baber/WOPTO huggingface dataset:
Patent GB-823407-A (GB)
Title: Improvements in or relating to the production of metal powders
Inventor: WEHNER ROBERT
IPC: B22F9/22
Filed: 1956-07-25
Abstract: Metal powders with a grain size of less than 1m  are produced by slowly oxidizing the metal powder to oxide at a temperature not exceeding 500 DEG C., and then slowly reducing the oxidation product at a temperature not exceeding 830 DEG C. in a reducing gas such as hydrogen.  The oxidation-reduction may be repeated to produce a grain size less than 0.3m .  The process is applicable to the production of powders of tungsten, molybdenum, cobalt, nickel and iron.
Patent GB-788196-A (GB)
Title: Improvements in and relating to derivatives of naphthalene
Inventor: DUFFIN WALTER MARK
Filed: 1955-08-10
Abstract: The invention comprises 1-(b -chloroethylaminomethyl) - 2 - naphthol and acid addition salts thereof.  The naphthol may be prepared by reacting b -naphthol with formaldehyde and ethanolamine, e.g. in a solution using aqueous methanol as the solvent and heating under reflux, to form 2-(b -hydroxyethyl)-2,3-dihydro-1H - naphth[1 : 2, e] - m - oxazine, followed by acid hydrolysis of this compound to form 1-(b -hydroxyethylaminomethyl) - 2 - naphthol which is then chlorinated with a chlorinating agent such as thionyl chloride. In the example, 1-(b -hydroxyethylaminomethyl) - 2 - naphthol is prepared by the above process using hydrochloric acid which forms the hydrochloride salt thereof, and the hydrochloride salt is treated with thionyl chloride to form the hydrochloride of 1-(b  - chloroethylaminomethyl) - 2 - naphthol.
Patent GB-1291114-A (GB)
Title: Vehicle mudguard or wing protector
Inventor: LUMLEY NORMAN
IPC: B62D25/18
Filed: 1969-05-06
Abstract: 1291114 Mudguards N LUMLEY 17 April 1970 [6 May 1969] 23053/69 Heading B7J A protector for the underside surface of a vehicle mudguard or wing comprises a semirigid moulding 11 of imperforate sheet plastics material resistant to the corrosive effects of water. The moulding 11 has curvature in mutually perpendicular planes and is rigid enough to retain its shape which conforms substantially to the underside of the mudguard or wing yet is sufficiently flexible to be releasably retained thereunder by location of an edge 12 above an inwardly turned edge of the mudguard or wing.
Patent GB-325775-A (GB)
Title: Improvements in, and relating to, ground anchors
IPC: E02D17/08
Filed: 1929-07-27
Abstract: 325,775. Martin, A., and Middleton, W. B. C. July 27, 1929. Ground anchors comprise two or more arms a pivoted to a central shackle c to which the anchor line d is attached. The outer ends of the arms are reduced as at f and are provided with movable ground abutment plates e. The anchor is placed in a previously dug hole in the position shown; upon tension being applied to the anchor line the pull thereon tends to lift the pivot b and the arms act, toggle fashion, to force the abutment plates hard into the soil.
Patent GB-1316301-A (GB)
Title: Pharmaceutical useful benzomorphanes and their production
IPC: C07D221/26
Filed: 1970-05-13
Abstract: 1316301 Benzomorphane derivatives BAYER AG 13 May 1970 [17 May 1969] 23213/70 Heading C2C Benzomorphane derivatives of the Formula (I) and their salts with acid and bases, wherein R is a cyclopropylmethyl or cyclobutylmethyl radical, R<SP>1</SP> and R<SP>11</SP> are the same or different and may be straight or branched chain saturated C 1-5  hydrocarbon radicals; Q is OH or X.CO-, X being OH, -OR<SP>111</SP> or in which R<SP>111</SP> is a straight or branched, saturated or unsaturated hydrocarbon radical of up to 11C, R<SP>4</SP> and R<SP>6</SP> can be H, or C 1-4  hydrocarbon radicals or can also be linked via a direct bond or via -O- to form together with the N atom a heterocyclic ring; A is a bivalent, straight or branched chain, saturated or unsaturated hydrocarbon chain of up to 10C optionally carrying one or more phenyl substituents which may themselves carry one or more alkyl, alkoxy, halo, nitro or acylamino substituents, may be obtained by reacting a compound of the Formula (XII) in which R<SP>8</SP> is an acyl or CN radical, in the presence of an acid-binding agent, optionally in the form of its metal or NH 4  salt, with a reactive ester of a compound Y-A-OH, in which Y is a free or esterified hydroxyl and the product is desacylated at the N atom and then either (a) reacylated with R<SP>6</SP>-CO-Hal (where R<SP>6</SP> is cyclopropyl or cyclobutyl) and then reduced, or (b) reacted with ROH, to form (Ia), a novel compound which is converted into a reactive ester (e.g. halide or tosylate) and reacted with a metal cyanide to form a compound of Formula (XXI) which is converted by known methods into a compound of Formula (I) in which Q is X.CO-. A compound (Ia) in which A is shorter by one CH 2  than the desired product, can be converted to a reactive ester, reacted with a salt of a malonic ester, and the product converted by hydrolysis and decarboxylation to compounds (I) where X is OH or OR<SP>111</SP>. Compounds (I) in which Q is -COX or CN and R = CH 3 , may be demethylated with simultaneous saponification of Z, followed by (a) acylation with R<SP>6</SP>COHal and reduction to form (I) where Q is -COOH, or (b) reaction with R<SP>6</SP>-CS-SR<SP>7</SP> (where R<SP>7</SP> is optionally substituted carboxymethyl or alkyl) and the product reduced to form a compound of Formula (I). Various modifications of such methods are also described. The compounds in which Q is X.CO- are claimed in Application 23212/70. Pharmaceutical compositions having analgesic activity comprise compounds of Formula (I) above together with a solid or liquid diluent or carrier, in forms suitable for oral or parenteral administration.
Patent GB-213839-A (GB)
Title: Balance bearing for time keepers
Inventor: PAWLICK JOHN J
IPC: G04B31/012
Filed: 1923-09-18
Abstract: 213,839. Pawlick, J. J., Gibson, J. G., and Wilson, D. Sept. 18, 1923. Jewelling and pivoting.-The balance staff of a timekeeper is supported at each end in a ball bearing comprising a two-part holder 7, 9 held in place by screws 10, the races 5, 8 occupying, in cross-section, arcs of 90‹ and having a radius of curvature only slightly greater than the radius of the balls. The weight of the staff is, in all positions of the clock or watch, transmitted through vertical diameters of the balls. The part 7 may be made of hardened steel or of precious stone.
Patent GB-461638-A (GB)
Title: Improvements relating to self-locking nuts
IPC: F16B39/34
Filed: 1935-08-20
Abstract: 461,638. Nuts. SIMMONDS, O. E., ROBERTSON, E. R., and SIMMONDS AEROCESSORIES, Ltd. Aug. 20, 1935, No. 23375. [Class 89 (i)] A self-locking nut has an elastic member, provided with a hole of less diameter than the maximum diameter of the screw-threads of the nut, housed within a suitably-shaped casing secured to the nut body in axial alignment, so that, when the nut is screwed on to a screw, the elastic member and its casing move with the nut body and the threads of the screw penetrate into the elastic member. The elastic member 1, Fig. 1, which comprises one or more annular discs or tubes of vulcanized fibre or like material, is housed in a cylindrical metal casing 2 having an inturned end 3, the other end 4 being secured to a cylindrical wall 5 of the nut body 6. The end portion may be forced, as by spinning, into a circumferential groove 7. In a modification, the casing is pressed into recesses in the wall 5. The nut body 6 may be shaped to facilitate removal of the casing 2 by means of a suitable tool. In a further modification, the casing is spot welded to the nut body. In a further modification, Fig. 6, the casing 2 is detachably attached to the nut body 6 by a spring clip having projections 10 passing through apertures in the casing 2 into recesses 9 in the nut body. Other means for securing the casing to the nut body are described. Various means are described for preventing relative rotation between the casing and nut body, and between the casing and the elastic member. The casing may be closed at the end remote from the nut body ; alternatively, the nut body may be closed at the end remote from the casing.
Patent GB-711374-A (GB)
Title: Improvements in and relating to methods for improving the adhesion of organopolysiloxanes to solid surfaces
IPC: C03C25/40
Filed: 1951-10-09
Abstract: A process for improving the adhesion to a solid surface of a heat-hardenable organopolysiloxane having only hydrocarbon groups as substituents and containing less than 0.2 mol. per cent. copolymerized mono-organosiloxane comprises coating the surface with an organo-silicate or organo-siloxane of general formula: <FORM:0711374/III/1> where R and R1 are alkyl groups or halogen substituted alkyl groups, and R1 may also be an aryl, aralkyl, alkaryl, alkoxy or aryloxy group or halogenated derivative of one of these groups; the organosilicate or organosilane being hydrolysed before the organopolysiloxane is applied.  In the above formula R and R1 may be methyl, ethyl, propyl, isopropyl, butyl, amyl, isoamyl, octyl, isooctyl decyl, dodecyl, or beta-chloroethyl radicals.  R1 may also be of formula -OZ, where Z is an alkyl group as described for R, or additionally Z may be a phenyl, tolyl, xylyl, benzyl, phenylethyl, naphthyl, anthracyl, or diphenyl radical, or halogenated derivative of these radicals. The initial coating may comprise tetraethylortho-silicate, t-butoxytriethoxysilane, methyltripropoxysilane, beta-chloroethylorthosilicate, t-butoxytriethoxysilane, t-amyloxytriethoxysilane, dit-amyloxydiethoxysilane, di-n-butoxydiethoxysilane, n-butoxytriethoxysilane, 2-methoxyethylortho-silicate, di-t-butoxydiethoxysilane, methyltributoxysilane, methyltripropoxysilane, methyltriisopropoxy-silane, di-t-butoxydiphenoxysilane.  The organopolysiloxane may be one described in Specifications 594,481, [Group IV], 618,453 and 640,067, [both in Group IV (a)], and may contain, as fillers, silica aerogel, titanium dioxide, lithopone, zinc oxide or iron oxide, as well as cure accelerators, such as benzoyl peroxide or tertiary butyl perbenzoate.  The initial coating may be hydrolysed by treatment with acid fumes, or by acid-forming metallic salts, such as Fe C13, CuC12, AlC13, SnC14, either on the surface prior to the application of, or incorporated in, the initial coating; or the first coating may have incorporated therein chlorosilanes or polyorganohalogenopolysiloxanes, which effect hydrolysis with moisture in the air.  After the first coating is hydrolysed, washed and dried, the organopolysiloxane may be applied with heat and pressure to cure it, which curing may be performed in several stages. Specifications 597,178, [Group IV], and 676,464 also are referred to.
Patent GB-1108663-A (GB)
Title: Improvements in or relating to diversity receiver systems
IPC: H04B7/08
Filed: 1965-06-02
Abstract: 1,108,663. Diversity reception systems. L. R. KAHN. 2 Time, 1965 [9 June, 1964], No. 23495/65. Heading H4L. In a diversity reception system the received signal in each channel is divided into a plurality of contiguous bandwidth segments and the amplitude of the signals in corresponding segments of the channels is compared to produce a signal controlling the amplification of the respective segments in a predetermined manner. The phase relationship of corresponding segments in the diversity channels also may be controlled to maintain the signals in phase. The amplitude control may be carried out before or after detection. As shown in Fig. 1, demodulated diversity signals from receivers A and B are supplied to mixers 26, 28 respectively together with a carrier frequency of 9À95 kc./s., the sum signals being supplied to devices 30, 32, which include a parallel array of bandpass filters followed by variable gain amplifiers, Fig. 2 (not shown), for dividing the channels into segments and subsequently recombining the segments. The output of each filter in devices 30, 32 is sampled by a synchronously driven commutator 46, 48 respectively and the resulting samples are fed to an amplitude comparator 62 and a phase comparator 64. The comparator 62 develops outputs which are amplified to an extent determined by the greater of the two inputs on the " ratio squaring " principle, and via gain control circuits 70, 72 and commutators 50, 52 which are mechanically coupled to commutators 46, 48, are applied to control the gains of the corresponding amplifiers in circuits 30, 32. The output of phase comparator 64 is supplied to a phase control circuit to develop a phase correction signal which is used to correct the phase of the signals in channel A in relation to those in channel B, the filters in device 30 being preceded by phase-controlled amplifiers, Fig. 2 (not shown). The phase-correction signal is supplied via an " autoset " 88 which is arranged to provide either a phase control voltage, or a predetermined voltage which returns the controlled circuit to the centre of its operating range if the automatic phase control voltage should exceed the normal control range or if the signal in the segment is below a predetermined level. The signal from circuit 88 is supplied via a further commutator 54, coupled to the other commutators, to the phase-controlled amplifiers in device 30. At the output of devices 30, 32 the channel segments are combined and after further amplification the two channels are combined at 102, demodulated at 106 and passed via filter 112 to a utilization device 116.
Patent GB-247861-A (GB)
Title: Improvements relating to non-slipping horse shoes
IPC: A01L7/02
Filed: 1925-09-22
Abstract: 247,861. Young, C. H. Sept. 22, 1925. Addition to 213,436. Renewable calks, &c.-Tapered units or screws 5 are employed for securing the block 3 to the shoe 2 and against the downwardly extending projections 4 in place of the devices used according to the parent Specification.
Patent GB-901105-A (GB)
Title: A process for the preparation of í~-3-keto-19-hydroxysteroids and esters
IPC: C07J5/00
Filed: 1959-02-09
Abstract: The invention comprises (1) a process for the preparation of a D 1,4-3-keto-19-hydroxy-steroid or an ester thereof by dehydrogenation of a 3-keto (or D 4-3-keto)-19-hydroxy-steroid or an ester thereof by chemical or biological oxidation; and (2) the specific steroids, D 1,4-pregnadiene-17a :19:21-triol-3:20-dione 19:21-diacetate and D 1,4-androstadien-19-ol-3:17-dione 19-benzoate.  The dehydrogenation may be effected with, for example, selenium dioxide, selenious acid, dibenzoyloxy-selenium oxide or lead tetraoxide, or by utilizing enzyme systems of fungi of the genus Fusarium or Didymella or of B. subtilis or B. sphaericus; or it may be effected indirectly using compounds substituted by halogen atoms or acyloxy groups at the 2- and/or 4-positions.  The starting material may be a steroid of, for example, the cholestane, cholanic acid, pregnane, androstane or spirostane series and it may contain such substituents as, for example, 17a -hydroxyl, 17b -acetyl, 17b -hydroxyacetyl or -acyloxyacetyl, 17a -ethynyl, 17a -methyl, 17-oxo, 11a - or 11b -hydroxy and 11-keto, or halogen atoms.  Examples are given.  D 4-androsten-19-ol-3:17-dione 19-benzoate is prepared by treating D 4-pregnene-17a :19:21-triol-3:20-dione with sodium bismuthate to give D 4 - androsten - 19 - ol - 3:17 - dione and benzoylating this. Specification 844,319 also is referred to.
Patent GB-1501564-A (GB)
Title: Print ribbon drive mechanism
IPC: B41J33/38
Filed: 1976-06-09
Abstract: 1501564 Ink ribbon mechanisms NCR CORP 9 June 1976 [25 June 1975] 23844/76 Heading B6F An ink ribbon feed mechanism for mounting on a print head carriage 34 includes at least one wheel 78, 80 in frictional contact with printing paper 55 which transmit their rotation (due to movement of the carriage 34) so that a shaft 100 is always rotated in the same sense irrespective of the sense of rotation of the wheels 78, 80. As shown, shaft 100 is connected by gears 92, 94, 98, 102 to the shafts 90, 96. The wheels 78, 80 are connected by unidirectional clutches (84, 86) Fig. 4 (not shown), to the shafts 90, 96, respectively. The shaft 100 provides a drive to a ribbon cassette containing an endless or "onetime" ribbon.
Patent GB-302261-A (GB)
Title: Improvements in and relating to machines for inserting eyelets and like fasteners
IPC: A43D100/02
Filed: 1927-09-10
Abstract: 302,261. White, A. E., (Muther, L.). Sept,. 10, 1927. Setting eyelets. - The work punching and eyelet or similar fastener-setting tools of a machine of the kind wherein the work is fed for a predetermined eyeletspacing between the punching and setting operations are oppositely mounted in a unitary slidable frame to prevent the tools from getting out of alignment, and the tools are moved at different speeds during the setting operation. As applied to an eyeletting machine, Fig. 2, the work is punched by a combined punch, work-feeding, and setting tool 191, mounted in a carrier 57 which is slidably guided in the upper part of a yoke-shaped tool-carrying head or frame 51, in the lower part of which a lower setting tool 39, containing a spring - supported pin 39<a>, adapted to remove. the lowermost eyelet from a feed raceway, is slidably guided'. The head 51 is reciprocated on a stationary shaft, to feed the work, by a cam 110 on the main shaft 2 which drives a lever 125 connected to the head 51 and to the machine frame, and which is supported by a head 127 which may be displaced by a foot operated treadle rod 167, while the machine is running, to vary the work feeding stroke. The carrier 57 is reciprocated by a lever 62 which is pivoted on a removable shaft 65 mounted in an eccentric bush bearing 64 to adjust the throw of the tool. The opposite end of the lever 62 is connected by a link 72 to the pivot 85 of a toggle mechanism 72, 76, connected by a link 87 to a pitman 95 which is reciprocated by a cam 6 on the main shaft. The plunger 57 is connected to the lever 62 .by an anchor plate 61 rigidly attached to the lever 62 and adapted to engage a notch 60 in the plunger, and the plunger 57 may be removed to change the tool 191 by removing the shaft 65, as shown in Fig. 7. The lower tool 39 is reciprocated by a slide member 30 connected thereto, and is moved up and down, through a lever 19, 21, pivoted at 20, by a. block 11 slidingly mounted within an eccentric groove in a rotary member 6 on the main driving shaft 2. The slide member 30 is connected with the lever 21 by an adjustable connecting link 25, to which the slide member 30 is hinged, so that it may be moved sideways, as shown in Fig. 7, for the detachment of the tool 39. To facilitate the location of the eyelet in setting eyelets in " military stay " strips, wherein the right side of the upper faces downwards, a circular punch block 500, provided on its upper face with a groove 501 in which the stay can slide, and with a depending pivot-stud 502 which traverses the work table, is provided. An additional raceway is fitted for washers, when the machine is used for setting hooks or lacing hooks combined with washers.
Patent GB-1195513-A (GB)
Title: Rapid Curing Epoxy Resin Compositions
Inventor: HOLMES GEORGE WILLIAM
IPC: C08G59/50
Filed: 1968-05-20
Abstract: 1,195,513. Curing epoxy resins. DOW CHEMICAL CO. 20 May, 1968, No. 23924/68. Heading C3B. A curable mixture comprises 100 parts by weight of an epoxy resin and from 10-25 parts by wt. of a mixture of dicyandiamide (I) and a polyamine-zinc or cadmium salt co-ordination complex (II) which is stable at ambient temperature but unstable at 100-200 C. The mixture comprises at least 1 part by wt. of I and the ratio I: II may range from 1:1 to 1: 10. II is a complex of a zinc or cadmium salt and a polyethyleneamine: H 2 N(CH 2 CH 2 NH) n R where R is H or an alkyl or aryl radical; n = 1 to 5. Examples are complexes of zinc oxalate with ethylenediamine or N(#-phenylethyl) ethylenediamine.
Patent GB-509092-A (GB)
Title: Improvements in or relating to mills for grinding foodstuff, particularly coffee mills
IPC: A47J42/16
Filed: 1938-08-13
Abstract: 509,092. Disc mills. HOBART MANUFACTURING CO. Aug. 13, 1938, No. 23932. Convention date, Aug. 13, 1937. [Class 59] In a disc mill a motor carrying a grinding disc is mounted in a casing and a stationary disc is mounted on the base of a hopper adapted to be screwed into the casing to vary the distance between the discs. As shown a disc 40 provided with a grinding surface 45 is slidably mounted on a motor spindle and is driven by a peg 41, the disc being resiliently supported on the shaft by a spring 44 and is adjustable relatively thereto for zero adjustment by a screw 43. The sides and underneath portion of the disc are provided with lugs which sweep the ground material to a tapering outlet 71 covered by a weighted lid 72. The coacting grinding surface 62 is attached to the base of a hopper 51 which is screwed into a casing 12 to adjust the clearance between the discs, the clearance being indicated by a pointer 64 and ring 65. The hopper base is retained in its adjusted position by spring-pressed plungers 66 engaging in holes in the hopper base, the spring plungers being sufficiently strong to take up any backlash in the screw-threads of the hopper. The hopper may be of celluloid &c. secured to the base 52 by a spring ring 53. The motor stator 23 is fixed by a screw-bolt 22 between projections 20, 21 on the casing 12 and base 10 respectively and the brush 24 which contacts with the commutator 25 is held by a cap 26 in the side of the casing 12. The upper and lower bearings 33, 15 of the motor spindle are of graphite-impregnated bronze held in recesses in diaphragms 13, 30 in the base and casing respectively by resilient members 17. Specification 454,685 is referred to.
Patent GB-360861-A (GB)
Title: Improvements in gramophones
IPC: G10K13/00
Filed: 1930-08-11
Abstract: 360,861. Sound-magnifying appliances. YOSHIZAWA, C., 145, Komagome Hayashi- Cho, Hongo Ku, Tokio. Aug. 11, 1930, No. 24035. [Class 13.] A sound horn for gramophones is laterallv bounded bv two walls 10, 10a which are each curved through four rightangles, and one wall 10a is interposed between the convolutions of the other wall during a part of its length so as to form with such wall a curved passage having one part of its length turning in a contrary sense to the other part. The passage, which is for the most part bounded above and below by plane surfaces 8, 9, terminates in a flared mouth 7. The inner end of the horn is connected with a tube 6 communicating with the tone arm. The horn may be of gradually increasing cross-sectional area from the inner end to the outlet, and the thickness of the curved walls and the top and bottom plates may be correspondingly increased. The horn may be moulded from gypsum, cement, rubber, celluloid, pulp, bituminous compounds, " Bakelite," &c., or the walls 10, 10a may consist of plastic material and the top and bottom plates of wood or metal.
Patent GB-441786-A (GB)
Title: Improvements in or relating to lightning arresters
IPC: H01T1/04
Filed: 1934-08-22
Abstract: 441,786. Protective arrangements. SADLER, A., 65, Temple Row, Birmingham.- (Schiele & Bruchsaler, Industriewerke Akt.- Ges. ; Baden-Baden, Germany) Aug. 22, 1934, No. 24173. [Class 38 (iv)] In a lightning-arrester, a system of spark gap electrodes 2, 2<a>, 2<b> is housed within an insulating chamber 1<d>, and an electromagnetic blow out coil 3 and resistance 5 are housed within a separate insulating chamber 1<c>. The arms 4<a>, 4<b> of the U-shaped magnet 4 carry the resistance 5 and coil 3 and are extended to lie on the outside of the electrode chamber so that the spark gaps are perpendicular to the magnetic field by which they are quenched.