Lock for slideable fenestration

Parts for an assembly for a fenestration, comprising:

• a movable sash;
• a sill configuration;
• wherein:
• the movable sash is configured for mounting to the sill configuration;
• and
• the mounting is so that the movable sash is vertically positionable relative to the sill configuration in an upper position and in a lower position;
• a lock assembly mountable to the movable sash, including a locking pin movable between an extended position and a retracted position;
• wherein:
• while the lock assembly is mounted to the movable sash:
• while the movable sash is mounted to the sill configuration so that the movable sash is disposed in the upper position relative to the sill configuration, the lock assembly, the movable sash, and the sill configuration are disposed in an upper position configuration;
• and
• while the movable sash is mounted to the sill configuration so that the movable sash is disposed in the lower position relative to the sill configuration, the lock assembly, the movable sash, and the sill configuration are disposed in a lower position configuration;
• and
• a fixed sash assembly configured for mounting to the sill configuration so that a mounted fixed sash configuration is established, wherein the fixed sash assembly includes:
• a fixed sash;
• and
• a keeper, the keeper being defined by an elongated aperture;
• wherein:
• the movable sash, the lock assembly, the fixed sash assembly, and the sill configuration are co-operatively configured so that, while the mounted fixed sash configuration is established, and:
• while the upper position configuration is established, the keeper is disposed relative to the lock assembly for receiving insertion of the locking pin, as the locking pin is being moved from the retracted position to the extended position, so that the movable sash becomes locked to the fixed sash assembly in a first locked configuration while the locking pin is inserted within the keeper;
• while the lower position configuration is established, the keeper is also disposed relative to the lock assembly for receiving insertion of the locking pin, as the locking pin is being moved from the retracted position to the extended position, so that the movable sash becomes locked to the fixed sash assembly in a second locked configuration while the locking pin is inserted within the keeper;
• and
• in each one of the upper position configuration and the lower position configuration, independently, while there is an absence of insertion of the locking pin within the keeper, the mounting of the movable sash to the sill configuration is with the effect that the movable sash is movable relative to the sill configuration.

Parts for an assembly for a fenestration, comprising:

• a movable sash assembly including:
• a movable sash including an access port;
• and
• a sash wheel assembly, mounted to the sash, including sash wheels and a positioning mechanism;
• a sill configuration including a track;
• wherein:
• the movable sash is configured for mounting to the sill configuration so that the sash wheels are mounted to the track of the sill configuration for movement along the track, so that the movement of the sash wheels along the track is transmitted to the movable sash, so that movability of the movable sash relative to the sill configuration is established by the mounting of the sash wheels to the track;
• a mounting bracket, including an opening, the mounting bracket mountable to the movable sash, wherein the mounting of the mounting bracket to the movable sash is such that the access port is accessible by a tool through the opening;
• a first lock counterpart mountable to the mounting bracket;
• wherein, while the mounting bracket is mounted to the movable sash, and:
• while there is an absence of mounting of the first lock counterpart to the mounting bracket, the positioning mechanism of the sash wheel assembly is accessible by the tool, through the opening of the mounting bracket and through the access port;
• while the first lock counterpart is mounted to the mounting bracket:
• the access port is occluded so that there is an absence of accessibility of the sash wheel assembly, by the tool, through the access port;
• and
• a fixed sash assembly configured for mounting to the sill configuration so that a mounted fixed sash configuration is established, wherein the fixed sash assembly includes:
• a fixed sash;
• and
• a second lock counterpart;
• wherein the first lock counterpart and the second lock counterpart are co-operatively configured for effecting locking of the movable sash assembly to the fixed sash assembly.