Abstract: An evaporative cooling system includes an evaporative cooler liquid-to-air membrane energy exchanger (LAMEE), a first liquid-to-air heat exchanger (LAHE), and a cooling fluid circuit. The evaporative cooler LAMEE is disposed within a scavenger air plenum that is configured to channel a scavenger air stream. The first LAHE is disposed within a process air plenum that is configured to channel a process air stream. The cooling fluid circuit is configured to circulate an evaporative cooling fluid between the evaporative cooler LAMEE and the first LAHE. The evaporative cooler LAMEE is configured to utilize the scavenger air stream to evaporatively cool the cooling fluid. The first LAHE is configured to receive the cooling fluid from the evaporative cooler LAMEE and to allow the cooling fluid to absorb heat from the process air stream to cool the process air stream.

Abstract: A core body includes a structure having a plurality of connected unit cells. At least one unit cell has one or more sidewalls that are curved and define a portion of an inner passageway within and through the unit cell. The one or more sidewalls define multiple orifices and include a cone disposed between at least some of the orifices. A dimple is defined along an outer surface of the unit cell at the cone. The outer surface at least partially defines an outer passageway that is sealed from the inner passageway by the one or more sidewalls. The one or more sidewalls are configured to transport one or more of thermal energy from a first fluid or a component of the first fluid flowing in the inner passageway to a second fluid flowing in the outer passageway without the first fluid mixing with the second fluid.

Abstract: A heat exchanger includes a hollow pillar shaped honeycomb structure, a first outer cylindrical member, an inner cylindrical member, an upstream cylindrical member, a cylindrical connecting member and a downstream cylindrical member. The inner cylindrical member includes a tapered portion whose diameter is reduced from a position of a second end face of the pillar shaped honeycomb structure to the downstream end portion side. A ratio of a difference between an inner diameter of the downstream end portion of the inner cylindrical member and an inner diameter of the downstream end portion of the upstream cylindrical member to the inner diameter of the downstream end portion of the upstream cylindrical member is within ±20%.

Abstract: A shell and plate heat exchanger includes a shell forming an internal space, and a plate stack housed in the internal space. A plurality of refrigerant channels communicate with the internal space, and a plurality of heating medium channels are blocked from the internal space. Each of the refrigerant channels is adjacent to an associated one of the heating medium channels with heat transfer plate interposed between. Each of the heat transfer plates includes a first communication hole that communicates with the heating medium channels to introduce the heating medium, a second communication hole formed below the first communication hole that communicates with the heating medium channels to emit the heating medium, and a guide crossing between the first and second communication holes to guide the heating medium that has flowed into the heating medium channels from the first communication hole toward side portions of the heat transfer plate.

Abstract: The present invention reduces and mitigates thermal stress generated at joint portions between a header plate and a flat tube of a heat exchanger. In a direction of a vertical center axis passing the center of the inside of a flat tube, positions of first brazing parts are set to be closer to the center of the flat tube in the direction of the vertical center axis than positions of edge brazing parts. Accordingly, the thermal stress concentrated at the joint portions between short sides of the flat tube and the header plate is dispersed to other portions.

Abstract: A heat transfer system includes a steam chamber that communicates in an open-loop arrangement with a first steam source for supplying steam to the steam chamber, the steam chamber including a steam exit for supplying steam to air at atmospheric pressure. A heat transfer tube communicates in a closed-loop arrangement with a second steam source for supplying steam to an interior surface of the heat transfer tube, the heat transfer tube vaporizing condensate forming within the heat transfer system back to steam that is supplied to the air via the steam exit. The outer surface of the heat transfer tube is configured to contact the condensate and vaporize the condensate back into steam, wherein the heat transfer tube includes a plurality of pockets formed on the outer surface of the tube, each pocket including a pocket exit/entry portion having a smaller cross-sectional area than the cross-sectional area of the pocket at a root portion thereof adjacent the outer surface of the tube.

Abstract: A heat exchanger includes tubes, a tank, and a prevention plate arranged inside the tank and contacting end surfaces of the tubes to prevent heat medium from flowing into the tubes in a certain region. Flow paths are formed in each tube and arranged in a width direction of the tube. The prevention plate includes a deformable portion elastically deformable by contacting an edge of the opening at a time of inserting the prevention plate into the tank from the opening. The deformable portion of the prevention plate that has been inserted into the tank is restored and receives a reaction force from an inner surface of the tank such that the prevention plate is shifted along the width direction by the reaction force.

Abstract: A heat exchanger system for transferring heat between two fluids that includes at least two heat exchangers each having a top and bottom. The heat exchangers include a fluid collector, multiphase distributor, and a plurality of multi-duct tubes coupled therewith. One fluid flows around the multi-duct tubes, while the other fluid flows within the multi-duct tubes, with heat transfer occurring via a fluidically separate coupling of the fluids. One heat exchanger is configured with an upward flow design, for heating, in which the two fluids flow opposite to gravity and parallel to each other through the heat exchanger (bottom to top). The other heat exchanger is configured with a downward flow design, for cooling, in which one fluid flows opposite to gravity through the heat exchanger (bottom to top) and the other fluid flows anti-parallel to the one fluid with gravity through the heat exchanger (top to bottom).

Abstract: The present disclosure provides a heat exchanger, including: a plurality of flat pipes, wherein, the plurality of flat pipes are arranged at intervals; first sealing cushion blocks, arranged between two adjacent flat pipes, wherein the first sealing cushion blocks are located on end portions of the flat pipes, so as to seal gaps between two adjacent flat pipes by means of the first sealing cushion blocks; and a flow collecting shell, provided with a first opening portion, wherein at least part of the first sealing cushion blocks and the end portions of the flat pipes are all plugged into the first opening portion, so that the flow collecting shell, the flat pipes and the first sealing cushion blocks form a flow collecting channel in an encircling manner.

Abstract: An embodiment of a heat exchanger assembly includes a first manifold adapted for receiving a first medium, a core adapted for receiving and placing a plurality of mediums, including the first medium, in at least one heat exchange relationship, and a core meeting the first manifold at a first core/manifold interface; The mounting structure supports a heat exchanger, and is metallurgically joined to at least one heat exchanger assembly component at a first joint integrally formed with the mounting structure.

Abstract: The present disclosure relates to a thermal emissivity control system. The system may have a segmented array that makes use of a thermally conductive base layer configured to be connectable to an external heat generating subsystem, with the base layer including a thermally emissive surface. The array may also have a plurality of actuation elements at least one of positioned on or adjacent to the thermally emissive surface. A plurality of movable shutter elements is disposed adjacent one another in a grid pattern, and controlled in movement by the actuation elements to create gaps of controllably varying dimension therebetween. The shutter elements control at least one of a magnitude of, or direction of, thermal radiation through the gaps.

Abstract: The present disclosure relates to a device for reducing fouling in tubes of a heat exchanger and heat exchangers including such anti-fouling device(s). The anti-fouling device includes an elongated displacement body insertable in the heat exchanger tube to reduce the flow cross-sectional area in a portion of the tube. It further includes a mount connected to the elongated displacement body for attaching the device to an end of the heat exchanger tube. The mount is configured to hold the displacement body, when inserted into the tube, in a spaced relationship to the inner surface of the tube. The disclosed anti-fouling devices effectively reduces fouling in heat exchangers in a reliable manner over an extended period of time without requiring maintenance or external controls, can be provided at relatively low cost, is easily installable and can be retrofitted also to existing heat exchangers.

Abstract: A horizontal collecting-while-sending-ball water separator, has an outer barrel, the side wall of the outer barrel has a ball collection opening, a water outlet, a ball sending opening and a water inlet; a water inlet and outlet control valve connects to the water outlet and the water inlet, the control valve comprises an inner barrel, the inner barrel is divided into a first conduit and a second conduit, the side wall of the first conduit has two first openings, the side wall of the second conduit has two second openings; the separator can collect and send balls synchronously.

Abstract: Breechblocks for firearms, the breechblocks including a barrel axis and a barrel extension, including a bolt with cam pin and cam pin axis, and a bolt carrier which has at least one end face and an assembly groove and a substantially S-shaped cam slot with a locked position and an unlocked position, wherein the assembly groove at the locked position of the cam slot is subsequently formed substantially from behind in the forward barrel direction and is essentially U-shaped.

Abstract: A hydraulic recoil device for a handgun or pistol is provided. The device includes a cylinder defining an interior hollow compartment having a first end and a second end. The device further includes a first resilient member; a piston assembly arranged adjacent to the first resilient member and at least partially within the cylinder, where the piston assembly includes a piston head, a piston rod, and a piston cap; a compressible accumulator arranged within the cylinder; and a second resilient member outside of the cylinder. When the piston rod is displaced toward the first end of the cylinder in operation, a hydraulic resistance is generated by the piston assembly, and when a first end of the second resilient member is displaced toward the second end of the cylinder in operation, additional resistance is generated by the second resilient member.

Abstract: System for a delayed-opposed-piston gas action assembly. Specifically, the system is comprised of a bolt, a bolt carrier, a gas block, a bolt piston, and a vent piston. Each piston will have a corresponding piston cup that will act on the piston from the gas discharged from the round. Each piston will also have a corresponding spring to bring the piston back to its original position after the gas has dissipated from the system. During the process of the firearm being discharged, the two pistons will act on the bolt carrier, causing the casing of the round to be ejected from the firearm, and a new round to be loaded into the firearm, so that the firearm can be discharged again.

Abstract: A rifle bolt disassembly tool is provided. The rifle bolt disassembly tool has a fulcrum having a tooth and a lever. The tool is suitable for allowing a user to unscrew the bolt plug of the rifle in a safe and efficient manner. The present tool is especially suitable to remove the bolt plug of a Remington Model 700 rifle, but may also be used with other rifles.

Abstract: The invention relates to handguns and is the firearm has the shorter length compared to systems in which the magazine is located in front of the trigger guard. Besides, the proposed firearm has the ability to quickly disassemble into the main components, which significantly reduces the dimensions of the firearm in the transport position. In addition, the magazine is also protected from loss when moving with the assembled firearm. These results are achieved by the fact that the magazine of the firearm is located above the trigger guard, while access to the magazine is carried out only when the firearm is opened by turning the upper part of the receiver relative to its lower part. At the same time, the upper part of the receiver can be easily detached from its lower part to reduce the dimensions of the firearm during transportation.

Abstract: Magazine holders for firearms, including two actuating elements and a spring, where the first actuating element-has a locking extension for the temporary attachment of a magazine and a first actuating extension, the second actuating element has a second actuating extension, and where the two actuating elements are (operatively) connected to one another such that the locking extension releases the fastening of the magazine counter to the tension of the spring during a release movement onto one of the two actuating elements. Each actuating element is designed as one piece, in that the second actuating element has a bearing extension on an end section facing away form the second actuating extension and connected by a connecting section, and the first actuating element has a substantially shape-complementary bearing opening for receiving the bearing extension in an assembling position.

Abstract: The present disclosure provides systems and techniques for an electromechanical trigger that is implementable in a gun. The gun may include a trigger mechanism, a trigger sensing mechanism, and a fire control manager. The fire control manager may identify a trigger break based on the trigger sensing mechanism generating a voltage, and the fire control manager may transmit a signal to an actuator mechanism based on the trigger break. A detent mechanism may be dislocated in response to a force applied to a trigger mechanism, and the trigger sensing mechanism may generate the voltage based on the dislocating of the detent mechanism. Dislocating the detent mechanism may correspond to satisfying a trigger break threshold. The actuator mechanism may be displaced in response to the signal, and displacing the actuator mechanism may result in a projectile being propelled from the gun.

Abstract: A barrel for a firearm having a bore axis, a cartridge chamber, and an integrally formed locking sleeve with a locking space, with locking lugs, the locking sleeve has recesses for bolt head lugs of a bolt head to be inserted. The barrel has, in the direction towards the cartridge chamber, at least two centering ramps in the transition area between the recess for the lugs and the locking space in an oblique manner with respect to the bore axis. Further the recesses forming the bayonet-type groove, viewed in the direction of the bore axis, each have a profile which comprises an elliptical segment. The disclosure additionally provides a production process for such a barrel.

Abstract: A system for installing a first muzzle accessory on a barrel of a firearm having a second muzzle accessory mounted thereto comprises an adapter configured to attach to the second muzzle accessory and a first muzzle accessory configured to attach to the adapter. The adapter serves to temporarily deactivate the second muzzle accessory when the adapter is attached to the second muzzle accessory.

Abstract: The present invention relates to an arrow feeding device for crossbows. The feeding device positions the arrows in the feeding pall. The feeding device includes a feeding part which has a path defined through the top end and the bottom end of the feeding part. The path is defined by two sidewalls and each sidewall of the path includes a rib extending therefrom. The two ribs are located close to the rear end of the feeding part. The arrow includes two grooves defined in the tail thereof so that the two ribs of the path are received in the two grooves of the arrow. The arrow is properly positioned and restricts from shifting in the path so as to improve preciseness of shooting.

Abstract: A dart pistol utilizes an assembly of a pistol body, a launch channel, a carriage, a mainspring, an operating bar, an engagement feature, a trigger member, and a retainer pin to adapt a conventional game of throwing darts into a shooting sport. The launch channel is formed into the pistol body such that the carriage, mainspring, and operating bar are slidably mounted between a fore body end and a rear body end. The mainspring is connected between the carriage and the fore body end to impart a launching force to at least one projectile via the carriage. The retainer pin is laterally mounted into the channel to capture the engagement feature of the operating bar until dislodged by the trigger member. The trigger member is pivotably mounted to the pistol body, operatively coupling the trigger member to the operating bar to fire the dart pistol.

Abstract: A shooting game system using an airsoft gun and an auto tracer control method are provided.

Abstract: Airguns are provided with semi-automatic action.

Abstract: Sling sliders have a body defining an elongated sling strap passage configured to receive an elongated sling strap, the elongated sling strap passage defined at least in part by an elongated bar having opposed ends, the elongated bar defining an elongated cord passage extending between the opposed ends of the elongated bar, a cord received in the elongated cord passage, and the cord having a received portion within the elongated cord passage and a handle portion extending outside the elongated cord passage such that the handle portion operates to exert a motive force on the body. The sling slider may be a triglide. The body may have three parallel bars, and the elongated bar defining the elongated cord passage may be positioned between a second bar and a third bar. The body may define a pair of elongated sling strap passages on opposite sides of the elongated bar.

Abstract: The invention is focused on simplifying the buttstock design and improving its reliability. The technical result is achieved by the construction of the adjustable swivel cheek piece buttstock, that includes a body with a spring-loaded link in the base, which interacts with the trigger button, located at the front of the housing, which interacts with a swivel platform with a cheek piece mounted on it, a platform locking device, and a torsion spring, one end of which is fixed to the axle located in the stock body, and the second end is fixed to the swivel platform. The number of parts in the proposed model is significantly reduced, the energy of the spring is transmitted not from the driving pinion to the driven one, as in the prototype, but directly from the axle to the swivel platform. Thus, the reliability of the mechanism is increased.

Abstract: Arming apparatus is installable between twin arming units of an ejector release unit in a military aircraft, and a single fuzing unit of a store. The arming apparatus comprises sequentially breakable links which ensure reliable ejection of the store in an armed state, or jettisoning of the store in an unarmed state, as desired.

Abstract: A high clarity rifle display beam splitter may include a housing defining a central conduit extending along a length of the housing. The central conduit may include first and second ends. A pellicle frame may be disposed within the central conduit. The pellicle frame may include a surface that is at an angle relative to a longitudinal axis of the pellicle frame. The pellicle frame may be secured to the housing along a central spine of the pellicle frame with a remaining portion of the pellicle frame floating relative to the housing to form an air gap between the pellicle and the housing. A pellicle may be mounted on the surface such that the pellicle is angled relative to the longitudinal axis. The pellicle may have a thickness of less than about 100 microns. Optical window may be coupled with each of the first and second ends.

Abstract: Disclosed is an accessory mount configured to attach a flashlight to the handguard of a firearm, in particular a rifle. An example accessory mount comprises: a base configured to be removably coupled to a handguard of a firearm; and an accessory interface configured to provide multiple lateral mounting positions for an accessory, such as a flashlight. The accessory interface comprises two parallel rows of overlapping holes. Each of the two parallel rows of overlapping holes includes at least two overlapping holes aligned linearly with each other, each of the overlapping holes includes a tapered inlet.

Abstract: A firearm accessory mount comprising: a base configured to removably connect to a firearm rail; an upper mount portion connected to the base; the upper mount portion connected by way of a stabilizing tapered feature.

Abstract: A ballistic plate of a bulletproof jacket includes a bulletproof distribution pad and a shock-absorbing pad in which the bulletproof distribution pad is configured by sequentially arranging from the front a heatproof shock-absorbing sheet at the front, a heatproof distribution sheet having high heat resistance and distributing shock, and a bulletproof sheet absorbing and distributing shock; the shock-absorbing pad is configured by sequentially arranging from the front a first heatproof shock-absorbing sheet at the rear, a flex pelt absorbing shock, and a second heatproof shock-absorbing sheet at the rear; and the heatproof shock-absorbing sheets at the front and the rear are each formed by attaching a polyurethane-based resin film or a PVB film to one or more of the front surface and the rear surface of an aramid fabric woven such that aramid fabric threads are arranged to cross each other at right angles in a crossover pattern.

Abstract: A ballistic material is made from spunlace nonwoven fibers mechanically entangled into a woven ballistic fabric. The spunlace nonwoven may comprise low denier fibers providing for a highly dense ballistic product.

Abstract: A barbed or razor wire crossing apparatus and system that enable the safe passage for a user either over or between barbed or razor wire. Also a game carrying kit that enables a hunter to field dress an animal and to prevent or greatly limit the spread or exposure of the hunted game's blood during transportation.

Abstract: A conducted electrical weapon (“CEW”) comprises one or more switch devices and a charge storage circuit for delivering a stimulus signal via a deployed electrode. A charge may be stored in the charge storage circuit. A first switch device of the one or more switch devices may be selectively turned on according to the charge of the charge storage circuit. The stimulus signal may be delivered via a current flow path comprising the first switch device and the deployed electrode according to the charge of the charge storage circuit.

Abstract: An electric shock round utilized in projectile launching systems suitable for ranged non-lethal applications is presented. The electric shock round contains a projectile housing, a nose cap, an electroshock generation unit, and a plurality of electrodes. The electroshock generation unit is connected within the projectile housing. The plurality of electrodes is connected to the electroshock generation unit, opposite to the projectile housing. The nose cap is connected adjacent to the projectile housing, where the nose cap houses and secures the plurality of electrodes.

Abstract: A frame for a shaped charge has a body with a cylindrical configuration, the body having a central passage along an axis thereof and a track extending in a direction parallel to the axis for installing and removing a shaped charge, the track having a snap structure. The frame provides a slide-in snap-in charge receptacle for a shaped charge.

Abstract: A penetrator for a projectile with a tail assembly, wherein the penetrator includes at least one outer body that acts in a terminal ballistic manner for attacking an armored target, in particular a battle tank with reactive armor. The cross-section of the outer body perpendicular to a longitudinal axis of the outer body is a hollow cross-section. The hollow cross-section of the outer body has an area, and an area moment of inertia of the hollow cross-section is increased in comparison with a solid cross-section of at least equal area, so that the outer body has an increased bending stiffness on account of the increased area moment of inertia.

Abstract: An article of manufacture for providing a region- and species-specific fish-measuring device with fish catch or release rules is disclosed. The article has a base member having a top surface and a first end, a starting end surface member coupled to the first end of the base member, and a measuring ruler along the top surface of the base member. The starting end surface member extending upward perpendicular to the top surface of the base member. The measuring ruler having a measuring starting position from the starting end surface member, a plurality of measuring sections, and a legend. The plurality of measuring sections each contain one or more graphic representations of fish species legal to keep when a measured fish is at least as long as the measuring section fish species to which the measured fish belongs.

Abstract: A support assembly for a measuring device may include a first retention body, a second retention body, and a wire member having a foot portion, legs and engagement members. The foot portion may extend between distal ends of the legs, and the engagement members may extend from respective proximal ends of the legs. The first and second retention bodies may each include a retaining channel extending at least partially therethrough to receive respective ones of the engagement members. The wire member may be operably coupled to the first and second retention bodies to be transitioned between a retracted state and a deployed state in which the foot member is configured to engage ground upon which the measuring device is operable adjacent to a wheel of the support assembly.

Abstract: A measuring device for measuring a width (W) between a first edge (4) and a second edge (5) of spaced apart opposed edges (4, 5) of a slot (16) in a product (1?), comprising: a measuring part (18), with a measuring detector and a display (28), and provided with a first tab (37) configured to enter into the slot (16), and a slide (29), defining a longitudinal axis (X), being arranged so as to be adjustable relative to the measuring part (18) along the longitudinal axis (X), and provided with a second tab (46) being configured to enter into the slot (16). The slide (29) is adjusted so that a first surface (44) of the first tab (37) contacts the first edge (4) and a second surface (49) of the second tab (46) contacts the second edge (5). A distance (d) between the first surface (44) and the second surface (49) corresponding to the width (W) is detected by the measuring detector, and the value of the width (W) is displayed by the display (28).

Abstract: A distance sensing apparatus including a substrate, a light source, a sensing device and an encapsulation structure is provided. The sensing device includes a sensing element and a light-shielding structure. The light source disposed in a light source region emits a beam for irradiating an object to be sensed. The light-shielding structure is disposed on the sensing element. The light source and the sensing device are disposed in the encapsulation structure. The encapsulation structure has a first opening corresponding to a sensing region. The light-shielding structure is disposed between the sensing element and the first opening, and the sensing element receives a beam to be sensed reflected by the object to be sensed and penetrating the first opening and at least a light-transmitting hole of the light-shielding structure. The light source region and the sensing regions are interconnected in the encapsulation structure.

Abstract: The present disclosure is directed to a system and method of controlling a facial recognition process by validating preconditions with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's face and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's face and the mobile device or to determine the reflectivity of the user's face. Comparing the distance to a range of distances corresponding to normal operation of the device or normal reflectivities associated with human skin tones can reduce the number of false positive activations of the facial recognition process. Furthermore, a multiple zone ranging sensor can produce a face depth map that can be compared to a stored face depth map or can produce a reflectivity map that can be compared to a stored face reflectivity map to further increase power efficiency and device security.

Abstract: An optical unit includes an input portion configured to have measurement light having a wavelength extending from an ultraviolet region to a visible region input thereto, an optical system configured to condense the measurement light in a state where a chromatic aberration is caused to occur, and an opening portion configured not to image light having a wavelength in the visible region and to image light having a wavelength in the ultraviolet region of the measurement light having a chromatic aberration having occurred therein.

Abstract: A method that is able to measure the gap and flush of vehicle parts by means of a measuring tunnel. The method is able to determine the coordinates in 3D of the edges or ends of two adjacent parts of a vehicle. The measuring tunnel includes several video cameras, LED lights, a conveyor, a position encoder that measures the movement of the vehicle; a total station that measures fixed points of the measuring tunnel structure; a calibration chessboard and a calibration pattern; processing and storage means to store images taken by the video cameras, Computer-Aided-Design files of the vehicles and an edge recognition algorithm.

Abstract: An internal deformation analysis experimental device and method for a three-dimensional particle material, including an internal deformation analysis experimental device for a three-dimensional particle material includes: several particles, which are transparent solids; an infiltration liquid, the refractive index of the particles being the same as that of the infiltration liquid; a container, configured to accommodate the particles and the infiltration liquid; a laser device, arranged on an outer side of the container, the infiltration liquid being able to generate fluorescent light when laser emitted by the laser device irradiates the infiltration liquid; a recording apparatus, arranged on the outer side of the container and configured to collect and acquire a sequential image of the particles; and a computing terminal, the recording apparatus sending the acquired sequential image of the particles to the computing terminal, and the computing terminal constructing a three-dimensional particle system through

Abstract: A fiber optic voltage conditioner, and method therefor, generally relate to voltage conditioning. In such a fiber optic voltage conditioner, there is a laser, and an optical circulator is coupled to receive a light signal from the laser. A controller is coupled to the laser and is configured to generate first control information for wavelength-drift control of the laser. A data acquisition module is coupled to the controller and is configured to generate second control information for the controller for adjustment of the first control information. A photodetector is coupled to the optical circulator to receive a returned optical signal and is coupled to the data acquisition module to provide an analog output signal thereto. The photodetector is configured to generate the analog output signal responsive to the returned optical signal. The data acquisition module is configured to generate the second control information using the analog output signal.

Abstract: A method for controlling a three-dimensional scanning system includes a scanning step of scanning a target by using a three-dimensional scanner and acquiring a distance between the three-dimensional scanner and the target, and a switching step of switching an activation state of at least one feedback means on the basis of the distance.

Abstract: An alignment tool for use with a solar panel support rack, configured to allow for the easy and rapid positioning of the support rack into proper alignment to receive solar panels.