Abstract: An adjustable rack for hanging objects to be painted or plated having a hanging vertical support column with a plurality of adjustable arms connected to the vertical support column. Each arm has a plurality of vertical suspended hooks which can be easily adjusted or removed as desired.

Abstract: An electroacoustic transducer includes a permanent annular magnet with a central aperture, with front and back multisided flux plates attached to the annular magnet to complete a magnetic circuit which drives a voice coil and operatively drives a diaphragm. The edges of the front and back multisided fluxed plates defined a surface area of approximately 77 percent of the area bounded by the outer diameter of annular magnet.

Abstract: A vehicle which is automatically driven and steered on a predetermined guide path and which has a manual control behind a front door and/or operable by rotating a tiller from a vertical to a horizontal position has a reverse control with an exteriorally located actuating means for driving the vehicle in a reverse direction when the other manual controls are inaccessible. The reverse control overrides both the manual control as well as the automatic control for the vehicle.

Abstract: An overhead conveyor with an improved guide for a spray booth loop and other arcuate track portions. The guide is an annular ring which bears against the conveyor chain and which is rotatably supported for movement with the conveyor chain by a first set of rollers which contacts the undersurface of the annular ring, a second set of rollers which contacts an inner circular flange of the annular ring and a third set of rollers which contacts a top surface of the annular ring.

Abstract: A target stand comprises a target holder pivotably mounted on a scissors frame base. The scissors frame base and pivotably mounted target holder are adjustable, collapsible, and portable. The height of the target can be adjusted by extending or retracting the scissors frame base, with a cord or chain running from one side to the other side of the scissors frame base holding the base at its desired position. The target holder is held in position on the scissors frame base by an adjustable position support rod running from the target holder to the scissors frame base. Targets are held in place on the target holder by spring operated plastic clips which are slidably mounted on the target holder. The target stand can be securely attached to the ground by means of removable spikes on the bottom of the base.

Abstract: A fume incinerator having a rotary heat exchanger with a novel seal structure therefor. A rotating rotary heat exchanger wheel is positioned in the mouth of a tubular incinerator having a closed end wall opposite to the rotary heat exchanger. A baffle extends from the heat exchanger wheel to a point spaced from the closed end of the incinerator so that the fume and air mixture, after passing through one side of the heat exchanger wheel, is passed through one side of the incinerator wherein it is heated to a temperature sufficient to oxidize the fumes in the mixture, passes around the end of the baffle to the other side of the incinerator and through the other side of the heat exchanger wheel. The fume and air mixture is preheated from the heat of combustion as it passes through the heat exchanger wheel. The heat exchanger wheel is axially tapered and a seal member surrounding the heat exchanger is likewise tapered in a complementary manner.

Abstract: A tube separator has two blocks with vertically and linearly aligned protrusions to which joined tubes are attached for separation into individual tubes. The protrusions are interdigitally arranged when the blocks are adjacent each other. A chain drive engages one block and pulls it from the other block which is locked in a fixed position. A guiding means maintains the blocks in an upright position. An ejecting means for separating the tubes from the protrusions engages the driven block and ejects the tubes from the protrusions. The fixed block is pushed by a driven block from a succeeding cycle and also engages the ejecting means for removing the tubes from the protrusions. The chain drive returns a block along the guide means so that an operator may reuse them with other tubes.

Abstract: A portable plant stand for holding potted plants is formed of easily assembled flat wood components. The stand comprises a tapered vertical support column that supports horizontal shelves having pot holding openings. The shelves include central apertures that fit over the support column and engage the tapered sides of the support column. The support column has an H-shaped cross section and comprises opposed tapered members and a tapered cross member that is removably fastened to the side members by two screws. The support column can be mounted on bearings to permit rotation of the plant stand.

Abstract: A lavatory spout having a one-piece integrally molded plastic body with a depending hollow shank portion and an outwardly extending hollow spout portion. The spout and shank portions are in open communication so that water passes through the shank and spout portions. A bottom cover flange is also formed on the body spout portion and extends outwardly along the length of the spout portion. Desirably, the lower flange forms a ring around the upper portion of the shank. A hollow elbow conduit is secured to the outer open end of the spout portion, providing elbow passage at the outer end thereof. A separate cover extends over the spout, the elbow conduit and the upper portion of the shank with the sidewalls of the cover meeting the sidewalls of the body cover flange. Means are provided for securing the cover to the body and to the elbow conduit. A pop-up rod tube, of brass or molded in one piece of a plastic material, is provided within the body and extends downwardly into the shank portion.

Abstract: An anchor for securing a mobile home or the like in position on the ground comprises a hollow tubular anchor post having locking arms pivotably mounted at a lower end thereof for movement from an entry position wherein the locking arms lie flat against the post to a locking position wherein the locking arms are pivoted downwardly and outwardly from the post. The anchor includes a fluid jet embedding mechanism comprising an inlet for pressurized water at the upper end of the hollow anchor post and an outlet for pressurized water at the lower end of the anchor post. The anchor is embedded in the ground by directing a stream of water under pressure down the interior of the tubular anchor post and directly against the ground beneath the anchor post. This displaces the ground below the anchor and causes the anchor to embed itself firmly into the ground.

Abstract: A door light fastener for releasably mounting opposing sections of a door light frame in a door, wherein a plurality of pairs of opposed cylindrical bosses extend inwardly from each of the opposing door light sections, comprises a tubular spring clip that encircles and resiliently holds each pair of bosses together. Inclined barbs in the spring clips permit bosses to be inserted into the ends of the spring clips but inhibit removal of the bosses from the spring clips. A stop projection in each spring clip prevents the bosses from being inserted more than halfway through the spring clip.

Abstract: A coordinate indicating and plotting system wherein compass heading signals are periodically integrated at frequencies related to the distance traveled by a water, air or land vehicle to obtain coordinate change signals for visual indication of vehicle coordinates. The coordinate change signals can be applied to a plotting system to record the path followed by the vehicle or applied to a counter to indicate the unit changes for the vehicle in each direction. Desirably, the compass heading signals are digitized by converting the heading signals into frequencies and the signals are integrated by summing the pulses for each output direction during each sampling period. A novel crescent-shaped opening whose width approximately follows a sine function between zero and 180.degree. is positioned angularly on the compass card about the center of rotation thereof.

Abstract: An industrial heating furnace wherein heat in exhaust gases is transferred to combustion air for burners in the furnace through a rotary ceramic heat exchanger. In one embodiment, turbulating air pipes are positioned in the furnace and the heated combustion air is supplied to the turbulating air pipes as well. The turbulating air pipes may be juxtaposed to and positioned across an elongated heating chamber. Liquid fuel in atomized form can be injected into the heated combustion air upstream of the burner.

Abstract: An automatically controlled manually steerable vehicle has power steering in both manual and automatic control modes. A torque sensing means for the coupling between the steering handle and the steerable wheel uses a flexible coupling and a photocell detecting system to control the power steering for the vehicle in the manual mode.

Abstract: Drag in turbulent aqueous streams is reduced by a powder composition of a finely divided hygroscopic drag reducing powder, for example poly(ethylene oxide), and a colloidal size hydrophobic powder, for example, an organosilicon modified colloidal silica, and an inert filler such as sodium sulphate. The powder composition is injected into the turbulent stream by first mixing the powder with water to form a slurry and immediately thereafter drawing the slurry through an eductor into a recycle stream between the downstream and upstream ends of a pump for the turbulent stream.

Abstract: A display case for bakery goods and the like wherein a cabinet having opposite sidewalls and a front glass wall mounts a plurality of shelves. A pair of elongated support brackets are demountably suspended at the sidewalls of the cabinet and contain vertically spaced support beams thereon. Crossbars are demountably supported by the bracket support means and wire racks are removably clipped to the crossbars. One or more of the crossbars at the front of the cabinet adjacent the glass wall houses a fluorescent fixture and a fluorescent lamp which are concealed from view from the front of the cabinet but which are exposed for illumination of the shelf therebeneath.

Abstract: A caged nut for mounting a threaded nut on a surface comprises a housing of box-like structure enclosing an internally threaded nut. The housing is formed of a single blank of sheet metal and comprises a square central section with a clearance hole therethrough and two end walls and two side walls extending at right angles from the respective opposed edges of the central section. Mounting flanges extend outwardly at right angles from the ends of the end walls, and locking flanges extend inwardly from the ends of the side walls. Locking tabs extend outwardly from the sides of the locking flanges and engage openings in the mounting flanges. The engagement of the locking tabs in the openings in the mounting flanges prevents the side walls from spreading outwardly due to a rotational force being placed on the nut.

Abstract: An ointment for topical use comprising a small amount of a cortical steroid intimately mixed with aspirin in a suitable carrier such as petroleum jelly wherein about 45 to 125 parts of the steroid per million parts of the aspirin are present in the mixture. The ointment is applied to corns, calluses, planter's and seed warts and other forms of skin disorders, preferably after soaking to remove the dematosis.

Abstract: A die frame assembly wherein an ejector plate having ejector pins extending therefrom is reciprocally mounted on support posts in the frame assembly through replaceable and lubricated bushings on the ejector plate. The support posts extend between the base or clamping plate and the central sprue section of the frame for rigid support thereof. The support posts are desirably hardened or case-hardened for long wearing.

Abstract: An apparatus to inject fine hygroscopic powder into a high pressure stream has a dispenser which dispenses powder onto a flared dispersing surface mounted in a mixing receptacle. The flared dispersing surface disperses the powder and deposits the powder onto a collector portion of the mixing receptacle. A water supply means creates a film of water on the collector portion to mix the powder and water. An outlet on the bottom of the mixing receptacle is coupled to a high pressure stream through a venturi orifice to draw the mixture into a high pressure stream.