baber/WOPTO huggingface dataset:
Patent GB-1326996-A (GB)
Title: Process for removing copper from molybdenum
IPC: C22B3/30
Filed: 1971-04-19
Abstract: 1326996 Process for removing copper from molybdenum GTE SYLVANIA Inc 19 April 1971 [27 March 1970] 25102/71 Heading C1A Copper is removed from molybdenum by contacting an aqueous solution containing copper and molybdenum and having a pH above 5À7 with an organic phase comprising a water-insoluble liquid hydrocarbon and an α- hydroxy oxime, separating the resultant molybdenum-rich aqueous phase and copper-laden organic phase and recovering the molybdenum from the aqueous phase. Preferably the pH of the aqueous solution is from 6À9 to 9À6 and the organic phase contains from 5 to 20 % by weight α-hydroxy oxime. In general, the α-hydroxy oximes have the formula where R, R<SP>1</SP> and R<SP>11</SP> may be any hydrocarbon radical and R<SP>11</SP> may also be hydrogen. Suitable liquid hydrocarbons are benzene, toluene, xylene, skellysolve B, fuel oil and kerosene. The organic phase may also contain a conditioner which is typically a long chain aliphatic alcohol e.g. capryl alcohol. Copper can be stripped from the organic extractant, thus regenerating it for reuse and recovering the copper values, by scrubbing the organic extractant with sulphuric acid or hydrochloric acid.
Patent GB-251992-A (GB)
Abstract: 251,992. Weiskopf, O. May 5, 1925, [Convention date]. Transfer mechanism particularly for a calculating machine of the key set and operated type, comprises a segment 7 suspended on a lever 8 and adapted to be raised into gear with the transfer tooth 6 and receiving pinion 5 of the corresponding pair of lower and higher numeral wheels of the counter. The segment is weighted to hang vertically and a hole 15 co-operates with a fixed rod 16 to limit the transfer movement to one step. The levers 8 are raised (1) by the master pinion slide 19 provided with a. cam 18 for this purpose and (2) by the ascent of the next lever to the right, the levers having alternately high and low pins 12 to engage holes or slots 13, 14 in the levers to the left.
Patent GB-1117797-A (GB)
Title: Perfumes and compositions of odorous materials
IPC: A61K8/31
Filed: 1966-06-07
Abstract: The invention comprises styrene derivatives having the general formula <FORM:1117797/C4-C5/1> in which R1 = CH3 or C2H5 and R2 = a branched or non-branched alkyl group containing 3, 4, or 5 carbon atoms, with the exception of the compound in which R1 = CH3 and R2 = isopropyl.  The compounds have odorous properties and may be compounded into perfume compositions.  They are obtained by dehydration of the corresponding carbinol <FORM:1117797/C4-C5/2> which is produced by reduction of the ketone obtained by the Fridel-Craft reaction of the R1, R2-disubstituted benzene with propionyl chloride.  b -Methyl 2-ethyl 5-isopropyl styrene and b ,2-dimethyl 5-tert. butyl styrene are specifically disclosed and claimed.ALSO:Carbinol compounds of general formula <FORM:1117797/C2/1> are obtained by reduction of the corresponding ketones <FORM:1117797/C2/2> produced by Friedel-Crafts reaction of pro-pionyl chloride with R1, R2-disubstituted benzenes, R1 being CH3 or C2H5 and R2 a C3- 5 branched or non-branched alkyl group.
Patent GB-1478025-A (GB)
Title: Non-contacting measurement apparatus rf apparatus for making measurements which are functions of variations in a physical or electrical parameter
IPC: G01N27/00
Filed: 1974-06-07
Abstract: 1478025 RF parameter measuring apparatus RADIONICS Inc 7 June 1974 [18 June 1973] 25308/74 Headings G1N and G1U Apparatus for measuring a physical or electrical parameter comprises a bridge connected to means 12, 14, 16 supplying a stable R.F. signal, a reference impedance 30 a coaxial cable 50 connected to a probe 34 for changing a standing wave on the cable in response to parameter change and an envelope detector 43. Temperature compensated crystal controlled radio-frequency oscillators 12, 14 are coupled through A.G.C. amplifier 16 to give modulated A.C. Reference impedance 30 is a stable resistance. Balancing transformer 40 is coupled via detector 43 and perhaps a tuned amplifier to meter 60 and recorder 62. Probe 34 is connected via network C 1  L 1  C 2  and coaxial cable 50 to terminal 22. C 1 , L 1  and C 2  are such as normally to match the characteristic impedance of the cable, which equals resistance 30. C 1  may also be an inductance. Alteration of the probe impedance in accordance with the parameter causes a standing wave varying such that the impedance at 22 varies to unbalance transformer 40. The probe 34 is for measuring blood pressure by the displacement of diaphragm 34a. Other probes are shown. They may have one of their two connections earthed, or have two electrodes, balanced or partially balanced with respect to earth. They may be for measuring the thickness of oil in a bearing or moisture in paper. The inductor L 1  may be used as the probe sensing the motion of conductive materials, when it may have ten to twenty turns on the centre post of a ferrite or powdered iron cup core.
Patent GB-425092-A (GB)
Title: Improvements in and relating to springing arrangements for vehicles
IPC: B60G21/05
Filed: 1934-09-03
Abstract: 425,092. Spring - suspensions for vehicles. DAIMLER-BENZ AKT.-GES., Unterturkheim, Stuttgart, Germany. Sept. 3, 1934, Nos. 25331 and 25332. Convention dates, Sept. 1, 1933 and Oct. 23, 1933. [Class 108 (ii)] In an independent spring suspension for the wheels of motor &c. vehicles of the kind in . which the wheels are guided by means of swinging links, half-axles or equivalent members, the oppositely disposed wheels are sprung both with respect to the frame and to one another by means of unguided helical springs or like means of a substantially frictionless character. In the construction shown in Fig. 1, the stub axle is supported from and guided by upper and lower links f, g working on horizontal pivot pins d, e, while a suspension spring l is disposed between the link g and a bracket o carried by the frame member a. The links g are extended to form bell-crank levers, between the oppositely disposed shorter arms p of which is arranged a helical spring r. An adjusting device m is provided to vary the position of the link g and the stressing of the compression spring l and tension spring r. Modifications are described in which the wheels are carried by swinging half-axles g<1> which at their inner ends are either cranked downwardly as shown at f<2>, or are fitted with upwardly projecting lugs, the transverse helical spring e<2> being located between such cranks or lugs.
Patent GB-667274-A (GB)
Title: Improvements in or relating to process of joining metal parts by solder
IPC: B23K35/30
Filed: 1948-09-29
Abstract: In soldering metal parts by heating the parts with solder between them to a temperature at which a portion of the solder is molten to wet the surfaces and a portion is solid to maintain the joint thickness the following solders are employed: (a) Ag, 40-70 per cent; Cu, 25-55 per cent; Zn, 5-15 per cent; Ni 0-7 per cent; (b) Ag, 5-30 per cent; Cu, 15-70 per cent; Zn, 15-40 per cent; Cd, 2-15 per cent; (c) Ag, 54 per cent; Cu, 40 per cent; Zn, 5 per cent; Ni, 1 per cent; with 35 per cent of tungsten particles; (d) Ag, 20 per cent; Cu, 45 per cent; Zn, 30 per cent; Cd, 5 per cent; (e) Ag, 50 per cent; Cu, 15.5 per cent; Zn, 16.5 per cent; Cd, 18 per cent; with 30 per cent of tungsten particles.
Patent GB-188862-A (GB)
Title: Improvements relating to tills
IPC: G07G1/00
Filed: 1921-09-27
Abstract: 188,862. Bromilow, H. J. Sept. 27, 1921. Boxes; revolving files.- The opening of a changegiving till for insertion of a note or coin is controlled by the insertion of a disc or other token. The tokens have distinguishing marks whereby the operator for any particular transaction may be identified, the tokens and the notes &c. being retained in the till in the order of insertion. Referring to the construction shown in Figs. 1 and 3, a pair of rotary drums 11 mounted on spindles 12 are each formed with one set of peripheral compartments, such as 49, Fig. 9, containing change inserted through inlets 14. The drums are given a step-by-step motion, to bring a change-giving compartment opposite a flap 38 and tray 40, by the actuation of a handle 5, which also controls, as described in Specification 175,041, the sliding cover 4 of the corresponding note &c. receiving compartment 2 or 3. The front cover of the drum-casing 13 is closed by a rotary disc 10, the front face of which is fitted with guides 28, 30 for the passage of the tokens 29. The inserted token is received on a tumbler 8 which is adapted to be rocked on its pivot 9 by a lever actuated by the depression of the handle 5. The tumbler 8 is normally locked against rotation by a cam 15 carried on the pivot 9 at the back of the disc 10, the cam being held in locking engagement with a pivoted detent 18 by a spring 20. A pin 21 on the detent 18 pro-' jects through a slot 22 in the disc 10 and is engaged by the token 29 in the (free) initial movement of the tumbler 8. The detent 18 being thus raised, the disc 10 is free to rotate, and the cam 15 rocks a pivoted lever 23, the notched end 24 of which engages one of a serious of notches 25 in the drum casing 11 to move the latter one stage. The token thus passes to the position 29<1> in front of a window 47, being held by a pawl 31, the spring 31<1> of which is overcome by the pressure of the next token. The tokens are ultimately received in tubular containers 32. In this form of the invention, a roller 41 operated by a milled wheel 42 is provided for withdrawing a note from the box 3. The roller 41 is normally locked against rotation by a pawl 43, engaging a ratchet-wheel fast with the roller, which is raised by depressing a hand-lever 45. The actuation of the lever 45 for this purpose is recorded by a pointer 46 on the dial 6 on which the ordinary change-giving transactions are recorded. Each transaction is recorded by a pointer, on a graduated dial 6, operated from the movement of the corresponding handle 5. The actuation of the lever 45, Fig. 1, for withdrawing a note from the box 3 operates a second pointer 46. In a modification, the notes &c. to be changed are placed in a second series of compartments 50, Fig. 9, arranged in the drum 11 alongside the changeholding compartments. By means of distinctive tokens as described with reference to Figs. 1 and 3, and corresponding markings on the compartments 49, 50, the operator in each transaction may be identified.
Patent GB-601413-A (GB)
Title: Improvements relating to the manufacture of threads and similar articles from polyvinyl compounds
Filed: 1945-10-02
Abstract: Threads, filaments, fibres and articles are made by the extrusion of a mixture of a polymerized vinyl compound and an incompletely condensed thermosetting resin, and heating to complete the condensation of the resin.  Threads and filaments so produced do not shrink so readily as those produced by spinning polyvinyl compounds. They may be stretched prior to the application of the heat treatment. Dyes, pigments, plasticisers and condensation catalysts may be incorporated in the spinning solution.  Any thermosetting resin and any vinyl polymer including polystyrene and the polyacrylates may be employed.  In an example, a mixture of 83 parts by weight of polyvinyl chloride and 17 parts of a soluble phenolformaldehyde resin is dissolved in a mixture of equal volumes of carbon disulphide and acetone and dry spun. The threads are stretched to 250 per cent of their original length by rapid passage through water at 97 DEG  C. and the reels holding the stretched threads are placed in an oven at 110 DEG  C. for 48 hours.
Patent GB-879970-A (GB)
Title: Improvements in lead-acid batteries
IPC: H01M10/08
Filed: 1959-07-27
Abstract: 879,970. Batteries. ELECTRIC STORAGE BATTERY CO. July 27, 1959 [Oct. 27, 1958], No. 25645/59. Class 53. A storage battery electrolyte consists of dilute sulphuric acid containing an aromatic aldehyde or the oxidation or reduction products of an aromatic aldehyde. Anisaldehyde, anisic acid or anisalcohol may be used, in an amount ranging from one to ten grams per litre of electrolyte. The same amount of cadmium sulphate may also be added.
Patent GB-821314-A (GB)
Title: Improvements in or relating to the driving mechanism of needle looms
IPC: D05B27/10
Filed: 1955-09-08
Abstract: 821,314. Variable-throw cranks. BYWATER Ltd., W., and O'BYRNE, B. Dec. 10, 1956 [Sept. 8, 1955], No. 25705/55. Class 80 (3). [Also in Group VII] A variable-throw crank mechanism for the take-up motion for the draw-through of the material in a needle loom comprises a crank-pin 11 carried on a plate 12 which is adjustable in slots 16a across a rotary plate 16 by relative rotation thereto of a disc 19 carrying a pin 18 engaging in a slot 12b in the plate 12. The disc 19 is secured to a shaft 20 carrying an inner bevel gear 26 whilst the plate 16 is supported on a spigot 21a carrying an outer bevel gear 25. The gears 25, 26 are engaged by bevel pinions 32, 33 respectively on a spindle 34 secured to a rotatable casing 23. Opposite bevel gears 27, 29 also engage the pinions 32, 33, the gear 27 being fixed to the sationary housing 28 whilst the gear 29 is secured to a worm-wheel 30 normally stationary but adjustable by an engaging worm 31 actuated by a hand wheel 38. The casing 23 is driven through an attached gear 24 and since bevel gears 27, 29 are stationary the bevel gears 25, 26 are driven together at twice the speed of casing 23. Thus plate 16 and disc 19 are driven together at the same speed to drive the crank-pin 11. If an adjustment of the throw of the crank-pin is required to vary the motion transmitted the bevel gear 29 is rotated by the worm 31 and wheel 30 the required amount to effect a relative rotation of disc 19 to plate 16. Plate 12 is thereby shifted across the plate 16 to alter the throw of crankpin 11.
Patent GB-971604-A (GB)
Title: Improvements in or relating to motion picture reels
Inventor: NAGEL HUGO
IPC: G03B21/32
Filed: 1962-07-06
Abstract: 971,604. Line spools. KODAK Ltd. July 4, 1963 [July 6, 1962], No. 25964/62. Heading G2E. The detachable cover for a cine spool comprises a base 10 with a cylindrical rim 11 within which the spool fits, and two resilient fingers 13 extending from the base and terminating in ridges 14 which snap over ridge 9 running circumferentially round the inner surface of hollow spool hub 1. Hub 1 has a slot 2 receive the film end and radially inwardly extending crabs 7 supporting socket 8 for the spool spindle. Plastics materials may be used.
Patent GB-892976-A (GB)
Title: Improvements relating to hydraulic pit-props or the like
IPC: E21D15/51
Filed: 1958-08-13
Abstract: 892,976. Valves. GUTE-  HOFFNUNGSHUTTE STERKRADE A.G. Aug. 13, 1958 [Aug. 13, 1957], No. 26081/58. Class 135. In an hydraulic pit prop, a spring-pressed inlet valve 9 is mounted on a relief valve 5 which is held on its seat by an extensible stem 4. The stem is adjustably connected to the wall of the pressure chamber 1 by a screw-thread 3. The valve 5 is provided with a nipple 6 and a passage 11 from the valve 9 to the chamber 1.
Patent GB-849361-A (GB)
Title: Improvements in and relating to shells for crash helmets
Inventor: GLASSON PETER JOSIAH
IPC: A42B3/06
Filed: 1956-08-27
Abstract: 849,361. Crash helmets. COMPTON, SONS & WEBB Ltd., J. May 3, 1957 [Aug. 27, 1956], No. 26124/56. Class 63 [Also in Group VIII] A shell for a crash helmet comprises one or more caps formed of knitted or woven nylon fabric and one or more layers of a glass fibrous material, fitted one inside the other, and bonded by a cured matrix of thermosetting resin (see Group VIII). As shown, such a shell I has built up on its outer surface a plurality of layers of cork 2 having an extension to form a peak 3. The cork layers are covered with waterproof material 4, e.g. cotton-backed polyvinyl chloride, the peak being similarly covered on both sides. The edge 5 of the peak and rim 6 of the helmet are bound with similar material 7. The unit has attached to it a head harness 8 with earflaps 9 and chinstrap 10 and is sewn or rivetted into the body of a helmet 11. Stitch marks or rivet heads are covered by a band 12 of material similar to that of the helmet. Holes 13 with rubber grommets 14 provide ventilation. In an alternative construction (not shown) the shell has applied to it and sewn into position a suitably shaped felt peak and brim unit, stiffened with shellac or other stiffening agent, and covered on both sides with preferably waterproof material, e.g. unbacked polyvinyl chloride. A head band harness is then rivetted or sewn into position and the outer surface of the shell lined with cork and ventilation holes provided as before. Reference has been directed by the Comptroller to Specification 776,179.
Patent GB-848800-A (GB)
Title: Process for the manufacture of sheets or films of thermoplastic materials
IPC: B29D7/00
Filed: 1956-08-27
Abstract: Thin sheets or films of a vinyl polymer containing little or no plasticizer, the polymer being a homopolymer of vinyl chloride, vinyl acetate, an acrylic acid ester, styrene or acrylonitrile, or a copolymer containing a major proportion of such a monomer, are made by heating a sheet or film of the polymer within a range of temperature at which the polymer is in its thermoplastic state as distinguished from its thermoelastic state and stretching it at this temperature until its thickness has been reduced to a predetermined value.  The lower limit of the range is defined as the temperature nearest the second maximum (observed when elongation at break is plotted against temperature) at which d2E/dT2 = O, where E is elongation at break and T is the temperature in degrees centigrade. The upper limit of the range is the point at which decomposition of the polymer begins. In the example, a sheet of unplasticised polyvinyl chloride 300 m  thick is heated to over 175 DEG  C. by passing it over heated rollers and stretched while at this temperature by subsequently passing it over a further set of rollers driven at a higher peripheral speed, the thickness of the sheet being thereby reduced to 30 m .  The stretched sheet is then passed over cooling rollers.
Patent GB-954982-A (GB)
Title: Improvements relating to the construction of suspended ceilings
IPC: E04B9/16
Filed: 1960-07-28
Abstract: 954,982. Suspended ceilings; clamps. M. FORKIN, and FORKIN BROS. Ltd. July 28, 1960 [Aug. 11, 1959], No. 26254/60. Headings E1V and E2B. Ceiling elements 12 are attached to laths 2, Fig. 1, or to pallets 14, 14<SP>1</SP>, Fig. 6, which laths or pallets are slotted to receive flanged U-shaped saddle pieces 1 each having a stem bifurcated by a slot 7, Fig. 4 which is engageable with a batten 3 and which is closed by a wedge or key 9 passed through the loop of the saddle piece above the batten so that the saddle piece is supported by the batten. In Fig. 4 the pallet 14 is supported from bearers 4 by saddle pieces 1a, and the battens 3 are in turn supported on the pallet 4 and are connected thereto by saddle pieces 1b. In an alternative arrangement, Fig. 8 (not shown) the battens rest upon the flanges of inverted T-shaped bearers and are connected thereto by connecting members of double U-shape which are described in Specification 894,082.
Patent GB-504700-A (GB)
Title: Process for the treatment of spent cobalt catalysts
IPC: B01J38/68
Filed: 1938-09-08
Abstract: 504,700. Regenerating catalysts. RUHRCHEMIE AKT.-GES. Sept. 8, 1938, No. 26275. Convention date, Sept. 25, 1937. [Class 1 (i)] Cobalt catalysts which are precipitated on kieselguhr and have been used for the synthesis of benzines from carbon monoxide and hydrogen are regenerated by dissolving in nitric acid and re-precipitating the catalytically active material, the acid containing not more than 20 per cent and preferably no more than 3-5 per cent of free nitric acid. Preferably the solvent liquor contains also the catalytically active material, e.g. cobalt nitrate. The catalysts are treated above the melting point of the solid paraffins contained in the catalyst e.g. at 70-90‹ C., the kieselguhr being readily separated by filtration &c., and the paraffins separating as an oily layer.
Patent GB-155953-A (GB)
Title: Jigging conveyors
IPC: B65G27/00
Filed: 1919-10-27
Abstract: 155,953. Becker, G. Oct. 27, 1919. Jigging-conveyers in which the trough is supported by swinging arms comprising oppositely-threaded sleeves 2, 3, connected by an oppositely-threaded rod 4, have the actuating- mechanism and trough connected by a pin 15 which can be inserted in either of the holes 17, 18 so that the conveyer can feed in either direction. In a modification, the pin 15 is connected eccentrically to a shaft which can be turned in bearings on the trough.
Patent GB-1121219-A (GB)
Title: Device for fixing the inner end of a timepiece hairspring and for centering the hairspring
IPC: G04B17/34
Filed: 1966-06-14
Abstract: 1,121,219. Springs. A. CHARPILLOZ, [trading as FABRIQUES HELIOS ARNOLD CHARPILLOZ]. 14 June, 1966 [6 July, 1965], No. 26372/66. Heading F2S. [Also in Division G3] A collet for fixing the inner end of a timepiece balance spring 4 comprises an inner ring 1 provided with an axial extension 3 and an outer ring 2 rotatable about the inner ring, the outer ring having an axially extending flange 5 so that after placing the inner end of the spring against the outer face of the extension and rotating the outer ring, the spring is clamped between the extension and the flange when the latter are radially aligned. The rings 1 and 2 are preferably made from brass and steel respectively and the spring 4 may or may not have a bent end portion 6. The flange 5 and the extension 3 preferably form 60 and 30 degree segments respectively of the rings but the extension may form a segment less than 30 degrees in which case the spring 4 is additionally glued to the extension.
Patent GB-1497709-A (GB)
Title: Steam and vacuum cleaning apparatus
IPC: A47L11/34
Filed: 1975-06-20
Abstract: 1497709 Steam cleaning apparatus STEAM VACUUM EXTRACTION Ltd 20 June 1975 26394/75 Heading A4F In a fabric cleaning apparatus comprising a storage tank 9 for cleaning liquid, e.g. hot water with a water softener and/or cleaning fluid, a water pump 4 and motor therefor for supplying liquid from the tank 9 to a hand tool (not shown), and a vacuum pump 16 and motor 33 therefor for sucking dirty water back into a storage tank 24, both tanks 9 and 24 are supported on the lower deck 32 of a trolley and the two pumps 4, 16 and their motors are supported on an upper deck 27 which can be detached from the trolley e.g. by releasing toggle fasteners 26, the water pump motor lying on the opposite side of a partition 31 from the vacuum pump motor 33 such that the two motors are cooled by separate air-flows. As shown the tank 24 lies within tank 9 and both tanks are transparent. A detachable cover 1 having air inlets and outlets for the pumps and their motors is provided.
Patent GB-1416314-A (GB)
Title: Liquid dispensing nozzle
IPC: B64D37/14
Filed: 1972-11-03
Abstract: 1416314 Pipe couplings DOVER CORP 3 Nov 1972 [3 Nov 1971] 26411/75 Divided out of 1416313 Heading F2G In a quick-release pipe coupling, as described in the parent Specification, a nose seal 62 is  formed and mounted so as to be readily replaceable.