baber/WOPTO huggingface dataset:
Patent GB-1416335-A (GB)
Title: Process for the study of internal physiological phenomena
IPC: A61B5/053
Filed: 1972-11-03
Abstract: 1416335 Electro-medical apparatus J DUROUX 3 Nov 1972 [15 Nov 1971] 50831/72 Heading G1N Physiological phenomena are investigated by subjecting the body to an electromagnetic field having a frequency of at least 10 kHz, this frequency being regulated to determine the volume of body to be investigated, sensing and measuring at least one component of the field in the vicinity of the volume by means of a field pick-up in contact with the body, calculating an impedance function based on the measurement, and registering this function. The source of the field is preferably a magnetic dipole consisting of a search coil having a current passed therethrough. An electric dipole may alternatively be used. The coil may be arranged at a distance from the surface of the body with the coils in a plane at right-angles to the surface or it may be arranged on the body either perpendicular or parallel to the body surface. The components which may be measured are the magnetic field components Hx, Hy, Hz using pick-up coils 4, 10, and the electric field components Ex, Ey, Ez using pick-up electrodes 3. Various orientations are described with reference to Figs. 3-12 (not shown). Alternatively the phase shift of the  various components relative to the field or the in-phase or quadrature components may be measured. As shown in Fig. 2, the electrodes 3 and the coils 4, 10 are each connected to a respective filter and amplification chain 5, 6, 11 whose outputs are applied to a calculator 7 whose output is applied directly to a register 8 and to the register via a shunt 9 which provides a differential with respect to time. Various impedance functions determined by the calculator from the measured values are given.  The phenomena which may be investigated include, pulmonary ventilation, respiratory frequency, cardiac output, the water content of the extravascular sector, lungs or peripheral interstitial tissue, circulation in the kidneys, brain, a limb or any other part of the body.
Patent GB-1004237-A (GB)
Title: Improvements in production of plastic printing plates
IPC: B41C3/06
Filed: 1963-12-31
Abstract: 1,004,237. Printing plates. REICHHOLD CHEMICALS Inc. Dec. 31, 1963 [Dec. 31, 1962; Dec. 18, 1963], No. 51347/63. Heading B6C. In the manufacture of a plastic printing plate using an open-bed casting apparatus a mat 11, Figs. 1, 2, is first placed on the surface of a bed 13 with a vacuum drawn via a conduit 18 to maintain the mat perfectly flat. After a cofferdam 21 is formed around the bearer 19 of the mat, a styrene wetting agent is applied by a sponge or the like to the exposed mat face. A vibrator is turned on and a thermosetting mixture of resin, catalyst and promotor is poured over the mat. After a short period, generally less than one minute, the vibration is stopped, and the resin will generally complete its initial gel in less than two minutes. As the gel begins to take place, wax is spread over the exposed reverse side of the plate to enable it to surface cure. Additionally or in the alternative, wax may be incorporated in the resin mixture. The cast is then separated from the mat, and heated by an oven or lamps for postcure if necessary. The cast is then shaved on its reverse side by means of a planing machine to provide a uniform and predetermined thickness. Another embodiment relates to a closed box casting method and utilizes the casting box 22, Figs. 3, 4. The box 22 includes a bed 23 having a flat surface 24 incorporating holes 25. A mat 11 and cofferdam 21 of sponge rubber are mounted over the bed 23. The box 22 further includes a member 26 with a flat surface 27 incorporating holes 28. A separator sheet 29 is placed on the surface 27 and drawn uniformly against it by means of the vacuum through the holes 28. A vacuum is provided at the holes 25 and 28 through pipes 32, 31 in communication, respectively, with the chambers 34, 33, of the casting box. The member 26 is then disposed in overlying closed relation to the casting bed as shown in Fig. 4 with spacing blocks 35 being provided between the bed and the member 26. Suitable clamp means are used to secure the bed and member 26 together in closed position. The box is then moved into a slightly tilted generally vertical position prior to pouring the liquid resin composition into the casting space through an aperture 37 in the cofferdam wall. After the composition has gelled the vacuum is discontinued and the box opened.
Patent GB-1280470-A (GB)
Title: False twisting apparatus
Inventor: PARKER WALTER
IPC: D02G1/08
Filed: 1968-10-31
Abstract: 1280470 False twist device; crimping yarns ERNEST SCRAGG & SONS Ltd 21 Jan 1970 [31 Oct 1968] 51563/68 Headings D1D and D1F A false twist device comprises a roller 13 with guides 15 and 16 which guide the yarn over the roller such that the yarn drives the roller and false twist is inserted in the yarn upstream of the roller. The roller has a low friction area 13a and a high friction area 13b e.g. of polyurethane. After passing over these two areas the yarn is guided circumferentially about a further portion of the roller to drive it. This latter portion may be of greater diameter than the rest of the roller and be of hard wearing, high friction material, e.g. matt chrome finished steel or brass. The further portion may be interchangable so that different twisting rates can be obtained. The device may be used in crimping a yarn 12 from a bobbin passing through a tensioner 17, a tensioner 18, a heater 19, a cooling device 21, the false twister 11 and forwarding rollers 22 to pass to take up means 23. An additional heater may be provided after the false twister.
Patent GB-1187189-A (GB)
Title: Resistance of Olefin Polymers to Heat Deterioration
IPC: C08K5/372
Filed: 1968-11-04
Abstract: 1,187,189. Aminophenyl sulphides. NATIONAL DISTILLERS & CHEMICAL CORP. 4 Nov., 1968 [27 Dec., 1967], No. 52138/68. Heading C2C. [Also in Division C3] Bis - (p - dialkylaminophenyl) - sulphides may be prepared by reacting N,N-dialkylanilines with sulphur dichloride in an organic solvent. Examples describe the preparation of the diethyl- and dimethyl-compounds by reacting (I) N,N-diethylaniline and (II) N,N- dimethylaniline with sulphur dichloride in hexane.
Patent GB-1237523-A (GB)
Title: Improvements in or relating to fuel injection systems
IPC: F02D41/34
Filed: 1969-10-24
Abstract: 1,237,523. 523. Fuel injection control systems. ROBERT BOSCH G.m.b.H. Oct. 24, 1969 [Oct.25, 1968], No. 52165/69. Heading G1N. [Also in Division H3] In an I.C. engine fuel injection control system, the duration ti of pulses for opening the injection valves is controlled by a monostable multivibrator 12 in dependence upon the pressure in the inlet manifold, via transformer 13, and the engine speed, via a control voltage Us having a curve shape varying periodically in synchronism with the opening pulses, from a switching device A. In this manner, the pulse duration ti of each succeeding opening pulse is determined by the instantaneous value of the control voltage Us at the end of each succeeding pulse. Operation. At the end of each opening pulse a negative voltage appears on the collectors of T1, and T3 is then blocked for a fixed period t 3  depending upon the value of C2. A positive pulse of duration t 3  thus appears on the collector of T3. During this positive pulse, C3 is charged to a voltage dependent upon the potential of a junction P on a potential divider R10, R11, R12. When T3 reverts to its conducting state, a negative pulse appears on its collector which is transmitted to the base of T4 so that diode D is blocked. T4 then enters its conducting state and a negative voltage appears on its emitter, i.e. after a period t 31 (= t 3 ). During the period t 32 , the charge on C3 is reversed, via the conducting base-emitter path of T4, so that T4 is The voltage threshold value to which the charge on C3 can be reversed is determined by the collector potential of T4, i.e. the potential at point Q on the voltage divider. As soon as C3 has discharged to the extent when T4 is no longer overdriven by the current of the chargereversing operation, T4 operates as an emitter follower. Therefore, during the period t 33  the voltage on the emitter of T4 follows the charging voltage on C3. The maximum value to which C3 can charge is determined by the potential at P since D is again conductive when this threshold is obtained. The period t 34  represents the period until T3 is blocked again. If the engine speed increases, i.e. t p  decreases, to the extent where D cannot become conductive, the duration of the opening pulse from multi-vibrator 12 is determined by the momentary value of the control voltage Us on the portion t 33  immediately before the end of the pulse. Thus, it is seen that, for constant manifold pressure, the pulse duration is constant up to a speed n 1  where t p  = t 31  + t 32  + t 33 , varies with speed up to a speed n 2  where t p  = t 31  + 1 32 , and is again constant thereafter, Fig. 2 (not shown).
Patent GB-1057289-A (GB)
Title: New pyrrolidine derivatives
IPC: C07D207/09
Filed: 1965-12-09
Abstract: Novel compounds of the formula <FORM:1057289/C2/1> (wherein R is C1- 4 alkyl and Am is amino, hydrazino, guanidino, mono- or di-C1- 4 alkylamino, di - C1- 4 alkyl - alkylene - amino, arylamino - alkyleneamino, 1 - pyrrolidinyl, piperidino, morpholino, 1-piperazinyl, 4-C1- 4-alkyl-1-piperazinyl 4-aryl-1-piperazinyl, 4-aralkyl-1-piperazinyl, 4 - hydroxy - C1- 4 alkyl - 1 - piperazinyl or 4-C1- 4 alkoxycarbonyl-1-piperazinyl) and acid addition salts thereof, are prepared by reduction of the corresponding -CO-Am compounds, or by reacting the corresponding -CH2-OH compounds with thionyl chloride and then with the compounds Am-H Examples describe these processes and also the preparation of 1 - methyl - 5 - (3,4 - dimethoxyphenyl) - 2 - (aminomethyl) - pyrrolidine by heating 2 - (3,4 - dimethoxyphenyl) - 1 - pyrroline -5-carboxamide and methyl iodide in ethanol and then reducing the product with lithium aluminium hydride.  1 - Methyl - 5 - (3,4 - dimethoxyphenyl) - 2-(41 - phenyl - piperazine - carbonyl) - pyrrolidine is prepared from methyl 1-methyl-5-(3,4-dimethoxyphenyl) - pyrrolidine - 2 - carboxylate and 1-phenylpiperazine.  The corresponding 41-(o -methoxy-phenyl)-piperazino and morpholino compounds are prepared similarly.  The pyrrolidine compounds of the invention, which are stated to have spasmolytic, cardiovascular, hypotensive and/or anti-secretory activities, may be made up into pharmaceutical compositions for peroral or parenteral administration with suitable carriers.
Patent GB-1495280-A (GB)
Title: Method of charging a system with an alkali metal fluoride
IPC: C23F15/00
Filed: 1974-12-03
Abstract: 1495280 Charging systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Dec 1974 [6 Dec 1973] 52258/74 Heading F4U A method of charging a system which in its operating condition contains a melt of an alkali metal fluoride or of a mixture of alkali metal fluorides or of a mixture of one or more alkali metal fluorides with one or more alkaline earth metal fluorides, comprises the steps of introducing the fluoride (s) into the system in a molten state in air, adding a quantity of metallic aluminium to the melt, and then sealing the system in a gas-tight manner, wherein the quantity of aluminium added is at least sufficient to bind all the oxygen present in the sealed system, to saturate the melt, and to coat the inside of the system with an aluminium-containing film, and wherein in operation the system contains substantially no excess aluminium. The melt is preferably sodium fluoride together with calcium fluoride and/or magnesium fluoride.
Patent GB-1444111-A (GB)
Title: Data transmission apparatus
IPC: H04B3/00
Filed: 1973-11-12
Abstract: 1444111 Transistor circuits; transmission systems INTERNATIONAL BUSINESS MACHINES CORP 12 Nov 1973 [27 Dec 1972] 52405/73 Headings H3T and H4R A transmission line data bus is provided with termination circuits connected to the end of the bus and at least one intermediate point, means being provided to switch a termination circuit to a high impedance state in the case when it is connected to an intermediate point and to a low impedance state which matches the line impedance, in the case when it is connected to the end of the line. In one embodiment, Fig. 4, where the circuit is to terminate the line latch L1 is in its reset state, AND gate A1 is inhibited and transistor T5 of a first current switch is cut off. The current from constant current source CS2 then flows through transistor T4 to cut off transistor T3 of a second current switch. When a high level input signal is applied to data bus DB, transistor T1 is cut off, and energy from the data bus flows through a transistor T2 strapped as a diode, which provides a correct termination to the line. If the circuit is used at an intermediate point, latch L1 is set, enabling AND gate A1. In this state, a high level signal on DB passes through the gate to switch the states of the transistors. T2 is thus cut off, and provides no impedance across the line. In a first modification, Fig. 5 (not shown), only a single current switch is used, bias signal (V3, V4) maintaining the diode-strapped transistor (T8) cut off when used at an intermediate position whether DB is at high or low level. In a second modification, Fig. 6 (not shown), the AND gate is omitted from the circuit of Fig. 4, the diode-strapped transistor (T16) again being maintained off in either state of the signal on DB when used at an intermediate point. A third modification of Fig. 4, Fig. 7 (not shown) retains the latch and AND gate, but uses only a single current switch. A fourth modification employs field effect transistors Fig. 8 (not shown).
Patent GB-1187640-A (GB)
Title: Sliding Clasp Fastener
IPC: A44B19/16
Filed: 1967-11-17
Abstract: 1,187,640. Sliding clasp fasteners for bags. ASF GLEITVERSCHLUSS G.m.b.H. 17 Nov., 1967 [3 Dec., 1966], No. 52481/67. Heading E2S. A sliding clasp fastener of plastics material comprises two fastener strips 1, 2 Fig. 1a, the end of each formed into interengageable profiles 3, 5 and one of which can be connected to the front wall of a bag 4 or the like while the other fastener strip 2 has a bentback extension 6 for joining the strip to the rear wall 7 of the bag. Modifications comprise a spacing strip (10) Fig. 2 (not shown) or a bead (13) Fig. 3 (not shown) formed at the transition from one fastener strip to its extension. The profiles may take the form of interengageable hooks e.g. 16, 20 Fig. 1b reinforced in the closed position by backing webs e.g. 24. Various embodiments of the profiles based on a mushroom-like male component are  illustrated.
Patent GB-1284893-A (GB)
Title: Improvements in or relating to incinerator toilets
Inventor: BLANKENSHIP ERNEST BAYNE
IPC: A47K11/02
Filed: 1969-10-27
Abstract: 1284893 Incinerator toilets E B BLANKENSHIP 27 Oct 1969 52611/69 Heading E1C An incinerator toilet comprises a bowl 19 connected via a valve 22 to an incinerator chamber 30, a vent connecting the chamber to atmosphere containing a condenser 40 which returns condensate to a storage tank 36. When valve 22 is opened by a foot pedal a finger 52 operates a timer switch 54 which energises heating element 35. Fan 45 withdraws vapours through the vent. Fan 48 cools condenser tubes 43. After valve 22 has closed a switch operates pump 37 to supply water from the tank 36 to the bowl.
Patent GB-1168808-A (GB)
Title: A Circuit Arrangement for Converting Electric Power
IPC: H03B19/03
Filed: 1966-11-25
Abstract: 1,168,808. Converting. AJAX MAGNETHERMIC CORP. 25 Nov., 1966 [10 Jan., 1966], No. 52996/66. Heading H2F. In an arrangement for converting multiphase power to a different number of phases at the same or a different frequency, each phase input includes an inductor 4, 5, 6, Fig. 3, in series with a pair of antiparallel controlled rectifiers 7, 8, 9. The load 56 is connected between the rectifiers and a neutral point, which may be formed by capacitors 52, 53, 54. Harmonics are removed by tuned circuits 43, 46, 44, 47 and 45, 48. The rectifier control circuit, Fig. 2, comprises a phase shift circuit 24 and a variable autotransformer 25 the output from which is fed to the rectifier units 26, 27, 28. Each unit includes a square loop inductor 33 and transformer 35, 36 which shape the pulses fed to the antiparallel rectifiers 7a, 7b. Fig. 6 (not shown), is an embodiment providing a frequency multiplication of nine.
Patent GB-1356839-A (GB)
Title: Bearing
IPC: E04G/
Filed: 1971-11-17
Abstract: 1356839 Resiliently mounted structural bearings J B R GOMEZ 17 Nov 1971 [18 Dec 1970] 53418/71 Headings F2A and F2S A bearing for use in a bridge or other large structure in which one part is movable relative to a fixed part has locating means secured in the fixed part 4 on which is slidably mounted an intermediate member 8 which can move towards and away from the fixed part, there being cushioning means 5 between the fixed part and the intermediate member, and a bearer member 15 attached to the movable part so as to be slidable relative to the intermediate member, there being a layer of low-friction material 11 between the intermediate and bearer members. The locating means are pins 3 which extend into the fixed part and into apertures 9 in the intermediate member. A reinforced elastomeric plate is provided as the cushioning means and a layer of PTFE may be the low-friction layer. The bearer member may have flanges 14 which abut (via a layer of PTFE) a pair of sides of the intermediate plate which are parallel with the direction of movement of the two parts so as to prevent movement in a transverse direction.
Patent GB-535299-A (GB)
Abstract: 535,299. Composite yarns. BELL, A. S. Oct. 3. 1939, No. 27095. [Classes 120 (ii) and 120 (iii)] A composite yarn is formed by feeding to a twisting device at predetermined rates a number of component yarns, at least one of which is a continuous filament yarn which is led into contact with a cutting surface so that filaments in the yarn are severed into staple fibre, the yarn not to be the severed being led clear of the cutting surface and with the stapled continuous filament yarn being formed into a common balloon and twisted together by the twisting device ; the continuous filament yarn may be doubled with a crape yarn or with a composite yarn which itself has a staple fibre component and which may have been formed by the method described above. The continuous filament yarn may have a relatively low twist or may be a voluminous yam and at least one of the component yarns may be a cellulose acetate yam. As shown yams 1, 2 are fed by rollers 4, 5 to a ring twisting device 3, the continuous filament yarn 1 passing over an adjustable tension rod 9 and passing into contact with a file 7 carried by an adjustable rod 8 of semicircular crosssection and around the smooth face of which the other yam 2 passes ; the two yams then pass through an adjustable balloon guide 6 to the twisting device. The cutting surface may be formed by an abrasive tube through which the continuous filament yarn passes, the other yam contacting with the surface of a smooth holder carrying the tube. Specifications 424,880, 442,073 and 464,981 are referred to.
Patent GB-1151475-A (GB)
Title: Refractory Ceramic Materials
IPC: C04B35/584
Filed: 1967-11-24
Abstract: 1,151,475. Glass-ceramic mixtures; coating therewith. MONTECATINI EDISON S.p.A. 24 Nov., 1967 [30 Nov., 1966], No. 53709/67. Heading C1M. [Also in Divisions C4 and C7] Refractory materials containing 65-95% Si 3 N 4  and 35-5% B 4 C or other refractory boron compound is made from a mixture of the powders with a particle size less than 0À075 mm., the powders being wetted with or suspended in a dispersing agent solution and after shaping the mixture or painting the suspension on a substrate, the product is dried and heated in air or in an oxidizing atmosphere. The powder mixture may also contain 1-25% by weight of cryolite, glass, zirconium salts, silicon or silicon carbide and heating is effected at 850-1250 C. The alternative boron compounds may be boron nitride or calcium borate and the zirconium salt may be zirconium oxide. The dispersing agent used is a high molecular weight polyacrylamide.
Patent GB-1085549-A (GB)
Title: Improvements in vibration damping means
IPC: F01D25/04
Filed: 1965-12-20
Abstract: 1,085,549. Gas turbine engines; turbines. GENERAL ELECTRIC CO. Dec. 20, 1965 [Dec. 31, 1964], No.53793/65. Headings F1G and F1T. [Also in Division F2] A gas turbine engine comprises a gas generator rotor unit of compressor drum 30 and turbine rotor discs 32a, 32b mounted on a hollow cylindrical shaft 34, a power turbine unit of rotor discs 36a, 36b mounted on a shaft 38, combustion equipment 14 and labyrinth seals 43 ------ 48 between the various parts, the seals (Division F2) being fitted with vibration damping means.
Patent GB-1208127-A (GB)
Title: Improvements in or relating to well reamers
Inventor: IOANNESIEN ROLEN ARSENIEVICH
IPC: E21B10/30
Filed: 1967-11-29
Abstract: 1,208,127. Boring earth &c. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT BUROVOI TEKHNIKI. 29 Nov., 1967, No. 54289/67. Heading E1F. A reamer comprises a rotary cutter 2 inclined to the drilling axis and having a centre of gravity displaced from the axis. The axis of the cutter intersects the drilling axis below a plane containing the apices of the lowermost row of cutting teeth or elements 3.
Patent GB-1501870-A (GB)
Title: Nuclear reactor fuel element sub-assemblies
IPC: G21C3/33
Filed: 1975-11-17
Abstract: 1501870 Fuel elements UNITED KINGDOM ATOMIC ENERGY AUTHORITY 17 Nov 1975 [18 Dec 1974] 54760/74 Heading G6C In a fuel assembly comprising a bundle of fuel pins spaced apart by a series of cellular grids at intervals along the length of the bundle (Figs. la, 1b not shown), each fuel pin has a waist disposed at a common end region of the bundle and the cell-forming structure of corresponding cellular grid has resiliently yieldable projections extending radially into the cells to engage the waists of the fuel pins. In one embodiment, Fig. 2, the fuel pins 1 (only one shown) have lower end caps 9, and each end cap has a waist 10, a cylindrical land 11 and a tapered end region 12 providing a lead-in surface for the fuel pin 1 in the cellular grids 8 during assembly. The lowermost cellular grid 8 has three radial projections 13 engaging the waist 10 to hold the fuel pin 1 captive with the end cap 9 in end abutment with a lower grid member 6. The projections 13 consist of elongate embossments of rhomboid form arranged with the major -diagonals parallel to the longitudinal axes of the fuel pin and they have tapered end regions 14 to provide a lead-in surface for the fuel pin entering a cell. The waist 10 and grid 8 are dimensioned such that the fuel pin 1 remains captive by the embossments 13 when the relatively low (e.g. 3 lb.f.) levitation force of coolant flow is applied but the embossments deflect to release the fuel pin when an axial load of, say 7 lb.f., is applied to the fuel pin. In an alternative embodiment (Fig. 4, not shown), the projections consist of leaf-springs (15) disposed with their longitudinal axes parallel to the longitudinal axes of the fuel pins. -The springs comprise formed strips of resilient material and are housed in slots in the grid structure, the spring ends being welded to the ends of the slit. In another construction (not shown) the projections consist of leaf springs comprising formed strips stamped from the grid structure.