baber/WOPTO huggingface dataset:
Patent GB-411259-A (GB)
Title: Improvements in or relating to fire extinguishers
IPC: A62C13/00
Filed: 1933-03-23
Abstract: 411,259. Fire - extinguishers. HUTCHINSON, H., 11, Golden Square, London. March 23, 1933, No. 8753. [Class 47 (ii).] An extineteur of the kind in which the acid bottle is broken by a sliding weight when the extincteur is inverted comprises a cage for the acid bottle which is designed to prevent uncombined acid from reaching the nozzle, and a guide for the weight which prevents movement thereof until the extincteur is wholly inverted or nearly so. The cage comprises a tubular member 5 formed with holes 5<a> and slots 5<b>, and a'strainer member 6 fitting in the upper end of the tubular member and having a closed bottom with a recess 6<11> for the neck of the acid bottle 4. When the bottle is broken against lugs 6<a> on the member 6, the acid escapes into the outer vessel 1 through the holes 5<a>, and the mixed solutions are forced to the nozzle 3 through the slots 5b and the strainer perforations in member 6. The weight 9 is guided on a rod 8 and has a tapered bore 10 and a recess 10<1> having shoulders adapted to engage a collar 8<1> on the rod, except when the extincteur is wholly inverted. The nozzle 3 includes a short length of flexible tube 3<1>, and handles 11, 12 are provided on the extincteur.
Patent GB-933136-A (GB)
Title: A piston seal for hydraulic pit-props
IPC: F16J9/28
Filed: 1962-03-07
Abstract: 933,136. Piston packing. BWG BERGWERKUND WALZWERK-MASCHINENBAU G.m.b.H. March 7, 1962 [March 21, 1961], No. 8775/62. Class 122(1). The piston 11 of an hydraulic pit prop is sealed by a rubber &c. packing ring 12 backed by an anti-extension ring 13 of polyurethane.
Patent GB-1012076-A (GB)
Title: A device for purifying internal combustion engine exhaust gases
Inventor: SERGE KONSTATIN MIKHAILOVICH A
IPC: F01N13/14
Filed: 1964-03-02
Abstract: 1,012,076. Purifying exhaust gases. INSTITUTE GORNOVO DELA. March 2, 1964, No. 8778/64. Heading FIB. A catalytic exhaust treating device comprises means 14 for heating the exhaust gas before entering the catalyst chamber 1, in which chamber the gas is carried to swirl about the axis. The exhaust gas enters chamber 1 through a tangential entry 11 which produces swirling in the space 9 to remove solids, etc., before the gases pass through a layer 7 of light catalyst particles of 3-4 mm. size which move about loosely in the exhaust stream and a layer 8 of stationary, heavier catalyst particles of 15-20 mm. size. The exhaust gases are heated by hot gases from a combustion chamber 14 fed with air by a blower 16 and fuel by a pump 21, the fuel supply pipe 22 being arranged in the exhaust stream for preheating. At starting, the combustion chamber is operated alone until the catalyst layers are heated, after which the engine is started, the combustion chamber being automatically switched off when the exhaust gas temperature exceeds 600‹C.
Patent GB-250571-A (GB)
Title: A device for ventilating telephones and like apparatus
IPC: H04R1/12
Filed: 1926-03-31
Abstract: 250,571. Steyn, J. A. van. April 9, 1925, [Convention date]. Ear pieces and attachments; hygienic devices.-A ventilating cap for placing over telephone receivers comprises a base consisting of an indiarubber or like disc 1 with radial projections 4 so placed that they hold the disc away from the receiver and a flange 3 which fits over the receiver and has slits or other openings near the base. The flange consists of a band held at a distance from the disc by securing strips 2. The disc has one or more holes 5, 6.
Patent GB-214243-A (GB)
Title: Improvements in spinning and twining-machines with driven flyers
IPC: D01H7/24
Filed: 1924-04-07
Abstract: 214,243. Soc. A. Descamps. April 10. 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Spindle apparatus; spindle-driving apparatus; stop-apparatus, non-automatic; thread guides.- The flyer L in a spinning or twisting frame revolves on ball-bearings R<1>, R<2> about a hollow axis A secured to the bar T by a nut V. A wharl-brake F controlled by a handle f is pro. vided together with a guard B for the bearings R<1>, R<2>, while the wharl serves as a lubricating box. The dead spindles M for carrying the yarntubes are mounted on a bar N and each spindle is provided with a shoulder 0 by which means the contact of the tube with the spindle is reduced. The tube is provided with a flanged bot. tom I and is dragged by a weighted cord a, the engagement of the flange I under the cord a preventing the tube from shifting vertically. The yarn 1 is fed through, a guide G, and the upper part of the spindle M is arranged to enter the member A at the beginning of the winding.
Patent GB-652306-A (GB)
Title: Improvements in superheterodyne receiving circuits
IPC: H03D7/10
Filed: 1948-03-25
Abstract: 652,306. Superheterodyne circuits. PHILIPS ELECTRICAL, Ltd. March 25, 1948, No. 8823. Convention date, March 29, 1947. [Class 40 (v)] In a superhet receiver the high-frequency and intermediate frequency voltages are amplified in a single valve having two control grids to which the two voltages are respectively applied, the two output voltages being derived from the anode circuit. The incoming signal is applied to the first control grid 4 of valve 7 and the resulting output is fed through capacitor 25 to a signal frequency tuned circuit 12, 13 in the grid circuit of a frequency-changer valve 10. This valve has an anode-tuned circuit 22, 23 backcoupled through coil 14 to the grid to produce the local oscillations and the resulting intermediate frequency output is applied through tuned transformer 18, 19 to the second control grid of valve 5. A tuned anode transformer 8, 9 passes the amplified intermediate frequency to the succeeding stages of the receiver. The local oscillator preferably operates at a sub-harmonic of the desired beat frequency to avoid howling.
Patent GB-1377325-A (GB)
Title: Process for preparing unsaturated aldehydes having three or four carbon atoms
IPC: B01J23/89
Filed: 1973-02-22
Abstract: 1377325 Oxidation catalyst ASAHI GLASS CO Ltd 22 Feb 1973 [22 Feb 1972 11 April 1972 17 April 1972] 8846/73 Heading B1E [Also in Divisions C2]  Numerous oxidic catalysts comprising Mo, Ni, at least one of Te, Ta, Bi, Co, W. In and Ti, and, optionally, one or more of alkali metals, Cu, Ag, Ca, Mg, Cd, Pb, As, Sb, V, Cr, Fe, Ni, La, Ce, Sn, P, B and Si, are prepared by concentrating a solution or suspension containing the catalyst components or precursors of the catalyst components which can be converted to the catalyst components by heating in air, drying the resulting concentrate, calcining the dried product at a temperature of from 400 to 600C and grinding the product to a desired size.
Patent GB-1120385-A (GB)
Title: Improvements in or relating to processes for manufacturing gilled heat exchange tubes and machines for performing said processes
IPC: B21C37/26
Filed: 1966-03-01
Abstract: 1,120,385. Welding by pressure. BIRAGHI (S.A.) 1 March, 1966 [26 April, 1965], No. 8886/66. Heading B3R. A gilled heat exchange tube is made by winding a metal strip 2<SP>1</SP> edgewise on to a rotating tube 1, relative axial movement also occurring to provide a continuous helicoidal gill; a welding heat source, e.g. an electrode 3 or plasma arc torch using argon, is located in the plane of the approaching strip and in the inrunning nip of the strip and the tube surface to cause fusion and consequent welding together of the edge of the strip and the tube surface. Guide rollers 7 backed by pressure rollers 8 serve to guide and apply the strip under pressure to the tube surface and thereby effect the weld. The location of the welding electrode in the plane of the strip results in a weld extending uniformly across its edge face (Fig. 3, not shown). The outer edge of the strip may be scalloped (Fig. 5, not shown). The electrode may consist of a pointed tungsten rod which in use is shrouded by inert gas. In a machine (Fig. 7, not shown), for carrying out the process the tube end is held in a chuck while the electrode, the guide and pressure wheels and the strip supply reel are mounted on a longitudinally movable carriage. The tube is preferably supplied with current at both ends and a recording is taken of welding current, voltage and speed as parameters indicative of the weld quality.
Patent GB-593374-A (GB)
Title: Improvements in or relating to portable atomising or spraying apparatus
IPC: A62C11/00
Filed: 1945-04-11
Abstract: 593,374. Delivering measured quantities. LIPTON, B. April 11, 1945, No. 8965. [Class 106 (v)] [Also in Group XXIX] In a plunger type sprayer comprising a plunger 1, liquid container 4, delivery chamber 10 and nozzle 7 (see Group XXIX) predetermined amounts of liquid, from the container 4, are collected by a swingable arm 30 which leads to a bore 25 communicating with a port 20 in a delivery chamber 10. The port is controlled by a slide 12 which may be raised against a spring 18 by a lever 16. The arm 30 may be operated by an external lever or by tilting the container.
Patent GB-527497-A (GB)
Title: Improvements in and relating to electric discharge apparatus
IPC: H05B41/232
Filed: 1939-03-21
Abstract: 527,497. Supply systems for discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd. March 21, 1939, No. 8978. Convention date, March 22,1938. [Class 38 (iv)] [Also in Group XL] A discharge lamp 1 is supplied from an A.C. source through an inductance 7 and condenser 8 in series, a second inductance 9 being in shunt to the lamp. The inductance 9 may be in series with the electrodes to provide a heating circuit at starting ; it may form the primary of a transformer for heating the electrodes. Two lamps 1, 1<SP>1</SP> may be arranged in series with a single inductance and condenser in series in the supply circuit, but independent inductances 19. 19<SP>1</SP> in parallel with the lamps. The lamp may have a fluorescent coating. Reference has been directed by the Comptroller to Specifications 344,439 and 357,492.
Patent GB-288268-A (GB)
Title: Method of preserving rubber latex
IPC: C08K5/41
Filed: 1928-03-24
Abstract: 288,268. Naugatuck Chemical Co., (Assignees of McGavack, J., and Shive, R. A.). April 8, 1927, [Convention date]. Latex, treating.-Latex is stabilized in neutral or acid condition (pH = 7 to 4.5) by the aid of sulphonic alkyl aryl reaction products, e.g. the product obtained in presence of sulphuric or chlorsulphonic acid from cinnamic acid and butyl alcohol, or para-cresol and oleic acid, or anthracene, naphthalene &c. and propyl &c. alcohol. Twitchell compounds are included. In one example 1000 c.c. natural latex is treated with 3.5 grams of the cinnamic-acid-butyl-alcohol product and 10-15 c.c. 38 per cent formaldehyde added. In another example, 1000 c.c. of ammonia-preserved 38 per cent latex is treated with 5-10 grams of the para-cresol-oleic-acid product, the ammonia removed by air-blowing, and 40 c.c. 38 per cent formaldehyde added. In these examples the formaldehyde acts as the acidifying agent, but acetic, boric and other weak acids may be used, or salts which hydrolyze to an acid solution. The ammonia may be removed by neutralizing &c. instead of blowing. The product is stated to dry more rapidly than alkaline latex and to be more rubbery and more plastic on the mill.
Patent GB-1041384-A (GB)
Title: Urea-aldehyde condensate for use as a fertiliser
IPC: C05C9/02
Filed: 1963-03-06
Abstract: Condensation products of 1 to 2.5 moles of urea with 1 mole of n- and/or iso-butyraldehyde are useful as fertilizers.  They may be mixed with other plant nutrients, e.g. phosphates, potassium compounds and trace elements, and diluents, e.g. soil.  Reference has been directed by the Comptroller to Specification 949,408.ALSO:The invention comprises condensation products of 1 to 2.5 mols of urea with 1 mol of n-and/or iso-butyraldehyde.  When 2 mols of urea are used the products are alkylidene diureides.  Examples describe condensation products of 1 mol iso-butyraldehyde and 2 mols urea prepared either in solution or in the absence of solvent and of 1/2 mol iso-butyraldehyde, 1/2 mol n-butyraldehyde and 2 mols urea. Reference has been directed by the Comptroller to Specification 949,408.ALSO:Condensation products of more than 1 but not more than 2.5 moles of urea with 1 mole of n-butyraldehyde and/or isobutyraldehyde are useful as fertilizers.  Condensation may be effected by contacting a solution of the aldehyde with the urea while adding inorganic and/or organic acid or in the absence of solvents in a kneader, mixer or pug mill.  They may be mixed with other plant nutrients, e.g. phosphates, potassium compounds and trace elements. Reference has been directed by the Comptroller to Specification 949,408.
Patent GB-455554-A (GB)
Title: Improvements in the method of and the apparatus for treating massecuite
IPC: C13B30/06
Filed: 1935-03-22
Abstract: 455,554. Refining sugar. HADDAN, R., 31, Bedford Street, Strand, London.- (Western States Machine Co. ; Salt Lake City, Utah, U.S.A.) March 22, 1935, No. 9047. [Class 127] Successive portions of a batch of massecuite are subjected, immediately before passing to the centrifuges, to stirring by a hollow stirrer through which hot water is passed. A mixing trough 1, Fig. 1, is divided into upper and lower compartments. Massecuite is delivered from the crystallizers 32, into the upper compartment and then flows, regulated by valves 23, into the lower compartment. In this compartment is a rotating hollow stirrer 7, through which is passed hot water from supply tank 12 at such a temperature and speed that the massecuite is quickly heated to render it fluid enough for effective separation by the centrifugals 5. A modified mixing trough as in Fig. 4 contains a small trough with a hot-water jacket and a heating stirrer, the massecuite overflowing gate 27 into the lower part which also contains a heating stirrer and which may have a hot water jacket. The stirrers shown in Fig. 4, have the heating tubes parallel to the axis, while in Fig. 1 they are circumferential.
Patent GB-186083-A (GB)
Title: Improved method of and apparatus for the economic transformation of the energy of steam by turbines
IPC: F01K21/04
Filed: 1921-03-24
Abstract: 186,083. Tesla, N. March 24, 1921. Working-fluid supply.-Fuel and air are conducted to nozzles by pipes 28, 29, 12, and are burnt in chambers 14, 15. The products of combustion mix in pipes 3, 4 with steam supplied through valves 5, 6. The exhaust gases pass to a steamgenerator 39, and the steam produced is led by a pipe 45 either to the pipe 3 or to separate nozzles of the turbine 1. The invention primarily consists in the provision of a valve 46 by which the admission of steam from the generator 39 can be determined and regulated. A steam stopvalve 7 is provided and valves on a governor-controlled shaft 37 regulate simultaneously the admission of steam and fuel. Compressed air is supplied from an electrically driven reciprocating pump 9 to the pipe 12 and to the top of the fuel reservoir 20. Steam alone is used for starting the turbine. The installation is suitable for use with turbines as described in Specification 24001/10.
Patent GB-1424012-A (GB)
Title: Phase jitter compensator
IPC: H04L27/06
Filed: 1973-02-23
Abstract: 1424012 Phase jitter correction; frequency discriminators HONEYWELL INFORMATION SYSTEMS Inc 23 Feb 1973 [23 Feb 1972] 9107/73 Headings H4L and H3A To correct phase jitter corrupted data signals which have been transmitted by modulation of a carrier, a carrier phase angle correction is evaluated while the transmitted data signals are delayed by a time equal to the time delay in evaluating the correction, the correction thereafter being applied to the delayed transmitted signals. The data may be transmitted as a PAM, VSB signal, which is received and demodulated at 1004, 1005, using estimated quadrature reference carrier signals derived from a frequency locked loop (Figs. 5 and 7 see below) to provide signals representing any phase error between the received signal and estimated carrier. These are processed by filters, A/D converters and a computer 1017 to provide signals representing the sine and cosine values of the phase error. Meanwhile, the demodulated data signals are filtered and A/D converted and passed to delay lines 1014, 1015, where they are delayed by the time needed in the computer 1017 to produce the cosine and sine signals. The quadrature data signals are combined with the phase error sine and cosine signals in a further computer 1016 which carries out a matrix transformation (explained in the Specification) to provide in phase and quadrature, jitter corrected, data signals. In one embodiment, a carrier beacon signal is added to the transmitted VSB signal in order to aid recovery of the reference carrier signals from the received signal (see below). Frequency discrimination and tracking system (Fig. 7).-In order to recover a reference frequency corresponding to the centroid of incoming carrier energy, the incoming signal is quadrature demodulated at 701, 702 in relation to the output frequency 4f D  of a voltage controlled reference oscillator 726. The demodulator outputs are low pass filtered at 703, 704 and then passed to modulators 706-709. Here the in-phase and quadrature signals are both modulated in quadrature by a further reference frequency f r . Thereafter, following further low pass filtering, the sums and differences in the in-phase and quadrature channels are derived at 714-717 and then so combined at 718-719 as to provide signals corresponding to the amplitudes of the sum and difference frequencies f D +f r  and f D - f r  respectively. These are subtracted at 720 to provide an error signal which is passed through one or two stages of integration to control the oscillator 726. (One stage provides a constant frequency reference in the event of fade, two stages a steadily changing reference).
Patent GB-1377394-A (GB)
Title: Broadband frequency converters
IPC: H03D7/14
Filed: 1972-02-29
Abstract: 1377394 Radio receiving apparatus; transistor amplifying circuits; frequency changers TELENG Ltd 29 Feb 1972 [8 April 1971] 9154/71 Headings H3Q and H3T The invention comprises a broadband frequency converter unit for transposing a broadband of frequencies from the VHF to the UHF frequency range; the broadband of frequencies may be one of the bands or a series of bands used in television broadcasting. Socket SK1 comprises the input to the unit, being connected to the base of amplifier transistor VT1 by means of shunt coil T5 which by-passes medium wave radio broadcast transmissions, a coil L1 providing impedance matching, and D.C. blocking capacitor C3. Capacitor C4 and inductor L2 form a series resonant rejector circuit. Transistor VT1 is provided with series feedback, by means of emitter circuit resistor R4 and shunt negative feedback by means of resistor R3 and capacitor C6; it feeds a second amplifying transistor VT2 by means of auto-transformer T2. Transistor VT2 is also provided with series and shunt negative feedback and feeds via autotransformer T3, D.C. blocking capacitor C12 and impedance-matching inductor L2 and resistor R11, into a mixer stage. The mixer stage comprises diodes D2, D3, fed with local oscillations via transformer T4, and it feeds out via centre-tapped inductor L8 to output socket SK2: a coil L12 attenuates any interfering signals fed back into the unit from the T.V. receiver connected to the output. The local oscillator comprises transistor VT3, having tank coil L9 which resonates with capacitors C13, C14, C21: capacitor C16 provides the necessary positive feedback. The local oscillator feeds the mixer via coupling capacitor C22 and inductor L6. Power is supplied to the unit via transformer T1 and diode rectifier D1, capacitor C20 preventing modulation hum; the oscillator VT3 is fed via resistor R15 and diode D4.
Patent GB-1078952-A (GB)
Title: Servomechanism for converting a binary digital indication to the angular position of a shaft
IPC: G05D3/12
Filed: 1965-03-03
Abstract: 1,078,952. Electric selective signalling. COMPAGNIE GENERALE DE TELEGRAPHIE. SANS FIL. March 3, 1965 [March 3, 1964], No. 9174/65. Heading G4H. A servo mechanism comprises means for producing a first signal and a second signal S# phase-displaced by an angle # defined by a digital input to store 1 and a fourth signal phase-displaced from the first by 90 degrees which is applied with the first signal to the windings of a resolver 5, the rotor winding of which produces a signal E and the phase of which represents the angle of the output shaft, a comparator 8 comparing the second and third signals S# and Eα and applying an error signal e to control a motor 12 to drive the output shaft to the angle 0. Counter 2 receives pulses from clock 3, the output from the last stage being the input frequency divided by the maximum count of the counter. The clock 3 is synchronized with one phase of an oscillator 4 through phase comparator 6. Oscillator 4 produces the first and fourth signals applied to resolver 5. The stages of counter 2 are compared at 7 with corresponding stages of store 1 and the output S# has a phase representative of the value in store 1. In a modification there are two comparators 7 for fine and coarse signals, each having inputs from nine stages of store 1 and counter 2, the two sets of nine overlapping by three. Fine and coarse resolvers are provided connected by gearing having a ration of 2<SP>6</SP>. The two error signals, control the driving motor through a threshold switching circuit which uses the highest input signal. A quadrature motor winding on the coarse resolver applies a signal through a diode to the switching circuit to overcome the 180 degrees ambiguity of the. system. In another form a tachogenerator is provided to give a speed signal. This is fed back to the motor control circuit through a summer to improve the damping characteristics.
Patent GB-121581-A (GB)
Title: Improved Evaporator Coil and Fitting for same.
Inventor: MORTON JAMES COWAN
IPC: B01D1/02
Filed: 1918-06-04
Abstract: 121,581. Morton, J. C. Dec. 21, 1917, [Convention date]. Coil-tube apparatus. - A steam coil for a salt-water evaporator consists of an outer coiled tube 2, Fig. 1, closed at its upper end and having an inner tube 1 opening into the closed end of the outer tube. The outer tube is preferably of oval crosssection. A number of coils are connected to a steam supply and outlet fitting 9, Fig. 5, by means of junction pieces 17 which screw on to nipples 10 projecting radially from the fitting. The inlet and outlet passages 12, 15 in the fitting open respectively into the ends of the inner tubes of the coils and into passages 8 on plugs in the ends of the outer tubes. The coils are kept upright by supports loosely fitting between flanges 4, 5 on their upper ends.
Patent GB-1008815-A (GB)
Title: Culinary mix for producing chemically leavened baked goods
IPC: A21D2/26
Filed: 1963-03-08
Abstract: 1,008,815. Bread &c. without yeast. PROCTER & GAMBLE CO. March 8,1963 [March 9, 1962], 9398/63. Heading A2B. In preparing bakery goods such as bread, rolls, sweet rolls, coffee cakes and cinnamon rolls without yeast leavening, the culinary mix baked comprises flour which has not less than 18% protein content, shortening, 2.5-7.5%, of the total mix, of glucono-delta-lactone and an amount of carbon dioxide-producing chemical such as sodium bicarbonate in the ratio 1.5-0.5 of the glucono-delta-lactone or of the gluconodelta-lactone plus any fast-acting acid leavening agent such as monocalcium phosphate, monopotassium phospate and sodium acid sulphate, or potassium acid tartrate present.