US1242605A

US1242605A - Motion-picture apparatus.

Info

Publication number: US1242605A
Application number: US11347716A
Authority: US
Inventors: Eberhard Schneider
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-08-07
Filing date: 1916-08-07
Publication date: 1917-10-09
Anticipated expiration: 1934-10-09

Description

E. SCHNEIDEB..

money HCTURE APPARATUS. APPLICATION FILED MIG-TI "l5- 1,242,605. Patented 0% 9.1917.

3 vwenl'oz Zia/Mid Mada/ UNITED STATES PATENT OFFICE.

EBEBHABD SCHNEIDER,

or new YOBL'H'. Y.

MOTION-PIGTUBE APPARATUS.

Application flied August I,

To all whom it may concern:

Be it known that I, Esnauano Scnnnmnn, a citizen ofthe United States, and a resident of New York, in the county of ew York tain new and useful Improvements in M0- tion-Picture Apparatus, of which the following is a specification.

The invention relates to accessories to motion picture apparatus, such as cameras and projecting machines; and it has for its obect to provide means to induce a circulation of air in the vicinity of said apparatus for the purpose of removing the static electricity with which in rubbing over various supports, and other portions of the apparatus, undesirable results of which charge on t e film are seen in the striations and lightning effects produced thereon.

The nature of the invention will be best understood when described in connection with the accompanying drawings, in which- Figure 1 is a perspective view of a motion picture camera, as one embodiment of the invention.

Fig. 2 is a similar view with the door opened to display the mechanism.

Fig. 3 is a detail plan of the means for inducing the circulation of the air in tie of reference designate throughout the several Similar characters corresponding parts views.

Referring to the drawings, a suitable box, herein shown as of a camera type, carrying at its top in front, a lens shade 12. 13 is provided, swinfging carrying a portion 0 the film moving mechanism 15, which is driven by a crank handle 16 projecting through the said door 13 to advance the film 18, the said mechanism, however, forming no part of the present invention. The portion attached to the inside 13 is rovided with a key 19 at gt a corresponding slot 20 At the side, a door on hinges and the shaft end to of the other ortion, which is mounted in the box .10. n the inside of the door 13, moreover, there is secured a su table device circulation of the air or other through the box and in t e film and its advancing mechfor inducing a fluid within or vicinity of the anism. The same is sist of a short-cylinder shaft 22 and hub 23, from 21 hav' a central v ifiich latter Specification of Letters Patent.

radiate aanes or blades chine herein shown to con- Patented Oct. 9, 1917.

1916. Serial No. 113,477.

. 24, the same being inclined from the to to the bottom. On the shaft 22 is secure a pinion 25 to rotate the said fan by engagin an internal gear 26, as shown in Fig. 2. aid ear 26 is on the shaft 27 of a portion of t e film movin mechanism driven b crank 16; and the ve ocity ratio between t and pinion 25 is such as to rotate the latter at a sufficiently high speed to provide for a proper circulation of the air within or through the container It will be understood that other blowing or suction apparatus coul employed for this purpose and that the same may be variously driven. The general arran ement is such that the current of air rovi ed will remove the charge of static electricity which tends to accumulate generally on the underor celluloid side 0 the film. The undesirable results obtained when no provision is made for doing away with the static electricity are thereby obviated and in a particularly simple manner.

I claim:

1. In a motion picture machine: a film, and film moving mechanism; means to support and guide said film through the mameans to induce a circulation of fluid in the vicinity of said guidinfg and supporting means for the purpose 0 removin from said film any static electricit which it may have become charged t rough frictional engagement therewith.

2. In a motion picture machine: a film, and film moving mechanism; means to support and guide said film through the machine and means driven by said mechanism to induce a circulation of air past em and in the vicinitfy o gu' supporting means in therefrom any static electricitvwhich it may have become charged t rough frictional engagement therewith.

3. In a motion picture machine: a film, and film moving mechanism; means to support and (guide said film throu h the machine; an a fan driven by sai movmechanism to induce a circulation of air in the vicinity of said guiding and sup in means for the purpose of removing rom said film an static electricity with which it may have ecome charged through frictional enga ement therewith.

4. In a motion icture camera: film moving mec anism; a box said mechanism and film; means to support and guide said film through the machine; said mechanism and film and having a an a 'fan mounted within said box and hin ed door, a portion of the film movin ada to be rotated by said film moving mec anism being secured to the inside 0 15 mecfiamsm to induce a circulation of air the said door; a crankoutside the box to 5 past said film and in the vicinity of said rotate said film moving mechanism; and a guidin and supporting means for the purfan carried by said door and connected to pose o removing from said film any static said film moving mechanism to be driven electricity with which it may have become thereby when the said crank is rotated. 20 charged through frictional engagement with Signed at New York, in the county of 10 said iding and supporting means. New York and State of New York this 3rd 5. E: a motion icture camera: a film, and day of August A. D. 1916.

ii iERHARD SCHNEIDER.

moving mec anism; a box containing EB