baber/WOPTO huggingface dataset:
Patent GB-646054-A (GB)
Title: Improvements relating to scavenging air conduits of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1947-01-20
Abstract: 646,054. Cylinders. AKTIEBOLAGET ATLAS DIESEL. Jan. 20, 1947, No. 33068/48. Convention date, Dec. 5, 1946. Divided out of 646,021. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 30, 1948.]. Drawings to Specification. [Class 7(ii)] In a two-stroke engine provided with a curved scavenging air passage 10, Specification 646,021, a longitudinal wall 4 and two transverse walls 2 integral with the frame extend up to the cylinder housing 5 surrounding the ports. The passage 10 may be integral with the housing 5. The walls of two or more cylinders may form an integral casting. They way be welded from sheet metal and have a detachable longitudinal side. The Specification as open to inspection under Sect. 91 comprises also omitting the passage 10 and arranging the walls 2, 4 to constitute a passage for the scavenging air. This subject-matter does not appear in the Specification as accepted.
Patent GB-1428879-A (GB)
Title: Monoazo pigments and process for their manufacture
IPC: C09B29/52
Filed: 1974-07-26
Abstract: 1428879 Mono-azo pigments from barbituric acid and its derivatives CIBA-GEIGY AG 26 July 1974 [27 July 1973] 33089/74 Heading C4P Novel pigments of the formula (wherein R 1  is H, C 1-4  alkyl or optionally substituted aryl; R 2  is R 1  or optionally substituted aralkyl, or -NR 1 R 2  is a 5- or 6- membered heterocycle; R 3  is H, halogen, or C 1-4  alkyl; R 4  and R 5  are H, C 1-4  alkyl or optionally substituted phenyl, the substituents being halogen or C 1-4  alkyl or alkoxy; X is O or NH; Y is O, S or NH; and Z is halogen, C 1-4  alkyl or alkoxy or optionally substituted aryloxy; and -CONR 1 R 2  is m or p to -N = N-) are prepared by coupling the appropriate diazotized aniline carboxamide with the appropriate barbituric acid. The pigments may be after-treated with organic solvents, e.g. by heating to 100-150‹ C., to improve their fastness to light and migration. They may be used for pigmenting high molecular weight organic material, e.g. for the mass colouration of polymers and in paints, lacquers and inks.
Patent GB-1158682-A (GB)
Title: High Current Square Wave Power Source
IPC: H03K3/352
Filed: 1967-07-19
Abstract: 1,158,682. Welding by pressure. CONTINENTAL CAN CO. Inc. 19 July, 1967 [26 July, 1966], No. 33105/67. Heading B3R. [Also in Divisions H2 and H3] A pressure seam-welding apparatus for welding seams in a continuous procession of cans, such as 28-30, at a rate in the order of 100 linear feet per second comprises circuit means (Divisions H2, and H3) for producing square flat-topped welding current pulses of 10,000 amperes amplitude and 500 cycles per second repetition rate, the circuit including various capacitive, inductive and resistive elements whereby to provide the pulses with steep fronts thus ensuring a continuous weld of acceptable quality.
Patent GB-400432-A (GB)
Title: Arrangement of the driving motor in power-vehicles
IPC: B60K5/00
Filed: 1932-11-23
Abstract: 400,432. Motor vehicles. PORSCHE GES., Dr. Ing. h.c. F., 24, Kronenstrasse, Stuttgart, Germany. Nov. 23, 1932, Nos. 33141 and 33142. Convention dates, Nov. 24, 1931 and Jan. 21, 1932. [Class 79 (iii).] In a vehicle driven by a motor of the radial type, and more particularly a vehicle having driven articulated half-axles arranged on either side of a central frame member, the motor is arranged with its axis downwardly inclined either forwardly or rearwardly in the direction of travel, the motor, clutch, transmission, differential, and change-speed gearing being preferably combined in a single block. In the form shown in Fig. 1, the engine 4 has its cylinders parallel with an inclined back-rest 9, and is connected with casings 5, 6, 7, 2, containing respectively the flywheel and clutch, the transmission, the change-speed gear, and the differential and articulated axles 3, the combined block being connected by flanges 11 to a central longitudinal frame member 1. The parts are protected by a cover 8. In another arrangement, the axis of the motor is inclined downwardly and forwardly, the backrest 9 being parallel to a plane passing through the tips of the upper cylinders and through the end of the casing 7. In the form shown In Fig. 4, the dynamo 12 and the fan 13 are combined with the motor block, which is supported in a dished extension 1a of the frame member 1. Cylindrical side projections 15 on the block are secured in recesses 16 in the extension 1a by straps 17 and bolts 18, rubber &c. packing being interposed. Connection is also made to the end of the extension 1a by one or a pair of screw bolts 20. The fan 13 draws air through an inlet slot 23, over a fuel tank 25, and through a radiator 24.
Patent GB-466282-A (GB)
Title: Improvements in circuit arrangements for producing grid potential for grid controlled multi-phase electric discharge devices
IPC: H02M1/04
Filed: 1935-11-30
Abstract: 466,282. Converting. SIEMENS SCHUCKERTWERKE AKT.-GES. Nov. 30, 1935, No. 33265. Convention date, Dec. 1, 1934. [Class 38 (ii)] Grid control voltages of various shapes, particularly flat topped, for discharge devices, are obtained by combining a number of phase displaced peaky voltages of the form shown in Fig. 3. The peaky voltages are obtained from transformers working at saturation. Fig. 4a shows a symmetrical potential formed from six phase displaced components. By rectifying one or more of the components, the waveform is altered by the lengthening or shortening of the positive half wave. Fig. 11 shows a circuit in which the secondary 26 is connected in circuit with the secondaries 21, 22, 23, 24 and 25 through a rectifier bridge 34. The resistances 35, 36 and rectifier 37 are provided to avoid dissymmetry. The amplitudes of the various components may be graded giving, e.g. a wave form as shown in Fig. 13. Means may also be provided for making the negative peak of a component different in amplitude from the positive peak. A waveform having a steep front as shown in Fig. 15 may be obtained by providing common yokes to the pairs of transformers I, II ; III, IV and V, VI, Fig. 11, these yokes being dimensioned so as to saturate. Alternatively, two three-phase transformers having a common yoke or two three-phase transformers with their fluxes displaced less than 30‹ may be used.
Patent GB-1300575-A (GB)
Title: Improvements in printing plate locking devices
Inventor: HART MICHAEL LEONARD
IPC: B41F27/12
Filed: 1969-07-01
Abstract: 1300575 Mounting printing plates BAKER PERKINS Ltd 15 June 1970 [1 July 1969] 33297/69 Heading B6C Flexible printing plates are secured to a printing cylinder with gripper mechanism having means whereby the plates may be skewed for registration purposes and the plate gripper head is independently movable longitudinally. In the embodiment of Fig. 1 the leading edge is held by a gripper head 31 forming part of a longitudinal gripper blade 26 held by a bar 17 and readily movable longitudinally of the cylinder by releasing clamping screws 23. The trailing edge is held by longitudinally spaced pivotably mounted resiliently loaded gripper heads 35 actuable for release purposes by shaft mounted cams 37. In the embodiment of Fig. 5 each gripper head 231, 235, is adapted to receive either the leading or trailing edge by providing means whereby it is either fixed or resiliently loaded relative to the cylinder. For circumferential adjustment of the plate the bar 17 of Fig. 1 and the bar 251 of Fig. 5, are movable laterally within the housing 10, 210 of the gripper mechanism.
Patent GB-1531810-A (GB)
Title: Process for regulating the input of oxygen in the treatment of effluent
IPC: C02F3/00
Filed: 1976-08-11
Abstract: 1531810 Regulating the input of oxygen in the treatment of effluent BAYER AG 11 Aug 1976 [12 Aug 1975] 33367/76 Heading C1C In a process for the treatment of effluent containing biochemically oxidizable constituents in the presence of activated sludge, wherein gas containing at least 20% by volume of O 2 , is introduced in fine dispersion with intensive mixing into the activated sludge containing effluent in at least one gassing zone, the input of oxygen is regulated by (a) introducing commercially pure oxygen into the gaseous phase above the effluent in such a quantity that the oxygen content of the gaseous phase deviates by at most  10% from a predetermined nominal value; (b) introducing a component volume of the gaseous phase adjusted according to step (a) in the form of a fine dispersion into the effluent containing activated sludge; and (c) introducing commercially pure oxygen directly into the component volume of the gaseous phase adjusted according to step (a) to maintain an oxygen content deviating by not more than  60% from a predetermined nominal value in the effluent containing activated sludge.
Patent GB-466721-A (GB)
Title: Improvements in or relating to the manufacture of sulphuric acid
IPC: C01B17/79
Filed: 1935-12-02
Abstract: A mixture of the sulphates of magnesium, aluminium, and iron is used as a support for a platinum catalyst in sulphuric acid manufacture. The magnesium sulphate should predominate and may comprise 75 per cent of the mixture.
Patent GB-905072-A (GB)
Title: A process for the production of polycarbonate filamentary materials
IPC: B29C48/395
Filed: 1960-09-29
Abstract: <PICT:0905072/IV(a)/1> Polycarbonate filamentary materials are made by melt-spinning from a melt-extruding worm press, at temperatures above the softening range of the polycarbonate and below 300 DEG  C., with a residence time in the worm press of less than 40 secs., the polycarbonate having such a low water content that the degradation on heating a specimen to 300 DEG C. for 1 min. is less than 1%. Specified polycarbonates include those derived from 2,2-di-(4-hydroxy phenyl)-propane, 1, 1-di(4-hydroxy-phenyl)-ethane or 1,1-di(4-hydroxy-phenol) butane. Apparatus as shown comprises a worm 3 rotating in a cylindrical sleeve 1, fitted with a cooling duct 2. The funnel-shaped intake chamber 4 is fed with raw material from supply pipe 5, and is enclosed by the cover 6 which accomodates the worm mounting 17. The clutch 15 connects the worm to driving motor 16.  The lower conical end of the worm runs in a conical recess 8 of the spinning pump unit 7 from which a passage 9 leads to a constant speed measuring pump 10, from which the melt flows through a passage 11 and via filter 13 to the nozzle plate 12.  The polycarbonate is heated to a melt by the frictional heat generated by the worm, but the pump unit is fitted with an electric heater 14 to avoid heat losses and hence viscosity changes.  Melt-uniformity is enhanced by utilising a driving motor the speed of rotation of which decreases with increasing torque, so that changes in melt-viscosity are automatically compensated by variation in the speed of the worm. After extrusion, the filaments or monofils may be stretched in conventional manner at temperatures above the setting temperature (130 DEG -140 DEG C., depending on the polycarbonate used) but below the softening range (150 DEG -230 DEG C. depending on the polycarbonate used) to draw ratios of up to 1:4.
Patent GB-1271977-A (GB)
Title: Semiconductor pressure-electric transducer
IPC: H01L29/84
Filed: 1969-07-04
Abstract: 1,271,977. Pressure-sensitive semi-conductor device. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 4 July, 1969 [19 July, 1968], No. 33792/69. Heading H1K. Pressure is applied to a rectifying contact of a semi-conductor body (doped with a deeplevel impurity) through a flat semi-conductor plate opposite in conductivity type to the body surface. The body may be of silicon doped with copper, gold, iron, cobalt or nickel. Alternative materials for the body are germanium, gallium arsenide, gallium phosphide, indium arsenide, or cadmium selenide (each doped with a deeplevel impurity). The plate may be of silicon or of germanium, gallium phosphide, indium arsenide, or cadmium sulphide. Though only one contact need be rectifying for D.C. operation, two rectifying contacts are necessary for A.C. use.
Patent GB-1063277-A (GB)
Title: Laminated article
IPC: C08F8/48
Filed: 1965-08-09
Abstract: A laminate comprising a lamina of a polymer of an alkene-1 having not more than 8 carbon atoms per molecule and an adjacent lamina of a hydrogenated block copolymer having prior to hydrogenation the general formula A-B-A where A is a non-elastomeric polyvinylarene, polyvinyl heterocyclic or a cyclised polymer block of a hydrocarbyl substituted conjugated diene, having a molecular weight in the range 4,000 to 115,000 and B is an elastomeric polymer block of a conjugated diene having a molecular weight in the range 20,000 to 450,000, the unsaturation not exceeding 50% of the unsaturation of the unhydrogenated polymer is made by applying a latex or cement of the hydrogenated copolymer to the polyalkene and removing the vehicle.  Specified polyalkenes are the homo- and copolymers of ethylene and propylene, which may be admixed with other hydrocarbon polymers e.g. hydrogenated polymers of styrene, isoprene or butatiene. Specified block co-polymers are those where B is polyisoprene and the end blocks are homo-or co-polymers of styrene, methyl-styrene, vinyl xylene, ethyl vinyl xylene, stilbene, vinyl cyclobutene, vinyl cyclopentene or vinyl naphthalene.  Fillers e.g. carbon black, titanium dioxide or asbestos fibres may be incorporated in either layer.  The example discloses the application of a solution in toluene of a polystyrenepolyisoprenepolystyrene copolymer to polypropylene, the toluene being evaporated and the resultant layers bonded under heat and pressure.
Patent GB-204248-A (GB)
Title: An improved method in the manufacture of articles of a material capable of being cast and articles manufactured in accordance therewith
IPC: B29C37/00
Filed: 1922-12-13
Abstract: 204,248. Marks, E. C. R., (Skandinaviska Gummiaktiebolaget). Dec. 13, 1922. Ornamental metalwork.-Soft metal articles are moulded with fabric-like impressions on the surface,. Ebonite moulds used for the purpose are formed by vulcanizing a rubber mass, in the surface of which the fabric pattern is embedded; the fabric being destroyed after vulcanization.
Patent GB-470548-A (GB)
Title: Improvements in driving gear for manual or pedal operation
IPC: B62M1/00
Filed: 1936-12-12
Abstract: 470,548. Cycle driving-transmissions and brakes. PRYM GES., W. Dec. 12, 1936, No. 34195. Convention date, Nov. 13. [Classes 136 (i) and 136 (ii)] [Also in Groups XXIV and XXX] A manual or pedal-operated gear for driving a bicycle wheel k comprises a friction wheel i' rigidly mounted on a shaft g, to which is secured a pinion h engaging a pinion e fast on the crank shaft b. The shaft g is mounted in a housing f freely pivoted about the shaft b, so that rotation of this shaft in the direction of the arrow n causes the wheel i<1> to be forced by the tooth-pressure of the engaging gears e, h into engagement with the driven wheel k On ceasing to pedal, or pedalling slightly backwards the wheel i<1> is disengaged. Engagement is limited by a stop-pin s, and movement in the disengaging direction by a pin .s<1>. The housing f may be connected by a pin u and slot to a rod t for operating a backpedalling brake v of the contracting band type, the crank shaft b being connected to the housing f by a free wheel. The wheel i<1> may be an expanding wheel engaging the tyre or rim and adjustable by linkwork, not shown, to produce an infinitely-variable drive.
Patent GB-1244428-A (GB)
Title: Pressure reducer, particularly for hydraulic brake systems in vehicles
Inventor: FRANZI RICCARDO
IPC: B60T11/34
Filed: 1969-07-08
Abstract: 1,244,428. Fluid pressure brakes; valves. FIAT S.p.A. 8 July, 1969 [12 July, 1968], No. 34313/69. Headings F2F and F2V. In a pressure reducer, particularly for hydraulic brake systems in motor vehicles, of the kind comprising a piston mounted for sliding movement in a cylinder 1 and having a pistonrod 5 of a diameter substantially smaller than the bore of the cylinder and projecting from the cylinder through an opening 6 in one end wall la thereof, said piston having a head 7 of a greater diameter than the rod and sub-dividing the interior of the cylinder into a high pressure chamber 15, defined between the cylinder wall and the piston-rod and connectible to a master cylinder, and a low pressure chamber 17 connectible to a braking circuit, a resilient packing 9 co-operating with the piston head and disposed in the high pressure chamber, and a reaction spring 11 accommodated in the high pressure chamber and biasing the piston towards one end of its stroke in the direction of the low pressure chamber, the spring in the low pressure chamber serves to hold in position an annular packing 14 which ensures fluid tightness of the passage of the piston-rod through the opening 6, the spring bearing at its end opposite said piston-rod packing against a radial projection 10 formed on a portion of the piston-rod near the piston head at a distance from the latter which is greater than the axial length of the piston head packing. As shown, the chambers 15, 17 are connected to a master cylinder and a brake line respectively, and the head 7 is encircled by an annular spacer 8 which, in a modification, is provided with a step-like annular groove in the surface thereof facing the cover 2, the piston being formed with a radial flange, the diameter of which is smaller than the internal diameter of the groove. The projection 10 may comprise a plurality of radially extending tongues.
Patent GB-891189-A (GB)
Title: Appliance for milling hinge mortises in casements, frames, doors and the like
IPC: B27F5/12
Filed: 1960-10-06
Abstract: 891,189. Woodworking. EMBERLAND, A. Oct. 6, 1960 [Oct. 10, 1959], No. 34324/60. Class 145. A device for forming spaced hinge recesses in doors and frames comprises a pair of rotary cutters 1, 2 adjustably mounted on a rod 16 and resting by means of roller bearings on a carriage consisting of two longitudinal rods 7, 8 and two transverse rods, 9 10, the latter resting on two pairs of rollers 11, 12 on the end members 13 of the frame of the device. A handle 14 moves the rod 16 and cutters longitudinally and the carriage transversely by means of links 21 and 15 respectively. Stops 19 and 37 limit the movements of the rod and carriage, respectively. Clamps 24 for the workpiece are hinged on a rod 23 and can be raised and lowered to vary the depth of cut by an eccentrically-mounted rod 25 having a handle 26; for deeper cuts, the cutters may be displaceable by means such as compressed air. The clamps are closed by electromagnetic devices or by pneumatic cylinders 32 which are controlled by movement of the carriage and are supplied from a tubular tank 29 welded to the end plates 13. For measuring the distance apart of the two cutters, a steel tape is attached to one cutter holder and wound in a housing in the other and the distance of a recess from one end of a workpiece is measured by a graduated rod attached to an end abutment 30.
Patent GB-823602-A (GB)
Title: Improvements in or relating to power-assisted steering for vehicles
IPC: B62D5/06
Filed: 1955-11-30
Abstract: 823,602. Vehicle power steering ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Nov. 30, 1955 [Dec. 10, 1954], No. 34343/55. Class 79(5) In a hydraulic power assisted steering mechanism controlled by the pivoting of a shaft 1 connected by a universal joint 7 to the steering shaft 8, the pivoting being caused by reaction between intermeshing gears 2, 3, a housing 12 subject to the return oil pressure from the servomotor contains a seal 11 encircling the shaft 8 exteriorly of the joint 7. As further shown the steering column 8 is mounted in the housing 12 by bearings 9, 10 and the shaft 1 carries the gear 2 meshing with the gear 3 on a worm shaft 4. The shaft 1 carries a member 5 controlling valves 14, 15 to actuate pistons 24, 25 to assist steering, the shaft 1 being engaged by a stop 6. In operation manual rotation of the column causes selective operation of the valves 14, 15, the gears 2, 3 causing the pivotal movement of the shaft 1 as permitted by the joint 7 and stoo 6 to actuate the member 5. The worm shaft 4 is engaged by a roller 16 which is rotatably mounted about an axis 18 on a steering lever 17 connected to a steering gear output shaft 19 and carrying on an arm 20 a roller 21 bearing against piston rods 22,23. Reference has been directed by the Comptroller to Specification 705,372 [Group XXIX].
Patent GB-428480-A (GB)
Title: Improvements in devices for preventing incorrect execution of orders received over an order telegraph
IPC: G08B9/06
Filed: 1933-12-06
Abstract: 428,480. Order - telegraph signalling- apparatus. FABER, J. A. C., 15, Banjoewangiweg, Batavia-Centrum, Java, Dutch East Indies. Dec. 6, 1933, No. 34348. Convention date, Oct. 24. [Class 118 (ii)] An order-telegraph apparatus locks the reversing shaft of the engine against movement in the incorrect direction. The reversing shaft 1 carries toothed segments 9, 10 which are normally just clear of teeth 7, 8 carried by the sleeve 4. The cog wheel 19 is rotated by the order telegraph and carries eccentric 18. As the eccentric is moved, it brings, by means of stops 13, 14 and springs 15, 16, the teeth 7, 9 or the teeth 8, 10 into engagement. These teeth lock the shaft 1 against rotation in the directions corresponding to ahead and astern respectively and so prevent the shaft 1 being rotated in a direction contrary to that indicated by the order telegraph.
Patent GB-1439840-A (GB)
Title: Heat-resistant honeycomb structure and method of producing the same
IPC: F28D19/04
Filed: 1973-07-19
Abstract: 1439840 Laminated ceramic cellular material NISSAN MOTOR CO Ltd 19 July 1973 [21 July 1972] 34360/73 Heading B5N [Also in Divisions B1 D2 F2 and F4] A heat-resistant honeycomb comprises a cylindrical assembly of corrugated layers 20 and interliners 22 of porous ceramic material, enclosed in a covering layer 26 of sintered or fused ceramic material of greater thickness than an interliner, the layer 26 having been formed by winding a strip of unsintered, unfused ceramic material around the cylindrical assembly and then sintering or fusing. The layers 20, 22 may be of sintered cordierite and the layer 26 may be porous or non-porous and may be of #- spodumene, which melts to become vitreous, or #-LiAl(SiO 3 ) 2 . The layers (20, 22) and 26 may alternatively be of the same ceramic material; the material for layer 26 may include metal oxide so that a fused layer is obtained at the sintering temperature of layers (20, 22). The layers may be formed from papermaking pulp containing 7-15 parts ceramics particles to 1 part pulp stock. The assembly (20, 22) may be formed by extrusion or by forming the pulp into single-face paperboard and either assembling concentric tubes or rolling. This assembly is baked to form sintered porous material. The layer 26 may be formed by wrapping a number of flat paperboard layers of the aforesaid type around the assembly (20, 22) before or after baking; in the former case, the honeycomb may be obtained in a single baking step. The honeycomb is used in gas turbine heatexchangers, gas flow rectifiers and, particularly, internal combustion engine exhaust systems as a catalyst support, in which case the pores of layers 20, 22 are filled with catalyst and the honeycomb is contained in a casing, having gas inlet and outlet ports and a shock-absorbing lining by means of internal welded flanges.