BOATSWAIN’S CHAIR [BOSUN’S CHAIR]

Boatswains chairs were originally just a piece of plank that a person sat on. These were intended to suspend a sailor to perform work aloft and evolved to raise commodores or admirals on-board of navy ships whilst at sea. This required the use of a block and tackle rigging system to provide the necessary mechanical advantage.

Modern bosun’s chairs are based on the naval officer hoisting chairs but using modern equipment and safety devices. The piece of plank has been replaced with a moulded seat made from a polymer matrix and glass fibres. The suspension system is a modern version of a block and tackle with a 4:1 reeving arrangement and fitted with a controlled descent apparatus. The person (operator) in the chair is secured to it with a built-in webbing harness.

In addition, the operator wears a conventional full body harness (PPE) with a short lanyard. A separate / independent safety line hangs down the full height of the chair’s working range onto which an inertia trip fall arrest device is fitted. These chairs are used internationally as complementary systems to suspended platforms.   

GENERAL ARRANGEMENT MODERN BOATSWAIN’S CHAIR & SAFETY DEVICES

Modern bosun’s chairs fill the gap between electrically powered Temporary Suspended Platforms and Rope Access operations. They are designed to be used by persons that need to perform work using both hands whilst in elevated positions. These persons are trained in the safe use of the system but do not need to be certified as rope access technicians. These chairs can be used on structures with heights up to 30m and fit comfortably through trapdoors in silo / tank roofs.

TYPICAL USAGE

Window cleaning        Façade maintenance
Glazing repairsPainting
Sign writingLight fittings / replacement
Structural inspections.Waterproofing work  

This Post Has 10 Comments

  1. hint filmi izle

    I have learn several just right stuff here. Certainly price bookmarking for revisiting. Belicia Myles Addam

  2. erotik izle

    Great delivery. Solid arguments. Keep up the amazing effort. Lianne Rawley Azaleah

  3. altyazili

    Now there is also the case of definitely takes the cake. Crissie Isak Soane

  4. access

    Say, you got a nice blog post. Really looking forward to read more. Really Great. Koo Grove Octavia

  5. watch

    Rather revealing, looking frontward to coming back. Mirabella Granville Andee Anallise Donal Delmor

  6. movies

    I do enjoy the way you have framed this specific situation plus it does indeed give me some fodder for consideration. Nonetheless, coming from just what I have seen, I only wish when the comments pile on that folks keep on point and in no way start upon a tirade associated with the news of the day. Yet, thank you for this superb point and whilst I can not go along with this in totality, I respect your standpoint. Liva Kevan Leoline

  7. movie online

    Some truly interesting information, well written and loosely user genial. Nissa Hayden Swanhilda

  8. movie download

    Great story, hopefully she nominated you for an Oscar? Siobhan Calhoun Ana

  9. lig tv

    I was recommended this web site by my cousin. I am not sure whether this post is written by him as no one else know such detailed about my trouble. You are incredible! Thanks! Celestine Georas Yehudit

  10. online

    Melanie looking forward to all the things you will tempt me with!! Conchita Samson Giavani

Leave a Reply