US611591A - Office - Google Patents

Description

Patented Sept. 27, |8198.. K HY. CASLER. coNsr-:cuTlvE vlEw APPARATUS. (No Model.)

(Application filed Dec. 10, 1896.)

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' Patented Sept. 277 i898. H. CASLER. y coNsEcuTlvE vlEw APPARATUS. No Model.)

(Application led Dec. 10, 1896.)

4 Sheets--Sheet 2.

y UIAIIJHHHIA JUNI Illlllh wnNEssEs: INVENTOR 6g/@MQ mm A A 2W/M yf' f' 5M (4 ATTORNEQ No. 6ll.59|. Patented Sept. 27, |898. j

H. CASLER.

NSEGUTIVEA VIEW APPARATUS..

(Appucacion med me. 1o, 189e.)

(Nu Model'.) 4 Sheets-Sheet 3.

WITNESSES:

i INVENTOR WM/@m www 75g@ anmwq ATTORN EYS No. ||,'59|. Patented Sept. 27,1398.I

H. cAsLl-zn.

CONSECUTIVE VIEW APPARATUS.

(Application led Dec. 10, 1896.) (No Model.) 4 Sheets-Sheet 4.

WITNEssEs: Z7 Zim Y l INVENTOR I A fi Bj hffmf/M ATTORNEYS lINTTrD STATES PATENT @Trient HERMAN OASLER, OF OANASTOTA, NEW YORK, ASSIGNOR TO TI-IE AMERICAN MUTOSYOOPE COMPANY, OF NEXV YORK, N. 4Y.

CONSECUTIVE-Vl EW APPARATUS.

SPECIFICATION forming part of Letters Patent No.` 611,591, dated September 27, 1898.

Application filed December 10,1896. p Serial No. 615,190, (No model.)

To @ZZ whom it may concern:

Be it known that I, HERMAN OASLER, a citizen of the United States, residing at Canastota, in the county of Madison and State of New York, have invented certain new and useful Improvements in Consecutive-View Apparatus, (Oase No. 8 g) and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates generally to movingpicture or consecutive-view apparatus, and particularly to the film or strip feeding mechanism of such apparatus; and my invention consists in the novel construction of such feeding mechanism whereby the speed of the winding-up reel is automatically adjusted so as to correspond exactly to the speed at which the film is fed through the field of the apparatus without putting severe stress upon the film, in the means employed for facilitating the removal from the reels of rolls of film or the placing of such rolls of film thereon, and in the combination and relative arrangement of the parts.

The objects of my invention are, first, to provide an improved film or picture-strip feeding mechanism for consecutive-view apparatus arranged to Wind up the film upon a suitable reel, after it has passed through the field of the apparatus, at such speed that all slack shall be taken up and which shall not subject the film or strip to severe strain; second, to provide means for facilitating the removal of rolls of film from the reels or the placing of such rolls on the reels Without unwinding the rolls, and, third, to make the whole apparatus simple, compact, and capable of operating at a high rate of speed without vibration and without injuring the film. These objects are attained in the film or strip feeding mechanism herein described and illustrated in the drawings which accompany and form a part of this application, in which the same reference-numerals indicate the same or corresponding parts, and in which- Figure l is a side elevation of the film or strip feeding mechanism of a consecutiveview apparatus, together with the supply and winding-up reels. Fig. 2 is a similar elevation of the opposite side of the machine, showing the variable-speed gears which drive the main feeding and the winding-up mechanisms and the friction-brake which retards the feeding of the lm from the supply-roll. Fig. 3 is a detail side elevation of the upper portion of the feeding mechanism, showing the main feeding mechanism open for the threading of the strip. Fig. 4 is a detail plan view of the gripping-roller of the auxiliary feeding mechanism, the friction-disk 35, and the parts in proximity thereto. Fig. 5 is a detail plan View of the gearing at the top of the driving-shaft of the main feeding mechanism,

Vthe universal-joint bracket in which said shaft has a bearing being shown in section. Fig. 6 is a detail plan view of the regulatingshaft 44:,which controls the speed of the main feeding mechanism, with the parts thereon, certain of these parts being shown in section. Fig. 7 is a detail `view of the variable-speed gear which drives the winding-up reel, showing the use of a spring to reinforce the weight of the worm-shaft in regulating the speed of the winding-up roll. Fig. 8 is a detail elevation of the reel upon which the stripis Wound. Fig. 9 is a transverse section of the same. Fig. 10 is a front elevation of the reel, with the surrounding band 25, this band being broken away from about the center of the figure to the top thereof and Fig. 11 is a perspective elevation of this band 25, showing particularly the projections by which it is held to the reel when in use.

In the drawings the film-feeding mechanism is shown applied to a consecutive-viewprojecting apparatus. The feeding mechanism consists of a main feeding or delivering mechanism which draws the film 7 from the supply-reel S and delivers it to the eld of the projecting apparatus, a take-up mechanism which carries the film from the field of the projecting apparatus and delivers it to the Winding-up reel 24, and an auxiliary intermittentlyacting feeding mechanism which draws the film intermittently through the fieldof the projecting apparatus.

The main feeding and the take-up mechanisms consist each of a series of pulleys, about which runs a single feed-belt 21..

11, 13, and 38 are the pulleys which con- ICO stitute, with the portion of the feed-belt 21 upon them at any instant, the main feeding mechanism, and 49, 19, and 20, with the portion of the belt 21 upon them at any instant, constitute the take-up mechanism.

46 and 48 are idler-pulleys, and 47 isa belttightener pulley mounted upon a swinging hanger.

The belt 21 passes in a tortuous course around the pulley 11, over the pulley 13, and under the pulley 38, and then over pulleys 46 and 48, under pulley 49, and over pulleys 19 and 2O and the tightener-pulley 47. The pulley 38 is the pulley which drives the belt 21. It is mounted upon the shaft 39, the end of which is seen in Fig. 2, and which is driven by a variable-speed driving-gear composed of a worm-wheel 40, a worm 33, mounted upon the shaft 41 and connected to said shaft by a spline, so that the shaft may move up and down freely, and a friction-wheel 42, also mounted upon said shaft and coacting with the friction-disk 35, which is mounted upon the main driving-shaft 2 (shown in Fig. 1 and in dotted lines in Fig. 4) and is driven by a belt 36, running over a belt-pulley 55, Fig. 4, mounted on said shaft, and over an idler 37.

The upper bearing of the shaft 41 is in a universal-joint bracket 54, (shown in Fig. 5,) and the lower bearing of the shaft is in a sleeve 43, secured against longitudinal movement relative to said shaft and longitudinally movable in a bearing in a sleeve 56, (shown particularly in Fig. 6,) mounted upon the shaft 44.

The sleeve 43 is provided with rack-teeth, and the shaft 44 has a pinion 45, which meshes with these rack-teeth. The shaft 44 is Aalso provided with a handle or crank (shown in Figs. 1 and 3) by which it may be rotated. Rotation of the shaft 44 moves the shaft 41 and friction-wheel 42 up or down, thus varying the distance of the friction-wheel 42 from the center of the friction-disk 35, and so regulating the speed of the pulley 38 and belt 21.

The auxiliary intermittently-acting feeding mechanism consists of two opposing pulleys 3 and 4, (shown in Fig. 1,) driven at the same peripheral speed by a belt 5, which also passes around a belt-tightener 6. Pulley 3 is upon the main driving-shaft 2 and has a portion of its periphery of such diameter that when that portion is in proximity to the pulley 4 the film-strip between these pulleys is pressed tightly against the pulley 4; but a large portion of the periphery of pulley 3 is of a smaller diameter or is cut away, and when this portion of the pulley is adjacent to the pulley 4 the film is free.

The parts of the apparatus thus far described are also illustrated and described and are claimed in a separate application, filed December 10, 1896, Serial No. 615,189.

The strip or film 7 as it is drawn from the supply-roll 8 passes over guide-pulleys 9 and 10, over pulley 11 and the belt 21, thence around the guide-pulley 12 and over pulley 13, passing under the belt 21, and thence around the stud 14 and through a guide 15, which guides it while passing through the field of the projecting apparatus and by friction retards it sufficiently to hold it stationary when the auxiliary feeding mechanism is not feeding it forward, and between the pulleys 3 and 4 of the auxiliary feeding mechanism and bya loop through the guide 18 and around pulleys 19 and 20, passing first under the belt 2l and then over it, around the guide-pulley 22, and through a guide23 to the windingreel 24. In passing through the main feeding and the take-up mechanism it is brought into close contact with the driving-belt 21 and is therefore drawn from the reel 8 and taken up after passing through the field of the apparatus by friction with this driving-belt. The object of feeding the film by a belt and not by pulleys driven by gearing or belting which does not come in contact with the film is to avoid the unequal feeding of the strip in the main feeding and in the take-up mechanisms which results from the practical difficultyin making two feeding-rolls of precisely the same size and in driving them at precisely the same peripheral speed.

The illuminating apparatus is designed to be placed upon the shelf 17. It is not illustrated in the drawings, as it forms no portion of the invention.

16 is the barrel of the projecting apparatus.

The pulley 11 of the main feeding mechanism is mounted upon a swinging hanger and is arranged to be moved upward in the position shown in Fig. 3, so as to slack the belt 21 and permit the direct threading of the film. The pulley 19 is also mounted upon a similarhanger. (Shown in dotted lines in Fig. 1.) Inv threading the film it is carried from the reel 8 over guide-pulleys 9 and 10 and then between the pulleys 11 and 13, pulley l1 being in the position shown in Fig. 3, a loop being formed behind the pulley 13. This loop is then carried down and over the guidepulley 12. The film is then carried downward through the guidev 15, which is hinged and opens, as shown in Fig. 3, through the pulleys 3 and4 of the auxiliary feeding mechanism and through the guide 18, between the pulleys 19 and 2O and over the guide-pulley 22 to the guide 23 and to the winding-up reel 24. When the film has been threaded, the pulley 11 is restored to its normal position, (shown in Fig. V1,) thus drawing the belt tight.

The winding-reel 24 is driven from the shaft 2 and friction-disk 35, mounted thereon, by means of the friction-wheel 34, mounted upon a shaft 31, revolubly mounted and arranged to slide up and down in a sleeve A worm 30 is rigidly secured to the end of this shaft and meshes with a worm-wheel 29 upon the shaft 28, upon which shaft the winding-up reel 24 is mounted. When the friction-disk 35 rotates, this movement is communicated to the reel 24 through the shaft 31 and worm- IOO IIO

gear, the weight of the shaft 3l and parts thereon holding it at practically its greatest distance from the center of the disk 35; but when the film 7 is drawn taut the reel 24 can rotate only at the speed at which the film is fed to it, and since when the friction-wheel 34 is at its greatest distance from the center of the disk 35 it tends to rotate the reel 24 at a much greater speed than that at which the film is fed by the feeding mechanism as soon as the film becomes taut the speed of the film becomes less than the speed at which the wheel 34 tends to drive it and the worm 30 climbs upon the gear 29, so raising the friction-wheel 34 until the speed of the windingreel is adj usted to the speed at which the film is delivered to it by the take-off mechanism. As the film is wound upon the reel 24 the di ameter of this reel gradually increases; but as it does so the shaft 3l gradually rises, so as to keep the peripheral speed of the outside layer of film upon the reel 24 the same as the speed at'which the film is delivered to the reel. If theweight of the shaft 31 and parts thereon is not sufficient to balance to the proper degree the tendency of the worm 30 to climb upward -upon the gear 29, the weight of thc shaft 3l and parts connected therewith may be reinforced by a spring 57, as shown in Fig. 7. The upper end of this spring may rest against the upper bearing of the shaft 3l, and the' lower end may rest against an adj ustable collar 5S.

In order to provide a constant tension upon the film as it is drawn from the delivery-reel 8, a friction-pulley 5l, Fig. 2, is mounted upon the same shaft which carries the reel 8, and a suitable friction-brake is applied to this pulley. The frictionfbrake may be conveniently a band 52, with aweight 53 depending therefrom.

The mode of operation of my invention is as follows: The variable-feed gear (illustrated and more fully described in another application filed of even date herewith, Serial No. 615,189) draws the web 7 from the reel 8 as fast as it may be required, the necessary tension for smooth working being secured by the band-brake 52. After passing through the machine the strip is wound up on the winding drum or rcel 24. It is evident that as the strip is wound up on this drum and the diameter of the outer circle increases the speed of rotation of the drum must decrease, so that the circumferential speed shall remain approximately uniform. My invention accomplishes this automatically by reason of the fact that the driving worm-shaft 31 is ordinarily held by its own weight and sometimes by the additional help of the elasticity of a spring, as shown in Fig. 7, in its lowest position on the friction-disk, as shown in the drawings; but when the worm-shaft is rotated by the friction-disk the resistance to motion of the worm-wheel 29 causes the worm 30 to start to screw up on the worm-wheel, thus raising the worm-shaft and carrying the friction-wheel higher up on the friction-disk, and its action continues until the speed of the worm-shaft has become such as to put only the proper and predetermined amount of tension upon the strip,which is winding up upon the reel mounted upon the shaft of the worm-wheel 2S, and it will appear that as the diameter of this reel grows greater the friction-wheel 34 will be carried farther up upon the friction-disk 35, thus reducing the angular velocity of the stripreel and maintaining the tension upon the strip practically uniform.

Itis frequently desirable after a strip of film has been wound upon one of the reels 8 or 24 to remove the strip therefrom bodily without unwinding it and to place another strip thereon. In order that this mayl be done, one portion of the rim of the reel is hinged, as shown in Fig. 8 and as also shown in connection with the reel 24 in Fig. l. Being hinged, this section is capable of being swung inward, as shown in Fig. 8 and in dotted lines in Fig. l, thus loosening the film somewhat. Preferably the film is not wound directly upon the reel, but upon a circular iieXible band or envelop 27, preferably of metal, which is slipped over the reel. The band 27 prevents the elasticity of the film from taking up the slack which is produced when the hinged section of the rim of the reel is swung inward, as shown in Fig. 8.

.The band 27 is provided with projections 59,

which are adapted to enter slots between the body of the rim and the hinged section 25, so holding the band in place on the reel. The ends of the strip of metal which forms the band 27 overlap and are not riveted together at the very end, so that a slot is left into which the end of the film, when folded over, may be placed, in order to hold it to the band. i A latch 26 is provided to hold the hinged section 25 of the rim of the reel in place when the reel is in use.

Various changes could be made in the details of my apparatus. Other forms of variable-speed mechanism could be substituted for the friction disk and wheel, other locking devices might take the place of the latch 26, other forms of friction-brake could be substituted for the band 52, and so on, as long as the principle of operation above described is retained.

Having therefore described my invention, what I claim as new, and desire to protect by Letters Patent, is

l. In a consecutive-view apparatus, the combination, with supply and winding reels, and feeding mechanism for drawing a flexible strip from the supplyreel, passing it through the field of the apparatus, and delivering it tothe winding-reel, of a wormwheel having driving connection with the winding-reel, a worm meshing therewith, a shaft to which said worm is rigidly secured carrying a friction-wheel contacting with a friction-disk, said shaft being free to move IOC IIO

in the direction of its length, and means for rotating the friction-disk, substantially as described.

2. In a consecutive-view apparatus, the combination, with supply and Winding reels, and feeding mechanism for drawing a lieXible strip from the supply-reel, feeding it intermittently through the field of the apparatus, and delivering it to the winding-reel, of aWorm-wheel having driving connection with the winding-reel, a worm meshing therewith, a shaft to which said worm is rigidly secured carrying a friction-wheel contacting With a friction-disk, said shaft being free to move in the direction of its length, and means for rotating the friction disk, substantially as described.

3. In a consecutive-view apparatus, the combination, with supply and winding reels, and feeding mechanism for drawing a flexible strip from the supply-reel, feeding it intermittently through the field of the apparatus, and delivering it to the winding-reel, of a Worm-wheel having driving connection with the Winding-reel, a worm meshing therewith, a shaft to which said worm is rigidly secured carrying a friction-Wheel contacting with a friction-disk, said shaft being free to move in the direction of its length, means for rotating the friction-disk, and means for communicating motion from said disk to the main feeding mechanism, substantially as described.

4. In a consecutive-view apparatus, the combination, with supply and winding reels, main feeding and take-up mechanisms for drawing the film from the supply-reel and delivering it to the winding-reel, and an auX- iliary intermittentlyacting feeding mechanism for feeding the film intermittently through the cld of the apparatus, of a revolublymounted shaft carrying a frictiondisk, means for rotating said shaft, means for driving the auxiliary intermittently-acting feeding mechanism from said shaft, friction-wheels contacting with said friction-disk and mounted upon two revolubly-mounted the disk, of a winding-reel, aWorm-Wheel on the axis of said reel, a worm meshing there- With, and rigidly secured to a longitudinallymovable shaft, a friction-wheel on said shaft and coacting with said friction -disk, and means for continuously exerting a force tending to give said shaft an endwise motion of translation away from the center of the friction-disk, substantially as described.

6. The combination with a winding-drum having a segment of its circumference hinged to the adjacent portion thereof, and an adjustable latch for forcing said segment away from the center of the drum, and of a iieXible circular envelop for said drum of such size that it will slip off when the hinged section is released, but will be locked in place when said segment is forced out by the latch, substantially as described.

7. The combination, with a Winding-drum having a variable periphery, of a flexible circular envelop for said drum of such size that it will slip off from the drum when the periphery thereof is reduced, but is held in place when the periphery is increased, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HERMAN OASLER.

Witnesses:

GEo. B. RUSSELL, GRACE RosE.

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