baber/WOPTO huggingface dataset:
Patent GB-677478-A (GB)
Title: Improvements in and relating to synchronizing systems for oscillators
IPC: H04N5/12
Filed: 1950-05-17
Abstract: 677,478. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. May 17, 1950 [May 26, 1949], No. 12323/50. Class 40 (vi). An oscillator which has its frequency determined by a resonant circuit is synchronized by applying synchronizing pulses into the resonant circuit by means of a valve so as to maintain the produced oscillations in substantially the same fixed phase relationship as the synchronizing pulses. Fig. 1 shows the application of such a synchronized oscillator as the line scanning oscillator of an otherwise conventional television receiver. The cathode, control grid and screen grid of valve 15 are coupled to tuned circuit 22, 25, 28 to form a Hartley type oscillator of which the frequency may be varied by adjustment of inductor 25. Capacitor 21 is charged by grid current flow during the positive going portions of the sinusoidal voltage to cut-off valve 15 for all but a short portion of the cycle, Fig. 2a (not shown). Positive going synchronizing pulses from the synchronizing separator stage 8 are applied to the control electrode 14 of valve 15 during the periods of conductivity of the valve, Fig. 2b (not shown), thus increasing the flow of anode current during these periods and injecting energy into the resonant circuit 22, 25, 28 which is tuned to the synchronizing pulse repetition frequency. The sine-wave oscillator is thus maintained in synchronism and is unaffected by spurious noise pulses occurring during the portion of the cycle when valve 15 is non-conducting. The sinusoidal output from oscillator 15 is limited by grid current flow in valve 33 so that pulses of anode current flow in this valve to periodically discharge capacitor 36 which is charged from battery 39 via resistors 37 and 38. A trapezoidal waveform, Fig. 2c (not shown), is produced across capacitor 40 and is applied via amplifier 10 to the line deflecting coils 12 of cathode-ray tube 6. In a modification shown in Fig. 3 a triode-hexode valve 15 is used of which the triode section is coupled by resonant circuit 22, 25, 28 to form a Hartleytype oscillator, the positive-going synchronizng pulses being applied to control electrode 50 to produce pulses of anode current in the hexode anode 55 which inject energy into the oscillator resonant circuit at the synchronizing pulse repetition frequency. In this way the introduction of noise pulses via the inter-electrode capacity between electrodes 50 and the resonant circuit is substantially prevented by screen 51. Specification 526,582 is referred to.
Patent GB-785522-A (GB)
Title: Process for the preparation of cereal starch
IPC: C08B30/04
Filed: 1956-04-24
Abstract: In the separation of starch from cereal flour, the finer particles are removed, e.g., by centrifugal separation of the air-borne particles, prior to the aqueous treatment of the larger particle fraction.  According to a comparative example concerned with wheat flour, there is obtained more first quality starch relative to starch containing sticky constituents and fibre when the finer particles are preliminarily removed.
Patent GB-437517-A (GB)
Title: Improvements in or relating to photographic apparatus
IPC: G03B17/26
Filed: 1934-04-26
Abstract: 437,517. Photographic cameras. STEREOSCOPIC PROCESSES, Ltd., 9, Mincing Lane, and BRADSHAW, G., 16, Sloane Avenue, Fulham Road, both in London. April 26, 1934, No. 12556. [Classes 98 (i) and 98 (ii)] In cameras of the type in which relative movement is produced between a screen, such as a lined screen, and the sensitive surface, while the camera swings about the subject as a centre, two oppositely directed co-operating wedge shaped elements 3, 4 of continuous taper are provided to produce the movement between the sensitive surface and the screen and are separate therefrom, one element 4 being constrained to move in the direction of the relative movement by means of pins 6 on fixed brackets 7 engaging slots therein, and the other element 3 bearing against a straight guide 2. When embodied in a plate holder, the movable part may be kept up to the wedges by a spring 18, and the movement may be dampened by a spring carried on the inside of the cover of the plate holder. Marks may be provided on the plate holder and wedges to indicate the amount of movement. The means for moving the wedges may be as described in Specification 437,518, and may be combined with the camera mounting described in Specification 437,519.
Patent GB-329129-A (GB)
Title: Process and apparatus for congealing liquid or semi-liquid substances
IPC: F25C1/00
Filed: 1929-04-23
Abstract: 329,129. Vogt, C. W. April 23, 1929. Stationary mixers with rotary steers.-An icecream mix is pasteurized prior to freezing ih a vessel 100, heated by a steam coil 104 and having oppositely rotating paddles 105, 106.
Patent GB-1370721-A (GB)
Title: Method of electroslag remelting of consumable electrodes
IPC: C22B9/18
Filed: 1972-03-17
Abstract: 1370721 Electroslag remelting INSTITUT ELEKTROSVARKI IMENI EO PATONA AKADENII NAUK UKRAINSKOI SSR 17 March 1972 [17 March 1971] 12748/72 Heading B3F [Also in Division H5] A method of electroslag remelting of a plurality of consumable electrodes carried by a common electrode holder comprises melting the electrodes by immersion in a slag bath in a mould and supplying a cooling gas to the surface of any electrode insufficiently immersed in the slag. Any unbalance in the melting rates of the electrodes is detected by voltmeters connected across each of the electrodes and the ingot being built up. A rise in voltage indicates that the electrode concerned is immersed in the slag to a lesser depth than the other(s). The cooling gas, e.g. air, argon or an argon-oxygen mixture, is then supplied to the surface of this electrode so as to cool both it and the molten slag in its vicinity, and thus bring about a reduction in its melting rate until it is immersed in the slag to the required depth. Refining agents for the metal may be introduced into the gas flow.
Patent GB-415986-A (GB)
Title: Improvements in and relating to turbo-generators
IPC: F01D15/10
Filed: 1934-04-27
Abstract: 415,986. Cooling dynamos. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. April 27, 1934, No. 12768. Convention date, April 28, 1933. [Class 35.] A steam turbine 12 and a generator 10 are vertically arranged and connected by a coupling 9 which is released upon the turbine being lifted. A condenser 15 surrounds, or partly surrounds the generator, and forms part of the support for the turbine casing. Cooling water flows between headers 17, 18 and cooled fluid from the turbine is drained away through an outlet 22. Centrifugal blowers 23, 24, supply cooling air for the generator jacket 25. An additional water jacket separates jacket 25 from the condenser.
Patent GB-118469-A (GB)
Title: Improvements in or relating to Crutches.
Inventor: WELDON FRANCIS
IPC: A61H3/02
Filed: 1917-09-07
Abstract: 118,469. Weldon, F. Sept. 7, 1917. Crutches.-In crutches of the kind described in Specification 105,185, in which a curved base part is connected by two legs to a head-piece, in plan inclined from the rear inwards relatively to the base part in the direction of walking, the rear leg is relatively larger than the front leg, both legs are made up of two members connected by distance-pieces, and a member may stretch across between the two handles of a pair of crutches to form a seat. In Figs. 1 and 4, each leg is .shown composed of two members a connected by distance-pieces, the lower one c being curved to enable the crutch to avoid catching in steps &c. The members a are connected together at the top, and each leg is secured to the headpiece on opposite sides. The rear leg is longer than the front leg to make the crutch more stable and to assist in ascending hills. By reversing the crutch, a descent may be made easier. A piece d flexibly secured to the strips a of one crutch may stretch across between two distance-pieces or between the handles to form a seat. The seat may be a flexible loop between handles or distancepieces. The composite side strips may be parallel and the upper distance-pieces fitted to sockets on the head-piece, which is afterwards twisted. The legs may be of equal length and the curved base made deeper at the rear. An extra strut may trail behind the crutch to secure stability in special cases.
Patent GB-735518-A (GB)
Title: Improvements in electric control circuits
Inventor: MELVILLE WILLIAM SIMM
Filed: 1952-05-21
Abstract: 735,518. Dielectric amplifiers.. BRITISH THOMSON-HOUSTON CO., Ltd. May 19, 1953 [May 21, 1952], No. 12863/52. Class 40 (4). In a dielectric amplifier like that described in Specification 735,427, the alternating source G and the control voltage across the normal capacitor C are such that the saturable capacitor D is saturated during part of the cycle. A change is the control voltage changes the output by causing saturation during a greater or a lesser part of the cycle. Single-crystal barium titanate has a suitable charge density/electric force characteristic with an abrupt change of slope as the titanate changes from an unsaturated state to a saturated state with only a small charge of electric force. In a modification the load R is connected in parallel to two saturable capacitors D1, D2 in series and is coupled to the generator G by a transformer T. The control voltage is applied across a normal capacitor C connected between the common point of capacitors D1, D2 and a tapping on the transformer secondary. Specification 715,826, [Group XXXV], also is referred to.
Patent GB-650181-A (GB)
Title: Improvements in square wave generators
IPC: H03K3/53
Filed: 1948-05-11
Abstract: 650,181. Electricity supply. SNEATH, O. B. May 11, 1948, No. 12897. [Class 38 (iv)] [Also in Group XL (c)] In a square-wave generator a load is periodically switched across a resistor and capacitor which are connected in series across the output of a D.C. power supply unit which has inductive smoothing, the resistor has a value approximately equal to the D.C. output impedance of the power supply unit and the product of the reciprocal of the value of the capacitor and the inductance of the smoothing circuit is approximately equal to the square of the value of the resistor. The Figure shows a D.C. power supply unit in which a second smoothing capacitor C2 has a resistor R1 in series with it and in which a load resistor R2 is periodically shunted across the output by a switch N. It is shown that if R1 has a value equal to the D.C. resistance of the power unit looking into the inductor L, and if L/C2=R1<SP>2</SP>, then an approximately square wave is generated across resistor R2. In a modification, Fig. 2 (not shown), the switch N comprises a multielectrode valve which is periodically rendered conducting by switching signals applied to its control grid.
Patent GB-1360486-A (GB)
Title: Metal strip from powder
IPC: B22F3/18
Filed: 1972-05-04
Abstract: 1360486 Sintered metal strip containing metal oxides BRITISH STEEL CORP 4 May 1972 [4 May 1971] 12914/71 Heading C7D A powder mixture of a metal e.g. stainless steel and a refractory oxide e.g. Al 2 O 3  CeO, TiO 2 , SiO 2 , ThO 2 , ZrO 2  is rolled into a green strip sintered and further rolled. The -100 mesh metal powder 5 -300 mesh oxide powder are preferably slurried with methyl cellulose, glycerol or polyethylene glycol and water and either roller coated by rolls 3 or extruded on to a moving belt 4 and dried at 5. The green strip 6 is rolled at 7, 8, sintered in H 2  at 9, rolled at 11, 12 and coiled at 13. The strip which may be 0À01 on 0À015 gauge may be used as the carrier belt 10 for transporting the strip through the sintering furnace.
Patent GB-1242572-A (GB)
Title: Laminated materials
Inventor: SPENCER ROBERT ANTHONY OPENSHA
IPC: D04H13/00
Filed: 1968-05-10
Abstract: 1,242,572. Fibrous laminates. CHARLES TURNER & CO. Ltd. 14 March, 1969 [10 May, 1968; 1 Oct., 1968], Nos. 22340/68 and 13046/69. Heading B5N. A laminate comprises at least one preformed non-woven thermoplastics-bonded fibre layer having creped soft paper tissue or cellulosic wadding surface-bonded to each face by heating the thermoplastic material. The fibre layer may be a fleece of parallel or randomly-oriented viscose rayon fibres. The binder may be applied as an impregnant or coating in amount 28-32 wt. per cent of the bonded web and may be polyethylene, polyvinyl acetate, polyvinyl chloride, vinyl chloride copolymers or acrylic resin (e.g. in the form of emulsions and dispersions containing particles); cross-linking agents, plasticizers, wetting agents and wet-strengthening agents may be included. The tissue or wadding may include wet-strengthening agent. The laminate may be made by bonding continuous webs of material between heated rollers.
Patent GB-999064-A (GB)
Title: Joint sealing element and a method of using the same
IPC: E04B1/684
Filed: 1962-04-06
Abstract: 999,064. Sealing joints in concrete structures. ASPHALT - BITUMEN - ONDERNEMING "ASHBITON" N.V. April 6, 1962 [April 11, 1961], No. 13288/62. Heading E1V. A joint in a concrete road or the like is sealed by inserting in the joint a strip comprising elastic cellular material compressed and enclosed in a tube-like covering of flexible, moisture resistant, sheet material and subsequently opening the covering longitudinally to allow the inner strip to expand. Suggested materials for the inner strip are foamed polyvinyl compounds, polyurethane and viscose products and natural or synthetic rubber and are preferably impregnated with bitumen or a plastics material such as polyisobutylene with similar physical characteristics. The covering is preferably of polyethylene film or some similar material which can be opened by heating with a burner. To enable the inaccessible side of the strip in deep joints to be opened also a bearing wire or an electric heating element may be embedded in that side of the covering. The sealing element may form part of the shuttering during pouring of the concrete. Specification 800,835 is referred to.
Patent GB-785845-A (GB)
Title: Apparatus for spectrochemical analysis and structural analysis of solids, liquids and gases by means of x-rays
IPC: H01J37/00
Filed: 1955-05-09
Abstract: 785,845. X-ray analyses. ONTARIO RESEARCH FOUNDATION. May 9, 1955 [May 10, 1954], No. 13345/55. Class 40 (3). [Also in Groups XX and XL (a)] X-rays produced in a specimen 5 by an electron beam emerging from an evacuated chamber 3 through a series of open apertures, are analysed by a spectrometer 7 7 in the same chamber. A series of chambers 4 at graduated pressures maintained by pumps protect the vacuum. The chamber adjacent the specimen may be at high pressure to prevent sucking in of the specimen, especially if fluids are to be analysed. The electron beam is produced in side chamber 1, protected by pressure chambers 2, and deflected to the specimen. Pressure chambers 12 separate off the detector chamber 11 which may be or include an ionization chamber, counter, phosphor, or photographic film. The detector chamber is at the end of a movable arm through which pass the electrical and pump connections. A part of the detector chamber may be shielded from the X-rays, irradiated separately and used to check the pressure in chamber 11. The analyser may be a plane or curved crystal, grating or powder. Several types of analyser may be mounted one on top of the other, each with its own detector. Specification 777,426, [Group XL (a)], is referred to.
Patent GB-437659-A (GB)
Title: Improvements in or relating to the treatment of platinum contact masses
IPC: B65D43/26
Filed: 1934-05-03
Abstract: Platinum catalysts are regenerated by treatment with a volatile carboxylic acid other than formic acid, which is in the liquid phase or is dissolved in a volatile solvent such as water or alcohol.  The liquid may be sprayed upon the catalyst.  Suitable agents are acetic, acrylic, butyric, benzoic, lactic, phthalic, propionic, oxalic, and succinic acids.
Patent GB-1501986-A (GB)
Title: Underwater connection of a central station to a group of wells
IPC: E21B43/017
Filed: 1975-04-02
Abstract: 1501986 Underwater connections SUBSEA EQUIPMENT ASSOCIATES Ltd 2 April 1975 [5 April 1974] 13532/75 Heading F2G An undersea oil station 2 equipped with pipeconnecting means 15 is directly connected to well heads 9 or outflow pipes (not shown) by lowering the station on to a platform 1 which defines installation locations to one of which the station locks with the connecting means aligning with guides 11, 12 on the platform; whereafter at least one placing structure is lowered on to an installation location to receive a connecting structure 14 which is subsequently lowered affixed to a diving bell (not shown) and orientated to present a second pipe connecting means 13 to the said guides 11, 12 before forming a watertight connection with the well or pipe at the installation location; a sub-assembly 23 (Fig. 4) inside the bell is then manually connected to the well head or pipe, and a pipe system is connected between the sub-assembly and the structure connector 13 which is joined to the station connector 15 to establish fluid communication between the well/pipe and station before returning the bell to the surface. As shown (Fig. 1) a cable 6 passing through a guide arm 7 enables station 2 to be located on to a locking means (not shown) on a platform and positioned with a pipe connector 15 (Fig. 4) at the end of flexible piping 16 co-operating with guide means 11, 12. A connecting structure 14 having a lateral pipe connector 13 is lowered with a diving bell 18 (not shown) and with the aid of remote control means a female connector portion 20 on the structure is placed on to a corresponding male portion 10 on a well head with a pipe connector 13 on the structure aligning with a station pipe connector 15. Inside the water-tight enclosure so formed, a sub-assembly 23 is connected by crew members on to the well head, the crew then effect connection of hydraulic control pipe systems 27 for control of a connector means 33, which is then operated to effect connection between the structure connector 13 and station connector 15. Connection of a station to an outflow pipe from a distant well is effected in a similar manner, except that the installation locations are defined by a base member rather than a well head; the base receiving a placing structure equipped to receive a pivotable pipe connector at the end of the outflow pipe, the latter two members being assembled at the surface before lowering on to the placing structure by guide means, where the outflow pipe connector is received and automatically locked before proceeding in the described manner to establish fluid communication between the outflow pipe and station.
Patent GB-720215-A (GB)
Title: An invention for the conservation of heat in open fireplaces, especially domestic fires with large chimneys
IPC: F24B1/189
Filed: 1952-05-29
Abstract: 720,215. Chimney dampers. PEARSON, T. Aug. 18, 1952 [May 29, 1952], No. 13634/52. Class 126 The gas flow from the grate to the chimney of a domestic firegrate is controlled by a " hit and miss " type damper pivotally and removably placed within the chimney throat. The damper comprises a frame A' with struts A<SP>2</SP> behind which slides, in suitable grooves G, a movable shutter consisting of a frame B<SP>1</SP> and struts B'. The frame A' is provided with pivot pins Ea, Eb, the former of which is adapted for engagement with a circular recess in a bearing block F fitted to the rear wall of the chimney throat K whilst the latter rests in an open slot in another bearing block F fitted to the same wall. In order that, the damper may be placed within the throat in any one of three positions A'a, A<SP>1</SP>b or a position (not shown) with arms Ca and Cb reversed, an arm C is pivotally attached to the frame A'. The damper may be of smaller area than the chimney throat such that even when in position A<SP>1</SP>a a gas passage is left between damper and chimney walls.
Patent GB-406159-A (GB)
Title: Improvements in boxes or cases for jewellery or other light articles
IPC: A45C13/10
Filed: 1933-05-11
Abstract: 406,159. Jewellery &c. cases. HOOPER, H. S., and WHITEHOUSE, H. J., 32, Frederick Street, Birmingham. May 11, 1933, No. 13680. [Class 18.] In a moulded box or case for jewellery or other light articles, of the kind having a lid 2 hinged to a body 1 and secured by a fastening, the fastening includes a tongue 6 formed integrally on the body or lid. In the example described a headed metal pin 7 engages resiliently a recess 9. The box may be of synthetic resin.
Patent GB-560208-A (GB)
Title: An improved appliance for stopping the engines of motor road vehicles independently of the driver and preventing damage to the wheel tyres of trailers
IPC: B60K28/00
Filed: 1942-09-30
Abstract: 560,208. Automatic control of motor vehicle engines. COX, E. A., and MILLWOOD, P. Sept. 30, 1942, No. 13702. [Class 79 (v)] When a tyre j. of a trailer drawn by a motor vehicle becomes deflated the engine power is automatically cut off by means of a pivoted arm a normally out of contact with the road but adapted to come into contact therewith when the tyre j becomes deflated, the arm being thereby deflected rearwardly so as to stop the engine (not shown) by controlling a valve or switch. In the construction shown applied to a trailer carrying a gas-producer plant, the arm a is connected by a rod d to an air valve in a casing f, this valve being normally closed by a spring which also holds the arm a in a vertical position, so that when the arm is moved rearwardly by contact with the road, the valve is opened and admits air to the fuel supply pipe g of the engine and thereby'stops the supply of fuel to the engine.
Patent GB-1430011-A (GB)
Title: Figth wheel coupling
IPC: B62D53/08
Filed: 1973-03-21
Abstract: 1430011 Fifth wheel couplings GEORG FISCHER AG 21 March 1973 [21 March 1972] 13703/73 Heading B7T A fifth wheel coupling comprises a slotted plate supported on its respective sides by bearing blocks 4 adapted to be mounted on a towing vehicle, each block having a domed upper surface which locates in a recess 10 of a cushion 3 housed in a pocket 2 of the plate, a member 13 extending through the interior 16 of block 4 being bolted to walls 8, 8<SP>1</SP> of the pocket and having a central portion of U-section which houses a rubber strip 15 bearing on the top surface 18 of the block interior, the plate being then allowed limited resiliently resisted universal movement with respect to the blocks 4. In a modification member 13 is replaced by a pin which extends between walls 8, 8<SP>1</SP> of the pocket and is surrounded by a rubber sleeve.
Patent GB-437957-A (GB)
Title: Improvements in or relating to cocks and igniting devices for gas burners
IPC: H01H3/02
Filed: 1934-05-07
Abstract: 437,957. Valves. HORSTMANN, F. O., and HORSTMANN, J. H. G., Newbridge Works, NICHOLDS, D. W., Kinver, Mount Road, and HORSTMANN GEAR CO., Ltd., Newbridge Works, both in Bath, Somerset. May 7, 1934, No. 13715. [Class 135] [See also Group XI] A valve controlling a pilot burner is adapted to be opened momentarily in conjunction with the opening of the main burner cock by an axial movement of an operating element controlling the cock. As shown, the operating knob 2 of the cock 1 is slidable inwardly against the action of spring- pressed plungers 3, one at least of which has an extension 12 adapted to move a spring strip 8 and thereby open a pilot valve 7. Tne latter opens an axial passage 6 in the cock leading to a chamber 5 to which the pilot burner is connected. In a modification, the cock is slidable axially for opening a lateral byepass therein. Alternatively, the axial movement of the cock may be effected automatically during its rotation as by means of a quick thread worm or inclined plane and, in this case, the cock may be controlled from a distance. Specification 355,219 is referred to.