Abstract: An improved switch point machine is provided which can seal out water, even if the machine itself becomes submerged. The operating rod and the point indicating rod that extend out of the switch box housing should be ground round and have a smooth surface for an improved seal. Those rods are preferably chrome plated. Dynamic hydraulic seals can be used to seal out moisture. Internal components, within the switch box housing, should also be sealed to be water resistant in the event water does enter the housing.

Abstract: A clamp comprising a first end including a base and a hooked portion and a second end moveably connected to the base of the first end. The second end includes a clamped portion and a wire jaw maintaining a wire. The wire jaw is shaped so as to be placed in the second end. The wire jaw including a base and arms extending from the base. The arms defining an opening including teeth, the teeth effective to grip and provide high contact pressure on a rail. A spring is disposed on the base of the first end and is effective to bias the second end toward the hooked portion of the first end.

Abstract: A clamp comprising a first end including a base and a hooked portion and a second end moveably connected to the base of the first end. The second end includes a clamped portion and a wire jaw maintaining a wire. The wire jaw is shaped so as to be placed in the second end. The wire jaw including a base and arms extending from the base. The arms defining an opening including teeth, the teeth effective to grip and provide high contact pressure on a rail. A spring is disposed on the base of the first end and is effective to bias the second end toward the hooked portion of the first end.