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A popular example of the ascender is the jumar, named for its inventors Adolph Jüsi and Walter Marti and the Swiss firm Jümar Pangit they created to manufacture it, beginning in 1958. Jusi was studying eagles for the Swiss
Government, and desired an ascender (rather than relying on the traditional
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Ascenders are usually used in pairs so that one is free to be slid up the rope whilst the other bears the weight of the climber. The ascender which has just been slid upwards is then made to take the climber's load, locking the climber to the rope, and freeing the other one so it can then be slid
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which allows the device to slide freely in the intended direction of movement, but provide a firm grip on the rope when pulled in the opposite direction. To prevent an ascender from accidentally coming off the rope, a locking mechanism or trigger is deployed. The ascender is first attached to the
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Certain specialty forms of ascender - but not all - are capable of taking a dynamic load (as in preventing a fall), whereas the friction knot/Prusik combination may abrade the synthetic sheath of the climbing rope or sling and fuse under such extreme forces.
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Ascenders in use on a single rope on a steep mountain slope, offering the two climbers both security plus an additional aid to their upward ascent. Note that they are not roped together, but are climbing independently of one
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when climbing on steep mountain terrain. A form introduced in the 1950's became so popular it began the term "Jumar" for the device, and the verb "to jumar" to describe its use in ascending.
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The principal disadvantages of ascenders relative to the "prusiks" are weight, complexity, and possibility of failure due to coming off a rope or mechanical issue with the device.
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the leader, then follows "up the rope" without climbing the rock or ice using an ascender. Terms applying to such a second's ascent include "jumaring", "ascending", and "jugging".
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For climbing on with a fixed rope attached for security (for example, to snow anchors on a steep slope) only one ascender is used, keeping the other hand free for holding an
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Other countries, notably the United States, have also produced rope ascenders. Other names for different specialized styles of ascenders include 'ropeman' and 'tibloc'.
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Used correctly, ascenders are safe, dependable, and require less effort and dexterity of a climber than the traditional method of ascending and descending ropes using
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routes, where a climber uses only their hands and feet on the features of the rock without artificial aids to gain elevation (though mechanical aids purely for
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The first mechanical rope ascending devices were created by Henri Brenot, and were used in France both for mountaineering and caving as early as 1934.
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The climbing verb "to jumar" means to use an ascender (generically) to "climb" a rope, regardless of whether it is done in
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Ascenders can also be used as a braking component within a rope-hauling system, often used in rescue situations.
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continues to produce both handled and handleless models that are popular with mountaineers and cavers today.
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This page (archived) gives an overview on the older jumar models. A current model is still in production.
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is a device (usually mechanical) used for directly ascending, or for facilitating protection, with a
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climber's harness by a piece of webbing or sling and then is clipped onto the rope and locked on.
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Ascenders are usually used in pairs on a single rope and offer similar functionality to
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A pair of left and right handed ascenders (the left rigged to a rope)
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developed a mechanical rope ascender in 1968, and his company
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upwards too. The process is then repeated to ascend the rope.
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Devices used for ascending, braking, or protection in climbing
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19:"Jumar" redirects here. For the Brazilian footballer, see
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and short lengths of cordage (or nylon slings) known as
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Federación Española de
Deportes de Montaña y Escalada
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Cox, Steven M.; Kris
Fulsaas, eds. (September 2003).
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International
Climbing and Mountaineering Federation
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Fédération française de la montagne et de l'escalade
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Alpine climbing : techniques to take you higher
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509:"Self Rescue for Climbers 4 - Prusiking Up a Rope"
207:"protection" to assist elevation gain is allowed.
396:. Seattle, WA: Mountaineers Books. p. 86.
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487:. London: Hodder and Stoughton. p. 122.
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199:are acceptable). Instead, they are used in
1974:International Federation of Sport Climbing
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431:(7 ed.). Seattle: The Mountaineers.
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532:Modern Rope Techniques in Mountaineering
428:Mountaineering: The Freedom of the Hills
332:Single rope technique: a training manual
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234:Historic Jumar rope ascender (ca 1975)
392:Houston, Mark; Cosley, Kathy (2004).
274:1953 British Mount Everest expedition
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58:adding citations to reliable sources
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334:. Oldham: Troll Safety Equipment.
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455:Faber & Faber, London, 1951.
291:Using ascenders in to jumar up a
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915:IFSC World Championships winners
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1913:British Mountaineering Council
203:, where aids to ascending and
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536:. Cicerone Press. pp.
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360:Ron, Fawcett; Jeff, Lowe;
191:Ascenders are not used on
23:. For a similar word, see
21:Jumar José da Costa Júnior
18:
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1903:Appalachian Mountain Club
2084:Mountaineering equipment
1818:Mountain Safety Research
1813:Mountain Equipment Co-op
368:. Bell & Hyman Ltd.
69:"Ascender" climbing
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364:; Alan, Rouse (1986).
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255:Fernand Petzl
253:French caver
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242:technique of
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110:February 2013
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71: –
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65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
26:
22:
2050:
2038:
2026:
2014:
1958:USA Climbing
1858:Wild Country
1853:Therm-a-Rest
1695:
1688:
1681:
1674:
1669:The Alpinist
1667:
1649:
1642:
1635:
1628:
1621:
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1607:
1600:
1593:
1586:
1548:Campus board
1503:First ascent
1247:Ice and snow
1044:Belay device
1031:
895:Alpine clubs
855:Ropes course
768:Alpine style
531:
523:
512:. Retrieved
503:
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201:aid climbing
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116:
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
2052:WikiProject
1888:Alpine Club
1883:Access Fund
1793:Lowe Alpine
1788:La Sportiva
1525:Fall factor
1418:Self-arrest
1394:Redpointing
1317:Snow anchor
1071:Boulder mat
1020:Daisy chain
990:Terminology
981:Terminology
860:Rooftopping
802:Hillwalking
790:Dry-tooling
756:Via ferrata
669:Traditional
647:Competition
628:Multi-pitch
611:Disciplines
2068:Categories
1676:El Capitan
1440:Traversing
1389:Onsighting
1369:Glissading
1352:Dülfersitz
1347:Australian
1310:Transeiver
1255:Alpenstock
1188:Portaledge
1176:Copperhead
1115:Descenders
1049:Auto belay
840:Commercial
820:Buildering
797:Scrambling
707:Rock types
698:Top roping
635:Bouldering
547:0902363409
514:2018-03-30
494:0340229632
403:0898867495
375:0713526203
362:Paul, Nunn
318:References
293:fixed rope
197:protection
146:fixed rope
80:newspapers
1828:Patagonia
1711:Companies
1697:Hard Grit
1690:Free Solo
1558:MoonBoard
1553:Hangboard
1539:Training
1488:Guidebook
1463:Ape index
1428:Rope team
1342:Abseiling
1287:Ice screw
1193:Quickdraw
1076:Carabiner
998:Equipment
976:Technique
942:Equipment
825:Canyoning
763:Himalayan
691:Rope solo
681:Free solo
270:John Hunt
244:prusiking
205:weighting
2028:Category
1875:National
1773:JanSport
1748:Five Ten
1623:Desnivel
1616:Climbing
1595:Alpinist
1520:Exposure
1498:Chipping
1445:Tyrolean
1435:Spotting
1406:Crevasse
1384:Flashing
1374:Jumaring
1359:Belaying
1322:Snowshoe
1280:Ice tool
1270:Crampons
1120:Figure-8
1032:Ascender
900:Climbers
640:Highball
623:Big wall
588:Climbing
412:55672068
366:Climbing
164:another.
142:ascender
2040:Commons
1994:(UIMLA)
1988:(UIAGM)
1379:Leading
1296:Rescue
1275:Ice axe
1225:Camalot
1159:Lanyard
1142:Skyhook
1127:Harness
1098:Dynamic
1081:Maillon
1054:Glasses
935:Everest
926:Deaths
845:Parkour
305:prusiks
226:History
186:ice axe
94:scholar
2016:Portal
1982:(UIAA)
1976:(IFSC)
1808:Millet
1798:Mammut
1763:Grivel
1733:Deuter
1651:Summit
1535:Guides
1530:Grades
1401:Rescue
1335:Action
1237:Tricam
1203:Grigri
1149:Hammer
1103:Static
1059:Gloves
1027:Anchor
947:Brands
751:Alpine
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246:using
220:belays
216:caving
96:
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1833:Petzl
1783:Kelty
1573:Media
1508:Pitch
1473:Clean
1456:Other
1305:RECCO
1232:Shoes
1220:SLCDs
1215:Sling
1183:Piton
1132:Hooks
1110:Chalk
1037:Croll
1015:Aider
952:Knots
888:Lists
870:Slide
835:Grass
830:Crane
813:Other
785:Mixed
714:Crack
664:Sport
652:Speed
595:Types
259:Petzl
101:JSTOR
87:books
1723:CAMP
1513:Topo
1483:Beta
1411:Self
1208:Revo
1198:SLDs
1137:Fifi
1093:Cord
1066:Bolt
1007:Rock
875:Tree
850:Pole
729:Slab
724:Roof
719:Face
676:Solo
659:Free
542:ISBN
489:ISBN
457:ISBN
433:ISBN
408:OCLC
398:ISBN
370:ISBN
336:ISBN
73:news
25:Juma
1843:REI
1838:Rab
1171:Nut
1164:PAC
1154:Hex
780:Ice
618:Aid
174:cam
155:Use
140:An
56:by
2070::
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384:^
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268:,
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580:e
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117:(
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108:(
98:·
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