Abstract: A livestock holder, for example, for castrating operation of pig, includes a pair of holding means driven by a drive means. The livestock is securely held at its body between both of the holding means in a desirable condition.

Abstract: Steam generator for pressurized-water nuclear reactors having a steam jacket wherein a multiplicity of rectilinear tubes traversed by primary water is secured between two horizontally disposed tube support plates, and at least one connecting tube for supplying the primary water is secured to the steam jacket through a compensator for length equalization, includes a water chamber respectively disposed within the steam jacket and adjoining each of the tube support plates, and a guide jacket for circulating feed-water supplied into the steam jacket, the guide jacket being mounted within the steam jacket and having a lower portion extending into a space located between the steam jacket and the lower tube support plate.

Abstract: A control circuit for a fuel-injected internal combustion engine provides a substitute program for generation of fuel injection control pulses during engine starts at low temperatures. The substitute injection control pulses are made dependent on the ambient or engine temperature in the sense that, the lower the temperature, the greater is the length of the injection pulses, i.e., the larger is the quantity of initially injected fuel. The length of the injection pulses also depends on the elapsed duration of the engine starting attempt in the sense of gradually reducing the injected fuel quantity as the unsuccessful engine cranking proceeds. A fully opened throttle during engine cranking signals a flooded engine condition and completely interrupts fuel injection.

Abstract: A rotational speed detecting apparatus for controlling the operation of an electronically controlled fuel injection system in accordance with the rotational speed of an engine. A reference pulse generator is connected to generate a reference pulse signal in synchronism with a pulse signal which is generated by the fuel injection system in substantial synchronism with the rotation of the engine. The reference pulse generator is further connected to change the time width of the reference pulse signal in response to the operation of a starter motor and a throttle valve so that it represents the predetermined rotational speeds of the engine. A comparison circuit is connected to compare the one cycle period of the pulse signal with the time width of the reference pulse signal. The output signal of the comparison circuit is applied to the fuel injection system so that it controls fuel enrichment and fuel cut-off operation of the fuel injection system.

Abstract: A two-part variable compression ratio cylinder is provided having inner and outer sleeves wherein relative movement between the sleeves varies the volume of the combustion chamber and hence varies the compression ratio of the engine. Hydraulic means responsive to the pressure in the combustion chamber automatically varies the position of the inner and outer sleeves to regulate the combustion chamber volume. The hydraulic controls are located entirely in the cylinder head facilitating the conversion of any internal combustion engine without altering the piston size.

Abstract: The invention herein consists of a plate-like member disposed between the carburetor and the intake manifold of an internal combustion engine and has a bore therethrough in register with the throat of the carburetor and the intake of the manifold.

Abstract: An engine exhaust gas recirculation system has an E.G.R. passage for recirculating exhaust gases from an exhaust system of an engine back into an intake system thereof downstream of a throttle valve. The E.G.R. passage has a restriction orifice therein and an E.G.R. control valve responsive to a vacuum signal to control the recirculation of exhaust gases through the E.G.R. passage. A pressure comparator and modulator is pneumatically connected to the E.G.R. passage upstream and downstream of the restriction orifice, to the carburetor venturi, to the intake manifold and to the E.G.R. control valve and operative to compare the venturi vacuum with the exhaust gas pressure difference across the restriction orifice thereby to modulate the intake manifold vacuum to be fed to the E.G.R.

Abstract: The device comprises an auxiliary heating liquid circuit connected to the main cooling liquid cricuit of the engine on the suction side of the cooling circuit pump. The cooling circuit has an expansion chamber containing a gaseous phase. The heating circuit has a loop portion constituting a siphon whose upper point is located at a level above the level of the liquid in the expansion chamber. A pipe connects the loop portion to the upper part of the expansion chamber and is located throughout its path above the level of the liquid in the expansion chamber.

Abstract: Liquified coal fuel is maintained in a liquified state by surrounding the injection pump, injection nozzle, suction line, pressure line and overflow line with jackets through which a heating medium is passed. The jackets surrounding the suction line, overflow line and pressure line are corrugated for expansion and are connected via bellows-like sealing bodies and flanges to the jacket surrounding the pump housing. Outlets are provided for leakage and are connected to separators to remove the fuel from the heating medium.

Abstract: There is disclosed an automatic control system for limiting the operating temperature of a diesel engine having a shut down lever that repositions the rack of its fuel pump to a shut down position that closes the pump metering valves and shuts off the fuel supply to the engine. The system includes a pyrometer to sense the exhaust gas temperature from the engine and generate a signal therefrom, a temperature controller having an adjustable, maximum set point temperature to receive the signal from the pyrometer and to generate a control signal which is applied to a control valve in a fluid pressure line which applies fluid pressure to a pressure responsive actuator that moves the shut down lever a fraction of its full travel necessary for shut down and thereby repositions the fuel pump rack to a throttling position in response to a sensed exhaust gas temperature which exceeds the preselected maximum set point temperature.

Abstract: A centrifugal regulator for an internal combustion engine having a fuel injector controllable by actuation of a control rod. Movement of the governor sleeve upon a variation in rpm is transferred to a spring-biased support lever, which is pivotally connected to a guide lever by a fixed pivot thereof, which guide lever is pivotally connected to an intermediate lever by a fixed pivot thereof, which lever is provided with a pivot axis and a link connecting it with the control rod. Various types of relationship between fuel injection rate and rpm are obtained by means of several differently placed adjustable or resilient stops provided on the spring-urged support lever and in the regulator housing. These stops come into play in a multi-stage serial relationship, allowing the support lever and the intermediate lever to severally pivot and rotate, thus transferring governor sleeve movement to the intermediate lever and the control rod.

Abstract: A recoil-type starter for an internal combustion engine. The starter includes a drum with a starting wire wound around it. The drum is disposed to confront a driven member such as a fly-wheel which is in turn operably connected to the engine. A starting pawl is pivotally secured to a peripheral portion of the drum, and is adapted to be pivotally moved to project radially outwardly of the drum into engagement with a cooperative projection formed on the driven member as the drum is rotated by pulling the starting wire, thereby to impart a starting inertia to the engine through the driven member. A stop is unitarily formed on the drum for limiting the outward pivotal movement of the starting pawl. The stop is positioned to abut a portion of the starting pawl close to the outer end of the latter at which the cooperating projection of the driven member contacts from the radially outer side of the drum.

Abstract: The invention relates to energy conversion devices for converting between fluid flow energy and rotational mechanical energy, utilizing "Coriolis" forces which are produced when there is a relative motion velocity non-parallel to an instant rotation axis direction. In one embodiment, two piston members move around in an annular chamber of a housing member journalled on a support member for rotation relative thereto about a first axis extending in a diametral plane of the annular chamber, the support member being journalled for rotation about a second axis intersecting and transverse to the first axis, the second axis being a stationary axis forming the principal axis of rotation. With pressurized fluid applied to move the pistons around, the device operates as an engine. In a second embodiment, means are provided for effecting combustion of an air-fuel mixture within the annular chamber, to provide an internal combustion engine.

Abstract: A solar heating system operating on a phase-change cycle and suitable for operation in buildings. A solar heating panel is positioned to receive solar energy, and fluid passages within the panel are connected in a sealed closed fluid system. The closed fluid system is charged with a fluid medium which is vaporized by solar heating occurring in the solar panel. The heated vaporized fluid flows through energy extraction devices which do work while utilizing energy extracted from the vapor. The vaporized fluid flows to a condensor in heat exchange relation with a heat storage medium, such as a tank of water. The heat of vaporization given out by the condensing vapor is supplied to the heat storage medium, and heat can then be withdrawn from storage for space heating or for other purposes. The solar heating panel can be a composite structure fabricated from rolled sheet metal, which provides a substantial reduction in unit cost of the heating panel.

Abstract: A solar collector panel absorbing incident solar energy at a high rate while radiating only a small portion of the absorbed energy comprises aluminum or an aluminum alloy as a continuous metallic substrate carrying an anodized oxide layer not substantially thicker than 1 .mu.. The exposed anodized surface is formed with a multiplicity of pores receiving nickel rods of microscopic dimensions which project from the oxide surface. When the pores are spaced apart 0.1 to 1 .mu. and have a diameter of 0.1 to 0.5 .mu., the nickel rods being dimensioned correspondingly, the panel has the desired properties.

Abstract: A horizontally mounted solar collector for collecting solar energy utilizing a vertical deflector assembly, a stationary reflector and a collector. The deflector assembly contains a plurality of vanes which change the direction of the solar energy to the vertical, while constantly keeping the same side of the deflector facing the sun. The vertical rays are then reflected off the stationary reflector and are then absorbed by the collector.

Abstract: Solar heating apparatus comprising units that can be assembled on roofs and outer side walls of buildings easily to give the buildings an aesthetic beauty.

Abstract: A collector of waves, such as of solar radiations entering from any direction, concentrates them upon a receiver that converts them to useful purposes. Moderate concentration factors are achieved without the necessity of tracking the sun. The reflective surface of the collector is a semicircular arc; developed by rotation about an axis either in the plane of the arc passing through the center of curvature to form a hemisphere, or in the plane of the arc and tangent to one end to form a hemitoroid with a central cusp, or about some other axis; or some combination of these shapes. The device is compounded to provide an increased concentration factor. Means are taught for adapting the device to heat-collecting plates, heat pipes, or photovoltaic conversion devices (solar cells) of either disc, ribbon, or tube construction and for installing the device on surfaces of buildings with or without the capability of tracking the sun.

Abstract: A collector of waves, such as of solar radiations entering from any direction, concentrates them upon a receiver that converts them to useful purposes. Moderate concentration factors are achieved without the necessity of tracking the sun. The reflective surface of the collector is a semicircular arc developed by rotation about an axis either in the plane of the arc passing through the center of curvature to form a hemisphere, or in the plane of the arc and tangent to one end to form a hemitoroid with a central cusp, or about some other axis; or some combination of these shapes. The device is compounded to provide an increased concentration factor. Means are taught for adapting the device to heat-collecting plates, heat pipes, or photovoltaic conversion devices (solar cells) of either disc, ribbon, or tube construction and for installing the device on surfaces of buildings with or without the capability of tracking the sun.

Abstract: A collector of waves, such as of solar radiations entering from any direction, concentrates them upon a receiver that converts them to useful purposes. Moderate concentration factors are achieved without the necessity of tracking the sun. The reflective surface of the collector is a semicircular arc developed by rotation about an axis either in the plane of the arc passing through the center of curvature to form a hemisphere, or in the panel of the arc and tangent to one end to form a hemitoroid with a central cusp, or about some other axis; or some combination of these shapes. The device is compounded to provide an increased concentration factor. Means are taught for adapting the device to heat-collecting plates, heat pipes, or photovoltaic conversion devices (solar cells) of either disc, ribbon, or tube construction and for installing the device on surfaces of buildings with or without the capability of tracking the sun.

Abstract: A solar radiation energy concentrator adapted to convert solar radiation into useful forms of energy, comprising a base member with a longitudinally extending hollow chamber, said chamber having an open end therein for admission of solar radiation therethrough; integrally affixed in said open end is a convex glass magnifying lens adapted to receive solar radiation impinging thereon and focus said radiation into a concentrated area on a heat absorbing sensor device located adjacent in that end of said chamber distal from the open end. The concentrator includes a heat exchanging system integrally juxtaposed with refractory lining on the chamber wall, for delivery of the energy input into the designated system.

Abstract: A water-borne solar energy collecting and converting system employing an azimuth-tracking, floating platform equipped with reflectors and associated thermal collector tubes.

Abstract: A thermal shield device is provided for association with a flue extending from a combustion chamber and which shield device comprises a substantially U-shaped member comprising radially spaced inner and outer walls and with the shield being positioned parallel to the vertically extending flue and covering approximately 180.degree. of the periphery thereof, normally between the flue and an adjacent wall, the flue being open ended and having a deflector collar or neck positioned at its upper end connecting to the open or hollow interior thereof for deflection of hot air rising through the shield out into the room, and with other deflector members being positioned intermediate the inner wall of the shield and the adjacent flue to deflect hot air rising along the flue periphery out into the room.

Abstract: A method is disclosed for detecting the intentional disabling of muscles which includes the steps of measuring the neuromuscular activation in a disabled muscle and comparing the neuromuscular activation of the muscle with that of a control muscle when performing a specified work task. To perform this comparison, an integrated electromyogram (emg) of a muscle which is synergist to the disabled muscle is compared with the integrated emg of a synergist control muscle wherein the control muscle corresponds to the disabled muscle but is on the opposite side of the human body or is the same muscle in a control population. Where only one muscle of a given type exists, the integrated emg thereof is compared with the norm of a matched population when performing the work task.

Abstract: A system for determining the time of ovulation in females including a probe which measures the body temperature and a probe which measures body potential of a female subject, an electronic amplification circuit and an indicating device which is capable of measuring small changes in temperature and body potential of the subject thereby providing a portable and convenient device for determining time of ovulation.

Abstract: A cathode for polarographic measurements in physiological medium, such as measuring oxygen partial pressure in a human or animal body, is comprised of an elongated cable having a conductive filament, such as a steel wire or a carbon fiber enveloped within an insulating material, such as a layer of polyurethane and sheated in a body-tolerable insulating material, such as a layer of polytetrafluoroethylene. The proximal end of the conductive filament is coated with a layer of a precious metal, such as gold or platinum, and the front face of the cable is provided with a layer of an oxygen-permeable electrically conductive membrane, such as composed of polymethylacrylate or polystyrene. The distal end of the conductive filament is connected to an electrical source, a signal display means and/or a signal processing means.

Abstract: A system is provided for measuring psychological suggestibility components in which certain physical stimuli are applied to a subject's arm or other body part and the subject's reaction is detected. The arm is supported by three parallel bar members, the intermediate member being stationary and the two outside members being moved downwardly to suggest to the subject a downward movement of his arm. In addition, squeezing forces are applied through a flexible and stretchable element extending from one of the outside members over the arm to the other of the outside members. Also, pointed prongs are movable downwardly against the upper surface of the subject's arm to apply uncomfortable pressure thereto. The vertical position of the subject's arm and vertical movement thereof are indicated by lights energized from contact devices associated with certain of the prongs.

Abstract: A tubular medical instrument has at least one cuff assembly including two cuffs disposed on the circumference of a flexible sheath, spaced at prescribed intervals and made expansible only in a radial direction of the flexible sheath and a deformable propellant cuff having a doubled-back section, disposed also on the circumference of the sheath between the two cuffs. When air is introduced into, or drawn from, the three cuffs selectively, the flexible sheath automatically advances step by step in the human body cavity.

Abstract: A mouthpiece comprising a tubular member about which a person may voluntarily place his lips in an air-tight manner for preventing a passage of air between the lips and the mouthpiece, said tubular member having a principal and a side air passageway and a blade-like member extending from one edge thereof, forming a tongue retractor for restricting the movement of the person's tongue and preventing it from obstructing a flow of air through the principal air passageway, is described. For evaluating respiratory processes, the cross-sectional area of the principal air passageway of the tubular member is large enough so as not to significantly affect the then current physiology of the respiratory process being evaluated. For use in administering medication, there is provided, in the interior wall of the mouthpiece, means, such as vanes or gun-barrel rifling, for controlling the air flow therethrough to the throat areas.

Abstract: An oral and personal hygiene device for cleansing portions of the human anatomy by means of ultrasonic vibrations. The disclosed embodiment includes a fluid compartment, an ultrasonic transducer, an ultrasonic implement surrounding the transducer, and a fluid delivery pump which is connected between the compartment and the ultrasonic implement. The fluid delivery pump is operable to fill a human anatomical cavity with fluid and is designed to shut itself off once the cavity has been filled. The ultrasonic implement delivers ultrasonic vibrations from the transducer to the fluid within the cavity whereby ultrasonic vibrations are transmitted in the form of cavitating action to all regions of the cavity for removal of foreign material such as food particles. During this cavitating action, the ultrasonic implement remains virtually stationary and is not required to be moved in and around the cavity to assure cleansing of all areas.

Abstract: A device for personal protection against sexual assault. The device consists of a tube which is closed at one end open at the other and adapted to be located in an orifice in the body of a person, a weapon, such as a pointed shaft, in the tube, means in the tube biasing the weapon towards the outside of the tube through the open end and a trigger at the open end of the tube adapted to hold the shaft in the tube against the bias of the biasing means and to release the shaft to the biasing means on application of pressure to the trigger in the axial direction of the tube.

Abstract: Apparatus for supplying a mixture of oxygen and air for respiratory purposes and comprising a supply regulator having a first chamber with an inlet and an outlet for oxygen and a second chamber with an inlet and an outlet for air, control means responsive to a higher pressure in said first than said second chambers to permit air to enter said second chamber, adjustment means for modifying the action of said control means, first and second restrictors in the first and second outlets respectively, the second restrictor bore being larger than that of the first, said first and second outlets leading to a common supply duct and then to a first demand regulator responsive to an inspiration pressure drop to permit a flow of gas therethrough.

Abstract: Combination anesthesia and intensive care unit having an anesthesia apparatus in the form of an analgesia generator and a anesthesia respirator and with a vaporizer and CO.sub.2 absorber mounted thereon. A removable chair assembly is connected to the stand and is to be used by the anesthesiologist in operating the anesthesia apparatus for intensive care. A respirator and a patient breathing monitoring apparatus are also mounted upon the stand. When used as an intensive care unit, the chair assembly can be disconnected from the stand.

Abstract: The patient breathing monitoring apparatus is used for monitoring the airway of a patient which has a respirator connected thereto and which is connected to a source of gas. The respirator is of a type which during the inhalation phase supplies inspiratory gases to the airway of the patient and during exhalation phase permits the discharge of gases from the airway of the patient. The monitoring apparatus includes first and second pressure switches each of which has an inlet connected to the airway of the patient. One of the pressure switches is adjustable to sense a decrease in pressure in the airway below a predetermined value whereas the other of the switches is adjustable to sense an increase in pressure in the airway above a predetermined value. An alarm devices is coupled to the pressure switches for giving an alarm when the one switch senses a decrease in pressure below the predetermined value and when the other of the switches senses an increase in pressure above a predetermined value.

Abstract: There is disclosed herein a blood pressure alarm system for use in a dialysis machine whereby alarms may be activated, and a blood pump deactivated if the actual blood pressure increases above or decreases below predetermined levels. The levels are determined by setting a particular blood pressure point and setting the amount by which the pressure can vary above and below the set point; the range of variation is sometimes referred to as the alarm window. A digital memory is provided for storing the set point and preventing variation of the set point with time.

Abstract: A device for taking and injecting microsamples of liquid comprises a casing having a hollow needle accommodating a plunger. The end of the plunger telescoping outside the needle has a plurality of through-passing transverse bores spaced lengthwise of the plunger and having skew axes, the bores serving as cavities for successively taking a plurality of samples. The plunger is connected to a slider having a handle. The device has means for preventing the slider and plunger from rotating about the longitudinal axis.

Abstract: A self-sealed hypodermic syringe uses Louis Pasteur's principle of the "tortuous path" to maintain a sterile condition within a medicament chamber contained within the syringe barrel without using airtight seals. A double walled stem cooperates with the barrel to form a rear tortuous path. A needle and hub assembly cooperates with a front bore in the barrel together with an overlying needle sheath and front cap to form a front tortuous path. The front and rear tortuous paths are maintained by a breakable bond between the cap and the stem until the syringe is to be used. Another embodiment includes a pin on the front cap which cooperates with the front barrel bore in place of the needle and hub assembly.

Abstract: A tampon-applicator assembly of reduced length is provided comprising a generally cylindrical absorbent tampon having a proximal end and a distal end and a tampon bore within the tampon extending from said distal end toward the proximal end. A retainer is affixed to the distal end and has a bore therethrough coaxial with the tampon bore. A plunger is provided and adapted to be stored within the bore prior to use and to be reciprocated out of the tampon bore when the tampon is to be inserted. Screw threads or longitudinal splines are provided for the plunger to bear against the retainer. The retainer bears against the tampon when insertion pressure is applied. After insertion, the plunger and the retainer are removable.

Abstract: A tool for surgical preparations having an antiseptic solution contained in a reservoir thereof by a frangible cover and means affixed to a sponge integral to the tool for piercing the cover to release the solution into the sponge.

Abstract: Disclosed is an improved drainage catheter for insertion into and retention in the bladder of the human body, and a novel stylet for use in inserting the catheter through the urethra and into the bladder. The catheter is formed of an elongate flexible cannula having a free and unobstructed open end adapted to be inserted into the bladder to permit drainage of waste material from the bladder and to facilitate the insertion of diagnostic instrumentation into the bladder. The end of the catheter in the bladder can expand to widen the opening and cause the open end to lie lower in the bladder. The stylet is an elongate flexible member adapted to be inserted into the cannula prior to the cannula being inserted into the urethra. The cannula and the stylet have cooperating stop means to prevent the stylet from passing through the cannula beyond a predetermined point so that the stylet can be used to push the cannula through the urethra and insert the open end into the bladder.

Abstract: An artificial cardiac pacemaker for use with a heart comprises an output feedback preventing circuit for applying stimulating output pulses developed by the pacemaker to a heart while preventing the pulses from being fed back into the pacemaker and for detecting cardiac signals from the heart. A selective converter circuit is connected to the output feedback preventing circuit and functions to convert negative cardiac signals from the heart into positive signals and apply the signals to a low pass filter circuit which filters the signals to eliminate high frequency noise. A resettable circuit for the refractory period is connected to receive the filtered signals and establishes a predetermined refractory period after each QRS signal from the heart and provides a corresponding trigger signal to a delay circuit which responds thereto to provide a trigger pulse after a predetermined time delay.

Abstract: Apparatus and method for the treatment and active massage of muscles, the apparatus comprising a generator arrangement providing a modulated alternating current with a medium-frequency carrier having a frequency comprised between 3000 Hz and 100,000 Hz, and an adjustable low modulating frequency of a fraction of 1 Hz, preferably both the carrier and the modulating currents being sinusoidal. Directly or after optional conversion to a polyphase current, a variable modulated current is supplied to electrodes placed about a body portion, e.g. a limb, whereby the current is made to flow transversally through the muscles, producing painless rhythmic muscular contractions.

Abstract: Laminate sheet materials having outer fabric layers and an intermediate non-woven fiberfill layer are provided, which are particularly suitable for use in making molded, one-piece, bra cups. The sheet materials are uniformly pre-shrunk, and include fabric outer layers that are securely rather than lightly bonded to an intermediate fiberfill layer by amounts of adhesive that substantially penetrate the intermediate layer.

Abstract: An apparatus for accepting unthrashed material that is being fed axially into the cylinder of an axially flow combine. The apparatus includes a three bladed impeller that when rotated generates a frustum of a cone with the larger end of the cone frustum being generated by the leading edges of the impeller blades. The leading edge of each impeller blade being swept back such that the outermost portion of the leading edge of the impeller blade trails a line radiating from the point on the rotor axis where the impeller blade originates from.

Abstract: A cigar, cigarette or similar smoking product is perforated immediately prior to wrapping by a set of needles mounted in a block arranged to be moved onto the cigar or cigarette to be perforated. The needles are guided and protected by an apertured stripper plate which is mounted on the block for movement in the direction of the needles. The stripper plate is provided with spring loading between itself and the block so as to urge the stripper plate away from the block.

Abstract: The invention concerns a method and apparatus for conditioning and/or drying or otherwise treating tobacco, in which cut tobacco is treated with a liquid and/or vapour medium in a chamber in which a columnar bed of the tobacco is maintained in a fluidized state by air, which may be heated. The treatment medium may comprise water, which is introduced as a spray into the bed and/or in co-current with the fluidizing air through diffusing means at the bottom of the bed, and/or steam. The tobacco may be treated in continuous flow or batchwise.

Abstract: A smoking device such as a bong, or water pipe, for smoking rare and expensive tobacco whereby the smoke is filtered by a liquid substance such as water before it is inhaled by the user. The bong includes a smoking bowl for holding the tobacco and allowing the smoke generated therefrom to be filtered through the liquid. To facilitate the placing of the tobacco in the smoking bowl, an automatic loader is employed.

Abstract: A water pipe for smoking has two superposed water chambers with a tobacco chamber leading to the lower of said water chambers, a goose neck tubular element communicating with both water chambers, a carb hole between said water chambers and an outlet above the uppermost of said water chambers so that smoke from burning tobacco in said tobacco chamber can be drawn through both water chambers to said outlet to cool said smoke.

Abstract: A base member has a recess in its top surface, and the bottom wall of the recess has a vertical socket arranged to hold a cigarette upright. A flexible tube is connected into the base member for communication with the socket and has a smoking tip whereby a cigarette in the base member can be smoked by a person remote from the cigarette. A hollow lid is employed which can be locked in place on the base member to prevent access to the cigarette being smoked. The lid has apertures placed at selected upper and lower portions therein to provide a draft ventilation for cigarette smoke.

Abstract: The hair shaping composition or fixative includes a straight chain dialdehyde having from 2 to 6 carbon atoms, preferably glyoxal in amounts from 0.5 to 10% by weight, as the active ingredient. The relaxer includes from 1 to 15% by weight trisodium phosphate as the active ingredient. The process for treating the hair comprises cleaning the hair, applying the relaxer thoroughly to the hair, heating the hair until the desired relaxation is achieved, rinsing the relaxed hair, applying the fixative thoroughly from the roots to the tips of the hair, heating the hair, rinsing the hair and thereafter styling the rinsed hair, if desired.