US1245498A - Motion-picture mechanism. - Google Patents

Description

N. T. NILSSON.

MOTION PICTURE MECHANISM. APPLICATION FILED IIAR.3. I9I7.

Patented Nov. 6, 1917.

2 SHEETSSHEET 1.

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N. T. NILSSON.

MOTION PICTURE MECHANISM.

APPLICATION FILED MAR. 3,197- 1,245,493? Patented Nov. 6, 1917.

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fnv enior: Niall-020115 T Nzlsson NICHOLAUS T. NIIJSSON, OF CHICAGO, ILLINOIS.

Mo'rI'oN-P'IoTUnE MECHANISM.

Specification of LettersPatent.

Patented Nov. 6, 19 17.

Ap Iijca tian-med March-3, 191 7. Serial-No. 152,379.

To all whom 'z't'm ag comm.-

Be it known that LN iononA'us T. NILss'oN, a citiz'enof the United States,-and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Tmprovements in Motion Picture Mechanism, of which the following, when taken in connection with the'drawings accom panying and forming a part hereof, is a specification.

This invention relates to mechanism adapted to be installed in a cabinet arranged to display projected motion pictures; said cabinet designed to be used in homes and in public places before small audiences; and to use the well known 'film picture's which are now employed, in motion picture machines.

The object of this invention is to obtain mechanism which, when installed in a cabinet, may be manipulated from one 'side of the cabinet to insert or-re'm'ove the iilin used and also to adjust the film so that the picture projected there-from will be focused and directed to its determined position on a screen, curtain or plate.

A further object is to obtain mechanism of the kind named which will consist of few parts or members seeonn'ected as not to get out of 'orderor adjustment.

And a further object is to obtain mechani'sm of the kind named which is readily unders'tood and operable by persons not particularly skilled in motion picture machines.

I have illustrated mechanism embodying this invention the drawings accompanying and forming a part hereof in which- Figure 1 is a side elevation, and V Fig. '2, is a vertical section on line of Fig. 1 viewed in the direction indicated by the arrows.

' A reference character applied to designate a given part indicates s'aid part throughout the several figures of the drawing wherever the same appears.

A, Fig. 2 represents a potion of a side wall of a cabinet.

B, represents a base which is secured to side wall A.

G, represents a standard extending from base B, to and supporting bearings D, and E; and G represents a standard also extending frombase B to and supporting a film actuating sprocket wheel and related parts.

F, represents a shaft re'tatably meumed in i a ss' l G represents ale-shutter am of the insenanismand is illustrated as rotatably mounted in bearing E. H, represents a shutter which is provided with suitable openings, as h, and is rigidly secured to the upper, and squared end 9, of shaft G. I, J, are beveled gear wheels which are rigidly secured to shafts F, and G respectively, so as to intermesh.

K represents a wheel or pulley rigidly secured to shaft F. A belt, (not shown) on wheel K drives said wheel, thereby rota-ting the shaft F, which is the driving shaft turnmg the shaft G, shutter H and the several mechanisms about to be described. I

M is a beater which is adjustably mounted on shaft F and actuated thereby to give a step by step movement to the picture film (Z) when the machine is operated.

Beater M, may be turned on shaft F to adjust it relative to said shaft and shutter H, by means of the manually operable wheel 4 (mounted on arm m), and gears in m Gears m" and m intermesh and said gear m is attached to the beater M by screw m".

N is a gear which is rigidly attached to shaft F.

O is an idler loosely mounted on spindle O and provided with gear teeth intermeshing with gears N and P, to communicate motion of said gear N to gear P.

Gear P is a member of the mechanism which draws the picture film Z from spool X.

and delivers it to spool Y. g is a belt pass ing over the pulley L and pulley y to actuate spool Y. Y

The connection between pulley 11 and spool Y is by means of the ordinary friction disks, whereby as the spool is filled no undue strain is put on the film and at the same time it is tightly wound on the spool; but as said connection forms no part of this invention it is not illustrated or described.

Z is an idler for film Z. l

The film actuating mechanism is mounted on the spindle R, and consists of drum Q. which is provided with sprocket teeth 9', the rollers S, S, (rotatably mounted in frames T), and said frames. The gear P is also loosely mounted on spindle R and is rigidly secured to the drum Q.

Frame T consists of a base t, which is provided with hub t, the members 6, which are hinged to base 6 by the spindles U, and the spring a.

The sealers S are rotatably mounted in members t". The spindle R is secured in hub t. The hub t is inserted in the end of standard C and is adjustable by turning it to one or the other direction and secured in its angular-1y adjusted position in said standard. as by set screw u.

To adjust the picture film so that the pic- 7 tures projected therefrom will appear between determined lines on the curtain or screen, the hub t of frame T is turned in the end of the standard C, to move said frame say from the position thereof which is illustrated by full lines in Fig. 1 toward, and if necessary to the position thereof which is indicated by broken linesin said figure.

The spring u yieldingly holds members t" in the positions which are illustrated in the drawing, thereby holding the film, Z, (Fig. 1), on the sprocket teeth but said'members may be turned on pintle U, to permit the removal of said film from the sprocket wheel and the placing of an additional onethereon.

V are projecting lenses, V a condenser and V a lamp. 1V is a film guide comprising two members which are pivotally joined by pintle \V and the upper one thereof yieldingly held closed on to the lower one by spring lV", (see Fig. 2). The members of guide TV are provided with apertures \V, which register when the members thereof are closed,'and with the recesses \V, (see Fig. 2) through which the film extends.

The members of guide \V are separated by turning the upper one of said members on intle \V a ainst the resilienc of spring P b y WV when it is desired to insert a film. in or to remove a film from said guide.

. U is an extension of bearing D, which is rigidly attached to said bearing, to form the supporting member of the lens V, condenser V, and guide TV. I

U" is a reflecting mirror and V V" are lines respectively indicating the direction of a ray of light from lens V to mirror U" and from thence to a screen or curtain.

It will be observed that the film Z is drawn from the spool X by sprocket wheel Q, (said film passing over the idler Z which is positioned between said sprocket wheel and spool), and from said sprocket wheel the film is looped around the lamp V", and condenser V before entering guide TV; and said film, after leaving said guide \V,passes over the beater M to said sprocket wheel Q, and from thence to spool Y, on which it is wound by belt y turning said spool. The film being drawn from spool X and feed to spool Y by a single sprocket wheel, (Q), whatever size is given tothe loop of the film betweensaid sprocket wheel and said guide, as last above described, will remain constant during the entire operation of "transferring the film from said spool X to spool Y. 7 ,i l

The belt driving pulley K is designed to be driven by an electric motor and after a "film has been placed on the spools X, Y,

sprocket wheel Q and in guide W, as herdinbefore described, the lamp V" lighted condenser V and lens V adjusted, and focused, with the member T carrying rollers Sf adjusted to direct the projection of the film to proper position on the screen, said motor may be started and the motion pictures desired thereby obtained.

I claim:

1. Motion picture mechanism comprising a spindle, a sprocket member adapted to actuate a picture film rotatably mounted on said spindle and a gear secured to said sprocket member, in combination with a standard, a roller supporting member con-- sisting of a base mounted on said standard concentric with said sprocket wheel, and

roller carriers pivotally attached to said,

base, rollers rotatably mounted in said carriers to operatively co-act with said sprocket member, means to yieldlngly holdsaid carriers with said rollers in operative position,-

said base movable in said standard to obtain angular adjustment of said rollers on said sprocket member, and means to retain said base in its adjusted position.

2. Motion picture mechanism comprising a rotatably mounted shaft, a beater on said shaft a gear rigidly secured to said shaft, 11 spindle, a sprocket member adapted to actuate a picture film rotatably mounted on said spindle, a gear secured to said sprocket member, and an additional gear intermeshing with said first named gears, in combinghave a picture film in operative contact therewith on'oppositesides thereof, and aetuate said film in opposite directions, rotatably mounted on said spindle and a gear secured to said sprocket member, in com-' bination with a guide for said film positioned to receive said film between the points of contact thereof with said sprocketwheel, a standard supporting member con-- sisting of a base mounted on said standard" concentric with said sprocket wheelwan roller carriers pivotally attached to said base, rollers rotatably mounted in said carriers to operatively co-act with said sprocket member, means to yieldingly hold said car-- riers with said rollers in operative position, said base movable in said standard to obtain angular adjustment of said rollers, on said sprocket member and means to retain said base in its adjusted position.

a. Motion picture mechanism comprising a rotatably mounted shaft, a beater and a sprocket mechanism respectively connected to said shaft to be actuated thereby, and film spools, in combination with a film guide, a lamp, a condenser and a lens, said 15 sprocket mechanism arranged to draw a film from one of said spools and to deliver said film around said lamp and condenser to said guide, and to operatively co-act with said beater to d aw said film through said guide 20 in a step by step movement and deliver it to the other of said spools, and said sprocket mechanism adjustable to position said film in said guide.

NICHOLAUS T. NILSSON. In the presence oit' CHARLES TURNER BROWN, J. SOUDDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0.

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