baber/WOPTO huggingface dataset:
Patent GB-1239867-A (GB)
Title: Improvements in or relating to pneumatic shuttle-conveying systems
IPC: B65G51/24
Filed: 1969-09-30
Abstract: 1,239,867. Pneumatic shuttle-conveyers. SIEMENS A.G. 30 Sept., 1969 [1 Oct., 1968], No. 47900/69. Heading B8A. In a pneumatic shuttle-conveying system have a junction arrangement for directing shuttles having guide collars from a tube section connected to one side of the arrangement into one or other of two tube sections leaving the other side of the arrangement, or vice versa, the dimensions of the arrangement and of the shuttles are such that, in passing through the junction, at least one of the guides rings is located within one of the two tube sections interconnected by the arrangement.
Patent GB-1081944-A (GB)
Title: Benzdiaz[1,4]epine derivatives
IPC: C07D239/76
Filed: 1964-11-25
Abstract: Benzodiazepine derivatives are prepared according to the following reaction scheme <FORM:1081944/C2/1> (wherein R represents a C1- 7 alkyl group, R1 represents a halogen atom or a trifluoromethyl or nitro group, R2 represents a halogen atom, hal represents a halogen atom, R10 represents a halogen atom or a trifluoromethyl or amino group and the broken lines denote optional substituents). The conversion of compounds VII to compounds V is also described.
Patent GB-1529994-A (GB)
Title: Hydraulic controller for example for use with hydraulic mine-roof supports
IPC: E21D23/16
Filed: 1976-11-17
Abstract: 1529994 Valves HERMANN HEMSCHEIDT MASCHINENFABRIK 17 Nov 1976 [25 Nov 1975] 47921/76 Heading F2V An hydraulic controller for ram cylinders of self-advancing mine roof supports has a casing with two inlets 11, 13, a plurality of jack supply openings 12a-12m, an outlet 14 and a member 4, 5, 7 rotatable in the casing to connect the inlets 11, 13 via internal passages 18, 19 and 21, 22, with selected outlets; the passages each having a valve 17b, 17a with locking means 33a/b, 34a/b operable in at least one position of the rotatable member to prevent movement of one of the valves. As shown the locking means consists of pins 33a/b the heads of which engage grooves 34a/b in thrust members 24a. The valves are moved by lever operated eccentrics 10a/b, 23a/b. In selected positions of the rotatable member long stemmed pins 33a align with long stop screws 38a to prevent valve movement. The levers 10a/b may be held in their valve opening position by arresting pins (39), Fig. 1 (not shown).
Patent GB-1109887-A (GB)
Title: Method of producing a continuous strip of board
IPC: B27N3/20
Filed: 1965-11-12
Abstract: In the manufacture of continuous-strip chipboard by pressing a mat of coated chips section by section, the hot-pressing zone is preceded and followed by a zone of less width in which the moisture expelled in the hot zone can condense. In the pre-heating zone I, the temperature of the press platens is built up rapidly to a point where slight curing of the binder takes place, the upper platen being heated more rapidly than the lower. In zone II, the platen temperatures are reversed and then cooling is effected to bring the temperatures into coincidence.  In zone III, the temperature of both platens is increased slowly to curing temperature, at which it is held until curing is complete and is then allowed to cool slowly in zone V.  Condensation of the expelled moisture takes place in zones III and V.  The platens are heated by the circulation of steam or hot water through groups of channels the temperature of which can be separately controlled.
Patent GB-1235682-A (GB)
Title: Unravelling apparatus
Inventor: SELBY DAVID MAURICE
IPC: D04B17/00
Filed: 1967-10-23
Abstract: 1,235,682. Unravelling yarns. COURTAULDS Ltd. 22 Oct., 1968 [23 Oct., 1967], No. 48085/67. Heading D1W. Knitted fabric is unravelled in an apparatus comprising a casing 2 having an aperture 3 for entry of the yarn 14, a means 11 for maintaining a sub-atmospheric pressure in the casing and a pair of rollers 6, 7 forming a nip adjacent the aperture. At least one of the rollers is driven in a sense that its surface adjacent the other roller moves in a direction from the aperture into the casing. As shown, fabric to be unravelled is held on posts 13, or a clamp, and the end is fed into the aperture 3 with the rollers 6, 7 held apart. The rollers are then closed and the unravelled end passes into container 2 via guide 16. There may be a knife edge between the post 13 and the aperture 3. An air stream may be directed over the rollers at a point remote from the aperture and in a direction counter to their direction of rotation, see Fig. 2 not shown.
Patent GB-1039800-A (GB)
Title: Improvements relating to electric control and signalling apparatus
Inventor: ROSE JOHN DAVID LEWIS
IPC: E21F17/18
Filed: 1963-12-07
Abstract: 1,039,800. Selective signalling. QUARNDON ELECTRONICS Ltd. March 8, 1965 [Dec. 7, 1963], No. 48406/63. Heading G4H. In a signalling system in which a central station is to indicate the condition of a plurality of two-position switches one at each of a corresponding plurality of remote field stations, which may for example be spaced alongside a long conveyer in a mine, the central station transmits a sampling pulse to the first remote station which delays it by one bit period (20 ms.) and passes it to the next remote station, which delays it and passes it to the next remote station, and so on, and any remote station at which a switch is on initiates a reply pulse which is transmitted along the same channel back to the central station where, by its time of receipt it may be ascribed to a particular remote station whose identity is then indicated on lamps. The reply pulses are arranged to interleave the clock pulses passed from station to station. In a first embodiment a single indicating lamp is provided for each remote station. In a second embodiment a single indicator of the type that can display numbers from 0 to 99 is caused to display sequentially the numbers of each remote station at which a switch has been turned on. The arrangement is such that if a single switch only is on then its number is displayed continuously. However, if two or more are turned on then their numbers are displayed (each for the same direction, typically 1 to 3 seconds) cyclically and respectively.
Patent GB-1037249-A (GB)
Title: Improvements in or relating to hydraulically operable clamping devices
IPC: F16B4/00
Filed: 1964-11-27
Abstract: 1,037,249. Securing hubs on shafts. O. E. PETER. Nov. 27, 1964 [Nov. 27, 1963], No. 48424/64. Heading F2U. An hydraulic clamping- arrangement for coupling a hub 13 on a shaft 12 comprises a pair of smooth resilient sleeves 1, 2 forming an annular pressure chamber 8 and closed by axially inserted end caps 3, 4, the members having complementary circumferential tooth serrations 7. The coupling is rendered effective by filling the chamber 8 with pressure liquid, sealing lips 5 on the end caps being forced against recesses 5c in the sleeves 1, 2, the frictional grip being dependent upon the liquid pressure. One sleeve is fitted with a spring-loaded ball valve 9 and the other with a vent screw 10. To prevent corrosion the surfaces of the sleeves in contact with the hub and shaft may be coated with pressure resistant plastic material.
Patent GB-1059188-A (GB)
Title: Colour stable oxytetracycline compositions and process for preparing same
IPC: A61K31/65
Filed: 1963-12-10
Abstract: A pharmaceutical, colour-stable, oxytetracyline composition is prepared by mixing a magnesium, calcium, aluminium or zinc complex of oxytetracycline, having a molar ratio of metal ion to oxytetracyline of from 1:3 to 3:1, with at least one polypropylene glycol having an average molecular weight from 2200 to 8200, and also at least one other glycol solvent (i.e. lower alkylene glycols, polyethylene glycols and polypropylene glycols) if said polypropylene glycol has an average molecular weight of substantially 8200.  The composition may also contain penicillin, streptomycin, polymixin B sulphate, neomycin, oleandomycin, cortisone, hydrocortisone and prednisolone, in addition to buffering and stabilizing agents, e.g. ascorbic acid. The p  composition may be in the conventional forms suitable for oral, parenteral and topical application.
Patent GB-1207679-A (GB)
Title: Improvements in or relating to pattern recognition
Inventor: HOLDEN STANLEY
IPC: G06V10/88
Filed: 1967-11-15
Abstract: 1,207,679. Pattern recognition. HAWKER SIDDELEY DYNAMICS Ltd. 15 Nov., 1967, No. 48699/67. Heading G4R.  A pattern (or character) recognition system forms in a predetermined focal plane a twodimensional auto-correlation of an unknown pattern by double exposure of the same pattern to a beam of either coherent or incoherent light, a multi-element photo-electric sensor being disposed substantially in the focal plane with multiple output lines delivering a group of signals corresponding to different sections of the auto-correlation information, electronic circuits being provided for comparing the group of signals with corresponding groups of signals representing known patterns. An image of a transparency of the pattern is reflected (once) through the transparency by four mirrors (one adjustable) in series, to form the auto-correlation function on an array of an odd or even number of photo-detector elements, each shaped as the sector of a circle. Each photo-detector element feeds each of a number of recognition circuits, one per possible pattern. In each recognition circuit, reference voltages are subtracted from the photodetector element outputs, the results after removal of sign being added to feed a threshold device.
Patent GB-1118468-A (GB)
Title: Improvements in heat pipes
Inventor: BOHDANSKY JOSEF
IPC: F28D15/04
Filed: 1965-11-16
Abstract: 1,118,468. Heat transfer devices. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 16 Nov., 1965 [23 Nov., 1964], No. 48728/65. Headings F4S and F4U. A heat pipe, defined as a heat transfer device comprising a closed tubular container of heatresistant material and condensible vapour and capillary means disposed within the container, is characterized in that the capillary passages are formed directly on the container wall and comprise grooves extending axially or helically of the tube. The depth of each groove is preferably twice its width and the grooves are preferably of rectangular cross-section.
Patent GB-1332502-A (GB)
Title: Method for lubricating a solid-liquid interface
IPC: B01J4/00
Filed: 1970-10-14
Abstract: 1332502 Reducing surface friction GENERAL ELECTRIC CO 14 Oct 1970 [24 Oct 1969] 48738/70 Addition to 1245098 Heading F2R [Also in Division B1] The present invention is a modification of the method of lubricating solid-liquid interfaces claimed in claim 1 of Specification 1,245,098. In that patent the method comprised the steps of preparing a suspension of a polymeric dragreducing additive in a liquid, solvating the suspended additive until a solution of a substantial portion of the polymeric additive has been produced and for a sufficient time to fully develop its dragreducing properties, and injecting the resulting solution on to a solidliquid interface; in the modified (and improved) method, the additive is only partially solvated during a restricted time period with the result that the drag-reducing properties of the solution do not yet fully develop, then directly injecting the solution on to the interface at a flow rate which enables the drag-reducing properties to fully develop there, the liquid at the interface diluting the solution to form an effective lubricating agent. It is stated that the need for the modified method has arisen since the time period required for the unimproved method is in many cases longer than is desired or acceptable.
Patent GB-959878-A (GB)
Title: Fluid pressure system and control
IPC: F15B11/17
Filed: 1962-12-31
Abstract: 959,878. Fluid pressure systems. CATERPILLAR TRACTOR CO. Dec. 31, 1962 [Jan. 19, 1962], No. 49015/62. Heading F1P. [Also in Division B7] A fluid pressure system comprises a pump supplying fluid through a first chamber, and thence through an orifice to a second chamber, and means responsive to a pressure drop across the orifice for dumping fluid from the first chamber. Fig. 1 shows a system for controlling a double acting tractor steering jack 14 by a valve 17, which can be set to expand or contract the jack at slow or fast rates. A small and a large capacity rotary sliding vane pump 11 and 12, fed from a reservoir 10, supply liquid to chambers 23 and 27 respectively. Each pump is driven by the tractor engine, so that the pump outputs increase at high engine speed. Valve 17 can be positioned to extend the jack slowly, in which case chamber 23 delivers fluid to conduit 24, and chamber 27 communicates with the reservoir through chamber 28, passages 37 and 39, and conduit 38. Thus the small pump 11 alone supplies the jack. With valve 17 in the extreme right position shown chamber 27 is cut off from chamber 28, and pressure builds up in chamber 27 to open a check valve 16 so that both pumps supply conduit 24 and the jack extends quickly. An orifice 32 is located between chambers 27 and 23, and a relief valve 18 biased to the closed position by spring 34, is subject on one face to the pressure in chamber 27, and on its other face to the pressure in chamber 22 through conduit 33. At high engine speeds, the high output of pump 12 raises the pressure drop across orifice 32 sufficiently to open valve 18 and allow excess fluid to pass to the reservoir through valve ports 36. Similarly, valve 11 has two positions at the left hand range of its travel, in one of which pump 11 alone supplies fluid to conduit 26, and in the other of which both pumps supply fluid to conduit 26, excess fluid from pump 12 passing to the reservoir. In a modification, Fig. 3 (not shown) the orifice divides chamber 23, from which excess fluid may be dumped, so that excess fluid delivered by pump 11 alone when the jack is operated slowly, can be passed to the reservoir. Specification 795,251 is referred to.
Patent GB-1355149-A (GB)
Title: Metal clamping band
IPC: F16B2/08
Filed: 1972-10-25
Abstract: 1355149 Clamping bands TOYO BEARING MFG CO Ltd 25 Oct 1972 [27 Oct 1971] 49136/72 Heading E2B A clamping band comprises a metal band 1, the end portions 1a, 1b are secured together and with a lever 2 whereby turning the lever onto the band produces an annular band the lever being secured by a retainer 3. The retainer comprises a U shaped member secured to the band and the free end portions of the retainer are bent over onto the lever as shown in Fig. 2. Alternatively, as shown in Fig. 4, the lever is shorter and the keeper retains also the end portions 1a, 1b. The band shown in Fig. 2 may have a collar situated near the inner end of the lever for retaining the lever and band end portions for additional security.
Patent GB-1070780-A (GB)
Title: Improvements in and relating to timber connectors
Inventor: WALLIS ARTHUR LEONARD
IPC: F16B12/46
Filed: 1964-12-03
Abstract: 1,070,780. Joints. TIMBER ENGINEERING CO. Aug. 2, 1965 [Dec. 3, 1964], No. 49228/64. Heading A4H. An angle section, strip metal connector 1 for securing together angularly disposed timber components is formed with a slit 3 extending from one edge along the fold line of the angle section to facilitate bending of one or both parts on either side of the slit 3 along weakened lines defined by slots 4 and edge notches 5. The edges of the strip 1 are formed with spaced, staggered lugs 2 provided with holes 6 to receive nails or screws.
Patent GB-1441972-A (GB)
Title: Nickel electroplating baths and their use in forming corrosion protective metallic coatings containing electrodeposited nickel and microporous chrome
IPC: C23F15/00
Filed: 1973-10-23
Abstract: 1441972 Nickel electro-plating bath OXY METAL FINISHING CORP 23 Oct 1973 [30 Oct 1972] 49344/73 Heading C7B An acidic Ni plating bath, e.g. of the Watts type, contains 0À1-10 g/l of a bath soluble amine (optionally N-substituted) and 0À001-0À5 g/l of a tri- or tetravalent metal-containing cation which precipitates at a lower pH than the Ni in the bath. A Cr electro-plate layer on Ni plated from this bath is micro-porous in dependence on the amount of polyvalent cation present. The bath pH may be 1-5 at 75-170‹F, using a cathode c.d. of 5-200 ASF for a deposit thickness of 0À15-2 milo. The amine maybe a polyamine-polycarboxylic acid, may contain -SO 3 H or -P(O)(OH) 2 groups and includes polyalkyleneimines. Those specified include Na diethylene triamine penta-acetate, sulphanilic acid, N-methyl taurine and N(CH 2 ÀPÀOÀ(OH) 2 ) 3 , many others being listed. The polyvalent cation may contain Al, Cr, Tl, Th, V, U or La and includes complex ions such as uranyl and vanadyl. Additionally a Group I or II metal may be added in conjunction with 0À001-10 g/l finely divided SiO 2 . Other specified bath additives include Co or Fe (which alloy with the Ni), buffers e.g. H 3 BO 3  or HCOOH and brighteners e.g. bis benzene sulphonamide, Na allyl sulphonate, saccharin, o-benzoyl sulphimide or The initial substrate may be Cu, Zn, Steel, Fe or Ni plate, any of which may be a coating on e.g. PVC, PVdC, polypropylene, polyethylene or ABS resin.
Patent GB-1335349-A (GB)
Title: Transducer circuitry for converting an input parameter to a dc current signal
Inventor: FRICK ROGER L
IPC: G08C19/10
Filed: 1970-10-20
Abstract: 1335349 Two-wire telemetry; measuring fluid pressure electrically ROSE MOUNT ENG CO 20 Oct 1970 [27 Oct 1969] 49801/70 Headings G1N and G1U A two-wire telemetry system in which the direct current i T  drawn from a remote source 60 is varied in accordance with changes in a capacitive transducer 10 comprises an oscillator 30 whose output is applied to the transducer to derive a current i 1  proportional to the quantity to be measured, and an amplifier 90 which controls the current i T  drawn from the source 60 in accordance with i  1  the power required for operation of the circuit being derived solely from i T . Oscillator/transducer circuit The transducer 10 comprises a diaphragm 21 which moves in response to pressure difference P 1 #P 2  to vary capacitances C1, C2 differentially, and a fixed capacitance C3 which compensates for stray capacitance effects. During each cycle of the oscillator output, each of the three capacitances C1, C2, C3 is charged via one path and discharged via another path. A resistor 44 in parallel with a smoothing capacitor 25 is arranged to be in both the charging path of C1 and the discharging path of C3, so that a D.C. voltage builds up on capacitor 25 proportional to C1-C3. In a similar way a voltage builds up on capacitor 23 proportional to C3-C2 and a direct current i 1  flows proportional to C1-C2. A differential amplifier 40 receives at one input 43 the combination of the voltage proportional to C1-C3 and a D.C. bias derived from a Zener diode 46 and at its other input 42 the combination of the voltage proportional to -(C2-C3) and a similar D.C. bias. The amplifier output constitutes the oscillator power supply so that the oscillations automatically assume an amplitude such as to make the net amplifier input zero. It is shown that the current i 1  is then proportional to: and is independant of the amplitude and frequency of the oscillations. This expression is directly proportional to the pressure difference P1-P2. Current control and power supply circuit A small, fixed amount (determined by a Zener diode 77) of the transmitted current i T  is drawn by a transistor 73 to provide a supply voltage across lines 55, 56 for energizing the circuit. The remainder passes through a line 75 and is controlled by a transistor 81 in dependence on the output of a differential amplifier 90. One input 91 of the amplifier 90 receives a fixed bias and the other input 96 the sum of voltages proportional to the current i 1  to be measured (as this current passes through a resistance R 3 ) and the total transmitted current (as it passes through R 4 ) respectively. The total transmitted current iT will thus assume a value such as to make the net amplifier input zero, which value will be a linear function of i 1 . The current i T  operates a remote meter, recorder or controller 61.
Patent GB-1208124-A (GB)
Title: Improvements in and relating to a.c. power networks including synchronous dynamoelectric generators and series capacitors
Inventor: THANAWALA HEMESH LAXMIDAS
IPC: H02H7/16
Filed: 1967-11-02
Abstract: 1,208,124. Tuned interconnectors for A.C. networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 1 Nov., 1968 [2 Nov., 1967], No. 49918/67. Heading H2H. An A.C. power network 1 includes a synchronous generator 2 and a capacitor 4 which improves the power factor of the network. In normal conditions, the capacitor 4 forms a series resonant combination with an inductance 3, but if the current exceeds a preset level, reactors 6, 7 saturate providing a shunt across the capacitor and detuning the network to prevent excess current flowing and to avoid a high voltage building up across the capacitor. When the current decreases again, the reactor'7 desaturates before reactor 6 so that a resistor 5, which may be non-linear, provides an additional load and prevents the generator 2 falling out of synchronism. In a modification, Fig. 2 (not shown), the shunt path across the capacitor 4 includes a spark gap and a switch, which may be a saturable reactor.
Patent GB-1313360-A (GB)
Title: Rearrangement of aralkyl hydroperoxides to form phenols and  carbonyl compounds
IPC: C07C27/00
Filed: 1970-10-21
Abstract: 1313360 Phenols SIGNAL CHEMICAL CO 21 Oct 1970 [29 Oct 1969] 49974/70 Heading C2C Phenolic compounds are prepared by continuously contacting an aralkyl hydroperoxide of the general formula where Ar is a substituted or unsubstituted phenyl radical or a polynuclear aromatic radical, R and R<SP>1</SP> are alkyl, cycloalkyl or hydrogen and n is an integer from 1 to 6 inclusive, in a reactor in the presence of a non- reactive organic solvent or carrier, with from 0À1 to 5% by weight, based on the total weight of contacted components, of an acid cleavage catalyst, flowing the contacted components through the reactor at a temperature of from 50 to 120‹ C. and a pressure sufficient to prevent vaporization within the reaction chamber to effect at least 90% cleavage of the hydroperoxide to its corresponding phenolic compound, the residence time in the reactor being not substantially longer than that required to effect the cleavage, the reactor being such that the hold back value of the reaction mixture in the reaction zone is less than 1/e to control the formation of highly coloured side products, and continuously recovering the cleavage product. The reactor is preferably an elongated tubular reactor with a reaction mixture residence time of 5 to 12 minutes. The preferred starting material is p-diisopropylbenzene dihydroperoxide which may be prepared by the oxidation of p-diisopropyl-benzene with molecular oxygen in the presence of aqueous sodium carbonate.