30results about How to "Reduce downward force" patented technology

The invention is a Pointe shoe for ballet. It has a rigid mid-foot section and a rigid toe loop connected by a transverse axis joint located at the metatarsal-phalange joint (M-P). With the foot in Pointe position, the weight of the dancer is supported by the rigid mid-foot section. The downward force is passed through the M-P joint to the front of the toe loop. None of the weight of the dancer needs to be supported by the toes. In contrast, prior art Pointe shoes have a rigid shank and toe cup to assist the toes in supporting the weight of the dancer. The toes have small bones, muscles, and ligaments. This often results in pain and injury to the toes. The shoe of the invention has a mid-foot section that is shaped with support surfaces for the sole of the heel bone and the dorsal side of the cuneiform and metatarsal bones. These bones are larger and stronger than the bones of the toes. This shoe provides a larger area of bone and tissue to support the weight of the dancer on Pointe. It is more comfortable to use and results in fewer injuries.

A screen (15) applied to overlay a gutter (14) on an outside edge of a roof (11) of a building. The screen comprises a panel (15) of generally planar mesh affixed along a first edge to the roof (11) and along the opposite edge of the panel to the top outside edge (18) of the guttering (14). The mesh is formed of moulded plastics material and the panel (15) has an electrically powered heating strand (50) extending along the panel in the direction of said first edge. A screen (15) applied to overlay a gutter (14) on an outside edge of a roof (11) of a building. The screen comprises a panel (15) of generally planar mesh affixed along a first edge to the roof (11) and along the opposite edge of the panel to the top outside edge (18) of the guttering (14). The mesh is formed of moulded plastics material and the panel (15) has an electrically powered heating strand (50) extending along the panel in the direction of said first edge.

A fluid flow energy capture device for power generation has a rotor with a substantially vertical axis and a plurality of vanes. A mount for the rotor allows the rotor to rotate in response to fluid flow such as wind contacting the plurality of vanes, and the mount puts the rotor in rotationally driving communication with a generator. The rotor has an open center which allows fluid communication from spaces between the vanes to above the rotor. A plurality of guide surfaces define channels that bias fluid flow to be tangential to the rotor.

A height adjustable chair has an upper portion that moves relative to a lower portion. Push-off arm rests are provided so that a person need not leave the chair to adjust the seat height upwardly. A seated person can transfer their body weight to the push-off arm rests supported directly by the stationary lower portion while the seat is being adjusted upwardly.

A furrow opener apparatus has an arm assembly adapted at a front end thereof for pivotal attachment to a seeder frame. A single disc is rotatably attached to the arm assembly about a disc axis at an angle to the travel. A walking beam is pivotally attached to the arm assembly rearward of the disc about a beam axis transverse to the travel direction. A bias element exerts a force on the arm assembly such that a downward bias force is exerted on the walking beam at the beam axis. A packer wheel is rotatably attached at a rear end of the walking beam, and a gauge wheel is rotatably attached at a front end of the walking beam. The gauge wheel is configured to roll along the ground adjacent to the leading face of the disc, and the packer wheel is configured to roll along the furrow.

A vehicle including a housing. The housing includes an outer portion, an inner portion, an air-flow channel, a plurality of air inlets, an air outlet, and a spoiler surface or a spoiler. The air-flow channel is disposed between the outer portion and the inner portion of the housing. The air inlets are disposed on the outer portion of the housing, and the air outlet is disposed at a rear of the outer portion of the housing. The air-flow channel communicates with the air inlets and the air outlet. The spoiler surface or the spoiler is disposed on a bottom of the outer portion of the housing, a top of the inner portion of the housing, or both the bottom of the outer portion and the top of the inner portion of the housing, for extending path of the air.

A device movable across a road to level emulsion thereon. A wheeled frame includes brushes extending downward to engage the emulsion. A manual worm gear connected between the frame and a towbar assembly positions the towbar mount to connect to a vehicle hitch and vertically moves the frame while maintaining the brush contacting plane. Spring biased guide wheels position the brushes to contact the road surface even though the surface is uneven.

The invention discloses a high-pressure large-flow quick opening valve which comprises a valve body, a throttling sleeve, a main valve body, a gas insulation sleeve and a throttling rod. The valve body is provided with an upper end cap. The lower end of the valve body is provided with a gas path connector. The throttling sleeve is fixed to an inner cavity of the valve body through the upper end of the circumferential wall of the throttling sleeve. The circumferential wall of the main valve body is located in a gap between the circumferential wall of the valve body and the circumferential wall of the throttling sleeve. The gas insulation sleeve is arranged in the throttling sleeve. A control cavity is formed between the gas insulation sleeve and the upper end cap. The upper end of the throttling rod is fixedly connected with the gas insulation sleeve, and the lower end of the throttling rod penetrates through a through hole in the bottom wall of the throttling sleeve to be fixedly connected with the bottom wall of the main valve body. The valve body is provided with an annular table, a gas discharge outlet and a gas inflation inlet. The upper end cap is provided with a first connector and a second connector which communicate with the control cavity. The second connector is connected with the gas inflation inlet through an inflation pipe which is provided with a one-way throttling valve body. The high-pressure large-flow quick opening valve has the advantages of being compact in structure, convenient to use, sensitive in response, reliable in sealing and adjustable in opening speed and can provide reliable guarantee for the inflation and deflation processes of a launch canister.

The invention provides a ship driving device capable of being flexibly steered. The ship driving device comprises a ship body, wherein a plurality of driving assemblies are arranged on the ship body; a plurality of surrounding rods are fixed outside the ship body; each driving assembly comprises a rotary rod, a motor and a screw propeller; the rotary rods are supported on the surrounding rods; the whole bodies of the rotary rods are located outside the ship body and the lower ends of the rotary rods extend to the lower side of the ship body; the motors are fixed at the lower parts of the rotary rods; the screw propellers are mounted on the motors; the directions of the screw propellers of all the driving assemblies are the same; and the upper parts of the rotary rods of the any two adjacent groups of the driving assemblies are connected via a transmission structure so that all the driving assemblies are rotated synchronously. By virtue of the ship driving device capable of being flexibly steered, the forward movement direction of a ship can be changed at random, and lateral movement, backward movement and emergency braking can be realized; the navigation speed is high; and if the ship meets other ships or floating objects or reef islands in a navigation process and the ship needs to stop or avoid, the ship can stop and avoid randomly.

A vehicle drive energy management and active suspension control system and operative methodology in which ground / pathway anomalies are sensed and the relationship thereof to the vehicle chassis is used to enable or automatically effect adjustment of chassis supporting actuators to reduce resisting effects and / or increase assisting effects of the encountered ground / pathway anomalies and thus reduce the vehicle drive energy that would otherwise be required to efficiently move the vehicle in the intended direction, yet maintain the stability of the vehicle.

The invention provides an inner protective gas rod for welded pipe welding. The inner protective gas rod comprises a tail end rod section, plugs and a gas outlet rod section, wherein a plurality of gas outlet holes are formed in the gas outlet rod section, the plugs are arranged at two ends of the gas outlet rod section correspondingly, and a gas pressure bin covering the outer side of the gas outlet rod section is formed by the two plugs and the inner wall of a welded pipe; the tail end rod section is provided with a tail end gas hole and communicates with the gas outlet rod section, and gasentering the gas outlet rod section is exhausted through the gas outlet holes and the tail end gas hole; and the inner protective gas rod further comprises a connecting rod section, the connecting rodsection and the tail end rod section communicate with the two plugs correspondingly, and the gas is injected into the gas outlet rod section through the connecting rod section. The inner protective gas rod outputs the stable gas through the gas outlet holes, and the gas pressure bin is formed between the two plugs, so that one lifting force is provided for a weld joint of the welded pipe in the crystallization process, downward acting force borne by liquid metal is reduced, and the effect of protecting the weld joint against subsidence is achieved; and due to the arrangement of the tail end gas hole, the effects of cooling a welded position and preventing the welded position from being oxidized can be achieved.

The invention discloses a device and method for reducing the capacitor temperature coefficient, and the device comprises an enclosed space which consists of a capacitor upper cover, a capacitor housing and a capacitor lower cover, and the interior of the enclosed space is provided with a fixed cover, a capacitor core, a fixed plate, a core pedestal, a support plate, a support spring, a push plate, and an expander. According to the invention, the polar plate spacing of each capacitor element in the capacitor core is compressed or amplified by changing the height (namely the core compaction coefficient) of the capacitor core, so that the adjustment of the capacitance of the core is realized, and the temperature coefficient of the capacitor is automatically reduced.

The invention provides a forklift work safety control system which comprises a detection module, a hydraulic subsystem and a first input module. The detection module is used for acquiring mast heightdata or mast inclination angle data and transmitting into a control module; the hydraulic subsystem is used for receiving a command of the control module so as to drive a mast to lift up and down or adjust an inclination angle of the mast; the first input module is used for providing a forklift adjusting and levelling signal or a normal operation mode signal; and when the first input module givesout the forklift adjusting and levelling signal, the control module adjusts the work of the hydraulic subsystem according to the mast height data or the mast inclination angle data acquired by the detection module so as to drive the mast to lift up and down or adjust the inclination angle of the mast. The forklift work safety control system provided by the invention solves the problems that sincean existing forklift fork is not at the horizontal position, cargoes are easily squeezed or damaged due to throw, or the cargoes fall down to cause accidents due to lifting operation when the mast ofthe forklift is at a forward leaning state.

A rotary mower has a center mower deck and a hitch arm assembly adapted at a front end for connection to a tractor drawbar. A hydraulic pump is mounted on the hitch arm assembly and connected to a hydraulic motor mounted on the center mower. An upward arm section of the hitch arm assembly extends upward from a front portion of the hitch arm assembly to provide a desired clearance distance between a middle arm section of the hitch arm assembly and the ground, and a downward arm section of the hitch arm assembly extends downward from the middle arm section to a rear end of the hitch arm assembly which is pivotally connected to the mower deck about a hitch pivot axis oriented horizontally and perpendicular to the operating travel direction. The hitch pivot axis is located at a vertical position below top edges of the front wheels.

A drain valve includes a valve body provided with a drain outlet in the lower portion, a first valve element arranged in the valve body to open or close the drain outlet, dividing the valve body into an inner cavity and an outer cavity and provided with a water outlet communicated with the drain outlet, a second valve element located in the inner cavity to open or close the water outlet of the first valve element, and a lifting component having an end connected with the second valve element and provided with a floating body assisting the lifting component in lifting the second valve element with a buoyancy force. Compared with traditional drain valves, the drain valve realizes the same draining effect with a short lift stroke, is convenient and fast to use, and improves the comfort level for users.

The present invention relates to the field of cable processing, in particular to a pneumatic wire stripping device; The right side of the plate is fixedly connected with a linkage block, and the front and rear ends of the linkage block are respectively equipped with clamping cylinders and left and right movable devices. The cylinder head of the clamping cylinder is connected with a clamping push plate. There are two clamping rods that cooperate with each other on the wire push plate. The left end of the clamping rod is provided with a stripping card that cooperates with the cable. The position of the stripping card is the same as that of the crimping device. Coordination; the purpose of this invention is to provide a pneumatic wire stripping device, the wire clamping part is set on the left and right movable devices, and the wire clamping is realized through the cooperation of the cylinder and the connecting rod, which greatly simplifies the structure of the wire stripping device and greatly improves Improve the efficiency of stripping and save the cost of stripping.

The invention discloses a device and method for reducing the temperature coefficient of a capacitor, which comprises a closed space composed of a capacitor upper cover, a capacitor shell and a capacitor lower cover, and the closed space is provided with a fixed cover, a capacitor core, a fixed plate, a core base, a support Plate, support spring, push plate and expander. The invention compresses or enlarges the pole plate spacing of each capacitive element inside the capacitor by changing the height dimension of the capacitor core (that is, the core compression coefficient), thereby realizing the adjustment of the core capacitance, and then automatically reducing the temperature coefficient of the capacitor.

The invention provides a forklift work safety control system which comprises a detection module, a hydraulic subsystem and a first input module. The detection module is used for acquiring mast heightdata or mast inclination angle data and transmitting into a control module; the hydraulic subsystem is used for receiving a command of the control module so as to drive a mast to lift up and down or adjust an inclination angle of the mast; the first input module is used for providing a forklift adjusting and levelling signal or a normal operation mode signal; and when the first input module givesout the forklift adjusting and levelling signal, the control module adjusts the work of the hydraulic subsystem according to the mast height data or the mast inclination angle data acquired by the detection module so as to drive the mast to lift up and down or adjust the inclination angle of the mast. The forklift work safety control system provided by the invention solves the problems that sincean existing forklift fork is not at the horizontal position, cargoes are easily squeezed or damaged due to throw, or the cargoes fall down to cause accidents due to lifting operation when the mast ofthe forklift is at a forward leaning state.

The invention discloses polishing slurry, which comprises the following parts: grinding particle, carrier and double-functional group agent. The invention reduces the density of grinding particle in the polishing slurry, which decreases the constructing pressure and guarantees the expecting grinding velocity.

The invention provides a cavity part machining tooling and a machining method thereof. The cavity part machining tooling comprises a base seat (3), the base seat (3) is provided with a vertically-arranged threaded through hole (31), and the cavity part machining tooling further comprises a handle (1) in threaded connection with the threaded through hole (31), a sliding block (32) slidably arrangedinside the threaded through hole (31), a fourth spring (4) arranged inside the threaded through hole (31) and connected between the handle (1) and the sliding block (32) and a second cutter rod (19)fixedly installed at the bottom of the sliding block (32) and coaxially arranged with an angle trimming cutter (17) used for performing square groove angle trimming machining on the cavity side wall of a workpiece (22). The cavity part machining tooling and the machining method thereof are novel in design and high in practicability.