Abstract: A nozzle with sucker comprises a nozzle body having a jet hole for hot water, a sucker attached to a rear face portion of the nozzle body and adapted to fix the nozzle body to the surface of a wall of a bathtub by suction, and an angle adjusting member for adjusting the angle of the nozzle body compared to the surface of hot water in the bathtub. Thus, the nozzle can be easily attached to and detached from the wall surface of the bathtub.

Abstract: A jet nozzle apparatus includes a hose having a faucet connection member to be connected to a faucet of a hot-water supply system or a hot-water supply unit, a mixing unit for mixing compressed hot water introduced through the hose with air, and a nozzle, connected to the hose, for forcibly jetting out a fluid mixture of hot water and air. A fluid mixture of hot water and air can be jetted out in an arbitrary direction by using the nozzle.

Abstract: A jet nozzle attachment includes a hose having a connecting member to be connected to a compressed hot water jet hole formed inside a bath, and a nozzle, connected to the hose, for forcibly jetting out a fluid mixture of hot water and air. A fluid mixture of hot water and air can be jetted out in an arbitrary direction by using the nozzle.

Abstract: A bathtub having a pump, comprising a tub having side walls one of which has an inner surface, an outer surface, and a thin portion made of magnetically permeable material, pump means secured to the inner surface of the thin portion, for taking in hot water from said tub and pressurizing the hot water, motor means secured to the outer surface of the thin portion and opposing said pump means, and a magnetic coupling means for mangetically connecting said pump means and said motor means.

Abstract: A massage-action shower head comprising a housing provided with a hot water entrance, a plurality of bores through which hot water is showered and a hole through which mixture of hot water and air is jetted, a first passage line formed in said housing and being capable of communicating the hot water entrance with the plural hot water showering bores, a second passage line formed in said housing and being capable of communicating the hot water entrance with the hot water jetting hole, an air introducing means provided in said housing to supply air from outside to said second passage line, and a changeover means provided under water for communicating said hot water entrance with at least one of the first and second passage lines.

Abstract: A boring device has a spindle moving mechanism which retards a tool spindle when the spindle rotates through a predetermined angle. The mechanism has coaxial first and second thrust rings. Thrust balls are disposed between the thrust rings in rolling contact therewith. A retaining element holds the thrust balls such that they keep constant circumferential spaces therebetween. The first thrust ring is fixed to the tool spindle and has recesses in the surface facing the second thrust ring. The second thrust ring is fixed to the casing of the boring device. As the first thrust ring is rotated by the tool spindle, the thrust balls are fitted in the respective recesses, whereby the tool retards by the amount equal to the depth of the recesses. Then, cutting edges of a cutter is separated from the face of a workpiece which is being cut, and a continuous chip is broken into pieces having a predetermined length and is removed from a hole being formed.

Abstract: An outer glass pipe for a solar heat collector pipe includes an outer glass pipe body formed of a straight glass pipe being open at both ends and a lid member provided therein with a small diameter opening. An exhaust pipe of a small diameter is attached to the lid member to form a bottom member. The bottom member is air-tightly fixed to one open end of the outer glass pipe body on its peripheral edge to close one of the open ends.

Abstract: A boring device includes a casing and an upwardly biased tool spindle supported in the casing so as to move in a feed direction and a return direction opposite thereto. A first thrust ring with a track surface is disposed coaxial with the tool spindle and is fixed thereto. A second thrust ring with a track surface is also disposed coaxial with the tool spindle and fixed to the casing such that the track surfaces of the first and second thrust rings face each other. A rolling element retaining ring is provided coaxially with the tool spindle between the first and second thrust rings and has bores circumferentially arranged at predetermined angular intervals. Rolling elements are fitted in the bores of the rolling element retaining ring such that the rolling elements roll on the track surfaces of the first and second thrust rings. Receptacles complementary to the bores are formed in the track surface of the first thrust member.