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.
| ID | Device | Description | Acquired | Weight | Height | Width | Thickness | Std. volume |
|---|---|---|---|---|---|---|---|---|
| 59 | Bogibbs | LH, Hungarian, stamped SS U-frame, forged SS cam mounted on SS axle bolt, one side cut open for rope clearance | Bill Franz, 1992 | 172 | 96 | 53 | 26 | 132 |
| 60 | Brew BJ Ropewalker | Stamped SS U-frame, cast Al cam, Pin axle, spring-wire retainer | Al Fincham, ca. 1980 | 192 | 102 | 60 | 43 | 263 |
| 153 | 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 | 196 | 105 | 91 | 58 | 553 |
| 154 | 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 | 321 | 105 | 91 | 58 | 553 |
| 91 | Ellested | Stamped 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 |
| 82 | 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 | 169 | 51 | 79 | 52 | 210 |
| 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 |
| 84 175 |
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 |
| 162 | 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 | 121 | 35 | 85 | 35 | 105 |
| 163 | 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 | 151 | 37 | 80 | 36 | 106 |
| 128 | Gibbs spring-wire, Version A | Stamped Al U-frame, cast cam, pin axle /w nylon keeper and retainer. One of first 50 made. | NSS Auction, 1998 | 148 | 103 | 64 | 36 | 237 |
| 61 252 |
Gibbs spring-wire, Version B | Stamped Al U-frame, original cast cam, pin axle /w spring-wire keeper and retainer | 1980s? Bill Boehle, 2008 |
152 | 103 | 64 | 36 | 237 |
| 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 |
| 62 | Gibbs spring-wire, Version C | Stamped Al U-frame, cast ribbed "racing" cam, pin axle /w spring-wire keeper and retainer | John E. Weinel, Inc., 1989 | 155 | 104 | 59 | 37 | 227 |
| 63 | Gibbs spring-wire, Version D | Stamped Al U-frame, cast cam /w cord keeper, pin axle /w spring-wire keeper and retainer | Gibbs Products Inc., 1973 | 182 | 104 | 59 | 36 | 221 |
| 209 | Gibbs QR. Version A | Stamped Al U-frame, cast Al cam on cord keeper, QR pin axle on chain keepers | Thomas Kopp, 2007 | 182 | 103 | 58 | 57 | 338 |
| 65 | Gibbs QR, Version B | Stamped Al U-frame, cast Al cam on web keeper, QR pin axle on chain keepers | 1970s | 182 | 104 | 58 | 57 | 344 |
| 66 113 |
Gibbs
QR, Version C |
Stamped Al U-frame, hard-coated cast Al cam, QR pin axle on cable keeper |
? Geary Schindel, 1992 |
178 | 104 | 60 | 57 | 356 |
| 1511 | Gibbs QR, Version D | Stamped Al U-frame, hard-coated cast Al cam, QR pin axle, web keepers | Ben North, 2009 | 167 | 104 | 58 | 57 | 340 |
| 67 | Gibbs QR Spring Loaded, Version A | Stamped Al U-frame, 2-coil spring loaded, cast Al cam, QR pin axle on chain keeper | 1970s | 186 | 104 | 71 | 57 | 421 |
| 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 |
| 77 261 |
Gibbs QR Spring Loaded, Version C | Stamped Al U-frame, coil spring loaded, cast Al cam, QR pin axle, chain keepers & pull |
? Gene Clinger, 2008 |
197 | 104 | 72 | 57 | 427 |
| 75 | Gibbs QR Spring Loaded, Version D | Stamped Al U-frame, wire spring loaded, hard-coated cast Al cam, QR pin axle on chain keeper | ? | 182 | 104 | 70 | 57 | 415 |
| 263 | Gibbs QR Spring Loaded, Version E | Stamped Al U-frame, wire spring loaded, hard-coated cast Al cam, QR pin axle on cable keeper | Ronald Krieger, 2008 | 180 | 104 | 70 | 57 | 419 |
| 71 | Gibbs QR Spring Loaded, Version F | 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 |
| 1510 | Gibbs QR Spring Loaded, Version G | 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 |
| 286 | Gibbs QR, Version B /w Gibbs Replacement Spring Kit | Stamped Al U-frame, cast Al cam on web keeper, QR pin axle on chain keepers, Gibbs Replacement Spring Kit installed | Gibbs: Henderson L. Holman IV, 2009 Spring kit: Rescue Technology, 2009 |
194 | 104 | 58 | 57 | 344 |
| 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 |
| 76 | Gibbs 3/4" QR, Stainless Steel | 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 |
| 74 | Gibbs 3/4" QR, Coil Spring | 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 |
| 69 | Gibbs 3/4" QR, Wire Spring | 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 |
| 205 | Gibbs #1 | Stamped Al U-frame, hard-coated cast Al cam, QR pin axle on web keeper | Inner Mountain Outfitters, 2006 | 193 | 103 | 77 | 63 | 501 |
| 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 |
| 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 |
| 141 | Gibbs
#2SS (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 |
| 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 |
| 267 | Gibbs #3, Version A | Stamped 3/4" U-frame, wire spring loaded, forged Al cam, QR pin axle on cable keeper | William Deaton, 2009 | 311 | 104 | 90 | 72 | 671 |
| 279 | Gibbs #3, Version B | Stamped 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 |
| 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 |
| 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 |
| 142 | Gibbs #4 | Stamped 3/4" Al dimpled U-frame, wire spring loaded, forged goo-coated Al cam, QR pin axle on web keeper | John E. Weinel, Inc., 1999 | 325 | 104 | 92 | 68 | 651 |
| 143 | Gibbs #4SS | Stamped 3/4" SS dimpled U-frame, wire spring loaded, forged goo-coated Al cam, QR pin axle on web keeper | John E. Weinel, Inc., 1999 | 438 | 105 | 91 | 64 | 612 |
| 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 |
| 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 |
| 79 80 81 |
Gibbs
Quick 1/2 inch |
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 |
268 | 93 | 87 | 57 | 461 |
| 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 |
| 64 | Gibbs, Modified: Roller Cam | Modified Al spring-wire Gibbs with rollers. | Gibbs Products Inc., ca. 1978 | 198 | 104 | 63 | 36 | 236 |
| 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 |
| 111 | Homemade, Version A | Stamped Al shell, hand cut Al cam, bolt & nut axle, noncommercial | ? | 161 | 109 | 65 | 38 | 269 |
| 137 | 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 |
| 235 | Infernal Machine | Folded Al U-frame, cut Al cam, bolt axle /w nut, swivel, noncommercial | Dwight Deal, 2007 | ~300 | 124 | 84 | 44 | 459 |
| 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 |
| 57 | 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 | 145 | 56 | 45 | 29 | 73 |
| 174 | Levistan, Version B | Folded steel frame, milled steel cam, pin axle, extension arms | William Shrewsbury, 2004 | 129 | 104 | 91 | 30 | 285 |
| 89 | Lewis | UK, stamped SS U-frame, cast? Al cam, pin axle, spring-wire retainer | Al Fincham, 1981 | 195 | 104 | 570 | 40 | 2371 |
| 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 |
| 90 | LWO | Homemade, folded AL frame, hand cut & bolted cam, pin axle, spring-wire retainer, noncommercial | ? | 270 | 101 | 68 | 47 | 323 |
| 159 | Lucas | Homemade, half pipe /w ears, hand cut cam /w rope bollards | Phil Lucas, 2001 | 305 | 129 | 48 | 71 | 441 |
| 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 |
| 207 | Polish copy of Gibbs | Stamped Al U-frame, cast Al cam, pin axle with cross pin on cord keeper | Andrzej Mistela, 2006 | 147 | 105 | 58 | 44 | 269 |
| 231 | Reflex | Stainless Steel, side opening, basal extensions on shell & cam, pivoting flat cam face | Konstantin Serafimov, 2007 | 278 | 137 | 86 | 30 | 349 |
| 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 |
| 92 | 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 | 136 | 72 | 57 | 45 | 185 |
| 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 |
| 94 | 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 | 234 | 113 | 75 | 45 | 381 |
| 204 | Rock Exotica(?) Double Microcender | 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 | 247 | 76 | 58 | 65 | 284 |
| 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 |
| 103 | Russian Cable | Folded steel frame, milled steel cam, pin axle, spring-wire keeper | Ed Sira, 1993 | 175 | 90 | 45 | 33 | 134 |
| 96 | Russian Rope | Milled Al frame, swinging side plate, milled Al cam on brass rivet | John E. Weinel, Inc., 1994 | 97 | 46 | 72 | 28 | 93 |
| 228 | Russian Speleo Club "Barrier" | Folded steel frame, cut Al cam, axle in slot, noncommercial | Marina Chugnova, 2007 | ~100 | 81 | 87 | 33 | 230 |
| 85 | Salewa Hiebler, Version A | Open-sided forged Al frame, forged spring-loaded Al cam /w staked axle | Darrel Tomer, 1984 | 109 | 46 | 107 | 30 | 148 |
| 86 | 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 | 105 | 46 | 107 | 30 | 148 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 149 | Varnedoe | Homemade, AL frame & side plate, cable puller cam, bolt axle, cable clip-in point | Bill Varnedoe, 2000 | 545 | 112 | 79 | 57 | 503 |
