Abstract: A clamp mechanism for a power distribution line sensor including a drive rod having a first rod portion with a spiral thread formed in a first-handed thread direction, a second rod portion with a spiral thread formed in an opposite-handed thread direction, and a coupling end portion. The mechanism also includes a first clamp portion having a first drive block engaged with the first rod portion and a first clamp arm having a pin-in-slot connection to that drive block, as well as a second clamp portion having a second drive block engaged with the second rod portion and a second clamp arm having a pin-in-slot connection to that drive block. The first clamp arm and the second clamp arm are secured to each other, yet rotatable with respect to each other, at a proximal end of each respective clamp arm. A clamp block may function as part of the securement.

Abstract: A clamp mechanism for a power distribution line sensor including a drive rod having a first rod portion with a spiral thread formed in a first-handed thread direction, a second rod portion with a spiral thread formed in an opposite-handed thread direction, and a coupling end portion. The mechanism also includes a first clamp portion having a first drive block engaged with the first rod portion and a first clamp arm having a pin-in-slot connection to that drive block, as well as a second clamp portion having a second drive block engaged with the second rod portion and a second clamp arm having a pin-in-slot connection to that drive block. The first clamp arm and the second clamp arm are secured to each other, yet rotatable with respect to each other, at a proximal end of each respective clamp arm. A clamp block may function as part of the securement.

Abstract: Disclosed is a directly solderable circuit board assembly including a main circuit board directly connected to an auxiliary circuit board without the use of interfacing terminals. The main circuit board has a slot formed therein and the auxiliary circuit board has a projection which is received in the slot of the main circuit board. Conductive pads are formed on both circuit boards at substantially right angles adjacent the intersection of the two circuit boards. A solder fillet is formed bridging the copper pads on each circuit board to provide electrical and mechanical connection.

Abstract: A printed circuit board includes a pair of mounting openings for a connector member comprising a strip of electrically conducting material having a pair of oppositely oriented concave legs joined in a convex head. Each of the legs has an end abutting the circuit board and a narrower foot extending through one of the openings and soldered to the printed circuit on the opposite side of the board in a wave soldering process. The spacing of the mounting openings is less than that of the ends of the legs of the unbiased connector member so that the latter must be pinched closed to be mounted on the board and is positively retained thereon until soldered. The spacing also maintains the concave legs of the mounted connector member in contact with each other at their point of closest approach for controlled retention of a mating connecting member shaft but separated at the ends so that no molten solder wicks therebetween by capillary action in the wave soldering process.