This machine comprises a shaft which is along a prescribed axis, a bearing which bears the shaft, a lubrication chamber which contains the shaft and the bearing and which can store a fluid lubricant, and three through-holes which each pass through a wall surface of the lubrication chamber and which can be opened, wherein: two through-holes (for example, a through-hole or a through-hole) among the three through-holes open to respective spaces on both sides of the lubrication chamber in the axial direction with the bearing sandwiched therebetween; when the lubricant is introduced, at least one of the two through-holes is open as a lubricant introduction hole; and when the lubricant is drained, the two through-holes are open as ventilation holes, and the remaining through-hole (for example, a through-hole) is open as a lubricant drainage hole.

This machine comprises a shaft which is along a prescribed axis, a bearing which bears the shaft, a lubrication chamber which contains the shaft and the bearing and which can store a fluid lubricant, and three through-holes which each pass through a wall surface of the lubrication chamber and which can be opened, wherein: two through-holes (for example, a through-hole or a through-hole) among the three through-holes open to respective spaces on both sides of the lubrication chamber in the axial direction with the bearing sandwiched therebetween; when the lubricant is introduced, at least one of the two through-holes is open as a lubricant introduction hole; and when the lubricant is drained, the two through-holes are open as ventilation holes, and the remaining through-hole (for example, a through-hole) is open as a lubricant drainage hole.

To prevent nuisance marine growth in a valve, particularly a ball valve, used to regulate a flow of seawater, a compound for lubricating and preventing nuisance marine growth is provided in the valve. The nuisance marine growth preventing compound includes a substantially uniform mixture of marine grease and an antifouling agent. The compound is introduced into the valve such that the compound is provided between and contacts a valve body and a ball that regulates the flow of seawater within the valve, and inhibits nuisance marine growth at a space between the ball and the valve body which is occupied by the compound.

To prevent nuisance marine growth in a valve, particularly a ball valve, used to regulate a flow of seawater, a compound for lubricating and preventing nuisance marine growth is provided in the valve. The nuisance marine growth preventing compound includes a substantially uniform mixture of marine grease and an antifouling agent. The compound is introduced into the valve such that the compound is provided between and contacts a valve body and a ball that regulates the flow of seawater within the valve, and inhibits nuisance marine growth at a space between the ball and the valve body which is occupied by the compound.

A flow vortex spoiler including an oil sump wherein pressurization air flow moves about the oil sump through a sump pressurization cavity, the cavity having an inlet, a circumferential plate disposed across a portion of the pressurization cavity near the inlet. The circumferential plate is disposed at said inlet to said sump pressurization cavity. The circumferential plate has a plurality of closely spaced apertures. The pressurization air has a radial component and a tangential component wherein the circumferential plate and the plurality of closely spaced apertures substantially reduce the tangential component of the pressurization air and further wherein the vortex spoiler inhibits excessive pressure change within the pressurization cavity and inhibits oil leakage at seals adjacent to the oil sump.

A flow vortex spoiler including an oil sump wherein pressurization air flow moves about the oil sump through a sump pressurization cavity, the cavity having an inlet, a circumferential plate disposed across a portion of the pressurization cavity near the inlet. The circumferential plate is disposed at said inlet to said sump pressurization cavity. The circumferential plate has a plurality of closely spaced apertures. The pressurization air has a radial component and a tangential component wherein the circumferential plate and the plurality of closely spaced apertures substantially reduce the tangential component of the pressurization air and further wherein the vortex spoiler inhibits excessive pressure change within the pressurization cavity and inhibits oil leakage at seals adjacent to the oil sump.

A bending system includes a greasing unit configured to move in a right-left direction by way of a moving operation of an external operation member and to supply grease to a sliding contact part of a tool holder, and a greasing unit holder provided on one side in a right-left direction of a table and configured to support the greasing unit. The greasing unit includes a greasing unit main body, and an application member provided on the greasing unit main body and formed in a shape corresponding to the sliding part of the tool holder, the application member being configured to be able to be impregnated with the grease.

A method for supplying compressed gas via an assembly (1) having a plurality of liquid-injected elements (6, 8) for compressing gas, wherein the method includes providing a first liquid connection between a first liquid circuit related to a first of the plurality of liquid-injected elements (6) and the second liquid circuit related to a second of the plurality of liquid-injected elements (8).

A method for supplying compressed gas via an assembly (1) having a plurality of liquid-injected elements (6, 8) for compressing gas, wherein the method includes providing a first liquid connection between a first liquid circuit related to a first of the plurality of liquid-injected elements (6) and the second liquid circuit related to a second of the plurality of liquid-injected elements (8).

This application provides a rotating shaft apparatus and a foldable-screen device. The rotating shaft apparatus includes a first primary support member, a second primary support member, a first secondary support member, and a lubrication structure. The first primary support member has a first support surface, the second primary support member has a second support surface, and the second primary support member can rotate relative to the first primary support member between an unfolded location and a folded location. The first secondary support member includes a first connection part and a first cantilever part, the first connection part is located on a side facing the second support surface and is connected to the second primary support member, the first cantilever part includes a first cantilever segment, and the first cantilever segment is located on a side facing the first support surface.