Abstract: A three-door structure suitable for rotation type coating mixer may include an upper lid cover, symmetrically arranged front doors, a door movement support frame, and linear straight guide rails. The upper lid cover may be located at the top of the machine casing and fixedly arranged on the door movement support frame. The front doors may be symmetrically arranged on the front side of the machine casing. The linear straight guide rails may be installed on the housing of the machine casing through a guide rail fixing base. The door movement support frame may be symmetrically connected on two sides to sliding blocks arranged on the guide rails. The front doors may be connected to two sides of the door movement support frame. The lower ends front doors may be engaged with a fixing base at the bottom of the machine casing through a joining part.

Abstract: A window assembly including a frame having an interior portion with an inner surface, and a sash having an interior portion and an exterior portion. The window assembly includes an operational mode and a wash mode. In the operational mode, the sash is movable from a closed position to a position in which the sash is generally perpendicular with the frame. In the wash mode, the sash is movable to a position where the exterior of the sash faces toward the interior frame.

Abstract: A pivoting and sliding device is provided which incorporates a unique cam and frictional locking assembly. Rotation of a cam in a sliding block, slidably mounted within a track, produces lateral expansion and normal biasing of the slide block to frictionally engage four sides of the slide block with respective opposing track surfaces. A vertical or horizontal window or door sash may be pivoted out of the plane of the frame about a pair of slide blocks rigidly locked to the frame.

Abstract: A pivoting and sliding closure assembly is provided which rides in a guide channel of a frame upon a pivot shoe assembly which at one end securely pivots a closure member upon one pivot shoe when the closure is pivoted away from the channel, and which latches the closure member in a slidable position when the closure member is pivoted to its latched position. The pivot shoes are connnected together in the assembly and unique cam structures and rollers are incorporated in the assembly.