Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Derailleur for a bicycle










Image Number 2 for United States Patent #4406643.

A derailleur for a bicycle, which is so constructed that a movable member is supported to a base member through two linkage members, a changeover frame having two pulleys carrying thereon a driving chain is pivoted to the movable member, and a tension spring is interposed between the movable member and the changeover frame, so that the tension spring exerts tension on the driving chain, said changeover frame being subjected to resistance against its swinging motion in a direction opposite to the working direction of the tension spring, thereby swinging the changeover frame easily in the direction of working of the changeover frame, while, requiring more force in the reverse direction to the working thereof, thereby making swinging of the changeover frame in the working direction of the tension spring easy and more difficult in the swinging motion direction opposite to the working direction of the spring.








 
 
  Recently Added Patents
Veronica plant named `Amethyst Plume`
Online data conversion technique using a sliding window
Automatic detection of image degradation in enhanced vision systems
Display for gloves
Storage device having clock adjustment circuitry with firmware-based predictive correction
Voltage regulator structure that is operationally stable for both low and high capacitive loads
Multiple carrier compression scheme
  Randomly Featured Patents
Energy limiting oil immersible fuse
Apparatus for determining position of moving body
Can opener
Multi-position travelling carriage with flexible track
Tape cassette with a trapping layer having a corrosiveness which is equal to or higher than that of the magnetic recording layer on the tape
Large coating lump removing device
Container having trapezoidal cross-section
Sound and vibration reducing apparatus
Method to improve wettability by reducing liquid polymer macromolecule mobility through forming polymer blend system
Cladding board mounting system