Spring reel retraction speed governor

In combination:

• a support;
• a spring-loaded reel rotatably mounted on said support;
• an elongated, flexible member wound upon said reel which may be manually pulled from said reel against the spring action of said spring-loaded reel to an extended position and which may be rewound upon said reel by the spring action of said spring-loaded reel;
• a hydraulic braking mechanism removably operatively connected to said reel for controlling the rate of rotation of said reel as said elongated member is rewound upon said reel;
• a first sprocket mounted on said reel for rotation therewith;
• a first shaft rotatably mounted on said support;
• a second sprocket mounted on said first shaft;
• and a chain extending around said first and second sprockets;
• said hydraulic braking mechanism being operatively connected to said first shaft.

In combination:

• a cable reel support;
• a spring-loaded cable reel rotatably mounted on said cable reel support;
• a cable wound upon said cable reel which may be manually pulled from said cable reel against the spring action of said spring-loaded cable reel to a locked extended position and which may be rewound upon said cable reel by the spring action of said spring-loaded cable reel when said cable reel has been moved to an unlocked position;
• a hydraulic braking mechanism for controlling the rate of rotation of said cable reel as said cable is rewound upon said cable reel comprising:
• a body which has a fluid chamber formed therein which has an inlet port and an outlet port in communication therewith;
• a first rotatable impeller positioned in said fluid chamber;
• a second rotatable impeller positioned in said fluid chamber which meshes with said first impeller for rotation therewith;
• a shaft being operatively connected to one of said first and second impellers for rotation therewith;
• said body having a fluid passageway formed therein which fluidly connects said inlet and outlet ports;
• a selectively secured needle valve positioned in said fluid passageway for adjustably restricting the flow of said fluid between said inlet and outlet ports;
• the rotation of said shaft causing said impellers to force fluid from said fluid chamber into said outlet port, through said fluid passageway, and thence into said fluid chamber via said inlet port.

In combination:

• a support;
• a spring-loaded reel rotatably mounted on said support;
• an elongated, flexible member wound upon said reel which may be manually pulled from said reel against the spring action of said spring-loaded reel to an extended position and which may be rewound upon said reel by the spring action of said spring-loaded reel;
• a hydraulic braking mechanism for controlling the rate of rotation of said reel as said elongated member is rewound upon said reel comprising:
• a body which has a fluid chamber formed therein which has an inlet port and an outlet port in communication therewith;
• a first rotatable impeller positioned in said fluid chamber;
• a second rotatable impeller positioned in said fluid chamber which meshes with said first impeller for rotation therewith;
• a shaft being operatively connected to one of said first and second impellers for rotation therewith;
• said body having a fluid passageway formed therein which fluidly connects said inlet and outlet ports;
• a selectively secured needle valve positioned in said fluid passageway for adjustably restricting the flow of said fluid between said inlet and outlet ports;
• the rotation of said shaft causing said impellers to force fluid from said fluid chamber into said outlet port, through said fluid passageway, and thence into said fluid chamber via said inlet port.