Patent GB-190507827-A (GB)
Title: Improvements in Machines for Bordering and Applying Gum or the like to Surfaces
Inventor: PHILLIPS WILLIAM RICHARD
Filed: 1905-04-12
Granted: 1905-09-21
Abstract: 7827. Phillips, W. R. April 12. Gumming, pasting, and the like. - Relates to machines for applying black or coloured borders to envelopes, notepaper, sheets of paper, or other articles, and which may be used for applying gum or other liquids to parts of a surface other than the borders. The article is conveyed by endless belts beneath fountain-fed rotary brushes, and after being dried is delivered into a receptacle. The machine is shown in elevation in Fig. 1 and in section in Fig. 3, while Fig. 4 shows the rotary brush details. The brushes b, c, d, e, f, g and the fountains for feeding them are similar, as well as the gauges, except that these combinations face alternately in opposite directions. The brush c is supported from the plate 50 in a forked bracket, and is fed by a roller u revolving in contact with it ; supported also from the plate 50 is a basin m, in which the roller u revolves and which can be moved towards or from the brush c by means of a threaded-screw arrangement. A device for causing the liquid to be distributed evenly on the fountain roller and for regulating the supply of liquid to the brush comprises an adjustable forked scraper y, the crotch of which is ground to a knife-edge. The scraper is pivotally supported in the basin m, and may be adjusted by turning the head 3 of a screw bearing upon the scraper. Detachable guards 6<c> are provided to prevent splashing. Each gauging - device for obtaining various widths of border comprises a metallic strip 10 supported on the ends of two rods 12 adjustably held in a bracket carried by the longitudinal guide 181. By moving the strip 10 towards or from the brush, a narrow or wide border is obtained. The strip 10 is constructed so as to allow the article to pass beneath it readily and also to prevent any collection of liquid upon the strip whereby the article might be smeared, and yet at the same time the brush causes the strip to bear tightly upon the work and thus produce a clean edge to the border. The bracket in which the rods 12 are held comprises two parts which may be clamped tightly together by means of a nut 24 on a screw bolt 23. Between the side standards 25 of the machine frame are a series of transverse horizontal members 29, each vertically adjustable and carrying the horizontally and vertically adjustable pairs of rotary brushes and fountains. The member 29 is supported at each end, on opposite sides, in a bracket 35 bolted to the frame, and is slidable vertically. It is raised or lowered by means of a pair of cams 39 on a shaft 40 and trundle rolls 38 on the depending arms 37, the shaft 40 being rotatable by a handle 41. These handles are all connected to a common bar 42 having a handle 43. Each of the webs 29 has a pair of plates 44 adjustable horizontally by means of two screws 46 engaging in the tapped sleeve 45 carried by the plates 44, the plates and webs having a dovetail connexion. The plates 50 are slidably connected with the plates 44, and may be raised or lowered by means of the screws 53 and tapped sleeves 51, the ends of the screws resting upon the tops of the plates 44. A feed-table 61 is slotted transversely, and in the recessed plate secured in this slot is mounted a guiding-plate which may be clamped in any position across the table by means of nuts 67. The guiding-plate has a vertical tongue 65 against which the articles are guided into the machine. The means for conveying the articles to be acted upon consists of a series of belts, some for supporting and others for preventing displacement of the article, the number depending on its width. The main supporting- belt 70 is looped over a pulley on the cross-shaft 83, over a series of pairs of rollers on the shafts 83<a>, 83<b>, around a driving-drum 72, over a pulley 73 on the shaft 83<c> and a pulley 74 on the shaft 83<e>, and back again over the pulley 71. The article is carried between this belt and a superincumbent belt 75 which is looped over a series of rollers 76, a pair of pulleys 77, 77<a>, then with the belt 70 over its rollers and around the drum 72, and then separates and passes back over pulleys 78, 79. A pair of auxiliary supporting-belts 80, 81 co - act with the belt 70, being located on opposite sides of it, and supported on pulleys and rollers on the same shafts as the belt 70, but passing under a pair of tension pulleys 86, over pulleys 85<b>, and under the pulleys 85<d> on the shaft 83<e>. The border article is delivered into a receptacle 105 from the drum 72 by means of a series of cords 102 looped over elongated grooved pulleys 100, 100<a>. A pair of rotary fans 110, adjustable transversely, serve to dry the bordered article after it has passed the last pair of brushes. The belts 70, 75 are guided along their straight path between two guides 180, 181, Fig. 9, adjustable for various thicknesses of articles. Before being acted upon by the brushes, the articles are straightened by passing between guides 191 supported adjustably on rods 193 carried in a bracket secured to the lower belt-guide 180. The belts 80, 81 ride upon the horizontal flanges 190 of these guides 191. The articles on passing through the e straightening- guides are prevented from rising from the belts by resilient plates 200 having their front ends curved upwardly as at 201. They are adjustably supported from rods 203 carried in sleeves 205 secured adjustably to the upper belt-guide 181. To prevent the article from moving when under the action of the brushes, a series of pressure devices is provided. The upper guide 181 is cut away so as to allow a spring-pressed roller to act upon the upper belt 75 and thus to compress the article between the two belts, while the brushing operation is going on. The brushes, fountains, conveyers, and fans are driven from a driving-pulley 125 adapted to be connected to its shaft 126 by a clutch 127 operated by a lever 128 and link 129. The countershafts 141, 142, driven by bevel-gearing through the pulley 135, communicate motion to a series of six sprocket-wheels 145, 146 on each side of the machine, the wheels being alternately fast and loose upon the shafts 141, 142. Motion is imparted to the sprocket-wheels 253 by means of chains 147, tension rollers 153, 154 being provided. Similar tension devices are also provided to tighten the belt 75. The rollers 76, 76<a>, 77<a>, 77, 78, 79 are formed with grooves to receive auxiliary cords 172 adapted to run with the belts 75, while a series of pulleys aid the belt 70. These cords may be dispensed with when desired, and a flat belt substituted. For varying the speed of the brushes without altering that of the belts, the pulleys 130, 135 are stepped, the brushes being driven from the sprocket-wheel 253 by the pulleys 252, k, and the fountain rollers by the pulleys 251. v. Power is transmitted to the drum 72 by a train of wheels 300, 301, 302, 303, 304, 305, from the drum to the shaft 83<e> by gears 306, 307, and from the shaft 83 to the 831 by gears 308,309. In order to border the ends of the sheets, they must be run through the machine again, one set of pulleys and rollers being adjusted on their shafts to accommodate the different width of article.