sheet to cause said delivery to register with said position oi the point of delivery of said granular material to maintain alignment thereof with said .stripe, whereby said granular material is depos-.

ited substantially only inregistration with said stripe;

Patent No. 2', 099 571 CERTIFICATE OF CORRECTION.

stripe. 23. The process of treating a sheet oi material having formed in a face thereofa depression with a sharply defined edge demarking said depression from an adjacent portion of the surface 01' the sheet which comprises feeding granular material toward said face 01' the sheet and adjacent said depression and so controlling the feeding-with respect to said sharply defined edge and with respect to the position of the depression on said sheet as to insure that said granular material is deposited substantially only in said depression 'to cover the depressed surface thereof.

WlN'F'Rl'iD H. OUTMAN.

November 16,1957.

Y NINFRED H. ournm.

Hit is hereby certified that error appears in the printed spec'ifiicationj Ofithfi above numbered patent requiring correction as follows: Page 5-, second column, line 69, for the word "point" readposition; and after "sheet" insert the words of the point 3 and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 25th day of October,

(Seal) A. D.- 1958. Henry Van ilrsdale Acting Commissioner of Patents

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