Abstract: A pull-cord control device for a curtain without an operation cord includes a pull-cord (3), a base (1), and a pressing plate (2) rotatably mounted to the base through a rotation shaft (42). The base forms first friction shafts (11). The pressing plate forms second friction shafts (21) staggered with the first friction shafts. The pressing plate forms a fixing pole (41). A first end of the pull-cord is connected to a retractable-cord device (5), and a second end of the pull-cord extends between the first and second friction shafts, and is connected to a curtain body (6) after extending about the fixing pole. When the curtain body moves up and down, the pressing plate is rotated between a clamping position and a loose position. When the pressing plate is in the clamping portion, the second friction shafts actuate the pull-cord to wander between the first and second friction shafts.

Abstract: A descender is for work at height, climbing, mountaineering, speleology or other practices using a rope. The descender device for a textile rope (F) includes a casing in which a cam mechanism (10) and an actuating lever (3) for the cam mechanism (10) are housed. The casing (2) includes a return element (13) for the rope (F). The cam mechanism (10) includes a lever pin (29) rotatably actuated by the actuation lever (3) and a movable cam (25) which is rotatably movable between a deactivation position and a locked position in which the movable cam (25) presses on the rope (F) against the return element (13). The lever pin (29) acts on a rocker member (32) which is integral with the movable cam (25) during a first rotation step of the lever pin (29) in a direction opposite to the activation direction of the movable cam (25).

Abstract: A descender with folding handle and integral pulley preferably includes a base plate, a cover plate, a folding handle, a handle cam, a rope cam, an euler, an integral pulley and at least one spacer. The folding handle includes a base handle portion, a folding handle portion, handle pivot pin and a biasing device. The rope cam includes an inner profile, an outer perimeter, a pivot hole and a rope groove. The pivot hole is formed through rope cam to receive a spacer post. The euler includes a round diameter and a pair of D-shaped projections extending from opposing ends of the round diameter. D-shaped openings are formed in the base and cover plates to receive the D-shaped projections. The integral pulley preferably includes a pulley bracket, a spring clip, a rope pulley and a pulley axle. The rope pulley includes a peripheral groove for retaining a rope.

Abstract: A personal escape and rescue device comprising a descent mechanism having a pair of plates having opposing undulating faces each comprising at least one peak and at least one trough defined along the length of the undulating face, and a control mechanism for displacing the plates relative to one another in a direction along the length of the undulating faces thereby adjusting the disposition of the opposing undulating faces relative to one another thereby setting the distance between the trough and the opposing peak; a body harness to support a descender, the descent mechanism being attached at an upper location of the harness whereby the descender is in a stable position; and a strap/cable, of a length to provide descent to safety, reeved between the faces of the descent mechanism, and comprising an anchoring arrangement.

Abstract: Safety devices for sports and mountaineering activities are provided. In particular, such devices include a body that has a first and a second plate, both fixed, substantially parallel to one another and connected together at one end through a lever member hinged to both of the plates by a pin, so that, when assembled, said plates define space (a) in which a path for the rope is provided. The lever member can rotate around axis (b) between a release position and a holding position. The lever member also may include a fixed pulley, arranged on a portion of the lever member away from axis (b) so that a rope can slide along the fixed pulley about an axis offset with respect to axis (b) of the lever member. The devices also may include an anti-panic mechanism.

Abstract: A safety rope blocker having a body provided with a through hole for the passage of an anchoring ring and a curved groove opening into the through hole for the passage of the safety rope through the anchoring ring, the body being able to rotate between a blocking position in which the safety rope is blocked by the anchoring ring against the body and a releasing position in which the safety rope slide in the curved groove, the groove includes a deviation element to allow, in the releasing position, the safety rope to slide in the curved groove and outside the through hole.

Abstract: A device and method are provided for protection during ascent, in particular, for climbing electricity poles, trees or other high structures. The device, including a non-fixed rope that is to be carried by the ascending person, includes a retaining means for fixing the device to a fixed anchoring point in a predetermined position. A structural configuration enables the introduction of the rope into the device, fixed in the predetermined position, from below. A first redirecting means is provided by which the rope can be guided through the device on a curved path. A mechanism automatically locks off the rope when the speed of movement of the rope through the device exceeds a predetermined limit value. A second redirecting means is provided by which the rope emerging from the device can be guided out of the device in the direction of ascent. A laterally arranged flat first bearing surface is provided.

Abstract: A device for controlling movement of a rope has a main part and a bar assembly. The bar assembly is pivotably connected to a first side portion of the main part for rotation between a first position in which the bar assembly is not in contact a second side portion of the main part and a second position in which the bar notch receives the second side portion. The bar assembly is arranged in the first position to allow a portion of the rope to be arranged within a central opening and at least partly around the bar part. The bar part is arranged in the second position such that the main part and the bar part define first and second opening portions of the central opening and the portion of the rope extends through the first and second opening portions and at least partly around the bar part.

Abstract: A self-braking descender having a panic function and being formed by a body including a channel through which a cord extends in both directions. One end of the body is provided with an actuation lever formed by two projecting sides, a solidly connected appendage and a friction hole through which the cord also extends, and the lever can be folded onto the body. The other end of the body is provided with a head formed by a preferably semi-circular part including two projections and a rear cam with toothing in order to increase the friction in the panic position. An assist element for controlling the sliding of the cord is also included.

Abstract: A rope adjuster device (14) is provided for allowing adjustable positioning of a load along a rope (12) extending through the device and includes a rope bite (20), a cam carrier (22), and a frame (24). The bite is open on a lateral side (32) to allow loading of the rope into the bite by moving the rope laterally with respect to the length (26) of the rope. The frame defines a connector opening (60) to receive a load connector for attaching a load to the device. The frame extends from the opening (60) to a pivot location (62) whereat the cam carrier is connected to pivot relative to the frame between an open position wherein a rope can be loaded from the lateral side and a closed position wherein the lateral side is closed by the frame to prevent removal of the rope.

Abstract: A safety device on a rope, comprising a first flange-plate and a movable second flange-plate, a roller mounted on a first spindle integral to the first flange-plate, which presents clearance in the heightwise direction. The movable second flange-plate is equipped: with a securing notch operating in conjunction with the first spindle to block the device in the closed position when the roller is under load, and with a latch actuated by control means to perform unlatching of the latter enabling opening of the second flange-plate when the device is no longer under load.

Abstract: An improved fall protection system has been developed. The system functions by: (1) arresting the fall of such users, thereby protecting them from impact with the ground which could cause serious injury or death; (2) providing a method of recovery and escape from a fall-arresting device by providing a user with a controlled descent back to the ground or to a lower place of safety at a safe and gradual rate of descent; (3) providing greater simplicity and wearer comfort in fall-arresting and self-recovery devices; and (4) incorporating gear storage capability into such protective devices, in order to eliminate the need to wear a separate gear storage pack, vest, tool belt, or other such garment or accessory.

Abstract: A self-braking descender having a panic function and being formed by a body including a channel through which a cord extends in both directions. One end of the body is provided with an actuation lever formed by two projecting sides, a solidly connected appendage and a friction hole through which the cord also extends, and the lever can be folded onto the body. The other end of the body is provided with a head formed by a preferably semi-circular part including two projections and a rear cam with toothing in order to increase the friction in the panic position. An assist element for controlling the sliding of the cord is also included.

Abstract: In a rappelling device (10) for braking a load guided on a cable which can be fixed to the rappelling device (10), the cable (14) is friction-guided over a distance (22) and the cable (14) which runs through the rappelling device (10) is guided over a brakable shaft (24). The cable (14) is pressed onto the brakable shaft (24) by means of a pre-definable pressing force (29). The braking elements for the brakable shaft (24) can be kept small in weight and design because an additional braking of the cable (14) takes place over the friction-guided distance in the rappelling device (10).

Abstract: Method and Apparatus for a Compact Descender used in conjunction with a rope. The invention includes a first plate and a second plate arranged adjacent to one another and pivotally connected to one another by a rope post at the top ends of the first plate and the second plate. The first plate and the second plate are selectively and pivotally opened and closed and are interlocked when closed by attachment of a carabiner through a hole in the bottom end of the first plate and an adjacent hole in the bottom end of the second plate. The first plate and the second plate include a rope channel adjacent to a lever, where the lever is pivotally attached to a pivot pin affixed to the first plate. A substantially rectangular shaped rope clamping cam is pivotally attached above the lever on the same pivot pin.

Abstract: A descent control device is disclosed manufactured with a bar having holes for guiding a rope used in descent, and a lever designed to pivot or move relative to the bar and compress the opening of one of the holes. Compressing the opening increases friction and slows or stops descent. Control can be from manually moving the lever or by connecting the lever to the descending weight, thereby automatically moving the lever. Hole and pivot geometry may be altered to provide multiple braking options, accommodate varying ropes, and alter normal operating friction.

Abstract: An abseiling device for braking a load (16) that is suspended on a rope (14) and may be fastened to the abseiling device (10), with which the rope (14) passes through the abseiling device (10) and is frictionally guided along a section (22), at least one portion of the section (22) being guided by a part (25) of the abseiling device (10) that is movable out of an unloaded starting position relative to a housing (12) of the abseiling device; when a load is suspended, the part (25) generates a frictional force that is a function of the weight of the load (16).

Abstract: The invention relates to an abseiling device for braking a load (16, 34) guided on a rope (14), the rope (14) running through the abseiling device (10) over a distance (22) in a friction guided manner, at least one section of the distance (22) being guided via a part (25) which can be moved from a load free starting position relative to a housing of the abseiling device (10), said part creating a force on the rope (14) dependent on the weight of the load (16) when a load is suspended, characterized in that a manually actuable adjustment unit (29) is provided, with which the moveable part (25) can be moved into the starting position in which the movable part (25) can apply no or only a small force from the moveable part (25) to the rope (14).

Abstract: A self-locking comprising a pulley in the form of a rotary cam, a brake shoe, and an actuating handle of a mechanism with an interruptible mechanical link between the pulley and handle after an intermediate position has been passed causing disengagement of the pulley and automatic return of the cam to a locking position. The mechanism comprises a selector with a pushbutton coupled with an operating means designed to occupy an active position or an inactive position to respectively disable or enable said disengagement of the pulley.

Abstract: The invention relates to a self-arresting rope belay device comprising a cam arranged to clamp the rope when the rope is under tension, and a lever arranged to act on the cam to progressively release the rope by manual action on the lever. The lever acts on the cam respectively with a geared-down effect in an initial part of its release travel, and with a direct effect in a final part of its travel. This results in the relative movement of the cam with respect to the lever being smaller in the initial part of the travel than in the final part, which enables accurate adjustment of the braking effort and of the running speed of the rope in the initial part of travel of the lever.

Abstract: Embodiments of the invention provide a simple and convenient way to ascend and descend a rope without using a belayer. Embodiments of the invention can smoothly transition from a rope clamping position to a rope unclamping position, conveniently providing an effective rope control device.

Abstract: An escape system for moving a person on a cord on the exterior of a building. The building has a first surface and a second surface. The first surface and the second surface are substantially perpendicular to each other. The system comprises a control device for controlling the movement of the person on the cord and an anchoring device for reversibly mechanically attaching the control device to the building. The control device is substantially irreversibly mechanically connected to the anchoring device. The anchoring device has a first elongated element and a second elongated element. The first elongated is mechanically connected to the second elongated element. The first elongated element and the second elongated element are configured such that, the first elongated element at least partially rests against the first surface of the building and the second elongated element at least partially rests against the second surface of the building.

Abstract: A safety anchor (20) for securing a user to a substantially vertical safety structure, e.g., elevator cable (21). Safety anchor (20) includes a back plate (26) to which are pivotally mounted a roller (28), inner cam assembly (30) and outer cam assembly (32). Each cam assembly (30,32) includes a lever arm (50,36) to which is mounted a cam (52,42). A user (25) is secured by means of carabiners and a short tether cable, for example, to the free ends of lever arms (50,36). Cable (21) threads between cams (52,42) which are pivoted to compress the cable in response to downward force exerted against the lever arms (50, 36).

Abstract: The invention relates to a thread brake with a holding means (17), a bearing pin (25), which has an assembly section (24) disposed in the holding means (17) and a bearing section (26) projecting out of the holding means (17), two brake elements (33, 34) displaceably disposed on the bearing section (26) and a pretensioning mechanism intended for adjustment of the braking force. The pretensioning mechanism includes a spring (29) pretensioning the assembly section (24), a tension element (39) attached to the bearing section (26) and an adjusting and protecting member (20), which is disposed to be axially displaceable in the holding means (17) and houses the assembly section (24) and the spring (29). The invention additionally relates to textile machines and thread feed devices equipped with such a thread brake (FIG. 3).

Abstract: A descender (10) comprising a base (11) having a connection means (26), a pivotal member (12) pivotally mounted on the base (11) about a pivot axis (1), the pivotal member (12) defining first and second spaced projections (14, 15) for engaging a rope (5), the base (11) defining a stop member (18) and a lever (23) pivotable between first and second end positions, the lever (23) and the pivotal member (12) defining complementary cam surfaces (24) to regulate the distance between the stop member (18) and the second projection (15), a resistance force applied to the rope (5) being at a minimum when the second projection (15) is moved away from the stop member (18) and the lever (23) is located in a mid-position, and is at a maximum when the lever (23) moves towards either end position wherein the rope (5) is pressed between the second projection (15) and a braking surface (22).

Abstract: A descender (10) comprising a base (11) having a connection means (26), a pivotal member (12) pivotally mounted on the base (11) about a pivot axis (1), the pivotal member (12) defining first and second spaced projections (14, 15) for engaging a rope (5), the base (11) defining a stop means (18) and a lever (23) pivotable between first and second end positions, the lever (23) and the pivotal member (12) defining complementary cam surfaces (22) to regulate the distance between the stop means (18) and the second projection (15), a resistance force applied to the rope (5) being at a minimum when the second projection (15) is moved away from the stop means (18) and the lever (23) is located in a mid-position, and is at a maximum when the lever (23) moves towards either end position wherein the rope (5) is pressed between the second projection (15) and a braking surface (24).

Abstract: A descender includes a frame having opposing first and second plates which define a gap therebetween. Three bearing members are movably interconnected between the plates and linked to an operator. A flexible member has opposite end portions which extend in opposite directions, and an intermediate portion which is routed about the bearing members in a manner which forms a knot. Movement of the operator relative to the frame causes the bearing members to move relative to the frame and thereby loosens or tightens the knotted, intermediate portion of the flexible member about the bearing members.

Abstract: A force limiting rope brake includes a pair of rigid first and second side-plates in parallel overlaid array sandwiching therebetween a pivotally mounted pulley. The pulley pivots about a pivot axis extending orthogonally between first and second side-plates. A pair of rigid wedges are rigidly mounted between the first and second side-plates on opposite lateral sides of the pulley. The first and second wedges and the pulley when in the first and second positions define, respectively, first and second gaps, the first and second gaps identical in size and sized so that rope segments journalled through the first and second gaps are compressed in either the first or second gaps when the pulley is rotated into either the first or second positions respectively.

Abstract: A descent control device is disclosed manufactured with a bar having holes for guiding a rope used in descent, and a lever designed to pivot or move relative to the bar and compress the opening of one of the holes. Compressing the opening increases friction and slows or stops descent. Control can be from manually moving the lever or by connecting the lever to the descending weight, thereby automatically moving the lever. Hole and pivot geometry may be altered to provide multiple braking options, accommodate varying ropes, and alter normal operating friction.