baber/WOPTO huggingface dataset:
Patent GB-1161852-A (GB)
Title: Improvements in or relating to Cross-Linkable Compositions.
IPC: C08G63/676
Filed: 1967-10-03
Abstract: 1,161,852. Coating. HERCULES Inc. 3 Oct., 1967 [4 Oct., 1966 (2) 3 Aug., 1967], No. 45054/67. Heading B2K. [Also in Division C'3] Substrates are coated with a cross-linkable composition comprising a waterfree mixture of (1) an ethylenically unsaturated polymer (2) a latent base which in the absence of water or heat is inert, and (3) a presursor of an polyfunctional nitrite N-oxide compound having the formula -(-Z) 2 , R-(-Z) x , wherein Z is  Y is a halide or nitro radical, R is an organic radical hawing a valence greater than ,1, and X is an integer equal to the valence of R. In the Examples glass, aluminium, stainless steel, polyvinyl chloride and brick are coated.
Patent GB-985205-A (GB)
Title: Improvements in demodulator circuits for frequency modulated electrical signals
Inventor: CLARK ADRIAN PERCY
IPC: H03D3/04
Filed: 1961-12-18
Abstract: 985,205. Frequency and phase detection; telegraphy. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Dec. 13, 1962 [Dec. 18, 1961; March 16, 1962], Nos. 45281/61 and 10202/62. Headings H3A and H4P. In apparatus for the reception of binary coded signals transmitted by frequency modulation, i.e. one carrier frequency representing binary 0 and a second carrier representing binary 1, a demodulator circuit converts the received signal into a pulse train in which the pulse amplitude is proportional to the time period between successive passages of the received signal through zero and means are provided for converting the high amplitude pulses (corresponding to low frequency received signals) to a D.C. signal of one level and the low amplitude pulses (high frequency received signals) to a D.C. signal of a different level. The input signal W1, Fig. 3, in which binary O occurs as a high frequency signal and binary 1 as a low frequency signal, is applied via filter LP, Fig. 2, to amplitude limiter AL and is further squared in a Schmitt trigger circuit ST. The squared signal W3 is applied directly and also via an inverter to a differentiator DG and the output of this circuit after shaping in circuit PC comprises a negativegoing series of pulses W6 each corresponding to a transition of the received signal through zero. This pulse train is applied via emitter follower X1, Fig. 1, to the base of transistor X2 and controls the voltage waveform developed across capacitor C2. During the period between pulses transistor X2 is cut off and the capacitor charges via potentiometer P1 and resistor R6 to a value which depends on the time between pulses and on occurrence of a pulse X2 is biased on and the capacitor discharges through the transistor. The voltage across the capacitor MW3, Fig. 4, comprises low amplitude pulses corresponding to binary 0 and high amplitude pulses corresponding to binary 1. These signals are applied to the base of an emitter follower X3 which includes a capacitor C3 in its emitter circuit which is charged almost to the base potential of X3 when the transistor is forward biased and discharges via potentiometer P2 and resistor R7 when the transistor is cut off. The resulting signal MW4 is applied to a circuit including diode D3 and transistor X4 to provide an output signal MW5 of - 6 v. when the transistor is cut off during the occurrence of low amplitude signals corresponding to binary 0 and zero level signal corresponding to binary 1 when the transistor is biased on by the high amplitude signals. The output signal is applied via a lowpass filter LF producing signal W8, to an amplitude limiter which provides a substantially square wave output signal W9.
Patent GB-1070909-A (GB)
Title: Improvements in or relating to electrical square-wave generating circuits
IPC: H03K3/0231
Filed: 1963-11-15
Abstract: 1,070,909. Electric analogue calculating. HASLER A.G. Nov. 15, 1963 [Nov. 17, 1962], No. 45285/63. Heading G4G. [Also in Division H3] In a square-wave generator (see Division H3) an integrator comprises resistor R0, an amplifier comprising transistors T4. . . T7 having feedback via a Miller capacitor C1. The standing base current in transistor T4 is cancelled by a corresponding reverse current passed via an emitter follower T3 using an NPN transistor. The gain of the integrating amplifier is stabilized by negative feedback via R15. Capacitor C2 prevents oscillation in the region of cut-off frequency.
Patent GB-1012390-A (GB)
Title: Automatic electrical system for the analysis and sorting of data
IPC: G06K1/14
Filed: 1963-11-18
Abstract: 1,012,390. Sorting digital data. J. B. DE COURVILLE. Nov. 18, 1963 [Nov. 16, 1962], No. 45497/63. Heading G4M. Data items each having an associated tag or address, not all the tags being necessarily different, are sorted into groups each having the same tag in a number of passes of the original data past reading means, the items associated with a single tag being transferred to an output store in each pass, and being " ticked off" in the original list as this is done. In each pass the first " unticked " tag read is selected for transfer. As shown, data input is by punched tape 200 (preferably in loop form) read at 21-28 and a tick may be punched in column 8 at 29 by relay 129. Tags are punched on to a tape 400 at 51-57 (a tag is identified by a hole in column 7) and the tag and its associated data (in following positions on tape 200) may be punched into output tape 300 at 31-37. Tape drive motors 128, 138 and 148 and punches 129, 139 and 159 are operated as follows:- Motor 128 is operated continuously whenever a tag (address) is read to give a signal on line 207 and no address stands in 40 (no signal on 407) the tag read is punched at 50 and 30, and motors 138, 148 advance tapes 300 and 400 one step (this brings the punched tag on 400 to the read position 40); punch 129 ticks off the tag. All following data read is punched at 30 until an unticked tag not the same as that standing in 400 is read, when punching ceases until a tag the same as that in 400 is again found, when it is ticked and transferred to 300 with the following data. At the " end of pass " signal from 60 over lines 602-703 the tape 400 is advanced to clear 40 and enable the first unticked tag in 200 to be entered in 300 and 400 as the second tag to be listed. The operation continues until all tags have been ticked.
Patent GB-1157387-A (GB)
Title: Filter-Dryers
Inventor: BALOGH STEPHEN
IPC: B01D37/02
Filed: 1967-10-05
Abstract: 1,157,387. Filter-drier. PARKER-HANNIFIN CORP. 5 Oct., 1967, No. 45513/67. Headings BID, B1L and B1T.  A combined filter and drier, for use in a refrigerant circuit, comprises a hollow ceramic block filter element 18 which contains granules of synthetic zeolite, activated alumina or silica gel 17 which are compressed by a spring-loaded perforate plate 22. The whole is enclosed by a welded casing 11, 12 with inlet and' outlet fittings 13, 15, and element 18 is urged by spring 42 against shoulder 14, with glass fibre packing 28, 38 protecting the element against shock. A screen 19 is also included. In Fig. 1, plate 22 is slidable in element 18 and urged by a spring 24. but in Fig. 2 (not shown) a bowed, resilient perforate plate (52) acts as its own .spring.
Patent GB-1478590-A (GB)
Title: Means for connecting two groups of glass fibres
IPC: H02G15/08
Filed: 1975-11-04
Abstract: 1478590 Optic fibre connector SIEMENS AG 4 Nov 1975 [29 Nov 1974] 45838/75 Heading G2J An elongate body 2 having longitudinal grooves on its surface accommodates abutting fibres 5, 6 and is formed such that a sleeve 7 can be shrunk over the assembly of body end fibres and retain them in position.
Patent GB-1479619-A (GB)
Title: Method of hydraulically mining coal
IPC: E21C45/00
Filed: 1974-10-23
Abstract: 1479619 Hydraulic mining KAISER RESOURCES Ltd and MITSUI MINING CO Ltd 23 Oct 1974 45862/74 Heading E1F A method of hydraulically mining coal from a panel of coal of preselected average thickness comprises driving at least one entry upwards through the panel to a predetermined terminus thereof at an average slope of at least 5 degrees; positioning a monitor within said entry or one of said entries, said monitor comprising a nozzle having a diameter of from 18 to 40 mm, being pivotable vertically and horizontally, and being connected to means for receiving water under pressure; ejecting a jet of high pressure water at a pressure of from 500 to 3000 psi and at a flow rate of from 500 to 3000 g.p.m. from said nozzle against the panel of coal to cut the coal from the face area of the panel and break the coal into pieces of varying size; further particulating at least a portion of said coal which has been cut from said panel in a boiling up step; directing coal and water towards a further breaking means with a dam positioned in said entry; feeding the cut and broken coal through said further breaking means prior to transporting the coal from the face area to reduce the lumps to less than about 6 ins maximum cross section; and feeding the coal to a fluming system positioned within said entry to enable the mined coal to be transported with the water from the nozzle as a coal-water slurry having a coal-water ratio of from 1:4 to 4:1.
Patent GB-1121210-A (GB)
Title: Stable radio frequency source
Inventor: RACY JOSEPH ERNEST
IPC: H03B5/18
Filed: 1966-10-14
Abstract: 1,121,210. Transistor oscillating circuits. SANDERS ASSOCIATES Inc. 14 Oct., 1966, No. 46134/66. Heading H3T. An oscillator comprises first and second resonant cavities with feedback means between them, and an amplifying device with its input electrodes coupled to the second cavity by means of a coupling member which is not directly connected to the cavity. In an embodiment, the first cavity forms the output circuit for a transistor 10, the collector of which is connected to the inner element 72 of the cavity 24. The second cavity, which forms the frequency determining circuit is outside and concentric with the first, its inner element 44 forming the outer element of the first cavity 24. The base of the transistor 10 is coupled to the second cavity by means of a coupling loop 84 which is returned to the emitter via a bias network of resistors 52, 58 (see also Fig. 1, not shown) and to the outer cavity wall via decoupling capacitor 54; the emitter bias network is also decoupled thereto via lead-through capacitor 56. The two cavities are coupled together by means of a lead 38 forming an inductive loop within each cavity and passing through an aperture 80 in the element 44. The inner cavity can be tuned by means of a capacitive screw plunger 78, while temperature compensation is applied to the outer cavity by means of a bimetallic strip 70. Output is taken from the inner cavity by means of a probe 76.
Patent GB-1292593-A (GB)
Title: Improvements in or relating to manufacture of thermo-plastic bodies
Inventor: COOKSEY RAYMOND
IPC: B29C43/00
Filed: 1968-09-28
Abstract: 1292593 Forging plastics materials GKN GROUP SERVICES Ltd 24 Dec 1969 [28 Sept 1968] 46188/68 Heading B5A A peripherally grooved pulley, or an internally or peripherally toothed gear-wheel, is moulded from a thermoplastic material blank 25, e.g. of polypropylene, nylon, or polyacetal, which may be reinforced with glass, carbon or asbestos fibre, which is preheated in a furnace to below the material melting point, e.g. to 5‹ C. below the crystalline melting point, followed by compression in a cavity defined by a stationary lower mould member 11, a surmounting stationary peripheral gear tooth defining member 20, and concentric vertically displaceable outer and inner plungers 12, 24 of an hydraulically actuated ram 18, the outer plunger 12 whereof is slidingly mounted on a ram part 17 and sealingly engages the upper surface of the member 20 under the compression of a spring 19 during continued movement of the inner plunger 24 to effect moulding of the blank 25. The plunger 24 has a gear-wheel bore defining projection 26, along which is relatively slidable a radially projecting bore keyway defining element 27 upon abutment with the lower mould member 11 during descent of the plunger 24. After 30 seconds under full compression, the ram 18 is raised and the gear-wheel is ejected by a spring loaded ejector located in the member 11. In moulding a grooved pulley, the stationary member 20 is diametrically split.
Patent GB-1137614-A (GB)
Title: Improvements in or relating to vehicle wheel pneumatic tyres of the replaceable tread type
IPC: B60C9/22
Filed: 1967-10-10
Abstract: 1,137,614. Wheel tyres. PIRELLI S.p.A. 10 Oct., 1967 [25 Oct., 1966], No. 46253/67. Heading B7C. A replaceable tread ring 1 includes a circumferentially inextensible mixture 3 formed by a helically-wound metal cord having the convolutions substantially parallel to the mid-circumferential plane, and two layers 4, 5 are on each side of cincture 3, each made of parallel metal cords arranged so that the cords of one layer cross those of the other and make an angle with said plane of between 25 and 65 degrees. Radially-inner layer 4 is at least as wide axially as the cincture and radially outer layer 5 has an axial width not greater than the cincture and not less than 60% thereof.
Patent GB-1391914-A (GB)
Title: Conveyor chains
IPC: B65G17/40
Filed: 1971-10-05
Abstract: 1391914 Endless-chain conveyers BRITISH MATHEWS Ltd 4 Jan 1973 [5 Oct 1971] 46288/71 Heading B8A [Also in Division F2] A conveyer chain comprises a plurality of similar links 2 each formed integrally of plastics material and comprising a pair of parallel arms 4 joined to lug portion 6, the lug portion 6 of one link being pivotally connected to the arms 4 of an adjacent link by a metal pin 18, and the arms 4 of each link are formed on their outer faces with guide projections 22 extending partway over the depth of the link and adapted in use to engage under inwardly extending flanges of the guide in which the horizontal run of the chain is supported, to prevent twisting of the chain. Each link preferably is formed from an acetal copolymer. The lug portion 6 is a loose fit on the pin 18 to allow some flexibility of the chain.
Patent GB-1274536-A (GB)
Title: A distributing air blowing trunk
IPC: A21B1/00
Filed: 1969-09-22
Abstract: 1,274,536. Ventilating grilles. WERNER & PFLEIDERER. 22 Sept., 1969 [4 Oct., 1968], No. 46607/69. Heading F4V. A ventilating grille in an outlet from an air duct, and which changes the direction of flow through 90 degrees, comprises arcuate plates 5 spaced along the length of the outlet, each plate being "sprung" into recesses in the duct walls. The length of each plate 5 is greater than the length A between two Vinotches 7 into -which the plate is-to be "sprung". The plates may be of thin spring steel. The width of each blade 5 is greater than the width of the gap between the walls 4, Fig. 2, 50 that the width of the gap may be adjusted.
Patent GB-1520506-A (GB)
Title: Internal combustion engine
IPC: F02B19/16
Filed: 1975-11-11
Abstract: 1520506 IC engine pre-combustion chambers TOYOTA JIDOSHA KOGYO KK 11 Nov 1975 [13 Nov 1974] 46613/75 Heading F1B An I.C. engine comprises a main combustion chamber 20 in a cylinder head 21, a recess extending into the material of the cylinder head from a surface defining part of the wall of the main combustion chamber, a shell 31 incorporated in the cylinder head during casting thereof and co-operating with said recess to define therewith a cavity constituting an auxiliary combustion chamber, and an auxiliary port or ports 26, 28 in the shell interconnecting the main and auxiliary combustion chambers. The recess and shell are cylindrical and the shell is prevented from rotating by a flat on flange 33 or by a roughened surface or groove. An air/fuel mixture is drawn into main chamber 20 through induction passage 23, controlled by inlet valve 22. A richer mixture is supplied through pipe 30 and is deflected by the back of valve 22 into auxiliary inlet port 26. The interior of the shell is scavenged, during the induction stroke, through outlet port 28 and mixture flow within the auxiliary combustion chamber is guided by projection 36. Reference is made to Specification 1520504 and 1520510.
Patent GB-1509559-A (GB)
Title: Method of protecting molten metal containers against corrosion
IPC: C23C4/12
Filed: 1975-11-12
Abstract: 1509559 Internally coated containers PATRONATO DE INVESTIGACION CIENTIFICA Y TECNICA JUAN DE LA CIERVADEL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS 12 Nov 1975 [29 Nov 1974] 46662/75 Heading B2E The internal surface of a container for molten metals, e.g. of steel, is treated, e.g. by sand blasting, so as to be unpolished and impurity free, and then coated with at least one layer of a ceramic material by spraying, e.g. with a plasma or gas torch. Suitable ceramic materials are ZrO 2 , Al 2 O 3  or SiO 4 Zr. The container surface may be alloyed with a Ni-Cr layer before applying the ceramic layer.
Patent GB-1348438-A (GB)
Title: N-blocked amino acids
IPC: C07D209/20
Filed: 1971-10-07
Abstract: 1348438 N-tertiary-butoxycarbonyl aminoacids EASTMAN KODAK CO 7 Oct 1971 [14 Oct 1970 28 June 1971] 46691/71 Heading C2C N-tertiarybutoxycarbonyl aminoacids are prepared by reacting a base salt of the aminoacid with O-tertiary butyl S-phenyl thiocarbonate in a solvent medium at a temperature and for a time sufficient to form the N-tertiary butoxycarbonyl derivative. Specified aminoacid starting materials are glycine, aspartic acid and the L-forms of phenylalanine, valine, S-benzylcysteine, alanine, isoleucine, glutamine, leucine, methionine, asparagine, proline, tyrosine, serine, nitroarginine, tryptophan, glutamic acid, α- aminobutyric acid, aspartic acid #-benzyl ester, S-CBZ-cysteine, glutamic acid α- and γ-benzyl ester, cystine, N<SP>im</SP>-benzyl-histidine, N<SP>im</SP>-tosylhistidine, histidine, hydroxyproline, #-CBZ- lysine, methionine sulphoxide, norleucine, N- p-tosyl-arginine, threonine, #-trifluoroacetyllysine, O-benzyl-serine, and O-benzyl-tyrosine. Suitable compounds for forming the amino-acid base salt are NaOH, NH 4 OH, triethylamine, tributylamine, 1,1,3,3 - tetramethylguanidine and benzyltrimethylammonium hydroxide. The by-product thiophenol may be oxidized to phenyl disulphide with aqueous H 2 O 2  while maintaining the pH at 8-10 with HCl. The reagent may be prepared by reacting thiophenol with phosgene in the presence of an amine to give phenyl chlorothioformate, and reacting the latter with t-butanol in the presence of an amine.
Patent GB-1409723-A (GB)
Title: Web or sheet transport apparatus
IPC: B65G13/06
Filed: 1972-10-10
Abstract: 1409723 Feeding sheets and webs FUJI PHOTO FILM CO Ltd 10 Oct 1972 [11 Oct 1971] 46728/72 Heading B8R A sheet or web 4 is fed through the nips of a number of pairs of rollers, successive pairs being driven from opposite sides so that the sum of the nip pressures applied to the sheet or web is substantially constant across its width. As shown in plan in Fig. 5, the top rollers of each pair are driven by pinions 5 which engage worm gears 6 on two shafts 7, one on either side of the feed path. The bottom rollers of each pair are driven via gears 1a on the shafts of each top roller. The gears may be replaced by frictionally engaging wheels or a belt drive.
Patent GB-1323302-A (GB)
Title: N-substituted-cycloalkano-indoles
IPC: C07D209/86
Filed: 1970-10-02
Abstract: 1323302 Cycloalkano[b]indoles SANDOZ Ltd 2 Oct 1970 [13 Oct 1969 18 May 1970] 46870/70 Heading C2C The invention comprises compounds of formula their derivatives in which the amino group is substituted by 1 or 2 C 1-4  alkyl or hydroxyalkyl radicals or is replaced by a morpholino, piperidino, pyrrolidino or C 1-4  alkylpiperazino radical, and acid addition salts thereof, wherein R 1  is H, F, Cl or C 1-3  alkyl or alkoxy, m is 0 or 1, and either (a) n is 3, R 3  is H and R 2  is H or Me, or (b) n is 3-13, R 2  is H and R 3  is Me, provided that (i) when m is 1, R 2  is H, and (ii) when R 1  is Cl or F, R 2  and R 3  are H. These compounds, as well as those where R 3  is H, R 2  is H or Me, and n is 4-13, are prepared by (1) reacting a 1-(p-R 1 - phenyl)-3-R 3 -4-R 2 -pyrazolidine (m=0) or -hexahydropyridazine (m = 1) with a cycloalkanone containing (n+2) C atoms, or (2) (m=0) reducing with B 2 H 6  in an inert organic solvent, the corresponding N-(3-aminoalkanoyl) cyclopolymethylene[b] indole (II), (which are also claimed per se), and in either case optionally converting the amino group to the said derivatives. Therapeutic compositions for oral or parenteral administration comprise the above compounds I, which have C.N.S. depressant activity and are stated to be of use as sedatives and/or tranquillizers; or the above compounds II, which have sedative-hypnotic and in some cases antidepressant activity.
Patent GB-1157994-A (GB)
Title: Steering Device for Ships
Inventor: PLEUGER FRIEDRICH WILHELM
IPC: B63H25/46
Filed: 1966-10-20
Abstract: 1,157,994. Steering ships. F. W. PLEUGER. 20 Oct., 1966 [27 Oct., 1965], No. 47031/66. Heading B7V. A transverse jet propulsion steering device for a ship comprises a radial flow impeller 3 provided in a horizontal transverse conduit 2 within the ship with its axis of rotation lying in or parallel to the vertical plane of the longitudinal centre line of the ship and including control vanes 7, 8 shiftable coaxially with the rotational axis of the impeller to reverse the direction of thrust without reversing the direction of rotation of the impeller. In the embodiment shown, the axis of rotation 5 of the impeller is vertical. In the embodiment of Fig. 2 (not shown), the axis is horizontal.
Patent GB-1375913-A (GB)
Title: Sliding clasp fasteners
IPC: A44B19/02
Filed: 1972-10-12
Abstract: 1375913 Sliding clasp fasteners OPTI-HOLDING AG 12 Oct 1972 [13 Oct 1971 (2)] 47062/72 Heading E2S A sliding clasp fastener stringer comprises a pair of stringer tapes 1 each having a row 2 of interlocking fastener elements thereon having a plurality of spaced-apart turns 6 and stitching 3, 4 securing the elements to the tapes formed of a needle thread 3 and a looper thread 4, the needle thread 3 having a plurality of U-shaped bights 3a straddling the turns and the looper thread 4 lying substantially against the back face of the tape. In another arrangement, Fig. 5 (not shown) a three-thread chain stitch is employed on a folded over tape for an invisible type fastener. The first arrangement is produced by feeding a pair of tapes and interlocked fastener elements through a sewing station 11 Fig. 6, and then passing the stringer between heated rolls 29 to shrink and fasten the needle threads on to the elements and tapes.
Patent GB-1165699-A (GB)
Title: Improvements in or relating to Electronic Counters
Inventor: TAYLOR GORDON WILLIAM
IPC: H03K23/00
Filed: 1965-11-06
Abstract: 1,165,699. Electronic counters. RACAL INSTRUMENTS Ltd. 16 Oct., 1967 [6 Nov., 1965], No. 47143/65. Heading G4A. Each stage of a ring counter comprises a pair of transistors such as VT 3 , VT 4  so arranged that only one of the pair is conductive at a time, the base of VT 3  being connected to a common input circuit 12, and the base of VT 4  being coupled through a resistor R 1  to the corresponding transistor VT 2  of the preceding stage. Zener diodes Z1-Z5 connect the collector of VT 3  to the base of VT 4  in each stage. Two out of the five stages are concurrently in 1 condition, i.e. with the right-hand transistor conducting. The circuit values are chosen so that initially stages A and D are full off, B is critical off, and C and E are full on. An input pulse lowers the potential at 12 slightly, whereupon B goes full on and C critical on while stages A and E assume a neutral condition. The end of the pulse sends A and C full off and D critical off. The code has thus changed from 00101 to 01001. The original condition with carry is resumed after five pulses.