baber/WOPTO huggingface dataset:
Patent GB-1062459-A (GB)
Title: Improvements in or relating to the production of vinyl chloride polymers
Inventor: ABERCROMBIE MALCOLM JAMES
IPC: C08F251/02
Filed: 1964-09-10
Abstract: 70 to 100 parts of vinyl chloride and 30 to 0 parts of vinyl acetate are suspension polymerized in an aqueous medium containing hydroxyethyl cellulose of viscosity 10 to 10,000 c.p.s. and an oil-soluble initiator.  The said viscosities are measured on a 1% w/w aqueous solution of the hydroxyethyl cellulose at 23 DEG  C. Specified initiators are caprylyl, lauroyl and benzoyl peroxides and mixtures thereof.  In the example vinyl chloride and vinyl acetate are copolymerized in a medium containing hydroxyethyl cellulose of viscosity 300 c.p.s., sodium bicarbonate and caprylyl peroxide.
Patent GB-319340-A (GB)
Title: Process for the production of higher hydrocarbons
IPC: B01J19/02
Filed: 1928-12-15
Abstract: 319,340. Fischer, F. Sept. 22, 1928, [Convention date]. Hydrocarbons. - Methane is converted to higher hydrocarbons such as ethylene and benzene by passing it or gases containing it through a furnace working on the regenerative system, the furnace being hot blasted by combustion gases and cooled again by passing the methane through. The heat of the combustion gases passing out is stored up separately and used for heating combustion air or gases. The time of heating the methane in the hottest zone'should not be more than one second and preferably less. Catalytically acting lining or filling bodies such as silicic acid in the form of silica stones or bricks or of silica gel may be used but the presence of iron, nickel or cobalt should be avoided. The remainder of the methane may be passed through the apparatus again, or may be used to replace lighting gas or hydrogen or for heating the apparatus.
Patent GB-773669-A (GB)
Title: Improvements in bias cutting machines
IPC: B26D1/20
Filed: 1955-12-28
Abstract: 773,669. Bias cutting machines. LEVER BIAS MACHINE CORPORATION. Dec. 28, 1955 [Dec. 16, 1955], No. 37134/55. Class 31 (1). [Also in Group XVI] In a bias cutting machine comprising an expandable mandrel and a cutting knife, means are provided for simultaneously adjusting the knife position and the mandrel size. In the machine shown, the mandrel comprises a fixed bar 30 on which are slidable sleeves 34, 35, 41 to which are pivotally connected rods 38, 39, 40, the rod 40 being counterweighted by a weight 42. The bar 30 is supported at one end by spaced sleeves 31, 32 disposed on a fixed bracket plate 33 provided with slotted arms 31<SP>1</SP> in which ride pins 38<SP>1</SP>, 39<SP>1</SP> projecting upwardly from the rods 38, 39. A rotatable knife 43 is movable vertically by means of a screwthreaded shaft 47 which passes through a threaded bore in a block 48 and is rotatable by a handle 49. The block 48 has two bored sleeves 51 through which pass rods 52 one of which has teeth 53 engaged by a gear 54 which is rotatable by a handle 57 to move the knife substantially parallel to wind-up rollers 10, 11. The block 48 has attached thereto a U-shaped plate 60 provided with a pair of adjustable studs or rollers 62 which lie closely adjacent to and on opposite sides of the mandrel rod 39 so that when the knife is moved along the rods 52 in one or the opposite direction, the mandrel rods will be expanded or contracted relatively to each other. The wind-up rollers are journalled in end plates 14, 15, the plate 14 being pivoted at 18 on a fixed support 16 and the plate 15 being slidable on a fixed support 17, the rollers being adjustable around the pivot 18 by means of a screwthreaded shaft 19 rotatable by a handle 22 and the amount of angular adjustment being indicated by a gauge plate on the support 17. U.S.A. Specification 2,291,707, is referred to.
Patent GB-784579-A (GB)
Title: Improvements in and relating to means for causing the rejection or segregation of articles such as cigarettes from a succession thereof in accordance with a detected or measured property of such articles
Inventor: HORGAN GEORGE DANIEL
IPC: A24C5/345
Filed: 1954-12-23
Abstract: 784,579. Rejecting defective cigarettes. INDUSTRIAL MACHINERY CO., Ltd. Nov. 29, 1955 [Dec. 23, 1954], No. 37239/54. Class 130. [Also in Group XXX] Energization of an electromagnet 14, by a device responsive to undesired variation in tobacco content or density of one of a plurality of aligned axially-moving cigarettes 28 on a conveyer 27, causes its resiliently or pivotallymounted armature 16 to move against spring- loading 18 and strike an appropriate one of steel pins 4 and slide it in a rotary pin carrier 1 to abut a vulcanized fibre stop-plate 21, rebound being prevented by permanent or other magnets 22; the pin is returned by a circular ramp 24 having an intermediate non-inclined portion which positions the pin to contact a lever 29 which it first depresses against a strong spring 38 and then releases so that in returning to abut a stop 29a the lever 29 forces a lever 33, normally held against it by a weak spring 39, to fly clear and act through an end-plate 35 to deflect the defective cigarette into a receptacle or on to a parallel conveyer leading thereto. The electromagnet 14 and plate 21 are mounted on a shaft 8 turnable by its squared end 43, when a grub screw or screws 42 in its support 9 are slackened, to allow timing adjustment. The cigarettes 28 come from a continuous-rod machine and may be held to the conveyer 27 adjacent the plate 35 by a driven roller (not shown). The device energizing the electromagnet 14 may be as disclosed in Specification 744,311, [Group XXXVI]. The pin 4 need not be partially returned before operating the lever 29.
Patent GB-1358760-A (GB)
Title: Process for the selection of biochemically-active substances
IPC: C12Q1/18
Filed: 1971-08-09
Abstract: 1358760 Microbiological testing involving algae CHEMIEKOMBINAT BITTERFELD VEB 9 Aug 1971 37311/71 Heading C6F A process for evaluating biochemically-active compounds such as herbicides, insecticides, acaricides, fungicides and pharmaceuticals involves bringing a definite amount of the chemical compound into direct contact with phased (or unphased) liquid cultures of monocellular green algae i.e. Chlorella pyrenoidosa and comparing the cell growth or reproduction rate thereof with an untreated control culture grown under the same conditions. The growth conditions may be adjusted by variation of the nutrient solution, temperature, gas supplied and/or intensity and period of illumination, the chemical compounds brought into contact with the liquid culture in liquid, gaseous or solid form and the cell growth &c. rate compared by means of electronic particle counting, spectrocolorimetry or nephelometry. Examples disclose the testing at various concentration levels of a substantial number of biochemically-active substances.
Patent GB-1035239-A (GB)
Title: Improvements in and relating to gear changing mechanism
Inventor: PARRISH JOSEPH REGINALD
IPC: F16H15/40
Filed: 1963-09-23
Abstract: 1,035,239. Variable speed gear. PARRISH INSTRUMENTS Ltd. Nov. 30, 1964 [Sept. 23, 1963], No. 37321/63. Addition to 992,039. Heading F2D. In a variable speed friction gear of the type described in the parent Specification wherein a pair of idler balls 10 in a cage 15 engage driving and driven cones 5, 9, one or both cones is loaded axially to produce the frictional engaging pressure by a screw 20 which acts on the cone through a bearing 3 and sleeve 22. The cones may be radially preloaded by providing a resilient element between the bearing adjacent the small end of the cone and the housing.
Patent GB-801535-A (GB)
Title: Apparatus for collecting magnetic susceptible material
IPC: B03C1/23
Filed: 1956-12-06
Abstract: 801,535. Magnetic separators. RESEARCH CORPORATION. Dec. 6, 1956 [March 13, 1956], No. 37330/56. Class 117 Magnetic separation apparatus which may be combined with an electrostatic precipitator includes a rotatable magnetic member arranged so as to alternately increase and decrease flux flow in a magnetic separator field between spaced magnet poles, a stream of material undergoing separation being directed through said field. In Fig. 1, wet separation apparatus comprises two pole pieces 14 rotatable between poles 10 energized by windings 12 and provided with by-pass extensions 38, a magnetic member 42 in a gap 40 between the extensions being rotatable by a motor 44. Magnetic material in slurry 34 passes into collecting passages 28 of a non-magnetic container 20, and non-magnetic material passes via a central passage 26 to a collection point. The normal tendency for the magnetic material to collect and adhere to portions 22 of the container 20 under the influence of the pole pieces 14 is reduced by rotation of the member 42 which alternately increases and decreases the flux gap between the extensions 38. Flux between the poles 10 is thus alternately shifted to and from the gap 40 and periodic movement of the magnetic material attracted to the container portions 22 results. In a modification, Fig. 2, magnetic material is collected on a non-magnetic plate 46, and when the magnetic field between poles 54 decreases as a result of a magnetic member 58 being aligned with pole extensions 56, the collected magnetic material is permitted to fall into a passage 62. In Fig. 4, a magnetic and electrostatic separator for treating gas comprises a housing 64 containing collecting electrodes 80 and discharge electrodes 78. A high tension frame (not shown) supports the electrodes 78, and opposite ends of alternate electrodes 80 are secured to opposite yoke arms 92 of an electromagnet 84 thus providing differing polarity between adjacent plates and creating a magnetic field between them. Non- magnetic bridge pieces 102 are also used to secure the electrode members 80, and flux between the latter is alternately decreased and increased by means of a rotatable magnetic member 98; A.C. is supplied via a rectifier 90. In a modification. Fig. 5,. (not shown), the gas, as it enters the apparatus, is subjected to a charging field which ionises the magnetically susceptible. dust particles. Insulated plates are substituted for the discharge electrodes of the Fig. 4 construction. Permanent magnets. may be used in place of the electromagnets..
Patent GB-963243-A (GB)
Title: Tube bundle extractor for heat exchangers
IPC: B23P19/02
Filed: 1962-10-02
Abstract: 963,243. Tube extractors. CALIFORNIA RESEARCH CORPORATION. Oct. 2, 1962 [Oct. 2, 1961], No. 37427/62. Heading B4C. [Also in Division B8] A bundle of tubes 66, Fig. 1, for a heat exchanger is supported, whilst being inserted or withdrawn, by a beam 50 on which run trolleys 58, 60, 68. The weight of the tubes is supported by band slings 62, 64 and the tubes are moved by an air motor 196 through a bar 228. Whilst the pipe bundle is being moved the beam 50 is clamped to the shell 48 of the bundle by arms 70, 72, Fig. 3, which have parallel linkage rods 96 and are opened and closed by a hand wheel 124 and a screw and nut device 104, 106, 110, 112, 116. These arms are clamped to plates 132, 134, or 144, 146, which are bolted to the shell, by bolts 92 and cross-pieces 160, Fig. 4. In a first embodiment the air motor 196, Fig. 7, moves the rod 228 and with it the bundle of tubes, by concentric screws 206, 216, interconnected by recirculating balls 212. When the screw pulls or pushes on the tubes the carriage 68, Fig. 5, tilts, and bearing pads 178, 180, 182, 184 jam it in position on the beam. Formulµ are given for calculating the dimensions of the carriage to ensure this jamming. On reaching the end of its travel, limit switches 324, Fig. 7, or 326, are operated by members 314, 322 to reverse the direction of the air motor to turn the screw in the opposite direction. These limit switches also cause a wheel 240, Fig. 5, to be depressed by a pneumatic cylinder 244, thereby raising the carriage 68 until wheels 246, 250 abut the underside of the beam 50. In this condition the carriage is moved along the beam by the screw instead of jamming so that it becomes suitably positioned for another pull or push on the tubes. The pneumatic control circuit is diagrammatically illustrated in Fig. 15 (not shown). In a second embodiment the tubes are pulled or pushed by a bar 532, Fig. 18, pivoted to a carriage 502 which is moved along a beam 500 on wheels 522 by a screw 506 and a nut 538, driven by a reversible air motor 504. The screw is long enough to allow the tubes to be pulled completely out in one movement and is centrally supported by a spring-loaded arm 540, Fig. 23, which is cammed aside as the nut 538 approaches. The effective length of the sling 64, Fig. 16, is adjusted by a hand wheel 456 and a screw 448 mounted on the carriage 60. The carriage is raised and lowered with respect to the beam 50 by an hydraulic piston device 390, 396 controlled by a release handle 419 and a manual pump 418. An eye 474 on one end of the sling is releasably pinned to the carriage 60 by a pin 476 with a handle 488.
Patent GB-1076749-A (GB)
Title: Indirectly heated cathodes
Inventor: JUDINSKAJA IRINA VASILJEVNA
IPC: H01J1/28
Filed: 1964-09-14
Abstract: 1,076,749. Thermionic cathodes. A. I. FIGNER, A. I. SOLOVLICHIK, and I. V. JUDINSKAJA. Sept. 14, 1964, No. 37524/64. Heading H1D. An indirectly - heated cathode comprises a porous body 1 of refractory metal, the pores of which are loaded with barium scandate, 3BaO.2Sc 2 O 3 , which constitutes 5 to 30% of the total weight of the porous body and emissive material. The porous body may be of W, Mo, Ta, Re, Nb, Hf or a metal of the Pt group. As shown, the emissive body 1 is pressed into a molybdenum support 2, 4 which surrounds heater 3 and ceramic insulator 5. The barium scandate may be prepared by sintering a powder mixture of scandium oxide with barium carbonate or barium peroxide in air at 1200-1300‹ C. for 10 hours. The barium scandate is crushed and used to impregnate a porous metal body or is mixed with a refractory metal powder, pressed and sintered to form body 1. The cathode is stable in air and provides a current density of 1.5 to 4 amps./cm.<SP>2</SP> at 1000-1100‹ C.
Patent GB-1345320-A (GB)
Title: Process for preparing stable glycopeptide antibiotics
IPC: C07H15/26
Filed: 1972-08-11
Abstract: 1345320 Glycopeptide antibiotics ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI 11 Aug 1972 [13 Aug 1971] 37580/72 Heading C2A A stable glycopeptide antibiotic having the partial structure II is prepared by oxidizing an unstable glycopeptide antibiotic having the partial structure I The oxidizing agent may be potassium ferricyanide, ferric chloride, mercuric acetate, manganese dioxide, lead dioxide, quinones and/ or oxygen. The unstable glycopeptide antibiotic may be used as a crude mixture thereof or in a form containing copper in the molecule. The unstable glycopeptide antibiotic having the partial structure I may be one of the phleomycins, YA-56 or zorbamycin. Oxidation may convert the antibiotic to one of the bleomycins or, in the case of YA-56, to dehydro YA-56.
Patent GB-376539-A (GB)
Abstract: 376,539. Door stays and fastenings. COLMAN & SONS, Ltd., T. B., Mortimer Road, and COLMAN, A. G., Kilkare, New Church Road, both in Hove, Sussex. Aug. 29, 1931, No. 24382. Addition to 268,444, [Class 20 (iii), Doors &c.]. [Classes 44 and 65 (i).] The wings a .. d, Fig. 1, of a collapsable revolving door, such as is described in the parent Specification, are interconnected by pivoted rods e, f, provided only in two of the compartments formed by the wings. The wings c, dare rigidly secured together while the wings a, b are hinged thereto. To each wing a, b is secured a slide j, one end of which is shown in elevation in Fig. 3a, terminating in a box m which houses a spring-pressed catch l. Pivoted at i to each of the rods e, f is a slipper h which engages in the slide j and has a recess k which is engaged by the catch l when the leaves are extended. The catch is released by a thumb-piece n. The stay rods e, f may be provided both at the top and bottom of the wings. In such case, the catches l are retained in the retracted position by a gravity catch o, Fig. 6, the weighted end p of which engages with the thumb-piece n when the latter is retracted.
Patent GB-1161895-A (GB)
Title: Shaft Bearing Assembly
IPC: F16C23/04
Filed: 1966-08-23
Abstract: 1,161,895. Bearings. MITSUBISHI JUKOGYO K.K. 23 Aug., 1966 [27 Aug., 1965; 5 Oct., 1965; 2 June, 1966], No. 37843/66. Heading F2A. To protect a high-speed rotor, e.g. of a turbine, from resonant vibration during rotation thereof, the bearings for the rotor journal are each provided with a radial clearance and means for supplying fluid under pressure to said clearance, each bearing having a portion extending over part of its surface towards which the journal will be urged by gravity and being constructed so that when the rotor is running and is not in balance, the journal is allowed to move laterally of the bearing in directions other than towards said portion and so that a point on the journal axis will oscillate laterally of the bearing through an arcuate path having a radius of curvature which is larger than said radial clearance and not less than about 0À05 mm. In the form shown in Fig. 2 the lower portion 5 of the oil lubricated, white metal lined, plain bearing 4 is transversely movable on rollers 6 which may be replaced by a spring. Oil supplied through ports 11 under pressure lubricates the bearing and fills the spaces around the movable part 5. In the bearing shown in Figs. 3 and 4 the low-pressure surface portions 8, 9 to each side of the lower portion 7 which are provided with oil grooves 12, 13 are of less area than the ungrooved lower portion which has an inlet port 14 through which high-pressure oil is admitted to cause the journal to float to allow the lateral movement to occur.
Patent GB-523349-A (GB)
Title: Improvements in or relating to structures impervious to liquids
IPC: C04B24/26
Filed: 1938-12-31
Abstract: 523,349. Floors. GEWERKSCHAFT KERAMCHEMIE-BERGGARTEN. Dec. 31, 1938, No. 37989. Convention date, Jan. 26, Addition to 497,185. [Class 20 (iv)] [Also in Groups XXIX, III, IV, V and XXVIII] The stratiform structures, such as containers, pipes or floors, forming the subject of the parent Specification are modified in that part or whole of the rubber in the cement and rubber layer, or in the intermediate layer, or in both, is replaced by specified synthetic substances, (Group IV), or mixtures of them. The cement employed may be for example alumina or Portland cement, or burnt gypsum, and the cement containing layer may be obtained by mixing the cement with aqueous dispersions of the synthetic substances and, if desired, with dispersions of rubber, reclaimed rubber, or both, the proportions being such that the mixture solidifies to a gel without substantial evaporation of water, which can be subsequently dried. Additions such as quartz, ground shale or slate, and kaolin may also be made. The intermediate layer may be applied in the form of an aqueous dispersion or a solution by spraying, or it may be applied in the form of plates. The top layer may consist of ceramic plates cemented on. Both the cement containing and intermediate layers may consist of a number of strata of varying compositions. Thus, when the cement layer is applied to an iron surface it may consist of strata of decreasing cement content towards the intermediate layer. According to an example for protecting a concrete floor against acids, the first layer comprises a mixture of a dispersion of a condensate of dischlorodiethyl ether and sodium tetrasulphide, zinc oxide, ammoniacal casein solution, quartz powder, and Portland cement; the second layer consists of slabs formed from polymerized vinyl derivatives, and the third of slabs of ceramic material.
Patent GB-1358731-A (GB)
Title: Process for producing concentrated nitric acid
Inventor: VISCONTI R
IPC: C01B21/26
Filed: 1971-08-12
Abstract: 1358731 Nitric acid and nitrogen oxides MONTECATINI EDISON SpA 12 Aug 1971 [13 Aug 1970] 38002/71 Heading C1A Nitric acid having a concentration higher than 68% by weight of HNO 3 -the azeotropic concentration-is prepared by freeing gases obtained by the combustion of ammonia from water in the condenser 2, oxidizing in vessel 4 to eliminate at least part of their NO content and then absorbing the resulting gases at a pressure of 2-6 atmospheres absolute by passing them through vessel 5 countercurrent to nitric acid having a concentration of 70 to 95% by wt. coming from the bottom of still 8 where acid from 5 is distilled, the N 2 O 4  emerging at 9 as a liquid which is passed to reactor 14/15 where it is mixed with an azeotropic or sub-azeotropic nitric acid (i.e. a concentration not more than 68% by wt. HNO 3 ) from fractional distillation column 19, the ratio by weight of the subazeotropic acid or azeotropic acid to N 2 O 4  being from 1 : 1À5 to 1 : 5, and the product is fractionally distilled in still 19 to give nitric acid having a concentration higher than 68% by wt. and a nitric acid having a concentration up to 60% by wt. This latter acid may be recycled to the reactor 14/15. Preferably the acid which reacts in 14 with the N 2 O 4  has the azeotropic concentration 68% by wt. The temperature in the reactor 14 may be 35 to 60 C. and in the absorber 5 it may be- 15 to + 10 C. Preferably the reactor comprises two sections the first 14 in which the N 2 O 4  reacts with the acid and the second 15 in which the N 2 O 4  is absorbed by the acid. The N 2 O 4  still dissolved in the acid having a concentration greater than 68% by weight HNO 3  may be stripped in stripper 17 using an air stream from 21. The waste gases from the reactor and the stripper may be recycled to the absorbing step to remove their N 2 O 4  content before releasing to the atmosphere.
Patent GB-380972-A (GB)
Abstract: 380,972. Hooks. CHOAT, H. G., 21, Sutherland Avenue, Sunburyon-Thames. Oct. 23, 1931, No. 29439. [Class 89 (ii).] The peg 9 being pivoted between cheeks on a rotatable pin 5 can turn both horizontally and vertically.
Patent GB-897626-A (GB)
Title: Improved circuit arrangements for electric power supply systems on movable craft
Inventor: STRAND THOMAS JOHN
IPC: B63H23/24
Filed: 1957-12-09
Abstract: 897,626. Transmitting mechanical power. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 8, 1958 [Dec. 9, 1957], No. 38226/57. Class 38 (4). An electric power plant for movable craft such as ships comprises at least two alternators, one connectible to supply at least one propulsion motor and the other connectible to supply at least one auxiliary motor, the two alternators being magnetically and electrically aligned and their rotors mechanically coupled together to ensure a predetermined phase relationship between the alternator output. The two alternators may be driven from the same prime mover which may be a gas-turbine and non-reversible. Means may be provided to control the voltage supplied to the propulsion motor which may be an induction motor of the polyphase type with means for changing over two phases to reverse the motor rotation during which changeover the alternator excitation may be reduced to zero. Means may also be provided to maintain the speed of the prime mover at a desired value.