US1969849A - Blank-making - Google Patents

Description

C. D. KNOWLTON Aug. 14, 1934.

' BLANK MAKING Original Filed Sept. 8, 1930 2 Sheets-Sheet l A VE/VTUR' mm Mm g- 14, 1934- c. D. KNOWLTON I 1,969,849

BLANK MAKING Original Filed Sept. 8, 1930 2 Sheets-Sheet 2 Fig. 2

Patented Aug. 14, 1934 UNl'lED STATES 1.969.848 BLANK-MAKING Cutler D. Knowlton. Beverly, Mal... alrignor to Hoague-Sprague Corporation, Lynn, Mala, a corporation of Massachusetts Original application September 8, 1980, Serial No.

480,518. 1932, Serial No. 808,803

Divided and this application April 21,

9 Claims. (01. 93-66) My invention concerns the making of blanks, having especial reference to the production of blanks from'which are to be formed boxes such as are used for containing pairs of shoes.

In an application filed in my name in the United States Patent Qflice on September 8, 1930, bearing the Serial No. 480,518, of which vthe present case is a division, thereis described an apparatus in which webs of material are ad- 10 vanced continuously through successive mechanisms for various forming operations. These webs include one of pasteboard or other shellmaterial, furnishing the body of the blank, and one or more others, of paper or the like, by

which the longitudinal shell-edges are stayed. An object of this invention is to provide for an unceasing supply of this stay-material to the shell-material and in the correct relation transversely of the latter.

go With this object in view, a feature of the invention may be found in an apparatus having a support for shell-material and mechanism for operating on such material, together with s rotatable carrier arranged to receive a plurality of reels of stay-material positioned for co-operation with a margin of the shell-material and to be applied thereto during its advance, and means for securing the carrier with one reel in position for delivery to the margin of the shell-material go and another reel ready for transfer to the delivering position. There may thus be kept always ready for combination with the shell-material a reel of the stay-material, a latch being shown for selectively holding one reel or another 3' in the delivering relation. To facilitate the splicing of the stay-material from a reel-coil approaching exhaustion to afull coil, so the formation of the blanks may go on without interruption, I associate with the carrier pressure means, as a pair of rolls, through which the stay-material travels from its reel to the operating mechanism and prior to its application to the shell-material. This promotes more perfect adhesion of the splice without delaying the advance of the web. To product proper registration of the reel and its contents in use with the margin of the shell-material, each of the reels maybe movable transversely of the path of the stay-material, as by mounting them upon 5 spindles projecting from carrier-arms and providing means, for example a screw threaded into each arm and having a portion engaging a slot in the spindle, for moving the reel longitudinally of its spindle.

. 56 A further feature of the invention involves a stay-material while its delivery and combination v with the shell-material continue, and connect the end of the unusedcoil of stay-material to that advancing fromthe companion coil. The necessary registration may be established between the stay-material and the margin of the shell-material to which it is to be applied by moving the stay-coil transversely of the web of shell-material. In making the connection between the diminishing coil and fresh coil, an adhesive is best used, and the connection is subjected to pressure, as to the action of pressure members, to promote adhesion, and the web .of the diminishing coil is preferably severed after said connection has passed the pressure members. At such time, a firm union has been established, and the act of separating the unused end from the advancing material will not disturb it.

One of the several possible embodiments of the apparatus of my invention is illustrated in the accompany drawings, in which Fig. 1 shows my improved reel-support and associated elements in broken side-elevation;

Fig. 2 is an enlarged broken side-elevation of I the support and gluing mechanism, with the reels and their coils in positions different from Fig. 1;

Fig. 3 is a perspective view of the latching device for the reel-support;

Fig. 4, a transverse sectional detail illustrating, the adiusting means for the reel-support; and

Fig. 5, a broken side-elevation bringing out the final step in the splicing of the web.

Mounted to turn upon a support 106 is shown a coil B of pasteboard or other shell-material b which is to enter into the formation of boxblanks. This is advanced continuously through the blanking apparatus, of which only portions are disclosed herein. As one of the steps in the production of the blanks, there is adhesively attached to the opposite margins of its upper face a stay-web e, which may be of kraft or other strong paper delivered from a coil E and coated with glue at a mechanism J. Through this mechanism, the stay-web is drawn and joins the shell-web at assembling mechanism 1, which has oppositely rotating rolls 362 and 364 arranged to press the webs together to perfect the adhesion, and at the same time to feed them forward for other operations. The present invention deals only with the manner of supporting, manipulating and delivering the staylatch 1'78'pivoted upon the bracket and ur ed into its retaining position by a spring 179, allow either arm to be maintained uppermost. Extending horizontally from the outer extremity of each arm is a spindle 180, about which turns a reel 182 for the stay-material, the reel being removably retained in place by a screw 184 threaded into the outer end of the spindle. To

- adjust the reels so the strips will run of! in the proper directions and. register with the corresponding margin of the shell-material to which they are to be applied, each arm 1'72 has a screw 186 threaded into it-parallel to the axis, this screw having a head and finger-piece 188 entering a slot 190 in the associated spindle. As the screw is rotated and, therefore, its head carried toward or from the arm 1'12, the reel-spindle is correspondingly shifted to create the desired alinement. From the reel, the stay-material passes about a guide-roll 326 and then travels in contact with the upper portion of a rotatable applying roll 302 of the mechanism J, this being supplied with an adhesive from a trough 290 by a rotatable roll 300 deliveringto its lower portion. The under side of the strip e is thus coated for the attachment of the inner portion to the upper face of the shell-web b.

As illustrated in Fig. 1 of the drawings, the reel carrying the coil E of stay-material which is being delivered to the shell-web b is at the top of the support, retained by the latch 178. When the coil upon this red is approaching exhaustion, the latch is lifted and the arms 172 rotated in a counter-clockwise direction, the drawing-01f of the stay continuing during this movement. A fresh coil E has been applied to the arm which was beneath but which is now raised. The end of this new coil of stay-material may have attached to it a glued connectingstrip 11 of paper. The strip e from the coil E 'enters the gluing mechanism J between a pair of rolls 189, 189, the upper of which is shown as yieldably mounted upon pivoted arms 191- and urged toward its companion either by gravity or a spring. Just before the end of the old coil is reached, the operator secures to it the extremity of the new coil by the piece 11 (Fig. 2), and allows the thus-formed connection to pass through the rolls 189. The pressure of these rolls perfectsthe adhesion of the connector and stay.

As the glued joint emerges from the rolls, the operator tears off the end of the old coil, removing the short piece which remains (Fig. 5). The end of the new coil travels on joined to the forward portion of the old coil. In such a splicing operation,- if the operator is skillful, he may permit the whole of the old coil to run off its reel, connecting its extreme end to the coil which replaces it. The delivery of stay tc the shell-web is thus continuous. There is shown. arranged to bear upon the upper coil of staymateriai, a brake device, to maintain the strip e under tension. This may consist of an arm 192 pivoted on the frame and having a shoe 194 of felt or the like for contact with the periphery of the coil.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a blank-making apparatus, a support from which shell-material is delivered. mechanism for advancing the delivered material, a rotatable carrier arranged to receive a plurality of reels of stay material positioned for cooperation with the shell-material and to be applied to said shell-material during its advance, means for securing the carrier with one reel in position for delivery to the shell-material anclanother reel ready for transfer to the delivering position, and pressure means through which the stay-material travels from the plural reels to the advancing mechanism and prior to its application to the shell-material.

2. In a blank-making apparatus, a support from which shell-material is delivered, mechanism for operating upon the deliveredmaterial, opposite revoluble arms, a latch arranged to secure the arms in opposite positions, a reel for stay-material for application to the shell-material rotatable upon each arm, and a pair of rolls between which the stay-material travels from one of the reels to an operating mechanism and prior to its application to the shell-material.

3. In a blank-making apparatus; a support from which shell-material-is delivered, mechanism for operatingupon the delivered material,

a rotatable carrier arranged to receive a plurality of reels of stay-material to be applied to the shell-material, means for securing the carrier with one reel in position for delivery of the shell-material and another reel in position ready for transfer, and means arranged to adjust each reel individually transversely of the path of the stay-material into registration with the shellmaterial.

4. In a blank-making apparatus, a support from which shell-material is delivered, mechanism for operating upon the delivered material, opposite revoluble arms, a spindle projecting from each arm andbeing movable therein, a reel rotatable about each spindle and arranged to carry stay-material for application to the shell-material, and means carried by each arm and arranged to engage the corresponding spindle and move it longitudinally.

5. In a blank-making apparatus, a support from which shell-material is delivered, mechanism for operating upon the delivered material, opposite revoluble arms, a spindle projecting from each arm and being movable therein and provided with a slot, a reel rotatable about each spindle and arranged to carry stay-material for application to the shell-material, and a screw threaded into each arm and having a portion entering a corresponding spindle-slot.

6. The method of applying stay-material to -shell-material, which consists in continuously advancing a web of shell-material, interchangea bly supporting two coils of stay-material, delivering the stay-material from one coil and combining it with the shell-material until said coil approaches exhaustion, reversing the positions of the coils of stay-material while its delivery and combination with the shell-material continues, and connecting the end of the unused coil of stay-material to that advancing from the companion coil.

7. The method of app ying stay-material to shell-material, which consists in continuously advancing a web of shell-material, interchangeably supporting two coils of stay-material, delivering the stay-material from one coil and "com-- coil approaches exhaustion, reversing the positions of the coils of stay-material while its delivery and combination with the shell-material continues, connecting the end of the unused coil of stay-material to that advancing from the companion coil, and moving the coil of stay material transversely of the web of shell-material to establish its registration therewith.

9. The method of splicing web-material during operations upon it, which. consists in interchangeably supporting two coils of web-material, delivering the web from one coil until it approaches exhaustion, reversing the position 01 the coils while delivery is maintained, connecting the end of the unused coil adhesively to the web advancing from the companion coil, subjecting the connection to the action of pressure members, and severing the web between the con-- nection and the companion coil after said connection has passed the. pressure members and during the continued advance.

CUTLER D. xNowL'roN.

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