baber/WOPTO huggingface dataset:
Patent GB-269487-A (GB)
Title: Improvements in or relating to multi-cylinder engines of the opposed-piston type
IPC: F02B75/22
Filed: 1927-02-07
Abstract: 269,487. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Herr, H. T.). April 14, 1926, [Convention date]. Cylinders receiving liquid fuel. - A multicylinder engine is formed of a number of units each unit comprising four or more cylinders arranged with intersecting axes the cylinders having oppositely-moving pistons in each. In an engine consisting of six units each of four cylinders arranged in a square, the cylinders are supported on a box frame made up of four longitudinal plates 112, attached to the outer edges of corner plates 65 - - 68; transverse plates 113 are used, the cylinders lying between these plates. The. interior of the frame is used as an air duct and the fuel pipes 116 pass through the interior. To prevent fuel which may have leaked from a pipe 116 mixing with the air in the frame, the pipes are surrounded by tubes 117 which collect and lead away any leakage; in the Figure the tube is broken away to enable the pipe to be shown.
Patent GB-1022060-A (GB)
Title: Improvements in or relating to gas heated water boilers and heaters
Inventor: LOMAX WILLIAM
IPC: A47J31/54
Filed: 1964-01-28
Abstract: 1,022,060. Water heaters. MAXOL HEATERS Ltd. Jan. 27, 1965 [Jan. 28, 1964], No. 3482/64. Heading F4A. In a water heater or boiler having a heating pan d<SP>1</SP>, d<SP>2</SP> arranged above a gas ring B and separated by an annular flue d<SP>4</SP> from an outer water jacket C to which water is supplied from a float-controlled reservoir E, the pipe f connecting the pan d<SP>2</SP> to the draw-off tap has an upwardly extending outlet F allowing steam or water to pass into the jacket C should the pressure in the pan become excessive. Holes in the pipe f communicate with a sleeve around the pipe to which the outlet F is fixed. The flue may comprise corrugated fins d<SP>4</SP>.
Patent GB-1414692-A (GB)
Title: Disinfecting apparatus
IPC: A61L2/10
Filed: 1973-01-24
Abstract: 1414692 Apparatus for ultra-violet irradiation DETEC SA 24 Jan 1973 [2 Feb 1972] 3509/73 Heading H5R [Also in Division F4] Disinfecting apparatus comprises a rotatable base 2, means such as an electric motor 10 for rotating the base, and at least one fluorescent tube 4 mounted on the base and capable of emitting germicidal ultra-violet radiations. The base rests on a revolving plate 11 which, together with the motor 10, is mounted on a a support 9, retractable wheels 12 being secured to the base and being adapted to be lowered info contact with the ground to facilitate displacement of the apparatus. The tubes 4 are mounted vertically and are provided with sliding masks 7 which can be opened, to permit direct action of the radiation on the ambient area, or closed so that the radiation acts only on air circulated through the apparatus by a fan in the base. The tubes, which emit strongly at a wavelength of 2537Š, may be fixed relative to the base 2 or may be tilted outwardly (Fig. 3, not shown) about their lower ends to increase the irradiated area. The apparatus incorporates an ozone generating device 5 and a bactericidal mist generating device 6, and is preferably oscillated through an are of about 90 degrees.
Patent GB-112069-A (GB)
Title: Improvements in Stands or Supports for Drills and similar Portable Machines.
Inventor: KAY IVO JAMES
IPC: B23B39/00
Filed: 1917-03-10
Abstract: 112,069. Kay, I. J. March 10, 1917. Stands for drills &c.-Relates to stands or supports for drills &c. of the kind which are secured by air or water pressure. According to the invention, the base D is made hollow and is of annular form to provide a passage way F for the tool. On the lower face are two rings I, J of india-rubber &c. which form between them a recess H, in communication, through a valve K, with the space E which can be exhausted through the valve L. The base carries a pair of rode A which adjustably support a cross bar B against which the drill-brace &c. bears. To secure the stand on a ship's side, for instance, it is placed in the desired position, and the valve K turned so that the space H is exhausted into the space E. To remove it, the vacuum is destroved bv rotating the valves K, L so as to admit air or water.
Patent GB-1025896-A (GB)
Title: Polymerisation of olefinic hydrocarbons
IPC: C07C2/20
Filed: 1963-01-29
Abstract: Olefins are polymerized by introducing a stream containing said olefins into a reaction zone and contacting at - 50-300 DEG  C. with a bed of boron trifluoride modified anhydrous alumina and a separately introduced stream of 0.001-0.8 g. of boron trifluoride per mole of olefin and recovering the polymerized olefin. Reaction conditions specified are pressures of 1-136 atmos., residence times of 0.1-25 hours and L.H.S.V. of 0.1-20.  The alumina may be gamma, eta or theta alumina.  Olefins specified are ethylene, propylene, butene-1 and -2, iso-butene, pentenes, hexenes, heptenes, octenes, propylene and iso-butylene dimers, trimers, tetramers and pentamers, cyclopentene, methylcyclopentene, ethylcyclohexene and refinery tail gases. Acetylene and its homologues may also be used.  The examples describe the preparation of propylene pentamer from propylene.ALSO:Olefins are polymerized by introducing a stream containing said olefins into a reaction zone and contacting at - 50-300 DEG  C. with a bed of boron trifluoride modified anhydrous alumina and a separately introduced stream of 0-001-0.8 g. of boron trifluoride per mole of olefin and recovering the polymerized olefin. Reaction conditions specified are pressures of 1-136 ats., residence times of 0.1-25 hours and L.H.S.V. of 0.1-20. The alumina may be gamma, eta or theta alumina.  Olefins specified are ethylene, propylene, butene-1 and 2, isobutene, pentenes, hexenes, heptenes, octenes, propylene and iso-butylene dimers, trimers, tetramers and pentamers, cyclopentene, methylcyclopentene, ethylcyclohexene and refinery tail gases. Acetylene and its homologues may also be used. The examples describe the preparation of propylene pentamer from propylene.
Patent GB-1029574-A (GB)
Title: Resinous compositions
IPC: C08G8/00
Filed: 1963-01-30
Abstract: A blend of a solid oxymethylene polymer which loses less than 40% of its weight when heated in air at 222 DEG  C. for 40 minutes and a substance of molecular weight not higher than 1500 and capable of reaction with formaldehyde to yield a thermosetting resin, which blend has been heated to an intermediate state in which the components of the blend have reacted with one another to form a resinous composition which is still fusible. The polymer may contain comonomer units from, e.g. cyclic ethers such as ethylene oxide or dioxalane.  Specified formaldehyde reacting substances are phenol, resorcinol, melamine and novolacs.
Patent GB-1399176-A (GB)
Title: Animal feeds
IPC: A23K10/33
Filed: 1973-01-25
Abstract: 1399176 Animal feed PRODUITS CHIMIQUES UGINE KUHLMANN 25 Jan 1973 [26 Jan 1972 7 Sept 1972] 3844/73 Heading A2B A solid animal feed composition comprises 0.25-5.25 parts by weight of a mixture of salts providing calcium, phosphorous, and urea in the weight ratio Ca:P from 0.68:1 to 2.40:1 and N:P from 0.90:1 to 2.70:1, and one part by weight of at least one sugar-containing liquid industrial by-product, preferably derived from the manufacture of sugars, for example molasses, fruit juices, or glutamic acid. The preferred mixture of salts is urea phosphate and lime.
Patent GB-537697-A (GB)
Title: Improvements relating to overload slipping clutches for use with time-lag devices
IPC: F16D7/02
Filed: 1940-03-02
Abstract: 537,697. Slipping couplings. ROTHERHAM & SONS, Ltd., and LITCHFIELD, S. E. March 2, 1940, No. 3938. [Class 80 (ii)] In a slipping coupling for use with a time - delay mechanism, such as an escapement or a brake, a gear-wheel 14 on the driven shaft 21 is recessed to accommodate a freely mounted friction-disc 19 and a pressure-plate 20, which abuts against a shoulder 23 on the shaft. The parts are clamped together by a nut 24 on the shaft, preferably acting through a spring washer. The nut is mounted in a recess in a hub 26 of the gear 14, by which the gear is journalled in the casing of the device. The presser-plate 20 is driven through ratchet-mechanism 28 from a pinion 13 rotated by a rack.
Patent GB-142219-A (GB)
Title: An improved valve actuation mechanism, for internal combustion engines
IPC: F01L5/06
Filed: 1919-02-18
Abstract: 142,219. Howard, H. J. Feb. 18, 1919. Valve-gear. - Reciprocating cylindrical or segmental valves c of internal-combustion engines are connected to an actuating-bridge a by two side members b, each consisting of a compression member 2 and a central tension member 6, which are caused to grip the studs 3 on the valve by screwing up nuts 4. In a modification, the member 2 is tubular and provided with recesses to receive either two studs or a flattened tongue on a segmental valve.
Patent GB-1207031-A (GB)
Title: Process for production of cryolite
IPC: C01F7/54
Filed: 1968-01-25
Abstract: 1,207,031. Cryolite. UGINE KUHLMANN. 25 Jan., 1968 [1 Feb., 1967], No. 3979/68. Heading C1A. Cryolite is produced by mixing sodium fluosilicate in particulate form with hydrated aluminium fluoride in particulate form, and HF, in aqueous solution, or a compound which decomposes under the reaction conditions to HF, in such proportions that the A1F 3  and NaF are stoichiometric to produce cryolite, the quantity of HF being 2-10% by weight of the total reactants, and heating to between 500 C. and 800 C. The hydrated aluminium fluoride may be the trihydrate or the hemihydrate. The source of hydrogen fluoride may be fluosilicic acid, fluoaluminic acid or sodium or ammonium difluorides, the two acids above preferably being in aqueous solution.
Patent GB-470188-A (GB)
Title: Improvements in heating apparatus for vehicles propelled by internal combustion engines
IPC: B60H1/18
Filed: 1936-02-11
Abstract: 470,188. Ventilating vehicles. SLEIGH, H. L., CHESTON, A. S., and BOOTH, J. H. Feb. 11, 1936, Nos. 4080 and 7565. [Class 137] [Also in Group XIII] Air is supplied to the body of a motor vehicle by a funnel 20 and pipe 19 to distributers 18, 22, 24. Warm air may be added as required, through funnel 10, heater 12 and valve 26.
Patent GB-1254811-A (GB)
Title: Solid-state storage device
IPC: H01L29/792
Filed: 1970-01-28
Abstract: 1,254,811. Semi-conductor devices. HUGHES AIRCRAFT CO. 28 Jan., 1970 [17 Feb., 1969], No. 4130/70. Heading H1K. A solid-state storage device is based upon an IGFET structure, with source and drain regions 102, 104, a first gate electrode 110 on a first insulating layer 108 and overlying a first part 105a of the channel 105, and a second gate electrode 116 on a second insulating layer 114 which covers the first gate electrode 110, the second gate electrode 116 overlying a second part 105b, 105c of the channel 105. For a Si substrate 100 the first insulating layer 108 may be of SiO 2  and the second insulating layer 114 may be of Si 3 N 4 . The channel 105 is induced by a potential applied to the first gate 110, but a depletion region is formed in part 105b of the channel by a suitable bias between the second gate 116 and the drain 104. This permits high energy carriers to surmount the potential barrier between the semi-conductor 100 and the first insulating layer 108 in the storage mode of the device, and to become trapped at dislocations, vacancies &c., in the second insulating layer 114 and adjacent the interface between the two insulating layers. This accumulation of stored charges modifies the conductance of the device to permit read-out of the stored information. If it is desired to use the device in an erase mode the first insulating layer 108 must be thin enough to permit tunneling of the trapped carriers therethrough back into the substrate 100. In a modification the first and second insulating layers both underlie the first gate 110, in which case a third insulating layer is required over the first gate 110 and beneath the second gate 116. The gates 110, 116 may both be metal layers, or non-metallic transducers such as piezo-electric crystals may be employed. In one form the second gate 116 is a sound transducer, and an array of storage devices may be used to store voice patterns.
Patent GB-105076-A (GB)
Title: Improvements in Breech-loading Firearms.
Inventor: PACKARD RALPH GOODING
IPC: F41A19/07
Filed: 1917-03-21
Abstract: 105,076. Packard, R. G. March 21, 1916, [Convention date] Breech actions, sliding breech - block; firing - appliances; trigger guards; stocks.-Consists in providing a bolt-action rifle with (1) a thumb-actuated trigger on the upper part of the stock and a hood-like trigger guard provided with a peep sight and preferably carried by the cocking-piece, and (2) a notched grip plate beneath the stock, terminating in a hook-like projection. In the construction shown in Figs. 2 and 4, the trigger guard- G comprises a hood screwed to the cocking-piece U and sliding in grooves in guides G<1> rising from the breechbody on each side of the trigger I. When the gun is cocked, the guard covers the trigger I, which consists of a plunger eliding in a hole in the casing, and actuating the lever cam M on the sear N by means of a lever J passing through a slot in a guide-post K. The bearing-hole for the trigger is surrounded by a grooved flange P, Fig. 2, to exclude moisture. The peep-sight A is mounted at the top of the hood G. The grip plate H has notches e to fit the fingers, and terminates at the rear end in a hook d.
Patent GB-1012548-A (GB)
Title: Improvements in and relating to method for removing dust from convertor flue gases
IPC: C21C5/38
Filed: 1964-01-31
Abstract: A method for removing dust from converter flue gases wherein the after-burning of the flue gases is prevented by covering the converter with a hood, is characterized in that the metallic substances in the flue gases are protected from oxidation, and are separated from the gases as metal on filtering substances. The hood of the converter is fitted with a conduit to allow a discharge of the flue gases, which are then passed, without cooling, through layers or columns of filtering material on which the metals and other impurities contained in the gases precipitate.  The filtering material is preferably a substance that may be used in a blast furnace, e.g. coke, metal filings or small scrap, to remove the necessity for separation of the metal from the filter.  The protection of the metal in the flue gases from oxidation may be improved by adding reducing agents such as carbon or oil to the flue gases.  Magnetic separation may be applied to the gases in addition to the method of the invention.ALSO:In a method of extracting metal vapour and metal droplets from the waste gases from a steel converter, oxidation of the metal vapour and droplets is prevented, and the exhaust gases are passed through a filtering material, preferably comprising a material which may be used in iron and steel manufacture, e.g. iron and steel filings or scrap, or coke, so that a later separation of filter and deposited metal is unnecessary.  The material may be in the form of a moving bed.
Patent GB-419441-A (GB)
Title: Improvements in or relating to television and the like systems
IPC: H04N5/08
Filed: 1933-02-10
Abstract: 419,441. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, BROWNE, C. O., 29, Monk's Drive, West Acton, London,. and HARDWICK, J., 66, Drayton Gardens, West Drayton, Middlesex. Feb. 10, 1933, No. 4169. [Classes 40 (iii) and 40 (v).] Differences in the amplitude of synchronizing signals are reduced and ground noises and similar disturbances below a certain maximum are eliminated. Synchronizing signals applied to the grid of a valve 9 cause grid current to charge a condenser 8 sufficiently to stop the flow of anode current. Disturbances which are not of sufficient value to cause a flow of anode current are thus eliminated. The synchronizing-signals are always of sufficient amplitude to cause grid current, and the signals appearing in the anode circuit are therefore limited to a uniform amplitude. These are applied through a condenser 18 to the screen grid of a blocking oscillator 20 to start the flow of anode current which is reinforced by positive back-coupling through a transformer 23. When grid-current begins, a condenser 25 is charged and stops the anode current. A condenser 27, which has been discharged by the anode current, then begins to charge up again. The voltage, across the condenser are applied to a television apparatus through a terminal 28. The framing impulses are longer than the line-control signals, and are separated by a resistance 15 in series wth the valve 9 and shunted by a condenser 16 which has a low impedance to short impulses but a high impedance to long impulses. The framing signals are applied to a separate blocking oscillator 29.
Patent GB-783156-A (GB)
Title: Improvements in or relating to submersible pump units
Inventor: ISAKSSON KARL GOETE
IPC: F04D29/70
Filed: 1956-02-10
Abstract: 783,156. Centrifugal pumps. AKTIEBOLAGET FLYGTS PUMPER. Feb. 10, 1956, No. 4169/56, Class 110 (1) In a submersible pump adapted to rest on the bed of the body of water to be drained and provided at its lower end with an inlet opening which is covered by a screen or perforated plate, a support member in the form of a closed figure corresponding in shape substantially to the periphery of the screen or perforated plate is secured to the latter and disposed in a plane parallel to and spaced from it so that an entry slot is formed between it and the support member. The submersible centrifugal pump shown is supported by a toroidal member 5, which may be of tubular or solid material, secured to means for preventing turbulence which may comprise diametrical cross-bars 4. The latter are bolted at 6 to a perforated filter-plate 2 covering the pump inlet or instead may be integral with, or welded to, the plate 2. Water is drawn in through the annular gap between the perforated plate 2 and the ring 5, and the material on which the member 5 rests is undisturbed by the water stream so that the pump does not tend to dig itself into the material. Instead of being circular, the perforated plate 2 and member 5 may be oval or rectangular. The width of the annular gap is preferably 1 to 10 per cent of the maximum transverse dimension of the perforated plate 2.
Patent GB-475314-A (GB)
Title: Improvements in oil-fired furnaces for steam generators
IPC: F23D11/10
Filed: 1937-02-12
Abstract: 475,314. Liquid fuel burners. SPRENGER; E. Feb. 12, 1937, No. 4205. [Class 75 (i)] One or more oil burners are secured in the fire-door of a steam generator, and steam supplied through a hollow space in the firedoor circulates through the burners and becomes superheated before being discharged to atomize the fuel. The burners each comprise an atomizing head 2 connected by a steam jacket 1 to a block 3. The block 3 and a nut 20 screwing on the jacket 1 are provided with conical surfaces 17, 21 enabling the burner to be secured steam -tightly to conically seated bosses on the fire-door 15. Steam supplied through a pipe 31 to a chamber 24 in the fire-door passes through passages 23, 25 to the steam jacket 1 and then through pipes 13, 11 to a passage 10 in the head 2 to atomize the oil issuing from a passage 4 after passing through a pipe 5 in the steam jacket. A steam control valve 12 arranged in the block 3 has two " closed " positions ; one steam is completely shut off and in the other sufficient steam is allowed to pass to keep the burner cool whilst the firebox cools. The oil supply to the burners is effected through a common distributer 28, preferably regulated automatically. 3-Way shut off valves 6 are provided for each burner, one position of the valves allowing access to be had to the pipe 5 through a passage 8 for cleaning. Access can similarly be had to the pipe 11 on removing a plug 14 and turning the valve 12 to the open position. The fire-door is provided with a small service door 26 fitted with a micacovered inspection aperture 27. Flexible pipe connections allow the door to be opened without removing the burners.
Patent GB-707800-A (GB)
Title: Improvements in or relating to motion picture film
Inventor: CAMRAS MARVIN
IPC: G11B5/74
Filed: 1952-02-18
Abstract: 707,800. Kinematograph sound and picture films. INTERNATIONAL RESEARCH & DEVELOPMENT CORPORATION. Feb. 18, 1952, No. 4215/52. Drawings to Specification. Class 98(2) To reduce the noise produced by flutter during passage of a kinematograph film bearing a photographic picture area and a sound record, e.g. formed by magnetic particles in a resinous binder, located beyond the film feed perforations around a roller in the magnetic transducer head, the flutter is reduced by increasing the flexibility of the film in the perforation area as by forming apertures of a different size and shape between the feed perforations, when noise due to any flutter remaining is beyond the audible limit, by means of plasticizer, or by making the film thinner in the perforation area as by shaving.
Patent GB-1455212-A (GB)
Title: Apparatus for measuring the thickness of dielectirc articles
IPC: G06G7/28
Filed: 1974-01-30
Abstract: 1455212 Measuring thickness electrically OWENS-ILLINOIS Inc 30 Jan 1974 [31 Jan 1973] 04316/74 Heading G1N [ Also in Division G4] In a system for monitoring the thickness of a dielectric article (e.g. bottle) of the type described in Specification 1380349 in which the attenuation of an R.F. signal thereby is detected means are provided to obtain a signal therefrom whose magnitude is a linear function of the thickness of the dielectric. Such linearization enables the reject level of the thickness of the articles to be changed without recalibration of the apparatus. The output at terminal 42 of operational amplifier 34 to the inputs of which are supplied the probe 14 output and a compensated reference voltage (voltage from integrator 20 and corresponding to a thickness of zero) via line 23 is of the form shown at C in Fig. 1 and is a true measure of the thickness of container B placed in front of probe 14 and to which R.F. energy from source 10 is supplied. The linearizing circuit to convert the output at 42 to the form shown at A comprises an operational amplifier 45 the input resistance of which is made to vary corresponding to the magnitude of the voltage at 42 so that curve C is lowered to curve A. Feedback resistor 54 and input resistor 48 are designed such that for the voltage range at 42 corresponding to a glass thickness of B of 0 to 40 thousandths of an inch (curve C being substantially linear in this range) curve C is dropped to that of curve A, this voltage range being below the threshold levels of Zener diodes 50, 52 which remain off. For glass thicknesses in the range 40 to 60 thousandths the voltage at 42 is such that diode 50 begins to conduct at the knee of its characteristic and the non-linear resistance presented thereby is such as to bring curve C down to curve A. Similarly diode 52 begins to conduct at a voltage corresponding to 60 thousandths and its resistance varies non-linearly in the range 60 to 75 thousandths to drop curve C to curve A in this range. Above 75 thousandths it is assumed that it is not required to reject a bottle B and no linearizing in this range is necessary. However the number of Zener diode circuits may be increased or decreased as desired. Operational amplifier 58 is connected as an invertor to obtain the correct output sign for the subsequent circuitry. To set up the apparatus potentiometer 26 is adjusted so that tap 25 reads a particularly desired thickness level (below which bottles are rejected by control 32). A microscope slide whose thickness is known corresponds to this level is then positioned in front of probe 14 and variable resistor 43 of amplifier 34 adjusted until the output voltage at 63 is equivalent to the voltage sensed by tap 25. The circuit is then calibrated and a different reject level may then be obtained merely by adjusting tap 25 to the required level.