Film feed mechanism in a motion-picture camera

Details Film feed mechanism in a motion-picture camera Film feed mechanism in a motion-picture camera

2008-05-06

2008-05-06

Fuller, Rodney (Department: 2862)

Optics: motion pictures

Camera and/or projector drive mechanisms

C352S180000, C352S184000, C352S187000

Reexamination Certificate

active

07367676

ABSTRACT:
A film mechanism for a motion-picture camera is provided. The film feed mechanism has a transport grip having a transport grip clip and at least one transport grip tip which engages in a sprocket hole of a motion-picture film that is transported at a predefinable film transport speed by the kinematics of the transport grip. The transport grip tip displaces the motion-picture film in an intermittent manner and runs through a closed trajectory whose reversing points determine the length of travel during the film transport. The kinematics of the transport grip can be dynamically and/or statically modified in accordance with the film transport speed by a modification to the relative positions of the transport grip and grip drive connected in an articulated manner to the transport grip in such a way that a constantly correct length of travel during a film transport step of the transport grip is guaranteed.

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English translation of the IPER for International application No. PCT/DE2003/001987, dated Oct. 12, 2004,in the name of Arnold & Richter Cine Technik GmbH & Co. Betriebs KG.
Weise; “Kinogeratetechnik” (Technology for apparatuses), Akademische Verlagsgesellschaft Geest & Porting D.-G., Leipzig C1, 1950, pp. 68-81 (partial translation previously filed).

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