baber/WOPTO huggingface dataset:
Patent GB-1054409-A (GB)
IPC: H03M1/00
Abstract: 1,054,409. Analogue-to-digital converters. GENERAL ELECTRIC CO. Ltd. Dec. 21, 1964 [Oct. 15, 1963], No. 40623/63. Heading G4H. In apparatus for coding successive samples of a signal a capacitor 6, Fig. 1 (not shown), is charged by a sample, of either polarity and discharged by connection with a reference voltage of opposite polarity, the time taken to discharge to a reference potential, e.g. earth, being representative of the amplitude of the sample. A number of signals are sampled in turn by gates such as gate 5 and the samples charge capacitor 6. This gives one input to an A.C. bridge 9, the capacitor 6 with diode 12 forming one limb, the other being formed by diode 13 and capacitor 14. The other limbs 16 and 17 may also contain capacitors. High frequency oscillations from oscillator 10 are applied to the bridge, and transformer 19 connected across the limbs gives an output from secondary 21 until a balance condition is reached. When the charge on capacitor 6 becomes zero the bridge is balanced. While the charge is positive the output via amplifier 11 is of one phase and when the charge becomes negative the output is of the other phase. According as to whether the sample is positive or negative one or other of phase discriminators 23, 24 gives a signal to set bi-stable 34 in one state or the other. The bi-stable produces an output of polarity opposite to that of the sample, which is applied to the capacitor 6 by way of potential divider 35, 38. Outputs from bistable 34 also inhibit the gate 25, 26 associated with the discriminator not producing a signal. The output line 3 accordingly produces pulses until the charge on capacitor 6 has fallen to zero. Pulses produced by the other discriminator as the polarity reverses are blocked. The pulses are counted and the count applied as a combination of markings on 6 leads to a shift register. A polarity bit is added from lead 4 and a synchronization bit is also added. The eight bits are then read out in serial form to represent the coded equivalent of the input amplitude. Decoder (Fig. 2, not shown).-At the receiver the serial pulses are staticized by a shift register 50 and applied through gates 55 to a counter decoder. The polarity bit sets bi-stable 65 to begin charging capacitor 73 through network 68. The counter 59 is returned to zero by clock pulses and at zero it produces a differentially timed pulse on lead 64. This opens gate 70 for a fixed period. The signal on lead 71 of polarity opposite to that on lead 69 is then applied to capacitor 73 to begin discharging. At the end of the cycle the gate 78 opens to pass a proportion of the charge on capacitor 73 to lead 80. The sample is thereby reconstituted and is stretched to re-form the original signal.
Patent GB-1098991-A (GB)
Abstract: 1,098,991. Capacitors. P. R. MALLORY CO. Inc. April 13, 1965 [May 5, 1964], No. 15770/65. Heading H1M. An electrolytic capacitor comprises a copper or silver cathode can with a connecting lead soldered thereto containing a triangular plastic support 13 for anode 12 of porous tantalum, niobium, zirconium, titanium or aluminium carrying a vertical integral riser 18 of similar metal. A conical anode spacer of similar metal is threaded over the riser and the can contains a sulphuric acid electrolyte with excess cathode metal ions and an optional gelling agent, e.g. silica gel. A seal comprises acid resistant discs 20a, 20b, which may be of fluorinated plastic or glass fibre reinforced epoxy resins separated by an adhesive 19 of e.g. polyisobutylene. The latter is also coated on the inside of the can and the riser 18 to bond into a solid seal when the discs are pressured. A tinned nickel anode lead 2b is welded to riser 18. In a modification (Fig. 2, not shown) a heated tool is applied to the seal to fuse the adhesive and force it radially outwards to engage walls and the anode riser while another tool swages over the walls of the can to retain the seal; the resultant cavity being filled with casting resin.
Patent GB-1107348-A (GB)
Abstract: 1,107,348. Dust-bag for vacuum cleaner.GOBLIN (B.V.C.) Ltd. 27 Feb., 1967 [8 Dec., 1966], No. 55017/66. Heading B1T. A cylinder-type vacuum-cleaner comprises a porous dust-bag b, secured permanently or removably at one end to a cover c, e, which incorporates the end of the cylinder a and an inlet coupling h for the hose, and closed at the other end by interlocking fabric elements q, whereby this end can be opened to discharge dust and closed for re-use. The cover is in two parts, clamping resilient sleeve h between them, and carries a resilient flap o which is opened in use, either by air flow or by abutment of the hose end.
Patent GB-1225339-A (GB)
IPC: C08F236/04
Filed: 1969-08-27
Abstract: 1,225,339. Copolymers of conjugated dienes and α-olefins. BRIDGESTONE TIRE K.K. 27 Aug., 1969 [30 Aug., 1968], No. 42645/69. Heading C3P. Random copolymers are prepared by polymerization of a C 4-8  conjugated diene and a C 2-8  α-olefin with a catalyst system comprising (A) at least one compound selected from the chlorides and bromides of titanium and the oxychlorides of vanadium and (B) at least one organoaluminium compound of the formula AIR 3 , wherein R is a C 1-10  hydrocarbon radical, the molar ratio of component (B) to component (A) being 0À75 to 15, at a polymerization temperature of - 70 to + 150 C. in a hydrocarbon solvent in the presence of a high molecular weight polyether having a polymerization degree of not less than 10, obtained by ring- opening polymerization of at least one ofalkylene oxide, tetrahydrofuran or their derivatives. In the examples, butadiene/propylene, isoprene/ propylene and isoprene/pentene-1 copolymers are prepared using triethyl aluminium, titanium tetrachloride and polypropylene oxide in toluene. The isoprene/pentene-1 copolymer is also prepared using triethylaluminium, vanadium oxychloride and polypropylene oxide in toluene or triisobutyl aluminium, titanium tetrabromide and polypropylene oxide in toluene.
Patent GB-1226076-A (GB)
IPC: F16D25/0638
Filed: 1969-09-24
Abstract: 1,226,076. Clutch control. EATON YALE & TOWNE Inc. 24 Sept., 1969 [30 Sept., 1968], No. 47094/69. Headings F2C and F2L. The engaging pressure of a friction clutch 37 which slips on overload is varied as a direct function of the pressure in the combustion chamber of a gas turbine engine or other engine condition and is varied as an inverse function of engine speed. As shown, the combustion chamber pressure is applied through a line 39, and ducts 52, 51 to a chamber 41 and acts on a piston 33 to engage the clutch 37. This engaging pressure is opposed by the centrifugal force acting on liquid trapped in a chamber 43. The clutch 37 comprises friction discs 77, 81 respectively splined to a drum 65 fast with an input shaft 49 and an output shaft 38. The input shaft 49 is connected to the free turbine of a gas turbine engine. The output shaft 38 may drive the wheels of a vehicle through a change speed gear of the type described in Specification 1,186,877. The clutch engaging pressure may be a direct function of combustion chamber pressure, compressor speed, engine fuel pressure, or throttle position. In Figs. 3 and 4 (not shown), the clutch engaging pressure is opposed by pressure supplied to a chamber (43a) through ducts (91), (97), (98) and (104) at a pressure which is a function of engine speed. A pump (88) supplies pressure liquid to the chamber (43a) through a valve (98) controlled by an electric control circuit (92) responsive to engine speed detected by a pulse generator (93). In Fig. 5 (not shown) the free turbine of a gas turbine engine is directly connected to the clutch pressure plate and the axial thrust on the turbine (28b) provides the engaging pressure. The engaging pressure is directly proportional to the chamber pressure and inversely proportional to the turbine speed.
Patent GB-1228451-A (GB)
IPC: B23K26/00
Filed: 1968-08-26
Abstract: 1,228,451. Sealing glass to metal or glass. COMPAGNIE GENERALE D'ELECTRICITE. 26 Aug., 1968 [1 Sept., 1967; 18 Sept., 1967], No. 40781/68. Heading C1M. A vitreous element to be subject in use to high thermal stress, is secured to a metallic element, particularly a metal wire, and/or to a further vitreous element by pre-heating the elements in a controlled atmosphere in a furnace and fusing the vitreous element or elements with a laser beam. As shown in Figs. 2 and 3, a metal wire 13 to be secured between two glass parts 14, 15 are all preheated in a furnace (10), which may be pressurized with an oxidizing, reducing or neutral atmosphere, with a window (11) through which a focused laser beam 9 is positioned to heat adjacent portions 17 and 18 of the glass, which forms a part 19, the part 16 of the wire 13 being melted to form a bead 20. Grooves 21, 22 are preferably provided to limit the area deformed. Instead of a single beam, a pair of beams from a single source, may be focused either side of the desired weld. Where the wire is to protrude and must be protected from melting, a circular beam may be used. A double beam, from a single or double source, may be used, with an outer circular beam (48) preheating the glass and an inner beam (49) acting only for a short instant to complete the welding. The preheating beam (48) may be progressive. A grid tube type of colour television tube may be formed from square cone (50) and face plate (51) sections with outwardly extending flanges (52, 53) between which are secured a series of parallel metal filaments (56) tensioned by a frame (57, 58), the tensioning being correctable up to the time of the action of the laser beam, or, preferably, double beam. The filaments may be connected outside the tube or by a transverse conductor between the flanges (52, 53), as by a metallized part of the flange. The beam may be a C0 2  laser and focused by a lens or mirror of sodium chloride.
Patent GB-1229283-A (GB)
IPC: B01J21/00
Filed: 1968-07-18
Abstract: 1,229,283. Ammoxidation catalysts. BADISCHE ANILIN-& SODA-FABRIK A.G. 18 July, 1968 [19 July, 1967], No. 34181/68. Heading B1E. [Also in Division C2] Catalysts, used in ammoxidation processes, comprise Al 2 O 3  containing 2-10% by weight V 2 O 5 , 1-10% by weight Sb 2 O 3  and 0.02-2% by weight alkali metal oxide, said Al 2 O 3  having been prepared by heating an aluminium hydroxide or hydrated oxide at 600-900‹C before adding the other catalyst components. The catalysts are prepared by impregnating the Al 2 O 3  with a solution containing salts of the metals, followed by drying and decomposition of the salts to form oxides, by heating in a current of oxygen-containing inert gas. Additionally the catalysts may contain Fe 2 O 3  and/or WO 3 .
Patent GB-1231113-A (GB)
IPC: H01H19/00
Filed: 1969-02-12
Abstract: 1,231,113. Printed circuit assemblies. PYE Ltd. 26 Nov., 1969 [12 Feb., 1969], No. 7633/69. Heading H1R. [Also in Divisions H3-H5] An amplifier circuit is supported by a disc of insulating material 1 provided at or adjacent to its periphery with a plurality of discrete areas of conducting material M1-M9, adapted for external connection from the disc, at least some of which, M5-M9, have connections to said amplifier by way of resistors R5-R9 to serve as a gain control. In a hearing aid, the disc rotatable in a recessed insulated body having electrical contacts which overlap the periphery of the disc to selectively engage the conductive areas M1-M9. A further conductive area 7 is applied to the opposite side of the disc and is continuously engaged by another contact, the contact pressure being such that the disc is " floated " between the contacts. During part of the rotation permitted by a stop tab 15, connection is maintained to the areas M2-M4 to provide connections to microphone earpiece and battery while a selected one of the resistors R5-R9 is switched into the circuit to provide a volume control. At the limit of movement the areas M2-M4 are disconnected to switch the device off.
Patent GB-1231918-A (GB)
IPC: A61F2/00
Filed: 1969-04-09
Abstract: 1,231,918. Femoral fixation device. FEINMECHANIK A.G. fur. 9 April, 1969 [7 May, 1968], No. 18208/69. Heading A5R. A femoral fixation device comprises a plate 1 curved at one end 11, with a slot 12, through which passes a connecting screw 5 which screws into the head 7 of a pin (6). The pin has a radially serrated frusto-conical head 7 which fits into a radially serrated depression 17 surrounding a hole 16 in an intermediate plate 4. The other face of the plate 4 is curved so as to fit against the curve of the plate 1, and both these adjoining faces have transverse serrations, 15 and 13 respectively. A washer 3 fits between the other curved surface of the plate 1 and the head of the screw 5. When screwed together, the pin (6) and plate 1 remain immovable in relation to each other. In an alternate embodiment, Fig. 4, (not shown) the serrations are on the other side of the plate 1, the face of plate 4 being smooth, and the curved face of washer 3 has a transverse serration to engage those on plate 1.
Patent GB-1232862-A (GB)
IPC: C01G55/00
Filed: 1968-04-10
Abstract: 1,232,862. Palladium carbonyl halides. OLIN CORP. 10 April, 1968 [10 April, 1967], No. 17278/68. Heading C1A. [Also in Division C2] A process for preparing a palladium carbonyl halide of the formula [Pd(CO)X] n , where X is Cl, F, Br or I and where n is an integer from 2 to 100,000, comprises reacting carbon monoxide with (a) a palladium dihalide or (b) a mixture of elemental Pd and an acid halide (e.g. COCl 2 , VOCl 3 ), or (c) mixtures of (a) and (b) in a halogenated and/or an aromatic hydrocarbon. Preferably, the reaction is effected with a CO pressure of 14 to 8000 p.s.i.a. and between 20‹ and 250‹ C.
Patent GB-1232881-A (GB)
IPC: F04F5/46
Filed: 1968-06-25
Abstract: 1,232,881. Raising liquids; pumping gases. GENERAL ELECTRIC CO. Ltd. June 25, 1969 [June 25, 1968], No.30141/68. Addition to 1,132,442. Headings F1N and F1R. A modification of the pump disclosed in parent Specification comprises a pair of passages 5 and 6 extending into a cavity 2 through which fluid is forced to flow on pulsating the fluid in passages 5 and 6 by wall portions 11, 12 cyclically deformed by arms 17 and 18, which reciprocate vertically and 180 degrees out of phase with one another. Further embodiments disclose different ways of effecting cyclic deformation of wall portions: In one embodiment cams (26), (27) Fig.2 (not shown), driven 180 degrees out of phase with one another are so disposed as to press and deform the wall portions 11 and 12. In a further embodiment deformation is achieved by enclosing each wall portion in a separate fluid tight container (46) Fig. 4 (not shown) and forcing a further fluid into the resulting enclosure (48) (49), the pressure of said further fluid in each enclosure being cyclically varied as before. In a yet further embodiment de formation can be achieved by electromagnetic means said wall portions being pushed or pulled out of shape by having electromagnets attracting magnets or magnetizable material placed on either side of the deformable portion or attached thereto.
Patent GB-1233634-A (GB)
IPC: G03B42/02
Filed: 1969-08-27
Abstract: 1,233,634. X-ray apparatus. COMPAGNIE GENERALE DE RADIOLOGIE. 27 Aug., 1969 [27 Aug., 1968, No. 42579/69. Heading H5R. In X-ray apparatus permitting a quick change from viewing an X-ray image with a light amplifier to photographing the image, the pick-up screen 14 of the light amplifier 8, positioned beneath the object or patient 11 being X-rayed, is connected to the body of the amplifier by a light-tight bellows 15, and is displaced downwards by means interconnecting it with the carriage 4, supporting a cassette 5 with X-ray film 6, when the carriage is moved to the right to place the film in the position formerly occupied by the screen 14. As shown, the screen 14 is forced downwards by the action of an inclined guideway 13, fixed to the carriage, on a cam follower 12 fixed to the screen. In other embodiments, the screen is pivoted about an axis by the guide and cam follower (Fig. 4, not shown), or the bellows are replaced by telescopic shrouds (Fig. 3, not shown). The apparatus is provided with an anti-diffusion grid 7.
Patent GB-1237926-A (GB)
IPC: C09B23/10
Filed: 1968-10-18
Abstract: 1,237,926. Nitroindoles. EASTMAN KODAK CO. 18 Oct., 1968 [23 Oct., 1967], No. 11949/69. Divided out of 1,237,925. Heading C2C. Novel nitroindoles of the formula in which R 1  represents alkyl, substituted alkyl, aralkyl, cycloalkyl, alkenyl, aryl or substituted aryl and R 3  is aryl or substituted aryl are prepared by nitrating a compound of the formula with an approximately equimolar amount of sodium nitrate in conc. H 2 SO 4  at a temperature not exceeding 10‹ C. to obtain the 3-H-5 nitroindoles and treating the latter with an approximately equimolar amount of POCl 3  in dimethylformamide followed by hydrolysis with an aqueous alkali metal hydroxide to obtain the 3- formyl-5-nitroindoles. Examples relate to the 1- methyl-2-phenyl derivatives.
Patent GB-1251270-A (GB)
IPC: G01S7/282
Filed: 1969-05-27
Abstract: 1,251,270. Automatic frequency control. PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd. 27 May, 1969 [30 May, 1968], No. 26765/69. Heading H3A. In a radar equipment comprising a tunable magnetron 2 with means for continuously varying its frequency and means 5 for triggering it to transmit radar pulses of varying frequency, the receiver local oscillator 3 is locked in frequency at triggering to a value which is related in a certain manner to the frequency of the transmitted pulse by a memory means 9, and is then maintained at this value a predetermined time after triggering for producing a predetermined intermediate frequency by correction circuits one of which 22 is sensitive to rate of change of transmitter frequency. The local oscillator is locked to the " cold " magnetron frequency by a control loop which include circulator 6, frequency/voltage converter 7, memory capacitor 9, and a gate 8 which is closed when the transmitter is triggered. The control signal stored in capacitor 9 is differentiated by unit 23 and gated into a store 27 by gate 26 which is also controlled by the triggering signal. The stored signal is then fed via a further gate 28 to AND 20. The outputs from the local oscillator 3 and transmitter 2 are also fed to a mixer 12 and the resulting difference frequency output is fed to a discriminator 16 to produce a further control signal which is fed to a gate 17. The output from gate 17 is integrated at 19 and fed to AND 20, the resulting combined signal then being added to that directly obtained from gate 17 in AND 18. The resulting composite control signal is then combined with that stored in capacitor 9 to control the local oscillator 3 frequency.
Patent GB-1251815-A (GB)
IPC: F28D7/00
Filed: 1968-11-05
Abstract: 1,251,815. Forced-flow steam boilers. L. & C. STEINMULLER G.m.b.H. 5 Nov., 1968 [11 Nov., 1967], No. 52425/68. Heading F4A. In a forced-flow once-through steam generator having upcomer, cross and downcomer sections, having outer walls formed of vertical or substantially vertical tubes, the outer walls 1, Fig. 7, of at least the upcomer section are screened by walls 2 against the hot burner gases, thereby avoiding high thermal stresses at the welds of the outer walls. The walls 2 may comprise an evaporator, economizer or, as shown, a superheater, and may be formed of vertical tubes, flat meandering bands of tubes, or coils or stepped tubes. The adjacent tubes of the outer walls are interconnected by webs, the widths of the webs being wider in the screened regions of the outer walls. Moreover, alternate tubes or groups of tubes of the outer walls may form different banks, the tubes of one bank being of different diameter or thickness than the tubes of the other bank, Figs. 5 and 6 (not shown). Cross-ties 11 in the form of catwalks are arranged between the outer walls 1 and an external pipe 3 which belongs to a system of pipes which connects several banks of vertical tubes. The outer walls 1 are insulated at 13.
Patent GB-1257776-A (GB)
IPC: H04M19/04
Filed: 1967-11-03
Abstract: 1,257,776. Substation equipment. GENERAL ELECTRIC CO. Ltd. 3 Feb., 1969 [3 Nov., 1967; 19 July, 1968], Nos. 50120/67 and 34571/68. Headings H4J, H4K and H4X. [Also in Division G5] A tone sounder for use in place of the bell of a subscriber's set comprises a pair of acoustically and electrically coupled transducers which are caused to "sing" when ringing current is applied thereto. The microphone is of the carbon type so that during each half cycle of ringing its polarity of energization is changed whereby the resonant frequency of the coupled transducers alters, e.g. from 1200 to 1800 c.p.s. The transducers may be the normal microphone and receiver of the set (Fig. 1, not shown), an additional carbon microphone coupled to the normal receiver (Fig. 2, not shown) or an additional receiver coupled to the normal microphone (Fig. 3, not shown). In Fig. 4, both transducers 21, 22 are additional to the normal ones. Thermistor 9 prevents "tinkling" due to line noise and, when the handset is on-hook, prevents speech signals in the vicinity of the set from being sent to line, i.e. an anti-bugging device. The sounder may be coupled to line by a transformer (not shown). Incoming speech signals may be applied to a transistor amplifier (not shown). Transducer assembly (Fig. 5). A plastics moulding 42 in the form of two shallow, roundended boxes interconnected by a slot 46, has a carbon microphone 44 and a rocking-armature receiver 45 mounted in apertures in two of its major faces. The volume of sound emitted by the assembly may be adjusted by varying the area of holes 48 with the aid of a shutter (not shown). The assembly is a direct replacement for the conventional bell and the lower face "48" is secured to the base of the set.
Patent GB-1258332-A (GB)
IPC: B63B59/08
Filed: 1969-03-28
Abstract: 1,258,332. Cleaning underwater surfaces. C. SIERRA and P. PINCE. 28 March, 1969 [5 Aug., 1968], No. 16397/69. Heading B7M. A brush 1 of underwater brushing equipment described in Specification 1,040,202 is given rotary movement by hydraulic fluid under pressure supplied through flexible pipe 3 by pump 2 operated by a motor and the assembly of pump and motor is mounted in a container 4 associated with at least one buoy 5 or 6 to make the container float on water, the flexible pipe 3 being the only connection between the brush and the assembly.
Patent GB-1266559-A (GB)
IPC: A47G9/08
Filed: 1969-08-09
Abstract: 1,266,559. Sheets; blankets; sleeping bags. FRANK GLOVER & CO. (MANCHESTER) Ltd. Aug. 10, 1970 [Aug. 9, 1969], No. 39941/69. Headings A4G and A4S. A blanket or sheet is doubled back on itself at each end and secured along overlapped side edges to form a sleeping bag having upper and lower layers a, a<SP>1</SP> and a pocket a<SP>3</SP>, a<SP>4</SP> to receive a pillow. A folded-back free end a<SP>5</SP> is bound at a<SP>6</SP>, the longitudinal edges are seamed and loops a<SP>7</SP> are provided to secure the bag to the sides of a cot.
Patent GB-1267109-A (GB)
IPC: A01D23/04
Filed: 1969-12-22
Abstract: 1,267,109. Pinching agent composition. PROCTER & GAMBLE CO. 22 Dec., 1969 [24 Dec., 1968], No. 62222/69. Heading C1B. A concentrated composition, suitable for dilution with water to form emulsions for use as chemical pinching agents for plants, comprises (A) a mixture of (1) a methyl ester of one or more C 6  to C 12  straight chain fatty acids, and (2) a fatty acid ester of polyethoxylated sorbitan in which the fatty acid has from 10 to 18 carbon atoms and there are from 5 to 80 ethoxy units per molecule; the ratio of the methyl ester to the fatty acid ester of polyoxyethylated sorbitan being from 3:1 to 1 : 1À2; and (B) water in an amount that renders the composition clear and single-phase, the amount being from 4 to 16% by weight of the total composition. Suitable methyl esters ((A)(1)) are methyl octanoate, nonanoate, and/or decanoate.