baber/WOPTO huggingface dataset:
Patent GB-933945-A (GB)
Title: Improvements in variable computing apparatus
IPC: G06G3/00
Filed: 1961-02-13
Abstract: 933,945. Indicating-apparatus. BENDIX CORPORATION. Feb. 13, 1961 [Feb. 23, 1960], No. 5315/61. Class 106 (4). [Also in Group XXIV] In an analogue computer employing differential gearing for correcting or modifying an input rotation in accordance with the contour of a cam in order to produce an output rotation of desired characteristics, the differential gear comprises a driving planet carrier 27, a driven bevel gear 29 and a planet bevel gear 31 which is rotated in accordance with the contour of an adjustable helical cam track 93. A pinion 43, attached to the shaft of the planet gear 31, meshes a rack 45 on a rod 47 which is adapted to slide axially in bearings 49, 51 mounted on the carrier 27. The end of the rod 47 carries a pin 57 which engages a slot in a pivoted lever 69 carrying an arm 85 which supports a roller 89, springs 79, 101 and a lever 95 maintaining the roller 87 in engagement with the cam track 93. The planet carrier 27 is moved axially along a fixed shaft 11, in order that the roller 87 may follow the helical cam track 93, by the engagement of a pinion 19, to which the carrier 27 is secured, with screw threads 15 on the shaft 11. An input shaft 23 carries a pinion 21 which meshes the pinion 19. A pinion 35, secured to the driven bevel gear 29, meshes a pinion 37 on an output shaft 39. The helical cam track 93 is supported in a cylindrical housing 5 by means of adjustable mounting screws 125. Specification 774,639 is referred to. Reference has been directed by the Comptroller to Specification 774,639.
Patent GB-575559-A (GB)
Title: Production of trichloroethylene
IPC: C07C17/25
Filed: 1944-03-24
Abstract: Tri-chloroethylene and hydrogen chloride are obtained continuously by fractionally distilling crude symmetrical tetrachloroethane, obtained by the liquid phase reaction of chlorine and acetylene, to yield a low boiling fraction and a high boiling fraction, with isolation of a fraction consisting of substantially pure symmetrical tetrachloroethane, and cracking this substantially pure fraction by pyrolytic decomposition in the presence of a dehydrohalogenation catalyst.  In an example, crude symmetrical tetrachloroethane, obtained by liquid-phase reaction of chlorine and acetylene and containing 5-6 per cent of impurity is fractionally distilled so as to remove a low boiling fraction containing approximately 2.5-3.5 per cent of the crude material, to leave a high boiling residue containing 4.5-5.5 per cent of the crude material and to isolate the main fraction consisting of substantially pure symmetrical tetrachloroethane and this fraction is vaporised and passed over a catalyst consisting of barium chloride on a porous support at 260-270 DEG  C.; the mixture of trichloroethylene and hydrogen chloride formed is cooled to condense a large portion of the trichloroethylene before being passed into water to absorb the hydrogen chloride and to condense the remaining trichloroethylene.  Specification 505,196 is referred to.  The Specification as open to inspection under Sect. 91 includes the use for the pyrolysis of crude tetrachloroethane however obtained.  This subject-matter does not appear in the Specification as accepted.
Patent GB-470921-A (GB)
Title: Improvements in or relating to electrical resistances
IPC: H01C3/20
Filed: 1936-02-24
Abstract: 470,921. Wire resistances. BAIRD TELEVISION, Ltd., and MERDLER, L. R. Feb. 24, 1936, No. 5491. [Class 37] Resistances, particularly for high-frequency currents, comprise a wire wound so that the shortest electrical path consists in a series of half-turns 1, 3, 5, 7, 9 the turns being wound continuously in one direction and each complete turn overlapping and being overlapped by the preceding and succeeding turns respectively, contact being made at the points 2, 4, 6, 8 of overlap. The former on which the wire is wound may be a flat or curved surface and it may comprise wax which is afterwards removed by melting, the overlapping contact points being soldered. The former may be shaped to produce a non-uniform resistor, or the spacing or gauge of the wire may vary for this purpose. A radial contact arm may be provided.
Patent GB-300444-A (GB)
Title: Apparatus for the removal of the narcotic vapours exhaled by patients during narcosis and the like
IPC: A61M16/01
Filed: 1928-02-21
Abstract: 300,444. H�lscher, F. Feb. 21, 1928. Inhalers.-A mask a for administering anaesthetics, wherein the anaesthetic is introduced through a funnel h into porous material in a container g and is drawn into the mask through a valve f and a tube e, is provided with a casing k, mounted above an exhaling valve b and containing adsorbent material such as active carbon or silica gel, to absorb anaesthetic vapours exhaled by the patient. The adsorbent material is preferably carried in a frame t and is removable from the casing as a unit.
Patent GB-888844-A (GB)
Title: Process for obtaining fluorine compounds
IPC: C01B32/942
Filed: 1958-02-20
Abstract: Gaseous fluorine products are recovered from alkaline earth metal fluorides by melting the fluoride in an electric furnace with a carbon-containing material and a silicon-containing material in such proportions that the fluorine is converted, to the extent of at least 95%, into SiF4, with or without CF4, and the alkaline earth metal is converted into a slag containing alkaline earth metal carbide, the melting being effected in the substantial absence of alkali metal compounds and water.  A charge of mineral fluorite, quartzite, and finely divided low ash content petroleum coke, anthracite, carbon black or graphite is melted in arc furnace 1 at 1,450 DEG -1,580 DEG C. and calcium carbide-containing slag is tapped off at 4.  The gases containing Si F4 and, if a deficiency of SiO2 is used, CF4 are passed through cooled outlet 9 to tower 13, where they are sprayed with an aqueous suspension of clay.  Si O2 sludge is separated at 18 and AlF3 is precipitated from the solution in 16 by concentration, or Al2O3 addition. Remaining gases pass through second and third towers 13. In the second tower 13, the gases are sprayed with <PICT:0888844/III/1> <PICT:0888844/III/2> an aqueous sodium carbonate solution, from which SiO2 and NaF are recovered.  In the third tower 13, the gases are washed with a lime suspension, to separate CaF2, which is recycled to the furnace.  The gases are finally treated in baffle separator 36.  When the gases contain CF4, they may be washed with an aqueous suspension of graphite, or charcoal, to precipitate CF. Alternatively, the gases containing SiF4 may be contacted with dry steam to produce HF and activated silica, or may be passed with CH4 through a graphite retort to form SiC crystals and HF.ALSO:<PICT:0888844/IV (b)/1> <PICT:0888844/IV (b)/2> Gaseous fluorine products are recovered from alkaline earth metal fluorides by melting the fluoride in an electric furnace with a carbon-containing material and a silicon-containing material in such proportions that the fluorine is converted, to the extent of at least 95%, into SiF4 and CF4, and the alkaline earth metal is converted to a slag containing alkaline earth metal carbide, the melting being effected in the substantial absence of alkali metal compounds and water.  A charge of mineral fluorite, quartzite, and finely-divided low ash content petroleum coke, anthracite, carbon black, or graphite is melted in arc furnace 1 at 1450 DEG C.-1580 DEG C. and calcium carbide-containing slag is tapped off at 4.  The gases containing SiF4 and CF4, when a deficiency of SiO2 is used, are passed through cooled outlet 9, and three series-connected towers 13 where SiF4 is washed out by an aqueous clay suspension, an aqueous sodium carbonate solution, and an aqueous lime suspension, respectively.  The gases pass finally through baffle separator 36 to remove suspended solid and water.
Patent GB-287549-A (GB)
Title: Improved method of and apparatus for making headers for sectional boilers
Filed: 1928-02-22
Abstract: 287,549. Vereinigte Stahlwerke Akt.- Ges. March 25, 1927, [Convention date]. Steam generators.-Corrugated headers are made directly from commercial tubes of circular cross section. Two pairs of dies may be used in a press the dies b being first advanced to produce the seatings for the tubes and the dies a then effecting the corrugation. In a modification a single pair of compound dies is employed moved first in the direction of the arrows k, Fig. 4, and then in a direction at right angles. In further modifications the dies are closed in a single diagonal movement and one of the dies may ba stationary.
Patent GB-1454072-A (GB)
Title: Plumbing fixture
IPC: G01K13/02
Filed: 1975-02-10
Abstract: 1454072 Valves SYMMONS INDUSTRIES Inc 10 Feb 1975 [14 Feb 1974] 5599/75 Heading F2V A valve member comprising single beat closures 44, 50 and an apertured cylindrical portion 42 selects the relative amounts of cold and hot water from inlet chambers 23, 25 flowing to an outlet 24 by way of a mixing chamber 21 containing a thermometer 106. The valve is actuated by a lever 70 and a screw thread 57 and houses a spool 86 to provide automatic compensation for changes in inlet pressures. The thermometer comprises a bimetallic helix 108 connected to a pointer 114 enclosed by a plastics or glass screen 144 and is sealed in the valve casing by O-rings 116 which may be mounted in a bushing screwed into the casing. An escutcheon 128 surrounds the screen 144 and is located by a cup-shaped member 66 secured by a nut 68 on the valve housing.
Patent GB-1136542-A (GB)
Title: Fluid pressure relief valves
Inventor: HAIRE CHRISTOPHER ADRIAN
IPC: F16K17/08
Filed: 1966-02-09
Abstract: 1,136,542. Valves. L. ADAMS Ltd. 19 Jan., 1967 [9 Feb., 1966], No. 5665/66. Heading F2V. Fluid pressure relief valve in which the valve closure member 3 is in the form of a disc, biased towards its closed position by a spring 5, and having a circular projecting land 4 whose ends are tapered and terminate in a small flat area portion. The portion bears on a diaphragm 6, which extends across a recess 8 in a valve seat 7, is secured along its outermost periphery, and has its innermost periphery freely located within a channel formed between the seat 7 and a member (9, Fig. 2, not shown) constituting the inlet port. As fluid pressure builds up at the inlet side 7, it is transmitted to the recess 8, and thus tends to move the diaphragm, and member 3 engaging it, away from the seat (Fig. 3, not shown), until the pressure differential is sufficient to snap the closure member away from the diaphragm to relieve pressure (Fig. 4, not shown).
Patent GB-657243-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K1/32
Filed: 1949-03-02
Abstract: 657,243. Electric incandescent lamps. PHILIPS ELECTRICAL, Ltd. March 2, 1949, No. 5713. Convention date, March 5, 1948. [Class 39(ii)] In a lamp with a bulb comprised by a portion 7 having a silvered interior surface defined by part of an ellipsoid of revolution, and a portion 8 which comprises part of a sphere and is silvered internally with the exception of an area 9 providing a window through which light from the filment 3 is emitted, the filament is arranged at one focus F1 of the ellipsoidal part and supported by lead-in wires 4 taken through the spherical part. The focus F1 also constitutes the centre of curvature of the spherical part 8. Preferably the lead-in wires enter the bulb at points symmetrically disposed with respect to the window 9. The bulb is exhausted and sealed off at a narrow tube 10 behind the filament and in the optical axis of the ellipsoidal portion.
Patent GB-725836-A (GB)
Title: Improvements in and relating to electric lamp testing apparatus
IPC: H01K3/30
Filed: 1953-03-02
Abstract: 725,836. Proving electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. March 2, 1953 [Feb. 29, 1952], No. 5740/53. Class 39 (2). [Also in Group XXXVI]. Apparatus for testing based electric lamps, more particularly electric incandescent lamps, for circuit continuity comprises means for carrying a lamp to a testing station and supporting it by its base while connecting its contact members in a circuit responsive to interruptions of continuity and subjecting the lamp to vibration while so supported. In the example the testing apparatus is applied to a lamp-finishing machine of the type described in Specification 247,923, [Class 39 (ii)], comprising a series of lamp-holding heads 2 around the peri-. phery of an indexing turret, each head being provided with a pair of jaws 19 and 20 which grip the cap of a lamp, and a cup 8 with an internal bushing 8' to engage the lower part of the bulb 9. The cup 8 is mounted on the upper end of a spindle 10 which is supported within brackets 5, 12 on the turret and urged upwardly by a spring 13, the lowering of the spindle to disengage the cup from the bulb being effected by a stationary cam plate 14 mounted at the testing station to engage a roller 15 extending laterally from the spindle. The cup 8 is lowered from the bulb as the latter approaches the testing-station, at which are mounted a pair of resilient contact fingers 44, 45, positioned to engage the lamp cap contacts when the turret is halted, and agitating means comprising a motor driven vertical shaft 39 carrying a square block 38 on which are secured four flailing-members in the form of spring strips or blades 37 arranged to strike the bulb 9 and subject it to forced vibration. Shorter spring members 43 serve as stiffeners for the blades 37. The motor may run continuously, so that the bulb of every lamp indexed into the station is flailed. The circuit into which the lamp is connected by the contact fingers 44, 45 may consist of a current limiting resistor 51 in series with a battery 50 and the primary winding 52 of a transformer 53 which has its secondary winding connected through an amplifier to a loud speaker 56 or, alternatively, to a solenoid-controlled device for ejecting a defective lamp.
Patent GB-229111-A (GB)
Title: Improvements relating to surface sowing coulters
IPC: A01C7/08
Filed: 1924-03-06
Abstract: 229,111. Storie, W. R. March 6, 1924. Seed distributors.-In machines for sowing seeds in wide rows and near the surface of the soil, in which the coulter carrying and controlling mechanism comprises two superposed frames to which a bracket carrying a disc. cutter is attached, resilient means are provided for connecting together the rear ends of the frames and maintaining the coulter in the soil at a uniform depth. The disc-carrying bracket 3 is adjustably connected to the superposed frames 1, 2. Diverging shoes 5 are secured to the lower frame 1 with the front ends fitting close to the disc cutter 4. Fastened to the shoes is a seed distributor 6 behind which are clod cleaners 7 and adjustable seed coverers 8. At the rear of the frames 1, 2 are bridge pieces 9, 10 through which passes a bolt 11 surrounded by a helical spring 12 between the bridge pieces 9, 10 and a similar spring between the bridge piece 10 and an adjusting-nut 14. The upper frame 2 is subjected to downward pressure by the framework of the machine. The Provisional Specification refers to wheels for controlling the depth.
Patent GB-657101-A (GB)
Title: Improvements in or relating to a rotary seal
IPC: F16J15/34
Filed: 1948-02-26
Abstract: 657,101. Stuffing-box substitutes. CRANE PACKING, Ltd. Feb. 26, .1948, No. 5776. Convention date, March 1, 1945. [Class 122(v)] In a rotary sealing means betweer relatively rotating parts, e.g. a shaft and a shaft housing, the means comprise, ar a x i a 11 y extensible sleeve 24 made of metal or other material capable of withstanding relatively high temperatures and having at least one fold 25; an axially fixed compressible support 29 for one end 26 of the sleeve 24 encircling the shaft, etc.; an axially movable washer 21 adjacent the other end 27 of the sleeve 24 and in sealing contact with the housing etc.; resilient compressible means 30 interposed between the end 27 of the sleeve 24 and the washer 21; means 31 for compressing the support 29 to effect a seal between the sleeve 24 and the support 29, and means 32 for compressing the means 30 to effect a seal between the sleeve 24 and the washer 21. A shell 35 having notches engaging grooves in the washer 21 and a pin 41 and slot 40 driving connection with the band 31, has a shoulder 37 which engages, under the influence of a spring 32 acting on a flange 34, a brass washer 38 between which and the flanged end 27 is a resilient band 39. The band 31 is of metal and has slots 42 which engage pins 43 embedded in the ring 29. The rings 29, 30, 39 may be of synthetic rubber, e.g. " Neoprene " (R.T.M.) which. is normally resilient, but which loses its resiliency at relatively high temperatures. In a modification, the band 29 is replaced by a resilient envelope enclosing the cylindrical end 26 of the sleeve 24.
Patent GB-804923-A (GB)
Title: Improvements in or relating to ready-to-eat food products
IPC: A23L1/164
Filed: 1956-02-24
Abstract: In making ready-to-eat cereal flakes, cooked and dried pliable particles of rice or maize moving in a continuous stream are spray-coated with warm water, then promptly mixed and uniformly coated with uncooked high-protein-content flour containing more than 50 per cent. by weight of wheat gluten and rolled into flakes, which are baked, e.g. for 15 to 30 seconds in an oven at 390 to 450 DEG F. to puff the flakes slightly and give them a light-golden colour, and are then finally cooled, e.g., after having been sprayed with a vitamin solution.  The flour may comprise form 15 to 30 and the rice or maize from 85 to 70 per cent. by weight, of the flakes.  The cooked and dried rice or maize particles may contain 20 per cent. by weight of water and may be flavoured with salt, malt extract, syrup or sugar.  The amount of water added to them during spray-coating may be between 8 and 14 per cent. of the total weight of solid matter in them. Before the flakes are baked, they may be dried until they contain between 10 and 15 per cent. of water.  The particles of rice are, preferably, whole grains: the particles of maize may be relatively large grits.  The total protein-content of the flour may be between 60 and 80 per cent.  A suitable flour contains the following substances in parts by weight: wheat gluten 1000, wheat-germ meal 180, dried skim milk 125, dried, debittered brewer's yeast 31.ALSO:In making ready-to-eat cereal flakes, cooked and dried pliable particles of rice or maize moving in a continuous stream are spray-coated with warm water, then promptly mixed and uniformly coated with uncooked high-protein-content flour containing more than 50 per cent by weight of wheat gluten and rolled into flakes which are baked, e.g. for 15 to 30 seconds, in an oven at 390 DEG  to 450 DEG F. to puff the flakes slightly and give them a light-golden colour, and are then finally cooled, e.g., after having been sprayed with a vitamin solution.  The flour may comprise from 15 to 30 and the rice or maize from 85 to 70 per cent, by weight, of the flakes. The cooked and dried rice or maize particles may contain 20 per cent of water and may be flavoured with salt, malt extract, syrup or sugar.  The amount of water added to them during spray-coating may be between 8 and 14 per cent of the total weight of solid matter in them.  Before the flakes are baked, they may be dried until they contain between 10 and 15 per cent of water.  The particles of rice are, preferably, whole grains; the particles of maize may be relatively large grits.  The total protein-content of the flour may be between 60 and 80 per cent.  A suitable flour contains the following substances in parts by weight: wheat gluten 1000, wheat-germ meal 180, dried skim milk 125, dried, debittered brewers' yeast 31.
Patent GB-251923-A (GB)
Title: An improved turntable for portable railways
IPC: B61J1/02
Filed: 1925-10-13
Abstract: 251,923. Mõder, O. Oct. 13, 1925. Turntables for portable railways comprise a stationary base 1 carrying a rotary platform 5 provided with a hinged ramp 6 having guide strips for the vehicle wheels. The base 1 has rollers 2 and may have a second platform 4. The ramp 6 has rails 40, 41, Fig. 1, which are either duplicated or adjustable for change of gauge. In a modification, Fig. 6, the rails 42 are pressed from the ramp. The converging tracks are secured in a manner different from that described in Specification 247,877.
Patent GB-384490-A (GB)
Title: Improvements in or relating to devices for controlling slidable windows
IPC: E05F11/00
Filed: 1932-02-26
Abstract: 384,490. Sliding-window fastenings and holders. BURROWS, C. H., 13, Brownhill Road, Blackburn. Feb. 26, 1932, No. 5833. [Class 44.] A device for securing sliding sashes in closed or partly open position comprises a perforated plate 7 secured to one sash and co-operating with a bolt 1 carried by the other sash. A strip of metal 4 provided with holes for securing screws, is bent as shown to provide oppositely disposed limbs having apertures in which the bolt is guided. A leaf spring 3 riveted to the strip bears against a screwed adjustable and detachable collar 5 on the bolt to shoot the bolt. One guide aperture has a slot extension to allow passage of a pin 6 on the bolt, which can be held in retracted or shot position by rotating the bolt to move pin 6 out of register with the slot. The bolt is operated by a knurled head 2.
Patent GB-113191-A (GB)
Title: Improvements in and relating to Bi-focal Optical Lenses.
Inventor: REINER JOHN BATIST
IPC: G02C7/06
Filed: 1917-04-26
Abstract: 113,191. Reiner, J. B. April 26, 1917. Spectacle lenses.-Bifocal lenses of bi-prism type comprise two lens elements a, and b of equal power, and a lens segment d is mounted on or attached to one of the elements a, b with its optical centre coinciding, or approximately so, with the element optical centre. The dividing line c between the prism surfaces of elements a, b may be straight, and these surfaces may be plane or curved surfaces of equal radius.
Patent GB-555685-A (GB)
Title: Improvements in drying apparatus
IPC: F26B11/04
Filed: 1942-05-02
Abstract: 555,685. Roasting beans &c. SPOONER, W. W. May 2, 1942, No. 5934. [Class 58] [Also in Group XIII] Heating fluid is directed through nozzles 5 on to the outer surface of a rotary drum 1 containing the material to be roasted. The nozzles project from a chamber 6 partly surrounding the drum, and a fan 8 draws air from the space between the chamber and the drum and forces it over a heater 9 and through the nozzles. Part of the hot air may be led into the drum through a pipe 11 under the control of a valve 12.
Patent GB-1351543-A (GB)
Title: Magnetic storage medium
IPC: G11B5/702
Filed: 1972-02-09
Abstract: 1351543 Magnetic polymer compositions AGFA-GEVAERT AG 9 Feb 1972 [9 Feb 1971] 5966/72 Heading C3P [Also in Division B2] A magnetic storagemedium having a magnetizable layer containing magnetizable particles and binder applied to a support is characterized in that the binder consists of a combination of at least one polyester and/or polyether urethane which is free from hydroxyl and isocyanate groups and at least one hydroxyl-containing copolymer of vinyl formal and vinyl acetate. In an example γ-Fe 2 O 3  and carbon black are mixed with a copolymer of vinyl formal and vinyl acetate, and an elastomeric methane obtained by reacting a polyester of adipic acid and butane diol with 4 :41-diisocyanatodiphenylmethane, and a dispersing agent of phosphoric esters, 1:2,- dichlorethane and methyl ethyl ketone. The dope so obtained is applied to a polyethylene terephthalate support and exposed to a magnetic field before drying.