US1783008A - Ticker-tape control - Google Patents

Description

Nov. 25, 1930. v J, H, CHm TE-R 1,783,008

TICKER TAPE CONTROL Filed July 23, 1927 In tape'feed Where anjenl-arged imageof theltape iisgproj ected 'upon a; screen-sum :for example as the;

projection; of thetape ozfa ticker machine fol-L flnews andstockquotations, it is essential that? lQQ s i e t. ingsmovementvso.athat itcan he;easi1yand the ;image move without jerking, or" waver;

quickly; reach;,LIn Qpro'j-ectiofl apparatus '1- heretofore in (use the feed; of themtape ,duelto ",Vide anj' imprlovedi control eon i'ta-pe :..}eeding;'

it "will hays a luniform unwavering; moves:

1 f therihtermittent stQppingiand-starting of the;

tioker iS;irregulanandu subject to side to, side :W l as; end to; eI'ld vibrationiwhiehmakes itvery diflicult and tiring ito{'read th e c har+ acters and qiiotationsuponthetape i the present ll'llVQIltlOIluthQ v f oregoingtl objectionable operation and; disadvantagefhas been 1 overcome and ;;therefore 'someuo'f then olnects of; the, ipresent'iinyention are toriproimechanisms; to; provide means; for prevent;- w

ing vibration of aaticker tapejduringfitswfeedt L jlngmovelnent atofprovlde means ,for'ipassing g afltapeacross the path of: a projection .app'a- 3-1 ratus, so that While exposed to i such app aratus 3 ment'; to provide an adjustable .control i'or sag-tape whereby its feed can-beregii'latedac p c cording to requirements anddifierent taper l materials'fito {providesmum s: feed scone-01 Which-allows easy access to the tape Whenever necessary; to provide a tape feed control Wl11ClI-IfGIIIL1I1S operative in: case the auto matic tape inding mechanism becomes in operatlve and to provlde-other ll'l'lPIOYQ- if V20;

i i so Q bodying one form ofthe presentinventiong -Fig.2= represents the same iththecontrol. members intape receiving position; Fig.3

mrepresentsasection on line 3 3 of Fig. 1; 'lFigL' 4 represents a section on line H of Fig. 2;andFig. 5 represents'aside elevation ingmechanisms; s i a Referring to the drawings, one form of the ments as will hereinafter appear. W -wQjIn the accompanying drawings Fig 1 represents a plan of a tape feed control emof thedevice and associatedtickerfand WindQ r a lflsent: invention relates tojtape teed x ll gfde VlCfiS and mor PQIIHCHltIIlyPOiQ' control a mn lcker ta for ensuringLkuniivarering 192 7. sen in 208,035! a.

Present inrentimnconsists iot a pla 'te otherisupporting geleinent having Cal trans- Ll versely disposedkgroove" 11 1 to receiveland guide a ticker tape 12 or other movable tape having characters, 'informatilve data; or: any;

designed to snuglyfaccoinmodate the width of the tape so: that thedatter is heldagainst side movement relative to? the 1 plate .010 but allow? tapelQrelativtotheyplate. t In the form of the invention here illustrated by} way/ tor example the bottomgof the groove 11 isformed with a slot l3 iof length tolexpose a suite-s ingfree enclwise travel in onedirection of the r Y ble length of the tape to the light! rays of 1 a1 thevtapeto glve an image iofthe tape uponba g screen or other, surface; gj Suchs slot 513, hOwr y ever, is not a Epart :of they present invention; with?) tape guide and-its adjuncts operate justthe same when the groove 11 has-aisolid I bottoinfinWhichcasethetape canlbe'reflectecl 1 b Ythdfaidolf mirrors tothe screenor pointof f 0" servation.

For the; purpose if N andiirregularitiesinithe feledgo fthe tape from 3 being apparent? in {that part} of. the tape {passing- 1 through the. groove ll', two control strips; 14 and 115 Tare pivotedor *hinged re- 1 projecting}apparatus in prderjto illuminate-i spectively at opposite sides of'the grooflv i 11 i and; parallel, ,Tthereto; I each, being 1 provided Withda friction uflange 16, extending Length" 1 r fl eof and seating on thebottomiofthe V g fivell infliclose 'proximity respectivelygtoi t elgroove sidelwallsfl7 flvhen the ta f lg s is positioned in'the grooye it? i ipr tgd end; toiend 'sl-ipjs prevented hy the frictiong" 5i: 1

pressure of the flangesfilfi which rest t on "the .edgesof the tape =bifitjdoqrrot interfere with} g V thei desiredfeeding of: the tape under the T action of the! ticker i andlwind Off mecha nijsm -20; I This; frictional holding-of the taper 12],at it side edges@ is s preferably augmented by} ,pairqofi fingers 21 extending from. the 1 7 Strip "-14 ;and fterminating, oyerg the i; "medial lineof the tape}inxjpresserifeet 22; which are so proporti other printed orywritten matter ito be read s therefrom Theguide roove llshas aiWidth the surface of the tape. Thus there is an even pressure exerted upon the tape at both side edges and at the middle thereof with the desired result that the tape moves steadily and is not subject to the jerking motions for ward and backward or side to side which are ordinarily caused by the variations in the feed due to stopping and starting of the ticker feeding mechanism.

In order to adjust and vary the pressure of the gravity-held strips 14 and 15 each is provided with a thumb screw 23 which passes through its strip to bear against the top of the plate 10. By turning these screws 23 in one direction the flanges 16 and feet 22 are moved away from the bottom of the groove 11 to diminish the holding pressure, and by turning them in the opposite direction the flange 16 and feet 22 are brought nearer to the bottom of the groove 11 and hence increase the holding pressure.

In the operation of the feed control device, the strips 14 and 15 are lifted to the position shown in Fig. 4, or entirely thrown back if desired, the tape 12 is then placed in position in the groove 11 and the strips 14; and 15 swing down to the operating position of Fig. 3 with the flanges 16 resting on the sides of the tape while the feet 22 rest at two middle portions of the tape. Vith the parts so arranged the friction of the strips 14 and 15 is tested by drawing the tape through its guide groove 11 and the thumb screws 23 are adjusted to provide the desired resistance to i the movement of the tape. This test can be done by actually running the ticker 18 and the wind-on spool 20 or by hand pulling of the tape, but once the proper adjustment is made the screws 23 are left in adjusted position and the device thereafter performs its function in the desired manner. Thus while the tape leaving the ticker has a step-by-step feed or an intermittent movement which tends to vibrate the tape both endwise and crosswise, that portion of the tape which is frictionally held in the groove 11 cannot respond to these vibration producing variations of feed and consequently this portion feed need not be put out of commission, as

happens in other types of tape control devices, but by slightly lessening the pressure of the screws 23 and breaking the tape between the wind-on mecha-nismand the control device, the tape can continue feedingwithout interruption in the ticker service.

It will now be apparent that a complete unitary tape feed control device has been devised wherein provision is made for the innrsaooe termittent feed of a ticker tape without producing vibration or sudden jerking movements to that portion of the tape which is under observation, or exposed for projection in magnified form upon a screen, or reflected in a mirror to a point remote from the tape and its associated parts. n

Having-thus described my invention, I

. claim:

2. A tape feed control comprising a memher having a groove therein to receive at'al'je for endwise sliding movement, two strips lnnged'to said member at opposlte sides respectively, of said groove, a flange oneach strip arranged to hold said tape to the bottom of said groove to prevent vibration of said tape while travelling through said groove, a finger projecting from one of said strips and terminating above the middle portion of said strip, and a foot on said finger pressing upon said tape.

3. A tape feed 'controlcomprising a-memher having a groove therein to receive a tape for endwise sliding movement, two strips hinged to said member at opposite sides respectively, of said grooves, a flange on each strip arranged to hold said tape to the bottom of said groove to prevent vibration of said tape while travelling through said groove, a pair of fingers projecting from one of said strips and terminating above the middle portion of said strip, and feet respectively on said fingers pressing upon said tape.

Signed at Chatham, county of Morris, Stage of New Jersey, this 12th day of July, 192

JOHN HARTFORD CHIDESTER.

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