US1431575A - Tape-delivering machine - Google Patents

Description

S. B. EIVIIVIERT.

TAPE DELIVERING MACHINE.

APPLICATION FILED QCT. 20, 1921.

Patented UGIL. III, 1922..

3 SHEETS-SHEET I Patented @015. MP 1922.;

3 SHEETSSHEET 2 ATTOR Patented 00%. M 1922,

3 SHEETS-SHEE'I 3.

INENTOR GOPAN'Y, INC 015 NIT/W WORK, N.

lldPE-DWING MACHE.

application filed tllctober 20, 1W1. tel-lat We. 109,160.

a citizen of the United States, and a resident of New York, county of New York, and State of New York, have invented certain new and useful Improvements in Tape-lDe-I livering Machines, of which the following is a specification.

This invention relates to a machine for delivering tape, and is particularly adapted for delivering tape from a. roll and is preferably designed to also moisten the tape which is supplied gummed on one side, so that after the-tape has been severed it can be withdrawn from the machine ready for affiiring to 'a bundle or the like, these machines being used extensively in stores for holding the covering of bundles and packages in lieu of string. v

The invention relates to a machine of this kind in which a handle is pulled forward, which operation, at its initial movement, is easy. because the feeding mechanism is not engaged at once, but there is a slight movement of the handle before the mechanism is put in operation. 4 When the handle is pulled the required distance to feed the desired amount of tape through the feeding device and over the moistening device, and then when the handle is swung back, the feeding means is automatically disengaged and the cutting device is operated. The invention further consists in certain details of construction to be hereinafter more fully described and finally embodied in the claims.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a side view of the machine, partly broken away at one end. Figure 2 is-a side View of the opposite side of the machine. Figure 3 is a section on line 3-3 in Figure 1. Figures 1 and 5 are detail side views of the tripping means of the cutting device. Figure 6 is a detail perspective view showing apart of the slide mechanism, and Figure 7 1s a erspective view of one end of a rack which 1s part-of the machine. Figure 8 shows one form of means for limiting the stroke of the handle.

The casing 10 of the machine is usually made in'one piece, usually by casting, and has at One end a trough 11 which is of substantial depth and width to receive a roll 12 of tape, usually gummed tape, the trough be ng deep enough to insure the roll of tape being confined therein even when it is rotated by the operation of withdrawing tape from the roll. While the trough can be round at the bottom, ll prefer to make it with various angular faces 13 so that the points of contact are reduced and there is no undue friction on the roll when it is turned. In front of the forward lip 14 of the trough, and between the side walls 15 and 16 of the casing, is mounted a feeding means comprising a feeding roll 17, on top of which is mounted an idle feed roll 18, preferably pushed in contact with the roll 17 by a suitable spring bearing 19. The feed roll 17 is arranged on a shaft 20, on which shaft, and thus rotatable with the feed roll 17, is a ratchet 21. I

- When the gum is to be moistened T provide a moistening device which also serves to feed forward the strip of tape 22 which is pulled from the roll 12. Such moistening device includes a tank 23 within the casing, in which rotates a moistening roll 24 on the shaft 25. This shaft is rovided with a suitable ratchet 26. An id e roll 27 in suitable spring bearings 28 insures the strip 22 of tape being held down against the moistening roll.

The moistening roll 24 is made of any suitable material which, in its rotation, will carry on its surface a small film of water which is wiped against the under or gummed side of the tape as it passes through after being fed by the main feed roll 17 the feed roll 17 usually having its face provided with knurled portions 29, as will be seen from Figure 3.

Adjacent to the ratchets 21 and 26 is a suitable track 30 on which slides a slide 31 which is usually held i place by having its top and bottom edges extending over the top and'bottom edges of the track 30,-as will be seen from Figure 3. Secured to the face of the slide 31 is a rack 32. This rack has a limited downward movement relative to the slide 31, and in the form shown this is rack is inclined.

Means for manually operating the rack, and, through the rack, the slide, is provided by a handle 35 which swings on the casing, and to make its operation easy I prefer to ivot it at one end, as at 36, the free end fiaving the grip or hand-receiving part 37. A link 38 is fastened at one end of the handle intermediate the ends of the handle, as at- 39 and is fastened to the rack, as at 40.

It will thus be evident that on the initial movement of the handle, in other words, when the machine is started, the operation is easy, because in establishing a momentum all thatthe handle has to do is push on the rack, which is free to swing down, and as it swings down the teeth 41 of the rack engage the teeth 42 of the ratchet 21 and also the teeth 43 of the ratchet 26. These teeth are preferably in the form of ratchet teeth, that is, with one perpendicular face and one inclined face so that they can be readily engaged and disengaged during the forward and backward movement, respectively, of the rack.

I prefer to make the ratchet 26 much smaller than the ratchet 21 so that the moistening roll rotates faster than the feed roll 17, so that water is carried around by the roll to moisten the tape that is being fed through before a material or appreciable length thereof has been fed forward by the feed roll 17, and during the feeding of the tape the more rapid revolution of the moistening roll provides a wiping function to said moistening roll to insure the wetting of the gum on the under side of the strip.

A suitable spring 44 is installed to carry the handle back to its normal position when it is released, andit will be evident that When the handle is'released at the end of the desired amount of forward movement the rack 32 is carried upward out of mesh with the ratchet wheels first, and then the rack and the slide are carried back to their normal positions. This backward movement is limited by a suitable stop 45 shown in F igure 1.

A cutting device to be operated when the feeding has been accomplished is installed, preferably between the feeding roll 17 and the roll 24. The stationary'blade 46 is secured below the strip 22 of tape, and the swinging blade 47 is pivoted at one end, as at 48, to the fixed blade 46 and is normally held up by the spring 49 which is attached to the lever 50, the lever having a link 51 which is secured to the swinging blade 47.

The upward movement is limited by 52 which is engaged by the lever 50.

A latch 53 is pivoted on the stud 54 on the pin which the lever 50 swings, the latch being normally held downward by a suitable means, such as a weight 53", and is limited in its movement influenced by such weight by a pin 55 on the extension 56 of the lever which is the shaft to which the handle is attached.

It will thus be evident that when the handle is swung forward, this initial movement of the handle, which is taken up on the feedingdevice by swinging the rack 32 downward on the slide 31, also swings the nose 57 past the latch, as shown in Figure 4, so that even if a small length of tape is fed the nose passes over the latch to be in position to operate it, as shown in Figure 5, which illustrates the nose pressing the latch, which in turn pushes on the lever to snap the movable blade downward against the fixed blade to sever the strip, this being done on the return movement of the handle, and when the handle has returned to its original position a length of tape has been fed through, as shown in Figures 1 and 2, and the projecting end thereof can be grasped and the remaining length pulled through between the moistening roll and the roll 27, since the moistening roll is free to revolve as soon as the handle begins to swing'backward, since this backward motion pulls the rack away from its engagement with the ratchet 26.

It will be evident that any desired length within reasonable limits can be fed from the machine by one movement of the handle, a short movement feeding a short length of tape, and a long movement of the handle. of course, feeding a considerable length of tape from the machine and cutting it off on the return movement of the handle so that it is available to be pulled for its remaining length from the moistening roll.

In case it is desired to regulate, by a positive stop means, the amount of tape to be fed from the machine, I may employ such a device as shown in Figure 8, in which a stop plate 58 is placed adjacent to the handle 35 and which is provided with adjustable or variable stopping means, the form shown comprising spaced perforations 59 into which a stop piece or pin 60 is adapted to be placed, and whichever of the perforations that identifies a predetermined length of tape into which the pin is placed indicates the point at which the swinging of the handle stops.

It will be evident that minor changes can be made in the proportions, arrangement and formation of the parts without departingvfrom the scope of the invention.

or instance, while I have described a ratchet and a rack, it will be understood that a pinion and rack or any rotataole element actuated by a slidin bar can be used, even if driven only by riction and without teeth.

I claim: I

1. A tape delivering machine comprising a feeding-means including a feed roll and lit mantra a ratchet, a rack disposed so as to he moved downward in engagement with the ratchet on the initial forward movement of the rack, a handle for operating the rack, and a cutvtin device operable from the handle and inclu therewith and of less diameter than thev ratchet of the feeding roll, a rack, means for yieldingly holding the rack out of contact with the ratchets, and manually operable means for forcing the rack from its normal position into contact with the ratchets.

" 3. A ta e delivering machine comprising a casing aving an open trou h-like rear end for the reception of a rol of tape, a feeding and moistening means including a pair of ratchets, which means is adapted to feed tape from the roll," a slide in the side of the casing, a rack on the slide having a limited downward movement on said slide,

but held against movement longitudinally thereon, a handle arranged to swing on the casing, and a link connecting the handle with the rack.

4. A tape delivering machine comprising a casing having an open trough-like rear end for the reception of a roll of tape, a feeding and moistening means including a pair 0 ratchets, which means is adapted to feed tape from the roll, a slide in the side of the casing, a rack on the slide havin a limited downward movement on said sllde, but held against movement longitudinally thereon, a handle arranged to swing on the casing, a link connecting the handle with the rack, and a cutting device, said device including a latch normally inoperative which is placed into operative position on the initial forward movement of the handle, and which is operated to actuate the cutting device on the rearward movement of the handle.

5. A tape delivering machine comprising a feeding roll having a rotative driven member rotatable therewith, a bar to engage the rotative member to drive it, a slide supporting the bar and in slotted engagement therewlth so as to force the bar in engagement with the rotative member when the bar is ushed forward, and to force the bar away irom said rotative member when the bar is forced backward, and a handle connected to the bar for operating it.

In testimony that claim the foregoing, have hereto set my hand, this 19th day of October, 1921.

SAMUEL B. EMMERT.

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