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Type 1 Lever Cam Ascenders

In elementary school science we all learned that a type 1 lever has the fulcrum between the load and the applied force, so it made sense for me to define a Type 1 Lever Cam Ascender as one where the pivot was between the sling and the rope.

There are so many variations of the Gibbs ascender in my collection that I list them in a number of separate tables, with closely-related versions grouped together, and then list the remainder in a longer table at the end. A gray background in the weight column indicates a stainless steel shell and rust-brown a steel frame.

Gallery


Gibbs Ascenders

1/2" Spring-wire Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs spring-wire, Version A 128 Gibbs spring-wire, Version A Stamped Al U-frame, cast cam, pin axle /w nylon keeper and retainer. One of the first 50 made. NSS Auction, 1998 148 103 64 36 237
Gibbs spring-wire, Version B 61
252
2248
Gibbs spring-wire, Version B Stamped Al U-frame, original cast cam, pin axle /w spring-wire keeper and retainer
  • 1980s?
  • Bill Boehle, 2008
  • Bob Thrun Collection, 2017
152 103 64 36 237
Gibbs spring-wire, Version B (modified) 253 Gibbs spring-wire, Version B
(modified)
Stamped Al U-frame, original cast cam (cut tip), pin axle /w springwire keeper and retainer Bill Boehle, 2008 144 103 63 37 237
Gibbs Springwire, Version C 1521
1977
Gibbs Springwire, Version C Stamped Al U-frame, cast ribbed "racing" cam, pin axle /w springwire keeper and retainer
  • Myra Nicholas, 2009
  • David Jones, 2014
150 103 59 36 237
Gibbs spring-wire, Version D 62
1978
Gibbs spring-wire, Version D Stamped Al U-frame, cast ribbed "racing" cam, pin axle /w spring-wire keeper and retainer
  • John E. Weinel, Inc., 1989
  • David Jones, 2014
155 104 59 37 227
Gibbs spring-wire, Version E 63
1548
2244
Gibbs spring-wire, Version E Stamped Al U-frame, cast cam /w cord keeper, pin axle /w spring-wire keeper and retainer
  • Gibbs Products Inc., 1973
  • J. W. Jackson, 2011
  • Bob Thrun Collection, 2017
182 104 59 36 221


1/2" Quick-release Pin Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs QR. Version A 209
224
1929
2258
Gibbs QR. Version A Stamped Al U-frame, cast Al cam on cord keeper, QR pin axle on chain keepers
  • Thomas Kopp, 2007
  • Richard Briggs, 2007
  • NSS Consignemnt Sales, 2011
  • Bob Thrun Collection, 2017
182 103 58 57 338
AscenderImages/T1LeverCamImages/DSC0209_9366.JPG 65
286
1543
1930
Gibbs QR, Version B Stamped Al U-frame, cast Al cam on web keeper, QR pin axle on chain keepers
  • Unknown, 1970s
  • Henderson L. Holman IV, 2009
  • Phillip Harris, 2010
  • Barbara Anne Am Ende, 2012
182 104 58 57 344
2047 Gibbs QR, Version C Stamped Al U-frame, hard-coated cast Al cam on web keeper, QR pin axle on chain keeper CarolJo Rushin-Elron, 2016 175 104 58 57 341
2046 Gibbs QR, Version D Stamped Al U-frame, hard-coated cast Al cam on web keeper, QR pin axle on chain keeper Bob Thrun Collection, 2017 286 104 59 57 346
2045 Gibbs QR, Version E Stamped SS U-frame, hard-coated cast Al cam on web keeper, QR pin axle on chain keeper CarolJo Rushin-Elron, 2016 289 103 58 57 340
2042 Gibbs QR, Version F Stamped Al U-frame, hard-coated cast Al cam on web keeper, QR pin axle on chain keeper Bob Thrun Collection, 2017 179 104 59 57 346
2046 Gibbs QR, Version G Stamped Al U-frame, hard-coated cast Al cam on web keeper, QR pin axle on chain keeper CarolJo Rushin-Elron, 2016 173 103 58 57 340
Gibbs QR, Version F 1918 Gibbs QR, Version H Stamped SS U-frame, hard-coated cast Al cam, QR pin axle on cable keeper, web cam keeper on teardrop Speleoshoppe, 2012 284 103 59 57 345
Gibbs QR, Version F 2317 Gibbs QR, Version I Stamped SS U-frame, punched Al cam, QR pin axle on cable keeper on teardrop, web cam keeper On Rope 1, 2017 313 104 71 63 461
Gibbs QR, Version G 66
113
Gibbs QR, Version J Stamped Al U-frame, hard-coated cast Al cam, QR pin axle on cable keeper
  • Unknown
  • Geary Schindel, 1992
178 104 60 57 356
Gibbs QR, Version H 1916 Gibbs QR, Version K Stamped Al U-frame, hard-coated cast Al cam, QR pin axle on cable keeper, web cam keeper on teardrop Hawill's Ltd., 2012 192 104 57 57 339
Gibbs QR, Version I 1561 Gibbs QR, Version L Stamped Al U-frame, hard-coated cast Al cam, QR pin axle, web keeper Robert Bowman, 2012 163 104 58 57 341
Gibbs QR, Version J 1511 Gibbs QR, Version M Stamped Al U-frame, hard-coated cast Al cam, QR pin axle, web keepers Ben North, 2009 167 104 58 57 340
Gibbs #1 205
2247
Gibbs #1 Stamped Al U-frame, hard-coated cast Al cam, QR pin axle on web keeper
  • Inner Mountain Outfitters, 2006
  • Bob Thrun Collection, 2017
193 103 77 63 501


1/2-inch Spring-loaded Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs QR Spring Loaded, Version A 67
2243
Gibbs QR Spring Loaded, Version A Stamped Al U-frame, 2-coil spring loaded, cast Al cam, QR pin axle on chain keeper
  • 1970s
  • Bob Thrun Collection, 2017
186 104 71 57 421
Gibbs QR Spring Loaded, Version B 262 Gibbs QR Spring Loaded, Version B Stamped Al U-frame, coil spring loaded, hard-coated cast Al cam, QR pin axle, chain keepers & pull Gene Clinger, 2008 189 104 71 57 421
2048 Gibbs QR Spring Loaded, Version C Stamped SS U-frame, coil spring loaded, cast Al cam, QR pin axle, chain keepers & pull CarolJo Rushin-Elron, 2016 293 104 70 57 415
Gibbs QR Spring Loaded, Version C 77
261
Gibbs QR Spring Loaded, Version D Stamped Al U-frame, coil spring loaded, cast Al cam, QR pin axle, chain keepers & pull
  • Unknown
  • Gene Clinger, 2008
197 104 72 57 427
Gibbs QR Spring Loaded, Version D 2245 Gibbs QR Spring Loaded, Version E Stamped Al U-frame, coil spring loaded, cast Al cam, QR pin axle, chain keepers & pull Bob Thrun Collection, 2017 192 103 71 57 417
Gibbs QR Spring Loaded, Version D 2253 Gibbs QR Spring Loaded, Version F Stamped Al U-frame, coil spring loaded, cast Al cam, QR pin axle, chain keepers & pull Bob Thrun Collection, 2017 179 103 72 57 421
Gibbs QR Spring Loaded, Version D 75 Gibbs QR Spring Loaded, Version G Stamped Al U-frame, wire spring loaded, hard-coated cast Al cam, QR pin axle on chain keeper Unknown 182 104 70 57 415
Gibbs QR Spring Loaded, Version E 1921 Gibbs QR Spring Loaded, Version H Stamped SS U-frame, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on chain keeper Speleoshoppe, 2012 297 104 71 57 417
Gibbs QR Spring Loaded, Version F 1922 Gibbs QR Spring Loaded, Version I Stamped SS U-frame, wire spring loaded, spring cover, soft punched Al cam, QR pin axle on cable keeper Speleoshoppe, 2012 334 104 71 63 461
Gibbs QR Spring Loaded, Version G 1923 Gibbs QR Spring Loaded, Version J Stamped SS U-frame, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on cord keeper Speleoshoppe, 2012 337 107 71 69 517
Gibbs QR Spring Loaded, Version H 1510 Gibbs QR Spring Loaded, Version K Stamped SS U-frame, wire spring loaded, hard-coated cast Al cam, QR pin axle on cable keeper Sheryle Bauer, 2009 337 103 72 63 466
Gibbs QR Spring Loaded, Version I 263
1509
Gibbs QR Spring Loaded, Version L Stamped Al U-frame, wire spring loaded, hard-coated cast Al cam, QR pin axle on cable keeper
  • Ronald Krieger, 2008
  • Sheryle Bauer, 2009
180 104 70 57 419
Gibbs QR Spring Loaded, Version J 2254 Gibbs QR Spring Loaded, Version M Stamped Al U-frame, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on cable keeper Bob Thrun Collection, 2017 187 103 72 65 477
Gibbs QR Spring Loaded, Version J 71 Gibbs QR Spring Loaded, Version N Stamped Al U-frame, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on cable keeper John E. Weinel, Inc., 1991 187 104 72 65 487
Gibbs QR Spring Loaded, Version K 1562 Gibbs QR Spring Loaded, Version O Stamped Al U-frame, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on cord keeper Robert Bowman, 2012 183 104 71 64 475
Gibbs QR Spring Loaded, Version L 1563 Gibbs QR Spring Loaded, Version P
Stamped Al U-frame, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on WEB keeper Robert Bowman, 2012 184 104 71 64 475
Gibbs QR Spring Loaded, Version M 1564 Gibbs QR Spring Loaded, Version Q Stamped Al U-frame, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on cord keeper Robert Bowman, 2012 186 104 71 64 475
Gibbs #2, Version B 206 Gibbs #2, Version B Stamped 5/8" Al U-frame /w dimples, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on web keeper Inner Mountain Outfitters, 2006 197 104 76 63 498


5/8" Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs #3 Prototype 112 Gibbs #3 Prototype Stamped 5/8" Al U-frame, wear roll-pins, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on web keeper John E. Weinel, Inc., 1993 244 104 76 63 498
Gibbs #2, Version A 72 Gibbs #2, Version A
(Later called Gibbs #3)
Stamped 5/8" Al U-frame /w dimples, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on web keeper Karst Sports, 1995 239 104 76 63 498
Gibbs #2SS 2256 Gibbs #2SS, Version A Stamped 5/8" SS U-frame, wire spring loaded /w screw, punched Al cam, QR pin axle on cable keeper Bob Thrun Collection, 2017 335 111 72 63 502
Gibbs #2SS 141 Gibbs #2SS, Version B
(Later called Gibbs #3SS)
Stamped 5/8" SS U-frame /w dimples, wire spring loaded /w cotter pin, spring cover, hard-coated Al goo cam, QR pin axle on web keeper On Rope 1, 1999 342 103 76 63 493
Gibbs #2SS 279 Gibbs #3, Version B Stamped 5/8" Al U-frame /w dimples, wire spring loaded, spring cover, hard-coated milled Al cam, QR pin axle on web keeper On Rope 1, 2009 237 104 77 63 503


3/4" Aluminum Shell Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs 3/4" QR 73 Gibbs 3/4" QR Stamped 3/4" Al U-frame, cast Al cam, QR pin axle on cable keeper John E. Weinel, Inc. 407 105 84 76 670
Gibbs 3/4" QR Spring Loaded, Version A 74 Gibbs 3/4" QR Spring Loaded, Version A Stamped 3/4" Al U-frame, coil spring loaded /w chain keepers, cast Al cam, QR pin axle on cable keeper John E. Weinel, Inc. 400 105 87 76 694
Gibbs 3/4" QR Spring Loaded, Version B 1919 Gibbs 3/4" QR Spring Loaded, Version B Stamped 3/4" Al U-frame, coil spring loaded /w chain keepers, cast Al cam, QR pin axle on cable keeper Speleoshoppe, 2012 398 116 86 75 745
Gibbs 3/4" QR Spring Loaded, Version C 69 Gibbs 3/4" QR Spring Loaded, Version C Stamped 3/4" Al U-frame, wire spring loaded, cast Al cam, QR pin axle on cable keeper Bob & Bob, 1989 383 105 87 76 694
Gibbs #3, Version A 267 Gibbs #3, Version A Stamped 3/4" Al U-frame, wire spring loaded, punched Al cam, QR pin axle on cable keeper William Deaton, 2009 311 104 90 72 671
Gibbs #4, Version A 142 Gibbs #4, Version A Stamped 3/4" Al dimpled U-frame, wire spring loaded, punched goo-coated Al cam, QR pin axle on web keeper John E. Weinel, Inc., 1999 325 104 92 68 651
Gibbs #4, Version B 280 Gibbs #4, Version B Stamped 3/4" Al U-frame /w dimples, wire spring loaded, spring cover, hard-coated milled Al cam, QR pin axle on web keeper On Rope 1, 2009 309 103 91 63 589


3/4" Stainless Steel Shell Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs 3/4" QR, Stainless Steel, Version A 76 Gibbs 3/4" QR, Stainless Steel, Version A Stamped 3/4" SS U-frame, cast Al cam, QR pin axle on cable keeper John E. Weinel, Inc., 1989 500 105 81 76 646
Gibbs 3/4" QR, Stainless Steel, Version B 2316 Gibbs 3/4" QR, Stainless Steel, Version B Stamped 3/4" SS U-frame, cast Al cam, QR pin axle on cable keeper On Rope 1, 2017 506 105 83 75 652
Gibbs 3/4" QR, Stainless Steel, Version C 1920
2257
Gibbs 3/4" QR, Stainless Steel, Version C Stamped 3/4" SS U-frame, cast Al cam, QR pin axle on cable keeper, coil spring /w chains
  • Speleoshoppe, 2012
  • Bob Thrun Collection, 2017
505 107 83 75 664
Gibbs #4SS, Version A 143 Gibbs #4S, Version A Stamped 3/4" SS dimpled U-frame, wire spring loaded, punched goo-coated Al cam, QR pin axle on web keeper John E. Weinel, Inc., 1999 438 105 91 64 612
Gibbs #4SS, Version B 274 Gibbs #4S, Version B Stamped 3/4" SS dimpled U-frame, wire spring loaded, Cast Al cam, QR pin axle on web keeper William Deaton, 2009 425 104 87 64 574


Bolted Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs #3B 281 Gibbs #3B Stamped 5/8" Al U-frame /w dimples, wire spring loaded, spring cover, hard-coated milled Al cam, bolt axle On Rope 1, 2009 230 104 78 56 454
Gibbs #3SB 282 Gibbs #3SB Stamped 5/8" SS U-frame /w dimples, wire spring loaded /w cotter pin, spring cover, hard-coated milled Al cam, bolt axle On Rope 1, 2009 319 104 76 51 398
Gibbs #4B 283 Gibbs #4B Stamped 3/4" Al U-frame /w dimples, wire spring loaded, spring cover, hard-coated milled Al cam, bolt axle On Rope 1, 2009 303 103 92 56 529
Gibbs #4SB 284 Gibbs #4SB Stamped 3/4" SS U-frame /w dimples, wire spring loaded /w cotter pin, spring cover, hard-coated milled Al cam, bolt axle On Rope 1, 2009 414 104 92 56 535


Gibbs ASR

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs ASR,Version A 1572 Gibbs ASR,Version A Stamped 5/8" Al U-frame, springwire loaded, hard-coated milled Al cam, QR Pin axle, bead chain keeper prstraining.com, 2012 246 104 77 68 543
Gibbs ASR,Version B 1573 Gibbs ASR,Version B Stamped 5/8" Al U-frame, springwire loaded, hard-coated milled Al thumb cam, QR Pin axle, bead chain keeper prstraining.com, 2012 255 103 90 63 585
Gibbs ASR,Version C 1574 Gibbs ASR,Version C Stamped 5/8" Al U-frame, springwire loaded, hard-coated milled Al cam, QR Pin axle, web keeper prstraining.com, 2012 235 104 76 63 494


Modified Gibbs

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs, Modified: Pivot Arm 68 Gibbs, Modified: Pivot Arm Parks Brothers modification: Al spring-loaded Gibbs with cam mounted on swinging pivot arm. Bob Elron, ca. 1985 192 104 67 57 397
Gibbs, Modified: Roller Cam, Version A 64 Gibbs, Modified: Roller Cam, Version A Modified Al spring-wire Gibbs with rollers. Gibbs Products Inc., ca. 1978 198 104 63 36 236
Gibbs, Modified: Roller Cam, Version B 1931 Gibbs, Modified: Roller Cam, Version B Modified Al spring-wire Gibbs with rollers. Barbara Anne Am Ende, 2012 192 102 63 36 232
Gibbs, Modified: Side Entry 78 Gibbs, Modified: Side Entry RH, modified SS Gibbs, cam mounted on custom axle bolt, one side cut open for rope clearance, back relieved for sling clearance, noncommercial Dr. Gary D. Storrick, 1983 286 102 60 37 226
Rescue Technology Gibbs Replacement Spring Kit 286 Rescue Technology Gibbs Replacement Spring Kit (installed on a Gibbs QR, Version C) Stamped Al U-frame, cast Al cam on web keeper, QR pin axle on chain keepers, Gibbs Replacement Spring Kit installed

Spring kit: Rescue Technology, 2009

Gibbs: Henderson L. Holman IV, 2009

194 104 58 57 344


Gibbs Quick

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
Gibbs Quick 1/2 inch 79
80
81
2251
Gibbs Quick 1/2 inch, Version A
Two-piece milled Al frame on roll pin hinge, wire spring loaded, spring cover, hard-coated cast Al cam, QR pin axle on web keeper
  • John E. Weinel, Inc., 1991
  • Inner Mountain Outfitters, 1991
  • Speleofest Door Prize, 1992
  • Bob Thrun Collection, 2017
268 93 87 57 461
Gibbs Quick 1/2 inch 2252 Gibbs Quick 1/2 inch, Version B
Two-piece milled Al frame on roll pin hinge, wire spring loaded, spring cover, hard-coated punched Al cam, QR pin axle on web keeper Bob Thrun Collection, 2017 280 92 91 57 472



Non-Gibbs Ascenders

Image ID Device Description Acquired Weight Height Width Thickness Std. volume
2050 ATN, Version A Stamped Al frame with opposing U-channels, milled hard-coated Al cam, retaining pin, heavy cable keeper ATN, Inc., 2016 219 88 90 44 349
2115 ATN, Version B Stamped Al frame with opposing U-channels, milled hard-coated Al cam, retaining pin, heavy cable keeper Bob Thrun Collection, 2017 239 88 90 44 349
Bogibbs 59
2262
Bogibbs LH, Hungarian, stamped SS U-frame, punched SS cam mounted on SS axle bolt, one side cut open for rope clearance
  • Bill Franz, 1992
  • Bob Thrun Collection, 2017
172 96 53 26 132
Brew BJ Ropewalker 60 Brew BJ Ropewalker, Version A Stamped SS U-frame, cast Al cam, Pin axle, spring-wire retainer Al Fincham, ca. 1980 192 102 60 43 263
Brew BJ Ropewalker 2261 Brew BJ Ropewalker, Version B Stamped SS U-frame, anodized cut Al cam, Pin axle, springwire retainer Bob Thrun Collection, 2017 178 102 60 10 64
CMI Ropewalker, Aluminum 153
2269
CMI Ropewalker, Aluminum Stamped Al U-frame /w mud slots, cast hard-anodized Al cam, QR axle, cable cam/axle keeper
  • K&R Adventure Gear, 2001
  • Bob Thrun Collection, 2017
196 105 91 58 553
CMI Ropewalker, Stainless 154
2270
CMI Ropewalker, Stainless Stamped SS U-frame /w mud slots, cast hard-anodized Al cam, QR axle, cable cam/axle keeper
  • K&R Adventure Gear, 2001
  • Bob Thrun Collection, 2017
321 105 91 58 553
David Jones 1979 David Jones Stamped Al U-frame, milled Al cam, QR pin axle David Jones, 2014 160 103 58 63 459
Ellested 91 Ellested Stamped At U-shell, milled cam /w eye bolt, drilled hex-head bolt /w hitch pin clip or alternate QR pin axle, noncommercial, reportedly only 4 made by Eric Ellested. Mike Moser, 1993 157 77 55 40 169
G.O.S.H. Cam, Version A 82
2075
G.O.S.H. Cam, Version A RH, Open-sided milled Al frame, swinging SS side plate, milled Al cam, bolt axle, captured spring-loaded pin closure
  • R. C. Schroeder, 1992
  • Bob Thrun Collection, 2017
169 51 79 52 210
G.O.S.H. Cam, Version B 83 G.O.S.H. Cam, Version B RH, Open-sided milled Al frame, swinging SS side plate, milled Al cam, bolt axle, captured QR pin closure R. C. Schroeder, 1992 171 50 79 52 205
G.O.S.H. Cam, Version C 84
175
2263
G.O.S.H. Cam, Version C LH, Open-sided milled Al frame, swinging SS side plate, milled Al cam /w wear pin, bolt axle, captured spring-loaded pin closure
  • Bill Storage, 1993;
  • William Shrewsbury, 2004
196 50 87 61 265
G.O.S.H. Cam, Version D 162
2075
G.O.S.H. Cam, Version D RH, Open-sided milled Al frame, swinging Al side plate, milled Al cam /w wear pin, machined axle, sealed spring-loaded pin closure
  • R. C. Schroeder, 2002
  • Bob Thrun Collection, 2017
121 35 85 35 105
G.O.S.H. Cam, Version E 163
2076
G.O.S.H. Cam, Version E RH, Open-sided milled Al frame, swinging Al side plate, milled Al cam /w wear pin, machined axle, sealed spring-loaded pin closure, milled pivoting attachment fitting
  • R. C. Schroeder, 2002
  • Bob Thrun Collection, 2017
151 37 80 36 106
Good Makings 1980 Good Makings Stamped Al U-frame /w dimples, wire spring loaded, spring cover, punched Al cam, QR pin axle on cable keeper Yungfeng Xiao, 2014 281 104 78 65 526
Infernal Machine 235 Infernal Machine Folded Al U-frame, cut Al cam, bolt axle /w nut, swivel, noncommercial Dwight Deal, 2007 ~300 124 84 44 459
2032 John Woods, Version A Homemade, bent Al U-frame, cut Al cam on web keeper, QR pin axle on string keeper John Woods, 2015 197 109 75 70 571
2033 John Woods, Version B Homemade, bent Al U-frame, cut Al cam on web keeper, QR pin axle on string keeper, side ring John Woods, 2015 195 108 76 70 568
Kantyu 87 Kantyu LH, Hungarian, stamped Al U-frame, milled Al cam mounted on axle bolt, one side cut open for rope clearance International Congress of Speleology, 1980 106 88 52 30 137
Levistan, Version A 57
1917
Levistan, Version A Russian, milled Ti U-frame with swinging side on 21 tooth hinge, milled cam /w ring, captured QR pin axle/latch
  • Speleoshoppe, 1994
  • Speleoshoppe, 2012
145 56 45 29 73
Levistan, Version B 174 Levistan, Version B Folded steel frame, milled steel cam, pin axle, extension arms William Shrewsbury, 2004 129 104 91 30 285
Lewis 89 Lewis UK, stamped SS U-frame, cast? Al cam, pin axle, spring-wire retainer Al Fincham, 1981 195 104 570 40 2371
Lewis with Roller 88 Lewis with Roller UK, Al side plates bolted to Al block back, 2 rollers, cast? Al cam, pin axle, spring-wire retainer Caving Supplies, 1982 259 118 75 41 363
Lucas 159 Lucas Homemade, half pipe /w ears, hand cut cam /w rope bollards Phil Lucas, 2001 305 129 48 71 441
Paquette 242 Paquette Homemade, folded open-sided SS frame, hand cut cam, bolt axle, milled safety block, noncommercial Dr. Gary D. Storrick, 2008 315 128 95 40 487
Petzl 2266 Petzl Macrocender Milled Al frame, hard-coated milled Al cam on springwire keeper, pin axle with ball, wire clip backup Bob Thrun Collection, 2017 335 114 90 53 561
Petzl 1578 Petzl Microcender, Version A Milled Al frame, hard-coated milled Al cam, pin axle with spring-loaded catch fitting milled frame slot & hole Tom Furey, 2012 159 76 57 43 187
Petzl 2102 Petzl Microcender, Version A Milled Al frame, hard-coated milled Al cam, pin axle with spring-loaded catch fitting milled frame slot & hole Bob Thrun Collection, 2017 160 76 57 43 187
2298 Petzl Rescucender, Version A Milled Al frame, hard-coated milled Al cam on springwire keeper, large eye,pin axle with spring-loaded catch fitting milled frame slot & hole Bob Thrun Collection, 2008 251 113 75 46 390
2070 Petzl Rescucender, Version B Milled Al frame, hard-coated milled Al cam on springwire keeper, small eye, pin axle with spring-loaded catch fitting milled frame slot & hole Bob Thrun Collection, 2008 253 113 77 46 400
2042 Petzl Rescucender, Version C Milled Al frame, hard-coated milled Al cam on SS arm, pin axle with spring-loaded catches fitting milled frame slots Inner Mountain Outfitters, 2016 254 109 82 36 318
Polish 207 Polish Stamped Al U-frame, cast Al cam, pin axle with cross pin on cord keeper Andrzej Mistela, 2006 147 105 58 44 269
PRS 1575 Progressive Rescue Solutions Stamped 5/8" Al U-frame, springwire loaded, hard-coated milled Al thumb cam, QR Pin axle, bead chain keeper prstraining.com, 2012 253 103 99 58 593
Reflex 2260 Red Rose Stamped SS U-frame, handmade Al cam, Pin axle, springwire retainer Bob Thrun Collection, 2017 206 103 60 37 225
Reflex 231 Reflex Stainless Steel, side opening, basal extensions on shell & cam, pivoting flat cam face Konstantin Serafimov, 2007 278 137 86 30 349
Rock Exotica Dualcender 204
2283
Rock Exotica Double Microcender
(a.k.a. Dualcender)
Milled Al frame, two hard-coated milled Al cam on springwire keeper, sewn web sling, pin axle with spring-loaded catch fitting milled frame slot & hole
  • WesSpur Tree Equipment, 2006
  • Bob Thrun Collection, 2017
247 76 58 65 284
Rock Exotica Large Rescucender (Model 302002) 124 Rock Exotica Large Rescucender (Model 302002) Milled Al frame, hard-coated milled Al cam on spring-wire keeper, pin axle /w ball and clip retention On Rope 1, 1997 334 115 90 53 549
Rock Exotica Microcender (Model 302040) 92
2264
Rock Exotica Microcender (Model 302040) Milled Al frame, hard-coated milled Al cam on spring-wire keeper, pin axle with spring-loaded catch fitting milled frame slot & hole
  • Inner Mountain Outfitters, 1990
  • Bob Thrun Collection, 2017
136 72 57 45 185
Rock Exotica Rescucender, Version A 93 Rock Exotica Rescucender, Version A Milled Al frame, hard-coated milled Al cam on spring-wire keeper, pin axle with spring-loaded catch fitting pin /w hole on frame Inner Mountain Outfitters, 1989 229 113 76 45 386
Rock Exotica Rescucender, Version B (Model 302011) 94
2267
Rock Exotica Rescucender, Version B (Model 302011)
Milled Al frame, hard-coated milled Al cam on spring-wire keeper, pin axle with spring-loaded catch fitting milled frame slot & hole
  • Inner Mountain Outfitters, 1992
  • Bob Thrun Collection, 2017
234 113 75 45 381
Rock Exotica Rescucender, Version C 1530 Rock Exotica Rescucender, Version C
Milled Al frame, hard-coated milled Al cam on springwire keeper, pin axle with spring-loaded catch fitting milled frame slot & hole On Rope 1, 2009 252 113 75 46 392
Roehr & Katon 95 Roehr & Katon Stamped Al U-shell, hand-cut cam, pin axle, hitch pin clip retainer, noncommercial Gary Moss, 1979 137 100 58 31 180
Russian Cable 103 Russian Cable Folded steel frame, milled steel cam, pin axle, spring-wire keeper Ed Sira, 1993 175 90 45 33 134
Russian Rope 96
2059
Russian Rope Milled Al frame, swinging side plate, milled Al cam on brass rivet
  • John E. Weinel, Inc., 1994
  • Bob Thrun Collection, 2017
97 46 72 28 93
Russian Speleo Club "Barrier" 228 Russian Speleo Club "Barrier" FoldedSS frame, cut Al cam, axle in slot, noncommercial Marina Chugnova, 2007 ~100 81 87 33 230
Salewa Hiebler, Version A 85
1525
2077
2306
Salewa Hiebler, Version A Open-sided forged Al frame, forged spring-loaded Al cam /w staked axle
  • Darrel Tomer, 1984
  • Siray Kosek, 2010
  • Bob Thrun Collection, 2017
  • Bill Liebman, 2017
109 46 107 30 148
Salewa Hiebler, Version B 86
1515
1542
2078
Salewa Hiebler, Version B Open-sided forged Al frame, forged spring-loaded Al cam /w staked axle, wire safety catch on frame
  • Eastern Mountain Sports, 1979
  • Jorge Gutic, 2009
  • Philip Harris, 2010
  • Bob Thrun Collection, 2017
105 46 107 30 148
Salewa Hiebler, Version C 1526 Salewa Hiebler, Version C Open-sided forged Al frame, forged spring-loaded Al cam /w staked axle, wire safety catch on frame Siray Kosek, 2010 109 49 108 32 171
Storrick Thick Shell 98 Storrick Thick Shell Folded SS frame, hardened tool steel milled cam, bolt axle /w hex & wing nuts, noncommercial Robert W. Storrick, 1971 333 90 55 42 208
Storrick Thin Shell 97 Storrick Thin Shell Folded SS frame, hardened tool steel milled cam, bolt axle /w hex & wing nuts, noncommercial Robert W. Storrick, 1971 294 92 55 42 213
Unknown Homemade, Version A 111 Unknown Homemade, Version A Stamped Al shell, hand cut Al cam, bolt & nut axle, noncommercial ? 161 109 65 38 269
Unknown Homemade, Version B 137 Unknown Homemade, Version B Folded steel U-frame, cut steel cam, bolt axle /w nut & cotter pin, noncommercial NSS Auction, 1999 409 103 58 39 233
Unknown "LWO" 90 Unknown "LWO" Homemade, folded AL frame, hand cut & bolted cam, pin axle, spring-wire retainer, noncommercial ? 270 101 68 47 323
Unknown "S," Version A 250 Unknown "S," Version A Homemade, folded open-sided Al frame, hand cut cam, bolt axle, cut angle safety, noncommercial Bill Boehle, 2008 139 102 69 29 202
Unknown "S," Version B 251 Unknown "S," Version B Homemade, folded open-sided Al frame, hand cut cam, bolt axle, cut angle safety, plastic rope guide, noncommercial Bill Boehle, 2008 143 101 70 30 210
Ural-Alp 117 Ural-Alp RH, Russian, stamped Ti? U-frame, forged spring-loaded Ti cam mounted on SS axle bolt, one side cut open for rope clearance John E. Weinel, Inc., 1995 101 65 92 30 179
Ural-Alp Supplemental 168 Ural-Alp Supplemental RH, Russian, stamped Ti? U-frame, forged spring-loaded Ti cam mounted on SS axle bolt, one side cut open for rope clearance Alvo-Titanium, 2003 85 70 87 31 185
Varnedoe 149 Varnedoe Homemade, AL frame & side plate, cable puller cam, bolt axle, cable clip-in point Bill Varnedoe, 2000 545 112 79 57 503
Varnedoe 2265 Wall Safety RG1 6066 Milled Al frame, hard-coated milled Al cam on springwire keeper, pin /w ball axle, hitch pin backup Bob Thrun Collection 304 99 90 51 457

Type 1 Lever Cam Weight Chart