Vessel transfer systems are provide herein. The systems include bogies, including a pivoting bogie and a rack and pinion bogie, as well as associated cradles, carriages, and power and control units. The pivoting bogie includes a first side frame, a second side frame, at least one wheel coupled with each of the first and second side frames, and a lift member coupled with each of the first and second side frames. The lift member is pivotably coupled to the first side frame. The rack and pinion bogie includes a frame and pinion gears coupled with the frame. The pinion gears can be selectively coupled with a gear rack, such as at a shipyard. Also provided herein are methods of use of one or both of the bogies and associated equipment, such as for moving vessels within a shipyard.

An apparatus, system, and method for conveying an assembly along a track. A rail can include a first planar side, a second planar side, and a third planar side. The first, second, and third planar sides can be arranged to form at least two acute angles. A carriage assembly can include a drive wheel and at least two roller sets. The drive wheel can be configured to contact the first planar side and is configured to translate the carriage assembly along the rail. The at least two roller sets can be configured to contact the two other sides to maintain the carriage in contact with the rail.

An apparatus, system, and method for conveying an assembly along a track. A rail can include a first planar side, a second planar side, and a third planar side. The first, second, and third planar sides can be arranged to form at least two acute angles. A carriage assembly can include a drive wheel and at least two roller sets. The drive wheel can be configured to contact the first planar side and is configured to translate the carriage assembly along the rail. The at least two roller sets can be configured to contact the two other sides to maintain the carriage in contact with the rail.

The present disclosure relates to a method for constructing a penstock. A path of the penstock to be dug along a central axis of a hydro-electric site within a rock mass is planned. A lower shaft is excavated, the lower shaft intersecting the path of the penstock. A starting station extending from the lower shaft and from a bottom of the path of the penstock is excavated. The penstock is excavated. An arrival station is excavated and is overhanging above a top of the penstock. An expansion chamber broadening a width of the penstock and broadening a width of the lower shaft near the bottom of the path of the penstock is excavated. A hydro-electric site comprising the penstock is also disclosed.

The present disclosure relates to a method for constructing a penstock. A path of the penstock to be dug along a central axis of a hydro-electric site within a rock mass is planned. A lower shaft is excavated, the lower shaft intersecting the path of the penstock. A starting station extending from the lower shaft and from a bottom of the path of the penstock is excavated. The penstock is excavated. An arrival station is excavated and is overhanging above a top of the penstock. An expansion chamber broadening a width of the penstock and broadening a width of the lower shaft near the bottom of the path of the penstock is excavated. A hydro-electric site comprising the penstock is also disclosed.

A track system may include a track assembly and a support assembly. A track assembly may include a toothed portion. The support assembly may include a support member removable from and adjustably connected to the track assembly. The toothed portion may include a plurality of track teeth. The support member may include an adjuster pinion. The adjuster pinion may include a plurality of pinion teeth configured to engage the plurality of track teeth. The adjuster pinion may be adjustable to an engaged position in which the adjuster pinion and the toothed portion are engaged with one another. The adjuster pinion may be adjustable to a disengaged position in which the adjuster pinion and the toothed portion are not engaged with one another.

A track system may include a track assembly and a support assembly. A track assembly may include a toothed portion. The support assembly may include a support member removable from and adjustably connected to the track assembly. The toothed portion may include a plurality of track teeth. The support member may include an adjuster pinion. The adjuster pinion may include a plurality of pinion teeth configured to engage the plurality of track teeth. The adjuster pinion may be adjustable to an engaged position in which the adjuster pinion and the toothed portion are engaged with one another. The adjuster pinion may be adjustable to a disengaged position in which the adjuster pinion and the toothed portion are not engaged with one another.

An apparatus, system, and method for conveying an assembly along a track. A rail can include a first planar side, a second planar side, and a third planar side. The first, second, and third planar sides can be arranged to form at least two acute angles. A carriage assembly can include a drive wheel and at least two roller sets. The drive wheel can be configured to contact the first planar side and is configured to translate the carriage assembly along the rail. The at least two roller sets can be configured to contact the two other sides to maintain the carriage in contact with the rail.

An apparatus, system, and method for conveying an assembly along a track. A rail can include a first planar side, a second planar side, and a third planar side. The first, second, and third planar sides can be arranged to form at least two acute angles. A carriage assembly can include a drive wheel and at least two roller sets. The drive wheel can be configured to contact the first planar side and is configured to translate the carriage assembly along the rail. The at least two roller sets can be configured to contact the two other sides to maintain the carriage in contact with the rail.

An anchor for a support member of a track system may include an anchor body, a toothed anchor portion, and an anchor member. The anchor body may be connectable to said support member. The toothed anchor portion may include a plurality of anchor teeth configured to engage a plurality of track teeth of a toothed portion of a track assembly. The anchor member may be configured to facilitate engagement of the plurality of anchor teeth and said plurality of track teeth. The anchor body, the toothed anchor portion, and the anchor member may be connected to one another to collectively form a hook portion configured to engage said toothed portion of said track assembly.