US1610599A - And tensioning device - Google Patents

Description

Dec. 14

B. M. BOYD WEB ALIGNING AND TENSIONING DEVICE Filed April 21. 1925 2 Sheets-Shes: 1

Dec. 14 1926. 1,610,599

v B. M. BOYD WEB ALIGNING AND TENSIONING DEVICE Filed April 2 1925 2 Sneets-Sheet 2 iiil ream d Dec. 14, rare.

BLAN ION' BOYD, GTNCINNATI, OHIO, ASSIGNOR TO THE GLOBE REGISTER COM- IEANY, CINCINNATI, 01-110, A CORPORATION OF OHIO.

WEB ALIG-NING AN D TENSIONING DEVICE.

Application filed April 21, 1925. Serial No. 24,885.

This invention is particularly intended for usage in connection with such machines as manifolding typewriters, registers and the like and is designed with the object of producing .a device in which perfect registration of a series ofsuperposed for1n-printed webs may be obtained, together with the advantages to be obtained by a measured delivery. feed in which all air pockets between adjacent web s are eliminated and in which perfect impression of thetype is secured in printing the superposed forms. I A further object lies in the elimination of web buckling and wrinkling as well as in the prevention thereby of allstencilicutting of,

the type in printing upon the superposed webs. An additional feature lies inthe simultaneous provision of "a means for cutting the attached printed forms from one another, as a part of the mechanism by means of which web alignment is secured simultaneously with the elimination of air pockets, web buckling, stencil cutting of the type, etc. I v

These andother objects are attained in the device described in the following specification and illustrated in the accompanying drawings, in Which: I

1 is ajperspective view of a device embodying the invention, in conjunction with a form of manifolding typewriter in common use.

Fig. 2 IS an enlarged perspectlve view,

partially in fragmental section, of the main portion of the invention.

Fig. 3 is an enlarged'fraginental perspective view of a portion of the apparatus shown in Fig. 2. i

. Fig. l is a .fragmental perspective view of a portion of the apparatus shown in Fig. ,2, the parts beingshown in different positions. I 1

Figs. 5 and 6 are fragment-a1 perspective 'views of the cutting and alignment securing mechanism in two positions.

Fig. 7 is a somewhat diagrammatic view of .the device employed for operating the cutting and alignment securing mechanism.

Fig. 8 is a small perspective view to illustrate the arrangement of the webs and interleaved ca'rbonsheet as used in the invention.

The embodiment of the invention has been chosen as having particular adaptation to a form of typewriterwhich is in common use and which employs astationary platen over which a relatively movable typewriter printing mechanism moves during thewriting' be used independently thereof, in which the mere use of hand writing will permit the invention to function to ust as great an advantage.

A stand of well known design, has been employed to support the usual stationary platen 9 embodied in; this style of stand. Over this platen the usual typewriter 1O operates, and between the platen and the writing mechanism a series of superposed webs of paper 11 are located. These webs aretaken from a source of supply which consists ofa suitably mounted. roll 12 located beneath the platen. In order to provide for the passage of the webs from roll 12 onto the platen in a manner which constitutes an important feature of the invention, the frame which supports the platen is extended rearwardly as two supporting arms 13 and 14. Between these arms a roller carrying unit is mounted. This unit consists of two side bars 15 and 16 which carry a series of shutters or slats 17 which are rigidly attached to the side bars. Above these slats are located a series of rollers 18, one roller being located above each slat. Each end of each roller is located in a slot 22 located above each endof each slat,'the slot being inclined upwardly from its rear to the front end as shown. The position of the rollers when at the rear of the slots is such that they rest upon the slats and when they are moved to the front of the slots they are lifted upwardly somewhat to clear the slats and at the same time move sufliciently far forward to lie materially away from or in spaced relation to the slat which cooperates with each one. In order toaccomplish the movement of the rollers manually, there has been provided a sliding bar 19 within each of the side bars 15 and 16. This bar is provided with lugs 20 which extend upwardly back of thespindles 21 which journal the rollers in the slots 22. Upon each roller spindle a spring ,23is fastened, the opposite ends of'the springs being located back of the spindles somewhat so as to bring about a tendency of the rollers to be held rearwardly yieldingly. Now, in order to bring about the forward movement of the rollers by creating a forward movement of each bar, a rod 2el has been provided. This rod is mounted for the sliding of its ends in l.-.shaped slots 25 in the side frames, while the ends of the bars 19 have short vertical slots 26 to receive the ends of the rod 2a in order to permit the rod to draw both bars forwardly and to lock them in this forward position by pressing it downwardly in the slots 26 and the vertical portions of slots Thus, when moved forwardly, the bars 19 will draw the rollers forwardly and hold them in this position free of the slats, as shown in Fig. l. The slats 1'? which cooperate with the rollers 18 are spaced apart as shown, and are each provided with a slightly raised and roughened spot 2? at ach end so that the roller contacts with these spots only. The purpose of this will be explained later. In order to support the large roll of multiple wound web stationery 12, which constitutes the subject of application for United States Letters Patent serially numbered 7%,869 and tiled September 30, 1924:, by Alphonse E. linbus, a spindle supporting trapeze 28 has been provided. The spindle 29 of this trapeze supports the roll 12, while the trapeze is supported in turn from its upper bar 30 by means of hooks 31 on the under faces of the side bars 15 and 16.

At the forward edge of the web supporting platen two pins or hooks 32 and 33 are located, with their ends extending forward ly so that after the spaced apertures 34 of the webs are placed over these hooks they may be drawn backwardly without danger of them becoming disengaged therefrom, this backward movement being effected in the manner and for the purpose to be hereinafter described.

To aid in placing and retaining the web apertures upon the hooks 32 and 33 there has been provided an apertured tearing or cutting knife 35, the apertures 36 and of which are. so placed as to permit the knife to be brought down upon the platen with the hooks projecting through the apertures. This knife is fastened to arms which are pivoted as shownin Figs. 5, 6 and 7, so that it may be brought with its sharp edge down upon the forward edge of the platen, in clamping engagement with the webs thereon and in position to permit of their bein torn off along this edge after one set of form printed web sections have been filled in and drawn forwardly from the platen to provide a fresh set on the platen. Operation of the knife is secured through the foot treadle 38 as shown in Fig. 7.

In order to prepare the illustrated embodiment of the invention for operation the first thing necessary is to place the roll of stationery upon the trapeze spindle and to then hang the trapeze upon the hooks 31,

shown in Fig. 1. .he webs are then unrolled from the roll sufiiciently to permit them to be passed over the platen. This is accomplished by first drawing the rollers 18 forwardly and locking them in this position by means of the rod In this position the rollers have been brought to and held in the position shown Fig. in which a space is opened between each roller and its cooperating slat. The first web to be then placed upon the platen is the forwardinost web 39. This web is passed upwardly between the forwardn'iost roller 13* and the cooperating forwardmost shutter l7 through the space 40 which exists between them. The web is hen brought forwardly over the roller and upon the platen with the apertures ts end placed over the hooks 32 and 33,

beneath knife Each succeeding web is teen taken and passed between each succeeding cooperating roller and shutter and in turn is laid upon the preceding web which has been placed upon the platen after a strip of carbon paper ll, see Fig. 8, from a side positioned roll 42, ee Fig. 1, has been placed upon the preceding platen-supported portion of each web, the apertures in the end of each succeeding web being brought to engage the books 32 and 33. After all the webs have thus been placed in position, the rod 2& is pushed upwardly to release the rollers. This allows the springs 23 to carry the rollers to the rear and to carry with them the portion of the webs upon the platen until the slackness therein has been taken out to cause them to lie flat on the platen. Felling of the rollers upon only the platen supported portions of the web is occasioned by reason of the web snubbing action which takes place between each roller and its 00* operating shutter at the time when the roller has moved back far enough to grip the web between it and the shutter. This then locks that portion of the web which lies between the roller and the shutter so that the backward movement of the roller will operate only upon the portion which lies upon the platen. Thus the tension placed upon the webs by the rollers will operate to take out all slack existing in the platen supported portions and will at the same time bring about any slight rearward motion necessary to bring the forward edge of each aperture against the hook and thus align the correspondingly spaced printed forms on the superposed webs. After such a rearward adjustment the knife 35 is lowered to clamp the webs together. Thus an additional function of pressing the sheets into intimate contact is performed, with the result that all air pockets :ietween the superposed webs are removed. Notable advantages resulting heavy impression produced as well as in the total elimination of any tendency for the type of the typewriter to stencil cut through the material of the web.

Should'a roll of stationery, such as has been shown, embody certain webs which are of a less width than othersof the webs, in which event perhaps but one of the'aligning hooks 32 or 33 are employed, but one side bar or 16 would perhaps be used as a guide for such narrow webs, In order,'therefore, to provide for the holding of such narrow webs in the proper position, a small guide plate al I 43 may be secured, as for. example beneath 'the slat' over which the narrow web is to pass, as shown in Fig. 3.

And now, the purpose of the raised spots 2'? of the slats will be described. In'all paper stock, and particularly in paper stock of certain grades, there exists considerable bulging or buckling. This is occasioned by the fact that in themaking of such paper the ,q'ualit weight, and conseqnentthiclrness of the web will vary in spots. Sometimes these inequalities occur at intervals along one edge of a web and sometimes alongboth edges, while frequently they are just as likely to occur at points between the edges. In such an event any attempt to pass defective webs of this nature between a fiatsurface, such as one'of the slats 1'7, and a strzughtsurface, such as one ofthe rollers 18 would create a wrinkled web which would result in imperfect copies, misalignment and possible tearing orcrumpling of one or more of the superposed platen supported portions of the webs. such 'a buckled or edge stretched web be held at points widely separated, so as to allow of freedom'of the remainder of the web between these points to find its own position, there can be no wrinkling, crumpling, tearing or imperfect copy work produced on the superposed webs. Such a condition is brought about by the provision of the raised spots 27 of the slats.

It will now be assumed that the device is in conditionto operate and-that the webs have been so positioned that their superposed rinted forms are all in perfect registration. The first thing for the operator to do would be to operate the typewriter in order to fill in the printed forms with the desired data. After this has been done the knife 35 is raised and the forward edges of the webs are grasped, a notch 44, see Fig. 5, having been provided'to enable the operator to take hold of thewebs easily. The assembled webs are then drawn forwardly until the next set of approximately aligned apertures 34 are reached. .These apertures are then placed over the hooks and the webs are released.

However, if

The first action produced when the webs are drawn forwardly is to cause" rollers 18 to be moved forwardly in their mounting slots 22, against the tension of springs 23, until they have passed beyondslats 17, or, at least} until the snubbing or gripping action of the rollers initheir respective 310a upon the webs,:

has been relieved to permit the webs to, be fed from the roll 12. At this point it may be well to digress sulficiently to refer to the manner in which the unwinding from the roll is brought about. In accordance with the provisions of the invention involved in the use of roll stationeryof this type, the forward Web 39 is "the only web upon Which tension is exerted to unwind or propel the roll, the remaining webs being permitted to seek their own positions in increasingly draped condition, as shown in Fig. 1,'so that the action, whichwill now be described, maybe carried out without hindrance. When the web apertures have been placed over the hooks 32 and 33', the webs are released. The rollershave been drawn forwardly, as has been described, and'will now exert a backward pull upon the released webs and bring about a snubbing' or gripping of thewebs between the rollers and. cooperating slats.

The result ofthis is tocause the platen supp ortedportions of the web to be drawn backwardly sothat the frontwalls of the aper- The device is now in "condition for the relies in the clampingand taut holding of the superposed rolled webs is that all humps and other unevenness, such as would occur in folded forms of stationeryis overcome, thus resulting in uniformity of copy work, perfeet printing, and cor ect alignment of printed forms. Another advantage attained by the improved device just described,'lies in the elimination of friction by reason of the two point gripping of the webs upon the spots 2701 the slats. Friction on the hand pulling operation is thus overcome in this manner. Further advantage may be mentioned in the provision of the aligning fea-' ture in conjunction with the clamping ofthe webs by the knife. parallelism of the webs is secured and that for this reason the cutting edge of the knife will always be at right angles to the sides This assures that exact of the webs, thus causing right angle cutting, of the webs over the cutter blade at each cutting or tearing operation.

Having thus described the invention what is claimed is:

1. A web aligning and tensioning device comprising in combination with a platen adapted to receive and support a series of webs from a source of supply, a series of rollers over each of which one of the webs is adapted to be drawn before its passage to the platen, a series of slats corresponding in number to the number of rollers, with each of the slats designed for cooperation with but one of the rollers, means for mounting said rollers for movement toward and away from the slats, movement away from the slats being caused by the webs in their passage over the platen from the source of supply, and separate means adapted to be brought into action functioning the movement of said rollers toward the slats upon cessation af forward movement of the webs.

2. A web aligning and tensioning device comprising in combination with a platen adapted to receive and support a series'of Webs from a source of supply, a series of rollers over each of which one of the webs is adapted to be drawn before its passage to the platen, a series of slats corresponding in number to the number of rollers, with each of the slats designed for cooperation with but one of the rollers, means for mounting said rollers for movement toward and away from the slats, movement away from the lats being caused by the webs in their passage over the platen from the source of supply, and separate means adapted to be brought into action functioning the movement of said rollers toward the slats upon cessation of forward movement of the webs, and means adapted to arrest reverse movement of the webs in response to the last mentioned movement of the rollers, whereby the webs are held taut upon the platen.

3. A web aligning and tensioning device comprising in combination with a platen adapted to receive and support a series of webs from a source of supply, a series of rollers over each of which one of the webs is adapted to be drawn before its passage to the platen, a series of slats corresponding in number to the number of rollers and rela tively stationary to the rollers, with each of the slats designed for cooperation with but one of the rollers, means for mounting said rollers for movement toward and away from the slats, movement away from the slats being caused by the webs in their passage over the platen from the source of supply, and separate means adapted to be brought into action functioning the movement of said rollers toward the slats upon cessation of forward movement of the webs.

4. A web aligning and tensioning device comprising in combination with a series of webs, a platen adapted to receive and support the webs as they are fed from their source ofsupply. a series of rollers over each of which one of the webs is adapted to be drawn before its passage to the platen, a series of slats corresponding in number to the number of rollers, with each of the slats designed for cooperation with but one of the rollers, means for mounting said rollers for movement toward and away from the slats, movement away from the slats being caused by the webs in their passage over the platen from the source of supply, and separate means adapted to be brought into action functioning the movement of said rollers to ward the slatsupon cessation of forward movement of the webs, said webs during said roller movement being engaged thereby with the slats to maintain a check upon their feed from the source of supply, but upon passage of the rollers from the-slats to restore freedom of feed from the source of supply.

A web aligning and tensioning device con'iprising in combination with a series of webs, a platen adapted to receive and support the webs as they are fed from their source of supply, a series of rollers over each of which one of the webs is adapted to be drawn before its passage to the platen, a series of slats corresponding in number to the number of rollers, with each of the slats designed for cooperation with but one of the rollers, means for mounting said rollers for movement toward and away from the slats, movement away from the slats being caused by the webs in their passage over the platen from the source of supply, and separate means adapted to be brought into action functioning the movement of said roll ers toward the slats upon cessation of forward movement of the webs, said webs during said roller movement being engaged thereby with the slats to maintain a check upon their feed from the source of supply, but upon passage of the rollers from the slats to restore freedom of feed from the source of supply, and means adapted to arrest movement of the platen supported portions of the webs upon said separate means being brought into action.

6. A web aligning and tensioning device comprising in combination, a series of webs, a platen aeapted to support limited portions of the webs in their passage from their source of supply, aligning means at the delivery end of the platen, and tensioning mechanism at the supply end of the platen, said tensioning mechanism consisting of a frame, a series of relatively immovable slats spaced apart to permit the passage of one of said webs through each of the spaces between the slats, a roller located adjacent to each of said slats and adapted to receive the web passing through the slot located in ing slots therein to mount each roller for independent movement relatively to its cooperating slat, said mounting slots of each of said rollers permitting movement of each roller away from the platen and into superposed position with relation to its cooperating slat or toward the platen and away from the cooperating slat to open the space in front of said cooperating slat to accessibility between the cooperating roller and slat, means adapted manually to effect movement of the rollers away from the slats and additional means adapted automatically to effect move ment of the rollers into superposed relation to the slats, said additional means being actuated upon movement of the webs in response to functioning of the aligning means.

7. A combined web aligning and tensioning device comprising. a platen a series of perforated Webs adapted to be drawn.

across the platen and to be supported thereby, a web tensioning device at the side of the platen from which the webs are delivered, and a web aligning device at the side of the platen toward which the webs are drawn, said aligning device consisting of a stationary aligning pin adapted to enter the perforations when the webs are brought to register their perforations therewith, a movable web clamping and tearing knife having a perforation permitting it to be placed upon the pin, and means adapted to clamp the knife upon the pin after the web perforations have been registered with the pin, and the webs have been aligned thereon in response to operation of'the tensioning device.

In testimony whereof I have hereunto affix my signature.

BLANTON M. BOYD.

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