US3015453A - Web feeding and winding device - Google Patents

Description

Jan. 2, 1962 F. J. FURMAN ET AL 3,015,453

WEB FEEDING AND WINDING DEVICE Original Filed Jan. 20, 1954 6 Sheets-Sheet 1 IN VEN TORS FRANK J. FURMAN WALTER W WAGNER AGENT Jan. 2, 1962 F. J. FURMAN ETAL 3,0

WEB FEEDING AND WINDING DEVICE 6 Sheets-Sheet 2 Original Filed Jan. 20, 1954 INVENTORS FRANK J. FURMAN WALTER W. WAGNER AGENT Jan. 2, 1962 F. J. FURMAN ETAL 3,015,453

wEB FEEDING AND WINDING DEVICE ori inal Filed Jan. 20, 1954 6 Sheets-Sheet s INVENTORS FRANK J. FURMAN WALTER W. WAGNER AGE Jan. 2, 1962 F. J. FURMAN ETAL WEB FEEDING AND WINDING DEVICE Original Filed Jan. 20, 1954 6 Sheets-Sheet 4 IN VEN TORS FRANK J. FURMAN WALTER W. WAGNER Jan. 2, 1962 F. J. FURMAN ET AL 3,015,453

WEB FEEDING AND WINDING DEVICE Original Filed Jan. 20, 1954 6 Sheets-Sheet 5 INVENTORS FRANK Jv FURMAN WALTER W. WAGNER AGENT Jan. 2, 1962 F. J. FURMAN ET AL 3,015,453

wEB FEEDING AND WINDING DEVICE Original Filed Jan. 20 1954 6 Sheets-Sheet 6 BRAKE CONTACTA BRAKE MAG NET V/AIIIIIW AGENT INVENTORS 79 FRANK J. FURMAN WALTER w. WAGNER United States Patent 3,015,453 7 WEB FEEDING AND WINDING DEVICE Frank J. Furman, Endicott, and Walter W. Wagner, Endwell, N.Y., assignors to International Business Machines Corporation, New York, N.Y., a corporation of New York Continuation of application Ser. No. 405,171, Jan. 20,

1954. This application Apr. 29, 1959, Ser. No. 809,876

1 Claim. (Cl. 242--55.14)

This invention relates generally to web feeding devices and more particularly to devices of this kind wherein a continuous web is fed, by intermittently operating drive means, from a supply roll, through a work station, to a take-up roll. This application is a continuation of our application, Serial No. 405,171, filed January-20, 1954, now abandoned.

A major object of the invention is to provide a Web feeding device of the kind described, wherein the drive means, though acting by intermittent jerks, does not break the web, nor cause the supply reel tooverrun.

A further object is to provide a device of the kind mentioned just above, wherein the movement of ,the take-up reel is so controlled that the web is wound on it under a substantially uniform and correct tension to maintain the desired tightness of the roll.

A further object of the present invention is to provide a dick strip feeding device having an interlock mechanism which functions to protect portions of said device from breakage upon removal of the device from the carriage.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of example, the principle of the invention and the best mode, which has been contemplated, of applying that principle,

In the drawings:

FIG. 1 is a perspective view showing the dick stripfeeding device mounted on the paper feeding carriage of an alphabetic tabulating machine.

FIG. 2 is a front elevation view of the dick strip feeding device. shown mounted on the carriage frame. f

FIG. 3 is a plan view of the device showing the friction drive to the take-up reel and the clock spring drive and braking mechanism for the supply reel.

PEG. 4 is a right side elevation view of the device.

FIG. 5 is a left side elevation view of the device showing the dick strip drive.

FIG. 6 is an enlarged sectional view taken on line 6-6 of'FIG. 5 showing in detail the dick strip feed rolls, punch roll and die roll. V

FIG. 7 is a diagrammatic view showing the driving connections to the carriage platen.

For purposes of illustration the invention is shown in connection with an alphabet printing 'tabulator of the kind disclosed in the patent to Rabenda--2,S69,829, filed May 3, 1949, and issued October 2, 1951. This patent illustrates the main components of a tabulator known as the IBM 407 alphabet printer with storage. Heretofore,

it was used primarily for printing address and accounting data on wide record material advanced vertically with respect to the printing unit by means ofa carriageknown as the IBM 922 tape controlled carriage..The details of such a carriage are also disclosed in the cited patent.

Reference to FIG. 1 shows that in the present instance a narrow strip or Web 10 of address receiving materialis advanced diagonally across the platen P and behind an inking ribbon 11 arranged in the usual fashion parallel and coincident with the printing line across the printer 7 of the tabulator in front of a plurality of separately adjusted type wheels or 'printingelements 360. The tabulator controls for taking address data from record cards Patented Jan. 2, 1962 v and for controlling the print wheels to record the data on the dick strip in the form shown in FIG. 1 forms no part of the present invention and therefore will not be discussed. Details of such controls may be referenced from a copending Nolan application, Serial No. 324,563, filed on December 6, 1952, and now Patent No. 2,770,188, for a dick strip printer which is a machine of the type disclosed in the Rabencla Patent No. 2,569,829. The present invention is concerned primarily with the feeding device, indicated generally at D on FIG. 1, for feeding the dick strip in steps diagonally across the platen P of the carriage device C.

Referring to H68. 2 and 3, the outer frame of the strip feeding device comprises a'pair of outer side plates 12, 13 joined together in the front by a tie bar 14, at the back by a stationary shaft 15 and on the bottom by another tie bar 16. This outer frame is adapted for convenient mounting onto a pair of side castings 17, 18 of the IBM 922 carriage through a pair of screw studs 19 fastened at the rear of the outer plates and supported in slots in the side frames and a pair of support studs 20 fastened nearthe front of the side plates and also supported on the side castings of the carriage. A pair of handles 21, fastened between the tie bars 14 and 16, are provided for lifting the device into and out of position on the carriage.

The strip feeding device also includes an inner frame comprising the two side plates 22 and 23. These plates are fastened in the front to the tie bar 14 and are supported at the bottom by the tie bar 16. The side plates 22, 23 serve to support a take-up reel 24 and a supply reel 25 free on the auxiliary shafts 26, 27 journaled in the plates 22 and 23, respectively. Referring to FIG. 3 in particular, the take-up reel 24 actually comprises a pair of retaining discs 28, 29 mounted on a bushing 30 which is free on the shaft 26. The retaining disc 29 is fastened to the bushing whereas the retaining disc 28 slides onto a reduced threaded portion of said bushing and is retained thereon by a lock nut 31 and thumb screw 32 which holds the reel assembly on the shaft. Fasteued to the inside of retaining disc 29 is a shell 33 on which may be mounted a cardboard core 34. The leading edge of the dick strip nut 38 and thumb screw 39. A shell 40 is again provided for supporting the cardboard core of a supply roll of the dick strip .10.

As will be described, the dick strip 10 is pulled off of the supply reel and Wound on the take-up reel and during the course of such movement, the strip is guided diagonally across the carriage platen P (FIG. 2) by a pair of angle guides 41 and 42 fastened to each end of a guide bar 43. The guide bar 43, through a pair of bushings 44, 45 is'pivoted on a pair of studs 46, 47 attached to a bell crank arm 48 and an arm 49, respectively. The arms 48, 49 are in turn fastened to studs 50, 51 which are journaled in support plates 52 and 53 fastened to the tie bar 14. A link 54 is provided to connect a pair of arms 55, 56 fastened to the back ends of the studs 50, 51.

V A, spring thumb screw 57 slideable in the bell crank arm either a downward position as shown in FIG. 2, in which position the dick strip is in position to be recorded on, or to swing and lock the assembly in and up position by moving the thumb screw to the right side of block 58. When adjusting the assembly in the up position, the travel of guide bar 43 will be suflicient to carry the bottom corners on the aligner guides to a position above the lower edge of the support bar 14 in order to protect the guides when the dick strip feed device is removed from the carriage and not in use. When not in use, the dick strip device would likely be set down on a table or the like with the possibility of the aligner guides becoming broken if they were not retracted vertically to allow the support 1 bar 14 to bear the load.

An interlock mechanism is provided to make it necessary that the aligner guide assembly be retracted before the dick strip feed device can be removed from the carriage. This mechanism comprises a pair of slotted members 59 (FIG. 3) slideable on screw studs 60 on the back side of the tie bar 16. Fastened to the far ends of the slideable members are locking pins 61 which fit into holes in the carriage frame members 17 and 18 to secure the dick strip feed device on the carriage. Springs 62 fastened between the studs 60 on the tie bar and studs 63 on the slideable members normally bias said members so that the locking pins will engage in the carriage frame members. The proximate ends of the slideable members are formed into finger tabs between which extends the back end of a link 64 pivoted at 65 to a bracket 66 fastened to the tie bar 16. Fastened at the back end of the link is a stud 67 for controlling the amount of sliding movement that can be imparted to the members 59.

The front end of the link 64 extends through a slot 68 in the guide bar 43 and, as such, the link will be pivoted when the aligner guide assembly is adjusted. When the aligner guide assembly is in its downward operative position, the stud 67 in link 64 will be positioned between the tab ends 59a of the members 59 to prevent the members from being squeezed together enough to release the locking pins 61 from the carriage frame. When the aligner guide assembly is adjusted to its up or retracted position, the back end of link 64 drops and the stud 67 will clear the tab portions of the members to allow the locking pins to be retracted from the carriage frame thus freeing the dick strip feed device for removal.

The drive for the dick strip device is taken directly off of the carriage platen P and before describing the drive components in detail, it is thought well to briefly point out a diagrammatic scheme to exemplify the method of driving the platen.

Referring to FIG. 7, closure of a switch SW on the tabulating machine will supply power for running a carriage motor CM. The shaft 69 of the motor has fastened thereon a driving disc 70 which engages and drives a clutch disc 71 through pin connection 72. Clutch disc 71 is free on a sleeve 73 fastened on the shaft and is urged into driving engagement with the disc 70 by a spring blade 74 fastened to the sleeve 73.

A pair of circuit breaker contacts CB in the tabulator will close each cycle to pulse a carriage eject magnet EM which, through armature 75 and cam roller 76, will result in the driving of clutch disc 71 to engage and drive 77 fast on shaft 78. The shaft 78 is the clutch disc coupled at 79 to the platen'shaft 80 (FIG. 2) journaled inthe carriage frame members 17, 18 and hence the platen P is advanced each cycle.

As was previously mentioned, the dick strip is advanced by being pulled from the supply reel onto the take up reel and the drive mechanism for accomplishing this is located on the left side of the device and beneath the take-up reel 24. Tracing the feed path of the dick strip through this mechanism, reference to FIG. 5 discloses that the strip travels from the left angle guide 41 up and over a roller on a fixed guide stud 82, along a grooved bed plate 83, in between a die roll 84 and punch roll 85,

an idler gear 91 rotatable en a fixed stud 92 and driven by the platen gear 81. The idler gear 91 drives a the roll gear 93 fastened to the die roll 84 which in turn is pinned to a jack shaft 94 rotatable in the inner and outer frame members 12 and 22. The die roll has a die opening 95 adapted to receivea punch element 96 set-screwed in the punch roll 85. The punch roll is journaled on a tap tionary shaft 97 and has fastened thereto a gear 98 which is driven by a gear 99 set=screwed on the die roll jack shaft 94, The punch and die rolls cooperate to p nch chadless type of re istration holes at intervals and tween addresses along the dick strip; Chadles's holes are holes which have been paftially punched so that each hole retains its chad or lid and these re istration holes are used in p chines such as mail labeling machines. -It should also he pointed out that the punch and die rolls also se'ifve as feed rolls and are the only rolls that positively pull the tape across the device The punch element itself serves to exert a pull on the dick strip for approximately 180 ro tation of the punch roll after which the dick strip is stripped of the punch by a stripper plate 100 fastened between the inner and outer frame members.- 1

From the punch roll, th diek strip'travels around the ball bearing rollers 86 (FIG. 5) mounted on a floating shaft 101 which is adapted to slide vertically. A pressure spring 102 is provided to urge the rollers to ride on the surface of the punch roll 85, the rollers functioning to provide additional wrap around for the strip on the punch roll '85 and thereby provide some frictional drive for the strip. 'As the strip tfeeds off from the rollers 86, it co operates with an actuating member 103 of a Micro-switch 104. The Micro-switch has a pair of stop contacts num her 1 in the eject magnet circuit and these contacts are normally held closed by the tension of the dick strip 1 However, should the dick strip break, the Micro-switch will open the stop contacts to prevent further operation of the dick strip drive.

The studs 87 and 90 serve to guide the strip around the roller 88 on the pretension arm 89. The pretension arm In connection with the winding of the strip, it is 'necess sary that the take-up reel be advanced as the dick strip is advanced. The reel drive is taken from a gear 107 fastened to the jack shaft 94. The gear 107 drives a gear 108 fastened on a shaft 109 (-FIG. 2) jour-n'aled between the inner frame members 22, 23 and the shaft has pinned thereto a sprocket wheel 110. The drive from the sprocket wheel 110 is transmitted-by a chain 111 to a sprocket wheel 112 which floats ona bushing 113 (FIG.

3) keyed to a clutch dise116. The sprocket wheel has. friction disc projections 114 on each side and serves as a slipping clutch between a disc, 115 keyed to shaft 26 and. the disc 116 and bushing 1'13 free on a hub of disc 115. The sprocket wheel is normally forced against the disc portion 115 by a spider spring 117 retained between the disc 116 and a pair of adjusting nuts 118 on the member- 115. As a result, the drive .is transmitted through the hubof 115 and shaft 26 to a drive disc 119 pinned to said shaft and having a tab 120 which engages the retaining disc' 29 to effect the drive of the take-up reel 24.

The application of thepretension armand the slipping proces ing the dick strip through other tain equal advancements.

clutch to the drive of the take-up reel can be appreciated when it is taken into consideration that the carriage clutch delivers the drive to the dick strip device with a sudden shock motion. The pretension arm and slipping clutch in effect exert opposing forces on the dick strip with the slipping clutch dominating and the combination of the two serve greatly to soften the shock on the dick strip when the carriage clutch is engaged. The pretension 'arm oscillates against the weak force of spring 106 while the slipping clutch delivers an accelerating motion to the take-up reel rather than a sudden jerk.

Also, it can be appreciated that it is desirable to maintain an equal spacing of the addresses recorded on the dick strip and consequently the dick strip should be advanced by equal amounts. As the roll being wound on the take-up reel increases in diameter, it becomes necessary to decrease the angular movement of the reel in order to main- The slipping clutch automatically accomplishes this by varying in slippage as the load on the reel varies. Adjustment of the nuts 118 may be made to control the tightness of the dick strip roll. A cover shield 121 fastened to frame member 22 is provided as a safety guard for the sprocket drive and clutch assembly.

As the dick strip is being pulled onto the take-up reel, another feed mechanism operates to let out dick strip from the supply reel 25. This mechanism comprises a pair of feed rollers 122 (FIGS. 3 and 4) rotatable on a stud 123 which is fixed to a feed roll arm 124. The feed roll arm floats on an eccentric shoulder 125 of a bushing 126 fastened to the frame member 13 by adjusting screw 127. The feed roll arm floats between a flange on the bushing 126 and a collar 128 and, by means of adjusting screw 127, the distance between the axis of the feed rolls and the axis of shaft 109 may be varied.

The reason for the eccentric adjustment is to provide a means for controlling the tension on a sprocket chain 129 which operates between a sprocket wheel 130, fastened between the feed rollers 122, and a sprocket wheel 131 on shaft 109. The sprocket wheel 131 is fastened to a clock spring housing 132 and both are free on a bushing 133 fastened to shaft 109. A clock spring 134 connected between pin 135 in said bushing and a pin 136 in the housing serves to transmit the drive of shaft 109 to the sprocket chain and feed rolls with a smooth accelerating motion. The feed rolls are urged to bear against the roll of dick strip on the supply reel by a spring 137 fastened between the feed roll arm 124 and the frame member 13 and it can be seen that each time shaft 109 is rotated, the feed rolls operate to turn the supply reel and supply roll to let out a quantity of dick strip.

Referring to FIG. 4, the dick strip travels from the supply reel, under a guide stud 1'38 fixed to frame member 13, around stud 139' on a pretension arm 140, around a pair of roller studs 141, 142 fixed to the frame member 13 and through the angle guide 42. Also in the path of the dick strip is an actuating member 143 for a second Micro-switch 144 which serves to open the stop contacts number 2 and disable the dick strip feed should the dick strip break.

The pretension arm 140 is pivoted on a stud 145 fastened to the frame member 13 and is normally biased counterclockwise by spring 146. The amount that the arm pivots about its stud is limited in either direction by a plate 147. The pretension arm functions to control a portion of the dick strip so as to maintain a free moving loop of the same in readiness to be pulled by the take-up reel when an advancement is required. In this connection, a pin 148 on the pretension arm operates to close a pair of normally open brake contacts 149 during a portion of each advancement of the dick strip. When the dick strip is being let out by the supply reel, the pretension arm will be allowed to pivot counterclockwise until the pin thereon closes the brake contacts to complete a cir- 6 cuit (FIG. 7) for energizing a magnetic brake, now to be described.

The magnetic brake functions to lock the supply reel against further movement to prevent the reel from being overd-riven since, with a heavy dick strip rol-l mounted on it, it would tend to coast beyond the necessary feeding distance. Referring again to FIG. 3, the magnetic brake comprises a brake magnet coil 150 cemented into a drum 150a which is fastened to the frame member 23. A magnet armature 151 is provided which floats on a clamp spacer 151a. A ball bearing member 152 is provided to support the supply reel shaft 27'. A brake disc 153 is fastened to the shaft 27 and has a driving pin connection 154 with the magnet armature.

Advancement of the supply reel is transmitted to the shaft 27 through the tab connection 155 between the reel and a collar 156 pinned to the shaft. Energization of the coil 150 will attract and lock the armature 151 against drum 150a thereby locking the brake disc, shaft and supply reel against movement. A spring 157 serves to restore the armature and brake disc to the running position upon de-energization of the coil. Of course, during advancement of the dick strip, the pretension arm 140 pivots clockwise against the tension of spring 146 and thus it can be understood that the pretension arm and brake assembly cooperate to control the tension on the dick strip for proper feeding.

Means are provided for preventing any reverse movement of the sprocket shaft 109 which comprises a hub 158 (FIG. 3) pinned to shaft 109 and a cover 159 fastened to the frame member 23, said hub and cover having a spring 160 confined between them. The spring is suitably clamped to a collar 161 loose on the shaft. If the sprocket shaft starts to rotate in the wrong direction, the spring will jam between the hub and the cover to stop further movement of the shaft in that direction.

While there have been shown and described and pointed out the fundamental novel features of the invention as applied to a preferred embodiment, it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art, without departing from the spirit of the invention. It is the intention, therefore, to be limited only as indicated by the scope of the following claims.

What is claimed is:

In a device of the class described, a web, a supply reel for said web, a take-up reel for said web, drive means for intermittently driving said take-up reel, driving rollers in contact with the web on said supply reel and operated by said drive means to intermittently drive said sup-ply reel, web advancing means disposed between said reels and op erated by said drive means to intermittently pull said web from said supply reel toward said take-up reel, a pretension roller arm between said web advancing means and take-up reel and around which said web is looped to form a free loop extending in a direction opposite to the direction of web feed, said pretension roller arm being effective to reduce shock to the web when said take-up reel is called into operation, a second pretension roller arm between said web advancing means and said supply reel and around which said web is looped to form a free loop extending in the same direction as the direction of web feed, said second web loop effective to move said second arm towards the supply reel as the loop decreases due to the web being pulled by said web advancing means, stop means for limiting the movement of said second arm towards said supply reel, means for causing said second arm to move in a reverse direction as web is being let out by said supply reel, a braking device for preventing overdriving of said supply reel and web, switch means, and means for positioning said switch means in the path of movement of said second pretension roller arm, said switch means being operated by said second pretension roller arm each time a supply of web has been let out by said supply reel for effecting operation of said braking device to lock said supply 'reel against overdriving advancement, said second pretension roller arm also being effective each time a supply of web is pulledby said ad-, Vancing means to operate said switch means for. eifecting 5 operation of said braking device to release said supply reel for advancement whereby a free moving loop of web is re-formed in readiness to be pulled by said web advancing means when each advancement is required.

References Cited in the file of this patent UNITED STATES PATENTS Wood Jan. 13, 1931 Smith Mar. 26, 1935 Olson Feb. 16, 1954 Ward Nov. 29, 1955 Fundingsland Oct. 7, 1958

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