Abstract: A lightweight, portable fish strike indicator for use with a fishing rod to provide a visible indication of the movement of the rod tip especially during low ambient light conditions. The fish strike indicator includes a high intensity light source, which transmits light through an optical fiber to the tip portion of a fishing rod. The motion of the tip during and after a fish strike are translated in to a visible light trace whose arc length and oscillation frequency are proportional to the force of the strike and provides an indication whether the fish has been hooked. The high intensity light source along with the optical fiber extending to the tip of the rod can be easily attached to or removed from the outer surface of the shaft of a fishing rod, or may be imbedded inside the shaft as a more permanent accessory.

Abstract: An internally mounted, portable clamping device for preventing distortion during welding of branch fittings on thin walled pipe. The clamping device comprises a pair of generally arc-shaped clamp halves which are inserted into a pipe and engaged by a screw inserted through a branch fitting which has been tack-welded to the outer surface of the pipe. Turning the screw in one direction moves the clamp halves radially apart until they engage and apply a radially tensive force on portions of the inner surface of the pipe immediately adjacent and opposite the fitting, thereby preventing the pipe from distorting during finish-welding of the fitting. The clamp is disengaged by turning the screw in the opposite direction.