Патент USA US2136962код для вставки
NOV. 15,v 1938, I c, R BELK' SIR 2,136,962 TUBE CONTAINER FOR MILK BOTTLE GAPS F'iled Feb. 5,. 1937 Charles 7.2?- 551121, 51: Patented Nov. 15, 1938 2,136,962 UNITED STATES PATENT OFFICE 2,136,962 .. TUBE CONTAINER FOR MILK BOTTLE CAPS Charles R. Belk, Sn, Bessemer, Ala. Application February 5, 1937, Serial No. 124,329 1 Claim. (Cl. 206-46) This invention relates to cardboard tubes de formed, in the usual manner, is then pressed by signed for use in machines for applying card any suitable means to form the recess 4 extend board caps to milk bottles. . Where the caps to be fed in a capping ma 5 chine are circular disks, an ordinary cylindrical tube, of a diameter to ?t in the capping machine, may be used. The tube forming the subject mat ter of this application is intended to package caps of the circular disk type each having a tab 10 or lug extending radially from its periphery to facilitate removal of the caps from milk bottles. Caps of this type require a tube having a cylin drical body of a diameter slightly greater than the diameter of the circular part of the cap, pro 15 vided with a recess extending lengthwise of the body and parallel to the axis thereof to receive the projecting lugs and hold the caps in proper position for automatic feed on to the bottles handled by the capping machine. 20 Since these tubes are commonly made of card board, the provision of the lug receiving recess weakens the tube transversely, and permits dis tortion thereof. Distorted tubes will not ?t the capping machines properly; and consequently will ~25 not permit proper automatic feeding of the cap to the bottles. The main object of the invention, therefore, is to provide a cardboard tube for circular disk 30 caps provided with projecting lugs, constructed to retain their shape throughout their shipment in package form and their use in a capping ma chine. Other objects of the invention will become apparent as the detailed description thereof pro ceeds. ing throughout the length of the tube to receive and form a guide for the lugs 5 on each of the disk caps 6 of the type shown in Fig. 3. While the tube is held in the recess forming machine (not shown), a reinforcing strip 1 of paper, or other suitable material, is pasted over the outer surfaces of the recess 4, and for some distance along the outer cylindrical surface of the 10 sheet I. These different layers of sheet material form veneer plies which materially strengthen the tube and aid in the retention of its shape. In order to brace the projecting ridge 8 formed by the recess 4, a sheet of paper is pasted to the 15 apex surface thereof, and is extended on oppo site sides of the ridge to be pasted or otherwise secured to the cylindrical outer surface of the sheet I. The sheet 9 preferably covers about one half of the cylindrical surface of the tube, and is stretched during the securing operation to form the braces l0 and II. The veneer construction just described enables the tubes to be formed very cheaply of compara tively thin sheets of cardboard or similar ma terial. the length of the tube, forms with the ridge 9 a truss which effectively prevents distortion of the tube, and ensures its proper location on the ?lling and capping machines. 30 What I claim is: A self-sustaining tube, the major portion of which is cylindrical, the minor portion being in the form of a longitudinally extending crimp In the drawing: providing a groove on the interior of the tube and a ridge on the exterior thereof, a strip of Fig. 1 is a fragmentary elevation of a tube reinforcing material secured to and extending constructed in accordance with the present in around the said ridge and from the corners vention, parts being broken away to illustrate details of construction; formed by said ridge along the outer surface ad jacent said corners, ‘and a second strip of rein Fig. 2 is a section taken on the line 2-2 of forcing material secured to the apex of the re Fig. l; and Fig. 3 is a perspective view of a disk or cap inforced ridge and extending from opposite sides of the ridge tangentially to the cylindrical outer of the type which the tube shown in Fig. l is surface of the tube to form therewith a truss 45 designed to package and hold in proper feeding construction to prevent distortion of the tube, said second strip being extended substantially position in a capping machine. As shown in the drawing, the tube comprises a sheet I of cardboard, or the like, spirally wound around and suitably secured to a similar sheet 2 50 to form a tube 3. The cylindrical tube thus 25 The outer layer, extending throughout beyond the lines of contact with said outer sur faces nearest to said ridge and having the parts so extended secured to said outer surface. CHARLES R. BELK, SR.