baber/WOPTO huggingface dataset:
Patent GB-1200005-A (GB)
Title: Micrometer screw gauges
Inventor: JEANNET JEAN-PIERRE
IPC: G01B3/18
Filed: 1968-11-15
Abstract: 1,200,005. Micrometer. TESA S.A. Nov.15, 1968 [ Feb.19, 1968], No.54348/68. Heading G1M. A micrometer screw gauge comprises a reading drum 4 in direct engagement with the micrometer screw, a non-rotatable sleeve 7 which surrounds the reading drum and moves axially with it, a main scale on the cylindrical portion 3, the graduations of which are off-set from one another normal to the axis in a plurality of measuring groups, the edge 8 of the sleeve serving as an index for the main scale, and a sub-divided scale on the reading drum which is visible through a window in the sleeve and is used in conjunction with a fixed mark 9 on the sleeve, the sub-divided scale comprising graduations parallel with the drum axis in a plurality of measuring groups each comprising a sequence of various lengths. Fixed mark 9 may be replaced by a vernier scale Fig. 2, (not shown). Two manually adjustable reference pointers 11 may be provided on drum 4, and a magnifying inset 10 is used for reading the sub-divided scale.
Patent GB-1306988-A (GB)
Title: Reaction vessels for the preparation of semiconductor devices
IPC: C03B20/00
Filed: 1970-11-17
Abstract: 1306988 Semi-conductors SIEMENS AG 17 Nov 1970 [18 Nov 1969] 54533/70 Heading H1K [Also in Division C1] Reactor vessel for diffusion and oxidation processes on S/C crystals comprises a quartz tube lined with a passivating layer wholly or partially of silicon nitride formed by pyrolysis of a gaseous compound e.g. silane, ammonia, nitrogen mixture to which methane may be added, or the vapour of tetrakisdimethylaminosilane, or methylaminosilane, or mixture of silicon and carbon halides with ammonia; the closed and pressure vented tube being filled with the appropriate gas mixture and high frequency or resistance heated to 1000- 1200 C. Alternatively a gas injection tube terminates at 2 in a nozzle ring 3 opposed to an inwardly directed burner 4 whose nozzles are directed inwardly to the quartz tube, which is heated to 800-900 C. and is moved slowly past the burner while the gas mixture is admitted, and enters a further heat treating tube furnace 10 at 1200 C. where it remains after the gases are cut off; so permitting external heating of the tube without evolution of impurities. The layer may be a mixture of silicon nitride and carbide.
Patent GB-1151782-A (GB)
Title: Photographic silver halide emulsions
Inventor: BERRIMAN ROBERT WILLIAM
IPC: G03C1/485
Filed: 1966-04-15
Abstract: 1,151,782. Photographic silver halide materials. EASTMAN KODAK CO. April 15, 1966 [April 15, 1965], No. 54615/68. Divided out of 1,151,781. Heading G2C. A photographic silver salt emulsion is made by forming cores comprising grains of a first lightsensitive silver salt, treating the cores with an iridium salt and then covering the cores with a layer of a second light-sensitive silver salt. The silver salts may be halides or the thiocyanate, phosphate, cyanide or carbonate. The treatment with the iridium salt may be effected by adding an aqueous solution of the salt to an emulsion containing the grains of the first silver salt. The shells are then formed on to the cores by precipitating the second silver salt in the presence of the cores, or by allowing the cores to ripen in the presence of a previously prepared emulsion of the second silver salt. The specified iridium salt is potassium chloroiridite. After coating on to a support, the emulsion may be used to give a direct positive image by overall fogging with light followed by an imagewise exposure and processing. . Reference has been directed by the Comptroller to Specification 1,011,062.
Patent GB-1334883-A (GB)
Title: Electrophotographic developing apparatus
IPC: G03G15/10
Filed: 1971-11-24
Abstract: 1334883 Liquid developing apparatus FUJI PHOTO FILM CO Ltd 24 Nov 1971 [25 Nov 1970] 54643/71 Heading G2H A sheet bearing an electrostatic latent image is transported along a path by pairs of rollers and sprayed with developer liquid via the rollers; the rollers which face the imaged surface being predominantly insulating over a first part of the path so that development initially takes place with little or no development electrode effect and being predominantly conductive over the rest of the path so that development is continued under the influence of development electrodes it is stated that this produces uniform, streak-free development. As shown, rollers 31-1, 31-2 are insulating or metal coated with insulator and all the other rollers are conductive. To produce a gradual transition from insulating to conductive the initial rollers may bear insulating coatings which decrease in thickness or resistivity in the direction of sheet transport. Alternatively, the roller-image spacing may decrease.
Patent GB-1333094-A (GB)
Title: Method and apparatus for the determination of exposure values
IPC: G03B27/73
Filed: 1970-11-17
Abstract: 1333094 Photographic printing control AGFA-GEVAERT A G 17 Nov 1970 [17 Nov 1969] 54651/70 Heading G2A The exposure required to reproduce a photographic transparency is determined by ascertaining for each of a plurality of sections of equal area the mean transparency of the areas, deriving from the mean transparencies values characteristic of substantially the whole of the original and comparing these characteristic values with corresponding given values to give an exposure value that includes a density correction, the characteristic values comprising the mean transparency of the original as a whole and one or more of the following: the number of sections having a mean transparency greater than the mean value of the transparency of the original as a whole, the number of sections having a mean transparency less than the mean value of the transparency of the original as a whole, the mean transparency of the section having the highest mean transparency, the mean transparency of the section having the lowest mean transparency and the difference between the mean transparency of the sections having the highest and the lowest mean transparency. Each area illuminates one of a plurality of photovollaic cells 15 each connected to an operational amplifier 16 bridged by a variable resistor 17 for setting the sensitivity. The output of each amplifier is connected to a common line 19 connected to the input of a summation amplifier 20 so as to produce at the output of an amplifier 22 a mean value T of the transparency of the whole original. The outputs of the amplifiers 16 are also connected to a common lead 24 through individual diodes 23 to produce a voltage in lead 24 corresponding to the smallest individual signal, and the output of each amplifier 16 is connected to one input of one of a plurality of comparison amplifiers 25, the other input of each comparison amplifier receiving the output T of amplifier 22. The outputs of each comparison amplifier 25 is fed via individual diodes 27 to a common lead 28 so that the number n 2  of measured sections having mean transparencies below the mean transparency of the whole amplifier can be determined. The various signals are then fed to a series of comparison amplifiers 31-37, where the number n 2  is compared with half the total number of sections N/2, with N/ 2 + a, and with N/2-b, where a, b are constants, e.g. N/10, where the minimum measured transparency is compared with a limit value c, and where the mean original transparency T is compared with a value d corresponding to the mean transparency of a calibration negative. The output of amplifiers 31-37 is connected to a decoder 40 and assigns one of sixteen possible catagories to an output 42. Resistors 41 influence the degree of deviation from the reciprocity law.
Patent GB-1468306-A (GB)
Title: Magnification changing device
IPC: G02B/
Filed: 1974-12-23
Abstract: 1468306 Interchangeable lenses MINOLTA CAMERA KK 23 Dec 1974 [22 Dec 1973] 55546/74 Heading G2J Three lenses 1, 2, 3 e.g. of different magnificcations in a document copying apparatus are selectively movable so that one of them lies on axis LL'. Lenses 1 and 2 are moved by their own drive means, e.g. reversible electric motors and endless wires on pulleys, whereas len 3 is provided with means to follow the movements of lenses 1, 2. In Fig. 1, lens 3 is urged towards the left by spring 6 but can be displaced towards the right by stops 4, 5 on lenses 1, 2.
Patent GB-1294769-A (GB)
Title: Process for producing cytidine diphosphate choline
IPC: C07H19/10
Filed: 1970-11-23
Abstract: 1294769 Cytidine diphosphate choline ASAHI KASEI KOGYO KK 23 Nov 1970 [26 Nov 1969] 55552/70 Heading C2P Cytidine diphosphate choline is produced by applying an enzyme, contained in the cells of a micro-organism having a fructose-1,6-diphosphate producing ability from carbohydrates of at least 20% by weight of inorganic phosphate consumption in 5 to 8 hours, to a liquid medium containing 5<SP>1</SP>-cytidylic acid, a salt thereof, cytidine or cytosine, together with choline, a salt thereof or phosphatidyl choline, and a phosphoric acid donor, a carbohydrate and a magnesium salt. The phosphoric acid donor may be sodium phosphate, potassium dihydrogen phosphate or dipotassium hydrogen phosphate, the carbohydrate may be glucose, sucrose, fructose or maltose, and the magnesium salt may be the sulphate or chloride., The enzyme may be used in the form of a culture medium of the microorganism, cells thereof, dried cells, cell extracts or ground cells. Suitable micro-organisms are (a) yeasts of the Brettanomyces, Torulopsis, Candida, Saccharomyces, Zygosaccharomyces, Debaryomyces and Pichia genera, (b) bacteria of the Microbacterium, Corynebacterium and Brevibacterium genera and (c) fungi of the Mucor and Aspergillus genera. The reaction may be carried out at 20-45‹ C. at pH 6 to 9. Small amounts of cytidine-5<SP>1</SP>-triphosphate and cytidine-5<SP>1</SP>-diphosphate may also be produced.
Patent GB-1273409-A (GB)
Title: Automatic equaliser for correcting variations in attenuation
IPC: H04B3/10
Filed: 1969-11-14
Abstract: 1,273,409. Pilot controlled a.g.c. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 14 Nov., 1969 [16 Nov., 1968], No. 55933/69. Heading H4R. Equalizer for correcting variations in the frequency dependent attenuation of transmission lines includes a regulating network having a series resistance and a shunt resistance, the shunt resistance comprising a frequency dependent network terminated by the source to drain path of a FET whose gate is fed with a voltage derived from a comparison circuit. As described the FET Ts1 has its source drain path connected to terminate a four terminal network VP connected in series with a resistor R2 in shunt across the signal path following a resistor R1. The control voltage for the gate of the FET is derived from the output signal of the path via a pilot filter, not shown, and a peak rectifier constituted by the normally biased off transistor Ts2.
Patent GB-1382598-A (GB)
Title: Recording apparatus
IPC: G11B15/087
Filed: 1972-12-06
Abstract: 1382598 Magnetic tape recording apparatus INTERNATIONAL BUSINESS MACHINES CORP 6 Dec 1972 [30 Dec 1971] 56182/72 Heading G5R Data blocks 7, 9 on magnetic tape 1 have recorded therewith log marks 13, 14, the record apparatus including a direction indicator 15 which indicates the direction of the last-recorded log mark 14 relative to the magnetic head 16; log marks prior to the last-recorded one being erased when the tage drive is reversed. Since each data block also has recorded therewith a complete machine log 8, 10 giving the allocation of data to tape blocks as at the time of writing of the respective block, the last-recorded log mark indicates the position of the up-to-date machine log. The direction indicator is a mechanical switch. As described, the system is as in Specification 1,341,526 (Heading G4H) and includes a typewriter for entering test to be recorded on a tape which is disposed in cassette and has perforations 2 between each data block. The perforations are sensed and counted.
Patent GB-1336198-A (GB)
Title: Extruding machines for plastics
IPC: B29C48/09
Filed: 1971-12-03
Abstract: 1336198 Discharge treatment of plastics J WALTER 3 Dec 1971 [11 Dec 1970] 56254/71 Heading H1X [Also in Division B5] To improve adhesion to its surface a thermoplastics sheet 5 is treated, while it is being extruded through a die passage 4, with a corona discharge created by a high voltage (e.g. 30,000 volts) between one die member 3 and an electrode 10 attached to an insulating block 7 fitted into a recess 6 in the other die member 2, discharge to die member 2 being prevented by an insulated guard 13. The die members 2, 3 are earthed and may have parallel or co-axial faces.
Patent GB-1181467-A (GB)
Title: Circuits
IPC: H03K19/086
Filed: 1968-11-28
Abstract: 1,181,467. Switching circuit. INTERNATIONAL BUSINESS MACHINES CORP. 28 Nov., 1968 [26 Dec., 1967], No. 56416/68. Heading H3T. A transistor 18 having an emitter resistor 19 has its emitter connected to one input of an amplifier 21, 22, whose output is connected back to the base of transistor 18 thereby regulating the voltage at its emitter, this voltage adopting one of two levels according to whether or not a voltage drop is inserted between transistor 18 emitter and transistor 22 base such as by current flow through a resistor 36 to a transistor 27. The transistor 27 and further transistor 29, 30 form a current switch in which coincidence of negative inputs to 29 and 30 cause the normally off transistor 27 to turn on, and to produce the voltage drop across the resistor 36 and an increase in current flow in transistor 18. This higher current, supplied to the emitters of the transistors of one column of a matrix, causes that transistor 12 to be selected to which a base voltage is applied, as to other transistors in its row, from a transistor 18a emitter 20a associated with a similar circuit arrangement to that of transistor 18. When transistor 27 is non-conductive, the current through either or both of transistors 29, 30 flows through resistor 26, and the voltage at transistor 18 emitter falls and its current flow is reduced to a very low but not zero value. This assists rapid turn-on.
Patent GB-1197968-A (GB)
Title: Ac-to-Regulated DC Converter
IPC: H02M7/217
Filed: 1967-12-12
Abstract: 1,197,968. Automatic voltage control. B. STEFANOV. Dec.12, 1967, No. 56455/67. Heading G3R. In a power supply circuit of the type including a regulator providing a stabilized D. C. output derived from the voltage on a storage capacitor, the capacitor is charged from a series of narrow pulses derived from an A. C. supply by way of a switch which is rendered conductive, for a predetermined time in each half cycle of the A. C. input voltage, by a control pulse occurring in the rising portion of the input sine wave half cycle, the position of the control pulse relative to the said rising portion being determined by the regulator output voltage and the A. C. input voltage, so that when the switch closes the capacitor is charged to a voltage only slightly greater than the regulated D. C. output voltage, thereby minimizing heat dissipation in the regulator. As shown, a storage capacitor C1 is charged from A. C. terminals 13a, 13b, by way of a switch 10, constituted by transistors Q1, Q2, associated with diodes D1, D2 so arranged as to permit the control of alternating current, a transformer T1 and diodes D3, D4, and the voltage on the capacitor C1 is applied to a conventional regulator 12, e.g. of the series type, which provides a stabilized D.C. output voltage on terminals 14a, 14b. A voltage representative of the D.C. output voltage is derived from a voltage divider 34, 35 and is applied to the base of a transistor Q4 which is associated with a further transistor Q3 to the base of which is applied a voltage which is representative of the A. C. input voltage and which is derived from the terminals 13a, 13b by way of a transformer T2 and diodes D5, D6. Transistors Q4, Q3 form a comparator circuit the output from which is applied, by way of further circuitry including transistors Q5, Q6, Q7, and Q8, to render the switch 10 conductive for a predetermined time interval during the rising portion of each A. C. input half cycle, the resulting current pulses being applied over transformer T1 and diodes D3, D4, to charge the capacitor C1. Thus, if the input voltage is high relative to the output voltage, the current pulse occurs early in the input half-cycle, and vice-versa; this results in the capacitor C1 being charged to a voltage only slightly greater than the D.C. output voltage so that the transformer T1 may be smaller than that normally required, and the losses in regulator 12 are minimized.
Patent GB-1319506-A (GB)
Title: Compsitions containing iron chelates
IPC: C05D9/02
Filed: 1970-11-27
Abstract: 1319506 Fertilizers containing iron chelates CIBA-GEIGY AG 27 Nov 1970 [28 Nov 1969] 56520/70 Heading C1B [Also in Division C2] Iron deficiency chlorosis in plants is treated by a stabilized iron-chelate composition comprising an iron chelate obtained from an ethylene-diamine diphenyl-acetic 'acid or a salt thereof by complexing with iron in a ratio of acid molecule to iron atom of about 1 : 1 which chelate is of the probable formula where R<SP>1</SP>, R 2 , R 3  and R 4  are H, alkyl of 1-5 carbon atoms or hydroxyalkyl of 1-3 carbon atoms of R 3  and R 4  are together alkylene of 3-6 carbon atoms, X 1  to X 8  are H, alkyl of 1-12 carbon atoms, OH, NO 2 , CN, alkoxy of 1-8 carbon atoms, Cl, Br, I, COOM, SO 2 H or -N(Y 1 )Y 2  where Y 1  is H, alkyl of 1-4 carbon atoms, hydroxyalkyl of 2-4 carbon atoms, alkanoyl or alkenoyl of at most 8 carbon atoms and Y 2  is H, alkyl of 1-4 carbon atoms or hydroxy alkyl of 2-4 carbon atoms, each of.M and M<SP>+</SP> are H an alkali metal or a cation of the formula where Y 3 , Y 4 , and Y 5  are H, alkyl of 1-4 carbon atoms or hydroxyalkyl of 2-4 carbon atoms or Y 3  and Y 4  and the nitrogen atom represent pyrrolidino, piperidino, morpholino, 1-piperazino or 4-methyl-1-piperazino and in sufficient amount to stabilize the chelate a compound of the formula where R is H, hydroxy, alkyl of 1-8 carbon atoms or alkoxy of 1-8 carbon atoms, R<SP>1</SP> is H, C1, alkyl of 1-5 carbon atoms or SO 3 M, R<SP>11</SP> is H, Cl, OH, alkyl of 1-5 carbon atoms, alkoxy of 1-8 carbon atoms or COOM, R<SP>111</SP> is H, Cl, OH, alkyl of 1-5 carbon atoms or alkoxy of 1-8 carbon atoms and R<SP>11</SP> is H or alkyl of 1-5 carbon atoms.
Patent GB-1294757-A (GB)
Title: Dynamoelectric machine
IPC: H02K5/14
Filed: 1970-12-04
Abstract: 1294757 Brush-holders for dynamoelectric machines FORD MOTOR CO Ltd 4 Dec 1970 [29 Dec 1969] 57676/70 Heading H2A In a dynamoelectric machine comprising a frame 14 included in a stator 10 within which is rotatably mounted a rotor 12 comprising a commutator 36 having both a generally cylindrical portion 38 whose axis is parallel with the stator axis and a riser portion 40 extending radially from the cylindrical portion, there is provided a brush-holder 42 having brushes 80 positioned in slots 46 extending radially outwardly from a central opening 44 through which extends the commutator cylindrical portion, the holder being positioned by co-operating means on the frame and the brushes having their movement limited in the two axial directions by the riser portions 40 and means which include an insulating washer 86. Thus, to assemble, with the machine vertical, the brushes are inserted axially from the top, whereupon the washer 86 and an end bell 20 are lowered and secured in position by through bolts 22. Springs (78), Fig. 3, urge the brushes 80 to engage the commutator, and the end bell 20 is located in the frame 14 by struck-in tabs 32.
Patent GB-1414980-A (GB)
Title: Thiolophosphoric acid esters
IPC: A01N57/14
Filed: 1972-12-15
Abstract: 1414980 Pesticidal application of thiophosphoric acid esters CIBA-GEIGY AG 15 Dec 1972 [16 Dec 1971 27 Oct 1972] 58065/72 Heading A5E [Also in Division C2] A pesticidal composition comprises as active ingredient a compound of formula I where R 1  is methyl or ethyl and either (a) R 2  is n-butyl or n-pentyl and R 3  is H, Cl or CH 3  or (b) R 2  is n-propyl and R 3  is H or CH 3 , together with a suitable carrier and optionally together with other insecticides and/or acaricides, for example organic phosphorus compounds, nitrophenols and derivatives thereof, formamidines, ureas, carbamates and chlorinated hydrocarbons. The compounds of formula I have insecticidal, acaricidal and nematocidal properties.
Patent GB-1385820-A (GB)
Title: Radial pneumatic tyres
IPC: B60C11/11
Filed: 1972-12-15
Abstract: 1385820 Pneumatic tyre treads MICHELIN & CIE (Compagnie Generale des Etabs Michelin) 15 Dec 1972 [17 Dec 1971] 58096/72 Heading B7C A radial-ply pneumatic tyre has a tread comprising substantially regularly repeating substantially transverse rows of isolated blocks, e.g. 30, 31, defined by zig-zag grooves, e.g. 20-22, which extend substantially transversely across the tread from one edge to the other and by circumferential grooves, e.g. 25, 26, which connect the transverse grooves, adjacent rows of blocks being transversely offset relative to one another such that, in each row, at least one block is transversely overlapped by two blocks in an adjacent row and L 1  # 2L 2  where L 1  and L 2  are the respective transverse amounts by which the block is overlapped by the two blocks in the adjacent row. L 1  may be >60% L, and L 2  may not exceed 20% L, where L is as shown. The width of the circumferential grooves may be less than that of the transverse grooves, and all the grooves may be of V-section with the walls of the circumferential grooves making an angle with the normal to the tread surface which is less than that made by the walls of the transverse grooves. That wall of a circumferential groove which bounds a part of a block overlapped by L 1  may make a larger angle with the normal to the tread surface than the opposite wall of the groove which bounds a part of a block overlapped by L 2 . The corners of all of the blocks may have angles larger than 90 degrees, and, throughout the tread the sides of the blocks may lie in respective ones of only three directions, namely the circumferential direction and two opposed directions inclined at the same angle α, e.g. 62À5 degrees, to the circumferential.
Patent GB-1304558-A (GB)
IPC: C07D261/08
Filed: 1970-12-08
Abstract: 1304558 Triazoles BAYER AG 8 Dec 1970 [24 Dec 1969] 58231/70 Heading C2C Compound of formula in which "triazolyl" stands for a compound of formula in which R and R<SP>1</SP> are each hydrogen, C 1-4 -alkyl or C 1-4 -alkenyl, each X is halogen, trifluoromethyl, C 1-4 -alkyl, C 1-4 -alkylthio, C 1-4 -alkoxy, aryl, nitro, cyano, amino or dialkylamino, m is 0, 1 or 2, A is an optionally substituted phenyl radical or a pyridyl, alkyl or cycloalkyl radical, and B is a five membered hetero-aromatic ring of formula in which E is oxygen, sulphur, or -N(alkyl)- or -N(aryl)-, Y is C 1-4 -alkyl, halogen or optionally substituted aryl, q is 0, 1 or 2, and n is 0, 1 or 2, and acid addition salts thereof, are prepared by reaction of a compound of formula with a triazole. The products are plant growth regulants. Bis - phenyl - (3 - methyl - isoxazol - 5 - yl)- chloromethane is prepared by reaction of 5- benzoyl-3-methyl-isoxazole with phenyl magnesium bromide to give bis-phenyl-(3-methylisoxazol-5-yl)-carbinol, and reaction of this with thionyl chloride.