baber/WOPTO huggingface dataset:
Patent GB-160224-A (GB)
Title: Improvements in screw or like propellers
IPC: B64C27/54
Filed: 1919-11-21
Abstract: 160,224. Pateras Pescara, Raul, Marquis of. Nov. 21, 1919. Screw propellers.-Comprises a screw propeller in which the incidence and camber may be varied during each revolution, the extent of which variation is adjustable. The propeller blade has a main part a, Fig. 1, carried by a tube 15, Fig. 2, and a tail part b pivoted at E and on the rod 13. Incidence and camber are varied bv oscillating the tube 15 and rod 13 respectively through screws and sliding nuts 20, 11. The nuts 20 have a roller 18 which presses against a. cam 17 coaxial with the propeller shaft. This cam is shaped to give a variation in incidence during a revolution, the extent of which variation is adjusted by sliding the cams through screw and rack gear and rods 31, 32 until a portion of the. required contour is opposite the rollers. For varying the cam, the nuts 11 are pivotally attached to a ring 7 freely mounted on a disc 5, the eccentricity of which can be varied by the handlever 3.
Patent GB-487857-A (GB)
Title: Improvements in pigments
IPC: C09C1/00
Filed: 1936-10-26
Abstract: Compound pigments are made by coating particles of barium sulphate, zinc sulphide, or a mixture thereof, as an extender, with not more than 2 per cent by weight of titanium dioxide, deposited on the particles of extender before calcination.  The titanium dioxide may be applied as a single coating, or as a plurality of coatings by consecutive precipitations.  According to examples: (1) lithopone coated with titanium dioxide is prepared by adding the necessary amount of titanium sulphate solution, together with acetic acid, to zinc sulphate liquor, and gradually adding barium sulphide liquor. The acetic acid, which holds the titanium in solution during the precipitation of the lithopone, is then neutralized by an excess of alkali, and the titanium is thereby precipitated as hydroxide on the lithopone, which is then calcined; (2) the necessary amount of titanium, in solution, is added to a slightly acid slurry of a precipitated zinc sulphide pigment, and, after the mixture has stood for some time, the titanium is precipitated by the addition of alkali.
Patent GB-473735-A (GB)
Title: Improvements in the production of hollow glass units
IPC: F21V3/00
Filed: 1936-10-26
Abstract: 473,735. Glass manufacture. WEBB'S CRYSTAL GLASS CO., Ltd., JOHNSTON, R. W., and NORTHWOOD, J. H. Oct. 26, 1936, No. 29105. [Class 56] [Also in Group XI] A blown hollow glass article is provided, at a position other than the opening through which the article is blown, with an inwardly-extending flange a, which. is screw threaded on its inner surface. The blowing opening may be provided with an outwardly-extending flange b which is screw threaded on its outer surface. The openings may be formed in the end wall of the article, which may be cylindrical or of any other configuration. An article, such as a lamp globe, can be screwed on to supports, such as ceilings or walls, with the upper surface flush with the support. A number of such units can be screwed together to form a hollow glass body of any desired length, and such bodies may serve as ground signs for aerodromes, for signs, and for advertisement purposes. The flange b may be closed by a glass cap and the units may be sealed to one another and evacuated. The articles are made in a mould provided with an externally-screwed member co-operating with a correspondingly screwed opening in the wall of the mould, the axial movement of the member being determined by suitable stops. When the article is being blown, the glass is forced against the member thereby forming the internally-screwed flange a. The member is unscrewed, while the glass is still hot, to allow the finished article to be removed from the mould. After the article has been annealed, excess glass is cut away to form the opening at the bottom of the flange.
Patent GB-1464419-A (GB)
Title: Clutch disc assembly
IPC: F16F15/129
Filed: 1974-07-01
Abstract: 1464419 Mounting clutch discs on hubs DAIMLER-BENZ AG 1 July 1974 [28 July 1973] 29111/74 Heading F2U A clutch disc part 11, 12, 13 carrying a friction lining 10 is resiliently-mounted on a hub part 15, 16 by means of interposed springs retained in ports in the hub part and co-operating with larger ports in the disc part, damping devices 21, 22 being provided, the use of one at least being controlled by a control plate 23 which engages into at least one of the ports. As shown, spring stages 1 to 4 are provided, the ports 17, 18 in the first stage being equal in circumferential length while those of stages 2, 3 and 4 differ by increasing amounts. The control plate 23 has a tab 30 engaged in a widening 29 of the port 28 and an embossment 26 which extends into the port 27 for retaining a control spring 24. The first damping device 21 is acted upon by a helical spring 31 while the second damping device 22 is acted upon by a spring washer 32.
Patent GB-814761-A (GB)
Title: Ceramic pigments
IPC: C09C1/00
Filed: 1956-09-24
Abstract: 814,761. Glass compositions; glazes. HARSHAW CHEMICAL CO. Sept. 24, 1956 [July 5, 1956], No. 29168/56. Class 56. A ceramic pigment composition or glaze con-' sists of the oxides of zirconium, tin, silicon and vanadium, the oxides of Zr, Sn and Si being present in the relative parts by weight indicated as falling within the area banded by lines AB, BC, CD and DA, i.e. ZrO2 25-94, SnO2 1-60, SiO2 5-74, and the U2O5 is from 0À75 per cent.-9 per cent. by weight of the other oxides. Preferred composition falling within area bounded by lines EF, FG, GH, HE and with V2O5 from 1 per cent. -5 per cent. The vanadium may be added in the form of ammonia vanadate, or sodium vanadate, but excess alkali is avoided to maintain the colour. The mixture is calcined at temperatures from 1200‹C. to 1500‹C.
Patent GB-858177-A (GB)
Title: Polyvinyl resin plastisols
Inventor: MOBBERLEY WYNDHAM
IPC: C08K5/053
Filed: 1956-09-25
Abstract: Polyvinyl resin plastisol compositions comprise a polyvinyl resin, a plasticizer therefore and a viscosity stabilizer consisting of an aliphatic dihydric alcohol.  The resin may be polyvinyl chloride, copolymers of vinyl chloride with vinylidene compounds such as vinylidene chloride and mixtures thereof.  The plasticizer may be tricresyl phosphate, triethylene glycol dicaprylate and phthalate esters of mixtures of monohydric alcohols containing 7 to 9 carbon atoms.  Specified glycols include ethylene glycol, a -propylene glycol, a -butylene glycol, b -amylene glycol, tetramethylene glycol, dimethyl tetramethylene glycols, hexylene glycols and polyethylene glycols such as diethylene glycol and triethylene glycol.  The compositions may also comprise stabilizers, e.g. dibutyl tin maleate. Specification 858,176 is referred to.
Patent GB-922100-A (GB)
Title: Improvements in dynamo-electric machines
Inventor: WALKER JACK HOLMES
IPC: H02K3/28
Filed: 1960-08-24
Abstract: 922,100. Change-pole windings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 21, 1961 [Aug. 24, 1960], No. 29259/60. Class 35. Each phase of a change-pole winding is divided into two unequal sections connected in series, one section being reversely connected to change the harmonic pattern of the M.M.F. wave to produce a different pole-number. In the Figure, one section is indicated by filled circles and the other by open circles. The numbers indicate the number of consecutive coils or slots represented by each circle. Thus one section occupies 19 slots and the other (middle) section occupies 17 slots. The sections are spaced from each other by one pole pitch in which there are no conductors of that phase. The other phases are similarly arranged but displaced round the machine. With the direct, connection shown, the machine has 14 poles, but with the centre section reversely connected, 16 poles are produced.
Patent GB-701641-A (GB)
Title: Improvements in electric accumulators
IPC: H01M50/429
Filed: 1950-11-29
Abstract: 701,641. Batteries. YARDENY INTERNATIONAL CORPORATION. Nov. 29, 1950 [Nov. 29, 1949], No. 29266/50. Class 53 An accumulator is provided with plates separated by sheets of semi - permeable material such as regenerated cellulose. The whole of the plates and separators are placed under pressure which lies between two limits namely the value under which the life of the accumulator is lessened by falling of the active material from the plates and the value above which the electro-chemical changes are slowed down. The thickness of the separators required to obtain the optimum pressure is obtained from the ratio of the length of the container minus the total thickness of the plates to the total thickness of the dry separators. This ratio should be about 2.3. Curves are given in the Specification showing how this figure is obtained. Fig. 1 shows an apparatus for enabling a curve to be plotted showing how the pressure to which the plates and separators are subjected varies with the ratio referred to above. A pile of dry separators 19 of known thickness is placed on the floor 13 of a receptacle 10 containing a loosely fitting piston, 17 carrying a rod 16 to which is attached a plate 27 carrying a pointer 28 moving over a calibrated scale of pressures 29. A spring 26 abuts against the plate 27 and a plate 25 adjustable in height by a screw 24. The screw 24 is adjusted so that the spring is under zero compression and electrolyte is then poured into the upper compartment of the receptacle 10. The liquid flows round the piston into the space below the piston and saturates the separators which swell and force the piston upwards. The pressure exerted by the swollen separators is read off on the scale 29. Specifications 680,793, 682,164, 682,165, 2795/49, (as open to inspection under Sect. 91) and 698,405 are referred to.
Patent GB-756332-A (GB)
Title: Compositions as nutrients for plant growth
IPC: C05D9/02
Filed: 1952-11-21
Abstract: 756,332. Glass frit plant nutrient; soil-less plant culture. THORNTON, A. A. (Ferro Enamel Corporation). Nov. 21, 1952, No. 29464/52. Classes 6 (2) and 111. A nutrient composition for plant growth, especially suitable for soil-less culture, comprises a glass matrix slowly soluble throughout produced by fusion and fritting in water, the matrix containing more than 2.0 per cent iron by weight and non- toxic amounts of one or more substances selected from the class of inorganic compounds of manganese, zinc, copper, boron, cobalt and molybdenum. The term slowly soluble throughout is defined in respect of a test set forth in the Specification. The preferred glass comprises 25 to 75 per cent SiO 2 , 1 to 10 per cent CaO, 1 to 15 per cent K 2 O, 1 to 5 per cent MgO and from 3 to 20 per cent Na 2 O in addition to iron and the minor elements. Phosphorous may also be included. The glass compositions are prepared by thoroughly mixing the ingredients, smelting them at about 2,400 to 3,000‹ F. and when the entire mass becomes fluid, fritting the material in water. To obtain a complete fertilizer the vitreous composition may be mixed with a compound such as urea-formaldehyde capable of slowly releasing nitrogen. The compositions may be employed in sub-irrigation culture as shown in Fig. 1 where a pot A contains the vitreous composition and the pot B lumps of quartz. Both pots are supplied at 4-hour intervals by a nutrient solution from carboy C which contains, for example, magnesium sulphate, copper nitrate and potassium phosphate as well as boric acid, zinc sulphate, copper sulphate and molybdenum. The pot B is employed as a control. The vitreous compositions suitably contain 2 to 15 per cent of iron calculated as Fe 2 O 3 .
Patent GB-628989-A (GB)
Title: Improvements in or relating to processes of tanning and the tanned materials, for example leather, resulting therefrom
IPC: C14C3/18
Filed: 1946-10-03
Abstract: Artificial protein fibres such as casein filaments are insolubilized in an acid-reacting aqueous medium containing resorcinol or pyrogallol in conjunction with a free aldehyde selected from formaldehyde, polymers thereof, acetaldehyde, crotonaldehyde, benzaldehyde and furfuraldehyde at a pH of 0.3-3.0.  Strong acids such as sulphuric, hydrochloric, phosphoric or oxalic are used to produce the required pH in the liquor which is subsequently neutralized by the addition thereto of alkali materials such as borax, sodium carbonate, sodium bicarbonate, sodium acetate, sodium formate, sodium thiosulphate, ammonium bicarbonate or hexamethylene tetramine.  The Specification as open to inspection under Sect. 91 refers to the use of nuclear substituted derivatives of resorcinol and pyrogallol, which may wholly or in part replace the resorcinol or pyrogallol.  Thus, resorcinol may be replaced wholly or in part by hexyl-, tertiary octyl-, benzyl-, phenyl- or methoxy-resorcinol. This subject-matter does not appear in the Specification as accepted.
Patent GB-244261-A (GB)
Title: An improved instrument for massage particularly applicable for treating the gums
IPC: A61H15/00
Filed: 1924-12-10
Abstract: 244,261. Nuyts, P. E. E. Dec. 10, 1924. Massage.-A device for massaging the gums &c. comprises balls or rollers a mounted on spindles b carried by a frame c. This frame rests upon a spring d housed in a socket e in a handle f.
Patent GB-866594-A (GB)
Title: Improvements in or relating to articles of furniture
Inventor: TURPIN THOMAS HERBERT
IPC: A47B67/04
Filed: 1956-09-28
Abstract: 866,594. Dressing-tables, sideboards &c. HARRIS LEBUS Ltd. Sept. 30, 1957 [Sept. 28, 1956], No. 29737/56. Classes 52(1) and 52(3). In a dressing-table, sideboard &c. having one or more open-topped compartments 4 provided with a lid 12 rearwardly slidable to open position, the lid is connected by a linkage including levers rockable about vertical axes to a sliding supporting surface 7 beneath the compartments in such a manner that pulling out of the part 7 opens the lid. A subsidiary lid 13 is hinged to the front of lid 12 to close the front of the compartments or the lids 12, 13 may be of the roll-top desk type. A fixed shelf 15 is mounted above the compartments 4. As shown in Fig. 5 Parts 7, 12 carry pivoted levers 16, 21 which are pivoted to opposite ends of lever 18 the centre of which is rotatable about a fixed axis 20 so that the parts 7, 12 move in opposite directions. The compartments may be carried on the rear of part 7. According to the Provisional Specification, these parts may be connected by rack and pinion mechanism, tambours, or straps passing round rollers.
Patent GB-432543-A (GB)
Title: Apparatus for the manufacture of aromatic amines
IPC: C07C209/64
Filed: 1933-10-26
Abstract: <PICT:0432543/III/1> Apparatus for producing diarylamines by heating arylamines under pressure with a catalyst comprises a pressure-resisting vessel A and rectifying column D and pressure release means Q adapted to maintain a constant pressure in the vessel.  The release means is preferably opened by a thermostat O in the head of the rectifying column when the temperature falls below a given value.  The arylamine is supplied by the pump L and passes through a preheater M; the reaction product may be blown off by the pipe H and valve J.  The apparatus may be lined with or partly made of silicon-nickel alloy E and/or protected by a lining of acid-proof cement F.
Patent GB-1092427-A (GB)
Title: Wax-polymer emulsion coatings
IPC: D21H19/22
Filed: 1965-07-14
Abstract: Water impermeable wax-polymer films are applied to substrates by mixing an aqueous wax emulsion with an aqueous emulsion of a polymer having the general linear configuration -(CH2)n -CH.R where n is an average integer between 10 and 50, R is a hydrocarbyl radical having 1-16 carbon atoms and the unit (CH2)n is an unbranched hydrocarbon chain, the polymer having an intrinsic viscosity of 1 to 6, applying the emulsion mixture to a substrate, removing at least sufficient water from the applied emulsion mixture to form a wax-polymer film, heating the thus formed film to a temperature above the melting point of the wax but below the thermal decomposition temperature to obtain particle coalescence, and cooling the film. The wax may be a paraffin wax especially a heavy distillate wax, a microcystalline wax or a plastic wax obtained by the deoiling of soft wax fractions which are separated from paraffin waxes during deoiling and dewaxing procedures, or a blend thereof.  The polymer may be a copolymer of ethylene and a higher olefine having from 3 to 18 carbon atoms in the molecule and containing at least 60% ethylene monomer e.g. a copolymer of 80 - 95% ethylene with 20-25% C3-C18 alpha alkene.  The higher olefin of the copolymer may be an alpha olefin such as propylene, butene-1, actene-1 or actadecene 1.  The polymer may be a copolymer of diolefines such as isoprene.  Styrene or alkylated styrenes may be used in place of aliphatic olefines.  Methods of preparing the copolymers and emulsifying the waxes and copolymers are described. Surfactants used in producing the wax and copolymer emulsions are listed.  In the Examples strips of milk carton board are coated by dipping in a blend of a paraffin distillate wax emulsion and an ethylene-propylene copolymer latex.  In Example II the coated strips are passed between bright chrome rolls of a rubber mill to impart a gloss to the surface.
Patent GB-229411-A (GB)
Title: Improvements in or relating to globe fittings for electric lamps
IPC: F21V15/02
Filed: 1923-11-28
Abstract: 229,411. McGeoch, W. Nov. 28, 1923. Securing globes to holders. -In an electric lamp fitting in which the ring 5 of a globe guard 6 screws into a cap 1 and grips the flange of a glass or like transparent globe 3 together with a rubber washer 4 between it and the cap, the guard is retained in position by one or more radially movable rods 10 engaging in helical grooves 17 cut across the threads on the ring 5. The rod 10 screws into a nut 12 which abuts against the end of a cylindrical casing 14 and, when rotated, withdraws the rod 10 against the action of a spring 15. According to the Provisional Specification the threaded portions of the ring of the globe guard and of the cap may be replaced by projections on the ring of the globe guard adapted to engage with helical grooves formed in the cap.
Patent GB-1367237-A (GB)
Title: Electromagnetic carrier and guide system
IPC: B61B13/08
Filed: 1972-06-27
Abstract: 1367237 Electromagnetic levitation and guiding system KRAUSS-MAFFEI AG 27 June 1972 [9 July 1971] 29986/72 Heading B7L [Also in Division H1] An electromagnetic levitation and guiding system for a suspended railway comprises an electromagnet 1 which is suspended in free floating manner within an armature rail 12 by energization of a vertical winding 4, deflection of the magnet from its central lateral position being automatically counteracted by energization of a horizontal winding 7, 8 which equalizes the flux in air gaps 17 and 18.
Patent GB-1468513-A (GB)
Title: Battery chargers
IPC: H02J7/10
Filed: 1973-06-25
Abstract: 1468513 Automatic control of battery charging S & W (ELECTRONICS) Ltd 19 June 1974 [25 June 1973] 30072/73 Heading G3R A battery is charged by way of a semi-conductor switch which is triggered by a comparator circuit responsive to the battery voltage and including a Zener diode which sets a reference level equivalent to the fully charged battery voltage. The reference level is automatically raised by the passage of charging current through a resistance element which is in thermal contact with a temperaturesensitive semi-conductor device connected in the comparator circuit. As shown, a battery 12 is connected in series with an SCR triggered by a relaxation oscillator comprising a uni-junction transistor UJT and a coupling transformer T. When the battery voltage is low, a capacitor CE charges through a resistor RE and the oscillator produces triggering pulses until a Zener diode Z D  breaks down and prevents further charging of the capacitor CE. The Zener diode is strapped against the SCR so that heat generated by current pulses in the SCR raises the temperature and hence the breakdown voltage level of the Zener. The battery therefore continues to be charged for a period after its normal fully charged voltage has been reached, the Zener diode cooling down when charging stops and reaching a normal temperature at which the circuit operates to maintain the battery at full charge. The temperature effect may alternatively be achieved by connecting a PTC thermistor in series with the Zener diode, or by replacing the resistor RE with an NTC thermistor. A transistor may be used in place of the SCR, and the circuit may be encapsulated in a plastics box.
Patent GB-859624-A (GB)
Title: Improvements in devices for combined coarse and micrometer adjustments in optical instruments, particularly spectroscopes
Inventor: GOTZE WILLY
IPC: G01J3/02
Filed: 1957-09-25
Abstract: 859,624. Optical apparatus; measuring angles. ZEISS JENA, C. VEB. Sept. 25, 1957, No. 30107/57. Classes 97(1) and 97(2) A mechanism for combined coarse and micrometer adjustments in optical instruments, has coaxial thumb wheels for quick and slow motion, a quick motion screw actuatable by the quick motion wheel and arranged to actuate the member to be adjusted and extending into one leg of a bell crank rotatably mounted on a part of the optical instrument other than the member to be adjusted, and a slow motion screw actuatable by the slow motion wheel and arranged to move the other leg of the bell crank. The invention may be applied to spectroscopes. In the form shown, an indicating member 10 is rotated about an axis 9 when a screw spindle 7 is linearly displaced, this spindle being held in contact with a lug 8 on the member 10 by a spring attached to one arm 12 of a bell crank lever pivoted at 13. The arm 12 is attached to the nut in which the spindle 7 is rotatable. The coarse adjustment of the spindle 7 is effected by a knob 3 which rotates bevelled gears 4 and 5 connected to spindle 7 through a universal joint shaft 6, which is displaceable in the direction of its length. Fine adjustment is effected by rotating the knob 15 having a fine thread 16 to displace a bolt 18 and thus pivot the bell crank lever about the axis 13, the bell crank lever being held against the bolt by a spring 19.
Patent GB-257794-A (GB)
Title: Improvements in method of making hosiery
IPC: D04B1/24
Filed: 1925-11-30
Abstract: 257,794. Allen, J. M. Nov. 30, 1925. Stockings and socks.-Double walled hosiery is made by knitting the outer layer, on a circular machine, with a tubular welt 6 and a free fabric strip 8, reversing the article on a form so that the strip comes on the outside and drawing a separately knitted lining over it. The two layers are seamed together longitudinally by stitches 9 and the top edge of the lining is united to the edge of the strip 8 in a looping machine.
Patent GB-1496408-A (GB)
Title: Antibacterial compounds
IPC: A61P31/04
Filed: 1976-07-18
Abstract: 1496408 Cephalosporin and penicillin derivatives SANGYOKAGAKU-KENKYUKYOKAI 14 July 1976 [18 July 1975] 30233/75 Heading C2C Novel compounds I (-COOR is a free or esterified carboxyl group; X is H, halo, azido, 1-6C alkoxy, 1-6C alkylthio, 1-6C alkanoyloxy or formyloxy; and W is -C(CH 3 ) 2 -CH(COOH)- or where Y is H, azido, 1-6C alkanoyloxy, CH 2 S-, CH 3 O- or heterocyclylthio) and salts thereof are prepared by acylation of the appropriate 7-amino-cephem or 6-amino-penam derivative. Pharmaceutical compositions comprise a compound I together with suitable diluents or carriers.