37 results about "Descender" patented technology

A belay descender device for a rope comprising a earn mounted rotating on a fixed flange to perform locking of the rope when said rope is under tension, and a lever articulated on the cam to perform progressive unlocking of the rope with a geared-down effect at the beginning of unlocking travel of the lever. The operating lever comprises transmission means collaborating with a guide ramp of the flange to interrupt the mechanical link with the cam after an intermediate position of the lever has been passed resulting in freeing from said ramp outside the gearing-down area. The end of the guide ramp of the flange corresponds to the anti-panic position of the transmission means, enabling automatic locking of the canvas soon as the gearing-down area has been passed.

The present invention relates to a user interface for a portable power driven system, specifically in relation to an integrated user interface for controlling such an arrangement, and being applicable for example in relation to an ascender / descender arrangement. The invention also relates to a corresponding method and computer program product for operating such a portable power driven system.

The self-blocking descender-belay device (1) according to the invention comprises:a first lateral guide flange (6) for the rope, comprising a braking nose (4e),a second lateral guide flange (7) for the rope, which is separated from the first flange (6) by a transverse gap (8) for passage of the rope, and can be displaced between a spaced position for putting into place and removal of a rope, and a closed position in which the rope is trapped in the transverse gap (8) for passage of the rope,a cam (4d) which is engaged between the first and second flanges (6, 7) and is mobile towards and away from the braking nose (4e), and is thrust towards the braking nose (4e) by a cam return spring,the transverse gap (8) for passage of the rope extending between a rope input in the vicinity of the braking nose (4e), and a rope output opposite,the rope output having a large opening such as to permit free orientation of the rope output end between a blocking orientation in which the rope surrounds the cam (4d), and a release orientation in which the rope passes through the transverse gap (8) for passage of the rope directly, and without thrusting the cam (4d) towards the braking nose (4e).

A rotary high lifter and controlled descender has a main housing enclosing a ratchet spool, controlled descender, and locking pawl. An adjustable crank turns the ratchet spool and takes up rope which raises an attached feeder, nestbox, etc. The locking pawl assures that as the rope is wound, the lifter / descender automatically locks in place so that an inadvertent crank release of the crank does not cause the feeder to fall. The rope exits the main housing via an inlet nipple which protects the housing from the elements, insects, etc. To lower the feeder, actuate a cam lock to release the locking pawl, and turn the crank in the opposite direction. Releasing the cam lock can actuate a controlled descender portion of the invention. These components apply a brake-pad-like action against the ratchet spool (can also use a tension knob) to control the speed of rotation and descent.

A method and system are disclosed for post optical character recognition font size determination. Optical character recognition output from an optical character recognition engine that includes character and bounding box information is aggregated into character strings. Measurements are then collected from each character in each character string that correspond to alignment heights of the top or bottom of the character with an ascender-line, a cap-line, a digit-line, a mean-line, a base-line, or a descender-line. Histograms are formed for each of these heights for each character string from the collected measurements. Based on the histograms, a pivot height is selected and used to determine the relative font size of the character string. The relative font size is normalized using a preselected factor associated with the selected pivot height. The normalized font size is then output as the font size of characters in the optical character recognition output.

The invention discloses a hydraulic descent control device which mainly comprises a one-way throttle valve bank, a hydraulic pump (or a hydraulic motor) and a reel component. The one-way throttle valve bank is fixedly mounted on the hydraulic pump, an upper oil port of the one-way throttle valve bank is communicated with an upper oil port of the hydraulic pump, and a lower oil port of the one-way throttle valve bank is communicated with a lower oil port of the hydraulic pump. A mounting flange of the hydraulic pump is connected with a reel frame of the reel component through a screw, an output shaft of the hydraulic pump is connected with one end of a reel through a key, and the other end of the reel is connected with a support shaft through a key. The reel frame can be connected with a fixing body through an upper fixing rope and a lug on the upper portion of the reel frame, and a rope on the reel is connected with a human body through a human body connecting rope at the lower end of the reel. The hydraulic descent control device can be used for realizing high-altitude stability and safe descent of a human body, particularly can play a great role in personnel rescue of high-rise buildings, and has a wide application prospect if serving as a fire fighting instrument.

Disclosed is a rod-type lowering device formed of a core axle (1) and an outer sleeve (2). An outer sleeve sliding rope hole (2.3) is provided on the outer sleeve, and a rope pressure ring (2.4) is also provided on the outer sleeve. The rope pressure ring can slide up or down under the manual control of a person and when the rope pressure ring is located at the position of the sliding rope hole, a wound rope (3.2) on the core axle is squeezed, the frictional force on the wound rope becomes greater, and a person (4) will stop being lowered. When the rope pressure ring moves upwards away from the position of the sliding rope hole below, the wound rope is no longer compressed, the frictional force on the wound rope lessens and the person will be lowered. The lowering device solves the problem of current rod-type lowering devices being inconvenient to use. Not only can the lowering device serve as a suspension tool during work such as cleaning or fitting the outer walls of a building, but the device can also serve as a suspension tool during tasks such as fire-fighting and rescue from buildings, emergency response or high altitude rescue, and serve as specialized equipment for airborne landing of personnel.

The invention discloses a closestool cover plate descent control device which comprises a rotating shaft, a blade and a shaft sleeve. A radial end face is formed at one end of the rotating shaft and provided with an oil groove, an oil inlet of the oil groove is large, the tail end of the oil groove is small, and a rib is convexly arranged on the rotating shaft in the axial direction. A shaft cavity is formed in the blade in the axial direction, an insertion groove is integrally convexly formed in the side wall of the shaft cavity, the shaft cavity of the blade is in sleeved connection with the rotating shaft, the rib of the rotating shaft is inserted in the insertion groove of the blade, and a plurality of oil grooves are formed in the side walls of the two sides of the insertion grooves at intervals. The shaft sleeve is in sleeved connection with the rotating shaft, and a sealed cavity is formed between the shaft sleeve and the rotating shaft and filled with damping oil. When the shaft sleeve rotates, the damping oil drives the blade to rotate relative to the rotating shaft, the rib of the rotating shaft seals the oil holes, and the damping oil flows towards the oil grooves; when the shaft sleeve rotates in the opposite direction, the damping oil drives the blade to rotate n the reverse direction relative to the rotating shaft, the rib of the rotating shaft opens the oil holes, and the damping oil passes the oil holes. The closestool cover plate descent control device has reliability in opening and closing and is simple to assemble and simple in manufacturing process.

The invention discloses a recyclable escape descent control device for a tall building. The recyclable escape descent control device comprises a transmission mechanism, a heat dissipation mechanism, a brake mechanism and a steel wire rope take-up and pay-off mechanism. A steel wire rope pulls a roller to rotate, a sun wheel meshed with a planet wheel is driven through the planet wheel to rotate, meanwhile, fan blades and a ratchet wheel rotate to drive a friction wheel to rotate, under the action of centrifugal force, friction resistance torque is generated by friction blocks and the inner wall of a box plate, and therefore the objects of heat dissipation, speed reduction and braking are achieved; after an escaper safely lands, reverse motion take-up is performed on the rope through the take-up and pay-off mechanism, and finally the rope is evenly wound on the roller to be get ready for using next time. The recyclable escape descent control device has the advantages of being high in heat dissipation capacity, recyclable and stable in performance.

The invention belongs to the technical field of high-rise emergency escape, and relates to a safe escape apparatus used for taking sanctuary, in particular to a descender for escaping. The descender comprises connecting plates, a pull rod and a gear; an arch piece 5 is arranged at one side at the upper part of a main connecting plate 1, and the outer side of the arch piece 5 is provided with a connecting pull rod 4 connected by an eccentric bolt 3; a first convex gear 8 and a second convex gear 10 which are meshed with each other are arranged at the other side of the main connecting plate 1 ina juxtaposed way; the first convex gear 8 and the second convex gear 10 are provided with auxiliary connecting plates 2; the first convex gear 8 is connected with a spanner 7; the second convex gear10 is provided with a through hole and is connected with the upper end of a connecting piece 11 by screws. Compared with the prior art, the descender has the remarkable characteristics of low price, simple structure, convenient and safe operation as well as being simultaneously used by a great deal of people by using one rope for escaping. The descender for escaping is applicable to emergency suchas fire in high-rise building and the like, and has better practicability and market application prospect.

The invention discloses a hydraulic descent control device, which mainly consists of a one-way throttle valve bank, a hydraulic pump and a reel assembly, wherein the one-way throttle valve bank is fixedly arranged on the hydraulic pump; the upper port of the one-way throttle valve bank is communicated with the upper port of the hydraulic pump; and the lower port of the one-way throttle valve bank is communicated with the lower port of the hydraulic pump. A mounting flange of the hydraulic pump is mutually connected with a reel rack of the reel assembly through bolts; the output shaft of the hydraulic pump is connected with one end of a reel through a key; and the other end of the reel is connected with a support shaft through a key. The reel rack can be connected with a fixed body through a lug and an upper fixed rope above the reel rack. By utilizing the hydraulic descent control device disclosed by the invention, a human body can stably and safely descend slowly. The hydraulic descent control device can perform an important action especially personnel rescue of high-rise buildings. If used as a fire-fighting apparatus, the hydraulic descent control device is wide in application prospect.

The invention discloses a rope brake descender. The descender comprises a fixed side board, a movable side board, a movable wheel disk and a control handle, wherein, the fixed side board is rotationally connected with the movable side board through a first pin shaft; a fixed wheel disk is fixedly arranged on the fixed side board at the upper part of the movable wheel disk through a second pin shaft; an arched brake swinging sheet is rotationally connected on the fixed side board at the upper part of the fixed wheel disk through a third pin shaft; a connecting arm is arranged on a connecting end of the control handle and the first pin shaft; and the end part of the connecting arm and the corresponding end of the brake swinging sheet are respectively hinged on two ends of a connecting rod so that the connecting rod drives the brake swinging sheet to rotate back and forth around the third pin shaft and meanwhile one of two ends of the brake swinging sheet abuts against the periphery of the fixed wheel disk as the control handle swings back and forth. The rope brake descender has the characteristics of reasonable design and high safety, and is practical and convenient.