US1625343A - Paper-winding mechanism - Google Patents

Description

April 19', 1927.-

`A. N. VANl NOSTRAND 'PAPER wrNDING MBcHANIsM Filed Jan. 21. 1926 Patented Apr.. 19, i927.

Ultii'i a serena aries.

ARLEIGH N. VAN NGSTRAND, OF FLUSHNG, NEVI YORK, ASSIGNOR T0 TELAUTO- GRAPH COBORATON, OE NET? YGR, N. Y., fr GREORATON OE VRGINIA.

PA'PER-'W'INDING 'IECI-IANISIVI.

Application area January 21, 192s. serial No. 82,671.

rlfhig invention relates to improvements in paper winding mecaanisln and particularly to spring-actuated p:ipei-wi1idei's .such as are used in telautop'raph receivers.

The object ot" the invention is to provide a construction by which all danger'ot injury to the spring and gearing' will be avoided and by which a sudden release of the spring'. when removing` the paper-winding drum, will be rendered impossible.

With this general object in view and some others which will be clear from the description hereinafter, the invention consists in the "features, details ot' construction and combination or' parts Vwhich will tirst be described in connection with the accompanyingl dra-wines and then more jmrticulary pointed ont.

In the drawings Figure l is a front elevation or a paper winding?T mechanism embodying' the invention;

Figure 2, an end elevation or the same;

Figure 3, a view of the spring' barrel with its head removed;

Figure 4, a central sectional view, partly in elevation. of the spring` barrel, spring and ratchet device, with a portion Ot the winding` shaft in elevation; and

Figures 5, (i and 7 are detail views illustrating' the brake device.

Referring to rthe drawings, the paper winding` reel is indicated generally at A. lt comprises a roller l through whose axis passes a spindle 2 on which the roller l is fitted tightly. The spindle 2 projects at each end beyond the ends or the roller, one end of the spindle beine'made conical, as indicated at 2a. rhe other end ot' the spindle is toothed to form a pinion 2b, beyond which the spindle is reduced in diameter to Yform a collar-portion indicated at 2c and beyond this collar-portion the spindle is further reduced in diameter to form a bearing portion 2d.

To each end of the roller 1 is detachably secured a guide disk, these disks being' indicated at 3. Each disk is made of sheet metal and has a central openingthrough whichr lVhen the disk is to be put in place, the spindle 2 is passed. through the central hole of the disk and the latter thenv .slid down on the spindle and brought into a position where the large openings or' the key-hole slots are in lin-e with the screws, thereby' allowingthe screw heads t-o pass through said openings.A By then rotatingthe disk on the spindle, the screws are received in the narrow slot portions ot the key-hole slots, the screw heads engaging the metal oil' the disk at each side of said slots, thereby holding the disk to the roller. There is sm'iicient friction between the under sides of the screw heads and the outer face or' the disk to prevent the disk from jarring loose in ordinary operation. in order to remove a disk it is only necessary to give it a. slight 'angular movement with relation to the roller to free the screws from the narrow slots and bring them into the circular openings of the key hole slots, whereupon the disk may be withdrawn. ln this way, the roll of paper wound upon the roller may be freed so that it may be slid o the roller. F or the purpose of holding the end of a paper-web the roller is provided with a paper gripping device, such as is indicated at 5. This is a plate secured to the roller, as for example, by screws indicated .at 6, the plate having' its free margin raised slightly from the roller periphery so that the end ot a web of paper may be slid beneath the said plate.

rihepaper winding' reel is arranged to be rotatably'mounted in a suitable framework which also supports the spring` motor device which is intended to rotate the drum. n the present example',r the framework is indicated generally at-B. tcomprisesabase portion 7, arranged to be secured to the trame of the telautograjiih receiver, and two standards 8 and 9 each having a projecting arm, as indicated at lO and 1l respectively.

The arm l() has a center bearing arranged to support the conical end 2a of the spindle 2. In the present construction this bearing is adjustable and comprises a trunnion screw l2 slotted at its outer end and pro-vids ed with a conical recess at its inner end. The trunnion screw l2 passes through a screw-k threaded hole in the arm 10 and may be locked at any position to which it is adjusted by means of ay nut 13.

The arm ll has a bearing arranged to refil) eeive they hearing porlion 21d olf ille spindle il. This hearing is an open slot, sloping doirir iard and inward il"i'oni irs open endI` shown al1 1l. Fig. When llie spindle is in place in ils hea rings` ils conical end is i'o- 'atalile in the conical recess in The triinnion Seifen' l2 and lhe hearing portion 2d is rotaialile in lhe holloni oil" llie, slol` ll. ln this position ll'ie. oiil'er Vlaee ol llie collar-poriion il runs in eonlart ii'il'h llie inner lare olE the arni All, so llialA endwise inovenieiilI ol' lilie spindle is prevenlieifl. 3v pulling l'lie spindle i2 ont ol llie slot` lil. ils collar-porl'ion il is Jfreed lfroni the arin and lilien lihe eoned end 2b el the. spindle mayv he Withdrawn ,liroin l'lie conical hearing' in llie lrnnnion sei-ew lf2', lllins freeing' the spindle and ils attached roller :lroiii lihe lraiiien'ork.

The arn'i ll is arranged lo snpporly a spring inol'or device arranged lo drive the spindle Q- and ils roller. vThis spring' niol'or doviee comprises a spring' liarrel l5 hav* inn' a K@rear wheel. lll al' one end and :i head i7 at the other end. The liai'rel, inelnding ils head 17 and `rear wheel lll, is i'olalal'iljv nionnl'ed on a drnni shall; 1S n'hirh exlends through a hole or hearing' Vl'ornied in a lioss ill) earried hv llie slandard Si olf the frame Work. The drinn shalt has a collar 2.0 arranged inside l'he standard 9 and a n'aslie'r 2l oiil'side the. boss l0. The drinn shall'. ,lo has ills inner end reduced in dianieler where it pas-ses through the head 1T o'l lhe, spring' barrel? ivlierehif' a. shoulder is foi'nied near said end of lhe sha fl'` against: n'hieli the head reels, A iasliei' plai-ed on lihis redneed end, oul'side lhe head, and the exlzreiiie end ol l'he drinn shall is riveled lo preveni'y ils renioval vlroni the hai'rel. lli'lil'liin llie barrel and near llie head li" llie drinn slia'l'l 1S provided with a transverse pin S213, one end ol which projects a shorl' distance radiall)v 'lroni l'lie. spindle. @n lhe spindle is loosely inonnl'ed a drinn raleliel' 2l, eoniprisingr a sleeve` rol'alahle and slidalfile longilndinallv on rhe spindlej lhe li'ansvei'se lare oil' rlie sleeve iiearesl'` l'lie pin E225 lining pi'o vided Willi a ral'eliel` notch arranged to eoael: with l'lie pin 22. The other end olI lhe drinn ral'eliel` 2A- has a eoinilerhored portion ivitli in which rhere is placed a lielieal spring' Wliieli tends lo force lllie drnni-ral'eliel yielding'lyY roivard the pin Q3, this helieal spring' reacting' against llie near wheel lli. 'llo this drinn ralelie'lil QLL is i'ivel'ed the inner end of a spiral spring 2o of lhe nsnal eloelvspring type. The outer end of this spiral springe' Ql is riveled lo a resilienl friction hand 2T, inost advanlageouslv made ol phosphor-ln'onze, which loand eonl'aels ivilili l'lie .inner periphery ol the spring' barrel l5 the expansive poii'er oil'I lhis lirierion hand heine' siillieienl lo maintain a goed friel'ional hold ol ihe hand on lille interior periiiliery ol. the spring' barrel, so that the power of the spring iii infamia ii.n\viin lin iii-ary lie lransinilited lo lihe barrel, n'hil-e il' llie saine linie orern'iiiding ol llie spring' 2li will lie prevented heeanse as the spring' is `wound its exleriial dianieler is redneed and llie end ol l'lie lrieliion hand 2T, riveted lo lhe onler end oil' said spring 2o,

is dra wn inn'ai'd an'av :ironi l'lie inner pe riphery oll (he springl liarrel, llins gradually reilneiiigiv [he l'i'ielioiial. conlaelv lieln'eeii llie `lrielion hand and spring barrel and even lnalllY allowing llie spriiip; 2li lo slip around .rilliin llie liai'i'el lo a snl'lieienlt exlienlv lio ailloii' lie spring' lo unwind slightly and tlieroh v reinrn ilie ilrielioii hand into grippii'ig' eonlaet with llie liai'rel.

For' llie purpose ol winding lho spiral spring ilo, the drinn shalt 18 has ils outer end provided 'willi a hand crank :28 seenred lo llie spindle in an)Y siiilahle iva'y, as' 'loi' example, h v a lraiisrerse pin 2l). The inner lare of lhe crank huh has :i series oli ratchet nolelies arranged lo he engaged hy a spring pressed pin 3l) niounled slidahly in a hole in llie hess il) and pressed onlnvard yieldingly liv a lielieal spring' 30 lVlien i'ihe hand crank is lnrned, llie drniii shall' lo is i'oalied, and the raleliet loolh of l'lie drinn ralehel' '2l iril'hin l'he spring' liarrel is engaged hy the pin 23 so liliar lille said drinn raliehel is lnrned irilli the drnni shalt '18. Dining lhis operation ol l-he hand crank lhe gear wheel 1li and spring liarrel l5 is held stationary as hereinaller described, so tliali l'lie spiral spring 2li will he ivonnd up, il heine' iini'iossihle to orerii'iiid l'ilie spring', lieeanse as llial'` eondilion is approiielied` the 'lii'ielion hand 2T slips ai'ound and allows the onler end o'lI llie spring' 26 lo slip relative lo lhe spring' liai'rel. ',lllie drinn rarelielx l and pin Bil serve lo prevent injury to the spring i'l ali anniY linie llie reel allowed to rare so llial` lln` iiionieiil'nni oil3 lhe reel eari'ies il'y liehvond llie poiiil; ivlieife llie spring' is entirelyY nniroinid, Al' this poinlV llie teiidener ol lllie reel would he lio pnt an exeessire sli'aiii, on llie end oli the spring' where il'` is allzu-,hed lo llie drinn ral'eliell, were it noi` Vfor the fart lhal' llie latter will lio rotated in a direelion lo free it Yl"ro1ii llie pin. 25 and llins` allow it lo rol'ale li'eelr on lhe shall'. As soon as lhe sin'ing nioltor wound` the hand eraiili i255 and di'nni shall' lll ai'e held against liaeliward relation h3' lvhe springpressed pin 3l) engaging' l'lie raleliel; leelli ol lihe rrank huh. The spring' niotoi.' is non' read)Y to drive the paper reel lo irind up l'lie papi-r ilroin Jrlie lelaiil'ograph receiver.

In order lo hold the spring liarrel durin,Y llie winding' operation, lihe operator may hold lhe reel or l'lie spring' harrel willi one hand irliile turning' l'lie hand crank `willi the other hand. Or. ilf desired. the hi'ale derire hereinafter deserihed may he applied lo hold the spring liarrel.

ln order lo retain the spindle 2 in the open till gif,

lll)

l Uli slot 14 of the arm 11, a suitable retaining means is provided,'and this is so combined with a `brake device `arranged to prevent the rotation of the spring barrel that, when the retaining meansis operated to release the spindle 2, the brake will first be applied to the spring barrel to prevent it rotating under the action of the spring. Then said retaining means is operated to bring it to a position where it will retain or lock the spindle 2 in the open slot 14, the brake will be released, but not until the spindle is locked.

lVhile the invention is not limited to the speeilic mechanism employed for accomplishing the two functions simultaneously, inthe preferred embodiment of the invention the construction is as follows:

A spring plate 31, provided with a hole through which the drinn shaft 18 may pass, is mounted on said shaft between the gearwheel 16 vand the collar 20. This spring plate is bowed so that its central portion is convex toward the side of the gear wheel 1G. The front end of the spring plate 31 carries a hook portion indicated at 32 arranged to hook over the collar-portion 2 of the spindle and thereby prevent the removal of the spindle from the slot. For convenience in operating, a thumb-piece 33 is provided, this in the present example being made integral with the hook portion. In the best embodiment of the invention, the hook portion 32 and the thumb-piece 33 are cut or stamped from a piece of sheet metal, the thumb-piece being twisted into the position shown in the drawings. This piece of sheet metal is then riveted to the end of the spring plate 31. The` spring-plate also hastwo cam devices 34 and 35, the latter consisting of a. plate beveled off at one end, and the former being a sloped portion of the hook portion 32. These cam devices are suitably secured to the spring plate 31 on that side of the plate which faces the `standard 9. These cam de- 'vices are arranged with their beveled ends pointing in opposite directions, the one (31) nearest the lioolnportion 32 being arranged with its beveled end pointing upward, and the other one ('35) having its beveled end pointing downward. Two screws, indicated at 3G, are screwed through the standard E) and its arm 11, respectively. their ends projecting' into the path of movement of the cam devices 341 and 85 so that, as the spring plate 31 is swung angularly about the drum shaft 18, by use of the thumb-piece 33, the

- cam devices 3st. and 35 will ride against the ends of the respective screws 36 and thereby the spring plate 31 will be pressed against the side of the gear wheel 16, thus applying so much friction to said gear wheel that the spring 2G will be unable to turn it.

The cam devices 311- and 35 not only have the beveled ends, but also have flat portions,

as will be clear from the drawings, so that when the cam devices have been moved far enough for thevtlat portions to contact with the ends of the screws 36. there will be no tendency for the spring plate 31 to swing back, but on the contrary it will be'rctained in its braking position.

The screws 3o, of course, can be adjusted in `or ont -to determine the braking force applied to the side of the gear wheel 16. To lock tliescrews 36 in any position to which they may be adjusted, suitable lock nuts 37 are provided.

It will be seen that when a reel is to be removed, it is only necessary to lift up on the thumb-'piece 33, thereby giving an angular movementto the spring plate 31, which swings about the drum shaft 1S as an axis. During the tirst part of this movement the beveled portions of the cam devices 34. and 35 ride over the ends of the screws 23o, and thereby `the spring plate is tensioned and pressed against the side of gear wheel 36. rlhis prevents the spring 26 from suddenly unwinding, as it would if there were no braking' means, unless lthe spring barrel or gear wheel were held b v hand. During the latter part of the angular movement of the spring plate 31. the fiat portions of the cani devices ride over the ends of the screws 36, so that when the thumb-piece is released the spring plate will stayin its braking position until force is applied to return it to its original position.

As soon as the braking device has moved sufficiently to apply enough friction to hold the spring barrel, the hooked portion l2 then releases the spindle 2, so that the latter may be withdrawn from the open slot and may then be pulled endwise to release its conical end 2L from the trunnion screw 12. The desired end disk 3 may then be given an angular' or rotary movement relative to the roller 1, to unlock the said disk. The roll of paper which is on the roller may then be slid olf the latter. By replacing the disk and replacingthe reel in its bearings, the locking and brake device may be swung angular-ly to bring the hook portion 32 down over the collar-portion 2c of the spindle 2. rllhis locks the spindle in open slot 1&1- and also releases the brake.

The spring 26 may be wound up by turning the hand crank 28. This may be done, either while the brake is on, that is before swinging the thumb-piece 33 down to hook the hook-portion over the spindle 2, or afterwards. In the latter case, it is necessary to keep one hand on the reel or spring barrel to prevent rotation of the reel while the hand crank is being turned. l

Before releasing the brake and locking the spindle 2 in place, the end of the web of paper coming from the telautograph receiver is bent over and hooked under the 'lll ellfge oi lln paporpripping deriva Il :unl lho roller l is `given one or lwo lurns lo Wind up Aome olf llio paper. 7`fllhen lhe spring haaI been nonnll anel lho brake relezwell, lho aprinn molor :1l-ls on lho reel lo maintain a lenaion on llie papeil weh. frs lhe lall'er is pullell along' hy lho paper shiller, aS is uns lomanv in l'llanlogl'raph rofeivinel appar-alas, lhe reel. umler l'lie aelion olf the spring; inolor, n'inlla1 up lha paper l'od llo l'he reel hy llu paper-Shi'l'ler. The lal'l'er mayy he of any (lesirell ljvpa, a parlirnl:n'l \F L,nilahle, forni living shown aml llesrrihel in my appliealion` Serial No. fillli, lilell alf-aj( 2li, 1925.

l. in a paper-nimler` l'he combination, willi a reel and a spindle provided willi a pinion. a springpmol'or haringA a gear Wheel arranged lo engage Said piniom whereby lho :spindle ainl reel are llriren hy lllio lprinnl molar. a support in which llur Ispiinlle remo ahhv jonrnalell. aml manually operalilo means lor locking l aill spindle agrainal` removal `from ils journals. of a braking- (loriee arranged lo he ln'oue'lil; inlo :il-lion lo hold lha Spring-mol'or iuoperal'ive when lhe lockingr means nnloclleil lo release llio spindle. anlfl lo `lfree lh@ spring motor after lzho locking;4 means is locked lo reliain l'he sliidle.

2. ln, a papenwinrler, lhe eoinhination, willi a reel aml a spinlllo provided wilh a pinion, oil a ilpringdnolor lawine a gear wheel arranged lo engage said pinion7 nliereli)Y flu` Spindle and reelv are driven hy lli api.'in;:molor a Support: in which tho spindle is removalillv ionrnaledN niannally operihle 1n ans lor looking; l@aifl apimllo aggainaliremoval lirom ila` journals, and a, lralinY llevire eonneelell willi saill locking' meana :unl arranged lo liolll lho spring;A molar inoperalire when lhe lockingl means iS unloelel'l lo releaaa lha Spindli, and to lruo lille. Spring inolor when llio locking,r moanaA is loeliell lo relain (he spindle.

il. ln a paper-winller, llie romhinalion, willi a real ainl Aapimlln lnfovitlell willi a pinioin ol a spring-millor having; a gear nlnel arrangfell lo (lrive lno pinion. aairl springanolor comprising :1 spring barrel, ar kapiral Spring' williin llio harreh a n'imlinlnY .ahall lior nirnling lln` aprilia'.` aA ralehel', llefire hnlneen lh(` inner nnr'l ol" lha spring; anll llie winding; lial'l. anal a reailienl` :lrirlion hanll (tonneelell lo llle ouler onll oil.z lxllo spring' and arranneil lo react againsl lhe inner :furiare olf lha spring; barrel.

In leslimonr nlierool, l have hereunlo set my hanfl.

RLEIGI N. MXN NOSTRAND.

lilr

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