There are a number of interesting devices that
I've collected over the years. There is no real pattern to what
I've collected: all of this is peripheral to my main interest
in ascenders and descenders. Briefly, the categories are as follows:
Brakes (a.k.a. Dissipators)
- Shock absorbers for climbing anchors that
have metal parts (i.e., you won't find the Yates Screamer here).
- Brake Tubes
- Lowering spools for rescue use.
- Chest Boxes
- Single roller chest boxes for rope walker
systems (etc.), and double-channel boxed for Mitchell Systems
- Dynamic Cow's Tails
- Dynamic cow's tails incorporate
a shock absorber of some form so that the forces generated in
anchored falls (such as on via ferrata) are reduced to within human tolerance.
- Flipline Adjusters
- Flipline adjusters are arborist tools, some of which function much like ascenders and could probably be used as such.
- Grappling Hooks
- Don't trust your life to a grappling hook!
- I don't collect basic pulleys, but I have
a few hauling pulleys that have integral cams. Some of these
are for rescue use, others are for "more productive"
uses like big wall climbing.
- Safety devices for people that don't trust their own abilities.
- Rope Grabs
- Industrial safety devices that often look like
ascenders, but are usually far too heavy for that. Some ascenders
are used as industrial rope grabs; these are listed in the ascender
section. I decided to place the rope grabs into the following three types:
- Most Miscellaneous
- Dynamic cows tails, décrocheurs, grappling
hooks, and other things that don't even fit in as normal miscellanea.
A word on the tables…
The tables include some numerical data:
|| This is
just my catalog number so that I can keep these straight
|| Weights are in grams.
Webbing, slings, etc. are not included.
|| I've given the dimensions
in millimeters. The measurements are in perpendicular directions.
I've chosen to measure the maximum dimensions instead of the
most obvious dimensions. Sometimes this leads to numbers that
are more than what you would expect - for example, the thickness
of a bent plate would be more than the thickness of the unbent
|| The standard volume
is just the product of the height, width, and thickness divided
by 1000. This gives a volume in milliliters of a box that the
device will fit into. Odd shaped devices are penalized by this
formula, but since they are generally harder to pack, this number
might be useful.