baber/WOPTO huggingface dataset:
Patent GB-420548-A (GB)
Title: Manufacture of relief printing forms
IPC: B41C3/06
Filed: 1933-08-16
Abstract: 420,548. Printing-surfaces. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on- Main. Germany. Aug. 16, 1933, No. 22891. Convention date, Aug. 20, 1932. [Class 100 (ii)] A relief printing-surface is made by pressing a dry or slightly wet gelatine or like relief, which may be prepared photographically, into a mass formed of or containing a polymerization product of one or more unsaturated organic compounds containing a vinyl group but not containing a conjugated system of C=C double linkages, or a condensation product thereof with an aldehyde or ketone. The product may be a polyacrylic acid derivative (e.g. an ester, nitrile, or salt), a polyvinyl halide or acetate, polystyrol, a mixed polymerization product, or a condensation product, e.g. of polyvinyl alcohol and butyraldehyde or the like. Softening-agents, pigments, dyestuffs, filling-agents, or the like, or highly polymeric substances, such as polyglycols, albuminous substances, cellulose esters or ethers, or mixed cellulose ethers or ether-esters may be added. Sheets or foils of over-chlorinated polyvinyl chloride, prepared as described in Specification 401,200, [Group IV], may be employed, and the foils, which may have a thickness of 0À05 to 0À1 mm. or more, may be fastened, either before or after impression, to a metal or other backing. In examples, a gelatine relief prepared photographically from a bichromated gelatine layer, or a gelatine relief produced in a silver halide emulsion layer by a hardening development, is supported on a plane metal plate and, while dry or slightly wet, is impressed in a hydraulic press into a foil made of polyvinyl chloride containing 65 per cent chlorine at a temperature of 80-85‹ C. and a pressure of 100-120 atmospheres ; a relief is impressed into a foil made of a mixed polymerization product from polyvinyl chloride and polyacrylic acid methyl ester at a temperature of 70-80‹ C. and a pressure of 150 atmospheres for 5 minutes. To prevent sticking, the reliefs may be treated with a solution of paraffin wax.
Patent GB-289319-A (GB)
Title: Improvements in or relating to heating devices employing the exhaust gases from internal combustion engines
IPC: F01N5/00
Filed: 1927-09-01
Abstract: 289,319. Argen Car Heater, Ltd., and Ionides, A. G. Sept. 1, 1927. Heating buildings, ships, and vehicles. - In a heating device particularly applicable to motor vehicles, part or the whole of the exhausts gases are passed through an injectar whereby cool air is drawn in, and the mixture passes through a. heater in the vehicle. The air inlet may be valve-controlled, or the injector nozzle may be valve controlled, or their relative positions may be varied to vary the amount of cool air drawn in. Means may also be provided to control the quantity of exhaust gas passing to the injector, either manually or thermostatically, and the cool air inlet may also be thermostatically controlled. The inlet A<2> to the heater A is perforated at A<3> and provided with an adjustable regulating sleeve D. The exhaust pipe E is provided with a branch H controlled by a threaded plug G having a slotted sleeve portion G<1> which may be rotated to cover partly the aperture E'. A silencer H<1> may be provided in the pipe H. Means may be provided to impart a swirling motion to the gases entering the heater.
Patent GB-966460-A (GB)
Title: Improvements in the manufacture of cylinders for reciprocating piston machines
IPC: B22D19/00
Filed: 1963-06-10
Abstract: 966,460. Casting composite cylinders. SOLO KLEINMOTOREN G.m.b.H. June 10, 1963 [June 16, 1962], No. 22983/63. Heading B3F. A cylinder liner 4 is brought to cylindrical form from a flat sheet, e.g. by rolling and a cylinder jacket is then cast around it. The gap 3 in the liner is left open and the liner is held in position in the mould by plungers 5 which cover the preformed ports 2 in the liner. The ports are preferably made by stamping the burrs formed thereby serving to key the cast metal, e.g. aluminium into position. The liner may alternatively be roughened by rolling &c. or by spraying on metal such as Al, or the sheet from which it is made may be of steel plated with Al, or of other metal on which a metal layer is applied galvanically.
Patent GB-784656-A (GB)
Title: Improvements in or relating to control means for electric current converters
IPC: H02M1/04
Filed: 1955-08-09
Abstract: 784,656. Converting; changing wave shape. SIEMENS - SCHUCKERTWERKE AKT.- GES. Aug. 9, 1955 [Aug. 9, 1954; Nov. 27, 1954], No. 22989/55. Class 38 (2). The grids or igniters of electric converters are fed from two circuits supplied with currents or voltages mutually phase-displaced and controlled by chokes or transformers regulated by variable pre-magnetization direct current. Fig. 1 shows how a grid voltage UG may be derived from transformer secondary windings 16, 18 connected in series with each other and with a source of constant negative bias voltage comprising a three-phase rectifier 51 with smoothing capacitor 52 connected across impedance 40. During negative half-cycles the transformer secondary windings are short circuited by rectifiers 34, 35, the current being limited by resistors 36, 37. Secondary windings 16, 18 are coupled respectively with primary windings 7, 9 fed from different phases T, Sofa threephase supply with current of triangular wave form produced by shaping circuits comprising chokes 1, 2, capacitors 4, 5 and saturable chokes 13, 14. The transformers may be controlled separately by D.C. windings 22, 24 and together by D.C. windings 28, 30. The instant of application of the grid voltage may be varied over a greater range than is possible when it is derived from one phase only. In a modification the voltages derived from the two phases may be developed in circuits connected in parallel, Fig. 2 (not shown). In the arrangement of Fig. 3, the grid voltage at 210, 211 is derived from two phases of the supply through rectifiers 204, 205 and saturable chokes 202, 203, connected in parallel and opposed by voltage from one of these phases through rectifier 209 and saturable choke 208. This latter choke is so regulated that while the opposing voltage is cut off over the range in which the firing point is to vary, it reduces the grid voltage at least immediately prior to the reversal of the supply voltage in the second of the two phases supplying grid voltage. Choke 208 may have an individual pre-magnetizing winding 208b and a pre-magnetizing winding 208a in series with those of all the other chokes.
Patent GB-795225-A (GB)
Title: Improvements in or relating to shaft couplings
IPC: F16D3/18
Filed: 1956-07-25
Abstract: 795,225. Universal joints. MASCHINENFABRIK BUCKAU R. WOLF. AKT.-GES. July 25, 1956 [July 25, 1955], No. 23002/56. Class 80 (2). In a universal joint transmitting axial forces, coupling members 3, 4 each having spherical supporting surfaces 10, 11, 12, 13 are connected to the ends of shafts 1, 2, the coupling members transmitting torque by external teeth 8, 9, whose central plane lies on the spherical centre M, to a corresponding internal toothing 16, 17 of a coupling sleeve 18a, 18b, the coupling sleeve being supported by spherical bearing surfaces 21, 22, 23, 24 disposed on each side of the teeth 8, 9 and lying on a spherical surface 14 which touches the pitch circle of the teeth. The spherical surfaces 10, 11, 12, 13 may be slidable on the coupling members 3, 4 and loaded by springs 26 to prevent axial shock. Lubricant may be added through an orifice 29 and is retained by the spherical seatings. In a second embodiment the halves of the coupling may be connected by an unsupported intermediate shaft.
Patent GB-1325255-A (GB)
Title: Supervising device for the supervision of a pulse serie
IPC: H04M3/08
Filed: 1971-04-19
Abstract: 1325255 Telephone exchange circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [7 March 1970] 23153/71 Heading H4K In order to check the appearance of a pulse within a given period beyond the last appearance of such a pulse in a train indicating the successful conclusion of periodic but not regular test programs in a telephone exchange, each received pulse of the train is stepped along a register, alternate stages of which provide input to an alarm device at a rate of alternation which holds the alarm inoperative, absence of a pulse being stopped along the register, or failure of the register, providing an input to the device which operates the alarm. As shown, a clock G provides drive to a stepping register S of 13 stages F1 to F13. For each clock pulse, monostables FMI, FM2 drive set followed by reset inputs to step a set condition; the devices Ea, Eb, being AND gates. The set input of the first stage F1 is obtained from terminal A on which the pulses to be checked appear. The pulses on A are passed by a blocking circuit BL provided an alarm condition has not occurred. A set input to stage F1 resets other stages F3 to F13 and the resulting set state is stepped along the register S at the rate of one stage per clock pulse. The set output of each odd numbered stage is connected to OR gate AT and applied to transistor T 1 so as to alternately energize oppositely poled relay circuits RE1, RE2, the release of which is slugged by capacitors C1 and C2. So long as a received pulse is currently in transit along register S the relays RE1, RE2, are kept energized and the blocking circuit BL has gates E1 and E2 primed so that any further pulse appearing on A will reach stage F1 and renew the process. A monostable FM3, after the stepping action of monostables FM1, FM2, opens gate E2 to reset an input bi-stable FO so that an input pulse on A is not registered twice. If the set state currently in register S clears the 13th stage before a further pulse appears on A, the relay RE2 fails to receive a re-energizing pulse and falls back to operate alarm L. Once the set state clears itself from S the blocking circuit BL denies access to any further pulses appearing at A. If the clock pulses fail and leave a set state at an odd or even stage, relay RE1 or RE2 releases to operate the alarm L. A circuit St provides for reset after an alarm has been  signalled, a monostable FM4 setting F1 after resetting F2 to simulate receipt of a pulse and give access to pulses appearing at A. If the relapse time of relay RE2 is 0À8 sees., the thirteen stages of S allow the pulses appearing at A to have a maximum spacing of 10À4 sees., any wider spacing causing alarm.
Patent GB-1575533-A (GB)
Title: Viridogrisein antibiotics
IPC: A23K20/195
Filed: 1977-06-01
Abstract: The neoviridogriseins I, II and III are obtained by aerobic fermentation of the new Streptomyces sp. P 8648 (FERM-P 3562) microorganism. These are antibiotics of the viridogrisein subgroup belonging to the mikamycinvernamycin family. They are very active against gram-positive bacteria and against the mycoplasmas. <IMAGE>
Patent GB-1506162-A (GB)
Title: Cooking ovens
IPC: F24C15/16
Filed: 1974-05-24
Abstract: 1506162 Oven shelves CANNON INDUSTRIES Ltd 7 May 1975 [24 May 1974] 23224/74 Addition to 1391770 Heading F4W An oven as described in parent Specification is modified in that each cantilever shelfsupporting member of the or each oven shelf 4 has at its free rear end a projection 9 received in a channel 3 between adjacent runners 2 and engaging an obstruction 11 when the shelf is drawn out of the oven chamber, so that the shelf has to be tilted for withdrawal from the chamber.
Patent GB-702960-A (GB)
Title: Improvements in or relating to methods of protecting against oxidation an article ofmolybdenum or of an alloy consisting mainly of molybdenum
IPC: C23D5/00
Filed: 1951-10-05
Abstract: A method of protecting against oxidation an article of molybdenum or of an alloy consisting mainly of molybdenum comprises making a slip of finely divided glass, applying the slip to the article and drying and heating the article to a temperature above 1300 DEG C. in an atmosphere containing hydrogen to fuse the glass on to the article and to effect the evolution of hydrogen silicide and its reaction with the surface of the article, probably to form molybdenum silicide.  The article may be initially coated with cobalt.
Patent GB-517824-A (GB)
Title: Improvements in dressing grinding wheels
IPC: B24B53/07
Filed: 1938-08-06
Abstract: 517,824. Trueing grinding-wheels. ATKINS, H. F. Aug. 6, 1938, No. 23261. [Classes 60 and 124] Apparatus for dressing a mounted grinding wheel, particularly a small wheel 2 such as that used in internal grinding comprises two or more steel or other suitable rollers 3, 4, Fig. 1, arranged to engage the wheel simultaneously with equal and balanced pressures. The rollers are carried on levers 8 pivoted at 9 and are moved up to the wheel against the pressure of a spring 12 by means of a hand wheel 15. In a modification the rollers 3, 4, are carried on slides moved simultaneously towards the wheel by a screw. In a further modification, Fig. 5, three trueing rollers are arranged on slides 24 mounted on a carrier 23.
Patent GB-660520-A (GB)
Title: Improvements in anti-skid devices for motor vehicles
IPC: B62D37/04
Filed: 1949-09-08
Abstract: 660,520. Anti-skid devices. HANEL, F. Sept. 8, 1949. No. 23269/49. Class 108(ii). In an anti-skid device of the type comprising a spring-loaded weight which is displaceable on a guide rod laterally of the vehicle, the weight is sleeve shaped and encloses the springs and their abutment surfaces and has its ends sealed on the guide rod by slip rings. As shown, the guide rod 1 is secured transversely on the vehicle frame and has slidably mounted thereon the tubular weight 2 having a filling plug 8 for lubricant. The weight is located by two springs 12 pre-compressed between the end caps 4 and abutments 14 secured to the guide rod 1. The end caps 4 comprise felt rings 6 and spring clips 7 to retain the lubricant, and dirt is excluded by flexible sleeves 16 secured to the guide rod and to conical metal caps 17.
Patent GB-586497-A (GB)
Title: Improvements in methods and apparatus for toughening sheets of glass
IPC: C03B27/052
Filed: 1944-11-23
Abstract: 586,497. Toughening glass. TILLYER, A., and BRITISH INDESTRUCTO GLASS, Ltd. Nov. 23, 1944, No. 23335. [Class 56] In the toughening of glass sheets by directing jets of cold fluid on to the surfaces of the heated sheets from opposite sides, the jets are arranged to be moved bodily relatively to the sheets about axes parallel with the faces of the sheets. In the form shown in Fig. 1, the frames 2, 3 carrying the jet tubes 4 are rotated by crank pins 7 about the axes A. In another form the jet tubes are oscillated about their own axes in addition to being moved bodily by the movement of the frames in which they are carried. In a third form the tubes are replaced by perforated boxes.
Patent GB-872377-A (GB)
Title: Improvements in vehicle lifts
IPC: B66F7/20
Filed: 1959-07-07
Abstract: 872,377. Garage lifts. DURA CORPORATION. July 7, 1959 [July 25, 1958], No. 23344/59. Class 78 (3). The piston-rod 6<SP>1</SP> of a garage lift hydraulic arm carries a saddle 12<SP>1</SP> provided with horizontal guide ways for a pair of transversely slidable vehicle axle or frame engaging crutches 171 which are movable by levers 25<SP>1</SP>, pivoted to the saddle at 24<SP>1</SP>, and links 27<SP>1</SP>, pivoted to the levers and crutches at 261, 281 respectively. The levers are provided with sockets 291 engageable with a detachable operating lever 321 which extends beyond the end of the vehicle. As shown in Fig. 1, the lift comprises a pair of saddles 12, 12<SP>1</SP> each provided with a pair of crutches 17<SP>1</SP> and mounted on one of a pair of rams 5, 5<SP>1</SP>, the ram 5 being adjustable along a track 3 to enable the lift to be used with vehicles of different lengths. Figs. 2-4 and 6-9 (not shown), illustrate a number of different couplings for connecting the lever 32<SP>1</SP> to levers 251.
Patent GB-742376-A (GB)
Title: An improved wide band cavity type aerial
Inventor: WILLOUGHBY ERIC OSBORNE
IPC: H01Q13/18
Filed: 1953-08-25
Abstract: 742,376. Aerials. DEPARTMENT OF AIR, SECRETARY OF. Aug. 25, 1953 [Sept. 16, 1962], No. 23489/53. Class 40 (7). A wide - band aerial system consists of a number of resonant cavities, each of which has a slot opening, means for feeding the slots and means for tuning them to slightly differing resonant frequencies inter se. In one embodiment three cavities 2 each have a slot opening 6 and are provided with adjustable capacitative tuning means 8 across the slots. The feed to the slots is by means of a strip 11 arranged close behind them and coupled at one end to transmission line 14 and at the other to earth bar 13. The point of attachment 12 of the strip to the bar 13 may be adjusted along the bar. The slots may have " key-hole " ends 7. In Fig. 3 two cavities 20 and 21 are shown with what is in effect a single slot 27 divided longways by the partition 26 separating the cavities. The feeding and tuning means are similar to those of the first embodiment. In a further embodiment the cavities 35 and 36 are formed by independent boxes and the respective slots 37 and 38 are half of the mean wavelength apart. It is stated that more than two cavities and different spacing may be used. In all the embodiments other tuning means may be used if desired, the essential feature being to tune each slot to a frequency different from the other or others of the system so as to increase the bandwidth of the arrangement as a whole.
Patent GB-689238-A (GB)
Title: Improvements in or relating to ceramic dielectrics
IPC: C04B35/468
Filed: 1949-09-12
Abstract: A composition for use in dielectrics comprises a major amount of one or more alkaline earth titanates, minor amounts of thoria and/or zirconia, and also an oxide of one or more of the alkali metals lithium sodium or potassium.  Preferred amounts, by weight, are 0.1 to 5 per cent alkali metal oxide, and 0.5 to 25 per cent thoria and/or zirconia, the latter however exceeding the stoichiometric equivalent of the alkali metal oxide. Fluorine-containing substances e.g. fluorides may also be present.  The alkali metal oxide may be present as a salt convertible to the oxide on firing, or as a preformed titanate, thorate or zirconate.
Patent GB-321473-A (GB)
Title: Improvements in and relating to the treatment of hydrocarbon material
IPC: C10G9/00
Filed: 1928-08-15
Abstract: 321,473. Robinson, T. W. S., and Ganahl, C. de. Aug. 15, 1928. Grant of Patent opposed. Hydrocarbons, dis. tilling.-Heated hydrocarbon material, such as that issuing from cracking devices, which is liable to deposit coke &c., is subjected to a cooling operation in which contact with the surfaces of solid members is substantially prevented until the temperature of the material is reduced below that at which the deposition will be promoted by such contact, generally below about 600‹ F. The hot material, injected into a chamber 1, Fig. 1 through a jet 2, is surrounded by cooling liquid from a tubular sprayer 5 which may form either a cylindrical or conical screen or distribute it uniformly as a shower over the whole cross sectional area of thechamber. Alternatively, the heated hydrocarbon. may be introduced at the top of the chamber as a conical jet disposed at one side of the vertical. axis thereof, the cooling liquid being introduced as a similar jet disposed at an acute angle to thehydrocarbon. jet. In another modification, the upper portion 8, Fig. 5, of the chamber is wider than the lower portion and the cooling liquid trickles down the walls covering them completely and only mixing with the, heated material when the latter reaches a. zone adjacent the base of the chamber.
Patent GB-1312605-A (GB)
Title: Aerating device
IPC: A01K63/04
Filed: 1971-04-19
Abstract: 1312605 Aquaria METAFRAME CORP 19 April 1971 [18 March 1970] 23597/71 Heading A1A [Also in Division Fl] An aerating device 40, particularly for aquaria, comprises a conduit 58 through which liquid flows to entrain air from a chamber 48, the air liquid mixture passing through a discharge chamber 52, the air entering through a filter 88. The amount of air is regulated by a needle valve 90. Although the device 40 is shown as being formed by two co-operating housings 44, 46, a single moulding may be used. In an aquarium 10, water 36 flows through, a siphon tube (not shown) to a filter receptacle 14, an apertured platform (not shown) at the bottom of the receptacle 14 and through an electrically driven centrifugal pump 24 and pipe 28 to the device 40. The receptacle 14 is hooked to a rim 18 of the aquarium tank by a flange 16.
Patent GB-1180883-A (GB)
Title: Photographic Compositions and Processes
Inventor: FOTLAND RICHARD A
IPC: G03C1/675
Filed: 1968-05-17
Abstract: 1,180,883. X-ray film. HORIZONS Inc. 17 May, 1968 [22 Sept., 1967], No. 23600/68. Heading H5R. [Also in Division G2] A photosensitive composition comprises (i) a leuco dye base which is capable of forming a coloured product either with a free radical or another product produced upon exposure to radiation shorter than 4000 A of (ii) either an organic halogen compound of formula A-C-X 3   where A is hydrogen, chlorine, bromine or iodine or an unsubstituted or substituted alkyl, aryl or aroyl radical and X is chlorine, bromine or iodine, or a heavy metal halide and (iii) a polymer in which (i) and (ii) are dissolved or dispersed; the composition being treated to remove molecular oxygen, e.g. by placing in a vacuum or an oxygen-free atmosphere. The composition is sensitive to ultra-violet radiation, hard and soft X-rays, gamma rays, electrons, protons and alpha particles. Specified leuco compounds (i) are leuco di- and tri-phenyl methane, leuco xanthene, selenoxanthene and thioxanthene, leuco acridine and leuco anthracene. Specified heavy metal halides are lead and cadmium bromide and iodide. The composition may also contain an anti-foggant such as triphenylarsene, triphenylstibine or m-dimethylaminophenol or an X-ray absorbing material such as mercury, lead, bismuth, barium or tungsten. In the examples, the composition is coated on a support, placed in a vacuum of 10<SP>-6</SP> mm. Hg or in a nitrogen atmosphere and image-wise exposed to an electron beam or X-rays and developed by a uniform exposure to red light to produce a dye image.
Patent GB-1294414-A (GB)
Title: Method of controlling continuous rolling of metal strips
IPC: B21B37/26
Filed: 1971-04-19
Abstract: 1294414 Rolling NIPPON KOKAN KK 19 April 1971 [7 March 1970] 23718/71 Heading B3M The variation in the tension of a metal strip when the gauge of the strip is to be varied at a high rolling speed in a continuous tandem rolling mill is minimized by varying the rolling speeds of a particular mill stand and of succeeding and/or preceding mill stands by the same increment as each other when a gauge varying part of the metal strip reaches the particular mill stand and then successively varying the rolling speeds of the succeeding and/or preceding mill stands by the same increment as each other thereby finally varying the rolling speeds of all mill stands to the speeds required to produce a strip of a given gauge.
Patent GB-392398-A (GB)
Title: Improvements in or relating to composite motion pictures
IPC: G03B15/08
Filed: 1932-08-24
Abstract: 392,398. Composite photographs. WARNER BROS. PICTURES, Inc., Burbank, Los Angeles, U.S.A.-(Assignees of Jackman, F. W. ; 527, North Hillcrest Road, Beverly Hills, California, U.S.A.) Aug. 24, 1932, No. 23735. Convention date, Sept. 8, 1931. [Class 98 (ii).] Dye-toned transparencies for use in making composite motion pictures are so treated as to remove substantially completely all traces of dye from the high lights, e.g. by repeated washing in clean water. As shown, the composite picture is produced by photographing action 7 illuminated by yellow light, in front of a blue background 9 illuminated by blue or white light, upon a film 6 through a yellowtoned, positive transparency 1 of a background component, the transparency having the high lights free from all traces of dye.