baber/WOPTO huggingface dataset:
Patent GB-1019495-A (GB)
Title: Improvements in and relating to amplifiers for broad frequency bands
IPC: H03F1/20
Filed: 1964-04-29
Abstract: 1,019,495. Wideband amplifiers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 29, 1964 [May 2, 1963], No. 17756/64. Heading H3W. In a wideband amplifier the signal is applied through separate delay networks having the same delay times to a corresponding number of amplifying devices, the outputs of which are connected together and to a terminal network through which the output is produced. A cathode-follower 7, Fig. 4, drives amplifiers 1, 2, 3 in parallel via corresponding M-derived networks giving minimum phase distortion and comprising centre-tapped inductors 31, 32, 33 respectively, resistors 34, 35, 36 and the input capacities of the valves. The anodes are connected together, and in a simple embodiment (Fig. 3, not shown) to the supply terminal via a common inductor and resistor in series, to the join of which the output terminal is connected. In the arrangement for Fig. 4 the cathode follower 7 also drives three further amplifiers 11, 2<SP>1</SP>, 31 via M-derived networks, each comprising two series-connected centretapped inductors 51, 52; 53, 54 and 55, 56 respectively, a terminating resistor 61, 62, 63, a capacitor 57, 58, 59 and the input capacity of the valve concerned. The anodes of the valves 1, 2, 3 and 1<SP>1</SP>, 2<SP>1</SP>, 31 are connected to the centre-taps of inductors 43, 44 respectively which form with the valve output capacities and terminating resistors 45, 46 on M-derived output line supplying output terminal 50. Elements 51, 53, 55, 57, 58, 59 and also 34, 35, 36 may be omitted, the input terminals of inductors 52, 54, 56 being connected to the output ends of inductors 31, 32, 33 respectively. In another embodiment, input signal is applied to valves 7, 7<SP>1</SP> (Fig. 5) in parallel, each of which feeds two parallel connected amplifiers, e.g. 81, 82, from its cathode via M-derived filters comprising inductors, e.g. 71, 72, resistors, e.g. 91, 92, and the input capacities. Parallelconnected amplifiers, e.g. 83, 84, are similarly fed from the anode circuits of the valves 7, 7<SP>1</SP>. Each pair of valves 81, 82 and 83, 84 &c. has the anodes connected together, optionally via inductors 111, 113 &c. to drive a further valve 101, 102 &c. via an M-derived filter, the anodes of the valves 101, 101<SP>1</SP> and 102 ,  102<SP>1</SP> being paired and providing a push-pull output.
Patent GB-204143-A (GB)
Title: Improvements in and connected with weft inserting mechanism in looms for weaving
IPC: D03D47/00
Filed: 1922-06-28
Abstract: 204,143. Gabler, J. June 28, 1922. Selvedges, special, fabrics with.- The weft is inserted in loop form to the centre of the shed, then cut at the point 20 and next carried through the shed, a part being inserted in the next shed to form a selvedge at the next pick, so that both ends of the weft are doubled over and a selvedge is formed at each side of the fabric.
Patent GB-1460058-A (GB)
Title: Pharmacologically active substances obtainable from cadia ellisiana
IPC: A61K/
Filed: 1974-04-24
Abstract: 1460058 Extracts of cadia ellisiana HOECHST AG 24 April 1974 [28 April 1973 27 Aug 1973] 17873/74 Heading A5B Two hypotensive substances, one having empirical formula M.W. 357 and other defined physical parameters and the other having empirical formula M.W. 264 and other defined physical parameters, are extracted from Cadia ellisiana. The substances may be converted into their acid addition salts and may be incorporated into pharmaceutical preparations.
Patent GB-905902-A (GB)
Title: Improvements in or relating to multiple clutch mechanisms
IPC: F16D21/02
Filed: 1959-05-26
Abstract: 905,902. Friction clutches. NEW BRITAIN MACHINE CO. May 26, 1959 [May 26, 1958], No. 17988/59. Class 80 (2). Two friction clutches 13, 14 for selectively connecting two input gears 11, 12 or an input gear and a brake to an output shaft 17 have a common engaging Belleville spring 16 which normally engages one clutch 13 and common operating means 21 which disengages the one clutch 13 and transfers the spring pressure to the other clutch 14 to engage the latter. In Fig. 1 each clutch comprises a presser plate 13a, 14a and a back plate 13b, 14b fast with the shaft 17, between which plates the gears 11 or 12 are clamped by the spring 16. As shown with the clutch 13 engaged rotation of an operating lever 31 turns a member 24 relative to a rotationally fixed member 25 causing a ball 28 in a cam track 24b, 25b to axially separate the members 24, 25, the axial movement being transmitted through thrust bearings 26, 27, members 22, 23 and a pin 32 to the presser plates 13a, 14a of the clutches 13, 14 to disengage the former and engage the latter. In Fig. 3 (not shown) the clutches are replaced by multi-disc clutches, the gears being connected to one set of discs, whilst the other set is splined to the output shaft. The cam means is operated by a stationary electromagnet the armature of which is connected to one of the input gears and frictionally engages one of the cam track members, when the electromagnet is energized, to turn that member relative to the other member. The Belleville spring 16 works on the flat part of its force-deflection curve, Fig. 2 (not shown). In Fig. 4 the clutches 82, 88 are operated by an external electromagnet 78 which when energized moves right an armature 75 which through a thrust bearing 83 engages the clutch 82, rightward movement of which acts through a sleeve 68 to disengage the clutch 88. A single Belleville spring may be used in which case the electromagnet energizing voltage is reduced after the armature has been displaced or, as shown, two or more Belleville springs are used working on the sloping portions of their forcedeflection curve, to provide a force-deflection curve which approximates to the solenoid force air-gap characteristic.
Patent GB-477373-A (GB)
Title: Improvements in and relating to ships' hatches
IPC: B63B19/18
Filed: 1936-06-29
Abstract: 477,373. Ships' hatches. WILLIAMSON, D. D., and MACGREGOR, J. June 29, 1936, No. 18007. [Class 113 (i)] In ships' hatches in which the hatch sections run on tracks 3 on the hatch coaming and are tipped into a vertical stowed position at the end of the hatch when it is opened, the rocking movement of the sections takes place about two pivotal axis in succession of which the second is at a lower level than the first. The hatch sections 1 first tip about the pivots 2a when they reach the end of the hatch opening, the rocking movement is completed about the pivot 7 when this pin reaches its associated support 5 mounted on the coaming.
Patent GB-1279554-A (GB)
Title: Process for regenerating hydrogenation catalysts
Inventor: COSYNS JEAN
IPC: B01J38/18
Filed: 1970-04-15
Abstract: 1279554 Regenerating hydrogenation catalysts INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 15 April 1970 [18 April 1969] 18020/70 Heading B1E [Also in Division C5] Reduced Ni or Co on SiO 2  catalysts which have been deactivated in the hydrogenation of hydrocarbons are regenerated by heating in an O-containing gas at 300-600‹C, contacting with liquid H 2 O at 0-250‹C and then with H 2  at 200-500‹C. At no stage in the regeneration is the catalyst contacted with an alkaline agent. The preferred O 2 -containing gas is air.
Patent GB-259180-A (GB)
Title: Improved method of controlling the dabber in heilmann combers
IPC: D01G19/16
Filed: 1926-07-19
Abstract: 259,180. Soc. Alsacienne de Constructions MÚcaniques, (Assignees of GÚgauff, C.). Oct. 2, 1925, [Convention date]. Combing-machines.-In an arrangement for operating the dabber in a Heilmann combing- machine, in which the dabber moves forward from its inoperative position d, outside the range of the comb-teeth, to the position d2 when it is plunged between adjacent rows of the teeth, and is carried back between the teeth, being gradually withdrawn until it is clear of the teeth and can move back slowly into its inoperative position, the dabber e is carried at the end of levers f, g, h controlled by springs s and pivoted to the frame at h. The dabber is mounted on a bracket pivoted to the lever and is normally drawn against a stop k by a spring j. A cam m1 - - m4 moving with the comb hears on a roller g on the lever. The dabber as it moves forward under the control of the cam is brought into contact with sectors c at the sides of the comb. The sectors are provided with slots c<2> at the requisite point into which the dabber is drawn by the spring s. The slots then carry the dabber back with the comb until the cam gradually raises it out of the teeth and moves it back to its inoperative position. In machines in which the comb revolves more than once during a complete cycle of operations the dabber may be held out of action by a stop on the nipper or other suitable part during the revolutions when combing is not taking place.
Patent GB-620478-A (GB)
Title: Improvements in or relating to arrangements for separating frame and line synchronising pulses in television and like systems
IPC: H04N5/10
Filed: 1945-07-14
Abstract: 620,478. Pulse discriminating circuits. LORD, A. V., and PYE, Ltd. July 14, 1945, No. 18054. [Class 40 (vi)] [Also in Group XL (b)] In an arrangement for separating frame and line synchronizing pulses in television and like systems the combined pulses are fed through a limiting device, which conducts only during the intervals between pulses, to a charge circuit which is charged up during the said intervals and which discharges by different amounts during the differing periods of the frame and line pulses, the charge circuit being connected to a second limiting device which conducts only during the frame synchronizing pulses due to the reduced potential of the charge circuit during the longer frame synchronizing pulses. The synchronizing pulses are separated from the picture signals in valve V1, which is biassed to conduct only during the synchronizing pulse periods. Line synchronizing pulses are derived from the output of V1 by means of the differentiating circuit C1, R1, the negative peaks of the waveform constituting the required pulses. The output of V1 is also fed to diode D1, which is so biassed by resistors R2, R3, R4, that it conducts only during the peaks of the potential waveform at the anode of V1, and the resistor R and the condenser C2 are of such value that C2 can be fully charged during the intervals between either the line or frame synchronizing pulses irrespective of the potential to which it discharges through R2. During the longer frame pulses FP the condenser discharges to a lower potential than during the shorter line pulses LP and a second diode D2, which is biassed by R5, R6, R7, to conduct at this lower potential, supplies the frame synchronizing separated from the line synchronizing pulses.
Patent GB-1425682-A (GB)
Title: Roll for a paper-making machine
IPC: D21G1/02
Filed: 1974-04-25
Abstract: 1425682 Rollers ESCHER WYSS GmbH 25 April 1974 [3 May 1973] 18146/74 Heading F2U A roll for use in paper-making apparatus has an internal cavity 10 supplied with coolant via a plurality of peripherally spaced passages 6 terminating adjacent the outer wall 8 of the cavity (at 7). The coolant leaves the cavity through openings 15 and a pipe 11. The angle b of passages 6 is shown as 60 degrees and should be greater than 30 degrees. The system shown results in effective cooling due to laminar flow of the coolest coolant along the wall 8, centrifugal force also helping to keep the densest (i.e. coolest) at wall 8. The roller has a layer of rubber 2 on its surface.
Patent GB-590558-A (GB)
Title: Improvements relating to cinder gleaners or sifters
IPC: F24B15/00
Filed: 1945-04-12
Abstract: 590,558. Sifting-apparatus. FATTORINI, F. B. April 12, 1945, No. 18172/44. [Class 117] A cinder sifter comprises a bucket shape container 4 divided into two parts by a reticulated partition 5, The two compartments are closed by flaps 9 and 10. Ashes from a fire grate may be placed in one compartment and, after agitation with both flaps shut, dust and fine ash is withdrawn from the second compartment and cinders from the first. The division screen 5 may slide into position in channel members 8 secured to the container 4.
Patent GB-801094-A (GB)
Title: Production of uranium deuteride
IPC: C01B5/02
Filed: 1945-07-16
Abstract: <PICT:0801094/III/1> In a process for preparing uranium deuteride (UD3), the vapour of deuterium oxide-enriched water containing at least 9:1 weight ratio D2:H2 is reduced to D2 by a heated metal, and the D2 is then contacted with heated uranium.  In the example, the uranium is produced by mixing uranium tetrafluoride with magnesium, and heating in a closed calcium oxide-lined iron crucible to form a pool of molten uranium from which magnesium fluoride separates.  The closed system shown in the Figure is evacuated to about 0.1 mm. Hg. through 28. D2O vapour is generated in vessel 2 by water bath 4 heated to 30 DEG  C., and is passed over iron, zinc, or, preferably, uranium turnings 9 in chamber 8, heated to 600-800 DEG  C. by electric furnace 11 to effect reduction to D2.  The D2 is passed through trap 16, cooled by solid CO2 and acetone, to condense unreduced D2O vapour.  The dried D2 is passed over uranium turnings 23 in chamber 22, heated to 150-400 DEG  C. by electric furnace 24, and the UD3 falls away to expose fresh metal.  The deuterium is introduced, in amount sufficient to establish a pressure in excess, e.g. 150 mm. in excess, of the decomposition pressure of the deuteride, and substantially as rapidly as consumed.  The completion of deuteride formation is indicated visually on manometer 33 by increase in pressure due to the D2 introduced.  The deuteride is allowed to cool in the deuterium atmosphere in chamber 22.  The apparatus may be of heat-resistant glass, stainless steel, or glass lined iron.ALSO:The uranium, used in the preparation of uranium denteride, is stated in the example to be prepared by mixing uranium tetrafluoride with magnesium, and heating in a closed calcium oxide-lined iron crucible to form a pool of molten uranium from which magnesium fluoride separates.  The cooled uranium has a melting point 1100 DEG C. \sB 25 DEG  and a density of 19\sB 0.1 grams/cc.
Patent GB-1390289-A (GB)
Title: Lamp fitting and connecting member for the reception of electrical wiring between two lamp fittings in a strip lighting scheme
IPC: F21V23/00
Filed: 1973-04-16
Abstract: 1390289 Lighting fittings TRILUXLENZE KG 16 April 1973 [17 April 1972] 18211/73 Heading F4R [Also in Division H2] A connecting member to carry electrical wiring between two sea bed fittings 10 (e.g. in a strip-lighting system) comprises an arched tubular channel 20 of closed cross-section 21, each end passing through a cover 24 provided with a resilient ring 28 for sealing the cover to an opening 13 in one of the fittings 10. A spring catch 26, latching into a lip of each opening 13, ensures that the cover 24 fits tightly. The channel 20, covers 24 and spring catches 26 are formed in one piece, preferably as a plastics moulding or a zinc diecasting, for which purpose the arched channel 20 is conveniently made an arc of a circle in longitudinal section. Preferably the spring-catches 26 engage recesses 13a in the openings 13; and abutments 29 of the connecting member alongside the catches 26, and flanges 25a define the spacing between the fittings 10. The arched channel 20 is constructed to rest on supporting faces 14 of the fittings 10 at such a level that a satisfactory sealing pressure is ensured.
Patent GB-332021-A (GB)
Title: A new pack of playing cards
IPC: A63F1/02
Filed: 1929-06-13
Abstract: 332,021. Cole, G. D. H., and Cole, M. I. June 13, 1929. Card games.-A pack of playing cards comprises four suits, Figs. 2 - - 5, of any number of cards to a suit, a set of honours cards, Figs. 6 and 7, and a " crime " card, Fig. 1. In addition, a " joker," Fig. 8, may be provided and the honours may be duplicated.
Patent GB-804016-A (GB)
Title: Insulating and cooling oils and heat transfer media
IPC: H01B3/24
Filed: 1956-06-13
Abstract: Compositions suitable as heat transfer media, insulating and cooling oils comprise a mixture of chlorinated diphenyls containing 0-8 per cent of p:p1-dichlorodiphenyl and 32-42 per cent by weight of chlorine.  Such mixtures may be produced by chlorinating diphenyl by methods in which little or no p:p1-dichlorodiphenyl is formed (e.g. by means of sulphuryl chloride, preferably in the presence of aluminium chloride, or by means of chlorine in the presence of about 0.5-20 per cent of pyrolusite), or by using the conventional halogen carriers (e.g. iron or antimony chloride) for the chlorination and then supercooling the product until the undesired p:p1-dichlorodiphenyl crystallizes out, and separating the crystals by filtration or centrifuging.  In examples: (1) sulphuryl chloride is run into a melt of diphenyl, aluminium chloride is gradually added, and the resulting mixture is neutralized and distilled, giving a product containing 40 per cent of chlorine; (2) chlorine is introduced into a mixture of molten diphenyl and pyrolusite, and the product, containing 35 per cent of chlorine, is separated by filtration from the pyrolusite or the manganese chloride formed therefrom, neutralized and distilled; (3) diphenyl is chlorinated to 38 per cent chlorine content in the presence of antimony chloride at 100-150 DEG  C., and p:p1-dichlorodiphenyl is crystallized from the product, and filtered off before or after neutralization. Specification 493,961, [Group XIII], is referred to.
Patent GB-222245-A (GB)
Title: Automatic train control mechanism
IPC: B61L3/04
Filed: 1923-07-16
Abstract: 222,245. Vidal, A. E., (Otis Automatic Train Control, Inc.). July 16, 1923. Track apparatus for stopping trains.-The twain carries, at opposite sides, two ramp-operable valve devices 13, 14, respectively connected through pipes 16, 17 with the train pipe 15, and through pipes 18, 19 with opposite sides of a control valve A of plug type. The control valve is moved by a link 30 connected with the reversing lever 31 of the engine and co-operating with arms 27 on the valve, so that, according to the direction of running, one of the pipes 18, 19 communicates through a pipe 20 with the engineer's valve 21. The devices 13, 14 have depending arms adapted to co-operate with corresponding ramps 10 controlled in conjunction with the usual signals and disposed along opposite sides of the track. With the arms depending, communication is established between the pipes 17, 19 and 16, 18. With the arm raised by contact with a ramp, this communication is broken, and the pipe 16 or 17 is vented. With the arm raised in the other or ineffective direction, the above communication is also broken, but the pipe 16 or 17 is not vented. In operation, the arm of the device 13 or 14 which is connected by the control valve A with the engineer's valve 21 is left depending for cooperation with the ramps, and the arm of the other device is raised by means not described, into the ineffective position to prevent venting of the train-pipe 15 through the control valve A. Automatic venting of the train-pipe is effected when the depending arm engages a ramp. A connection 33 is provided between the train-pipe 15 and the pipe 20, provided with a check valve 34 opening towards the engineer's valve 21, c that the driver may exercise an emergency stop control when one of the devices 13, 14 has been ramp-operated, but cannot remove the brakes until the ramp operable devices are restored to running position. The vent of valve A may have a whistle or other alarm. Reference has been directed by the Comptroller to Specification 215,339.
Patent GB-729763-A (GB)
Title: Improvements in surge reducing or pressure reducing valves for the fuel injection apparatus of internal combustion engines
Inventor: MINETT HERBERT HARGRAVE BASIL
IPC: F02M59/46
Filed: 1952-07-21
Abstract: 729,763. Fuel-injection pumps. NAPIER & SON, Ltd., D. Aug. 12, 1953 [July 21, 1952], No. 18320/52. Class 102 (1). In a fuel-injection pump, a housing C is attached to the pump cylinder and has a partion C1 having a central port C2 controlled by a disc valve F, loaded by spring H<SP>1</SP>, and a ring of ports C<SP>3</SP> controlled by a disc valve E loaded by a spring G<SP>1</SP>. The valve F has notches F<SP>1</SP> to allow fuel to pass through ports C<SP>2</SP> and the valve E has an opening E<SP>1</SP> aligned with port C<SP>2</SP> . The positions of the valves E, F, may be reversed. At the end of injection, the. valve F permits return flow to the pump cylinder to reduce the pressure in the delivery pipeÀ
Patent GB-1169498-A (GB)
Title: Improvements in or relating to Electrolytic Removal of Electroplating from Ferrous Bases and Baths therefor.
IPC: C25F5/00
Filed: 1968-04-18
Abstract: 1,169,498. Electrolytic deplating. BERGISCHE METALLWAREN FABRIK DILLENGBERG & CO. K.G. April 18, 1968 [April 27, 1967; Dec.6, 1967], No. 18343 /68. Heading C7B. An electrolytic bath for removing electro-plate from ferrous bases comprises, in aqueous solution, a nitrate such as ammonium nitrate, and one or more of the mono-, di-, and tri-hydric phenols. The latter may be selected from catechol, resorcinol, hydroxyquinone, pyrogallol, phloroglucinol, 1, 2, 4 hydroxybenzene, nitrophenol, nitrocatechol and dinitrophenol. Where the ferrous base contains over 0À1% C it is preferred to include a soluble salt of acetic or citric acid, e.g. the sodium salt in amount 100-200 grams per litre of water. Ammonium nitrate may range from 50 to 400 grams per litre of water, and the phenol. from 1 to 20 cc. Electro-plate may be stripped using the article as anode, a stainless steel cathode and with a current density of at least 8 amps/ sq. dm. The pH of the bath is preferably adjusted to 4-6 using nitric acid.
Patent GB-596094-A (GB)
Title: Improvements relating to light current relays
IPC: H01H53/015
Filed: 1945-07-18
Abstract: 596,094. Electromagnetic relays. SIEMENS BROS. & CO., Ltd., and FOOT, G. H. July 18, 1945, No. 18421. [Class 38(v)] In a sensitive light-current relay, one or more contact balls 3 serve as bridging members between contacts on two relatively moving members 1, 2. In the form shown in Fig. 1 rotation of an inner member 1 causes four balls 3 to roll so that each moves out of engagement with a contact 5 and into engagement with a contact 6 on the outer member 2 while remaining in contact with a contact 4 on the member 1. The contacts 4 project slightly and may be resilient or mounted on springs. One or both of the ball races 1, 2 may be slightly concave. Fig. 3 shows a relay having two arrangements of the kind shown in Fig. 1 placed respectively above and below a horse-shoe magnet 12 with a moving coil 14 arranged between its poles. Current flowing through the coil 14 causes it to turn and operate a spindle 31 to which are fixed the two inner members 28 and 32 of the ball races. The relay may be provided with a return spring 33 or it may be returned by reverse current or an additional coil. In modifications, the contact mechanism is operated by a pivoted or plunger armature.
Patent GB-1393528-A (GB)
Title: Battery plates for electric storage batteries
Inventor: REASBECK PHILLIP
IPC: H01M4/02
Filed: 1971-06-01
Abstract: 1393528 Storage battery plates JOSEPH LUCAS (INDUSTRIES) Ltd 19 May 1972 [1 June 1971] 18487/71 Heading H1B A battery plate 11 for a lead-acid storage battery, includes lead-acid battery paste 13 mounted directly on a non-conductive support 12, and a layer of fibrous material 14 provided on the paste 13, wherein the fibrous material 14 includes glass fibres arranged in the form of a woven or non-woven tissue and containing lead to provide the necessary electrical conductivity for the battery plate. The lead may be provided as a coating either over at least one surface of the glass fibre tissue or over the individual fibres of the tissue. In the manufacture of such battery plates, synthetic resin support grids 12 are moved along a conveyer, Fig. 2 (not shown), pasted with the lead-acid battery paste, passed beneath a sonotrode and a heated doctor blade and the fibrous tissue is then fed from a drum on to the pasted grid face, the plates then being fed to an oven for drying.