baber/WOPTO huggingface dataset:
Patent GB-904946-A (GB)
Title: Improvements in or relating to a filtering process and apparatus
IPC: B01D37/02
Filed: 1960-10-10
Abstract: 904,946. Filters. DE LAVAL TURBINE PACIFIC CO. Oct. 10, 1960 [June 29, 1960], No. 34667/60. Class 46. Liquid being filtered is introduced at 14, Fig. 2, past a baffle 16, and passes through elements 18 each consisting of a mesh tube closed at the lower end and having a spiral spring inside; the upper end of each tube is bent over an 0-ring. Initially a pre-coat of filter aid is formed on the elements from filter aid suspension which is circulated by a pump, liquid to be filtered being fed to the pump at the same time, however, until the apparatus is full. When the pre-coat is complete liquid to be filtered is pumped in together with more filter aid and normal filtration proceeds. On completion of filtration all valves in the system are closed except one which admits compressed air to the outlet chamber 26 through outlet connection 30. When a valve in a pipe connected to a drain 42 is opened, the elements are backwashed by filtrate forced through them by the compressed air, the resulting cakesludge being carried into a drain tank (not shown). From the drain tank the sludge is pumped through a flexible pipe 86, Fig. 4, discharging through a normally-closed door 120 to the inside of an inverted filter bag 108. Filtrate is discharged beyond a backing screen 106 through a pipe 96. When all the sludge in the drain tank has been filtered, the cake in the bag 108 is dried by admission of air at 86. Then the door 120 is opened to the position shown by rack, pinion, crank and rod mechanism 140, 152-162, operated by an air cylinder 144, whereupon most of the cake falls into a box 98, the remainder being shaken off the bag 108 by vertical oscillation of plates 114 (to which the closed end of the bag is secured) by an air cylinder 164. The main circuit including the first filter includes also a dirty-liquid compartment in a tank from which liquid is withdrawn for filtration, filtrate being discharged to another compartment separated from the first by a weir. Filtrate is used in a second circuit at a rate lower than the filtration rate, so that normally the excess filtrate flows over the weir into the dirty-liquid compartment.
Patent GB-467419-A (GB)
Title: Improvements in and relating to key caps for typewriters and other key-operated machines
IPC: B41J5/12
Filed: 1935-12-13
Abstract: 467,419. Moulding typewriter &c. keys. EVANS, W. E. (Olympia Buromaschinenwerke Akt.-Ges.) Dec. 13, 1935, No. 34696. [Class 87 (ii)] [Also in Group XVI] Key caps for typewriters or other keyoperated machines are moulded from a plastic substance under heat and pressure into the form of a blank 2, Figs. 5 and 6, having bas-relief characters 3 in the top surface and channels extending from the bottom of the blank into the characters, and then filling the channels and the bas-relief portions with a substance 8 which hardens on cooling. The portion 2 is made by placing a resinous composition between upper and lower heated members 20, 10, Fig. 1. The lower member carries an interchangeable ejector part 13 having the characters 14 in high relief, while the upper member has conical studs 22 for producing the channels, and carries a stem 5 for embedding in the key. The blank 2 is then transferred to a recess in a bed 30, Fig. 7, and acetyl cellulose from a heated cylinder 31 is forced into the channels and characters of the key cap. The filling hardens on cooling, and the material in the channels locks the characters in position.
Patent GB-647513-A (GB)
Title: Improvements in or relating to the production of flexible tubing or the like
IPC: B21C37/12
Filed: 1943-06-21
Abstract: 647,513. Tube - making machines. BREMER, R. C. June 21, 1943, No. 34952/47. Divided out of 647,460. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 31, 1947.] Drawings to Specification. [Class 99(ii)] [Also in Groups XXII and XXXVI] In a method and machine for producing flexible tubing or armouring from strip material, the strip is wound under tension on a rotating mandrel and the tube so formed is fed by the mandrel to a rotating corrugating tool, the corrugations then being subjected to a cylindrical pressing action to smooth them and cause them to approach each other. The apparatus is described in detail in Specification 647,460. Specifications 647,515, 647,516 and 647,517 also are referred to.
Patent GB-1152398-A (GB)
Title: Improvements in Electrical Insulation and method of Treatment
IPC: H01B3/00
Filed: 1967-07-31
Abstract: 1,152,398. Trichlorosilane. SHIN-ETSU CHEMICAL INDUSTRY CO. Ltd. 26 April, 1967 [25 July, 1965], No. 19292/67. Heading C1A. [Also in Division C3] Trichlorosilane is prepared as by-product in the preparation of methyldichlorosilane (see Division C3), by contacting a gaseous mixture of methyl chloride and hydrogen chloride with a contact mass of silicon, copper and nickel at a temperature of 230-350‹ C, the combined copper and nickel content of the contact mass constituting 5 to 15% of the total weight of the mass and the weight ratio of Cu to Ni being from 20: 1 to 2: 1. The copper and nickel may be in the form of a powder or a powdered alloy of the two metals. The ratio of methyl chloride to hydrogen chloride preferably lies within the range of 4: 1 to 0À2: 1.
Patent GB-800899-A (GB)
Title: Production of cut fibres from continuous filaments
IPC: D01G1/04
Filed: 1956-11-15
Abstract: 800,899. Stapling fibres. SOC. RHODIACETA. Nov. 15, 1956 [Nov. 15, 1955], No. 34996/56. Class 120(3) An apparatus for stapling fibres comprises a rotary support having end-plates with radial slots on which cutting-heads 1 are adjustably mounted: each head carries a clamp 20 and a knife 13 which are operated by means, such as spring-urged members 8, 15, under the control of further means such as cam-surfaces 10, 17. The knives and clamps are arranged alternately: the control means closes an adjacent pair of clamps to grip the sliver, operates the knife between them, and opens one of the clamps to release the cut fibres. It then closes a third clamp adjacent that of the original pair which remains closed and operates the knife in between. The operation continues in this way. The knives may take the form of ordinary razor-blades.
Patent GB-390265-A (GB)
Title: Mop wringer
IPC: A47L13/14
Filed: 1931-12-18
Abstract: 390,265. Mops. PREECE, H. A., 91, High Street, Thame, Oxfordshire. Dec. 18, 1931, No. 35022. [Class 19.] A wringing attachment for a mop 2 comprises a conical member 3, the smaller end of which is slidable on the handle 1 and the larger end is connected to the handle by a flexible conical bag 6. When the mop is to be wrung, the bag 6 together with the mop is drawn within the member 3 and twisted. Means may be provided for retaining the mop in the position shown in Fig. 1, with respect to the wringing attachment. The bag 6 may be formed of fabric, asbestos, metal chain mail, or a series of closelyspaced flexible cords, wires, or chains.
Patent GB-493586-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
IPC: G11B27/13
Filed: 1937-12-17
Abstract: 493,586. Gramophones. ROUTIN, J. L. Dec. 17, 1937, No. 35066. Addition to 489,894. [Class 40 (ii)] Consists in the following detail improvements in the repeating device for gramophone records claimed in the parent Specification. (1) The needle-guiding plate is made of metal hardened on its surface by chromium plating, heat treatment or other processes. (2) A protective layer or thin strips 24 of chamois leather &c. are provided on the under side of the plate. (3) Means for adapting the repeating-device for fitting on the spindle of the turntable, irrespective of the diameter of the spindle, comprise a cap 20 which may be sprung over the end of the spindle 1 (the central hole in the record being reamed, if necessary, to the external diameter of the cap). A cylindrical core 12, having an eccentric hole 13 surrounded by a flanged socket 14 through which the cap 20 passes, forms a bearing for the plate 11, a knob 15 having a graduated dial 17 associated with an index mark 18 being fixed to the part 12. This improvement relates particularly to the device shown in Figs. 5 and 6 of the parent Specification.
Patent GB-431856-A (GB)
Title: Explosion or internal combustion engine
IPC: F02B25/00
Filed: 1933-12-13
Abstract: 431,856. Ejecting exhaust. KADENACY, M., 120, Rue Lecourbe, Paris. Dec. 13, 1933, No. 35067. Convention date, Aug. 1. [Class 7 (ii)] The column of exhaust gases in an adjustable outlet pipe is arranged to produce a vacuum in the engine cylinder and induce a fresh charge through a mechanically opened valve; this valve is opened only when the oscillating column of gases has produced a steady outward flow of gases in the exhaust pipe and not during the preliminary oscillating period prior to such flow. The pipe may be of increasing cross-sections towards the ' outlet and be telescopic ; a non-return valve may prevent back flow. In a modification reversed flow of the gases is prevented by placing a closed tube 11 over the end of the outlet pipe from the cylinder, this tube being enclosed in a larger chamber 10 ; the position of the tube 11 is adjustable on the pipe 7. The tube 11 may telescope in another carried by the pipe 7. At starting air under pressure may be supplied. Specification 100,728, [Class 7 (ii)], is referred to.
Patent GB-1014329-A (GB)
IPC: H03K3/78
Filed: 1964-08-27
Abstract: 1,014,329. Magnetron arrangements; semiconductor circuits. ALBISWERK ZURICH A.G. Aug. 27, 1964 [Aug. 28, 1963], No. 35084/64. Headings H3T and H3W. In a pulsed magnetron transmitter, the supply voltage to the pulse modulator is reduced during the warming-up period by means of a series resistor bridged by a circuit element the resistance of which decreases with increasing emission from the magnetron cathode. As shown, the supply from the rectifier G to the pulse modulator M is initially reduced by a resistor R1, but, as the emission from the cathode of the magnetron S increases the voltage developed in resistor R2 becomes sufficient to trigger a thyratron transistor Th which short-circuits R1 and allows the full power to be supplied.
Patent GB-644626-A (GB)
Title: Improvements in or relating to ceramic insulators
IPC: C04B35/46
Filed: 1947-12-31
Abstract: A ceramic insulator having a dielectric constant of at least 95 and a dielectric loss factor not exceeding 20 X 10-4 at 200 metres is made by sintering titanium dioxide containing not more than 1 per cent basic impurities and sufficient of another oxide or oxides which will form salts with basic oxides to neutralize the impurities.  Oxides of beryllium, aluminium, silicon and zirconium are suitable additions. Subsequent to sintering, rapid cooling is effected from a temperature slightly below the temperature of dissociation of the titanium dioxide to at least 700 DEG  C.  Specification 510,475 is referred to.
Patent GB-394011-A (GB)
Title: Improvements in or relating to aerial systems and electrical power systems for use in association therewith
IPC: H01Q1/06
Filed: 1931-12-19
Abstract: 394,011. Aerials; directive wireless signalling. MARCONI'S WIRELESS, TELEGRAPH CO., Ltd., Marconi House, Strand, London, DAVIS, N. E., Openways, Little Baddow, 'Chelmsford, and QUICK, R. C., White Hatch, Middleton Road, Shenfield, both in Essex. Dec. 19, 1931, No. 35203. [Class 40 (v).] The current supply to a signal lamp 12 or 13 mounted on or near the aerial masts of a directional wireless system of the kind described in Specifications 354,322 and 359,562, as used for instance at an aerodrome, is fed through wires 1, 2 or 3, 4 which themselves - serve as the aerials. Alternatively the supply wires may be contained inside a metal braiding or covering which serves as the aerial. The signal currents are kept out of the supply mains L, M by chokes 5 .. 8 whilst condensers 9, 10 pass them to a screened conductor 15 which is coupled by a transformer 16 to the transmitting or receiving apparatus. The arrangement is designed to minimize the effect of re-radiation on the directional response of the aerial system.
Patent GB-465834-A (GB)
Title: Improvements in spring assemblies for upholstery
IPC: A47C27/04
Filed: 1935-12-19
Abstract: 465,834. Spring upholstery. DAVIS, J. M., and PULLMAN SPRING-FILLED CO., Ltd. Dec. 19, 1935, No. 35230. [Class 52 (iv)] In a spring assembly wherein the springs, or their end coils only, are enclosed in fabric pockets and tie wires run between the rows of springs the latter 7 are arranged alternately in. the upper and lower surface and at their ends are connected to the wire clips 6 by which the springs are secured together.
Patent GB-896818-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
Filed: 1960-03-17
Abstract: The invention comprises a compound having the formula <FORM:0896818/IV (b)/1> wherein R is a b -hydroxymethylene or carbonyl group, X is fluorine, chlorine or bromine and the 1,2-carbon atom linkage denotes a single or double bond linkage and a process for the preparation thereof by subjecting a compound of the formula <FORM:0896818/IV (b)/2> to reduction, e.g. with zinc in acetic acid, sodium bisulphite, or sodium or potassium thiosulphate.  A D 1-double bond may be introduced by microbiological fermentation. Alternatively a 9,11-halohydrin is dehydrated to form a 9,11-dehydro compound, said 9,11-dehydro compound is treated with hypohalous acid followed by epoxidation to form a 9,11-oxido compound which is reacted with HF.
Patent GB-645123-A (GB)
Title: Improvements in or relating to velocity modulation valves of high power and wide pass band
IPC: H01J25/10
Filed: 1945-12-31
Abstract: 645,123. Velocity-modulated tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 31, 1945, No. 35329. Convention date, Nov. 14, 1944. [Class 39 (i)] The electron stream is divided into a number of separate ribbon-shaped beams 5, 5<SP>1</SP>, 5<SP>11</SP>, Fig. 6, lying one above the other in a plane and interacting with the same cylindrical re-entrant resonator such as the buncher 1, which is excited so as to oscillate in a mode which provides a voltage antinode for each beam. It is shown mathematically that an increase in power is obtainable over a single beam of the same dimensions. The device may be a tworesonator klystron with a separate catcher resonator 2, or a single-resonator oscillator of the coaxial-line or reflex type. In a modification, there are four sets of ribbon-shaped beams 5, 5<SP>1</SP>, 5<SP>11</SP>, 5<SP>111</SP>, Fig. 8, each interacting with a separate re-entrant portion of concentrically-arranged buncher and catcher resonators 1, 2 respectively.
Patent GB-1431075-A (GB)
Title: Roller bearings
IPC: F16C33/76
Filed: 1973-07-25
Abstract: 1431075 Bearings; seals SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 25 July 1973 [26 July 1972] 35352/73 Headings F2A and F2B In a roller thrust bearing comprising a sheetmetal sleeve 5 mounted on the radially outer surface 6 of a flange-less race ring 1, the bearing space is sealed by a ring 4 of resilient material, and one edge of the sleeve is folded inwardly in the zone of the said surface and subsequently extends substantially parallel to the raceway 8 of the said ring and then extends towards the other ring 2 and is radially spaced from the internal surface 7 of the sleeve to form a flange 9 for radially guiding the rollers. A similar sleeve may alternatively or additionally be mounted on the radially inner surface of the race ring. When the assembly is recharged with grease spent grease is expelled through a gap 13, and through apertures 14. The assembly is held together by means of impressions 15 on the edge of the sleeve which engage in a recess 16. The rollers, which may be cylindrical or tapered, may be separated by plastics spacers or disposed in a cage.
Patent GB-310862-A (GB)
Title: Improvement in controlling lever for machine tools
IPC: B23Q1/30
Filed: 1927-12-30
Abstract: 310,862. Marks, E. C. R., (Warner & Swasey Co.). Dec. 30, 1927. Driving Machines.-An actuating-lever for controlling the adjustment of saddles and slide rests in turret and engine lathes and otherwise for use on machine tools comprises an inner or main part 17 carrying a laterally projecting element 23 for engagement with suitable means to hold the lever in a required position, and an outer or handle part 18 rotatably mounted in the main part and adapted to retract the element 23 when turned. The lever may control a clutch 14, 15 by means of cam bosses 19, 22, as shown in Fig. 2, to adjust a cross slide through gearing from a lead screw 13-. When the lever is lifted to engage the clutch, a spring pressed pin snaps into a bushing 24 carried on the face of the machine part 10. Disengagement is effected by turning the handle 18, the face 27 of a recessed part cf the handle stem engaging a recess 23<b> in the pin 23. An adjustable stop 28 determines the return position of the handle. In the traverse of the machine part, the lever may be disengaged automatically by a dog 29 acting through plungers 30, 31 to eject the pin 23 from the bushing 24. The fall of the lever is cushioned by a rubber buffer which drops on to a shoulder on the machine.
Patent GB-435521-A (GB)
Title: Improvements in electric alarm devices
IPC: H01H85/30
Filed: 1933-12-15
Abstract: 435,521. Thermal switches. SOC. ELECTRO-GARD, 46, Rue de Seze, Lyons, France. Dec. 15, 1933, Nos. 35391 and 35392. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 25, 1934]. [Class 38 (v)] A thermal switch for use in firealarms comprises a post d pivoted at e to a base a and connected to a fixed post b by a link c which on excess temperature fuses allowing the post d to move to the right under the action of a spring f to move contact springs g, g<1> together to complete an alarm circuit. Various forms of fusible and releasable members are described. The fusible members may also be fused by excess current.
Patent GB-205744-A (GB)
Title: Improvements in or relating to wireless masts or like structures
IPC: E04H12/10
Filed: 1922-12-30
Abstract: 205,744. Elwell, Ltd., C. F., and Wing, S. P. Dec. 30, 1922. Guy ropes. -- A wireless mast, column or like frame structure comprising a number of longitudinal members 10, 11, 12 has the guy ropes 15, 16, 17 connected to an additional element 14 which is rigidly and directly connected to each of the longitudinal members so as to distribute the tension to all the members. The point of connection of the guy ropes is preferably centrally disposed as shown.
Patent GB-996629-A (GB)
Title: Molecular sieve catalyst activation process
IPC: B01J29/068
Filed: 1962-09-18
Abstract: A crystalline zeolite molecular sieve catalyst loaded with one of the six Pt group metals is activated by initially heating at superatmospheric pressure below 320  DEG F. until its water content is not more than 1,8% and thereafter heating at superatmospheric pressure and temperatures above 320  DEG F. in the presence of hydrogen.  U.S.A. Specifications 2,882,244 and 2,971,904 are referred to.
Patent GB-508022-A (GB)
Title: Improvements in and connected with flying machines
IPC: B64C39/00
Filed: 1937-12-23
Abstract: 508,022. Flying machines. WARREN, N. H., and YOUNG, T. R. Dec. 23, 1937, No. 35582. [Class 4] Supporting surfaces arranged on both sides of the longitudinal axis of a flying machine are substantially triangular in outline and comprise front and rear planes 1, 2, Figs. 1 or 2, converging to a tip surface 3 and enclosing a triangular space. Two or more supporting surfaces may be arranged in superposition. The front and rear planes may be directly or indirectly attached or not attached to a body structure, in which latter cases the base of each triangle is located on the longitudinal axis. The surfaces may be set at any dihedral angle and the dihedral angles of the front and rear planes may be different.. The angles of incidence and the sections of the front plane, rear plane and tip surface, and the widths of the front and rear planes, may be the same or different and may vary in the direction of span. The tip surface 3 may be movable in whole or in part. The supporting surfaces are shown applied to monoplanes with the engine and airscrew at the front or rear and may be applied to a machine having engines at the front and rear with the passenger space located between them. The front and rear planes may be attached to front and rear nacelles either or both of which contain a motor or motor and passenger accommodations Alternatively, the front or rear nacelle may be omitted and the motors installed in the rear or front planes. Tail planes may be provided and control surfaces located in any suitable positions. According to the Provisional Specification, control surfaces may be provided on the rear planes and tip surfaces.
Patent GB-1468281-A (GB)
Title: Body for influencing the direction of flow of a flowing medium
IPC: F01D5/14
Filed: 1974-08-13
Abstract: 1468281 Deformable fluid-flow control surface DORNIER SYSTEM GmbH 13 Aug 1974 [26 Sept 1973] 35598/74 Headings B7G and B7W A body for influencing the direction of fluid flow, e.g. a jet deflector blade, an aerofoil or a rudder, comprises rigid leading edge and trailing edge parts 12, 13, a skeletal member 30 rigidly connected to the leading edge part and movably mounted on the trailing edge part, resilient outer skins 15, 16, and bracing members 39, 40 acting between the skins and the skeletal member. The bracing members adjust the profile thickness of the body when the skeletal member moves relatively to the skins in the chordal direction. In the jet deflector blade illustrated a rigid spar 17 is fixed to the skeletal member, which is resilient, and causes the skeletal member to be deflected by movement along curved guide tracks (45), Fig. 5 (not shown), in the side walls of the jet duct. The undulatory nature of the skeletal member acts on the bracing members 39, 40 to vary the profile thickness as the camber is varied. The bracing members may be provided with spring- biased rollers (54, 54<SP>1</SP>), Fig. 6 (not shown), to retain the bracing members in sliding contact with the skeletal member 30. In an alternative embodiment, Fig. 8 (not shown), the skeletal member (75) is not undulatory, and bracing members (70, 71) in the form of links, are articulated to the skeletal member and skins.
Patent GB-984365-A (GB)
Title: Pyrimidine derivatives
Inventor: HULL ROY
IPC: C07D239/22
Filed: 1961-10-03
Abstract: The invention comprises compounds of the general formula <FORM:0984365/C2/1> (wherein R1 stands for an alkyl or alkoxy-carbonylmethyl radical, R2 stands for an alkyl radical and R3 stands for an alkoxy radical), and their preparation by reacting R4NHCONH2 (wherein R4 stands for an alkyl, alkoxycarbonylmethyl or carboxymethyl radical) with R2COCH2COR3 and 5-nitro-2-furaldehyde, or a dialkanoyl derivative of 5-nitro-2-furaldehyde hydrate, under acidic conditions, the reaction being carried out in the appropriate alkanol when R4 stands for a carboxymethyl radical.  The compounds of the invention are active against viruses of the psittacosis-lymphogranuloma-trachoma group.  The Provisional Specification defines the invention in wider terms.
Patent GB-326173-A (GB)
Title: Improvements in or relating to dip or seal pipes as used in the manufacture of gas
IPC: C10B27/06
Filed: 1928-12-03
Abstract: 326,173. Gas Light & Coke Co., Leech, W. J. B., Hay, S., Hollings, H., and Burton, A. E. Dec. 3, 1928. Dip-pipes, - Dip-pipes are provided with a movable sleeve or lining with operating means external to the dip-pipe, for covering or uncovering openings in the wall of the dip-pipe or in the moving member. A dip-pipe 1 has four openings 4 which may be more or less covered by a closure member 6 adapted to be drawn over the lower part of the dip-pipe by means of a lever 8 and connecting rod either manually, or by means such as described in Specification 302,437. The combined area of the openings may thus be controlled so that the pull on the retorts is maintained constant during the whole period of gasification. In a modification, the member 6 may be arranged within the dip-pipe; and in another modification, the dip-pipe may be arranged to move within a stationary sleeve.