US17184A - Benjamin f - Google Patents

Description

. UNiTnn STATES PATENT OFFICE.

BENJAMIN F. RICE, OF CLINTON, MASSACHUSETTS, `ASSIGNOR TC BR. SMITH AND C. II. MORGAN.

IMPROVEMENT lN'lVIACHINES FOR MAKING PAPER BAGS, 80C.

Specification forming part of Letters Patentv No. M', E84, dated April 28, 1857.

To aZZ whom t may concern,.-

Be it known that I, BENJAMIN F. RICE, of Clinton, in the county of Worcester and State of Massachusetts, have invented a new or Improved Machine for Making Paper Bags, Tubular File-Sli ps, dsc. and I do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, of which- Figure l exhibits a side elevation of the said machine; Fig. 2, an elevation of the other side thereof; Fig. 3, a plan or top view of it; Fig. 4, a vertical central and longitudinal section of it; Fig. 5, a transverse section of the tube-former c, the same being taken near the first guide p2, to be hereinafter described. Fig. 6 is another transverse section of said former, taken close to the guides Z2 m2, (to be hereinafter explained) and exhibits the said guide and the slot j, through which one edge lof the sheet of paper passes in order to keep the said edge from contact with the paster. Fig. 7 is another transverse section of the tube-former, taken near that end of it which is adjacent to the cutting-knife of the mach'ine. Figs. 8 and 9 are enlarged edge and side views of the linked gearing for operating the feeding-rollers, the same being made to exhibit, by blue lines, the manner in which other or change gears can be applied and used so as to vary the velocity of the feed of the paper, in order to enable the machine to make bags or fileslips-diifering in length from those made by employing but three gears, the said Figs. 8 and 9 showing how four gears maybe employed. Figs. l0 and ll Vare respectively sectional and top views of the expanding tubeformer, the same being constructed so that its width may be increased or diminished as occasion may require.

In such drawings, (t exhibits the bed-plate of the machine, on which are elevated standards (Z (Z for supporting a paper beam or roller q2 and two creasing-rollers n2 o2, arranged as shown in Figs. l, 23, and 4, the said rollers n2 o2 being constructed so that the lower one shall extend up into a space formed around and in the upper of them, as shown in Fig. 4, the length of the cylindrical part of the roller extending up into the upper rollerbeing equal to the length of the space which receives it diminished by twice the thickness of the sheet of paper that is to be run between the said two creasing-rollers.

lVhen the machine is in operation, the roll of paper is wound around the roller q2 and extends upward therefrom and passes between the creasingrollers n2 02, thence under a transverse bar p2 and upon the top surface of a long baror former c, arranged as shown in the drawings. After the paper has been extended on the former c as far as the guides Pm? it is bent around the said former e., so that one edge of it may lap a short distance over the other, the lapping part being extended into a curved slotj, made through the lower guide Z2, as shown in Fig. 6. The paper also passes between these guides and the former e and in a space made between the said guides and former, as shown in Figs. 4 and 6. The slot js serves to keep one edge of the paper away from the paste-roller or paster Z3, which is arranged directly in advance of the guides Z2 m2 and works in a vat or paste-box a3. This paster or roller is made of a width just sufficient to lay upon one edge of the sheet of paper a narrow layer of size or paste, such edge of paper so pasted being pressed between a pressure-roller p and the paster Z3. Aspring t3 serves to force the press-roller firmly down upon the paper, so as to force it in close contact with the paste-roller. 4The sheet of paper continuing forward has its lapping edges carried between feeding-rollers 0 7.53, by which the lapped parts of the paper are pressed together, one edge having been turned up against the otherbefore being passed between the two rollers o 7c3. These rollers not only perform the office of pressing the laps t0- gether, but of drawing the paper forward between the creasing-rollers 'a2 o2 and the former e and its guides. They also feed the paper forward or cause it to project at such distance from the front end of the former e as may be desirable to have it cut off by the knifeblade of, in order that the piece severed may bc of the proper length for either a bag or fileslip, as circumstances may require.

The mechanism for operating the feedroll ers may be described as follows: The main driving-shaftf of the machine (such shaft being shown in Figs. l, 2, 3, fl, and 8) has on one -former c are effected.

, shaft' is such that the circumference of its pitched circle may be in or very nearly in the prolongation of the axis ofthe shaft f. It is important that the arrangement of the pitch-circle with respect vto the axis of the shaft should be borne in mind, for in consequence of it and thepeeuliar operation of the gears a stoppage of the feed-rollers is produced While the cutting-knife r is passing through the tube of paper; and besides this variable motions of the tube of paper ou the The nature of these motions will be hereinafter more particularly described. The gear tu? engages with a gear o2, arranged upon a shaft m3, connected with the Wrist. ofthe crank by a link t2, the shaft m3 being also connected with the shaft g of the lower feed-roller 7c3 by two links M2193, arranged as shown in Figs. 2 and 3. Ou the shaft g is a pinion or?, which engages with the Wheel '112. The result produced by this combination of the crank and linked gearing is that the feed-rollers o 7c3 are caused to remain at rest during about one-quarter of the time the crank takes to revolve; and besides this the paper is started gradually forward and its movement accelerated until one-half the required length to form a bag has been projected beyond the frontend of the tube-former c. Next theforward motion of the paper Will be gradually retarded during the remainder of its forward movement and before the movements of the feed-rollers are stopped. By thus gradually accelerating the forward movement of the paper I may start it at a very slow speed, so as to prevent it from being torn or injured by the inertia of the roller q2. I am also able to gradually arrest the m0- tions of the rollers, so as not only to prevent the paper from being projected too farbeyond the former e, but other evil consequences which might result from sudden stoppage of the feed and other rollers when at high speeds. The knife or cutter r is serrated or formed with saw-teeth, and is attached to radial arms q q, extending from a shaft 7c. A cam ut (shown in dotted lines in Fig. l, and more particularly in Fig. 2) is affixed t0 the main shaft f, and works against a roller l2', projecting from one arm q of the knife r, such cam' serving to elevate the knife and allow it to fall by its own gravity and that of the arms at such time as it may bc necessary in order to cause the knife to properly operate with reference to the tube of paper. The knife makes an oblique cut through the said tube in order to leave the upper part of the tube projecting beyond the other, so as to form the bottom of the bag. In making file-slips, however, the cutter should be made to pass vertically by or at right angles to the from the machine.

j, arranged as shown in Fig. 4.

former c. ly the term lite-slip I niean a short tube of paper as gene 1ally used by merchants and others in filing bills or papers, they being inserted endwise into the tube or file-slip, which serves to hold them together. The cutting-knife may have the edges of each of its teeth made sharp, the bevel being on the underside of the tooth. This inode of making the knife is shown in Fig. 12.

Besides the mechanism for forming the paper into a tube and cutting it into pieces long enough to form bags, each of such pieces is operated upon by other portions of the mechanism whose ofce is to paste and bend down the front end of the bag so as to form its bottom and next discharge it (the bag) For the performance of such operations I make use of a paster s2, a presser r2, and two discharging-rollers m n. The pasters2 consists of a bar affixed to curved arms g2 g2, extended from a horizontal shaft This paster plays into and out of a paste vat or cistern b4, disposed underneath it, and is operated by means of a crank f2, connecting-rod c2 d2 c2, a rocker-arm w, and a cam u. The cam is fixed on the driving-shaft fand works against a roller b3, applied to the side of the arm w. A spring is to be used to maintain the roller up to the cam, such a spring being shown in Fig. 1 as applied to another such arm marked U, and made to turn on the shaft Z. The presser r2 is extended from ahorizontal rockershaft i, and is operated by a crank b2, a connecting-rod y a2 x, the aforesaid arm U, and a cani t, operating against a roller arranged on the side of the arm U. Fig. l exhibits the spring a5 applied to the arm U, and operating to maintain its roller in contact with the periphery of the cam t. The frame h2, carrying the rollers m and n, turns on the shaft t', (see Fig. 4,) and is operated by means of a crank-arm h3, connecting-rod ci f3 g3, an arm d", (turning on the shaft (Z22) a cam c3, (aixed ou the shaft f,) and a spring b5, attached to the arm dit, as seen in Fig. 4.

In order to turn or revolve the dischargingrollers, an endless crossed band 1/2 is made to work around their shafts or pullies thereon, also around a pulley o on the shaft 'L' and a pulleyon tlziedriving-shaft. (See Fig. 3.) The f rame for supporting the operative parts connected with the front part of the former e is seen at l) c. During the movements of the cutter o', and before the bag portion is completely severed from the tube of paper, such bag portion projecting beyond the former c will be clasped between the paster s2 andthe presser r2, by which operation paste will be applied to the front end or part of the paper tube, which should project a short distance beyond and in front of the paster. Next the rollers m and n, with their frame, will be depressed so as to bend down the paper that projects beyond the pastor and stand in a proper position to receive the bag between them when it is nextmoved forward. They in the drawings.

serve the purpose not only of closing the bottom lap down upon the pasted surface, but of discharging the bag from the machine. The rollers m and n are furnished with scrapingbars 112 j?, each ot' which has one of its edges very nearly in contact with one of the said rollers, such bars being arranged as shown They serve to prevent the bag from winding on either of the rollers. Immediately after the paster has performed its ofiice of applying paste to the bag` it descends into the paste-vat h4, and after receiving a fresh supply of paste rises upward into the position necessary for applying paste to the next bag.

What I claim as my invention is 1. A combination or machine composed of machinery for bending a strip of paper around a former e and into a tubular form 'so that one edge may be lapped over the other, as described, machinery for pasting such edges or one of them and closing or pressing them together, and machinery for cutting the tube crosswise, as described.

2. The combination of machinery for bending a strip of paper around a former e and into a tubular shape, so that one edge may be lapped over the other, as described, machinery for pasting such edges or one of them and pressing them together, machinery for cutting the tube slantwise, as specified, while it is on the former or holder, and machinery for pasting or cementin g the said tube near its front end and bending or lapping the end ot the tube on the cemented partso as to form the bottom of the bag and discharge said bag from the machine, as specified.

Arranging the pitch-line ofthe feedinggear 102 in orabout in the prolongation of the axis of the shaft of its crank, whereby I obtain intermittent and variable motions of the paper, as described.

et. Arranging and operating the cuttingknife with respect to the former e so as to cause said knife to cut obliquely across the end of the former and through the tube of paper, as set forth.

5. The combination of the paster, the presser, and ben ding and discharging rollers or their equivalent, the whole being made to operate together substantially as described.

(l. Combining with the rollers m n the mouth-bars or Scrapers 112 jz, applied thereto in manner and for the purpose as stated.

'7. rlhe improved construction ot the cutting-knife, viz., with a serrated edge beveled, substantially as set forth.

In testimony whereof I have hereunto set my signature this 18th day of November, A. D. 1856.

l. F. RICE. Witnesses:

B. R. SMITH, CHAs. Il.. MORGAN.

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