Screw gear means and method for same

An adjusting mechanism comprising a screw gear and a standard thread machine screw element of one of the following standard family of screw threads:

• American National Unified Threads (UN, UNC, NC, UNF, NF, UNEF, NEF, UNREF), Unified Screw Threads, American Standard Threads, American National Standard Metric Screw Threads (General Purpose, Mechanical Fastener, Fine Pitch), British Withworth Screw Threads, British Standard Fine Screw Threads, British Association Threads, Straight Pipe Threads, British Standard Metric Threads, Lowenherz Threads, and SAE Threads, said standard thread machine screw element having a non-threaded portion, said non-threaded portion being located adjacent its threaded portion, said screw gear comprising a screw gear body having an axis of relative rotation with respect to said standard threaded machine screw element, said standard threaded machine screw element having its own axis of relative rotation with respect to said screw gear, a peripheral portion on said screw gear body of said screw gear extending away from the axis of relative rotation of said screw gear and from the axis of rotation of said standard threaded machine screw dement, at least a plurality of semi-circular or less segment threads of said same one of said standard family of screw threads formed in a curved path on said peripheral portion extending about said screw gear body and axis of relative rotation of said screw gear, said plurality of semi-circular or less segment threads on said screw gear peripheral portion being compatibly, cooperatively and threadedly engaged with the threads on said standard thread machine screw element, rotational movement of said screw gear relative to said standard machine screw element causing though said cooperative threaded engagement linear motion of said standard machine screw element relative to said screw gear, alternatively linear or rotational movement of said standard machine screw element causing through said cooperative threaded engagement rotational motion of said screw gear relative to said standard machine screw element, whereby one of said screw gear and standard machine screw element may be moved to adjust the position of the other of said screw gear and standard machine screw element.

An adjustment mechanism comprising a screw gear and a standard thread machine screw element of one of the following standard family of screw threads:

• American National Unified Threads (UN, UNC, NC, UNF, NF, UNEF, NEF, UNREF, NEF), Unified Screw Threads, American Standard Threads, American National Standard Metric Screw Threads (General Purpose, Mechanical Fastener, Fine Pitch), British Withworth Screw Threads, British Standard Fine Screw Threads, British Association Threads, Straight Pipe Threads, British Standard Metric Threads, Lowenherz Threads, and SAE Threads, said standard thread machine screw element having a non-thread portion, said non-threaded portion being located adjacent its threaded portion, said screw gear comprising a body having an axis of relative rotation with respect to said standard threaded machine screw element, said standard threaded machine screw element having its own axis of relative rotation with respect to said screw gear, a peripheral portion on said body of said screw gear extending away from the axis of relative rotation of said screw gear and from the axis of rotation of said standard threaded machine screw element, at least a plurality of semi-circular or less segment threads of said same one of said standard family of screw threads formed in a curved path on said peripheral portion extending about said body and axis of relative rotation of said screw gear, said plurality of semi-circular or less segment threads on said screw gear peripheral portion being compatibly, cooperatively and threadedly engaged with the threads on said standard thread machine screw element, rotational movement of said screw gear relative to said standard machine screw element causing though said cooperative threaded engagement linear motion of said standard machine screw element relative to said screw gear, alternatively linear or rotational movement of said standard machine screw element causing through said cooperative threaded engagement rotational motion of said screw gear relative to said standard machine screw element, whereby one of said screw gear and standard machine screw element may be moved to adjust the position of the other of said screw gear and standard machine screw element further comprising at least a second standard thread screw element of the same thread as said first standard thread screw element, and said second standard threaded screw element engaging said threaded portion of said screw gear.