US1877440A - Double film winding reel - Google Patents

Description

Sept. 13, 1932. Av ADATTE 1,877,440

'- DOUBLE FILM WINDING REEL Filed OCT'. 28, 1927 i Snowdon awoanm Patented Sept. 1.3, 1932 i Exciieiiee erA werden 'efeeefaaeiisnei @mennen WINDING luier@ Apprieation med o'qber as, 192?.` seiai'nq. 229,299.

.The present invention relates to winding reels and more particularly to a. device for winding motion picture lilmsor similar tape.-

' like members." f "5* While the invention is .particularly adapte ed to` reels employed in .connectionwith machines for printing a number of films simultaneously, it `will be 'obvious that appli'-v cation may be eXtendedfto any, device in 10 which it is desired to wind a plurality of tape-like members on a single shaft at substantially thesame speed. f

It has been found that it isfdilicult `to wind two rolls of lil-m, tape vor the like, simull15 taneously on the same reel at the .samespeed,

since, due to imperfections and; varying thicknesses in the mater-iavlfwhich is being wound, one of the rollsltends ltoybecome tight or slack with respect to the .otheryvand dili- '20 culties arise such as breakage ofthe fil-m or the like fronrtoo'great tension applied.r The present invention overcomes these difficulties by providing a plurality of bobbing onl the same shaft and driving Jthese bobbins by friction 4at the saine speed thereby allowing rela- 4tive slippage to compensate'v f Orthe imperfections inthemateria-libeingwound.

i It is lan object of this invention to provide a single drive fora plurality of reels', means being provided -to permit relative movement of the reels. It is another object of the ,invention zto provide separate clutching means for each reel to permit the reels-tolbe` driven at a constant speed. i y

It is a further object of the ,invention to provide a novel form of bobbin, a plurality of which may be mounted on asha-ft in con,- ieuOuS felation in Such away that relatiif mwemeni between dem ,is permitted. 'The invention .will .illereifillly linder- `Steed imm :the QHOWiIig iisriniffm taken ,in connection with the accompanying .drawing illustrating e prefered yfaire' @fthe 111.- -vention and in which; l y

Figure lis a Seo, Iena-1 plan `View nfthe driving and nindingmechaaismt Figure 2 is han end niempartly in seetion, Vtaken .on :line 2. -;2.o`f iFig-ure Land illustrat- 50 ingthedriving c lutchzmemberl .V

i `'lil-ligure 3 is asectionalview ofthe bobbins :l mountedon the drive shaft;'and` e b' Figurtei is an end view of .one of the vbob-l pins."` f' f Referring to the drawing it will be. Seen 155 that adriving member such as a sprocketl() is loosely mounted on a hollow bushing 1l which surrounds a portion of a sl1aft=12. IThese parts are preferably mounted `on `ball bearings and supported `by a bearing: block .60 l. Secured to the bushing'lllby means of a key ,or p inll is a platel and a second plate :16 is mounted .on a sleeve 16a as by means of a pin or keyli?. The plate 16 and its-sup. porting sleeve 16av lare adapted'for sliding i135 longitudinal movement on the shaft 12, the sleeve beingldisposed thereon so as to .permit ,such movement, but they are compelled-t0 rotate with the shaft and to this 4endl the Sleeve may be keyed thereto. The-sprocket v70 10 is preferably provided at spaced intervals with friction plugs 18 of-suflicient length' to i project beyond the opposite faces .of A,the sprocket., spring 19, thetension .ofwhich may be regulated in thevusual manner,` as by 17.5 .a nut 19a on the'threaded'end of 'shaft 12, surrounds the shaft lland .engages al .boss on the plate -16 to force the'plat'e toward vthe sprocket and engage the friction plugs.` AThe pressureof ythe spring also .tends to force .the 1180 .sprocket into frictional engagement with lthe plate l5 whereby said Apla-te firmly'engages plugsfl. l W7 'v '2" vflilountedon the shaftl2lare apair'ofabobbins-20,221, the former' ofxwhichisfkeyed yto 85 theusliaffn V.a key 22 on shaft l2 being provided for this purpose. The V.bobbin Qlis ,preferably loosely ,mounted .on the yshaft A and engaged fby a pin23a`ssociated withthe :bushingfll'. One of ,the .disks or ilangesfio'fthe T.no reel is 1secured tobu'shing ll, the ,other disk 24( Jbeing "held to Lthe shaft "by means fofa catch 25on a'collar' 26 to which Ithe diskl ,is-,preferably attached. 7 'f '1 'f The lbobbins 5.20 and 21 are alike in form-'M35 each :having la central Iaperture `2 7 on ldia'- -metrically oppositesides ofwhioh-are pro- .vided 4.key .slots'=.27:. Onithe opposite vfaces of each bobbin are relatively long slotsl28 y .which :lie/iin a diametric .plane .tliroughfhefi'l tai axis of the bobbin and preferably align with *g the slots '27. kIt will be noted that the key 22 on thershaft l2 does not extend along the shaft far enough to engage the bobbin 21 but,

as shown in Figure 3, engages only the bobbin 20. fThe slot28 on one side of the bobbin 21 is engaged by the pin 23-andV rotationcommunicated to itthereby. By cutting the slots Y as described aboveit vvillY be` seenl that thel bobbins areinterchangeable. -vrlrhis resultsiln conveniencyin manufacture, for since Vboth bobbins are alike, it is unnecessaryto'cons.

struct bobbins of different natures.'n

From the above descriptionitvvill benaIxJ-j,I

parent that 'both of the bobbins are driven from the .double face. clutch *and l; sprocket 18.V

The bobbin 21 is Vdrive-n .through the plate 15, bushing 1l and pin 23, While the rotation of the sprocket is transmitted to bobbin-.20 through'theplate 16, shaft 12V and key 22. Should either .of the reels become `tightly Wound through imperfections vandv variable thicknesses inthe film, vthe resistance setup l.will cause slippage of the clutch plateto 25 which the tight reel is ,connected,.thus per- .'35 Vof the construction disclosed maybe made Without departing fromthe invention.

VIclaim:V Y v 1. A device for Winding a plurality of bobbins comprising ashaft, a driving element,v a

140 friction clutch member. connected to each of said bobbins and to said driving elcment,fsaid driving elementzand one of said bobbins being mounted for rotation on said shaft.. Y

2. A device for Winding a pair ofv bobbins ycomprising a driving element, la clutchmember connected to each of said bobbins, and driven frictionally from said element, one of said bobbins and its clutch membern being connected by avshaft, the other bobbin and its Vclutch member being-loosely mounted on said shaft to permit relative rotary/movement therewith! v 3.,;A device-for Winding a pair ofbobbins comprising a shaft, a driving element adapted to rotate about said shaft', one of said bobbins being secured to said shaft, the other of said bobbins being-loosely mountedfon the shaft,V1 means forconnecting said driving ele- Vment to said shaft for rotating one bobbin, v and means connecting the other of said bobbins toV said ydriving element toV rotate said other bobbin, said second means being adapted to permit relative movement of the bobbins. f

the shaft and disk. i Y

` f6.' A device of the class described compris- .4. 'A .device' for `vvindin'gkk a plurality of bobbins omprising a shaft, a .driving element, a pair of disks for'retaining said bob-H ment and one of said bobbins,'andineans for connecting one'k of saiddisks to said; element and thev otherof'said bobbins, the vconnecting nieansbeing such as to permit relative frotative movement of the, bobbins..l

le. ,fi-devia',fof-winding@ par ofi'bobbns comprising a shaft,` az disk loosely mountedV onsaid, shaft,.each ofvsaid bobbins 'comprising'a'cylindrical member provided With a central. axial, aperture through Which said shaft passes, said Yaperture being provided withan axialV keyway, one side of saidrmem-j bers having a diametrically disposed slotV thereon, a, key on said shaft lcooperatingwith` the keyvvay yof one of said bobbins,7a pin on saiddisk forv cooperating With the "slot in the 'other ofsaid bobbins, andmeans` for rotating-said shaft-and said disk, said means per.- AmittingY relative rotative slippage between ing a rotatingdriving element having opposite friction faces, ashaftonyvvhich said element isi .loosely mounted, -a friction disk secured to the shaft 'and Yrotating the same by engagement with one friction face-of .the

driving element',-abobbinattached tosthe shaft, a bushingv loosely disposed'. on said shaft,a vsecond -frictiondisk' securedftozthe bushing androtating the same by engagement .with the other frictionI face ofthedriv- "i ing element, anda second f bobbin loosely placed on the shaft andv rotated from. the bushing. up v v7. device oftherclass described lcomprising a pairof bobbinsyavrotary driving elemeans for frictionally'y rdriving 'each ybobbin from an opposite frictionface-of said felement, saidllast mentioned means; Vincluding membersl relatively Y movable' rotatably, one

` member connected toeach bobbin.

8. A devicefof the vclassdescribedveomprisashaft, a pair Vof bobbins on saidshaft, a

'ed to rotate about said shaft, one of said bobbins being securedfto said shaft, the other of V" ment/having oppositelfriction Vlvvfaces, and

saidbobbins'being loosely mountedon said shaft, means y"permitting relative movement for connecting saiddrivi'ng element to said shaftfor rotating one bobbin,and means permitting relative movement for connecting the other of said bobbins to said driving element to rotate said other bobbin.

10. Apparatus for simultaneously Wind- `ing a plurality of films comprising,` a shaft,

a hollow shaft concentric With said first shaft and relatively rotatably mounted therearound, a film reel non-rotatably secured to each of said shafts, and a common driving means having frictional connection With said shafts to Wind said films and to allow dierences in tension in said lms to be compensated for by relative movement of said reels.

ll. A device of the class described comprising av pluralityy of bobbins, a rotary driv' ing element having friction faces, and means for frictionally driving each bobbin from a friction face of said driving element, said',

last mentioned means including members relatively movable rotatably, one member connected to each bobbin.

In testimony Whereof7 I have signed my name to this specification this 26th dayof Oct., 1927.

ALBERT L. ADATTE;

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