baber/WOPTO huggingface dataset:
Patent GB-1422535-A (GB)
Title: Cryogenic apparatus
IPC: A61B18/02
Filed: 1972-06-16
Abstract: 1422535 Cryosurgical instrument SPEMBLY Ltd 12 June 1973 [16 June 1972] 28316/72 Heading A5R [Also in Division F4]  A cryosurgical instrument comprises a hollow body including a passage 10 for introducing a primary gaseous refrigerant at substantially its critical pressure, a passage 9 for introducing a secondary refrigerant at a temperature below the critical temperature of the primary refrigerant and a passage 3A to lead the primary fluid which is condensed by heat exchange to a hollow working lip 1B for evaporation and cooling. The probe 1A leads via an orifice 3B, into the hollow tip 1B of the probe 1A which has an outlet duct 12, and the heat exchanger has a first passage 34 communicating with the source of primary refrigerant and with the duct 3A and a second passage 23 adapted to receive the secondary refrigerant. The passages 12, 23, 34 are defined by thin gauge stainless steel tubes 1-4 rigidly sealed to one another in spaced relationship by interposed rings 5-7 of rectangualr cross-section brazed in position. The primary refrigerant is methane which is led in through a tube 10 at about 4.62 x 10<SP>6</SP> N/m<SP>2</SP> and escapes through a hole 8 in the ring 5 to atmosphere where it is oxidised or to a compressor for recycling. The secondary refrigerant is liquid nitrous oxide.
Patent GB-825769-A (GB)
Title: Improvements in and relating to endless belt conveyors
IPC: B65G21/00
Filed: 1956-09-17
Abstract: 825,769. Tubular-framed endless-belt conveyers. TOMKINS, H. E. Oct. 18, 1957 [Sept. 17, 1956], No. 28416/56. Class 78 (1). An endless belt conveyer 28 is mounted on tubular frame 26, the end rollers 11, 22 being mounted on respective tubular members 15, 24, secured as at 27, to said frame. Troughing rollers 32 (Fig. 3) and lower rollers 35 are secured to the frame 26 by clip 29. The frame carries driving motor 19 in box 17, the latter supporting feeding trough 61 (having rubber skirting 53) and discharge shoot 50 (Fig. 7) and being supported by swivel support 40 so that (Fig. 7) several such conveyers may be used in series. Additionally, two such tubular frames may be used; and the frame may be lengthened by a section " let into '' its length.
Patent GB-616930-A (GB)
Title: Improvements in or relating to core for forming holes in cast concrete or like slabsor components
IPC: B28B7/30
Filed: 1946-09-23
Abstract: 616,930. Cores for moulding concrete. JONES, W. L. Sept. 23, 1946, No. 28428. [Class 87 (ii)] A box-like core has its side or sides formed of a plurality of parts movable peripherally to take up contraction of the concrete on setting. Fig. 7 shows a section through a tapering core of square section consisting of four overlapping sheet-metal members 1, 2, 3, 4, each sheet being as long as the core and each having five walls, e.g. 11a, 11b, 12, 13, 14, inter-fitting to form a hollow prism at the centre of the core. Into this prism fits a rod 7 which is swaged over at one end to overlap the edges of the central prism and hence to provide a means of withdrawing the core. When the rod 7 is not in position the core may be collapsed, the sheets 1, 2, 3, 4 taking up the positions shown in Fig. 8. Rectangular, triangular and circular section cores may be built up in a similar manner.
Patent GB-221382-A (GB)
Title: Improvements in and connected with car couplings
IPC: B61G5/04
Filed: 1923-11-12
Abstract: 221,382. Jensen, C. A., (Buckeye Steel Castings Co.). Nov. 12, 1923. Couplings, automatic, convertible to non-automatic.-An automatic coupling 2 is provided on its underside with a link 4 pivoted. at one end 3 to the coupling and provided with an elongated slot 5, the upper wall of which is provided with a notch 6. A loop link 7 movable in the slot is adapted to engage a hook 1 of an opposing coupling, the links being shortened after engagement by the link 7 engaging in the notch 6.
Patent GB-489356-A (GB)
Title: Improvements in composite pads of cellulosic products
IPC: F01D15/02
Filed: 1936-10-20
Abstract: 489,356. Coating cellulosic webs; compound sheet materials. INTERNATIONAL CELLUCOTTON PRODUCTS CO. Oct. 20, 1936, No. 28522. Void. Convention date, Nov. 9, 1935. [Classes 96 and 140] A web W of thin, absorbent, felted, cellulosic material such as tissue paper is impreg. nated by means of a hollow, apertured roll 23 dipping in impreg. nating material in a container 20, the areas registering with the apertures 25 being left unimpregnated. Solutions or emulsions oi wax, paraffin, cellulose esters, protein such as glue or casein insolubilized with formaldehyde, rubber latex, natural or synthetic resins, rosin size, starch, glucose, or sodium silicate may be applied. One or more impregnated plies may be united to one or more unimpregnated plies, e.g. by local compression along criss-cross lines. The products may be used for towels, handkerchiefs, or diapers.
Patent GB-695303-A (GB)
Title: Improvements in or relating to the production of granular material from slurry
Inventor: BROWN ERIC HENRY IBBETSON
IPC: C05B19/00
Filed: 1950-11-22
Abstract: 695,303. Making granules from finely-divided material. WEST NORFOLK FARMERS' MANURE & CHEMICAL CO-OPERATIVE CO., Ltd. Nov. 14, 1951 [Nov. 22, 1950], No. 28569/50. Class 87 (ii). The material is made into a slurry, the slurry is allowed to fall as a curtain within a housing, and drops of the slurry are removed by rods rotating within the housing whilst finely-divided solids are fed into the housing. The slurry material may be phosphatic fertiliser with potassium and/or nitrogenous salt and other organic material, and the additional solids may be the same or different material. Fig. 3 shows a housing 10 within which rotate rods 16 carried by bars 15 supported by spacer plates 14 on a shaft 13. The slurry is fed into the housing by a belt 2 and the solids through a hopper 5. The hopper is at one end of the housing and the belt at the other end. The tips of the rods cut drops from the curtain of slurry and incorporate the solids with the drops. Paddles 18 on shaft 13 advance the material towards an outlet 12. Fig. 1 shows a flow sheet for the process. The slurry is fed to a mixer 1, reduced to a film on belt 2 by a roller 3 and passes into housing 10. Granules emerging from housing 10 fall on to screen 6, oversize granules passing to grinder 8 and then back to the screen, and smaller granules passing to dryer 7 and classifier 8. At 8' material of the desired size is collected as a product and fines are sent back to hopper 5.
Patent GB-364114-A (GB)
Title: Improved process for recording sound films
IPC: G11B7/00
Filed: 1930-09-24
Abstract: 364,114. Recording and reproducing sound. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Sept. 24, 1930, No. 28591. Convention date, Sept. 25, 1929. Drawings to Specification. [Class 40 (ii).] Relates to the recording of sound optically on a film by processes in which distortion is intentionally introduced, and subsequently compensated for during reproduction, in order to accommodate a large range of sound amplitudes within the limits of the media used, such distortion being of the kind in which, by means dependent on sound frequency, the larger amplitudes are recorded on a reduced scale. According to the invention, instead of using one and the same distorting device during the whole of the recording on a film, the individual sections of a film in which different frequency spectra predominate are recorded with different distorters, which are so designed that in whatever range'of frequencies the largest amplitudes occur these amplitudes are recorded on a reduced scale. Similarly, a number of different compensating or " de-distorting " devices suited to the record are used in reproducing the sound. The frequency characteristics of the de-distorters may be altered by hand or automatically. The automatic control of the de-distorting devices may be effected by contacts on the sound film or on a picture film associated therewith, or by means of a clock &c. Graphs are given to explain the principle of the invention. Specifications 248,148, 323,014, and 324,027, [all in Class 40 (ii), Phonographs &c.], are referred to.
Patent GB-158730-A (GB)
Title: Improvements in and relating to electric transformers and the like
IPC: H01F27/02
Filed: 1919-11-18
Abstract: 158,730. British Thomson - Houston Co., Ltd., (General Electric Co.). Nov. 18, 1919. Transformers.-A casing for a transformer comprises a trough or channel portion 15 to receive the core 11 and a belled-out portion 16 following the contour of the windings, the core being held in place by detachable U-shaped members 25 which fit into the sides of the channel portion above the core and form a flush surface with the surface of the adjoining wall of the belled-out portion. The members 25 form compartments for leads, and in the arrangement shown one compartment 19 receives the leads 28 of the primary winding and the other compartment 20 receives leads 29 brought from the middle portion of the secondary winding 13 for connection to a milliameter. The apparatus shown is designed for use with a R÷ntgen-ray tube T, the main leads of the secondary winding being connected to spark-gap electrodes 30 on the cover 31 cf the casing.
Patent GB-239741-A (GB)
Title: Improvements in and relating to devices for protecting electrical circuits from overheating
IPC: H01H85/46
Filed: 1924-12-01
Abstract: 239,741. Calor Elektrizitõts-Ges., and Dreyer, O. Dec. 1, 1924. Electrostatic meters. -In order to indicate when main and small fuses have blown, an electrostatic device is located in a part of the fuse casing or at a distance. It consists of a semi-conductor 29, for example slate of curved form as shown, with a metal electrode 31 in contact with it and a movable vane 30 of thin spring metal or paper which constitutes the other electrode. The electrodes are connected across the fuses and. when the voltage across them in. creases on rupture, the vane bends over so as to be visible through an opening 34.
Patent GB-1450290-A (GB)
Title: Flat blade trimming shears
Inventor: SCHIFFERS JOSEF
IPC: B23D31/02
Filed: 1974-06-28
Abstract: 1450290 Shearing SCHLOEMANN-SIEMAG AG 28 June 1974 [28 June 1973] 28766/74 Heading B3W In a shear for trimming rolled plates means are provided for adjusting the cutting clearance between both the trimming blades 2, 3 and scrap shearing cross-blades 11, 12 to suit different plate thicknesses. As shown, the blade 12 is fixed to the movable blade 3 and the blade 11 can be lowered independently of the blade 2 by an hydraulic cylinder (21), Fig. 2 via a toggle link 16-18 to prevent the trimmed strip 23 from fouling the blade 11 as the plate 22 is advanced. Alternatively the blade 11 is fixed and the strip is raised by a resiliently mounted member during the return stroke of the blade 3. The blades 3 and 12 are mounted on a beam 4 which carries trunnions 9 journalled in blocks 10 each slidable in a respective housing 24<SP>1</SP>, Fig. 3. The housing is vertically movable between guides 26 and 27 fixed to the shear frame 1 by a motor 30 via worm gears 29 and transmission rods 28. One wall 24 of the housing is wedge shaped and a wedge 25 is adjustably secured to the other wall. Each housing 24<SP>1</SP> has an inclined face (31), Fig. 5, not shown, which engages a wedge 33 disposed at right angles to the wedges 24, 25 so that vertical adjustment of the housings varies the cutting clearance between the blades 2 and 3 and between the blades 11 and 12. The wedge 33 is also vertically adjustable.
Patent GB-462841-A (GB)
Title: Improvements in card clothing for the flat stripping and brushing rollers of cardingengines
IPC: D01G15/84
Filed: 1935-10-17
Abstract: 462,841. Card clothing. GRAF, W., and GRAF, E. Oct. 17, 1935, No. 28767. Convention date, Oct. 19, 1934. [Classes 120 (i) and 120 (iii)] Card clothing for flat stripping, burnishing, or brushing rollers comprises a foundation a provided in the peripheral direction of the roller with groups of wires with bent teeth b and groups of straight teeth c of considerably longer wire, the groups being separated by intervals d.
Patent GB-1473877-A (GB)
Title: Protected electroluminescent diode
IPC: H01L27/00
Filed: 1974-06-28
Abstract: 1473877 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 June 1974 [3 July 1973] 28825/74 Heading H1K An electroluminescent diode 60, 61 is protected against forward overvoltage by a further diode 67, 68 which has a higher admittance at least for all supply voltages in excess of that at which the e.l. diode attains its maximum power of emission. The potential difference of the P-N junction 67, 68 is larger than the voltage corresponding to the minimum energy of the radiation recombination junctions in the e.l. diode 60, 61. In one embodiment, as shown, a plate 62 of N + type material receives an epitaxial N type layer 60 and a P type layer 61. The protection diode is formed by diffusing a P type region 67 into the plate 62. One electrode 66 is common to the diodes. A further diode is provided which includes a Schottky barrier 62, 63 which sets a threshold voltage for light or IR emission from the e.l. diode. In another arrangement, an array of e.l. diodes and protection diodes are formed on a substrate of GaP, the diode electrodes on one side being connected by a conductive strip (48) (Fig. 4, not shown). The e.l. diodes are formed on an epitaxial layer of GaAsP with impurities of Se, S or Te. N 2  or O 2  dopants are used as radiation recombination centres. The diodes in other arrangements may be of GaAlAs with dopants including Zn, and Al.
Patent GB-429093-A (GB)
Title: Method and apparatus for the selective separation of liquids from other commingled liquids, suspensions, sludges, dispersions and the like
IPC: C10M175/00
Filed: 1933-10-18
Abstract: 429,093. Filters. DAVIE, P., 17, Battery Place, New York, U.S.A.-(Assignee of Cammen, L.; 29, West 39th Street, New York, U.S.A.) Oct. 18, 1933, No. 28876. Convention date, Oct. 18, 1932. [Class 46] The components of a mixture of liquids having different surface tensions e.g. lubricating oil and water, are separated by bringing the mixture under suitable pressure into contact with a body having a large number of passages therethrough the greatest dimension of each of the passages normal to the direction of flow being less than 20 one-thousandths of an inch and the length being not less than four times as great, so thai the liquid with lower surface tension passes through and the other liquid is retained. The Figure shows apparatus for separating water and other impurities from the circulating oil of an automobile. The cylinder 15 is formed by winding helically a metal ribbon having fine grooves on one surface so that passages with the dimensional limits stated above are formed between adjacent turns of the coil. The ribbon is clamped by pins 29 and one end of the cylinder closed by a plate 22. The casing 16 has a connection 18 for inlet of the liquid mixture and a connection 17 for outlet of the oil, with a byepass fitted with a spring-controlled valve 21. Water and other impurities separated from the oil collect in a chamber 20 having a drainage plug 28. The passages in the cylinder 15 can be cleared by a reverse flow of air under pressure supplied through a valve 27.
Patent GB-349881-A (GB)
Title: Improvements in fuses
IPC: H01H85/42
Filed: 1930-09-26
Abstract: 349,881. Fusible cut-outs. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Sandin, J. ; 349, Avenue A, Forest Hills, Pennsylvania, U.S.A.) Sept. 26, 1930, No. 28890. Convention date, Sept. 26, 1929. [Class 38 (i).] In an expulsion type fuse the fusible element 14 is mounted in an insulating tube 13 of combustible material which, when heated, gives off a non-metallic un-ionized gas and having walls of such strength as to withstand without rupture the pressure of arc gases under low current overload conditions, but to rupture when subjected to the pressure of arc gases under short-circuit conditions. The fuse element is attached at one end to a cap 11 that closes the upper end of the tube 13 and at its other end to a strip 18. The container consists of an insulating tube 5 having contacts 6, 19 ; contact 6 has a cap 9 which grips the cap 11 and holds the inner tube 13 in position. The strip 18 is attached to contact 19 by a nut 21. In a modification for heavy current working the fusible element consists of a composite strip formed from a relatively thick strip of zinc and a thin strip of copper.
Patent GB-714904-A (GB)
Title: Method of removing organic impurity from water
IPC: C02F1/26
Filed: 1952-11-17
Abstract: Organic impurities are removable from water by forming in the water an emulsion of an insoluble oil at a concentration of between 2 and 1000 gms. per 1000 kgms. of water, breaking the emulsion to remove the impurity-bearing oil from suspension in the water, and finally separating the impurity-bearing oil from the water.  Suitable oils include fatty acids, esters and mineral oils at a preferred concentration of between 2 and 50 gms. per 1000 kgms. of water, solid oils being dispersed using an emulsifying agent, e.g. sodium stearate.  The impurity-bearing emulsion is broken by the addition of oil-avid water-insoluble powdered hydrolisable salt of a bivalent or trivalent metal, e.g. ferric chloride, the gelatinous precipitate so formed being removed by filtration or by centrifuge means. Alternatively when using an emulsifying agent, the emulsion is broken by a demulsifier, e.g. calcium hydroxide and the precipitate removed mechanically.  The emulsion may also be broken by varying the pH value of the water under purification.
Patent GB-1237439-A (GB)
Title: Improvements in or relating to apparatus for turning and aligning of workpieces
Inventor: WELLAUER OSKAR
IPC: B23Q7/16
Filed: 1968-06-18
Abstract: 1,237,439. Turning wood panels on endlessconveyers. O. WELLAUER. 18 June, 1968 [22 June, 1967], No. 28904/68. Heading B8A. Wood panels (not shown) on a two-section endless conveyer comprising sets of endless bands 1a, 1b are conveyed into engagement with a turning device 2. Switches 21-24 initiate a downward movement of the conveyer belts 9, 10, so that the panel is lowered on to rollers 11 and into engagement with a lower plate 13 and telescopic arms 3 of the device 2. An upper plate (14) (Fig. 1, not shown) of the device 2 then clamps the corner of the panel to the plate 13 and the device 2 rotates through 90 degrees. An adjacent edge of the panel can then be worked on when the panel, thus re-orientated, is delivered to a machine 20A.
Patent GB-295529-A (GB)
Title: Improvements in and relating to water purifying apparatus
IPC: C02F9/00
Filed: 1927-10-31
Abstract: 295,529. Muchka, J. Sept. 28, 1927, [Convention date]. Filters with loose filtering-materials. - The filtering-medium, such as sand, gravel, quartz, or carbon, of a filter for water is sterilized by steam generated in the lower part of the filter or in a container 6 connected thereto. Water is supplied to the container 6, Fig. 1, through the pipe 2, which serves also as inlet for the water under treatment. The container 6 may be heated by a soldering lamp or gas flame. A safety valve 8 is provided. The water under treatment passes up a pipe 7 and down through the filtering medium 4 to an outlet 3. Fig. 2 shows an arrangement in which the pipe 7 is omitted, filtration is upward, and electric heating means are provided.
Patent GB-781084-A (GB)
Title: Improvements in and relating to recording devices
IPC: H04H60/43
Filed: 1954-10-08
Abstract: 781,084. Recording apparatus. ATTWOOD, B. G. W. Sept. 30, 1955 (Oct. 8, 1954; Feb. 22, 1955; May 25, 1955], Nos. 29059/54, 5264/55 and 15068/55. Class 106 (4). [Also in Group XXXVII] For recording the rotational position of a shaft in an electrical apparatus, e.g. of a television receiver tuning turret, an electric switch is provided adapted to be operated by the shaft together with means for moving a record member relative to a plurality of electrically actuated recording styli and control means adapted to cause the styli to produce distinctive indication on the record member in accordance with the position of the switch and in response to an electric current flowing in a conductor between an electric power source and the electric apparatus. The minute shaft 31 of a clock 12 drives by a gear 33 a gear 40 mounted between two friction discs 41, 42 and urged into driving engagement with the sprocket drum 23 of the tape 39. The take-up drum 47 is driven by a gear 52 also in mesh with the gear 33 but having balls 53 between friction discs 51, 48a to provide a lost motion as the amount of tape on the drum increases. As shown, four styli 22 of the electric type are provided and are operated in accordance with the setting of a rotary switch coupled to the shaft whose angular position is to be recorded. If recording is to be made of four or less angular positions then one particular stylus only is energized for each position. If more than four positions are to be recorded then the switch is designed to operate combinations of one or more styli for each position. Thus with the four styli shown, fifteen angular positions may be recorded. The styli are mounted on a block 60 which may be pivoted upwardly when required to change the tape. The styli may be brought into contact' with waxed paper by solenoids instead of being of the kind marking electrically sensitive paper when current passes. The friction discs 40, 42, 48a, 51 allow the position of the tape to be adjusted manually independently of the clock movement. The supply to the recording device is connected in series with the current to the apparatus being recorded so that no record is made when that apparatus is switched off.