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"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 7389974 | Screw, nut and cable transmission A screw, nut and cable transmission device (6, 7, 12, 13, 20 and 21) between a motor (5) and a device (1, 2) which is to be moved and which is made up of at least one double pulley (14), which amplifies the movement of the cable li... | 06/24/2008 |
| 7377487 | Holding device for handling tools A holding device is designed to compensate for the weight of a tool using a non-vertical length of an elastic rope. The elastic rope may be redirected using a pulley mounted to a carrier that is mounted to a support structure. The user is able to use the tool withou... | 05/27/2008 |
| 7118094 | Rotatable cable guide with cable switching feature A cage in which two pulley wheels are mounted with tangent circumferences so that their circumferential cable grooves surround a cable passing between the wheels. The cage freely rotates about an axis that passes between the wheels. The cage axis is normal to the pl... | 10/10/2006 |
| 7085091 | Reducing tape media damage in data regions A method and apparatus for reducing tape media edge damage in data regions. The present invention controls where popped strand occur by shifting the wrap turn around/stream points in the tape media to an unused region of tape. As data is written for the length of th... | 08/01/2006 |
| 6907934 | Universal top-drive wireline entry system bracket and method A bracket and tension rod device is mounted to a top-drive dolly to carry the weight of a sheave wheel assembly. The device is deployed by connecting the sheave wheel assembly to a rigid dolly arm with an adjustable tension rod to relieve a gooseneck from adverse te... | 06/21/2005 |
| 6390952 | Auto-belay rock climbing devices and modular climbing towers The invention provides improved climbing devices and structures for use in mobile and fixed climbing installations. Modular climbing towers are generally assembled from panels having lateral curves by fastening upper and lower flanges of the panels togeth... | 05/21/2002 |
| 6234453 | Rolling door winch apparatus Winch apparatus for raising and holding a rolling steel door includes a wheeled base with telescoping members extending upwardly from the base. A hand cranked winch raises and lowers the telescoping members, while a reversible electric motor is used to po... | 05/22/2001 |
| 6067735 | Boom support structure for a hoist rope support sheave A machine for heavy loads comprising a rope support sheave mounted on a boom between upper and lower ends of the boom for movement between a raised position wherein the sheave supports a hoist rope above the boom and a lowered position wherein the rope su... | 05/30/2000 |
| 5992827 | Winding block A block for handling an elongate body such as a monitoring cable, comprising a plurality of wheels (5) having parallel axles (11) which, in an operational position, are arranged approximately perpendicular to the longitudinal direction of the block, where... | 11/30/1999 |
| 5927693 | Rope guiding device with pivotal guide roller for rope winches A rope guiding device (1) for rope winches (W) comprises a stand with points of attachment for the attachment of a rope winch, which stand accommodates a rope guide (3) constituting the rope outlet and inlet and a guide roller (4) pivotally supported on t... | 07/27/1999 |
| 5790407 | Time-based control system A time-based control system (10) for controlling a process incorporating external devices using a predefined response profile (13). The response profile (13) is continuously compared to the actual response of the controlled device (11). A plurality of sen... | 08/04/1998 |
| 5725200 | Snatch block assembly A snatch block assembly for engaging a line between its ends includes a pair of arms mounted at their inner ends to a base. Engagement structure, in the form of a roller, is mounted to the outer end of each arm. The arms are either fixed in position relat... | 03/10/1998 |
| 5645269 | Sheave cable guarding and guiding device A safety device for cable sheave installations, which provides cable guide assemblies which block hands and the like from being drawn in to be injured between moving cables and sheave wheels. The cable guide assemblies are pivotally attached to the outsid... | 07/08/1997 |
| 5067709 | Unassisted lower torso strengthening and stretching device A device for stretching and strengthening the muscles of the lower back and legs of a person in a supine position. The device includes a board with straps to restrain the pelvis of the person. A rope and pulley system, operated by the person by pulling an... | 11/26/1991 |
| 4449716 | Training device for athletes A device for training athletes in gymnastics, acrobatics and the like comprising a spotting rig wherein the slack in the gymnast's suspension lines is automatically removed by a take-up mechanism. In a preferred form, the take-up mechanism includes a pair... | 05/22/1984 |
| 4390162 | Infinitely variable crown block positioning Mounted in the upper part of an oil well drilling derrick are horizontal crown beams having end portions projecting beyond the opposite sides of the derrick. A fast line sheave and a dead line sheave are mounted on those beams near the opposite sides of t... | 06/28/1983 |
| 4285502 | Device for keeping constant the tensile stress in a cable A device for keeping constant the tensile stress in a cable, comprises two guide pulleys for the cable spaced from each other and disposed in a common plane. A plurality of pulleys are disposed between the two guide pulleys in that same plane and are secu... | 08/25/1981 |
| 4278041 | Anchor handling guides A pair of pin assemblies located at the stern of a marine vessel for guiding and controlling cables involved in anchor handling procedures, the pins assuming a vertical position when in use and a horizontal position when not in use, the top of the pin ass... | 07/14/1981 |
| 4221365 | Adjustable cable draw mechanism An adjustable cable draw mechanism including a pair of interlocking elongated channel members slidable relative to each other so as to vary their combined length, a plurality of rollers mounted in end-to-end relationship and lengthwise on each of the chan... | 09/09/1980 |
| 4166427 | Tightening and securing cables holding barges together By grasping a steel cable with a low cost portable self-tightening clamp that increases its holding force as the tensile pull force increases, one man can tighten steel cables of various lengths having bitter ends by using temporarily a single portable ra... | 09/04/1979 |
| 4093186 | Line brake device useful for fire escape A manually controlled device for lowering people or objects safely from tall buildings having two spaced pulley assemblies, held in place by a cylindrical frame. One end of the frame holding one pulley assembly is rotatable with respect to the other end o... | 06/06/1978 |
| 4039141 | Grounding accessory for a bundle conductor stringing block A grounding accessory for detachable assembly to a bundle conductor stringing block and having an independently supported grounding roller resiliently biased against a respective bundle conductor despite different sag conditions while the bundle conductor... | 08/02/1977 |
