baber/WOPTO huggingface dataset:
Patent GB-618434-A (GB)
Title: Variable delivery multiple cylinder pump apparatus, applicable particularly to central lubrication
IPC: F16N13/04
Filed: 1946-04-01
Abstract: 618,434. Reciprocating pumps. TECALEMIT, Ltd. April 1, 1946, No. 10099. Convention date, Aug. 10, 1944. [Class 102 (i)] A reciprocating pump comprises a piston 8 controlling the suction port 39 and a counter piston 23 controlling the delivery port 26, the counter piston being driven from a part of the pump-actuating mechanism during a part of the suction stroke of the piston 8 and its movement limited by an adjustable stop. In Fig. 3 the pumps are arranged radially and each deliver to a point to be lubricated. A cam 3 is driven by two oneway drives 13, 14 and a roller 5 in a guide member 7a engages the cam groove 4. The pump piston 8 is connected by teeth 24 to the member 7a and the counter piston is connected by teeth 22 to a sleeve 21 surrounding a further sleeve 20 on an extension 7b of the member 7a. The upward movement of the counter piston 23 is limited by a stop 23a and when the extension 7b is moved downwards a ball 36 engages an inclined surface on the sleeve 20 and moves the counter piston until the sleeve 20 engages an adjustable stop 31 which determines the amount of liquid trapped between the pistons. Fig. 6 shows an arrangement wherein the pumps are arranged in pairs in a section of casing, the sections being bolted together between end covers. The pump pistons 8 of each pair are actuated by a rocker lever 44 driven by an eccentric 42. The counter pistons 23 are connected to a guide rod 49 actuated by the rocker arm 51. The rocker arm 51 is driven by a friction clutch from the rocker arm 44 and movements of the counter pistons are limited by the adjustable stops 54.
Patent GB-250967-A (GB)
Title: Improvements in apparatus for delivering liquids in measured quantities by volume
IPC: B67D7/16
Filed: 1926-04-17
Abstract: 250,967. Moos, G. April 20, 1925, [Convention date]. Fixed - chamber apparatus. - In a twochamber type of apparatus, the overflow outlet h is controlled by a valve f operated alternately by floats d, e and levers b, c pivoted at a in the tube g connecting the chambers A, B. The floats may be adapted to indicate when the chambers are full.
Patent GB-1062262-A (GB)
Title: Aromatic ether compound and its preparation
IPC: C07C43/263
Filed: 1963-03-14
Abstract: 3-(3-Phenoxyphenoxy) diphenyl (see Division C2) is used as a lubricant or heat exchange fluid.ALSO:The invention relates to 3-(3-phenoxy-phenoxy) diphenyl which may be prepared by reacting a 3-haloaniline, e.g. chloro- or bromoaniline, with an alkali metal phenate, e.g. sodium or potassium phenate, in the presence of copper or copper bronze at temperatures up to 300 DEG  C., e.g. in the range of 180-300 DEG  C., to produce 3-phenoxy aniline, diazotizing the latter compound and replacing the diazonium halide group by a hydroxide group by any of the well-known methods, e.g. treating with boiling sulphuric acid, converting the 3-hydroxydiphenyl ethers so produced to an alkali metal salt thereof, e.g. sodium or potassium salt, and reacting the salt with 3-halodiphenyl, e.g. 3-chloro- or 3-bromo-diphenyl, in the presence of copper or copper bronze at temperatures up to 300 DEG  C., e.g. in the range 180-300 DEG  C. The 3-halodiphenyl may be prepared by reacting a 3-haloaniline, e.g. chloro- or bromoaniline, with an alkali metal phenate, e.g. sodium or potassium phenate, in the presence of copper or copper bronze at temperatures up to 300 DEG  C., e.g. in the range of 180-300 DEG  C., to produce 3-phenoxy aniline, diazotizing the latter compound and replacing the diazonium halide group by a hydroxide group by any of the well-known methods, e.g. treating with boiling sulphuric acid, converting the 3hydroxydiphenyl ethers so produced to an alkali metal salt thereof, e.g. sodium or potassium salt, and reacting the salt with 3-halodiphenyl, e.g. 3-chloro- or 3-bromo-diphenyl, in the presence of copper or copper bronze at temperatures up to 300 DEG C., e.g. in the range 180-300 DEG  C.  The 3-halodiphenyl may be prepared by diazotizing 3-aminodiphenyl by subjecting the dizonium salt so produced to a Sandmeyer reaction or by diazotizing a 3-haloaniline and reacting the diazonium salt so produced with benzene and an alkali metal fatty acid salt, e.g. sodium acetate.
Patent GB-631267-A (GB)
Title: Improvements in or relating to the mounting of spare wheels in vehicles
IPC: B62D43/10
Filed: 1947-04-16
Abstract: 631,267. Vehicle luggage and spare wheel carriers. TATRA NARODNI PODNIK. April 16, 1947, No. 10128. Convention date, April 1, 1946. [Class 103 (ii)] The forward luggage compartment 6 of a rear-engined vehicle is provided with a hinged lid 2 and a separate tray 7 removably supported at 8 and arranged to support the spare wheels 12. Tool compartments 13 may also be provided in the tray beneath which is housed a battery 5 and luggage (not shown).
Patent GB-600247-A (GB)
Title: Improvements in coupling devices for projection tubes used in television
IPC: H04N5/74
Filed: 1944-05-25
Abstract: 600,247. Television. COMPANIA PARA LA FABRICACION DE CONTARDORES Y MATERIAL INDUSTRIAL SOC. ANON., and VITEAU, P. May 25, 1944, No. 10160. [Class 40 (iii)] In a television receiver employing a cathoderay tube to reproduce an image for direct projection on to a screen and in which large potentials are applied to the tube, the use of a large condenser for applying the television signals to the control electrode is avoided by applying the signals, modulated on a very short carrier wave-1 metre or less-to the control electrode through a coupling arrangement which passes high-frequency current and arrests the direct current components, means being provided for separating the modulating and carrier frequencies. The separation may be effected directly by the cathode-ray tube, or by the use of suitable valves, e.g. diodes. As shown in Fig. 1, the modulated output from the valves 1, 2 of a H.F. oscillator is applied to conductors A, A' of the tube through an inductive coupling comprising rods 4, 5 located in an insulating tank 3. The length of the connection between the valves 1, 2 and the position midway between the rods 4, 5 is an odd number of quarter-wavelengths of the carrier frequency. In a modification, Fig. 2 (not shown), employing a capacity coupling, the distance between the valves and a position disposed centrally with respect to the coupling condensers is an, even number of quarterwavelengths.
Patent GB-180834-A (GB)
Title: Improvements in or relating to collars for personal wear
IPC: A41B3/12
Filed: 1921-04-06
Abstract: 180,834. Roe, W. A. April 6, 1921. Collars, linen and like; neck-ties. - A neck - tie antifriction device for use with collars comprises a band 8 with loops 3 carrying rollers 5 or the like. The band may have a buttonhole 9 for attachment to the collar. The loops may be made detachable from the collar or band when the collar or band is required for washing.
Patent GB-181537-A (GB)
Title: Improvements in and relating to spring wheels
IPC: B60C7/18
Filed: 1921-04-06
Abstract: 181,537. Bentley, F. April 6, 1921. Spring wheels comprise a rim 12 spaced from a felloe 11 by helical springs 16. The springs 16 are held in recesses in the rim and felloe and a cap 18 is provided for access to them. The springs are protected from dust &c. by annular members 17 of rubber or the like secured in recesses in the rim and felloe by screws 21. A solid tyre 14 is provided.
Patent GB-1466321-A (GB)
Title: Coloured mineral granular material
IPC: C04B14/02
Filed: 1974-03-07
Abstract: 1466321 Coloured, coated granular minerals HOECHST AG 7 March 1974 [28 March 1973] 10224/74 Heading B2E Granular mineral material, e.g. quartz sand, quartz chippings, marble chips, calcites, whiting, dolomite chippings or gypsum chippings, which has an average means particle size of 0.2 to 10 mm and in a filler in variegated stone plaster or mortar is coated at 0‹C to 100‹C with a dyestuff or pigment and with a dried polymer film applied from an aqueous dispersion of a homo- or copolymer of an ethylenically unsaturated monomer comprising a vinyl ester, an acrylic or methacrylic acid ester, a vinyl aromatic hydrocarbon, ethylene, an alpha olefine, a vinyl or vinylidene halide or acrylonitrile. The mineral granules may be immersed  in an aqueous solution or suspension of a dyestuff or pigment, followed by immersion in a solution or suspension of polymer. Alternatively, a single mixed suspension or solution of dyestuff or pigment and polymer may be used. The ratio of mineral material to impregnation liquid may be 1:1 to 10:1. Preferably the process is carried out at room temperature.
Patent GB-1100565-A (GB)
Title: Xerographic printing material and method of use
IPC: G03G5/087
Filed: 1965-03-10
Abstract: 1,100,565. Xerographic element. RESEARCH LABORATORIES OF AUSTRALIA PTY. Ltd. 10 March, 1965 [11 March, 1964], No. 10268/65. Heading H1K. [Also in Division G2] A xerographic element is made by coating a conductive support with a dispersion containing an inorganic photo-conductor, an organic non- polymeric substance and a solvent therefor. The non-polymer substance has a resistivity of at least 10<SP>11</SP> ohm. cm., is non-hydroscopic and soluble in water to the extent of not more than 10 wt. per cent. On evaporation of the solvent, the non-polymer substance is precipitated and sedimentation of the photo-conductor particles occurs, thereby giving closed packing. The photo-conductor may be ZnO 5 , TiO 2 , CdSe, Hgl 2  or PbO. The non-polymeric organic substance may be an acid or anhydride; a phenol derivative including dizarin or phenolphthalein; or amine an ester or an aniline derivative, examples of each being specified. Dyestuffs may be added to sensitize the compositions. Devices responsive to X-rays can be made. The support may be paper or metal.
Patent GB-1311633-A (GB)
Title: Process for the simultaneous production of styrene ethyl benzene phenol cresols and benzene
IPC: C07C2/82
Filed: 1971-04-21
Abstract: 1311633 Phenol; cresols NAUCHNOISSLEDOVATELSKY INSTITUT SINTETICHESKIKH SPIRTOV I ORGANICHESKIKH PRODUKTOV 21 April 1971 [27 April 1970] 10332/71 Heading C2C [Also in Division C5] Phenol, cresols, styrene, ethylbenzene and benzene are produced simultaneously by reacting toluene with a C 1 -C 5  paraffin at 600-900‹ C. in the presence of an initiating agent which provides oxygen, e.g. air.
Patent GB-547783-A (GB)
Title: Improvements in or relating to covered sliding clasp fasteners
IPC: A44B19/34
Filed: 1941-08-15
Abstract: 547,783. Sliding-clasp fasteners. PLASCO, Ltd. Aug. 15, 1941, No. 10397. Convention date, Nov. 4, 1940. [Class 44] Covered sliding-clasp fasteners are produced by mounting the fastener members 12, 12a on a tape 14, 14a which is wider than necessary for the finished stringer, and folding the tape longitudinally so that the folded over portion covers the fastener members to an extent which will cause the meeting edges of two covers to abut at 15 when the members are interlocked, the layers of tape being secured together by one or more interposed ribbons of adhesive 16, 16a. Fig. 2 shows an arrangement for finishing two stringers simultaneously. The two flat tapes with the fastening members interlocked are passed over an adhesive-applying roller 20 with supply roller 21 to apply the requisite number of adhesive layers such as 19, 19a, the tapes then passing through a folding gauge 18 and pairs of pressing rollers 23, 23a which may be heated and have grooves 24, 24a to give clearance for the fastener members. The rollers may be driven to feed the tapes or may be idlers, a separate feed, not shown, being provided. When two or more spaced strips of adhesive are applied to each tape, the intervening spaces are disposed so as to be convenient for receiving stitches to secure the tapes to an article.
Patent GB-232956-A (GB)
IPC: C03B9/34
Filed: 1925-04-21
Abstract: 232,956. Schiller, A. April 23, 1924, [Convention date]. Blowing.-A combined ring-mould and transfer tongs, as used in machines of the Schiller type, consist of a. body 1 secured to the handle 6, and two segments 3<a>, 3<b> which are hinged to the body and are coaxial with it when closed. The segments are locked in position when closed by a bolt or latch 8. The part 2 of the mould which forms the mouth of the bottle may be made detachable from the body 1.
Patent GB-591034-A (GB)
Title: Sealing device for shafts
IPC: F16J15/40
Filed: 1945-04-25
Abstract: 591,034. Stuffing-box substitutes. JET SHAFT SEALS, Inc. April 25, 1945, No. 10428. Convention date, April 27, 1944. [Class 122 (v)] For sealing the clearance 13 between a rotatable shaft 10 and the contiguous wall of a liquid-containing casing 11, the clearance 13 communicates with a housing 21 surrounding the shaft 10 which carries an impeller 15 rotatable therewith to deliver liquid from the housing to the clearance at a pressure higher than that obtaining in the casing adjacent the clearance and means are provided for withdrawing liquid from the casing and delivering it to the housing or impeller. The impeller 15 comprises vanes adapted to throw the liquid outwards against the periphery 22 of the housing 21 to force it along the clearance 13 at the inner end of which a smaller impeller 14 directs it towards the mouths of conduits 16 which convey it back to the impeller 15. This impeller has a conical face 34 directed away from the casing and on it slide four sectors 36 of a ring drawn together by a garter spring to stop the passage of liquid through a gap 26 between the shaft 10 and the outer wall 24 of the casing when the shaft is at rest ; when the shaft rotates, centrifugal force expands the sectors and air is drawn in by the impeller to prevent escape of liquid outwards and direct the seating fluid inwards towards the clearance 13. In a modification, the impeller 14 and conduits 16 are omitted, the impeller 15 substantially fills the casing 21 and its face adjacent the casing co-operates with a fixed annular plate to form an inwardly directed annular nozzle adapted to draw liquid through a return pipe connected to the casing and direct it into channels on an extension of the hub portion of the impeller, the channels guiding it into the clearance 13.
Patent GB-826787-A (GB)
Title: Mixed anhydrides and their use as catalysts for the polymerisation of ethylenically unsaturated compounds
Inventor: SCOTT GERALD
IPC: C08F2/00
Filed: 1957-04-01
Abstract: The invention comprises mixed anhydrides of hyponitrous acid and at least one organic monoester of carbonic acid, having the formula RO.CO.O-N=N-O.CO.OR1, where R and R1 are alkyl, cycloalkyl, heterocycloalkyl, aralkyl, allyl or aryl groups, which may be substituted, e.g. by halogen, alkoxy, cyano or ester radicals.  The mixed anhydrides may contain further alkoxyformyl hyponitrite residues.  The anhydrides may be prepared by reacting at 0 DEG C. or below a hyponitrous acid or a salt thereof, with at least one haloformic ester Hal-COOR; a solvent may be used, and a tertiary base may be present.  Suitable hyponitrites are the Ag, Pb, Tl, Cu, K and NH4 salts. Specified radicals R and R1 are methyl, ethyl, &c., allyl, benzyl, cyclohexyl, tetrahydrofuryl, 3,5,5 - trimethylhexyl, 2 - ethylhexyl, r  - tolyl, o  - chlorophenyl, b  - methoxyethyl, b  - chloroethyl and 1-carbethoxypropanyl-2.  The compounds of the invention may be used as polymerization catalysts (see Group IV (a)).ALSO:Ethylenically unsaturated compounds may be polymerized and copolymerized using as catalyst a mixed anhydride of hyponitrous acid and at least one organic monoester of carbonic acid, of the formula RO.CO.O-N = N-O.CO.OR1 where R and R1 are alkyl, cycloalkyl, heterocycloalkyl, aralkyl, allyl or aryl groups, which may be substituted, e.g. by halogen, alkoxy, cyano or ester radicals, or may contain further alkoxyformyl hyponitrite groups.  Specified monomers are ethylene, styrene, methyl methacrylate, vinyl acetate, vinyl chloride, isoprene, butadiene, acrylonitrile, fluoroethylenes, propylene, N-vinylphthalimide, methacrylamide, vinylidene chloride, chloroprene, fluoroprene, N-vinyl carbazole, N-vinyl pyrollidone, acenaphthene, maleic anhydride, indene, chlorinated styrenes and diallyl fumarate. The polymerization may be effected in the presence of an inert diluent and a chain-transfer agent, e.g. carbon tetrachloride.
Patent GB-105726-A (GB)
IPC: H01H21/42
Abstract: 105,726. Leopard, E. A., and Johnson & Phillips. Dec. 1, 1916. Switches, quick-action.-A spring-operated plunger 17 moves over the surface of a tilting sector 4 to the spindle 2 of which the contact blades are secured, the sector being locked or retained during the forward travel of the plunger arm 15 and then suddenly released to close the switch contacts. The tubular plunger arm is free to turn about a spindle 16 carrying the operating- handle and a bell-crank lever 11, 12, the arm 12 of the lever having a slot 13 which is engaged by a pin 14 upon the plunger arm. An arm 5, in one with the sector, has pins 6, 7 to engage with the slot 8 of a link 9 pivoted to the lever arm 11, the pin 7 being in permanent engagement with the slot and the pin 6 being adapted to engage therewith when the parts are in the off position indicated in dotted lines in Fig. 1. As the parts move from ' on ' to ' off ' position the pin 6 passes into the slot 8 through an opening 21. The members 5, 9 are then in alinement and the sector is locked against rotation until the bell-crank lever has been turned sufficiently to cause the upper end of the slot to reach the pin 6. At this moment, the pressure of the plunger 17 upon the sector causes the pin to pass out from the slot through an opening 22 and a quick make is effected. In opening the switch, when the dead-centre of the sector has been passed and the compression of the plunger spring is sufficient to overcome the force of the switch contacts, the moving contact blades are rapidly taken to the ' off ' position as the sector tilts over
Patent GB-942741-A (GB)
Title: Improvements in and relating to the production of zirconium soaps
Inventor: TITTLE KENNETH
IPC: C07F7/00
Filed: 1959-03-26
Abstract: Zirconium soaps are prepared by reacting precipitated zirconium basic sulphate and one or more organic monocarboxylic acids in the presence of at least one alkali metal hydroxide or carbonate or alkaline earth metal oxides and/or hydroxide in an amount stoichiometrically equivalent to the sulphate content of the zirconium basic sulphate. Acids mentioned are 2-ethyl hexoic, caprylic, nonylic, lauric, linoleic, stearic, palmitic, abietic, oleic, ricinoleic, naphthenic, phenyl-acetic, butoxy- and phenoxyacetic, and butyl- and dodecyl-thiopropionic acids and examples describe the preparation of zirconium naphthenate and 2-ethyl hexoic acid esters.
Patent GB-493843-A (GB)
Title: Electrical circuits for producing currents or voltages of desired wave form
IPC: H03K4/86
Filed: 1937-04-14
Abstract: 493,843. Valve circuits. STANDARD TELEPHONES & CABLES, Ltd., and NEWSAM, B. April 14, 1937, No. 10613. Addition to 453,887. [Class 40 (v)] According to the parent Specification the distortion which arises when a reactance in series with a resistance is used for integrating or differentiating wave-forms is neutralized by means of reaction. According to the present invention the same principle is applied in the production of saw-tooth wave-form. Thus in an arrangement in which the condenser C, Fig. 4, is charged by the battery HT through resistances R, R4, until it is discharged through the intermittent conductor D, the voltage drop across the resistance R is kept constant by feeding back the potential-difference on condenser C to the grid of valve V1 which is coupled to valve V2 in such a way as to produce a voltage which compensates for the non-linear voltage due to the condenser. Alternatively the reaction circuits may produce over-compensation or under-compensation to allow for extraneous disturbances of waveform. The anode of a cathode-ray tube may be connected to the cathodes of the valves V1, V2, while its deflecting plates are connected at Dx1. Dx2. In another embodiment, Fig. 5 (not shown), the current through an inductance (as opposed to the voltage across the condenser C) is given a saw-tooth wave-form the inductance in question being that of the deflecting-coils of a cathode-ray tube. In a further modification, Fig. 6 (not shown), a single valve is used instead of the two valves VI, V2, and divided resistances are so arranged that an accurately saw-toothed wave-form is produced.
Patent GB-251290-A (GB)
Title: Improvements in or relating to the hydrolysis or saponification of glycerides or other organic esters
IPC: C11C1/02
Filed: 1926-04-23
Abstract: 251,290. Kokatnur, V. R. April 23, 1926. Soaps; glycerine. - Glycerides or other esters are saponified or hydrolyzed by acid, alkali, Twitchell's reagent, or other substance in presence of an organic diluent which is inert to the reacting substances or the products, is not a solvent for the glycerine or other alcohol but preferably is for the glyceride or other ester, and preferably has a boiling-point sufficiently low to allow it to be distilled off with the alcohol at a temperature not injurious to the raw materials or products. In an example, 800 kilograms of tallow, cocoanut oil, linseed oil, olive oil, fish oil, or other animal or vegetable fat is dissolved in 1600-2000 kilograms of kerosene boiling at 215‹ C., and heated in a still with 110-120 kilograms of powdered and substantially anhydrous caustic soda until all the glycerine and part of the kerosene have distilled over at about 200-215‹ C. The remaining kerosene is removed by distillation, or by adding about 30 per cent of water and distilling off the kerosene with steam, or by filtering from the soap and washing with water. Part of the diluent may be left in the soap. The condensed glycerine separates from the condensed kerosene on standing.
Patent GB-694025-A (GB)
Title: Improvements in electric signal translating circuits employing semiconductor devices
IPC: H03F3/183
Filed: 1949-04-22
Abstract: 694,025. Telephone transmission systems. WESTERN ELECTRIC CO., Inc. April 22, 1949 [April 23, 1948], No. 10757/49. Addition to 694,021. Class 40 (iv). [Also in Group XL (c)] An electric signal translating circuit comprising a semi-conductor device according to the parent Specification comprises a potential source connected between one of the input electrodes and a third electrode, and means comprising a resistor connected between the other input electrode and a point of fixed potential for the purpose of biasing the said other electrode. Fig. 1 shows a three-stage amplifier, each stage comprising a block of N-type germanium 1, having an emitter electrode 4, collector electrode 5 and a base electrode 6. The input is applied via transformer 7 between emitter 4 and base electrode 6, and the output is taken from the collector electrode of the third stage via transformer 14. The semi-conducting block and its associated electrodes amplify the signals, as described in the parent Specification, the emitter requiring a small positive bias, and the collector a larger negative bias relative to the base electrode. The collector electrode 5 is connected to a source of negative potential 9. The invention is based on the fact that current flows through the body of the block and across the high resistance barrier 3 to the base electrode 6 even if no signals exist, and a resistance 11, by-passed for signal frequencies by condenser 12, is connected so as to provide a biasing potential for the base electrode relative to the emitter. The source of separate bias for the emitter shown in the parent Specification is then unnecessary. Other circuits are described, including those of the " grounded grid " (i.e. " grounded base ") and " cathode follower " (i.e. " emitter follower ") type and Fig. 2 shows a telephonic amplifier according to the invention suitable for use at an unattended repeater station in which the potential source 29 is located at some distance from the amplifying elements. Specifications 632,942, [Group XL (c)], and 694,022, [Group XXXVI], also are referred to.