US1273921A - Supporting-frame for motion-picture machines. - Google Patents

Description

N. POWER.

SUPPORTING FRAME FOR MOTION PICTURE IMAQHINES.

APPLICATIUN FlLED JULY 4| 1914.

2 SHEETSSHEET 1.

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N. POWER.

' SUPPORTING FRAME FOR MOTION PICTURE MACHINES.

APPLICATION HLED JULY [4. l9l4. 1,273,921. Patented July 30,1918.

2 SHEETSSHEET 2- llII lLP lllllllll llflltllul l im UNITED STATES PATENT OFFICE.

NICHOLA'S POWER, OF BROOKLYN, NEW YORK, ASSIGNOR TO NICHOLAS POWER COM- PANY, OF NEW YORK, N. Y., ACORPORATION OF DELAWARE.

Specification of Letters Patent.

Patented July 30, 1918.

Application filed July 14, 1914. Serial No. 850,871.

To all wham it may concern:

Be it known that I, NICHOLAS POWER, a citizen of the United States, residing in Brooklyn, county of Kings, and State of New' York, (whose post-oifice address is #388 Jefferson avenue,) have invented new and useful Improvements in Supporting- Frames for Motion-Picture Machines, of which the following is a specification.

This invention relates to motion picture machines and sup orting frames therefor,

' and has for its ob ect to provide a moving picture machine having a'frame. by means of which the direction of the projection may be adjusted to any desired angle relative to the level of the floor or surface on which the machine is set.

A further object of the invention is to provide a frame for moving picture machines of the class described in which the mechanism is driven by a suitable electric, or other, motor attached to the frame constructed so that the direction of the projection may be adjusted to any desired angle without disturbing the level of the driving motor.

With the above objects in view my invention consists of the construction hereinafter described and illustrated in the acompanyin drawings wherein,

Tigure 1 is a side elevation of my improved machine, and

Fig.2 a vertical sectional view through the supporting frame.

Referring to the drawings, and particularly Fig. 1, 1 represents the base of the frame which is rigidly supported at each corner on a suitable leg 2. The legs 2 are preferably madev extensible by means of set screws 3 in their sockets, whereby the relative lengths of the legs may be varied to maintain the base 1 level on a sloping or uneven support. Integral with the. base 1 is an upwardly projecting vertical plate 4 of circular shape and having at the center of the circle a bearing or journal box 5. The upper artof the frame 6 consists of a shelf-1i e part 7 forming a base for the machine head 8 and having a downwardly projecting vertical web 9, a portion of Wl'llOh is circular in design and lies parallel to the part. 4 of the base. The part 9 is supported on thebase by means of a'hollow spindle 10 which works in the bearing 5 and by clamping bolts 11 working in arcuate slots near the periphery of the part 4. Also attached to the upper part 6 of the frame are the longitudinal rods 12 which support the lamp house 13 whichincloses the arc light, or other light used to produce the projection. The rods 12 are supported at their free ends by the diagonal brace 14 mounted on the lower corner of the web 9. It will be understood that the lamp house 13 is the rod while on the rear rod 15 lying under the center of the lamp house, a roller.l6 is provided to carry the weight of the lamp house and make the adjustment easier.

Also supported on the upper part of the frame beneath the shelf 7 is the magazine 24 which incloses the receiving reel 25 on which the film is wound after its passage through the projecting machine. This reel is driven by a shaft 26 which projects through the bearing in the tubular spindle 10 and carries on its outer end a suitable driving pulley belted to a driven shaft 27 of the projecting mechanism, as diagrammatically indicated in Fig. 1.

The' driving motor 17 is shown as a small electric motor and it is rigidly attached to the underside of the base 1 as is also the variable speed gear 18 through which the mechanism is driven by means cf a belt 19 extending from the driven part of the speed gear to the drivin pulley 20 of the projecting mechanism. he belt 19 does not pass directly from the gear 18 to the pulley 20 but passes over two idler rollers 21 supthen loosened and the upper part of the frame adjusted in the bearing 5 as a center to give the desired inclination to the machine as determined by the elevation of the machine above the centerof the screen on which the pictures are to be projected. After adjustment the bolts 11 are set to clamp the frame parts together in a single rigid construction. The angular adjustment of the frame obviously varies the dis tance of the pulley 20 on the driving gear thereby varying the tension of the drivin belt. This difi'erence, however, may be ta en care of by adjusting the bracket 22 on the rod 12. Adjustment of the bracket 22 also provides for varying the path of the belt to compensate for any stretching or shrinkage of the belt. As the frame is adjusted around the reel shaft 26 as a center it is obvious that the driving belt for the reel will not be afi'ected.

For convenience of the operator in adjusting the speed gear 18 an operating handle 28 is provided: pivotally mounted on the front face of the upper part 6 of the frame and is provided with a locking pawl engaging the ratchet segment attached to the frame. The handle 28 is connected to the operating bell-crank 29 of the gear by means of a link 30 formed of telescoping adjustable parts whereby the link may be shortened or lengthened to compensate for the adjustment ofthe frame.

Having thus described my invention, what llclaim anddesire to secure by Letters Patent is:

i. In a motion picture projecting apparatus, a supporting frame comprising a stationary base portion, a driving motor mounted on the base portion, an upper portion supporting the projecting mechanism, a pivotal connection between the two parts permitting relative angular adjustment, said connections comprising a hub and bearing on said two parts respectively, flanges on said huband bearing and clamping bolts for clamping said flanges together to lock said parts together in adjusted relation, and a power transmitting connection between said motor and said mechanism.

2. In a motion picture projecting apparatus, a supporting frame comprising a stationary base portion, a driving motor mounted on the base portion, an upper portion supporting the projecting mechanism, a pivotal connection between the two parts permitting relative angular adjustment, a power transmitting connection between said motor and said mechanism, and means for adjusting said power transmitting connection to compensate for'the relative adjustment of said motor and said projecting mechanism.

3. In a motion picture projecting apparatus, a supporting frame comprising a stationary base portion, a driving motor mounted on thebase portion, an upper portion supporting the projecting mechanism, a pivotal connection between the two parts permitting relative angular adjustment, and a power transmitting connection between said motor and said mechanism, said power transmitting connection comprising a variable speed gear supported on said base and means for adjusting said gear supported on said upper frame part and adjustably connected to said gear.

4. In a motion picture apparatus, the combination of a supporting frame comprising abase, means for adjusting said base relativelyv to the supporting surface, an upper frame part pivotally supported on said base, means for clamping said upper frame part in various positions of adjustment, a projecting mechanism mounted on said upper frame part, a receiving magazine also supported thereon, and having a reel-supporting shaft at the center of adjustment of said frame part and a driving connection between sald projecting mechanism and said reelsupporting shaft.

5. in a motion picture apparatus, the combination of a frame or stand having a base, means for adjustably supporting said base at difierent angular positions, an upper frame part mounted on said'base for angular movement in a vertical plane, said upper frame part comprising an angular frame having on its upper surface a seat for the pro ecting apparatus and downwardly projecting arms to embrace and support a reel inclosing magazine, and a lateral extension from said upper frame part for supporting the projecting lamp.

6. In a motion picture apparatus, the combination of a frame or stand having a base, means for adjustably supporting said base at diflerent angular positions, an upper frame part mounted on said base for angular movement in a vertical plane, said upper frame part comprising an angular frame having on its upper surface a seat for the pro ecting apparatus and downwardly proecting arms to embrace and support a reel inclosing magazine, a lateral extension from said upper framepart for supporting the pro ecting lamp, and a driving motor supported-on said base having driving connectiont with the projector on said upper frame par .7. In a motion picture apparatus, the combination of a frame or stand having a base, an upper frame partmounted onsaid base for angular movement in a vertical plane, said upper frame part comprising an angulat frame having on its upper surface a New York and State of New York this 29th seat lfor the projecting apparagus and. downday of June, 1914. warc 1y projecting arms to em race and supv port a reel inolosing magazine and a lateral NlCHOLAS POWER '6 extension from said upper frame part for Witnesses:

s11 porting the projecting lamp. W. B. MORTON,

igned at New York in the county of EDWARD EARL.

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