baber/WOPTO huggingface dataset:
Patent GB-376236-A (GB)
Title: Process for bringing about photochemical reactions by subjecting a dissolved substance to radiation in a vacuum or in an indifferent atmosphere
IPC: A61K31/592
Filed: 1930-12-31
Abstract: <PICT:0376236/III/1> In effecting photochemical reactions by the irradiation of dissolved substances in a vacuum or inert atmosphere, the solvent is distilled from the reaction product within the apparatus and used to dissolve further quantities of raw material. In the illustrated apparatus the substance to be treated (e.g. ergosterol) is placed on a sieve 2 in a vessel 3 through which the solvent flows.  The solution passes through a valve 5, which may be magnetically controlled, into a reservoir 6 and thence through the irradiation device 7 and magnetically controlled valve 16 to the reservoir 19 and still 21.  The vapour is passed through the condenser 23 and the condensate returned to the vessel 3.
Patent GB-831697-A (GB)
Title: Improvements relating to vacuum pumps
IPC: H01J41/14
Filed: 1956-12-28
Abstract: 831,697. Discharge apparatus. GENERAL ELECTRIC CO. Dec. 28, 1956 [Dec. 30, 1955], No. 39487/56. Class 39(1). [Also in Group XXVIII] A high vacuum pump comprises means for producing ions from gas molecules in a chamber and means for bombarding a surface of a membrane permeable to the gas and forming a wall of said chamber with said ions, together with a rough vacuum pump for removing reformed gas molecules from the opposite surface of said membrane after diffusion therethrough. The pump shown in Fig. 1 has an ion vacuum chamber 2 in which a cold type electrode 4 is mounted, rough vacuum chambers 3 containing magnets 12 and separated from chamber 2 by membranes 11, a vessel 19 to be evacuated, and a conduit system 17 leading to a rough vacuum pump 14. Valves 16, 18 and 20 are opened until the pump 14 has evacuated gas to the limit of its capacity. Valve 16 is then closed and source of potential 9 is actuated to cause electrode 4 to attract electrons under influence of the magnet poles 12. The gas ions produced proceed towards, and are absorbed on, membranes 11 where they again become gas molecules and pass through to chambers 3 from where they are evacuated by the pump 14. Another embodiment differs from the above in that there is only one rough vacuum chamber and the two magnet poles are replaced by an electromagnetic coil which surrounds the ion vacuum chamber. The embodiment shown in Fig. 2 has a rough vacuum pump 25 and the vessel 28 to be evacuated is connected to the ion vacuum chamber 22 in which is mounted a filament 30 of the hot type energised by a power source 31. A grid 32 energised by a power source 33 is placed between the filament and the membrane 27 which separates chamber 22 from the rough vacuum chamber 21. The membrane is connected in circuit through power source 34.
Patent GB-1100012-A (GB)
Title: Improvements in or relating to rolling mills
Inventor: O'BRIEN JEREMIAH WAGNER
IPC: B21B31/08
Filed: 1963-10-08
Abstract: 1,100,012. Rolling. UNITED ENGINEERING & FOUNDRY CO. 8 Oct., 1964 [8 Oct. 1963], No. 39568/63. Heading B3M. A vertical rolling mill includes an outer open-top housing having uprights 11 and 12, and an inner housing including horizontal beams 16 and 17 in the windows of which are mounted the chocks of two rolls 21 and 22. The rolls are able to be removed from the outer housing either by lifting them vertically, or by horizontally shifting them, as a unit with the inner housing, along rails 103. The driving spindles 48 and 49 of the rolls are constructed so that they remain in their vertically aligned positions when the rolls are removed vertically, thus obviating any realignment when replacement rolls are fitted. The roll 22 is adjusted laterally by screws 25 driven from a motor 27, while verticle adjustment of the rolls and the inner housing is effected by motor driven screws 90 and 91. A beam 96 and links 97 cause the driving spindles 48 and 49 to be adjusted vertically as a unit with the rolls, a spliced driving connection at the lower ends of the spindles accommodating the vertical movement. The spindles are driven from a motor through gearing 62-68. The rolls are balanced by pivoted, counterbalanced, hooks 33 operated by hydraulic cylinder 32 and co-operating with hooks 35 attached to beams 34 connecting the roll chocks. When the rolls are lifted from their driving spindles, internal springs 76 and 87, Fig. 3, in the spindles, extend to cause a number of co-operating sleeves to retain the spindles and couplings in their upright positions. Before removing the rolls vertically or horizontally the screws 90 and 91 are operated to lower the inner housing and rolls until abutments 101 of the housing rest on rails 103. Further movement of the screws causes the spindles 48 and 49 to be uncoupled from the roll ends to allow roll removal. A piston and cylinder assembly 106 is able to slide the inner housing and rolls along the rails 103 and simultaneously position a replacement set (in dotted lines) within the outer housing. The rolls may alternatively be removed vertically using hooks 24, or may be lifted, together with the inner housings, by means of lugs 20a.
Patent GB-1400348-A (GB)
Title: Self-checking analogue-to-digital converter
IPC: H03M1/10
Filed: 1973-08-21
Abstract: 1400348 A/D converters B E B MAX and B G MARTHINSSON 21 Aug 1973 [30 Aug 1972] 39652/73 Heading H3H An A/D converter is provided with automatic indication of erroneous results of conversion and comprises a measuring signal input which is preceded by a switching circuit to which is also applied a reference input whereby either of these inputs can be supplied singly or in combination to the converter, and a control circuit arranged to control the switching and converter circuits so that different outputs of the switching circuit are converted into successive sub-measurements, and has a checking circuit to combine all sub-measurements together and with the reference signal to produce a signal indicative of the error in the A/D conversion. As shown, a single-ramp integrating type A/D converter AD is fed with an input V i  from differential amplifier F where the gains A, B of each side are such that A+B= 1. The inputs Eo, Uo, O, being reference, measurement and ground potentials respectively, are applied to amplifier F as signals Ua,Ub via a transistor switching circuit OMK controlled by signals So from central control CU, and 4 measurements are made consecutively, namely: (1) with Ua, Ub, Vi all equal to Uo which is the measurement of Uo; (2) a first check measurement with Ua=Uo, Ub=O, Vi=AUo; (3) a second check measurement with Ua=Eo,Ub=Uo, Vi=AEo+BUo; (4) and a last check measurement with Ua=O, Ub=Eo, Vi=BEo. These are made successively and are stored in registers BM1- BM4 by commands g 1 -g 4 , the output of register BM1 being the converter output and being taken via a decoder AVK to an indicator IND of the measured value. The four measured values are combined at DS1 so that (2)-(4) are added and the result taken from Eo+Uo, Uo being as measured by (I). The result Us is shown to be an error signal indicative of the error in Uo and if this is greater than a threshold, an error indication is provided, e.g. by causing the indicator to flash, or by audible alarm. Signals g 5  and g 6  at appropriate parts of the measurement cycle cause zero- and gain-errors in the converter to be checked and remedied.
Patent GB-951828-A (GB)
Title: Process for the extraction and recovery of acetylene
Inventor: BRACONIER FREDERIC FRANCOIS AL
IPC: C07C7/11
Filed: 1961-11-07
Abstract: Acetylene is recovered from pyrolysis gases by first removing carbon, tars, aromatic hydrocarbons and higher acetylenes and then dissolving the acetylene in water containing an anti-freeze at below - 20 DEG C. and under pressure. The pre-purification is preferably effected as described in Specifications 758,864 and 870,737. Suitable anti-freeze materials are dimethylformamide, methanol, ethylene glycol and glycerol, but preferred is ammonia, the solution preferably containing about 30% by weight of ammonia. Extraction may be effected at -50 DEG  to -100 DEG  C. at above 10 atmospheres. Acetylene is recovered by degassing, preferably in two stages to remove less soluble gases first, by decompression and warming, e.g. to 1.2 atmospheres and -10 DEG  C.
Patent GB-1484491-A (GB)
Title: Method of contraception
IPC: A61K38/00
Filed: 1974-09-12
Abstract: 1484491 Contraceptive compositions BEHRINGWERKE AG 12 Sept 1974 [12 Sept 1973] 39879/74 Heading A5B A contraceptive composition suitable for parenteral administration comprises pregnancyspecific # 1 -glycoprotein, as defined, or antibodies to such a glycoprotein, in admixture with a pharmaceutically suitable carrier.
Patent GB-1021746-A (GB)
Title: Improvements relating to manual control means for elevating or other conveyors
Inventor: ROOKE SYDNEY WILLIAM
IPC: B65G47/48
Filed: 1963-10-10
Abstract: 1,021,746. Endless conveyers. SOVEX Ltd. Oct. 6, 1964 [Oct. 10, 1963], No. 40075/63. Heading B8A. A push-button destination device on an endless conveyer is provided with locking means to prevent interference with the setting once the device has passed out of reach of the operator. A destination is set on a tray (not shown) by depressing a knob 7 on a rod 8 against a spring 13, the rod 8 being retained by a counter balanced detent plate 12 engaging a collar 10, Fig. 2 (not shown). If an incorrect knob 7 is depressed then depressing another knob 7 releases the knob 7 already set through a further collar 11 and the new setting is retained by the detent plate 12. When a destination is set as shown by the dotted line in Fig. 1, a plate 23 on a locking device 22 swings an arm 25 into the dotted position shown so that once the device has passed out of reach of the operator the arm 25 is arranged to engage a fixed stop 26 which rocks the arm 25 through a large angle causing a locking arm 27 to pass behind and over an arm 28 pivoted on a shaft 29. The free end of the locking arm 27 acts as an abutment for the detent plate 12 precluding accidental or intentional interference with the destination setting. On arrival at a destination, tilting of the tray for delivery of its contents causes a spindle 33 to raise an arm 21, Fig. 3 (not shown), which, through a pin 30, lifts the arm 28 so releasing the locking arm 27 and thus the detent plate 12 for movement by an abutment 34 to disengage the collar 10 to release the rod 8. A combination of the knobs 7 may be simul. taneously depressed to set a destination or other information.
Patent GB-1280497-A (GB)
Title: Preparation of stable, water-soluble enzyme conjugates
IPC: C11D3/386
Filed: 1969-08-12
Abstract: 1280497 Enzyme conjugates ORGANON LABORATORIES Ltd 12 Aug 1969 [31 Aug 1968] 40282/69 Headings C3H and C3P In a stable, water-soluble enzyme conjugate, the enzyme is bound with covalent bonds to compounds containing several reactive groups in the presence of a "protein hydrolysate" (see below). The compound containing several reactive groups may be polyacrylic acid activated with, for example, N-ethyl-5-phenylisoxazolium-3<SP>1</SP>-sulphonate (Woodward's reagent K), the azide of carboxymethylcellulose, ethylene maleic acid anhydride, polyglutamic acid activated with Woodward's reagent K, formaldehyde, thioformaldehyde, dextrans substituted with isothiocyanic groups, dimethyl adipic acid derivatives, glutaric aldehyde, carbodiimides and phenol-2,4-disulphonyl chloride, cyanogenbromide, polysaccharides (e.g. dextran) activated by cyanogenbromide, crotonaldehyde, acrolein and chloroformic esters, or a mixture of these agents. The enzyme may be catalase, protease, amylase, amyloglucosidase, ribonuclease, lipase, or a transferase, lyase, esterase, isomerase or ligase, or a mixture thereof. The "protein hydrolysate" may be one or more amino acids or peptides; it may be hydrolysed casein, serum albumin, lactoglobulin, egg albumin, fibroin, myosin, keratin, collagen, gelatine, soya protein or crude protein mixtures.
Patent GB-901691-A (GB)
Title: N-substituted-dibenzo[b.f]azepines and their preparation
Filed: 1958-12-16
Abstract: The invention comprises dibenzo[b.f.]-azepine and -dihydroazepine derivatives of the general formula <FORM:0901691/IV (b)/1> (wherein X represents -CH = CH- or -CH2-CH2-, p  each Y represents a hydrogen or halogen atom, R1 and R2 represent C1-4 alkyl radicals, R3 represents a hydrogen atom or a C1-4 alkyl radical, and alkylene represents a C2-4 alkylene radical, or <FORM:0901691/IV (b)/2> represents a piperazine ring substituted at the second nitrogen atom by a C1-4 alkyl radical) and their mono- and di-acid-addition salts and quaternary ammonium compounds, and the preparation thereof by reacting a 5-(21,31-epoxypropyl)-azepine or -dihydroazepine of the general formula <FORM:0901691/IV (b)/3> with a diamine of the formula <FORM:0901691/IV (b)/4> and, if desired, converting the product into a salt by treatment with an inorganic or organic acid or into a quaternary ammonium compound by reaction with a reactive ester of an aliphatic or araliphatic alcohol.  The products have spasmolytic, anti-allergic and hypnotic activity.  5-(21,31-Epoxypropyl)-azepines and -dihydroazepines of the general formula (II) above are prepared by reacting the alkali metal compounds of the corresponding 5-unsubstituted compounds with epichlorhydrin.  Reference has been directed by the Comptroller to Specification 820,476.
Patent GB-1131650-A (GB)
Title: Improvements in the printing of yarns
Inventor: CRUMP JOHN PATRICK
IPC: D06B11/00
Filed: 1966-09-10
Abstract: 1,131,650. Printing yarns. J. P. CRUMP. 7 Sept., 1967 [10 Sept., 1966], No. 40514/66. Heading B6C. In a yarn printing machine, the yarn emerges in sinuous form from a reciprocating coiling mechanism B on to an endless conveyer A by which it is passed beneath two rows of inking nozzles d<SP>3</SP> and d<SP>4</SP> arranged transversely over the conveyer, each row depositing a different colour on the coiled yarn and the nozzles of the rows being staggered to print the yarn in alternate stripes. A second conveyer A<SP>1</SP> passes the printed yarns to a fixing device either before or after drawing the yarn for winding into package form. In a modified machine three reciprocating coilers are arranged transversely of the conveyer, two colour printing being effected by two parallel staggered rows of printing rollers. In yet a third embodiment the coiled yarn is passed between the lower and upper flights of two superposed endless conveyers, cooperating pairs of printing and impression rollers being located such that -the former is below the said upper flight whilst the latter is above the lower flight. The printing rollers rotate in ink fountains.
Patent GB-1361998-A (GB)
Title: Endless reinforcement and method for producing the same
IPC: B60C9/20
Filed: 1971-09-01
Abstract: 1361998 Making endless reinforcements by winding DEERING MILLIKEN RESEARCH CORP 1 Sept 1971 [3 Sept 1970 18 Nov 1970 14 Dec 1970] 40831/71 Heading B8G [Also in Divisions B5 and B7] An endless reinforcement, e.g. for use in the production of tyres, drive belts and conveyer belts, comprises one or more unitary strips, each strip comprising a multiplicity of continuous cords coated with or embedded in rubber and being arranged in a number of superimposed turns each consisting of a series of straight strip lengths extending alternately to and fro across the greater part of the width of the reinforcement obliquely to the edges thereof and interconnected at the edges by curved or folded strip parts to form a generally zig-zag pattern, the whole of each strip length in the or each superimposed turn overlying a gap between the two similarly inclined straight strip lengths most nearly adjacent to it in the turn immediately beneath the superimposed turn. The cords may be of glass, viscose rayon, nylon, polyester or cotton fibres or brass plated steel wires and may be associated in the unitary strip with rubber in one or more planes, the cords being equally or unequally spaced. In Fig. 6 strip 30 drawn over guide 44 is laid in the desired zig-zag pattern on surface 32 of rotatable drum 31 by guide means 33 mounted on rod 34, drum 31 and guide means 33 being driven by motor 35. Motor 35 is connected through belt and pulley arrangement 36 to rotatable shaft 37 connected to barrel cam 38 and to drive shaft 39 for drum 31 through gear train 40. Cam follower 42 connected to guide means 33 engages groove 38a in the surface of cam 38 which is of such configuration that during rotation of drum 31, guide 33 reciprocates across drum surface 32 transversely to the direction of rotation. Positioning of the strip on drum surface 32 during subsequent rotation of drum 31 is controlled by gear mechanism 43 so that the strip being laid is in a predetermined position with respect to other strip lengths.
Patent GB-1276605-A (GB)
Title: Firing equipment for simulating gun-fire
Inventor: HOFFMANN JAKOB OSWALD
IPC: F41A33/04
Filed: 1970-08-25
Abstract: 1276605 Simulating gun-fire J O HOFFMANN [trading as HOFFMANN-WERKE J OSWALD HOFFMANN] 25 Aug 1970 [23 Sept 1969] 40832/70 Addition to 1190701 Heading F3C Firing equipment for simulating gun-fire includes a plurality of firing cups for accommodating pyrotechnic devices, each firing cup being associated with a separate detonating device which can be set off by means of control apparatus which comprises a stepping switch actuable by a release contact of a gun to route successive detonating impulses to different firing cups. In the construction shown the stepping switch has an energizing coil 108, moving contact 114 and output contacts 120 ... 130. The contact 114 may be moved through impulses provided by a hand-operated impulse emitting means without consequent detonation of the pyrotechnic devices through a normally closed switch c of a switch set 106. Key operation opens the switch c and allows the moving contact to connect the detonating devices to a source of current. When the circuit is in the firing condition warning lamps 116, 134 are activated. During firing control lamps 120<SP>1</SP> ... 130<SP>1</SP> are activated in sequence.
Patent GB-1400933-A (GB)
Title: Process for hydrophobising silicates
IPC: C09C1/28
Filed: 1973-08-31
Abstract: 1400933 Hydropholizing silicates DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 31 Aug 1973 [31 Aug 1972] 41007/73 Heading C1A Hydropholized silicates of the metals of Groups II-IV are made by introducing an organo halogen silane with intensive stirring into an aqueous silicate precipitation suspension at a temperature of from 15-70 C. and after filtration, washing and drying, heating the product at a temperature in the range from 200-500 C. It is preferred to use freshly precipitated aqueous suspensions of, e.g. Ca, Al or Ba silicates and add a mono, di and/or trihalogen organo silane, a mixture of 70% by wt. dimethylchlorosilane and 30% by wt. methyl trichlorosilane being particularly suitable as the hydropholising agent. Tempering is carried out by heating the dried coated silicate for example at 400 C. for one hour to give a product of improved hydropolic properties.
Patent GB-1035983-A (GB)
Title: Process for producing a catalytic composite
IPC: B01D53/94
Filed: 1963-04-19
Abstract: In a process of preparing a catalytic composite a particle-form inorganic oxide carrier is commingled with a liquid impregnating medium containing at least one metallic component from Group VA, VIA or VIII of the Periodic Table, Cu, Ag or Au in the presence of about 0.1 to about 1.5% by weight based on the weight of the carrier of an organic acid or derivative of formula <FORM:1035983/B1-B2/1> in which R is H, OH or an alkyl group, R1 is H an alkyl group or COOH and n = 0 to 6, and thereafter drying the mixture. Specified carriers are SiO2, B2O3, ThO2, TiO2, SrO, ZrO2, HrO2 and mixtures thereof. Specified metals are Pt, Pd, Ir, Ru, Rh, Fe, Co, Ni, V, Cr, W, Mo and binary and termary mixtures.
Patent GB-1005868-A (GB)
Title: Improvements in electrical analogue computing circuit arrangements
Inventor: PERCIVAL WILLIAM SPENCER
IPC: G06G7/24
Filed: 1960-12-01
Abstract: 1,005,868. Analogue calculating circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 1, 1961 [Dec. 1, 1960], No. 41259/60. Heading G4G. [Also in Division H4] An arrangement for performing division includes a source of signals representing a first variable, a second source of signals representing a second variable and two function generators to which the signals from the first and second sources are applied and from which are derived two signals, each substantially representing the logarithm of the respective variable. These logarithmic signals are fed to an arrangement for producing a linear combination thereof and the combined signal is fed to a generator having a transfer co-efficient substantially representing a hyperbolic function. An output signal derived from the hyperbolic function generator represents the quotient of particular functions of the two variables, the particular functions being determined by the choice of hyperbolic function and the linear combination. In one embodiment of the invention, for determining the ratio U/V, two time varying voltage signals U and V are applied to the inputs 1 and 2 of the circuit and by means of the resistors 3, 5 and 8 and an amplifier 4 they are added together and inverted to produce a signal representing - (U+V). This signal is applied to the input of the logarithmic function generator 11. It is also applied through a resistor 9 (value R) to the input of an amplifier 7 to whose other input is applied the signal U through a resistor 6 (value R/2) so that the amplifier 7 gives an output representing V - U. This output is fed to the logarithmic function generator 12. The two logarithmic function generators 11, 12, which consist of conventional diode circuits, have their outputs applied via the resistors 13 and 14, each of value R, to the amplifier 15, whose feed-back resistor 17 has a value R/2. A signal corresponding to the function ¢ [log (U + V) - log (V - U)] is produced at the amplifier output. This signal is applied to a tanh function generator 16 to deliver a function tanh ¢ [log (U + V) - log (V - U)] which is equal to U/V. It is said that the " tanh " function is particularly easy to generate by means of diode function generators, provided the function U is restricted to the range V>U> - V. Other embodiments of the invention include an arrangement for producing an approximate result wherein the " tanh " generator and the preceding summing amplifiers are replaced by a pair of differencing valves with a large resistance in the common cathode lead. Further, if the tanh function generator is replaced by a hyperbolic secant function generator, the circuit delivers a signal proportional to the ratio between the geometric and arithmetic means of the signals applied to the logarithmic function generators, because 2xy/x + y = sech ¢ log y/x.