baber/WOPTO huggingface dataset:
Patent GB-863535-A (GB)
Title: Micromanometer particularly adapated for use with a cardiac catheter
IPC: A61B5/0215
Filed: 1959-07-23
Abstract: 863,535. Measuring electrically. ALLARD, E. M. L., and LAURENS, P. G. L. July 23, 1959 [Aug. 7, 1958; Feb. 25, 1959], No. 25299/59. Class 40 (1). [Also in Groups VI and XXXIX] In a manometer intended particularly for cardiac catheterization diaphragms 18a and 18b support in the centre of a coil 16, a core 30 composed of two parts, one 17a of material having high magnetic permeability, and the other, 17b, of material having low permeability. 'The part 17b has a temperature coefficient of expansion at least 4 times as great as that of 17a so that movement of core 30 due to thermal expansion will compensate the increase in inductance of coil 16 due to temperature increase. Further methods of temperature compensation include making diaphragm 18a larger than 18b so that thermal expansion of air trapped between them will act differentially on the two diaphragms, or, making passage 25 larger than required for leads 2 and blocking it some distance from the head, e.g. at 27, to form a chamber in which air is trapped which, on rise in temperature, applies a compensating pressure to diaphragm 18b. Ring 28 may be of metal and may be used as an ultra-cavity electrode in electro-cardiography. In an alternative form, Fig. 5 (not shown), for use in determining blood velocity the cap 20 has holes provided at the rear of the core and its diaphragms in which case these holes admit static pressure to diaphragm 18b while hole 22 admits dynamic pressure to diaphragm 18a. Deflection of core 30 therefore being a function of the speed of blood flow. Measuring circuit, Fig. 1 (not shown). The output of an oscillator whose frequency determining circuit includes the coil 16, is limited and passed to a frequency discriminator the signal may then be passed to an optional integrator, an impedance transformer and high and lowpass filters in parallel. The output of the highpass filter, cut-off 30 c.p.s., is connected to apparatus to indicate or record intra-cardiac sound whilst the low-pass filter connects to apparatus for indicating or recording intracardiac pressure. The integrator circuit referred to above is included in circuit if it is desired to average the pressure rather than record -instantaneous values.
Patent GB-151262-A (GB)
Title: Improvements in oil-cups
IPC: F16N21/06
Filed: 1920-09-02
Abstract: 151,262. Newton, C. H. Sept. 18, 1919, [Convention date]. Gravity. - feed lubricators; oil-hole closures.-A swinging lid 11 of an oil-cup 1 is screwed on a pintle 6 carried in bearings 4, 5 inside the cup. A spring 7 surrounds the pintle between the bearing 5 and a washer 8 with pin 9. The lid 11 is provided with a flange 13 fitting inside the cup when the lid is closed. When the lid is swung back by raising and turning a knob 12 screwed to the pintle, the edge of the cup scrapes oil from the lid and returns it to the cup.
Patent GB-601330-A (GB)
Title: Improvements in or relating to the manufacture of non-felting wools
IPC: D06M13/438
Filed: 1945-10-01
Abstract: Wool is rendered resistant to felting by initially depositing upon the wool fibres a very thin film of a water-insoluble organic compound containing potentially-active halogen, and then inducing the slow acidic decomposition of such film in situ at ordinary temperature.  The organic compound may be a N-dihalogeno-derivative of an arylsulphonamide, e.g. N-dichloro-benzenesulphonamide or N-dichloro-toluene-p-sulphonamide, or a corresponding N-dibromo compound.  The film is preferably deposited on the wool from a solution in a non-polar solvent of the halogen-containing organic compound.  If desired, substances imparting repellency towards insects and other organisms, or substances increasing the softness of handle, may be incorporated in the solvent used to dissolve the halogenating compound, or in the acid bath which is used subsequently.  If desired, the formation and subsequent gradual decomposition of films of the halogen containing organic compound may be induced by bringing the solution into contact with air-dry wool or wool goods which already contain acid e.g. carbonized woollen cloths or wool goods which have been impregnated with sulphuric, hydrochloric, or phosphoric acid, or boiled in a dilute acid bath, and dried without washing.  The N-dihalogeno arylsulphonamides may be dissolved in a non-polar solvent such as ethylene chloride, methylene chloride, carbon tetrachloride, a chlorinated paraffin, or an aromatic hydrocarbon or halogen derivative thereof.  The solvent may be diluted with a non-polar liquid, e.g. a petroleum liquid free from unsaturated hydrocarbons.  The solution may contain 0.5 to 4 per cent of the halogen-containing organic compound.  After impregnating the air-dry wool goods, excess liquid is removed and the goods are dried in warm air or vacuum.  They are then placed in a cold 1-4 per cent solution of acid to decompose the halogen-containing compound. Chlorinated wool thus obtained is resistant to felting, is soft, has a good colour, and has good level dyeing properties. Insect-repelling substances such as aryl or naphthyl compounds containing a high proportion of substituted chlorine or fluorine in the nucleus, or softening agents such as saturated fatty alcohols may be incorporated in the solutions.  In an example, wool cloth is drawn through a solution of N-dichlorobenzene-sulphonamide in sym-dichloroethane.  On emerging, the cloth is squeezed and then dried in a current of warm air.  It is piled continuously in open width in a tank containing 1-3 per cent hydrochloric acid solution and left for several hours.  Wool goods containing cellulosic fibres may be treated.  Articles such as all-wool hose may be subjected to the treatment.  In another example, all-wool flannel is drawn through a solution of N-dichloro-p-toluene-sulphonamide and 1 - trichloro - 2 : 2 - bis - (p-chlorophenyl)-ethane.  The material is dried and then placed in dilute acid.  The flannel is rendered resistant to felting and at the same time repellent to insects. Specification 537,671 is referred to.
Patent GB-532599-A (GB)
Title: Improvements in or relating to safety valves
IPC: F16K17/08
Filed: 1939-09-11
Abstract: 532,599. Safety-valves. COCKBURNS, Ltd., RODGER, J., and GRANT, T. Sept. 11, 1939, No. 25524. [Class 135] A safety valve has a valve member 10 of pot form fitted with a loose lid 15 and with a ported loose cylindrical sleeve 17 closely surrounding the valve pot. An annular access 18 is provided between the valve element and the sleeve which first receives pressure fluid released by the valve element whereby a " high-lift " is imparted to the valve member. Pressure fluid also passes from the recess 18 through a port 19 to the interior of the pot and lifts the lid 15 to bring a sealing surface 15<SP>4</SP> thereon into engagement with a corresponding surface 16<SP>1</SP> on a sleeve 16. This sleeve is internally slotted to provide a substantially frictionless bearing for the valve spindle 13 which is loaded by an external spring 11. The lower part of the sleeve 17 surrounds a rib 21 on the valve seat member which has a seating surface 14<SP>2</SP> surrounded by a recess 20.
Patent GB-278883-A (GB)
Title: Improvements in and relating to electric urns and like liquid heaters or boilers
IPC: F24H1/20
Filed: 1926-10-13
Abstract: 278,883. McQuinn, T. H., and Sargood, H. M. Oct. 13, 1926. Heating by electricity.-An urn, boiler, or the like has a circulating heating element mounted therein comprising an open-ended tube 13 of small diameter wound with a resistance 16 and enclosed in a casing 11 of much larger diameter, the casing being provided with end closures one of which is flexible to allow for differences in the expansion of the tube and casing. The flexible closures 17 comprises a thin copper cap screwed, brazed or soldered to the casing and fastened to the tube by a nut 18. The closure 19 serves to mount the element on a detachable plate 22 and carries insulating tubes 32 containing the leads 31 to the resistance. The boiler may be surrounded by lagging and interconnected with a water tank and a hot-water service, a draw-off tap being fitted to the boiler. In Fig. 1 the insulation is formed by an outer container to which the outlet pipe 3 is connected. A partition 74 having an orifice 79 forms a boiling- water chamber fitted with a draw-off tap 60<a>. A thermostat may be fitted.
Patent GB-1430297-A (GB)
Title: Keyboard entry system with n-key rollover and n-key lockout protection
IPC: H03M11/20
Filed: 1973-05-30
Abstract: 1430297 Keyboards with coded outputs MOS TECHNOLOGY Inc 30 May 1973 [31 May 1972] 25692/73 Heading G4H A keyboard encoder wherein a matrix 12 is scanned in successive cycles by logic 20 incorporates rollover and lockout logic 21, 22 which respectively detect the first actuation of a key regardless of the number of other keys which have been previously and are still held depressed, and validate the data representing a depressed key only if two or more keys have not been depressed within the same or a predetermined number of consecutive scan cycles. Matrix 12 comprises character keys 14 and eight additional shift or control keys 16, depression of a key (e.g. a reed switch) connecting a pair of row, column conductors. This connection is detected by logic 20 which sends a signal 20e to logic 21 and signals 20a, 20b to a memory 24. The key-identifying signal forming the output of 24 is passed through a buffer 26 by a signal 21a from logic 21. The signal is stored in a further buffer 28 by a signal 22a from logic 22 which is also delayed at 29 before it operates a strobe circuit 30. The signals 20e obtained during each scan cycle (a 1 (0) signal indicating a (non-)depressed key) are shifted into a register 34 in logic 21 and are compared bit-by-bit with the result of the succeeding scan, whose signals are shifted into 34 and also applied directly to a circuit 36 which provides signal 21a only if a 0 in 34 is followed by a 1 in the next scan. Signals 21a are then fed into logic 22 which, as described with reference to Fig. 3 (not shown), contains flip-flops (40, 42) for detecting the depression of two or more keys within a single scan cycle and a 3-bit shift register (44) for detecting the depression of two or more keys in two consecutive scan cycles. An error signal is produced if (40, 42) are both set in the same cycle, and a DATA VALID signal is produced only when the contents of (44) are 010.
Patent GB-387281-A (GB)
Title: Safety razor blade sharpener
IPC: B24D15/08
Filed: 1932-09-16
Abstract: 387,281. Sharpening razors. GELL, J., 123, Upper Tollington Park, London. Sept. 16, 1932, No. 25817. [Class 60.] In a machine for sharpening safety razor blades, the blade d is held in a holder c freely mounted o n a driving shaft a. On rotation of the shaft a a cam e oscillates the holder c against the urge of a spring h, and gearing r rotates a grinding wheel against which the blade contacts.
Patent GB-781850-A (GB)
Title: Improvements in or relating to aircraft undercarriages
Inventor: DIGBY FREDERICK JOHN WILLIAM W
IPC: B64C25/14
Filed: 1954-09-06
Abstract: 781,850. Landing gear. WESTLAND AIRCRAFT, Ltd. Dec. 6, 1955 [Sept. 6, 1954], No. 25819/54. Drawings to Specification. Class 4. The legs of a retractable under carriage may be moved into and locked in three positions : (i) fully retracted ; (ii) extended normally for landing, and (iii) tilted forwards to bring the point of contact with the ground ahead of the centre of gravity of the aircraft so that the craft sits on its tail whereby the craft (a) may be stacked in a small space, and (b) is in a suitable attitude for launching by catapult. The legs may be fitted with wheels or skids.
Patent GB-1116263-A (GB)
Title: Frequency discriminator
IPC: H03D3/00
Filed: 1965-06-18
Abstract: 1,116,263. Frequency discriminators. GENERAL PRECISION Inc. 18 June, 1965 [24 June, 1964], No. 25900/65. Heading H3A. In a frequency discriminator first and second frequencies are combined to provide a third frequency that is applied to circuitry which controls the amplitude of a fourth frequency generated by a reference oscillator. In Fig. 2 the input frequency 20 is combined with signals from a local oscillator 24 in mixer and demodulator stages 22 and 28, and the difference frequency is amplitude limited in unit 26 and applied through a capacitor 30 to a rectifier and filter 32. Capacitor 30 is chosen so that its impedance changes greatly in the frequency range of interest, and consequently the potential on the anode of diode 34 varies in accordance with the beat frequency. The cathode of diode 36 is held at a reference voltage 38, and the junction of the two diodes is connected to a reference oscillator 40; consequently an A.C. signal is developed at the junction which is proportional to the voltage difference between the reference voltage and the voltage applied to diode 34, and this signal is amplified and rectified to provide a frequency control voltage for the local oscillator. The discriminator produces an output indicative of the sense of a frequency deviation even when the input frequency is outside its normal range, and it is suitable for use in an inductive loop vehicle detecting system.
Patent GB-1436978-A (GB)
Title: Choline derivatives and pharmaceutical compositions containing the same
IPC: C07C309/28
Filed: 1974-06-11
Abstract: 1436978 Choline derivatives TOYAMA CHEMICAL CO Ltd 11 June 1974 [12 June 1973 20 June 1973] 25939/74 Heading C2C Novel compounds of Formula II wherein R 1  and R 2  are C 1-5  alkyl, R 3  is an aryl mono- or disulphonic acid moiety or a camphor sulphonic acid moiety, and n is 1 or 2 are prepared by reacting a compound of formula with a reactive derivative of the acid of formula Pharmaceutical compositions in conventional forms for oral administration having a stimulating action in the digestive tract comprise an above novel salt and a carrier or diluent.
Patent GB-656072-A (GB)
Title: Improvements relating to agricultural appliances
IPC: A01D87/02
Filed: 1948-10-05
Abstract: 656,072. Endless conveyers. WALLEY & CO., Ltd., E. S., WALLEY, E. S., and WALLEY, F. G. Oct. 5, 1948, No. 25978. [Class 78 (i)] [Also in Group I] An endless conveyer is mounted on the carriage a of a hay-loader and is adapted to be driven from the front wheels b of the carriage which is towed by a lorry. The conveyer comprises U-shaped members e with corrugated sides extending transversely over sprocket chains f. The drive from the wheels to the driving sprockets h is through chains k and gears m, so arranged that a short stretch n of the conveyer moves almost parallel to the ground in the direction of travel. The grass cuttings are gathered by the U-shaped members e and carried upwards between the conveyer and a plate o and discharged through an opening r on to the lorry. Side members p and a hood q close the upper stretch of the conveyer. In a modified construction a spiked elevating conveyer is used. An auxiliary conveyer with transverse U-shaped members is carried by a pivoted framework yielding to unevenness of the ground. Screw-tensioning means are provided in the framework. This auxiliary conveyer feeds the grass cuttings to the spikes of the elevating conveyer, both conveyers being driven from the wheels.
Patent GB-297002-A (GB)
Title: Manufacture of vat-dyestuffs and an intermediate product
IPC: C09B3/06
Filed: 1928-09-10
Abstract: 297,002. Soc. of Chemical Industry in Basle. Sept. 9, 1927, [Convention date]. Benzanthrone derivatives. - Benzanthrone is sulphonated by means of oleum at ordinary temperature, and the sulphonic acid obtained fused with caustic potash at a temperature between 255 and 310‹ C. to give a vat dye, which may be alkylated; the alkylated products dye fast greyblue shades. In examples, benzanthrone is sulphonated with 12 per cent oleum, and the sulphonic acid alkali fused with caustic potash at 270 to 300‹ C. to yield a grey vat dye. Methylation of this product by means of methyl-p-toluene sulphonate in nitrobenzene gives a grey-blue vat dye. Specifications 16538/04, 276,766, and 276,768 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also the production of a violet-blue vat dye by fusing the sulphonation product with alcoholic potash. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1429189-A (GB)
Title: Battery plate grids for electric storage batteries
IPC: H01M4/72
Filed: 1972-06-03
Abstract: 1429189 Battery plate grid JOSEPH LUCAS (BATTERIES) Ltd 4 June 1973 [3 June 1972] 26039/72 Heading H1B A battery plate grid for a lead-acid battery comprises an open generally rectangular synthetic resin material framework 15, Fig. 1, which supports a frame 11 of electrically conductive material in the form of at least two connected or integral strips extending at right angles to one another from one corner of the framework 15 along respective sides thereof, a lattice structure for supporting the active material which is defined within the framework 15 and which is formed at least in part by strands 12, 13 of conductive material electrically connected to the strips, the strands and the strips each having a thickness of less than 0À015 inch, and a terminal lug 14 connected to the strips which extends from the framework 15. The frame 11 including the strands 12, 13 may be of generally rectangular form and formed by blanking a single strip of lead, lead alloy or dispersion strengthened lead. The synthetic resin framework 15, e.g. of polypropylene, high density polythene or A.B.S., may be 0À07 inch thick and injection moulded around the frame 11 such that part of each conductive strip projects within the framework to engage, in use, the active material received within the interstices of the lattice structure. The lattice structure may also be defined by a number of ribs 16 integrally moulded with the framework 15. In a second embodiment shown in Fig. 2, the conductive frame comprises only two strips 21, 22 with a number of strands 28 radiating from the intersection of the strips 21, 22, the free ends of the strands 28 being embedded in and supported by the synthetic resin framework 23.
Patent GB-457065-A (GB)
Title: Improvements in or relating to hand-wheels
IPC: B62D1/08
Filed: 1935-09-20
Abstract: 457,065. Making wheels. BIRNIE, D. F., 112, Walsall Road, Lichfield, Staffordshire. Sept. 20, 1935, No. 26066. [Classes 83 (i) and 83 (ii)] [See also Group XXIV] A sheet-metal blank of the form shown in Fig. 2, is pressed into the form indicated as regards the outer ends of the spokes by Fig. 3, the channels being afterwards pressed into closed shape and the tags 10 being bent over so that the wings 15 close the gaps 14 at the ends of the spokes. The hub 16 is cast, Fig. 1, round the ends of the spokes, which are closed by metal cups 17.
Patent GB-244236-A (GB)
Title: A steel-framed dwelling-house or the like
IPC: E04B1/00
Filed: 1924-11-01
Abstract: 244,236. Gallie, W. S., Watt, H., McCubbin, T., Ferguson, J., and Glasgow Steel Roofing Co., Ltd, Nov. 1, 1924. Walls.-A steel framework, consisting of steel sill members 1, corner and intermediate, posts 4, 5, and frame members 7 extending between the corner posts 4, as shown in Fig. 1, is clothed externally by slabs, which are grooved vertically, as at 19, Fig. 6, to engage, the intermediate posts 5, and are locked to the corner posts 4 by lateral steel keys 16. Fig. 5. extending across the posts and engaging grooves 17 on the inner faces of the slabs. The sill member 1 is secured to a continuous concrete or like foundation, comprising a foundation proper and a sill member 3 thereon. The slabs are interlocked by steel bars engaging in grooves 15 and the bars extend across the upper ends of the vertical joints. Door or window frames are of angle-section and form posts engaging the grooved slabs. The completed structure may be lined internally with fibre or pulp board, or slabbing may be attached to the inner surfaces of the steel framing.
Patent GB-518890-A (GB)
Title: Improvements relating to the remote control of radio receivers
IPC: H03J5/24
Filed: 1938-09-07
Abstract: 518,890. Electric control systems. COLE, Ltd., E. K., and HERCZEG, A. Sept. 7, 1938, No. 26108.' [Class 40 (i)] A radio receiver is associated with a switch which is normally continuously operated to connect up in sequence a number: of tuned circuits, the switch being arrested on a tuned circuit when a signal of corresponding frequency is transmitted from a distant control point over the supply mains The switch selectively operates a tuner of the press-button motor-controlled type and switches on the receiver. The control transmitter, Fig. 1, comprises a valve oscillator V1 the frequency of which is determined by coupled coils and tuner circuits L1, LC1 ... L9, LC9 selectively connected to the anode and grid circuits by switch X which also at X1 completes the energizing circuits of the valve. The receiver R, Fig. 2, is associated with an anode bend detector V2 having tuned circuits LCl ... LC9 in its input circuit corresponding to those at the control transmitter and connected up in succession by a switch S1 operated by a motor P which is normally running continuously. Other banks S2, S3 of the switch complete the filament circuit of valve V2 and circuits in parallel with the ordinary push buttons for controlling a motor driving the tuning device. When switch S1 arrives at the tuned circuit corresponding to the circuit selected at the transmitter, anode current operates R1 which stops the motor and switches on the receiver R and at the same time S3 starts the receiver pushbutton tuning arrangements.
Patent GB-832935-A (GB)
Title: Improvements in or relating to centrifuges
IPC: B02C7/08
Filed: 1957-08-19
Abstract: 832,935. Disc mills. MACFARLANE, G. C., and THIRSK, K. B. Nov. 19, 1958 [Aug. 19, 1957], No. 26173/57. Class 59 A disc-type pulverizing mill comprises contra-rotating rotors 4, 5 having continuous annular extensions 11 which are interleaved to form a tortuous channel 2 for the material to be pulverized as it is passed from a central inlet 1 to a peripheral outlet 3. The oppositely-rotating concentric rotor shafts 6, 8 may be belt or gear driven. The extensions 11 on the opposed rotor face are so shaped as to provide a number of pockets 12 in which larger particles will tend to accumulate but will also be subjected to impact forces of other material moving outwardly-the rotors may be adjusted axially to alter the width of the channel 2 and thereby to control the rate of movement of the material therethrough. The surfaces of the extensions 11, particularly the inwardly facing ones may be roughened, as by .knurling, or they may be formed with small annular grooves. Cooling air or gas may be caused to flow over the rotors by fitting fan blades 14 to either or both and the stream may be directed either towards the inlet 1 or the outlet 3. The Provisional Specification describes also a mill in which an annular channel is formed in the periphery of one of the rotors with a screwthread machined on the inner face of the outer wall of the channel so that solid matter collecting in the channel may be carried by the thread upward or downward until it reaches a discharge point and the liquid may be discharged through fine apertures in the channel wall, such outlets being inclined at an acute angle 'to the path of the material approaching the channel; the latter may take the form of an adjustable slot formed by making the outer wall in a number of sections pivotally mounted to vary the width of the slot or slots.