baber/WOPTO huggingface dataset:
Patent GB-1348104-A (GB)
Title: Electro-slag refining process and apparatus
IPC: C22B9/187
Filed: 1972-06-09
Abstract: 1348104 Electro-slag refining systems BOHLER & CO AG GEBR 9 June 1972 [9 June 1971] 26997/72 Heading H2H An electroslag refining process in which a consumable electrode is remelted to form an ingot comprises the steps of using a first electrical transformer for the remelting of the greater part of the electrode and using a second electrical transformer for the "top end" heating of the electrode, the second transformer having a lower electrical power rating than the first transformer. The means for switching to one transformer from the other can be of any suitable kind and whilst the "top end" heating transformer is being used in one process the first transformer can be employed in the production of another ingot.
Patent GB-370822-A (GB)
Title: A process for preventing the formation of sulphuretted hydrogen in combustible gases during the removal of benzol therefrom
IPC: C10K3/00
Filed: 1931-09-28
Abstract: The formation of sulphuretted hydrogen during the removal of benzol from combustible gases by means of active carbon, is prevented by mixing the carbon with sulphuretted hydrogen-fixing substances. Oxides of zinc, lead, copper, tin, nickel, and iron are specified and in the proportion of 1 per cent.
Patent GB-911601-A (GB)
Title: Improvements relating to the valves of pneumatic tyre tubes and other inflatable articles
Inventor: WALDRON FELIX WALTER
IPC: B29D30/00
Filed: 1958-08-22
Abstract: 911,601. Valves. DUNLOP RUBBER CO. Ltd. Aug. 11, 1959 [Aug. 22, 1958], No. 27004/58. Class 135. [Also in Group V] The stem of a valve for use with inflatable articles such as pneumatic car tubes has an externally screw-threaded portion 1 and a butt portion having a recess 2 and an enlargement 3 for anchoring it to a moulded rubber base 4. An enlarged part 5 having a frustoconical seating 6 is provided to engage a seating in the mould to prevent rubber from contacting the threads 1 during moulding.
Patent GB-535346-A (GB)
Title: Improvements in or relating to binding posts
IPC: B42F13/00
Filed: 1939-10-03
Abstract: 535,346. Bookbinding. MAIR, H. E. Oct. 3, 1939, Nos. 27077 and 31579. [Class 16] [Also in Group XXV] A screw threaded clamping-device for binding-posts for loose leaf ledgers &c.' comprises a headed sleeve a with a blind bore tapped to receive a screw threaded sleeve i loosely mounted on the reduced end of a bolt member d having a milled head e the sleeve and bolt having clutch teeth h that permit screwing up only. A spring washer may be placed between the sleeve and the retaining head j. The head may have a nick for a screw driver and this may also be shaped to permit screwing-up only. Holes may be provided in the head for engagement by a pin spanner and these may lead into inclined arcuate slots on one side to prevent unscrewing. A round head having a sharp edge that cannot be gripped by pliers may be used, the heads may be conical to engage countersunk holes.
Patent GB-182380-A (GB)
Title: Improvements relating to the mounting of inset rubber studs in the tread portions of boots and shoes
IPC: A43C15/16
Filed: 1921-10-13
Abstract: 182,380. Yeomans, R. L., Stancliff, H., and Ibbetson, J. A. Oct. 13, 1921. Inset wearing-parts.- In the mounting of inset rubber studs 4 in metal bushes 2 in the treads 1 of boots and shoes the walls of the bushes are provided with inwardly projecting prongs 3 to retain the rubber studs in position.
Patent GB-1186033-A (GB)
Title: An Improved Clip
Inventor: OVERHOFF HEINRICH
IPC: B60R13/02
Filed: 1967-06-13
Abstract: 1,186,033. Clips; stud fastenings. A. RAYMOND. 13 June, 1967 [14 June, 1966], No. 27195/67. Heading E2B. A resilient plastics clip for securing a moulding to a curved apertured surface comprises a head 11 and a pair of legs 13, 14 bowed outwardly near the head and then inwardly so that their free ends 15, 16 are close together. The head may have a flanged skirt 17 and lugs 19 and 20, the moulding engaging between the lugs and the skirt.
Patent GB-891447-A (GB)
Title: Light and heat stable cellulose fibrous products and process for making them
Inventor: MITCHELL REID LOGAN
IPC: D21C/
Filed: 1960-08-05
Abstract: Cellulose fibres are treated with an aqueous solution containing not more than 4% sodium hydroxide and then reacted with 0,1-5% ethylene oxide, based on the dry weight of the cellulose. Preferably, 1% to 3% sodium hydroxide solution is used at from 5 DEG -50 DEG C., and less than 3%, preferably about 1% ethylene oxide substitution is effected by reaction at from 20 DEG -90 DEG C. under conditions such that 50% conversion efficiency is attained.  The product is fibrous, exhibits improved whiteness stability on exposure to heat and light, and is substantially insoluble in 5% sodium hydroxide solution.  U.S.A. Specification 2,614,102 is referred to.
Patent GB-944339-A (GB)
Title: Improvements in or relating to means for separating flat sheet-like articles
IPC: B65H3/12
Filed: 1961-07-27
Abstract: 944,339. Feeding sheets. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. July 27, 1961 [July 30, 1960], No. 27289/61. Heading B6B. In apparatus for separating flat articles 5, such as sheets or letters, from a pile by means of a suction belt 1, means is provided to prevent the separation of more than one article at the same time comprising a yieldably mounted hollow member 10 supplied with compressed air and having an aperture 14 therein facing the belt 1, and a rib or boss on the operative face 12 which spaces the member 10 from the belt. When two superposed articles 8, 9 are separated by the belt, the air blast from the aperture 14 against the lower article 9 is directed transversely of the face 12 and creates a partial vacuum over that face, and therefor detaches the article 9 from the article 8. The belt. 1 has spaced groups of apertures 2 therein, and is movable over slots 24 of a suction chamber 4. The member 10, yieldably urged towards the belt 1, is carried by a pivoted hollow arm 11 connected to a source of compressed air, and has an inclined guide 13 on the leading edge. The face 12 may be ribbed and inclined to the belt 1; or it may be disposed parallel to the belt, Fig. 4a, and have a boss 17 thereon. An additional aperture 19 in the guide 13 to direct air towards the pile may be provided to assist separation, and a further aperture could be provided in the boss 17 to provide an air cushion for that boss. In a further modification (Fig. 5, not shown), there are two transversely-aligned blowing members 10, and an intermediate central suction member which arrests loosely attached double articles. Two or more compressed air members 10 may be mounted in spaced alignment along the path of the belt 1. In yet another modification, the sheets &c. 5 are separated by a suction drum, and the blowing member is curved to co-operate with the drum surface.
Patent GB-645810-A (GB)
Title: Improvements in or relating to industrial trucks
IPC: B60K5/00
Filed: 1948-10-20
Abstract: 645,810. Vehicle suspensions. ELECTROHYDRAULICS, Ltd., and SHARP, C. W. Oct. 20, 1948, No. 27295. [Class 10&(ii)] In a load-lifting industrial truck the axle 8 is mounted on the frame side plates 1, 3 by means of a flexible bush 6. The outer periphery of the bush is secured to the flange 4 and the inner surface to a metallic ring 7 preferably having an interference fit on the axle.
Patent GB-323228-A (GB)
Title: Improvements in and in connection with electric batteries
IPC: H01M50/147
Filed: 1928-09-25
Abstract: 323,228. Wilderman, M. Sept. 25, 1928. Absorbents; cells; separators; gas exits.-The electrolyte in an accumulator is absorbed almost entirely in the separators which are of great porosity and may be made of porous ebonite. The separators may be ribbed and may extend beyond the plates in all directions as shown at m in Fig. 1, the plates being supported on members e provided with apertures k for the passage of electrolyte. The container is of celluloid and the lugs a, b are surrounded by celluloid sleeves g cemented to the cover by discs h. The gas vent c may be of the kind described in Specification 319,198. Fig. 4 shows a form of cover when the container is made of ebonite. The lugs a, b pass through bosses r containing a sealing ring g<2> and a gland h<2>, a space s being provided round the edge of the cover for a sealing of pitch &c. The bosses r may be prolonged into tubes as shown in Fig. 6. Specification 118,092 also is referred to.
Patent GB-522728-A (GB)
Title: Improvements in or relating to dog spikes for securing railway and like rails, or chairs therefor, to sleepers
IPC: E01B9/08
Filed: 1938-09-22
Abstract: 522,728. Rail spikes. MILLS, Ltd., EXECUTORS OF J., and MACBETH, A. Sept. 22, 1938, No. 27602. [Class 89 (ii)] In fastening rails or chairs to wooden sleepers a spike is employed with a head part in the form of a loop 21, Fig. 1, which is so shaped that when driven into position as shown in Fig. 3 the loop is placed in tension. A tail part 22 may be inclined as shown in Fig. 1 for this purpose. A wooden bush 26 may be fitted in the hole in the chair before insertion of the spike. The part of the shank in the vicinity of the loop may be cranked so that when driven into position the shank is straightened. In a modification, the spike is driven into the sleeper alongside the base of the rail, the end 22, Fig. 9, of the loop engaging the side of the rail base.
Patent GB-992066-A (GB)
Title: Raising mechanism for tipping vehicles
IPC: B60P1/16
Filed: 1961-07-31
Abstract: 992,066. Tipping vehicles. P. GOUIN. July 31, 1961 [Nov. 19, 1960], No. 27655/61. Heading B7B. A tipping vehicle has a jack 46 pivotally connected at 34, and 36 to arms 31, 32 pivoted at b and d to the chassis and body respectively for tipping the body B2.
Patent GB-223414-A (GB)
Title: Improvements in speed, time and distance recorders for vehicles
IPC: G07C5/12
Filed: 1923-11-03
Abstract: 223,414. Thomson, H. Nov. 3, 1923. Speed -indicators with recording apparatus; time-distance recorders.-In the arrangement shown in Fig. 1 the record strip 1 is moved by a drum 6 which is driven by the mileage mechanism of a speedometer 7. The indicating hand of the speedometer carries a lever 8 which marks a speed curve 10 on the strip, and a clock 11 moves by its minute hand on arm 12 which marks a time curve 14 on the lower part of the strip. Fig. 2 shows an arrangement in which the paper strip 15 is rotated by clockwork and the speedometer has an arm 18 which traces a speed curve 20. An arm 21 moved by the mileage mechanism of the speedometer traces a distance curve 20<a>. The screw-and-nut mechanism 22 permits the arm 21 to be returned at the end of its stroke.
Patent GB-1368419-A (GB)
Title: Crystal controlled frequency discriminator
IPC: H03D3/20
Filed: 1973-06-11
Abstract: 1368419 Frequency demodulator; FSK demodulator SINGER CO 11 June 1973 27712/73 Headings H3A and H4P A frequency demodulator comprises a shift register 18 responsive to a crystal controlled clock source 20, 22 for providing a constant delay to a frequency modulated input signal, a gate 28 coupled to receive the direct as well as the delayed input signal for producing constant energy output pulses whose mark to space ratio is dependent on the phase difference of the two applied signals. The constant delay is normally arranged to be “ the time period of the centre frequency of the incoming modulated signal (equivalent to a phase shift of 90 degrees) and is determined by the number of stages in the shift register 18 as well as by the clock frequency. In operation, the incoming modulated signal is limited at 12 and applied to an exclusive OR circuit 28 directly as well as via the shift register 18 which produces varying phase shift upon frequency deviations from the centre frequency. This results in output pulses from 28 having a mark to space ratio dependent on the frequency deviations from the centre frequency. These output pulses are integrated at 32 to obtain the demodulated output. The demodulator described above may be used as a FSK demodulator to obtain a two level output from integrator 32 which may be further applied to a differential amplifier 38 to obtain a two level output with well defined and sharp edges suitable for application to a computer or a teletype.
Patent GB-1504819-A (GB)
Title: Method for making activated carbon
IPC: C01B32/336
Filed: 1976-07-02
Abstract: 1504819 Activated carbon AMERICAN MINECHEM CORP 2 July 1976 [3 July 1975] 27724/76 Heading C1A [Also in Division C5] Activated carbon is made by (a) dispersing carbonaceous and non-carbonaceous fine particles in a suspension liquid to form a slurry; (b) adding to the slurry a liquid lyophobic to the suspension liquid and the non-carbonaceous fine particles and lyophilic to the carbonaceous fine particles to form a mixture; (c) agitating the mixture to preferentially agglomerate said carbonaceous fine particles while the non-carbonaceous fine particles remain substantially unagglomerated in the mixture; (d) separating the agglomerated carbonaceous fine particles from the mixture; (e) carbonizing the separated agglomerated carbonaceous material and (f) activating the separated agglomerated carbonaceous material to form activated carbon. Preferably, the starting material is crushed non- coking anthracite or bituminous coal, in which the carbonaceous particles are coal and the non- carbonaceous fine particles are ash, but in addition lignite, carbon black and coke-oven and wood pitches may be used. Water is the preferred suspension liquid and the agglomerating liquid may be a hydrocarbon, especially light oil, light or heavy fuel oil, or kerosene. Separation may be effected by screening, elutriation or using a cyclone or spiral separator. Carbonization and activation may be effected at least partially concurrently by gas activation, preferably by heating the agglomerated carbonaceous fine particles to at least 450‹ C., desirably at least 500‹ C., in the presence of steam. Typically the carbon product has a carbon content of about 96% and an internal surface area of about 3500 sq. ft./gm. In a modification, after separating the agglomerated carbonaceous fine particles and prior to carbonizing and activating, a carbonizable binder liquid is added to the agglomerate to form a second mixture which is agitated to pelletize the agglomerated carbonaceous fine particles. Suitable binder liquid includes heavy hydrocarbons such as coke-oven coal tar, oil shale crude, petroleum crude and heavy fuel oil.
Patent GB-954985-A (GB)
Title: Heterocyclic bisnaphthenic esters
IPC: C07D309/06
Filed: 1960-08-11
Abstract: The invention comprises compounds of formula: <FORM:0954985/C2/1> in which A is an alkylene chain containing 2 or 3 carbon atoms and R and R1 each represent a naphthenic acid residue containing 8-30 carbon atoms. They may be prepared by reacting a glycol of formula <FORM:0954985/C2/2> with a naphthenic acid having 9-31 carbon atoms at elevated temperature, preferably in the presence of an esterification catalyst.  The naphthenic acids used may be extraction products of crude petroleum oils and in that case would be a mixture of naphthenic acids. The preferred reaction temperatures are in the range 100-300 DEG C. and if desired a water container may be used. Suitable esterification catalysts are organic and inorganic acids, metallic zinc and boronfluoride. Suitable water containers are, for example, hydrocarbons.ALSO:Naphthenic esters of the formula: <FORM:0954985/C3/1> in which A is an alkylene chain containing 2 or 3 carbon atoms and R and R1 each represent a naphthenic acid residue containing 8-30 carbon atoms, are used as plasticizers for vinyl halide homopolymers and copolymers with other vinyl type monomers. Examples are given of the use of the naphthenic esters as plasticizers for a polyvinyl chloride resin and also copolymers of vinyl chloride with vinyl acetate, vinylidine chloride, methyl acrylate and vinyl isobutyl ether.
Patent GB-737539-A (GB)
Title: Treating tanks for photographic films
IPC: B01F5/10
Filed: 1953-10-09
Abstract: 737,539. Processing tanks. DEBRIE, A. V. L. C. Oct. 9, 1953 [Oct. 11, 1952; May 11, 1953], No. 27893/53. Class 98 (2). A tank for processing photographic films is connected by upper and lower passages below the liquid level to an auxiliary tank, the crosssection of the passages being of a size comparable with that of the auxiliary tank, and the liquid is circulated through the tanks by means of a screw or propeller in the auxiliary tank, driven by a motor. The tanks may be fitted with deflectors and any rollers in the treating- tank round which the film is passed may be partially enclosed by hull-like members to assist in streamlining the liquid flow. The liquid may be circulated in either direction. The apparatus may comprise a single tank fitted with a suitable partition to define a treating- tank for the film and an auxiliary tank connected by upper and lower passages. As shown, a processing-tank 1 is connected to an auxiliary tank 2 by passages 3 and 4. The liquid is circulated in the direction of the arrows by a blade 12, driven by the motor 8. The tanks are provided with deflectors 21, 22 and 23, and a hull-like member 26 surrounds the lower rollers over which the films 25 pass to give a streamlined flow to the liquid. The hulllike member may have a longitudinal aperture in its base to direct the liquid onto the film.
Patent GB-1512254-A (GB)
Title: Stabilized frequency oscillator circuits
IPC: H03B5/38
Filed: 1975-07-02
Abstract: 1512254 AFC systems SONY CORP 2 July 1975 [5 July 1974] 27924/75 Heading H3A A frequency synthesizer with reduced response time and improved frequency stability characteristics comprises a VCO 3', an arrangement 8-10 including an adder 8 and detectors 9, 9' connected to receive the oscillator output via two signal paths (one direct and one via an ultra-sonic delay line 5) having a relative time delay, and providing an output signal applied as at least part of a control signal for locking the oscillator 3' to a desired frequency. Frequency stability occurs when the phase shift in the line is an integral multiple of 360 degrees and operation at the different stable frequencies may be selected by a control signal (not shown) applied to the oscillator 3<SP>1</SP>. In the modification of Fig. 7 (not shown), frequency increments (or decrements) are obtained by causing the capacitor 13 to charge (or discharge) by triggering of an associated bi-stable flip-flop by input pulses. The arrangement of Fig. 9 (not shown) includes a sweep circuit disabled when frequency locking is achieved. In the arrangement of Fig. 10 (not shown), the oscillator output is applied to the adder via a signal path including a phase shifter whose phase shift is advanced or retarded in steps of 90 degrees by applied control pulses to change the oscillation frequency to a different stable value.
Patent GB-1467624-A (GB)
Title: Sensing arrangement in an automatic lateral guiding system on a mobile harvester
IPC: A01D41/127
Filed: 1975-07-02
Abstract: 1467624 Measuring lateral displacement of a moving vehicle MASCHINENFABRIK FAHR AG GOTTMADINGEN 2 July 1975 [17 July 1974] 27936/75 Heading G1N Apparatus for sensing the position of a mobile harvester relative to a row of stalk plants 13, Fig. 3, comprises two spring-biased sensing rods 14, 15 mounted on the harvester, each rotatable about a vertical pivot 16, 17 respectively to vary the position of a slider on a potentiometer 20, 19, the  latter being connected in series as shown between terminals 21, 22. If the harvester is correctly located relative to the row of plants 13, the displacement angles B1, B2 of the rods 15, 14 when they rest on plants are equal and the total resistance between terminals 21, 22 is R. If the harvester is incorrectly located, the angles B1, B2 are unequal and the total series resistance deviates from R by an amount corresponding to the extent and direction of lateral displacement of the harvester, and may be used to correct the position of the harvester relative to the row of plants.
Patent GB-533193-A (GB)
Title: Improvements in the manufacture of electric heating resistances
IPC: H01B3/08
Filed: 1939-10-17
Abstract: 533,193. Sheathed electric heating resistances. BRITISH THOMSON - HOUSTON CO., Ltd. Oct. 17, 1939, No. 28020. Convention date, Oct. 19, 1938. [Class 39 (iii)] [Also in Group V] An electric heating resistance of the kind wherein the resistance element is embedded in a refractory insulating product enclosed by a metallic sheath or casing is made by mixing in powder form refractory and electrically insulating hydrated substances with reducing metals in powder form, placing the mixture in the sheath or casing where it is to be used and heating so as to decompose the water of the basic material. Powdered stealite, hydrated silica, hydrated silicates of alumina or of alkaline earth oxides may be used with magnesium, aluminium, cerum or calcium as the reducing metal. A small amount of potassium, magnesium or like nitrate may be added to prevent action of the metal on the silica of the silicate and peroxides of magnesium or barium may be added to prevent reduction of the silicon.
Patent GB-1236696-A (GB)
Title: Improvements in or relating to slow-running adjustment devices in internal combustion engine carburetttors
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M3/10
Filed: 1969-06-03
Abstract: 1,236,696. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. June 3, 1969 [March 3, 1969], No.28024/69. Heading F1B. The needle valve 7a controlling flow through the idling passage 5 has an abutment 17 which engages a sleeve 12a force fitted in the carburetter body 10 to determine the maximum permissible flow. The abutment 17 may be a shoulder machined on valve 7a.
Patent GB-711763-A (GB)
Title: Improved synchroniser apparatus for prime movers
IPC: H02P5/50
Filed: 1952-11-07
Abstract: 711,763. Automatic synchronizing systems. GENERAL MOTORS CORPORATION. Nov. 7, 1952 [Nov. 23, 1951],. No. 28055/52. Class 38(4) Three double-wound relays 12 ... 14 have one winding of each connected in delta and energized from a three-phase alternator 4 driven by the slave engine 2, while the other windings are connected in series and energized from one phase of an alternator 3 driven by the master engine not shown in Fig. 1. When the engines are in synchronizm the relays operate together, but asynchronizm causes sequential operation of the relays (in a sense and at a rate depending on the deviation) to control a. three-phase followup motor 34 which varies the propellor pitch of the slave motor. Spark-quenching rectifiers 26, 27 are shown across the relay contacts.
Patent GB-846097-A (GB)
Title: Improved control means for aircraft
Inventor: GRIFFITH ALAN ARNOLD
IPC: B64C9/38
Filed: 1956-09-13
Abstract: 846,097. Aircraft. ROLLS-ROYCE Ltd. Sept. 13, 1957 [Sept. 13, 1956], No. 28076/56. Class 4. An aircraft has a lifting surface with a slotted formation in the leading edge, and means for discharging compressed air forwardly through the formation and for varying the ultimate direction or thrust of the discharge to vary the lift coefficient of the surface. In the embodiments described, the aircraft is of isosceles triangular plan form, with banks of jet engines disposed at each of the trailing base angles. Ducts from the engine compressor stages feed wing leading edge slots. In Fig. 2, two slots are formed between the leading edges of the wing skins 11, 12 and a roller 10a beaked at 16. The discharged gases follow the contour of the roller and beak and the direction of discharge is controlled by rotating the roller. In Fig. 3, the leading edge is formed by flaps 18 and 19 with sharp edges 20, 21 forming a slot 22. The width of the slot is varied by moving the flaps in opposite directions, varying the thrust and the direction of discharge is varied by moving the flaps in the same sense. In Fig. 4, the leading edge of the wing is divided by a partition 26 into compartments 27, 28, having slots 29, 30, respectively. Air at a controllable pressure is blown from one or other slot, depending in the direction of the control force required. Air may be sucked into the unused slot to prevent separation of the airstream at that slot. Specification 660,953 is referred to.