Well production signal means

Claim 1

In a well pumping unit containing a walking beam carried by a saddle bearing which in turn is supported by a sampson post, said walking beam being driven by a main shaft from a gear box, the improvement comprising a displacement trace signal means which produces a signal upon movement of a member of said signal means and without a cable-and-reel driven device, the character of said signal varying with the extent of movement of said member, said signal means is carried by said walking beam so that movement of said walking beam can cause movement of said movable member, a first elongate member having opposing first and second ends and fixed at its first end to said movable member, said first elongate member extending generally toward said sampson postsaddle bearing combination, said first elongate member terminates at its opposing second end intermediate said signal means and said combination, said second end of said first elongate means carries a swivel means, a second elongate means having opposing first and second ends and fixed at its first end to said sampson post, said opposing second end of said second elongate means being connected to said swivel means so that as said walking beam reciprocates up and down the movable member is moved by the restraint placed thereon by said first and second elongatE means, and means for conducting said signal from said signal means to a receiving means.