Abstract: This request is about a process for assembling recycled aggregates from construction and demolition waste, such as debris and waste generated within the construction industry, such as: bad mixtures of concrete, bricks, tiles, stones, plasters, ceramics; as well as residues from the cleaning of concrete mixers in pre-mixed plants which produce pavements, foundry slags, mortars and/or concrete. Likewise, it relates to the formulation of said aggregates and to construction products obtained through them.

Abstract: A spring cartridge for a mortise lock includes a housing adapted to be secured within the mortise lock housing, and first and second members slideable with respect to the spring cartridge housing, the first and second members each having a first end adapted to contact an outer surface of first and second spindle hubs and being independently actuable along a longitudinal axis of the spring cartridge housing in response to rotation of the first or second spindle hub. A spring retained by the spring cartridge housing contacts a second end of the first and second members to bias each of the members against the outer surface of the first and second spindle hubs, respectively. Upon rotation of one of the hubs, the member contacting the hub permits the hub to rotate, while the member contacting the other hub prevents the other hub from rotating.

Abstract: A spring cartridge for a mortise lock for engaging first and second spindle hubs rotatable by a handle to open and close a latchbolt. The spring cartridge comprises a housing adapted to be secured within the mortise lock housing, and first and second members slideable with respect to the spring cartridge housing, the first and second members each having a first end adapted to contact an outer surface of the first and second spindle hubs, wherein the first and second members are independently actuable along a longitudinal axis of the spring cartridge housing in response to rotation of the first or second spindle hub. A spring retained by the spring cartridge housing contacts a second end of the first and second members to bias each of the first and second members against the outer surface of the first and second spindle hubs, respectively. Upon rotation of one of the hubs, the member contacting the hub permits the hub to rotate, while the member contacting the other hub prevents the other hub from rotating.

Abstract: With such machine tool the tool magazine is arranged independent of the machine stand. To obtain a tool changer having a simple course of movement which, additionally, does not transmit any vibrations from the tool magazine to the work spindle, the tool changer consists of a slide or carriage which is movably arranged upon a rail. A drive is provided for the carriage for moving the latter upon the rail. The rail is attached at the tool magazine and is extended in length by an extension piece which is arranged at the machine stand.