US1610777A - Apparatus for - Google Patents

Description

Dec. 14.; 1926.

D.. G. HARVEY APPARATUS FOR APPLYING BORDER AND MEASURE MARKS TO FABRICS Filed 0a.. 1 5, 1922 6 .sheet 1 Dec. 14 1926'.

D. G. HARVEY APPARATUS FOR APPLYING BORDER'AND MEASURE MARKS TO FABRICS Filed 001:. 13, 1922 6 sheets-Sheet 2 1,610,777 D. G. HARVEY APPARATUS FOR APPLYING BORDER AND MEASURE MARKS TQFABRICS.

Deco Q Filed Oct. 13, 1922 gsheets' sheet 3 pw w Dec. 14 1926.

- o. "a. HARVEY APPARATUS FOR APPLYING BORDER AND MEASURE MARKS TO FABRICS 6 fiheet-Sheet 4 1 5 3 A M, fl, Z J, 4 2 Z :0 HM 1 6 1 r 5 m u 1 0 w h f 2m 0 4 .l I i n 5m fwento De c. 14.1926. 4 1,610,777

D. G. HARVEY APPARATUS'EOR APPLYING BORDER AND MEASURE MARKS T0 FABRICS Filed Oct. 13, 1922 e sheets-she t 5' Dec, 14. 1926.

D. G. HARVEY APPARATUS FOR APPLYING BORDER AND MEASURE MARKS TO FABRICS Filed. 0st. 13, 1922 6 Sheets-Sheet 6 DGUGLAS Gr. HARVEY, C'F DIESEL ELLINGIS.

APARATUS 150R APLYING 330313111 3 AND HIT-1.55.

Application filed October 13, 1922. Serial Ho.

The object of my invention is to provide an eliicient method and mechanism for applying a distinctive border to one or both or ges of woven wire fabric such wire screen ordinarily used for windows and doors. My invention, however, is applicable for applying such-border marking to other fabric intended for other uses, and comprises the marked fabric as well as th mech anism and method herein described. Several purposes are served by applying such a border to wire ereen fabric. A border .such as herein described forms a distinctive designation which will serve as a trade-mark to identify the origin of the goods. By forming the border with projecting points or other marks spaced at predetermined and fixed distances, say at intervals of six inches or a foot, means are provided for accurately and speedily measuring the length of fabric taken from the roll in making a sale. If the marking material used for forming the border be of some permanent and waterproof material, it will serve the furtherpurpose of n-otecting the edge of the screen cloth fron' rust where it underlies the nailing strip.

Diziiculty has heretofore been experienced in applying a border or other designating marl: to wire screen on account of the fact that its open mesh of fine wire does not lend itself readily to receiving and holding the material necessary for that purpose. Before proceeding to a detailed description of my method and the mechanism for applying the same, I will briefly outline the character of the method and apparatus inorder to fa cilitate an understanding; of the mechanis more particularly described below.

In then'iamifacture of wire screen, the fabric after being woven and galvanized, painted or otherwise treated, is delivered in the form of continuous web which is wound in rolls. As herein described. I apply the border marking to the roll after the completion of the operations referred to. I shall heroin refer to the medium which constitutes thborder either as the marking me-' dium or filler. This marking medium is preferally of such a degree of viscosity to (ill the mesluopenings between the wires.

thus foriniug a continuous border strip upon the fabric distinguished from a mere coloring of the wires. iis the web of screencloth is delivered to my improved apparatus, 1 cause its edge, or each edge, to pass through a groove in the periphery of a ro- ARIES to rename.

tary marker, the depth of the groove being sufficient to overlap the selvage edge and one or more rows of mesh-openings inside of the selvage edge. Ordinarily the selvage edge consists of one or more wires over which the woof Wires are double back and a suitable border is formed by having the marking mei Clllllll'GXbGllCl inwardly from the edge of the web to an extent sufficient to cover and fill one or more rows of mesh-openings. For measuring purposes I provide projections at every foot which consist of a widening of the border extending inward'to about the fourth or fifth warp wire, and midway between the foot designations l widen the'border to a lesser extent to form smaller projections designating fractional subdivisions} such as three or six inch divisions. -'.lhe groove in the rotary marker is continuously supplied with the marking medium,-and as the edge of the fabric passes through; the groove suiiicient of the'marking medium is conveyed to the edge-portion of the fabric-to aceomplishthe desired effect. The grooved ably spaced intervals with projections which form the measure marks referred to.

.pcriphery of the marker is provided at suits As will appear more in detail from the 7 following description of the mechanism, the web of the screen-cloth or other fabric is conveyed through my improved apparatus,

the power for moving the fabric being applied to the shaft upon which the completed A fabric is wound, or by other means not necessarily forming part of the marking apparatus. The power for operating my iniproved apparatus is talcen from the moving fabric. In order that the measurement marks be properly spaced upon the fabric, it is, of course, necessary that the angular velocity or speed of rotation of the rotary marker bear a fixed relation to the lineal speed with which the fabric passes through the machine. the machine hereinafter described by the provision in my apparatus of two rollers, one of them preferably having a rubber surface, these rollers engaging the opposite sides of the fabric with spring pressure whereby the peripheral velocity of the rollers is the same the lineal velocityof the fabric. One ofthese rollers is connected by.

. positive gearing,,such as the toothed. wheels.

and sprocket chain illustrated, with the res tary marker. By this meansthe angular ve l. accomplish this purpose in Trio locity or speed of rotation of the marlzm' bears a fixed relation to the lineal velocity of the fabric. The relation between the lineal velocity of the fabricand the peripheral velocity of the marker where it engages the edge portion of the fabric will depend upon the diameter of the rotary marker. Preferably the diameter of the rotary marker is such that its peripheral velocity will be different from the lineal velocity of the fabric, the peripheral velocity of the marker being greater or less than the lineal velocity of the fabric in order that the rotating marker may exert a wiping action upon the edge of the fabric thereby assisting in removing any surplus of the filler or marking medium of which the border is composed. It will readily be apparent that the periphcry of the rotary marker may be given a lineal velocity different from the lineal veloc ity of the fabric without disturbing the fixed relation which must exist between the angular velocity of the marker and the lineal. velocity of the fabric which is necessary to the proper spacing of the length designations upon the fabric.

In the drawings- Figure 1 is a side view of my improved apparatus;

Fig. 2 is a plan view;

Fig. 3 is an end elevation from the end at which the screen passes into the machine;

Fig. l is a fragmentary plan view of the righthand side of the apparatus, as shown in Fig. 2;

Fig. 5 is a partial sectional elevation on the line 55 of Fig. 2, looking in the direction of the arrows;

Fig. 6 shows'certain parts of the machine in section upon the line 66 of Fig. 5;

Fig. 7 is a sectional view on line 7-7 of Fig. 3; p r

Fig. 8 is a perspective view of one of the adjustable carriages upon which the marking mechanisms are carried;

Fig. 9 is a sectional view on line 99 of Fig. 3;

Fig. 10 is a central sectional elevation of the rotary marker;

Fig. 11 is a plan view of the lower section of the rotary marker shown in Fig. 10;

Fig. 12 is a plan view of the upper section of the rotary marker shown in Fig. 1.0:

Fig. 13 is a detail sectional view of a guide through which the edge of the screencloth passes;

Fig. 14 is a fragmentary view of the edge of the screen-cloth after having the border applied;

Fig. 15is a fragmentary detail view of the selvage edge of a common form of wire screen-cloth;

Fig. 16 is a detail view of a stop-arm for positioning the rotary marker.

Fig. 17 is a plan View of a modified form of rotary marker;

detail in Fig. 8. wheel 15 which 1s secured to shaft 12 moves Fig. 18 is a view of a section of screencloth with an edge border formed of a nonviscous medium applied by the rotary marker shown in Fig. 17.

The fixed frame of the machine comprises vertical supports 1, 2, 3 and a, the supports 1, 3, being connected near their upper ends by a horizontal member 5 shown as an angleiron fixed to angle-brackets 6 secured to the uprights 1 and 3. The main frame also comprises two members designated generally by the numeral 8, one at each side of the machine and bolted to and connecting the uprights 1 and 2, at one side, and 3 and at the opposite side. The outline of the members 8 is best shown in Figure 1. The two side frames, each composed of two uprights joined by one of the members 8, are rigidly connected by the angleiron 5 above mentioned and also by guide- rods 9, 10. The mechanism for applying the marking medium or filler to the edges of the screencloth consists of two separate similar units slidably mounted, one at each side of the machine, upon the guide- rods 9, 10. The carriage or base part 11 of one of the marking units is shown in perspective in Fig. 8,

many of the parts being omitted in that view in order to clearly exhibit the form of the supporting or base member of the carriage and its relation to the guide- rods 9, 10, and other associated parts. These carriages 11 serve as supports for the marking mechanisms on opposite sides of the apparatus. Rotatably mounted in the side frame members 8 is a rotatable shraft 12 havin a left-hand screw-thread at one end and a right-hand screw-thread at the opposite end which engage respectively correspondingly screw-threaded apertures 14 in the carriages 11, as most clearly show in Rotation of the handthe carriages 11 toward or away from each other to accommodate screen-cloth of diifen ent widths.

I will next describe the means for passing the screen-cloth through the machine and the means for driving the marking mecha' nism by power derived from the. movement of the screen-cloth. The web of screen cloth is drawn through my improved apparatus by any suitable means external to the appara tus. In the present instance, the power for moving the screen is shown as derived from the winding-roll 1 6, shown in Fig. 1. The web of screen-cloth 18 enters the machine from the left as viewed in Fig. 1, passing beneath a guide-roller 17 which extendsacross the machine from side to side and is jonrnaled in hangers 19 which are secured to and de pend from horizontal angle-iron brackets 20 which are secured to the upper surface of crossmember 5 and project toward the end of the machine at which the screen-cloih fromthe guide formed by the plate 56 and ot the marker.

" describe its structure.

pressure-plate 59. he horizontal base 61 of the pressure-plate 59 extends beneath and is secured to a spring-aetuated pressureinember 6 the parts 6 and 59 being in effeet a single integral member. The pressure-member 64: is provided with a downwardly opening glOOVG which fits over .the unwardl directed flange 58 of the )late i .i .4 l

56. A bolt 66 is secured at its lower end in guide-plate 56, as appears in Figs. 8 and 13, and projects upwardly through pressuremcmber 64, the member 64 being vertically slidable upon the bolt 66. Between anut 67 threaded upon the bolt 66 and the upper surface of the pressure- member 64, 1 pvide a pressurespring 68 whereby the pr sure-inember 6e and its connected pressureplate 59 are yieldingly pressed downward against the upper surface the screencloth. Adjustment of the nut 67 regulates the degree of spring-pressure thus exerted.

The marking medium or filler is applied to the edge-portions of the screen-cloth by means of a rotary applying device shown in detail in section in Fig. 10. Before describing the connection of this rotary marl;- er to other parts of the mechanism, I will The rotary marker is fixedly mounted upon a vertical shaft 81 and consists of lower and upper members 82 and 83 separately shown in Figs. 11 and 12 respectively. The member 82 in general outline talres the form of a disk wita an upstanding flange 85 about its periphery and an upwardly projecting hub 86 at its center, the hub closely fitting the exterior of a-hub 90 which projects upwardly from the lower member 83 of. the marker. The upstanding flange 85 and hub 86 form between them an annular depression or basin 87. A- annular groove 88 is formed about the periphery of the lower surface of the member 82 and this annular groove is connected by a circular series of openings with the basin 87. The lower member 83 of the rotary marker is in general form also a disk formed with an upstanding central hub 99 which is received, as above indicatec, within the hub 86 of the upper member 82 The lower member 83 of the marker is provided about the pe iphery of its upper surface with an annular groove 91 which registers with and is opposite to the annular n'ooove in the upper member 82. 'lhe co-acti grooves and 91 form, when the device i sembled as shown in Fig. 10, a sin is n oral groove around the marl:-

n t l "1 er, this groove being adapted to receive the edge-portion of the screen-cloth as it passes through the machine. One or the other of the sections 88, 91, of the groove is made deeper in a vertical direction at its inner part. in the drawing, 1 have shown the section 91 of the groove as being vertically deepened at 92 This has the effect of increasing the Vertical width of the groove at its base portion, forming an under-cut base section designed to receive the selvage edge or" the screen-cloth and to hold a suiiicient body of the markiug-material. In operation, the marking material or filler is contained within the basin 8'? and flows from the basin through the openings 89 into the groove 8891, and the edge-portion oi the screen-cloth in passing through this groove receives the filler which thereby :orms a border 98 upon the screen-cloth indicated in Fig. 1%. The marking material employed is of such a degree of viscosity to c; ise to completely fill the mesh --ings between the wires at the edge-portron oi the cloth. A wide variety of marl:- ing materials or fillers may be used. I have ob nod satisfactory results by suitable pigment with a suitable carrier such hauri gum and Chinese wood oil. The width of -e border so formed is governed by the radial depth of the groove 88-91. In practice I have found that the filling of a single row of mesh-openings at the edge of the cloth forms a suitable and satisfactory border, but the width of the border can, of course, be increased by deepening the groove 889l radially of the marker thereby filling more than one row of mesh openings at the edge of the screen-eloth.

In order to apply the measureanarks designated 9st and 95 upon Fig. l l ot' the drawing, Iprovide the periphery of both the upper and lower members 82, 83, of the rotary marker with suitable projections so spaced circumferentially of the marker that the measure-marks are accurately applied at predetermined intervals when the marker is rotated as hereinafter described. he measure-marks consist, as shown in Fig. 14, of projections formed upon the inner edge of the border 93. As shown in Figs. 11 and 12, the projections 96 and 96 upon the upper and lower members extend outward radially from the center of the marker to a greater distance and are wider circumterentially than the projections 97, 9?. It will be understood, of course, that the groove 88-91 extends through these projections. The effect of the projections, which may be termed measure-mark projections, is to carry the marking medium or filler inwardly from the edge of the screen-cloth a distance greater than the width of the main border 93 shown in A. The measure-mark 95, shown in Fig. 14-, is illustrated as projecting inward from the edge of the screen-cloth to an exmixing any 7 lit? iii

till

tent equal to two mesh openings beyond the straight bordenportion 98; and the measuremark 94, shown in Fig. 14, is illustrated as extending inwardly one mesh further than the straight border 93. The measure-mark 95 is also shown as having greater width longitudinally of the screen-cloth than the measure-mark 94. The measure-mark 95 is formed by the larger projection 96-90 of the'rotary marker, and the smaller measuremark 94 is formed by the smaller projection 97-97 of the rotary marker. The large measure-mark 95 may be used to designate intervals of one foot upon the screencloth, and the smaller measure-marks 94 to designate six-inch intervals between the foot marks 95. The rotary marker members 82 and 83 may be held in assembled position upon shaft 81 by means of a nut 84 screwthreaded upon the lower end of shaft 81, as shown in Fig. 10. In the operation of the machine the marking-medium or filler is continuously supplied to the basin 87, and in order to provide against the possibility of the filler overflowing the edges of the basin 87, in the event of the rate of supply of filler being more rapid than its consumption, 1 provide an overflow opening 98 which may take the form of a hollow nipple 99 extending above the bottom of the basin 87 and communicating with an opening in the lower member of the marker. Means hereafter described are provided for receiving any overflow passing from the lower end of the opening 98.

The shaft 81 is rotatably mounted and vertically supported in the free end of an arm 100, shown in Figs. 1, 2, 4, and 5. The arm 100 is rotatably mounted and vertically supported upon the stationary vertical shaft 101, the shaft 101 being fixed in a pedestal 54, clearly shown in. Fig. 83, mounted upon the end 51 of the carriage 11. The arm 100 carrying the rotary marker 8283 is impelled toward the edge of the screen-cloth by means of a tension spring 104. One end of the spring 104 is secured to the arm 100 and the other end to the upper end of the bolt 66, as clearly shown in Figs. 4 and 5. The pressure-roller 21, which receives rotation from the moving screen-cloth, is provided with hollow trunnions 70 which extend through their bearings in the hangers 23, as shown in Fi 5 and in dotted lines in Fig. 3. These trunnions 70 and the body of the roller 21 are provided with axial bores which form bearings for drive-shafts 71, one at each side of the machine, as shown in Fig. 3. As shown in Figs. 5 and 7, each of the shafts 71 is splined in its bearing in the hollow trunnion 70, the spline and groove being designated by the numeral 110. The shafts 71 are thus non-rotatably connected to the trunnions 70 but are free to slide endwise therein, the length of the shafts 71 being such that they may slide into the bores in'the trunnions i0 and the continuing axial bore in- 111 which are fixed to and project horizontally from the standards 54, as shown in Figs. 3 and 8. At their outer ends bevel gears 112 are fixed to shafts 71. The shafts 71 are held against endwise movement relative to bearings 80, and hence partake of the movement of the carriages 11 upon the guide- rods 9 and 10 when said carriages are moved toward and away from each other to accommodate different widths, of screencloth, and during this movement the shafts 71 have a telescopic movement in the hollow trunnions 0f the roll 21 to which they are splined, as abc ve described. The bevel gears 112 at the ends of shafts 71 mesh with bevel gears 113 which are integral with or rigidly secured to sleeve members 250 Each of the sleeve members 250 is'also formed integrally with or has rigidly secured thereto a sprocket Wheel 102 as best shown in Figs. 1, 3 and 5, the latter figure showing the construction in detail. Sleeve member250 is rotatably mounted on fixed shaft 101 and is supported at its lower end upon a ball bearing 251, the raceway for the balls lying between the lower end of the sleevemembe'r and an annular flange formed on shaft 101, The pivoted arm 100, above mentioned as carrying shaft 81, may rest upon and be supported vertically by the upper end of the sleeve member 250. A sprocket chain 170 engages sprocket wheel 102 upon sleeve member 250 and a sprocket wheel 103 fixed to the rotary marker shaft 81. The rotation of roller 21 is thus transmitted through shaft 71, bevel gears 112, 113, sprocket wheel 102, chain 170 and sprocket wheel 103 to 1'0- tary marker shaft 81. Stop arms 114, shown in detail in Fig. 16, may be fixed to the arms 100, and fitted with adjustment screws 115 adapted to contact with the cross-member 5 and thereby limit the movement of the arm 100 and the rotary markers 8283 carried thereby. As above stated, the rotary markers are impelled in a direction toward the edge of the screen-cloth by the tension springs 104 and the stop-arms 114 when used serve to limit their movement in that directiomwhile the springs 104 permit the stop-arms to move outwardly to accommodate irregularities in the width or movement of the screen-cloth.

The stop arm 114 is not essential to the op eration of the machine and may be omitted. When so omitted the base of the groove 8891 in the rotary marker rides against the edge of the screen cloth or other fabric with yielding pressure caused by the spring 104, which while holding the marker in proper relation to the edge of the fabric 6 Leia? permits it to adjust itself to any irregularities in the form of movement of the web.

ing-material to the basins 87 in the upper surfaces of the rotar markers 82-83. in Fig. 3, l have shown a pipe 117 for supplying the marking-medium or filler, this pipe having flexible branches 119, 119, provided with valved outlets 118 dischargin through nozzles 120 into funnels 119 carried by pipes 150 mounted on the movable carriages upon which the markingmechanisms are mounted. The nozzles 120 may be connected to the fun nels 119, as indicated in Fig. 8, in such man her that as the marking -mechanism carriages are adjusted toward and from the center of the machine such adjustment will be accommodated by the bending of the lienible tubes 119. For the purpose of catching any overflow from the basins S7 of the rotary markers 8283 and any dripping-S, 1 provide beneath the rotary markers pans 121 provided with downwardly directed outlet pipes 122, the out-let ends or": which are over a trough 123 which inclines downwardly from its ends toward its center where a discharge-pipe 12% leads to a tank 125 in which the overflow and drippings are collected and recovered. At the end of the machine at which the screen-cloth enters, one at each. side, are guides 125 mounted at their lower ends upon the parts 51 of the carriages 11 and extending outward around the extreme ends of the roller 17 and inward to the crossmember 5 upon which their upper ends rest, as clearly shown in Fig. 7. In Fig. 7, 1 have shown the screen 18 as entering the machine from a vertical position and passing beneath the roll 17 horizontally through the machine. In operation, howeyer, the screen 18 is not always perfectly tautas it enters the machine, and may in some instances sag more or less and it is for this reason that 1 provide the edge guides 125.

I provide a scale 160 mounted on the cross member 5, as shown in Figs. 1, 1- and 5, and a cooperating pointer 161 upon and fixed to apart of the marker carriage 11, the purpose of the scale and pointer being to facilitate adjustment of the markers for different widths of screen -cloth.

1 will now describe the operation oi": the mechanism somewhat more in detail than in the introductory partof this specification. The screen-cloth entering the mechanism passes beneath the roller 17 at the left-hand end of the machine as viewed in Figs. 1 and 7. Beyond the roller 17 the screen-cloth enters the side guides formed between the plates 56 and pressure-men'ibers 59, and also finds support upon the central table 42, the latter being shown more particularly in Figs. 2 and 9. Passing between the rollers 21 and 22, the screen leaves the machine up roll 16, the latter being shown only in 1. As the screen so aasses through the machine its movement imparts rotation to the roller 21. The peipheral velocity so imparted to the roller 21 is equal to the lineal velocity or. the screen, exact accuracy being insured by the pressure exerted upon the screen-cloth by the yielding roller 22. The rotation of the roller 21 is transmitted through shaits 71, bevel gears 112, bevel gears 113, and sprocket wheels 102 which form part of sleeve members 250, sprocket chains 170 to the rotary markers 82 83. Since the roller 21 is thus positively connected by gearing to the rotary marlrers 82 83, the angular velocity or speed of rotation of the markers bears a fixed relation to the rotation of said roller 21 and to the lineal velocity of the screen. llilanifestly the relation between the lineal velocity of the screen and the aeripherai velocity or the markers will depend on the diameters of said rotary markers. The diameters of the rotary markers 8283 are made such that their peripheral velocity will be different from the lineal velocity or the screen. The peripheral velocity of the marker is made greater (or less) than the lineal velocity of the screen, in order that the rotary markers may exert a wiping action on the edge of the fabric, thereby assisting in removing any SLl'QlllS of the iiller or marking medium of which the border is composed. By rotation the hand-wheel 15, the distance between the rotary markers at opposite sides of the machine is so adjusted that the grooves 88-91 in the rotary markers embrace the cdges or the screen-cloth, the radial depth of the grooves 88-91 in the rotary markers being suiiicient to overlap the screen-cloth to the extent necessary to impart he marlzing shown in Fig. 14, or such other width oi marking as is desired. As the edgeportions of the screen-cloth pass tangentially through the overlapping parts of the 'rooves in the rotary markers, the colorii medium or tiller with which the grooves are sup alied from the basins 87 through the openings 89 isconveyed to the och e-portions of the screen-cloth, and by reason of its viscosity the tiller bridges over and r il the mesh-openings which are over lapped by the marker grooves. This overlap is uniform throughout the periphery oi? the rotary-imarkers except for the projecting parts 9696 and )7 37, which parts overlap to a greater extent and carry the marl cing material farther from the edge of the screen-cloth, thereby forming the measure marks 91, 95, shown in F 1 1. Of course, by omitting the projections referred to, simply a border of uniform width would be formed upon the screen-cloth. As above stated, the roller id is provided with proecting flanges 47 so spaced that the edgeportion of webs of screen-cloth of different standard widths always come between adjacent flanges, thereby keeping the newly applied border and measure-marks from con tact with the roller, and thus giving the coloring medium or filler sufficient time to dry before contacting with any surface upon which it might offset.

I have found that in the operation of my improved machine, it is desirable that the rotary marker have a peripheral velocity different from the lineal velocity with which the screen moves through the machine there by causing a relative movement between the edgeportions of the screen and the co-acting part of the groove 88-91 in the rotary marker. Such relative difference of veloc ity, whichever of the two velocities be greater, causes the walls of the groove 8891 to exert a wiping action upon the edge-portion of the screen-cloth thereby assisting in removing any surplus of the marking material or filler. This difi-erence of velocity, however, is slight and not of sufficient magnitude to injuriously spread the measuremarks longitudinally of the screen-clotl'i.

It will be Obvious that in order to insure accuracy in the placing of the measuremarks 94, 95, upon the screen-cloth, it is essential that the velocity of rotation of the rotary markers 82-83 hear an absolutely fixed relation to the lineal velocity with which the screen-cloth passes through the machine. This end is attained by the positive gearing connecting the roller 21 with the rotary markers, this positive gearing comprising, as above described, the shafts 71 which slidably and nonrotatably engage the roller 21, the bevel gears 112, bevel gears 113 and sprocket wheels 102 of the sleeve member 5250, and the sprocket chain 170 which engages the sprocket wheels 102 and 103 fixed respectively to the sleeve member and shaft 81, to the latter of which the rotarymarkers are secured. The slight difference between the peripheral velocity of the rotary markers 8283 and the lineal velocity of the screen-cloth also has the effect, according to whether the peripheral velocity is greater or less than the lineal velocity referred to, of imposing either an accelerating,

or retarding force upon the sprocket chain and bevel gear connections above referred to, thereby preventing any possible irregularity in the placing of the measure-marks due to lost motion resulting fron'i the slack in the gearing. The accelerating or retarding force referred to results from the fact that the engagement of therotary markers with the edge-portion of the screen-cloth constitutes in effect friction drive, the frictional engagement being increased by the presence of the viscous marking medium or filler.

In Figure 17, I have shown a modified form of marker 260, the periphery of which is indented at 261 and 262, the notch formed at 261 being wider than that at 262. These notches form interruptions in the groove, corresponding to the groove 88-91 of the marker shown in Figs. 10,11 and 12, and the use of such a marker gives rise to interruptions in the border upon the fabric as shown in Fig. 18. The wider interruption or gap 263 may designate foot intervals and the smaller gaps 264 may designate fractional intervals such as 3 or 6 inches. In F 18, I have shown the marking material as adhering to the wires without bridging over and filling the mesh openings. This form of marking may be desirable in some instances and may be accomplished by using a relatively freely-flowing marking medium which has not sufiicient viscosity to bridge over and fill the mesh openings.

What I claim as my invention is:

1. In an apparatus of the class described, means for imparting longitudinal movement to a web of fabric, a rotary marker mounted at the side of the path of movement of said web and adapted to engage the edge portion thereof, said rotary marker having its axis of rotation at right angles to the said path of movement.

2. In an apparatus of the class described, means for imparting longitudinal movement to a web of fabric, a rotary marker mounted at the side of the path of movement of said web and adapted to engage both sides of the edge portion thereof, said rotary marker having its axis of rotation at right angles to the said path of movement.

3. In an apparatus of the class described, markers adapted to engage the opposite edge portions of a moving web of fabric, means for adjusting the distance between said markers, and means to cause said markers in all their adjusted positions to exert yielding pressure against the edges of said fabric in the plane of said fabric.

I. In an apparatus of the class described, rotary markers adapted to engage the opposite ec ge portions of a moving web of fabric, means actuated by the movement of said web for rotating said markers, means for adjusting the distance between said markers, and means to cause saidmarla-ers in all of their adjusted positions to exert yielding pressure against the edges of said fabric in the plane of said fabric.

5. In a mechanism of the class described, means for imparting longitudinal movement to a web of fabric, a rotary mark-er mounted to engage the edge portion of said fabric, means to impart different peripheral and lineal velocities to said marker and fabric while establishing a fixed relation between the angular velocity of said marker and the lineal velocity of said fabric.

6. In a mechanism of the class described,

means for imparting longitudinal movement to a Web of fabric, a rotary marker mounted to engage the edgerportion of said fabric, means independent of the. relative periplr eral and lineal velocities of said marker and fabric to impart one revolution to said marker for a predetermined amount of longitudinal movement of said fabric.

7. In a mechanism of the class described, means for imparting longitudinal movement to a Web of fabric a rotary marker adapted to engage the edge-portion of said fabric, said rotary marker having its axis of rotation at right angles to the plane of said web of fabric, and means actuated by the move-- ment of said fabric for rotating said marker.

8. In a mechanism of the class described, means for imparting longitudinal movement to a Web of fabric, a rotary marker adapted to engage the edge-portion of said fabric, said rotary marker having its axis of rotation at right angles to the plane of said web of fabric, and means independent of the engagement of said marker with said fabric and actuated by the movement of said fabric for. rotating said marker at an angular velocity directly proportional to the lineal velocity of said. fabric.

9. In a mechanism of the class de: -:cribed, means for imparting longitudinal movement to a Web of fabric, a rotary marker adapted to engage the edge-portion of said fabric, and means actuated by the movement of said fabric for rotating said marker at angular velocity directly proportional to the lineal velocity of said fabric but with a peripheral velocity different from the lineal velocity of said fabric.

10. In a mechanism of the class described, means for imparting longitudinal movement to a Web of fabric, a rotary marker adapted to engage the edgeportion of said fabric, and a rotary member adapted to be driven by contact with said fabric and to drive said marker.

11. In a mechanism of the class described, means for imparting longitudinal movement to a Web of fabric, a rotary marker adapted to engage the edge-portion of said fabric, and a rotary member adapted to be driven by contact with said fabric and to drive said marker with a peripheral speed different from the lineal speed of said fabric.

12. In a mechanism of the class described, means for imparting longitudinal movement to a Web of fabric, a rotary marker adapted to engage the cogs-portion of said fabric, and a rotary member adapted to be driven by contact .Ylllll said fabric and to drive s i" marker with a peripheral speed diffc from the lineal speed of said fabric but with an angular velocity having a fixed relation to the lineal velocity of said fabric.

13. In an apparatus of the class described, means for imparting longitudinal movement to a web of fabric, a rotary marker adapted to have direct driving contact With the edgeportion of said web, a rotary friction memer adapted to be driven by said Web, and ge ring connecting said friction member with said maiasr.

let. in an apparatus of the class described, lriving means adapted to impart longitudinal movement to a Web of fabric, a roar marker, means for rotating said marker with an angular velocity bearing a fixed relation to the lineal velocity of say id Web but with a peripheral velocity different from the line il velocity of said web.

15. in an apparatus of the class described, means for imparting longi'udinal movement '0 a Web fabric. a marking roller mounted t th side of the path of movement of said veb, said roller having a recess adapted to engage both sides of the edge portion of said and n cans for supplying filler to the r of said recess.

16. in an apparatus of the class described, neans for imparting longitudinal movement 0 a Web of fabric, a rotary marker mounted -:t the side of the path of movement of said "eh, said marker having i groove in its pe- '1 iery adapted to engage both sides of the e portion of said web, and means for supechanism for applying a filler to the 'e-portion of a fabric comprising a marker ring a groove in its periphery, means for supplying filler to said groove, means for rotating said marker, and means for causing the edge-portion of said fabric topass through said groove with a lineal velocity di ferent from the peripheral velocity of said rlrei l8. chanism for applying a filler to the ed, ortion of a fabric comprising marker k a groove in its periphery, means for en; plyi g filler to said groove, means for rotating said marker, and means for causing the edge-portion of said fabric to pass through said groove with a lineal velocity different from the peripheral velocity of said marh and bearing a fixed relation to the angular velocity of said marker.

19. In an apparatus of the class described, a rotary marker mounted on a vertical axis, said marker having a groove in its peripher and a reservoir on its upper side and dc J extending through said marker from said reservoir and communicating with said groove whereby said groove is supplied from said reservoir, and means for supplying a liquid filler to said reservoir.

20. Mechanism for applying a filler to the edge-portion of a fabric comprising a rotary her having undercut groove in its pcgroove, and means for causing the edge-portion of said fabric to pass through said groove during the rotation of said member.

1 hery, means for supplying filler to said 21. Mechanism for applying a filler to the edge-portion of a fabric comprising a rotary marker having an undercut groove in its periphery, means for supplying filler to said groove, means for rotating said marker, and means for causing the edge-p0rtion of said fabric to pass through said groove with a lineal velocity different from the peripheral velocity of said marker.

22. In an apparatus of the class described, means for imparting longitudinal movement to a web of fabric, a rotary marker moruited at the side of the path of movement of said web, said marker having a recess adapted to engage the edge-portion of said fabric, the interior of said recess being of greater width than the thickness of said fabric and the edge-portion of said recess being of substantially the same width as the thickness of said fabric, and means for supplying filler to the interior of said recess.

23. In an apparatus of the class described, a. rotary marker, part of the periphery of said marker being circular and part project ing radially outward beyond the circular part, there being a recess in said periphery adapted to contain a filler and to convey the same to the edge-portion of a fabric passing through said recess.

24. In an apparatus of the class described, a rotary marker, part of the periphery of said marker being circular and part project ing radially outward beyond the circular part, said rotary marker being provided with a groove extending around its periphery adapted to contain a filler and to convey the same to the edge-portion of a fabric passing through said groove.

25. In mechanism of the class described,

means for imparting longitudinal movement to a web of fabric, a rotary marker adapted to overlap the edge-portion of said web, part of the periphery of said marker being circular and concentric with its axis and part projecting outward radially beyond said concentric part, and means for supplying a marking material to the overlapping part of said marker and conveying the same to said web.

26. In mechanism of the class described, means for imparting longitudinal movement to a web of fabric, a rotary marker adapted to overlap the edge-portion of said web. different parts of said marker overlapping said web to different extents, and means for supplying a marking material to the overlapping part of said marker and conveying the same to said web.

27. In mechanism of the class described, means for imparting longitudinal movement to a web of fabric, rotary markers, yielding in the plane of said fabric adapted to engage the opposite edges of said fabric, and

means for adjusting the distance between said markers.

28. In mechanism of the class described, means for imparting longitudinal movement to a web of fabric, rotary markers, yielding in the plane of said fabric adapted to engage the opposite edges of said fabric, means for adjusting the distance between said markers, and means driven by the movement of said web for rotating said markers.

29. In a mechanism of the class described, a roller adapted to be rotated by a moving web of fabric, a rotary marker, said rotary marker having its axis of rotation at right angles to the plane of said web of fabric adapted to engage the edge-portion of said web of fabric, and means for transmitting the rotation of said roller to saidmarker.

30. In a mechanism of the class described,

a roller adapted to be rotated by a moving web of fabric, rotary markers, said rotary markers having their axes of rotation at right angles to the plane of said web of fabric adapted to engage the opposite edge portions of said fabric, means for transmitting the rotation of said roller to said markers, and means for adjusting the distance between said markers.

31. In a mechanism of the class described, a roller adapted to engage and be rotated by the movement of a web of fabric, shafts slidably and non-rotatably engaging the opposite ends of said roller, bevel gears se cured to said shafts, counter-shafts and coacting bevel gears fixed thereon, radial arms pivoted upon said counter-shafts, otary markers mounted upon said arms and gearing connecting said counter-shafts and r0- tary markers, and means yieldably impelling said markers toward each other.

32. In a mechanism of the class described, a roller adapted to engage and be rotated by the movement of a web of fabric, shafts slidably and non-rotatably engaging the opposite ends of said roller, bevel gears secured to said shafts, counter-shafts andcoacting bevel gears fixed thereon, radial arms piV'-' oted upon said counter-shafts, rotary markers mounted upon said arms and gearing connecting said counter-shafts and rotary markers, and means yieldably impelling said markers toward each other, said markers and counter-shafts beingmounted on carriages 7 adjustable transversely of said web of fabric.

33. A method of applying border marking to a web of fabric which comprises the operation of moving a fabric through a body of the border marking material only engaging the marginal edge portion of the fabric.

Si ned by me at Chicago, Illinois, this l th day of sept, 1922.

DOUGLAS G. HARVEY.

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