Abstract: A charging base includes: a base seat installed on a floor surface; a columnar tower part provided on the base seat; a first support provided on the tower part and capable of supporting a vertical first electric vacuum cleaner; and a second support provided on the tower part and capable of supporting a vertical second electric vacuum cleaner. An electric vacuum cleaner system includes the charging base configured as described above, the vertical first electric vacuum cleaner, and the vertical second electric vacuum cleaner.

Abstract: In a method for mounting panel elements (B), wherein an upper (5) and a lower (6) lateral lever are mounted to an exterior wall (A) of a building so as to correspond to each of the panel elements (B); an upper (1) and a lower (6) hook are mounted on a back surface of each of the panel elements (B), the upper hook (1) being engaged with the upper lateral lever (56), the lower hook (2) being engaged with the lower lateral lever (6); and the panel elements (B) are sequentially mounted on the exterior wall (A) upward from the bottom of the same in such manner as to permit the upper (1) and the lower (2) hook to engage the upper (5) and the lower (6) lateral lever, respectively, the improvement comprises: lifting the panel elements (B) by a lifting-guide unit (40); and employing joint spaces (29) for guiding the unit (40) in a lifting operation of the panel elements (b), the joint spaces (29) being formed between the panel elements (b) having been mounted on the exterior wall (A) of the building.

Abstract: An assembly of standardized panel units is disclosed as adapted for use as a roof, comprising a series of ridge units of inverted V shaped cross section and an array of planar side units disposed on a sloping plane on each side of the series of ridge units. The vertical joints between the columns of ridge units and side units, and the horizontal joints between the rows of ridge units and side units are all watertightly closed by preformed sealing strips, rather than by the casting of a fluid sealing material, for a longer service life and the greater ease of assemblage. The preformed sealing strips have flanges forming watertight lap joints at their intersections.

Abstract: The present invention relates to a wall panel attachment apparatus for use in constructing a partition wall. This wall panel attachment apparatus comprises a pillar, a grooved wall panel, and a fitting fixture or the like. This pillar includes a panel-receiving flange projected from the top end of a plate-like portion of the pillar in the lateral direction and a joint-inserting portion having a screw-inserting groove, which is projected from the central portion of the panel-receiving flange. In this wall panel attachment apparatus, the wall panel having a groove formed on the side face thereof is disposed along the panel-receiving flange, a part of the fitting fixture is inserted in the groove of the wall panel and a screw is pressed in the above-mentioned screw-inserting groove to complete assembling.

Abstract: A connector assembly for connecting two panels edge to edge with a joint opening therebetween, each of the panels having a groove extending longitudinally along such edge thereof.

Abstract: A curtain wall construction has a plurality of panel units arranged in a checkerboard pattern, each of the panel units including a panel and a frame extending peripherally around the panel. The frames jointly provide a plurality of channels therebetween which jointly provide channel crossings where they intersect. The channels receive therein backup bars and the channel crossings receive therein backup crossings, these backup bars and crossings being made of a resilient material and the backup crossings additionally including reinforcing core wires embedded therein. A caulking compound is applied to exposed surfaces of the backup crossing and backup bars to seal the seams.

Abstract: Each of two or more posts fixedly mounted on a parapet or like stationary base structure terminates at its top end in a toprail holding portion. A top rail has its underside so shaped as to slide into the top-rail holding portions of the posts for interfitting engagement therewith when the top rail is moved longitudinally relative to the posts. The posts have aligned holes therethrough for receiving a bottom rail. A plurality of balusters for installation between the top and bottom rails also have their top and bottom ends shaped for interfitting engagement with the respective rails.

Abstract: An interlocking construction for balustrades mounted on a parapet or like foundation. The construction includes a bracket mounted on a foundation and having at its top end an arm terminating in a first locking prong and a securing member connected at its one end to the bracket and having at the other end a second locking prong. A handrail is provided with a pair of spaced-apart locking means such as grooves or prongs each extending along the handrail. The first and second locking prongs engage the locking means to grip the handrail in place on the bracket arm and the bracket-mounted securing member.

Abstract: In a window assembly having a pair of sashes mounted within a supporting frame for relative horizontal movement, each sash is integrally provided with a pair of opposed rims defining an outwardly open channel along each of its top and bottom horizontal members and along one of its side vertical members which is to be held against one of the jambs of the supporting frame upon closure of the sash. When the sashes are moved to their closed positions, a plurality of vertical rolls mounted in selected positions inside the channels of each sash ride on respective raised roll seats formed on stationary flanges intruding into the respective channels from the supporting frame. Upon resulting lateral displacement of the sashes relative to the supporting frame, sealing strips also arranged internally of the channels become pressed against the flanges.