baber/WOPTO huggingface dataset:
Patent GB-1378099-A (GB)
Title: Deflection electrode assembly for an ink jet type printing device and a method for manufacturing the same
IPC: B41J2/09
Filed: 1973-02-20
Abstract: 1378099 Ink droplet printers CASIO COMPUTER CO Ltd 20 Feb 1973 [28 Feb 1972] 8165/73 Heading B6F A deflecting electrode assembly for ink droplet printers comprises an insulating substrate 6 having an opening 7, a first group of electrodes 13a, 13b, 13c in pairs each defining a passageway 15a, 15b, 15c therebetween, and a second group of electrodes 14a, 14b, 14c in pairs each sandwiching a pair of first electrodes and further defining the passageways, the electrodes being attached to the substrate 6 and forming paired vertical and horizontal deflecting electrodes. The electrodes are etched from a single sheeet 8 of eleotroconductive material, the first step in the process of manufacture leaving the margins of the plate intact, the sheet then being attached to the substrate 6, and finally opposite peripheral margins of the sheet being cut away from the plate.
Patent GB-1390382-A (GB)
Title: Steam-cracking process
IPC: B01D51/10
Filed: 1972-02-23
Abstract: 1390382 Cracking EXXON RESEARCH & ENG CO 23 Feb 1972 [1 March 1971] 8245/72 Heading C5E A hydrocarbon feedstock, e.g. naphtha, is steam-cracked to unsaturated products, and the cracked material is cooled to below 850‹ F. in a heat exchanger, and further cooled to a temperature in the range 500‹ to 650‹ F. by quenching with a steam-cracked gas oil boiling between 350‹ and 750‹ F. and a steam-cracked distillation residue boiling between 550‹ and 800‹ F. A liquid phase is maintained on the wall of the transfer line to prevent fouling and plugging and so to increase useful heat recovery. The quenched material may be fractionated, and appropriate fractions, after cooling, may be used in part as the quenching oils.
Patent GB-694531-A (GB)
Title: Improvements in or relating to electronic sawtooth oscillation generators
IPC: H03K4/43
Filed: 1951-04-10
Abstract: 694,531. Saw-tooth generating circuits. GENERAL ELECTRIC CO., Ltd., and TOWNSEND, G. B. March 24, 1952 [April 10, 1951], No. 8318/51. Class 40 (vi). A saw-tooth generator of the type in which a capacitance is charged through a resistance and discharged rapidly through a valve, has a positive voltage connected in series with the discharge path to prevent the anode voltage of the valve falling to a value at which the anode resistance is high, means being provided to prevent the capacitor charging reversely. The capacitor 2 in the circuit shown is charged through resistor 1 and periodically discharged through valve 8 and the required positive voltage is developed across a resistor 6 of a potentiometer 5, 6, reverse charging being prevented by a diode 10. The saw-tooth output is applied to the deflection coils of a television set through an amplifier valve 15 which is periodically rendered non-conducting by frame synchronizing pulses derived from the input at 16 by integration in circuit 17, 18. The resulting positive pulse at the anode of valve 15 renders valve 8 conducting to discharge the capacitor 2. A capacitor 21 is charged negatively during the flyback by grid current and maintains valve 8 cut off during the succeeding long flank. Resistors 22, 23 and 24 adjust the frequency amplitude and waveform of the saw-tooth output. It is suggested that the discharging valve 8 alternatively could be rendered periodically conductive by connecting it in a blocking oscillator circuit.
Patent GB-378886-A (GB)
Title: Improvements in heaters for fluids or solids
IPC: F24H9/20
Filed: 1931-03-18
Abstract: 378,886. Heating liquids by electricity. WHITBY, E., 33, Cropthorne Court, Maida Vale, London, PEDLER, I. A. D., 5, Hampstead Road, Brislington, SELSTON, E. J., York House, Morley Road, Staple Hill, both in Bristol, LESTER, L. R., Rest Harrow, Old Bracknell, Berkshire, and NEWMAN, A. J., Northacre, Stoke Hill, Stoke Bishop, Bristol. March 18, 1931, No. 8363. [Class 39 (iii).] The supply of make-up water or other liquid to a storage tank 2, Fig. 1, in which it is heated by an electric heater 9 controlled by a maximum temperature thermostat 10 is so regulated by a thermostat 14 immersed in the liquid as to maintain the temperature of the stored liquid constant. The draw-off tap 8 is placed at the lower part of the tank. The thermostat 14 operates a valve 12 at the upper end of a tube 11, through which liquid flows into the storage tank from a feed tank 4. The inlet valve may be operated electrically under the control of the thermostat 14. The thermostat 14<11>, Fig. 3, operates the inlet valve 121 by a rod 13<1>, which carries the bridge piece 20 of the switch controlling the circuit of the heating elements 9<1>. The feed tank may be dispensed with, the valve through which liquid is admitted to the tank being controlled by a float in the tank as well as by a thermostat. Powdered or flaky material may be melted in a separate heating chamber before entering the storage tank, or the material may be fed through the inlet valve in solid form and melted in the tank.
Patent GB-374939-A (GB)
Title: Improvements in or relating to resilient mechanical couplings or supports
IPC: F16F13/02
Filed: 1931-03-18
Abstract: 374,939. Spring mountings. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Stoller, H. M. ; 63, Pollard Road, Mountain Lakes, New Jersey, U.S.A.) March 18, 1931, No. 8365. Convention date, March 20, 1930. [Class 108 (iii).] A resilient support for machinery upon a frame or floor, comprises a spigot 5, as shown in the Figure, projecting from one member 11, a helical compression spring 1 surrounding it and lying in a cylindrical recess in the other member 8, and felt or other soft damping-pads 2, 3 interposed between the spring and the spigot and wall of the recess respectively and bearing against the spring coils. The spigots 5 are secured by screws to the baseplate 11 and the members 8 are screwed into the motor base 20. The spring 1 bears against the shaped top 12 of the socket 8, the upward movement of which is limited by a collar 7 pinned on the spigot 5. In a modification, the motor base 20 is itself formed with recesses to receive the springs &c. The springs are preferably designed to have a resonant period below the normal frequency of the motor vibrations.
Patent GB-273020-A (GB)
Title: Improvements in or relating to electric heaters
IPC: H05B3/00
Filed: 1926-03-27
Abstract: 273,020. Frenot, E., and Gronier, M. March 27, 1926. Electtric radiators and warmers.-Heating units consist of wire wound on a hollow insulating core and embedded in plastic material adapted to serve as a store of heat, so that the units can be switched on and off by an adjustable timing switch, the temperature being maintained by the heat stored in the plastic material. The wire 2 wound on the core 1 is embedded in a layer 2<a> of refractory material composed of kaolin, magnesia and sodium borate, and is enclosed in an outer layer 3 of kaolin and yellow ochre to which sodium borate may be added. Round this layer is an insulating sleeve 4, which may be formed of a coil of asbestos cord, and the whole is enclosed in a sheet-metal casing 5, with closely-fitting endpieces 7, 8. The edge 6 of the casing 5 is turned over the piece 7 which carries the terminals. A number of such units may be arranged in a casing E, Fig. 4, shaped as shown, and may be operated in succession by a timing switch as described above ,or they may be disposd about the place to be heated and operated in the same way. A single unit may be used as a bed or foot warmer and may be provided with a handle.
Patent GB-545249-A (GB)
Title: Improvements in or relating to the manufacture of granule coated webs
IPC: B24D11/00
Filed: 1940-05-09
Abstract: 545,249. Granule-coated fabrics. CARBORUNDUM CO. May 9, 1940, No. 8407. Convention date, Sept. 22, 1939. [Class 60] In a granule coated web 2 having granules 4 adhesively attached and further supported by additional adhesive 5, the latter forms mounds 6a on the bars of the granules and extends principally up one side 7a thereof, but the peaks of the granules are free of adhesive. The process and apparatus are described in Specification 545,248.
Patent GB-685448-A (GB)
Title: Improvements in or relating to gas cleaners
IPC: B01D45/02
Filed: 1949-03-28
Abstract: 685,448. Centrifugal machines. SOC DE CONSTRUCTIONS MECANO-THERMIQUES. March 28, 1949 [April 3, 1948], No. 8421/49. Class 23 An apparatus for the centrifugal separation of dust from gas comprises plates 36, 37, 38, 39, Fig. 5a, which form lamellar inlet ducts 41, 43 in parallel leading to a hopper 7 and lamellor outlet ducts 42, 44 contiguous with the ducts 41, 43 and bounded by the plates 37, 38 and 39, 40 respectively; the direction of gas flow being such that in passing from inlet duct 43 to the contiguous outlet ducts 42, 44 the gas skirts edges 45, 46 and assumes a path of such curvature that the dust is projected into the hopper 7. Metal plates (not shown) intermediate adjacent plates serve to narrow the ducts. Two or more units may be arranged in series and dust is removed from the plates by a rake. An auxiliary fan draws dusty gas from the hopper and delivers to a common inlet 5. In a modification a main inlet 14, Fig. 8, delivers dust-laden gas into a rotary drum having four sets of parallel plates 13, 12, 13, Fig. 9, each set forming a lamellar inlet duct 51 and a contiguous outlet duct 50 delivering clean gas into a common exhaust duct 15 both ducts 50, 51 being open to a hopper 17 into which dust is projected radially whilst gas skirts the edge of each plate 12 in passing from ducts 51 to 50. The Specification as open to inspection under Sect. 91, comprises also the application of the apparatus to the removal of liquid droplets from gases. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1426563-A (GB)
Title: Calculator
IPC: G06G1/00
Filed: 1973-02-21
Abstract: 1426563 Slide rule BEECHAM GROUP Ltd 4 Feb 1974 8463/73 Heading G4B A calculator of disc, cylindrical or (as shown) flat straight form bears scales relating profits to buying and selling prices, firstly in connection with items which attract VAT at a given rate and secondly in connection with zero-rated items. When a buying price per unit (15 as shown) on scale S is aligned with the zero mark on scale P o , then selling prices on scale S (e.g. 18) are aligned with profit margins (e.g. 16À6%) on scale P 0  (for zero-rated items) and with profit margins (e.g. 8%) on scale P T  (for items bearing VAT). Scale P T  is valid for a rate of VAT=x, where - x on extrapolated P T  is aligned with 0 on scale P o . If the items are bought so many to a ease, then an appropriate C-scale can be used in conjunction with index mark 5 to align the unit item cost on scale S with the zero of scale P o . The other side of the rule is similar but bears different C-scales. To accommodate changes in the rate of VAT, the P T  scale may be adjustable or bear a number of marks corresponding to different values of x.
Patent GB-974207-A (GB)
Title: Quick-action chuck for drilling and milling tools
IPC: B23B31/26
Filed: 1963-03-04
Abstract: 974,207. Machine tool details. FABRIQUE DE MACHINES PERRIN FRERES S.A. March 4, 1963 [March 23, 1962], No. 8475/63. Heading B3B. A chuck comprises a hollow tool-carrying spindle 7, and an inner member 18, 19, 20 having a circular series of openings to receive balls 22 radially movable towards a groove 23 in a detachable tool-holder 14. The spindle 7 is rotated by a splined shaft 11 carrying a drive pulley 12. The tool 13 is secured by a drawbolt 15 in the holder 14 having driving lugs 14a. When the spindle quill 3 is raised by a pinion 4, the upper ends of levers 28 (mounted on the member 18, 19, 20) abut a fixed cup 30 and depress plungers 26 in the head 20 to allow the  spindle 7 to slide over the member. As the spindle continues to rise, the balls 22 move into a recess 17b in the spindle and the holder may then be removed.
Patent GB-231001-A (GB)
Title: Apparatus for game of skill
IPC: F41J5/18
Filed: 1924-04-04
Abstract: 231,001. French, J. April 4, 1924. Outdoor games. - Target apparatus for a game of skill embodies the representation of an eye or eyes that can be caused to assume a blackened appearance when hit by a ball or other missile thrown bv the player. As shown in Figs. 2 and 4 a grotesque head is drawn partly on a wooden base c and partly on a plate 1 of sheet steel representing the forehead. The eyes are represented by two rubber ball segments g secured within apertures in the base c. Behind the rubber segments are arranged projections i carried by springs k secured to a bridge piece i. When the eye is struck by a ball the projection j and its spring are driven back beyond a catch m, thus causing a stop r, carried by the spring to be withdrawn from beneath a blackened shield n which then falls in front of the, eye and gives it the appearance of having been blackened. The blackened shield may be restored to its raised position by pulling a cord, the catch m being similarly operated to allow the stop r to assume its supporting position.
Patent GB-1501143-A (GB)
Title: Process of preparing sintered ceramic structures
IPC: C04B35/638
Filed: 1975-02-28
Abstract: 1501143 Ceramic bodies W R GRACE & CO 28 Feb 1975 [7 March 1974] 8514/75 Heading C1A Ceramic structures are prepared by (a) heating a green starting body formed of a ceramic component (e.g.selected from alumina, magnesium aluminate spinel, spodumene, petalite, cordierite, mullite and zircon mullite) compounded with a polyolefin binder to a temperature of 200-800‹ C. to decompose the polyolefin, in an atmosphere provided by gases produced by combustion of fuel in less than the stoichiometric amount of molecular oxygen required for combustion and (b) heating the body to 1000-1600‹ C. under oxidizing flame conditions to sinter the ceramic component. Specification 1,349,400 is referred to.
Patent GB-398854-A (GB)
Title: The manufacture of new azo dyestuffs and intermediate products
IPC: C09B29/22
Filed: 1932-03-22
Abstract: Insoluble azo dyes are made by coupling a 2-hydroxy-5 : 6-dihydro - 7 : 8-benzocarbazole-3-carboxylic acid arylamide with a diazo compound in substance, on the fibre or on a substratum. In an example, cotton is impregnated with the p-anisidide and developed with diazotized 2 : 5-dichloraniline.  A table showing the shades produced using various arylides and the following diazo components is given: 4- and 6-chloro-2-toluidine, 4-chlor-2-anisidine 3 : 2<1> - dimethyl-4-aminoazobenzene, b  - naphthylamine, 2 : 4<1> - dimethyl - 2<1>-nitro - 3 - methoxy - 4 - aminoazobenzene, 4 - nitro - 2 - toluidine, 6 - amino - 4 - benzoylamino: 1 : 3 - xylene, 2 - and 3 - chloraniline, and 4-nitro-2-anisidine.  2 - Hydroxy - 5 : 6 - dihydro - 7 : 8 - benzocarbazole - 3 - carboxylic acid arylamides are made from the corresponding carboxylic acids and amines according to customary methods.  In an example, the acid is condensed with p-anisidine by means of phosphorus trichloride in toluene.  The 2-methyl-4-anisidide, 3 and 4-chloranilide, 2-toluidide, 4-anisidide, 3-nitranilide, 2-naphthylamide, and 2-carbazolylamide are also specified.  2-Hydroxy-5 : 6-dihydro-7 : 8-benzocarbazole -3-carboxylic acid is made by causing carbon dioxide to act on the alkali metal salt of the corresponding hydroxy compound or on the hydroxy compound in the presence of an alkali metal carbonate.  An example is given.  2 - Hydroxy - 5 : 6 - dihydro - 7 : 8 - benzocarbazole is made from a 5 : 6-dihydro-7 : 8-benzocarbazole containing a group in the 2-position which can be converted into a hydroxy group by known methods, e.g. NH2, SO3H or alkoxy groups.  In examples, the 2-sulphonate is fused with caustic potash and the 2-methoxy compound is heated with aluminium chloride in toluene.  5 : 6 - Dihydro - 7 : 8 - benzocarbazoles substituted in the 2-position are made by condensing the corresponding phenylhydrazine compound with a -ketotetrahydronaphthalene by methods analogous to that of Bucherer.  The 2-amino-, sulpho- and alkoxy compounds are specified.
Patent GB-579507-A (GB)
Title: Diversity radio-receiving system
IPC: H04B7/10
Filed: 1944-05-08
Abstract: 579,507. Wireless receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 8, 1944, No. 8704. Convention date, May 6, 1943. [Class 40 (v)] In a diversity receiving system, antennas 1, 2, are adapted to be alternatively connected through valves 5, 6 to a receiver 9 having a detector 11 supplying an audio-frequency output over lead 12. Grid bias potentials for valves 5, 6 are supplied from a trigger circuit 13 such that when one of valves 5, 6 is conductive, the other is blocked. The trigger circuit is energized by the output of a modulator 15 supplied by a low frequency source 16. In the absence of a received signal, trigger circuit 13 is changed over at the frequency of source 16 to render valves 5, 6 alternately conducting. When a signal of sufficient strength is received on one of antennas 1, 2 an A.G.C. potential fed over line 17 blocks modulator 15 and prevents energization of trigger circuit 13 by source 16. Thus, whichever of valves 5, 6 is carrying the signal remains conducting and the other remains blocked. When this signal fades, the A.G.C. potential is reduced, so allowing source 16 to change over the trigger circuit, in which position it is locked by the increased A.G:C. potential due to the stronger signal on the other antenna. The best signal from any number of antennas may be selected by coupling them in pairs in this manner and treating the selected R.F. or I.F. outputs at 34 in the same way. Specification 537,937 and U.S.A. Specification 1,844,950 are referred to.
Patent GB-1102067-A (GB)
Title: Polymerization of olefines
IPC: C08F10/00
Filed: 1965-03-02
Abstract: An olefine which is gaseous at standard temperature and pressure is polymerized at a pressure of at least 5,000 p.s.i. and at temperatures of 170-260 DEG  C. using as a catalyst an o,o-tert. alkyl o-alkyl monoperoxycarbonate, containing up to 6 carbon atoms in the tert. alkyl group and up to 8 carbon atoms in the alkyl group, in liquid form.  The olefine may be ethylene.  The catalyst may be o,o-tert. butyl o-isopropyl monoperoxy carbonate with optionally ditert. butyl peroxide and tert. butyl hydroperoxide. The polymerization may be carried out in the presence of butane as chain transfer agent and rate of reaction and molecular weight controller. The solvent for the catalyst may be hexane, the catalyst solution may be fed continuously to the ethylene which is fed to the reactor and unreacted ethylene may be recycled.
Patent GB-1497746-A (GB)
Title: Method of the electrophotographic properties of poly-n-vinyl carbazole
IPC: G03G5/00
Filed: 1975-03-04
Abstract: 1497746 Improving electro-photographic members PHILIPS GLOEILAMPENFABRIEKEN NV 4 March 1975 [7 March 1974] 8893/75 Heading G2C Electro-photographic members comprising a conductive support and a partly transparent layer not more than 5 microns thick containing polyvinyl carbazale and optionally a sensitizer are heated for at least 15 hours between 45 and 70‹C. There may be 2 layers of polyvinyl carbazale. Before such heating, they may be dried (e.g. between 50 and 60‹C for 1 to 2 hours) and stored at room temperature. The heating step may be repeated and it is stated that such heating improves the sensitivity of the member in terms of its discharge on exposure. Trinitrofluorenone is the preferred sensitizer.
Patent GB-1213983-A (GB)
Title: A method of testing components and apparatus therefor
Inventor: WATKINS CHARLES
IPC: G01B11/02
Filed: 1967-02-24
Abstract: 1,213,983. Measuring shapes of components. RALEIGH INDUSTRIES Ltd. Feb.22, 1968 [Feb. 24, 1967], No.8910/67. Heading G1M. A scale size shadow or silhouette 10 of a component is cast upon a screen 11 of a shadowgraph machine and the shadow is scanned by a moving spot which causes a signal to be sent to a computer each time a change in light or dark on the screen is detected. The computer records the times between signals as component dimensions which are compared with standard dimensions previously fed into the computer and controls the start and stopping of the scanning and also the automatic removal and insertion of the components and their acceptance or rejection.
Patent GB-492727-A (GB)
Title: Process for the conversion of olefin hydrocarbons
IPC: C07C2/74
Filed: 1937-03-25
Abstract: Olefines are simultaneously polymerized and hydrogenated by treatment with hydrogen, a polymerizing agent, and a catalyst selected from the oxides and sulphides of chromium, molybdenum, tungsten, and uranium. Suitable polymerizing agents are aluminium, zinc, and magnesium chlorides, boron fluoride, and sulphuric, phosphoric, and perchloric acids, but solid mixtures of a phosphoric acid and an adsorbent are excluded.  The reaction temperature is usually below 300 DEG  C. and the pressure 100 atmospheres or less.  The process is particularly applicable to the production of iso-paraffins boiling within the range of motor fuel from the mono-olefines present in oil cracking gases. According to an example, 100 parts of isobutylene are heated for 12 hours at 275 DEG  C. in 100 atmospheres of hydrogen in the presence of 2,5 parts each of molybdenum oxide and zinc chloride.  A 36 per cent yield of iso-octane is obtained.
Patent GB-1142156-A (GB)
Title: Improvements in or relating to rotary fluid pressure pumps and motors of the internally meshing n and n+1 tooth type
IPC: F01C1/08
Filed: 1966-03-01
Abstract: 1,142,156. Rotary positive-displacement pumps and motors. DANFOSS A. S. March 1, 1966 [March 4, 1965], No.8927/66. Heading F1F. In a rotary pump, or motor, of the n and n+1 tooth type, an externally-toothed gear-wheel 1 is rotatable in a planetary manner relative to an internally-toothed gear-wheel 2, and to effect either a constant output-pressure or a constant output-torque the "pitch circles" 13,14 are rendered substantially polygonal, one series of apices on each pitch circle being preferably in radial alignment with the centres of the tooth-spaces or teeth, as shown. During operation of the gearwheels they are always in contact with each other within two areas, e.g. areas 9, 10, and the working fluid passes between the gear-wheels from an inlet to an outlet (not shown) in the conventional manner. The apices of the pitch circles and the rectilinear portions therebetween may be rendered slightly curved. The profiles of the gear-teeth may include alternate convex and concave portions, as shown in Fig. 5, or otherwise be such that the equation k<SP>2</SP> 10  - k<SP>2</SP> 9  = constant, where k 9  and k 10  are the distances of the two areas aforesaid from the instantaneous axis of rotation 12 of the gear-wheel 1.
Patent GB-141892-A (GB)
Title: Improvements in brush holders of dynamo electric generators and electric motors
IPC: H02K5/14
Filed: 1919-04-09
Abstract: 141,892. Efandem Co., Owen, W., and Cutler, F. E. April 9, 1919. Casings,- brush-holders; pole-pieces and cores.- The brush-holders E are of cylindrical form and are clamped by recessed bolts e<6>, Fig. 4, which are arranged transversely to the holders and are operated by being moved endways by means of nuts e<10>; each holder comprises a tube of insulating-material mounted in a metal ferrule against which the bolt e<6> bears. The casing B carrying the field magnet C is open at one end, around which is formed a spigot adapted to engage with corresponding spigots at opposite ends of a narrow bridge D wherein is carried one of the armature bearings b<3>, and preferably also the brush-holders E. An end cap F straddles the bridge D and engages with the spigot on the casing, and is secured to the bridge by a nut f<1>, the bridge being secured to the casing by screws. The casing B is of square box form, and the pole-pieces C are secured to its flat sides both by screws c and dowel pins c<1>.