baber/WOPTO huggingface dataset:
Patent GB-662227-A (GB)
Title: Improvements in or relating to electric suppression systems
IPC: H03C3/14
Filed: 1947-06-17
Abstract: 662,227. Sound reproducing circuits. ROBINSON, J. July 16, 1948 [June 17, 1947], No.2493/50. Divided out of 662,133. Class 40 (iv). [Also in Group XL (c)] When a carrier wave or a pulse train is modulated in frequency or phase by a modulating voltage, a multiplicity of side frequencies or side-bands are produced with frequency intervals equal to that of the modulating voltage. The amplitude of the pure carrier and of each side-band varies according to the modulating index. The curves 12, 13, 14 of Fig. 1 show the manner in which the pure carrier 12, and the first and second pair of side. bands 13, 14 vary in amplitude (ordinates) with change of modulation index (abscissae). The invention consists in applying a desired and an undesired signal jointly to the modulator, and in isolating a particular side-band (e.g. the first). By suitable choice of the operating conditions, the signal providing the lower modulating index is weakened relative to the other signal. If phase modulation is used, the weaker signal is further weakened. If frequency modulation is used, that signal is weakened which gives the lower ratio of carrier frequency deviation to modulating frequency. A preferred choice of conditions is that in which both modulating indices are less than 2, in which region the pure carrier 12 is falling and the first side-band 13 is rising. In the arrangement shown in Fig. 2, a carrier generated by the back-coupled oscillator 17, 18 is frequencymodulated by a reactance valve 19 to the grid of which the desired and undesired signals are applied. F.M. output is taken at 20 to an amplifier 21, from the anode circuit of which a filter 22 selects a particular side-band preferably the first. Both signals are present as components of this side-band, but the signal giving the lower modulation index is weakened relative to the other. The process may be repeated. If the signal giving the lower modulation index is the desired one, the undesired signal may be separated and fed back to balance out that signal in the mixed input, leaving only the desired signal. In a modification of the Fig. 2 circuit, the output signal 16 from the isolator 22 is fed back positively to the grid of the reactance valve 19, and a resistor shunted by a condenser is inserted in the cathode circuit, Fig. 5 (not shown). When the signals consist of the carrier and side-bands of an amplitudemodulated wave, the carrier being of greater strength than the side-bands tends to suppress them and to leave pure carrier. In gramophone reproduction, the low-intensity waves arising from needle scratch may be minimized by the above methods. As, however, there is a tendency to strengthen strong signals relatively to weak signals, the record should be prepared in such manner that large and small amplitudes are brought nearly to the same level.
Patent GB-568253-A (GB)
Title: A method of producing photographic pictures on plates or panels formed of compressed wood fibres
IPC: D21J1/08
Filed: 1944-02-11
Abstract: 568,253. Photographic processes. KOOPERATIVA FORBUNDET FORENING U.P.A. Feb. 11, 1944, No. 2579. Convention date, Dec. 21, 1942. [Class 98 (ii)] A fibrous plate of compressed wood fibre is impregnated with a colloid (e.g. glue, gelatin, or albumen) sensitized with a chromium salt (e.g. a bichromate), is exposed to light, the soluble colloid removed by washing with hot water, and the whole upper surface of the plate inked (e.g. with asphalt lac), the colour being only absorbed by those parts of the plate where the colloid has been removed. In a modification, the plate may be first impregnated with the colloid, and then treated with bichromate solution. The Specification as open to inspection under Sect. 91 refers also to the incorporation of a silver salt in the colloid and subsequent hardening development. This subject-matter does not appear in the Specification as accepted.
Patent GB-179992-A (GB)
Title: Improvements in or relating to the manufacture of ferro-chromium alloys
IPC: B60R7/04
Filed: 1921-01-19
Abstract: 179,992. Ballantine, W. B. Jan. 19, 1921. Alloys.-Iron-chromium alloys low in carbon and other oxidizable impurities are made by submitting alloys higher in such impurities to the action of an oxidizing blast while fused in an arc furnace. The blast may be directed on to the surface of the molten mass or may be introduced through an adjustable electrode; and it may also be used to carry fluxes to the material during the treatment.
Patent GB-1179174-A (GB)
Title: Excavator, Crane or Conveyor.
Inventor: BARGMANN ERWIN
IPC: B66C23/84
Filed: 1967-01-18
Abstract: 1,179,174. Bearings. KLOCKNER-WERKE A.G. 18 Jan., 1967, No. 2612/67. Heading F2A. [Also in Divisions B8 and E1] A rolling bearing in an excavator, crane or conveyer comprises two races 13, 15 which rotate with an upper carriage, one said race having a pivot edge on which the upper carriage may tilt, the pivot edge being nearer the bearing axis than the inner point of contact between the race and elements. In Fig. 2 there is axial play between race 13 and race 15 which is secured by web 17 to upper carriage 2, and an intermediate race 9 is secured to a lower carriage 3. When carriage 2 tilts downwards at the jib side A race 13 remains in contact with all the balls of the upper row to distribute the downward load. Sufficient balls of the lower row engage races 9, 15 to bear the small upward load. A pivot edge may be provided on a lower race (Fig. 3, not shown).
Patent GB-724787-A (GB)
Title: Improvements in or relating to means for use in attaching wrist cords to wrist watches
IPC: A44C5/16
Filed: 1953-01-30
Abstract: 724,787. Dowels; wire staples. WRONKER, J. C., and ULLMAN, F. E. Nov. 20, 1953 [Jan. 30, 1953], No. 2684/53. Class 89 (2). [Also in Group VII] Means for attaching together the two ends of a cut loop of a cord (see Group VII) which is passed through a loop at one side of a wrist watch comprises a pin-like metal member 1 pointed at each end for insertion longitudinally into the two opposed ends of the cut cord, and, intermediate the ends of the pin-like member, opposed claw-like elements 2, 3 arranged to be clamped over the said opposed ends of the cord to form a tight joint. The pin-like member 1 is preferably provided with spear-headed ends 1A and barbed or saw-toothed edges. In the example the member 1 is made of flat metal, and the elements 2, 3 are each provided with a slot 4 whereby they can be slid upon it into the space between a pair of cross-arms 5 which are integral with the member 1, so that by twisting the latter in opposite directions about its longitudinal axis the cross-arms are positioned transversely of the slots and prevent axial movement of the claw-like elements 2, 3. A slidable metal collar may be provided to cover the clamped claws and conceal the joint.
Patent GB-803293-A (GB)
Title: Improvements in and relating to the dyeing of threads, filaments, fibres and the like
Inventor: POOLE ROBERT ALFRED
IPC: D06P3/48
Filed: 1956-01-27
Abstract: Fibres of cellulose triacetate, polyethylene terephthalate and polymers and copolymers of acrylonitrile are dyed with dispersed acetate dyes in the presence of a cyclohexyl phenol as a carrier. Specified carriers are cyclohexyl phenol, methyl- and dimethyl-cyclohexyl phenol, p-menthyl phenol and p-bornyl phenol, and they may be added to the dyebath or to a pretreatment bath.
Patent GB-719403-A (GB)
Title: Improvements relating to the production of grey cast iron
Inventor: LAMB ROGER MAXWELL
IPC: C22C37/04
Filed: 1952-02-01
Abstract: Spheroidal graphite is produced in alloyed or unalloyed grey cast iron by the addition of thorium to the molten iron.  The thorium may be added as a powder mixture, e.g. with nickel, or as an alloy, and an inoculant, e.g. ferro-silicon, may be added after the thorium. Thorium may be used alone or in combination with magnesium particularly when there is present an element which hinders the formation of spheroidal graphite by magnesium alone. Specification 630,070 is referred to.
Patent GB-950871-A (GB)
Title: New metalliferous monoazo-dyestuffs containing reactive acylamino or triazinylamino groups and process for their manufacture
IPC: C09B62/255
Filed: 1961-01-24
Abstract: The invention comprises complex metal compounds containing one of the metals chromium, cobalt, nickel or copper in complex combination with mono-azo dyes which in the form of the free acids correspond to the formula <FORM:0950871/C3/1> in which n is the whole number 1, 2 or 3, X represents an acylamino or halogenated triazinylamino group, Y represents a hydrogen atom or a sulphonic acid group and Z represents a hydrogen or halogen atom or a nitro, acylamino or halogenated triazinylamino group and at least one of the symbols X and Z represents a halogenated triazinylamino group or an aliphatic acylamino group known to be capable of entering into chemical combination with the hydroxyl groups of cellulosic fibrous material with the splitting up of a multiple bond on the splitting off of a loosely bound substituent and in which at least one of the symbols Y represents a sulphonic acid group.  The complex dyes may be prepared by treating an appropriate metal free dye with an agent yielding the desired metal or by treatment of an appropriate dye with copper in the presence of an oxidizing agent or by treating an appropriate metallized dye containing an acylatable amino group with an appropriate anhydride or halide of an aliphatic acid or a di- or trihalogen-triazine and when a trihalogen-triazine is used, optionally treating the product with a mercapto- or hydroxyl compound or with ammonia or a primary or secondary amine.  Representative of the many acid chlorides or anhydrides specified are chloromaleic anhydride, acrylic, chloracrylic and chlorocrotonic acid chloride, b -bromo- and b -chloro-propionic acid chloride and a  : b -dichloro-propionic acid chloride. Halogen-triazines specified include such compounds as cyanuric chloride and bromide and primary condensation products of cyanuric chloride which contain two chlorine atoms and in place of the third chlorine atom, a primary amino group or an aliphatic or aromatic radical, e.g. phenyl or methyl and condensation products of cyanuric chloride or bromide with ammonia, or with such compounds thiophenols, mercapto-benzthiazole, mercaptoacetic acid, diethylthiocarbamic acid, a phenol, a phenol-sulphonic acid or alcohol, b -hydroxy-ethylamine, methoxyethylamine, morpholine chlorethylamine, N-methylamino-ethane sulphonic acid aminonaphthalene mono-, di- or tri-sulphonic acid or 5-amino-salicylic acid.  Examples are furnished. The dyes are particularly suitable for dyeing or printing cellulose.
Patent GB-766886-A (GB)
Title: A device for screening or neutralising dowsing rays or fields
IPC: A61N1/16
Filed: 1954-02-01
Abstract: 766,886. Radiation screening devices. EDWARDS, W. G. Feb. 1, 1955 [Feb. 1, 1954], No. 2929/54. Class 81(2) A device for screening the body from dowsing rays or fields comprises a foundation 4 of paper or other suitable material to which is secured rings 1 or loops of metal wire or foil arranged in a comtiion plane so that they do not touch one another. The rings 1 or loops may be made of copper wire or foil and each ring may be broken to form a gap 2.
Patent GB-1460042-A (GB)
Title: Glass compositions and fibres made therefrom
IPC: C03C13/00
Filed: 1974-01-22
Abstract: 1460042 Glass compositions; fibre reinforced cement TURNER & NEWALL Ltd 8 Feb 1974 [14 Feb 1973] 03011/74 Headings C1M and C1H [Also in Division C3] A glass composition consists of, in weight per cent where R 2 O is Na 2 O and/or K 2 O, optionally including up to 5% Li 2 O, and R<SP>1</SP>O is at least one of MgO, CaO, SrO and BaO. The rare earth metal oxide may be CeO 2  or a natural rare earth mixture. The glass may be in fibre form, in which case it may be used as reinforcement for a cementitious material, in an amount up to 30% by weight of the material (based on total dry weight).
Patent GB-118558-A (GB)
Title: Improvements in Portable Instantaneous Water Heaters.
Inventor: MAY SAMUEL
IPC: A47J27/21
Filed: 1918-02-20
Abstract: 118,558. May, S. Feb. 20, 1918. Geysers; portable liquid-heaters.-In a waterheater of the kind described in Specification 19547/13, the cold-water container a is self-filling, and the cock previously provided between the supply tap b and the heating-coil d is dispensed with, the end of the coil being fitted with a drawoff tap g' and connected by an external pipe g<2> to the top of the container, so that heated water may return to the container when the draw-off tap is closed. The coil is cleaned by pouring acid into a cup b<3> fitted on its inlet end. In a modification, the supply tap b is dispensed with, and the gas-supply cock k is independently operated.
Patent GB-357464-A (GB)
IPC: B65C1/02
Filed: 1931-01-31
Abstract: 357,464. Labelling-machines. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Jan. 31, 1931, No. 3151. Convention date, Dec. 24, 1930. [Class 73.] In a machine for applying duty stamps to the bottoms of packed goods, the machine is designed so that it is unnecessary to turn the goods upside down, and for this purpose the pile holder i is laterally cranked, or otherwise deflected, past the feed track a for the goods b. The stamps are fed to a rotary drum e from the bottom of the pile, the drum having raised portions g and grippers h. The stamp is applied to the goods through a slot d in the track.
Patent GB-786608-A (GB)
Title: Improvements in or relating to composite sheet metal
IPC: B21D53/04
Filed: 1956-02-01
Abstract: 786,608. Making composite sheets for heat exchangers; stamping; jointing by rolling. GENERAL MOTORS CORPORATION. Feb. 1, 1956 [Feb. 25, 1955], No. 3178/56. Classes 83 (2) and 83 (4). A method of making a composite sheet for a heat exchanger comprises roll bonding a pair of superimposed metal sheets 10 and 12 between which are a first pattern 14 of stop-weld material, adapted on subsequent dilation to form a system of passages, and a second separate pattern 18 of stop-weld material, situated between the first pattern and an edge of the superimposed sheets; dilating the second pattern on the composite sheet thus formed to form bulged portions corresponding to the position of specific zones of said first pattern; and marking the composite sheet to locate said zones. The stopweld material, e.g. a mixture of graphite and water glass, is applied to the lower sheet 12 and the second pattern 18 has projections 20 located immediately opposite the midpoints of the unstopped areas 16. The sheets 10 and 12 are then assembled and passed between heated rolls to form the composite sheet 21. In order to locate accurately the zones between the welded areas 16 the transverse edge of the composite sheet is prised open at one of the two positions at which the pattern 18 meets that edge and high pressure fluid is introduced to dilate the second pattern to form passages 18a and short locating side channels 20a which by drawing a line 22 between the channels locate the mid zones of the welded areas. Finally, the passages 18a and side channels 20a are cut from the composite sheet and the sheet is bent to serpentine shape, Fig. 5, so that each curved portion includes the zones between the welded areas 16 and the pattern 14 is dilated on a die 26 to form a refrigerator evaporator.
Patent GB-780577-A (GB)
Title: Process for the catalytic hydrogenation of carbon monoxide
IPC: C07C1/06
Filed: 1954-02-04
Abstract: A process for the catalytic hydrogenation of carbon monoxide with recycling of a portion of the exit gases from the reactor, comprises dividing the recirculated gas into two streams, recycling one stream to the reactor without removing its content of carbon dioxide, and removing the carbon dioxide as extensively as possible from the other stream and combining it with the incoming fresh synthesis gas.  The process may employ fixed bed catalysts, fluidized catalysts, catalysts suspended in liquids, or catalysts which are moved continuously downwardly through the synthesis zone.  The hydrogen to carbon monoxide may be from 0.7 to 3.0 to 1, and the temperature may lie between 170 DEG  and 350 DEG  C. and the gas pressure may be from 5-100 kgs./sq. cm.  In an example a catalyst was used consisting of 100 parts of Fe, 25 parts of Cu, 5 parts of K2O and 25 parts of SiO2 and the gas entering the reactor comprised 24.5 per cent Co and 48.9 per cent of H2.  The recycle gas was divided, one part having a CO2 content of 12 per cent and the other part having this content reduced to 0.1 per cent.
Patent GB-838000-A (GB)
Title: Improvements in or relating to wire or like stranding machines
IPC: D07B7/08
Filed: 1958-02-03
Abstract: 838,000. Stranding machines; stop motions. PIRELLI S.p.A. Feb. 3, 1958 [April 12, 1957], No. 3432/58. Class 109 Means, which are sensitive to the rotation of the respective supply bobbins of a stranding machine, stop the machine when a bobbin ceases to rotate upon breakage of a wire &c. A casing 1 carries a rotatable spindle 4 which is coupled by gearing to a bobbin spindle and has a disc 5 fixed to it. A disc 7 is urged in one direction by a spring 8 and in the other direction by the rotation of the disc 5 acting through the medium of oil or other liquid contained in a chamber 12, so that during rotation an electrical contact 13 mounted on the disc 7 is closed with a contact 14 mounted on a fixed insulating ring 11 to complete a circuit. Upon breakage of the wire the spring 8 rotates the disc 7 separating the contacts 13 and 14 to break the circuit and stop the machine. A time-delay relay in the circuit prevents the machine being stopped by irregularities in the rotation of the bobbins.
Patent GB-541358-A (GB)
Title: Improvements in or relating to the production of esters of ether-alcohols
Filed: 1940-02-23
Abstract: 541,358. Ester-ethers. DU PONT DE NEMOURS & CO., E. I. Feb. 23, 1940, No. 3437. Convention date, Feb. 24, 1939. [Class 2 (iii)] Esters of ether-alcohols are produced by hydrogenating bodies of the formula in which R<SP>1</SP> is alkoxy or alkoxy-alkoxy and R<SP>2</SP> is an ester group, in the liquid phase in the presence of a hydrogenating catalyst. The re-action may be effected in the presence of a suitable oxygen-containing solvent such as an alcohol, ether or ester, at 50-200 ‹C. and at pressures up to 1000 atmospheres. The catalyst may be nickel or copper with or without metal oxide promoters, copper, chromite being especially suitable. Examples describe the hydrogenation with a nickel catalyst in the presence of methanol of methyl formyl methoxy acetate and of methyl (methoxymethoxy) formyl acetate with the production of the α-methyl and α-methoxy-methyl ether of methyl glycerate, respectively. Alkylalkoxy formylacetate and similar compounds are made by reacting alkyl alkoxy acetates with alkyl formates as described in Specification 541,356. The Specification as open to inspection under Sect. 91 gives the formula of the initial substance as where R<SP>3</SP> is hydrogen, alkyl, aryl, alkoxyalkyl, alkoxy-alkoxy-alkyl or a heterocyclic compound obtainable by re-acting such a compound with an aliphatic aldehyde or ketone. Examples of such compounds are methyl ((carbomethoxy) methoxy) formyl acetate (CH 3 OOC.CH 2 O.CH(CHO)COOCH 3 ) formyl acetic, propionic, butyric, isobutyric or higher aliphatic acids or their esters, formyl acetone, formyl diethyl ketone, formyl aceto- and propionitriles, formyl acetamide and propionamide, 5- formyl-1-3-dioxol-4-one, and 2-2-dimethyl-5 - ormyl-1-3 - dioxol-4-one In each case the CHO group is reduced to a primary alcohol group, the rest of the molecule remaining unchanged. This subject-matter does not appear in the Specification as accepted.
Patent GB-859495-A (GB)
Title: Improvements in and relating to the radio control of missiles
Inventor: WARD LESLIE JOSEPH
IPC: F41G7/30
Filed: 1955-02-04
Abstract: 859,495. Missile guidance systems. ENGLISH ELECTRIC CO. Ltd. May 1,1956 [Feb. 4,1955], No. 3451/55. Class 40(7). [Also in Group XXXV] In a missile control system, the missile radar housing head is positioned, so as to look at the target, by radio signals derived from a ground computor energized by missile and target radar tracking equipment. The missile is first guided towards the target, from the ground, by a beamriding or beam-pulling system and when sufficiently close, the missile guides or homes itself by its own radar equipment, after the housing head has been positioned to see the target. In the beam riding system, Fig. 2, the computer 23 compares the positions of the missile 24 and target 25 and positions the beam 27 transmitted by the missile radar tracking unit 21 so as to guide the missile into engagement with the target. The means 26 respond to the beam 27 and supply control signals to maintain the missile within the beam. In the beam pulling system, Fig. 3 the positions of target 45 and missile 44 are compared in computor 43 which supplies the navigational signals required by the missile to maintain it in the missile tracking beam 49 and which are transmitted along the beam. In the missile radar homing head control computor, Fig. 7 the polar co-ordinates #m, #m of the missile are supplied to unit 61 which produces three electrical output signals corresponding to rectangular coordinates of the missile from the missile tracking unit. Similarly, the unit 63 has outputs corresponding to the rectangular coordinates of the target and these together with the outputs from 61 are added algebraically in 66 to produce signals representing the rectangular coordinates of the target relative to the missile. These are multiplied by the time differential of the outputs from 61 and are then added together in 69. The vector output of 69 is now divided, at 72, by the sum of the squares of the outputs of differentiators 67 and by the length of the missiletarget vector derived from 71, to produce an output representing the angle between the missile axis and the missile-target vector. The signal representing the angle between the missile-target vector and the vertical is derived at the dividing revolver 73 from the input and output of 71. The signals from 72, 73 are transmitted to the missile to lock the radar homing head of the missile in the target direction. In a second form, not shown, the missile-target vector is computed relative to the missile axis. In a third embodiment not shown the homing head is initially locked in alignment with the missile axis and the signals, previously employed to control the homing head, are applied to the missile navigational system to cause the missile to be directed at the target, after which the housing head is unlocked and controls the missile flight. In a fourth embodiment, not shown, the housing head is initially set in the predicted direction of the missile-target vector at the commencement of the acquisition phase.
Patent GB-538447-A (GB)
Title: Improvements in or relating to insulated electric conductors
IPC: H01B3/50
Filed: 1940-02-26
Abstract: 538,447. Impregnating-composition for electrical insulation; fireproofing. PHILIPS LAMPS, Ltd. Feb. 26, 1940, No. 3573. Convention date, Jan. 18. [A Specification was laid open to inspection under Sect. 91 of the Acts Aug. 29, 1940]. [Class 140] The textile fabric covering of an electric conductor is impregnated with a fire-repellent mass comprising chlorinated rubber, softener, e.g. tricresyl phosphate, in an amount exceeding one third of the weight of the mass and a mineral wax, e.g: ceresin in an amount less than a quarter of the weight of the mass. The composition may be applied hot and a solvent may be added to reduce the viscosity. The Specification as open to inspection under Sect. 91, comprises also the use of tributyl phosphate as plasticizer and refers to light gasolene and benzene as suitable solvents, while an addition of wax is optional. This subjectmatter does not appear in the Specification as accepted.