baber/WOPTO huggingface dataset:
Patent GB-1516493-A (GB)
Title: Navigational aid
IPC: G06G1/00
Filed: 1977-01-19
Abstract: 1516493 Determining courses UNISEARCH Ltd 19 Jan 1977 [23 Jan 1976] 02125/77 Heading G1F A navigation aid comprises three transparent indicea-bearing members, the first 11 bearing a ground speed scale 17, the second 12 a true air speed (TAS) scale 23, and the third 13 a wind-speed scale 25 and-direction indicator 24, and either the first or second scale bearing a compass rose 20; the three members lying in parallel juxtaposed planes with two of them pivotally connected together at 18 about the origins of the scales and the other connected to one of the two at the origin of its scale by a pivotal and linear-sliding connection 15. The first member 11 also carries an array of scales 26 representing distance intersected by constant time curves for use in determining flight times for known speeds and distances. The relative directions of the ground and air velocity vectors are represented by the angle between the scales 23, 17, the TAS by the position of the pivot 15 of the member 13 along a slot 14 of the scale 23, while the wind velocity vector is represented by the intersection of the scale 25 with the scale 17 when the direction indicator 24 is set at the wind direction; the compass rose enables all three vectors to be aligned with north on a map. Two scales 17 are provided for whether the wind is to be offset to the left or right as shown by the + and - signs on the compass rose.
Patent GB-1137391-A (GB)
Title: Improvements in or relating to breakwaters
IPC: E02B3/12
Filed: 1965-01-18
Abstract: 1,137,391. Blocks for breakwaters. D. P. BERTLIN and P. C. MORNEMENT, [trading as BERTLIN & PARTNERS]. 18 April, 1966 [18 Jan., 1965], No. 2129/65. Heading E1H. Integrally cast concrete blocks for the outmost layer of the wall of a breakwater each consist of an elongate intermediate member 12 extending between a pair of opposed end members 4 which project transversely from the ends of the intermediate member and the profile of the end members includes a recessed side region 8, able to receive a portion of the intermediate member of a further corresponding block. By laying the blocks in staggered rows along the breakwater from the lower end of the breakwater face or wall the blocks are interlocked with each other.
Patent GB-866419-A (GB)
Title: Catalytic reactor
Inventor: BETTS WELSLEY DONALD
IPC: B01J8/18
Filed: 1959-01-29
Abstract: <PICT:0866419/III/1> An apparatus for effecting catalytic reactions comprises a receptacle for a fluidised catalyst bed having at an upper portion an inlet gas header with a plurality of gas pipes depending therefrom and terminating in a bed of granular material which supports the catalyst bed without being fluidised, the gas pipes being furnished with constricter nozzles to maintain uniformity of gas distribution.  Preferably the apparatus is provided with (a) an outlet above the inlet gas header, there being a passage or passages for the product through the header or between the header and a wall of the receptacle; and (b) an evaporater for reactant supported within the granular bed by a secondary gas pipe or pipes. In the embodiment shown, the catalyst is supported on a bed 13 of inert material, such as gravel, and the reactor head 1 contains two concentric shells 2 and 3, 2 supplying primary air through pipes 9 surrounding the central pipes 4 which depend from 3; a water cooling coil 11 is located in the interstices of the primary tubes.  An evaporator 5 for reactant is supported within the bed 13 by the pipes 4.  The apparatus may be applied to the oxidation of naphthalene to phthalic anhydride.
Patent GB-933221-A (GB)
Title: Improvements relating to powder mixers
IPC: B01F29/62
Filed: 1959-01-21
Abstract: 933,221. Powder mixing appliances. APEX CONSTRUCTION Ltd., and W. C. PECK. Jan. 1, 1960 [Jan. 21, 1959], No. 2262/59. Class 86. A powder mixer comprises a mixing vessel having a central cylindrical portion 1 and end portions 2, 3, each end portion being in the form of a frustum of an oblique cone. The vessel is rotated about an axis, perpendicular to the axis of the cylindrical portion, by an electric motor 7 through gearing enclosed in a casing 8. The axis of rotation may be horizontal or inclined to the horizontal. The ends of the vessel are provided with a large detachable inlet cover 5 and a smaller discharge outlet or valve 4. Specification 815,585 is referred to.
Patent GB-799181-A (GB)
Title: Process of preparing substantially pure terephthalic and isophthalí¡í¡
IPC: C07C51/42
Filed: 1957-01-22
Abstract: Terephthalic acid and isophthalic acid are separately recovered from mixtures containing them and other aromatic acid impurity by treating the mixture with a sufficient amount of a saturated monocarboxylic acid solvent, containing 2-4 carbon atoms, to dissolve all the isophthalic acid and aromatic acid impurity at a temperature near the boiling point of the solvent, separating the solution of isophthalic acid from the undissolved terephthalic acid and recovering the isophthalic acid by crystallization. Acetic acid, monochloracetic acid, propionic acid, butyric acid and isobutyric acid may be used as solvents.  The two examples describe the oxidation of mixed xylenes in acetic acid and the treatment of the oxidation product with additional acetic acid to obtain pure terephthalic and isophthalic acids.
Patent GB-1450771-A (GB)
Title: Plate filter presses
IPC: B01D25/172
Filed: 1973-01-16
Abstract: 1450771 Apparatus for moving filter press plates ENGLISH CLAYS LOVERING POCHIN & CO Ltd 16 Jan 1974 [16 Jan 1973] 2329/73 Heading B1D The plates of a filter press are moved towards or away from each other by engaging the lug 5 on piston rod 3 and lug 20 on cylinder 2 with the appropriate plates or extensions thereof and retracting or extending the piston rod 3 e.g. by compressed air. In Fig. 1 the device 1 is provided with wheels 10, 11 which in use are supported on a wire extending along the filter press so that the device 1 can be manually swung towards or away from the plates and manually moved along the press. Rod 6 prevents rotation of lug 5 relatively to cylinder 2. In Fig. 6 (not shown) the plate moving device is pivotally suspended from a trolley running on rails above the plates. The plates and frames (if used) of the filter press may be suspended from rail(s) above or adjacent the plates.
Patent GB-396058-A (GB)
Title: Process for eliminating arsenic and antimony from iron ores and manganese ores
IPC: C22B1/02
Filed: 1932-01-26
Abstract: Arsenic and antimony are eliminated from iron and manganese ores by heating the ore to a temperature above 500 DEG  C. and then bringing it into contact with a mixture of carbon dioxide and a reducing gas, the amount of reducing gas being insufficient to reduce the ore to metal or to form metallic carbides at the temperature used.  The temperature is preferably kept below the sintering temperature of the ore, usually about 1000 DEG  C.  The reducing gas may be carbon monoxide or the carbon monoxide may be replaced wholly or partly by other reducing gases such as hydrogen, hydrocarbons, waste gases from furnaces, blast furnace gas, coking oven gas, waste gases from lime kilns, &c.  The content of carbon dioxide in the mixture is preferably increased gradually as the reaction proceeds and may reach 100 per cent towards the end of the process.
Patent GB-661757-A (GB)
Title: A machine for testing mattresses, spring seats, cushions or the like
IPC: G01M99/00
Filed: 1949-01-28
Abstract: 661,757. Testing mattresses, &c. NEWBORN, J. T., and VI-SPRING PRODUCTS, Ltd. Jan. 26, 1950. [Jan. 28, 1949] No. 2431/49. Class 52 (iv). A machine for testing mattresses 6, spring seats, cushions or the like comprises a frame 1 having a platform 5, which may be transparent, for supporting the mattress and means for raising and lowering in a regular or irregular manner an elongated weight 10 off and on to the mattress. A sloping mirror 7 for viewing the underside may be provided. The "foot" and "shoulders" are supported by a cable 11 and by cables 12, 13 respectively, the cable 12 being combined through a lost motion arrangement 80, 82, 84 with the cablel to form a joint cable 22. The cables 11, 12, 13 have counterweights in auxiliary cables 26, 27, 28. Each cable, 13, 22 passes over a guide pulley 32, a jockey pulley 33, and a second jockey pulley 36 and is anchored to the end of a lever 39 pivoted at 40 and oscillated to raise and lower the weight by a gear 45 and a pin-and-slot connection 42, 44. The effective length of each cable is varied by moving the pulley 36 which is carried on a lever 38 oscillated by adjustable pins 60 on a driven gear 62 and pivoted to a block 54 which is adjustable longitudinally. Pulley 33 is carried on a lever 34 pivoted at 70, spring-urged and abutting against an adjustable stop 72. The gears 45 for the cables 13, 22 are driven at different speeds and the levers 34 for the two cables are independently adjustable. A single gear 62 is provided but, as it lies between the levers 38, it has pins 60 on each face, the two sets each engaging one lever 38. A counter for the number of operations may be provided and the support for the mattress may be modified to suit different types of mattress.
Patent GB-1388221-A (GB)
Title: Test kit and process for detecting narcotics and psychotropic substances
IPC: G01N33/15
Filed: 1973-01-17
Abstract: 1388221 Detection of narcotics MERCK PATENT GmbH 17 Jan 1973 [12 Feb 1972] 2450/73 Heading G1B A test kit for the detection of a narcotic or psychotropic substance (hereinafter called a  "drug") comprises a solvent for the drug, an absorbent carrier which contains at least one constituent of a colour reagent for the drug. Examples relate to the detection of hashish, opium, morphine, morphine derivatives, heroin, cocaine, lysergic acid diethylamide, amphetamine, mescalin, barbiturates and alkaloids in general. The solvent may contain further constituents of the colour reagent. The absorbent may be filter paper, or glass fibre paper cut into strips or into squares attached to a carrier. The test kit may contain a series of solvents and of reagent containing test strips as above, one substance to be detected, together with a colour comparison scale for each substance, a spot plate and a spatula.
Patent GB-1000026-A (GB)
Title: An improvement in or relating to heating appliances
Inventor: JENKINSON HORACE ARNOLD
IPC: F28D7/12
Filed: 1963-01-21
Abstract: 1,000,026. Heat exchange elements for heating fluid in bulk. W. G. JENKINSON Ltd. Jan. 6, 1964 [Jan. 21, 1963], No. 2519/63. Heading F4S. A heating appliance includes (as in a typical embodiment, Fig. 1, for use in tanks or vats containing corrosive liquids) an outer length of pipe 10 with an inlet conduit 16 near its upper end which may be connected to a source of heating medium, conveniently steam. An inner pipe length 24, having a double wall to impede heat conduction, may be arranged as shown, being maintained concentric by the radial fins 32. The steam partly condenses in the bottom of pipe 10 and the condensate is forced out through pipe 24. A plurality of angled fins 18 may be provided to assist in setting up connection currents. The appliance may stand on legs 19 or be otherwise supported. When used in a tank or vat containing corrosive material, the surfaces in contact with the corrosive material may be lead coated. When used in a tank or vat containing, e.g., food-stuffs, the outer surface of pipe length 10 may be made of stainless steel or copper.
Patent GB-239477-A (GB)
Title: Improvements in leak-detecting apparatus
IPC: G01M3/28
Filed: 1925-01-28
Abstract: 239,477. Schrader's Son, Inc., A., (Assignees of Spill, C. J.). Sept. 4, 1924, [Convention date]. Leakage, detecting.-An apparatus for detecting leaks in valves, particularly tyre valves, before putting into service comprises a disconnected fluid conduit between the intermediate ends of which the valve is connected while one end is connected to a source of gaseous pressure or suction and the other to means adapted to indicate a flow of fluid in the conduit. The Figure shows the device adapted for testing tyre valves. The foot of the valve is inserted under an interrupted flange H and is pressed against a perforated washer I by a spring M acting through a head J slidably mounted in the standard Y. The head J has a washer K adapted to engage the nipple of the valve and has a passage R connected by a pipe C to the indicating device G. The device G comprises a transparent vessel containing coloured liquid and provided with an internal chamber Q connected to the conduit C and having its open end beneath the surface of the liquid. If the valve under test is leaky and pressure is supplied through the conduit B bubbles will rise through the indicator or if suction is applied the level of liquid will rise in the inner chamber.
Patent GB-640483-A (GB)
Title: Improvements in, or relating to, mechanism for removing and replacing furnace and like covers
IPC: C21D9/70
Filed: 1948-01-29
Abstract: 640,483. Operating soaking pit furnace covers. SUMMERS & SONS, Ltd., J., and JONES, J. F. R. Jan. 29, 1948, No. 2642. [Class 65(i)] A soaking pit cover 14 is suspended from a wheeled carriage 3 by links 12 connected to levers 11 which are fulcrummed about the wheel axles 5, 6 and are connected by means of links 15, a bell crank lever 16, 19, and a link 20 to a main lever 21 fulcrummed at 22 in the carriage, the main lever being coupled by means of a cable 26 to. a motor, whereby it may be swung about its fulcrum to rock the levers 11 upon the axles so as to impart a lifting and lowering movement to the cover. The carriage is mounted on an inclined track 8 provided with stops 10, the arrangement being such that the force required to raise the cover is less than the force required to traverse the carriage.
Patent GB-764257-A (GB)
Title: Improvements in or relating to continuous feed motion picture apparatus
IPC: G03B41/12
Filed: 1955-01-28
Abstract: 764,257. Television. GES. ZUR FORDERUNG DER FORSCHUNG AN DER EIDG. TECHN. HOCHSCHULE. Jan. 28, 1955 [Jan. 28, 1954], No. 2737/55. Class 40 (3). [Also in Group XX] Continuous feed apparatus comprises two optical compensation systems each comprising a lens reciprocated along a line parallel to the direction of film movement and coupled by a lever to a claw for feeding the film so as to maintain successive film frames conjugate with a fixed area of a reference plane. In the television film scanning apparatus shown a raster on a cathode-ray tube 2 is imaged on the film 1 by half objectives 3, 4 and the transmitted light is concentrated on a photo-cathode 8 by a condenser 7. A shaft 6 carries cams 3b, 4b which rock levers 3a, 4a about a pivot 9 to reciprocate the lenses. Lever systems 10, 11 are coupled to the lenses and actuate feed claws which operate alternately to produce continuous film movement. The claws may be spring loaded so as to trail over the film perforations on the return stroke or may be separately actuated into and out of engagement with the perforations. A shutter disc or cylinder having apertures indicated at 5 obscures the light path through each lens during its return stroke. Since the return is quicker than the forward stroke both lenses may be effective for a short period. The shutter apertures are shaped to provide a uniform total light transmission. Separate photo cathodes may be associated with each lens and a change-over from one to the other, equivalent to the operation of the shutter, effected electronically.
Patent GB-1385303-A (GB)
Title: Method for inhibiting the development of off-flavours in legume  seeds
IPC: A23L11/00
Filed: 1973-01-19
Abstract: 1385303 Debittering soya beans SWIFT & CO 19 Jan 1973 [24 Jan 1972] 2906/73 Heading A2Q The development of off-flavours in legume seeds, eg soya beans, is inhibited whilst maintaining the water-soluble protein content at 45 NSI or more, by exposing whole, full-fat seeds, eg soya beans, is inhibited whilst mainnot been vacuum treated, to saturated superheated steam at a temperature above 212‹F but not above 279‹F and superatmospheric pressure for 10 seconds to 4 minutes until the lipoxidase enzyme activity is reduced below 100 units. The seeds may be heated in an autoclave with agitation and promptly cooled after treatment. The process may be continuous.
Patent GB-470087-A (GB)
Title: Improvements in or relating to tractors for agricultural implements
IPC: A01B61/00
Filed: 1936-02-05
Abstract: A tractor having a power-operated unit for lifting and controlling an agricultural implement attached to it is provided with means for putting that unit out of effective operation when the pull on the implement becomes excessive.  The particular arrangement of tractor, agricultural implement, and control apparatus described is the same as that described in Specification 470,069.  Excessive movement of the rod 25, Fig. 1 of Specification 470,069, due to excessive draught on the implement 4 will be communicated to the valve 14 and will move it right back until the ports 23 are uncovered and allow the oil to escape from the ram cylinder and put the fluid-pressure power device out of action.  The tractor will then be relieved of the weight of the implement.  The safety valve 32 may be opened by an excess of movement of the rod 27.  An electric, mechanically-operated, or other power device may be put out of operation by excessive movement of the spring 29 and lever 26. Specification 253,566, [Class 6 (i)], also is referred to.
Patent GB-1248892-A (GB)
Title: Improvements in or relating to ultrasonic welding heads and their manufacture
IPC: B29C65/08
Filed: 1970-01-21
Abstract: 1,248,892. Seaming non-metallic sheet material. SIEMENS A.G. 21 Jan., 1970 [22 Jan., 1969], No. 3032/70. Heading B5K. [Also in Division B3] The working surface 3 of an ultrasonic welding head 1, or the working surface of an insert attached thereto, is coated with a surface layer 12 of a solid electrically non-conducting, abrasion-resistant material, e.g. aluminium oxide or titanium oxide. Preferably, a bonding layer 11, e.g. of nickel aluminide, is first applied by plasma spraying and then the layer 12 is applied thereto by plasma spraying. Optionally, a wear plate 14 is fitted to the foot 13 of the head 1 and is provided with a stub 15 screwed into a tapped hole 16 in the foot 13. The body of the head 1, or the insert attached thereto, may be made of aluminium or an alloy thereof. The head 1 may be used to weld synthetic resin components, e.g. for electrical plug boards, Fig. 1 (not shown), or for welding metal sheets, Fig. 2 (not shown).
Patent GB-123310-A (GB)
Title: Improvements in or relating to Chucks for Machine Tools.
IPC: B23B31/06
Filed: 1919-02-07
Abstract: 123,310. Progressive Machine & Metal Products Co., (Assignees of Kipniss, A., and Neumann, J. (Administrator of Neumann, M. P.)). Dec. 17, 1917, [Convention date]. Sockets. - The body 1 has a shank 2 to fit the spindle of a drilling &c. machine and a diametral slot to receive a slide 4 in the centre of which is a conical bore to receive the drill-shank. The body has a rectangular recess 17 to receive the flattened end of the drill, and is enclosed in a sleeve made in two parts 8, 11 secured together by a screw and constructed so as to provide a groove 6 into which fit lugs 5 on the slide 4. When the drill is in use, the end of the tang bears on the bottom of the recess 17 and prevents excessive friction between the drill-shank and the conical bore. To remove the drill, the sleeve is moved upwards, and with it the slide 4,. against the springs 15, releasing the drill-shank from the bore in the slide.
Patent GB-325671-A (GB)
Title: Improvements in or relating to the distribution of electric current
IPC: H02B1/00
Filed: 1929-01-30
Abstract: 325,671. Sykes & Dyson, Ltd., Sykes, P., and Cooper, W. Jan. 30, 1929. Junction and test boxes. - Comprises a " Dot-work " box for distributing electric current, characterized in that a casing a, Fig. 1, contains two parallel vertical frames d, supporting pairs of transverse rods e, f on which rest carriers g having openings through which insulators h extend, the insulators having shoulders h<1>, Fig. 2, to rest on the carriers and tapered portions h<2> above the shoulders to allow the insulators to be clamped down to the carriers by means of keeper plates i, each insulator supporting above it a contact fitting k and having an axial opening through which a stalk of the contact fitting extends downwardly for connection to a main conductor b<1>, bridging member, or terminal conductor o as the case may be. The outer contact stalks connect to clamps n which receive the conductors b<1> and the stalks of the inner opposing contacts are connected by bridging members. The terminal members o are lengths of copper tubing which extend at their outer ends through an opening a<2> in the side of the box and are flattened and bent to form U- shaped receivers o<1>. Service boxes, which are similar in construction to the net-work box with the exception that one pair of rods is used, are adapted to clamp over the opening a<2> in the sides of the net-work box and connection made to the projecting ends of the terminal members o. When a service box is not connected to the net box, the opening is closed by a domed cover.
Patent GB-937159-A (GB)
Title: Improvements in or relating to photo-reproduction coatings
IPC: G03F7/022
Filed: 1960-01-28
Abstract: Light-sensitive coatings for printing plates (see Group XX) comprise o-quinone diazide compounds, particularly those of the benzene, diphenyl, naphthalene and dinaphthyl series containing one or more o-quinone diazide groupings.  Such compounds may additionally have sulphonic or carboxylic acid groups which have been amidated with primary and secondary aliphatic or aromatic amines or esterified with aliphatic or aromatic hydroxyl compounds.  Examples describe the preparations (a) of benzoquinone-1,2-diazide(2)-sulphanilide-(4) by condensation of benzoxazolone sulphonic acid chloride-(5) with aniline, splitting off the oxazolone ring in boiling aqueous sodium hydroxide, and diazotisation in hydrochloride solution; (b) of naphthoquinone-(1,2)-diazide (2)-sulphanilide-(5) by condensation of aniline with naphthoquinone-1,2-diazide-(2)-sulphonic acid chloride-5; (c) naphthoquinone-1,2-diazide-(2)-carboxylic acid amide from the corresponding acid chloride(3) and aqueous ammonia; and many other such o-quinone diazide compounds.
Patent GB-1476861-A (GB)
Title: Manufacture of upholstered seats backs or like panels of  furniture
IPC: A47C31/02
Filed: 1976-01-21
Abstract: 1476861 Upholstery B NAYLOR 21 Jan 1976 [24 Jan 1975] 3098/75 Heading A4M An upholstered seat, back or like furniture panel comprises a body of hardboard, plywood or plastics or laminations thereof, the body having a perimetral channel or groove 11, padding 5, e.g. of sponge rubber or foam plastics, over-lying one face of the body, and a cover 6 with a hem housing a tie cord 7 which is pulled taut to draw the cover edge into the channel or groove to secure it therein. A further cover for the face opposite the padded face may have its perimeter tucked into the channel or groove 7 to be held in position by the cord 7 or by its own tie cord.