US2178722A - Tape stripping, measuring, and severing device - Google Patents

Description

B. DE MATTIA Nov. 7, 1 939.

TAPE STRIPPING,' MEASURING, AND SEVERING DEVICE Filed Dec. 28, 1937 4 SheetsSheet 1 B. DE MATTIA Nov.- 7,- 1939.

TAPE STRIPPING, MEASURING, AND SEVERING DEVICE 4 Sheets-Sheet 5 Filed Dec. 28, 1937 INN" BY a FM ATTORNEYS INVENTOR Nov."7 1939. DE MATTIA 2.178.722

TAPE STRIPPING, MEASURING, AND SEVERING DEVICE Filed Dec. '28, 19s; 4 Sheets-Sheet 4 BY I p ATTORNEYS the leading Patented Nov. 7, 1939 PATENT oFFica- Tara s'rairrmo, MEASURING, sun smama navrca more m cums, N. J.

Application December 28, 1937, Serial No. 132,041.

23 Claims. .(cl. 164-845) This invention relates to a device for stripping material from a roll and for.measuring and severing it into predetermined lengths. Like the device disclosed in my co-pending application, Serial No. 131,310, filed, March 17, 1937, it has particular utility in the manufacture of electrical apparatus where much material is sold to the industry in rolls, as for instance, adhesive tape, which in its ultimate use is required in short lengths, i. e., fractional parts of a foot. It eliminates in its entirety, the tedious effort and waste involved in cutting such lengths with ordinary scissors,,a practice which heretofore has been followed almost universaily.

The improved device contemplates mechanical means for stripping the material (hereinafter referred to-as tape) from the roll in predetermined lengths, and comprises essentially a slidable measuring-head arranged for reciprocating movement in a guide. frame and beneath which the tape is threaded from a supply roll mounted upon a support that allows the tape to unwind as a pulling force is exerted on the end thereof. At or front end of the slidable head, there is provided an upwardly extending vertical portion which is grasped by the operator and through which the head is manually actuated.

The tape, upon leaving the supply roll, passes under a roller mounted in the machine frame, thence beneath the slidable head and around a roller mounted at the front end thereof near the bottom, and thence up past the vertical portion of the slidable head'to a cutter arranged on a fixed standardsecured to the frame of the device. In order -to measure and sever a length of tape, it is only necessary for the operator to grasp the. upstanding vertical portion of the slidable head and tape simultaneously and pull the slidable head forward until it is arrested by a stop,

which measures the length of tape to be severed. The operator then grasps theend of the tape and draws it up past the cutter, this operation serving automatically to return the slidable head to its original position and determine the length of tape drawn past the cutter, which length will be the same as that previously measured on the initial stroke of the slidable head. Thereupon, the tape is severed by tearing it against the edge of the cutting tool. When the material handled by the machine is devoid of rigidity, as in the case with adhesive tape, the cutter head, just beneath the blade, is provided with a plug of material, to which the tape readily adheres and which serves automatically to tack the free end of the tape after a length has been severed, in an upright position, such as will facilitate its being by the operator simultaneously with thevertical portion of the slidable head. The slidable head is also provided with spring the tape into contact with the face of the ver- 6 tical portion to prevent its sag ing down and the machine from becoming unthreaded. The spring means is particularly useful where the tape is non-adhesive and has suiiicient rigidity-to obviate the necessity of using the plug" for tainlng the tape in an upright .position.

As the tape is being pulled past the cutting tool during the return stroke of the slidable head, it must be anchored at its opposite end so as not to,

alter or disturb the length of tape previously 15 measured. Where the tape is possessed of adhesive qualities, the adhesion of the portion ieav-' ing the roll to the underlying convolution thereof will, as a rule, be sufiicient to serve as the anchoring instrumentality roll. However, where the g9 tape is not possessed of such adhesive qualities,

or where the adhesiveness is not sufllcient .to prevent unwinding'of the tape during this phase of operation, the supply roll is held against by a friction brake which can be suitably ad- ,5 justed, depending upon the braking force required to prevent the roll from unwinding.

In another embodiment of. the invention, there are provided means for securing two different lengths of tape without altering the setting of so the machine. In accordance therewith, the measuring head is provided with a pawl arranged to cooperate with one or another of a pair of stops mounted on the frame and which serve to arrest the head at diiferentpositions in its forward a movement. The pawl mechanism is so arranged that it can be allowed to remain in operative position when the operator moves the measuring head forwardly, in which case one length of tape will be measured, or by a slight movement of the 9 hand, the operator can render the pawl inoperative as the head is moved forwardly, in which case a difierent length of tape will be measured I 011'.

main- 10 In still another embodiment of the invention, 45

' cause them to adhere. 15 in contact only over a :thus causing the strip to be separated rrom the rear of the machine, the side frame members are tape itself. Thereafter, both strip and tape are relatively high and present at their upp r ends, brought together again and in contact with the each a U-shaped journal A forthe support of a vertical portion oi the sliding head, enabling them to be grasped simultaneously and held against this portion of the sliding head when the operator device and severed, the turned to its normal position. as in the case of the other embodiments previously referred to. Bringing the strips together after separation will not since at this timethey are relatively short portion of the measur Rubber tape, of

accordingly, in this embodiment of the invention,

go means are provided to compensate for the stretch as mechanism taken on line in the rubber when thestrips are pulled past the cutting tool, so that ultimately the severed strips of rubber tape and protective materialwill be of substantially equivalent length. Furthermore, the

for this purpose is adjustable. in order to compensate for tapes that have different stretching properties.

Referring to the drawings:

Fig. 1 is a side elevation of a tape stripping, measuring and severing device equipped with the present improvements;

- Fig. 2 is a top plan view of the device illustrated in Fig. 1;

Fig. 3 is a transverse vertical sectional view 8-! of Fi 1;

Fig. 4 is a longitudinal vertical sectional view of a portion of the device shown in Fig. 1, and illustrating in dottedlines, the measuring head in its normal position, and in solid lines, the nfeasuring head in its-forward or advance position at the end of the measuring stroke;

Fig. 5 is a longitudinal-vertical sectional view through a portion of the machine, and showing the movable head in its' rearmo'st or normal position, where it has been returned by the pulling of the tape past the cutting element;.

Fig. 6 is a side elevation of a portion of another embodiment of the device equipped with mechanism for arbitrarily measuring one length of tape or another as desired;

Fig. 'l is a top plan view of the device shown in Fig. 6, but with the cutting element standard bre lsen away to illustrate the operation of the p i Fig. 8 is a vertical sectional view taken on line 8-8 of Fi 6;

Fig. 9 is a side elevation of a portion of another embodiment of the device equipped for handling tape provided with a protective strip;

Fig. 10 is a longitudinal vertical sectional view through the measuring head shown in Fig. 9;

' Fig. 11 is atransverse vertical sectional view taken on line il--il of Fig. 9;

Fig. 12 is a operation of the mechanism which compensates for the stretch in elastic tape having a protective strip between the convolutions of a roll thereof 1 and Fig. 13 is a diagrammatic view, similar to Fig. 12, but illustrating the parts in a different position of adjustment.

As shown in Figs. 1 and 2, the improved machine includes a main frame A having a base A and spaced vertical side members A. projecting upwardly from the lateral edsesthereof. At thecourse, has a certain amount of stretch, whereas the protective strip will not. and

. over the guide diagrammatic view, illustrating the mandrel B, on which is located a supply roll 0 of The journals are open at the top to facilitate removing and replacing the roll of tape. rolls of tape of diflerent widths and, to this end, there is mounted on the mandrel, a backing plate B for the roll of tape. and which is threaded on the mandrel so as to be adjustable to any desired position along the mandrel and held in its adjusted position by means of aset screw 13 threaded through a centrally located boss .8 with which the backing plate is formed and into engagement with a flat or mutilated portion 3 of the threaded mandrel. The roll of tape is held in position against the backing pl te by a collar 8' likewise threadedon the mandrel at the opposite face of the roll. This collar is substantialy smaller in diameter than the backing plate and indeed, is no larger than the core member of the roll of tape, so that there will be no interference presented by the .collar to the stripping of the tape from the roll. It might be stated here that the usual cardboard core on which he tape is wound can be supplemented by a wood core (not shown) fitting tightly into the cardboard core and having a hole at its center of a size properly to flt the mandrel.

Forward of the roll mounting, the device is equipped with a pair of spaced parallel guide rails A fastened near their front and rear ends to upstanding portions of the side frames A. These rails are for the support and guidance of a slidable measuring head D. the function and operation of which will hereinafter be described. The head is formed with a base portion D presenting four lugs D, two at the front "and two at the rear, and which are equipped with grooves D into which the guide rails A project (see Fig. 3). The head is further formed at the front end of the base with an upstanding vertical portion U one from each of the guide rails, and against which the head banks at its rear end. The foremost position of the head is determined by a stop E, against which one of the flanges D of the head banks at its front end. This stop, as shown best in Fig. 3, is an adjustable clamp which can be located at any desired position along the rail, thus providing for the head, anydesired length of stroke within the limits of the machine. The clamp includes a top member E recessed to fit rail, a bottom member E presenting a portion which engages the bottom of .the rail and a bolt E for drawing the members together to exert the clamping pressure, the bottom member being slightly rec as at E, so that a proper purchase on the rail is obtained.

The tape C as it leaves the roll 0 (see Figs. 1 and 2), passes, first beneath a guide roller A rotatably mounted on a cross pin A" flxed at its ends in theside frame members A, thence, under the head D, and around another roller D, rotatably mounted on a cross pin D" flxed at its ends in the spaced forwardly projecting flanges D. After passing around the roller D, the tape is A projecting laterally and inwardly,

mandrel when I threaded upwardly vertical portion D D' rotatably' mounted upon a cross pin 13' likewise nxed at its ends in, the flange members D and 5' thence to a cutter or blade F having a fixed position overlying the measuring head. The tape being urged into, contact 'with the vertical portion D of the by-a .U-shaped wire spring I)" formed with a straight horizontal portion which e the-'tape, and with two side portions terminating '-in spiral springs D encircling a pair of boltsD" arranged one in each" of the flange members D (seeFig. 8). Y The cutter or blade F is mounted on a cross member F secured to a standard I" in the form of an inverted Y-shaped element, the lower part of which bridges the space between the guide rails 'to which it is secured. The blade (see Figs. 3 and 4) is held in place on the crew member F by a guard plate 1 and a pair of screws F passing through the guard plate and blade and threaded into said cross member. The cross member is secured to the standard 1'" at the top by means of a bolt l passing through a hole drilled in the the cross member and through a registering hole drilled in the standard, and having a nut F threaded thereon andreacting against the rear face of the standard. According to this arrangement, the knife F can be located in any angular position desired with respect to. the travel of the tape, as will be readily understood.

The operation of the device, it is thought, will 'ahowzbesreadilyapparent from the following brief description, reference being bad particularly to Figs. 4 and 5. Assuming that a length of tape has been severed so that there is a portion thereof extending upwardly from the vertical portion of the head I) to the knife F; the operator merely grasps the tape and the head simultaneously by holding the tape in contact with the front face of the vertical portion of the head near the upper end thereof and placing one or more fingers on the rear face of said vertical portion, and then drawing the head forwardly until it is arrested by the banking of the head against the stop E. In other words, the head is moved from the position shown in dotted lines in Fig. 4 to the position shown in solid lines therein. During this operation, a length of tape will be stripped from the roll, the amount thereof depending upon the distance through which the head has travelled before being arrested by the stop E. Thereupon, the operator grasps the tape at the end thereof extending above the vertical portion of the head (see Fig. 4) and pulls it first in a slightly forward direction to break the adhesion between the tape and the'head and thence in an upward direction. As the tape is thus .pulled and, since it is, in a sense, anchored at the point where it joins the main roll, by virtue of its adhesion to the underlying convolution thereof, the movablemeasuring head will be returned to its normal or original position, which, as previously stated, is deterg mined by the banking of the head against the stop pins A (see Fig. 5). As the head, in its return movement, will travel through the same distance as it previously did during its forward movement, the length of tape drawn up past the go cutting blade F will be the same as that measured by such forward movement of the head. The measured length of tape is then severed by tearing it against the cutting blade F.

Since ordinary adhesive tape has very-little 75 body and is substantially devoid of stiffness,

a vance.

base of a cylindrical recess F centrally-located in -vertical portion D means are provided for holding the leading end of the tape 0. at the blade position, so that it will not drop down before the operator has had an opportunity to grasp it for the next measuring and stripping operation. Such means includes preferably a rubber plug G, which can readily be made by rolling up a short length of tape (rubber or otherwise) and inserting it in the recess 1'' located at the center of the cross member F The plug G is held in place by a set screw G threaded longitudinally through the cross member IF and embedded into the plug itself (see Fig. 3).

As the tape C is pulled upwardly past the cutter F during the return movement of the measuring head, the spring D will yield so that thetape can-be drawn past the vertical portion D of the head without contact therewith, but the strength of the spring is not such as to require a pulling tension on the tape that ordinarily will prevent the roll of tape C itself from acting as an anchor. The purpose of the spring is mainly to prevent the machine from becoming unthreaded. The vertical portion D of the head near its upper end and in its front face is provided with a series of ridges D presenting relatively narrow tape engaging edges, in order that the tape will not adhere'too tightly to the head when it is pressed thereagainst by the operator during the measuring stroke.

In order that the machine can be adapted for measuring and severing tape that is not adhesive, or where the adhesiveness is so slight as to pre-- clude the possibility of the roll acting as its own tension ng device, a brake'mechanism has been provided which will facilitate placing any desired degree of tension on the tape. As shown in Figs. 1, 2 and 3, this braking mechanism includes an element H, preferably made of wood, and which is drilled near its upper end to receive an extenson B of the roll supporting mandrel B, projecting beyond the side frame of the machine. The diameter of this hole is slightly smaller than the diameter of the mandrel extension and, as the element His split at the top above. the hole and for about half its length below the hole and provided with a bolt and nut H arranged to urge the split portions together, the frictional force exerted by the device on the mandrel can be varied to any extent desired, merelyby tightening or loosening up on the nut, the latter being knurled to facilitate such adjustment. The braking device itself is prevented from turning with the mandrel by a pin H projecting laterally from the frame of the machine near the bottom, and which extends into a slot H formed in the lower end of the element H for the purpose.

Where the'tape is sufllciently stiff, so that the portion thereof between the upper end of the of the head and the knife F can support itself, the rubber plug G can be dispensed with, if desired. It will further be noted that the clearance between the upper end of the head and the knife should be such as to permit the tape to extend sufficiently above the head to enable the operator readily to grasp the tape to efiect the operation of pulling the same and guid-\ ing it past the cutting blade.

In Figs. 6, '7 and 8, the device has been illustrated with an attachment that will permit the operator arbitrarily to measure and sever one or another of two difi'erent lengths of tape without adjustment of the device.

In addition to a banking stop or clamp E, which is, in all respects, the same as that inxthe embodiment previously described, there is pro- 4- a,17s,vaa'

vided a second stop J, which, as shown in Fig.8, comprises a clamp, the same as the'clamp E, except that here the bolt is arranged beyond the outer lateral edge of the guide member A, and

5 the upper member J thereof, instead of extending completelyacross the guide member, terminates substantially at the center line thereof, and is provided at this end with a depending lip J en ag ng in a groove K in the upper face of the guide member A and extending longitudinally therealong.

The vertical portion 1) of the head in this instance is drilled transversely to receive a shaft L which, at both ends, extends beyond the side 5 faces of the head. At one end of the shaft L, i. e., that which projects over the guide rail A equipped with the stops E and J, there is fixed a pawl L extending downwardly to cooperate with the smaller clamping element J, that is, the

0 first one nearer the head in the normal position thereof. At the other end of the shaft, there is pinned a bar I extending upwardly to the top of the measuring head. This bar is tilted slightly in a forward direction, so that its weight, together with the weight of the pawl L tends normally to rotate the unit forwardly, so that the pawl will engage the upper face of the guide rail A. If the operator desires a short length of tape, he will, during the measuring stroke, grasp the 3g tape and the vertical portion D of the measuring head in a manner so as not to disturb the bar IF, thereby permitting the pawl L to maintain its normal position. The position of the operator's hand under these circumstances, is shown in- I dot and dash lines in Fig. '7. Consequently, the

pawl L will engage the first'stop J, thus determining the length of tape to be severed. However, if the operator desires the longer length of tape, he merely moves his hand to the dotted 40 line position shown in Fig. 7 during the measuring stroke, in which case, the bar I? is moved rearwardiy to raise the pawl to the dot and dash line position shown in Fig. 6, wherein it clears the first stop J. The measuring stroke is then continued until the measuring head is arrested by banking against the second stop E in the .same manner as in the embodiment previously described. Irrespective of the length of tape measured however, the measuring head D is returned to its normal position and the tape severed in the usual way. Both clamps or stops E and J, of course, are adjustable longitudinally along the guide rail A so that, by adJusting them to different locations, the machine can b set to measure any two lengths of tape as desired, within the limits of the machine. The first clamp J terminates at its inner end adjacent the center line of the guide rail in order to'ailow clearance for the guide lugs D on the head during the measuring of the longer length of, tape for which the machine is set. Furthermore the vertical portion of the measuring head D is preferably provided with a stop L to limit .the rearward movement of the pawl. controllingbar 1?,

so that the pawl will always tend to remain in its normal position. with the foregoing exceptions, plus the fact that the roller D' is somewhat larger in diameter than the corresponding roller in the embodiment previously-described, and that I the tape retaining spring D" is mounted on the shaft supporting ,the roller D, the device is otherwise the same.

In Figs. 9, 10, '11 and 12, there is illustrated a a measuring head equipped with an attachment for stripping, measuring and severing tape normally marketed with a layer of protective material between the convoiutions thereof. Rubber tape is an example of such a produc the protective material in such instances being pape cloth, or some other suitable inextensible material. In 5 threading the device, the tape M and its protective strip N are led from the supply roll which r is supported as in the embodiments previously described, beneath the measuring head D to the anti-friction roller 1). At this point, the pro- 10 tective strip N is separated from the tape M, the tape passing upwardly between the front face of the measuring head D and an anti-friction roller 0, mounted on a cross rod 0 fixed at its ends in the forwardly extending flanges D The pro- 15 tective strip N, on the other hand, is led forwardly around the lower one ofa pair of rollers P, P rotatably mounted on transverse pins fixed in the side members and at the forward end of a bracket 1? pivotally mounted at its rear end on a transgo verse pivot rod P extending through the vertical portion of the measuring head. After passing around the roller P, the protective strip is led back toward the vertical portion of the measuring head, where it passes beneath the cross bar 5 Q of a U-shaped member, the side arms Q of which are pivotally mounted at the ends of a transverse horizontal pin Q extending through the vertical portion of the measuring head at the top. From this point, the tape and its protec- 3o tive strip are led up past the cutting tool, as in the previously described embodiments.

The tape is measured as in the embodiments previously described, that is, the operator presses the tape and its protective strip against the ver- 35 ticai portion of the measuring head and grasps the rear face of the latter with his fingers, pulling the head forwardly until it is arrested by the banking stop E. The operator then grasps the ends of the protective strip and tape simultaneously and pulls them up past the cutting tool F. During this operation, the measuring head Dis returned to its normal position; the tape will pass around the rollers D and 0, while the protective strip will pass between the rollers P and P at the forward end of the bracket P" and at the rear of the cross bar Q of the U-shaped member. The

' tension maintained on the protective strip during this operation will cause the cross bar Q to assume the position shown in .Fig. 12, thus allowing the strip to follow a straight line path between the roller P and the cutter.

- when the measuring head D has been returned to its normal position, wherein it banks against the stops A, the measured lengths of the tape and strip will have been drawn to the cutting position and are ready to be severed. During the severing operation of the tape and strip, which I is accomplished by tearing the tape and strip against the cutter F, the tape and strip are positiveb held against a rubber plug G, similar to that in thesmachine first described, by a finger Q with which the cross bar Q is provided and which, at its outer edge, is pressed against the protective strip by the operator. This movement 6 of the finger Q into operative engagement with the protective strip to anchor the strip and tape during the severing operation is readily accornpiished by the operator through the medium of a handle Q provided at the end of a bar Q, which 70 is a continuation of and bent at right angles to, the left arm Q of the U-shaped member itself. After the tape and the protective strip have been severed, the U -shaped member is turned back to its original position, -wherein the pros bar Q 7 pulled past the cutting tool thereof holds the protective strip in contact the tape and the tape in turn in contact with the with vious that the rubber tape would be severed in a,

stretched condition. Consequently, the corresponding unstretched length of tape would be a shorter than the severed length of protective the roller P and the knife F, since the prior to the severing action. It will strip. In order that the length of tape and protective strip severed be the same, means are provided to compensate for the elasticity in the,

rubber tape. .It will be apparent that after the lengths of tape and protective strip are severed, if the end of the tape is anchored or tacked at the cutting blade by contact with the rubber plug G and the protective strip retracted so that its end will be somewhat lower than the end of the tape, the length of rubber tape extending beyond the end of the protective strip will compensate for the stretch in the rubber during the pulling operation. The manner in which the protective strip is retracted after a severing operation can best be illustrated by reference to the diagrammatic illustration of Fig. 12. In this figure, the tape M is shown in solid lines and the protective strip N in dotted lines and in their relative positions after the measuring head has been' returned to its normal position and just v be noted that the protective strip follows a line ab between cross bar Q of the U-shaped member is in a position remote from the face of the head D and at'the same time the tape M will follow a straight line cb from the roller 0 to the knife F. After the tape and strip are severed, the U-shaped member, as previously stated, is'turned back to its normal position, so that the protective strip (see Fig. 13) is again brought into contact with the tape and in contact also with the vertical portion of the measuring head D. The rubber tape will now assume the path cdb. There is very little difference in length between this path and the path cb which the tape originally fol lowed, and consequently the tape, at its end, will not be drawn to any appreciable extent away from the knife, at least no more than what can be accommodated by the resiliency of the rubber plug, so that the tape will stillremain in contact with the latter. The protective strip, on the other hand, will be caused to follow the path adb which, it will be noted, is considerably longer than the path ab. Since the protective strip is inextensible, the upper end thereof will be drawn down until it is at the position indicated by the letter e. Thus, it will be seen that the rubber tape now extends beyond the end of the protective strip by an amount equivalent to the distance eb, this amount compensating for the stretch in the rubber tape during the pullingout operation, as previously described. Since rubber tape is usually in an uncured state, it may be that the severed length of tape will be somewhat longer than the severed length of protective strip, due to the fact that the rubber may take a permanent set. However, insofar as volume is concerned, the amount of rubber in the severed length will be the same as the amount an element movable ion 5 in a piece of unstretched tape equivalent in length to' the severed length ofprotective strip.

Since the total amount of stretch in different instances will vary, depending upon the length of the measured strip of tape and also because of variations in the stretching qualities of diiterent tapes, provision is to which the end oi the 'protectivestrip is retracted downwardly to compensate for such variations. Thus, referring to Fig. 10, it will be seen that the bracket P upon which the rollers- P, P are mounted is pivotally supported at its rear end, so that it can be swung through an made for adjusting the extent i are, the length of which is determined by a pair of arcuate slots P provided in the opposed arms or the bracket P in cooperation with a pair of bolts P extending one through each of the flanges D? and through the corresponding arcuate slot, the arrangement being such that by loosening the bolts, the bracket can be swung to different positions which can be maintained by tightening-up again on the bolts. By this adjustment, the rollers P, 2|? can be caused to assume different positions with respect to the cutting blade and, the nearer the rollers to theblade, the greater will be the distance through which the end of the protective stripis retracted. That this is so is obvious from the fact that the bracket P is pivoted at a point relatively close to the position d in Fig, 13, and consequently, irrespective of theposition of the rollers P, P, the distance ad will always be of approximately] the same length. Since the distance bd is constant, any decrease in the length ab will result in a corresponding decrease in the distance de. In other words, as the bracket P is pivoted upwardly to shorten the distance ab, the length be through which the protective strip is retracted will be increased; whereas, when the bracket is pivoted downwardly, resulting in an increase in the distance ab, the distance be through which the protective strip is retracted will be decreased. It will also be noted that the instant head D is equipped with a pair of spaced pins R, depending from the base of as aguide for the tape as it passes through the device. This expedien of course, could be used. if desired, for any of the measuring heads herein described. I

In the accompanying drawings, the invention has been shown merely by way of example and in preferred form, and obviously many variations and modifications may be made therein which will still be comprised within its spirit. It is to be understood, therefore, that the invention is not limited to any specific form or embodiment, except insofar as such limitations are specified in the appended claims.

Having thus described my invention, what I claim is:

1. A device for stripping material from a roll and severing it into predetermined lengths, and which includes, in combination, a support 'for the roll of material, a measuring device comprising gitudinally through pre- 6 determined strokes and in contact with which the material is held during such movement relatively near the leading end of the latter and'at the same distance from such the length of material being stripped and sev ered, to strip the material from the roll and measure the length to be severed, and a cutter for severing the measured lengt 2. A combination according to claim 1, wherethe head, inorder to act end irrespective :01 o

stripped and severed,

and severing it into predetermined lengths, and which includes, in combination, a suport for the roll of material, a measuring device including an element'movable in one direction and in contact with which the material is held during such movement relatively near the leading end of the latter and atthe same distance from such and irresp tive of the length 0! material being to strip the material from the rolland measure the length to be severed, and movable in return direction to its original position preparatory to the stripping er. the next length oi material, and-a cutter for severing the lengths of material thus measured. Y

5. A device for stripping material from a roll and severing it into predetermined lengths, and which includes, in combination, a support for the roll or material, a measuring device including an element movable in one direction and in contact with which the movement, whereby the material is stripped from the roll and the length to be severed determined, and movable in the return .direction to its original position preparatory to the stripping oi the next length of material, and a cutter for severing the lengths oi,material thus measured, said return movement or the element being eflected by pulling 'the measured length or material past the cutter prior to severance.

"'6'. A device for stripping material from a roll and severing it into predetermined lengths, and

which includes,. in combination, a support tor the roll of material, a measuring device including an element movable longitudinally in one direction and in contact with which the material is held during such movement relatively near the leading and of the latter and at the same distance from such end irrespective of the length of material being stripped and severed, to strip the material from the roll and measure the length to be severed, and movable longitudinally in the return direction to tory to the stripp of rial, and a cutter for severing the lengths of material thus measured.

'1. A" device for stripping material from a roll and severing it into predetermined lengths, and

which includes, the roll or material, a measuring in combination, a support !or device including an element movable longitudinally in one direcrial is stripped severance.

tion and incontact with which the material is held during such movement, whereby the mateifrom the roll and the length to be severed determined, and movable longitudinally in the return direction to its original position preparatory to the stripping of the next length of material, and a cutter i'or severing the lengths of material thus measured, said return movement oi! the element being effected by pulling the measured length oi material past the cutter prior to 8. A device for stripping material from a roll and severing it into predetermined lengths, and which includes, in combination, a support for the roll or material, a measuring device including a slidable head beneath which the material is led from the roll and having a portion against which the material rests, whereby-the material and portion can be grasped simultaneously by the opmaterial is held .during such its original position preparathe next length of mateerator and pulled the roll, a cutter for severing the length 0! ma- ,"and means on the head with the strip of material prior to severance to return the slidable head to its original position 1 9. A combination according to claim 8, wherein the means on the slidable head which coopcrates with the strip or material in returning the head to its original friction devices.

10. A combination according to claim 8,'wherein there is provided a spring portion 0! the material rests and which urges the material into contact therewith after a measured length has been severed.

11. A device for stripping materialirom a roll and severing it into predetermined lengths, and which includes, in combination, a support for the roll of material, a pair or guide rails, a measuring head mounted on said guide rails and movable therealong, and material is held during such movement relatively near the leading end of the latter and at the same distance from length of associated ment, of the measuring head and thus determinmaterial to be stripped, banking stops and severing it into predetermined lengths, and which includes, in combination, a support for the roll of material, a stripping and measuring device comprising a movable element in contact with which the material is held during the stripping operation, and a plurality of banking devices for determining element, means operable at the will of the operator for rendering one or another of said banking devices operative, and a cutter ior severing the measured length- 1 13. A combination according to claim 12, wherein the means operable at the will 0! the operator includes a pa' 1 carried by the movable element and normally arranged. to cooperate with the, banking device, but adapted to be rendered inoperative, whereby another banking device is rendered active ior determ n l the degree of movement of said element.

14. A device for stripping material from a roll and severing it into predetermined lengths, and which includes, in combination, a support for the roll of material, a measuring device comprising an element movable longitudinally through predetermined strokes and in contact with which the material'is held during such movement, whereby .the material is stripped from the roll and the length to be severed determined, and a cutter past which the measured length is manually pulled and against which the material is torn to sever the measured length, said cutter being arranged in spaced relation with said element,

and adapted as the material is pulled past the cutter.

slidable head against which thein contact with which the with the rails for limiting the movethe degree of movement of said position, includes antisuch end'irrespective oi the means for simultaneously stripping lengths of material and protective strip from the roll, a cutter past which the material and strip can be drawn for simultaneous severance, and means for causing the material and protective strip to follow difl'erent paths through the device so as to separate them one from another.

16. A device for stripping material from a roll and severing it into predetermined lengths and which material is provided with a protective strip between the convolutions thereof, said device including a support for the roll of material, a measuring device including an element movable through predetermined lengths for stripping an equivalent length of material with its protective strip from the roll, a cutter past which the material and strip can be drawn. for simultaneous with a protective strip between the convolutions thereof, said device including a support for the roll of material, a measuring device for stripping a length of material with its protective strip from the roll, a cutter past which the material and strip is drawn for simultaneous severance, and means for compensating for the stretch in the material as the material and strip are drawn past the cutter, whereby the amount of material severed is substantially equal to the amount of material stripped from the roll by the measuring device.

18. A device for stripping a stretchable material from a roll and severing it into predetermined lengths and which material is provided with a protective strip between the convolutions severance, and means for retracting the protective strip a predetermined distance i'rom the end of the material after a length of the material and its protective for stripping a length of material with an equiva-' lent length of the protective strip from the roll, a cutter past which the material and strip is drawn for simultaneous severance, and means for compensating for the stretch of the material as 5 the material and strip are drawn past the cutter,

whereby the amount oi material severed is subcompensate for the stretch in the material when the 'next length of material with its protective strip is drawn past the cutter.

21. A device for stripping, a stretchable material from a roll and severing it into predeter mined lengths and which material is provided 30 permit severing the material with respect to its direction of feed.

' 23. A device for stripping and severing material from a roll and which includes, in combination. a device movableto strip a length of tape a stationary cutter for severing material, and means carried .by said movable device and adapted when manually moved into engagement with the material in the region thereof where the stripped length is to be cut to facilitate the cutting of such stripped length.

BARTHOLD DE MA'II'IA.

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