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Introduction
Octado’s countermarch action produces a perfect shed automatically
The Octado is not literally a countermarch loom although it has all the advantages of one. In
countermarch looms, the shafts move both up and down so that tension on both raised and lowered
warp threads is equal. With the Octado, as the treadle is depressed, the rising shafts move, and as
they rise, the back part of the loom also rises. This action automatically creates a shed of raised and
lowered threads that is progressively greater toward the back and therefore completely even at the
front in addition to equalizing tension on all warp threads.
Loom at rest
Progressive shed achieved during treadling
Octado treadling is very light
When a shed is formed on most looms, the activated warp threads move through a greater distance
than they do at rest. This means that the activated warp threads are under greater tension, and they
become stretched. If the warp is of an inelastic material and held at high tension, the force required
to treadle can be considerable. With the Louët Spring and Delta countermarch looms, this problem
is overcome to some degree: The breast beam moves during treadling to decrease the distance
between front and back beams, therefore decreasing the distance the through which the activated
threads move. With the Octado, the problem is completely overcome: Not only does the back part of
the loom move up, but the back beam also moves a little towards the breast beam during treadling.
This causes activated warp tension to decrease from even its resting tension—actually helping you
make the shed!
Accessories
Besides the choice of a mechanical or an electronic dobby head, you can obtain a full range of
accessories:
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Adjustable bench (59-72 cm)
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Tilting set for bench
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Second warp beam with back beam
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Sectional warping
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Flying Dutchman shuttle
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Fly shuttle device
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Treadle height adjusting blocks
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Program bars in sets of 10
Содержание Octado
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