baber/WOPTO huggingface dataset:
Patent GB-653047-A (GB)
Title: Improvements in or relating to constant pressure pumps, pumping systems and methods of controlling a flow of fluid
IPC: F04C14/22
Filed: 1948-12-01
Abstract: 653,047. Rotary pumps, HUFFERD, G. H., and HOUDAILLE-HERSHEY CORPORATION. Dec. 1, 1948, No. 31129. Convention date, April 2. [Class 110(ii)] A constant delivery pressure, variable-displacement pump, of the outwardly-sliding vane type, has a slidable casing 38 and end chambers 43, 44 subject to pressures which may be made different to alter the vertical position of the casing. Springs 50 holds the casing down against a stop 49, Fig. 4, to secure maximum pump capacity for starting-up purposes. Loose rings 21 in recesses 22, in the rotor 17, keep the vane tips in contact with the working- chamber bore. The pressures in chambers 43, 44 are controlled by a valve 60 in conjunction with passages which connect with pump inlet and outlet points 47, 45. Fig. 8 shows end chambers 43, 44 both under delivery pressure by way of a duct 41 which is open to the port 45. When delivery pressure increases it acts through a passageway 73, 74 on valve 60 which moves until a groove 64 coincides with a port 62 to relieve the pressure in chamber 43 through a passageway 55, 57 and a port 67 leading to the suction end of the control chamber 54 and ducts 52, 53. This causes the casing 38 to slide upwards and reduce the pump displacement. The initial position of the valve 60 is then restored through the spring 68. The space interval between ports 62. 63 reduces the tendency of the valve 60 to " hunt." Check valves may be used in the ducts to prevent sudden surges of liquid from or to the chambers 43, 44. In a modified arrangement, (Figs. 9, 10, not shown), the connecting ducts and valve structure are carried in the outer housing 29 instead of in the casing 38. Fig. 11 shows another form in which the control of high-pressure fluid to opposite sides of the casing is different. A duct allows deliyery fluid to flow to pressure areas P<SP>1</SP>, P<SP>2</SP> and as an alternative, or additionally, a duct DD allows restricted communication between the areas P<SP>1</SP>, P<SP>2</SP>. On increase in delivery pressure the valve 115 moves to the left until a high-pressure groove 117 moves into registration with a duct 129 so that additional high-pressure fluid passes to the area P', the stop 126 being previously raised from its lowest position. At the same time a groove 118 registers with a duct 130 and opens the area P' to the suction side of the pump causing the casing M to shift. In the neutral position of the valve 115, grooves 117, 118 are between ducts 123, 130 and ducts 125, 129 lie between the grooves.
Patent GB-1419815-A (GB)
Title: Vinyl benzyl ethers and thickening agents and coating compositions  prepared therefrom
IPC: C08F283/06
Filed: 1973-06-29
Abstract: 1419815 Vinyl benzyl ethers; addition copolymers; thickened latexes DOW CHEMICAL CO 29 June 1973 [29 June 1972 (3) 11 May 1973] 31149/73 Headings C3R and C3P Novel vinyl benzyl ethers of the formula where R denotes H or methyl, m is 10 to 100, Y denotes -OR 1 , -SR 1 , -NR 2 R 3 , -OCOR 1 , or -N(R 3 )COR 2 , R 1  denotes a C 10-22  alkyl, aralkyl or alkaryl hydrophobic group, R 2  denotes C 1-22  alkyl, R 3  denotes H or C 1-22  and the joint carbon content of R 2  and R 3  is at least 10C, are prepared by reacting a vinylbenzylhalide of the formula (wherein X denotes halogen) with a non-ionic surfactant of the formula H(OCHRCH 2 ) m Y. The novel ethers may be addition copolymerized with one or more copolymerizable monomers containing at least a water solubilizing amount of a monomer having a carboxylic, anhydride, sulphate, sulphonate, carboxamide or hydroxyl group. The resulting copolymers may be used to thicken aqueous coating compositions based on emulsions of water insoluble film forming vinyl addition polymers and optional amounts of pigments. Example (1) describes the preparation of a vinyl benzyl ether monomer from a nonyl phenol adduct of 40 ethylene oxide units and vinyl benzyl chloride; a list of further analogous products is also disclosed; further examples describe the preparation of copolymers of vinyl benzyl ether monomers with (2, 6 and 7) a mixture of maleic anhydride and styrene, (3) acrylamide, (13 and 14) a mixture of styrene and methacrylic acid, (15 and 16) a mixture of isobutylene and maleic anhydride, (17 and 18) a mixture of styrene, maleic anhydride and itaconic acid, and (19, 20 and 21) a mixture of styrene, maleic anhydride and methacrylic acid; in further examples (4, 5 and 22) the copolymers are used to thicken acrylic and polyvinyl acetate latexes, and (9, 10 and 11) copolymer thickened latexes based on acrylic, styrene-butadiene and vinyl acetate polymers are formulated into paint compositions.
Patent GB-257146-A (GB)
Title: Improvements in and connected with collapsible tables, trestles, benches, supports and the like
Filed: 1925-12-10
Abstract: 257,146. Lea, E. J. Dec. 10, 1925. Trestles.-Telescopic legs a are connected in pairs by diagonal stays b which are pivoted to the upper ends of the inner tubes a<1> and to the bases of the outer tubes a<2>, so as to fold as shown in Fig. 2, a horizontal stay d hinged at e to the legs folds upward about a rule-joint f. The stays b may be centrally pivoted at c'.
Patent GB-1211316-A (GB)
Title: Apparatus for determining the position of a radioactive source
Inventor: LALOY PAUL
IPC: G01N23/18
Filed: 1969-06-20
Abstract: 1,211,316. Recording tracks of particles. COMMISSARIAT A L'ENERGIE ATOMIQUE. 20 June, 1969 [23 July, 1968], No. 31245/69. Heading G6P. In a radiographic inspection device, the position of the radio-active source within the device is determined, accurately, photographically. The gamma radiation source, 1, is surrounded by the dense metal cylinder, 15, slotted at 16. A film, 20, is mounted round the periphery of 15 and images of the slots, 16, are formed on 20, the position of the source being indicated by the position of the darkest image on the film.
Patent GB-1068543-A (GB)
Title: Anion exchange resins
IPC: C08F8/30
Filed: 1964-08-04
Abstract: An anion-exchange resin comprises a cross-linked polymer backbone, e.g. a styrene/divinyl-benzene polymer, having guanidyl groups attached to such a backbone but not forming part thereof e.g. by attachment via methylene groups.  The resin, which may be porous, may be prepared by reacting a chloro-methylated styrene/divinylbenzene resin in bead form with guanidine or a substituted guanidine in which the substituent is non-reactive with the chloromethyl groups, e.g. tetramethyl guanidine, at 0 DEG -70 DEG  C. in a solvent which is a mixture of a C1- 4 alkanol, e.g. ethanol, and a swelling agent for the polymer e.g. tetrahydrofuran, dioxane or the dimethyl ether of diethylene glycol.  The resin may be used to remove components from liquids.
Patent GB-1489847-A (GB)
Title: Hydraulically driven vibrator
IPC: E02D7/18
Filed: 1975-07-25
Abstract: 1489847 Hydraulically driven eccentric mass vibrators P SCHMIDT [trading as TRACTOTECHNIK PAUL SCHMIDT] 25 July 1975 [4 Sept 1974] 31311/75 Heading F2X An hydraulically driven eccentric mass vibrator comprises two pairs of out-of-balance masses rotatably driven about a common axis 26, one pair 28, 30 in one direction, the other pair 32, 32 in the other direction, by an hydraulic motor 36 offset from the common axis. The masses 28, 30 are keyed on a rotatable shaft 26 defining the common axis, and the masses 32, 32 are rotatable on a fixed hollow shaft 27. The hydraulic motor 36, through a reversing gear-box (not shown), produces oppositely rotating outputs, one of which drives, through sprocket wheel 38 chain or belt 40 and drive wheel 42, the shaft 26 and masses 28, 30, and the other of which drives through sprocket wheel 44, chain or belt 46 and drive wheel 48, the masses 32, 32. As the pairs of masses are counter-rotating, their effect is cancelled after 90 degrees rotation from the position shown in Fig. 2, and is greatest after 180 degrees. The vibrator is mounted in the frame 10 of a sheet pile extractor or driver, which utilizes two further hydraulic motors.
Patent GB-446747-A (GB)
Title: Improvements relating to instruments for heat and other treatment of cavities of the body
IPC: A61B18/08
Filed: 1934-11-01
Abstract: 446,747. Heat and other medical treatment apparatus. MOORE, W. G., and HARPMAN, A., 3, St. James's Square, Pall Mall, London. Nov. 1, 1934, No. 31312. [Class 81 (ii)] Apparatus for heat and irrigation treatment of nasal and other cavities of the body comprises a hollow rod 17, Fig. 1, of insulating material, having longitudinal grooves in which is laid a heating filament 21. The filament extends round the closed free end of the tube and is connected to a plug 16 by flex 15 passing through a clamp 11. Irrigating liquid may be supplied through an opening in clamp 11 closed by a screw-plug or the like 19, the liquid issuing at the closed end of the tube through apertures 20 therein. The plug 16 is engageable in alternative sockets 30, Fig. 4 connected through a rheostat 29 to a, stepdown transformer 28 across the mains. The parts 28 .. 30 are enclosed in a box 24 also enclosing in other compartments an electric motor 31 driving a shaft 33 connected to a flexible shaft 35. A rectangular plate 39, connected to and rotated by the shaft 35, may be held by means of a handle 37, against the tube 17 to apply vibration treatment through the tube and to facilitate insertion thereof. The Provisional Specification refers to the provision of indicating instruments in connection with the apparatus and to making the tube 17 of material containing metals such as titanium platinum, silver, and gold.
Patent GB-1329167-A (GB)
Title: Multi-cylinder pulse charging system
IPC: F01N13/10
Filed: 1971-07-05
Abstract: 1329167 I.C. engine exhaust pipes OUTBOARD MARINE CORP 5 July 1971 [13 July 1970] 31382/71 Heading F1B Two-stroke outboard motor engine has more than two cylinders, each cylinder having an exhaust port, and a lower unit consisting of a drive shaft housing which supports the engine block and a port which is connected to the housing, extends into the water under normal operating conditions and supports a propeller; an exhaust pipe has one end located adjacent the top of the housing and extends into the housing and an exhaust passageway system positioned between the exhaust ports and the housing has an outlet communicating with the exhaust pipe and respective passageways communicating with each exhaust port, the passageways being of equal acoustical flow length so that the compressive wave occuring at the opening of the exhaust port of a cylinder which has just fired arrives at the exhaust port of the next cylinder to fire, just prior to the closing of the exhaust port of that cylinder, thus decreasing the amount of combustible charge lost through the port. A four cylinder two-stroke V-engine has the cylinders arranged in two pairs with the cylinders of each pair one above the other and their axes in a common plane, the angle between the planes being 90 degrees. The exhaust gas passageway system 73 is attached to the engine block and conducts the exhaust gas from the ports 39, (41) 43 and (47) to the exhaust pipe 77. The length of the exhaust gas ducts is such that the acoustical flow distance between the exhaust gas port of a cylinder which has just fired and the exhaust gas port of the cylinder which will be charged next causes the compressive wave emerging from the previously fired cylinder to arrive at the exhaust port of the next cylinder to be charged shortly in advance of the closing of the exhaust port of that cylinder, which will thus be subject to a pressure increase. The effect occurs when the engine is operating at normal temperature and in the high speed range. The system is also designed so that the outgoing compressive wave will generate a returning rarefaction wave which arrives at the generating cylinder when the piston is at bottom dead centre to increase scavenging. Modified forms of the exhaust gas passageway system are shown which are suitable for 3-cylinder in-line engines and 6-cylinder inline or V-engines.
Patent GB-1038930-A (GB)
Title: Improvements in or relating to pressure-bar and carrier units for wood shearing machines
IPC: B27L5/06
Filed: 1965-07-23
Abstract: 1,038,930. Woodworking. A. CREMONA. July 23, 1965 [April 3, 1965], No. 31533/65. Heading B5L. A pressure bar and carrier unit 1 for a wood shearing machine comprises an inner cavity 3 adapted to be filled with liquid and containing one or more heating elements 4. The unit 1 carries a pressure bar 2. The liquid which is heated by the elements 4 warms the unit so that condensation does not form on the unit during the shearing of hot wood.
Patent GB-1120312-A (GB)
Title: Flotation process and apparatus
Inventor: SMITH SYDNEY
IPC: B03D1/14
Filed: 1965-07-23
Abstract: Impurities in the form of particles or oily materials dispersed in a liquid are separated by adding to the liquid a flocculation or precipitation agent to coagulate the impurities and electrolysing the liquid to form gas bubbles in sufficient amount to accomplish flotation of the impurities, the electrodes used for electrolysing being horizontal and disposed one above the other, the upper electrode being perforated to allow passage of gas bubbles from the lower electrode.
Patent GB-957202-A (GB)
Title: Improvements in or relating to electric signal receivers
Inventor: SNEATH OSWALD BARBER
IPC: H04B5/00
Filed: 1960-09-13
Abstract: 957,202. Inductances. MULTITONE ELECTRIC CO. Ltd. Sept. 22, 1961 [Sept. 13, 1960], No. 31550/60. Heading H1T. [Also in Divisions H3 and H4] A paging system receiver for speech modulated low-frequency ratio waves radiated within a confined area from surrounding wires comprises a pick-up coil L1 wound on an axially movable ferrite rod with or without a bobbin and/or paper interleaving with plural tappings so that the windings between adjacent tappings and between each terminal and adjacent tappings are all of the same axial length and are uniformly distributed over the coil length; the coil being tunable by axial movement of the core at one frequency and thereafter being correctly tuned at other frequencies selected by a tapping switch connecting a damping resistance and series capacitors C1 C2 across the coil. The junction of the capacitors is connected to the base of transistor T1 whose collector circuit incorporates tuning coil L2 wound on a ferromagnetic core with a gap bridged by a tuning slug and having corresponging switchable taps shunted by tuning capacitor C3 and damping resistor R12. Capacitor C4 couples the output to the base of rectifier/amplifier transistor T2 whose collector circuit includes earpiece P. Potentiometer R1 regulates the bias current of transistor T1 through resistor R2 to set the weak signal gain and AVC level, while signals on the base of T2 develops a positive mean potential fed back over resistor R3 to control the gain of T1. In a modification (Fig. 2, not shown), the output of L2 is applied to the base of a further amplifying transistor coupled over an aperiodic transformer to a rectifier/amplifier transistor feeding an earpiece, and deriving AVC bias applied to the amplifying transistors as before.
Patent GB-974017-A (GB)
Title: Improvements in or relating to pipeline supports
Inventor: BROADLEY DONALD
IPC: F16L59/13
Filed: 1962-08-16
Abstract: 974,017. Supporting pipes. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Aug. 6, 1963 [Aug. 16, 1962], No. 31574/62. Heading F2P. In a pipeline comprising two coaxial pipelines 2, 3, the inner pipeline 2 has a sleeve member 1 provided with a number of radially diverging finger-like members 4 for resiliently supporting the pipeline 2 within the pipeline 3. As shown, there are finger-like members 4a less flexible than the members 4 and which substantially resist differential linear expansion of the pipelines. The pipeline 2 may have locating strips 5 which engage with co-operating slits 6 in the sleeve 1. The annulus defined by the pipelines provides a jacket for static helium and there is provision for sampling the jacket gas so as to be able to detect leakage of gas and fission products from the inner to the outer pipeline.
Patent GB-1509486-A (GB)
Title: Integrated circuits
IPC: H01L29/78
Filed: 1976-07-29
Abstract: 1509486 Integrated circuits SIEMENS AG 29 July 1976 [22 Aug 1975] 31595/76 Heading H1K The invention provides a process for the manufacture of an integrated circuit containing an N-channel MISFET and a P-channel junction gate FET (JFET). A thick insulating layer, e.g. of SiO2, is provided on a semi-conductor substrate 1, e.g. of P-type Si, and the portion of the layer overlying the substrate area 3 where the channel of the JFET is to be formed is thinned, preferably by etching and regrowth of thin oxide. N-type ions, e.g. of P, are implanted into the substrate area 3 (Fig. 2) through the thinned oxide portion, which is subsequently thickened once more. The implantation is carried out so that the maximum concentration of implanted dopant is 0À5-2À0 microns below the substrate surface. Windows 6, 7, 8 for MISFET source and drain and JFET gate terminal locations are etched through the insulating layer and an N-type dopant 9 such as P is deposited therein. During the subsequent drive-in heating stage to form regions 16, 17 and 11 the implanted dopant in area 3 diffuses deeper to form the JFET gate region 18 overlapping the gate terminal region 11, and at the same time the windows 6, 7, 8 are reclosed. The insulation above area 3 is once more thinned and a P-type dopant such as B is ion-implanted and then driven in to form the J-FET channel region 3 within gate region 18. In a modification the B and P ion implantations are effected simultaneously at the first implantation stage, the necessary differentiation into N-type gate region 18 and P-type channel region 3 occurring during drive-in by virtue of the different diffusion rates of B and P in Si. Source and drain contact apertures 13, 14 for the JFET and 20, 21 for the MISFET, and JFET gate terminal aperture 12 are opened through the insulating layer, and a thin MISFET gate oxide is provided, e.g. by etching and regrowth. Finally electrodes, &c. 23, e.g. of Al, are provided.
Patent GB-378723-A (GB)
Title: Improvements in or relating to fuel injection devices for internal combustion engines
IPC: F02M53/04
Filed: 1931-11-16
Abstract: 378,723. Cooling fuel injectors. DINNER, H., Ennenda, Glarus, Switzerland. Nov. 16, 1931, No. 31703. Convention date, Dec. 20, 1930. [Class 7 (iii).] A fuel injector 7 is mounted so that it can be withdrawn from a casing 1 having at its lower end a chamber 4 through which cooling liquid is circulated by pipes 9, 10. The injector has an annular recess which houses a rubber ring 6 or other packing which forms a fluidtight joint with the casing 1.
Patent GB-263145-A (GB)
Title: Improvements in or relating to discharge troughs for cooling beds of rolling mill installations
IPC: B21B43/00
Filed: 1926-12-14
Abstract: 263,145. Krupp Grusonwerk Akt.- Ges., F. Dec. 15, 1925, [Convention date]. Rolling; roller tables. - In a rolling mill plant, the work is delivered from the shears by rollers 13 into two or more troughs 2, 3 in which the work is lifted by slides 5, 5<1>, or pivoted flaps to discharge the work to a cooling-bed 1. A table 10 is pivoted on the partition between the troughs in order that the work discharged from the trough 2 may clear the trough 3. Where more than two troughs are provided, the table 10 may overhang only the adjacent trough, so that the work descends to the cooling-bed in steps; or each table may extend to the cooling-bed. The troughs and feeding-slides &c. may be disposed at an angle to the vertical, the feed rollers 15, Fig. 3 being stepped and coned to suit. The tables 10 may be linked to the lifting slides or flaps so that ready access may be had to the troughs normally overhung by the tables.
Patent GB-469584-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/34
Filed: 1936-11-20
Abstract: 469,584. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. Nov. 20, 1936, No. 31804. Convention date, March 21. [Class 39 (i)] Concentric leading-in conductors are sealed into a discharge device, the inner ends of the conductors are arranged in fixed relation to each other, and one of the conductors comprises between its inner end and the sealing point a metallic braid or like flexible member. An anode 1 is sealed to glass bulbs 2, 3 which are sealed through metal parts 4 to tubular conductors 5, 8. A bulb 6 is sealed to the conductor 5 and the conductor 8 is sealed through a glass portion 9 and a metal portion 10 to a tube secured on an inner conductor 12 which is closed at its outer end by a disc 14 soldered thereon. A grid is wound on wires 16 screwed into a flanged member 17 which is secured by screws on the perforated end of the conductor 5. Screens 22 are supported through members 21 on the member 17. The filaments 37 are supported on hooks 44 which are secured to a plate 45 adapted to rock on a polished stud 42 soldered to a disc 43. Cross-pieces secure the disc 43 to a flanged member 38 in which the filament-tensioning rod 27 is screwed. Notched screens 46 register the hooks 44 and are supported by rods from the plate 45 and separated by springs. The rod 27 is spaced from the conductor 5 by star-shaped insulators 24, 25 fixed by rings 26. The filament is tensioned by springs 28, 29 held in members 30 and the tension may be adjusted by the nuts 34. The other ends of the filaments are bound to two groups of conductors 52 which are connected respectively to an end-cap 65, screwed to the conductor 8, and to a member 66 carried by a tube 67 which is connected to the inner conductor 12 through a flexible braid 69. The terminal 66 is arranged between insulating members 73, 74 which are screwed to a plate 75 screwed to the end cap 62. The conductors 52 are fixed by spiral springs within one or the other of two screens each of which comprises a plate clipped riveted or soldered to a ring 59. Screens 80, 81, 86 protect the seals, and the anode is provided with a water jacket 83 having a supply pipe 82, discharge pipes 84, 85 and suitable guides for the water.