Resources Contact Us Home
Motion picture film advancement apparatus with vibration reduction

Image Number 5 for United States Patent #5593078.

A rotary film advancement apparatus for use in a motion picture camera or projector which uses film having pairs of evenly spaced perforations located near the edges of the film having a steering channel which defines a closed loop path having a pre-selected contour. A rotor is mounted on the stator and rotates at a selected angular velocity in a given direction of rotation about a rotor axis which extends through the interior of the closed loop contour. At least one claw is pivotally mounted to the rotor about a pivot axis which is radially spaced from the rotor axis and has a claw tip dimensioned to engage a film perforation. The claw tip rotates with the rotor at a claw tip rotational speed. A steering pin spaced from the claw tip and the pivot axis follows the path of the steering channel thereby pivoting the claw tip both forwardly and backwardly, and inwardly and outwardly.

  Recently Added Patents
Method and system for facilitating micropayments in a financial transaction system
Field device configuration system
Semiconductor device
Method and system for the assignment of security group information using a proxy
Developing device
Single mode optical fiber with improved bend performance
Adaptive control for uncertain nonlinear multi-input multi-output systems
  Randomly Featured Patents
Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters
Selective pants and bands for customized assembly
Multi-stage Geneva mechanism
Method for eliminating the skid marks from workpieces heated in walking beam furnaces and walking beam furnace for performing the said method
Vibration testing of a pole-mounted communications network base station
Blood cradle
Single-lens reflex camera with built-in flash
Multi-compartment pouch
Protective casing for a shaving head
Red-eye detection based on red region detection with eye confirmation