baber/WOPTO huggingface dataset:
Patent GB-234845-A (GB)
Title: Process for removing nicotine from tobacco
IPC: A24B15/24
Filed: 1925-05-29
Abstract: 234,845. Schloesing, T. May 30, 1924, [Convention date]. Tobacco. - For removing nicotine. tobacco is subjected at about 1000 C. to the action of a current of a mixture of steam and gaseous ammonia, there being an appreciable substantially constant ammoniacal pressure which may be maintained by the introduction into the apparatus of further gas. After passing over tobacco in a vessel R, the mixture containing nicotine and some aromatic constituents of the tobacco is condensed in a chamber D and then passes to a container A where it is treated with a nicotine solvent such as kerosene. This solvent passes to a container B where it is freed from its nicotine by an acid, such as sulphuric acid: the nicotine-free mixture, on the other hand, passes to a vaporizing chamber C and then again to the vessel R.
Patent GB-716294-A (GB)
Title: A filing container for microscope slides
Inventor: WEISKOPF EDWIN CARL
IPC: A47B63/02
Filed: 1952-06-06
Abstract: 716,294. Filing paper and like sheets. TECHNICON INTERNATIONAL, Ltd. June 6, 1952, No. 14365/52. Class 146(1) [Also in Group XVII] Microscope slides are positioned in a drawer by means of a coil spring, the slides being inserted between the convolutions of the spring or being held by the spring as a stack against an end of the drawer. The spring 16 may have plates 22 attached to its ends by wires 25 and the slides may be held between a plate 22 and the drawer end 18. The drawer is only slightly wider than the diameter of the spring. U.S.A. Specification 2,559,203 is referred to.
Patent GB-891393-A (GB)
Title: Improvements in or relating to micrometer gauges
IPC: G01B3/20
Filed: 1958-05-06
Abstract: 891,393. Sliding-calliper gauges; verniers; indicating-apparatus. JAGER, E. May 6, 1958 [May 6, 1957], No. 14438/58. Classes 106 (2) and 106 (4). [Also in Group XX] A sliding-jaw calliper gauge is formed from a " fixed " part a and a relatively movable slide c. The part c is formed along its whole length with openings d, d<SP>1</SP> tapering from bottom to top as shown and four rectangular openings K 1 -K 4 . A zig-zag line h carrying the numerals 0-9 twice over is also marked on the slide c. The fixed part a has black rectangular markings m thereon, each formed with small recesses i. The two rows of markings or " bars " m are staggered, the bars being 2 mm. in width and corresponding edges being spaced apart by 4 mm. The openings d, d<SP>1</SP> are 2 mm. wide at their centre points and corresponding edges are spaced by 3.9 mm. Thus for any setting of the jaws b, b<SP>1</SP>, small white acute-angled triangles similar to those shown at l, l<SP>1</SP> will be formed, by the intersection of the bars m and the inclined edges of the openings d or d<SP>1</SP>, in two or three consecutive openings, the other openings showing larger areas of black and white. The whole number of millimetres is indicated by a figure appearing under one of the openings K 1 -K 4  and tenths of a millimetre by the position of the particular openings d or d<SP>1</SP> which contain the triangles in relation to the scale h. Hundredths of a millimetre are indicated by the pattern formed by an imaginary line joining the apices of the triangles. The openings in the sliding member may be of other shapes, e.g. rhombuses or ellipses, and the relatively sliding members may be in the form of hollow cylinders of transparent material provided with an interior lamp. The device can be used to indicate the thermal expansion of a metal rod for use in temperature measurement.
Patent GB-1375652-A (GB)
IPC: C09B3/42
Filed: 1972-03-28
Abstract: 1375652 Preparation of pyranthrones BADISCHE ANILIN- & SODA-FABKIK AG 28 March 1972 [29 March 1971 (2)] 14438/72 Addition to 1318768 Heading C4P  Pyranthrones are prepared by heating a 2,2<SP>1</SP> - 1,1<SP>1</SP> - dianthraquinonyl at 90-210‹ C. in a polar organic solvent which may contain up to 20% by weight of water on the amount of solvent in presence of 0À1 to 3À0 moles per mole of the dianthraquinonyl of an alkali metal formate, alkali metal salt of a C 3 -C 20  aliphatic carboxylic acid, a cycloaliphatic, aromatic or heterocyclic carboxylic acid, an alkali metal salt of carbonic acid, a tertiary alkali metal phosphate, an alkali metal hydroxide or a primary, secondary or tetiary cycloaliphatic amine or mixtures thereof. The solvents include ethylene glycol, diethylene glycol, dipropylene glycol, N-dimethyl-formamide, N,N- dimethylacetamide, N, N-diethylacetamide, N- methyl - pyrrolidone, dimethylsulphoxides or mixtures thereof.
Patent GB-711057-A (GB)
Title: Auxiliary energising circuit for vehicle signal lamps
IPC: B60Q11/00
Filed: 1951-06-19
Abstract: 711,057. Road - traffic signals on vehicles. HOLLINS, J. R. June 19, 1951, No. 14518/51. Class 118 (2). An arrangement for utilising vehicle rear or stop lights to give a flashing signal to indicate that the vehicle is stopped for repairs in which a normally series-connected pilot lamp is also used as a tell-tale for the flashing signal comprises an auxiliary circuit which when brought into operation effectively connects the pilot and signal lamps in shunt relationship. A battery 10 feeds a vehicle ignition system and petrol gauge via an ignition switch 40 and a stop lamp 30 via brake-operated switch 20. A high resistance pilot lamp 50 is connected from the ignition switch 40 to the stop lamp 30 such that when the switch 40 is closed sufficient current flows through lamps 50 and 30 in series to light the former but not the latter. Operation of the brake pedal short-circuits the pilot lamp 50 and lights the stop lamp 30. An auxiliary circuit comprising a manually operable switch 60 and flasher 70 is connected from the battery 10 to the junction between lamps 50 and 30. When switch 60 is closed current is fed via the flasher 70 to lamps 30 and 50 in parallel, the circuit of lamp 50 being completed by the petrol gauge circuit, and hence the two lamps flash in unison.
Patent GB-219950-A (GB)
Title: Improvements relating to jib crane excavators
IPC: E02F3/50
Filed: 1924-06-16
Abstract: 219,950. King, S., and Lamerton R. H. C. July 31, 1923, [Convention date] Scraping-apparatus.-Jib crane excavators of the type wherein the bucket ladder is movably mounted at one end on the jib and supported at a point between its ends so that its angle with the jib may be varied, have a ram secured tc the jib, the movable part of the ram being attached to the end of the bucket ladder. As applied' to a steam crane 11. 12 is a swan-neck jib. and 13 are stays pivoted to the excavator ladder or runway 14 comprising side channels ir which run the wheels 15 of the carriage 16 tc which the bucket 18 is pivoted at 17. The bucket 18 has teeth 19 and pulleys 20 over which pass the pulling ropes 21 secured to eye-bolts 22 and passing over a pulley 31 to the winding drum. The ladder 14 has an extension 23 and is pivoted to the, crosshead 25 of a ram 26, provided with valves 27, 28 controlled by a chain and wheels 30 moved by the operator. A chain 35 controls the valves by means of stops 36 thereon engaging an arm 37 on the crosshead 25. A trigger 32 engages the front axle 33 of the carriage 16 when the bucket is in the raised position and is released by means of a rope 34. In operation, the ram 26 forces the teeth 19 into the material and the bucket is lifted by rope 21 to the dotted position shown in Fig. 2 where it is held by the trigger 32 and swung into emptying position by rope 21. The ram and trigger are then released and the carriage 16 descends the ladder to the part 23 ready for the next cut.
Patent GB-560244-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J7/44
Filed: 1942-10-16
Abstract: 560,244. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 16, 1942, Nos. 14531 and 14532. Convention date, Oct. 18, 1941. [Class 39 (i)] [Also in Group XXXVI] An electric discharge lamp comprises a vitreous tubular envelope 10, Fig. 1, bent into a circular, oval, polygonal or other substantially closed figure with its ends 11 adjacent and directed toward one another, oppositely directed cathode mounts 12 sealed into the opposed ends and forming the end walls of the envelope and a common base 20 for the ends provided with contact terminals 21 for the leads from both cathodes. In one form the cap is in two solid halves 25, 26, Fig. 3, with recessed portions 13 for the ends of the lamp to be cemented in, and passages for the current leads 14, 21. A bolt 27 holds the two halves together. In another form the cap is in two hollow halves 25a, 26a, Fig. 5, bolted together so as to overlap the ends 11 of the lamp, and to accommodate ends of varying separation. In another form, a block 25b, Fig. 8, co-operates with a hollow metal cover 26b adjustably bolted to it by bolts 38 entering slotted holes 44. The ends of the cap are conical so as to accommodate tube ends of differing inclination. The cap has room for a discharge-operated thermal switch 35 and noise-suppressing condenser 36, connection being made to an insulated terminal disc 40. An insulating lining 39 surrounds and protects these circuit elements. The contact terminals 21 extend in all cases in a direction perpendicular to the plane of the lamp. A luminescent coating 17 is provided, and the filling is rare gas and mercury vapour. Specification 558,205, [Group XXXVII], is referred to.
Patent GB-407563-A (GB)
Title: Improvements in or relating to advertising and like signs
IPC: G09F15/02
Filed: 1933-05-20
Abstract: 407,563. Posters. MARKS, H. W., Handforth House, Handforth, Cheshire. May 20, 1933, No. 14618. [Class 3 (ii).] Translucent posters or the like comprising cut-out pieces of paper or the like secured by adhesive to a cloth, paper or like backing are made by laying the backing on a bench or table having a covering of oil cloth, glass, enamelled sheet or other non-absorbent material, applying a slow-drying adhesive to the upper surface of the backing, and then laying the cut-out parts of the poster on the backing and working them into position until the stretch caused by absorption of the adhesive is smoothed out. Absorbent sheets of paper are then rubbed or rolled over the poster to remove surplus adhesive.
Patent GB-528886-A (GB)
Title: Improvements in or relating to warp knitting machines
IPC: D04B27/26
Filed: 1939-05-16
Abstract: 528,886. Knitting-machines. F.N.F., Ltd., and MORRISON, J. L. M. May 16, 1939, No. 14626. [Class 74 (ii)] The guide bars of a warp knitting-machine are traversed in one direction by a cam and in the other direction by a stiff resilient device arranged so that the force applied to the guide bar undergoes small changes in comparison with the changes in movement of the guide bar itself. The bars are attached by flexible metal strips 11 to lever parts 8, 9 pivoted at 10. A member 5 also pivoted at 10 extends between the parts 8, 9 and is connected thereto by pins 13, 30. The lower end of the member 5 is formed at one side with a recess 15 in which a spring-pressed V-shaped projection 16 bears. The spring 18 can be adjusted in tension by screwing in a cap 26. A bolt 31 is screwed up to bear against an abutment 32 when it is desired to relieve the guide-bar of the spring pressure. By the choice of a suitable design of the parts it is possible to arrange that, although the stress of the spring 18 changes appreciably in different positions, the turning moment and therefore the stress on the guide bar remains nearly uniform.
Patent GB-825064-A (GB)
Title: Improvements in or relating to rocket-type line-throwing apparatus
Inventor: WHEELWRIGHT EDWARD HANLEY
IPC: F42B12/68
Filed: 1956-05-10
Abstract: 825,064. Line-throwing apparatus. WAECO Ltd. May 3, 1957 [May 10, 1956], No. 14628/56. Class 77 A rocket - type, line-throwing apparatus comprises a casing divided by a wall 16, Fig. 1, into a compartment 18 mounting a rocket launching tube 19 and a compartment 17 housing a line 45. The casing rear wall 13 has cap covered apertures through which access is had to an igniter holder 24 and the securable end 45a of the line. The rocket 37 has a harness 44 by which it is secured to the line through a yoke 47 and an asbestos covered steel trace 48. The bayonet type fitting tubular igniter 28, Fig. 6, has a plate 32 adapted for vertical movement to release a firing pin 30a, such movement being effected through the interengagement of a trigger mechanism 34, Fig. 1, and a slot 32b in the plate. The trigger mechanism has rod portions 34a, 34b, the former slidable within part 21a of the casing handle 21 whilst part of the latter is slidably engaged within handle part 21b. A safety pin 35, Figs. 1, 3, and a sight tube 22 are provided. The lid 14 stores a supply of igniters 28. In use, the line leaving the container 17 fractures a frangible covering 49.
Patent GB-569675-A (GB)
Title: Hand tools for trimming edges of metal and like sheets
IPC: B23D71/00
Filed: 1943-09-07
Abstract: 569,675. Files. ROADHOUSE, A. E. Sept. 7, 1943, No. 14680. [Class 61 (ii)] A device for removing burr from the edges of metal &c. sheets or chamfering the same comprises a metal member 1 with one or more open-ended grooves 2, 3 provided on one or both opposite faces with file teeth ; the grooves are preferably V-shaped of an angle not more than 90 degrees.
Patent GB-201688-A (GB)
Title: Improved means for providing and regulating tension upon cloth in weft pile cutting machines
IPC: D06C13/08
Filed: 1922-05-25
Abstract: 201,688. Roger, A. May 25, 1922. Pile, cutting.-For tensioning the cloth in weft-pile cutting-machines a continuous double-looped flexible member e passes round a pulley on the shaft of the cloth drag-roller i so that slackness of cloth on the dragroller slackens the chain i and shifts the belt of two driving cone-pulleys to re-establish normal tension. Figs. 3 and 2 are side elevations of the left and right of the machine, Figs. 4 and 6 are plan views corresponding to these, and Fig. 1 is a part section showing the control connections. A frame b pivoted on the main frame a at b<1> and checked by a spring c carries mechanism comprising rollers g, h, i over which the cloth e passes, and a looped chain l passing over gear wheels k, k<1>, k<1> being keyed to the shaft of a cone pulley i<1>. The chain loops pass round wheels m, o mounted in levers n and p respectively. A cross belt s connects the driving cone pulleys i<1> and t, Figs. 4 and 6. A friction wheel x when tilted into contact with a driven wheel y by rocking the frame b keeps the machine running, but other driving devices without the movable frame may be used. The belt s is engaged by a fork 1 connected to a transversely slidable part 3 which in turn is moved by a flexible cord 6 connected to the lever n. In operation if the cloth slackens the loop of chain round wheel m falls, the lever n falls, pulling with it the cord 6 which moves the belt fork to shift the belt along the cone pulleys thus altering the speed of the roller i to take up the slack. If the cloth becomes tight the reverse action takes place. The lever n may be dispensed with, and the cord 6 fixed direct to the wheel m. The wheels m, o may be varied in weight. An ordinary brush roller w is also used. The cloth e may fall on to a scray formed of several boards 7 whose ends are alternately raised and lowered by eccentrics by being pivoted near their opposite ends, so that the cloth is moved along by a kind of shaking motion. The looped chain and cone devices are also described as applied to a machine where the travelling cloth is inclined considerably to the horizontal so that the operative can deal with cloths of considerable width by standing to the left or at the end of the machine.
Patent GB-578472-A (GB)
Title: Improvements in or relating to aircraft airscrews
IPC: B27M3/10
Filed: 1938-05-17
Abstract: 578,472. Screw propellers. KING, E. P., and.DE HAVILLAND AIRCRAFT CO., Ltd. May 17, 1938, No. 14743. [Class 114] Laminated blades for screw propellers have in each lamination 10 a number of cross-slots 11, 12 at the root portions, which may also have additional laminµ 13 thereat.
Patent GB-1102574-A (GB)
Title: Improvements in hollow electrical conductor members
Inventor: HEARD JEFFERY GERALD
IPC: H02K3/22
Filed: 1964-04-09
Abstract: 1,102,574. Junction pieces. ENGLISH ELECTRIC CO. Ltd. 6 April, 1965 [9 April, 1964], No. 14743/64. Heading F2G. [Also in Divisions B3, H1 and H2] A copper body 15 is cast around one or more tubes 10-12 of cupro-nickel, to form a hollow connector for the electrical interconnection of parts of the winding of a hollow conductor such as that of the rotor of a turbo alternator. Cooling gas or liquid flows through the connector, conductors and a cooling circuit in use. Tubes may be bent to shape and brazed or welded together. Then, after casting, outer surfaces are machined. Lugs 17, 19 and a screwthread 16 are formed at the ends of limbs for making electrical and fluid connection. Various forms of branching and offset tubular passages are described, as well as separate passages, Figs. 7, 8 (not shown) and a single passage, Figs. 9, 10 (not shown).
Patent GB-494033-A (GB)
Title: Improvements in milling and softening fabrics and fibrous materials
IPC: D06C17/02
Filed: 1937-05-28
Abstract: 494,033. Finishing fabrics. KING, A. T., and SPEAKMAN, J. B. May 28, 1937, No. 14787. [Class 42 (i)] Fabrics in open width are softened, fulled, &c. between travelling bands a, 6, fitted with projections a<1>, b<1> which cause the fabric to be extended and compressed in quick succession at a large number of points. The bands may be vibrated transversely.
Patent GB-416838-A (GB)
Title: Improvements in and relating to turbine shaft packings
IPC: F16J15/44
Filed: 1934-05-16
Abstract: 416,838. Turbines; stuffing-box substitutes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 16, 1934, No. 14802. Convention date, May 16, 1933. [Classes 110 (iii) and 122 (v).] In turbines in which the rotors b are formed integrally with the shaft a, rings c, which prevent direct heat transmission from the diaphragm packing to the shaft, are initially of V-section and are flattened into recesses e in the rotors. The rings may be in two or more segments. The shaft may be recessed below the rings and thrust surfaces f may be provided for the rings.
Patent GB-1058167-A (GB)
Title: Method of and apparatus for monitoring for flowing stream content
Inventor: LIEBERMAN SEYMOUR
IPC: G01N1/00
Filed: 1964-04-09
Abstract: 1,058,167. Detecting substances in fluid streams. PACKARD INSTRUMENT CO. Inc. April 9, 1964 No. 14813/64. Heading B1X. In detecting suspended or dissolved foreign material in a fluid stream, part of the stream is deposited on a conveyer 23, which passes into chamber 28, where the fluid is evaporated, then into chamber 38 where the remaining material on the conveyer is volatilised, a pickup gas passing through chamber 38 carrying the material to a detector 45. Conveyer 23 (Figs. 4 - 6, not shown) may be a metal, asbestos or glass fibre strip or tape wound from reel 24 to reel 25. Chambers 28, 38 are electrically heated and thermostatically controlled. Chamber 28 is fed with dry air or gas to remove the evaporated fluid, or may be evacuated. The fluid may be the eluent from a liquid chromatographic column 10 or may be an aliquot portion of a continuous fluid stream in an industrial process (Fig. 3, not shown). The output of detector 45 is fed to a recorder 50 and controls a manifold valve 16 so that when material is detected in the fluid, the fluid which normally flows to waste 18 is diverted into receptacle 14 for subsequent analysis. In Fig. 7 (not shown) the conveyer is heated by induction, and a katharometer having elements in the pick-up gas inlet and outlet is used to detect material. Alternatively the detector may be a gas density balance, an argon ionisation detector or a hydrogen flame detector, the pickup gas being argon or hydrogen in the latter cases. Reference has been directed by the Comptroller to Specification 998,107.
Patent GB-514913-A (GB)
Title: Improvements in or relating to the exhaust pipes of internal combustion engines
IPC: F01N3/06
Filed: 1938-05-18
Abstract: 514,913. Exhaust systems. BRONZAVIA SOC. ANON. May 18, 1938, No. 14880. Convention date, May 24, 1937. Addition to 471,776. [Class 7 (ii)] [Also in Groups XXI and XXXIII] The flat sheets in which the exhaust is discharged transversely to the slip stream, as described in the parent Specification, are formed by discharging the gas through a double row of holes 4 formed in the sides of a flattened pipe 2. The pipe is preferably formed of two sheetmetal pressings connected by flanges 6 ; it tapers in crosssection and has a tapering bulge 3 and cooling expansion 5 ; the pipes may be separate from the cylinder exhaust pipes and be connected thereto by spring clips. They may extend along the fairing of an aircraft which preferably has grooves in which they are accommodated so that the streamliaing is not affected. A controlled supply of air passing along the grooves may be used for heating the carburetter or for other purposes. The holes 4 may be arranged on either or both sides of the pipes.
Patent GB-1341609-A (GB)
Title: Process for the treatment of alumina-containing ores
IPC: C01F7/0613
Filed: 1971-05-14
Abstract: 1341609 Wet grinding of alumina-containing ores TATABANYAI SZENBANYAK 14 May 1971 [20 May 1970] 14901/71 Heading C1A As-mined or coarsely crushed alumina-containing ore (e.g. bauxite) is treated, prior to alkaline extraction of the alumina, with an aqueous alkaline leaching liquor for up to 12 hours (e.g. 0À5 to 2À5 hours) to soften and loosen its mineral structure and is then, with additional leaching liquor if necessary, reduced to a slurry of particle size 2 mm. or less, preferably using a grinding-conveyer pump. The leaching liquor is preferably at 50 to 90 C. and the ore may be crushed to a particle size of 20 to 30 mm. before the grinding step.
Patent GB-853069-A (GB)
Title: Improvements in and relating to memory devices
IPC: G11C17/00
Filed: 1958-05-09
Abstract: 853,069. Spark gaps. NAZARE, E. H. May 9, 1958 [May 9, 1957; June 8, 1957 ; June 29, 1957 ; May 2, 1958], No. 15014/58. Class 39(1). [Also in Group XIX] An electric permanent memory device, e.g. for an electronic calculating machine, comprises a coordinate array of sparkgaps. As shown the spark-gaps are formed at the intersections of parallel conductors 12 and 15 supported by insulating plates 11 and 16 respectively. At each gap, the spark is localised by an aperture in a grid 13. Information is recorded by applying sufficiently high voltages to the appropriate conductors to cause a dielectric sheet 14 to be punctured by the resulting sparks. Reading is effected by lower voltage impulses which produce a spark only at a gap at which the dielectric has been previously punctured. As illustrated in Fig. 6, parallel co-ordinate arrays may be combined in a three-dimensional block. In another embodiment, Figs. 7-11 (not shown), one set of conductors are embedded in a dielectric which is folded concertina-wise; the intersecting conductors being provided in plates which are inserted between the folds. In a further embodiment, Figs. 1-4 (not shown), the spark gaps are formed by separate point electrodes which are electrically connected in rows and columns. At each position, a central fixed electrode co-acts with two opposite movable electrodes to form a pair of spark gaps. The latter electrodes may be adjusted to permit or prevent the passage of a spark, thus providing a record of the required information. Alternatively, a dielectric may be placed in the spark gaps and selectively punctured as in the other embodiments. Instead of puncturing a dielectric, ozonisation of the air in the gaps between electrodes after spark discharges have been established may be used for storage, such conditions providing conducting paths for subsequent read-out pulses. The record can be erased by simply expelling the ozonised air.