USRE22733E

USRE22733E - Strip serving machine

Info

Publication number: USRE22733E
Authority: US
Publication date: 1946-03-19

Description

March 19,1946- T. H. KRUEGER STRIP SERVING MACHINE 2 Sheets-Sheet, 1

Criminal Filed Aug. 19', 1942 zz L36 I6" -35 Rm m5 WW f w Wm H. W Y BB. 0

March 19, 1946. 1'. H. KRUEGER s'nur smwme MACHINE Original Filed Aug. 19, 1942 2 Sheets-Shet 2 INVENTOR 7715000165 h. (Ema-"6E2 wav /2% ATTORNEYS Reissued Mar. 19, 1945 s'rlur SERVING MACHINE Theodore H. Krue'ger, Stratford, Conn, assignor to Better Packages Incorporated, a corporation of New York Original No. 2,362,641, dated November 14, 1944, Serial No. 455,311, August 19, 1942. Application for reissue November 13, 1945. Serial No. 828,346

15 Claims.

This invention relates to an improved apparatus for serving measured strips of tape which.

are covered or impregnated onone side thereof with a pressure sensitive adhesive usually tacky or non-drying either permanently or during the period of use. The invention has particular utility in the-various fields of use to which pressure sensitive adhesive tape is applied and especially is useful where the tape is required in short lengths such as fractional parts of a foot. It eliminates the tedious nuisance and waste involved in cutting inaccurate lengths with ordinary scissors and provides a simple and easy operating mechanism for speedily stripping from the roll; measuring,

cutting .and delivering at a point ready for use, the desired length of tape.

The improved apparatus contemplates mechanical means for stripping the material or tape from the roll in predetermined lengths and comprises generally a slidable measuring element adapted to be grasped with the tape adhering thereto at .or near the leading end of thetape.

The slidable element with the tape adhered thereto-may thenbe drawn in its slide to draw tape from the roll and a suitable stop for the element is provided which stop may be adjustably mounted so that it may move a variety of diilerent distances from the starting point and thusa variety of lengths of strip. may be dispensed. severing of the tape is accomplished by tear-ofl means as wilibe described. I 1

It is a particular object of the invention to provide a dispenser for strips of normally tacky tape in which the operator grasps the tape and a measuring element together and moves them through a distance equal to the length'of tape desired,

with a stop which prevents further movement of the measuring-element andthus limits the length of tape dispensed. I

It is a further object of the invention to provide a tape dispenser having severing means mounted so that after a delivered strip has been severed a portion of the tape is left in extended position from the machine ready to be grasped for the next delivery.

ing the tape measuring element in retracted position:

Figure 5 is a transverse substantially vertical section of the machine taken'on the line 8-! of Figure 2 showing the tape measuring device in extended position and illustrating the means for varying the length of tape delivered;

Figure 6 is a section taken on the line 6-6 of Figure 5, and r .4' g

Figure 7 is a fragmentary-transverse vertical sectional view of a modified. form of means to vary the length of tape delivered.

Referring now tolFigures' 1 through 6, a dispensi ng machine is shown having an outside casing iii of roughly triangle shape inside elevation, the hypotenuse of the triangle preferably being curved as shown in Figure 2 and having slots II which accommodate shaft l2 which carries the roll I3-of tape to be delivered. The tapeweb I4 is drawn from the roll and passes, tacky side in, about the guide roll I6 *and meets the guide roll l8 on its non-tacky side. The roll it is positioned to change the direction of the tape to a more vertical position asparticularly illustrated in Figure 2 and the inherent stiffness of the tape insures that the end of the tape will be presented extending upwardly from the machine as there illustrated. It will be observed that as the tacky Further objects and advantages will appear from the following detailed description takenin connection withthe drawingsin which:

Figure l is a top plan view of ail-embodiment o! my invention;

.Figure 2 is a longitudinal vertical section'taken side of the tape passes in contact with the roll Is it will adhere thereto throughout the are of contact, peeling off from the roll as the leading 'end of the tape is drawn upwardly. The roll it thus constitutes an adhesion and supporting roll which will maintain the leading end of the. tape in position between successive operations of the dispenser and will not permit the leading and of the tape to slip back into the machine from a position where it can be grasped for the next dispensing operation. Between operations the leading end of the tape adhering to the roll I! willtend to project upwardly therefrom in the direction in which it was left after the preceding operation. The guide roll ll causes the pull on that part of the tape leaving the adhesion roll it to be at the same angle at all time. The feeding means include the chute 24 which has the feed .or measuring element or slide 22 v mounted for sliding movement therein; The slide 22 may preferably be provided with the two marginal portions 24 and the connecting bridge top 25. Referring to Figure 2, it will be seen that the roll it directs the tape through the space between the marginal portions 24 of the slide 22' so that the web guided by the roll I! extends from the machine in front of the slide with its non-tacky side facing the front of the machine in substantially theplane of movement of the slide. The slide is normally held against the pins 26 at the bottom of chute 20 byspring 26 which is secured to one end to the sidewall of the machine as at, encircles the spring pulley 32 and is secured at its other end to the pin 34 mounted on the slide 22. Since the feeding movement is upward from the machine, it may be desirable in some instances to provide for securing the machine to the surface on which it is placed and to this end'the base extension 23 is provided which may be secured thus in any manner desired as by screw 25'.

The machine is also provided with tear-oil knife 36 which is mounted transversely of the path of the tape in the front of the machine as shown in Figure 2 and is preferably considerably in advance of the point where the chute extends from the machine so that a leading end of the tape will remain after severing for grasping on the next feeding stroke. The knife 36 may have a serrated edge 38 1f desired or may be in the form 01' a blade or the like. It is a particular advantage that the tape only engages the tearoif knife on its non-treated or non-tacky side so that gumming of the tape by the adhesive will not ordinarily be encountered. g

It will be seen that the extent to which the slide 20 moves from its lowermost position against the pins 26 will determine the length of tape fed and in Figure 5 is illustrated a preferred means for adjustingthis length of movement. This means includes the sector 40 pivoted at 42 and having the teeth 44 and the handle 46 which extends-through .the slot 48 in the side wall Ill of the machine. By moving the handle 46 the sector 40 is moved about the pivot 42 to place one or another of the teeth 44 in the way of the pin 34 asthe slide 22 is pulled from the machine and prevent its further upward travel in the chute 2|). Referring to Figure 5, it will be seen that-when the uppermost tooth is placed in the way of the pin 34, a considerable length of movement of the slide will be permitted but as shown in the dotted position of the sector when the lowermost tooth is met by the pin 34 in its upward travel. a considerably shorter movement of the slide is possible. Lengths of movement of the slide in between these two extremes'are provided by the remainder of the teeth, and arrows 50 or other suitable insignia may be embossed or otherwise suitably indicated upon the wall H) of the machine so that the handle 46 may be placed in the desired position to limit the movement of the slide. 1

It sometimes occurs that the tape being dispensed does not have sufficient inherent stifiness so that the guide roller I8 makes it stand up away from the knife 36 for a suflicient distance to enable the thumb of the operator to grasp I example the position illustrated in dotted lines forming the subject matter of my application for it when it is desired to dispense a piece of tape.

To avoid this dimculty Ifiprefer to provide the device with deflector means for deflecting the leading end of the tape upwardly toward'the' plane of movement of the slide after the severing of a previous delivered strip has been accom-' plished. These means include the wire "which is secured to the bell crank 12, The bell crank I2 is pivoted on the same axis as the roller ll and has Weight 14 which causes it normally to assume the full line position of Figure 1 in which position it supports the leading end of the tape as shown. The bell crank is preferably loosely mounted on the axle of the roller I 6, however,

. utilized.

so that when the roller ll revolves, there will not be an undue tendency to rotate the bell crank. Itcan be seen, however, that when the tape is drawn down across the knife edge 38, the crank 12 will move downward under the pressure of the tape and will only move the tape into upwardly extending position after severance.

The operation of the construction is as follows: With a portion of tape extending upwardly from the machine in the manner shown in Figure 2 to a distance beyond the normal position of the bridge portion 25, the tape and the bridge are grasped between the thumb 52 and finger 54. The slide 22 is then drawn upward by the thumb and finger as faras the slide will travel depending upon the position of the sector 40 to for knife 36 and severed whereupon the portion rearward of the severing point will spring up or be pushed up by the deflector 10 into substantially the full line position of Figure 2 ready for the next delivery.

In Figure '7 I have illustrated an optional form of means for varying the length of tape delivered including the sector 6|! pivoted at 62 b a friction type nut 63 which is adapted to hold the sector in the position .to which-it is set. The sector is provided with curved surface 64 and handle 66 and it will be seen that in the uppermost position 'of the handle, the pin 34 will extend its maximum distance upward resulting in the maximum length of tape whereas in the low ermost position of the handle shown in dotted lines in Figure 7, the position of the curved surface 64 will be such that the pin 34 will extend only the minimum distance upward from the base and the curve 64 provides intermediate these where between the maximum and minimum.

lengths. I

v The strip serving machine disclosed in the present application embodies some of the same principles of operation as the strip serving machine patent, Se'rialNo. 454,153, filed August 8, 1942.

In so far as there is broad subject matter of invention common to the two cases, such common subject matter is claimed in 'saidcompanion application.

While I have illustrated and described in detail certain forms 'of my invention, I do not wish to be understood as limiting myself to the use of such forms, as Irealize that changes within the scope of the inventid'nare possible; and I further intend each element or instrumentality recited in any of the following claims to be understcod to refer to all equivalent elements or instrumental ities for accomplishing substantially the same result in substantially the same or equivalent manner, it being my purpose to cover my invention broadly in whatever form its principle may be I claim: 1. A device for delivering strips of tacky mateterlal, a chute containing a slidable delivery element mounted to be partially withdrawn from said chute, said element having an aperture therein, guide means for guiding the leading end of the tape through the aperture and then directing it into the plane of movement of the delivery" element, means permitting grasping of the delivery element and the leading end of the tape simultaneously to draw said element from the chute and simultaneously draw tape from the roll, stopmeans to limit the sliding movement of the delivery element and means to return said element to its original position without releasing the withdrawn strip of tape.

2. A machine for delivering strips of tacky ma terial including a support for a supply of the mahaving means to engagethe tacky side of the tape near its leading end, means to permit the feed element to be reciprocated and tape drawn from the supply simultaneously, a severing knife mounted forwardly of said supply and said element whereby a fed strip may be detached from said element and brought into severing contact with said knife by forward movement from said element.

3. A machine for delivering strips of tacky material including a Support for the supply of material, a reciprocating feed element in the form of a substantially flat plate mounted for movement in the direction of the length of said plate, means to bring the leading end of the tape from said supply into the plane of movement of the reciprocating feed element and means on said feed element permitting grasping of said element and the leading end'of the tape simultaneously to remove tape from' the supply by movement of, said element and said leading end of the tape in said plane.

4. In a machine of the character described.

- means to bring the leading end of the tape from the tape supply into the plane of movement of the feed element including a shaft mounted in juxtaposition to said plane and weighted guide means pivoted on said shaft engaging the tape-near the leading end thereof to move it toward the plane of said element,

5. A machine for delivering strips of tacky materi al having a support for a supplyv of material,

a reciprocating feed element mounted for movement in a direction to withdraw tape from the supply, said feed element having a member to which. thetacky side of the tape is adapted to measuring element being apertured to permit the passage of the leading end of the tape from one side to the other thereof, and guide means for leading the leading end of the tape through the aperture and into a plane parallel with the direction of movement of the measuring element, with an adhesive side of the tape facing the measurin element, said measuring element being formed to terial, a reciprocating feed element, said element it and the tape may be simultaneously moved to draw tape and the element from the machine.

7. A machine as claimed in claim 6 having a device for automatically returning the measuring element to its initial position as soon as it is released by the fingers of the operator, and the tapeis separated therefrom.

8. A machine as-claimed in claim 6 in which a spring is connected to the reciprocating measuring element and is stressed by the drawing out of the measuring element, and acts to return said element to its initial position as soon as said element is released.

'9. A machine as claimed in claim 6 in which said aperture is at. least'as long as the longest reciprocal movement of the element.

10. A machine as claimed in claim 6 in which presettable adjustable means are provided tointercept the outward movement of the reciprocally slidable measuring .element to limit the movement of said element, whereby the length of tape to be fed may be predetermined.

.11. A device for serving strips of tacky. material including a support for a supply of material, a reciprocating measuring element mounted for re ciprocal movement in the same direction in which the tape is to be fed, said reciprocating element having a tape adhesion surface to which the tape may be caused to adhere during the movement of the reciprocating element and the feeding of the tape, and spring means for returning the reciproeating element to its initial position as soonas released at the conclusion of a feeding operation.

12. A device for serving strips of tacky tape including a frame adapted to be supported upon a table or the like, and provided with means for supporting a roll of tacky tape, said frame having an opening in the top thereof for withdrawal of the tape, an adhesion roller mounted on a horizontal axis and located adjacent to said opening in the'top of the frame, and in position to engage the tacky side of the tape and to support the free end thereof by adhesion of the tape thereto with the leading endproiecting through said opening, a slide disposed in a generally upright attitude, means: guiding the slide for reciprocation in up and down direction, said slide having a tape supporting portion at the top thereof projecting at all times above the top of the frame so that the projecting end of said slide and the leading end of the tape may be grasped simultaneously and drawn out to feed tape.

permit it to be grasped by the fingers of one hand together with the leading end of the tape, so that 13. A device for serving strips of tacky tape including a frame adapted to be supported upon a table or the like, and provided with means for supporting a roll of tacky tape, said frame having an opening in the top thereof for withdrawal of the tape, an adhesion'roller mounted on a horizontal axis and located adjacent to said opening in the top of the frame, and in position to engage the tacky sideof the tape and to sup-- port thefree end thereof by adhesion of the tape thereto with the leading end projecting through said opening, a measuring slide disposed in a generally upright attitude, means guiding the slide for reciprocation in an up and down direction, said slide having a. tape supporting portion.

at the top thereof projecting at all. times above the top ofthe frame so that the projecting end of said slide and. the leading end of the tape may be, grasped simultaneouslyuand drawn out to feed tape, stop means'for-limiting the -dis-.

tance through which-the slide may be drawn upwardly, so that the slide may be used to measa table or the like, and provided with means for facilitate grasping of the ure the length of tape drawn out, and means for severing the measured length of tape.

14. A device for serving strips of tacky tape including a frame adapted to be supported upon 8 supporting a rollof tack-y tape, said frame having an opening in the top thereof for withdrawal of the tape. an adhesion roller mounted on a horizontal axis and located adjacent to said opening in the top of the frame, and in position to engage the tacky side of the tape and, to sup-. port the free end thereof by adhesion of the tape thereto with the leading end projecting through said opening, and a tape supporting plate extending in an upright attitude adjacent ll said opening and above the top of the frame, to leading and of the tape and the withdrawal thereof in an upward direction.

15. A device for serving strips 01' tacky tape including a frame adapted to'be supported .upon a table or the like, and provided with means for supporting-a roll of tacky tape, said framehaving an opening in the top thereof for withdrawal of the tape, an adhesion roller mounted on a horizontal axis and located adjacent to said opening in the top of the frame, and in position to engage .the tacky side of the tape, and to support the free end thereof by adhesion of the tape thereto with the leading end projecting through said opening, and guide means engageable' with the tape beyond the adhesion roller for limiting the direction in which pull may be exerted upon that part of the tape leaving the adhesion roller.

THEODORE KRUEGER.