US2426944A - Paper feed mechanism - Google Patents

Paper feed mechanism Download PDF

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Publication number
US2426944A
US2426944A US458909A US45890942A US2426944A US 2426944 A US2426944 A US 2426944A US 458909 A US458909 A US 458909A US 45890942 A US45890942 A US 45890942A US 2426944 A US2426944 A US 2426944A
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United States
Prior art keywords
feed
line
yoke
paper
link
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US458909A
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English (en)
Inventor
Mueller John
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Unisys Corp
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Remington Rand Inc
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Priority to NL74832D priority Critical patent/NL74832C/xx
Application filed by Remington Rand Inc filed Critical Remington Rand Inc
Priority to US458909A priority patent/US2426944A/en
Priority to GB15306/43A priority patent/GB568956A/en
Priority to FR938158D priority patent/FR938158A/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2142—Pitmans and connecting rods
    • Y10T74/2159—Section coupled

Definitions

  • the invention relates to the paper feeding mechanism of ofiice printing machines and more especially to that of record controlled tabulating machines.
  • the mechanism herein specifically described is designed chiefly to supplement the ordinary line space device with means to execute the longer feeds of the paper that are required when printing on a web of paper predivided into forms, but it is also capable of other classes of work.
  • the mechanism can be pre-set for different extents of feed and for various different programs of automatic operations as re--.
  • quired by the work to be done It may be used to print a single line on each form; to print a list of items with a long feed from the bottom of one form to a predetermined line of the next; to feed from the end of one group of items to a predetermined line of the next form; to feed from the end of one group of items to a heading line of the next form and then, after printing a heading, to feed to the first line; to feed from the bottom of one form to the first item line of the next, skipping the space reserved for the heading; to feed from the end of one group of items a pre-set uniform distance to the first line of the next group, where the web is not divided into forms; and in other ways.
  • Long feed operations may be initiated by tripping a clutch, which may be done in various ways. In the instance described, this is done by the total taking control of the tabulator, by means controlled by a special hole in a record card, and by the paper feed mechanism itself after printing "a certain number of lines.
  • the entire long feed mechanism may be disabled for jobs where it is not required.
  • Fig. 1 is a general vertical sectional view of the Powers tabulating machine to which the invention is shown applied;
  • Fig. 2 is a right hand side elevation of the upper portion of said machine
  • Fig. 3 illustrates a sample of one lng done by the mechanism of the invention
  • print- Fig. 4 is a left hand side elevation of the paper feed mechanism of the present invention, in place on the machine;
  • Fig. 5 is a left hand side view of a certain stop and the means by which it is controlled;
  • Figs. 6 and '7 are respectively an elevation and a front view of a detail; partly broken away and partly in section;
  • Fig. 8 is-an elevation as viewed from the left of some of the compensating feed mechanism shortly after the start of its return stroke;
  • Fig. 9'i s a section on the line 99 of Fig. 8;
  • Fig. 10 is a left hand side view of the compensating feed mechanism, the uniform feed mechanism being mostly omitted;
  • FIG. 11 shows detached and on a larger scale, a portion of the mechanism shown in Fig. 10;
  • Fig.12 is a view similar to Fig. 10, but showing the uniform feed mechanism with most of the compensating mechanism omitted;
  • Fig.13 isa detached view of some of the parts of Fig. 12;
  • Figs. 14, 15, and 16 are-respectively a left hand side elevation, a front elevation, and a top plan view of a portion of the carriage, the supporting framework and afew elements of the mechanism of the paper feed mechanism;
  • Fig. 17 is a time chart
  • Fig. 18 is a section on line
  • the inventio is shown applied to a Powers punched card controlled tabulating machine of the kind described and claimed in my prior application for Letters Patent S. N. 316,739, filed February 1, 1940, and
  • the totalizers 68 are moved into engagement with the actuators 66 by rock arms II fast on rock shafts I2 which by means not shown are rocked in suitable timing for adding and for total taking.
  • the types 61, of which there are 35 on each bar. are driven by hammers I3 against a platen".
  • the head section 50 has a front drive shaft I and a rear drive shaft I5, driven by suitable gear ing from and in synchronism with the base drive shaft 52.
  • Fig. 3 shows an instance of the kinds of work that can bB'dOIlB automatically by the invention under one pre-setting of the mechanism.
  • a web of paper 80 (usually of several thicknesses) is divided by tearing lines 85 into forms two of which appear in Fig. 3, the web being folded in fanform on said lines 05.
  • these forms are shown each of a length of 22 line spaces.
  • the lines are numbered at BI only forthe purposes of this description. Lines 1-5 are occupied by printed matter. Lines 6-10 are set aside'for a heading consisting of the name and address of the particular account, and lines 11-20 for items, comprising designatory matter and amounts to be totalized.
  • the heading may 'consist of from 2 to 5 lines, and the sheet will take a maximum of items. These dimensions are, of course, merely by way of a specific example.
  • the mechanism includes two feed members, one herein called the "compensating feed” and the other the “uniform feed,” but this distinction might not necessarily apply to other instances of the invention.
  • the compensating feed mechanism feeds the form to line 6, and the heading is printed from two or more cards, the last one of which has ,a special hole which causes the compensating mechanism to feed the paper to line 11.
  • the items are printed, one from each card, until the sensing of the first card of the new group changes the designation, whereupon the machine automatically makes a blank stroke, feeding the paper one line, and then prints the total. This brings into operation the compensating feed to line 6 of the next form.
  • the feed of the paper to line 20 sets into operation the uniform feed which feeds'the paper directly to line II of the next form, skipping the heading.
  • the balance of the items are then printed, followed by the total, and the paper is fed to line 6 of the next form. Variations in the printing and in the setting up of the mechanism, will be described hereinafter.
  • Figs. 1 and 2 are copied from the Muellerapplication, S. N. 316,739, and in Figs. 14, 15, and 16. Except in one immaterial respect which will be described hereinafter the carriage and platen and the manner in which they are mounted and controlled, are or may be identical with the disclosure in the patent to Lasker and Mueller, patented July 6, 1943, No. 2,323,816.
  • Two brackets I00 mounted on the side frames IIiI of the head 50, support a fixed rail I02 on which a main carriage member I03 is mounted by roller bearings.
  • the platen I4 is iournaled in end brackets I04 of an auxiliary carriage member including also a longitudinal bar I05.
  • Said auxiliary member is mounted at each end on two parallel bell-cranks I05, connected together to rock in unison by a link WI.
  • the lower bellcranks I06 are fast on the ends of a transverse rock shaft I00 (Fig. 1) all as fully disclosed in Patent 2,323,816.
  • the construction is such that a rocking motion of shaft I08 moves the platen horizontally a short distance toward and from the types 51, a spring III) tending to move it toward the types. It is normally held retracted by a rock shaft III having arms I.i2 which carry rollers bearing against a flange II3 projecting from the shaft I08.
  • Said shaft I II has an arm Ill having 9.
  • lug I I9 engaged by a hook II5 which looks the parts in normal position. Said hook is released on each printing cycle to allow the platen to advance to printing position, and the shaft I I I is then rocked back to normal.
  • the Powers line space mechanism at the right hand end of the carriage, is shown in Fig. '2.
  • the line space wheel IIO on platen shaft iI'l is operated by a pawl II8 oscillated by a rock shaft I20 through the linkage shown.
  • the special feed mechanism of the present invention is at the left hand side of the machine.
  • the total taking control mechanism of the Powers machine of the hereinbefore mentioned patent and application is brought into action when the first card of a new group is sensed by thedevices 585I (Fig. 1) by means i mechanism I.2I which detects the change of designation.
  • Said control mechanism acts to retainsaid first card in the sensing chamber, to lock the card picker 53 out of action, and to lock the stops 64 in their retracted or inactive positions shown in Fig. 1.
  • the total taking mechanism controls four rock shafts in the upper part of the machine, two of which shafts have been found convenient for modifying the action of the present paper feed mechanism, viz., a designation shaft I22 and-a total shaft I23.
  • the paper is advanced by a feed unit at the left hand end of the paper carriage, which unit comprises a frame plate I25, the outline of which is best shown as viewed from the right in Fig. 8 and as viewed from the left in Fig. 14.
  • this frame plate and the balance of the unit are so mounted as to partake of the short front and back movement of the platen hereinbefore described; but on a machine whose platen does not have that movement, such mounting would not be necessary.
  • Such movement is imparted to the plate I25 by the platen axle which passes through a sleeve I25 (Fig. 16) seated in said plate.
  • the plate I 25 is supported by a pivot IZ'I passing through an upright arm I20 which is built up of two plates which embrace the plate I25 (Figs. 12 and 16).
  • the arm I28 is pivoted on a stud or post I30 projecting from the fixed bracket I00 (Figs.
  • The. frame plate I25 is further supported by two arms I3I (Figs. 9 and 14), which can swing on a fixed pivot I32 and whose upper ends carry a pivot rod or shaft I33 which passes through said plate.
  • the arms I3I are parts of a structure comprising also a flanged sleeve I34 to which they are riveted and which has its bearing on.
  • the stud I32, which stud is secured to a bracket I35 bolted to the head frame IOI.
  • the platen is driven by a large gear I36 whose hub I31 (Figs. 8 and 9) is journaled on the shaft I33, and hich meshes with a pinion I38 fast on the platen axle Ill, said pinion having half the number of teeth of the line-space wheel I It.
  • the drive mechanism is similar to and in several' oi its arts is identical with the compensating feed mechanism described in my-prior Patent No. 2,288,828, dated July '7, 1942.
  • the wheel I36 is straddled by a swinging frame or yoke comprising plate-like arms I40 pivoted on the shaft I33, one at each end of the hub I3'I (Fig. 9). These arms are not drawn in Fig. 8, but one of them is shown in Fig. 18.- The outer ends of the arms I40 are rigidly connected together by Posts I and I42 (Figs. 8 and 18).
  • A'shaft I43 passing through the arms I40 serves as a bearing for a pinion I44 meshing with the wheel- I36 and having fast on its hub a detent wheel I45 having twice as many teeth as said pinion.
  • the con struction is such that the wheel I36 may be turned without affecting the yoke I40, or the latter may be rocked about shaft I33 without turning the gear, when the pinion I44 is free to revolve on its shaft; but if the detent wheel I45 be locked against such revolution, the yoke is locked to the wheel I36 and neither can turn about shaft I33 without carrying the other with it.
  • Such locking is efiected on occasion by a dog I46 whose hub is pivoted 'on the post I42 and which carries a diamond shaped stud I4! adapted to-enter the notches in Wheel I45.
  • these notches have half the angular pitch of the gear I44, this look defines half tooth-spaces of the latter and-of gears I36 and I38, which equal whole tooth spaces of the line space wheel I I6.
  • yoke and the pinion I44 are shown in full lines at the end of a forward stroke and in broken lines at the end of a return stroke, and the latter or normal position is shown also in Figs. 4, 5, and 10.
  • a stud I38 on an arm of dog I46 strikes a fixed stop I48 and forces the dog into engagement with the wheel (Fig. 5), where it is caught and locked by a latch I50, pivoted on the post I4I. If new the platen be turned, as by the line space wheel in printing on a form, the wheel I36 will be turned step-by-step counterclockwise in Fig. 8 (clockwise in Fig. carrying the pinion I44 and yoke I40 with it.
  • the yoke If, after printing a few lines, the yoke be actuated in the same direction to the end of its throw, it will carry the wheel I36 with it and impart a long feed to the paper. At the limit of such motion the tail of the latch I50 strikes a post "I5I fast on the fram plate I25, and is thereby rocked out of engagement with the dog I46, freeing the pinion I44, as shown in Fig. 8, so that the yoke makes its return stroke free of the wheel I36. A spring I49 tends to swing the dog I46 out of, and the latch I50 into engageline 6 of the next form, as described hereinbefore.
  • Additional means are provided to lock the dog I46 in engagement with wh'eel I45.
  • 'Two arms I52 (Figs. 8 and 9) and a connecting post I53 constitute a yoke pivoted on the reduced ends of shaft I43.
  • This post normally lies in a notch in the upper edge of the dog I46, but when swung counter-clockwise about axis l43, as presently to be described, it moves over a higher part of said dog, locking the latter down.
  • the feed unit above described constitutes a paper feed operating member.
  • the mechanism includes two such memin Fig. 18, is pivoted on the shaft I33 just outside the outer yoke arm I40, is influenced by a restoring spring I29 (Fig. 10), and on occasion, it is rocked about said shaft by a long power operated link I55.
  • This lever operatessaid yoke, but with relative lost motion, through a stud I56 projecting from the yoke arm-into a notch in the edge
  • a spring I51 stretched between posts on said lever and said yoke arm normally holds the stud I56 against the left hand edge of the notch as viewed in Fig. 8 (the right hand edge in Fig. 10).
  • the lever I54 When a long feed is produced by the upward motion of the link I55, the lever I54 first rocks counter-clockwise in Fig. 8 until the right hand edge of the notch reaches the stud I56, stretching the spring I51, after which the yoke I is swung to feed the paper.
  • the purpose of the lost motion is to operate the locking yoke bar I53.
  • One of the arms I52 is in bellcrank form, and its other branch is connected with the lever I54 by a link I58 which is pivoted to the lever I 54 at 280. This link, during the said lost motion, swings the yoke I52, I53
  • the link I may be made as shown in Fig. 18, with a sliding section 28I connected with piece I50 bypins and slots and a'spring 232, which latter can yield in case the tooth I4'I fails to enter a notch in the wheel I45.
  • the pivot pin 280 passes through one of the slots in link I58.
  • the means for operating the compensating feed mechanisms from a power shaft of the machine is best shown in Fig. 10.
  • the link I55 has in its lower part a longitudinal slot I59 in which plays a pin I60 on an operating angled lever I6I pivoted on a post I62 projecting from the head frame IOI. Said lever is connected by pin and slot I63 with a compound link made up of two 'bars I64 and I66, but which. for the moment,
  • crank disc may be treated as a solid pitman, which is operated by a wrist pin I66 on a crankdisc I61, loose on the forward drive shaft I5 of the machine.
  • Said crank disc is driven by a one-revolution clutch of ordinary construction and comprising a disc I68 fast on the shaft and having a notch I10 adapted to be engaged by a pawl III pivoted on the disc I61 and influenced by a spring I12.
  • the clutch is opened by a shouldered dog I'I3 acting on a tail of the pawlIII, said dog being pivoted on a fixed pivot I14 (Fig. 4) and being on arm of a lever whose other arm "5 is operated by a vertical link I16.
  • the dog "3 is ar- 4 ranged to stop the crank disc I61 in the dead center position shown, where it is yieldingly re tained by a spring-pressed detent I" having a roller engaging a notch in the disc.
  • a momentary upward motion of the link I16 will release the pawl Ill and cause one oscillation of the compensating feed yoke I40.
  • the link I55 measured from the top of the slot I59, is of such length as to swing the yoke I40 to its extreme forward position shown in Fig. 8.
  • the slot enables said yoke to be fed along as the paper is line spaced and also to be arrested on its return stroke at different positions appropriate to different extents of paper feed.
  • the clutch may be tripped by any means aplitiste to the requirements of the work to be done.
  • the link I15 at its upper end lies between two bell-cranks I80 and HM, each loosely pivoted on the total shaft I23 (Figs. 6 and '7).
  • the former (Figs. 12 and 13) has a stud I82 working in a slot in th link, and the latter (Figs. 10 and 11) lies beneath a stud I83 on the link, so that a clockwise rocking of either bell-crank will raise the link and trip the clutch.
  • An arm I94 (Fig. 12) fast on the total shaft I 23 has a stud I85 adapted, when said shaft is rocked clockwise, to rock bell-crank I80 and thus to trip the clutch in order to impart a long feed to the paper after printingla total.
  • Figs. 4 and 10 show the stop position of shaft 15 from which degrees of the cycle are measured. Referring to them and to the time chart, Fig. 17, the type bars are at the tops of their strokes before 160, the typ hammers strike at 162, line spacing occurs at 162-260, and the total shaft I23 is pulled' by 340 of the idle or blank cycle preceding the total cycle.
  • the notch II of the clutch picks up the pawl III and starts the crank disc into motion, at about 160 of one cycle and the rotation of said disc stops at the same point in the next cycle.
  • the machine When the paper is fed to line 6 as justdescribed, the machine prints two or more lines of heading from as many cards, the last one of which has therein a special hole which causes the compensating feed mechanism to feed the paper to line II of the same form, as will now be described.
  • the special hole controls suitable means such, for example, as are described in the Mueller application 316,739 to actuate a Bowden wire I85 which pushes up a link I81 (Figs. 4, l2, and 13) inside the machine. Said link is pivoted to an arm I88 fast on a rock shaft I90 and having another arm I! outside the machine frame and acting, when the wire is actuated, to rock clockwise a three-armed lever I92, pivoted on the post I62.
  • Fig. 5 The means for limiting the return motion of the compensating feed to 5 spaces, is best shown in Fig. 5. See also Fig. 12, where the compensating feed yoke is omitted.
  • a bell-crank made of two relatively adjustable pieces I95 and I91, the latter of which is pivoted at I to the frame plate I25, and rocks said bell-crank clockwise from the position shown in Fig. 12 to that shown in Fig. 5.
  • the other arm I91 of said bell-crank has 2, lug I98 which is caught and held down by a latch pawl 200 pivoted to the plate I25 and moved to latching position by a spring-urged link 251 (Fig-14) whose operation will be described hereinafter.
  • the free end of thearm I91 has a stop piece 20I pivoted thereto at I99 and which in Fig. 5 is in and in Fig. 12 is out of the path of movement of the stud I39 on the tail of the dog I46.
  • a second pawl 203 pivoted to frame plate I25 is normally drawn by a spring 204 against the pivot I99.
  • the stop 20I has a stud 205 connected by a spring 205 with the pawl 203, which spring presses the stud 205 against the edge of said pawl, and also serves as a restoring spring for the bell-crank I95, I91.
  • the yoke I40 When the yoke I40 is swung forward to feed the paper to line 6 of the next form, the stud I 39' in passing the stop 20I, momentarily swings the latter aside against the tension of the spring 206.
  • the yoke returns from the stroke just mentioned the stud I39 strikes and is arrested by said stop 20I, which, however, swings clockwise, and the stud 205swings the pawl 203 counterclockwise until arrested by the lug I 98.
  • the pawl 203 pushes the pawl 200 free of lug I98, allowing the latter to rise until arrested. by the tooth of pawl 203, which is slightly higher than that of pawl 200, so that the latter cannot reengage the lug.
  • the pawl 203 is drawn clockwise by the spring 204, out of engagement with lug I98, whereupon the spring 200 restores the bellcrank I 95, I9'I, to the position of Fig. 12, leaving the yoke free to return to the position of Fig. 10.
  • the yoke advances the balance of 17 spaces from the posisition of Fig. 12, and returns 5 spaces being arrested by stop 20 I. After printing the heading, it advances the balance of 5 spaces and returns 17 spaces.
  • the stop mechanism just described my be disabled in case statements are to be printed without headings.
  • the bell-crank arm I is made so that it can be shortened so as not to be struck by the stud I39, and the stop 20I will, therefore, remain in its inactive position shown in Fig. 12.
  • the arm I9! is made of the T-shape shown in Fig. 14, where the arm I95 has beenremoved. It has two studs 20'! which pass through slots in arm I95, the upper slot having two branches as shown in Fig, 5, and a spring 208 holds the upper pin seated in one or the other of these branches. By manipulation the piece I95 can be moved upward and the lower notch seated on the pin, thus withdrawing the lower end of the arm out of the path of the stud E39.
  • the printing of items may begin at line 6 instead of line 11.
  • the compensating paper feed should, therefore, have an excursion equal to the whole length of a form, that is to say, to 22 spaces instead of 17, as before.
  • the stopl46 is made settable to afford the additional spaces. In the present instance it was found convenient to pivot it on the fixed stud I30, and to connect it to the supporting link I28 to rock with the latter when the auxiliary carriage moves slightly frontward just before and back just after printing-as hereinbefore described. As shown in Figs. 14, 15, and 16, said stop is on the outer end of a hub M0 on the inner end of which is an arm 2
  • the pivot I21 is in the form of a bolt which passes through an arcuate slot in the arm 2
  • a thumb screw 2I2 can be screwed into either of two holes in link I28, retaining stop I48 in the position where its upper end arrests the feed yoke at 17 spaces or where a step 2I3, five spaces lower, arrests it, at 22 spaces. It may be given the.
  • the described mechanism may be used to'make lists from groups of cards where no totals are to be taken. For that use, the last item card of each group may be punched with the special control hole, which will initiate the longer compensating feed stroke the same as a total taking operation. In other words, the end'of an item group may be signified to the apparatuseither by total taking or by a special hol in the last item card, resulting in an operation of the compensating feed.
  • the stop I48, 2I3 may be set for an excursion of 22 spaces
  • the same compensating paper feed operating member (I40, etc.) is used to accomplish two diiferent compensating feeds, said two feeds of different lengths and automatically alternating with each other.
  • said member first feeds the paper from any item line of one form to the first heading line of the next (a comparatively long feed) and then feeds it a shorter distance D from any heading line to the first item line of the second form.
  • the uniform feed (Figs. 4, 9 and 12) feeds the paper automatically from the last item line be swung down into engagement with 9. lug 226 of one form to the first item line of the next form, whether the forms are printed with headings as in Fig. 3 or without headings,
  • This comprises a yoke similar to the yoke I40 already described, and in the drawings its corresponding parts are given the same reference numerals as those of the latter with a I added.
  • the yoke arms I40I are pivoted on the shaft I33 but (Figs. 9 and 19) farther apart so as to straddle those of yoke I40 and its lever I54, Its pinion I44 and quired of this yoke, and its return motion is,
  • Said stop .22I stands in the path of one of the yoke arms I40I instead of the tail of the dog I46I, so that the lock I46I is never applied to the gearing, except when the yoke is operated.
  • Thelever I54I is operated by a long vertical link 2I5, pushed upwardby a pin 2 I 6 on a lever 2 I 1 similar to the lever IBI and pivoted on the same post I62, which lever 2II is rocked by a pitman consisting of two parts 2I8 and 220, from the wrist pin-I66. In Fig. 4, this pitman lies in front of the pitman I64, I65, and hides most of the latter.
  • the feed unit just described constitutes a second paperfeed operating member, which, for convenience, may be referred to as the uniformfeed member.
  • the two feed members may be operated alternatively in various ways. In the present instance they are operated by the same crank I66, I61 and the two pitmans are made alternatively operative, by the following means (compare Figs. 4, 10, and 12).
  • Zhe two bars I64 and I65 have a 'sort of telescopic action. They lie face to face and are connected by headed studs 222 on bar I65 passing through long longitudinal slots 223 in bar I64, so that, when thewrist pin I66 makes its revolution, bar I65 may slide on bar I64, stretching a spring 224, without operating lever I6I.
  • a dog 225, pivoted to an ear of bar I65, may
  • the compound pitman 2I8, 220 is similarly constructed (Fig. 12), but the: dog 225I is on the lower side of bar 2 I6 and its lug 226! on the lower edge of bar 220.
  • the two dogs 225 and 225I are connected together by a link 221 and spring 228, the former pivoted to one dog and having pin and slot connection with the other, so that the two dogs rock about their pivots together, one of them into and other out of active position;
  • the spring 228 is disposed at such an angle that its lever arm on the lower dog 225I is much longer than on the upper dog, so that it normally holds the dogs up, making the pitman 2 I6, 220 normally operative, and the pitman I64, I65 normally inoperative.
  • the dog 225 is latched down temporarily by a latch pawl 230 pivoted at 23I to bar I65 and influenced by a spring 232,
  • the uniform feed device is brought into operation by that step of the line space mechanism which feeds the paper to the last item line of a form (line 20 in the present instance). It will be recalled that when, on its shorter stroke, the compensating feed yoke feeds the paper to line 11 of a form, it is restored to the position of Fig. where the locking dog I46 has been forced by the stop I48 into its locking position and the latch I50 has secured said dog in engagement.
  • the compensating yoke is, therefore, carried along step-by-step toward the front of the machine and its operating link I55 steps upward, the slot I59 moving relative to the pin I60; and when this link reaches the point corresponding-to line 20 on the paper, a lug 233 (Fig. 11) on a bracket 234 adjustably secured at the correct point on said link, trips the clutch I 66, I1! as will now be described.
  • Pivoted on the post IE2 is an upright lever 235 connected by a link 23-6 with the bell-crank I 8
  • a dog 231, pivoted to lever 235 at 238, is swung clockwise by a spring 240 until arrested by a pin 2 on the lever lying in an opening in the dog.
  • a shoulder 242 of said dog is acted on by the lug 233 to rock the lever 235 and trip the clutch at the time referred to above.
  • the lu 233 moves upward guided by the pin I60 and slot I59, and it swings the shoulder 242 upward and frontward out of its path.
  • the dog 231 can swing out of the way about its pivot 238.
  • the pin 246 may lie in a slot in the link 2I5 which link may have pivoted thereto at 244 a piece 243 which can be set in the active position shown or swung aside into an inactive position, being secured in either position by a plungor 245 on the piece 243 entering one or the other of two holes in the link 2I5.
  • the piece 243 is.
  • the operating movements of the yoke; I40 and I40I are rapid, but they are harmonic in character, being stopped gently by the pitman 2 I6, 220 coming to a dead center, and it is found in practice that the parts do not overthrow. It will be noted that the extent of throw imparted to the compensating yoke I40, is regulated by variably limiting the return stroke, whereas that of the uniform feed is regulated by varying the operating stroke.
  • the lower dog 225I has an upstanding arm 241 (Figs. 12 and 13) having a stud 248 standing in front of the third or upstanding arm of the lever I92.
  • Said latch has a stud 250, which, when the ,pitman is operated, describes an orbit I; and a ledge 252, formed off from a fixed bracket 253, and standing in the return lap of said orbit, deflects said stud and releases the latch, and allows the dogs 225 and 225 I to return to their normal setting.
  • Said latch 2W (Figs. 12 and 14) has a depending arm to which is pivoted a horizontal link 25l having a slot 258 in its front end.
  • a pin 260 projects from said link through a hole in the frame plate I25 where it is connected to a spring which controls the link and the latch 200.
  • a pin 25! (Fig. 12) on the yoke Mill runs in the slot 258, and acts, when said yoke is operated, to pull on the link 25? and release the latch, so that the compensating feed yoke will return to its longer feed position.
  • the uniform feed operates only when, in the course of printing items, the paper reaches the last line, At this time the compensating feed yoke is locked to and is traveling with the large gear I36, and it has already completed 10 of the 1'7 spaces of its travel. Its
  • latch I50 strikes and is arrested by the fixed stop II (Fig, 8) at line 6 of the next form, releasing the yoke from the wheel in the midst of the uniform feed, which extends to line 11.
  • the yoke M5 when so released, might jump back to its return position against stop 2M and become relocked to the wheel before the uniform feed was completed.
  • a spring-controlled latch lever 255 (Fig. 14) pivoted at 255 to the frame plate I26, has a tooth 256 in position to engage the prolonged inner end of the post IM of the compensating yoke when the latter is near its extreme advanced position, and to prevent the return motion of said yoke. Said latch is normally held up out of the path of said post, however, (Fig.
  • the pin 2"; on the lever 2II normally occupies a horizontal off-set in a long vertical slot 265 in said link, forming a shoulder against which said pin acts to operate the link.
  • the designation shaft L22 . is rocked as above described, the stud 2B5 swings the link rearward so that,
  • a simple means for this purpose is best shown in Figs. 9 and 10.
  • a plunger 210 of ordinary construction is mounted on the outer supporting arm I3I and it has a finger button by which it can be retracted or advanced to enter an opening 2II in the plate lever I54 to limit the return motion of said lever. The effect will depend on the dimensions of said opening. In Fig. 10 this opening is. shown of such dimensions as to-hold the lever at or near the extreme of its forward throw, which would disable the compensating feed altogether.
  • the opening 2'" is of the dimensions shown in broken lines in Fig. 8, i. e., such that the plunger 210 arrests the lever I54 after, say, 6 line spaces of return motion, then the yoke I40 and its adjuncts will be converted into a uniform'feed, because the dog I46 yoke.
  • the compensating feed is compensating" only because, on the return stroke of the yoke I40, the locking lever I46 is locked down by the latch I50, and that the other feed is funiform only because its lever 6
  • the feed yoke M can readily be made compensating if the work to be done makes that desirable.
  • any suitable means may be provided.
  • the stud 212 projectin from the end of the arm I75 passes through a round hole in a bar 213 and thence through a slot in the link "6.
  • Said bar is slidably mounted on said link by said stud and by a second headed stud 2H riveted in said bar and playing in a slot in the link. Relative motion of said link and bar is prevented by a plunger 215 mounted in the bar 213 and adapted either to enter a hole in the link, orto be Withdrawn therefrom, after a familiar fashion.
  • a paper feed operating member having an advance movement to feed the paper and a measure return movement preparatory to a long feed of the paper, and a stop settable to restrict the return movement preparatory to a shorter feed, of means operated by said member on one stroke thereof to set said stop in restricting position and means operated by said member on the next stroke thereof to set said stop in non-restricting position, whereby the successive strokes of said member are caused to be of alternating longer and shorter extents.
  • mechanism for feeding a web of paper comprising a paper feed roller,,line space mechanism, a drive wheel geared to the paper feed roller, and two oscillatory yokeslpivoted coaxially with said wheel, the combination of means to lock one only of said yokes to said wheel at the end of its return stroke thus constituting said one yoke a compensating feed member, means to lock the second said yoke to said wheel on an operating stroke of said second yoke, and means to impart long strokes to one or the other of said yokes selectively.
  • a printing machine and in mechanism for feeding a web of paper divided into forms, each having a space in which to print headings and a space in which to print items said mechanism comprising a compensating paper feed operating means and a uniform paper feed operating means to feed the paper from the last line of one form to the first item line of the next, means for imparting to said compensating means advance and return strokes, means operated by said com- 16 line, means to initiate an operation of said uniform means, and means controlled by said uniform means to disable-said limiting means.
  • mechanism for feeding a web of paper divided into forms and comprising a long paper feed operating member having operating strokes and return strokes, means to advance said memher when the paper is fed by other means, a uniform paper feed operating member, and means operated by said advancing means to bring said uniform feed member into operation at the bottom of a form the combination of a latching means brought into operation by the uniform feed operating member upon its advance movement to delay the return stroke of said long paper feed operating member, said latching means being rendered ineffective by said uniform feed operating member upon the return stroke thereof to.
  • a machine of the class described and inmeans for feeding record forms each to a heading line and to the first item line of a form and comprising a paper feed operating member having an advance movement to feed the paper and a measured return movement preparatory to a long feed of the paper and a second paper feed operating member to skip the heading on said form
  • a stop settable to restrict the return movement of the first said member preparatory to a, shorter feed means operated by the first said member on the longer stroke thereof to set said stop to active position, means operated by the first said member on the shorter stroke thereof to reset said stop to inactive position, and means controlled by said second member to reset said stop and thus to interrupt the W alternation of long and short strokes of the first pensating means to limit every other return stroke member.
  • a line space device to feed the paper line by line
  • a'paper feed operating member having an advance movement to feed the paper through several line spaces and a measured return movement preparatory to a long feed of the paper
  • means to cause said member to move in advance direction as the paper is fed line by line a stop settable to restrict the return movement of said member preparatory to a shorter feed

Landscapes

  • Handling Of Cut Paper (AREA)
  • Handling Of Sheets (AREA)
US458909A 1942-09-18 1942-09-18 Paper feed mechanism Expired - Lifetime US2426944A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL74832D NL74832C (en(2012)) 1942-09-18
US458909A US2426944A (en) 1942-09-18 1942-09-18 Paper feed mechanism
GB15306/43A GB568956A (en) 1942-09-18 1943-09-17 Improvements in paper feeding mechanism for statistical, accounting and like machines
FR938158D FR938158A (fr) 1942-09-18 1946-01-17 Mécanisme d'avancement du papier pour machines à imprimer de bureau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US458909A US2426944A (en) 1942-09-18 1942-09-18 Paper feed mechanism

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US2426944A true US2426944A (en) 1947-09-02

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US458909A Expired - Lifetime US2426944A (en) 1942-09-18 1942-09-18 Paper feed mechanism

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FR (1) FR938158A (en(2012))
GB (1) GB568956A (en(2012))
NL (1) NL74832C (en(2012))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543919A (en) * 1946-05-21 1951-03-06 Moore Business Forms Inc Feeding mechanism for writing machines
US2564580A (en) * 1948-01-23 1951-08-14 Remington Rand Inc Paper feed mechanism
US2611371A (en) * 1947-02-15 1952-09-23 Int Cigar Mach Co Gate mechanism for cigar bunch machines

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056393A (en) * 1935-11-05 1936-10-06 Ibm Paper feeding device for printing machines
US2059215A (en) * 1934-08-22 1936-11-03 Remington Rand Inc Paper feed mechanism
US2059251A (en) * 1929-06-17 1936-11-03 Remington Rand Inc Printing and paper feeding mechanism for adding machines or the like
US2141269A (en) * 1938-12-27 Control mechanism for calculating machines
US2156990A (en) * 1934-10-30 1939-05-02 Ibm Paper spacing mechanism for printing machines
US2189025A (en) * 1935-01-01 1940-02-06 Ibm Paper feeding device
GB522562A (en) * 1937-11-13 1940-06-20 Remington Rand Inc Improvements in statistical machines
US2256693A (en) * 1936-10-10 1941-09-23 Powers Accounting Machines Ltd Paper feeding mechanism for statistical machines
US2288828A (en) * 1940-03-09 1942-07-07 Remington Rand Inc Tabulating machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2141269A (en) * 1938-12-27 Control mechanism for calculating machines
US2059251A (en) * 1929-06-17 1936-11-03 Remington Rand Inc Printing and paper feeding mechanism for adding machines or the like
US2059215A (en) * 1934-08-22 1936-11-03 Remington Rand Inc Paper feed mechanism
US2156990A (en) * 1934-10-30 1939-05-02 Ibm Paper spacing mechanism for printing machines
US2189025A (en) * 1935-01-01 1940-02-06 Ibm Paper feeding device
US2056393A (en) * 1935-11-05 1936-10-06 Ibm Paper feeding device for printing machines
US2256693A (en) * 1936-10-10 1941-09-23 Powers Accounting Machines Ltd Paper feeding mechanism for statistical machines
GB522562A (en) * 1937-11-13 1940-06-20 Remington Rand Inc Improvements in statistical machines
US2288828A (en) * 1940-03-09 1942-07-07 Remington Rand Inc Tabulating machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543919A (en) * 1946-05-21 1951-03-06 Moore Business Forms Inc Feeding mechanism for writing machines
US2611371A (en) * 1947-02-15 1952-09-23 Int Cigar Mach Co Gate mechanism for cigar bunch machines
US2564580A (en) * 1948-01-23 1951-08-14 Remington Rand Inc Paper feed mechanism

Also Published As

Publication number Publication date
NL74832C (en(2012))
GB568956A (en) 1945-04-27
FR938158A (fr) 1948-09-07

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