Abstract: A cross bow pistol is disclosed having a release mechanism comprising a wheel having pairs of notches spaced equidistantly around its periphery. One of each pair of notches is adapted to receive the bow string and its associated notch is adapted to receive a trigger sear. Each sear notch also is engaged by a safety hook adjacent the bow string notch at the top of the release wheel. There is also disclosed an arrow holder of resilient deformable material at the front end of the cross bow which has a central opening for holding the front end of an arrow in position for firing. The arrow holder is split into two portions to permit the arrow vanes to pass through the holder. There is also disclosed a vertically adjustable rear sight and a slot and screw holding configuration for the bow.

Abstract: A grill assembly having separable parts selectably useable together for different arrangements. The assembly includes a column, a base, a grid, a handle and a fire pan. The grid and column may be used without use of the other parts.

Abstract: An apparatus for extracting heat from the waste gases of a stove to heat the air in the room. The apparatus is mounted on the stove and includes a central chamber in which an inner core, having a plurality of passageways, is positioned. Waste gases from the stove enter the central chamber, pass through the passageways of the inner core so as to heat the air surrounding the inner core, and then exit from the central chamber. A removably mounted closure is mounted on the top end of the central chamber to enable cleaning of the insides of the passageways. A heat shield which extends below the bottom end of the central chamber so as to surround the back and sides of the stove is provided to protect adjacent walls from the heat radiated by the stove.

Abstract: A maximum efficiency stove or furnace for heating homes or other buildings. The stove includes a primary combustion area for burning a primary fuel, such as wood, and secondary combustion areas for burning the gases of combustion after they leave the primary combustion area. The combustion chambers and areas are at least partially surrounded by air heating enclosures through which ambient room air is forced, preferably by a fan, for heating. Air for sustaining combustion is preheated in a preheating chamber and fed through separate intakes to both the primary and secondary combustion areas. A single draft control is provided to control air flow through the preheating chamber and to simultaneously control the flow of preheated air to and through both said primary and secondary combustion air intakes.

Abstract: This invention is directed to a heat circulating fireplace arranged and constructed to control the temperature in which air is delivered to an insert module and to control the temperature of the heated air discharged into the fireplace room and/or adjacent rooms. The fireplace includes an air control assembly operably coupled to an insert module which is adapted to be mounted into an existing fireplace or may be part of the original fireplace assembly. The air control assembly including damper means is associated with the fan means and is capable of proportioning outside air and/or room air into the insert module so as to maintain a predetermined temperature of heated air being discharged. The damper means is operable to control or proportion room air and/or outside air to maintain a desired temperature gradient between air to be heated and discharged air to the fireplace room and/or adjacent rooms. Air inlet ducts and heated air outlet ducts are coupled in fluid communication to the insert module.

Abstract: A solar operated chemical heat pump useful in both the heating and cooling modes. This system includes an insulated tank containing a fluid which is heated from the exterior. A heat sink in the form of a second tank is also employed. A water-ammonia solution is present in each tank, and conduit means are provided for respectively conducting the vapor of each tank into a bubble plate or similar structure of the remaining tank, this for effecting a thorough dispersion of incoming vapor into the liquid of the respective tanks. Heat from a solar heat source is used to heat the liquid of the first tank to drive off vapor under pressure so that the ammonia gas released can be bubbled through the water of the second tank. This process serves to gradually reduce the ammonium ions in the liquid of the first tank and enables the second tank to serve as a heat sink for the system.

Abstract: A spiral passage chemical converter-heat exchanger formed by a cross-sectally rectangular housing containing a pair of rows each containing a plurality of side-by-side passages. The rectangular housing is wound into a spiral with the innermost row forming inlet passages and the outermost row forming outlet passages. Thermal contact exists between inflow passages and outflow passages. The outer end of the spiral is connected with an inlet and an outlet. The inlet joins the innermost row of passages and the outlet joins the outermost row of passages. The inner end of the spiral is capped, with a common wall separating the upper and lower passages slotted so that fluid flows from the inlet passages to the outlet passages. As can be seen when the structure is in a spiral, the inlet passages are between the outlet passages with the outlet passages forming the outer exposed surface of the spiral and the inlet passages forming the surface of the opening through the spiral at the center.

Abstract: This invention relates a solar energy collector device having a central heat absorber of unique shape, said absorber including planar surfaces extending therefrom, said planar surfaces connected to a tube-like central member to increase the absorption capacity thereof.

Abstract: A solar energy collector formed of a black plastic material in a rigid, unitary, one-piece self-supporting construction. The collector is formed with inlet and outlet manifolds and a multiplicity of fluid flow passages extending therebetween. Each passage is provided with at least one flow restriction to provide a uniform distribution of flow through all passages. A series of such collectors are connected to form an array incorporated in a multipurpose, collapsible structure for heating swimming pool water.

Abstract: In a control system and method which utilize at least two magnetically retentive bodies, each of which has a given magnetic domain orientation, preferably at least one of these bodies is supported by a supporting structure for movement or balance with respect to the other to assume due to its natural magnetic interaction with the other body a monostable position or force interaction providing between the bodies a first magnetic relationship which achieves a first effect which is monostable under the influence of random disturbances. A structure capable of temporarily creating a polarizing magnetic field of sufficient strength is utilized for changing at least one of the above magnetic domain orientations thereby eliminating the first magnetic relationship.

Abstract: Speculum apparatus for use in connection with gynecological endoscopy examination includes a first substantially L-shaped inner member defined by an elongate first handle portion, a first dilating portion extending angularly with respect to said first handle portion, and a first connecting portion integrally interconnecting the first handle and dilating portions, and a second substantially L-shaped outer member defined by an elongate second handle portion, a second dilating portion extending angularly with respect to said second handle portion, and a second connecting portion integrally interconnecting said second handle and dilating portions. The connecting portion of the outer member is received within the channel shaped interior of the first connecting portion and shoulders defined on the second dilating portion engagingly mate with terminal edges of wall portions provided on the first connecting portion so as to provide a detachable pivotal interconnection between the inner and outer members.

Abstract: A device for applying compressive pressures to a mammal's limb from a source of pressurized fluid comprised of a first and second chamber with the first chamber being fluid impervious and the second chamber being semi-permeable for virtually continuous ventilation. The device has both a means for connecting the chambers to a source of pressurized fluid and a retaining means for positioning and directing the expansion of the chambers on to the limb to provide aid in blood circulating.

Abstract: A sex-aid of medical application which comprises a support element intended for location adjacent and in contact with an erect or partially erect penis so as to maintain the same in an upwardly directed disposition, and a belt or the like engageable with the support element and intended to extend about the wearer's body for linking the support element thereto.A method of producing such a sex-aid is also disclosed.

Abstract: Oxygen is mixed into hydrogen for use as breathing gas for divers, pressure chambers and the like in precise and regulated amounts. Provision is also made to prevent explosion of these mutually reactive gases during mixing.

Abstract: A volume-cycled lung ventilator providing for both spontaneous breathing of a patient and intermittent mandatory ventilation, the invention provides two parallel inspiratory flow paths, one flow path including a demand valve for supplying gas to the patient during spontaneous breathing and the other flow path including a solenoid-operated inspiratory flow valve for providing intermittent mandatory breaths. The invention provides structure capable of adjusting the intervals between mandatory breaths, the volume of each such breath and the flow waveform of each such breath. An expiratory flow path including a fluid operated expiratory flow valve is further provided. A flow rate signal generator in the expiratory flow path acts to sense the rate of exhalation of the patient and is effective to inhibit the opening of the inspiratory flow valve unless the rate of exhalation is below a predetermined value.

Abstract: The invention relates to the control and regulation of glycemia (that is the glucose rate in blood) for diabetic patients. The device comprises means for sampling the total blood of a diabetic patient 2, means 9 for determining the glycemia of the blood, an electronic unit 11 providing, as a function of the indications at 9, the operation of pumps 15 apable of injecting insulin or 16 capable of injecting glucose. There are also provided recording means for the glycemia 14 and a sound alarm.

Abstract: A system for ear irrigation, consisting of an applicator for applying a solution of water at a temperature of 100.degree. F. to 105.degree. F., and at a pressure pulsating between 0 and 75 psi, at a frequency substantially above 100 cycles per minute--preferably 1,000 cycles per minute or somewhat higher.The flow of liquid is supplied to the ear by means of an applicator having a tapered end, which ends in a smooth convex manner. The tube connects by a male connector to a standard female counterpart, using a pulsating dental irrigation device. The distal end inserts into the ear, and has a smooth convex ending. At the distal end, three holes are present with accompanying three grooves. The position of the three openings provides for a pulsating solution to eject through two holes on one side and one hole on the opposite side. Thus, the solution rocks the cerumen, pulses the cerumen, and washes it. Yet, it does not strike or injure the eardrum.

Abstract: A flexible cup contains a medicinal substance and the open face of the cup is pressed against a subject's ear skin by a pin passing through the cup and ear. A compensating member on the end of the pin presses the ear into the cup to maintain contact with the medicinal substance.

Abstract: An inhalation device by which powdered medicaments can be orally or nasally inhaled by a patient through a nozzle. A hollow body shell has a chamber therein. An air inlet leads into the chamber. A capsule retaining means has an inlet opening outside the chamber through which the capsule can be inserted. The retaining means is arranged to retain an inserted capsule with a portion of the capsule body projecting into the chamber as well as to squeeze and deform the overlapping portions of the capsule body and capsule cap. A capsule opening means is located inside the chamber. Said opening means and said retaining means are relatively movable and are so disposed that relative movement between them brings the projecting portion of an inserted capsule and the opening means into engagement with one another so as to separate the capsule body from the capsule cap. A guard prevents the separated capsule body from passing through the nozzle.

Abstract: The temperature of the cutting edge of a surgical cutting instrument is maintained within a preselected temperature range for surgical cutting and simultaneous hemostasis by conducting heat from a thermal distributing means that is disposed along the cutting edge of the instrument. The thermal distributing means selectively heats regions of the cutting edge that are locally cooled by the tissue contact of surgical cutting by condensation in the regions of the cooled edge of previously evaporated fluids, with concomitant release of the heat previously absorbed upon evaporation of the fluid.

Abstract: A cryosurgical instrument having a tip which is cooled by the Joule-Thomson expansion of a pressurized gas. The gas is conveyed to the tip by an inlet tube and exhausts through an exhaust tube connected to the rear of a fitting. The tip is connected to the forward portion of the fitting. The rear and forward portions of the fitting are rotatably connected by a bearing coupling which enables the tip to be rotated independent of the inlet and exhaust tubes.

Abstract: A differential pressure sensing device is fully implanted in the body of a patient to monitor internal pressure such as intracranial pressure. A movable element in the sensor communicates on one side with the internal pressure to be measured and on the other side with an external pressure which is applied by an external pressurizer-control system and which is communicated to the sensor through the intact skin. An imbalance of the two opposing pressures causes a displacement of the movable element which changes a physical characteristic of the sensor, such as the resonant frequency of a tuned L-C circuit. This change is detected outside the body by an external detection system, such as a frequency swept radio frequency oscillator. The external pressure is varied until the external detector senses that the pressures are balanced on the movable element, at which point the external pressure equals the internal pressure, and the former is measured and read out.

Abstract: A differential pressure sensing device is fully implanted in the body of a patient to monitor internal pressure such as intracranial pressure. A movable element in the sensor communicates with the internal pressure of the body to be measured on one side and the atmospheric pressure on the other, the latter communicated through the intact skin and a nearly coplanar membrane. The movable element's differential pressure dependent displacement changes a physical characteristic of the sensor, such as the resonant frequency of a tuned L-C circuit, and the change is detected external to the body by a radiating detector system, such as a frequency swept radio frequency oscillator, by which the internal pressure is read out.

Abstract: Ultrasonic examination for carcinoma of the breast is accomplished rapidly and reliably by the method and apparatus disclosed herein. The apparatus is comprised of a compartment in which water is drawn upward, by suction, over the breast being examined, and in which an ultrasonic transducer revolves around the breast to obtain complete 360.degree. scans. The patient can be seated in a comfortable position during the examination, and the total time required for examination in an asymptomatic case is estimated to be less than five minutes. The suction holds the breast in place, and there is no need for a membrane to cover the breast, thus improving the accuracy of the test. Various cross-sectional images of the breast may be generated by a conventional two-dimensional B-mode scanning technique.

Abstract: The operation of a patient's cardiovascular system is analyzed by positioning an inflatable cuff over an extremity of the patient so that a blood vessel in the extremity experiences the cuff pressure and then modifying the pressure in the cuff through a cycle in which the vessel is occluded. A first electrical signal is generated as a function of the pressure in the cuff during the cycle and a second electrical signal is independently generated as a function of the rate of change of pressure in the cuff through use of a transducer which receives a fluid signal proportional to the pressure in the cuff and moves a core with respect to a wire coil to generate the rate of change signal. The two signals are plotted relative to one another and the resulting plot includes information relating to cardiovascular disfunctions such as arhythmia, ischemia and hypertrophy.

Abstract: A cuff mechanism, for use in an automatic blood pressure measuring system requiring no user adjustments to such mechanism, includes an elongated flexible cuff band with a resilient spring associated therewith of a predetermined width defining an enlarged opening for receiving a user's arm. A reversible motor intermittently drives a drum through a slip clutch adjusted to provide a snug, but not occluding, fit of the band about the various sized arms when the drum winds up the band into its contracted state. The spring is generally mounted throughout the width of the band and extends substantially throughout the length thereof which defines the opening in its contracted state. The band is attached to the drum substantially throughout the width thereof so that the drum will exert a uniform force to circumferentially contract the band snugly about the arm and to maintain same in a steady condition.

Abstract: An animal estrus detection apparatus adapted to be secured to the rump portion of a first animal, and actuated by a second animal mounting the first and thereby applying a predetermined amount of pressure thereon a depressible pin. The pin's motion is transferred by a linkage mechanism to a release mechanism, which then disengages an outer cover causing it to fall away and deploy an estrus indicating streamer. The release mechanism may include either a pneumatic or an escapement type release timer which is powered by said linkage and which prevents said linkage from powering said release mechanism until a predetermined period of time has elapsed. The release mechanism may also include a counting mechanism which actuates the release arm only after a predetermined number of successive mountings of said first animal. A second, hydraulic timer, actuated when the outer cover is released, measures the time elapsed since the outer cover's release.

Abstract: A drainage monitor including a collector and a control unit. The collector has a lower, storage section made up of elongated parallel vertical chambers, a liquid manifold section above the chambers with a plurality of taps aligned with the chambers, and collapsible conduits connecting the taps with the chambers. The control unit includes an arrangement for supporting the collector, chamber valving apparatus aligned with the conduits and operable to compress them so as to prevent liquid flow, releasable solenoid-and-latch apparatus for preventing operation of the valving apparatus, and electrical timing circuitry for releasing the releasable apparatus in a predetermined sequence.

Abstract: A syringe is disclosed for taking blood samples which includes a tubular body, a plunger, a sealing member and a needle. The plunger and sealing member in combination are slideably received in the tubular body with the plunger receiving the sealing member for rotational movement about its longitudinal axis. The sealing member has two longitudinally spaced circumferential sealing locations with a cylindrical space between the sealing locations. Two closeable openings through each seal location are established in the sealing member at 180.degree. opposition to each other by a thread extending across each seal. The thread is attached to the plunger so that after blood passes through the seal nearest the needle end of the syringe, the plunger can be rotated to remove the thread from both seal locations thereby sealing the blood sample in the tubular body after all gases have been purged from the tubular body.

Abstract: The invention relates to a novel device for measuring in a quantitative manner surface properties, especially of tissues such as human skin, comprising a probe to be placed on said surface, means for applying a predetermined weight to said surface via said probe, means for removing the weight and means for measuring the change of height against time of the surface when the weight is removed. The probe may also be applied by suction and a force may be applied to it, tending to lift it from said surface, determining the change of height of the surface when said force is applied. The invention further relates to a method for determining surface properties, and especially elasticity, compressibility, viscosity, humidity and stretchability of human skin and for determining the effects of various cosmetic preparations on human skin.

Abstract: A tobacco tamping tool for a smoking pipe including a cylindrical hollow body and a stem having a tamping head at one end telescopingly received within said hollow body member and a spring within said hollow body member normally urging said stem and tamping head to a normally protracted position. The value of the spring is such that as said body member is manipulated to force said tamping head into the bowl of the smoking pipe to depress the tobacco therein, said spring will yield to cause said body member to move downward relative to said stem when the tobacco has been depressed to its desired compaction.

Abstract: A styling comb comprising a plurality of teeth equally spaced approximately 0.25 inches apart, eleven such teeth being disposed along a linear extent of approximately 0.075 inches in overall thickness at their apices.

Abstract: An apparatus and method for curling hair which includes a hair roller featuring an elongated resilient open mesh strip of inherently spring coil design with gripping combs attached to its extreme end portions. The hair roller is provided with resilient means, e.g. three spring wires, for urging the roller into its coiled positon (FIG. 3). A setting lotion packet (FIGS. 3 & 4) including a container surrounded by a foam diffusing strip can be coiled with a strand of hair in the hair roller and the container ruptured to dispense its contents to the curled hair strand. Numerical scales are included along the edges of the roller as a guide in its positioning on the hair strand. Methods of application of the hair roller are sequentially illustrated in FIGS. 6 and 7.

Abstract: A hair holding device for facilitating cutting of hair has a frame arrangeable on a head of a person whose hair is to be cut, and a gauge mounted on the frame for determining the length of hair to be cut. The gauge includes a plurality of wedge-shaped members through which clumps of hair are passed and cut down to the outer surface of the wedge, with each of the wedges being of substantially the same height from the scalp of the person whose hair is being cut in order to give a uniform cut about the head of the person.

Abstract: A dental flosser comprising an elongated handle having a storage chamber for a spool of dental floss and a forked head having two spaced apart arms secured to one end of the handle. A through passageway is provided from the storage chamber in the handle to the forked head to feed a strand of dental floss from the chamber onto and around the outer ends of the arms of the forked head. The connection of the head to the handle includes means to capture and hold the adjacent portion of the strand of dental floss securely when tightened. The outwardly extending length of dental floss is then drawn taut across the span between the outer ends of the spaced apart arms of the forked head, and the free end portion is secured by winding around a circular wedge member. A cutting assembly is provided adjacent the wedge member to enable cutting off the excess portion of the dental strand. The flosser is then ready for use.

Abstract: A coin sorting machine uses a plurality of impedance bridges each including an impedance element corresponding to a particular coin denomination and an element whose impedance is varied by the passage of a coin. The AC signal output from each bridge is compared to a reference level and the comparator output is then compared to a square wave having a period equal to that of the AC bridge excitation signal. When a bridge becomes balanced due to the passage of its particular coin, the comparator output will maintain one value for a time exceeding one period of the excitation signal and a coin can thereby be identified.

Abstract: A gravity-controlled flow valve of the pendulum-type, having a valve body with two chambers which communicate through gaps formed in a separating wall between the chambers and an adjoining outer circumferential surface of a rotary slide valve. A pendulum is connected to the rotary slide valve for movement within the valve body whereby flow apertures in a sleeve-like member are either opened or closed by the rotary slide valve in cooperation with flow apertures in that valve.

Abstract: Sill cock having novel vacuum breaking stem packing assembly to break vacuum between the shutoff valve and the cock and a vacuum breaker shut off valve to close same upon encountering a vacuum or reduced pressure in the main.

Abstract: The disclosed valve has a cylindrical, central, fluid conducting core fixed within a housing by a nut located in the housing in engagement with an integral flange of said core at the latter's inner end, an oscillatory valve element having a cylindrical wall, one end sleeve portion of which extends within a cylindrical space between the housing and the core to control fluid movement through the latter, and an opposite end sleeve portion of said cylindrical wall having an extremity formation in engagement with a knob for operating the valve, and said valve element being invertible during assembling or disassembling of the valve, in which inverted condition said extremity formation coacts with said nut to effect the latter's insertion or removal in the assembling or disassembling of the valve.

Abstract: A fixture for attachment to water lines during installation of plumbing in a building under construction. A closed chamber has a base flange for attachment to a suitable support and a water inlet tube near the base. An outlet tube extends in the chamber from a position near the base and through the other end where it is provided with a valve. The tubes are so arranged in the chamber that the fixture can be installed in either a horizontal or a vertical position and yet trap a body of air in the chamber when supplied with water.

Abstract: A pressure operated water level control device having a movable selector for selecting different water level settings thereof. A heat motor unit is carried by the device and is operatively associated with the selector for moving the selector to a certain low water level setting thereof when the heat motor means is activated.

Abstract: A self-actuated flow control valve having a remote adjustable set-point established by varying the energization of a solonoid having an armature articulated to a piston provided with a fluid inlet orifice and reciprocable in a cylinder having an outlet port throttled by the piston upon an increase in flow above set-point and vice versa to restore the rate of flow to set-point.

Abstract: Apparatus for connecting a tanker to a marine tower comprising apparatus for mooring the tanker to the tower and apparatus for connecting a supply conduit on the tower to a receiver conduit on the tanker. A hose-pipe section is normally stored on the tanker at least in part on a rotary pulley located on the tanker in a manner such that one of the ends of the hose-pipe has connected to it a first connecting element which opens upwardly on the tanker deck. A boom on the tower capable of freely pivoting about the axis of the latter has attached to its free end a second connecting element adapted to cooperate with the first connecting element. A rope passes vertically through the second connecting element whose free end is attachable to the first connecting element to move the first connecting element towards or away from said second connecting element which remains substantially stationary.

Abstract: A substantially funnel-shaped vortex chamber valve having a longitudinal axis assuming an angle to the vertical which is greater than 30.degree., having at least one substantially tangential inlet nozzle disposed in the vicinity of the lowest point of the largest cross-sectional area of the chamber, and an eccentrically arranged venting port disposed in the vicinity of the highest point of the chamber, the venting port having a feedline extending above the level of the head race.

Abstract: An access door primarily designed to provide an insulated entrance to heating, ventilating and air conditoning ducts consisting of a two-pan structure lockably connected together by a simple unfastening means.

Abstract: Thermoplastic tube part provided with a polyurethan foam layer with closed skin and containing an inorganic filler for reducing sound production during flow of water through such tube parts.

Abstract: Described herein are heat recoverable articles comprising a recoverable member held in a deformed condition by a fusible member. When the fusion temperature of the fusible material is exceeded, the recoverable member is able to move in a direction toward that from which it was deformed. The recoverable member may be, for example, an elastomeric member held in a deformed state or a spring member held in a deformed state.

Abstract: A method of providing a row of loops at each end of a forming fabric or a similar fabric, comprising two layers of weft threads, warp threads interconnecting the weft layers, and a locking wire intended to interconnect said rows of loops to form an endless fabric web. The weft threads in a first zone closest to one end edge of the fabric are permanently removed, whereafter the weft threads in an adjacent second zone are temporarily removed and the temporarily removed, or alternatively a corresponding number of weft threads, as well as one or several thin folding wires and one coarse folding wire are arranged as a warp in a loom-like sewing machine known per se, wherein said coarse wire temporarily replaces the locking wire intended finally to interconnect the two fabric end edges.

Abstract: A method for controlling the rate of filling bottles as they are moved by a rotary table, in which position indicating devices are attached to the pistons which move the filling nozzles up and down in the vertical direction, the position indicating devices are detected just before the bottles are discharged from the rotary table to determine whether filling of the bottles is completed by means of two piston position detecting devices A and B which devices are circumferentially spaced-apart so as to define an included angle .theta. of 10.degree. to 30.degree. with respect to the center of the rotary table, and the rotation speed of the rotary table is increased or decreased so that the proportion of completely filled bottles detected by the first or leading detecting device A during each rotation of the rotary table is less than 100% but the proportion of completely filled bottles detected by the second or trailing detecting device B during each rotation of the rotary table is 100%.

Abstract: A device for use in filling bottles with liquid stored in a reservoir is disclosed. The device utilizes a short gas conduit for venting the bottle to be filled. When the level of liquid reaches the level of the conduit, the outflow of gas displaced during the filling process ceases and the filling process is greatly slowed. Liquid which is drawn into the conduit is blocked by a check valve which does not impede gas flow. After such blockage, the device is so constructed as to allow the liquid to drain back into the bottle. This single conduit is used for both the intake and exhausting of gas, as may be required during the filling process.