Angle Block Apparatus for Cable Stringing and Retention
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Solution Overview
Problem
Conventional overhead transmission and distribution systems require multiple installation and retention devices, leading to high costs and inefficiencies due to the need for specific devices for universal positions, increasing installation time and expenses for utility companies.
Innovation Solution
An angle block apparatus with a rotatable roller wheel and connector system that allows for efficient stringing and retention of cables by affixing them to a sled and trolley, enabling movement through an enclosed frame perimeter structure without requiring the trolley to pass through the angle block frame, facilitating universal installation and reducing device complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional installation devices and permanent retention devices are used separately, then cable installation can be completed, but installation time and costs increase due to multiple device exchanges
Solution Approach 1:
The patent combines the installation device and permanent retention device into a single integrated angle block apparatus. The angle block frame serves as both the installation structure and the permanent retention structure, eliminating the need to exchange between separate devices. The roller wheels are mounted directly on the angle block frame, allowing the cable to be strung and retained in one continuous operation.
Solution Approach 2:
The angle block apparatus is designed to perform multiple functions: it serves as the installation structure during cable stringing, provides guidance through its roller wheels, and becomes the permanent retention structure after installation. This multi-functional design eliminates the need for separate installation and retention devices, reducing both time and cost.
2Productivity
If multiple specific installation devices are used for different positions, then cable installation can be completed, but device complexity and costs increase
Solution Approach 1:
The angle block apparatus is designed as a universal device that can be used at various positions and angles in the cable route. Its modular frame structure and adjustable roller wheel configuration allow it to handle different installation scenarios without requiring multiple specialized devices, thereby reducing device complexity while maintaining installation efficiency.
Solution Approach 2:
The roller wheels are mounted on axles that allow them to rotate and adjust to different cable angles. This dynamic capability enables the single angle block apparatus to adapt to various installation positions and cable routing angles, replacing the need for multiple fixed-position devices.
3Reliability
If conventional retention devices are used, then cable retention is achieved, but the need for multiple specific devices for universal positions increases costs
Solution Approach 1:
The retention function is merged with the installation structure. The angle block frame with its roller wheels serves as both the installation guide and the permanent retention structure. After cable installation, the cable is retained by the same angle block apparatus that guided it during installation, eliminating the need for separate retention devices.
Solution Approach 2:
The angle block apparatus provides universal retention capability for different cable positions and angles. Its design allows it to reliably retain cables at various locations along the messenger wire without requiring position-specific retention devices, reducing device variety while maintaining retention reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The angle block apparatus streamlines the cable installation process by reducing the need for multiple devices, lowering operational costs, and enabling efficient stringing and retention of cables across various angles, thus reducing installation time and enhancing operational efficiency.
Implementation Method 1
The cable is guided through the enclosed frame perimeter structure with the at least one roller wheel
Data Source
AI summary
An angle block apparatus and method of stringing cable is provided. The apparatus includes an angle block frame having an enclosed frame perimeter structure. A rotatable roller wheel is connected to the angle block frame and positioned interior of the enclosed frame perimeter structure. A connector is affixed to the angle block frame and sized to retain the angle block frame in a substantially stationary position. The method of stringing cable includes, in part, disconnecting a sled carrying the cable from a messenger wire trolley. The sled and cable attached thereto is then moved through the angle block frame from a first side to a second side of the angle block frame. The trolley is moved from the first side to the second side of the angle block frame without going through the angle block frame. The sled is then reattached to the messenger wire trolley on the second side.