baber/WOPTO huggingface dataset:
Patent GB-1444746-A (GB)
Title: Circuit for reducing pulse-type noise in telecommunications circuits
IPC: H04B/
Filed: 1973-10-24
Abstract: 1444746 Limiters SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 24 Oct 1973 [30 Jan 1973] 49409/73 Heading H3T A circuit for use in a radio receiver for reduction of pulse noise in telecommunication signals comprising a biasing circuit, i.e. resistors R2-R5, providing first and second biasing voltages when connected to a D.C. source, a transistor TS 1  whose base is connected to the biasing circuit to receive the first biasing voltage and whose emitter is connected via a resistor R1 to receive the second biasing voltage, the polarities of and difference between the two biasing voltages being arranged to drive a current through the resistor R 1 so as to saturate the transistor TS 1 , and receiving means, i.e. capacitor C5 and diode D1 arranged to produce unipolar A.C. signals and connected to an input of the circuit and to the biasing circuit so as to superimpose the unipolar signals on the first biasing voltage, the polarity of the unipolar signals being such as to reduce the potential difference between the base and emitter of the transistor TS 1  so that pulse noise signals of sufficient amplitude cut off the transistor, whose collector is floating to D.C. and connected via an isolation capacitor C2 to the output of the circuit. In the embodiment a further capacitor Cl is connected between the collector of the transistor and earth, while the voltage at the join of resistors R3, R4 is applied to one input of a differential amplifier Al, the other input being derived from the emitter of transistor TS 1 ; the output from amplifier Al constitutes an automatic gain control voltage.
Patent GB-1283260-A (GB)
Title: Improvements relating to gas burners
Inventor: NASH DENVILLE
IPC: F23D14/04
Filed: 1970-10-17
Abstract: 1283260 Gas burners D NASH 17 Oct 1970 49413/70 Heading F4T A gas burner comprises a body part 11 provided with an elongate bore 14, and an insert part 12 received in the bore and having a portion projecting out of the bore, this portion cooperating with a flat face 18 of the body part to define a gas nozzle, the flat face 18 lying in a plane substantially containing the bore axis A rebate 31 in the insert part, together with the face 18, form the nozzle. The insert part and defining wall of the bore 14 are cylindrical and shoulders 20, 29 serve to locate the parts axially. Immediately underlying the nozzle the insert and body parts are shaped to form either a partspherical surface, as shown in Fig. 4, or a conical surface.
Patent GB-1139049-A (GB)
Title: Improvements in or relating to a high frequency heating system for producing a plasma by induction heating
IPC: H05B6/04
Filed: 1966-11-09
Abstract: 1,139,049. Induction heated plasma. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 9 Nov., 1966 [12 Nov., 1965], No. 50129/66. Heading H5H. The inductor 4 for producing an inductive plasma is supplied from an H.F. generator 1 via a coupling coil 2 and capacitors 3, 5, the inductor 4 and the capacitors (which may be of equal value) forming a resonant circuit.
Patent GB-1313556-A (GB)
Title: Repeat spacing mechanism for typewriters
IPC: B41J25/12
Filed: 1970-10-22
Abstract: 1313556 Typewriters BROTHER KOGYO KK 22 Oct 1970 [24 Oct 1969] 50317/70 Heading B6F Letter spacing escapement mechanism in a typewriter includes a repeat-spacing key 55 whereby the platen carriage is repeatedly stepped while the key is depressed. The key is linked to a resilient member 46 such that when the key is depressed the member 46 engages an arm 18a of a feed pawl 18 to urge a nose 18c thereof into engagement with an escapement wheel 16, a keep pawl 19 being disengaged from the wheel 16 by a stop 18f engaging an arm 19c. The escapement wheel 16 is thus permitted to rotate half a toothpitch under the urge of a spring drum 33, until a tooth of the wheel 16 engages the nose 18c. The impact urges the nose out of engagement with the tooth, stressing the resilient member 46 and bringing the keep pawl 19 back into operative position. The resilient member 46 then urges the pawl 18 back into engagement with the wheel 16 for a repeat spacing cycle. In normal operation, a space bar 45 acts through a lever 38 or a tyne key (not shown) through a universal lever 3À7 to rock an actuator lever 24 to rock the pawl 18, impact disengagement being prevented by positive engagement between the lever 24 and arm 18d of the pawl 18. The resilient member 46 comprises a pivotable wire having an inertia increasing weight 49 at its free end, the other end being connected to a rod 50 coupled to the key 55.
Patent GB-1483370-A (GB)
Title: Sheet stripping device
IPC: G03G15/14
Filed: 1974-11-20
Abstract: 1483370 Stripping sheets XEROX CORP 20 Nov 1974 50317/74 Heading B8R A sheet stripping device comprises a fringe 56  pivoted at 54 and biased against a sheet conveyer 20 by an over-centre spring 72. The sheet engaging portion 60 of the finger is positioned upstream of the pivot point such that the finger will be moved away from the conveyer surface once it has been engaged by a sheet. The spring 72 serves rapidly to pull the finger  out of the path of the sheet once the sheet has been stripped from the conveyer. Surface 46 on a support for the finger may assist in removing the sheet from the notch in the finger.  A movable stop 90 arrests the finger after release of the sheet and is adapted to restore the finger to its initial position. A further movable stop 95 slows the finger down as it approaches its initial position in contact with the conveyer. A plurality of such fingers may be arranged axially of the drum conveyer 20 which may be the xerographic drum of a copying machine. The single notch on the finger may be replaced by a notched wheel.
Patent GB-1072070-A (GB)
Title: Process for the modification of polyamides
Inventor: JANSCH MANFRED
IPC: D01F6/60
Filed: 1964-12-14
Abstract: Polyamide fibres or threads are modified by treatment with a carboxylic acid chloride in a swelling agent which is dimethyl formamide, dimethyl sulphoxide or pyridine and in the presence of a basic catalyst.  When pyridine is used it may function both as swelling agent and as basic catalyst.  The treatment is stated to acylate the peptide groups as well as the terminal NH2 groups of synthetic polyamides, e.g. polycaprolactam.  Specified acid chlorides are stearoyl, benzoyl, phthaloyl, acetyl and nitrobenzoyl.  Specified basic catalysts are sodium carbonate and hydroxide and t.-amines.
Patent GB-1060629-A (GB)
Title: Improved endotracheal cuff
IPC: A61M16/04
Filed: 1964-12-15
Abstract: 1,060,629. Endotracheal catheters. OSTAP EUSTACHIUS BARAN. Dec. 15, 1964, No. 50976/64. Headings ASR and A5T. An endotracheal catheter or tube comprises a tube K with inflatable cuffs D and E. The cuffs may be secured directly to a recess R in the tube K or they may be secured to a tubular member through which tube K is passed. The outer cuff D is perforated and may be connected to a source of anaesthetic gas by tubes S' and S and the inner cuff may be connected to a source of air by tubes T' and T. Tubes S' and T' lie in the wall of tube K.
Patent GB-1291506-A (GB)
Title: An improved fastener made of sheet metal
Inventor: POIVET HENRI
IPC: B60J10/265
Filed: 1970-10-27
Abstract: 1291506 Clips A RAYMOND 27 Oct 1970 [28 Oct 1969] 51030/70 Heading E2B A fastener 10 is made of sheet metal, has part spherical protuberances 12, 13, 14 and 15 formed in a plate 11 thereof, a tongue 16 which extends beyond one end of the plate and has a lug 19 sheared and bent therefrom, is provided with slots 17 and 18, and an offset portion 20. The tongue 16 and the portion 20 are on the side of the fastener remote from the protuberances 12, 13, 14 and 15 and the lug 19 is directed towards the plate 11 as shown in Fig. 3. The fastener may be used to attach a moulding 21 to a vehicle framework 22 so as to hide a gap formed between the framework 22 and a windscreen panel 23. The latter is attached to the framework 22 by means of a sealing strip 24 and the moulding 21 has a flange 25 which bears against the windscreen panel 23 and a flange 26 which bears against the framework 22. The plate 11 of the fastener 10 is welded to the framework 22 at the protuberances 12, 13, 14 and 15. The flange 26 of the moulding 21 is inserted between the tongue 16 and its lug 19, the tongue being urged in a direction away from the plate 11. The resiliency of the tongue 16 then clamps the flange 26 against the framework 22 and also causes the flange 25 of the moulding to be urged against the windscreen panel 23. In a modification a fastener 10a, Fig. 4, has a portion 20a which is formed into a clip 30 to grip a portion 22a of the framework 22 and thus position the fastener 10a prior to the welding operation.
Patent GB-1479915-A (GB)
Title: Process for the treatment of flue gase
IPC: B01D53/50
Filed: 1974-11-26
Abstract: 1479915 SO 2  and SO 3  removal from gases MONSANTO CO 26 Nov 1974 51151/74 Addition to 1393438 Heading C1A The process of the parent Specification is disclosed, but with variations in (i) the concentration and pH values of the amine solutions used in the gas-scrubbing, (ii) the amount of Ca<SP>++</SP> ions used to precipitate SO 3 <SP>--</SP> as CaSO 3 , and (iii) the pH values of the resultant supernatant liquor, both before and after treatment with Ca(OH) 2  or CaO.
Patent GB-1155088-A (GB)
Title: Improvements in Fluoroscopy
Inventor: PALTI YORAM
IPC: G01N23/04
Filed: 1965-12-03
Abstract: 1,155,088. Apparatus for X-ray fluoroscopy. YISSUM RESEARCH DEVELOPMENT CO. 2 Dec., 1966 [3 Dec., 1965], No. 51446/65. Heading H5R. In an X-ray fluoroscope, the source of X-rays is arranged to emit X-rays intermittently at an adjustable repetition frequency of from 75- 150 times/second in the direction of the fluorescent screen. Preferably, the source is an X-ray tube fitted with a control electrode, e.g. a grid, to render the generation of the X-rays intermittent. Alternatively, the X-ray source may be provided with a mechanical shutter to interrupt the X-ray beam. The repetition frequency, the time fraction for which the X- rays are emitted, and their intensity is preferably variable. The duration of the emission is preferably from 0.3 to 3 milliseconds. The apparatus may be equipped with means for measuring the rate at which radiation is being received through the screen. The apparatus may be used for examining castings and welds, and the apparatus is adjusted so that the operator sees a flickerless fluorescent image of adequate brightness.
Patent GB-1080608-A (GB)
Title: Improvements in or relating to an apparatus for cutting through the ankle joint of a leg of the carcass of a bird suspended by the foot of this leg, said apparatus forming part of an installation for processing slaughtered poultry
IPC: A22C21/00
Filed: 1965-12-03
Abstract: 1,080,608. Removing feet from bird carcasses. GEBR. STORK & CO.'S APPARATENFABRIEK N.V. Dec. 3, 1965 [Dec. 15, 1964], No. 51499/65. Heading A2U. In apparatus for removing feet from the carcasses of birds, particularly externally cleaned or plucked poultry, a carcass 17 is. suspended, by the foot of one of its legs 16, from a shackle 15 depending from an overhead, travelling; endless conveyer 14, andthetibia portion of the leg is brought between the periphery of a rotating disc 3, provided with recesses 4, and one flight of a flexible, endless belt 6, Fig. 2 (not shown) travelling around a wheel 8 and another wheel. The said flight co-operates with the disc 3, along substantially one quarter of its circumference, and holds said tibia portion of the leg, in a recss 4, against a cylindrical flange 13 depending from. the disc 3. The ankle joint of said leg is thus carried between a rotating wheel 10, having upwardly chamfered peripheral teeth, and a rotating disc 11, bevelled around its lower periphery, so that the ankle joint is broken and its ligaments are stretched. The legaments are then cut by a knife 36. The severed foot, including the metatarsus, is released from its shackle 15 and discharged from the apparatus. The footless carcass falls through a discharge shoot 29. The wheel 10 is secured to the top of a shaft 28, on which the wheel 8 is freely mounted. The shaft 28 and a shaft 25, on which the disc 3 is secured, are driven, by reduction drives 23 and 24, from an electric motor 22. The disc 11 is secured to a shaft 12, which is slightly spaced from the shaft 25 on the side away from the belt 6. A roller 20 secured to the disc 11 slidably engages a slot in the disc 3, which thus drives the disc 11, and, through a torsionfree coupling 19, the driving wheel 18 of the overhead conveyer 14.
Patent GB-1408189-A (GB)
Title: Isomerisation of unsaturated esters
IPC: C07B61/00
Filed: 1972-11-10
Abstract: 1408189 Isomerization of glycerides HOECHST AG 10 Nov 1972 [10 Nov 1971 13 Oct 1972] 52090/72 Heading C5C [Also in Division C2] Glycerides are isomerized to compounds with conjugated double bonds at a temperature range of 0‹ to 100‹ C. in the presence of at least 0À8% by weight of an alkaline reacting metal alcoholate of a monohydric alcohol and a strongly polar apiotic solvent the weight ratio of solvent to ester being at least 0À5 : 1. The alcoholate weight ratio is calculated as potassium methylate based on the ester. Alkali and alkaline earth metal and zinc alcoholates are used and suitable solvents are dimethylsulphoxide, dimethylformamide, dimethylacetamide, ethyleneglycol diethylether, tetramethyl urea, tetramethylene sulphone, N-methylpyrrolidine, hexamethylphosphoric acid triamide, cyclohexanone, isophorone, acetophenone and ethylene carbonate. Examples describe the treatment of soya, linseed and sunflower seed oils.
Patent GB-1550575-A (GB)
Title: Implants
IPC: A61L27/32
Filed: 1977-12-15
Abstract: Implants for bones, joints or tooth roots having sufficient mechanical strength, excellent compatibility with living tissues and other advantageous properties can be obtained by thermally spraying a mixture of ceramics and hydroxyapatite onto a shaped core which is made of ceramics, thereby forming a coating layer of the mixture around the surface of the core.
Patent GB-1535424-A (GB)
Title: Apparatus for measuring the density of a flowing fluid
IPC: G01F1/80
Filed: 1976-03-12
Abstract: 1535424 Measuring density electrically ELDEC CORP 12 March 1976 [9 July 1975] 52788/77 Divided out of 1535423 Heading G1N An apparatus for measuring the density of a flowing fluid includes a turbine flowmeter generating a sinusoidal signal of frequency proportional to the volumetric flow-rate of the fluid and an angular momentum responsive impeller assembly 120 and flow drum 98 generating at output connections 116, 118 and 140, 142 a train of pulses having a phase difference or pulse separation proportional to the mass flow-rate of the fluid. The volumetric signal is fed to frequency-D.C. converter 218, the output from which feeds an averaging filter 270 of which the output feeds the inverting input of a summing amplifier 224. The signal at the output of the error amplifier 228 is inversely proportional to the volumetric flow-rate such that its D.C. level increases as volumetric flowrate decreases and vice versa. The other connections are as shown in Figure 3. The pulse shaper 230 generates a variable pulse width signal from the input signals representing mass flow-rate on input 212 and which is applied with the output signal from the error amplifier 228 to the inputs of an averaging filter 234. This filter provides a D.C. output signal of which the amplitude is a fraction of the D.C. input on 236 determined by the duration of the pulses at input 233 relative to the pulse interval. Thus the filter output is proportional to the mass flow-rate divided by the volume flow-rate i.e. density.
Patent GB-1221709-A (GB)
Title: Production of olefins
Inventor: GREBBELL JOHN
IPC: C07C2/24
Filed: 1968-11-08
Abstract: 1,221,709. Heptenes. BRITISH PETROLEUM CO. Ltd. 19 Aug., 1969 [8 Nov., 1968], No. 52951/68. Heading C5E. Heptenes are produced by a process comprising the steps of (1) co-dimerizing ethylene and propylene in the presence of a catalyst comprising a supported alkali metal or alkali metal hydride to form pentenes, and (2) codimerizing the pentenes from step (1) with ethylene in the presence of a catalyst comprising an alkali metal or alkali metal hydride deposited on alumina having a surface area above 25 m<SP>2</SP>/g. The preferred catalyst for step (1) is sodium or anhydrous K 2 CO 3 . Alternatively, the step (2) catalyst may also be used in step (1), in which case the products from step (1) may be recycled over the catalyst to cause step (2).
Patent GB-1269948-A (GB)
Title: Improvements relating to haul-off machines
Inventor: POSTINS JOHN GEORGE
IPC: B29C48/355
Filed: 1968-11-09
Abstract: 1,269,948. Endless conveyers for plastics extrudate. MIDLAND INDUSTRIES Ltd. 3 Nov., 1969 [9 Nov., 1968], No. 53185/68. Heading B8A. In haul-off machines comprising a supporting frame by which are supported a plurality of gripping means 22, 24, 26, 28 arranged to grip an article 10 (e.g. plastics extrudate), in an opening between them, means is provided to adjust the gripping means on the frame, and there are driving means to drive the gripping means and thereby to advance the article. The supporting frame includes two rectilinear slideway members 16, 18 disposed relatively transversely, at. least one gripping means slidably mounted on each of the slideway members so as to be adjustable therealong, driving means 22, 24, 26, 28 each comprising a carriage mounting an endless gripping belt (52) (Fig. 2, not shown) formed with integral side-by-side V-belts, and driven by a multi V-groove roller (54). The tension of each belt 52 is adjustable at 60. The drive to the belts is via a variable speed gear-box (88) adjustable at (89). The spacing of the gripping means 26, 28 is adjusted by a screw operating handle 51. The height of a carriage 32 carrying the gripping means 24 is adjusted by a handle 46. The height of a carriage 30 carrying the gripping means 22 is adjusted by the action of an hydraulic cylinder 40, a screw 38 actuated by a nut 41 being rotated for fine adjustment. For dealing with articles of small cross-section, attachment (118) (Fig. 7, not shown) is secured to one or more of the means 22, 24, 26, 28.
Patent GB-1450213-A (GB)
Title: Polyurethane filaments
IPC: D01F6/70
Filed: 1973-11-16
Abstract: 1450213 Treating polyurethane filaments AKZO N V 16 Nov 1973 [18 Nov 1972] 53199/73 Heading B5B Polyurethane filaments which contain at least 100 meg/kg of primary and/or secondary amino groups are treated with polyisocyanate and then heat-treated at at least 100‹C to improve their strength and stability. Preferably the polyurethane is derived from a polyester which has free-OH groups. This is reacted with a polyisocyanate and resulting free isocyanate groups reacted with a polyamine, preferably ethylene diamine, to give the required polyurethane. In Examples the polyurethane having free isocyanate groups is spun into filaments, and reacted simultaneously with the polyamine, by extrusion of molten polymer into a spinning bath of polyamine in a hydrocarbon solvent. During treatment of the amino polyurethane with polyisocyanate, the filaments may be stretched. The isocyanate may be applied by passing the filaments through a bath of it in a solvent or by passing them over a roller which dips into the pure isocyanate.
Patent GB-1114185-A (GB)
Title: Location indicating apparatus including a map
IPC: G09B29/10
Filed: 1965-12-15
Abstract: 1,114,185. Educational appliances &c. P. JACOBSEN. 15 Dec., 1965 [16 Dec., 1964], No. 53296/65. Heading G5G. A map comprises a substantially circular sheet 20 having representations on both sides thereof, and a pivoted indicator 22 coacting with both sides, the sheet having radii drawn thereon thus defining sectors A-P, and the indicator being divided into numbered sections so that, e.g. a street denoted by co-ordinates, e.g. A 5, can be located. One side of the map carries a street plan whilst the other side (Fig. 2, not shown), carries representations at corresponding positions of places of interest, e.g. stadium, hospital, and railway stations.
Patent GB-1204324-A (GB)
Title: Improvements in and relating to filters for liquid and gaseous fluids
IPC: B01D35/06
Filed: 1966-11-30
Abstract: 1,204,324. Magnetic and electrostatic separators. R. J. STEVENS. 22 Nov., 1967 [30 Nov., 1966], No. 53619/66. Heading B2J. A filter comprises a container 11 for a mass of magnetisable steel balls, disposed in the field of an electromagnet 17. When the balls are demagnetized they are agitated by a flow of back-washing fluid. The elements may have a resin coating which is stated to provide some electrostatic attraction for non-magnetic particles in a fluid being filtered. An adhesive coating may also be used, and a copper coating to inhibit algae. A perforated-walled basket 11, Fig. 4, contains the charge of balls 22 in the space between its concentric walls 12, 13. The balls cohere under the influence of the electromagnet 17 which has poles 17, 19. Liquid flows from an inlet pipe 9 to an outlet pipe 28. The filter is back-washed, or cleaned by a liquid jet or gas jet, via line 29 and jet orifices 29A in a plate 15 which has a sliding fit in a hole in one pole 16 of the electromagnet. The filter may be incorporated in a fuel line.
Patent GB-1180373-A (GB)
Title: Data Processing Apparatus
IPC: G06F15/16
Filed: 1968-11-14
Abstract: 1,180,373. Data processing. INTERNATIONAL BUSINESS MACHINES CORP. 14 Nov., 1968 [18 Dec., 1967], No. 53983/68. Heading G4A. Data processing apparatus includes a plurality of active units (e.g. processors) capable of executing tasks, means for placing tasks for execution from different jobs in a queue in chronological order, tasks being allocated from the queue to the active units in time slots of substantially equal duration, each task being guaranteed at least one time slot during a period equal to a given number k of time slots following its request. Tasks from a plurality of terminals are entered into a task queue by inserting the number of the terminal into the queue, and passed from the queue, in the order of entry, each to the first processor to finish the task it is executing, except that processors are interrupted, further work on their present tasks postponed and new tasks taken from the queue as necessary to prevent any task waiting more than k time slots for its first time slot of execution. A "demand interrupt" circular list has a plurality of stored items, initially all zero, relating to respective time slots and addressable by IN, INTERRUPT, UNFILLED and EXECUTE counters. The IN counter points to the item for the current time slot, and this item is incremented every time a task is added to the queue, except that if the item reaches n, the number of processors, any further incrementing is done to the next earlier item in the list not already at n, this item being pointed to by the UNFILLED counter. The IN and INTERRUPT counters are incremented every time slot (thus pointing to the next "later" item in the list). The INTERRUPT counter always points to a time slot item which is k time slot items earlier in the list than the current time slot item. The EXECUTE counter points to the earliest time slot item which is non-zero and this item is decremented every time a task is passed from the queue to a processor. When the INTERRUPT counter points to a non-zero item, x processors are interrupted to take the next x tasks from the queue, where x is the value of the non-zero item. The task queue is held in registers addressable by TS IN and TS OUT counters pointing to the tail and head of the queue respectively. The number of processors in the system may be altered during operation.