baber/WOPTO huggingface dataset:
Patent GB-1253208-A (GB)
IPC: B22F3/11
Filed: 1967-12-08
Abstract: 1,253,208. Sintered porous materials. JOSEPH LUCAS (INDUSTRIES) Ltd. 13 Nov., 1968 [8 Dec., 1967; 13 March, 1968], Nos 55853/67 and 12145/68. Headings C3C and C3P. [Also in Division C7] A porous structure, e.g. a polypropylene support for a membrane, is produced by mixing polypropylene in powder form with acrylic latex, heating the mixture to drive off the liquid and leave a powder coated with particles of the acrylic polymeric material, pressing the powder into a body having the shape of the required porous structure, e.g. a strip, and then forming the body into the porous structure by removing the acrylic polymeric material and sintering. The acrylic material may be removed by heating, the heating process also serving to sinter the body and produce the required porous structure and by leaching with acetone after sintering.
Patent GB-1258614-A (GB)
IPC: F04D29/38
Filed: 1969-02-28
Abstract: 1,258,614. Axial-flow fans. FRAM CORP. Nov.19, 1969 [Feb. 28, 1969, No.11018/69. Heading F1C. In a fan having flexible blades 15 which decamber as the rotational speed rises, the blades are provided along their trailing edges with weights 18 for assisting the decambering at a predetermined rate and for reducing noise and vibration. The weights 18 may each consist of an integral portion of the blade 15 folded back over the blade and having a mass which is 2% to 40% (preferably 8% to 10%) of that of the remainder of the blade. The blades 15 are secured at their leading edges in reinforcing caps 19 and riveted, together with the caps, to asymetrically disposed arms 13.
Patent GB-1259011-A (GB)
IPC: B01J8/22
Filed: 1969-03-28
Abstract: 1,259,011. Catalytic hydrodesulphurization. JAPAN, AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY PRESIDENT OF. 28 March, 1969 [30 March, 1968], No. 16525/69. Heading C5E. A reactor suitable for use in the hydrodesulphurization of heavy petroleum hydrocarbon oil comprises a fluidizing initiating zone located at the bottom of the reactor, an inlet for the introduction of hydrocarbon oil and a hydrogencontaining gas into the initiating zone, a fluidized reaction zone disposed immediately above the initiating zone, a separating zone disposed immediately above the reaction zone, an outlet for the removal of gas and hydrodesulphurized product from the separating zone, a catalyst settling zone disposed around the reaction zone and communicating at its upper end with the separating zone and at its lower end with the initiating zone whereby catalyst can be recycled from the separating zone to the initiating zone, and an inlet and outlet respectively for the introduction of catalyst to and the removal of catalyst from the catalyst settling zone, the maximum cross-sectional area of the separating zone being at least 1À1 times the sum of the cross-sectional areas of the reaction and catalyst settling zones and the volume of the catalyst settling zone being less than that of the reaction zone. Other preferred dimensional ratios are also specified. The apparatus may be used for treatment of residual fractions using known catalysts such as Ni-Mo, Ni-Co-Mo, Co-Mo or Ni-W on alumina or silica-alumina.
Patent GB-1264070-A (GB)
IPC: F23N1/08
Filed: 1970-07-29
Abstract: 1,264,070. Hot water heating and supply systems. JOH VAILLANT K.G. 29 July, 1970 [12 Sept., 1969], No. 36649/70. Addition to 1,157,134. Heading F4A. A forced-circulation hot water and heating system as in the parent Specification, but having the circulation pump 6 and gas supply controlled, through a solenoid valve 20 and a thermostat switch 19, by a heat-sensing element 18 exposed to the same temperature changes as the heat-sensing element 14 of the thermostatic valve. The thermostatic switch and valve may be controlled individually or by common heatsensing elements. A flow control switch 24 switches on the solenoid valve 20 and the pump 6 (provided thermostat 19 is closed) when service water is being drawn off at tap 17. If, while the service water heater is still in a hot state, water is again drawn off, switching on of the solenoid valve and pump is delayed.
Patent GB-1264281-A (GB)
IPC: B65B61/06
Filed: 1970-01-30
Abstract: 1,264,281. Producing separate blanks from a web of packaging material. M. BENGS-SENNING. 30 Jan., 1970 [27 Feb., 1969], No. 4531/70. Heading B8C. In a packaging machine, wherein a sheet of synthetic plastics film 14 is fed continuously by rollers 12, 13 for entrainment, by suction ducts 15, around the surface 10a of a turntable 10 having package pockets 16 into which packages (not shown) are pushed so that blanks 17, separated from the web, are wrapped in a U- shape around the packages, and spaced cutters 18, co-operate with a fixed blade 19 to separate successive blanks 17, a loop 20 is formed in the sheet before the hindmost of two cutters carries out a separating cut. In this manner the length of each blank, measured peripherally of the turntable 10, is greater than the peripheral spacing of a pair of cutters 18. A rocking arm 22 forms a suitable stock of material in the feed line, the loops 20 being formed by two strikers 24, 25 on a bridge element 26 which is rotatable in synchronism with the turntable 10, each striker carrying a pin 27 which is spring-urged outwardly against a stop 32 and is adapted to push a loop 20 into a corresponding package pocket 16. The depth to which a pin 27 enters a corresponding pocket 16, and the size of the loop 20 formed can be varied by adjusting the arm 31.
Patent GB-1264332-A (GB)
IPC: F23D14/10
Filed: 1968-06-11
Abstract: 1,264,332. Gas burners. D. V. GREAVES. 20 May, 1969 [11 June, 1968], No. 27745/68. Heading F4T. A gas burner comprises a sealed chamber having a lower wall 4 and an upper wall 6 provided with burner ports 11; a gas inlet 8 is directed into a Venturi tube 7 in which forms a combustible mixture of gas and air and immediately below the wall 6 is placed a metal wire gauze 15 which prevents the flames at the ports 11 from lighting back into the burner. As seen in Fig. 3, the burner ports 11 are arranged in transverse rows and smaller stabilizer ports 14 are interposed between the rows; the rows are also connected by an axial line of ladder ports 13 and two axial lines of staggered burner ports 27 are provided. In the modified arrangement of Fig. 4 (not shown), two parallel longitudinal lines of burner ports, and a line of stabilizer and ladder ports are provided.
Patent GB-1264751-A (GB)
IPC: H02H3/05
Filed: 1970-02-06
Abstract: 1,264,751. Testing protective systems. TOKYO SHIBAURA ELECTRIC CO. Ltd. 6 Feb., 1970 [10 Feb., 1969], No. 5924/70. Heading H2K. [Also in Division G4] A testing arrangement for a protective relay 10, Fig. 1, having at least one transistor element, comprises an arrangement 24 having two pulse train generators 27, 33, Fig. 2, two ring modulators 25, 26 separately modulating the pulse trains by A.C. of the fundamental frequency of the circuit protected by the relay, and means connecting the modulators to the input of the relay in such a manner that pulses of one train alternate with the pulses of the other train and produce at the relay a pulsed A.C. signal bearing a close relationship to current of the fundamental frequency, but sufficiently different therefrom for a low-pass filter 59 to confine the test signal to the relay. The ring modulators are connected to the relay 10 by transformers 45, 46, diodes 51 ... 54 and high-pass filters 56, 58 and are rendered operative by a test switch 61 completing the supply to the ring-modulator/multivibrator/oscillator arrangement 24 and changing-over contacts 21 to disconnect a circuit-breaker trip coil 22 from the relay output and to connect a counter 62 and a relay 63. The relay 10 may be a directional distance relay or a distance relay, in which case a phase-shifting device 64 may be provided in the supply to the modulators to enable the phase of the test signal to be changed with respect to the voltage signal applied to the relay. Reference is also made to the relay 10 as being an over-current relay, an under-voltage relay or a zero-sequence relay and to the protection of transmission lines, power transformers, generators, synchronous motors and of power sources for betatrons.
Patent GB-1265979-A (GB)
IPC: C07D213/50
Filed: 1969-04-24
Abstract: 1,265,979. Basic ethers. SANDOZ Ltd. 24 April, 1969 [29 April, 1968 (2)], No.44816/71. Divided out of 1,265,978. Heading C2C. Compounds of the general formula (wherein the R 1  's, which may be the same or different, each represent C 1-4  alkyl other than tent.-butyl or together (CH 2 ) 4  or (CH 2 ) 5 ; the R 2 's, which may be the same or different, each represent H or C 1-4  alkyl other than tent.-butyl ; Rg represents H, 3-pyridyl or a radical of the formula the R 4 's and Y's, which may be the same or different, each represent H, F, Cl, Br, C 1-4  alkyl or alkoxy, or phenyl, provided that (a) both the R 4 's = H when Rg = H, (b) not more than one of the R 4 's and Y's=Ph and (c) the R 4 's and Y's together total not more than two alkyl and/or alkoxy groups; ring A has at least one but not more than two double bonds, or has a 1-, 3- or 5-OH group or such an OH group and one double bond) and their salts are prepared by the methods described in Specification No. 1,265,978.
Patent GB-1266713-A (GB)
IPC: D06F43/00
Filed: 1969-06-03
Abstract: 1,266,713. Dyeing fabric in situ. W. H. WISDOM. 3 June, 1969, No. 27938/69. Heading D1L. A fabric is treated in situ with an aqueous solution by passage over the fabric of a device having adjacent spraying and vapour withdrawal means which respectively spray a heated aqueous solution under pressure on to a confined area of the fabric and apply a vacuum to an adjacent confined area of the liquid treated fabric to draw off vapour. Treating solution, e.g. under a pressure of between 20 and 40 psi, is conducted from a boiler (Figs. 1, 2) to the applicator and ejected through a spray nozzle 108 in the rear chamber 106 of the applicator head 92. The nozzle is connected via a conduit 112 to a shut off valve 114 provided with a lever 115 for hand control. The front chamber 104 is connected to a vacuum source via a vacuum conduit 88 (Fig. 1). The lower edge of the wall 102 between the front and rear chambers of the applicator head has spaced notches 103 to minimize the gripping action of the vacuum. The treating solution may be used alone or in a mixture with steam separately withdrawn from the boiler, valves being provided to control the ratio of solution to steam. The fabric may be first cleaned and then dyed.
Patent GB-1288795-A (GB)
IPC: H01C17/26
Filed: 1969-12-05
Abstract: 1288795 Anodizing to alter the resistance of film resistors WESTERN ELECTRIC CO Inc 5 Dec 1969 [6 Dec 1968] 59451/69 Heading C7B [Also in Division H1] A method of making the resistances of each of a pair of serially connected film resistors substantially equal to the same desired value, higher than their initial resistances, by non uniform anodization after determining which of the pair had the smaller resistance. The film resistors may be of tantalum nitride. In Fig.6, with switches 36, 41, 46, 58, 62 in position 1, an operational amplifier 63 detects whether the serial resistance of T-pad film resistor 30 is equal to or greater than a set standard resistor 42 by means of the voltage appearing between terminal B of the resistor and high value, equal, bridge resistors 52, 53. If not, as shown in flow chart of Fig.8, the timed switch control changes the above switches to position 2, when operational amplifier 57 detects which part of the resistor, AC or BC has the greater resistance by means of equal bridge resistors 54, 56, which controls the relay 59 of reversing switch 47. Depending on which portion of resistor 30 had the greater resistance, the negative or earthed side of supply 51 is connected via the reversing switch to A or B. The switches are now changed to postion 3, when the rate of anodization of the two resistance portions is determined by the above supply connection. The anodizing electrolyte placed on to the serial portion of the resistive film 31 may include a paste of sodium carboxymethyl, cellulose with À01% citric acid. Anodization continues for a fixed time e.g. 60 or 70 mcs when the switches are returned to position 1 for a recomparison of the serial resistance of the two portions with the standard resistor 42. When this serial resistance, is equal to or greater than the standard resistance the attenuation loss of the T pad resistor is compared with that of a standard resistor 74, Fig. 7. If less than the required standard, as measured by a digital volt meter 82 then the shunt portion of the resistor is anodized, see Fig. 7, until it is reached. This operation being controlled by a timer 80 operating gauged switches 80-1, 80-2, 80-3 Fig.9 (not shown) gives a flow chart for the computerized anodization of a large number of T pad film resistors on a common substrate. Fig.10 (not shown) is for the computerized control of 'fast' and 'slow' anodization rates in which a common anodizer may be used for both series and shunt resistance anodizations.
Patent GB-1288876-A (GB)
IPC: B21B45/00
Filed: 1970-05-11
Abstract: 1288876 Rolling mills MOELLER & NEUMANN GmbH 11 May 1970 [4 June 1969] 22665/70 Heading B3M Billets are fed from a furnace 2 to the first stand 5 of a rolling mill via a descaling device 4, the arrangement of the installation allowing efficient descaling to take place without the billets suffering too great a temperature loss. The billets are fed through the furnace by a pusher 7 and are ejected by a machine 3 on to a rollway 8. A cross feeder 9 moves the billets to a second rollway 10 so that they can be fed through the descaling device 4. The billets then continue on a portion 10a of the rollway which passes through an extension of the furnace, and pass to the mill 5.  If an oscillating bed furnace 14 (Fig. 3, in side elevation) is used, the billets are fed by a shoot 15 to a first rollway 16, are transferred by a chain cross feeder 18 to a second rollway 17, and are fed back through a part of the furnace 14b.
Patent GB-1289051-A (GB)
IPC: H04J3/08
Filed: 1970-01-29
Abstract: 1289051 Multiplex pulse signalling SIEMENS AG 29 Jan 1970 [30 Jan 1969] 4310/70 Heading H4L  In an arrangement for compensating for variations in transmission time in a time division multiplex link between stations, in particular PCM exchanges, the incoming signals on link Le are supplied via sequentially operated switches Sel to Se4, controlled by signals from De, to stores ZSp1 to ZSp4 and sequentially read out by switches Sa1 to Sa4 controlled by signals from Da. The control signals from De are derived from a counter Ue controlled by a synchronizing device Syn from the incoming signals so that each switch Se1 to S34 is closed for the duration of a channel time slot. Similarly the control signals from Da are derived from a counter Ua controlled by a clock pulse generator Sg defining the channel time slots at the receiving station. A comparator Vgl has one input receiving the control signal for switch Se3 and the other input receiving the control signal for switch Sal, the output A, if required, being supplied to a control input of the generator Sg. The earliest time at which read-out of a store Zp can take place is immediately after the signal has been written in and the latest time is immediately before the write-in of a further signal. With normal operation a switch Sa is operated in the second time slot after the operation of the corresponding switch Se and this allows for some variation in the relative timing of the input and output switches before either of the above limits are reached. Should delay changes occur which would exceed these limits, the comparator Vg1 is introduced so that if switches Se3 and Sal do not operate simultaneously an error signal is produced to control the generator Sg or the counter Ue. Alternatively the control signal may be produced when the operation of the switches is outside two limiting positions.
Patent GB-1289278-A (GB)
IPC: D01G15/76
Filed: 1970-06-05
Abstract: 1289278 Flat carding machines DAIWA BOSEKI K K and NAGOYA KINZOKU SHINPU K K 5 June 1970 [14 June 1969] 27427/70 Heading DIN A flat carding machine comprises an evener roller 11 in working cooperation with the main cylinder 5 and the taker-in roller 3, and a perforated plate 7 covering the underside of the taker-in roller. One end of plate 7 converges towards the taker-in roller and the other end of the plate terminates before a vertical plane passing through the taker-in roller and at a point spaced from a mote knife 8. A dash board 9 extends vertically downwardly from the end of the plate 7. The peripheral speed of the taker-in roller is higher than that of the feed roller and doffer roller, but lower than that of the cylinder roller. Preferably, the taker-in assembly also comprises a cover plate 14 and baffle board 15. The arrangement is such that an air stream PQRS carrying short fibres and dust is created. The dust and short fibres separate from the recycled air, and longer fibres are recycled under the cover plate 14. The doffer assembly (Fig. 3) preferably comprises a stripper and web rollers 21, 23 rotating more slowly than doffer 6 and rolls 26, 29. A web guide plate, cover 34 and coiler 30 are also provided. An air duct 36 removes air from under cover 34. Fixed flats 33 are provided to keep fibres on the main cylinder 5. This carding machine is capable of spinning at a rate 4-6 times that of conventional flat carding machines.
Patent GB-1289286-A (GB)
IPC: H04N5/66
Filed: 1970-03-13
Abstract: 1289286 Television RCA CORPORATION 13 March 1970 [21 March 1969] 12100/70 Heading H4F To ensure that black level clipping and clamping are effected at the same signal level the black level clipper follows the clamping device and a feedback arrangement from the clipper to the clamping device is arranged to be responsive to the back level at which the video signal is clipped to produce a suitable control signal for application to the clamping device. As shown in Fig. 1 the video signal is passed via a voltage to current converting amplifier 12 to a black level clipper 13 the output of which is converted into a video signal voltage and applied to additional processing circuits such as a gamma correction circuit. The current level at which the signal is clipped is detected by a clipping level sensor 14 which transfers any excess of the video signal cut off by the clipper to a sampler 15. Sampler 15 is pulse controlled so that its output comprises a series of pulses representative of the difference between black level of the video signal during horizontal blanking or synchronizing intervals and the, reference level of the clipper. These pulses are integrated 16 into a continuous unidirectional current which is amplified 17 to produce a control signal representative of the excess of the video signal beyond the clipping level and applied to the input terminal 11 of the system to clamp the blanking intervals of the video signal at a level corresponding to the clipping level of clipper 13. A detailed transistorized circuit arrangement for this system is described in detail with respect to Fig. 2 (not shown), in which adjustment of the black level may be effected by adding differentially some of the sampling pulse applied to sampler 15 to the amplifier 12.
Patent GB-1289526-A (GB)
IPC: C08G77/06
Filed: 1969-04-18
Abstract: 1289526 Carbanion-polymerization of cyclic organosiloxanes DOW CORNING Ltd 15 April 1970 [18 April 1969] 19879/69 Headings C3P and C3T An organopolysiloxane is obtained by (1) polymerizing in the presence of a carbanion-producing initiator a cyclic organosiloxane [R 2 SiO] n , wherein each R is H or a methyl, phenyl, vinyl or CF 3 -CH 2 -CH 2 - radical and n is 3, 4 or 5, not more than 50% of the substituents R being H, and (2) reacting the product with a silane R<SP>1</SP> 2 R<SP>11</SP>SiX, wherein each R<SP>1</SP> is a C 1-4  alkyl or alkenyl radical or a phenyl radical, R<SP>11</SP> is an alkyl radical of at least 5 C atoms, and X is Cl, Br or I. Suitable initiators include the alkali metals and their hydrocarbon derivatives and complexes; a solvent, e.g. tetrahydrofuran, tetrahydropyran, dioxan, diethoxyethane dimethyl acetamide, dimethyl formamide or dimethyl sulphoxide, is preferably used; the amount of initiator is preferably such as to give a molecular weight of 400-40,000. The silane is added when the desired molecular weight is reached; it will react with one or both ends of the polymer according to the initiator, butyl lithium, for instance giving a monofunctional polymer, an alkali metal giving a difunctional polymer. In the example butyl lithium is used to polymerize hexamethylcyclotrisiloxane in tetrahydrofuran at 22‹ C.; after 2 hrs. dimethyldecylchlorosilane in benzene is added. The product, precipitated by addition of methanol is When 1% by weight of this is incorporated into polyethylene or polystyrene, reduced solid surface tension is observed.
Patent GB-1290884-A (GB)
IPC: B60K17/10
Filed: 1969-10-31
Abstract: 1290884 Hydrostatic transmission SALOPIAN-KENNETH HUDSON Ltd 12 Jan 1971 [31 Oct 1969] 53511/69 Heading F2D An hydrostatic transmission for a machine or, as shown, a sugar cane harvester, comprises a pair of engine-driven swashplate pumps 10 connected to drive individual wheel-mounted motors 3 for locomotion and steering, the pumps being controlled by pedals 15 connected to control arms 13 which may be locked in their neutral positions, to avoid unintentional actuation, by latches 17 pivoted at 23 so that on turning the latch through 180 degrees a notch 24 in a flange 19 straddles the arm 13 to prevent movement thereof.
Patent GB-1290994-A (GB)
IPC: C11D7/28
Filed: 1971-04-19
Abstract: 1290994 Stabilized trichloroethane compositions PPG INDUSTRIES Inc 19 April 1971 [4 March 1970] 23040/71 Heading C5D [Also in Division C2] A composition for stabilizing 1,1,1-tri-chloroethane comprises a 1,3-dioxolane or 1,4-dioxane and a C 1-7  hydrazone of an aliphatic aldehyde. The hydrazone may be acetaldehyde N,N-dimethyl hydrazone. In examples, the stabilized solvent composition also contains nitromethane, butylene oxide, methyl ethyl ketone and n-propanol.