A wet dust collecting apparatus has a housing, a suction passage formed in the housing for sucking hot dust, a water tub arranged in the housing, a mist room formed in part by water in the water tub, and further defined by a partition plate arranged downstream of a chamber associated with the sucking passage. A dust filter is arranged downstream of the mist room, and a fan sucks hot dust into the suction passage, through a comb-toothed mist generator arranged between the chamber associated with ...

A method of collecting refuse including the steps of moving a first semi-trailer having a frame carrying a refuse collection body to a transfer site and coupling it to a fifth wheel of a vehicle. Refuse is deposited into the refuse collection body by engaging a refuse container with a loading mechanism carried by one of the first semi-trailer and vehicle. The first semi-trailer is then uncoupled from the vehicle at the transfer site and a second semi-trailer is coupled to the vehicle for further...

A beam-condensing unit has a first light source, a second light source, and a condenser mirror. The first and second light sources output a plurality of first and second light fluxes arrayed along a first direction, respectively. A condenser mirror has first and second optical plates that intersect with each other. The first optical plate includes a plurality of first reflecting portions that are arrayed along the first direction and reflect the first light fluxes, respectively. The second optic...

An assembly of a slot(35) in a bottom wall (21) of a flue (10) in immediate conjunction with a compartment (25) in which a stack of layers (33) of fibrous material is deposited or stacked for absorbing grease (13) from a passageway of a venting housing (13). The vented air (14) and grease (13) flow to flue (10) by an independent force for generating such flow. As the vented air (14) and grease (15) reach flue (10) the air continues to flow through flue (10) to discharge through the latter's esca...

Statistics regarding at least one attribute (or column) of a table in a database system are collected using an enhanced mechanism for faster collection. The statistics collection is based on scanning a sample of rows of a given table, with the sample being less than all the rows of the table. The percentage of rows to be read is specified in a statement submitted to the database system. The database system then uses the specified percentage to read the sample rows from the table for collecting s...

A basketball practicing and collecting device includes a base, a first tube, a lift tube, a second tube, a third tube, a lower support rack, a backboard, a reduction motor, a drive roller, a driven roller, a frame tube, two opposite pulley members, two opposite slide seats, a pull handle, and a pull cord. Thus, the frame tube can be turned horizontally, while the ball inlet opening and the collection channel are moved and directed toward the same direction, so that the basketball falling into th...

The key collecting device comprises an upper and a lower housing each having a central base portion extending radially outwardly to form spaced spokes mutually opposite to the corresponding ones of themselves, every two of the spaced spokes opposite to each other form an operation space with the other two. The spokes have pairs of mutually opposite curved recesses mutually connected to form clamping channels for an annular ring with a notch. These housings further have a pair of mutually opposit...

A hands-free urine collecting device comprising a flexible sheet with an elastomeric element extending peripherally therearound wherein said flexible sheet is placed over a conventional toilet seat with said elastomeric member placed on the underside thereof to maintain the flexible sheet suspended above the toilet water. A recess in the flexible sheet provides access to a sample cup and is retained thereunder by looped elastic bands extending from the underside of said flexible sheet. An overfl...

Collection, transportation and storage container (10) for liquid and/or solid substances, having a container body (12) which is of double-walled form in the base and circumferential regions as a result of an inner container inserted into the outer container and continuously cylindrical from the base to the filling aperture, and has at its top a filling aperture which is of circular outline in plan view and can be hermetically sealed by a pivotable lid (14) with an annular seal. The inner contain...

A basketball practicing and collecting device includes a base containing a water bag therein, a first tube, a lift tube, a second tube, a third tube, a lower support rack, and upper support rack, a reduction motor, a drive roller, a driven roller, a frame tube, two opposite slide seats, two opposite pulley members, a pull handle, and a pull cord. Thus, the frame tube can be turned horizontally, so that the user can practice the free throw in a determined direction.