baber/WOPTO huggingface dataset:
Patent GB-660954-A (GB)
Title: Improvements in or relating to a wet grinding mill
IPC: B02C7/08
Filed: 1949-07-22
Abstract: 660,954. Disc mill. ELS, H., FRINGS, A. and MEYNEN, M., (trading as FRINGS, H.). July 22, 1949 [Aug. 27, 1948], No. 19292/49. Class 59. A wet grinding disc mill for grinding mustard and like masses has a stationary millstone 22 and a revolving millstone 19 each individually fitted to a bracket 16, 15 respectively, said brackets being mounted on a column-like stand 11, which stand serves simultaneously as a support for a driving motor 12 and a compression pump 13. The stationary stone 22 is mounted on a backing 29 of yieldable material and is carried by a hollow shaft 27 supported in the bracket 16 and vertically adjustable therein by means of a hand wheel 24. A top part 32 of the mill casing is also carried by the shaft 23 and fits within a lower part 33 of the casing carried by the bracket 15.. The bracket 16 may be swung about the shaft 27. The product to be ground is fed by the pump 13 through a bore 39 in the stand 11, a throttle valve 42, a pipe 41 and the hollow shaft 23 to the grinding zone.
Patent GB-1188348-A (GB)
Title: Improvements in or relating to Separating Devices
IPC: F23J15/02
Filed: 1967-04-26
Abstract: 1,188,348. Cyclone separators. BABCOCK & WILCOX Ltd. 26 April, 1967 [26 April, 1966], No. 19325/67. Heading B2P. [Also in Division H2] Particles entrained in a gas at high temperature are separated from the gas by supplying the mixture to the whirl chamber of a cyclone separator to cause the particles to move centrifugally to the chamber walls which are cooled so that the particles at the walls form a viscous slag which is evacuated through an outlet in the whirl chamber, the whirl chamber being inclined to the vertical and having a lower end wall provided with a re-entrant flange portion surrounding an outlet for the gas, the slag outlet being at a lower level than that of the gas outlet. The cyclone separator may be connected to the conversion nozzle of a magnetoaero-dynamic generator (see Division H2) for recovering ionising seeds, e.g: potassium sulphate particles, from the gaseous current leaving the nozzle. As shown, a cyclone chamber 10 having a tangential inlet duct 17 connected to a rectangular opening 16 is provided with an outlet for gas defined by a re-entrant flange portion 15 of the base 14 of the chamber and with a tape-hole 25 in the base 14 for the evacuation of slag. The chamber walls 11, 13, 14 are lined internally with tubing 21 for circulation of cooling fluid between headers 22 and 23. Refractory lining constituting the internal surface of the chamber is attached to the tubing 21. Flux, e.g. magnesia or silica, may be injected through a nozzle 18 to form an easily flowable slag with the particles. A burner 20 may be used to raise the temperature of the gas to convert the particles, which may be in the solid state, to the molten or vapour state. A secondary chamber 26 for the removal of any particles still present in the gas leaving the chamber 10 is cooled by tubes connected in cooling circuits 29<SP>A</SP>, 29<SP>B</SP>, the chamber being provided with an outlet 30 for slag and a clean gas outlet communicating with a chimney 31 through a screen 28 formed by rearward extensions of the cooling tubes of the chamber wall 27. In modifications: (a) a part of the gas entering the chamber 10 may be made to heat particularly the taphole 25 to prevent it from being clogged; (b) the cooling fluid may have natural or forced circulation and may be water or molten metal; (c) the chamber 10 may be formed of two semicylindrical portions joined together along a common generating line and having a longitudinal inlet diametrically opposite the common generating line and the cross-section of the chamber may be in the shape of a volute or spiral; (d) a number of gas inlets may be provided spaced along the periphery of the cylindrical wall 11 of the chamber 10; (e) the burner 20, or more than one such burner, may be arranged along a generating line of the chamber wall 11 in the vicinity of the inlet opening 16.
Patent GB-849047-A (GB)
Title: Improvements in or relating to visual data transmission
Inventor: DAVIDSON JOHN HUGH MACREADY
IPC: H04N5/257
Filed: 1958-06-17
Abstract: 849,047. Television. DECCA RECORD CO. Ltd. June 17, 1959 [June 17, 1958], No. 19385/58. Class 40(3) A transparent plate 14 on which data may be written is scanned by the raster produced by a flying-spot scanner 10 (via lens 13 and mirror 15) and light scattered by the writing through the edge of the plate is received by photo-electric devices 19 via total internally reflecting prisms 18 secured by a transparent optical element to the two lever cut-off corners of the plate. With this arrangement the hand of the writer does not obscure data already written on the plate. The video signals produced by the photo-electric devices are then employed to reproduce the written data of a required location, if necessary after transmission over a radio frequency carrier. A further cut-off cover of the plate is also provided with a prism 16 by means of which light from a lamp 17 illuminates the plate to facilitate writing thereon if there is no external illumination. Since the comparatively long optical path which exists between the tube 10 and the plate 14 produces an appreciable depth of focus at the latter written matter on either side of the plate produces a similar scattering effect on the scanning light. The edges of the plate apart from the region adjacent the prisms may be silvered or coated with reflecting material and the regions adjacent the prisms given a diffusing finish. Specification 822,769 is referred to.
Patent GB-1235776-A (GB)
Title: Insulation
Inventor: GRAHAM ROBERT
IPC: F16L59/04
Filed: 1969-04-16
Abstract: 1,235,776. Insulating pipes; pipe bends. NEWALLS INSULATION & CHEMICAL CO. Ltd. 7 April, 1970 [16 April, 1969], No. 19433/69. Headings F2G and F2P. A pipe bend 1, Fig. 2, is thermally insulated by a series of wedge-shaped fibrous rings 5, wherein the fibres are perpendicular to the pipe axis so that the rings are axially compressible, the rings being axially split for assembly around the pipe bend. A board 8 of fibrous material, Fig. 4, e.g. resin-bonded glass fibre or mineral wool, with the fibres parallel to the surfaces, has right cylindrical rings 27 cut from it in three stages as shown. The rings 27 are then obliquely cut to produce the wedge-shaped rings 5, and an axial cut is made through one side and partially through the other side. The cut faces of the wedge-shaped rings 5 are sealed by a coating of water-based chlorinated rubber, applied by a roller partially submerged in a bath of the sealing liquid.
Patent GB-1220374-A (GB)
Title: A track-laying vehicle
Inventor: LUNDIN LARS OLOF
IPC: B62D55/112
Filed: 1968-04-24
Abstract: 1,220,374. Endless track vehicles. BOFORS A.B. 24 April, 1968 [10 May, 1967], No. 19444/68. Headings B7D and B7H. In a combat vehicle having a rigidly mounted weapon 2, or other endless track vehicle, comprising on each side an endless track 3 running over two stationary guide wheels 7, 8 and front and rear support wheels 4, 15 and 5, 16 mounted on bellcrank levers 9, 17 and 12, 19 which are coupled to hydraulic cylinders 10, 18 and 13, 20 determining the angular positions of the levers, and hence the height of the wheels 4, 15, 5 and 16 relative to the chassis 11, each lever is coupled to an electric signal generator 37, 39, 38 and 40 generating a signal representing the relative angular positions of the levers and chassis and the hydraulic cylinders on each side of the vehicle are coupled to the opposite sides of a reversible hydraulic fluid pump 23, 27 controlled to tilt the longitudinal axis of the vehicle, by the difference between a signal from a manually operated angle of elevation control 44 and the difference between the signals from the generators on that side of the vehicle, and at least one hydraulic cylinder 13, 20 on each side is connected to an hydraulic valve 33 for supplying and discharging hydraulic fluid from the cylinders 13, 20 to adjust the chassis mean height, the valve 33 being controlled by the difference between the sum of the signals from the wheel levers and a height-above-ground reference signal comprising a component substantially proportional to the cosine of the angle between the longitudinal axis of the chassis and the ground By using the cosine signal, which is generated by a tapping of a signal generator 43 associated with the control 44, the track tension may be maintained sensibly constant while varying the angle of elevation of the weapon 2 by adjusting the mean height of the chassis 11. The loads on the fore support wheels 4, 15 are equalized by a pipe 21, 29, 25 interconnecting the cylinders 10, 18.
Patent GB-1317682-A (GB)
Title: Method of making porous polymeric material
IPC: B01D67/00
Filed: 1971-06-08
Abstract: 1317682 Porous coating KINYO-SHA CO Ltd 8 June 1971 [15 June 1970] 19452/71 Heading B2E [Also in Division C3] A coated substrate, e.g. a non-woven nylon is made by making a porous polymer comprising a plurality of interconnected cells, by (a) mixing together a liquid prepolymer which can be converted from liquid to solid form by cross-linking during steps (b), an inert organic liquid which is insoluble in the prepolymer and does not boil under the conditions of step (b), and an emulsifier to form a stable emulsion of dispersed liquid prepolymer in the organic liquid; coating the substrate with the emulsion; (b) applying heat, radiation or light to the emulsion coating in the presence of a cross-linking agent for the prepolymer to coagulate the prepolymer dispersion into larger particles and to solidify these particles and to bond them together to form a porous polymer coating with a plurality of interconnected cells filled with the organic liquid and (c) extracting the organic liquid from the cells.
Patent GB-354935-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H3/60
Filed: 1930-06-27
Abstract: 354,935. Snap-action switches. IDE, G. H. and BENTLEY, H. L., Magnet Works, Landor Street, Birmingham. June 27, 1930, No. 19528. [Class 38 (v).] To ensure silent action of a tumbler or other quick-action switch, the contactarm a engages at one or both ends of its throw with a resilient buffer j of indiarubber or like material. Each buffer is preferably of cylindrical form, either solid or tubular, and is inserted through an aperture i in the switch base so that it may readily be removed and a new one inserted. The buffers are engaged by an overhanging side lip g on the contact-arm. In a modification the buffer is of tapered form in cross section and dovetails into the wall of the switch base. The switch may be of the type described in Specification 314,146, [Class 38 (v), Electric switches &c.].
Patent GB-823466-A (GB)
Title: Improvements in or relating to transistor circuits
IPC: G05F1/445
Filed: 1957-06-21
Abstract: 823,466. Switching systems. SIEMENSSCHUCKERTWERKE A.G. June 21, 1957 [June 22, 1956], No. 19622/57. Class 38 (4). [Also in Group XL (c)] A control circuit for the symmetrical control of an alternating current circuit 1 including a load 5 comprises a pair of transistors 3, 4 connected together in such a way that the base of each one is connected to the emitter of the other, the alternating current circuit 1 being connected to the pair of collector electrodes and a transformer 2, to the primary winding 2a of which is fed a rectangular control signal, having its secondary winding 2b connected to the pair of base electrodes. The transistors 3, 4 are disposed in an evacuated housing 6. Fig. 2 shows all the possible combinations of polarities obtainable, the circuit passing current when the polarities are as shown in Figs. 2a, 2d (the current path indicated by the dotted lines) and being blocked with the polarities shown in Figs. 2b, 2c.
Patent GB-123297-A (GB)
Title: Improvements in Stenter Clips.
Inventor: TAYLOR LEONARD
IPC: D06C3/04
Filed: 1918-11-28
Abstract: 123,297. Taylor, L., Taylor, E., and Taylor, J. Nov. 28, 1918. Addition to 117,381. Tentering.-In the tenter clips claimed in the parent Specification, having a swinging jaw d furnished with wings d<1> adapted to enter recesses in the bottom plate and provided with a scraper device a pivoted to the double arm b of the clip, a knife-edge c<2> on the bottom plate acts in conjunction with the inturned knife-edge a<2> on the scraper device to straighten out doubled over and under or curled edges.
Patent GB-1263810-A (GB)
Title: Carbon dioxide gas lasers and method of pumping same
IPC: H01S3/038
Filed: 1969-04-17
Abstract: 1,263,810. Lasers. CANADA, NATIONAL DEFENCE MINISTER OF. 17 April, 1969 [19 April, 1968], No. 19774/69. Heading H1C. A carbon dioxide gas laser which operates at atmospheric pressure or above and therefore does not require vacuum pumping equipment comprises a chamber 10 into which the CO 2  gas is introduced through an inlet 12, Fig. 1. The gas may contain a proportion of helium and nitrogen. The rear wall 21 of the chamber is formed as a curved mirror and the opposite wall is formed by a mirror 19 having a slot 20 through which a coherent beam of radiation is emitted when electrical discharges take place between a series of electrodes 14 and a common electrode 13 connected to a H.V. pulser 11. In the embodiment shown in Figs. 5, 6 the electrode 13 comprises a perforated tube to serve as the gas inlet and the mirror 19 has three arcuate slots 20 in a resonator utilizing a concave annular mirror 21.
Patent GB-677490-A (GB)
Title: Oil supply and scavenge system
IPC: F01D25/18
Filed: 1950-08-09
Abstract: 677,490. Gas turbine plant. MARCHANT, L. E. Aug. 9, 1950 [Aug. 19, 1949], No. 19825/50. Class 110(iii) [Also in Group XXXIV] In a lubricating system for the main shaft 10 of a gas turbine, an oil tank 1 is connected by a pipe 8 to a source of air pressure, such as a stage in the main engine compressor, and oil is fed by pipes 3 to the bearing housing 4 and is directed on to the bearings. A disc 13 having radial grooves, or alternatively radial corrugations, therein is secured to the shaft 10 between the bearings and projects between lips 15 into an annular space 16. The disc and annular space constitute a centrifugal pump returning the oil through a pipe 5 to the tank 1, oil circulation being maintained by the pressure difference between the tank 1 and the space 16, which difference remains substantially constant irrespective of engine speed. A non-return valve 18 in the pipe line 5 prevents air from the tank 1 escaping to the bearing housing when starting the engine, when the disc 13 is rotating as an unprimed pump. A non- return valve may also be inserted in the pipe 8 to prevent oil entering the compressor under conditions of negative G, and to maintain an oil supply under such conditions a stack-pipe (not shown) is provided extending from the outlet 2 into the upper part of the tank, a gravity-operated valve adjacent the outlet 2 by-passing the stack-pipe under positive G conditions.
Patent GB-618943-A (GB)
Title: Improvements in or relating to lasts for the manufacture of footwear
IPC: A43D3/02
Filed: 1946-08-30
Abstract: 618,943. Making lasts. INGRAM, A. Aug. 30, 1946, Nos. 19939/48, (divided out of 26205/46,) and 19938/48 (divided out of 618,698). [Class 17 (i)] A block of material is reduced by a series of cuts to leave plane upper and lower faces and sides, as shown in Fig. 8, which are afterwards rounded off at the edges to give the final shape of master last required, as shown in Fig. 9, in which the top rear surface is symmetrical about a vertical reference plane which passes through the centre of the heel and the centre of a line UV parallel to but slightly behind the line of the metatarso-phalangeal joints. The top and bottom surfaces at the toe end are parallel to the rear top face of the block, Fig. 8, and the heel base is in a plane surface 29 which is parallel to these surfaces and intersects a plane 26 which slopes forwardly downwards and intersects the base of the block at the metatarso-phalangeal joints, preferably that of the first toe, the heel base being at a height equal to the height of heel for which the last is intended. The surface 32 is substantially parallel to the line UV and intersects the reference plane at the vamp point T.
Patent GB-1135335-A (GB)
Title: Improvements in or relating to semiconductor oscillators
Inventor: CARROLL JOHN EDWARD
IPC: H03B9/14
Filed: 1966-05-06
Abstract: 1,135,335. Semi-conductor oscillators. NATIONAL RESEARCH DEVELOPMENT CORP. 3 May, 1967 [6 May, 1966], No. 20141/66. Heading H3T. In a semi-conductor oscillator having a semiconductor device 1 of the kind having the bulk property of exhibiting a current/voltage characteristic having a region of negative differential resistivity which allows current to switch from a high level to a lower level as a voltage applied across the device is increased, a resonant circuit is connected to the semi-conductor device so as to present an impedance at the second harmonic which is high compared to that presented to the fundamental frequency of the oscillator. This enhances the power output at the fundamental frequency of the oscillator. In the microwave oscillator shown (Fig. 2a) a coaxial cavity is provided with a choke 2 which provides low inductive impedance at the fundamental frequency but provides a high impedance at the second harmonic frequency. The cavity can be approximately one eighth the wavelength of the fundamental frequency (Fig. 2c, not shown), and is tuned by non-contacting tuning plungers 3. The oscillator output is connected to a resistive load by a coupling loop 4. The semi-conductor device may be of gallium arsenide or gallium arsenide phosphide.
Patent GB-494920-A (GB)
Title: A new or improved case or container for cigarettes
IPC: A24F15/02
Filed: 1937-07-21
Abstract: 494,920. Cases for dispensing cigarettes. FATTORINI, Ltd., T., and GOODARE, A. J. July 21, 1937, No. 20163. [Class 18] A cigarette case comprises a stationary back a, which may be fixed to the dashboard of a car, a pivoted front b and a drawer-like member c adapted for an outward sliding and delivery movement within the pivoted front as the front is opened, and for a return sliding movement as the front is closed. When the front is let down a tongue a<4> on the back abuts against a flange c<1> on the drawer and pushes it forward. When the case is closed the flange c<1> rests flat on the tongue a<4>. In side flanges c<3> of the drawer are slots c<2> which engage lugs b<2> indented from the side flanges of the front. The front is connected to the back by eyeleted pivots d in lugs a<5>. Extensions a<7> on the back limit the opening movement of the front. The case is held closed by a snap catch a<6>. Finger grips b<3> on the front facilitate opening. Tongues a<8> pressed out from the back hold book matches.
Patent GB-1147891-A (GB)
Title: Invalid bed
Inventor: WATERS THOMAS J
IPC: A61G7/05
Filed: 1966-05-06
Abstract: 1,147,891. Beds. T. J. WATERS. 6 May, 1966 [14 April, 1966], No. 20173/66. Heading A4J. A releasably mounted head board, of a hospital bed, can be used as a chest board, to be placed under a patient, while his heart is being resuscitated by massage.
Patent GB-531059-A (GB)
Title: Improvements in or relating to insulating material
IPC: E04B1/74
Filed: 1939-07-11
Abstract: 531,059. Compound sheet materials. ARDOR ENGINEERING CO., Ltd., and RICHARDSON, G. July 11, 1939, No. 20184. [Class 140] A compound waterproof, heat and sound insulating material comprises a corrugated sheet of waterproof paper secured on one side to a plane sheet of waterproof paper and on the other side to a plane sheet of metal foil or metallized non-metallic material. The sheets may be secured together by adhesive, stapling or sewing. Several units may be combined or a central sheet of foil may be provided on both sides with corrugated material to which the plane sheets are secured. As shown a sheet of aluminium foil is secured by adhesive 2 to a corrugated sheet of waterproof paper 3 comprising an inner layer of bituminous material between outer layers of kraft paper. A similar plane sheet 4 is secured to the other side of the corrugated sheet. Building board or asbestos board may be secured on either of the exterior surfaces.
Patent GB-839462-A (GB)
Title: Comminutor for screenings, more particularly in sewage purification plant
Filed: 1956-06-29
Abstract: 839,462. Comminuting apparatus. PASSAVANT, W., PASSAVANT, U., and SCHRAMM, P., [trading as PASSAVANTWERKE]. June 29, 1956 [July 1, 1955], No. 20274/56. Class 59 A comminutor for screenings comprises stationary tools in the form of a grid-like cage forming a disintegration chamber and at least one tool in the form of a cutter, beater and grinder rotatable about an axis and mounted within the disintegration chamber so as to be pivotable about an axis eccentric to the first-mentioned axis, the shortest distance between the eccentric axis and the grid-like cage being less than the distance between the eccentric axis and at least one point on the periphery of the tool, the arrangement being such that, when the comminutor is in operation, the or each rotatable tool will move outwardly under the action of centrifugal force to comminute material between the rotatable and stationary tools. As shown, the comminutor forms part of a sewage purifying plant and comprises a single tool in the form of an overhung crankpin l which is rotatable within a cage formed of obliquely-arranged tools e. The tool l is provided with a counterweight in the form of a crankpin n, the crankpins l, n being mounted in crankshafts k, m mounted in a block j driven by a motor-driven main shaft i. The tools e are in the form of cutter bars which may be exchangeably and/or adjustably fitted or the entire cage may consist of a single casting. The crankpins l, n are in the form of triangular prisms, Fig. 3, the centres of gravity o of which are situated outside the plane p containing the main shaft i and the axes of the crankshafts k, m. The outward throw of the tool may be limited by stop members. The screenings are introduced tangentially into a chamber a in the direction of the arrow r 1 , Fig. 2, and induce a downward cyclonic eddy the formation of which is supported by a nozzle s which discharges into the chamber a in the direction of the arrow r 2 . The chamber a communicates through an opening b with an antechamber c. The pumping action of the tool l likewise induces the formation of an eddy which draws the material from the antechamber c into the disintegration chamber f. The cage is provided with a gap g, Fig. 2, to prevent ineffective circulation of the screenings. If the content of suspended sludge is particularly large, the effluent may be arranged to fall temporarily over a weir, which may be adjustable in height, into the antechamber. The comminuted screenings escape through the gap between the bars e into a diffuser d to be carried away in the direction of the arrow r 3 , Fig. 2.
Patent GB-761110-A (GB)
Title: Improvements in or relating to copper-base alloys
IPC: C22C9/06
Filed: 1954-07-12
Abstract: A copper-base alloy consists of: Ni more than 5 - 15 per cent; Si 0.1 - 2 per cent; Al 0.1 - 6 per cent and/or Mg 0.1 - 2 per cent; Cu, the remainder.  The alloy may be made by melting the Cu and Ni, deoxidizing with a Cu-P master alloy, adding the Si and then the Al and/or Mg and casting as soon as the solution of ingredients is complete.  The cast alloy may be hot and cold worked and is quenched from 1600-1850 DEG F. and aged at 700-1100 DEG F. Current-carrying spring-contacts may be made from the alloy.