baber/WOPTO huggingface dataset:
Patent GB-1388948-A (GB)
Title: Mobile purifying plant for waste water
IPC: C02F1/52
Filed: 1972-04-26
Abstract: 1388948 Mobile or transportable waste water purifying plant GUSTAVSBERGS FABRIKER AB 26 April 1972 [29 April 1971] 19444/72 Heading C1C A transportable or mobile waste water purifying plant comprises a housing 5, biological aerating means 1 comprising rotating discs 7 in troughs 6, a mixer 2 in which biologically purified water is mixed with a precipitating or flocculating agent (e.g. Al 2 (SO 4 ) 3  to precipitate phosphate), and a separator 3 comprising inclined plates 17 for separating the solids from the water, which solids are collected in tank 4. In the embodiment shown, the plant is connected to cess-pit 21 from which waste water is pumped in a controlled manner to means 1 through pipe 8 and equalizing tank 9 from which excess water is returned to pit 21 and to recipient (not shown), by pipe 20. The pit 21 has liquid level sensors 26, 27 for controlling the operation of pump 24 and liquid level sensor 28 is connected to an alarm device. Pit 21 is provided with overflow 29. The housing may have heat insulated walls and may be provided with a heater and ventilation openings. Two or more of the plants may be connected in parallel.
Patent GB-759101-A (GB)
Title: Bobby pin
Inventor: ARDOLINO LEWIS ROBERT
IPC: A45D8/14
Filed: 1954-07-05
Abstract: 759,101. Hair pins ; clips. FREDA, C. A. July 5, 1954, No. 19659/54. Class 131. A hair pin comprises a U-shape body of spring material having contiguous, superposed legs of equal length, one of which is undulated and the other flat, and a finger grip portion projecting outwardly from one side of each leg, the finger grip portions being opposite each other and movable towards each other to spread the legs. As shown, the legs 12, 14 of the pin 10 have lateral bulges 20, 22 which are approximated by finger pressure to open the pin to receive a tress of hair, the leg 14 having hair-gripping undulations 18. In a modification the bulges are replaced by laterally extending plates. Specification 708,594 is referred to.
Patent GB-201748-A (GB)
Title: An improved device for opening and closing electric circuits, or contacts
IPC: H01H29/10
Filed: 1922-07-18
Abstract: 201,748. Scott, W. H., and Wyatt, A. July 18, 1922. Mercury switches; actuating; retarding devices; contacts.-A mercury switch comprises a container which is inserted to make and break circuit by means of the mercury flowing from one compartment to the other of the container. As shown in Fig. 2, the container A is divided into compartments a<1>, a<2> by a part a<3> having therein an orifice a<4>, which is controlled by a valve C provided with guides c and an orifice c<2>. When the container is inserted, the mercury flows through the orifice a<4> and rapidly makes circuit between an adjustable contact B and a second contact, which may be the container body or a separate contact. On restoring the receptacle A to its original position, the valve closes the orifice a<4> and the mercury, flowing through the crifice c<2>, opens the circuit after a lapse of time. The container is mounted on a spindle g and rotated by means of a pivoted lever J. One lead d<2> is run from the terminal e round a roller f to the contact B, and the other d' is connected to the container, or separate contact, through the spindle g and a plate h. If desired, contacts may be disposed in both compartments.
Patent GB-1056149-A (GB)
Title: Oscillatory motors or pumps
IPC: F15B15/12
Filed: 1964-05-12
Abstract: 1,056,149. Semi-rotary hydraulic actuators. H. STEINBACH and W. HEYNEN. May 12, 1964 [June 28, 1963], No. 19724/64. Heading F1F. In a semi-rotary hydraulic actuator comprising an abutment 8 and piston 5, Fig. 1, secured by shear pins 6 to a cylinder 1 closed at its ends by end-plates and a coaxial shaft 4 respectively, the abutment and piston are made as elongated prisms with semi-circular ends with sealing rings 7 thereabout positioned so that the distance between the rings adjacent the supporting surface to which. the abutment or piston is attached is greater than the distance between the rings adjacent the surface over which the abutment or piston slide. This produces a thrust surface 11, Fig.4, for the piston 5 and 11, Fig. 5 (not shown), for the abutment 8, on which the hydraulic pressures within the actuator act at an angle 13 which is acute with respect to the tangential plane at the centre of the supporting surface. The hydraulic pressure 14 normal to these surfaces is resolved into two components 16, 15. The component 16 producing a shear force on the pin 24 together with a tilting moment on the piston about the point 18 in the case of the piston and a shear force on the bolt 23 together with a tilting moment about the point 21 for the abutment. In each case, the tilting moment is opposed by a tilting moment due to the component 15. The dimensions of the piston and abutment and the spacing of the rings 7 is arranged so that the tilting moment from the component 15 at least cancels the tilting moment from the component 16 and thus removes any tendency of the piston or abutment to lift away from its supporting surface so as not to produce tensile stresses in the pins or bolts. The bolt 23 may be a pin inserted in a blind hole in the cylinder 1. The hydraulic pressure 14 also acts on the sealing ring, to deform the ring so that it sealingly engages the recess in which it is fitted and the surface over which it slides. Instead of the shear pins and bolts recesses in the supporting surfaces may engage feathers on the piston and abutment.
Patent GB-256966-A (GB)
Title: Underground conduits
IPC: H02G9/06
Filed: 1926-08-11
Abstract: 256,966. Gest, G. M. Aug. 11, 1925, [Convention date]. Laying and supporting pipes and tubes. - An underground conduit construction comprises ducts or pipes passing through holes in supporting and spacing blocks rigidly connected together by bridging- slabs acting as sheltering-supports for the ducts. The pipes 4 may be made of indurated fibre and their ends may fit into sleeves 5 in the blocks 2. Planks or concrete slabs 3 may be placed beneath the blocks 2. The bridging-slabs 7 may rest on the pipes 4, with their lower faces shaped to fit between them. They may be secured on the blocks 2 by pins 8, and may be shaped to engage with the lateral walls of the blocks. The blocks may be made from two layers of wood, the grain of one layer crossing that of the other. They may also be of concrete cast in place or made separately. They may be. cast in one with the upper or lower slab. Wooden or metal supports may hold the pipes in place while the blocks are cast in position. Separately-made blocks may be in one, two, or more pieces. Blocks for each tier of pipes may be provided, each block being divided through the centres of the holes. The space between the pipes is finally filled with loose sand, earth, &c.
Patent GB-856675-A (GB)
Title: Improvements relating to hand tools and handles thereof
Inventor: BEARD ALBERT
IPC: B25G1/00
Filed: 1958-06-20
Abstract: 856,675. Tool handle fixings. SIMMONDS AEROCESSORIES Ltd. June 15, 1959 [June 20, 1958], No. 19816/58. Class 61. A handle 1, Fig. 1 for a tool E1 such as a file made of sheet metal having a tubular or channel section, comprises an annular element 13 within which the cord of the tool is inserted and an inner member 12 which is caused to clamp the end of the tool against the inside face of the annular element 13. The member 13 may be of rubber which is compressed by a nut 13 held against rotation by finger 17 engaging a groove 7 in the element 13 and tightened by rotation of a threaded rod 4 secured in the handle 1. In modification (not shown) the rod 4 may be threaded in the handle 1 and have a bead engaging the rubber member 12. Alternatively the rod 4 projects through the handle 1 and has a recessed head for rotation by a screw-driver. Specification 695,830 is referred to.
Patent GB-1004567-A (GB)
Title: Method of producing aluminium diffusion layers on high temperature metallic materials
Inventor: BUNGARDT KARL
IPC: C23C10/48
Filed: 1962-05-23
Abstract: High temperature corrosion resistant alloys such as those containing by weight:  <TABS:1004567/C6-C7/1> are aluminized by diffusion to form a diffusion zone not more than 0.05 mm. in depth, said zone containing 2-15% of aluminium.  Pack diffusion is carried out at above 1000  DEG C. in a mixture containing Al2O3 and 5-15% Al. Alternatively aluminium halide vapour is generated from a mixture of Al2O3, and 30% Al and 0.3% NH4Cl, the vapour being passed over the alloy at the diffusion temperature.  Specification 1,004,566 is referred to.
Patent GB-736314-A (GB)
Title: Improvements in the production of ethylene oxide
IPC: B01J23/66
Filed: 1952-08-08
Abstract: Ethylene oxide is produced by catalytic oxidation of ethylene or ethylene-containing gases with oxygen or gases containing oxygen at elevated temperature using catalysts which contain silver on a carrier consisting of graphite entirely free from oil. Suitable activators such as heavy metals, noble metals, siliceous compounds or oxygen containing compounds of alkali or alkaline earth metals may be added to the silver.  The process may be operated at temperatures of 200-350 DEG  C., preferably at 240-260 DEG  C. and at atmospheric or increased pressure.  The ethylene oxide may be recovered from the reaction gases by washing out or adsorption and the remaining gases may be recycled.  The silver may be applied to the graphite as the metal, or as silver oxide or a silver salt solution which is subsequently reduced (see Group III) and the preferred silver content is 5-500 kg. per cubic metre of catalyst.  In examples, (1) and (2) ethylene is oxidized by a single passage with air at 230 DEG  C. and atmospheric pressure through a steel tube containing the catalyst; (3) a mixture of ethylene, oxygen and nitrogen is passed through a steel tube containing catalyst at 254 DEG  C. and 10 atm. pressure, superheated water being used to withdraw heat of reaction; (4) the same conditions as in (3) are used in a cyclic process.ALSO:A catalyst, for use in the oxidation of ethylene with oxygen, contains silver on a carrier consisting of graphite which is entirely free from oil.  Suitable activators such as heavy metals, noble metals, siliceous compounds or oxygen-containing compounds of alkali or alkaline earth metals may be added to the silver. The preferred silver content is 5-500 kg. per cubic metre of catalyst.  The catalyst may be prepared by spraying or vaporizing metallic silver onto the graphite or by impregnating the graphite with a silver salt solution followed by reduction with, for example, ethylene. Preferably the graphite is intimately mixed with moist silver oxide, the mixture is dried and then reduced with, for example, hydrogen, at temperature between 100 DEG  and 350 DEG  C.  To obtain high silver concentrations it is preferable to carry out the mixing and drying operations in a number of stages to give a more uniform distribution of silver.  This latter method is illustrated in example (1).
Patent GB-1512843-A (GB)
Title: Bleaching
IPC: A23B4/24
Filed: 1975-05-13
Abstract: 1512843 Alkaline bleaching of fish INTEROX CHEMICALS Ltd 26 April 1976 [13 May 1975 9 Feb 1976] 05031/76 and 20031/75 Heading A2E Dark fish meat is bleached by contacting in undissolved state with aqueous solution containing up to 5 wt. % H 2 O 2  at an initial pH of 10.5-11.5, removing residual H 2 O 2  from the bleached fish and adjusting the pH to neutral or below, e.g. 6-7. The pH may be obtained by means of Na 2 CO 3 , NaOH or Ca(OH) 2  and may be maintained constant or allowed to fall during the contact H 2 O 2  and Na 2 CO 3  may be obtained in situ by decomposition of sodium percarbonate. Treatment may be carried out at up to 100‹C, e.g. 10-30‹C, with a fish : solution weight ratio of 1:3-1:30, and the solution may contain 0.5-5 wt. % H 2 O 2 , 0.1-10 wt. % polyphosphate, e.g. Na tripolyphosphate, and peroxosulphate. Residual H 2 O 2  may be removed by water washing, compression or rapid heating or by treatment with a solution of catalase at pH 7.5-8.0, L-ascorbic acid or Na 2 SO 3 . The pH may be adjusted by acetic, citric, L- ascorbic or malic acid. The fish may be blue whiting, coley or inferior cod meat in flaked, shredded or macerated form.
Patent GB-238545-A (GB)
Title: Improvements in or relating to electrical insulating devices
IPC: H01B17/28
Filed: 1925-08-10
Abstract: 238,545. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Smith, H. B.). Aug. 14, 1924, [Convention date]. Transformers.-In insusulating devices, in which a conductor passes through an insulated partition con. nected to a conducting body, such as a transformer casing and in which conducting surfaces are arranged, as described in Specification 195,593, to distribute the lines of force so as to diminish the prob. ability of a break-down, the conducting surfaces are connected to the conductor and to the conducting body carrying the partition and are so arranged adjacent to the partition that the lines of force follow the surface of the partition. In the arrangement shown in Fig. 1 the insulating partition 5 forms the cover of a transformer-casing 1. The conductor 14 is a tube enclosing the transformer lead 12 and terminating in electrostatic-stressdistributing members 15, 16. A.nnular conducting members 9, 10, 17, 18 are arranged above and below the partition 5 and in connection with the casing 1 and the conductor 14 respectively. They are so shaped that the lines of force near the partition 5 are nearly parallel thereto and the shortest paths between the conductors 9 and 17 and 10 and 18 are some way from the partition 5. The distance between the members 9 and 17 may be less than that between the mewbers 10 and 18. The conductor 14 may be formed with a condensing bushing. Other surfaces may be arranged below the level of the oil in the casing so as to cause the lines of force within the casing to be nearly parallel to the surface of the oil therein. Specification 213,978 also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes an arrangement shown in Fig. 4 (Cancelled), in which the insulating partition 29 forms the upper part of the wall of its transformer casing and the conducting surfaces connected to the conductor 14 are formed by the cover 30 of the. casing and coact with the conducting surfaces 32, 34 carried by the wall of the casing. This subject-matter dces not appear in the Specification as accepted.
Patent GB-424808-A (GB)
Title: Method of applying a coating of powdered material to sand lined molds
IPC: B22D13/10
Filed: 1934-07-09
Abstract: 424,808. Mould materials. INTERNATIONAL DE LAVAUD MANUFACTURING CORPORATION, Ltd., 15, Exchange Place, Jersey City, New Jersey, U.S.A. July 9, 1934, No. 20086. Convention date, Jan. 10. Drawings to Specification. [Class 83 (i)] The sand or like lining of a centrifugal pipe mould is coated with dry powder before pouring the molten iron. The layer should be sufficient to submerge all projections of the sand lining, and may be applied by dry air, using the apparatus described in Specifications 423,613 and 423,614.
Patent GB-625379-A (GB)
Title: Improvements in electric discharge tube amplifiers
IPC: G01R19/00
Filed: 1947-07-25
Abstract: 625,379. Automatic voltage control systems. WESTERN ELECTRIC CO., Inc. July 25, 1947, No. 20137. Convention date, May 1, 1941. [Class 38 (iv)] [Also in Group XL (c)] Fluctuations in the output of a thermionic valve amplifier due to cathode drift are neutralized by separately amplifying the drift voltage and using the amplified voltage to reduce the output fluctuations. As shown, a voltage regulator comprises a two-stage amplifier deriving a voltage to control the voltage drop across a thermionic valve 40 in the +ve line. The grid of the amplifier section of double triode valve 31 is connected to a voltage divider 52, 51 across the regulator output, while the grid of the balancer section is connected to the +ve line through a high resistor 54 and to the negative line through a stabilizer valve 55 shunted by a high resistor 56. The output of valve 31 is fed to the grid of the balancer section of double triode 41 to increase the effect of fluctuations in the regulator output applied to the amplifier section of valve 41 by potential divider 63, 62. The output of valve 41 is also controlled by variations in the regulator input applied to the amplifier grid via resistance 65. The grid bias for the balancer section of valve 31 may be provided by a battery instead of the stabilizer valve 55 and resistors 54, 56.
Patent GB-184169-A (GB)
Title: Improvements in feed-cans
IPC: F16N3/06
Filed: 1922-07-22
Abstract: 184,169. Wagner, J. C. Aug. 4, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Cans; spouts.-A feed-can suitable for use in starting motor-car engines &c., has two or more compartments containing benzol, petrol, or other liquids, each compartment having a filling-orifice provided with a closure, the several compartments each communicating with a multiple-way cock leading to a spout. Two compartments c, c', are provided in the form illustrated; they can communicate by ways e, e<1> with the spout g according to the position of the tap f. To limit the movement of the tap it is fitted 'with a pin capable of free angular movement between a pair of grubscrews secured to the cock d.
Patent GB-1393704-A (GB)
Title: Distillation system for industrial drycleaning plant
IPC: B01D1/02
Filed: 1972-05-01
Abstract: 1393704 Control of distillation apparatus for solvent purification WASHEX MACHINERY CORP 1 May 1972 [21 May 1971] 20164/72 Heading BIB Contaminated dry-cleaning solvent is purified by boiling it in a still provided with steam-heated coils 14, 15 submerged beneath the solvent, the vapours rising through throat 21 to condenser 22 the upper part of which is connected to a temperature-sensor 37 which controls the supply of steam to coils 14 and 15 through line 17 to prevent vapour passing beyond the condenser. As shown, coils 14 and 15 are in series with a coil 16 which breaks the foam of the boiling solvent. Sensor 37 is coupled by electrical conductor 38a to a solenoid control for steam inlet valve 18 which is provided with a low volume bypass 18b. The condensate (i.e. purified solvent) flows through conduit 40, cooler 11 and dehumidifier 12 to storage tank 13. The condenser comprises two coils 23 and 24, the upper one being connected to cold water inlet line 25; the heated condenser water being discharged from line 26 on the lower coil. The still is vented through line 27. Contaminated solvent is supplied to the still through level control valve assembly 29. Accumulated sludge is discharged by pump 32. The still is provided with an illuminated observation window 34.
Patent GB-1118014-A (GB)
Title: Temperature compensated hydraulic spring
Inventor: BITTEL KARL
IPC: F16F5/00
Filed: 1966-05-06
Abstract: 1,118,014. Hydraulic springs. ZENTRALE ENTWICKLUNG UND KONSTRUKTION ZEK HYDRAULIK, VEB. 6 May, 1966, No. 20169/68. Heading F2S. Temperature compensation means for a plunger, not shown, and cylinder 1 type of hydraulic spring with an initial loading comprises an additional plunger 5 with a head 5a which is urged by a mechanical spring 9 in the spring compression direction and which has a rod which is movable, through seals, into and out of the cylinder according to the reduction or increase in pressure exerted by the hydraulic liquid due to decreases or increases in its working temperature. After a certain reduction of temperature of the liquid a stop 10 on the outer end of the piston rod 5 entrains a further plunger rod 3 which has a head 3a, both of the plungers then moving inwardly together under the action of the spring 9. This dual-plunger arrangement avoids the necessity of providing a large mechanical spring 9. The plunger head 5a provides two fluid chambers 6, 7 which communicate with each other through an annular throttle passage 8 between the head 5a and the cylinder 1, the throttle passage 8 protecting the spring 9 against dynamic shocks. The plunger rod 3 passes through seals in an end cap and a guide bush 2, the spring 9 bearing at its upper end against a stop surface 4.
Patent GB-202491-A (GB)
Abstract: 202,491. Bentall, E. E., and Bingham, G. C. July 24, 1922. Feeding-devices for granular and like materials.-The feed-hopper of a grinding and like mill having one side thereof extended to form a sack platform so arranged that the contents of a sack placed on the platform will gradually flow into the hopper, has the platform so hinged to the hopper and the support or supports at its outer end so arranged that the platform can be raised or lowered from its outer end. Figs. 1 and 2 show an extension d hinged at c to one side of the hopper a of a mill b and fitted at its outer end with two supporting legs e, e<1> which are hinged to the extension so that the leg e can be swung inwards and the leg e<1> outwards when it is desired to lower the platform. The leg e<1> may be used as a handle to raise the platform after a sack of material has been placed on it, the other leg e swinging into position when the platform has been raised and supporting the platform while the leg e<1> is lowered into position. In a modification, Fig. 4, the legs e are adapted to swing inwards under the platform d when the latter is lowered, and a handle f is provided for raising or lowering the platform.
Patent GB-148350-A (GB)
Title: Improvements in the vulcanisation of rubber
IPC: C08L7/00
Filed: 1920-07-09
Abstract: 148,350. Tilche, E. July 11, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Vulcanizing under direct gas pressure.-Indiarubber is vulcanized in an atmosphere of volatile alkali at atmospheric pressure. The alkali may be ammonia or a volatile organic alkali, and it may be diluted with an inert or reducing gas or a mixture of these, such as hydrosulphuric acid and carbonic acid. The addition of litharge is thus rendered unnecessary, and the colour of mixings preserved. The temperature of vulcanization may be about 145‹ C.
Patent GB-1043232-A (GB)
Title: Improved wired broadcasting systems and apparatus therefor
Inventor: GARGINI ERIC JOHN
IPC: H04N11/14
Filed: 1962-05-25
Abstract: 1,043,232. Television distribution systems. COMMUNICATIONS PATENTS Ltd. May 10, 1963 [May 25, 1962], No. 20278/62. Heading H4R. In a colour television distribution system over which a modulated carrier wave brightness information signal and a suppressed carrier wave colour information signal are transmitted, the frequency of one of the carrier waves is a whole number multiple of that of the other carrier wave whereby the picture produced with the aid of these signals is unaffected by beats between the carrier waves or their harmonics. As described, broadcast television transmissions in the 625-line N.T.S.C. colour television system are received in a receiver 9, the colour and brightness information signals being passed to a modulator 14 while the colour burst signal (viz. a signal which provides information regarding the suppressed carrier used for the colour signal) is used to control a local oscillator 16 which provides a signal having the same frequency as that of the suppressed carrier wave. The brightness signal is modulated on to the local carrier while the colour signal is transmitted as a double sideband suppressed carrier signal, the frequency of the suppressed carrier being twice that of the modulated carrier. These signals are transmitted over line pair 1 while a similar set of signals representative of another television transmission are transmitted over the pair 2. Either of these sets of signals can be selected at a receiver 3 or 5 (Fig. 3, not shown), where they are demodulated and applied, after suitable processing, to a television picture tube. The sound accompaniment of the picture is transmitted as audio frequency signals over the network.