Abstract: The wait water collection system provided herein may be used to reducing the amount of water wasted while a shower, for example, warms up. The wait water collection system may include a hot water input carrying hot water to the system. The hot water may or may not be “hot” when delivered by the hot water input and may need to “warm up.” The wait water collection system may include a thermal diverter on a water line where the hot water travels, which may adjust based on whether the temperature of the hot water meets a temperature threshold. If the water does not meet the temperature threshold, then the hot water may be delivered to an expansion vessel. If the water meets or exceeds the temperature threshold, then the hot water may be delivered to a mixer valve for providing the water to a user.

Abstract: A stator for a rotating electrical machine is disclosed, the stator comprising a plurality of stator slots (22) each of which accommodates a plurality of coils (40) of stator windings (18). Radial air gaps (46) are present between the coils of adjacent stator slots as the coils extend out of the stator slots. Insulating means (42, 54, 84) are provided between the coils of a stator slot as the coils extend out of the stator slot. The radial air gaps (46) are defined between the insulating means of the coils of adjacent stator slots. This can allow radial air passages to be formed through the windings, while ensuring sufficient electrical insulation between the coils of a stator slot.

Abstract: Disclosed are various embodiments for providing an item purchase experience for users wishing to repeat purchases of items when previously purchased items are out-of-stock or otherwise temporarily unavailable. Alternative items are identified for an item that is determined to be unavailable. A user interface is generated to include a listing of previously purchased items, including an item listing for the unavailable item. The item listing for the unavailable item further includes the alternative items for display and user interaction.

Abstract: Disclosed are various embodiments for providing a continued item purchase experience for users wishing to repeat purchases of items when previously purchased items have been discontinued or are no longer available. A replacement item is identified for an item that is determined to be discontinued. The interaction history of the discontinued item is associated with the replacement item. A user interface is generated to include a listing of previously purchased items, including the replacement items that are arranged in a particular order. The replacement item is arranged in the user interface according to the interaction history of the discontinued item.

Abstract: A stator for a rotating electrical machine is disclosed, the stator comprising a plurality of stator slots (22) each of which accommodates a plurality of coils (40) of stator windings (18). Radial air gaps (46) are present between the coils of adjacent stator slots as the coils extend out of the stator slots. Insulating means (42, 54, 84) are provided between the coils of a stator slot as the coils extend out of the stator slot. The radial air gaps (46) are defined between the insulating means of the coils of adjacent stator slots. This can allow radial air passages to be formed through the windings, while ensuring sufficient electrical insulation between the coils of a stator slot.

Abstract: An axial flux rotating electrical machine is disclosed, which comprises a stator sandwiched between two rotors. The machine comprises retention means for retaining magnets on the rotor, the retention means comprising a back plate with a plurality of protrusions which define a plurality of pockets for accommodating the magnets. The retention means is arranged such that the magnets can be inserted into the pockets and held therein, and the retention means with inserted magnets can be fixed to a rotor so as to retain the magnets axially and tangentially. A cooling jacket for the stator, and techniques for securing the stator to the machine, are also disclosed.