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I acquired this rack from Vladimir Kisseljov and Ilia Alexandrov at the 1994 Old Timers Reunion.
This rack is 405 mm. tall, 62 mm. wide, 21 mm. thick, and weighs 869 g. The frame is made from two pieces of 10.5 mm. stainless steel connected by a swivel assembly. The upper portion has an internal width of 35 mm., and the reverse coiled eye is 23 mm. diameter. There are six brake bars. The bars are 19 mm. in diameter and 62 mm. long. Allowing 45 mm. for the rope leaves 91 mm. range for spreading the bars.
There are no markings on this rack.
The swivel eye is not only unnecessary, it is also rather annoying. I am not sure how strong it is, and prefer not to trust it.
Thank you to Artyom Babin (Артём Бабин) for identifying this one as a Boris Laptev rack.
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I acquired this rack from William Shrewsbury in 2021. He received it from some visiting Soviet cavers around 1992.
This rack is 301 mm. tall, 62 mm. wide, 24 mm. thick, and weighs 562 g. The frame is made from 8.9 mm. plated steel bent into shape, with an internal width of 33 mm. and a 26 mm. wide welded eye. There are 6 brake bars. The top bar is 24 mm. in diameter and other bars are 19 mm. All bars are 62 mm. long. Allowing 45 mm. for the rope leaves 39 mm. for spreading the bars.
The slot end of each bar (other than the fourth) is stamped with a logo consisting of the letter "B" in front of the letter "L," both inside a circle.
This rack appears to be well made. I would like to see the bars moved so that they pivot on the spine of the rack. A user should file the unstressed side of the large bar’s hole so that the bar could pass over the top or the rack. The other bars can pass as they are.
The large bar should be the second from the top, as that is the position that receives the most heat.
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