Please select your home edition
Edition
Allen Brothers

New articulating blocks from Allen

by Ben Harden, Allen 29 Jul 00:30 PDT
A2034A – 30mm Articulating Triple Dynamic Block © Allen

Introducing a new concept for double and triple blocks from performance hardware manufacturer, Allen. The Articulating block range.

Double and triple sheaved blocks are an important part of many rigging systems, especially if you are wanting to reduce the load of a line. However, sometimes the lead angle for the rope when exiting a double or triple block isn't quite right and can cause twisting or rubbing of the rope against the cheek of the block.

To solve the problem the Allen design team have developed a simple solution which utilises existing products.

The articulating range features the normal double or triple block setup, but the spacer moulding between each cheek has been removed, as well as the central rivet which holds the blocks together. The result is a set of blocks attached to the same double or triple ultra-strap but each can articulate separately of one another.

The new articulating range was first developed with feedback from International Moth sailors who had been looking for a new solution for their internal boom mainsheet system. Since then, the range has been tested in a variety of systems and has proved to reduce overall friction.

"As each block can articulate to the correct lead angle the rope now runs more centrally on all sheaves, this reduces the friction in the system as well as making the block last longer due to the cheek not being worn away." commented Darren Elwell, Design Manager at Allen.

The articulating range is available in 20mm and 30mm sheave sizes and in double and triple options:

  • A2022A - 20mm Articulating Double Dynamic Block.
  • A2024A - 20mm Articulating Triple Dynamic Block.
  • A2032A - 30mm Articulating Double Dynamic Block.
  • A2034A - 30mm Articulating Triple Dynamic Block.
To find out more information about anything in the article please contact the Allen sales team via email or visit the Allen website.

Related Articles

Allen AutoRatchet Vs Pro-Ratchet
Which option is best for you? The ratchet block is arguably one of the most important pieces of hardware used on a sailboat. But what exactly is a ratchet block, how does it work and which option is best for you? Posted on 2 Dec
High Load Thimbles from Allen
Why, When, Where? Also known as low friction rings these handy bits of hardware are used across many different areas of a sailboat. But they're nothing new. In fact the high load thimble has been around for some time, just in slightly different forms. Posted on 19 Nov
Eco-Friendly Blocks from Allen
What one company is doing to reduce their impact on the planet COP26 is taking over news headlines around the world as countries are pledging to reduce carbon emissions and do more to reduce, reuse and recycle. So, what are we doing here at Allen to reduce our impact on the planet? Posted on 12 Nov
Allen's Latest Product Features
The inboard end batten adjuster and flanged aluminium deck bush Our newest range of flanged aluminium deck bushes feature a wider surface area with two fixing holes, allowing for a simple installation which only requires two screws and no messy bonding agent or silicone. Posted on 22 Oct
Reduce the friction in your mainsheet system
Take a look at Allen Roller Fairleads The roller fairlead is a cam cleat accessory design to remove friction from mainsheet jammers. The assembly comes with extra-long threaded bolts, which can be cut to length. Posted on 8 Oct
Allen's New Pro-Sailing Glove
A professional half finger sailing glove with reinforced Amara on palm and fingers A professional half finger sailing glove with reinforced Amara on palm and fingers to protect your hands when pulling rope. Posted on 25 Sep
One design? There's only one choice.
Allen know what hardware makes a boat go quickly! As an original equipment manufacturer to many of the world's leading one design boat builders, we know what hardware makes a boat go quickly! Posted on 17 Sep
Allen V Cleats - Simple and cost effective
One of the original methods for cleating rope The V Cleat is one of the original methods for cleating rope and to this day is still the favoured option for many applications. Posted on 3 Sep
Tii-on the best in marine hardware
Allen explain when and why Tii-ons should be used Tii-on products are quickly becoming the go to choice for many hardware fittings. So, in an article on our website we have explained when and why Tii-ons should be used. Posted on 24 Aug
Backstay Blocks and New Articulating Range
Blocks on a stainless-steel ring for sportsboat backstay systems 30mm dynamic blocks are one of the most versatile products in our range and so they are great for use in many different systems. Most recently we have started manufacturing the single version onto a stainless-steel ring for sportsboat backstay systems. Posted on 12 Aug
MBW newsletters (top)