baber/WOPTO huggingface dataset:
Patent GB-640181-A (GB)
Title: Improvements in or relating to ultra high frequency wave transmission systems
IPC: H01Q21/08
Filed: 1947-09-23
Abstract: 640,181. Wave-guides. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 23,1947, No. 25887. Convention date, Sept. 24, 1946. [Class 40 (viii)] [Also in Group XL (c)] In a'high-frequency transmission system including a coaxial line having inner and outer conductors and a wave-guide section, the inner conductor extends into the waveguide at a point intermediate its ends in the form of a tapered tongue having its base connected to an inner wall of the wave-guide. In Fig. 3, the inner conductor of a transmission line TL is flared outwardly in a plane at right angles to the drawing, and the base of the tongue so formed is connected at X to the wall of a U-shaped waveguide W1, W2, thus providing a gradual transfer of the characteristic impedance. To provide an in-phase feed where the guides W1, W2 merge at W into a horn H, guide W2 is given a 180 degree twist. Alternatively, each guide may be given an opposite 90 degree twist, or the electrical lengths of the guide may differ by one half wave-length. In Fig. 6, the inner conductor 15 of line TL broadens out into a tongue 28, the base of which is as broad as the wall of wave-guide W to which it is -joined. Figs. 8 and 9 show a vertical tubular antenna having diametrically opposed pairs of half-wave resonant slots 40, 50 fed by wave-guide sections 41, 51. A coaxial feeder TL1 has a flared outer conductor 45 joined to one wall of wave-guides 41, 51 while the inner conductor 44 is also flared, and its base is joined at J to the inside of the cylinder at the junction point of wave-guides 41, 51. Successive pairs of radiating slots are arranged relatively at 90 degrees, and the transmission lines TL1, TL2, joining them to a main feed TL differ in length by a quarter wave-length. Fig. 10 shows an array of radiating slots 62, 64 in a flat conducting sheet. The slots are energized by the flared out inner conductors 74 of a branched coaxial line TL. The horns may be used for transmitting or receiving.
Patent GB-814734-A (GB)
Title: Improvements relating to ball-pointed pens
IPC: B43K1/08
Filed: 1955-09-09
Abstract: 814,734. Reservoir pens. VENUS PENCIL CO. Ltd. (American Lead Pencil Co.). Sept. 9, 1955, No. 25889/55. Class 146(3) [Also in Group XXII] The writing tip of a ball-point pen comprises a one-piece member 5 formed at one end with a housing 7 for the ball 13 and with an axial ink passage 11 opening into the housing, a part-spherical seat 14 for the ball, and a number of lateral ink passages 12 communicating with the passage 11 and opening into the housing in circumferentially spaced positions 15 about the seat 14. The cross-sectional area of each opening 15 is less than that of the corresponding passage 12 due to forcing the ball 13 into the base of the housing 7 to form the seat 14. The tip is formed (see Group XXII) from the member 5, which was originally solid, by drilling the passage 11, boring the housing 7, broaching the passages 12, pressing in the ball to form the seat 14, and finally peening over the outer edge 10 to retain the ball.
Patent GB-484276-A (GB)
Title: Headlights for vehicles
IPC: F21V7/00
Filed: 1937-02-22
Abstract: 484,276. Vehicle - lamp reflectors. AKTIEBOLAGET TIMBRO. Feb. 22, 1937, No. 25981. Convention date, Feb. 22, 1936. Divided out of 482,777. [Class 75 (ii)] In a vehicle-lamp reflector in which a vertical section through the axis X-X is elliptical at the front 20, and at the rear 19 is such that rays from a light source placed in or close to the posterior focus 12 of the foremost elliptical part are substantially parallel after being reflected by said rear part, as shown in Fig. 2b, a horizontal section through the axis has a portion 21, Fig. 2a, intermediate the foremost and rear parts which illuminates a space between the areas illuminated by the front and rear parts, the horizontal section of the foremost and rear parts is identical with the vertical section thereof, and the vertical section of the intermediate part is such that rays reflected thereby pass through the anterior focus 13 of the foremost elliptical part. In the form shown, the front part 20 is ellipsoidal and the rear part 19 is paraboloidal with its focus at 12, and rays from the side surfaces of the intermediate part 21 converge farther and farther away from the anterior focus 13, as at 18, 22, 23. The three parts of the reflector merge continuously into one another, and the reflector is cut off by a horizontal plane through the common axis X-X. The lamp may be fitted with a shade 37.
Patent GB-705961-A (GB)
Title: Manufacture of new monoazo-dyestuffs
IPC: C09B29/30
Filed: 1951-11-06
Abstract: Naphthalene derivatives of the formula <FORM:0705961/IV (b)/1> where Z is a benzene residue with an alkyl or cycloalkyl substituent of 3-8 carbon atoms, one X is sulphonic acid and the other is hydrogen, are prepared by treating H acid or K acid with a halide of Z-COOH.  An example is given of the use of p-tert-butyl-benzoyl chloride and other suitable acylating agents are mentioned.ALSO:The invention comprises monoazo dyestuffs of the formula <FORM:0705961/IV(c)/1> where R is a benzene residue free from solubilizing groups and containing no o-hydroxy group, Z is a benzene residue having an alkyl or cycloalkyl substituent of 3-8 carbon atoms, one X is sulphonic acid and the other is hydrogen; R may contain other substituents, e.g. a phenoxy group, an o-alkyl or an o-alkoxy group.  The alkyl or cycloalkyl substituent in Z is preferably in the p-position and other substituents may be present.  The dyestuffs are made by coupling diazotized aniline or a suitably substituted aniline with the appropriate acylaminonaphtholdisulphonic acid.  They are suitable for dyeing and printing leather, silk, wool, animalized artificial silk, superpolyamides and superpolymethanes.  In the examples the following dyestuffs are made: (1) aniline --> N-(p-tert-butyl-benzoyl)-4 acid, (2) 2-amino-2\sv : 4-dichloro-diphenylether --> N-(p-tert-butyl-benzoyl)-4 acid, (3) p-acetylamino-aniline --> N-(p-tert-butyl-benzoyl)-4 acid, (4) 2-amino-4\sv-tert-amyl-diphenylether --> N-(p-tert-butyl-benzoyl)-4 acid; (5) 2-ethylaniline --> N-(p-tert-butyl-benzoyl)-4 acid; (6) 4-amino-diphenylether --> N-(p-isoproyl-benzoyl)-4 acid; (7) 2-ethylaniline --> N-(p-cyclophenyl-benzoyl)-4 acid; and (8) 4-chloro-2 : 5-dimethoxyaniline --> N-(p-tert-butyl-benzoyl)-4 acid. A further example shows the dyeing of wool in an acetic acid bath with the product of (1).  Other suitable components are mentioned.
Patent GB-316801-A (GB)
Title: Improvements in or relating to pneumatic conveyors for dealing continuously with materials in bulk
IPC: B65G53/52
Filed: 1928-09-12
Abstract: 316,801. Blackett, W. C. Sept. 12, 1928. Pneumatic conveyers. - In a pneumatic conveyer used for conveying finely powdered material such as coal dust, packing of the material is prevented by arranging within the conveyer pipe a flexible member 9, such as a steel or other stranded rope, which can be rotated at one or at each end. The tension of the rope is adjusted by a screw 17.
Patent GB-1037226-A (GB)
Title: Direct current power supply
IPC: H01F27/40
Filed: 1963-07-02
Abstract: 1,037,226. Transformers; semi-conductor rectifier assemblies. MASCHINENFABRIK OERLIKON. July 2, 1963 [July 17, 1962], No. 26251/63. Headings H1K and HIT. [Also in Divisions F4 and H2] In a high voltage rectifier system comprising a transformer in a casing and associated semiconductor diodes and fuses, rigid conductive members 1 and 2 are mounted on the transformer casing by insulation 10, 11, the member 1 carrying the diodes 3 and the member 2 carrying the fuses 4, 41. Each pair of beams is separated by a conductive screen 8 which may contain metal inserts to provide magnetic screening. Controlled transductor cores 5 are disposed at the ends of the rigid members for voltage control. Each diode 3 is connected with a pair of series-connected fuses which have a plug-and-socket fitting with the member 2. Cooling fluid, e.g. oil or water, passes up and down the members through apertures 16 and is circulated by means of a pump through the transformer and a recooling plant. Bent metal tubing connects the beams together for the flow of coolant. Alternatively the beams may be provided with cooling fins.
Patent GB-227907-A (GB)
Title: Improved process for dyeing or printing fibres
IPC: D06P1/00
Filed: 1923-10-22
Abstract: Fibres are dyed or printed with metallic oxides by reduction by means of aldehydes, ketones, sugars, hydroxylamine, hydrazines or salts thereof, of solutions of metallic salts in alkaline media in which the precipitation of the metal is prevented by an added substance. Examples of such solutions are Fehling's, Uylander's (bismuth subnitrate, Rochelle salt and caustic alkali) and Pasteur's (copper sulphate, tartaric acid, potash and soda). The caustic alkali may be replaced by carbonates or alkaline soaps.  The metallic solution may be reduced in the bath or the fibre may be impregnated therewith and placed in the reducing bath, or for printing either the metal solution or the reducing agent may be mixed with a thickening agent. Examples show the production on silk of pinks and reds by reduction of Fehling's solution using glucose.
Patent GB-229726-A (GB)
Title: Improvements in apparatus for heating or superheating fluids
IPC: F22G1/06
Filed: 1923-10-22
Abstract: 229,726. Robertson, T. E., (Power Specialty Co.). Oct. 22, 1923. Cleaning, fluid-pressure processes for.-Apparatus for absorbing radiant heat from a furnace combustion chamber adapted to heat liquids such as oil, or vapours such as steam, or to form part of the steam-generating surface of a boiler, comprises an arrangement of metal pipe elements B to form a structure with a substantially smooth heat-absorbing face, with channels B<1> for the fluid in each element parallel to the face and separated therefrom by an integral metallic wall of substantially uniform thickness. At intervals over the area of the heat-absorbing face may be situated nozzles with radial apertures H<1> connected by a pipe system H, I for cleaning the surface by a blast of superheated steam, for example. Reference has been directed by the Comptroller to Specification 26846/03.
Patent GB-713028-A (GB)
Title: Improvements in or relating to variable inductances
IPC: H01F29/14
Filed: 1951-11-12
Abstract: 713,028. Magnetic amplifiers. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. Sept. 9, 1952 [Nov. 12, 1951], No. 26457/51. Class 40 (4) [Also in Group XXXV] In a saturable reactor comprising two magnetic cores 1, 2, with windings 3, 4 arranged so as to induce no fundamental A.C. output in a control winding 10, a third core 5 is linked with the control winding only. The purpose of the third core is to increase the inductance of the control winding and thereby to decrease the second harmonic current induced therein by the A.C. in the main windings. In the embodiment shown, the cores 1, 2 and the core 5 are respectively made of materials known by the Registered Trade Marks "DELTAMAX" and "STALLOY." In a modification, the core 5 is replaced by a strip 13 of "STALLOY" wound along the outside circumference of the two main windings but within the control winding. The third core may be provided with an air gap or with a gap of non-ferromagnetic material. The core may be formed of magnetic powder.
Patent GB-748096-A (GB)
Title: Spreadable head nail and means for driving same
IPC: F16B15/04
Filed: 1953-09-25
Abstract: 748,096. Nailing. SPOTNAILS, Inc. Sept. 25, 1953 [Sept. 25, 1952], No. 26475/53. Class 89 (3). [Also in Groups XXII and XXV] Nails, each comprising a shank 10<1>, Fig. 4, with opposed flat surfaces 21<1> and having a groove 12 at the head end providing one or two lugs 13<1> adapted to be bent outwards before or during driving of the nail to form a head, are assembled into strips with facing flat surfaces stuck together over a zone 23, Fig. 1, and used in a nail-driving-machine having a magazine 15. To facilitate bending, the shank 10<1> may have notches 24, at the roots of the lugs. The nails are driven by a blade 19 slidable in a passageway 19<1> and having an end 20 which may be pointed or round or have cusps 27 as shown in Fig. 4. Projecting ridge 22 in the magazine engages grooves 12 to guide the strip, or alternatively a ridge may be provided to engage the grooves 24. The width of the passageway restricts bending of the lugs to the width of the blade until they are clear of the machine. A nail driven into wood is illustrated in Fig. 7. Where the heads are formed before assembling the nails into strips the magazine is modified to guide the strip by engaging the nail heads.
Patent GB-1162067-A (GB)
Title: Improvements in Means for Unloading and Controlling Compressor Units
IPC: F04C28/24
Filed: 1967-06-08
Abstract: 1,162,067. Fluid-pressure servomotor systems. ATLAS COPCO A. B. June 8, 1967 [June 23, 1966], No. 26481/67. Heading G3P. A two-stage screw-action compressor 2, 3 has a throttle valve 6 in the intake duct 4 and an unloading valve 22 in a vent line 17 connected to the delivery line 12. Valves 6, 22 are biased by spring 33 to the positions shown. On starting the compressor, a vacuum is created in duct 5 and acts, via restricted line 30, line 31 and pilot valve chambers 34, 36, in chambers 28, 29 of rolling diaphragm motor 26. To load the compressor, a spool 66 is depressed to admit oil under pressure to line 46 to lift diaphragm 48 to reposition valve 37, to seat head 38 and unseat head 39. The vacuum in line 8 has moved flap 54 to the position shown and inlet pressure in duct 4 now acts via chamber 53 and lines 51, 70 in chamber 29 to move the valve 6 to an open position and the valve 22 to a closed position. Oil pressure in line 68 maintains the spool 66 in its depressed position. Flap 54 is now moved by the interstage pressure in line 8 to seat at 57 and admit this pressure to chamber 29 to maintain valve 6 open and valve 22 closed. When the pressure in receiver 14 reaches the desired level, valve 72 admits this pressure to chamber 74 to return valve 37 to the position shown. The pressure across diaphragm 26 is thereby equalized and the valves 6, 22 are returned to the unloading positions shown. Line 58 may alternately connect with the outlet duct 12. In the modification Fig. 2 (not shown), valve 60 is replaced by a solenoid operated valve (76) the coil of which is in circuit with a pressure switch (77) replacing valve 72. The compressor motor contactors (81) are in parallel with a time delay relay operating a switch in the coil circuit. In Fig.3 (not shown), the valves (37, 76) of (Fig. 2) are replaced by a solenoid operated valve (176) serving to connect chamber 29 alternately to chamber 28 and to the output of valve 52. The coil of valve (176) is in a circuit identical to that of (Fig. 2). The compressors may be screw-type and, if a single stage compressor is used, line 56 communicates with the output duct.
Patent GB-331747-A (GB)
Title: Improvements in fastenings for wearing apparel
IPC: A41F5/00
Filed: 1929-08-30
Abstract: 331,747. Wichmann, A. Aug. 30, 1929. Clips, sheet-metal; hook fastenings.-An S-form clip for use in securing together the edges of wearing-apparel has curved outer limbs b, c which extend beyond the inner limb a and terminate in thickened rounded extremities d. A tongue e may be stamped out from limb b, bent back through 180 degrees, and formed with a terminal eye f to serve as a finger-piece or for reception of a cord or band serving as means to remove the device from the dress &c. In use strips of material are sewn to the edges of the garment to provide pockets l into which the limbs b, c are hooked from the side of the strip remote from the edge of the garment.
Patent GB-1308519-A (GB)
Title: Fluid control valve
IPC: A61M39/22
Filed: 1970-06-02
Abstract: 1308519 Valves HOLLISTER Inc 2 June 1970 [16 June 1969] 26539/70 Heading F2V [Also in Division A5] Valve for use in medical-surgical irrigation apparatus, comprises a first member 18 having a wall with a flow opening 28 communicating with a passage which has side walls with ports 28a, 28b. A second co-operating member 20 has a hollow connection 60 projecting from a wall which opposes the first wall, the connection 60 having ports 62a which can be placed in or out of register with the ports 28a, 28b on relative movement to control flow through the valve. The valve is locked in an operated position by projections 76, 78 on one wall engaging in recesses 42a, 44a in the other wall. In the embodiment, member 10 is of plastics material and the walls have a diamondshaped skirt 32, 34, 36, 38 for easy attachment by heat sealing to plies of plastics material forming the post-surgical drainage pouch 10. The second member 20 has a corresponding diamond-shaped skirt 66, 70 with end ridges 72, 74 forming hand grips.
Patent GB-1057882-A (GB)
Title: Improvements in or relating to destination labels
Inventor: COX THEODORE
IPC: G09F3/04
Filed: 1962-07-11
Abstract: 1,057,882. Labels. BI-WAY BRITISH LABELS Ltd. Oct. 1, 1963 [July 11, 1962], No. 26614/62. Heading B8F. A destination label comprises a designation portion 10 having a T-shaped slit 13 therein, and a wrapping portion 11 having a partcircular head 12, which is passed through the slit 13 to secure the label, e.g. to a suitcase handle. The top of the T-slit 13 is shorter, and the stem of the T-slit is shorter, longer, or the same length as the diameter of the head 12.
Patent GB-1331720-A (GB)
Title: Method for bringing two substances into contact
IPC: B01L3/00
Filed: 1971-04-19
Abstract: 1331720 Electromagnetic mixing COMMISSARIAT A L'ENERGIE ATOMIQUE 19 April 1971 [14 April 1970] 26664/71 Heading B1C Two substances are brought into contact by placing them one above the other in a cell but separated by a liquid seal having a density greater than the lower substance when this is in a liquid state and perforating the seal with an element of magnetic material moved by a magnetic induction gradient created by means externally of the cell. In one embodiment the element is a needle 4 moved downwards by a force created by an inductance coil 5 or a magnet located at the lower part of the cell. The liquid seal may be of mercury, an alloy of mercury, methylene iodide or thallium formiate. The upper substance may be a liquid or a solid and may be a catalyst. The lower substance is in solid form when the seal is put in the cell, and to obtain fluid tightness the inside surface of the cell may be burnished or be provided with a coating having a silicone or Teflon (Trade Mark) base. The upper substance is put in the cell either before or after the lower substance is brought to the liquid state. Perforation of the seal causes it to tilt and so move below the lower substance, and when the substance comes into contact they may be mixed by. agitating the needle by varying the magnetic induction gradient. In a second embodiment, Figs. 3 and 4 (not shown), the element of magnetic material is cylindrical and is moved upwardly. In two examples the enthalpies of the reaction of two substances are measured. In one of the examples the lower substance is water, the seal is mercury and the upper substance is lithium chloride. The cell is of Pyrex (Trade Mark) and it is closed and inserted into a metallic cell which is also closed, the whole assembly being cooled to the temperature of liquid nitrogen for handling and then subsequently put into a power-compensated differential calorimeter having a programmed temperature rise. In the other example the lower substance is carbon tetrachloride, the seal is mercury and the upper substance is benzene. The cell may be made of titanium, titanium alloy, and it may be covered with a sprayed coating of copper, or it may be made of copper and have its inside surface coated with titanium, platinum or indium. The magnetic material of the element may be an alloy of iron and nickel or of cobalt and platinum. More than two substances may be brought into contact, the number of liquid seals being increased accordingly.
Patent GB-893948-A (GB)
Title: A method for the continuous production of plastic rolled products from fibre material impregnated with polymerisable substances
IPC: B32B27/00
Filed: 1960-08-02
Abstract: 893,948. Laminates and laminating. MANIFATTURA CERAMICA POZZI S.p.A. Aug. 2, 1960 [Aug. 8, 1959], No. 26670/60. Class 140. In a method of impregnating continuous fibrous webs, for example of glass fibres, with liquid polyester or other resins between substantially impermeable foils which are removed after pressing and curing the webs, strips of flexible absorbent material such as creped paper, cotton, wadding or hemp cords, or adhesive strips, are introduced between the edges of the foils to seal them prior to the pressing step. As shown, an impregnated web 1 is pressed between rollers 5 after enclosure between foils 2, 2<SP>1</SP> of regenerated cellulose, and strips 3<SP>1</SP> of creped paper are fed from reels 3 between the edges of the foils through slots in guides 6 which are shaped to collect excess resin escaping during pressing and are laterally adjustable to the width of the webs under treatment. Alternatively the strips 3<SP>1</SP> may be fed through rings whereby they are shaped to arcuate section and subsequently folded longitudinally by the rollers 5 and inserted between the foils. The guides 6 are then used for containing excess resin only.
Patent GB-661170-A (GB)
Title: Improvements in and relating to variable pitch impellers or propellers
IPC: B63H3/08
Filed: 1947-10-07
Abstract: 661,170. Variable-pitch propellers. MACHINEFABRIEK GEB. STORK & CO. N.V. Oct. 7, 1947 [Oct. 8, 1946], No. 26932/47. Class 114. In a variable-pitch propeller or pump impeller whose blades 6 are adjusted by a pressure oil operated servomoter piston 10 having a central portion 12 passing through a bore in a partition which separates the servomotor cylinder 9 from the interior space 13 of the hub which is formed as a chamber for oil leaking from the cylinder and has a free discharge therefrom, the bore in the partition has oil leakage restricting means such as a stripping-box 29. The servomotor central valve 25 is actuated by an electric motor 33 through a pivoted lever 35 to direct the oil from an inlet 23 to either the left hand cylinder space 18, through an annular space 26, or to the right hand space 17, through a tube 19 disposed within the propeller shaft 3 and secured to the piston. The tube forms the " follow-up mechanism and has leads 20 to cut off the oil flow. The chamber 13 communicates through passages 30, 47 with the oil outlet 24. An indicator 40 may be provided for the pitch. In another embodiment the central valve is disposed in the central portion 12 of the piston and is moved by the tube 19. The oil in the chamber lubricates the moving parts of the adjusting mechanism.
Patent GB-1037949-A (GB)
Title: Diode of head telluride and fabrication thereof
IPC: H01L29/24
Filed: 1965-06-25
Abstract: 1,037,949. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 25, 1965 [July 1, 1964], No. 26938/65. Heading H1K. A lead letturide PN junction diode has the acceptor concentration in the P zone not more than 10<SP>18</SP> atoms per c.c. It may be produced by withdrawing a seed crystal from a melt to provide a crystal with the desired acceptor concentration (10<SP>17</SP> to 10<SP>18</SP>) cutting a wafer, and alloying in to one surface a dot of indium or other donor material. The body may be thallium soldered to a platinum or nickel base plate and then etched. The indium alloying may be carried out at 350‹ to 400‹ C. for 10 to 20 seconds.