baber/WOPTO huggingface dataset:
Patent GB-1462736-A (GB)
Title: Anaerobic waste treatment process employing recycle of  purified effluent
IPC: C07C27/26
Filed: 1975-05-07
Abstract: 1462736 Recycling anaerobic process CELANESE CORP 7 May 1975 [9 May 1974] 19176/75 Heading C1C A process for the anaerobic biological treatment of waste water containing organic pollutants which are of such a nature as to be amenable to anaerobic digestion, comprises passing the waste water through an anaerobic digestor or filter containing a biomass consisting essentially of micro-organisms capable of digesting said pollutants while converting the waste water to a purified effluent having a reduced content of said pollutants, wherein a portion of the effluent is recycled to the inlet of the anaerobic digestor filter, and admixed into the waste water entering the digestor filter, in such an amount that the content of the pollutants and any biostatic or biocidal species which are present in the resulting mixture of recycled effluent and waste water is below that level above which there results inhibition of the growth processes of the microorganisms. This may also eliminate or reduce the need for employing additional alkaline reagents to adjust the pH of the waste water prior to treatment, in as much as the effluent commonly contains alkaline bicarbonates (produced in the treatment process) which may not be contained initially in the waste water. Sewage, and in particular industrial wastes containing organic pollutants, such as acetic, formic and acrylic acids, acetaldehyde and acrylate esters from a petro-chemical plant waste water, may be treated.
Patent GB-247241-A (GB)
Title: Improvements in the manufacture and use of active carbons
IPC: C13B20/12
Filed: 1924-08-13
Abstract: 247,241. Sauer, J. N. A. Aug. 13, 1924. Purifying liquids.-Particles of active carbon are coated or impregnated with a supplementary active carbon or an inorganic adsorbent material. The latter may act as binders, when hard agglomerates may be obtained with or without the use of pressure. The supplementary active carbon is produced by impregnating the base of active carbon with a carbonizable solution, carbonizing and finally activating by means of gas or other known chemical activating agents, while the supplementary inorganic adsorbent is produced by precipitation in situ within the pores of the active carbon base, followed by careful drying and heating. To prevent loss of absorbing power of the active carbon base, substances producing gases may be added; for example, prior to impregnation the base may be treated with benzol or other volatile liquid, or yeast or ammonium carbonate may be added. In an example an active carbon of low apparent specific gravity is treated with water-glass and hydrochloric acid is added so as to produce progressive gelatinization of silicic acid. On carefully drying and heating a hard product of increased specific gravity is obtained. In a second example an active carbon is mixed with sulphite-cellulose lye and lime or calcium carbonate and the mass carbonized and subsequently activated. Before carbonization the mass may be moulded and subjected to pressure whereby hard tablets, rods, granules &c. may be produced. Silica gel resulting from the hydrolysis of silicon chloride, oxides of aluminium and iron, insoluble or sparingly soluble salts of calcium, oxalates, phosphates, citrates and aluminates are mentioned as other suitable supplementary adsorbents when prepared under conditions producing a highly adsorbent product. Different inorganic adsorbents may be applied successively or simultaneously and the active carbon base and the supplementary adsorbent may possess complementary powers. The composite product is suitable for the treatment of liquids including the removal of colouring matter and other impurities. It may be regenerated by igniting or by treatment with steam or dry air. Specifications 213,939 and 213,940, [both in Class 90, Non-metallic elements], are referred to.
Patent GB-295814-A (GB)
Title: Improvements in or relating to dressing tables
IPC: A47B67/00
Filed: 1927-07-20
Abstract: 295,814. Taylor, R. H. July 20, 1927. Dressing and toilet tables. - A dressing-table has two end sections on each of which is mounted, in such a way as not to project beyond the sides of the table, a mirror adapted for rotation on a vertical axis. Fig. 1 shows a dressing- table consisting of two circular end sections 7 and a central arc-form section 7a shaped so that a person may stand or set between the sections 7. On these are mirrors 9, 9<a>, 9<b>, the mirrors 9<a>, 9<b> being mounted on turntables 11. The mirror 9 may be omitted.
Patent GB-363968-A (GB)
Title: Sharpening and stropping apparatus for razor blades
IPC: B24D15/08
Filed: 1931-07-03
Abstract: 363,968. Sharpening razors. GOTTLIEB, M., 25, Testarellogasse, and RETTER, S., 7, Pierrongasse, both in Vienna. July 3, 1931, No. 19220. Convention date, July 4, 1930. [Class 60.] A device for sharpening or stropping double edged razor blades consists of a case 10 containing a stropping &c. member 11 and having guide grooves 9 for a, slidable frame 8, in which are pivoted trunnion-like extremities of a blade-holder 6, one of the extremities carrying a leaf spring 7 projecting on each side. As the frame is reciprocated, the spring engages under a flange 12 on the case, passing clear of the flange at position C, Fig. 2, so that the blade 5 is turned to treat the other edge. At the other end of the case, the blade is turned, by the action of the spring, so that on the reverse stroke the other face of the edge being sharpened contacts with the member 11.
Patent GB-646434-A (GB)
Title: New or improved solid detergent masses
IPC: C11D3/22
Filed: 1947-07-18
Abstract: An aqueous gelatinous detergent composition comprises a water-soluble cellulose ether, a solid filler, and a water-soluble detergent compound (other than a salt of a fatty acid) which is capable of precipitating the cellulose ether in gelatinous form from aqueous solution.  The cellulose ether may be a methyl, methyl-ethyl or hydroxyethyl cellulose or a water-soluble alkali-metal salt of carboxymethyl cellulose, and may be used in association with sodium chloride or other sodium salts frequently present in the crude ethers.  The water-soluble detergent compound may be an anionic surface-active compound, e.g. an alkali-metal salt of a sulphated or sulphonated aliphatic alcohol, or a non-ionic detergent compound, e.g. a condensation product of ethylene oxide and an alkylphenol; cationic surface-active agents may also be used, but not in association with salts of carboxymethyl cellulose.  The filler may be kieselguhr, precipitated chalk, steatite, china clay, magnesium carbonate, wood flour, pumice, bentonite or fuller's earth.  The compositions may also contain soap as an additional ingredient, with or without effect materials such as lanoline, petroleum jelly, perfumes or dyestuffs.  The products may be shaped under pressure to form bars, rods, cakes, tablets and like products.  In the examples: (1) crude sodium carboxymethyl cellulose containing sodium chloride is mixed with an aqueous solution of an ethylene oxide-octylphenol condensation product, and precipitated chalk is worked into the jelly so obtained; (2) the condensation product of example (1) is replaced by the product sold under the Registered Trade Mark "Teepol," and magnesium carbonate and lanoline are worked into the jelly; (3) a methyl-ethyl cellulose is mixed with a solution of "Teepol," and precipitated chalk and pine oil are worked into the jelly; (4) a methyl-ethyl cellulose is mixed with a solution of trimethylammonium bromide, and precipitated chalk is worked into the jelly. Specifications 541,620 and 588,653 are referred to.  Reference has been directed by the Comptroller to Specification 645,752.
Patent GB-787247-A (GB)
Title: Improvements relating to plant for circulating and heating liquid
Inventor: PECK WILLIAM CHARLES
IPC: F24D3/02
Filed: 1954-07-01
Abstract: 787,247. Heating by circulation of liquids. APEX CONSTRUCTION, Ltd., and PECK, W. C. July 1, 1955 [July 1, 1954], No. 19344/54. Class 64(2) In a system for circulating hot liquid to apparatus, such as a tray drier or a still operating under vacuum, a pump 4 passes the liquid into a main heater compartment 2 containing a steam coil 3, the compartment having no direct communication with a make-up tank 1 in which it is contained. The heated liquid passed from compartment 2 to the apparatus through a pipe 6 which contains a device for controlling the temperature of the circulated liquid. A conduit 8 communicates between the tank 1 and the return pipe 7 from the apparatus. A branch conduit 9 with a cock 10 extends from the pipe 7 to the top of the tank 1 so that, when the plant is started up, any air from the apparatus to be heated that may be carried out by the circulating liquid will be by-passed to the top of the make-up tank. All the parts, except the pipes 6, 7, may be mounted on a common base plate 11.
Patent GB-221324-A (GB)
Title: A hanger for supporting garments and the like when drying
IPC: D06F57/12
Filed: 1923-07-30
Abstract: 221,324. O'Neill, B. July 30, 1923. Coat and like hangers.-A hanger for supporting clothes during drying comprises a strip A and arms B connected by members C which are pivoted in slots in the ends of the strip and the arms. In use, the garments are placed on the strip and the arms are folded so as to clamp the garments to the strip and are held in position by rubber bands E. The hanger is suspended by S-shaped hooks attached to the arms. According to the Provisional Specification, a single arm connected at one end to the strip may be substituted for the separate arms.
Patent GB-713387-A (GB)
Title: Electric signal transmission circuits employing transistors
IPC: H03F3/62
Filed: 1952-08-01
Abstract: 713,387. Transistor amplifying circuits. WESTERN ELECTRIC CO., Inc. Aug. 1, 1952 [Aug. 2, 1951 ; Aug. 2, 1951], No. 19526/52. Class 40 (6) An amplifier circuit comprises two transistors of the kind described in Specification 694,021, one electrode of one transistor being connected to an electrode of the other transistor and the remaining electrodes providing two pairs of external circuit connections, one pair of which comprises two dissimilar electrodes from the two transistors while the other pair comprises the two remaining electrodes, the arrangement being such and the circuit parameters being so chosen that the circuit is capable of transmitting signals in either direction between the pairs of external circuit connections. The electrodes which are connected together may be of similar type in which case both pairs of external circuit connections comprise two dissimilar electrodes. Alternatively the electrodes which are connected together may be of dissimilar type in which case at least one pair of external circuit connections comprises a pair of dissimilar electrodes. In certain embodiments the circuit necessarily gives equal gain in both directions, providing that the two transistors have identical parameters in other embodiments equality of the gain in both directions may be achieved by suitable selection of the transistor constants, in particular the current amplification factor. Fig. 10 shows a circuit having similar electrodes (i.e. collectors) connected together and to the negative terminal of a battery 33 providing the D.C. supply. The small positive bias required for the emitters is obtained by means of the resistors 43. Choke coils 44 are provided to prevent the supply connections from short-circuiting the signalling currents. Fig. 12 shows a circuit wherein dissimilar electrodes (i.e. the base electrode of the upper transistor and the emitter of the lower transistor) are connected together through a condenser 36 providing a low impedance to signalling currents. Emitter bias is provided by resistors 48 and choke 46 prevents short circuiting of the signalling currents. The battery supply for certain of the embodiments may be fed from a distance over the signalling circuits, Fig. 12 illustrating such an embodiment, which would consequently be of particular use at an unattended repeater station. The circuit shown in Fig. 10, however, must be fed locally or, if it is desired to feed the circuit from a distance, a further pair of battery supply conductors must be provided. Figs. 5, 6 and 7 show arrangements not falling within the scope of the invention wherein similar electrodes are connected together and similar electrodes are grouped in pairs to provide the external circuit connections. Fig. 5 shows the arrangement wherein the base electrodes are connected together while Figs. 6 and 7 (not shown) illustrate arrangements having the emitters and collectors connected together respectively. In each of these arrangements a local battery supply is necessary.
Patent GB-759499-A (GB)
Title: Improvements in or relating to automatic voltage regulators
IPC: H02J7/22
Filed: 1953-07-14
Abstract: 759,499. Automatic voltage control systems. MENZEL, F. July 14, 1953, No. 19587/53. Class 38 (4). In an automatic voltage control system for a shunt wound D.C. generator having a vibrating contact regulator of the type operative to either include a resistance in series with the field or to short circuit the field, a second vibrating contact regulator is effective above a predetermined load current to increase the excitation of the voltage regulator coil and so reduce the output voltage of the generator. The generator A supplies the load via a cut-out C and a current-sensitive relay B, the contacts of which are normally closed so that the lower half of the tapped coil on the voltage regulator D is connected (in series with the voltage, coil of the cut-out C) across the output terminals of the generator to control the output voltage in conventional manner. If the load current increases above a desired value, the current coil 41 on the relay B opens the relay contacts thereby connecting a voltage coil 52 on the relay, the voltage coil of the cut-out and the entire voltage coil of the regulator D across the generator terminals. The two parts of the regulator winding D are so proportioned that under these latter conditions the regulator reduces the output voltage of the generator. The winding 52 on relay B opposes the current coil 41 and so causes the relay contacts to be operated intermittently. In a modification, Fig. 3 (not shown) the entire coil of the voltage regulator is normally connected across the generator output and on overload the current relay closes its contacts to connect the relay voltage coil between a tapping on the regulator coil and the negative pole of the system.
Patent GB-715625-A (GB)
Title: Improvements in or relating to the control mechanism of multi-colour sheet-fed printing machines having a plurality of printing units
IPC: B41F33/08
Filed: 1951-08-21
Abstract: 715,625. Printing-machines. FABER & SCHLEICHER AKT.-GES. Aug. 21, 1951 [Aug. 22, 1950], No. 19648/51. Class 100 (2) Tripping-apparatus in a multi-unit sheet-fed multi-colour printing machine, whereby each unit is tripped with a time lag appropriate to the handling of a sheet printed in the preceding unit, comprises a rotary control member interconnecting the tripping mechanism of each unit to that of the adjacent unit; the control member has a series of actuating members slidable into and out of an operative position by means operated by tripping of the earlier unit, and when in the course of rotation of the control member the actuating members reach a station positioned to give the required time lag, they trip the later unit. In a two-unit four-colour machine wherein each unit has two offset cylinders coacting with a single impression cylinder such as 28 and the sheets are conveyed by a chain 31 from a delivery drum 30 and (in the case of the second unit) to a feed drum 37, the eccentric bearings of the offset cylinders of the second unit are connected to a lever 17 linked at 16 to an arm 33 of a bellcrank lever whose other arm 14 is operated, against a spring 15, by the heads (e.g. rollers) 13 of axially movable bolts 9 mounted at spaced intervals in a chain running over two sprockets, or as shown in a drum 8 geared to rotate once as a sheet travels between corresponding points in the two printing units. At a distance before the bolts 9 reach the arm 14, to give the required time lag, the bolt heads 13 are moved into or out of line therewith by guide arms 5b, 5a engaging the heads of bolts 7 fixed in the bolts 9, and are held by spring catches 12 engaging grooves 11, 10; the arms 5b, 5a form part of a lever 5 rotatable on a shaft 34 against a spring 35 by a magnet 4 energized or de-energized according as the first unit is tripped on or off.
Patent GB-364087-A (GB)
Title: Improvements in the manufacture and production of vat dyestuffs
IPC: C09B3/32
Filed: 1930-06-28
Abstract: Chlordibenzanthrones dyeing navy-blue to dark blue shades fast to spotting with water are prepared by treating a nitrodibenzanthrone with chlorine or agents supplying chlorine in the absence of any diluent or in the presence of an organic diluent other than phthalic anhydride or a halogenated derivative thereof, until the nitrogen content is reduced to at the most 0,5 per cent.  If by such halogenation the products have a higher nitrogen content than 0,5 per cent, those parts having a nitrogen content of less than 0,5 per cent may be separated out by known methods, for example by recrystallization from organic solvents, or by way of the oxonium sulphates.  Purification of crude products may also be effected by these means, or by vatting, or treatment with oxidizing agents. Suitable solvents are chlorbenzene, trichlorbenzene, and nitrobenzene, and chlorinating agents include sulphuryl chloride, benzotrichloride, and benzoyl chloride or mixtures of these.  One or more halogen transferrers may be present.  Reacting conditions depend on the nature of the starting-material; thus a very pure product in a glassy state is difficulty soluble, and stronger reacting conditions are necessary.  The preparation of the nitro derivative and the chlorination can be effected in one operation.  The chlorine content of highly chlorinated products may be diminished by the action of reducing agents according to the process of Specification 346,676. In Examples (1) nitrodibenzanthrone (Example 2 of Specification 1818/05, [Class 2, Acids and salts, Organic &c.]) is chlorinated in trichlorbenzene or nitrobenzene (with antimony, iodine or other catalyst present, if desired) until the product is practically free from nitrogen; similar products are obtained from other nitrodibenzanthrones, for example the pure mononitro derivative obtainable according to Specification 220,212, [Class 2 (iii), Dyes, &c.]: (2) the product obtained by nitrating pure dibenzanthrone is boiled with benzoyl chloride; trichlorbenzene is then added and with further boiling a stream of chlorine passed through until the product is practically free from nitrogen; the benzoyl chloride may be replaced by benzotrichloride and chlorine by sulphuryl chloride; alternatively dibenzanthrone may be nitrated in nitrobenzene and a treatment with chlorine follow immediately: (3) nitrodibenzanthrone (prepared by nitration in chloracetic acid) is chlorinated in trichlorbenzene.  The product is dissolved in monohydrate and a little water added; the oxonium sulphate separating is removed and decomposed with water to give a product containing only traces of nitrogen.  Specifications 22519/05, [Class 2, Acids and salts, Organic &c.], and 12817/13, [Class 2 (iii), Dyes &c.], also are referred to.  The Provisional Specification refers to the use of organic diluents generally in the process.
Patent GB-1351238-A (GB)
Title: Clathrate prostaglandins and compositions containing same
IPC: C08B37/00
Filed: 1971-06-09
Abstract: 1351238 Prostaglandins ONO PHARMACEUTICAL CO Ltd 9 June 1971 [10 June 1970] 19785/71 Heading C2C [Also in Division C3] Novel cyclodextrin clathrates of proataglandins or derivatives thereof are prepared by reacting the appropriate prostaglandins or derivatives thereof with cyclodextrin. Pharmaceutical compositions, for oral, parenteral or vaginal administration, contain the above novel clathrates and suitable carriers. The clathrates have similar activities to the corresponding free prostaglandins.
Patent GB-216397-A (GB)
Title: Cushioned implement handle and insert thimble therefor
IPC: B25G3/02
Filed: 1923-08-02
Abstract: 216,397. Isham, H. S., and Mayer, J. Aug. 2, 1923. Resilient handles; fixing by detachable selfgrip sockets of special form.-A cushioned handle for hammers, axes, and other eyed implements, comprises an eye having a median contraction and a handle of similar form but of smaller diameter with a compressed elastic thimble or cushion filling the spaca between them. Fig. 1 shows a hammer head 1, and handle 2 having the rubber cushion 3, which is provided with a flange 3<a> on its inner end to prevent this end from being forced into the eye when the end of the handle is forced into it. To assist the insertion of the end of the handle into the rubber thimble when placed in the eye, a lubricant such as rubber solution may be applied to the inner surface of the cushion or to the end of the handle. A suitable form of rubber thimble is shown in section in Fig. 4. For heavy tools or implements the thimble may be formed with thickened portions a, b, b<1> at the end or ends, as shown in Figs. 5 to 8.
Patent GB-531000-A (GB)
Title: Educational appliance for teaching arithmetic
IPC: G09B19/02
Filed: 1939-07-07
Abstract: 531,000. Educational appliances. SCHLEGEL, R. July 7, 1939, No. 19892. Convention date, July 9, 1938. Addition to 499,015. Drawings to Specification. [Class 146 (ii)] The device according to the parent Specification is modified by the substitution for the movable band of a disc which is supported on a rotatable table. The numbers on the discs are arranged in two circumferential rows arranged to appear in separate apertures placed side by side or one above the other at diametrically opposite parts of the cover. With the same velocity of rotation, different problems can be set simultaneously. Tablets of material adapted to be written on may be inserted in the guides adjacent the apertures in the cover.
Patent GB-261071-A (GB)
Title: Improvements in turbines
IPC: F02C5/06
Filed: 1925-08-08
Abstract: 261,071. Snow, C. S. H., and Servais, F. J. J. Aug. 8, 1925. Force-feed lubricating.- In a combustion-product turbine, the fuel mixture is compressed and exploded in the stator a which has one or more cylinders a<2> each with a sleeve valve e actuated by a roller e<1> engaging a cam c1 on the rotor shaft c. The cylinder head g carries a sparking-plug and has a combustion space g<10>. The space l above the sleeve valve e is used for lubricant pumped by the sleeve from pipe l<2> and sump l' and distributed to the bearings.
Patent GB-1254345-A (GB)
Title: Alkali-soluble colour couplers
Inventor: ANDERSON BRIAN
IPC: C07D231/52
Filed: 1969-04-18
Abstract: 1,254,345. Phthalimido colour couplers. ILFORD Ltd. 10 April, 1970 [18 April, 1969], No. 20003/69. Heading C2C. [Also in Division G2] Novel colour couplers having the formulµ in which B represents (i) a pyrazolone grouping of the formula in which A is a phenyl group optionally substituted by Cl, CN or NO 2  and n is 0 or 1, (ii) a group of the formula having a free valency on one of the benzene rings either of which may be substituted by alkyl or alkoxy groups, (iii) a phenolic group of the formula optionally substituted by halogen or alkyl, or (iv) a naphthol group of the formula in which W is a C 1-6  alkylene radical or a group and Y is hydrogen or Cl, Q represents a group of the formulµ R 1  is an alkyl group of at least 12 carbon atoms and X is a direct link or oxygen, are prepared by condensing an amine BNH 2  with the anhydride corresponding to the imide value of Q, or, when B is linked to an amide group in Q, with the corresponding acid chloride. Some of the imide colour couples are obtained as salts of the amic form. Many compounds are specified. 4 - (3 - Dodecylphenylaminocarbonyl)phthalide anhydride is obtained by condensing m-dodecylaniline with trimellitic anhydride acid chloride.