baber/WOPTO huggingface dataset:
Patent GB-866981-A (GB)
Title: Improvements in or relating to electric analogue circuits
Inventor: FRIEDERICHS KARL HEINZ
IPC: G06G7/57
Filed: 1957-07-05
Abstract: 866,981. Electric analogue computers. MONTAN-FORSCHUNG G.m.b.H. July.5, 1957, No. 21410/57. Class 37. An electric analogue for simulating the flow of fluids in ducts which can be generally represented by an equation of the form h = R.Qn (where h = head, Q quantity flowing and R = resistance to flow of gas in the duct, and n generally = 2) comprises a simulating and a reference circuit, each of which includes a variable resistor the wipers of which are adjusted by means of a servo control so that the currents or potentials in each circuit are maintained equal, a fixed compensatory resistance being connected in series with the variable resistor in the reference circuit. The electrical network can then be represented by the equation V = K, In where V = voltage inpressed on the simulating circuit, I is the current in this circuit and K (corresponding to R) depends mainly on the resistances included in the circuit. In the embodiment of Fig. 3, variable resistors A, C are included in the simulating and reference circuit respectively and their wipers rigidly coupled and moved by a servomotor (not shown) controlled by a differential relay having windings B 1 , B 2  (the sensitivity of response of which are equal) having resistances R B1 , R B2 . This circuit operates through the equalization of the currents I, I 1 . Terminals 1, 2 represent the end of the duct, and the reference circuit also includes the fixed compensatory resistance F, variable resistance D and the reference variable resistance C. If # is the proportion of A and C brought into circuit for current balance between the two circuits, and Jq is the current flowing through C and F then J q (F+#C) = J<SP>1</SP>(D+R B2 ) - (4). U is the potential difference between terminals 1 and 2 and U = J(#A+ R B1 ) - (6). When the system is in balance J = J 1  and from (4) and (6) AF Now R B1  can easily be made equal to - and C the equation is therefore reduced to V = KJ2 - (10) where K = A(D+R B2 )/Jq.C. An embodiment in which the potential differences are equalized is shown in Fig. 4, the terminals of the differential relay being in this case connected to terminals 3, 4, and a resistor M being included in the simulating circuit. When the system is in balance, the potential difference between terminals 3, 4 is zero, and J.M. = J<SP>1</SP>(F<SP>1</SP>+#C)-(12) and it can again be shown that U = K<SP>1</SP>J<SP>2</SP> where K<SP>1</SP> = M.A./J<SP>1</SP>C - (18). In order to simulate conditions in a duct at which n is not equal to 2, an additional variable resistor G is introduced into the reference circuit (Fig. 6).
Patent GB-1466193-A (GB)
Title: Hitch mechanisms
IPC: B62D53/08
Filed: 1974-05-15
Abstract: 1466193 Towing appliances; articulated vehicles C M WINTER 15 May 1974 [30 May 1973] 21435/74 Headings B7T and B7H A towing assembly enabling an automotive passenger vehicle 10 to tow a trailer 18 having a king pin 54 comprises a fifth wheel 50 pivotally mounted on a cantilever frame 56 supported on a main frame 22 which supports auxiliary road wheels 28 and which is provided with projection members 102 engaged with socket members 100 detachably fixed to chassis frame members 14 of the vehicle 10. As illustrated, the cantilever frame 56 is pivotally supported at hinges 88 to allow movement of the cantilever frame between an operative position (shown in full lines) and a non-operative position (shown in chain lines). The hinges 88 are carried by a pair of cap shells 74 removably mounted on side members 30 of the main frame 22. The cantilever frame 56 rests on abutment members 76 provided on the cap shells 74. The vertical height of the fifth wheel 50 may be adjusted by utilizing cap shells 74 having abutment members 76 inclined at different angles to the horizontal. The auxiliary road wheels 28 are mounted on a pivotal cranked axle 38 provided with coil springs (44), Fig. 2 (not shown), which resist upward movement of the wheels 28 relative to the main frame 22.
Patent GB-1480448-A (GB)
Title: Clock signal generating device with complementary mos transistors
IPC: G04G3/02
Filed: 1975-05-20
Abstract: 1480448 Electronic watches TOKYO SHIBAURA ELECTRIC CO Ltd 20 May 1975 [20 May 1974] 21439/75 Heading G3T [Also in Division G4] In order to reduce the current consumption in an integrated circuit comprising an oscillator and divider combination and using complementary MOSFET circuitry, the transistors formed at the high frequency end of the oscillator-divider chain have a lower threshold voltage than those at the low frequency end. When the oscillator operates at 4MHz for instance only the oscillator portion of the I.C. may use the low threshold voltage transistors but with higher frequencies, e.g. 14MHz, 250MHz, the first few stages of the divider also use them. The low threshold voltage transistors in the I.C. may be formed by ion implantation of boron in the channel region, by reducing the gate oxide film or by substituting a polycrystaline material such as silicon or molybdenum for the usual aluminium of the gate electrode. The I.C. is for use in a wrist watch and the divider circuit Fig. 4 (not shown) may be that of Specification 1413044.
Patent GB-1271410-A (GB)
Title: Container bottom closure
IPC: F27D3/00
Filed: 1969-04-28
Abstract: 1,271,410. Hoppers. BROWN, BOVERI & CO. Ltd. 28 April, 1969 [30 April, 1968], No. 21483/69. Heading B8S. [Also in Divisions F4 and E2] A container 10, for use in containing hot scrap metal, includes a bottom closure 16 having an upper or inside set of doors 18 and a lower or outside set of doors 20. Each set of doors may comprise either three or four flaps 22, the flaps being identical and sector shaped, with the centre of the arcuate side hinged to the lower end of the container at 24. The flaps of the upper set are staggered with respect to the. flaps of the lower set to prevent the scrap metal from scattering when the closure is opened. The flaps are closed by power ram units comprising pneumatic piston-cylinder assemblies 34 and a self-locking toggle linkage formed by two links 50 and 44.
Patent GB-1064511-A (GB)
Title: A process of de-asphalting waster paper stock
Inventor: LINGWOOD ROBERT NEVIL GARROD
IPC: D21C5/02
Filed: 1964-05-25
Abstract: Asphalt contaminants in waste paper are rendered harmless by pulping the paper, dissolving the contaminants by adding a hydrocarbon solvent at a temperature below its boiling point and in the presence of enough metallic hydroxide to give anH between 8.5 and 10.0, and then heating to 200 DEG F to evaporate enough solvent to deposit the contaminant as microscopic particles.  The solvent may be aliphatic and the hydroxide that of sodium or potassium.  A surface-active agent may also be present, examples are tall-oil fatty acid, sodium sulphonate or polyethylene glycol alkyl aryl ether.  The particles may be reprecipitated with alum.
Patent GB-380895-A (GB)
Title: Improvements in electric luminous discharge devices
IPC: H01J61/10
Filed: 1931-07-28
Abstract: 380,895. Arc - discharge devices. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, DAVIES, L. J., 147, Murray Road, and KNIGHT, H. DE B., 108, Eastlands Road, all in London. July 28, 1931, No. 21561. [Class 39 (i).] The arc discharge is confined within a tube 7, Fig. 1, one end of which is joined to an anode shield 6, the other end terminating adjacent a thermionic cathode 3. The tube 7 may be of quartz. In a modification, the shield 6, Fig. 2, is sealed to the envelope which is constricted at that portion lying between the tube 7 and the cathode. A heat shield 9 is provided for the cathode. Specification 268,046, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-699320-A (GB)
Title: Improvements in or relating to containers for transporting various materials, more particularly pulverulent materials
IPC: B65D6/04
Filed: 1951-09-13
Abstract: 699,320. Tip buckets. BONZOM, [nee MERLET], L. M. L. J. Sept. 13, 1951.' No. 21568/51. Class 78 (iv). A container having a neck has lateral swivel pins below the centre of gravity of the loaded container and offset laterally to the vertical line passing through the centre of gravity. As shown in Fig. 1, a container has eight sides 2 on a reinforced base, a neck 5 and a pourer on a base 22 with a slidable top opening. The container has side swivel pins or shafts projecting from either side or a central aperture through which a tube 21 may pass through the container below and offset from the centre of gravity so that when the container is suspended by its lateral projections it pivots to discharge under gravity. The container has an adjustable air hole and a handle 6 on either side. The pourer may be replaced by a lid hooked to a member which is bolted to secure.
Patent GB-1092536-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: HIBBERT JOHN
IPC: G21C9/04
Filed: 1964-05-25
Abstract: 1,092,536. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 11, 1965 [May 25, 1964], No. 21574/64. Heading G6C. In a gas-cooled reactor, the non-oxidizing coolant may, under fault conditions, be replaced by air and a fire initiated by oxidation of the graphite core, the fuel or fuel sheaths. This is prevented by the replacement of the coolant gas, by carbon dioxide, helium or nitrogen, when a fault occurs, so as to exclude air. The injection of the fire prevention gas into the reactor is effected automatically by the establishment of a negative pressure in the pressure vessel due to reactor cooling subsequent to the fault. A fire prevention gas heavier than air is used when injection into the core is through the upper surface and a lighter than air gas is used when injection is from below.
Patent GB-391765-A (GB)
Title: Improved method of compounding rubber
IPC: C08J3/215
Filed: 1931-07-30
Abstract: Plasticizing-agents are incorporated in rubber by emulsifying them, adding the emulsion to a dispersion of rubber, and coagulating.  By this means a larger proportion of softener can be incorporated than by milling.  According to an example, 120 parts of pine tar are emulsified in 120 parts of water and 4 parts of concentrated ammonium hydroxide.  This is added to 300 parts of 60 per cent latex with agitation.  Coagulation may be spontaneous or may be produced by the addition of a usual coagulant.  Other softeners specified are oleic and stearic acids.
Patent GB-576038-A (GB)
Title: Improvements in lubricating apparatus
IPC: F16N3/12
Filed: 1943-12-30
Abstract: 576,038. Lubricating apparatus; air compressors. TECALEMIT, Ltd., and LE CLAIR C. C. S. Dec. 30, 1943, No. 21872. [Classes 8 (i), 102 (i) and 102 (ii)] A lubricating pump comprises a high-pressure cylinder 7 fed from a low-pressure cylinder 1 by means of a low-pressure piston 2 moved by compressed air which is produced by a manually operated compressor the cylinder 16 of which is attached to cr formed integrally with an end cover 15 closing one end of the lowpressure cylinder, the other end of which carries the high-pressure cylinder containing the high-pressure piston 9 which is operated by a lever 10. The piston rod 18 of the compressor projects through a cover 22 screwed on to the rear end of the cylinder 16 and carries an operating knob 23 which is screwed into a sleeve 25 slidably mounted on the outside of the cylinder 16 and which is forced rearwardly by a spring 24. The front of the cylinder 16 carries a screwed-on cover 26 formed with air outlet holes 27 controlled by a flexible non- return disc valve 28 which is protected by a perforated cover 31. When not in use, a depression 33 in the knob 23 is engaged by a projection 34 on a stirrup 32 pivoted to the end cover 15. The latter may also carry a relief valve. Specification 219,004, [Class 102 (i)], is referred to.
Patent GB-477469-A (GB)
Title: An improved valve for use in pneumatic playing balls and means for securing said valve in the ball
IPC: F16K15/20
Filed: 1936-08-08
Abstract: 477,469. Inflating-valves. RANSFORD, A. J. (Goldsmith, H.) Aug. 8, 1936, No. 21903. [Class 135] [Also in Group XV] A valve for an inflatable playing ball comprises a resilient member having a solid stem a and a mushroom head or flange b, the head and stem having centrally therein a longitudinal knife cut e extending from a small cup at the projecting top c of the head to adjacent the bottom of the stem, its lower end joining a horizontal knife cut f to the outside of the stem and constricting means for making the valve leakproof comprising two resilient concentric bands g and h around the stem a, the end of the outer overlapping the lower end of the inner band. The flange b is secured to the cover l and the bladder by an adhesive k and, where the cover is provided with a fabric lining p, a disc q of roughened leather is put between the cover and the flange. The ball is inflated by means of a lubricated needle adaptor.
Patent GB-1204042-A (GB)
Title: Improvements in or relating to bayonet-fasteners
IPC: F16B7/20
Filed: 1968-05-09
Abstract: 1,204,042. Bayonet fastenings. ALBISWERK ZURICH A.G. 9 May, 1968 [13 July, 1967], No. 21931/68. Heading E2B. A bayonet fastener comprises a member with a slot engageable by a roller on each end of a pin projecting laterally from a second spring urged member. A member 7 securable in a rack frame 5 has a slot 9 in which engage rollers on the end of a pin transverse to an extension 6 of a handle spindle 16 passing through a cover plate 3 to secure the cover plate to the rack frame. To release the cover plate, the handle 1 is rotated and then pulled to detach the pins from the slot and to cause the extension and pin to pass through an opening in the frame and rest on the cover plate. The handle is pulled again to move the cover plate and make available an accessory therein. A resilient disc 2 between the handle I and coverplate 3 urges the handle outwardly and the rollers to engage in an arcuate portion at each end of the slot. Each roller has a frusto conical bore which fits rotatably on a tapering end of the pin.
Patent GB-722105-A (GB)
Title: Coal working apparatus
IPC: E21C27/18
Filed: 1951-09-18
Abstract: 722,105. Mineral-mining apparatus. DEMAC, AKT.-GES. Sept. 18, 1951 [Oct. 1, 1948], No. 21933/51. Class 68(1).  Mineral-mining apparatus comprises a plough and a kerf-cutting means mounted on a sloping platform connected to said plough. In a preferred embodiment the apparatus is adapted to cut in either direction of travel along a face and comprises two ploughs 1, 2 pivotally connected at 11  to a sloping platform 7 on which is mounted the kerf-cutting means 5. The kerf-cutting means may have one or more straight or bent cutter jibs 6, 12 about which circulate pick-carrying chains. The lower jib 6 extends into the face parallel to the floor and conveys the cuttings up over the inclined platform to eject them into a face conveyer 10. Various other arrangements of jibs and other forms of kerf-cutting means may be used.
Patent GB-459194-A (GB)
Title: Improvements in or relating to machines or apparatus for drying and/or conditioning textile articles and fabrics
IPC: D06B1/00
Filed: 1935-08-02
Abstract: 459,194. Drying &c. textiles. HARE, W., 29, Winton Avenue, Leicester. Aug. 2, 1935, No. 22000. [Classes 34 (i) and 34 (ii)] Apparatus for drying and/or conditioning textile articles and fabrics, comprises a perforated drum rotatably mounted within a casing and adapted to contain the articles to be treated, means being provided to supply air, hot or cold, substantially in a transverse-diametrical direction through the drum. In the construction shown, a reticulated drum 1 of wire mesh containing the articles to be dried is rotatably mounted within a casing 9 formed with two openings for communication with the inlet and outlet ends of the casing of a fan 16. The fan is driven by an electric motor 17 and blows air through a heater 10 and through the drum 1. The moist air passing through the conduit 19 is dried by means of an endless band 27 of absorbent material which travels across the path of the air. The band is dried by means of steam or other means provided within the rollers 30 on which the band travels. Means are provided for maintaining the band under sufficient tension. A byepass conduit 22 is provided by means of which cool air may be circulated through the machine. The drum 1 is provided with agitating members 35, which lift up the articles during rotation of the drum. Reference has been directed by the Comptroller to Specifications 207,125, 240,621, 255,563, 336,357, [all in Class 34 (ii)], and 388,555.
Patent GB-513812-A (GB)
Title: Improvements in and relating to automatically re-closing switching arrangements
IPC: H01H75/06
Filed: 1938-07-25
Abstract: 513,812. Protective cut-out systems. AKT.- GES. BROWN, BOVERI, & CIE. July 25, 1938, No. 22003. Convention date, July 31, 1937. [Class 38 (v)] Relates to a switching arrangement for interrupting arc short-circuits by rapidly opening and immediately reclosing the circuit, thus reducing the number of interruptions in the supply, the switching arrangement comprising a power switch and disconnecting switch in series, which are normally manually opened, whereas on fault, only the power switch is opened. According to the invention, if the fault persists after at least one operating cycle of the power switch, both switching points are automatically opened to produce the final disconnection. A separate protective relay may be provided for each switching point, operation of the separating point being also dependent on the final opening of the power switch. Alternatively a single relay may control both points. When a fault occurs in the line a, the distance or other protective relay d closes and energizes, over contacts of a change-over relay h, the operating coil f of the power-switch b, which at once opens with the series-disconnecting switch c opening: The relay d then restores and the relay h changes over the connections from coil f to the coil g by means either of the relay d or of the switch b. The switch b recloses automatically after, say, 0.1 seconds, and if the fault is only transient, the relay h is restored to the position shown after a suitable time-delay. If, however, the relay d operates again owing to persistance of the fault, the coil g is energized and opens the line a permanently at the switches b, c, which are structurally interconnected to allow of this. Relay h is then returned to the position shown but may alternatively be timed to permit a succession of openings and reclosures of switch b before it changes over to coil g. A push-button k provides for manual opening of the combination b, c, and in reclosing after a complete fault disconnection or manual opening, circuit is finally made at c. The switch b preferably has arc-quenching means to ensure rapid interruption of the circuit, and a further disconnecting switch may be arranged in series with b, c.
Patent GB-700357-A (GB)
Title: Improvements in pouring lips for domestic utensils
IPC: A47J36/14
Filed: 1950-09-07
Abstract: 700,357. Hollow-ware. HOLROYD, H. W. Aug. 31, 1951 [Sept, 7, 1950], No. 22031/50. Class 66. A pouring lip for a container such as a saucepan, comprises a roll-over portion 1 such that the under surface of the lip is of concave form and the extremity of the lip at its mid-width is downwardly inclined at an angle B so that the forces of capillary attraction and gravity oppose one another and the probability of spilling and dripping is reduced. The angle B is preferably of the order of 2 degrees or 3 degrees up to 7 degrees although it may be as high as 20 degrees. The distance A by which the lip extends from the container should not be less than “ in. and is preferably between # in. and ¢ in. The lip extends for about 3in. around the circumference of the container which has a diameter of approximately 6in. and thus subtends an angle of about 55 degrees at the centre of the container.
Patent GB-822671-A (GB)
Title: Apparatus for aerating water
IPC: C02F3/12
Filed: 1957-07-11
Abstract: 822,671. Aerating water. SULZER FRERES S. A. July 11, 1957 [Oct. 23, 1956], No. 22077 /57. Class 46. Apparatus for aerating water, for the purpose of preventing damage to the materials of water supply installations, comprises an air outlet device disposed in the interior of the water supply pipe leading to the water supply installation, the wetted surface of the pipe in the neighbourhood of the air outlet device consisting of a material not susceptible to attack by water. The air outlet device may consist of one or more porous diffuser candles filter cloths, screens, porous plates, nozzles, perforated boxes, or double cylinders (the cavities of which latter are filleed with shavings or wool of rust-proof material). In the Figure water supply pipe 2, which communicates with the ground water and leads into tank 1, is made of corrosion-proof or erosion-proof metallic material or of stoneware, or at least that part of its surface which comes into contact with the water is coated with a material e.g. synthetic resin not susceptible to attack by water. Air outlet device 12 comprises a holder, carrying porous diffuser candles 13, and adapted to be withdrawn from the water by means of rod or cable 14. A plurality of such air outlet devices 12 may be employed, each connected by an air supply pipe 11, distributer 9 and pipe 7 to an air-delivering machine 3, which may be a compressor. Pipe 7 is provided with a water separator 8. Pumps 15, with driving shafts 19, draw off the aerated water from tank 1 and pump it through pipes such as 17 to consumer points. Some of the water is bled off through pipe 20 to supply cooling water for machine 3.
Patent GB-475406-A (GB)
Title: Improvements in a method and apparatus for producing fibres from a viscous substancesuch as glass
IPC: C03B37/022
Filed: 1937-01-18
Abstract: 475,406. Making glass wool and slagwool. EDWARDS, A. E. (Naamlooze Vennootschap Maatschappij tot Beheer en Exploitatie van Octrooien) Jan. 18, 1937, No. 22191. Divided out of 475,384, under which a Specification was laid open to inspection under Sect. 91 of the Acts, July 19, 1937. [Class 56] [Also in Group V] Relates to a method of making fibres from viscous material, particularly glass, in which a stream of molten material is drawn into fine fibres 9 by a blast of gas from blowers 4 that envelops the stream, as described in Specification 428,720. According to the present invention, the gaseous stream and the fibres carried by it are forced to follow a curved or sinuous path, while the fib:res are still in a plastic condition, in order to impart curl or waviness to the fibres. For this purpose, the gaseous stream and the fibres pass between two sets of guide or baffle plates 5 disposed on opposite sides of the stream. The position of the baffles may be adjusted by means of racks 6 and pinions 7 or other suitable means.
Patent GB-442024-A (GB)
Title: Manufacture of oxyalkylated (ª‰, ª†-dioxypropyl)-aminobenzenes and the correspondingª†-alkyl ethers
Filed: 1934-07-30
Abstract: Oxyalkylated (b  - g  - dioxypropyl) - amino-benzenes or the corresponding g -alkyl ethers are manufactured by causing a (b -g -dioxypropyl)-aminobenzene or a (g -alkoxy-b -oxypropyl)-aminobenzene to react at a raised temperature and under pressure with an alkylene oxide, other than ethylene oxide, or a technical mixture of such alkylene oxides. In examples: (1) 1-methyl-3-(b -g -dioxypropylamino)-benzene is reacted with a technical mixture of 1 : 2- and 1 : 3-propylene oxide to produce 1 - methyl - 3 - (b -g -dioxypropyl-oxypropylamino)-benzene; (2) (g -methoxy-b -oxypropylamino)-benzene is reacted with a technical mixture of butylene oxides, yielding oxybutyl - (g  - methoxy - b  - oxypropylamino)-benzene.