baber/WOPTO huggingface dataset:
Patent GB-1343995-A (GB)
Title: Arrangement for holding mounting elements on an equipment rack-
IPC: H05K7/18
Filed: 1971-09-30
Abstract: 1343995 Latches INTERNATIONAL STANDARD ELECTRIC CORP 30 Sept 1971 [8 Oct 1970] 45536/71 Heading E2A [Also in Division H1] Circuit card edge connectors 19, cable terminal blocks 20 &c are supported in a rack (Fig. 1 not shown) by angles 22 having impressions 23 which engage teeth 13 of strips 12. The teeth stand up from rails 8 at an obtuse angle, the impressions 23 corresponding in shape, slope and distance. To remove the edge connectors or terminal boards &c metal strips are inserted between strips 12 and angles 22, the inserted metal strips lifting the teeth 13 out of impression 23. Tongues 15 in strip 12 (see Fig 3 not shown) help to secure the strips to rails 8.
Patent GB-1376230-A (GB)
Title: Distillation of readily polymerizable ethylenically unsaturated compounds
IPC: C07C7/20
Filed: 1972-10-03
Abstract: 1376230 Distilling hydrocarbons COSDEN OIL & CHEMICAL CO 3 Oct 1972 [13 Oct 1971] 45612/72 Heading C5E The polymerization of ethylenically unsaturated compounds, such as styrene, alphamethylstyrene, divinyl-benzene or vinyl-naphthalene, during distillation, is inhibited by distilling in the presence of N-nitroso-diphenylamine and in the absence of air, oxygen and sulphur. The inhibitor is preferably added to the distilland before it enters the still, and may be added as a solution in a hydrocarbon fraction that boils at a higher temperature than the distilland, e.g. a polyalkylbenzene. The distillation may be under vacuum.
Patent GB-1407423-A (GB)
Title: Optical apparatus for measurement for velocity and local  turbulence in a fluid flow
IPC: G01P5/26
Filed: 1972-10-03
Abstract: 1407423 Monitoring fluid-flow photoelectrically SOC GRENOBLOISE D ETUDES ET D APPLICATIONS HYDRAULIQUES 3 Oct 1972 [5 Oct 1971] 45632/72 Heading G1A [Also in Division H4] To measure the velocity of a flowing medium a monochromatic light beam is projected along a probe 1, focused at a point 3 in the liquid and backscattered light 4c is combined at a photo-cell 5 with reference beam 4a to provide an output whose Doppler frequency shift is indicative of the flow velocity. The mirror arrangement may be replaced by optical fibre(s). A further embodiment Figs. 2, 3 (not shown) directs light scattered in three directions on to three photo-cells so as to determine three velocity components and/or turbulence conditions.
Patent GB-985880-A (GB)
Title: Threshing apparatus, particularly for combine harvesters
IPC: A01F12/18
Filed: 1963-11-21
Abstract: 985,880. Threshing machines. G. CLAAS. Nov. 21, 1963 [Dec. 20, 1962], No. 46063/63. Heading A1F. In a threshing machine wherein a rotary member 13 and an associated grid 14 receive the threshed straw after it leaves the threshing drum 11, the grid is capable of reciprocation in a horizontal direction during operation of the machine. The machine is provided with an elevator feeding crop to the threshing drum 11 and concave 12 and is provided with an auger 18 to receive grain passing through the grid 14, this grain then being fed through a duct to the grain-pan 20. The grid comprises arcuate rods 16 secured to a crossshaft 15 which is spring-mounted at one end and terminates at the other end in a face-cam 22 in contact with a correspondingly-shaped driven face-cam 23. The bias of the spring 24 is adjustable by relative rotation of fixed and movable bushes 26, 27.
Patent GB-1285790-A (GB)
Title: Acylaminopenicillanic acids and process for preparing them
Inventor: SCHORR M
IPC: C07D499/00
Filed: 1970-09-28
Abstract: 1285790 Acylaminopenicillins FARBWERKE HOECHST AG 28 Sept 1970 [27 Sept 1969 (2)] 46107/70 Headings C2A andC2C Novel acylaminopenicillanic acids of Formula I wherein R<SP>1</SP> and R<SP>2</SP> are the same or different and are hydrogen or C 1  to C 5  alkyl or together form an optionally substituted alkylene group linking the nitrogen atoms, R<SP>3</SP> is hydrogen or C 1  to C 5  alkyl, A is an optionally substituted phenylene or thienylene group and B is oxygen or a chemical bond, and salts thereof, are prepared by reacting 6-aminopenicillanic acid or a salt thereof with a carboxylic acid of Formula II wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, A and B are as defined above or an N-acylating derivative or salt thereof. The groups R1, R<SP>2</SP> and R<SP>3</SP> preferably contain a total of not more than 6 carbon atoms. When R<SP>1</SP> and R<SP>2</SP> form an alkylene group, this may be substituted, e.g. by C 1  to C 5  alkyl groups which may be closed into a ring and this ring may include a hetero atom. A is preferably 1,4-phenylene or 2,5-thienylene and may be substituted, e.g. by alkyl, alkoxy and/or halogen. The reaction may be carried out in water, preferably together with a water-miscible solvent, at pH 6-9 and at ambient temperature or below; an acid-acceptor, e.g. NaHC0 3  or triethylamine, is preferably present in the medium. The product may be isolated by simply lyophilizing the reaction mixture to give the penicillin in the form of a crude mixture with salts (e.g. NaCl) formed as by-products, which may be used therapeutically without purification providing the salts are non-toxic. It is purified by re-crystallization from concentrated aqueous solution. The acid chlorides of 4-amidinophenylacetic acid, 4-amidmophenoxyacetic acid and 4-(2- imidazolinyl)-phenoxyacetic acid as their hydrochloride salts are prepared by reacting the acid with thionyl chloride. Pharmaceutical compositions having antibacterial activity against gram-positive and gramnegative bacteria comprise an acylaminopenicillanic acid of Formula I as defined above or a physiologically tolerable salt thereof together with a pharmaceutical carrier.
Patent GB-1125129-A (GB)
Title: An improved hydraulic apparatus
IPC: B60P1/00
Filed: 1965-11-01
Abstract: 1,125,129. Hydraulic control circuits. AUTOLAVA OY. Nov. 1, 1965 [Nov. 2, 1964; April 21, 1965], No.46209/65. Heading F1P. The delivery of a hydraulic pump 34, Fig. 3, is selectively directed to a load lifting rotary motor 36 and to a load tilting piston 39 and back to a supply tank 30 by vertical piston valves 9, 10 each axially displaceable within blocks 1, 2, Fig. 1 between a mid-position, intermediate upper and lower positions and upper and lower end positions whereby when both valves 9, 10 are in their mid-position, pump delivery is returned to tank 30 through ducts 38, 46 without passing through either motor 36, 39 and with one piston valve e.g. 10 in the mid-position and the other valve 9 in either intermediate position or in either end-position pump delivery is circulated through the associated motor 36 at reduced or full rate. The piston of each valve has a mid-recess 12, an upper axial bore 15 closed by a ball 17 and from which extend cross bores 14, 16 and a lower axial bore 15a closed by a ball 17a and from which extend cross-bores 14a, 16a. The valve casings 1, 2 each have axially spaced annular grooves 27 adjacent piston recess 12 and which are connected respectively with supply and return ducts 35, 68 upper and lower annular grooves 28, 29 connected by ducts 43, 45 and by ducts 41, 42 to opposite sides of motors 36, 39. Each casing also includes upper and lower end grooves 63 connected respectively to the return duct 46 via a non-return valve 22 and to the pump inlet duct 31 through a non- return valve 20. In its upper end position, Fig. 4, piston valve 9 isolates the upper from the lower casing groove 27 which latter becomes aligned with cross-bore 16a to allow pressure fluid to enter axial bore 15a and open valve 17a to pass through bore 14a into groove 29 and to feed passage 45. Fluid exhausted by the motor 36 through duct 43 traverses groove 28 cross-bores 14 axial bore 15 past valve 17 and passes through crossbores 16 and past valve 22 to the return duct 46. In its lower end position, Fig. 6, piston valve 9 again isolates grooves 27 from each other aligns cross-bore 16a with casing groove 29, crossbore 14a with groove 63, cross-bore 14 with pump delivery duct 35 and cross-bore 16 with casing groove 28 thereby allowing fluid exhausted by motor 36 driven reversely by a descending load 61 to be returned to the motor past valve 20 and through duct 43. The rate of descent of load 61 under gravity may be decreased by positioning piston 9 to its intermediate low position shown in Fig. 5 so as to nearly close lower casing groove 63 and slightly open the upper groove 27 whereby supply and return of fluid through ducts 43, 45 is restricted and part of the pump delivery is returned past valve 22 to reservoir 30. With piston valve 9 in its mid-position piston valve 10 is similarly adjustable to raise piston 39 against a tool 62 and allow it to return under said load.
Patent GB-1013530-A (GB)
Title: Method of producing the side wall of a large cylindrical or conical container
IPC: E04H7/06
Filed: 1964-11-13
Abstract: 1,013,530. Reactor pressure vessels. BETEILINGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT. Nov. 13, 1964 [Nov. 15, 1963], No. 46393/64. Heading G6C. A nuclear reactor pressure vessel is formed of shells 2 constructed of sheet steel rings 3 formed from sheet 4. Each sheet 4 is laid round the cylinder 1 with elastic deformation. The weld 5 joins the end edges of each strip together and to the metal surface beneath. Similarly, the strips are joined at the circumferential welds 6. All welded joints are staggered. The rings 3 are pre-heated electrically before securing in place. The sheets 4 may be cut obliquely at the ends to form the inclined joints 7.
Patent GB-1164470-A (GB)
Title: Improvements in and relating to Weight Supporting Mats
IPC: A47G27/02
Filed: 1966-10-18
Abstract: 1,164,470. Floor mats. SCHOLL MFG. CO. Ltd. 18 Oct., 1966 [18 Oct., 1965], No. 46589/66. Heading A4S. [Also in Division C4] A synthetic rubber or nylon floor mat is cast or moulded with a tread 2, and intersecting ribs 3, 4, which form a cushioning layer and adhere to the floor by vacuum-cup action, a non-slip layer 7 consisting of particles of an abrasive material, such as silicon carbide, being adhered to the upper surface of the tread. The mat has a peripheral bevelled edge, or a side-edge is formed with spaced extensions which interlock with complementary extensions on an adjacent mat.
Patent GB-1293546-A (GB)
Title: 2-alkyl glycerol derivatives and their use as herbicides
Inventor: ISAAC E R
IPC: C07C31/22
Filed: 1969-09-23
Abstract: 1293546 2-Alkyl glycerol derivatives and their use as herbicides SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 30 July 1970 [23 Sept 1969] 46745/69 Heading C2C The invention comprises 2-alkyl glycerol derivatives of formula wherein R represents an alkyl group; one group Y represents an optionally substituted hydrocarbyl or acyl group; and the other two groups Y either individually represent a hydrogen atom or an alkanoyl or heterocyclic group or jointly represent a carbonyl or optionally substituted divalent aliphatic hydrocarbyl group. Compounds of the above formula wherein all the groups Y are other than hydrogen atoms are prepared by reacting the corresponding monohydroxy derivative with a compound of formula HalY, wherein Y represents an optionally substituted hydrocarbyl or acyl group and Hal represents a halogen atom. The compounds of Formula I wherein two of the groups Y each represent a hydrogen atom are prepared by hydrolysing the corresponding compound wherein the two groups Y jointly represent preferably under acid conditions. The compounds of Formula I wherein one or two of the groups Y each represents an alkanoyl group, are obtained by reacting the corresponding diol with a suitable acylating agent, e.g. an acyl halide in the presence of an organic base, or an acid anhydride. The compounds of Formula I wherein the two groups Y jointly represent are prepared by reacting the corresponding diol with a compound of formula R 1 R 2 CO or an acetal or ketal derived from such a carbonyl compound in the presence of an acid. The compounds of Formula I wherein two groups Y jointly represent a carbonyl group are obtained by reacting the corresponding diol with a dialkyl carbonate in the presence of a base. Many compounds are specified. The invention also comprises a herbicidal composition comprising a carrier or a surface-active agent, or both a carrier and surface-active agent, and, as active ingredient(s) at least one 2-alkyl glycerol derivative of Formula I.
Patent GB-1082634-A (GB)
Title: Improvements in or relating to sealing rings in turbines
IPC: F01D11/22
Filed: 1964-11-18
Abstract: 1,082,634. Turbines. LICENTIA PATENTVERWALTUNGS - G. m. b.H. Nov. 18, 1964 [Nov.19, 1963], No. 46955/64. Heading F1T. For effecting adjustment of the clearance gap 17, Fig. 1, between an axial flow turbine rotor 10 and a sealing ring, the sealing ring comprises a number of segments 16, each of which is radially adjustable by varying the pressure of a hydraulic fluid in an annular chamber 21 surrounding the sealing ring and being formed by a part 12 of the turbine casing. Each segment 16 is formed with two radially extending bolts 22 and 23 which pass through bores 25 in the part 12, between which part and nuts 26 and 27 is clamped an inwardly bowed leaf spring 46. From an admission chamber 36, pressure fluid may be introduced into the chamber 21 via ports 32 and 30 to urge the segments 16, against the force of springs 46 to their radially innermost positions, shown in Fig. 1. The minimum value of the gap 17 may be varied by adjusting the nuts 26 and 27. The pressure in the chamber 21 may be relieved through ports 30, 33 and 37 via valve 35, the springs 46 and the pressure in the working medium flow channel then urging the segments 16 to their radially outermost positions, when they abut the part 12 as shown in Fig. 2. As an alternative to the ports 32, ports 43 and 44 and valve 50 may be provided. Annular sealing rings (not shown) may be provided between the segments 16 and the side walls 18, 19 of the annular groove in the part 12 which forms the chamber 21.
Patent GB-1193898-A (GB)
Title: Improvements in or relating to Worm Gearings
IPC: F16H55/22
Filed: 1968-10-03
Abstract: 1,193,898. Toothed gearing. GEWERKSCHAFT EISENHœTTE WESTFALIA. 3 Oct., 1968 [3 Oct., 1967], No. 47002/68. Heading F2Q. In a worm gearing comprising a globoidal worm 3 and globoidal worm-wheel 1, the wormwheel 1 is of steel hardened and ground on the surfaces of its teeth 2 which co-operate with the worm 3 which is produced from a softer material than the wheel 1 such that any manufacturing variations in tooth pitch &c. between the worm and wheel are accommodated by the softer teeth on the worm adjusting its form (i.e. wearing away during running in) to the form of the harder teeth 2 on the wheel 1. The worm 3 may be of unhardened steel, bronze, cast iron or aluminium or may be of steel, hardened to a lesser degree than the wheel 1. The grinding of the tooth flanks of the wheel 1 may be effected by a cylindrical hobbing worm of equal size and pitch, the grinding worm being coated with an abrasive composition and trued according to the pitch and form of the worm-wheel teeth, which teeth may be of involute form or of trapezoidal cross-section. A hardened and ground globoidal worm-wheel may alternatively be used with a soft cylindrical worm, the worm in operation assuming a form approximating to that of a globoidal worm.
Patent GB-1390145-A (GB)
Title: Motor vehicle having an engine drive mounting arrangement
IPC: B60K5/00
Filed: 1973-10-09
Abstract: 1390145 Mounting engines &c DR-ING Hcf PORSCHE AG 9 Oct 1973 [21 Oct 1972] 47120/73 Heading B7H The internal combustion engine 6 drives transmission 7 through a propeller shaft 10 and universal joints 9 and 11. The joint 9 is provided at the intersection of the axis B-B of rotation of the engine and the axis A-A of oscillation of the engine so as to reduce stress caused by oscillation forces. The longitudinal axis of the shaft 10 and the axis A-A coincide. The engine 6 has resilient bearings 16, 17 and 18 their resiliency increasing as the distance from point C increases. The engine 6 may be at front or centre of the vehicle.
Patent GB-1592807-A (GB)
Title: Production of an antibiotic
IPC: C07D477/00
Filed: 1977-11-14
Abstract: The novel compound of the formula <IMAGE> and its pharmaceutically acceptable salts are prepared by culturing an appropriate strain of Streptomyces flavogriseus in aqueous nutrient medium which contains assimilable sources of carbon, nitrogen and inorganic salts, under submerse, aerobic conditions and recovering the antibiotic formed. The novel antibiotic is active against various gram-positive and -negative bacteria and is a potent inhibitor of bacterial  beta -lactamases. It can be used in human and veterinary medicine and is also suitable as an additive to animal feed owing to preservation of feedstuffs and foodstuffs, and as a disinfectant.
Patent GB-1282035-A (GB)
Title: Measurements with digital voltmeters
Inventor: BLOOMFIELD JOHN
IPC: H03M1/00
Filed: 1969-09-26
Abstract: 1282035 Measuring resistance SOLARTRON ELECTRONIC GROUP Ltd 11 Sept 1970 [26 Sept 1969] 47483/69 Heading G1U [Also in Division G4] An unknown resistance (across 25) is measured using the modified dual-ramp digitial voltmeter shown by changing over switches 22 1 -22 5  so that during a first period a voltage (19) is applied to an integrator 13, 14 through a selectable standard resistance 23, and during a second period the voltage is applied to the integrator in the opposite sense through the unknown resistance (25) whilst simultaneously a counter 17 measures the time taken for the integrator output to be restored to a reference level. Other variants of the dualramp voltmeter principle may be used.
Patent GB-1407271-A (GB)
Title: Video amplifier for a colour television apparatus
IPC: H03G3/12
Filed: 1972-10-17
Abstract: 1407271 Television TEKTRONIX Inc 17 Oct 1972 [1 Nov 1971] 47765/72 Heading H4F In a colour television monitor, comprising separate amplifiers 14, 15, 16, Fig. 2, for each of the colour signals, contrast variation and brightness variation of the colour signals in each amplifier must continuously track so that the resultant composite view does not vary via the contrast or brightness. Each colour signal, Fig. 1, at inputs 18, 18<SP>1</SP>, 1811 has a black level pulse 11 and a white reference pulse 12 inserted into its line blanking interval T1, T5, the black level being constant and representing the cut off voltage of the display tube and the white reference pulse being varied with the desired contrast and causing, by a retroactive control, the amplification of the corresponding amplifier to be caried such that the amplitude of the white reference pulse and the output of the amplifier is constant thereby causing the desired contrast control. The white reference pulse also determines in part the DC. signal V1 added to the video signal by the brightness control circuit 34. This makes the brightness control substantially independent of the contrast control. The counter 26 fed with 1 megacycle oscillations produces pulses determining the times T1, T2, T3, T4, T5. During the period T2-T3 black pulse generator 28 produces black reference pulse amplitude V0 and feeds it to a current summing circuit 20 for addition to the three video signals. During period T3-T4 white pulse generator 30 produces the white reference pulse with amplitude V2 determined by the contrast control 32 and feeds it also to the current summing circuit 20 and also to the brightness control circuit 34. The brightness control circuit 34 adds the brightness voltage V1 to the video signal during the whole of the line interval T0-T5. The video signal with added reference pulses Fig. 1, is fed to its respective amplifier, e.g. 14 comprising a variable control circuit 40, a fixed amplification amplifier 42, a current limiter 44 and a second fixed amplification amplifier 46. The video signal is reduced to a suitable level by a divider 50 and is fed to two gated samplers 52, 54. In sampler 52 the level of the white reference pulse 12 is sampled and fed to a comparator 60 for comparison with a voltage designed to compensate for different electron gun sensitivities, the result of the comparison being used to control the variable control circuit 40 whereby the amplitude of-the white reference pulse at the amplifier output 48 is constant. The black level is sampled at sampler 54 and is fed to a comparator 64 for comparison with a voltage designed to compensate for cut-off voltages of different display tubes. The black level V0 is therefore constant at the output 48.
Patent GB-1427012-A (GB)
Title: Scaffold and like structures
IPC: E04G/
Filed: 1972-10-13
Abstract: 1427012 Scaffolding connector C EVANS & SONS Ltd 12 Oct 1973 [13 Oct 1972] 47796/73 Divided out of 1427011 Heading E1S The description is substantially identical to that in Specification 1427011, but the claims are concerned with the channel-shaped connector element in which the wedge is mounted, and with features of the wedge.
Patent GB-1067489-A (GB)
Title: Improvements in and relating to gravity conveyors
Inventor: WATERS HAROLD
IPC: B65G13/00
Filed: 1964-11-25
Abstract: 1,067,489. Roller conveyers. MANUFACTURERS EQUIPMENT CO. Ltd. Nov. 25, 1965 [Nov. 25, 1964], No. 47836/64. Heading B8A. A brake mechanism 14 in a gravity conveyer having free-running rollers or sets of wheels 12 comprises two rollers or sets of wheels 16, 18 which are interconnected for simultaneous rotation in such a way that their peripheral speeds are different, the rollers or sets of wheels 16, 18 being spaced apart by a distance less than the length X of each article 10 being conveyed. The article 10 may be a carton, box, crate or pallet. As shown, two brake mechanisms 14 are provided, the rollers or wheels 16, 18 of which have sprockets 20, 22 interconnected by chains 24. The rollers or wheels 16, 18 need not be adjacent to each other and the sprockets and chains may be replaced by pulleys and belts. The rollers or wheels 16, 18 may be of different sizes, the interconnection being of a 1 : 1 ratio. They may be mounted in a yoke pivotally connected to the main frame of the conveyer and tiltable either manually or mechanically so that only one of the two rollers or sets of wheels contacts the articles 10, the brake mechanism being then inoperative. The yoke may be spring-loaded to urge the rollers or wheels 16, 18 slightly above the rollers or wheels 12.
Patent GB-1133726-A (GB)
Title: New vulcanisable organopolysiloxane compositions and elastomers produced therefrom
Inventor: EDOUARD YVES CLAUDE JACQUES
IPC: C08L83/04
Filed: 1965-11-11
Abstract: 1,133,726. Silicone rubbers. RHONEPOULENC S.A. 11 Nov., 1965 [12 Nov. 1964], No. 47929/65. Heading C3T. A vulcanizable composition comprises (a) a linear organopolysiloxane containing at least 2 Si-bonded vinyl radicals per molecule, the remaining radicals being monovalent hydrocarbon (h.c.) radicals free from aliphatic unsaturation, with or without inert substituents, (b) a siloxane of the formula wherein n is an integer and R<SP>11</SP> and R<SP>111</SP> are monovalent h.c. radicals, free from aliphatic unsaturation, with or without inert substituents, and (c) a Pt catalyst. Siloxane (b) is usually used in amount of from 0À5 to 20% by wt. of (a). Conventional fillers and pigments may also be added. In a typical Example (1) a mixture of a methylvinylsiloxane, a siloxanetreated fume silica, a tetrahydrogenodimethylsiloxane and chloroplatinic acid (in isopropanol) was milled and the resulting paste was disposed in flat moulds and heat cured to form elastic sheets. Uses.-For making tubes, pipes, joints, damping devices and casings.