Abstract: An improvement in a process for dispensing a fluidizable solid from the lower portion of a pressure vessel equipped with a weighing device, a closable supply, a discharge, and a source of three gas flows, a first of which is applied within the vessel at a level above the solid to be fluidized, a second of which is applied within said vessel in a lower portion thereof, and a third of which is applied within the discharge orifice of the vessel, which discharge orifice terminates in a chamber, which improvement involves determining the amount of solid dispensed and determining the throughflow of gas in relationship to the amount of solid dispensed to maintain a constant gas/solid ratio while maintaining the pressures such that the pressure applied to the lower portion of the vessel is greater than the pressure applied at a level above of the solids which, in turn, is greater than the pressure applied to the discharge orifice, all of which are greater than the pressure maintained within the chamber, and an appara

Abstract: Subterranean mineral deposits, such as oil shale or the like, are prepared for in situ retorting by selectively mining out an area at the base of the deposit leaving an overlying deposit supported in a suitable manner such as by a plurality of pillars. The overlying deposit is expanded in any suitable manner into the underlying area in a fashion to create a predetermined distribution of permeability from an area of low permeability to an area of high permeability. An inlet is provided at the low permeability area and an outlet at the high permeability area. A suitable medium is introduced into the deposit at the low permeability end for extracting and forcing mineral values from the deposit toward the outlet end for recovery. .Iadd.

Abstract: A system for collecting solar energy which comprises a thin faceplate made of a large number of optical fibers having respectively a diameter ranging from 0.5 micron to 2.0 micron tied up coherently in a bundle vertically to the plane of the faceplate, and a means for focusing the rays departing from the optical fibers of the faceplate.The faceplate enables to let solar rays entering into the optical fibers from all directions within the numerical aperture of the fibers pass through the fibers to let rays parallel to the principal axis of the faceplate depart from the fibers. Accordingly, the system enables to collect solar energy with a high collecting efficiency with no special means for strictly following the sun.FIG. 4 is a vertical sectional view of a system of this invention, where 1 is faceplate, 2 optical fibers composing the faceplate, 3 concave parabolic mirror, 4 convex parabolic mirror, 9 a bundle of optical fibers for transmission.

Abstract: A multiple driver loudspeaker system comprises two angularly spaced rear rectangular baffles each nearly filled with four closely spaced full-range small loudspeakers with a port tube passing through the center of each rear baffle and the junction therebetween. A front baffle carries a small centrally located loudspeaker. The front loudspeaker is backed by a cavity that is vented through the port tube at the intersection between the rear baffles. Each of the remaining loudspeakers is backed by a cavity with the four cavities associated with each rear baffle being vented through the associated port tube through channels located at the front of each cavity. Two bullets are cantilevered from the front baffle rearward and essentially concentric within the respective centrally located ports. The volume of each of the nine cavities is substantially the same.

Abstract: An adduct of maleic anhydride and an elastomeric copolymer of ethylene, at least one C.sub.3 -C.sub.6 .alpha.-olefin, and at least one nonconjugated diene; the adduct having an inherent viscosity of at least one as measured on 0.1 gram of adduct dissolved in 100 milliliters of perchloroethylene at 30.degree. C. and having a gel content less than about 5 percent as measured by weight percent adduct insoluble in boiling tetrahydrofuran at atmospheric pressure after 48 hours. Also, a process of making the adduct and thermoplastic elastomers prepared from the adduct.

Abstract: A metal mesh protective glove extending continuously around the user's hand and fingers. A continuous cuff extends around the circumference of the glove near the user's wrist and encloses a strap which is free to slide in and is removable from the cuff. The opposite ends of the strap extend from an opening in the cuff; and the strap includes means to secure its ends to each other to form a band of varying length so that the strap and cuff may be tightened about the wearer's wrist with minimum folding or drooping of the glove mesh.

Abstract: There is disclosed an acoustic earmuff device wherein there is provided an articulated earmuff-to-headband attachment construction which is readily fabricated and assembled and which provides sufficient freedom of pivotal motion of the earmuff relative to the headband as to allow each earmuff to readily assume the proper wearing position with respect to the head of the user. The invention utilizes a soft resilient grommet fitted through an aperture in the back wall of a rigid earcup to articulatingly capture a rigid stud extending inwardly from an end portion of a resilient headband.

Abstract: A lavatory filter for a sink drainage well is provided and consists of a flat annular ring member having an outer circumference larger than the sink drainage well whereby the flat annular ring member will sit on top of the sink drainage well, an annular dome shaped strainer member affixed at its outer edge to the inner circumference of the flat annular ring member and a plurality of curved leaf springs each one having one end affixed to the inner circumference of the flat annular ring member below the annular dome shaped strainer member and bent downwardly to engage the inner peripheral wall surface of the sink drainage well.

Abstract: Apparatus for controlling the flushing of a lavatory, for example in a mens urinal, comprises a source of water for flushing, a flush control valve SV wherein the valve is actuated in response to the usage of the lavatory, for example by means of door switch DS. In order that over-use of the device should be prevented in busy periods, a delay circuit D1 is provided to prevent a second actuation of the water supply solenoid valve within a preset period from a first actuation.

Abstract: A self-contained replacement flush valve assembly has an annular valve seat member which is sealed to the original valve seat by an elastomeric sealing ring, the valve seat member being clamped in position by a toggle assembly mounted on a screw carried by a frame received in the cistern outlet tube. The frame is of H-shape and its upper limbs are pivotally connected to the valve seat member, the lower limbs having a sliding engagement with pivoted arms of the toggle assembly to resist rotation of the toggle assembly. The toggle arms are pivotally retracted during insertion of the toggle assembly and frame into the outlet tube, but fall into extended positions so that on tightening the screw the arms clamp against the lower end of the outlet tube.

Abstract: The specification of the present application discloses a self-rolling swimming pool cover which extends when connected to a pressure source and returns to a rolled position when disconnected therefrom. The cover comprises a cover member, collapsible conduit means extending in one direction of the cover member and coil spring means extending in the same general direction as the conduit means. When a fluid pressure source is connected to the conduit means, it expands and in so doing, causes the cover to unroll from its compact state. When the pressure source is disconnected the conduit means is allowed to vent and collapse as the coil springs urge the cover to its rolled state. The cover will operate on the fluid pressure readily available from the discharge side of a circulating pump with the vented water being discharged from the rolling of the cover merely entering the pool.

Abstract: A two-piece shower stall formed as an integral unit and thereafter separated and reassembled after placing a gasket intermediate an upper and lower section formed by the separation. A securing belt is preferably formed integral with the one-piece unit at the area of intended separation and serves to reinforce the shower stall during separation and provide a means for releasably securing the upper section and lower section together. The gasket intermediate the upper section and lower section preferably extends into the interior of the shower stall to provide a watertight seal.

Abstract: An auxiliary handle is attached to a pivotal faucet spout. The handle has a high thermal resistance. When used to pivot the faculet spout, heat from a hot spout will not be transferred to the use's hand.

Abstract: A brush for cleaning and washing surfaces with a scrubbing action, the brush having bristles mounted on a body. The body houses a freely rotatable turbine wheel driven by a jet of water. The turbine wheel is eccentrically weighted so that as it rotates it imparts to the body of the brush and the bristles in a vibrating motion.

Abstract: A toothbrush has a cylindrical bristle-carrying head (4; 26) which is rotatable about its longitudinal axis and at the same time reciprocatory along its longitudinal axis by the rotation of a rotor (6; 10) arranged on the handle of the toothbrush. In one embodiment, the toothbrush has means (29, 29a, 30, 30a) which, for ensuring the desired direction of rotation of the brush head, are adapted to block against rotation in the opposite direction.

Abstract: A toothbrush (1) comprising a plurality of T-shaped bristles (5) is described. Each of the bristles (5) comprises an elongated cleansing head (11,22) terminated at each end by rounded ends (13,27) and having between the ends a plurality of cleansing elements (12,24). The rounded ends (13,27) are provided for presenting a nonabrasive surface to the subgingival surfaces (17) surrounding a tooth when the cleansing surface of the cleansing head (11,22) is moved across the surface of the tooth during cleansing of the tooth. In one embodiment, the cleansing elements (12,24) are conically shaped members (12) terminated by a relatively sharp tip. In another embodiment of the invention the cleansing elements (12,24) comprise parallel, substantially rectangular members (24) terminated by a relatively sharp edge (25).

Abstract: A toothbrush whose cleaning head can be set at various angles in relation to the handle, especially at 90.degree., and is interchangeable.

Abstract: A paint brush is described as having a handle which is composed of two sections which are normally joined together in end-to-end relation, but which can be interchangeably used with a number of differently sized ferrules that contain fibers. The ferrules are each provided with a special adapter to which a single handle can be detachably mounted.

Abstract: A linearly reversible caster assembly (30) capable of carrying a load (L) on a surface (S) comprising a pivotable U-shaped frame (34) coaxially mounted with a caster wheel (32) on an axle (48). A translatable U-shaped frame (36), suitably attached to the load (L), has a planar surface (56) that coacts with a rollable surface (42) carried by the pivotable frame (34). The rollable surface (42) has a radius greater than the wheel (32) whereby when it is desired to reverse the direction of travel of the load (L), and thus the assembly (30), the frame (34) will pivot about the axle (48) and the wheel (32) will remain substantially motionless. As a result, the eccentricity of the caster assembly (30) is changed and the wheel (32) is linearly reversed.

Abstract: An item of jewelry (10) is described which may be used as a necklace or an eyeglass strap for maintaining eyeglasses about the neck of the wearer. A necklace section (12) is adapted to form a necklace by connecting the rings (20, 22) at its ends together. The ends (14, 16) may be used in combination with the necklace section (12) to form a strap for eyeglasses. The ends include rings (46) for engagement with the rings (20, 22) on the necklace section (12). The ends further include either a resilient strap (34) or an O-ring (54) which may be positioned over the earpiece of the eyeglasses. Ends (60) can be provided which include resilient strap material (62) forming a loop (80) which is adjustable.

Abstract: A two piece garment button having a base that is sewn to the garment and an interchangeable button head having a key that is slidably received in the base and locked therein to form an assembly capable of being passed through a buttonhole and thus closing the garment.

Abstract: A releasable connector for connecting a shackle bolt on a liferaft to the depending end of a davit cable is set in a safe condition for boarding and lowering of the liferaft. In the safe condition, a hook member supports the shackle bolt and is itself locked in its supporting position by a latch member. A coupling spring connected between the hook member and the latch member operates to one side of its dead-center position to urge the latch member into the locking position. A first downward pull on a lanyard causes a pawl member to engage a tooth on the latch member to move the latch member from its locking position to a drive position in which the coupling spring operates to the other side of its dead-center position and urges the latch member into its drive position.

Abstract: The disclosure relates to a resilient friction clip adapted to be received over and to frictionally grip the wire portion of a merchandise display hook, such as used pegboard displays. The clip is formed of resilient material, of extruded, or more preferably molded construction. A center aperture is provided for gripping the wire, and a radial slit extends from the periphery of the clip into the center aperture, enabling the clip to be forcibly applied over the wire. A pair of angularly disposed manipulating tabs are formed integrally on the clip, opposite to and symmetrical with the radial slit. The manipulating tabs may be gripped by the fingers and squeezed together, to open the radial slit and greatly facilitate application of the clip onto the wire. Squeezing of the manipulating tab also tends to release the friction grip of the clip on the wire for easy adjustment of its position.

Abstract: A seat belt buckle mounting device for use in motor vehicles and the like includes an attachment body that is secured to an anchoring cable and a buckle base plate to which the anchoring body is attached. The attachment body includes longitudinally extending grooves formed on opposite sides thereof and the buckle base plate includes a central aperture for receiving the attachment body and having inwardly extending opposed projections that are designed to enter and forcibly engage the grooved portions of the attachment body to thereby fixedly secure the attachment body to the buckle base plate. The present invention advantageously provides a seat belt buckle mounting device in which the piece parts are both simple to manufacture and assemble when compared to prior devices.

Abstract: Apparatus for imparting visual surface effects to a relatively moving substrate by application of discrete streams of heated pressurized fluid to surface areas of the substrate. The apparatus includes an elongate manifold assembly comprising two fluid receiving compartments, each extending across the path of said substrate. Fluid from the first compartment passes into the second compartment, which is comprised of a series of chambers, each associated with a throttling gap. The fluid is uniformly mixed within this second compartment, and may then be directed onto the substrate as a thin, continuous stream extending the length of the manifold. By use of blocking streams of relatively cool fluid, smaller streams or groups of streams extending along selected portions of the manifold may be formed.

Abstract: Elongated hollow members or tubes frictionally engage the interior wall of a hollow corrugating roll or a hollow pressure roll of a single facer so as to minimize the elastic vibration thereof and thereby to minimize the noise developed and transmitted during the operation of the single facer. A plurality of such tubes of a given diameter are arranged circumferentially about the interior wall of the shell of a roll of a single facer in such manner that each of the tubes frictionally engages the interior wall and so that each of the tubes also engages the adjacent tubes on either side thereof, thereby providing an assembled structure in which the plurality of tubes resist the elastic deformation of the roll and the resultant elastic vibratiion and thereby reduce the noise level.

Abstract: A boiler tube crimping tool and method of use for breaking the seal between a boiler tube and tube sheet to facilitate the pulling of the boiler tube from the tube sheet. The preferred method includes cutting the boiler tube, then crimping the remaining tube stub, followed by pushing the tube stub from the tube sheet.

Abstract: A ball bearing puller comprising a head member with a central force applying bolt and a number of extractor bars rotatably and slidably mounted at first ends in slots radiating from the bolt. The extractor bars can be clamped at any position along the slots so as to be non-rotatable. Each extractor bar has a modified sphere at its other end with inner and outer race clearing flats which are parallel and positioned symmetrically one either side of the longitudinal axis of the extractor bar and a cage clearing flat at the extremity of said one end intersected by said longitudinal axis.

Abstract: Method of making a sleeping box by taking a blanket or comforter and folding over the bottom of the blanket or comforter in such a way as to form a box like structure when the folded parts are secured, taking the two longitudinal sides that extend up from the bottom of the box to the top, lapping one side over the other and securing the same so as to form a closure.

Abstract: A process for fixing the roof to a bearing structure of the body of a vehicle, in which the roof is mounted in contact with a bead of an adhesive substance applied onto an inner rim of the bearing structure, and an outer rim of the roof is fixed by welding to an outer rim of the bearing structure, the body thus obtained being subsequently baked at a predetermined temperature for a period of time sufficient to polymerize and harden the said adhesive substance.

Abstract: A chuck member holds the end fitting of the air spring and inserts the fitting in the open end of a tubular sleeve of the spring. A housing is provided for axial movement toward and away from the chuck. An annular segmental clamping member is located in an opening in the housing and the segments are moved radially inward for positioning and crimping a ring member of the spring in response to controlled axial movement of the housing. Axial movement of the segments for positioning the ring member and inserting the end fitting may be provided by piston and cylinder assemblies. A crimping chamber in the housing is utilized to move the housing and actuate cam means engageable with the segments to provide the desired radial force which is applied by the segments during positioning and crimping of the ring member.

Abstract: A head rotatable about an axis for machining and simultaneously polishing the peripheral surfaces of shafts or the like, comprises a support plate provided with a central opening through which a shaft to be machined and polishing may extend. A plurality of tool supports are mounted in a star-like manner on the support plate adjustable in radial direction toward a shaft extending through the central opening. The tool supports alternatingly carry at inner ends knives or polishing rolls. A central adjustment device is provided for simultaneously adjusting of the tools carried by the tool supports through equal distances in radial direction toward the workpiece. The central adjustment is carried out by a plurality of angular drives, each including a bevel gear for each tool support and at least one gear ring with which the bevel gears mesh.

Abstract: A self-aligned metal process and resulting structure is described which achieves self-aligned metal to silicon contacts and submicron contact-to-contact and metal-to-metal spacing for field effect transistor integrated circuits. All gate electrodes are composed of polysilicon while the remaining contacts are composed of metal. The insulation between the metal contacts and the polysilicon is a pattern of dielectric material having a thickness dimension in the order of a micron or less. The method involves providing a silicon body and then forming a first insulating layer on a major surface of the silicon body. A first layer of polysilicon is formed thereover. Openings are made in the polysilicon layer by reactive ion etching which results in the structure having substantially horizontal surfaces and substantially vertical surfaces. The openings are in those areas designated to be the gate regions of the field effect transistors in the integrated circuit.

Abstract: A process for making an integrated structure comprised of complementary MOS devices is described, where electrical isolation is provided by recessed field oxide regions and by field isolation implant regions. Starting with a single conductivity type semiconductor layer, such as P- type silicon, a first masking step is used to produce an N- type well therein. After this, a layer of silicon or silicide is formed through the same mask. In a second masking step, openings are made for the field isolation implant regions. The edge of the silicon or silicide layer determines the edge of the field isolation implant, which is therefore self-aligned to the edge of the well. This same mask is later used to determine the locations of the recessed oxide isolation regions. Subsequent masking steps are used to form polysilicon gate electrodes, source and drain regions of the active devices, contact holes and contact metal and interconnects.

Abstract: An overall method for manufacturing an IGFET device having extremely shallow source and drain regions and reduced gate to source and drain overlap capacitances is disclosed. For silicon MOS devices, the method also provides for the formation of metal silicide layers on polysilicon gate electrodes and interconnection paths and the source and drain regions in the same fabrication step. Source and drain regions are formed by oxidation of an arsenic doped polysilicon source layer formed to be in contact with areas in the silicon surface in which such regions are to be formed. The rate of oxidation of the source layer exceeds the rate at which arsenic diffuses in the silicon at the oxidation temperature. Owing to a high segregation coefficient of arsenic in silicon dioxide, nearly all of the arsenic in the source layer is driven into extremely shallow source and drain regions which acquire high surface concentrations.

Abstract: Disclosed is a method for manufacturing a semiconductor device of high reliability, high performance and high integration with high yield. The method of this invention has the steps of forming at least one groove in a semiconductor substrate, forming a non-single-crystalline semiconductor film to cover an entire surface of the semiconductor substrate including an inner surface of the groove, selectively etching the non-single-crystalline semiconductor film so as to leave the non-single-crystalline semiconductor film on at least a side wall of the groove, and forming an oxide isolation layer in the groove by thermal oxidation.

Abstract: A tool for installing on an aerial power transmission line, a vibration damper having a resilient split sleeve and a fin. The vibration damper installation tool comprises a frame element for fitting around the aerial conductor, a conductor guide, a fin receiver for engaging the fin of the vibration damper, and structure on the conductor guide and fin receiver for the application of force to clamp the resilient split sleeve of the vibration damper onto the conductor.

Abstract: A method and apparatus for producing a stranded cable. The wire stretching step and annealing steps which have been performed independently prior to the twisting step in the field of stranded cable production are combined in the invented apparatus. The rotary element defines an annular space in cooperation with a shoe member such that the cross sectional area of the annular space decreases progressively. The roughened wire guided into the annular space via the shoe member is press molten and subjected to extrusion moulding to obtain a plurality of wires, which in turn are twisted together. Since the stretching and annealing are performed by a single apparatus, shop space conventionally required for device installation is reduced.

Abstract: An upholstery machine for the tufting of buttons within cushions wherein a needle picks up a string loop which is attached to a lower button and is then caused to penetrate the cushion. The needle is withdrawn and the string loop secured to an upper button. A button feeding mechanism is utilized which comprises an enlarged, elongated coil spring. The coil spring supports a single lower button with its attached loop of string at each coil of the spring thereby forming a row of the button assemblies. The inner end of the coil spring is attached to a power source which is to incrementally rotate the coil spring to discharge a single button assembly from the free outer end of the coil spring at a selected instant. The discharged button assembly is to be engaged with the needle. The power source includes appropriate gearing mechanism to reverse rotation of the coil spring to facilitate the loading of the coil spring with the button assemblies.

Abstract: A measuring head for measuring article contour positions comprises a casing with a feeler pin mounted in the casing for pivotal movement in three-dimensional directions. A separate spring biases the feeler element in a neutral position in each of the three dimensional movement directions and the feeler pin is movable against the bias in all directions in a measuring movement. The measuring head is provided for measuring equipment for multi-coordinate measuring instruments and machine tools and is provided with connections for a digital or an analog evaluation of the measured value. Preferably a plurality or rope elements are connected to the feeler pin to hold it in its coordinate zero position within the casing and to extend in the respective X, Y and Z directions and are in equilibrium with each other in their state of rest.

Abstract: An improved apparatus and method for measuring surface heights is disclosed which yields a true height profile of the surface being measured. The apparatus and method is adapted to provide a straight and preferably level reference datum adjacent to the measured surface from which height and slope variation along the measured surface are automatically sensed, recorded and plotted. Three structural embodiments of the apparatus of the present invention are disclosed which permit either separate or simultaneous transverse or longitudinal surface data to be obtained during operation.

Abstract: Method and apparatus for measuring the nip clearance between two rolls rotating close to each other. First and second members are non-rotatably mounted on opposite sides of the nip. Each member has a pair of wheels mounted so that one wheel rotates in contact with only one roll and the other wheel rotates in contact with only the other roll. The nip clearance is a function of the distance between the two members.

Abstract: A direct reading grade rod as provided with a fixed scale having display windows therein and one or more sliding members slidable behind the fixed member and carrying a plurality of number sets, with different positions of the sliding member resulting in different sequences of numbers displayed in the windows.

Abstract: Bore-hole mapping, or surveying, or tool steering in a bore-hole is accomplished using selected combinations of sensors, with sensor signal compensation being provided, in the hole or at the surface. Typical sensors include an angular rate sensor or sensors, a linear acceleration sensor or sensors, and an angular acceleration sensor or sensors. The sensor group is typically rotated in the bore-hole, and the sensors may have selected sensitive axis angularity relative to the travel axis in the bore-hole.

Abstract: A cylindrical compass gimballing and data readout system permitting 360.degree. rotation about both yaw and roll axes includes a cylindrical compass housing flooded with semiconductive fluid to permit transmission of a digitally multiplexed signal from a remote reading compass to a processing unit in which the fluid is interposed between spaced-apart plates located along and perpendicular to the roll axis of the compass. This permits electrical connection to and from the compass, and permits not only 360.degree. rotation about the yaw axis for compass heading readout, but also 360.degree. rotation of the compass about the roll axis to permit use in seismic streamers.

Abstract: An improved four way utility level, including a flat plate having a protractor engraved on one side, and a leveling unit mounted thereupon that includes a rotatable bubble assembly toothed to a gear which is toothed to a gear formed on a pivotable handle.

Abstract: The device for drying coal comprises a plurality of damping vessels wherein the coal is pre-heated by means of steam and/or hot water, thereupon damped in a second stage, and finally pressure-released. The several damping vessels 1-17 are combined to form groups. Each of these groups is provided with a common group conduit 18 conveying live steam for damping, with a common group conduit 19 conveying wet steam from vessels for overflowing other vessels, and with a common group conduit 20 conveying hot water for rinsing. Over the damping vessels 1-17, there are provided distribution conduits which extend over all groups and which are conveying live steam 38, wet steam for overflowing 39, and hot water for rinsing 40. The group conduits 18,19,20 are connectable via valves 41,42,43 to the distribution conduits 38,39,40. Thus it is possible to include selectively into the procedure of any group any vessel of another group or the additional vessel 17 (FIG. 1).

Abstract: A dryer apparatus comprising an enclosure which contains a drying chamber for receiving articles, such as clothes, to be dried, an air heating passage and an air cooling passage. The heating passage is situated underneath the drying chamber and has inlet means and outlet means communicating therewith on opposite sides of said chamber, respectively. Air heating means are provided in the heating passage between the inlet and outlet means threof to heat air flowing through said heating passage. The cooling passage is situated beside the drying chamber and has inlet means which are situated at the top of both the drying chamber and the cooling passage, and outlet means at the bottom of the cooling passage, which outlet means communicate with the heating passage near the inlet means thereof. Air cooling means are provided in the cooling passage, between the inlet and outlet means thereof to condense moisture from air flowing downwardly in the cooling passage.

Abstract: Shock absorbing devices utilize rheopexic fluid contained in a deformable sealed chamber which is subjected to external shock forces. Upon application of the shock forces to the deformable sealed chamber, the rheopexic fluid filled therein is exerted with shear stress which causes the rheopexic fluid to increase its consistency and shock absorbent characteristics as a function of increasing shear stresses applied thereto. Additionally, when used in an application wherein the device is placed against a body part of a user, the rheopexic material "molds" itself to the body portion of the user. When left at rest, the rheopexic material returns to its initial fluid, low-consistency state.

Abstract: Footwear with a sole portion for protecting the lower surface of a foot only and support means for slidably receiving the foot for securing the footwear thereto while leaving the toes, heel, and ankle entirely exposed is provided with a pocket on or in the support means opening outwardly to permit insertion and removal of small items. A closure means at the opening of the pocket permits selective restricting of access to the pocket. In one embodiment the pocket is formed in the space between two superimposed layers of material comprising the support means, and the opening of the pocket is formed in the one of the two layers outermost from the foot of the wearer.