Abstract: As a reversal of previous practice, the annular body of the mold in the unit has an annular case at the bottom thereof, rather than at the top thereof. The case is relatively thick axially of the mold, so as to form the greater portion of the axial length of the mold body at the outer periphery thereof; and at the top thereof, the case has an annular plate thereon, which forms a pair of flanges that overhang the case and enable the metal casting unit to be lowered into an aperture of a casting table from above, and supported on top of the table at the flanges. Meanwhile, the case defines the lower end opening of the mold cavity, and the outlet for liquid coolant that is discharged onto the molten metal body as it emerges from the unit. Commonly, the case is monolithic, and also has an annular sump at the top thereof which is covered by the plate to form a chamber for the coolant in the sump.

Abstract: A casting unit 6 consists of a monolithic body which is annular in shape and has an annular flange 72 outturned about the axis and monolithically outstanding on the body at the outer periphery, a set of lugs 110 angularly spaced about the axis on the lower end portion of the body and monolithically outstanding in the aperture, and a circumferential groove 114 about the outer periphery of the body in the upper end portion, with mullions 20 monolithically upstanding therein, adjacent the outer periphery of the groove, to form ports 112.The groove is interconnected with the cavity 108 in the lower end portion of the body at the aperture; and passages, 126, 140, a graphite ring 16, and whatever else is required, are added to complete the unit 6 before it is supported in an aperture in a metal casting table 2, having liquid coolant discharge means 14 circumposed thereabout and a stool to support molten metal after being mated with the lugs.

Abstract: Earlier devices of the genre, had a yoke-like head for brushing the teeth, and a cowling of reentrantly folded flexible material interconnected with the arms of the head so as to straddle the slot between the arms. The midsection at the bight of the cowling had pleats between it and the wings of the cowling, and together they formed an articulated linkage between the wings for preserving the bias on the wings during the tooth brushing operation. In the present device, the arms 12 have only brackets 34 on the terminal end portions thereof, the relatively outboard portions 38 of which elbow out in front of the arms, like cowcatchers, below the terminal ends 20 of the arms. The portions 38 in turn have mitt-like brushes 50 thereon comprised of fields of spaced individual bristle of 0.

Abstract: The device and method employ a pair of spaced jaws which have a tooth cleaning implement connected therewith, in the gap therebetween. In use, the jaws are straddled about a row of teeth, transverse thereof, and translated along the row opposite the inside and outside faces of the teeth. Various features enable the user to locate and "steer" the device, even when the jaws and implement are out-of-sight to him. Other features enable the user to count on the device itself to provide the "dynamics" with which we commonly use a conventional "tooth brush" when we manipulate it in our mouths from a point thereoutside. Still others enable the user to program or predetermine the "grip" of the device, transverse of the row, and to do so, moreover, in the context of having an interchangeable or replaceable tooth cleaning implement thereon which is adjustable in "grip" each time a new implement is substituted for an old.

Abstract: A ball bearing is balanced by orbiting the balls in the gap between the race defining members, magnetically causing the orbiting balls to assume a spaced symmetrical array about the gap, and then inserting a keeper device in the spaces between pairs of balls, to preserve the array for the finished bearing when the set of balls ceases orbiting in the gap. Earlier, the balls were inserted between the race defining members, in preparation for the balancing operation, by angularly deflecting the relatively outer race defining member from the plane of relative rotation until the balls could be inserted through an end opening of the gap, at one circumferential side thereof.

Abstract: The rate of color development in fish flesh is dramatically accelerated by injecting the fish flesh with a first aqueous solution of the dye, lecithin with which to emulsify the fatty oils of the fish flesh, and a food grade salt; and then ageing the injected fish flesh by soaking it in a second solution of the dye and the salt, with the salt being dissolved in the second solution in such a lower concentration, relative to the concentration of the salt in the first solution, to generate an osmotic pressure differential between the respective first and second solutions, which will diffuse the dye throughout the flesh and produce a substantially even hue therethroughout in about 20-28 hours.

Abstract: An apparatus for manufacturing a fluid flow cartridge for circulating a second fluid in heat transfer relationship with a first fluid includes first and second racks and a drive to reciprocate the first and second racks in relation to each other.

Abstract: The brush 2' in FIGS. 8-11 is rod-like and a monolith of semi-rigid but resiliently flexible plastic material. It comprises elongated spaced parallel handle forming members 34 which are discrete from one another, but hingedly interconnected so as to be rotatable about axes 18' lying in a plane substantially coincident with the hinged connection 48 therebetween. Arms 40 project from the members, with the slot 50 therebetween, and wings 30' at the head 74 thereof. Bias inherent in the plastic, crosswise of the members 34 at the hinged connection, tends to flatten the device, as in FIGS. 9 and 10. But the bias is resiliently yieldable to the user's thumb and fingers so that the head 74 (or 30', 46, 48, 46, 30') can be pinched into the condition of FIG. 11 wherein the user must relatively forcibly wedge the tops of the teeth between the tooth cleaning sides 6' of the wings when the head is straddled about a row of teeth.

Abstract: The device is improved over earlier versions in providing for the wings of the device maintaining the angular relationship therebetween when the reciprocate crosswise of the space between the arms to accommodate to variance in the diameter of the teeth. It is also improved in providing an implement which is cast about the arms to enwrap them in more sanitary fashion; and in providing a technique for casting the implement in a way which injects a harder casting material into the cores of the bristle.

Abstract: In the illustrated embodiments, the boot (22) has a sole plate (24) and a monolithic (54) shell of substantially rigid plastic material upstanding thereon. The shell forms an open top shoe structure (26) in which the user can insert the base of his foot, while he at the same time engages the metatarsal portion of his foot in a "holster" formed under an arched cowl (32) at the forward end of the shell. Meanwhile, at the back of the shell, there is a rear wall (36) that upstands to a level above the ankle joint of the user's foot, to form a strongback for the achilles tendon of his foot. The strongback (36) is accompanied by a part annular cuff (38) which is adapted to be removably secured about the user's lower leg above the ankle joint therein, and is supported on the shell at the top opening (28) thereof, so as to have no more than a limited capability to flex in relation to the shell laterally thereof.

Abstract: The device is improved over earlier versions in providing for the wings of the device maintaining the angular relationship therebetween when they reciprocate crosswise of the space between the arms to accommodate to variance in the diameter of the teeth. It is also improved in providing an implement which is cast about the arms to enwrap them in more sanitary fashion; and in providing a technique for casting the implement in a way which injects a harder casting material into the cores of the bristle.

Abstract: The davit 10 has an arm structure 16 with an indentation 44 therein within which it "hugs" the object 14 suspended from the same so as to reduce the objects's dynamicism on the mother vessel 2 when the vessel is underway and reacting to the water. This follows from the fact that in the relatively retracted position of the arm structure (FIGS. 1 and 2), wherein the object is stored until there is a need for it, the recess 48 of the indentation is disposed substantially entirely on the relatively inboard side of the vertical plane of the horizontal axis 40 about which the arm structure is pivotally mounted, and the object is suspended from the arm structure so that the relatively inboard side 24 of the object crosses the vertical plane of the axis and advances within the recess to locate the center of gravity of the object in more of a dead center relationship with that of the davit.

Abstract: The device and method employ a pair of spaced jaws which have a tooth cleaning implement connected therewith, in the gap therebetween. In use, the jaws are straddled about a row of teeth, transverse thereof, and translated along the row opposite the inside and outside faces of the teeth. Various features enable the user to locate and "steer" the device, even when the jaws and implement are out-of-sight to him. Other features enable the user to count on the device itself to provide the "dynamics" with which we commonly use a conventional "tooth brush" when we manipulate it in our mouths from a point thereoutside. Still others enable the user to program or predetermine the "grip" of the device, transverse of the row, and to do so, moreover, in the context of having an interchangeable or replaceable tooth cleaning implement thereon which is adjustable in "grip" each time a new implement is substituted for an old.

Abstract: The barrel assembly of the heat exchanger is manufactured with abutment joints between the housing and the headers thereof, and is clamped together along the axis of the assembly by a rod extending through the respective headers, and the housing, parallel to the axis, so that the housing is not vulnerable to "blowing its ends" when under pressure. The housing is also free draining at the discharge header when relieved of pressure, and this combination of features is made possible in part by the use of an insertable fluid flow cartridge for the housing which provides the tubing for one of the fluids and baffling for the other fluid when the latter fluid is circulated through the housing.

Abstract: A body of partially solidified metal emerging as ingot from the exit end 10 of an open ended mold 2, is direct cooled by charging liquid coolant into an annular retention chamber 32 circumposed about the exit end opening of the mold in the body thereof, and discharging the coolant from the chamber onto the surface of the ingot through a first passage 14 opening into the exit end of the mold and communicating with the chamber at an opening 50 therein. At times, such as in the butt-forming stage, a second passage 46 is formed in the chamber which is serially interconnected with the first passage 14 at the chamber opening 50 and operable to deliver the chamber coolant to the first passage at an increased rate of flow, relative to the rate at which the coolant was charged into the chamber.

Abstract: In one embodiment, the bodies of the mandrel and the drill have radially opposing portions thereof which are threadedly engaged about the axis of the drill. Through bores in the respective body portions make it possible to latch the drill to the mandrel for the drilling operation, using a pin that is inserted through the bores, and then when the drilling operation is completed, withdrawn from the bores to enable the core of work material to be ejected from the drill by advancing the mandrel on the threading while the drill is restrained against rotation. In other embodiments, the bodies of the mandrel and the drill have axially opposing portions thereof which are equipped with raised steps on the axially opposing faces thereof. The steps enable the drill to be latched to the mandrel for the drilling operation by engaging the faces of the body portions with one another so that the steps abut in one axial plane of the drill.

Abstract: A tubular casing 2 is installed in a tunnel 82 in the earth and the rod 14, 49 is advanced telescopically through the bore of the casing until a portion 49 of the rod is projected into the tunnel ahead of the casing, whereupon a pair of harpoon-like detents 138 anchor that portion of the rod to the wall of the tunnel so that the casing can be retracted in the opposite direction to remove it from around the remainder of the rod. When the distal end of the casing requires a cap 16 because the earth is unstable, pressurized fluid is applied to a piston-like insert 18 in the bore of the casing, to eject the cap and then the insert itself, before the rod is projected into the tunnel.

Abstract: The barrel assembly of the heat exchanger is manufactured with abutment joints between the housing and the headers thereof, and is clamped together along the axis of the assembly by a rod extending through the respective headers, and the housing, parallel to the axis, so that the housing is not vulnerable to "blowing its ends" when under pressure. The housing is also free draining at the discharge header when relieved of pressure, and this combination of features is made possible in part by the use of an insertable fluid flow cartridge for the housing which provides the tubing for one of the fluids and baffling for the other fluid when the latter fluid is circulated through the housing.

Abstract: The container comprises two or more tube-like storage modules that are stacked on top of one another and interconnected by a plate-like lid which is removably interposed in the joint between the modules and has male/female joint-forming attachment grooves on the upper and lower sides thereof, which mate with in-turned out-turned flanges on the lower and upper rims of the modules, respectively, to form a joint in which the modules are releasably interlocked against relative movement in the lateral directions thereof. The modules have open-ended bins therewithin, and additional openings in the sides thereof through which a pair of panels are removably insertable to form false bottoms for the bins, or in the alternative, to open the bottoms of the bins for the unloading operation, when the panels are removed from the bins.

Abstract: A body of partially solidified metal emerging as ingot from the exit end of an open-ended mold, is direct cooled by discharging liquid coolant onto the surface of the ingot through a passage of the mold opening into the exit end of the mold at an aperture therein; and at times, such as in the butt-forming stage, by the added step of forcing pressurized gas into the coolant through a body of solid but porous, gas-permeable material incorporated into the wall of the passage at a surface thereof which extends generally parallel to the flow of coolant in the passage and coterminates with the exit end of the mold at the aperture to form an edge thereof. When the gas is added, the coolant discharges through the aperture in a discontinuous liquid phase in which it is laden with bubbles of undissolved gas that will alter the heat transfer characteristics of the coolant on the surface of the ingot to vary the rate at which heat is lost therefrom.