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Caving Supplies

Long Short
Long Short

Overview


Long
(#1143)

Front View Rear View Side View
Front View Rear View Side View

Technical Details

I acquired this Caving Supplies rack used on eBay from Dave Metcalfe in 2008.

This rack is 360 mm. tall, 66 mm. wide, and 20 mm. thick. Mine weighs 690 g. The frame is made from 9.5 mm. stainless steel bent into shape, with an internal width of 29 mm. and a 24 mm. diameter reverse-coiled eye. There are six unfinished aluminum alloy brake bars. The bars are 19 mm. in diameter, 70 mm. long, and have straight slots. Allowing 45 mm. for the rope leaves 27 mm. for spreading the bars.

There are no markings on this rack.

Comments

The reverse-coiled eye is characteristic of Caving Supplies racks, although the coil direction seems to have no functional significance, it does allow a complete loop closure while leaving only a single pass at the base of the eye where one clips in. Unlike the bars on the caving supplies short rack, these bars have straight slots and lack the turned guide groove.


Short
(#540)

Front View Rear View Side View
Front View Rear View Side View

Technical Details

I acquired this Caving Supplies rack from Alpinist & Globetrotter at the International Congress of Speleology in 1997.

This rack is 277 mm. tall, 61 mm. wide, and 26 mm. thick. It weighs 501 g. The frame is made from 9.5 mm. stainless steel bent into shape, with an internal width of 29 mm. and a 27 mm. diameter reverse-coiled eye. There are six unfinished aluminum alloy brake bars. The bars are 19 mm. in diameter and 60 mm. long. The center section of each bar is turned down to 17 mm. diameter to help guide the rope. Allowing 45 mm. for the rope gives a 27 mm. for spreading the bars.

There are no markings on this rack.

Comments

Like all short racks, this one functions essentially like a constant friction device.

If you noticed that something looks funny in the picture, you have a keen eye. The top and third bars are drilled, not slotted; the second and fourth bars have straight slots, and the bottom bar has an angled slot. I dislike straight slots. Some people like them because they feel a need to have a reminder how to rig a rack, but I find that they flop around too much when not on rappel - and that is annoying.