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66results about How to "Avoid reverse motion" patented technology

Ladder safety device and method of using the same

A house clamp assembly having a fixed jaw and a slide bar mounted movable jaw, the fixed jaw opposing the movable jaw. A one-way drive means, by operation of a trigger handle grip, releasably engages the slide bar and advances the movable jaw towards the fixed jaw. The one-way drive means is incapable of moving the slide bar and movable jaw away from the fixed jaw. A return motion of the movable jaw (separating) is accomplished manually when the one-way drive means is disengaged. A braking lever, which is biased to bind the slide bar, prevents reverse motion of the slideable jaw away from the fixed jaw, except when the first lever is disengaged from the slide bar. A device for securing a ladder to a building, wherein the removed end of the slide member has a hook shape; wherein the jaws include jaw faces having multiple raised portions, wherein the releasable braking means of the building clamp assembly means includes a pivoting lever; wherein the locking member of the ladder hook assembly includes a pivoting lever, attached at one end to the body, and having a slot dimensioned to slideably receive the hook slide member therethrough; wherein the body of the ladder hook assembly includes a pair of slots dimensioned for and adapted to slideably receive the slide member therethrough; and wherein the slots are arranged to maintain the hook slide member substantially parallel to the slide bar of the building clamp assembly.
Owner:RUDD DAVID MICHAEL

Ladder safety device having a building clamp assembly and a ladder hook assembly

A house clamp assembly having a fixed jaw and a slide bar mounted movable jaw, the fixed jaw opposing the movable jaw. A one-way drive means, by operation of a trigger handle grip, releasably engages the slide bar and advances the movable jaw towards the fixed jaw. The one-way drive means is incapable of moving the slide bar and movable jaw away from the fixed jaw. A return motion of the movable jaw (separating) is accomplished manually when the one-way drive means is disengaged. A braking lever, which is biased to bind the slide bar, prevents reverse motion of the slideable jaw away from the fixed jaw, except when the first lever is disengaged from the slide bar. A device for securing a ladder to a building, wherein the removed end of the slide member has a hook shape; wherein the jaws include jaw faces having multiple raised portions, wherein the releasable braking means of the building clamp assembly means includes a pivoting lever; wherein the locking member of the ladder hook assembly includes a pivoting lever, attached at one end to the body, and having a slot dimensioned to slideably receive the hook slide member therethrough; wherein the body of the ladder hook assembly includes a pair of slots dimensioned for and adapted to slideably receive the slide member therethrough; and wherein the slots are arranged to maintain the hook slide member substantially parallel to the slide bar of the building clamp assembly
Owner:RUDD DAVID MICHAEL

Chain tensioning adjusting mechanism

The invention relates to a chain tensioning adjusting mechanism which comprises a shell, a direct drive motor, a drive controller, a transmission device, a transmission lead screw, a first connector device, a chain and a second connector device. The direct drive motor is arranged in the shell, and the drive controller is arranged at the upper end of the shell and is connected with the direct drive motor through a line; a supporting plate is arranged on the outer side of the shell, the transmission device is arranged on the side, close to the shell, of the supporting plate, and the direct drive motor is connected with the transmission device; one end of the transmission lead screw penetrates the supporting plate to be connected with the output end of the transmission device, and the other end of the transmission lead screw is connected with one end of the first connector device; the other end of the first connector device is connected with the second connector device through a chain; and a tension sensor is arranged at the connecting position of the first connector device and the chain and is connected with the drive controller through a line. By means of the chain tensioning adjusting mechanism, automatic chain tensioning is achieved, the chain driving accuracy is improved, chain falling is prevented, the chain tensioning adjusting mechanism can adapt to the wicked work environment, and the reliability coefficient is high.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Adjusting support used for atmosphere infrared detector

The invention discloses an adjusting support used for an atmosphere infrared detector, which belongs to the technical field of design and manufacture of an atmosphere infrared detector. The adjustingsupport includes a pedestal; the top end of the pedestal is equipped with a gear case; the inner chamber of the gear case is provided with a bevel gear rotating shaft; the right end of a bevel gear shaft is provided with a turning handle I; the top of the bevel gear rotating shaft is provided with a rotary case; the inner chamber of the rotary case is equipped with a pair of engaged gears; a frontend of a rotating shaft adjacent to the left end is equipped with a turning handle II; the left and right sides of the pair of engaged gears are engaged to a group of racks; one sides, adjacent to the inner walls of the rotary case, of the racks are provided with slide strips; the top ends of the racks are equipped with a disc; the top of a fixed plate is provided with a supporting board; the topof the right side of the supporting board is equipped with an L-shaped board; the right end of the L-shaped board is equipped with a telescopic rod; and the right end of the telescopic rod is equipped with an arc-shaped bracket. The adjusting support can meet different adjusting manners, and is simple and convenient in manual adjusting and simple in motion principle.
Owner:SUZHOU GUANGSHENG ENVIRONMENTAL TECH CO LTD

Laser machining method and device for cooperative motion of laser galvanometer and air blowing device

The invention discloses a laser machining method and device for cooperative motion of a laser galvanometer and an air blowing device. The method comprises the steps that a moving path of the laser galvanometer is planned; scanning machining is carried out by the laser galvanometer according to a planned moving path; the air blowing device moves cooperatively along with the laser galvanometer; andthe device comprises the laser galvanometer, the air blowing device and a driving device, wherein the laser galvanometer is arranged opposite to a laser source, the air blowing device is arranged below the laser galvanometer, and the driving device is used for moving the air blowing device. According to the method, through the optimized path and the mode of block machining on the path, the problemof matching between the high-speed mobility of the galvanometer and the motion of a motor platform is solved; and meanwhile, idle stroke waiting of the galvanometer redundancy is avoided, and the waiting time of the galvanometer idle stroke is reduced to the minimum, so under the condition that the machining efficiency is guaranteed, the influence of the heat effect on the machining effect in thelaser machining process can be reduced, the problem of shielding of a galvanometer light beam in the moving process of the air blowing device is avoided, and the quality of a laser machining workpiece is improved.
Owner:HUAZHONG UNIV OF SCI & TECH
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