baber/WOPTO huggingface dataset:
Patent GB-1323717-A (GB)
Title: Timing devices
IPC: G04C3/06
Filed: 1970-10-01
Abstract: 1323717 Electronic watches; controlling amplitude of mechanical oscillation JAEGER S A 1 Oct 1970 [2 Oct 1969 14 April 1970] 46788/70 Headings G3R and G3T In an electronic watch wherein a balance wheel oscillator is electro-magnetically maintained, the balance wheel comprises a pair of spaced discs 1, Fig. 1a, one disc carrying a pair of ferrite permanent magnets 2, 2'. The magnets co-operate with driving, control and regulating windings 3, 4, 5 respectively, co-axially disposed and fixed relative to the balance wheel as shown Fig. 1. The coils are connected in a drive circuit Fig. 4, in which a transistor 11 is switched ON by positive peaks of voltage induced in control winding 4 by movement of the magnets relative thereto, and passes current pulses to the drive winding 3. A cyclic voltage is induced in regulating winding 5 proportional to the amplitude of oscillation of the wheel and together with the induced voltage in winding 4 switches OFF a transistor 15 when the oscillation amplitude reaches a predetermined value, e.g. 220 degrees. This causes the mean voltage across a capacitor 13 and hence the bias of transistor 11 to vary in accordance with the amplitude of oscillation, the voltage increasing with decreased oscillation amplitude and vice versa. The result is that the greater the oscillation amplitude the smaller will be the drive current fed in each cycle to drive winding 3 and vice versa so that substantially constant amplitude is maintained. Alternative winding arrangements are described with reference to Figs. 5, 6, 7, 8 (not shown). In the arrangement Fig. 8 (not shown) for example the regulating winding 5 has a plurality of taps any one of which may be selected for connection to the base of transistor 15 thereby to determine the maximum amplitude of oscillation, e. g. in a range 200 degrees to 250 degrees. To reduce temperature dependent variations the magnets (ferrite) have negative temperature co-efficient and similar to that of the base/emitter junction of transistor 15 which is of silicon.
Patent GB-1018986-A (GB)
Title: A process for the manufacture of novel nucleosides
IPC: C07H19/12
Filed: 1963-11-28
Abstract: The invention comprises the compounds 31,51-di - O - p - toluyl - 21 - deoxy - 6 - azacytidine, 21 - deoxy - 6 - azacytidine, 5 - methyl - 21 - deoxy - 6 - azacytidine, 21 - deoxy - 6 - aza - a  - cytidine; and the preparation of nucleosides of formula <FORM:1018986/C2/1> wherein R2 is hydrogen, alkyl (1-5 C) or aralkyl, and R3 is deoxyribosyl or peracyldeoxy ribosyl, by reacting a compound of formula <FORM:1018986/C2/2> (wherein R1 is halogen, mercapto, alkylmercapto or aralkylmercapto) with ammonia (deacylation may occur simultaneously).
Patent GB-1285918-A (GB)
Title: Process for obtaining a sponge-textured thread from natural silk thread, and textile articles resulting therefrom
Inventor: HILAIRE MARCEL MARIUS ADRIEN
IPC: D02G1/02
Filed: 1969-09-25
Abstract: 1285918 Texturing yarns M M A HILAIRE 25 Sept 1969 [25 Sept 1968] 47180/69 Headings D1F D1W A sponge-textured or expanded silk thread is produced by degumming a natural silk thread so as to release all the strands of the thread so that they participate in a bulking process which comprises twisting it and fixing the twist by thermal or steam treatment, untwisting and subsequently placing the thread in a humid medium. The humid treatment is preferably carried out hot and may be effected before or after weaving or knitting of the thread. The thread may be twisted to 2,000- 5,000 turns per metre, fixed at temperatures up to 140‹C and then untwisted to almost zero twist before the humid treatment.
Patent GB-1335619-A (GB)
Title: One component non toxic self-extinguishing silicone elastomer
IPC: C08L83/04
Filed: 1971-10-12
Abstract: 1335619 Fire-resistant RTV silicone elastomer compositions DOW CORNING CORP 12 Oct 1971 [15 July 1971] 47396/71 Heading C3T A fire-resistant room temperature vulcanizable (RTV) silicone elastomer composition comprises by weight (a) 100 parts of a polydiorganosiloxane of viscosity 1000-300,000 cs./25‹C. wherein the organic radicals are 0-10% phenyl, 0-2% vinyl and the rest methyl radicals, and the end groups are OH or X n R 3-n SiO 0À5  where R is Vi, Me, Et or Ph, n is 2 or 3, and X is an acetoxy radical or a ketoxime radical R<SP>1</SP>R<SP>11</SP>C=N-O-, where R<SP>1</SP> and R<SP>11</SP> are each Me or Et, (b) 5-150 parts of SiO 2  or TiO 2 , (c) 5-20 parts of a silane RSiY 3  wherein R is as above and Y is an acetoxy radical or a ketoxime radical as above, being acetoxy when X is acetoxy, ketoxime when X is ketoxime, (d) 0À5-4 parts of a carbon black of at least 10 m.<SP>2</SP>/g. surface area and 0À005-0À20 microns particle size, and (e) 1-150 ppm. of Pt in the form of a compound, and is free of S or compounds of Sn, Bi, Cu, Hg and S. In examples RTV compositions are prepared from a polydimethylsiloxane diol, ground quartz and optionally fume silica and fume titania, optional polyphenylmethylsiloxane diol, vinyl tri- (methylethylketoximo) silane or vinyl triacetoxysilane, optional ZnO, carbon black and Pt as H 2 PtCl 6  in a polydimethylsiloxane oil. Uses.-Insulation, encapsulation, sealants.
Patent GB-1358653-A (GB)
Title: System for use with a cutting sheel
IPC: B24B55/06
Filed: 1972-10-16
Abstract: 1358653 Grinding HAWLEY MFG CORP 16 Oct 1972 47604/72 Heading B3D [Also in Division F4] Dust &c. generated at the periphery of the cutting wheel 22 of, for example, a swing grinder 20 is removed by an arrangement comprising an air scoop 33 connected to articulated conduit means 34 communicating with the interior of a continuously evacuated elongated duct 30 via a car 32 movable along the duct; the interior of the car 32 defines a chamber and carries equipment so co-operative with a flexible web 31 closing one wall of the duct that the chamber is always in open communication with the duct interior. The conduit means comprises a number of sections 35, 36, 38, 40, 42 and 44 interconnected by swivel connections 37, 39, 41, 43 and 46. The scoop 33 is suitably supported from the carriage 21 with its mouth tangential to the wheel 22 which is driven by a motor 24 and is provided with a guard 23. The swing grinder is suspended from above via a hanger rod 26 and ring 25, 27 whereby an operator may suitably rotate or reciprocate the carriage 2 and hence the wheel 22 via handle bar 28 to bring it into co-operative engagement with a workpiece 29. The scoop may be of rectangular cross-section (see Figs. 7 and 8, not shown) and comprises a plurality of sections of progressively increasing effective cross-sectional capacity.
Patent GB-1069097-A (GB)
Title: Continuous casting installation
IPC: B22D11/14
Filed: 1963-12-03
Abstract: 1,069,097. Continuous casting-machines. MANNESMANN A.G. Dec. 3, 1963 [Dec. 3, 19621, No. 47799/63. Heading B3F. In a continuous casting installation the mechanical means used directly for the formation, support and conveyance of the casting at one side of the normal path of the casting, e.g. one mould side, roller section 4<SP>1</SP> and conveyer roll section 5<SP>1</SP> are stationary. whereas the corresponding means on the other side of the casting path are adjustable relatively to the stationary means for adaptation to the actual casting dimensions, and the distributer 1 is adjustably positioned according to the size of the casting to be made. The starter bar 9 is also located with reference to the first side of the casting path and has an interchangeable head 11.
Patent GB-1245935-A (GB)
Title: Alpha-halo substituted asymmetrical diacyl peroxides
IPC: C08F4/34
Filed: 1968-10-09
Abstract: 1,245,935. Polymerization of vinyl chloride. ARGUS CHEMICAL CORP. 9 Oct., 1968 [16 Oct., 1967], No. 47938/68. Heading C3P. [Also in Division C2] Vinyl chloride is polymerized using as initiator an organic peroxide of formula where R is an organic radical having up to 20 carbon atoms provided that the atom bonded directly to the adjacent carbonyl group is free from halogen substitution, each of X and Y is a chlorine, bromine, or hydrogen atom provided at least one of X and Y is a chlorine or bromine atom, and n is a positive integer from 1 to 18. Specified peroxides are acetyl 2-chloro-butyryl, acetyl 2-chlorodecanoyl, acetyl 2-bromo-butyryl, acetyl -2-bromohexadecanoyl, and m-chlorobenzyl 2-chloro-butyryl, peroxides.
Patent GB-1065305-A (GB)
Title: Roller bristle carrier
IPC: A46B13/00
Filed: 1965-11-12
Abstract: 1,065,305. Rotary brushes. T. A. V. BRODD. Nov. 12, 1965, No. 48234/65. Heading A4K. The turns of a helical channel-shaped bristle carrier 1 are supported in notches in parallel bars 3, which slide into grooves in the brush driving roller of a road-sweeping machine. When the bristles are worn out, the carrier is discarded as a whole and a new brush fitted into the grooves. The bristles may be retained in the channel by a wire wound therearound.
Patent GB-1088578-A (GB)
Title: A method for determining the surface area of non-uniformly shaped articles
IPC: G01N15/08
Filed: 1964-11-27
Abstract: 1,088,578. Measuring surface area electrically. ATLAS MESS-UND ANALYSENTECHNIK G.m.b.H. Nov. 27, 1964 [Dec. 3, 1963], No.48322/64. Heading G1N. The surface area of a sample 1 of material such as activated charcoal, is determined by passing a mixture of inert gases from a vessel 2 over the sample 1, one of the gases being adsorbed by the material, and then measuring the partial pressures of the gases when they have passed into a chamber 7, the reduction in partial pressure of the adsorbed gas representing the amount which is absorbed and hence the surface area of the material. A mixture of equal parts of argon and helium flows from the container 2 via a valve 4, through a sample chamber in which the charcoal adsorbs part of the argon. The partial pressure of the argon is measured in an ionization chamber 8, in which the voltage between a cathode 10 and the chamber 8 is sufficient to ionize the argon but not the helium; and the sum of the two partial pressures is measured in an ionization chamber 9 in which the voltage is sufficient to ionize both gases. The resulting ionization currents J1, J2, are fed to a bridge circuit where corresponding voltages U1 and U2 are developed. A difference voltage U=U2/d-U1 is derived, where d represents predetermined constants of the system, and this differential voltage U is proportional to the drop in argon pressure due to adsorption. From the voltage U and from other known parameters, a B. E. T. line may be drawn, from which the gas volume adsorbed may be determined, and hence the surface area of the charcoal can be calculated.
Patent GB-1152589-A (GB)
Title: Signal Path Re-Routing Arrangement.
Inventor: BLOCH CYRIL ETTIENNE
IPC: H04Q5/02
Filed: 1966-10-28
Abstract: 1,152,589. Telecommunicating repeaters. STANDARD TELEPHONES & CABLES Ltd. 28 Oct., 1966, No. 48370/66. Heading H4R. In a telecommunication system in which a master station M, Fig. 1, is in communication with any one of a number of outstations S1 to S6 via a closed loop cable system, the master station normally transmits information over links L11 to L16 and receives over links L21 to L26. The main station also transmits a pilot signal from a transmitter PT over all the links in series, the two chains being coupled by pilot coupling PC, back to a receiver PR at the main station and the outstations are provided with switching means, operable on a pilot signal condition indicating a break in one link of the system, which connects the outstations on the side of the break remote from the master station transmitter IT so that their receivers receive signals over the links L27, L26 &c. and their transmitters transmit information over the links L17, L16 &c. with the contacts A1 and A2 at the master station connecting the information receiver to link L17 and the information transmitter to L27. In addition, the master station interrogates the outstations in turn to determine where the fault lies and then causes both links beyond the last station which is operating normally to be opened. Fig. 2 shows station S4 in greater detail, signals from the master station being normally coupled from L14 through hybrid H1 and contacts C14 to the information receiver IR, while signals from the outstation transmitter IT are normally fed via contacts C23 and hybrid H2 to link L24. Pilot signal, normally present on both chains, is detected in pilot receivers PR1 and PR2 but via the logic circuit of " NOR " gates N1 and N2 the relay C is not operated. If however a break occurs in the channel feeding L14 but the pilot signal is still being received over link L25, i.e. indicating a fault in one of the links L24, L23, L22, L21, L11, L12, L13 or L14, relay C is operated and contact C13, C14, C23 and C24 change over so that the information receiver is connected to link L15 and the transmitter to link L24. At the same time the interruption of reception of the pilot tone in the receiver PR of the master station causes an automatic interrogation sequence to be started in which the master station interrogates the stations S1, S2, S3 &c. in turn until the position of the break is found, a signal is then sent to the last station which replied to the interrogation to operate the relay B so as to open the links beyond that station. Once the links have been opened at contacts B1 and B2 relay A in the master station is operated to connect the master station transmitter and receiver to communicate with the stations beyond the break via the other end of the cable loop, i.e. links 27 &c. and 17 &c.
Patent GB-1069310-A (GB)
Title: Photographic camera
IPC: G03B7/16
Filed: 1965-07-16
Abstract: 1,069,310. Photographic cameras. AGFA A. G. July 16, 1965 [July 18, 1964], No. 48528/66. Divided out of 1, 65, 137. Addition to 1, 041, 860. Heading G2A. A photographic camera as claimed in the parent Specification 1, 041, 860 has a supplementary lens (11) for the camera objective (3) which is moved into the optical path of the objective by depression of a control pin (5) upon the introduction of the foot of a flash light exposure into an accessory shoe (4). A pin (12) on a lever (9) carrying the lens (11) co-operates with a pin (13) of a shutter speed regulating device to set the shutter for a suitable exposure time e. g. 1/30 sec.
Patent GB-1353311-A (GB)
Title: Memory system
IPC: G06F12/10
Filed: 1972-10-23
Abstract: 1353311 Memory systems INTERNATIONAL BUSINESS MACHINES CORP 23 Oct 1972 [23 Dec 1971] 48655/72 Heading G4A To determine whether, in response to a virtual address 12 (Fig. 4) from, for example, a CPU, access should be made to a slow access main store or fast access buffer store, a part 16 of the address, which may correspond to a virtual address in the main store, and a part 36 of the address, which may correspond to a virtual address in the buffer store, are used as arguments in an associative search through a store 14 holding tables identifying virtual addresses with corresponding real addresses. Any resulting main store real address is used together with a further part 30 of the applied address to access the main store and any resulting buffer store real address is used together with a part 50 of the applied address to access the buffer store. As described the virtual address comprises bits representing a segment field and page field which together represent the virtual address for the main store. Additional bits representing a block are also necessary to define a virtual address for the buffer store, block and byte bits being added to a real address found by the associative search to complete the real main store address, only byte bits being added to complete the real buffer store address. In the embodiment of Fig. 5 a single associative memory 56 is used together with an input mask register 64 to determine which of the input bits are examined and an output mask register 66 to determine which bits are fed to a buffer store output register 60 and a main store output register 62. An inhibit access signal is derived on lines 84 or 86 if the address is not in the buffer or main store respectively. In the embodiment of Fig. 6 (not shown) separate associative memories 88, 90 are used for searching for the main and buffer store real addresses, each memory having an associated input and output mask register.
Patent GB-1326770-A (GB)
Title: Slagging in basic steel-making process and compositions therefor
IPC: C21C5/28
Filed: 1970-10-14
Abstract: 1326770 Slag-forming composition G & W H CORSON INC 14 Oct 1970 [15 Oct 1969] 48917/70 Heading C7D A composition for addition to a basic steelmaking process comprises a mixture of dolomite and iron oxide, the proportion of iron oxide being equivalent to that required for stoichiometric combination as Fe 2 O 3  with AcO in the dolomite to form dicalcium ferrite (2CaO Fe 2 O 3 ) and with at least a major part of the MgO to form magnesia ferrite (MgO Fe 2 O 3 ). The dolomite and the iron oxide may be finely-divided and formed into shaped bodies before charging to a furnace. The proportion of iron oxide in the mixture may be 50-80 per cent by weight. The shaped bodies may be pre-heated to react the dolomite with the iron  oxide to form dicalcium ferrite, and, optionally, further heated for form magnesio ferrite. The dolomite may be CaCO 3  MgCO 3 , CaCO 3 . MgO CaO. MgO, Ca(OH) 2 . MgO or Ca(OH) 2 . Mg(OH) 2 . The shaped bodies may contain binder, such as molasses, starch and lignins.
Patent GB-1405944-A (GB)
Title: Centrifugal fan
IPC: F04D29/42
Filed: 1972-10-25
Abstract: 1405944 Centrifugal fans KOMBINAT LUFTUND KALTETECHNIK VEB 25 Oct 1972 49157/72 Heading F1C A centrifugal fan comprises two support bases 2, 3 entering parallel to one another on a scroll-type casing 1 having two side walls each having an indentical opening 7, the angle between the discharge aperture 4 of the casing and the support bases being 45 degrees and the casing being selectively supportable on either base 2 or 3 whereby the discharge aperture faces either upwardly as shown or downwardly, and the supports for the two impeller shaft bearings (8), 9 being interchangeable between the two sides for mounting the impeller for rotation in either direction. A conical air intake 7a is fitted to one of the openings 7. An elbow 5 may be provided to turn the discharge through 45 degrees into either the horizontal or vertical direction.
Patent GB-1400318-A (GB)
Title: Continuous casting of hollow metal ingots
IPC: B22D11/08
Filed: 1973-10-23
Abstract: 1400318 Continuous casting VSESOJUZNY ORDENA LENTNA NAUCHNO - ISSLEDOVATELSKY I PROEKTNO - KONSTRUKTORSKY INSTITUT METALLURGICHESKOGO MASHINOSTROENIA and TSENTRALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT CHERNOI METALLURGII IMENI I P BARDINA 23 Oct 1973 49382/73 Heading B3F By the use of a tube 3, mounted on the dummy bar 2, to prevent the rising level of molten (ferrous) metal 5 in a cooled mould 6 from contacting a mandrel 4 when withdrawal of the bar 2 and solidifying casting 1 is begun, the casting is prevented from hanging on the mandrel. Withdrawal is started when the metal level is 20-50 mm. below the top of the tube 3.
Patent GB-1028990-A (GB)
Title: Improved device for cutting off and removing two edge strips from a web of material
IPC: D06H7/06
Filed: 1964-12-07
Abstract: 1,028,990. Tentering-machines. K. BRUCKNER. Dec. 7, 1964 [Dec. 6, 1963; May 12, 1964], No. 49641/64. Heading D1S. A device for cutting off and removing the two edge strips 1a from a web 1 of material gripped by pins of two vertically disposed pin chains 4 in a stretching, drying or setting device,comprises cutting means 6 for the two edge strips 1a disposed above each chain 4 before its reversal point and means 12, 18, 19 for removing the strips 1a remaining in the chains 4 after cutting, the removing means being disposed at the lower run of each chain 4. In one embodiment, Fig. 1, the hooked pins are mounted on blocks 2 on the chains 4. The cutting means comprises a blade 6 rotatably mounted on an arm 7 pivotable about an axis 10 so that it can be lifted out of working position. The strips 1a are cut immediately adjacent to the pins and the web 1 passes to a reeling or folding device. The strips 1a pass around reversing cogs 5 and are removed on the lower run of each chain 4 by a disc brush 12 freely rotatable on an arm 13 pivotable about an axis 16. The height of the brush 12 relative to the lower run of the chain 4 is determined by an adjustable stop 17. The strip 1a is sucked away through a nozzle 18. In an alternative embodiment, Fig. 6, the brush 12 is replaced by a pressure nozzle 19. The nozzles 18, 19 are provided with a common blower 20 whose pressure side 21 is connected to the nozzle 19 and suction side 22 to a container 23 terminating in a pipe 24 attached to the nozzle 18. The strips 1a are collected in the container 23 which can be emptied through a door 23a, Fig. 5 (not shown). A sieve 23b (also not shown) prevents the strips 1a being sucked into the blower 20. A shield 25 prevents lateral flow of the air leaving the nozzle 19 and also inlet of outside air to the nozzle 18.
Patent GB-1340399-A (GB)
Title: Apparatus for emptying cleaning and sterilizing of objects such  as bed-pans
IPC: E03D11/02
Filed: 1971-10-27
Abstract: 1340399 Washing bed-pans MACHINEFABRIEK & REPARATIEWERKPLAATS L PLEUTE & CO 27 Oct 1971 [11 Dec 1970] 49828/71 Heading A4N An apparatus 1 for emptying cleaning and sterilizing articles 6 such as bed-pans, comprises a cabinet frame with a closable inlet 19 and an outlet 18, a rotatable support 5 on which the articles are placed, spray nozzles 16, 17 respectively directed to a funnel 18 and to the inside of the articles to be cleaned, and a means for rotating said support and heating means 12, 13 located in the support. The support is supported by shafts 7, 8 mounted in bearings 9, 10 of the frame. A hand crank 11 is used to rotate the support 5 through 180‹ after locking the article 6 into said support using a member 36 and two fixing pins 37. A disc-shaped heating element 12 is used to heat the bottom of the article by conduction and a ring-shaped element 13 is used to heat the rim. A further heating element (not shown) of cylindrical shape may be used to heat the walls of the bed-pan. A resilient, electrical cable 14 is carried through the hollow shaft 8 and supplies both elements, and thermal insulation is inserted in the double wall 15 of the support. A chamber 2 is provided with the spray nozzles 16, 17 and a funnel 18 for directing away the cleansing water and pollutions. A control section 20 monitors the automatic operation of the cleaning and sterilizing process, an adjustable time mechanism or temperature sensor being utilised in order to cut off electrical power when the desired sterilization temperature is reached. A cleaning section 3, with a door 21 serving as a support for articles 28 such as sputum bottles is situated above the chamber 2. A clip 22 is biased by a leaf spring 27 so that the articles are held against the door 21 up on loading and closing the door. A spray 29 is used to clean the articles, the cleansing water and pollution draining off in the direction of the side walls so that no pollution occurs in the cleansing chamber 2.