baber/WOPTO huggingface dataset:
Patent GB-1330344-A (GB)
Title: Eopoxy resin vehicle for vesicular film
IPC: G03C5/60
Filed: 1970-10-15
Abstract: 1330344 Epoxy resin XIDEX CORP 15 Oct 1970 [15 Oct 1969] 49124/70 Heading C3B [Also in Division G2] A linear epoxy resin is prepared by refluxing resorcinol diglycidyl ether and resorcinol in ethanol and aqueous caustic soda and adding chlorobenzene. The organic phase is washed with water, diluted with dioxane, acidified with phosphoric acid and the resin precipitated by pouring the phase into isopropenol/methanol mixture. The resin was then dried in a vacuum oven. The material when mixed with a radiation sensitive nitrogen generating compound, is useful in the preparation of vesicular images.
Patent GB-1509475-A (GB)
Title: Method for the preparation of novolak epoxy resins
Inventor: LAZZERINI GIORGIO
IPC: C08G59/08
Filed: 1976-11-30
Abstract: 1509475 Epoxy novolac resins SOC ITALIANA RESINE SIR SpA 30 Nov 1976 [19 Dec 1975] 49981/76 Heading C3B Epoxy novolac resins are prepared by gradually adding an aqueous solution of alkali metal hydroxide (e.g. NaOH or KOH) into a solution in epichlorohydrin of a novolac resin of formula in which n=0-5; the ratio of moles of epichlorohydrin to equivalents of phenolic OH in the solution ranges from 2À5 : 1 to 12 : 1; hydroxide is added until the number of moles of hydroxide is substantially equivalent to the phenolic OH equivalents. The temperature is maintained at 60-80‹ C.,byadjustment of the reaction pressure, whilst water is distilled off in the form of an azeotropic mixture with epichlorohydrin, the distilled epichlorohydrin being recycled to the reaction mixture. The addition of hydroxide and the distillation conditions are adjusted so as to maintain, in the reaction medium, a water content of 0À5-2À5% by wt. and a pH value 7-8. Finally residual water is distilled off, e.g. at 100-250 mm.Hg, and the novolac epoxy resin is recovered.
Patent GB-1111139-A (GB)
Title: Method of production of dielectric titanium oxide
IPC: H01L49/02
Filed: 1966-11-09
Abstract: A coating of TiO2 is produced by simultaneously spraying a stream of TiCl4 in O2 and a stream of H2O in an inert gas on to a heated surface, the stream of TiCl4 surrounding the stream of H2O.  The temperature of the surface may be 150-250 DEG  C. and the distance between it and the spray nozzle may be 1-10 cms.  The streams may be formed by contacting O2 with the surface of liquid TiCl4, optionally diluted with HCl, and by bubbling the inert gas, e.g. Ar, through H2O, both liquids being at 25 DEG  C. The surface may be a crystalline semi-conductor, e.g. Si, or a conductive or semi-conductive film on an insulating carrier, e.g. of glass.  The TiO2 film is dielectric, and has a resistivity > 1010 ohms. cm.
Patent GB-1362859-A (GB)
Title: Heterocyclic quaternary salts and their use in photographic silver halide emulsions
IPC: G03C1/485
Filed: 1971-10-29
Abstract: 1362859 Polycyclic heterocyclic quaternary salts EASTMAN KODAK CO 29 Oct 1971 [30 Oct 1970] 50340/71 Heading C2C [Also in Division G2] The invention comprises a compound of the formula wherein Z represents the non-metallic atoms necessary to complete an unsubstituted or substituted heterocyclic nucleus containing a 5- or 6-membered heterocyclic ring including the quaternary nitrogen atom, the additional atoms of said ring being selected from C, N, O, S and Se atoms, each of R<SP>1</SP> and R<SP>2</SP> is H, alkyl which may be substituted or aryl, n is 1 or 2 and R, when n is 1, is H, alkyl or alkoxy which may be substituted, carbalkoxy, aryl, aryloxy or carbamido, or, when n is 2, is a C 1  to C 4  alkylene group and X- is an anion. They may be obtained by heating in an inert organic solvent therefor of moderate polarity, a quaternary salt of the formula to effect ring closure. Examples are given for the production of the compounds. They are useful as fogging agents for photographic silver halide emulsions.
Patent GB-1427660-A (GB)
Title: Cadmium-antimony-lead-alloy for maintenance free lead-acid battery
IPC: H01M4/68
Filed: 1974-11-26
Abstract: 1427660 Lead-acid batteries GOULD Inc 26 Nov 1974 [5 Dec 1973] 51069/74 Heading H1B [Also in Division C7] A lead based alloy comprising Sb 1À0 to 1À9, Cd 1À2 to 2À0, Pb balance plus impurities with the Cd being at least equal to the Sb content, is used as a component for lead-acid storage cells, particularly as grids in maintenance-free cells. The alloy may be cast into moulds held at 165-233 C. from 388-455 C. without cracking, producing grids of satisfactory mechanical strength and corrosion resistance. Batteries utilizing grids 20 of the invention have good electrical cycling and charge retention characteristics. The alloys can also be used to form straps 24 intercell connectors 26 and terminal posts 14. A vent 34 is provided.
Patent GB-1089664-A (GB)
Title: Improvements in organopolysiloxanes and their production
IPC: C08G77/00
Filed: 1964-12-16
Abstract: An arylpolysiloxane having an intrinsic viscosity in benzene at 25 DEG  C. of at least 0.05 dl./g. and the configuration <FORM:1089664/C3/1> wherein each R is an aryl radical and n is at least 25, can be made by hydrolysing a polysiloxane having a greater number of recurring units than the above formulated polymer and an intrinsic viscosity in benzene at 25 DEG  C. of at least 0.1 dl./g., the hydrolysis being effected in the presence of water, a basic amine catalyst and tetrahydrofuran as solvent.  Catalysts specified are piperidine, 1,4-diazobicyclo-2,2,2-octane, triethanolamine, tetramethylguanidine, ethylenediamine and cyclohexylamine.  In a typical Example (1) a phenylsilsesquioxane ladder polymer was dissolved in tetrahydrofuran and glacial acetic acid (to neutralize polymerization catalyst); water, piperidine and tetrahydrofuran were then added with stirring and after 20 mins. at 22-24 DEG  C. the hydrolysis was stopped by adding glacial acetic acid; benzene was then added and the mixture was poured into water, allowed to separate into 2 layers and the upper layer was separated, washed with aqueous citric acid and then with water and the product was precipitated from the benzene solution with methanol and purified to yield a polymer of the above formula wherein R is phenyl and n is 190.
Patent GB-1415314-A (GB)
Title: Film cutter for dynamic tomography
IPC: A61B6/02
Filed: 1972-11-08
Abstract: 1415314 Tomography CFC PRODUCTS Inc 8 Nov 1972 [26 Nov 1971] 51557/72 Heading H5R In a method of dynamic tomography successively exposed films 20, 30, 40 are stacked on top of one another in a viewer 50 and successive planes of interest are brought into focus by relatively displacing the films in the directions of guides 52, 54 by cams 58, 60 acting on edges of the film resulting from the cutting of rectangular films into parallelograms with an appropriate angularity, and the invention is concerned with a cutter for readily obtaining the correct shape of film. The cutter, Fig. 6, comprises a film support table 64 having a fiduciary line 66 thereon, this being aligned with indicia A, B on the film produced by two lead balls aligned with the direction of movement during tomography, and cutting edges 70, 72 for cutting the film along lines 74, 76 parallel to line 66. To cut the other sides of the parallelogram, carriers 78, 82 are slidably mounted on ways 80, 84 and are pivotally linked by a cutting guide 86. A pointer 96 on carrier 82 is aligned with a reference mark C produced during exposure by a, lead ball not in the same plane as those providing indicia A and B and therefore the position of C relative to A and B is indicative of the exposure angle. A pointer 94 on carrier 78 is aligned with point A and the cutting guide 86 will then lie along the correct cutting line 102 and a similar cutting guide (not shown) is arranged to lie along the line 104, thus enabling the parallelogram to be correctly formed. A detailed description of a practical machine based on the principle shown in Fig. 6 is described with reference to Figs. 7 to 24 (not shown) including the mounting of the cutters, the provision of vacuum platens for holding the film in position, an arrangement for moving the film support between two planes for cutting each opposite pair of sides to avoid intersecting cutting edges at the corners and an automatic arrangement of microswitches and vacuum control valves for moving, securing and cutting a film in a pre-set sequence.
Patent GB-1525280-A (GB)
Title: Watersoluble disazo dyestuffs based on triaminotriazine
IPC: C09B33/06
Filed: 1975-12-17
Abstract: 1525280 Water-soluble disazo dyestuffs based on triaminotriazine SANDOZ Ltd 17 Dec 1975 [20 Dec 1974] 51578/75 Heading C4P Novel dyestuffs have the formula wherein R, and R 11  are each H, CH 3 , OCH 3 , Cl, NHCOCH 3  or NHCONH 2 ; R 2  and R 12  are each H, CH 3  or OCH 3 ; R 3  and R 4  are each H, C 1-4  alkyl, C 2-3  hydroxyalkyl or hydroxy-C 2-3  alkoxy-C 2-3  alkyl, but are not both H; each M is independently H, Li, Na, K, NH 4 <SP>+</SP>, NH 2 <SP>+</SP>R 3 <SP>1</SP>R 4 <SP>1</SP> or N<SP>+</SP>R 5 R 6 R 7 R 8 ; R 3 <SP>1</SP> and R 4 <SP>1</SP> are defined as R 3  and R 4 ; R 5  is H, C 1-4  alkyl or C 2-3  hydroxyalkyl; R 6 , R 7  and R 8  are each C 1-4  alkyl or C 2-3  hydoxyalkyl; and m, n, p and q are each 1 or 2. They are prepared by condensing a cyanuric halide with the appropriate amines used in any order. Preferably an intermediate of the formula is prepared and is then reacted with NHR 3 R 4 . The novel anionic dyestuffs are used to dye cellulosic substrates, e.g. cotton and paper, and leather.
Patent GB-1184474-A (GB)
Title: Improvements in or relating to Extruders
IPC: B29C48/465
Filed: 1967-02-10
Abstract: 1,184,474. Extruding. ROTARY PROFILE ANSTALT. 10 Feb., 1967 [14 Feb., 1966], No. 51595/69. Divided out of 1,184,471. Heading B3P. [Also in Division B5] A material 350, which is capable of plastic deformation under high pressure, is extruded from a body 351 by means of rollers 354 which bear down on the material as they roll on its surface. The rollers are backed by a member 359 having a conical rolling surface. The material, which is preferably granular, is fed through a shoot 352. A tube, as shown, can be extruded, but removal of a central core 356 allows the extrusion of rod or wire. Heating induction coils 353, and tubes 357 for the flow of coolant, are provided in the body.
Patent GB-1076580-A (GB)
Title: Force measuring apparatus
IPC: G01L1/22
Filed: 1964-12-18
Abstract: 1,076,580. Measuring electrically. REVERE CORPORATION OF AMERICA. Dec.18, 1964 [Dec. 24, 1963], No. 51687/64. Heading G1N. A load cell comprises at least two generally parallel flexible members connected at one end by a bridging piece; to the other end of one member the force to be measured is applied, and the reactive force operates on the other end of the other member, both forces acting in parallel lines off-set from the centres of gravity of the members, so as to apply bending moments thereto. A plurality of strain gauge resistors mounted on or attached to the flexible members are connected in an A. C. or D. C. network so that their resistance variations, corresponding to the tensile and compressive strains set up in the members under load, affect the output of the network in a cumulative manner. In Fig. 1, two flexible members 1f, 1h, are formed integrally with a bridging member 1g from a block 1, e. g. of steel, by forming cylindrical apertures 1a, 1c, and slots 1b 1d therein. The force to be measured is applied via a column 15 which passes through a vertical aperture 1m in bridge 1g to a foot member 1k integral with flexible member 1h the reactive force acts upwardly on a base 1e integral with flexible member 1f. Strain gauges 2, 3 and 4, 5 are bonded to the inner surfaces of members 1f, 1h respectively, at the narrowest parts thereof, and are connected to form a Wheatstone bridge arrangement, which, in addition to compensating for ambient temperature variation, is said to nullify the Poisson's ratio component of resistance variation when 1f is compressed and 1h is stretched under load. In a modification Fig. 4 (not shown) strain gauges bonded to inner and outer surfaces of the flexible members are connected into a first bridge circuit, and further strain gauges bonded (two axially, two circumferentially) to the column (15) form a second bridge circuit, to permit measurement of forces of such magnitude that the foot (1k is arrested by abutment with the base (1e). In a pressurecompensated embodiment Fig. 12 (not shown) a flexure (52) is contained in a cylindrical housing (45) sealed at each end by pressure-deflectible diaphragms (46, 48). The flexure (52) comprises two flexible members (52c, 52d) joined by a bridge (52e), one flexible member (52d) being fixed to the housing, on which the reactive force acts, while the other flexible member (52c) receives the test-force via an axial column (59a, 59b) extending between and beyond the diaphragms. Connections from the strain gauges (53... 56) are passed through an insulating plate (64) in the housing wall into a junction box (65). Fig. 13 (not shown) depicts a load cell according to the invention adapted to measure fluid-pressure; and in Fig. 14 (not shown), a load cell in the form of an inverted W comprises four flexible members (86... 89) with strain gauges (78... 85) bonded to their surfaces. An embodiment utilizing unbonded strain gauges is illustrated in Figs. 7...10 (not shown).
Patent GB-1489905-A (GB)
Title: Material handling implements
IPC: E02F3/96
Filed: 1974-12-04
Abstract: 1489905 Excavator buckets; rippers MASSEY-FERGUSON INC 4 Dec 1974 [6 Dec 1973] 52364/74 Headings E1F and E1G An excavator bucket has a pair of ripper members 39 which extend through bottom plate 21. The ripper members are arranged so that the distance from the pivot, connecting the bucket to the dipper stick 13, to the cutting edge 27 is greater than the distance from the pivot to the tips of the ripper from the latter having teeth 42 mounted thereon. Channel members 31 enclose the parts of the ripper members within the bucket and the ripper members are removably secured to the side walls of the bucket.
Patent GB-1114686-A (GB)
Title: Packaging machine
IPC: B65B11/10
Filed: 1966-04-29
Abstract: 1,114,686. Packaging-machines; packages. WEYERHAEUSER CO. 29 April, 1966 [25 Feb., 1966], No. 52592/67. Divided out of 1,114,685. Heading B8C. The subject-matter is substantially identical to that of Specification 1,114,685, and the claim relates to the looking means thereof.
Patent GB-1524575-A (GB)
Title: Pivot assembly
IPC: E05D7/086
Filed: 1976-11-29
Abstract: 1524575 Pivots for outer and inner frames G & E ENG Ltd 29 Nov 1976 [23 Dec 1975] 52700/75 Heading E2F A pivot for outer and inner frame members, e.g. movable and fixed window frames 26, 28, comprises two components 1 and 3 pivotably joined about a spindle 31 and having confronting faces formed with projections 23 and recesses 25 which interengage to limit the extent of angular movement. As shown in Fig. 2 projecting bars 23 are provided on the component I and these can move only in one direction in recesses 25 formed in the component 3 until the components have moved through 90‹ then the ends of the bars engage the ends 27 of the recesses (Fig. 3) to prevent further movement. Each component is of moulded plastics and 1, 3 is slotted at 7 and can be frictionally engaged about the spindle 31 by screws (not shown) in holes 9. A bolt 32 extends through the spindle 31 to hold the pivot together and the spindle is formed from an inner plastics core 35 and an outer press fit sleeve of wear resistant material such as stainless steel.
Patent GB-1446608-A (GB)
Title: Code detector
IPC: H04Q11/04
Filed: 1973-11-13
Abstract: 1446608 Code conversions L M ERICSSON PTY Ltd 13 Nov 1973 [13 Nov 1972] 52729/73 Heading G4H [Also in Division H4] A code detector comprises a store (102) adapted to receive as an input (A1) a stream of bits and is arranged to read out the contents of one of two first locations in response to the first received bit, to use the read-out data (bits B1 to B6) and the second bit of the stream to address a second location and so on until either a complete code is detected or it is determined that the incoming code is not one to which the detector is set. As described if any one of sixteen particular 3 out of 15 codes are received an output B7 is enabled by the last selected location in each case to gate the four bit identity of that code into buffer 104. The same code is transmitted many times, a comparator 107 responds only if the input and output of buffer 104 are the same, i.e. if the same code is detected on two consecutive transmissions, a counter 106 counts the number of times this occurs, a counter 108 responsive to the start address counts the number of codes tested and a logic block 109 gives an output if a predetermined n out of m codes increment counter 106. None of the codes have three consecutive one bits and if three such one bits are received an output B8 is produced enabling an inverter 105 which inverts the incoming bit stream to test for inverted data. The arrangement may be used as a digit detector in the PABX described in Specification 1,446,609 and if used as part of a scanner may include a last look store so that only code changes are detected.
Patent GB-1243359-A (GB)
Title: Detection of small displacements
IPC: G01B9/02
Filed: 1968-11-08
Abstract: 1,243,359. Light modulators. COMPAGNIE GENERAL D'ELECTRICITE. 8 Nov., 1968 [10 Nov., 1967], No. 53164/68. Heading H4F. [Also in Divisions G1 and G2] Small displacements are detected by coupling them to one mirror of a Fabry-Perot interferometer, detecting the intensity of light passing through or reflected from the interferometer, feeding back a signal to a transducer tending to keep the variations in mirror spacing less than #/4 and using the fed back signal as an indication of the displacements. The interferometer 1, which is illuminated by a He-Ne laser 4, comprises mirrors 8 and 9 coupled to a piezoelectric ceramic or magnetostrictive cylinder 16 rigidly and by a diaphragm 11 respectively. The light intensity emerging at 10<SP>1</SP> or 10<SP>11</SP> is measured by a photo-cell 12 and compared with a reference signal from a photocell 7 and any difference energizes the cylinder 16 to reduce the difference. The laser may be modulated at a high frequency to facilitate amplification, the high frequency signal being filtered out of the feed back loop. Microphones.-Sound vibrations incident upon the mirror 9 produce corresponding signals at the output S. For high frequency response the interferometer is supported at the mirror 8 end and is vented to the atmosphere. For low frequency response, it is supported at the other end; fluid-tight and provided with a smaller aperture diaphragm. The device may be used as an accelerometer by using the mirror 9 or a body attached thereto as seismic mass.
Patent GB-1136220-A (GB)
Title: An improved method for rendering paper translucent
IPC: G03C1/785
Filed: 1965-12-17
Abstract: 1,136,220. Paper. SCHOELLER G.m.b.H. [trading as FELIX SCHOELLER J.R.] 17 Dec., 1965 [26 Oct., 1965], No. 53658/65. Heading D2B [Also in Division G2] Transparent paper is made by applying to a base paper a hydrocarbon thermoplastic terpene resin having a melting point of 10‹C. This resin is preferably composed of polymers of pinene, especially # pinene, The resin can be applied to the paper as a solution, e.g. in ketones, esters or aromatic hydrocarbons, or as an emulsion and worked into the paper in the paper making machine or the finished paper. Up to 70% by weight of the resin can be replaced by waxes, oils, natural or synthetic resins and plasticisers. The base paper may consist of cellulose fibres, synthetic fibres or a mixture thereof. The treated paper can be calendered. In the Example a photographic base paper is treated with the resin solution, dried, and optionally calendered.
Patent GB-1065907-A (GB)
Title: Improvements in or relating to tuning arrangements for voltage tunable circuits
IPC: H03L7/181
Filed: 1965-12-17
Abstract: 1,065,907. Digital-to-analogue converters. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Dec. 17, 1965 [Dec. 19. 1964], No. 53667/65. Heading G4H. A tuning arrangement for a voltage tunable circuit comprises a digital counter (Fig. 4, not shown) which makes a count representing the frequency of the oscillator (1), and means (6a-6e) for converting each decade value to an analogue form for comparison with a similar signal representing the desired frequency, the comparator outputs (5a, 5o<SP>1</SP>-5e, 5e<SP>1</SP>) causing resistors to be switched into the charging circuits of capacitor 3 to control the frequency of the oscillator. The desired frequency is stored in digital storage units (9a-9e) and converted (8a-8e) to an analogue comparison signal. The arrangement is such that an error output on one of the comparators operates a high or low switch (So, Sa<SP>1</SP> &c.) the effect of which is to change the frequency to remove -the error.
Patent GB-1412900-A (GB)
Title: Motor vehicle having mounting means connecting a steering gear to a vehicle frame component
IPC: B62D3/00
Filed: 1973-11-20
Abstract: 1412900 Steering vehicles FORD MOTOR CO Ltd 20 Nov 1973 [5 Dec 1972] 53811/73 Heading B7H A rack and pinion steering gear assembly 10 is secured to a cross member 12 of a vehicle 12 by resilient bush assemblies 32, 34, 36 which isolate noise and vibration originating in the steering or transmitted to the steering gear by the steering linkage. A tubular housing 18 of the assembly 10 has a bracket 38 fitted on a resilient bush 42 bonded to a metal sleeve 44. A bolt 46 extends through the frame 12 and bush 42, washers 48 and 50 being interposed between one end of the bush 42 and frame and the opposite end under nut 52. The assemblies 34 and 36 are similarly constructed. The assemblies 32, 34 and 36 have greater resilience as regards deflection parallel to the longitudinal vehicle axis than in a direction perpendicular thereto.
Patent GB-1486333-A (GB)
Title: Process for producing magnesium oxide
IPC: C01F5/12
Filed: 1974-12-13
Abstract: 1486333 Magnesium oxide METALLGESELLSCHAFT AG 13 Dec 1974 [21 Feb 1974] 54034/74 Heading C1A Magnesium oxide is produced from a magnesium-containing carbonate ore by, (a) leaching the ore with H 2 SO 4  to form magnesium sulphate, (b) subsequently neutralizing any surplus H 2 SO 4  with magnesium oxide, (c) separating the undissolved impurities from the solution, (d) crystallizing the magnesium sulphate under superatmospheric pressure and at a temperature above 150‹ C (e) separating the resulting crystals under such conditions that subsequent cooling results in a magnesium sulphate of composition MgSO 4 . 1À5-4 H 2 O (f) bringing the magnesium sulphate to such a particle size that it is suitable for decomposition in a fluidized bed, (g) heating the magnesium sulphate in a suspension-type-heat-exchanger, optionally to effect dewatering, (h) decomposing the magnesium sulphate in a fluidized-bed reactor to form magnesium oxide and sulphur dioxide, and feeding the exhaust gases from the fluidized bed reactor to the suspension-typeheat-exchanger, (i) feeding the reaction product from the fluidized-bed reactor to a multi-stage fluidized-bed cooler, which is operated with air as a fluidizing gas, (j) feeding the hot fluidizing air leaving the fluidized-bed cooler to the fluidized-bed reactor, (k) generating the extra heat required for the reaction by an approximately stoichiometric complete combustion of fuel (to CO 2  and H 2 O), which has been changed into the fluidized-bed reactor. (1) recovering H 2 SO 4  from the SO 2  produced in the decomposition step, and (m) recycling the H 2 SO 4  to the leaching stage.