193 results about "Safety wire" patented technology

A safety apparatus for use by a worker on an elevated structure is disclosed. The purpose of the apparatus is to arrest the fall of the worker should they fall. Broadly the apparatus comprises at least two support posts having an upper end and a lower end supported on the structure and spaced apart from each other on the structure. Each support post has an I-shaped cross sectional configuration. The apparatus also includes a clamp on the lower end of each support post for clamping the post to the structure. The clamp itself comprises a base plate fast with the support post, a secondary plate or clamping plate spaced beneath the base plate, and fastening elements for drawing the two plates, towards each other with a member of the structure firmly clamped there between. The base plate projects laterally outwardly from the post on two opposed sides of the post, and defines at least one slot aperture on each said opposed side of the post through which the fastening elements are passed. Each post also has connecting formations towards the upper end thereof and an overhead safety line extending between said posts at a height of 1.7 to 2.0 metres above the member on which the posts are mounted. Each worker who works on the structure is fitted with a harness and a safety lead that can be releasably clipped to the safety line. This arrests the workers should they fall.

The invention provides a safety line which comprises a substrate (1) and a grating layer (2). The grating layer is formed on the substrate (1). Under illumination, at least partial area of the safety line is in one color; under the same illumination, after rotating the safety line in the plane thereon for certain angle, the area turns to another color; and the reconstructing light is linear polarization. Such phototropy property of the safety line is obviously different from diffraction optical variability property and interference optical variability; the public can easily distinguish; meanwhile, the polarization of the reconstructing light can be easily read by a machine when used as secondary anti-fake characteristic. The safety line is provided with the characteristics of holograph marks, printed patterns, metal hollowed patterns, magnetism and fluorescence.

A confined space entry device has modularized components which allow the device to be readily reconfigured. In particular, the extension arm of the device is removably secured to one leg of an elbow, while a post or mast is removably secured to the other end of the elbow. The other end of the mast is removably secured to a base which supports the confined space entry device. In one version of the invention, the device includes tubular members made of a polymer composite material. In another version of the invention, the elbow is asymmetric about a central axis and is formed of cast aluminum. The device can include sets of different-length elongated members which can be interchanged with elongated members secured within the device. In yet another version of the invention, the device incorporates a safety line connected to a lower end of the davit assembly or member and extending to an upper end of the davit assembly or member. The safety line should have a tensile strength equal or greater than to the dynamic rating of the post; should the member break above the lower end, the safety line would arrest the fall of a worker or person secured to the confined space device.

A safety line anchor system is provided and includes an elongate member including a threaded stud at one end for threading the member on to a threaded opening in a trench plate, a flange fixed to the stud end of the member above the stud base, the flange having two or more openings provided there through for accepting two or more stabilization bolts, a freely rotable platform attached to the end of the elongate member opposite the stud end, the platform including two or more slots cut there through for accepting safety line attachments, and a crane handle fixed to the rotable platform, the crane handle for accepting a crane hook.

A threaded anchor which comprises a threaded shank portion, a tip portion defined upon one end of the threaded shank portion, and a head portion disposed adjacent to the opposite end of the threaded shank portion. The head portion comprises a hexagonally configured drive section for threadedly driving the threaded anchor into a substrate. An axially extending lug-type projection is integrally connected to the hexagonally configured drive section of the head portion, and a transversely oriented throughbore is defined within the axially extending lug-type projection so as to accommodate any one of a structural or fixture support wire or cable, a power cable, a fiber optic or telephone cable, a turnbuckle wire assembly, a support strap, a safety or guy wires, a tie down wire or cable, and the like.

The invention discloses a short circuit prevention safety wire groove. The wire groove comprises a wire groove shell. A lower end of the wire groove shell is provided with a pipeline for arranging a line, two sides of an upper end of the wire groove shell are provided with two same driven cavities, and the upper end of the wire groove shell is provided with a transmission cavity. A heat absorbingcavity is arranged on an upper side of a pipeline, an electric wire is placed in the pipeline and a transmission mechanism for providing power for a device is arranged in the transmission cavity. Thetwo driven cavities are provided with cutting mechanisms achieving an outage effect. The driven cavity on a right side is equipped with an exhaust mechanism which has a fire extinguishing effect whenthe line is spontaneously ignited due to short circuit. During usage, the device can automatically identify a short-circuit spontaneous combustion position, and automatically cut off a short-circuitedline so that the short-circuited line is disconnected with other lines. An area is controlled in time so that fire extinguishing processing is performed, and an alarm in the area is turned on so thatthe line can be timely and conveniently maintained.

An improved safety harness and method of using same that allows for self-rescue and suspension trauma relief from either a vertical or horizontal anchor, such as a tree or an overhead beam, the safety harness having an adjustable front tie-in assembly whereby the distance between the waist strap and the thigh straps can be adjusted. The wearer is able to change from rear suspension to front suspension after a fall without the necessity of completely detaching from a safety line.

The invention discloses a cable erecting device for building electromechanical installation. The device comprises a fixing frame. A supporting frame and a hydraulic cylinder are installed on the fixing frame. The hydraulic cylinder is installed in the middle of the fixing frame. The supporting rod is matched with the supporting frame. The supporting frame is installed at one end of the fixing frame. A lifting mechanism and a buffering mechanism are installed on the supporting frame. The lifting mechanism is installed in the middle of the supporting frame. The cable fixing mechanism and the protective cover are installed on the lifting mechanism. The cable fixing mechanism is installed at one end of the lifting mechanism, the protective cover is installed at one end of the lifting mechanismand one side of the cable fixing mechanism, and the buffer mechanism is installed at one end of the supporting frame. A worker does not need to climb to a telegraph pole, the purpose of erecting thecable can be achieved only by installing the cable on the cable fixing mechanism and then controlling the hydraulic cylinder to lift the supporting frame, the safety of the worker is guaranteed, and the cable fixing mechanism can prevent the cable from being damaged and can also fix the cable and prevent the cable from falling off.

The invention discloses a portable tool for replacing a tension wire shockproof hammer in power cut, which solves the problems of high risk, complicated process and low working efficiency of the existing operation method. The tool is characterized by comprising a main insulation tube, a wire side universal hook, a cross arm side universal hook, U-shaped connection plates, a center-through fixing bolt and the like; the two ends of the main insulation tube are connected with the U-shaped connection plates through the center-through fixing bolt; spring washers are arranged in front of the nuts on the two sides of the center-through fixing bolt; and the U-shaped connection plate at one end is connected with the wire side universal hook, and the U-shaped connection plate at the other end is provided with a cross arm side safety wire connection hole and a support rod connection plate and connected with the cross arm side universal hook through a connection rod and a direction adjuster. The tool disclosed by the invention is safe to use, light in weight, convenient to transport, carry and mount, high in stability, flexible to use, convenient to operate and safe and reliable, reduces the labor intensity and operation risk of workers, improves the working efficiency, shortens the power-cut time of the line, and saves the expenses of the overhauling construction operation.

The invention discloses a composite antifalsification safety line with manufature method and application method on antifalsification paper. Wherein, the manufacture method comprises: coating thermalsol on single surface bonded by thin film and amorphous alloy wire, locating the amorphous alloy wire between thin film laye, taking thermal treatment; coating thermalsol on double surfaces on outside of thin film, drying, and forming antifalsification film; cutting the said film into antifalsification safety line with required width. This invention presents firstly and makes good use of special electromagnetic property of amorphous alloy wire, realizes in deed the three-line antifalsification for back note paper fit to look over by eyes, identify by machine and analysis by specialist.