baber/WOPTO huggingface dataset:
Patent GB-803582-A (GB)
Title: Improvements in or relating to receiving arrangements for colour television
Inventor: COVILL DENNIS HENRY
IPC: H04N9/22
Filed: 1954-06-04
Abstract: 803,582. Television. COSSOR, Ltd., A. C. April 19, 1955 [June 4, 1954], No. 16558/54. Class 40 (3). In a colour television receiver for a N.T.S.C. type of signal and employing a picture reproducing tube 2 (Fig. 1), having a screen comprised of a repeating series of colour reproducing phosphor stripes and associated " indexing " stripes the received luminous signals are supplied, via terminal 1, to vary the intensity of the tube scanning whilst the received chrominance (sub-carrier) signal is supplied, via terminal 3 and amplifier 6, in series with the circuit supplying the line deflecting waveform to the line scanning coils 7 so as to vary the velocity of line scanning in accordance with the phase and amplitude thereof. Synchronization of the scanning of the phosphor stripes with the received chrominance signals is effected, in known manner, by controlling the line time base 10 in accordance with a control signal derived from a phase detector 8 in which signals of " indexing " frequency are compared with the locally generated reference sub-carrier supplied from terminal 4. Fig. 4 shows the trace of the electron beam relative to the colour phosphor stripes, the full straight line indicating the trace produced when the chrominance sub-carrier is not present at terminal 3, i.e. when a monochrome image is being produced, and the curved dashed line indicating the trace when the line scanning velocity is modulated in accordance with the received chrominance sub-carrier signal. In the latter case it is seen that the beam dwells on the green phosphors for a longer time than on the other colour phosphors, thus indicating that the chrominance signal is representative of green, the saturation of which increases with increase in amplitude of the sub-carrier, and as the phase of the latter varies the hue of the reproduced image varies accordingly. To prevent incorrect colour rendition when the sub-carrier represents a saturated colour the reference sub-carrier from terminal 4 is connected into a saw-tooth wave in a corrector unit 5 and combined with a proportion of the chrominance sub-carrier from terminal 3 before being supplied to the phase detector 8. The " indexing " stripes may comprise a series of conducing wire elements spaced in a regular manner with respect to colour phosphor stripes (Fig. 2, not shown) or, alternatively, similarlyspaced gaps in a metal film forming a backing for the tube screen may be employed (Fig. 3, not shown).
Patent GB-295107-A (GB)
Title: Improvements relating to feeding poultry and other animals
IPC: A01K5/02
Filed: 1927-06-23
Abstract: 295,107. Renshaw, G. A. June 23, 1927. Fixed-chamber apparatus.-Food passes from a hopper B into a measuring shoot C that is provided with two shutters c, c<1>, extending across the shoot and mounted on longitudinally arranged rods c<2>, c<3>, fixed to transverse rods c', c<5>, pivoted in the sides of the shoot. The shutter c is adjustably secured to the rod c<2> so that the amount of food contained between the shutters may be varied. The rods c<4>, c<5> carry cranks c‹, c' adapted to be actuated alternately by clockworkdriven pins c<8> to open and to close the corresponding shutters. The pins c<8> are mounted on a carrier plate c<9> slidably and rotatably mounted on a shaft c<10> driven by the minute wheel shaft of a clock D. This shaft drives through a worm e, a time setting disc E provided with a circle of holes into any one of which a peg can be inserted. One peg F is inserted in one of the holes so that at a desired time a finger f on a clutch shaft f<1> is moved to de-clutch the carrier plate c<9> from the shaft c<10> against the action of a weighted arm #<3>. When the carrier plate is clutched to the shaft it rotates and the shutters c<1>, c, are alternately raised and closed until the peg F throws out the clutch. As the clutch is thrown out a cranked rod g secured to the shaft f<1> is moved so that its cranked end is engaged in a notch on a rod g<1> fixed in a pivoted block g<x>. An arm g<3> carried by a rod g projecting from the block g<x> is adapted to be engaged by a second peg G inserted in the time setting disc and by such engagement rocks the block and permits the arm g to swing free of the, notch thus clutching the carrier plate to the shaft c<10>.
Patent GB-568828-A (GB)
Title: Improvements in gas washing apparatus of the livesey type
IPC: B01D47/14
Filed: 1943-10-12
Abstract: 568,828. Gas-washers. DEMPSTER, Ltd., R. & J., and SCOTT, J. W. Oct. 12, 1943, No. 16698. [Class 55 (ii)] [Also in Group XXVIII] In gas-washers of Livesey type provided with a horizontal perforated plate 14 separating the lower part of the casing from the outlet, a number of additional perforated screens 15, 16 are arranged in stack formation beneath the plate 14. The whole assembly may be mounted on two or more screw-threaded rods 17 so that on nuts 19 being unscrewed the screens may be separated and brought to the level of an inspection cover 20 for cleaning. Glass balls or other filtering elements may be piled loosely on plate 14 to effect a further deposition of entrained matter. Specification 537,676 is referred to.
Patent GB-769849-A (GB)
Title: A method of preventing depositions of pitch from mechanical pulp and semi-pulp
IPC: D21H21/02
Filed: 1955-06-10
Abstract: 769,849. Preventing deposition of pitch in paper making. KOPPARFORS AKTIEBOLAG. June 10, 1955 [March 9, 1955], No. 16720/55. Drawings to Specification. Class 96. Pitch naturally occurring in mechanical wood pulp or semi-pulp is caused to adhere to the fibres so as to avoid clogging wire-cloths &c. of the paper-making machine &c., by adding to the pulp a cationic, or weakly cationic (non-ionic) surface active agent in a quantity, e.g. up to 0.2 per cent on the dry pulp weight, sufficient to effect fixation, but insufficient to loosen and emulsify the pitch. As surface agents may be used salts of alkyl amines, e.g. acetates, sulphates or chlorides of long-chained hydrocarbons with three- or five-valent N- atoms such as primary, secondary, or tertiary alkyl amines, alkyl-ammonium or -pyridine bases, or (non-ionic) alkyl amines treated with ethylene oxide. Examples mention stearyl amino acetate &c. The agent may be added at various stages, e.g. in a wet machine of the pulp mill.
Patent GB-1032748-A (GB)
Title: Process for banding glass articles
IPC: H01J29/87
Filed: 1963-04-29
Abstract: 1,032,748. Casting composite articles. COMPAGNIE DE SAINT-GOBAIN. April 29, 1963 [April 27, 1962], No. 16744/63. Heading B3F. A cathode-ray tube is banded by casting around it a metal alloy which possesses a good tensile strength when cold and which can flow while it is still hot during the cooling period so as to absorb a considerable part of the contraction, the bulb being subjected to a controlled cooling after the casting of the alloy. The alloy may be an aluminium-silicon alloy, or a zincaluminium-alloy containing copper and magnesium or magnesium. The metal mould has a lining of tale, kaolin, sodium or calcium silicate and water cast in position and the tube has a protective coating of a mixture of talc, kaolin and water. The assembly is preheated to 450‹ C. for about three hours, an aluminium-silicon alloy is poured at 700‹ C. and after solidification the tube with the cast-on band is annealed by heating to 450‹ C. for about 30 minutes, followed by slow cooling to room temperature.
Patent GB-623021-A (GB)
Title: Improvements in or relating to clutch or brake friction elements
IPC: F16D69/04
Filed: 1946-06-03
Abstract: 623,021. Brake-linings. AMUNDSEN, H. R. June 3, 1946, No. 16779. Convention date, May 8, 1944. [Class 103 (i)] [Also in Group XXIV] Curved clutch or brake friction elements 2, Fig. 2, of asbestos or other composition, cooperating with an external drum surface, are secured to a contractible carrier band by transverse guiding and clamping strips 3, Fig. 3, adjustably secured to the band and having dovetail groove connections 8 with the elements, which thus present unbroken frictional surfaces to the drum and may, when the appropriate strips 3 are slackened, be individually withdrawn and replaced with the band in position. In Fig. 5, the strips 3 are secured to the band 1 by nutted screws 4, the heads of which may be attached as by welding or brazing to the strips. The latter may bear on the sides of the grooves 8 through protecting metal plates 7, shaped to fit the grooves, and having turn-up tabs 9, Fig. 7, to locate the elements in position. The outer flange portions 10 of the plates 7 may be omitted. The elements 2 may be unitary or composed of a backing plate 12, Fig. 8, of metal or other suitable material, secured as by fusing to a facing part 11 of friction material. The Specification as open to inspection under Sect. 91 describes also a clutch or brake internal shoe construction in which asbestos combination facings 14, Fig. 9 (Cancelled), are secured to a shoe 13 by channelled dovetail clamping strips 17, which may be of brass, and by squareheaded bolts 18, the strips having milled external gripping edges 28, Fig. 11 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1391641-A (GB)
Title: Air heaters
IPC: B60H1/22
Filed: 1972-04-12
Abstract: 1391641 Air heating stores; air conditioning; balanced flues MOTOR WHEEL CORP 12 April 1972 [13 April 1971] 16843/72 Headings F4S F4V and F4W  An air heating store for a mobile home or caravan comprises an open-ended outer casing 10 having knock-outs 24 which may be removed to provide heated air outlets, a partition 32 which subdivides the casing interior into a first chamber containing a burner chamber 79 with gas burners 140, at least two heat exchangers 84 for receiving the combustion products therefrom and a second chamber containing a fan 50 for blowing air through an aperture 38 in the partition 32, over the heat exchangers 84 and out of the casing through outlets 24, the end of the casing 10 open to the external atmosphere being covered by a dished plate 98 having a combustion air inlet 106 and flue gas outlets 108 for communicating with the burner box 79 and heat exchangers 84 respectively and a panel 31 having a louvred upper portion. The panel 31 includes two sets of louvre blades which slope downwardly away from one another so that the combustion air flow is directed downwardly to the opening 106. A deflector assembly 110 mounted between the plate 98 and panel 31 ensures that the combustion products flow is reduced in speed before passing through the panel 31. A heat shield 134 is provided within the dished plate 98 and the inner surfaces of the first chamber are lined with foil faced corrugated asbestos material. Baffles 146, 148, 150 within the first chamber define a chamber around the heat exchangers 84 and with the side walls 12, 14 of casing 10 heated air outlet passages communicating with outlets 24. The second chamber includes a thermostatically controlled gas valve 58 and its open end is covered by a grilled panel 51 which may include a filter. The burner chamber 79 and heat exchangers 84 are removable through the outer end of casing 10. Ducts are secured to outlets 24 to distribute the heated air to the space served by the stove, which may be mounted between an outer and an inner wall of the space. The fan motor is controlled by a thermostat 74.
Patent GB-834009-A (GB)
Title: Improvements in and relating to magnetic amplifiers
IPC: H03F9/04
Filed: 1956-05-31
Abstract: 834,009. Magnetic amplifiers. GENERAL ELECTRIC CO. May 31, 1956 [May 31, 1955], No. 16864/56. Class 40 (9). Alternating current bias is used to avoid the effects of rectifier leakage in an auto-self-excited magnetic amplifier. The output current with zero signal is reduced. An auto-excited amplifier with a core 11, a control winding 14 and a main winding 12 also has an alternating current bias winding 15 fed through an impedance 19. The bias may be produced by connecting a biasing impedance 29, Fig. 5, to a tap 27 on the main winding 26 as shown so as to provide a bi-directional path for some of the main winding current. An alternative arrangement of the biasing impedance is shown in Fig. 6. A full-wave circuit comprises two cores 36, 37, Fig. 7, having tapped main windings 38, 39 in series with rectifiers 41, 43 and condensers 42, 44. Biasing impedances 50, 51 are connected to the main winding taps 52, 53 and to the common terminal of the two condensers 42, 44. In a further arrangement, Fig. 8, the main windings 62, 63 are connected in two adjacent arms of a rectifier bridge 55, the load being connected across a diagonal. The biasing impedances 67, 71 include rectifiers so poled that the upper tapped portions of the main windings conduct in both half cycles of the supply. Specification 661,053 is referred to.
Patent GB-570347-A (GB)
Title: Method of making selenium elements
IPC: H01L21/06
Filed: 1943-10-15
Abstract: 570,347. Selenium rectifiers and photo-electric cells. STANDARD TELEPHONES & CABLES, Ltd. Oct. 13, 1943, No. 16955. Convention date, Jan. 7. [Class 40 (iii)] [Also in Groups II, V and XXXVI] In order to manufacture a plurality of selenium rectifiers or photo-electric cells at one time, a unit is formed by placing a plurality of base-plates 5, Fig. 3, in a pair of superimposed holding jigs 2a, 2b (conveniently on a supporting plate 1), then covering the base-plates with powdered selenium, removing the upper jig 2b, and causing the selenium to adhere to the baseplates (conveniently by heat and pressure between platens 7a, 8, Fig. 5, the upper one of which may have an annular projection 10 to press the edges down firmly). If the selenium elements have central holes, punches may be used to clear these holes after the pressing operation. The unit, thus made, may then be passed through a succession of apparatus for various operations, such as heat treatment at 200‹ to 215‹ C., after oven treatment, counter-electrode spraying, and finally punching out into separate selenium elements.
Patent GB-1466832-A (GB)
Title: Signal generator
IPC: G06F1/06
Filed: 1975-04-24
Abstract: 1466832 Electronic counters HONEYWELL Inc 24 April 1975 [25 April 1974] 16969/75 Heading G4A [Also in Division H3] Two-phase clock pulses I1, I2, Fig. 1, are distributed to produce pulses cyclically on terminals TS1, TS2, TS3, TS4, by a FET charge storage cyclic shift register 26, 30, 36, 22, and a set of gates, such as 42, 46, connected to the outputs of the register. In operation the pattern "1100" is set into the register by a start pulse circulated. When an output, such as TS2, 3 is low i.e. when the output of FET 30 is high (=1), and therefore the gate input to FET 42 is high, the next Il clock pulse produces an output "1" at TS3, which terminates either when the I1 clock pulse terminates or when the next I2 clock pulse occurs if there is a slight overlap.
Patent GB-1042572-A (GB)
Title: Method of depositing coatings on a non-conducting surface
IPC: H01J9/22
Filed: 1965-04-22
Abstract: A non-conducting surface e.g. a glass cathode ray tube, is coated with a phosphor or like luminescent material electrophoretically, but first the glass surface is rendered conductive by coating with a metal e.g.  In or Au, and after coating electrophoretically, the metal layer is removed e.g. by soaking in an alkali cyanide which forms a soluble metal compound. Preferably the cleaned glass surface is given a thin coating of Al, followed by Au, and a final coating of In, all formed by vapour deposition. Each layer is a few A DEG thick.  The electrophoretic bath consists of a dispersion of zinc sulphide, zinc cadmium silicate, or zinc magnesium silicate, in ethyl alcohol containing a little dissolved thorium nitrate, and is applied at 150 V for a few seconds giving a coating of 4m  thickness. The coated screen is then soaked in dilute KCN solution and rinsed in several stages, by which the metal layers are dissolved away through the porous phosphor layer.
Patent GB-543377-A (GB)
Title: Improvements in or relating to absorption refrigerating systems
IPC: F25B15/10
Filed: 1940-11-28
Abstract: 543,377. Refrigerating. ELECTROLUX, Ltd. Nov. 28, 1940, No. 17019. Convention date, Jan. 4. [Class 29] Absorption systems.-In a continuous-cycle inert gas system strong solution flows from above an apertured partition in the absorber 17 through a conduit 23 of a liquor and vapour heat exchanger and issues through a restricted opening 26 in the closed end of the conduit 23 to the outer conduit 25 of the exchanger, while vapour from the generator 11 bubbles through this liquid and is thereby analysed before passing along the vapour space of the outer conduit, which serves as a rectifier. The generator includes the usual heated pumping coil 10 delivering to a separate vessel 15, from which weak liquid flows to the absorber through an inner conduit 28 of the liquor heat exchanger. The restriction 26 should be of such size as to maintain the conduit 23 and the end of conduit 25 flooded. A pool of solution is formed in a vessel 21 below the absorber partition, connected by a small bore conduit 22 with generator 11 and forming a dead end for liquid. This liquid absorbs or evolves vapour from or to the gas mixture in the absorber according to the partial pressure of the refrigerant vapour there, and thus varies automatically the concentration of the liquor actually in circulation in accordance with the refrigerating load. Specifications 516,912 and 526,977 are referred to.
Patent GB-122819-A (GB)
Title: Improvements in and relating to Aromatic Arsenical Compounds.
IPC: C07F9/74
Filed: 1918-10-21
Abstract: The salts with acids of the arseno compounds described in the parent Specification, are useful in the treatment of syphilis &c., the hydrochloride and sulphate of p-arsenophenylglycine-bis-m1-oxyanilide are specified.
Patent GB-1212105-A (GB)
Title: Production of malonodithioamides
Filed: 1968-04-10
Abstract: 1,212,105. Malonodithioamides. BADISCHE ANILIN- & SODA-FABRIK A.G. 10 April, 1968 [12 April, 1967], No. 17183/68. Heading C2C. Malonodithioamides which may bear a single substituent other than an amino group on the α-carbon atom are produced by reacting an α- aminomalononitrile having two substituents on the N atom and optionally having a substituent other than a second amino group on the α-carbon atom with at least a stoichiometric amount of H 2 S. The reaction is preferably carried out at a temperature of -30‹ to + 50‹ C. in the presence of an inert solvent and a catalyst. Suitable catalysts are secondary and tertiary amines. In the examples, N,N- dimethylaminomalononitrile is converted to malonodithioamide.
Patent GB-443073-A (GB)
Title: Improvements in or relating to tins, canisters and like containers
IPC: B65D51/18
Filed: 1935-06-17
Abstract: 443,073. Closures for tins. ROBINSON, F. G., Canister Works, Southcoates Lane, Kingston-upon-Hull. June 17,1935, No. 17342. [Class 125 (iii)] A vacuum closure for a tin &c. has a packing ring 5 carried on the rim of the body of the tin 1 which co-operates with an inner closure 4 and in some cases also with the outer lid 1. This packing may serve for resealing the tin after opening or the outer lid may be provided with a second packing member. The inner rim of the body comprises an inwardly directed and downwardly recessed flange. The second packing member may be carried in an annular groove on the outer lid. The rim of the body of the tin may be integral therewith or attached thereto.
Patent GB-1311936-A (GB)
Title: Multielement shaft encoder incorporating and intermittent drive
IPC: H03M1/00
Filed: 1970-04-13
Abstract: 1311936 Encoders LEAR SIEGLER Inc 13 April 1970 [18 Aug 1969] 17342/70 Heading G4H A gear 24 (Fig. 1) driven from an input shaft 20, drives via gear 18, a fine shaft encoder 14, a coarse shaft encoder 12 being stepped for each predetermined amount of revolution of the fine encoder by a geneva gear mechanism 30, 38, 46 and gear 16. As described each encoder has four tracks of opaque and transperent markings in a unit distance code, the outer track of the coarse encoder and the inner track of the fine encoder being sensed twice by phase displaced photocells to give a tenbit output. The photocells may be phototransistors. The markings may alternatively be reflective, conductive or magnetic. The apparatus may be used as an altimeter.
Patent GB-694484-A (GB)
Title: Improvements relating to combustion equipment for gas turbine engines
Inventor: JOHNSON FRANCIS MURRAY
IPC: F23R3/14
Filed: 1949-06-30
Abstract: 694,484. Generating combustion products under pressure. ROLLS-ROYCE, Ltd. June 8, 1950 [June 30, 1949], No. 17383/49. Class 51(i) [Also in Group XI] In an air jacketed type of combustion chamber in which the flame tube has an annular, sharplydivergent inlet wall portion 26, an annular' divergent ring 29 is disposed within the inlet wall 26 to define therewith an annular convergent duct 30 through which air is delivered to the combustion space within the flame tube. A sleeve 33 is provided between the ring 29 and the fuel injector 22 to form an annular passage 35 having swirl vanes 34 for a subsidiary flow of primary air, and an annular passage adjacent the fuel injector for a further subsidiary flow of primary air. The ring 29 is supported from the inlet wall 26 by means of tubular spacer members 31 and bolts 32. The invention is applicable to combustion chambers comprising a series of flame tubes either each in its own air casing or all in a common annular air casing, or combustion chambers comprising an annular flame tube in an annular air casing. Specification 694,483, [Group XI], is referred to.
Patent GB-454045-A (GB)
Title: Improved process and machine for scutching flax and the like
IPC: D01B1/30
Filed: 1935-06-17
Abstract: 454,045. Scutching flax and the like. DECUYPERE, C., 35, Schelpenstraat, Rekkem, and DUJARDIN, M., 191, Meenenstraat, Lauwe, both in Belgium. June 17, 1935, No. 17406. Convention date, March 29. [Class 120 (i)] Flax and like textile material is scutched by feeding a layer of stalks to the action of two series of blades moving in a substantially rectilinear path and arranged so as to impart substantially constant angular deviation, selected according to the material, in the layer, the stalks being preferably acted upon successively from each end towards the central portions of the material. The complete machine is shown diagrammatically in Fig. 1, the material being conveyed by rollers A provided with a rippling-comb to breaker rollers D and from thence by reversible belt conveyers E and rollers F, F<1> to the scutching-apparatus 1, 2 in succession. The scutching-apparatus comprises blades 7, Fig. 3, secured to plates 5 carried on chains 4, projecting pieces 8 and fixed guides 9 securing a rectilinear movement and a constant angle of inclination of the blades to such movement. The chain-wheels 12 of one of the chains are driven through resilient couplings so that when running free opposing blades are in contact but are capable of yielding in accordance with the nature of the material being treated. The wheels are provided with abutments 13, 14, and are freely mounted on the driving-shaft, on which are keyed an abutment 15 and stops 16, 17. A spring 10 is mounted between the abutments 13, 15 through which the wheels are driven in the direction of the arrow, and adjustments of the stops 16, 17 determine the mutual pressure between the blades when in contact and the extent of their separation. The spring 10 is such that when the material is being withdrawn and is weak the blades are in virtual contact. The top roller A is eccentrically mounted, as shown in Fig. 2, and the bottom roller is rubber coated. A rippling-comb B and a limit bar C are carried by the top roller. Flax is inserted between the rollers and lined up to the bar C when the rollers are in the position shown in Fig. 1 ; the comb B is then turned to bring it close to the lower roller and to bring the rollers into contact, whereupon feeding and deseeding commences. A wetting-apparatus may be provided for use in dry weather, and the machine may be mounted upon a carriage for operation in the field.