A strut insulator for an overhead rail contact system includes a first end fitting, the first end fitting defining an inner side pocket, and a second end fitting spaced from the first end fitting, the second end fitting defining an inner side pocket. The strut insulator further includes a rod extending between the first end fitting and the second end fitting and extending into the inner side pockets of the first and second end fittings, the rod defining a length. The strut insulator further includes a shell surrounding a portion of rod, the shell extending along a portion of the length of the rod, the shell formed from a fluoropolymer.

A system for supplying power to a trolley chain. The system includes: a trolley chain, consisting of at least two trollies coupled with one another, wherein the trolley chain has a closed bus; and a stationary energy conductor along the track of the trolley chain. The stationary energy conductor consists of one or more successive segments, which are spaced apart from each other. The closed bus has several transmission heads, which are designed to supply the closed bus with electricity from the stationary energy conductor without contacting the stationary energy conductor, if they are within a pre-determined distance to the stationary energy conductor. During a journey of the trolley chain along the track, at each moment in time, at least one of the transmission heads supplies the closed bus with electricity from the stationary energy conductor.

A system for supplying power to a trolley chain. The system includes: a trolley chain, consisting of at least two trollies coupled with one another, wherein the trolley chain has a closed bus; and a stationary energy conductor along the track of the trolley chain. The stationary energy conductor consists of one or more successive segments, which are spaced apart from each other. The closed bus has several transmission heads, which are designed to supply the closed bus with electricity from the stationary energy conductor without contacting the stationary energy conductor, if they are within a pre-determined distance to the stationary energy conductor. During a journey of the trolley chain along the track, at each moment in time, at least one of the transmission heads supplies the closed bus with electricity from the stationary energy conductor.

A section disconnect device for a contact line assigned in particular to railborne vehicles as overhead line and carrying high voltage, having a single section arrangement (10) with multiple line sections extending, such that it is tensioned or can be tensioned, between two contact-wire connecting heads (12, 14) and provided with insulator means (36, 38), which line section arrangement is constructed such that it can be mounted by means of respective accommodating sections (66) of the contact-wire connecting heads in an electrically and mechanically contacting manner between exposed ends (16, 18) of the contact line, as a result of which at least one of the contact-wire connecting heads (12, 14) has adjustable level equalization means (66, 68, 70) for interacting with a head-side end (20, 24) of the line section arrangement (10), which are constructed in such a manner that, with respect to a current collector contact, in particular a current-collector-contact side of the contact line and/or a current-collector-contact plane, the free end of the contact line can be brought into a common plane with the end of the line section arrangement and/or seamlessly aligned with the same.

A section disconnect device for a contact line assigned in particular to railborne vehicles as overhead line and carrying high voltage, having a single section arrangement (10) with multiple line sections extending, such that it is tensioned or can be tensioned, between two contact-wire connecting heads (12, 14) and provided with insulator means (36, 38), which line section arrangement is constructed such that it can be mounted by means of respective accommodating sections (66) of the contact-wire connecting heads in an electrically and mechanically contacting manner between exposed ends (16, 18) of the contact line, as a result of which at least one of the contact-wire connecting heads (12, 14) has adjustable level equalization means (66, 68, 70) for interacting with a head-side end (20, 24) of the line section arrangement (10), which are constructed in such a manner that, with respect to a current collector contact, in particular a current-collector-contact side of the contact line and/or a current-collector-contact plane, the free end of the contact line can be brought into a common plane with the end of the line section arrangement and/or seamlessly aligned with the same.

The present embodiments relate to a trolley system for a camera dolly. The system comprising at least one trolley comprising a power drive for driving the trolley in both a forward and reverse direction, a cable handling and a storage arrangement; a station for operative connection to the at least one trolley; one cable connecting the station and the at least one trolley; a power device for supplying power to the trolley; and at least one rail adapted to receive the at least one trolley, the at least one rail comprising at least one rail recess, and the cable handling and storage arrangement is adapted to deploy the at least one cable in the at least one rail recess as the trolley moves away from the station and take up the at least one cable from the at least one rail recess as the trolley moves toward the station.

The present embodiments relate to a trolley system for a camera dolly. The system comprising at least one trolley comprising a power drive for driving the trolley in both a forward and reverse direction, a cable handling and a storage arrangement; a station for operative connection to the at least one trolley; one cable connecting the station and the at least one trolley; a power device for supplying power to the trolley; and at least one rail adapted to receive the at least one trolley, the at least one rail comprising at least one rail recess, and the cable handling and storage arrangement is adapted to deploy the at least one cable in the at least one rail recess as the trolley moves away from the station and take up the at least one cable from the at least one rail recess as the trolley moves toward the station.

An electrified road transport system includes a contact line system having a plurality of masts with support cables and contact wires suspended thereon. The contact line system has structural modifications for reducing the horizontal and/or vertical positional tolerances of the contact wires. In the context of the structural modifications, section separators are fastened directly to masts or to cantilevers of the masts, skewed overhead lines are disposed in straight section segments and/or in curves, and the support cables and/or contact wires have smaller cross-sections and/or higher longitudinal tensile forces. A method for stabilizing a contact line system of an electrified road transport system is also provided.

An electrified road transport system includes a contact line system having a plurality of masts with support cables and contact wires suspended thereon. The contact line system has structural modifications for reducing the horizontal and/or vertical positional tolerances of the contact wires. In the context of the structural modifications, section separators are fastened directly to masts or to cantilevers of the masts, skewed overhead lines are disposed in straight section segments and/or in curves, and the support cables and/or contact wires have smaller cross-sections and/or higher longitudinal tensile forces. A method for stabilizing a contact line system of an electrified road transport system is also provided.

An anti-loosening endcap for utility crossarm comprising an endcap body inserted into the crossarm, where a channel perpendicular to an inner wall of the crossarm is disposed inside the endcap body, one end of the channel is open, the pointed head pin is slidably disposed in the channel, the pointed head of the pointed head pin faces the inner wall of the crossarm, the endcap is further provided with an axial through passage, the passage and the channel intersect at the tail portion of the pointed head pin, and the corresponding pin is provided for the passage. The pin is driven into the passage, and the pin presses the tail portion of the pointed head pin, so that the pointed head of the pointed head pin pierces the inner wall of the crossarm, thereby providing a locking effect.