US1538977A - Paper-feed device - Google Patents

Description

May 26, 1925. 1,538,977

M. FEYBUSCH ET AL PAPER FEED DEVICE Filed Oct. 17, 1921 2 Sheets-Sheet 1 A TTORNEYJ' May 26, 1925.

M. FEYBUSCH ET AL PAPER FEED DEVICE Filed 001;. 17, 1921 2 Sheets-Sheet 2 INVENTORS,

Patented May 26, 1925.

UNITED STATES 1,538,977 PATENT OFFICE.

MARTIN FEYBUSCH, OF NEW YORK, N. Y., AND PAUL W. FLEISCHER, OF WEEHAWKEN, NEW JERSEY, ASSIGNORS TO NEW JERSEY MACHINE CORPORATION, OF HOBOKEN, NEW JERSEY, A CORPORATION OF NEW JERSEY. I

PAPER-FEED DEVICE.

Application filed October 17, 1921.

To all whom it may concern:

Be it known that we, MARTIN FEYBUSOH, a citizen of the United States, and resident of the borough of Manhattan, city, county, and

State of New. York, and PAULW. Fnnrsonnu, a citizen of the United States, and resident of VVeehawken, in the county of Hudson and State of New Jersey, have jointly invented certain new and useful Improvements in Paper-Feed Devices, of which the following is a specification.

Our invention relates to devices for feed ing paper and like materials, particularly in the shape of webs or strips, and has been designed especially with reference to use in conjunction with machines in which a strip of paper or like material isapplied around the body or the cover of a box. The embodi ment of our invention illustrated herein relates to mechanism of the type in which the strip of paper has an intermittent motion at the portion which is delivered to the box or other article to be wrapped, but the mecha-' nism for feeding the paper from the main supply is in motion continuously, although its action on the paper may be interrupted temporarily in an automatic manner, soas to avoidfeeding too much paper. The 111- vention also provides improved means for insuring the feeding of the paper strip 1n a flat condition, and applying proper tension thereto. Other features of the invention will appear from the description followlng hereinafter, and the novelty will be'defined 35 in the appended claims.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a side elevation of one embodiment of our improved paper-feed device; Fig. 2 is a vertical section substantially on the line 22 of Fig. 1; Fig. 3 is a plan view of the device; Fig. 4 is a verticalsection on line 44 of Fig. 2; Fig. 5 is a detail section on line 5 5 of Fig. 4; and Fig. 6 is a section on line 6-6 of Fig. 3.

The frame of the machine is illustrated as provided with a support 21 for a roll 22 of paper or other material 23 of strip-llke character, said material passing in contact with guides 24 and then with a gumming roll 25 in contact with a transfer roll 26 which delivers to said roll 25, paste, mucilage or like material froma tank or trough 27 into which the roll 26 dips. The strip 23 Serial No. 508,355.

then passes in contact with guides 28 and 29, which may be stationary rods, or rolls that' while the drawing indicates a single.

strip of paper or like material at 23, we might employ a compound strip, as is done occasionally in the practice of putting wrapping strips on paper boxes.

From the guide 29, the strip 23 passes to afeed drum 30, preferably having its peripheral surface roughened, so that' the strip 23' will-be better gripped and fed by such surface. The shaft 31 of said drum is journaled in abracket or other support 32 secured to a pair of standards 33 mounted on the frame 20. 011 said drum shaft is secured, to turn in unison with the drum, a ratchet wheel 34, normally in driving en gagement with an operating pawl 35 which is fulcruined at 36 on a pulley 37 mounted loosely on said shaft 31. The pulley 37 is rotated continuously in the direction indicated by the arrow, by means of a belt 38 passing over a pulley 39 mounted to turn with a shaft 40 journaled at the upper ends of the standards 33 and driven in any suitable manner. For instance, said shaft may also carry rigidly a cone. pulley 41, connected by a belt 42 with a similar, but oppositelytapered cone pulley 43 mounted to turn with employed for securing the holder 47 in its adjusted position. The shaft -44 may be driven as follows: A step pulley 49, mounted to turn with said shaft, is connected by a laterally-shiftable belt 50* with a similar pulley 51 on a shaft 52, which also carries a i bevel wheel 53 in mesh with a like wheel 54 on a shaft 55 journaled in the frame 20 and rotated in any suitable manner.

Upon the shaft 40 is mounted loosely a feed roll 56, provided on its peripheral surface with two helical grooves 57 of opposite pitch, so that these grooves will diverge as shown, in the direction in which said roll rotates. In order that the shaft 40 may normally carry the feed roll 56 with it during its rotation, wehave provided a pawl-andratchet connection between them, consisting for instance of ratchet teeth 58 on a reduced end portion of said shaft, and of a pawl 59 pivoted on the roll 56 at 60 and pressed into engagement with said ratchet teeth by a spring 61. The diverging grooves 57 will tend to smooth out the paper strip 23 by forcing its edge portions apart in case the' strip is buckled transversely. In order to properly feed the strip 23, we prefer to so proportion the drive of the drum and of the roll 56 that the linear speed at the periphery of the latter will be greater than the linear speed of the, periphery of the drum 30, thereby keeping the strip under tension between the drum 30 and the roll 56,

the well-known type which reciprocate s lengthwise of the table, pulling, the strip 23 forward at the forward stroke (direction of arrow), but leaving this portion of the strip motionless during the return stroke of the feeding device (toward the right in Fig. 1). Inasmuch as feeding devices of this intermittent character are well-lmown in the art, we have deemed it unnecessary to illustrate this device in detail.

Between the guide 63 and the table 65 is ,placed another transverse guide 66 (rod or roller), which like the guides 28, 29, 62, 63 and the feed members 30, 56 engages the paper strip 23 on'the ungummed side. Be-v tween the guides 63 and 66, the paper forms a bight engaged by a transverse roller 67 in contact with the gummed side of the strip 23, which gummed side faces upward at this point. In order that the roller 67 may not remove any material amount of gum from the paper strip, this roller is formed with narrow ribs or ridges as shown in Figs. 3 and 6. The roller 67 is mounted on one end of an arm 68 fulcrumed on the frame 20 at 69 about a horizontal axis, and the weight of the roller tends to pull the strip 23 taut, under normal circumstances. It will be understood that in connection with the device for feeding the strip 23 over the table 65 we employ a retaining member (at the point 65) which prevents the strip from being pulled back over said table by the weight of the roller 67. In order that the action of the roller 67 may be regulated, we have shown a weight 70 adjustable toward and from the fulcrum 69, along an arm 71 which is rigid with the arm 68. In the particular construction shown, the arm 71 extends to both sides of the fulcrum. By putting the weight 70 on the side of the fulcrum opposite to the roller 67 the weight will act as a counterweight; by transferring the weight 70 to that portion of the arm 71 which is on the same side of the fulcrum 69 as the arm 68 and the roller 67, the weight 70 will increase the force with which said roller bears downwardly on the paper strip 23. "In order that the roller 67 may not pull the bight of the strip 23 down beyond a certain limit, we have provided a stationary stop 72 in the path of the arm 71, so that the parts mounted on the fulcrum 69 cannot swing down beyond the position indicated by the dotted lines in Fig. 1, and in this position the stop 72 will -take the weight of said swinging parts, so that the roller 67 will no longer press downwardly on the strip 23 and will no longer exert a longitudinal pull thereon. In order to insure that the paper strip 23 will be in contact with the roller 67 along a substantial portion of its periphery, even when said roller is in the raised position indicated by full lines in Fig. 1, we have provided the following arrangement: Betweenthe guide 63 and the roller 67 the paper strip 23 is engaged, on its ungummed side, by a roller or guide 73which forces the paper toward the left in Fig. 1, relatively to the straight-line position which the strip would take between the guide 63 and the roller 67 if this additional guide 73 were not used, obviously, the paper strip is thus held in contact with a longer are or peripheral portion. of the roller 67 than would be the case otherwise. The guide 73 is carriedby an arm 74 fulcrumed on the arm 68 at 75 and having its lower end connected by alink 76 fulcrumed at 77 upon a normally stationary arm or support 78. In order that the normal position of these parts may be varied, the arm 78 may be made adjustable about a stationary axis or rod (stud) 79, being secured after adjustment, by means ofa set screw 80 or otherwise.

In operation, a definite length of the strip time the strip 23 is advanced over the table 65, the bight of the strip will become shallower, thatis to say, the roller 67 will rise somewhat owing to the longitudinal pull of the strip. During the return movement of the intermittently-acting feed device, the portion of the strip 23 which is on the table 65 will remain stationary, and the weight of the'roller 67, assisted or counteracted by the weight 70, will cause the bight to become gradually deeper as'an additional amount of paper is supplied by the feed drum 30 and the feed roll 56, with which the paper is kept in contact by the stretching action or tension produced'by said roller 67. The speed of the drum 30 and of the roll 56 are preferably so proportioned that the length of paper which they will tend to feed during acomplete operation of the intermittently-acting feed device (both forward stroke and return stroke together) will be in excess of the length of paper required by said device. Owing to this excess feed, the bight will increase in depth during the return or inactive stroke of the intermittently acting feed device, until the arm 71 comes against the stop 72. As soon as this occurs, the tension of the strip 23 is relaxed, and it will no longer bear against the feed members 30 and 56 with suflicient force to be fed by their rotation, but these members will slip under the strip 23', which will thus become temporarily stationary. The feed device will therefore operate properly under all circumstances. We might so proportion the partsthat the amount which the members 30 and 56 tend to feed during the time the intermittentlyacting feed device performs a com lete toand-fro movement, would be exact y equal to the amount by which the paper is fed by the said intermittently-acting feed device during its forward or active stroke; in each case the device illustrated will Worksatisfactorily, but the best operation will be obtained with, the feed proportions first explained.

The purpose of the loose connection between the feed members 30, 56 and the rotary parts driving them, is to enable the paper strip 23 to be readily threaded into position when starting the operation. Inasmuch as the said strip is in contact with the periphery of the drum 30 and of the roll 56 (and particularly the former) along a considerable distance or arc, the friction opposed to sliding or slipping the paper over said members 30, 56 would be very considerable if said members could rotate only in unison with their respective driving mechanisms. By the loose arrangement described, however, the members 30 and 56 are enabled to turn freely, and independently of their driving mechanisms, as the paper strip 23 is threaded over them toward the intermittently acting feed device. In the case of the feed roll 56, which engages the paper strip along a much smaller are thanthe drum 30, such loose connection is not so lmpprtant as in the case of said drum.

hile we have stated that we prefer to operate the feed roll 56 in such a manner cations may be made without departing.

from the natureof our invention as set forth in the appended claims.

The guides 28, 29, 62, 63, preferably made with collars, adjustable to different distances from each other and adapted to engage the elges of the strip 23, as shown in Figs. 2 and 3.. This is of especial importance .in connection with the guide 73, engaging the strip 23 adjacent to the tension member or roller 67, since no edge guides are provided on the latter.

We claim:

1. In a device of the class described, a frictional feed member moving continuously in one direction, intermittently feeding mechanism to which said member delivers the material fed, a movable tension device engaging the material between said member and said intermittently feeding mechanism to normally pull said material into feeding engagement-with said member, said tension device comprising a pivotally mounted lever having a roller for engaging said material mounted thereon at a substantial distance from the pivotal point of said lever, and a counter balancing weight connected with said lever and a stop to arrest said. tension device so as to discontinue the feeding engagement of the. material with said frictional feed member.

2. In a device of the class described, a frictional feed member moving continuously in one direction, intermittently feeding mechanism to whichsaid member delivers the material fed, a movable tension device hearing by its weight on the portion of the material between said member and said intermittently feeding mechanism to normally pull said material into feeding engagement with said member, said tension device comprising a pivotally mounted lever having means mounted. thereon at a substantial distance from the pivotal point of said lever for engaging said material, and" a counterbalancing weight adjustably mounted upon said lever and a stop located within the path of movement of said lever to arrest said tension device in a definite position so as to discontinue the feeding engagement of the material with said frictional feed member.

3. In a paper feeding device, a rotary 73, and 66 a,

drum of large diameter, means to rotate I fed about a portion of the periphery of said drum, an intermittently feeding mechanism to which said drum delivers the paper, a

. gravity actuated pivoted lever having means for engaging the paper between said drum and intermittently feeding mechanism to place said paper under tension and hold it in frictional engagement with said drum, and a stop located in the path of movement of said arm whereby the tension upon said paper will be released when said arm engages said stop.

4. In a device of the character described, a freely rotatable paper supply roll, an intermittently feeding mechanism, means to train a considerable length of paper between said intermittently feeding mechanism and said supply roll, and to feed it intermittently to said mechanism, said means comprising a rotary drum oflarge diameter, guiding rolls for training said paper about a portion of the periphery of said drum, and a gravity actuated pivoted lever having means for engaging the paper between said mechanismand drum to place said paper under tension and cause it'to be held in frlctional engagement with said drum, and a stop located in the path of movement of said lever to cause the tension upon the paper to be released and interrupt the frictional engagement thereof with said drum when a predetermined length of said paper extends between said drum and feeding mechanism.

5. In a device of the class described, a feed member moving continuously in the same direction, intermittently feeding mechanism to which said member delivers the material fed, a Support pivoted on a stationary fulcrum, a tension member carried by said support and engaging said material between said feed member and said intermittently feeding mechanism, an arm pivoted to said swinging support, a link pivoted on a stationary fulcrum and connected pivotally with said arm at a distance from the pivot of the arm, and a guide forsuch material, carried by the said arm and adapted to engage said material between the ten sion member and said feed member.

In testimony whereof we havesigned this specification.

MARTIN FEYBUSCH. PAUL W. FLEISCHER.

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