baber/WOPTO huggingface dataset:
Patent GB-517024-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P9/00
Filed: 1938-07-11
Abstract: 517,024. Igniting systems. BRITISH THOMSON-HOUSTON CO., Ltd., and KNIGHT, H. DE B. July 11, 1938, No. 20499. [Class 7 (iv)] A voltage insufficient to cause a spark is applied to the gap of a sparking-plug, discharge being effected by the application of an auxiliary voltage, produced for example, as described in Specifications 472,283, [Group XXXV], 472,688, 486,307 and 490,392.
Patent GB-139416-A (GB)
Title: Improvements in electric couplings
IPC: H01R4/50
Filed: 1919-08-20
Abstract: 139,416. Fuller, E. H., and Ross, Courtney, & Co. Aug. 20, 1919. Cable and wire terminals. - A terminal coupling comprises a serrated pin a, which is pushed into the core of a cable, and a tube sheath c which fits over the insulation and prevents access of moisture to the core. The tube c is pressed together at one end to fix the coupling pin and to form a junction plate.
Patent GB-777961-A (GB)
Title: Improvements relating to the desulphurisation of phenolic materials
Inventor: WINTERS GODFREY
IPC: C07C37/86
Filed: 1954-07-14
Abstract: Phenolic materials are desulphurized by passing them in the vapour phase with hydrogen over a metal oxide or metal salt catalyst at an elevated temperature whereby sulphur is removed from sulphur compounds present as impurities and is converted to hydrogen sulphide.  Catalysts specified are mixtures of oxides of cobalt and molybdenum, or cobalt molybdate, either alone or incorporated with a support such as alumina.  During the desulphurization, the catalyst reacts with hydrogen sulphide so that the oxygen is partly replaced by sulphur; it is stated that this results in increased catalyst activity.  The catalyst may be regenerated after long use by conventional means.  The desulphurization may be effected by passing the vaporized phenolic material with hydrogen at usually less than 3 atmospheres absolute pressure and at 200 DEG  to 300 DEG  C. over the catalyst and condensing the desulphurized phenolic material. Residual hydrogen sulphide may be removed from the product by air blowing.  The gases from the desulphurization containing hydrogen sulphide and excess hydrogen may be treated by conventional means to remove hydrogen sulphide and the purified hydrogen is then recycled. In examples, xylenols and o- and m-cresols are desulphurized by passage with hydrogen at atmospheric pressure over a catalyst of cobalt molybdate on alumina.
Patent GB-359002-A (GB)
Title: Improvements in or relating to electric tea-kettles and the like
IPC: A47J27/21
Filed: 1930-07-08
Abstract: 359,002. Electric kettles; wire resistances. RODGERS, C. E., 101, Branston Street, Birmingham. July 8, 1930, No. 20596. [Class 39 (iii).] Heating elements having a closelycoiled wire inserted into, and expanded against the inner wall of, a tube lined with insulation, are adapted as immersion heaters and provided with a terminal cap or block closing the end of the tube and secured by a bolt passing axially through the tube and coil. The tube may form a selfcontained heater or be fitted to a kettle &c. Two tubes b, Fig. 2, side by side in a kettle, are closed at one end c, Fig. 4. A wire h<1> temporarily coiled on a former is expanded against a liner j in each tube, the former being removed and the wire held in position by a washer p. The block f carrying terminal plugs g and closing the ends of the tubes b is secured by two bolts d.
Patent GB-971516-A (GB)
Title: Improvements relating to electromagnetically operable devices
Inventor: ASH FRANK STANLEY
IPC: H04M17/02
Filed: 1962-05-29
Abstract: 971,516. Escapement mechanisms. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 29, 1963 [May 29, 1962], No. 20634/62. Heading F2X. [Also in Division G3] Rotation of a shaft 18 by an externally applied force is controlled by an escapement in which an escapement wheel 19 fixed to the shaft 18 is allowed to rotate through one tooth pitch each time a coil 1 wound on a hollow magnetic core 2 is energized and de-energized by an applied electrical impulse. The coil 1 has magnetic pole-pieces 3, 4 extending radially at its ends, the polepiece 4 forming part of a side plate 6 which, with a side plate 7, supports the escapement. An armature 5, comprising soft iron parts 5a, 5c, and a copper part 5b, is carried by a plate member 10 fixed to a rocking shaft 11 and having a counterbalance weight 13 at its other end. An escapement arm 12 also fixed on the shaft 11 has pins 21, 22 engageable by the teeth of the escapement wheel 19. When the coil 1 is energized, the armature 5 is moved against a spring 14 from a position resting against a stop 16 to a position contacting the polepieces 3, 4, thus rocking the escapement arm 12 and allowing the escapement wheel 19 to rotate half a tooth-pitch. When the coil is deenergized the armature returns to the stop 16 and the escapement wheel rotates a further half of a tooth-pitch. The escapement may be used in a coin-freed meter.
Patent GB-1386147-A (GB)
Title: Aqueous interpolymer emulsion
IPC: C09J131/04
Filed: 1972-05-03
Abstract: 1386147 Plywood AIR PRODUCTS & CHEMICALS Inc 3 May 1972 [3 May 1971] 20641/72 Heading B5L [Also in Division C3] Plywood may be made by using as the adhesive to bond the layers together, an aqueous thermosetting emulsion which comprises an acidic curing catalyst and an aqueous emulsion of a curable copolymer containing 5-20 wt. per cent of polymerized N-methylol acrylamide, 1-3 wt. per cent polymerized acrylic acid and the balance being essentially polymerized vinyl acetate units, the emulsion containing 40-60 wt. per cent of water and being substantially devoid of solid particles having a size larger than 150 mesh (U.S. Sieve Series). In the example the emulsion contains aluminium chloride as the curing catalyst and methyl cellulose or hydroxyethyl cellulose as thickener in addition to the polymer, and is used to produce 3-ply sheets of <SP>1</SP>/ 16  inch birch veneer, the assembly being cured for 15 minutes at 225 F. and 200 p.s.i.
Patent GB-478816-A (GB)
Title: Improvements relating to centrifugal machines for the separation of solid and liquidmaterials
IPC: B04B1/12
Filed: 1936-07-25
Abstract: 478,816. Centrifugal machines. HARVEY, C. E. July 25, 1936, No. 20656. [Class 23] Solids separated from liquids in a centrifugal machine are discharged from the bowl through peripheral apertures controlled by rotary star valves actuated continuously or intermittently. The outer housing 1 supports a journal bearing 7 and a thrust bearing 5 to carry the vertical shaft 6 driven by the belt 9 or by an electric motor mounted on the housing cover. The shaft carries the conical rotor 10 and a deflector 13 located just below the inlet 15 to the rotor. A discharge opening 14a for liquids is formed in the base-plate 14 of the rotor. Sloping walls 34, Fig. 3, form tapering mouths for the separated solids to pass through to the ducts 18 which are terminated by rotary star valves 19 having four pockets. These valves are slowly rotated while the machine is working, through reduction gearing from the gear ring 31 on the rotor neck. The material is supplied through the hopper 16 and is spread in the rotor by the deflector 13. The separated liquid is discharged through the opening 14a to the chamber 36 and the discharge pipe 37. The solids pass into the ducts 18 and one of the valve pockets. As each valve rotates, the deposited solids are carried past a perforated or slotted wall 21 so that any liquid remaining with the solids can be expelled into a spoutlike deflector 22 from which it passes to the trough 23. The valve pocket is then turned to discharge the solids through an aperture in the valve casing 20 against the inner surface of the inner wall of the trough 23 from which it drops to the hopper 26. A modification shown in Fig. 7 and used where fine solid particles are to be separated from liquid, has a number of discs 39, the larger of which are placed lower than the others in the bowl. This causes a high mean peripheral speed to be imparted to the material as it travels through the rotor. A slowly rotating table of gauze may receive the solid material as it is discharged.
Patent GB-906704-A (GB)
Title: Improvements in or relating to paper feeding apparatus
Inventor: PIPER RONALD NEWMAN
IPC: B41J17/00
Filed: 1959-06-15
Abstract: 906,704. Typewriters &c. INTERNATIONAL COMPUTERS & TABULATORS Ltd. March 30, 1960 [June 15, 1959], No. 20466/59. Class 100 (4). Paper feeding apparatus for a stylus type-printing mechanism has webs 1, 2 drawn by tractor feed devices over a platen 3 together with a transfer media web 4. The transfer web 4 is released from a roll 5 by a feed roller 24 operated by a solenoid 29 during spacing operations and is drawn over the platen during character printing by the friction this causes between the webs 1, 2 and 4. The webs 1, 2 are tensioned before they reach the platen by passing over rollers 10, 11 having torsion-springs 14, 15 where the webs are engaged by rollers 16, 17 mounted on arms 18, 19 rotatable on spindles 20, 21 provided with torsion springs by which the desired web tension can be pre-set. Specification 707,736 is referred to.
Patent GB-1192512-A (GB)
Title: Low Profile Broad Band Microwave Antenna System
Inventor: YOUNG DAVID W
IPC: H01Q1/28
Filed: 1968-05-01
Abstract: 1,192,512. Aerials. LOCKHEED AIRCRAFT CORP. 1 May, 1968, No. 20691/68. Heading H4A. A microwave aerial system comprises a length of rectangular waveguide 10, Fig. 1, which is coupled at one end to a feeder waveguide 16, and at the other end to an absorptive terminating load 18. A portion of the broad wall of the waveguide 10 is reduced in thickness to provide a parallelepiped shaped recess, along the face of which is formed an array of small coupling holes 32, having dimensions less than those normally required to support waves of the frequency of cut-off of the waveguide 10. A thin rigid conductive plate 34, Fig. 2, is fixed to the unreduced portion of the waveguide 10, so that it extends above the holes 32, and forms a slit type radiating aperture 40. The array of holes 32 functions as a leaky waveguide, and the system has broad-band properties. Scanning maybe effected by varying the input frequency to the waveguide 10. Such an aerial system may be inserted in a slot 50, Fig. 3, in the tip of a leading edge spar 52 of a helicopter rotary wing 54. The narrow waveguide wall 281 is shaped as shown for continuing the aerodynamic contour of the spar, and a dielectric boot 56 is provided for protecting the radiating aperture 40<SP>1</SP>. Scanning is effected by the rotation of the spar during operation of the helicopter.
Patent GB-1429224-A (GB)
Title: Electric motor
IPC: H02K1/14
Filed: 1973-05-01
Abstract: 1429224 Core constructions for dynamoelectric machines SAIA AG 1 May 1973 [9 May 1972] 20722/73 Heading H2A The stator magnetic circuit of an electric motor, including the magnetic return path between stator poles of opposite polarity, is made of two portions only, the portions having axially extending poles adjacent the motor rotor and being identical as to the disposition of poles thereon and having identical parts for positioning the portions relative to one another and for connecting them together. As shown, the two stator portions may each have a group of main poles 6 and a group of auxiliary poles 5. Each portion has slots 7 and an axially extending part 10 which has lugs 8 and forms the magnetic return path between the stator portions. In the assembled motor, the lugs 8 of one portion engage the slots 7 of the other. A coil carrier mounted between the stator portions has lugs 9 for mounting the motor on a support. The motor includes a short circuit disc associated with the auxiliary poles of one or both stator portions. Formulae are given for determining the relative angular spacing of the poles on the stator portions. In a modification, Fig. 1 (not shown), the auxiliary poles are omitted. In a further modification, Fig. 4 (not shown), each stator portion has two groups of main poles and two groups of auxiliary poles.
Patent GB-997908-A (GB)
Title: Improvements in or relating to volume compression circuits
Inventor: FISHER KEITH LOVETT
IPC: H03G7/06
Filed: 1962-05-30
Abstract: 997,908. Volume compression. PYE Ltd. May 21, 1963 [May 30, 1962], No. 20734/62. Heading H4R. A volume compression circuit to limit the modulation level in a radio transmitter, comprises a potential divider in the input of an amplifier A, Fig. 1, the potential divider being formed by the resistor R1 and the emitter collector impedance of transistor VT1, the transistor bias being such that it is normally cut off but is switched on by the D.C. voltage applied to its base when the amplifier output voltage exceeds a predetermined level, corresponding to the required maximum modulation level. The control voltage to the transistor V77 is derived from the output of the amplifier A via one secondary winding 52 of a transformer feeding the modulation stage of a transmitter via the secondary Sl. An RF filter LI, C5, C6, is provided to remove any RF fed back from the modulation stage, the audio frequency signal being rectified by diode D1 and filtered by R5, C3, C4, the time constant of the filter being adjusted by R6 to pass the audio envelope signal to control the impedance of transistor VT1.
Patent GB-1099042-A (GB)
Title: Face sealing means
IPC: F16J15/38
Filed: 1965-05-17
Abstract: 1,099,042. Mechanical seals. FLYGTS PUMPAR A.B. May 17, 1965 [May 28, 1964], No. 20795/65. Heading F2B. In a mechanical seal for a rotary shaft 1 the parts rotatable with the shaft are carried by a pin 2 which is inserted into the shaft and projects therefrom and is locked in position by a sleeve 3 that fits over the shaft and carries a sealing ring 6. The pin 2 engages a recess 13 in the sleeve 3 and is held radially by a flap 14 bent outwardly from the sleeve. The ring 6 may be of carbon and is urged into sealing contact with a surface 9, through which the shaft extends, by a spring 4 compressed between the sleeve 3 and a cup 8. A rubber packing ring 7 is compressed between the ring 6 and the cup 8 to prevent leakage along the shaft. A projection 12 on the ring 6 engages a slot in the cup 8 and a slot 5 in the sleeve 3 is engaged by a projection 19 in the cup 8 so that in use the cup and ring are rotated with the sleeve. In a modification, Fig. 2 (not shown), an inner sleeve (3b) has a recess (13) through which the pin (2) projects to abut an outer sleeve (3a).
Patent GB-139450-A (GB)
Title: Improvements in resilient wheels
IPC: B60B9/22
Filed: 1919-08-25
Abstract: 139,450. Darche, A. A. A. Feb. 22, 1919, [Convention date]. Tread bands, projections, and surfaces. - The tread band 34 is formed of curved strips 35 of hard rubber alternating with strips 36 of softer rubber, both resting on a band 37 of hard rubber. Side strips 38 of hard rubber protect the tread from side shocks.
Patent GB-898748-A (GB)
Title: Cylinder printing machine
IPC: B41F3/58
Filed: 1958-06-30
Abstract: 898,748. Printing-machines. SCHNELLPRESSENFABRIK KOENIG & BAUER A.G. June 30, 1958 [Nov. 19, 1957], No. 20828/58. Class 100(2) A cylinder printing machine has a type bed provided with a spur rack in constant mesh with a toothed wheel which is mounted on a freely rotatable hub or casting and in which the reciprocatory motion of the type-bed is effected by the rotation of the drive wheel in opposite directions caused alternately by one of two gear mechanisms mounted on separate shafts each provided with driving and braking means which directly engage with means mounted on the freely rotatable hub or casting to effect acceleration and retardation of the type-bed drive wheel in both direction of rotation. As shown, the type-bed 50 has a rack 49 in continuous engagement with a type-bed driving gear provided with teeth 5. The driving gear comprises a casting 1, Fig. 2, having trunnions 3 and 4, gear segments 12, 13 being secured to a flange of the casting 1. The segments 12, 13 are alternately engaged by segments 21 and 28, Fig. 3, secured respectively to pinions 17, 25 driven in opposite directions to provide respectively a quick return stroke and a slower printing stroke of the bed. The pinion 25 carries drive rolls 26, 27 which co-operate with hardened steel face flanks 8 and 9 secured to the casting 1 of the type-bed drive gear. Similarly, the pinion 17 carries drive rolls 19, 20 for engagement with face flanks 10 and 11. In operation, the roll 26 engages the flanks and moves the type-bed driven gear at increasing speed until the segment 28 engages the segment 13, thus moving the type-bed at uniform speed, the bed being subsequently slowed down, before reversal, by the roll 27 engaging the flank 9. The bed is driven in a similar manner by the rolls 19 and 20 and segment 21.
Patent GB-604587-A (GB)
Title: Improved fibrous material for roofing, flooring, insulation and other purposes
IPC: D21J1/08
Filed: 1944-10-26
Abstract: 604,587. Coated fabrics. HJELTE, S. M. Oct. 26, 1944, No. 20829. Convention date, Oct. 19, 1943. [Classes 96 and 140]. Addition to 529,108, [Group V]. Fibre board, or similar stiff fibrous backing material having felted fibres is impregnated or coated with a mixture of bituminous matter and the waste product obtained as a precipitate in the causticization of soda with milk of lime in the soda or sulphate process of paper pulp manufacture to produce slabs or sheets suitable for roofing, insulating foundation walls, outside walls and other purposes. The coating mixture may be stiffer and of higher flash point than that of the parent Specification, as by use of harder asphalt or pitch, or by an increased proportion of the waste product along with coal tar, since in the present case the sheets produced need not be bent; and this stiffer mixture may be applied through nozzles to the boards whilst the latter are carried along by a conveyer. Crushed material such as talc or slate may be embedded in the surface coating. Specification 562,879 is referred to.
Patent GB-1352396-A (GB)
Title: Contamination detectors
IPC: G01N27/66
Filed: 1971-04-19
Abstract: 1352396 Alarm systems SCI SYSTEMS Inc 19 April 1971 [2 Feb 1970 13 Aug 1970] 20839/71 Heading G4N [Also in Divisions G1 and H1] In a contamination detector, e.g. for detecting the contaminants in the atmosphere resulting from a fire, an electrical signal which varies with the concentration of the contaminents is provided and an alarm is generated when the rate of change of the signal attains or exceeds a predetermined value. As shown in Fig. 1 and Fig. 3 (not shown), an ionization detector 10 is connected to a pair of amplifiers 42, 44, a gate 46 being provided in a feedback loop of amplifier 44. The gate is periodically opened and closed by a generator 54. During the closed period the output of amplifier is driven to zero. However, during the open period, if the output of amplifier 44 reaches a preset valve, a latch circuit 50 is operated to cause energization of an alarm device 51. In an alternative, Fig. 6, a pair of FET's 214, 216 are connected to an ionization detector 202, the sources of the FET's being connected to the inputs of a differential amplifier 222. This amplifier is provided with a feedback loop including an integrator 223 having a long time constant. If the output of amplifier 222 reaches a preset value, a transistor is operated after a delay to trigger an SCR 266 which energizes a relay 270 to operate an alarm device 274. Figs. 7 and 8 (not shown), disclose a simplified version of the Fig. 6 embodiment. Means are provided to prevent production of an alarm in response to high-frequency components in the electrical signal. Means are also provided to test the power supply and indicate a shortcircuit. As shown in Fig. 2, the ionization detector consists of a perforated metal casing 14 having an insulating end cap 12, the casing containing an electrode 24, a pair of #-particle emitters 18, and a circuit board 20. In an alternative, a light source and photosensitive resistor may be utilized as the detector, Fig. 10 (not shown).
Patent GB-1472929-A (GB)
Title: Windscreen wipers
IPC: B60S1/38
Filed: 1974-05-10
Abstract: 1472929 Windscreen wipers SOC ANON POUR L'EQUIPEMENT ELECTRIQUE DES VEHICULES SEV MARCHAL 10 May 1974 [3 Dec 1973] 20844/74 Heading A4F A windscreen wiper comprises a wiper arm 1 having a female end 1a to engage a pin 3 extending between two parallel wings of a central body 3 of a curved moulded blade holder also having, at each end of the central body 3, a main clip 4, 4a and a main holder element 5, 5a the ends 4b, 4c and 5b, 5c of which are bent as shown to provide holding portions to carry the wiper blade 8, the holding portions of each main clip 4, 4a, Fig. 2, comprising a tubular, e.g. truncated pyramidal, portion of right quadrangular section defined by walls 62-65, the walls 62, 63 being extended to terminate in elbows 68, 69 to grip an attenuated zone 8c of the blade, and the walls 64, 65 being joined by a bridge member 70, preferably having a convex surface, to bear on the back of the blade. The holding portions of the holder elements 5, 5a may be similarly formed.
Patent GB-1353243-A (GB)
Title: Production of coatings
IPC: G03F1/54
Filed: 1971-04-19
Abstract: 1353243 Depositing metal oxides; coating glass RANSBURG CORP 19 April 1971 [2 Feb 1970] 20858/71 Headings C1A C1N and C1M [Also in Division B2] A metal oxide is deposited on a heated substrate by thermal decomposition of a vaporous metal organic compound, the vapour being electrostatically charged to promote movement towards the substrate. The metal may be Ti, Al, or Zr, and the metal compound may be tetraisopropyl titanate, Al ethoxide or isopropoxide, or tetra-n-butyl zirconate. The vapours may be diluted with N 2 , air, CH 4 , or Ar. Suitable apparatus comprises a knife edge device with an elongated slot for feeding the vapours, situated parallel and transverse to a moving sheet substrate, the device being connected to a supply of D.C. and the substrate being grounded. The substrate is preferably sheet glass, and may be at a temperature of 350-600C. Various conventional glasses are listed as suitable substrates. The glass may be coated during manufacture, prior to an initial cooling below 350 C.
Patent GB-518216-A (GB)
Title: Apparatus for regulating electric arcs
IPC: H05B31/00
Filed: 1938-07-14
Abstract: 518,216. Arc lamps. PATHE CINEMA ANCIENS ETABLISSEMENTS PATHE FRERES. July 14, 1938, No. 20888. Convention date, July 19, 1937. [Class 39 (i)] A constant-speed motor drives each of the two electrode holders through a transmission device, the ratio of which is manually adjustable. In the form shown, a cam 22 driven through gearing from a motor 18 reciprocates members 25 and 35. Member 25 engages the arm 28 of a free wheel mechanism 29 which drives the spindle 14 feeding- the positive electrode, and the rate of feed is adjusted by a screw 32 against which the member 29 is urged by a spring 30. The member 35, the stroke of which is also adjustable, drives a worm and wheel 39, 40 through a second free wheel mechanism 37, the gear 40 being frictionally coupled to a shaft 43 feeding the negative electrode by means of a pinion 47 and rack 48. A knob 46 is mounted on the shaft 43 for manual adjustment. If the feed of the negative carbon becomes too fast, it may be impeded by a pawl 63, Fig. 4, engaging teeth on the member 37, the pawl becoming operative through a relay 61a when the tip of the carbon 2 moves out of the focus of the lens 59 co-operating with a photo-electric cell 61 disposed against an aperture 60a in the lamp casing.