An uppermost cover member of a telescopic cover is fixed to a movable member (a saddle or a table), whereas a lowermost cover member of the telescopic cover is fixed to a stationary member (a pedestal or the saddle) of a machine tool, the stationary member being stopped with respect to a direction of movement of at least the movable member. Attached members, which project outwardly along the direction of movement from the telescopic cover, and which are attached by fastening members to the stationary member, are provided on the cover member. The telescopic cover is provided with a skirt, which is capable of sliding along the direction of movement with respect to the cover member, and which covers the attached members.

A gate comprises a spring-loaded hinge arrangement defining a rotational axis. A gate structure having a first support arm connected to a first end of the hinge arrangement is also provided. The gate structure is rotatable about the rotational axis. A spring-loaded hinge arrangement includes an outer hinge tube fixedly connectable to an adjacent structure and an inner hinge tube received in the outer hinge tube. The inner hinge tube has a first portion and a second portion movable with respect to each other, the second portion of the inner hinge tube being fixed with respect to the outer hinge tube and the first portion of the inner hinge tube being fixed with respect to the support arm.

A telescopic mechanism and corresponding method for opening and closing sliding doors which allows obtaining a dimensional gain equal to the diameter of the pulleys including an intelligent control board, a motor, a system of pulley and belt linear guides which connect the panel A to Panel B, a lever system, arms, rotary union, shaft of rotation, which originate movements of extension and compression of a sliding structure comprising a chassis, Panel A and Panel B. The belt and pulley system includes a belt, a brake, wheels movable pulleys fixed to the chassis and static pulleys.

A window is described, comprising a frame, a sash, a window pane mounted in the sash, a computer system, the computer system comprising a housing, the housing configured to be mounted into a receiving area of the frame, into the sash, into a window valence, or into a window casing. A processing device is located within the housing. Non-transitory memory located within the housing configured to store instructions to be executed by the processing device, a network interface, at least a first sensor fixed to the casing, frame, or window pane, the first sensor coupled to the computer system, wherein the computer system is configured to take at least a first action in response to at least a first sensor reading from the first sensor.

A window is described, comprising a frame, a sash, a window pane mounted in the sash, a computer system, the computer system comprising a housing, the housing configured to be mounted into a receiving area of the frame, into the sash, into a window valence, or into a window casing. A processing device is located within the housing. Non-transitory memory located within the housing configured to store instructions to be executed by the processing device, a network interface, at least a first sensor fixed to the casing, frame, or window pane, the first sensor coupled to the computer system, wherein the computer system is configured to take at least a first action in response to at least a first sensor reading from the first sensor.

A window is described, comprising a frame, a sash, a window pane mounted in the sash, a computer system, the computer system comprising a housing, the housing configured to be mounted into a receiving area of the frame, into the sash, into a window valence, or into a window casing. A processing device is located within the housing. Non-transitory memory located within the housing configured to store instructions to be executed by the processing device, a network interface, at least a first sensor fixed to the casing, frame, or window pane, the first sensor coupled to the computer system, wherein the computer system is configured to take at least a first action in response to at least a first sensor reading from the first sensor.

A window is described, comprising a frame, a sash, a window pane mounted in the sash, a computer system, the computer system comprising a housing, the housing configured to be mounted into a receiving area of the frame, into the sash, into a window valence, or into a window casing. A processing device is located within the housing. Non-transitory memory located within the housing configured to store instructions to be executed by the processing device, a network interface, at least a first sensor fixed to the casing, frame, or window pane, the first sensor coupled to the computer system, wherein the computer system is configured to take at least a first action in response to at least a first sensor reading from the first sensor.

A gate comprises a spring-loaded hinge arrangement defining a rotational axis. A gate structure having a first support arm connected to a first end of the hinge arrangement is also provided. The gate structure is rotatable about the rotational axis. A spring-loaded hinge arrangement includes an outer hinge tube fixedly connectable to an adjacent structure and an inner hinge tube received in the outer hinge tube. The inner hinge tube has a first portion and a second portion movable with respect to each other, the second portion of the inner hinge tube being fixed with respect to the outer hinge tube and the first portion of the inner hinge tube being fixed with respect to the support arm.

A sliding door assembly includes a door frame with a top trim member, a bottom sill, and side jambs connected between the top trim member and the bottom sill, and a primary sliding panel secured in the door frame. The top trim member includes a track configured to support a weight of the primary sliding panel and prevent the primary sliding panel from coming off the track. Other features include an interlock mechanism to limit relative movement using multiple sliding doors and a brake mechanism to secure the doors in position when the door handle is released. A drop window includes features to accommodate for manufacturing tolerances and box frame assemblies that are out of square.

A safety gate has a main body, a connecting tube, and a first elastic piece. The main body has two first rods and two second rods, and the two second rods are perpendicular to the two first rods. The connecting tube is mounted on the first rods. The first elastic piece has two first functional sides. At least one of the first functional sides is formed on a top surface of the first elastic piece, the two first functional sides abut an inner surface of the end portion, and a first protruding portion is mounted through a connecting hole of the second rod and a joining hole of the connecting tube.