Rope Grabs
Other

Rope Grabs are industrial devices used to protect workers in high places. Their function is to ensure that the worker doesn't perform the big splat when falling from high places; however, they are often used with safety belts that can cause a slower and far less spectacular death by suffocation. This can't be blamed on the rope grab, its the fault of the uninformed user.

My interest in rope grabs is that they are similar to ascenders, and suggest alternate ideas for ascender design. I often discuss these in this context instead of the context of their intended use.

This page includes rope grabs that do not fit into my Type 1 Lever Cam or Rocker-Arm Rope Grab categories. A few of these resemble Type 1 Lever Cam Ascenders except the cam presses a shoe against the rope. The Safe-Tec Duck-R resembles the Type 2 Lever Cam Ascenders, and the Single Rope Technique A5s use eccentric cams like their hand ascenders. Some of the others are far more unusual, even bordering on strange.

Image	ID	Device ↓	Description	Acquired	Weight ↓	Height ↓	Width ↓	Thickness ↓	Std. volume ↓
	3702	Atlas Kwik-Stop Model 6275, Version A	Aluminum, lever-activated sliding block, jack chain keeper, snap hook, for 5/8-3/4 inch (16-19 mm) nylon rope.	Renee Jaloszynski, 2022	1255	176	155	51	1381
	660	Atlas Kwik-Stop Model 6275, Version B	Al, lever-activated sliding block, for 5/8-3/4 inch (16-19 mm.) nylon rope.	Bob Elron	1227	176	157	51	1409
	3701	Atlas Kwik-Stop Model 6275, Version C	Aluminum, lever-activated sliding block, cable keeper, for 5/8-3/4 inch (16-19 mm) nylon rope.	Darlene Pryne Re-Tooled, 2022	928	176	154	51	1379
	765	Barrow/Hepburn Everest Camlock, Version A	Al tube, plastic guides, ball locks, dual lever	eBay, Leeds, UK, 2002	757	157	137	83	1785
	2856	Barrow/Hepburn Everest Camlock, Version B	Aluminum tube, plastic guides, ball locks, single lever	Jerry L Barthelemy, 2021	560	137	74	50	509
	670	DBI/SALA Lad-Saf LS-58	Steel, wedging roller, for 5/8 inch (16 mm.) synthetic rope.	John Murray, 1993	1127	190	109	51	1056
	817	DBI/SALA LS-1441, Version A	Milled & stamped steel, rear gate, lever & wedge roller action	Len Nicolai, 2005	720	165	104	47	803
	1710	DBI/SALA LS-1441, Version B	Milled & stamped steel, rear gate, lever & wedge roller action	LittleLots, 2011	714	156	101	48	755
	2859	DBI/SALA Model 5000335	Steel & plastic, levered roller, for 5/8 inch (16 mm) synthetic rope.	Scotty Horn, 2021	770	133	119	53	842
	1814	Gemtor VF649	SS, type 1 lever cam with slot-guided roller, flat opposing plate, for 5/8" or 3/4" rope	Brian Kallfelz, 2013	712	109	109	45	534
	1652	Gemtor VW651	SS, type 1 lever cam with slot-guided roller, flat opposing plate, for 5/16" cable	East End Pawn Shop, 2009	1034	119	104	33	412
	883	Miller 1200	Bronze 8 /w side arm, manila lanyard /w clip	Cal Manky, 2007	715	250	156	49	1912
	710 2631	Mio Mechanical	Steel, type 1 lever activated compression shoe, for 1/2 in synthetic rope.	On Rope 1, 1997 Bob Thrun Collection, 2017	641	109	136	65	964
	880 2630	Petzl ASAP, Version A	Al shell, toothed inertia wheel on spring-loaded lever, plastic guard.	Inner Mountain Outfitters, 2007 Bob Thrun Collection, 2017 Felix Lambert, 21	339	136	89	38	461
	1823	Petzl ASAP, Version B	Al shell, toothed inertia wheel on spring-loaded lever	Inner Mountain Outfitters, 2014	297	110	89	37	359
	1835	Petzl ASAP Lock	Al shell, toothed inertia wheel /w lock on spring-loaded lever	Expé-Spelemat, 2014	404	126	96	47	567
	3858	Rose Mfg. Hi-Binder	Al shell, Sliding pressure plate, 2 lever cams, hand bar, for 3/4" rope	Bassett Metal Studios, 2023	1517	382	153	51	2989
	692	Rose Mfg. Safe-Hi	Steel, compression device, for 3/4 in nylon or manila rope.	Theresa Williams/Maury Benamy, 1995	963	300	150	58	2610
	1808 2638	Safe-Tec Duck-R, Version A	Forged Al shell, spring-loaded type–II lever cam, single rope	Altius Technical Services, 2013 Bob Thrun Collection, 2017	249	97	72	41	291
	3834 3836	Safe-Tec Duck-R, Version B	Forged SS shell, Al spring-loaded type II lever cam, single rope	David Garcia, 2023 Thomas Gaubert, 2023	250	97	72	41	284
	3835	Safe-Tec Duck-R, Version C	Forged SS shell, Al spring-loaded type II lever cam, single rope	Thomas Gaubert, 2023	258	97	73	42	292
	3824	Safe-Tec EN Forcer H	Forged SS shell, spring-loaded SS type–II lever cam, single rope	Joshua Woodis, 2022	390	86	76	41	268
	3828	Safe-Tec EN Forcer L	Forged SS shell, spring-loaded Al type–II lever cam, single rope	Elaine Gomez, 2023	304	86	76	42	273
	736	Single Rope Technique A5 811 L	Al, eccentric cam, cam-mounted safety	Single Rope Technique Equipment, 2000	234	83	76	26	165
	2635	Single Rope Technique A5 811 R	Aluminum, eccentric cam, cam-mounted safety	Bob Thrun Collection, 2017	229	83	76	26	162
	2863	SSE Stop & Go	Steel, swinging front plate,, cast pot metal cam & anvil, removable descent handle	Martin D. Guiles, 2021	542	95	121	34	390
	834	Teufelberger Grip Rescue	Steel, swinging front plate, cast pot metal cam & anvil, removable descent handle	Dirk-Jan Swier, 2005	576	96	129	39	477
	1736	Yoke N601	Painted Al shell, 4 internal spring-loaded button-controlled Al rope eyes, pivoting Al attachment eye.	KwikSPACE Safety, 2012	357	146	95	35	491

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