A fire and smoke actuator includes a temperature sensor for sensing an operating temperature of the fire and smoke actuator, a drive motor, an actuator output for coupling to the damper in order to move the damper between the open position and the closed position and a drivetrain that is operably coupled between the drive motor and the actuator output. The drive motor, when activated, is configured to actuate the actuator output, via the drivetrain, to move the damper between the open position and the closed position. A drive circuit is operably coupled to the drive motor and the temperature sensor and is configured to activate the drive motor to move the damper between the open position and the closed position at a non-zero speed that is based, at least in part, on the operating temperature sensed by the temperature sensor.

A fire protection element for sealing a combustible body, which penetrates an opening in a wall or ceiling, in the event of a fire, contains a fire protection insert and a movement device which acts on the fire protection insert, the fire protection insert being arranged so as to be movable in the longitudinal direction of the opening.

A fire protection element for sealing a combustible body, which penetrates an opening in a wall or ceiling, in the event of a fire, contains a fire protection insert and a movement device which acts on the fire protection insert, the fire protection insert being arranged so as to be movable in the longitudinal direction of the opening.

A vehicle for use with an object handling system, the object handling system including two substantially perpendicular sets of rails forming a first grid, a plurality of first uprights supporting the first grid, a plurality of containers arranged in stacks, each stack being located underneath the first grid, one or more robotic load handling devices configured to drive on top of the rails of the first grid, the one or more load handling devices including means for removing or replacing at least one container from the stacks. The vehicle includes two substantially perpendicular sets of rails forming a second grid substantially at the top of the vehicle above a storage space for carrying containers. The second grid interfaces with the first grid to allow the one or more load handling devices to drive from the rails of the first grid onto the rails of the second grid.

A storage system is described where goods are stored in containers and the containers are stored in stacks. Above the stacks runs a grid network of tracks on which load handling devices run. The load handling devices take containers from the stacks and deposit then at alternative locations in the stacks or deposit then at stations where goods may be picked out. Each container may be provided with connectors having a push fit male connector located at a top edge of the container and a female connector at a bottom edge of the container. Adjacent containers in a stack can be linked by routing means, which form moldings on each container. The connectors can also have spring-loaded contacts. The provision of these services within individual containers rather than across the system as a whole, allows for flexibility in storage whilst reducing cost and inefficiency.

A fire shutter control system and a fire shutter control method capable of effectively controlling a fire shutter in the event of a fire in a building are provided. The fire shutter control system may include a fire detector configured to detect a fire outbreak and generate a fire signal in the event of a fire; a fire shutter controller configured to apply a control signal to a fire shutter to enable a drive motor for operating the fire shutter to operate when the fire signal is generated by the fire detector; and a power supply unit configured to supply power to the fire detector, the fire shutter controller, and the drive motor for operating the fire shutter.

A waterproof driving shaft includes an inner tubular member defining an accommodation space and extending along an axis, an electrical driving unit disposed in the accommodation space to actuate a movement of a moving shaft member along the axis relative to the inner tubular member. A shield unit is securely connected with the moving shaft member and seals the accommodation space to prevent moisture and humidity from entering the inner tubular member so as to prolong the service life of the driving unit.

A waterproof driving shaft includes an inner tubular member defining an accommodation space and extending along an axis, an electrical driving unit disposed in the accommodation space to actuate a movement of a moving shaft member along the axis relative to the inner tubular member. A shield unit is securely connected with the moving shaft member and seals the accommodation space to prevent moisture and humidity from entering the inner tubular member so as to prolong the service life of the driving unit.

A hot melt safety door holder device includes: a first fixing part on one side of swing end of swing door sheet; a holder with a transverse through hole and the outer hole end faces towards the first fixing part; a second fixing part in the transverse through hole, the first radial end faces towards the outer hole end of transverse through hole, the second radial end faces towards the inner hole end; a conically cylindrical space, formed between the periphery of the second fixing part and the transverse through hole, and the inside and outside diameters of the end between the transverse through hole and the second fixing part corresponding to the space tapering end of conically cylindrical space are fitted with each other. The shape of the low-melting metal material filled in the conically cylindrical space matches the shape of conically cylindrical space, resulting in equal wall thickness.

A fire barrier includes an inflatable base deployable from an empty state to a fully inflated state and a first row of panels including a plurality of first panels disposed on the inflatable base. The base supports the plurality of first panels in an upright state when the inflatable base is in the fully inflated state, thereby forming a wall having a front side and a rear side opposing the front side. Each of the plurality of panels is independently elastically bendable with respect to the inflatable base. A coating of an infrared reflective material is disposed on each of the plurality of panels on the front side of the wall.