baber/WOPTO huggingface dataset:
Patent GB-1287458-A (GB)
Title: A capacitance measuring apparatus for extremely high loss dielectric materials
IPC: G01R27/26
Filed: 1969-11-05
Abstract: 1287458 Capacitance measurement KETT ELECTRIC LABORATORY 5 Nov 1969 [18 Nov 1968] 54323/69 Heading G1U A capacitance measuring apparatus for very high loss di-electric material comprises; a) a primary circuit including a tuning circuit Cv, Lp and a phase discriminating circuit V 1 , V 2 , Ig coupled to the tank circuit, Co Lo, of a high frequency oscillator, of angular frequency N, supplying the tuning circuit ; b) a secondary circuit including a series resonance circuit coupled to the coil Lp in the primary circuit and incorporating capacitors C 1 , C 2  and inductances L 1 , L 2  all in series. Two identical test samples Cx Rx are connected in parallel with C 2  and L 2  respectively. The circuit parameters are so chosen, in accordance with given equations, that apparent reactance variation due to the resistances Rx of the samples cancel. The sample capacitance is reflected across the transformer Lp to cause unbalance and initiate an output at Ig. This may be restored to zero by adjusting ganged variable capacitors C 2 <SP>1</SP>, C 22  in parallel with the two samples, the amount of adjustment then indicating the required capacitance. It is shown in the specification that for the proper cancelling of the resistance effects due to the samples In operation, the primary circuit coupled to the stable frequency oscillator is first tuned with switches S, S 1 , S 2  open, Cv being adjusted until current through Ig = 0. Switch S is closed and the secondary circuit tuned in the same way by adjusting Cs. The switch S 1 , S 2  are then closed with the samples Cx, Rx in position and C 2 <SP>1</SP>, C 22  again adjusted to bring current Ig to zero. As indicated above, the adjustment of C 2 <SP>1</SP>, C 22  indicates the required capacitance.
Patent GB-1206402-A (GB)
Title: Improvements in or relating to intermeshing gears in gear pumps
Inventor: WOOD ROBERT SPURGEON
IPC: F04C2/08
Filed: 1966-12-07
Abstract: 1,206,402. Gear-pumps. PLESSEY CO. Ltd. Nov.27, 1967 [Dec.7, 1966], No.54693/66. Heading F1F. In a gear-pump having intermeshing driver and driven gears, the tooth profiles of at least one of said gears is relieved in the portions coming into operation towards the end of the engagement as compared with the standard tooth profiles. As show, the driver gear 3 rotating in the direction of the arrow is relieved along the leading flank of each tooth from a point b at which a tooth makes initial engagement with a tooth of the driver given (see teeth 3a, 4a) to its tip. Owing to the elasticity of the gear teeth the transmission of torque from the driver gear 3 to the driven gear 4 will result in restoring contact between the two preceding teeth (3b, 4b). The consequence of this is that the root of the leading flank of a driver tooth and the tip of the trailing flank of a driven tooth receive additional wear whilst the tip of the leading flank of a driver tooth and the root of the trailing flank of a driven tooth receive less wear resulting in equalization of wear and longer tooth life. Preferably the relief of the tip portion of the teeth of the driving gear is effected on both flanks; this enables a reversible housing as described in Specification 1,052,238 to be used. This housing when reversed substitutes the engagement of the hitherto trailing flank of the driver gear and leading flank of the driven gear as the new leading and trailing flanks respectively, to double the life of the teeth. The root of the trailing flank of the driven gear may be relieved instead of the tip of the leading flank of the driver gear.
Patent GB-1170079-A (GB)
Title: Improved Polyurethane Foam and Method of Producing same
IPC: C08G18/64
Filed: 1966-12-07
Abstract: 1,170,079. Laminated panels. NATIONAL GYPSUM CO. 7 Dec., 1966 [28 March, 1966], No. 54854/66. Heading B5N. [Also in Division C3] An insulating panel consists of a rigid exterior sheet, such as asbestos-cement, an interior surface of gypsum wallboard and sandwiched between the two a polyurethane foam core which has been prepared by reacting an organic polyisocyanate with a polyol in the presence of a catalyst and a blowing agent, from 5 to 100% of the polyol consisting of an alkylene oxide adduct of a substantially aliphatic hydrocarboninsoluble pinewood resin. The form may be formed in place between the surface sheets or blocks of the foam may be formed and subsequently cut into slabs which are laminated between the sheets. Reference has been directed by the Comptroller to Specification 1,070,840.
Patent GB-1095870-A (GB)
Title: Fermentative process for the production of 5'-purine nucleotides
IPC: C12P19/32
Filed: 1965-03-09
Abstract: 51-Purine nucleotides are obtained by culturing Micrococcus sodonensis or Brevibacterium ammoniagenes in an aqueous nutrient medium containing, as a precursor for said nucleotide a purine base or purine nucleoside corresponding thereto, and an effective amount of amicro-organism growth-suppressing surface active agent. Specified surface active agents are polyoxyethylene alkylamines, cetyl pyridinium chloride, cetyl trimethyl ammonium bromide and alkyl-dimethyl benzyl-ammonium chloride, cationic surface active agents being preferred, and they are generally added comparatively late in the logarithmic growth period of the microorganism. Specified products are the 51-sodium salts of inosinic, guanylic, xanthylic and adenylic acids and in one of the examples hypoxanthine is also produced.
Patent GB-1153098-A (GB)
Title: Electrostatic Image Developing Equipment
IPC: G03G15/10
Filed: 1967-12-05
Abstract: 1,153,098. Developing electrostatic images. RANK XEROX Ltd. Dec. 5, 1967 [Dec. 7, 1966], No.55221/67. Heading G2H. An electro-photographic plate 1 having a latent electrostatic image 2 is placed in a developer container 7 to cover holes 71 in the bottom wall 72. A development electrode 3, provided with holes 71, is hinged at 73 to permit insertion and removal of the plate 1. Developing liquid 9 is poured through holes 31 and is drained, after development, through a tap (not shown) into a sump 8.
Patent GB-1184408-A (GB)
Title: C-Alkylated-N,N'-Disubstituted Diazacycloalkanes and Pharmacologically Acceptable Acid Addition Salts thereof
Inventor: ARNOLD HERBERT
IPC: C07D243/08
Filed: 1968-11-21
Abstract: 1,184,408. N,N-disubstituted diazacycloalkanes. ASTA-WERKE A.G. CHEMISCHE FABRIK. 21 Nov., 1968 [6 Dec., 1967], No. 55228/68. Heading C2C. Novel compounds II in which R 1 , R 2 , R 3  and R 4  are H or C 1-4  alkyl, at least one being alkyl; m is 0 or 1 and n is 2 or 3 and their pharmacologically acceptable salts are prepared by reacting (a) a 3,4,5-trimethoxybenzoic acid halogenoalkyl ester with the appropriate diazacycloalkane; (b) a 3,4,5-trimethoxy-benzoic acid halide, ester or anhydride with the appropriate N,N<SP>1</SP>-bis-(hy. droxyalkyl) - diazacycloalkane; or (c) a 3,4,5- trimethoxy-benzoic acid salt with the appropriate N,N<SP>1</SP> - bis - (haloalkyl) - diazacycloalkane, followed where necessary by salt formation or liberation of the free base from a salt. Pharmaceutical compositions comprise a compound II in admixture with a suitable excipient for enteral or parenteral administration and possess coronodilatory activity.
Patent GB-1487772-A (GB)
Title: Circuit arrangement for extending the pull-in range of a follow-up filter
IPC: H03H7/01
Filed: 1974-12-20
Abstract: 1487772 APC systems BLAUPUNKTWERKE GmbH 20 Dec 1974 [20 Dec 1973] 55232/74 Heading H3A In an arrangement for extending the pull-in range of a follow-up or automatic self-tuned filter including a filter 1 and a synchronizing arrangement 4-7, a broad-band by-pass signal path applies the input signal ZF to the arrangement 4-7 (e.g. to a circuit 8) so as to commence synchronizing when ZF lies outside the pull-in range and the arrangement 4-7 becoming unresponsive or less responsive to the by-pass signal once the input signal falls within the pull-in range. The input signal may be an I.F. carrier with sidebands and the filter 1 an N-path filter 2 with a control switch 3 in the form of a shift register. An input signal squared at 4 is phase compared at 5 with a signal on one of the switch paths to control a VCO 7 via a control element 6. The circuit 8 may include (Fig. 2, not shown) a variable gain amplifier in the by-pass path, a summator for adding the filter 1 output with the by-pass signal, a broad-band tuned circuit, a feed-back path including biased rectifier and a low-pass filter for reducing the gain of the variable gain amplifier with attainment of sync. Fig. 3 (not shown) relates to a circuit arrangement of Fig. 2.
Patent GB-1132614-A (GB)
Title: Cardenolides
Inventor: WARTBURG ALBERT VON
IPC: C07J75/00
Filed: 1965-12-31
Abstract: 1,132,614. Cardenolide derivatives. SANDOZ Ltd. 31 Dec., 1965 [1 Feb., 1965], No. 55385/65. Heading C2U. The invention comprises 12-dehydro-digoxin and its α-monoacetyl and tetracetyl derivatives, and their preparation by oxidation of α-acetyldigoxin with chromic acid in glacial acetic acid, followed if desired by, in any order, acetylation and/or hydrolysis. The compounds of the invention have cardiotonic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration.
Patent GB-1346129-A (GB)
Title: Clutch disc
IPC: F16D13/69
Filed: 1972-12-05
Abstract: 1346129 Friction clutches DAIKIN SEISAKUSHO KK 5 Dec 1972 [21 Jan 1972] 56103/72 Heading F2C An axially resilient clutch-driven plate comprises circumferentially spaced resilient arcuate carrier plates 17 which are bent to form flat portions 26, 31; 27, 29 which respectively support friction linings 15, 16 adjacent a driving flywheel and a presser plate respectively. The plates 17 are connected by bent neck portions 23 to a foot 21 which is riveted at 18 to a driven disc 14. The projecting part 35 of the bent neck portion provides an additional support for the friction facing 15 adjacent the flywheel. The friction facings 15, 16 are secured by rivets 19, 20 to the flat portions 26, 27 of the arcuate plates 17. In Fig. 1 (not shown) the driven plate is shown in a diaphragm spring clutch but may be used in a clutch having radial release levers.
Patent GB-1282878-A (GB)
Title: Improvements in sugar and in processes for its production
Inventor: VELTMAN PRESTON LEONARD
IPC: C13B30/02
Filed: 1968-11-26
Abstract: 1282878 Sugar preparations W R GRACE & CO 21 Nov 1969 [26 Nov 1968] 56144/68 Heading A2B '[Also in Division C6] In a process for producing solid sugar, either from virgin cane syrup which has been decolorised and deionised or from decolorised and deionised sucrose syrup containing a proportion of invert sugar to yield a solid edible product containing substantially the whole of the sugar fed to the process, is produced by feeding the syrup from a tank 9 via a pump 10 to a well formed in the upper surface of a centrifugal spray disc 2, which either has bore holes leading from the well to radial tubes 11 having an inside diameter of 2 to 4 mm or has an upstanding peripheral flange bored with a series of rectangular holes 6x12 mm, the disc being rotated to produce a fine spray or mist in a chamber 1, and by feeding fine recycled sucrose particles e.g. by a screw conveyer 12 and a distributing baffle to a point just above the level of the disc, air currents caused by the rotation of the disc serving to scatter the particles more or less uniformly through the mist of syrup droplets thrown from the disc, heated air being fed into the chamber 1 via heater 8 and line 7 to cause the spray droplets to solidify on the fine sucrose particles and form either a microcrystalline sucrose, where virgin syrup is used, or a product comprising microcrystalline sucrose embedded in an amorphous matrix of sucrose and invert sugar, where sucrose syrup containing invert sugar is used. The coarser grains of the product are collected in a container 14 while the finer grains are collected via a side truck 15 in a cyclone separator 16. The portion of the product to be recycled is ground down to a suitably fine powder and the remainder is screened as required. The temperature of the air fed into chamber 1 is preferably between 100 and 150 degrees C, the temperature falling to 55-75 degrees C on leaving the lower end of the chamber.
Patent GB-1215830-A (GB)
Title: Underwater wellhead apparatus
Inventor: JOHNSON GLENN DONNELL
IPC: E21B41/00
Filed: 1968-11-27
Abstract: 1,215,830. Mills &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 27 Nov., 1968 [29 Nov., 1967], No. 56310/68. Heading E1F. [Also in Division B3] A manipulator for carrying out operations at an underwater wellhead and controlled from a base positioned above the water's surface has an arm provided with a gripper carrying a wrench socket. The arm is mounted normal to the vertical axis of the manipulator to be moved along and rotates about the axis. The mamipulator runs on a track in a wellhead assembly as described in Specification 982070. The gripper comprises movable and fixed jaws 54, 56 mounted on a tube 53 rotated within the arm body 28 by a motor 40 having a spline coupling 42 with a spindle 30 suppartimg the tube, and the socket 77 is formed in the fixed jaw 56. The spindle has a piston 34 permitting the gripper to be extended from the arm body by fluid pressure. The jaw 54 is connected to a piston 65, the arrangement being that the jaw 54 is closed by fluid pressure and opened by a spring 68. In a modification the movable jaw is the lower one and is opened by a spring mounted in the fixed jaw.
Patent GB-1119946-A (GB)
Title: Improvements in or relating to agricultural pick-up vehicles
IPC: B60P1/36
Filed: 1965-07-29
Abstract: 1,119,946. Agricultural bale pick-up vehicle Endless conveyers. TEXAS INDUSTRIES Inc. 29 July, 1965 [5 Aug., 1964; 6 May, 1965], No. 56515/67. Divided out of 1,119,943. Headings B8A and B8E. The subject matter is the same as in the parent Specification and the claims are directed to the arrangement of the two pick-up conveyers.
Patent GB-1420439-A (GB)
Title: Conveyor belt cleaning apparatus
IPC: B65G45/12
Filed: 1972-12-07
Abstract: 1420439 Cleaning conveyer belts C W WARD 23 Nov 1973 [7 Dec 1972] 56588/72 Heading B8A An assembly of conveyer belt scrapers 20, 20 is mounted between carrier members 12 by means of bars 25, the arrangement being such that the distance between the members 12 can be adjusted to suit a particular conveyer installation, and the scraper assembly can be angularly adjusted relative to the members 12. As shown, the bars 25 are of hexagonal crosssection and are slidably mounted in collars 23 which are welded to the scraper assembly. The adjusted position is secured by bolts 29. The angular adjustment is provided by taper plug and socket connections 24, 26, between each bar 25 and the associated member 12. The mounting of the members 12 on the conveyer framework may be as described in Specification 1,137,100.
Patent GB-566023-A (GB)
Abstract: 566,023. Snow ploughs. AKTIEBOLAGET AXEL JOHANSSONS MEKANISKA VERKSTAD. June 22, 1943, No. 10073. Convention date, June 15, 1942. [Class 107] Relates to snow-removing means comprising a truck 1 with a snow plough 6 at its forward end, side shovels pushing the snow laterally, a rotary snow plough 7 at the rear end together with a snowhurling wheel 13 driven by a separate engine 15, and two steering wheels 5, 21, geared together and used respectively for forward and rearward steering, and consists in pivotally connecting the rotary snow plough 7 to the truck by means of links 9 so that it can be swung upwards when idle, the engine 15 driving the snow-hurling wheel 13 through a driving shaft provided with universal joints aligned with the pivots of the links 9. The rotary snow plough 7 is provided with runners 8 and comprises two wheels which feed the snow to the snow-hurling wheel 13, the latter delivering through a discharge tube 14. A gas generator is mounted at the side of the truck.
Patent GB-1404089-A (GB)
Title: Process and apparatus for sterilizing articles
IPC: A23L3/34
Filed: 1973-12-10
Abstract: 1404089 Sterilizing with gas plasma BOEING CO 10 Dec 1973 [11 Dec 1972] 57196/73 Heading ASG The surfaces of articles exposed to the conditions of outer space are sterilized by passing over them a substantially continuous flow of gas plasma for a time sufficient to achieve sterilization thereof. The figure shows an apparatus wherein a gas, e.g. A, N, O, He or Xe, stored under pressure in tank 3, is converted to a plasma which passes over the articles to be sterilized, which are contained in the chamber 1 maintained at low pressure, e.g. by diffusion and mechanical pumps (not shown).
Patent GB-1244758-A (GB)
Title: Zip-fastener
IPC: A44B19/26
Filed: 1968-12-04
Abstract: 1,244,758. Sliding clasp fasteners. ANBA SPORTMODE VORSTEHER K.G. and S. VORSTEHER. 4 Dec., 1968 [14 Dec., 1967], No. 57533/68. Heading E2S. A sliding clasp fastener has top and bottom cover plates (9), 10, Figure 1 (not shown), of a clasp 8 extending outwardly beyond guide channels 14, 15 of the clasp 8, and terminating in apexes 18. Tapes 2 support individual closure elements 1, and are in turn sewn to the edges (3) to be connected, overlapping portions of the edges (3) forcing cover lips (6), (7), Figure 1 (not shown). Alternatively, (not shown), the elements 1 may be formed on continuous coils.
Patent GB-1460889-A (GB)
Title: Shuttleless looms
IPC: D03D47/23
Filed: 1972-12-14
Abstract: 1460889 Shuttless looms, weft inserters JAMES MACKIE & SONS Ltd 13 Dec 1973 [14 Dec 1972] 57821/72 Heading D1E A receiving inserter T has a weft hook 6 that is normally closed by a spring load, pivoted warp deflector 22 and is opened at the centre of the shed by an abutment 24 which, on retraction of the receiver, allows the deflector 22 to close the hook to grip the weft against a member 18. A withdrawal weft deflector 30 is provided.
Patent GB-1291785-A (GB)
Title: A method of and apparatus for carrying out automatic quantitative thermometric analyses
Inventor: PEUSCHEL GERD
IPC: G01N25/48
Filed: 1970-12-04
Abstract: 1291785 Thermometric analysis KALICHEMIE AG 4 Dec 1970 [9 Dec 1969] 57845/70 Headings B1C and B1X Automatic, quantitative, thermometric analysis of a substance is carried out by conveying a solution of the substance, and excess reagent solution, separately in automatically metered amounts, through a thermostatically controlled bath 4, Fig. 1, to a reaction cell 5, also within the bath and equipped with a magnetic stirrer, whereupon any heat change in the cell is measured by detector 7 and compared with known calibration curves. The reagent may be metered continuously and the sample is either continuously or intermittently metered as by a flexible tube pump. K, Mg and PO 4  estimations are described. The magnetic stirrer, Fig. 2, comprises a polytetrafluorethylene disc having a magnetic insert 11 and four upstanding blades 12 arranged in quadrature. Each blade 12 has a cut out 13 for the accommodation of the temperature recorder. The reaction cell body may also be made of, or lined with, PTFE.
Patent GB-1201963-A (GB)
Title: Process for the production of coatings
IPC: C08F220/06
Filed: 1967-12-22
Abstract: 1,201,963. Coatings comprising 2-alkenyl-#<SP>2</SP> oxazoline copolymers. CHEMISCHE WERKE HULS A.G. 22 Dec., 1967 [24 Dec., 1966], No. 58285/67. Heading B2E. [Also in Division C3] Substrates are coated with a copolymer of a 2-alkenyl-#<SP>2</SP>-oxazoline and an α,#-unsaturated carboxylic acid and the coatings cross-linked by baking at 100 to 200C, suitably for 15 to 60 minutes. In the Examples, metal or glass sheets are coated with compositions comprising the above copolymers, which may contain further comonomers such as acrylic or methacrylic acid esters or styrene, dissolved in xylene/butanol, isopropanol, acetone, isopropanol/water, water, xylene, and xylene/isopropanol, and optionally containing TiO 2  also, and the coatings baked.
Patent GB-1282422-A (GB)
Title: New polyester manufacturing process
Inventor: AITKEN ROXBURGH RICHARD
IPC: C08G63/85
Filed: 1968-12-12
Abstract: 1282422 Polyesters IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Feb 1970 [12 Dec 1968] 59088/68 Heading C3R Polyesters of low acid number are made by heating an aliphatic dicarboxylic acid, alone or in admixture with other carboxylic acids, with an aliphatic diol, in proportions to give an OH: COOH ratio of between 1À0:1 and 1À1:1, in the presence of a stannous salt of an aliphatic monocarboxylic acid in an amount to provide less than 55 p.p.m. of tin in the total reaction mixture. The reaction mixture may also include aromatic dicarboxylic acids, aliphatic diamines or aminoalcohols, monohydric alcohols, monobasic carboxylic acids and polyhydric alcohols. In examples, stannous octoate is used as a catalyst in the polycondensation of (1) adipic acid, propylene glycol and coconut oil fatty acid; (2) ethylene glycol, propylene glycol and adipic acid and (3) ethylene glycol, diethylene glycol and adipic acid.
Patent GB-1324429-A (GB)
Title: Method of forming electric insulating coating on the surface of silicon steel sheet
IPC: C23C22/00
Filed: 1970-12-16
Abstract: 1324429 Coating silicon steel sheet KAWASAKI SEITETSU KK 16 Dec 1970 [18 Dec 1969] 59809/70 Heading B2E [Also in Division C7] Silicon steel sheet containing 2-4% by wt. Si is coated with a mixture containing 5-40% by wt serpentine and the remainder magnesia in aqueous suspension, drying to form a coating of serpentine 0.5-6.0 g/m<SP>2</SP> in thickness and magnesia 2-12 g/m<SP>2</SP> in thickness, and box annealing the steel sheet in a reducing atmosphere containing hydrogen, and optionally nitrogen. The serpentine may contain antigorite or chrysotile and also talc, magnesite, dolomite and chlorite. The mixture may also contain 0-40% w/w hydrogenous oxide resulting in a coating containing 0-6.0 g/m<SP>2</SP> hydrogenous oxide. The coated steel sheet may then be further coated with a solution formed by dissolving 6kg of chromic anhydride and 15kg aluminium nitrate in 1,000 1 of 30% magnesium phosphate and baked for 1 minute at 450‹C to give a coating of 2.5 g/m<SP>2</SP>.
Patent GB-1376750-A (GB)
Title: Catalyst systems and their use in production of butadiene polymers
IPC: C08F136/06
Filed: 1971-12-23
Abstract: 1376750 Dialkyl aluminium fluorides SUMITOMO CHEMICAL CO Ltd 23 Dec 1971 [28 Dec 1970 (2) 29 Dec 1970 (2)] 59949/71 Heading C2J [Also in Division C3] Dialkylaluminium fluorides are prepared by reaction of a trialkyl aluminium compound with a perfluoroalkyl aromatic compound at - 20‹ to 150‹ C., optionally in the presence of a solvent. In specific preparations, triethyl aluminium is reacted with benzotrifluoride or the 2-chloro-, 2- bromo-, 2,4-dichloro- or 3-trifluoromethylderivatives thereof, at 80‹ C. and the products separated by fractional distillation into a Et 3 Al/Et 2 AlF fraction, an Et 2 AlF fraction and an Et 2 AlF/EtAlF 2  solid residue. The compounds are useful in butadiene polymerization catalysts (see Division C3).
Patent GB-611664-A (GB)
Abstract: 611,664. Apparatus for testing pumps. HARTRIDGE, L. May 3, 1946, No. 13515. [Class 102 (i)] A vessel for use in testing pumps comprises a wholly or partially transparent graduated vessel 2 fitted with removable covers 3, 4, held together by tie bolts 6. The upper cover has a delivery nozzle and connector 9 to which is applied the pumps delivery pipe 16, a valve 10 being interposed; the cover also carries pressure gauge 12 and an air inlet valve 11. The lower cover is fitted with a discharge outlet 13 and control valve 14. Specifications 464,331, [Group XXIV], 514,808 and 574,353 are referred to.