baber/WOPTO huggingface dataset:
Patent GB-321529-A (GB)
Title: Improvements in or in connection with apparatus for the manufacture of metal tubes and other tubular metal articles
IPC: B21C3/08
Filed: 1928-10-19
Abstract: 321,529. Wellman Seaver Rolling Mill Co., Ltd., and Smith, S. Oct.. 19, 1928. Rolling tubes.-In making a tube by pushing a hollow billet through successively decreasing roll-passes while supported on a mandrel, the sets of two or more rolls, forming the passes, are arranged in close proximity and with the axis of each roll 15 of one set at an angle to the axes of the rolls 15<1> of the adjacent or other sets. The rolls 15, 15<1> are mounted, by means of roller bearings, in housing 18, built up of L-shaped units, and secured on opposite sides of a ring 13 which is held in a groove 12 by a saddle 14.
Patent GB-299023-A (GB)
Title: Process for the manufacture of artificial leather and the like
IPC: D06N3/02
Filed: 1928-10-19
Abstract: 299,023. Lonzawerke Elektrochemische Fabriken Ges. Oct. 19, 1927, [Convention date]. Plastic compositions containing fibres and cellulose derivatives.-In the manufacture of artificial leather, fibrous material, e.g. long stapled cotton with or without animal fibres is kneaded preferably at low temperatures with a solution of a cellulose derivative or of a mixture of several such derivatives which is capable of being coagulated, and then forced through slotted apertures into a coagulating bath which may effect complete coagulation or may be one of a train of such baths one or more of which may be heated. The fabric may then be treated with water or dilute acids, alkalies or salt solutions to remove the solvent and then pressed on a water calender to remove water. While still moist thev are treated with liquid softening agents, e.g. oils or fats at ordinary or raised temperatures and then again pressed to remove the excess of softening agent. They are then dried, e.g. by treatment in a magnesium chloride-glycerine bath followed by drying in air. The second coagulating bath may include strong alkalies for mercerizing the fibres. The fabric may be coloured by dyeing the fibres, including pigments in the raw material, adding dyes to the softening bath or dyeing the finished fabric, and may be coated with a varnish, e.g. of cellulose acetate. The product can be embossed, calendered or goffered and can be stretched and given a soft feel by passing between calender rolls run at different speed. The surface may be roughened.
Patent GB-971777-A (GB)
Title: Chemical plating
IPC: C23C18/50
Filed: 1961-08-23
Abstract: Adherent metal coatings are produced on metal objects such as surfaces of iron, steel, copper, brass or aluminium, or on pretreated plastic surfaces, such as of acetyl cellulose, cellulose acetobutyrate, polyglycol-terephthalate or polyacrylonitrile foil, by contacting them with an aqueous solution of a salt of the metal to be applied, e.g. NiCl2, CoCl2, NiSO4, CoSO4, FeSO4 and/or ZnCl2, and as reducing agent at least one boron-nitrogen compound which carries 1-3 hydrogen atoms on the boron atom and at least one organic group on the nitrogen atom, i.e. N-alkyl-borazanes, -borazenes, -borazines and/or -borazoles, e.g. N,N1,N11-tri, N,N1-di or N-mono-methyl/ethyl-borazane, N-mono or N,N1-dimethyl-borazene, N-isopropyl-borazane/borazene/borazine, and/or N-trimethyl-borazole. The latter compounds are made water-soluble by a water-soluble alcohol or ether, e.g. methanol, ethanol, butanol, dioxan or diethylene glycol dimethyl ether.  The plating bath may have a pH range of between 2 and 14 with a working temperature of between 20 and 100  DEG C.  With an alkaline bath the metals are kept dissolved with complex formers such as ammonia, potassium sodium tartrate, sodium citrate or ethylene-diamine. Sodium hydroxide, hydrochloric acid or ammonium chloride may be added to the bath.  For coating plastics the surfaces may be pretreated first in a bath containing NaOH, an alkyl sulphonate and water, then in a bath containing ZnCl2, HCl, an alkyl sulphonate and water, and finally in an aqueous solution of PdCl2 and HCl.  The coatings produced can be reinforced electrolytically.
Patent GB-275062-A (GB)
Title: Improvements in instruments for indicating gradients and factors relating thereto
IPC: G01C9/00
Filed: 1926-12-03
Abstract: 275,062. Tapley, W. Dec. 3, 1926. Addition to 249,438. Indicating.-In a gradient indicator for vehicles according to the parent Specification the two or more scales indicating different but correlated measurements are observed through a single opening in the casing.
Patent GB-1462868-A (GB)
Title: Electrolytic recovery for silver from used photographic solutions
IPC: G03C5/00
Filed: 1973-06-27
Abstract: 1462868 Electro-recovering silver PHOTOGRAPHIC SILVER RECOVERY Ltd 17 June 1974 [27 June 1973] 30650/73 Addition to 1285602 Heading C7B An apparatus for recovering Ag from used bleach-fix photographic solution comprises an electrolytic recovery or plating cell 11 preceded by a buffer or store tank 12 receiving the used solution and from which the solution is pumped to the cell intermittently by metering pump 13, switch means operated according to the solution level in the buffer tank, e.g. top and bottom level switches A and D, to control the pump and switching on or off of plating current of the cell, and means for automatically separating the cathode assembly and the solution from one another when the plating current is switched off; e.g. either lifting means also controlled by the switch means for automatically lifting the cathode assembly out of the solution in the cell, or a pump 14 started by the switch means for pumping solution out of the cell automatically, when the plating current is switched off. The apparatus may also include a pump 15 for filling the cell with solution from the tank; the top level switch A of the tank start pumps 13, 15 for filling the cell and switches on the plating current, the top level switch B of the cell switches off the pump 15, the bottom level switch D of the tank switches off the pump 13 and plating current and switches on the pump 14 for emptying the cell, and the bottom level switch E of the cell switches off the pump 14. The cathode assembly preferably comprises a series of frustoconical discs 18 spaced e.g. by spacers 20 along a vertical shaft 19, each disc having drain hole 21 near the centre.
Patent GB-721862-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1952-12-03
Abstract: The invention comprises 3,11-dihydroxy-16-pregnen-20-one of the formula <PICT:0721862/IV (b)/1> and a process for the preparation thereof by brominating 3,11-dihydroxy-pregnan-20-one with bromine and dehydrobrominating the resulting 3,11-dihydroxy-17-bromo-pregnan-20-one by heating with an amine.  The configuration of the hydroxy groups may be alpha or beta at each of the 3- and 11-positions.  The bromine may be dissolved in an inert organic solvent and employed in the ratio of about 1.0 to 1.3 mols. of bromine per mol. of steroid reactant. The bromination step may be carried out at a temperature between about 20 DEG  and 30 DEG  C., and the dehydrobromination at between about 80 DEG  and 180 DEG  C. The amine may be pyridine, quinoline, methyl benzylamine, aniline or collidine.  In the example 3-alpha, 11-alpha-, 3-alpha, 11-beta-, and 3 - beta, 11 - beta - dihydroxy - 16 - pregnen - 20-one are prepared. 3 - alpha - 17 - alpha - Dihydroxypregnane - 11,20-dione is prepared by treating 3,11-dihydroxy - 16 - pregnen - 20 - one with a peracid, such as perbenzoic acid, to form a 16(17)-epoxide which is converted into a 16-bromo-17-alpha-hydroxy compound with hydrobromic acid, the bromine is then removed with zinc dust to form a 3,11,17-alpha-trihydroxypregnan-20-one, oxidation of this compound with chromic acid in acetic acid yields 17-alpha-hydroxypregnane-3,11,20-trione which on selective reduction with sodium borohydride yields 3-alpha-17-alpha-dihydroxypregnane-11,20-dione.
Patent GB-520057-A (GB)
Title: Improved method of marking rubber covered electrical conductors
IPC: H01B13/34
Filed: 1938-10-24
Abstract: 520,057. Electric conductors. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., BOWYER, J., and TAYLOR, J. Oct. 24, 1938, No. 30692., [Class 36] Rubber-covered electrical conductors are provided with a marking, such as the maker's name, or a mark of quality or identification, by printing the marking in parallel rows on a strip of unvulcanized rubber, applying the strip, together with a second strip which may be plain or printed, to the conductors by the longitudinal method of application, and vulcanizing the rubber. The, strips 5 and conductors 4 are passed between adjustable guides 8 to grooved rollers 1 which form the strips in portions about the conductors and join their edges. After leaving the rolls, the covered conductors are separated by passing alternate conductors over and under a bar 10.
Patent GB-351362-A (GB)
Title: Perpetual calendars for day by day alterations
IPC: G09D3/08
Filed: 1930-10-14
Abstract: 351,362. Calendars. LOCKETT, W. J., (trading as CASH & CLARE), 75, Gt. Eastern Street, London. Oct. 14, 1930, No. 30716. Addition to 309,804, [Class 106 (iv), Indicating &c.]. [Class 106 (iv).] The calendar as described in the parent Specification is modified by arranging the date numerals in a semicircular formation and by rotatably mounting the transparent or translucent sheet carrying the particular date marker. As shown in Figs. 1 and 2, the date numerals a are marked on the front face of the middle part m of a frame to which part is pivoted a transparent disc d the numerals and indicator e that is marked on the disc being viewable through an aperture b on the front c. Pockets formed at the rear of the partition m contain discs g, h, bearing the day names and month names viewable through apertures in the partition m and front plate c. Recesses formed in the top and side of the frame serve to expose the serrated edges of the discs to facilitate their adjustment.
Patent GB-1396730-A (GB)
Title: Detergent composition
IPC: C11D3/20
Filed: 1972-06-30
Abstract: 1396730 Oily stain removers PROCTER & GAMBLE Ltd 29 June 1973 [30 June 1972] 30720/72 Heading C5D A liquid or solid detergent composition comprises an anionic, nonionic, semi-polymer or zwitterionic surfactant, or a mixture thereof and an oily stain remover which is one or more esters of the formula R 1 COOR 2  wherein R 1  is C 6 -C 15  alkyl and R 2  is methyl or ethyl. Suitable esters are methyl heptanoate, methyl undecanoate, methyl or ethyl laurate, methyl tridecanoate, methyl myristate and methyl pentadecanoate. A solid granular detergent contains one or more inorganic and/or organic detergency builders and oxygen or chlorine releasing bleaching agents. A liquid detergent composition contains water, detergency builders, hydrotropes and water-miscible organic solvents. The compositions contain 1 to 15% of the esters which may be absorbed on a solid or may be encapsulated to produce free-flowing powders. Aqueous solutions containing 0À5 to 10% of the solid compositions are used as presoaks, prior to washing in the conventional manner. The liquids may be used neat as spot removers.
Patent GB-481624-A (GB)
Title: Improvements relating to shovels, scoops, spades and like hand tools
IPC: A01B1/02
Filed: 1936-11-11
Abstract: 481,624. Spades, shovels, or scoops. HUGHES, J. R., and SCOTTISH SPADE & SHOVEL WORKS, Ltd. Nov. 11, 1936, No. 30781. [Class 6 (ii)] A shovel or spade having a straight cutting edge B is provided with a strengthening member C consisting of a flat angular metal plate secured to the back of the shovel and having a corner K projecting beyond the edge B. As shown in Fig. 3, the shovel may have sloping sides B<1> which coincide with the edges of the member C which may be provided with a shank C2 to strengthen the centre portion of the shovel.
Patent GB-1262443-A (GB)
Title: Detonation-actuated tool for driving fasteners into difficulty-accessible locations
Inventor: MAIER ELMAR
IPC: B22D7/10
Filed: 1970-06-25
Abstract: 1,262,443. Cartridge-actuated fastener driving tools. HILTI A.G. 25 June, 1970 [18 July, 1969], No. 30782/70. Heading B4C. A cartridge-actuated fastener-driving tool for fixing hot top tiles to the inner wall of a chill or ingot mould comprises a support or extension 26 for remote operation of the tool and cartridge, a fastener driving piston 11 which is displaced along a barrel 5 upon detonation of a cartridge 12 in a cartridge chamber 5d, and a spring- loaded striker 16 arranged to transmit impact energy through 180 degrees to a firing pin 22 by means of a two-armed lever 23. In order to release the striker 16, and as a safety precaution, the barrel 5 has to be pressed against the action of a spring 6 to align a recess 5e in the barrel with the end 28b of a release bar 28 in order to permit depression of the release bar which is effected remotely by depressing the free end 28a. Depression of the release bar causes the withdrawal of a detent pin 18 from its engagement with a surface 16c on the striker 16, the withdrawal being effected by a conical surface on the release bar. The freed striker then moves under the action of a spring 15 to impact the lever 23 which-in turn pivots to strike the firing pin 22. After a fastener 9 has been driven in, the tool is moved away from the tile so that the barrel 5 and fastener guide 7 move back to the rest position at a stop 10 under the action of the spring 6. A handle 38 on the side of the tool is attached to a three-armed lever so that as the handle is swung rearwardly, one arm causes a stepwise movement of a cartridge magazine 13 by depressing a pawl 35a, another arm cocks the striker 16 by co-operating with a collar 16d and a further arm serves,to move the barrel 5, should this become jammed, by co-operating with a peg which projects from the barrel through a slot in the tool housing.
Patent GB-871669-A (GB)
Title: Transducing apparatus
IPC: G01R17/08
Filed: 1959-09-09
Abstract: 871,669. Electromagnets. FOXBORO CO. Sept. 9, 1959 [Sept. 15, 1958], No. 30842/59. Class 35. [Also in Group XXXVIII] In a device for producing, electromagnetically, a torque to balance that produced by a variable force to be measured, e.g. a force produced by the differential pressure across an orifice type flow-meter, the magnetic circuit is provided with two sets of air gaps, one producing the main balancing torque, the magnetic circuit including materials of low hysteresis and a second set of air gaps producing a small opposing torque, the magnetic circuit including materials having high hysteresis so that the resultant torque has negligible hysteresis. The development of the restoring torque on the armature is illustrated in Fig. 9, which shows the armature 62 which rocks about 66 surrounded by coil 88, the magnetic circuit being completed by parts 74 and 78. A steady magnetic flux indicated at 104, 106, 108 and 110 is maintained between parts 74 and 78 by permanent magnets 84 and 86, Fig. 6 (not shown). Flux due to current in coil 88 is indicated at 112, 114 and 116 and it can be seen that with flux in the direction indicated by the arrows the flux in the main gaps, i.e. between the armature and poles 72, 76, 80 and 82 will produce an anti-clockwise torque on armature 62 while flux in the auxiliary gaps 96 and 98 will produce a clockwise torque, this clockwise torque will be comparatively small with regard to the anti-clockwise torque but having comparatively high hysteresis since parts 92 and 94 of armature 62 are of ordinary steel having high hysteresis while the remaining parts of the magnetic circuit are of material having low hysteresis the net effect being that the hysteresis effects of the two torques will cancel. In an alternative form, Fig. 11 (not shown), the auxiliary poles of high hysteresis material are attached to the coil pole-pieces rather than the armature.
Patent GB-1211621-A (GB)
Title: Conversion of green tea
Inventor: GRAHAM HAROLD NATHANIEL
IPC: A23F3/16
Filed: 1968-06-28
Abstract: 1,211,621. Conversion of tea. UNILEVER Ltd. 28 June, 1968 [3 July, 1967], No. 30878/68 Heading A2B. Water soluble constituents of tea are converted by heating an aqueous solution of the constituents in the presence of ozone at a pH initially above 6.0, for example in the presence of KOH or NaOH, preferably at 50-120C. Tea leaves may be present. By the process the constituents of green tea may be converted to the constituents of partially fermented tea or black tea, or the constituents of partially fermented tea may be converted to the constituents of black tea. After the conversion, the pH may be adjusted to below 6.0, for example by the addition of acids, ion exchange resins, or by electrodialysis. The solution may be dried to a dry product.
Patent GB-999771-A (GB)
Title: Improvements in or relating to joint constructions between prestressed concrete slabs
IPC: E01C11/04
Filed: 1961-08-28
Abstract: 999,771. Expansion joints. E. LUBBERT, U. FINSTERWALDER, R. JECHT. E. RUF, and E. LUBBERT Jnr. Aug. 28, 1961 [Aug. 27, 1960], No. 30879/61. Heading E1V. An expansion joint between concrete slabs, in e.g. an airport runway, comprises longitudinally aligned pairs of upwardly open hollow members 2, 2<SP>1</SP> of T-form in plan spaced by a gap 6. Each hollow member has a rear wall 5 apertured to receive longitudinal tensioning rods 9 and a front wall 3 with a flange 4 recessed to receive a cover plate 7 which is screwed at 8 to one flange and slides freely on the other. To assemble the joint members the rods 9 are passed through the apertures in the walls 5, pairs of members are aligned and temporarily connected and adjacent pairs are secured together by members 10 welded thereto. Each member has anchoring rods 11 welded to its underside and is located above a transverse tensioning rod 12. The concrete is then poured and allowed to harden before the rods 9 are tensioned. The members 2, 2<SP>1</SP> may be filled with cement &c. and covered by a steel plate (not shown).
Patent GB-1013303-A (GB)
Title: Smoking article and method and apparatus for producing same
IPC: A24D1/00
Filed: 1962-08-13
Abstract: 1,013,303. Moulding tobacco particles. AMERICAN MACHINE & FOUNDRY CO. Aug. 13, 1962 [Aug. 11, 1961], No. 30940/62. Heading B5A. [Also in Division A2] In manufacturing tobacco casts suitable for use in a pipe, cigar or cigarette, a foaming agent, which may be an adhesive, is whipped into a foam and tobacco particles, e.g. shreds followed by dust, folded into it to form a slurry which is extruded, cast or otherwise shaped and then dried to a preselected moisture content, e.g. from 5 to 40% to form a stable, relatively porous mass which may be dip-coated or wrapped in paper or tobacco leaf. If desired a foam stabilizing agent may be added to the slurry and re-foaming effected before shaping; alternatively a blowing agent, e.g. baking powder, may be added. Suitable foaming agents are natural or synthetic hydrophilic gums, e.g. glycogen, partially deacetylated chitin, cellulose ethers or esters, starches or starch ethers or esters, amylose, amylopectin, locust bean gum, guar gum, gum arabic, algino, carageenans, laminarins, agar, dextrans, phosphomannans, glucoronic acid containing gums, hydrolysed keratins, egg albumin, gluten, zein, soy, cottonseed and torula yeast proteins, polyvinyl alcohol, polyoxyethylene, polyacrylamide. As foam stabilizing agents salts of sulphate esters of the alkylphenoxypolyoxyethylene ethanol and salts of sulphate compounds of the type N-methyl-N-oleoyl taurine, sorbitan esters, ethylene oxide-sorbital condensation products, lecithin and its derivatives, may be used. The foam may also incorporate casein, humectants, ash and burn additives, e.g. titanium dioxide, diatomaceous earth, nitrate salts, biocides, flavouring agents, and the slurry made with water or a mixture of water and organic liquids and dried by rapid micro-wave heating or relatively slower oven drying. The cast product may be provided with a relatively non-porous covering by being dipped in a liquid composition comprising amylose acetate or cellulose triacetate, ball-milled tobacco, chloroform and methylene chloride. Apparatus for shaping the slurry comprises a feed hopper 5 from which the slurry is metered by a reciprocating plunger 25 into moulds 15 on an endless sprocket chain 7 which are then closed by upper mating mould portions 14 on a further chain 6. Drying is effected in an oven 16 and removal of the dried shaped cores 31 from the moulds 15 by pneumatic pressure supplied through a line 34 to a U-shaped housing 32 through which the moulds pass. The empty moulds are then brushed and sprayed with release agent before re-use. In a further form of apparatus (Fig. 4, not shown) the foamed slurry is extruded on to a moving conveyer belt through a variable iris-type orifice to form cigar shapes interconnected by narrow strips which are subsequently severed after drying to produce individual pieces which are wrapped in tobacco leaf or reconstituted tobacco web to form cigars.
Patent GB-179879-A (GB)
Title: Improvements in plugs for use in tobacco pipes
IPC: A24F5/06
Filed: 1921-11-19
Abstract: 179,879. James, J. M. Nov. 19, 1921. Tobacco pipes.-A porcelain, steatite, glass, stone, or non- metallic plug A is formed with perforations C or notches or grooves in the edge, a central projection D adapted to rest on the bottom of the bowl, and a screw-threaded hole B into which a screwed rod is inserted for the removal of the plug.
Patent GB-796805-A (GB)
Title: Improvements in or relating to the production of alloys in mercury
IPC: C22C7/00
Filed: 1956-10-11
Abstract: Alloys are made by forming amalgams of the desired constituents, mixing them together and heating the mixture to a temperature equal to, or higher than, the temperature of dissociation of the most thermally stable amalgam.  Binary, ternary or higher amalgams may be used, specifically the following binary ones (balance Hg.) Fe 5.2; Ni 4.5; Cr 4.4; Mn 5.3; Cu 14.4; and an unspecified percentage of Bi. The following alloys are disclosed: Cu 50, Ni 50; Mg 32, Cu balance; Cr 18, Ni 8, Fe balance; Ni 80, Cr 20; Ni 46.3, Fe balance.  The excess mercury is pressed or centrifuged out of the mixed amalgams and the mercury remaining after the alloy is formed is distilled off.
Patent GB-1005548-A (GB)
Title: Frequency control of oscillators
IPC: H03L1/02
Filed: 1963-08-06
Abstract: 1,005,548. Frequency modulation; semiconductor reactance circuits; transistor oscillator circuits. BENDIX CORPORATION. Aug. 6, 1963 [Aug. 6, 1962], No. 31032/63. Headings H3R and H3T. A transistor Colpitts oscillator has, between the collector and base, a piezo crystal 16 and inductor 17 shunted by frequency determining capacitors 19, 30, and voltage variations on the base, as by a pressure sensitive transducer varying a voltage divider bias network 24, 25, 26 across the base, produces variations of the collector/base capacitance 15A to frequency modulate the oscillator. Fruther, the frequency determining circuit is shunted through capacitor 10 by a second transistor 35 (emitter follower) with input (Miller) reactance varied by a voltage divider bias network 44-49 for the base which includes thermistors 45, 49 compensating the mean frequency of the oscillator for temperature variations. The emitter follower also acts as an isolator and power amplifier for the output. Specification 967,705 is referred to.