US439703A - Paper-bag machine - Google Patents

Description

(No Model.) 7 Sheets Sheet 1.

N. W. TAYLOR.

PAPER BAG MAGHINE.

No. 439,703. Patented Nov. 4, 1890.

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PAPER BAG MAGHINE.

No. 439,703. Patented Nov. 4, 1890.

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PAPER BAG MACHINE. No. 439,703. Patergted Nov. 4, 1890.

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U ITED STATES PATENT OFFICE.

NEWTON W. TAYLOR, OF CLEVELAND, OHIO.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 439,703, dated November 4, 1890. Application filed January 14, 1890- Serial No. 336,902. (No model.)

To all whom it may concern.-

Be it known that I, NEWTON W. TAYLOR, of Cleveland, county of Guyahoga', State of Ohio, have invented an Improvement in Paper-Bag Machines, of which the following description, in connection with the accompanying drawings, is a specification,like letters and figures on the drawings representing like parts.

This invention has for its object to improve that class of machine adapted for the production of a square-bottomed bellows-sided bag, my improvements relating chiefly to means for forming the bottom of the bag and laying the folds therein accurately and rapidly.

In accordance with my invention a tube having bellows, or plicated sides, as it is called, is made in any usual way by any usual well-known mechanism. The bellows-sided tube, in the formation of the square bottom, is entered by a suitable nose or finger which acts upon the inner part of the upper ply'of the tube, while the tube is acted upon across its upper side by the main folding-blade. With these common devices I have combined radial folding-plates which enter and remain in the plicated folds at the outer or side edges of the tube, the said plates occupying a position below and in advance of the main folding-blade when the latter is thrown down. on the tube to tuck or fold it under the usual nose or finger which enters the tube and acts on the upper ply thereof to form the diamond fold, the inclined edges of the said plates nearest the leading end of the tube being sufficiently in advance of the said main foldingblade to enable the said plates as the upper ply of the tube is being turned back to define the position of the radial creases in the diamond fold nearest the leading end of the bag, the said plates being moved forward in unison with the main folding-blade, while the nose acts to turn the upper ply of the tube back, for it will be understood that at such time the forward feeding movement of the tube is not suspended, and therefore the said plates and main folding-blade must have a slight forward movement in unison at the speed of movement of the tube. I have also added to the said parts radial wipers which enter the plicated folds, and are made to move therein in adirection opposite that of the movement of the tube through the machine, the said wipers being moved in such direction or having their effective stroke only after the upper ply of the open leading end of the tube has been turned back over the main folding-blade by the nose or finger, the said effective wiping movement of the wipers being at such time in a plane above the plane occupied by the main folding-blade, the said radial wipers forming or defining the radial folds in the bottom of the bag most remote from the leading end of the tube. I have combined with the wipers referred to, which act to form the radial creases in the rear part of the diamond fold, mechanism whereby the resultant movement of the said wipers is in a diagonal rather than in a curved line with relation to the longitudinal center of the tube.

Figure 1 is a top or plan viewof a sufficient portion of a paper-bag-making machine to enable myinvention to be understood, the radial wipers and their actuating devices shown in Figs. 6 and 7 being omitted; Fig. 2, a vertical longitudinal'section thereof in the line a: m, Fig. 1'; Fig. 3, a cross-section and elevation in the line :0 Fig. 2,1ooking'to the left, the paste-roll and the tucker-roll underit being omitted. Figs. 4 and 5 are views to be referred to of some of the actuating-cams. Fig. 6 is a plan view of the radial wipers removed from Fig. 1 and actuating mechanism therofor; Fig. '7, an elevation of the parts shown in Fig. 6, l'ooking in the direction of the arrow 100, said figure showing the radial folding-plates and the table-plate; Fig. 8 is plan view showing the tube, the main folding-blade, the radial folding -plates, the wipers, and part of the nose. Fig. 9 is a longitudinal section thereof. Fig. 10 shows the parts represented in Fig. 8, but in other positions, the diamond fold having been laid for the bottom of the bag, the said figure showing all the nose. Fig. 11 is a section of' Fig. 10 in the line a but with the pasting-roll and the rolls and tucking-blades employed to make the first and second cross-folds in the diamond fold, part ofthe nose being brokenoff. Fig. 12 shows the diamond-fold laid in the leading end of the plicated tube, part of the bottom being broken out to better 'show the radial folds of the plicated sides of the bag, they being at right angles to each other,

and radial to the center of the bottom. Fig. 13 shows a bag, it having a diamond fold made in it, and thereafterpartially opened at one end, the diamond or corner flaps not being folded down. Fig. 14 shows one of the sleeves carrying one of the actuating rack-bars for the wipers. Fig. 15 shows the hollow post; Fig. 16, the nut which holds the sleeve on the post, and Fig. 17 a perspective detail of the yoke and one of the radial folding-plates and a link 97.

The frame-work A is and may be of suitable shape to sustain the working parts.

The rolls D D, the former having cuttingblades (1 (see Figs. 1 and 2,) while the latter has diagonal blades 6 and longitudinal slitcutters d to cut the slits 101 (shown in Fig. 8) from the lip-slot 102 made in the tube by a roll (not shown, but common in paper-bag machines) are both the same as like rolls designated by like letters in United States Patent No.332,631,dated December 15, 1885; andIdesire here to state that the two final foldingblades 10 12, the arms to which they are attached, the final folding-rolls G E E, and the pasting-roll G are and may be all substantially as in the said patent, and in practice they will be actuated in substantially the manner described in the said patent. The main foldin g-bladep, the curved slotted gui deways 59, in which the journals at the ends of the said blade travel, the links 58, one at each end of the said blade, the curved lever-arms 57, attached to the rock-shaft 56, the movement of which actuates the main foldingblade, and the nose or finger 0, attached, as as herein shown, to a cross-bar 0 are and may be all substantially as in the Knight patent, No. 220,925, dated October 28, 1879.

The carrying-belt c to take away the finished bag dropped from between the rolls E and G and the shaft 0 for moving it are both common to paper-bag machines.

I will now describe my improvements, which I have added to the parts so far specifically referred to.

I have provided the machine with a tubular shaft A having an enlarged central part A, which latter part surrounds the rockshaft 56, the said enlarged part being slotted for a part of its periphery at two places a for the passage of the arms 57.

In the machine to be herein described the shaft 56 referred to is extended at one end out beyond the said hollow shaft A, and receives upon it an arm B having a roller or other stud B which roll enters a groove cut in one side of a cam-wheel 0", fast on one end of the shaft 99, carrying the roll G, the said cam giving motionto the main folding-blade 1) described. The hollow shaft A at one end has an arm D provided with a suitable roller or other stud d which enters a cam-groove cut in one side of a cam-wheel E also fast on the shaft 99 referred to, the said shaft being shown broken out in Fig. 5 to save space on the drawings. The hollow shaft A has two arms 98, connected by links 97, (shown best in Fig. 3 and in the detail, Fig. 17,) the said links being joined to a sliding yoke 96, (shown also in said Fig. 17,) the said yoke being fitted into guideways 95 on a stationary post 94, the table-plate 93, on which the paper tube t rests, while the diamond fold for the bottom of the bag is being made, being bolted to the said post. The sliding yoke has risers w extended up to a little above the level of the table-plate 93, and to each of these risers is attached one of the like radial folding-plates F, the shape of which is shown best in Figs. 1, 6, 8, and 17, they being also shown partially by full and dotted lines in other figures.

It will be understood that the bellows-folded tube 25, plicated at its edges (see Figs. 8 and 10) and surrounding a former 2?, is fed therefrom in usual manner upon the table-plate and to the nose 0. These radial folding-plates F, so named because they define by their edges 92 some of the radial folds in the bottom of the bag, enter and always remain in the plicated fold, the said-plates having a longitudinal movement therein of about an inch, (more or less,) they moving forward in unison with the main folding-blade and at the same speed as the blade and the feeding movement of the tube, while the said nose or finger acts underrthe upper ply of the leading end. of the tube to lay it back in the formation of a diamond fold. In practice the edges 92 of the said plates, beveled to correspond with the angle of the radial folds 202, made in the lower ply of the tube and diagonally across the lower half of the plicated part of the edge of the tube in the formation of the square bottom, are defined by the edges 92, which hold down the lower half of the plicated fold, while the nose 0 acts. to turn the upper ply back over the main folding-blade p.

In practice the main folding-blade in its descent upon the tube to hold the samewhile the tube is fed upon the nose or finger c, as in Figs. 8 and 9, and cause the upper ply of the tube to be laid back in the formation of the diamond fold, as in Figs. 11 and 12, stops in its forward movement at about the inner ends of the inclined edges 92, as best shown in Figs. 8 and 10, so that the edges 92 act to define the radial folds or creases 202 in the plicated fold next the leading end of the tube. The upper ply having been laid back by the nose over the main folding-blade, it becomes necessary to define or crease smoothly the radial fold 203 in the upper half of the plicated fold, and to do this I'have provided the machine with the like radial wipers 91, which are shown in their normal position by dotted lines in Fig. 8, other intermediate positions being shown by full lines in said figure and Fig. 6, and their extreme positions in Fig. 10.

The side frames of the machine (shown partially in plan view, Fig. 1) has bolt-holes 90 to receive suitable bolts 89, by which to ICC attach to the frame the feet of stumps or hollow posts 88, threaded at their upper ends, as shown in the detail, Fig. 15, to receive a nut 87, which acts to keep down on said stump a sleeve 86, shaped as best shown in the detail, Fig. 14, the nut acting against the shoulder 85 of the sleeve. Each sleeve 86 at its lower end has an arm Set, provided with a roller or other stud 83, which enters a cam-groove in a hub 82, fast on the end of a rotating shaft 81, the said cam oscillating the sleeve. The upper end of each sleeve has a horizontal bracket or arm having a passage 79, (see Fig. 14,) for the reception of a rack-bar 78, preferably made partially cylindrical, the said sleeve or its arm having bearings 77 and 76, the former to receive the upper end of a rockshaft 75, provided at its upper end with a pinion 7 3, to engage the teeth of the said rack-bar near its outer end, the bearing 76 receiving a short rock-shaft 72, to .which is attached at its lower end a radial wiper 91, the upper end of the shaft 72 having a pinion 71, which is engaged and actuated by the teeth of the rack-bar. The shaft 75, extended down through the hollow post- 88, has at its lower end an arm 69, provided with a roller or other stud 68, which enters a cam-groove in a cam-hub 67, fast on the shaft 81, the said cam rocking the said shaft, and in so doing reciprocating the rack 78 and oscillating the rock-shaft 7 2,with its attached radial wiper 91. By means only of therock-shaft and rack the movement of the outer end of the radial wipers would be in the arc of a circle; but inasmuch as the fold 203 to be creased or defined in the upper half of the plicated fold is a radial straight line such curved movement of the wiper would not answer, and to move the said wiper in a radial line I at the same time rock the sleeve 86, the resultant movement of the parts being such as to cause the inner ends of the wipers in contact with the tube above the main folding-blade to travel in the dotted line 2, Fig. 10. The main folding-blade comes down upon the top of the tube having plicated sides and above the radial folding-plates, standing always in the said plicated sides, and at the time that the main folding-blade contacts with the tube the radial folding-plates are moving in the direction of the feeding movement of the tube, and while the nose operates to turn back and over the upper ply of the leading end of the tube the said blade and plates move forward substantially in unison, the forward movement of the blade and plates stopping as soon as the diamond fold is fully laid. Each radial wiper 91 is moved toward the side of the tube, so as to enter the plicated fold just about as the nose commences to act to turn the upper ply of the tube back over the advancing main folding-bladep, the wiper being moved substantially from the position shown in Fig. 8 by dotted lines to that shown in Fig. 6 by the time that the radial folding plate and blade reach their forward stroke.

The feeding of the tube may be effected in any usual manner, so long as it is substantially continuous, as in the Appel patent referred to, and the bag is fed by the final foldrollers described.

The machine herein described will be pro vided with any usual former, as 1?, (partially shown only in Figs. 8 and 9,) it being of any usual or suitable or well-known shape for guiding a bellows-folded or plicated tube t, the end of the former nearest the end of the finger 0 preferably having a spring-arm or device common to the Appel and other patents to aid in directing the open end of the tube upon the finger or nose 0.

Believing myself to be the first to employ at the outer side of a bellows-folded tube. a radial fold-wiper, I do not desire to limit my invention to the exact form or shape of such wiper or its actuating devices, so long as the wiper has a radial movement with relation to the square bottom of the bag, as described; and prior to my invention I am not aware that a radial folding-plate has ever been employed and permitted to permanently remain in the plicated fold; nor have such plates ever been used, so far as I am aware, in connection with radial wipers acting only on the outer side of the tube and moving backwardly in a direction opposite the feeding movement of the tube.

I claim 1. Atable-plate to support abellows-folded or plicated tube, a nose or finger to enter the leading end of the tube, and a main foldingblade, combined with radial folding-plates extended partially across the said tableplate and remaining in the plicated folds of the tube under the main folding-blade, and means for moving the said folding blade and plate in the direction only of the length of the tube, substantially as described.

2. A table-plate to supporta bellows-folded or plicated tube, a nose or finger to enter the leading end of the tube, a main folding-blade, and radial folding-plates located outside the tube, but within the plicated folds, combined with rock-shafts 7 2, the radial wipers attached thereto, swinging arms in which the ITO said shafts have their bearings, and means Witnesses:

J AY ODELL, JOHN DENMAN.

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