Abstract: A method is disclosed for fabricating rib structures of different sizes for a segment of an airfoil having both a spanwise taper in thickness and at least one aerodynamic surface having a substantially constant radius of curvature in the chordwise direction. In one embodiment a plurality of rib webs are formed at least as large as the largest rib structure. Each of the rib webs is trimmed at their lower edges progressively greater amounts to form rib webs of a proper size for each rib structure. A plurality of upper and lower rib caps as well as front and rear spar attachment brackets are formed and attached to the trimmed rib webs. In another embodiment the rib webs are formed with either or both integral upper rib caps and spar attachment brackets. In still another embodiment a plurality of rib webs are formed and joined together by twos by inverting one rib web to the other and progressively overlapping their lower edges and fastening them together to form properly sized rib structures.

Abstract: A method of casting decorative emblems is disclosed wherein a fluent, viscous, plastic material is dispensed by a means having a plurality of dispenser orifices onto a foil substrate typically lithographed or screen printed with an array of designs. The cast plastic melds together and forms a meniscus which, when hardened, gives a lens effect to the foil shape. The process is well adapted for automated, mass production of foil backed emblems.

Abstract: A composite metal sheet or plate is manufactured by completely immersing an assembly of parallel or substantially parallel metal core sheets in molten metal at a lower melting point than the metal of the core sheets, and after the molten metal has solidified reducing the thickness of the ingot by hot rolling in a direction generally normal to the planes of the core sheets. The method has a particularly useful but by no means exclusive application in the production of reinforced aluminium alloy sheets and plates.

Abstract: An improved head assembly, for an electronic component lead cutting and clinching mechanism, having an improved construction for detection of lead absence or presence incorporating pivotal anvils which complete electrical circuits during the cutting and/or clinching of the component leads. The pivotal anvils cooperate with pivotal cutter-former arms which are actuated by a reciprocable driver. The driver includes a receiving and orienting tip for aligning the scrap portions of the leads for evacuation from the head assembly. Adjustable eccentric pins allow adjustment of the anvils for manufacturing tolerance corrections and for lead receiving orifice corrections.

Abstract: A disk magazine particularly useful as a tool holder for a universal drilling and milling machine comprises a disk having a plurality of tool holders disposed at fixed intervals on the outer perimeter and a drive means for rotating the disk in steps corresponding to the spacing between the tool holders. The disk comprises a connected pair of spaced apart flat plates. In a preferred embodiment, at least one of the plates is an annular plate having recessed regions on its inner periphery and the drive means comprises a Geneva drive mechanism for engaging the recessed regions. This disk magazine can be conveniently mounted on a universal drilling and milling machine with the disk horizontal above the headstock.

Abstract: In a machine tool with an automatic tool change function, a rotatable tool spindle carries a movable key engageable with a key-way formed on a tool. A tool changing arm, serving as a tool support device, friction-rotatably supports at least one tool for selectively inserting and removing same into and from the tool spindle. When a tool change operation is to be performed, rotation of the spindle is changed into a predetermined speed permitting key-engagement. A detecting device is provided for detecting movement of the movable key to confirm engagement of the movable key with the key-way of the tool. A clamp device clamps the tool inserted into the spindle in response to the detecting device. After the tool is clamped on the spindle, rotation of the spindle is changed into a machining speed. A confirming device is provided for confirming that the spindle is reached at a predetermined angular position during rotation thereof.

Abstract: Low-resistance diffused regions useful as current-supply paths in IC MOS semiconductor circuits in silicon-gate technology are produced by forming a metal silicide on a doped polysilicon layer positioned on a substrate, applying a SiO.sub.2 layer over the silicide layer, structuring the resultant SiO.sub.2 -silicide-polysilicon triple layer in such a manner that areas of the substrate where the low resistance diffused regions are desired remain covered, thereafter executing gate oxidation and completing fabrication of the desired circuit.

Abstract: A method for fabricating a semiconductor device of relatively small scale. A conductivity layer is deposited on a substrate of a polarity. Regions of opposite polarity are partially formed on either side of the conductor layer. Vertical layers are formed to partially cover the regions of opposite polarity and are located adjacent to the conductor layer. Extensions of the regions of opposite polarity are formed such that a portion of the extension is defined by the location of the vertical layers.

Abstract: Electric heater assemblies to encircle and warm hermetic compressor housings are fabricated by the selection of a sheathed tubular heating element of a length of the same order of magnitude as the circumference of the compressor housing to be encircled and a bend is introduced near the end of the selected element. An elongated tensioning member and the element bend are positioned closely adjacent one another and a mass of non-metallic material molded about the element bend and a portion of the tensioning member to join the member to the selected element. Opposite ends of the tensioning member may be joined to the heating element near the opposite ends thereof by introducing a similar bend near the end opposite the one end of the selected element and similarly juxtaposing the tensioning member and bend and thereafter molding a further mass about the element bend and tensioning member so as to form a loop for encircling the housing.

Abstract: A fluid flow sensing device having a housing provided with a fluid flow passage therethrough defined by an inlet and outlet separated by a valve seat controlled by a movable valve member that is operated by a pressure differential between the inlet and the outlet acting on a flexible diaphragm carried by the housing, the device having an electrical switch construction operatively associated with the valve member and having the switch contacts thereof disposed in the fluid flow passage so as to be exposed to fluid therethrough and being actuated by the pressure differential acting on the flexible diaphragm. The switch contacts comprise a pair of spaced apart contacts carried by the flexible diaphragm and a bridging contact member carried by the valve member and being adapted to make contact with the pair of contacts and thereby bridge the pair of contacts to close the switch construction to operate electronic switching, the electronic switching being disposed inside the housing.

Abstract: An apparatus for automatically inserting electrical contacts into an electrical connector, the apparatus including a vibrating bowl (12, 112) which orients the contacts by vibrating and releases the oriented contacts one at a time to a contact loading position and guide device extending from the contact loading position to a contact unloading position adjacent the connector for guiding the contact in a forward direction to a cavity of the connector. The guide device includes a slide member (160) having a slide rod (162) slidably supported in a housing (142) for axially reciprocating each successive contact from the contact loading position to the contact loading position. At the contact loading position the contacts are propelled by an air pressure and guided to the unloading position adjacent the connector and into the connector.

Abstract: A circuit board is fabricated from a metal layer laminated to an underlying dielectric substrate. A stamping die, or roller, formed with a deeply impressed pattern of circuit paths, is indented through the metal and into the substrate. The metal is formed into circuit path conductors, electrically isolated from one another by insetting sheared away portions of the metal into indented portions of the substrate.

Abstract: To permit easy attachment, for example, by soldering, of a connecting lead wire to a conductive track on a ceramic plate connected closely adjacent to another plate which may also be ceramic, the first ceramic plate, at least, is bent away from the other ceramic plate at the connecting portion during manufacture; the manufacturing process includes heating the plate to be bent away to be in plastic condition and then applying a bending force to form the bend, permitting the so bent plate to cool, and joining the so-bent plate to the other plate with which it is to form a composite, for example, by glass melt. The bending force may be gravity, by permitting the unsintered plate, upon heating, to fall on a curved surface; or the bending force can be generated by applying a layer of a material having differential shrinkage to the flat, unsintered plate, and heating the composite, so that, upon differential shrinkage, the ceramic plate will be bent away from its originally plane, flat state.

Abstract: A replaceable insulating sleeve is disposed around the lower end of a drill string used in drilling a well. The sleeve is restrained from rotating relative to the drill string, but can be released and quickly slipped off the drill string in the field to permit rapid replacement if damaged, or if alternate equipment is required. The sleeve carries sensing means for measuring a characteristic of formations penetrated by the well.

Abstract: A tool for slitting a casing of a cable. A knife blade is held between a pair of holder halves. Slots in the holder halves along a part line form an opening between the holder halves of a size to receive the cable for movement axially through the opening. A corner portion of the knife blade extends from an edge of the opening transversely of the opening a sufficient distance to slit the casing of the cable without penetrating conductors of the cable as the cable is advanced along the opening.

Abstract: A foldable push dagger includes an elongated, movable, sharpened dagger blade secured to an elongated dagger handle. In a fully closed position, the longitudinal axis of the blade is parallel to the longitudinal axis of the handle such that the blade is disposed entirely within the handle. In a fully opened position, the longitudinal axis of the blade is perpendicular to the longitudinal axis of the handle such that the sharpened portion of the blade is disposed exteriorly of the handle and the push dagger assumes a "T" configuration. In its fully opened position, the blade is releasably secured in the handle against substantial relative movement therewith.

Abstract: A lettering device of the type having a keyboard for choosing the symbols to be written, comprising a writing part, which may be separated from said keyboard, wherein the pen is selectively moved by two geared motors, in two coordinate directions, to correspond to the symbols to be drawn. The writing part is adapted to be attached to the symbol head of a drafting machine, wherein two motors, that selectively move the writing pen along cartesian coordinates, are arranged stationary, relative to each other. The writing arm which holds the writing pen is movable, in the one coordinate direction, upon a first movable guide track that itself is movable in the other coordinate direction by a first motor, and also movable in the other coordinate direction upon a second guide track, that is movable in the direction of said one coordinate by a second motor.

Abstract: An ellipse drawing device is disclosed which utilizes mounted on its lower surface a rotary arm and an elongated plate in conjunction, generating a straight line motion of a point on the elongated plate, grouped in perpendicular relation to the grooves on its upper and parallel surface to guide a stylus carrying arm in the desired course.

Abstract: A gauge including an outer tubular casing that houses a gauging armset having a movable arm with a feeler adapted to touch the piece to be checked. An element of the armset is clamped to a wall of the casing by means of rivets.The gauge can be fixed to a support by means of connection screws coupled to the rivets.

Abstract: A centering device for locating a center line of a workpiece to be aligned with the center line of a milling cutter along the direction of cut in a horizontal milling machine. The device comprises a centering pointer and an aligning fixture to be used in combination with a dial indicator. The centering pointer is mounted onto the aligning fixture adapted to be attached to the milling cutter in aligning the center lines, wherein the center line of the milling cutter along the direction of cut is represented by the centering pointer and the center line of the workpiece can be brought to coincide therewith.

Abstract: A thread gauge for determining the proper length, taper, and diameter of a threaded member located on the marginal box and pin end portions of joints of casing or tubing. The threaded member of a joint usually has a thread length which can be defined by the distance the threads extend respective to a vanish point located near the end of the joint. The pin gauge of this disclosure is a conical body which has a smooth internal surface formed between a large and small diameter shoulder. The smooth surface defines a frustum of a cone. The box gauge is a second component of this invention, and has an external tapered surface formed between spaced shoulders which defines a frustum of another cone. Visual observable measuring means on the gauges determine that each of the opposed threaded surface of the joint is of proper length and nominal diameter, and is properly positioned respective to the vanish point of the threads.

Abstract: A device for holding a surveyor's range pole in a vertical position. The pole is held rigid relative to a tripod base by a single bracket. The bracket is seated on the apex of the tripod and includes a collar member attached to an underlying three channel frame. Three horizontally disposed screws thread through the three channeled frame to mutually engage a range pole at the center of the collar.Additionally, an extension arm may be secured to the top of the collar by means of an overlying pressure plate. The extension arm lies between two upright screws which pass through the pressure plate, and pressure is exerted on the extension arm by tightening wing nuts over the screws. The range pole is secured beyond the rim of the collar by passing it through a teardrop shaped aperture in the extension arm and pressing the pole against the edges of the teardrop shaped aperture by an adjustable screw threaded through the extension arm.

Abstract: Apparatus for digitally displaying inclination of a lift truck mast includes an inertial inclination sensor carried by the mast and a digital display module for operator viewing remote from the mast. The inclination sensor includes a disc pendulum pivoted for damping its movement, the disc having a wand extending from it for exaggerated movement about the pivot. A plurality of light responsive devices are provided for detecting the position of the wand for the purpose of determining the degrees of actual mast inclination with respect to a true vertical gravitational plumb line.

Abstract: A device for measuring height despite difficult visibility comprises a small portable water tank positioned at the location to be measured and a pressure transducer placed at a reference location and connected with the water tank by a hose, whereby the transducer outputs a signal voltage proportional to hydrostatic pressure and hence to the height of the first location. The output signal is amplified and converted to a digital value which is displayed by a digital display calibrated in terms of height.

Abstract: The present invention provides a method and apparatus for exposing laundry to be dried and/or laundry water to be heated to a source of radiation. In addition, the source of radiation is disposed so that it is transmitted substantially loss-free between the radiation source and the water or moisture which is to receive the energy. In one embodiment, a microwave generator is employed and is disposed as a compensation weight on the drum box of the drying and/or washing machine. Preferably, the drum box is made out of metal and has a plastic ring through which the microwave generator can transmit the microwave radiation. The microwave radiation passes through the plastic ring with relatively low loss and then passes through the air without loss to the moisture contained in the laundry in the drum, so that the laundry is heated up and dried by absorption. As a result, there is a considerable increase in efficiency.

Abstract: A lumber kiln is controlled by a digital computer which periodically changes the wet bulb set point so that the rate of change of moisture content is maintained approximately constant. Reversible fans which circulate air through the lumber are periodically reversed. When they are reversed, the signals from the temperature sensors are reversed so that the temperature from the sensor at the high pressure end of the circulating air path is always used. A plurality of kilns may be controlled by the same digital computer because the computer is insensitive to variations in the operating parameters of the kilns.

Abstract: A support device as disclosed, such as for use as an innersole for footwear, which provides cushioned support conforming to the shape of the wearer's foot to distribute the weight of the wearer substantially evenly over the supported area. At least one air cushion layer comprising closely spaced, discrete air pockets entrapped between plastic film is adhered to a layer of soft, flexible, open cell foam. A pressure sensitive adhesive is used which impregnates the foam layer and, when in use under pressure, coats the plastic film, thereby reinforcing it against leakage or rupture and conforming it semi-permanently in the pressure-distorted shape. Protective sheathing may be used, adhered to the outer surface of the air pocket layer by pressure sensitive adhesive.

Abstract: A footwear having an underside of the sole thereof covered by a friction pad comprised of interlaced or intertwisted, relatively stiff nylon fibers woven through a backing liner secured to the sole underside, while the lower, outer surface of the pad thus formed, serves to engage a slippery surface without possible slipping.

Abstract: A grubbing plow mounted on two lower arms and an upper attachment point of a 3-point tractor hitch includes a frame having (1) a horizontal pivotal bar journaled at opposite ends thereof on the lower hitch arms; (2) an upper crank arm; and (3) a lower member. The pivot bar is pivotally mounted for rotational movement about a horizontal axis. The upper crank arm and lower member are aligned and oppositely directed from the pivot bar.A knife-edged, V-shaped blade is rigidly attached to the lower end of the lower member and lies in a plane perpendicular to the length of the lower member.A hydraulic cylinder is connected between the upper attachment point and the upper end of the upper crank arm for forcibly swinging the blade in an arc around the axis of the pivot bar to engage and remove roots encountered within said arc.A force transmitting member is pivotally mounted to the frame and extends from the frame for contacting the ground on the side of the frame opposite from which the blade extends.

Abstract: A variable wing plow blade and mounting structure for attaching the plow blade to a tractor, snow grooming vehicle, and the like feature distribution of the load on the blade over a relatively wide area of the supporting structural members thereby to permit reduction in their size, weight and number and in their manufacturing and assembling costs while maintaining the essential structural strength, and are further characterized in the attainment of improved performance and utility in respect of independence of the plow blade height and pitch or roll, tilt and wing blade adjustments, and greater freedom of movement of the wing blades of the plow blade, both forwardly and rearwardly, from a position of alignment with the center section of the plow blade.

Abstract: A card holder for housing, for example, plastic patient identification cards which have on them vital patient information and tabbys, i.e., tabs which have on them room or bed numbers and which normally are adhesively affixed to the card holder is fabricated of metal, preferably stainless steel, and is of a size substantially corresponding to the size of the identification card to be removably supported by it. Being of metal, the useful life of the card holder is far greater than those of plastic. The card holder has parallel side edges, each of which has at least one and preferably two upstanding stops integrally formed therewith, which stops have a height substantially corresponding to the thickness of the identification card. These upstanding stops prevent lateral movement of the identification card with respect to the card holder.

Abstract: An apparatus for holding and displaying a poster of a generally flexible material, the apparatus including first and second generally identical members with a longitudinal generally V-shaped groove in a long edge thereof for receiving an edge of the poster therein with a suitable fastener urging the free ends of the groove together for captively retaining the edge of the poster. One of the members is provided with a hanger mechanism for suspending the assembled unit.

Abstract: Frame means for releasably retaining and exhibiting objects upon a display surface, with the frame means including angularly disposed edge members releasably secured together with corner members and with mounting brackets releasably secured to the edge members for temporarily mounting the frame means upon a display surface. The edge members include a generally "E" shaped member having a back with three fingers extending therefrom including inner, outer and intermediate fingers, and with the outer and intermediate fingers forming a partially enclosed channel therebetween. The corner members include a central arcuate segment with interlocking tabs extending from each end of the arcuate segment. The tabs include a segment of reduced thickness for engagement with the edge members in the partially enclosed channel. The mounting brackets are in the form of a generally open bilateral triangle with two elongated legs joined together at the apex.

Abstract: A two-ply stamp album page in which cut-outs in the upper-positioned ply form recessed compartments for maintaining the stamps in place therein, and wherein the compartments are completed by plastic strips attached in spanning relation across the cut-outs and functioning as partial closures or covers for the compartments. The recess of the compartments, as well as an inert chemical coating on the compartment surfaces adjacent each stamp rear adhesive surface, obviates any inadvertent adhesive attachment to said stamp surface, said recess preventing the direct application of weight or pressure upon the stamp as might contribute to said inadvertent attachment.

Abstract: A frame and protective enclosure is disclosed for artworks, which is particularly suitable for fragile reliefs and other three-dimensional works. The enclosure comprises a transparent shell secured to a backing board. The shell and board are secured and sealed together in a fashion which tends to protect the artwork from atmospheric contaminants. An improved structure is employed for securing the artwork to the backing board in such fashion that it subsequently can be removed without damage, even if the artwork is a paper sculpture or the like.

Abstract: A rotatable note holder for use in conjunction with grocery carts. The rotatable note holder is rotatably attached to either the handle bar of the cart or one of the outer rods of a panel of the grocery cart. The rotatable note holder back panel can be rotated either to a holding position where the user can easily see and reach the clipped coupons or can be rotated parallel to one of the sides of the cart and thereby out of the way.

Abstract: A picture album comprising picture carriers which are formed by flat cells of double-walled plastic film, the flat cells being filled with an elastic material and being joined together by strip-like weld areas which form a folding hinge means. According to the invention each two flat cells are joined by a weld area to form double flat cell arrangements. Further there is formed in the weld area of a double flat cell arrangement, an insertion opening which extends in the longitudinal direction of the weld area, for at least one further double flat cell arrangement, and there is provided in the weld area of the further double flat cell arrangement a respective slot extending inwardly thereof from each of the upper and lower edges whereby a plurality of double flat cell arrangements are adapted to be joined together to constitute a book form by insertion of at least one of the further double flat cell arrangements into the insertion opening.

Abstract: The present invention provides an improved firearm magazine with directed ring forces. A magazine tube is composed of a rectangular center section with a cylindrical housing section at each end of the tube. Helical springs are installed within the cylindrical sections to provide the biasing force required to feed rounds into a weapon. An alternate embodiment describes three cylindrical housing sections separated by two rectangular housing sections. The cylindrical housing sections are provided with the helical springs of unequal stiffness to provide a required unbalanced load distribution.

Abstract: A tandem dragnet comprises a main dragnet having an open rear end and a rear dragnet enveloping a rear portion of the main dragnet including the open rear end. Support lines for the rear dragnet are connected to the harness lines of the main dragnet.

Abstract: A mechanically operable animal trap which traps and disposes of small animals, such as rodents, in an environmentally safe manner and including a housing having a one-way entrance actuated by a treadle adjacent an inaccessible source of food and a ladder leading to a one-way chute connected to a source of disposal, such as water, for disposing of the animal in an economical, pesticide-free manner requiring little attention and supervision.

Abstract: A light fixture incorporating a motorized insect exterminator includes a frame, a light source, and a motor mounted on the frame. A drive shaft of the motor is connected to an end of a clear and pliable plastic impeller. A translucent plate is mounted between the light source and plastic impeller. The free end of the impeller is rotated between 2,000 and 3,600 RPM's by the motor, sweeping out a circular area in the proximity of the plate on the opposite side from the light source. Flying insects, attracted to the light source, fly toward the light source, slow down to land on the plate, fly through the circular area at a relatively slow speed, and are fatally hit by the rapidly revolving impeller. The impeller is flexible enough and light enough to not injure or cut a finger which comes in contact with the rotating impeller.

Abstract: A toy car wash for advancing a toy car along a car washing line, applying water to the car, brushing the car, and then rapidly spinning the wet car to remove water. The water is essentially confined within the toy by use of a transparent top cover, a water capturing bottom cover or pan, and effective water removal before the toy car exits the device. The spinning mechanism includes a rotatable cradle that receives the car, and retains it without physical attachment and without further action by the user while it is being spun dry. The device provides a series of separate player-controlled operations which affords continuous user involvement and a high level of play value.

Abstract: Stage apparatus for use with a stand-up doll figure where the doll figure not only moves across the stage area, but rotates successively in opposite directions and for different degrees of rotation to simulate life-like as distinguished from mechanical motion. The apparatus comprises a base having a stage mounted for rotation, mechanism for effecting rotation of the stage, a doll support disc mounted on the stage for rotation relative to the stage, an attaching arrangement on the support disc for releasably securing a stand-up doll figure to the disc for common rotation, and a cam arrangement between the support disc and the base which operates incident to rotation of the stage to effect rotation of the support disc and the doll figure. In one form the apparatus is arranged so that the movements of the disc and the doll figure tend to be different each time the doll figure passes across the stage area.

Abstract: A take-apart doll in which the doll's eyes remain closed until the parts of the doll are completely reassembled, at which time the doll's eyes open.

Abstract: A twirling disc adapted to be used by either a novice twirler or an expert twirler. The disc is provided with a pliable covering on one of its faces. The opposite face is provided with a hard covering. A novice twirler effects twirling of the disc by applying his twirling finger to the pliable covered face of the disc. An expert twirler engages his twirling finger with the face of the disc having a hard covering.

Abstract: An aerostat amusement device in the form of a ballast member including a resilient container adapted to contain a liquid such as water and having defined therein an opening sufficiently small to preclude flow of the liquid through the hole as a result of the surface tension of the liquid, but adequate to permit flow of the liquid through the hole in response to a pressure differential induced by deforming the resilient container to thus flow liquid into or out of the container in a carefully controlled manner, the ballast device being adapted to be secured to a balloon filled with buoyant gas to resemble an airship, the ballast device being accurately adjustable to maintain the balloon at a desired height by providing an equilibrium with the buoyant force generated by the balloon.

Abstract: A model booster rocket that is upwardly thrown by any mechanical means, and which at its apex height turns downward and its nose cone spreads open to eject a carried glider, the nose cone consisting of two pivoted jaws each having a weight that causes the jaws to spread apart when in a downwardly tilted position. Engaged teeth may be used to cause the jaws to move together. Magnetic tips may be used to lightly hold the jaws closed.

Abstract: An animated crying doll includes a hollow head, a hollow body connected at the neck and the head is formed with a face having a pair of eyes and a mouth defined therein. A liquid bladder is mounted in the head having a flexible wall and conduits in communication between the bladder and openings formed in the eyes for conducting liquid from the bladder to the surface of the eyes to resemble crying or tearing. Means is provided for forcing the liquid from the bladder through the conduits to the eyes and at least one arm of the doll is mounted for movement on the shoulder of the body for pivotal movement between a first position wherein the hand is adjacent the outer surface of the eye for wiping a tear therefrom and a second position downwardly thereof. Means is provided for manipulating the hand to rotate and a sound generator is mounted internally of the doll to produce a crying sound whenever liquid is forced from the bladder to the surface of the eye.

Abstract: In a plant for the continuous production of green forage from germinable seeds, the latter are mashed and then carried on trays into a germinating chamber, in which the seeds are treated to form a rootlet mat. This is then carried on revolving endless belts through successive air-conditioned chambers to form green forage. At least one germinating chamber for promoting the formation of a rootlet mat and at least one air-conditioned chamber for promoting the production of green forage or for promoting the formation of stems from the rootlet mat in masses of green forage are connected to a circulating duct for conducting gaseous reactants from one chamber to the other. The trays carrying the seeds in the germinating chamber for the formation of a rootlet mat comprise a frame and one or more carrying grids, which are welded in said frame or loosely held therein and supported to resist sagging.

Abstract: A container for living plants, characterized by nesting pots, the upper pot of which defines a reservoir and the second of which rests within the first to contain a nutrient soil, the second, defining with the first, a water input and the second also having plural ducts extending downward into the reservoir, the ducts each having horizontal channels at respective bottoms with a vertical water flow passageway therein, allowing the flow of water from the reservoir by capillary action, the second pot also having drain holes located within the bottom of the pot, intermediate the respective ducts.