baber/WOPTO huggingface dataset:
Patent GB-345246-A (GB)
Title: Improvements in or relating to mountings for rolls
IPC: F16C35/073
Filed: 1929-12-18
Abstract: 345,246. Supporting and mounting bearings. SKF - NORMA GES., 60, Mohrenstrasse, Berlin. Dec. 18, 1929, No. 38774. Convention date, March 13. [Class 12 (i).] A bearing mounting for rolls particularly the guiding rolls of paper machines, which are such that one end of the roll may be lifted for replacing the felt, comprises a housing, capable of transverse pivotal movement, to which is fixed the outer bearing race and also a non-rotatable shaft extending down the centre of the roll. The forces involved in raising the roll are thereby taken by the central shaft and not by the bearing. A housing 10 is spherically mounted in a fixed support 11 and is pinned to a non-rotatable central shaft 12. The roll-neck 15 carries the inner race of a self-aligning roller bearing fixed thereon by a taper sleeve and nut. Closure is effected by a flange 21 and gland-washer 22. To allow for movement due to bending of the rolls and variations in temperature the spherical housing at the opposite end is carried in a cylindrical support, or where both supports are spherical one housing may be loosely mounted on the shaft.
Patent GB-1276841-A (GB)
Title: Improvements relating to circuit arrangements for stabilising the operation of thermionic devices
Inventor: TAYLOR ERIC WILFRED
IPC: H01J29/98
Filed: 1968-08-14
Abstract: 1276841 Automatic current control EMI Ltd 17 July 1969 [14 Aug 1968] 38782/68 Heading G3R [Also in Division H4] In an arrangement for stabilizing the beam current of a thermionic device, specifically a television pick-up tube, by employing the voltage variations developed across an impedance connected to an electrode in a current flow path of the device to control the current flowing in the device isolating means are connected between the impedance and the electrode to isolate the latter from the voltage variations. Thus, as shown in Fig. 2, voltage variations developed across resistor 6 connected in series with the cathode 2 of a television pick-up tube 1 produce, via a differential amplifier 8 supplied with a reference input at terminals 9, 10 an output control voltage which controls the tube beam current via modulator grid 3 and to isolate the cathode 2 from such voltage variations the emitter-collector path of a transistor 4 is connected between the cathode 6 and resistor 6. Blanking of the beam during fly-back may be effected by supplying positively-going pulses to the base of transistor 4 via terminal 14 and resistor 15 and capacitor 16 are provided to prevent the generation of spurious pulses (which might overload the differential amplifier 8) during transients of the blanking pulses. The beam current of the pick-up tube may be changed by changing the value of resistor 6 or by changing the reference voltage supplied to terminals 9, 10. Fig. 3 shows a practical arrangement in which the differential amplifier is constituted by field effect transistors 29, 30 protected by respective high-voltage transistors 32, 33, the impedance is provided with an adjustable portion 27 and in which diode 25 maintains the voltage across the transistor 24 within defined limits and a resistor 23 protects the transistor in the event of "flush-over" in the pick-up tube 20. Another practical arrangement in which the field effect transistors are replaced by high-gain ordinary transistor and a single protecting high-voltage transistor only is described with reference to Fig.4 (not shown).
Patent GB-948676-A (GB)
Title: Improvements in hydrogenation of aldehydes using ruthenium catalyst
IPC: C07C29/141
Filed: 1961-10-30
Abstract: 948,676. Hydrogenation of aldehydes. ENGELHARD INDUSTRIES Inc. Oct. 30, 1961 [Oct. 31, 1960], No. 38818/61. Heading C2C. Aldehydes are treated with hydrogen in the presence of a catalyst containing ruthenium, the hydrogenation being discontinued when the activity of the catalyst has been reduced to a relatively low level and the catalyst then being treated with an oxygen-containing gas to reactivate it for re-use in the catalytic hydrogenation. Suitable aldehydes are, for example, those having the formula RCHO in which R is a C 1 -C 18  alkyl radical or an aromatic radical and unsaturated aldehydes such as undecylenic aldehyde. When R is an aromatic radical it may be a substituted phenyl radical, for example, a methoxyphenyl group. The products are, in general, alcohols but if an unsubstituted aldehyde is the starting material the hydrogenation may be stopped when the double bond has been saturated. In an example heptaldehyde is reduced to heptyl alcohol.
Patent GB-1512930-A (GB)
Title: Substituted 4-hydroxybenzylidene malononitriles
IPC: A01N37/38
Filed: 1976-09-20
Abstract: 1512930 Compositions containing hydroxybenzylidenemalononitriles ICI AUSTRALIA Ltd 20 Sept 1976 [29 Sept 19751 38877/76 Heading A5B [Also in Division C2] Anthelmintic compositions in conventional forms for oral or parenteral administration comprise a compound of formula I  wherein R' is halogen, R<SP>2</SP> and R<SP>3</SP> are each H, halogen or C 1-6  alkyl and R<SP>4</SP> is alkyl in which the carbon atom attached to the ring is substituted by three alkyl groups and a carrier or diluent and optionally piperazine, 1 - diethylcarbamoyl - 4 - methylpiperazine, tetraamisole, 2 phenylbenzimidazole, thiabendazole, phenothiazines, mebendazole, pyrantel salts and organic or inorganic arsenical compounds.
Patent GB-1272720-A (GB)
Title: Photoconductive composition for electrophotography
IPC: C07D209/12
Filed: 1970-08-12
Abstract: 1,272,720. Photoconductive composition. FUJI PHOTO FILM CO. Ltd. 12 Aug., 1970 [13 Aug., 1969], No. 38932/70. Addition to 1,268,889. Heading H1K. [Also in Division C2] A photoconductive composition comprises a binder and a compound containing a radical of formula wherein R 1  is H, C 1-4  alkyl, halogen, NO 2 , OR or CO 2 R; R is C 1-4  alkyl; R 2  is H, OH, OR, CN or phenyl; n is 1 to 4 and X is a single bond or NH. In the embodiments various photoconductors possessing specific examples of the above radical are mixed with polystyrene and optionally chloranil in a benzene solution and coated on an aluminium sheet. Many other resin binders, sensitizers and plasticizers are specified.
Patent GB-1393552-A (GB)
Title: Self cleaning ground contacting element
IPC: A43B13/22
Filed: 1972-08-22
Abstract: 1393552 Boots &c B F GOODRICH CO 22 Aug 1972 [23 Aug 1971] 39127/72 Heading A3B [Also in Division B7] A ground contacting element, e.g. the sole of a boot, shoe or overshoe, for use in environments of mud or the like includes a resilient body 13 having a plurality of transversely extending flexible fins 14, said fins 14 extending generally downwardly from the body 13 at an acute angle thereto, each of said fins 14 having a front and a rear face portion, said front face having a curvilinear portion co-operative with the rear face 18 to define a lobe 16 at the end portion, and a thin portion 17 at the juncture of each fin 14 with body 13, and each of the fins being co-operative with an adjacent fin to define a groove 15 therebetween; The fins 14 are thin and even in spacing and are of such a length that they trap air between adjacent fins upon deflection in such a way that they spring back into their original shape and will clean themselves if such fins have come into contact with mud. Thus the fin structure inhibits the build up of mud on the ground contacting element. The ground contacting element may form the sole and heel portions of a boot or overshoe, the ribs in the sole portion being inclined forwardly and the ribs on the heel portion being inclined rearwardly. The ground contacting element may be formed integral with the boot or overshoe or may be secured to the bottom surface of the boot or overshoe.
Patent GB-1014190-A (GB)
Title: Electromagnetic slow wave structure
IPC: H01J23/27
Filed: 1959-11-18
Abstract: 1,014,190. Soldering. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Nov. 18, 1959 [Nov. 18, 1958], No. 39151/59. Heading B3R. [Also in Division H1]  Beryllium oxide is soldered to copper as follows: a mixture of 20-30% manganese, 5-15% borosilicate glass, and 40-60% molybdenum oxide powders is densified by fritting in a non-oxidizing atmosphere, the agglomerate is ground, and a suspension is prepared in amyl acetate with the addition of nitro-cellulose. The surface of the beryllium oxide is metallized by coating with this material and heating for 30 minutes at 1350‹ C. in an atmosphere of dry hydrogen. The metallized beryllium oxide is then soldered to the copper using a eutecticsilver/copper solder.
Patent GB-934784-A (GB)
Title: Electrical signalling gear
IPC: H04Q9/14
Filed: 1959-11-18
Abstract: 934,784. Control of motors; protective arrangements. STAMICARBON N.V. Nov. 18, 1959 [Nov. 22, 1958], No. 39188/59. Classes 38 (3) and 38 (5). [Also in Group XXXVIII] Equipment for signalling a condition on any one of a number of units comprises a visual signal associated with each unit, which operates on the advent of a predetermined condition, and an audible signal common to several units operated by the transient conditions due to switching on or off any of the visual signals. The units, for example motors 1 and temperature or pressure indicators 18 have associated with them switches which when closed connect indicator lamps 2 in circuit. The indicators are shunted by capacitors 16 and the transient pulse produced by closing any of the switches is fed to a peaking transformer 4 and the output of which is applied to a thyratron 5 having a relay 6 in its anode circuit. Operation of the relay 6 couples the circuit to a second relay 8 which upon operating energizes the audible alarm 13 and releases the first relay 6 preparing it for a further input pulse. Operation of a push-button 14 de-energizes relay 8 and the audible alarm 13 leaving the equipment reset to give a further audible alarm upon the operation of another switch in another visual alarm circuit. The primary of the transformer 4 may be shunted by an impedance 17 having a low impedance at the frequency of the supply compared with the impedance of the primary of the transformer, but a higher impedance in respect of the transient switching signal. The impedance may be a filter network for use with an A.C. supply, or a resistor in the case of a D.C. supply. Other forms of amplifier for example a cold cathoderay tube may be used in place of the thyratron 5. A changeover switch 3 may be provided for each motor to cause the circuit to operate when a motor is switched off instead of on.
Patent GB-1462053-A (GB)
Title: Detectors for flaws in metal
IPC: G01N27/90
Filed: 1973-08-21
Abstract: 1462053 Electromagnetic flow detectors HOCKING ASSOCIATES (ELECTRONICS) Ltd 30 May 1974 [21 Aug 1973] 39488/73 Heading G1N An eddy current type metal flaw detector provides an output which is linearly proportional to a dimension of the flaw. An elgonated portable probe Fig. 1 (not shown) carries an inductor L1 which together with capacitor C1 forms a tuned circuit forming an oscillator with two stage amplifier TR1, TR2. Changes in amplitude of the oscillator output at the collector of TR2 due to flaws in a metal being tested are fed to an integration circuit TR3, TR4 which provides a summation of variation of individual oscillations over a short period of time; the voltage at the collector of TR4 increasing when the probe encounters a flaw. The output of the integration circuit is applied to the non-inverting input 3 of integrated circuit IC1 which together with transistors TR6, TR6 forms a threshold circuit. When the voltage at 3 increases due to the presence of a crack the voltage at 6 increases in linear relationship therewith and transistor TR9 is caused to conduct. The resultant voltage across resistor R27 determines the current flow through meter 5 which is indicative of the depth of the crack. The output at transistor TR4 across R14 may be connected via an amplifier incorporating a threshold circuit to a voltage to frequency convertor which energizes ear phones 7 (shown in bottom of Fig.).
Patent GB-849918-A (GB)
Title: A killed converter steel which is ageing resistant and not embrittled when welded
IPC: C22C38/06
Filed: 1956-12-28
Abstract: A steel prepared by the killed converter process that is alloyed with 0.12-1.0% Al, present in solid solution, is ageing resistant and is not embrittled when welded.  The Al content may be at least fifteen times the N content of the steel.  C may be present in the range 0.02-1.0% and P up to 0.15%.  The Al may be added in molten condition to molten steel being poured into a ladle, addition of Al being started as soon as one or two tons of steel are in the ladle and being terminated when about two thirds of the steel has been poured.
Patent GB-1336438-A (GB)
Title: Printing apparatus for an automatic xerographic apparatus
IPC: G03B17/34
Filed: 1970-11-05
Abstract: 1336438 Automatic development XEROX CORP 5 Nov 1970 [7 Nov 1969] 39613/71 Divided out of 1336436 Heading G2H Automatic apparatus 500 comprises means for removing an exposed xerographic plate 10 from a hinged cassette 40 and means 528 for developing it (subject-matter which is disclosed in Specification 1336436).
Patent GB-881627-A (GB)
Title: N-(ú=-chlorobenzenesulphonyl)-n-(ú=-dimethylaminophenyl) urea, and its preparation
IPC: A61K31/64
Filed: 1959-11-25
Abstract: The invention comprises: N-(p-chlorobenzenesulphonyl)-N1-(p-dimethylaminophenyl) -urea and its alkali metal salts; pharmaceutical compositions containing them (see Group VI); and the preparation of N-(p-chlorobenzenesulphonyl)-N1-(p-dimethylaminophenyl)-urea by reacting p-chlorobenzenesulphonamide, or an alkali metal salt thereof, with p-dimethylaminophenyl isocyanate, or with an N,N-diaryl-N1-(p-dimethylaminophenyl)-urea, or with an aryl-N-(p-dimethylaminophenyl)-carbamate or -thiocarbamate. Other standard methods of preparation are also outlined. p-Chlorobenzenesulphonamide may be prepared by ammonolysis of the corresponding sulphochloride, and may be converted into alkali or alkaline-earth metal salts by the action of basic alkali and alkaline-earth metal compounds.ALSO:Pharmaceutical compositions for the oral treatment of diabetes comprise N-(p-chlorobenzenesulphonyl) - N1 - (p - dimethylaminophenyl)-urea or an alkali metal salt thereof, in admixture with a pharmaceutically acceptable carrier or diluent. They may take the form of capsules, tablets, lozenges, troches, aqueous suspensions or elixirs.
Patent GB-896562-A (GB)
Title: Improvements in or relating to methods of producing electrical capacitors
IPC: C23C14/02
Filed: 1959-11-26
Abstract: In a process for producing electrical capacitors by coating a carrier, which may be of paper or synthetic resin, with aluminium or zinc by deposition from the vapour phase in a vacuum, the carrier is first dried to a moisture content of 1-3%.
Patent GB-1009901-A (GB)
Title: Improvements in hay-making machines
IPC: A01D78/10
Filed: 1963-10-11
Abstract: 1,009,901. Haymaking machines. FELLA-WERKE G.m.b.H. Oct. 11, 1963 [Oct. 26, 1962; Dec. 11, 1962], No. 40296/63. Heading AlF. A haymaking machine comprises a frame beam 1 supporting a plurality of pronged heads 3 rotating about vertical axes and is characterised in that the heads are driven from the power-take-off of a tractor through a gear box 7 and through bevel gears 9, 10 the later of which comprise two gears 11, 12 slidable axially on the driving shaft 8 to engage a third gear 13 whereby the direction of rotation of the rake-head is reversible. Alternate ones only or all the rake-heads may be reversible and the gears may be ganged together for simultaneous movement. In an embodiment all the rake-heads on one side of the centre line of the machine in the direction of travel are arranged to rotate in the same direction. In a further embodiment step-up gearing is arranged between the power-take-off shaft of the tractor and the gear box 7.
Patent GB-1111243-A (GB)
Title: Improvements in instrument cleaning machines
Inventor: EASTLAND RAYMOND LEE
IPC: A61M5/00
Filed: 1965-09-23
Abstract: 1,111,243. Endless conveyers. EASTLAND ENGINEERING Ltd. 23 Sept., 1966 [23 Sept., 1965], No. 40610/65. Heading B8A. [Also in Division A4] An instrument washing machine (see Division A4) includes an endless chain conveyer 7 having at least one arm 23 attached to the conveyer to provide a pivot point, the conveyer passing between upper guide members 11, 13 and a lower guide member 12, the arrangement and dimensions of the guide members and arm being such that the pivot point moves along a vertical line through the centre of the lower guide member. The conveyer consists of a pair of chains which pass around pairs of sprockets 8, 9, 10 and around seven pairs of sprockets 11-17, the sprockets 8 being driven by an electric motor 22 through a reduction gear 21 and a chain drive 20. The arms 23 are attached in pairs at intervals along the chain and provide pivot points for carriers 24 which are loaded with the instruments to be cleaned.
Patent GB-1357928-A (GB)
Title: Method and apparatus for spray drying
IPC: A23C11/08
Filed: 1971-08-31
Abstract: 1357928 Coffee whitener KRAFTCO CORP 31 Aug 1971 [8 Sept 1970] 40633/71 Heading A2B [Also in Division Bl] In a method for drying liquid coffee whitener, which is also suitable for drying skim milk, whole milk and whey, to simultaneously provide a first product having a bulk density of about 0.60-0.70 gms/cc and a second product having a bulk density of about 0.40-0.55 gms/cc and rapid sinkability and solubility, liquid coffee whitener dispersion is sprayed from nozzle 24 into chamber 25 to form particles, in which chamber hot air from heater 29 is circulated such as to dry said particles and provide an outlet air temperature 31 of about 190F-210F, a fraction of the dried particles, entrained in the circulating air, is removed entrained in the air via 31 to sifter 55 to provide the first product, and another fraction of dried particles is removed by gravity to cooled vibratory conveyor 61 and hence to sifter 63 to provide the second product, the particles being cooled in conveyor 61 by at least about 20F. At least part of the solid product from 31 may be recycled via 70, and drying chamber 25 may be at from about atmospheric pressure to about 2" water vacuum.  In the only Example, using the above method, a coffee whitener product is obtained from cyclone 49 with a bulk density of 0.65 gms/cc and from sifter 63 with a bulk density of 0.49 gms/cc starting with the following formulation sprayed through spray nozzle 24: coconut fat (92) 2,020 lbs. emulsifier 240 lbs, corn syrup solids (24 D.E.) 3,200 lbs, sodium caseinate 220 lbs. Salts 160 lbs, and water 2,500 lbs.
Patent GB-1145645-A (GB)
Title: Novel pregnane derivatives
IPC: C07J75/00
Filed: 1966-08-12
Abstract: 1,145,645. Pregnane derivatives. F. HOFFMANNLA ROCHE & CO. A.G. 12 Aug., 1966 [8 Oct., 1965; 28 Jan., 1966], No. 40674/68. Divided out of 1,145,641. Heading C2U. The novel pregnane derivatives 2α-bromo- 5α,6# - dihydroxy - pregnan - 3 - one 20 - carboxylic acid methyl ester, 2α-bromo-3#,5α,6#- trihydroxy - pregnane 20 - carboxylic acid methyl ester and the triacetate of the latter derivative are prepared by reacting 5α,6#-dihydroxy - pregnan - 3 - one 20 - carboxylic acid methyl ester with bromine to yield 2α-bromo- 5α,6# - dihydroxy - pregnan - 3 - one 20 - carboxylic acid methyl ester, this can be reduced using lithium tritertbutoxy aluminium hydride and the resulting 2α - bromo - 3#,5α,6# - trihydroxy - pregnane 20 - carboxylic acid methyl ester can be converted into its 3,5,6- triacetate by treatment with acetic anhydride and paratoluene sulphonic acid. The novel pregnane derivatives 2α-bromo- 5α - pregnane - 3,6 - dione 20 - carboxylic acid methyl ester, 2α - bromo - 5α - pregnane - 3# - ol- 6 - one 20 - carboxylic acid methyl ester and 2α- bromo - 3# acetoxy - 5α - pregnan - 6 - one 20- carboxylic acid methyl ester are prepared by reacting 5α-pregnane-3,6-dione 20 - carboxylic aeid methyl ester with bromine to yield 2α- bromo - 5α - pregnane - 3,6 - dione 20 - carboxylic acid methyl ester, this can be reduced with lithium tritertbutoxy aluminium hydride and the resulting 2a-bromo-5α-pregnan-3#-ol- 6-one 20-carboxylic acid methyl ester can be converted into 2α-bromo-3#-acetoxy-5α-pregnan-6-one by treatment with acetic anhydride in the presence of pyridine. The novel pregnane derivative 2α-bromo-20- hydroxy - methyl - 5α - pregnan - 3# - ol - 6 - one 3,22-diacetate is prepared by reacting 20- hydroxymethyl - 6α - pregnane 3,6 - dione with bromine, the reaction product can be reduced with lithium tritertbutoxy aluminium hydride and the reduction product can be treated with acetic anhydride in the presence of pyridine.
Patent GB-915631-A (GB)
Title: Derivatives of 5-hydroxy-8-methoxy-2-methyl-4,5-furo-6,7-chromone and methods for obtaining these derivatives
IPC: C07D493/04
Filed: 1959-12-01
Abstract: The invention comprises khellin derivatives having the formulae:- <FORM:0915631/IV (b)/1> <FORM:0915631/IV (b)/2> together with their preparation by treating desmethylkhellin with b -dimethylaminoethyl chloride, reacting the product with methyl iodide, bromide or chloride and converting the resulting methohalide of 5-(b -dimethylaminoethoxy) - 8 - methoxy - 2-methyl-41,51-furo-6,7-chromone to the corresponding quaternary hydroxide or the theophyllinate salt by reaction with moist silver oxide in ethanol or with the silver salt of theophylline respectively.  The compounds are coronary vasodilators.
Patent GB-1379322-A (GB)
Title: Apparatus for distributing powdered materials
IPC: B65G53/48
Filed: 1972-09-01
Abstract: 1379322 Pneumatic conveyers BRITISH CELLOPHANE Ltd 24 Aug 1973 [1 Sept 1972] 40762/72 Heading B8A Apparatus for distributing powdered material at a uniform rate comprises a fluid ejector having a suction inlet, a screw conveyer to deliver powder to the suction inlet, a screen between the screw conveyer and the suction inlet, and at least one air inlet to introduce air into the suction inlet adjacent the screen. The screen has apertures of a size such that the powder may be extruded through the screen without blocking the screw conveyer, while preventing passage of clumps of powder. The figure shows a screw conveyer 1 conveying powder from hopper 4 to suction inlet 7. A screen 9 is fixed between the outlet 6 of the conveyer 1 and the inlet 7. Air inlets 10, 11 supply air to entrain the powder into fluid ejector 8. The longitudinal axis of the suction inlet is preferably offset from the longitudinal axis of the screw conveyer, as shown.
Patent GB-1489678-A (GB)
Title: Sampled differential analyser
IPC: H04N5/30
Filed: 1975-10-06
Abstract: 1489678 Object comparison WESTING- HOUSE ELECTRIC CORP 6 Oct 1975 [17 Oct 1974] 40774/75 Heading H4F Digital difference signals corresponding to differences between the video signal of an object to be evaluated and the corresponding stored 11 video signal of a model object are generated 12-15 and displayed 22 in superimposition with the video signal of the object to be evaluated (via delay 24) to thereby form a composite image that permits the detection of significant differences between the two objects. The digital difference signals, after digital to analogue conversion 16 are fed to the red gun of a colour monitor while the video signal from camera 10 is fed to the green gun. The digital difference signal is generated by periodically sampling the absolute value difference signals from comparator 12 in a threshold and sampling circuit 13, the resulting bits being supplied to a processor 15 including a shift register which produces digital output words whenever the bits signify a significant variation between the compared signals, i.e. a group of three or more logic one bits signifying sampled difference signals greater than a threshold.