baber/WOPTO huggingface dataset:
Patent FI-20020865-A (FI)
Inventor: KARJALAINEN MATTI
IPC: H03G5/16
Filed: 2002-05-07
Abstract: The present invention relates to a method for designing a modal equalizer ( 5 ) for a low frequency audible range, typically for frequencies below 200 Hz for a predetermined space ( 1 ) (listening room) and location ( 2 ) (location in the room) therein, in which method modes to be equalized are determined at least by center frequency and decay rate of each mode, creating a discrete-time description of the determined modes, and determining equalizer filter coefficients on the basis of the discrete-time description of the determined modes, and forming the equalizer ( 5 ) by means of a digital filter by defining the filter coefficients on the basis of the properties of the modes. In accordance with the invention following method steps are used: forming a mode detection function (G(Omega)), defining the highest peak angular frequency Omega<SUB>p </SUB>of the function (G(Omega)), making AR analysis of predefined order for solving the poles of the mode representing the highest peak angular frequency, selecting the pole closest to point e<SUP>jOmegap </SUP>on the unit circle, determining the decay time of the mode and if is over a predetermined level, designing a modal correction filter for this mode, and repeating this procedure until no decay time exceeds over the predetermined level, and each individual filter obtained in previous stages of the method is combined to a cascaded filter.
Patent FI-20125483-A (FI)
Inventor: HAVERINEN JANNE
IPC: H04W4/33
Filed: 2012-05-03
Abstract: An apparatus caused at least to acquire information indicating first indoor magnetic field vectors measured by a first portable device inside a building; generate a first indoor magnetic field sequence, IMFS, on the basis of the first indoor magnetic field vectors; acquire information indicating second indoor magnetic field vectors measured by a second portable device inside the building; generate a second IMFS on the basis of the second indoor magnetic field vectors, wherein the first and the second IMFSs represent at least one of the magnitude and the direction of the Earth's magnetic field; perform a comparison between at least part of the first IMFS and at least part of the second IMFS; and acquire information on the relative movement of the first portable device with respect to the second portable device inside the building on the basis of the comparison result.
Patent FR-1604409-A (FR)
Title: Gas filter - with particle sepn by inertia, followed by vertical filter panels
IPC: B01D45/02
Filed: 1968-11-26
Granted: 1971-11-08
Abstract: In a gas or air filter of the vertical shell type having a bottom inlet and a top outlet, baffles are provided to guide and slow down the gas flow so that it drops out most of the heavy particles before going through a cyclone chamber which leads to the shell outlet by way of vertical filter panels. Since the panels are required to collect only the particles not sepd. by inertia, they are efficient for very long periods without building up a back pressure due to blocking. This characteristic is further enhanced by inducing a continual, downward flow of gas across the filter panels to dislodge any loose build-up of filter-sepd. particles.
Patent GB-1019933-A (GB)
IPC: F01B13/06
Abstract: 1,019,933. Reciprocating pumps and motors. K. EICKMANN. Nov. 22, 1962, No. 44122/62. Heading F1A. In a rotary radial cylinder pump or motor the plungers 17 are fitted with enlarged heads 14 to which are articulated link rods 11 which are similarly articulated to floating rings 8. The rings 8 rotate about bearings 7 and the eccentricity of the rings may be varied. Wrist pins 10 are fast either with the rings 8 or the link rods 11 and gudgeon pins 12 are fast either with the plunger heads 14 or the rods 11. The plunger heads have part cylindrical bases which engage in correspondingly shaped slots in the plungers 17 and may be retained by pinning. The heads 14 may reciprocate within the cylinders, in which case the gudgeon pins 12 move in slots in the cylinder walls. Hydraulic fluid is supplied via ducts 22, 24, 25 to pressure balancing chambers 13, 37 in the gudgeon and wrist pins (Fig. 9, not shown).
Patent GB-1047322-A (GB)
IPC: B64C29/00
Abstract: 1,047,322. Gas turbine engine air intakes. HAWKER AIRCRAFT Ltd. Dec. 17, 1962 [Dec. 20, 1961], No. 45724/61. Heading F1G. [Also in Division B7] A horizontally disposed jet lift engine 15 in a pod on an aircraft has an intake in the form of a cylindrical grille 20 flush with the surface of the pod (Fig. 1, not shown).
Patent GB-1050471-A (GB)
IPC: H02P29/40
Abstract: 1,050,471. Control of D.C. motors. DYNA SYSTEMS Inc. July 30, 1963 [Aug. 23, 1962], No. 30222/63. Addition to 1,000,952. Heading H2J. The drive motor, e.g. of a drilling machine, is controlled by adjustment of its shunt field 11 by autotransformers and its armature 10 by thyristors 18 so as to have a linear speed/force curve from a maximum speed down to the stalled condition, and a second, feed motor 35, 36 is controlled in response to the armature current of the first, using saturable reactors 61, 62. The firing angle of thyristors 18 is adjusted by autotransformers in the gate circuit which vary the effect of phase displacing capacitor 21. Adjustment is also effected automatically in response to load current, detected by current transformer 34. The feed motor has a constant field 36 but its armature 35 is supplied through thyristors 42, the gating circuit of which includes windings 63 whose impedance is varied by the state of saturation of the reactors 61, 62; this is determined by the current in control windings 65 which are shunted across a load meter 17 in the drive motor circuit. Adjustment is effected by rheostat 48 in reset windings 64.
Patent GB-1052718-A (GB)
IPC: B41J31/04
Abstract: 1,052,718. Ink-ribbons. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Inc. July 8, 1965, No. 29058/65. Heading B6F. An ink-ribbon is formed of lightweight, resilient and absorbent fabric woven from tubular coils 10 of substantially flat thermoplastic film strip 11, each coil having a helical slit 12 along its entire length of sufficient width to provide access to the interior of the tubular coils, the ribbon being impregnated with ink which is absorbed into the interior of the coils. The tubular coils 10 may be twisted with a number of others to form a multiple strand. Such strands may form the warp and filler threads or in an alternative form only the warp threads while the filler threads may be conventional thermoplastic or textile threads. The thermoplastic material for the ribbon may be extruded filaments of nylon, polyacrylonitrile, polyvinyl chloride, or cellulose acetate having a fineness of about 0À5 denier to 2À0 denier. In making the ribbon, rounded filaments are heated to 150‹ to 250‹ C. and flattened. The flattened filaments are then wound into tubular coils, heated to the softening point, and then quickly chilled.
Patent GB-1052782-A (GB)
IPC: A23B4/20
Abstract: 1,052,782. Improving meat colour. W. L. BROWN and M. L. SCHMUCKER. Sept. 14, 1964 [Sept. 26, 1963], No. 37469/64. Headings A2D and A2E.  The red meat colour in cuts of meat and in meat preparations exemplified by frankfurters, bologna, wieners, ham, bacon, corned beef and chopped, canned meats is improved by contacting the meat, during curing, with a composition which comprises citric acid or a water-soluble citrate, e.g. sodium citrate, and a reducing agent, e.g. ascorbic acid, erythorbic acid (isoascorbic acid), sodium erythorbate, butylated hydroxyanisole, butylated hydroxytoluene, nordihydroguaiaretic acid, propyl gallate or ascorbityl palmitate.
Patent GB-1231168-A (GB)
IPC: C08K5/372
Filed: 1970-02-27
Abstract: 1,231,168. Alkylthioalkanoyl - aminophenols. J. R. GEIGY A.G. 27 Feb., 1970 [28 Feb., 1969], No. 9544/70. Heading C2C. [Also in Divisions C3 and C5] The invention comprises compounds of the formula where R 1  is an alkyl C 1-8  or cycloalkyl C 5-12  radical, R 2  is a hydrogen atom or an alkyl C 1-8  or cycloalkyl C 5-12  radical, R 3  is an alkyl C 4-24  radical and n is an integer from 1 to 3. They are prepared by reacting the appropriate alkylaminophenol and alkylthioalkanoyl chloride. The compounds act as antioxidants for organic materials.
Patent GB-1231503-A (GB)
IPC: A61C1/14
Filed: 1968-09-03
Abstract: 1,231,503. Device for fixing dental tools in handpieces. KALTENBACH & VOIGT. 3 Sept., 1968 [23 Oct., 1967], No. 41897/68. Heading A5R. A combination comprising a support member 11 including a chuck 14 having jaws 14a for holding a dental tool and carrying a clamping nut 15, a holder for receiving the support member 11 and including a rotatable drive wheel 7, the support member having a wheel 17 coupled to the chuck 14 engageable by the drive wheel, an abutment 4 on the holder for holding the clamping nut against rotation, so that when the support member is located in the holder with the nut engaged by the abutment and the two wheels engaged, the drive wheel may be rotated to clamp or unclamp the jaws on the tool. The holder comprises a support 1 and a holding member 2 which may either be fixed to or pivotally mounted on support 1 to enable the support member 11 to be inserted therein. The holding member comprises a body formed with an axial bore in which the drive wheel is located (see Fig. 1) or it may be formed as a mandrel on which the support member in the form of a hand piece sleeve is located (see Fig. 8). Drive wheel 7 is mounted on a displaceable spring-loaded shaft 6 to facilitate reception of the support member 11 on the holder.
Patent GB-1231657-A (GB)
IPC: B60C1/00
Filed: 1967-07-14
Abstract: 1,231,657. Polybutadiene block polymers. INTERNATIONAL SYNTHETIC RUBBER CO. Ltd. 12 July, 1968 [14 July, 1967; 25 March, 1968], Nos. 33348/68 and 33347/68. Heading C3P. A tyre tread or tyre tread stock comprises a vulcanized rubber derived from a block polymer of butadiene having at least two blocks (A) and (B), the first block (A) containing less than 20% 1,2 structure and at least one other block (B) containing more than 30% 1,2 structure, the proportion of block (A) being in the range 5- 95% by weight of the polymer. The polymer may be prepared by polymerizing butadiene in the presence of an alkali metal or organo alkali metal catalyst and at predetermined times during the polymerization adding to the active polymerization system at least one polar compound. In the examples, block polymers of butadiene are prepared by reaction in hexane using as a catalyst, lithium butyl, or a lithium or a sodium dispersion, the polar compound added being ethylene glycol dimethyl ether, tetrahydrofuran, tetramethyl ethylene diamine or diethylene glycol dimethyl ether. The product mixture is treated with an antioxidant and methanol, and the polymer vulcanized.
Patent GB-1233782-A (GB)
IPC: G03B15/00
Filed: 1968-09-11
Abstract: 1,233,782. Photographic optical arrangements. RICOH K.K. Sept.11, 1968 (Sept. 29, 1967], No.43155/68. Heading G2A. An optical arrangement used in a multiphotographic device comprises two crossed slots 13a, 14a, which between them define an aperture 28, and which can be moved relative to each other to vary the position of the aperture. As shown, a horizontal slot 14a is formed in a plate 14, and a vertical slot 13a in a plate 13. By moving plate 14 vertically and plate 13 horizontally, the square aperture 28 formed by the two crossed slots can be made to assume different positions, and, if required, to move step by step through a predetermined sequence of such positions. In Fig.4  an additional plate 43 having apertures corresponding to the various positions which the crossed-slot aperture 53 may take up (shown for example as 49 apertures arranged in a square 7 x 7 formation) is used, which improves the accuracy of the step- and-repeat movement. The arrangement is used in the multiphotographic device of Fig. 1, in which the optical masking device is used with a lens 1 to provide images on a photo-sensitive sheet 4 on the rear face of a lens 2. The front face of lens 2 is formed as a plurality of micro-lens elements arrayed in rows and columns. The image produced by lens 1 is split up into discrete portions each of which can be focused by one of the microlens elements on to sheet 4, according to the position of the crossed-slots aperture (e.g. 3, 3a, etc). In Fig.3A (not shown) the horizontal slots are formed in a movable web.
Patent GB-1252540-A (GB)
IPC: A61K31/195
Filed: 1970-06-15
Abstract: 1,252,540. 4-Aminomethyl bicyclo[2.2.2.]octane-1-acetic acid and derivatives. MERCK & CO. Inc. 15 June, 1970 [17 June, 1969], No. 28938/70. Heading C2C. Novel compounds of formula and salts, esters and amides thereof are prepared by hydrolysis of the N-acyl acid which may be obtained by rearrangement of a diazoketone e.g. 4 - benzamidomethylbicyclo[2.2.2.] - octyl - diazomethyl ketone obtained by reaction of diazomethane with the acid chloride obtained by action of SOCl 2  on the 4 - benzamidomethylbicyclo[2.2.2] - octane - 1 - carboxylic acid obtained by action of benzoylchloride on the 4- aminomethyl acid obtained by reduction of 4- cyanobioyclo-[2,2.2] - octane - 1 - carboxylic acid. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having antifibrinolytic activity comprise an above novel compound and a carrier therefor. A method of treating haemorrhagic conditions in animals with the above compounds and compositions is also claimed.
Patent GB-1258049-A (GB)
IPC: E04C3/08
Filed: 1968-02-07
Abstract: 1,258,049. Lattice girder. GUYREX EQUIPMENT Ltd., G. RICHARDS and R. C. WARD. 3 Feb., 1969 [7 Feb., 1968], No. 6140/68. Heading E1K. A structural member, e.g. for supporting shuttering on which floors are to be laid or for shoring posts is formed by two parallel chords 10 and 11 spaced by struts 14, each chord comprising two parallel tubes 12 spaced apart by a distance less than the width of either tube. The tubes may be square in crosssection. Plates 15, 16 may be used to space the chords, plate 15 being an end plate with holes 18 which enables the member to be connected to an adjacent member. The struts may be channel section.
Patent GB-1258203-A (GB)
IPC: H01C10/10
Filed: 1970-05-07
Abstract: 1,258,203. Resistance motor controllers. MEFINA S.A. 7 May, 1970 [14 May, 1969], No. 22031/70. Heading H1S. A variable foot control device for regulating the speed of an electric motor comprises a variable resistance 10 and its resistance selection slider 27, operated by a cover member 12 pivoting on an axle 14 movable against the action of a spring 20. Angular movement of cover 12 moves through pin 28 a pivoted lever 25 which carries slider 27 of the variable resistance. An intermediate support plate 9 bears an electrical printed circuit for connecting between the electric supply cable 11, the motor to be controlled and the variable resistance. Flexible stops may be arranged on the sides of an abutment (31) (Fig. 3, not shown) to limit the travel of the cover. An elastic washer 37 is provided on said pivot to facilitate rotation of said cover on said casing. A plate 23 of non-skid material such as rubber or plastics material covers the bottom of the casing. The casing and actuating member are made of metal or plastics material and the lever 25 is formed of an insulating synthetic moulding material.
Patent GB-1288718-A (GB)
IPC: C09B31/043
Filed: 1971-04-19
Abstract: 1288718 Azo dyes CIBA-GEIGY AG 19 April 1971 [5 Feb 1970] 21144/71 Heading C4P [Also in Division C2] The invention comprises azo compounds, free of acid water-solubilizing groups, of formula wherein D is the radical of a diazo component; A is an optionally substituted phenyl radical in which the azo bridge and the amino group are para to each other; and Ac is a radical of formula -CO-(CH 2 ) n -X-aryl bound through an amino group wherein n = 1, 2 or 3; X is -O-, -S- or an amino group; R 1  is an optionally substituted alkyl group and R 2  is an optionally substituted alkyl group when X is -S- or amino, and a substituted alkyl group when X is -O-. The dyes are produced by diazotization and coupling or, alternatively a monoazo compound of formula wherein Ac<SP>1</SP> denotes a chloroalkylcarbonyl amino group is condensed with a phenol, thiophenol or primary or secondary monoalkylated amine. In one embodiment, dyes containing a quaternizable nitrogen atom in the radical D are optionally subsequently quaternized. The dyes give red shades on semi-synthetic and fully synthetic fibres, particularly polyester fibres.
Patent GB-1289119-A (GB)
IPC: H05B41/04
Filed: 1969-10-10
Abstract: 1289119 Starting discharge lamps; circuit protection GENERAL ELECTRIC CO Ltd 12 Oct 1970 [10 Oct 1969] 48300/70 Divided out of 1289118 Heading H2H  The disclosure is identical to that of Specification (1,289,118), but the claims relate to features preventing the production of pulses in the secondary circuit of the transformer in the event of the failure of lamp ignition after a predetermined time.
Patent GB-1289129-A (GB)
IPC: G01T1/164
Filed: 1969-04-30
Abstract: 1289129 Local viewing NATIONAL RESEARCH DEVELOPMENT CORP 27 April 1970 [30 April 19691 22140/69 Heading H4F [Also in Division G1] In an apparatus for producing images, formed by radiation in a non-visual wavelength range, e.g. a gamma camera for medical use, the coordinates of the position of a movable marker 11 are fed as a pair of electrical signals to a display system, which displays the image, to provide a reference mark. As shown, Fig. 1, the signals are voltages developed by a linear 14 and a rotary 15 potentiometer, the marker 11 being mounted for radical and rotary movement relative to a fixed member 12. Voltages proportional to tpe X-Y co-ordinates are then obtained, Fig. 2 (not shown), and applied to an oscilloscope. Alternatively, two linear potentiometers at right angles may be used. Circuiting is provided whereby movement of the marker produces a trace on the oscilloscope or a cross when the marker is stationary.
Patent GB-1297649-A (GB)
IPC: D01G99/00
Filed: 1969-12-01
Abstract: 1297649 Condensing combed sliver OSAKA KIKO KK and CHUWA WOOL INDUSTRY Co Ltd 1 Dec 1969 [13 Dec 1968 26 Dec 1968] 58534/69 Headings D1F and DIN A combed web 18 is condensed to a uniform sliver by turning the web through an angle which becomes progressively more acute from one side of the web to the other so that the leading ends of the fibres in the combed tufts are relatively displaced and uniformly distributed in the sliver, the leading end of a leading fibre in a tuft being displaced by a distance which equals the difference between the lengths of the edges of the web between delivery rollers 21 and the nip of the condenser 23, 24. The rollers 15 may rotate alternately in opposite directions and feed the combed web onto a conveyor belt.
Patent GB-1308913-A (GB)
Title: Control systems for rocket motors
IPC: F02K9/90
Filed: 1969-08-12
Abstract: 1308913 Spoiler blades for rocket motors IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 13 July 1970 [12 Aug 1969 24 Nov 1969] 40313/69 and 57395/69 Heading B7G A spoiler blade 12 for the thrust vector control system of a rocket motor comprises an exhaust gas impingement element 13 formed of refractory metallic material, for example molybdenum, tungsten or silver impregnated tungsten, a heat insulating layer 15 and a rigid metallic support member 14 which may be of steel. The blade has a curved exhaust-entrant edge 17 which has the same radius of curvature as the nozzle aperture 11 of the exhaust nozzle 10 on which it is mounted. The impingement element 13 and insulating layer 15 have interengaging portions 20, 29 of which the portion 29 is bored at 30 to receive a spindle 26 on support member 14 by which the blade is mounted on  nozzle 10, actuating means (not shown) being provided to rotate the blade through the spindle to the desired position. The parts 13, 14, 15 of the blade are held together by screws of the same material as the impingement element 13 and by a resin. Four such blades are arranged around the circumference of the rocket motor exhaust nozzle 10. An exhaust nozzle assembly with one spoiler blade is also envisaged.
Patent GB-1310500-A (GB)
Title: Bidirectional amplifier arrangements
IPC: H04B1/58
Filed: 1969-04-02
Abstract: 1310500 Bidirectional amplifiers; two-way repeaters PLESSEY CO Ltd 30 June 1970 [2 April 1969] 17150/69 Headings H3T and H4R In a bi-directional amplifier arrangement comprising two amplifier units A1, A2, Fig. 4, each arranged to produce first C and second E opposite sign outputs, the inputs and outputs of the amplifier units are interconnected by transformerless means such that when an input signal (+AI i ) is applied to one of the amplifier units A2 the first output C(+AI 0 ) of that amplifier unit A2 splits into two components, +#I 0  one of which ( -) is applied to the input B1 2 of the other amplifier unit A1 to balance thereat -#I 0  the second output E ( - --) of the amplifier A2 2 +#I 0  and the other component of which ( ---) 2 constitutes the final output signal of the arrangement. Each amplifier A1, A2 may be in the form of an integrated circuit including the transistor amplifier of Fig. 2. An input of + #I i  to transistor 12 produces outputs of -#I 0  -#I 0  +#I 0 , -- and -- at the collectors of 2 2 transistors 12, 14 and 16 corresponding to outputs C, D and E in Fig. 4. The matched transistors 20 and 24 are continuously conducting and act as diodes to protect the transistors 12, 14, 16 and they may be replaced by diodes. The transistors 12, 14 and 16 are also matched and the characteristic impedances 38, 44 of transmission lines 36, 42 are matched to the input impedances of amplifiers A1, A2 for example for GPO lines the impedances 30, 32, 38, and can be 600 ohms. A signal + #I i  to the input B2 of amplifier A2 produces an amplified output +#I 0 , half of which passes to the output line 36 and the other half of which passes via impedance 32 to the input B1 of amplifier A1 to be cancelled by - #I 0 /2 output from amplifier A2. The interconnection between the amplifiers A1, A2 ensures that the loop gain is zero. Voltage feedback may be used as an alternative to the current feedback used above. The amplifier may be used as a wide band repeater for video transmission.
Patent GB-1313746-A (GB)
Title: Self-propelled golf trolley
IPC: B62B5/00
Filed: 1969-08-22
Abstract: 1313746 Golf trolleys E APPLEBY 14 Aug 1970 [22 Aug 1969] 42019/69 Headings B7B and B7H Motor driven rollers 12 which drivingly engage the wheels 4 of a golf trolley are pivotally mounted, along with electrical motors 11, on limbs 1 of a frame member so as to be movable into and out of engagement with the wheels. Each motor is carried by a plate 9 pivoted at 10 to a limb 1, the plates 9 being interconnected by a cross member 13. The rollers are lifted out of engagement with the wheels by a spring 16, and are urged in the opposite direction by a Bowden cable on depressing hand lever 17. The cable core is attached between lever 17 and frame member 2a, and the sleeve between the lever mounting 19 and cross member 13. A switch 22 actuates the motors when plates 9 are pivoted to the drive position. A battery carrier 24 is pivotally mounted on the limbs 1, and the handle portion 6a of the trolley is detachable from the wheeled portion. The trolley may be hand propelled whilst the motor is disconnected.