baber/WOPTO huggingface dataset:
Patent GB-202289-A (GB)
Title: A miner's incandescent safety lamp
IPC: F21L23/00
Filed: 1923-07-19
Abstract: 202,289. Ferrette, L. E. F. Aug. 12, 1922, [Convention date]. Miners' safety lamps.-In a miners' incandescent safety lamp of the kind described in Specification 175,985. the liquid fuel passes from the pressure reservoir 1 to the vaporizing- coil 10 through a tube 7 fitted with a gauze strainer 8, a union 6, and a needle-valve 3 operated by a lever 5. The vapour from the coil 10 passes through a tube 12 fitted with a removable filter 13 to the nipple 17 of a Bunsen burner 18, which is held in position by a collar 10 secured to the tube 12 A mantle 20 is supported above the burner 18 by a rod 21 fixed in a holder 22. The fuel reservoir is put under pressure by means of a pump comprising a piston 26 and a hollow piston-rod 28 reciprocating in a barrel 25. The knob 24 of the rod 28 is covered by the operator's thumb during the in-stroke of the piston, and is uncovered during the out-stroke. The air compressed by the pump opens a valve 29 held against a valve seat 30 by a spring 33. The reservoir is fitted with a safety device for preventing excessive pressure consisting of a cup 37 formed with a piercing needle 38 and an escape aperture 40, and secured above a sheet lead disc 35 by a nut 39. The air for supporting combustion passes to the interior of the lamp through gauze filters 41. A guard 42 is secured at the base of the upper part of the lamp. In a modification, the burner 18 is slidable in the collar 19. When the lamp is inverted the burner moves downwards and a " butterfly " 44, Fig. 4, swings into such a position as to intercept the flow of vapour and extinguish the flame.
Patent GB-429551-A (GB)
Title: Improvements relating to the manufacture of inflatable articles
IPC: B29D30/06
Filed: 1934-06-23
Abstract: Hollow rubber articles such as tyres are vulcanized by subjecting them to internal and external pressure and heat, and during the operation, reducing the internal temperature while maintaining or increasing the pressure.  Steam, e.g. at 372 DEG  F. and 160 lbs. pressure, is admitted through a three-way valve to the interior of a tyre in a pot heater to which is maintained at a temperature of 290 DEG  F.  During vulcanization-after about 22 min. in the case of a 32 x 6 tyre-the three-way valve is operated to shut off the steam supply and admit air at a pressure of 200 lbs. per sq. in., until vulcanization is complete.
Patent GB-1306093-A (GB)
IPC: C07F9/26
Filed: 1970-04-20
Abstract: 1306093 Phosphoric acid amidohalides SANDOZ Ltd 20 April 1970 [5 May 1969] 18676/70 Heading C2P Novel compounds of the Formula I where R 1  is hydrogen or C 1-3  alkyl, R 2  and R 3  are C 1-5  alkyl, X is hydrogen or chlorine, Y is oxygen or sulphur and Z is chlorine or bromine, are prepared (a) by reacting a compound of Formula II with an amine R 1 R 2 NH or (b) by reacting a compound of the Formula IV with a compound of the Formula V The compounds of Formula I may be reacted with an alcohol R 4 OH to give esters of Formula VI where R 4  is C 1-4  alkyl, which have insecticidal, acaricidal and nematocidal properties. Reference has been directed by the Comptroller to Specification 1,257,721.
Patent GB-238367-A (GB)
Title: Improvements in or relating to coking retort ovens
IPC: C10B5/02
Filed: 1924-08-06
Abstract: 238,367. Jackson, W. J. Mellersh-, (Koppers Co.). Aug. 6, 1924. Coke ovens.-In a vertical - fluted coke oven in which adjacent heating - walls are connected for reversible operation by crossover ducts 29 as described in Specifications 171,117 and 205,459, each heating - wall is formed with h two parallel series of heating flues 17. Each series opens into an upper collecting-flue 27 or 28, and the pairs of collecting - flues on opposite sides of alternate ovens are connected by crossover ducts 29. The regenerators are parallel to the ovens, and both the regenerator chambers and the collecting - flues 27, 28 are divided in the longitudinal median plane of the battery so that the heating of the coke and " pusher " halves can be controlled independently. Associated with each heating- wall is a group of three regenerators of which the two outer ones A communicate each with one series of heating-flues, while the middle one P communicates with both. The oven mav be heated by rich gas supplied through ducts 32, or by a lean gas which is preheated in the regenerators P. The cross-over ducts 29 are lined with insulating material such as asbestos.
Patent GB-791729-A (GB)
Title: Improvements in rock drills
IPC: E21B10/56
Filed: 1956-06-18
Abstract: 791,729. Percussive drills. HELLEFORS BRUKS AKTIEBOLAG. June 18, 1956 [June 17, 1955], No. 18800/56. Class 124. A reaming drill bit having a drill crown and a pilot coaxial with the drill rod has cutting inserts arranged in the crown in at least two concentric circles, the inner circle being spaced from the pilot and each succeeding outer circle spaced radially from its inner neighbour, the edges of the cutting inserts lying at an angle to their instantaneous direction of travel. As shown, a crown 1 having two radially spaced concentric circles of cutting inserts 20, 21, has, threaded into a bore 2, a part 5 carrying a pilot 6 provided with flanges 9 and a circumferential notch 11, a drill rod being screwed into a bore in the part 5. The inserts may be cylindrical bodies with their longitudinal axes parallel to the longitudinal axis of the crown and their cutting edges lying at an angle between 45 and 90 degrees to their direction of travel.
Patent GB-567031-A (GB)
Title: Improvements in and in the manufacture of band clips having closing worm gear
IPC: B21D53/36
Filed: 1943-11-12
Abstract: 567,031. Making band clips. CHENEY & SON, Ltd., C. W., and CHENEY, C. W. Nov. 12, 1943, No. 18824. Addition to 555,580. [Classes 83 (ii) and 83 (iii)] Milling.-The method of making band clips, having closing worm gear, described in the parent Specification, is modified to produce teeth having a greater arc of engagement with the worm. The straight strip is bent to the form shown in Fig. 3, and the teeth are cut by a straight traverse of the hob or cutter along the depth line 7. When the blank is flattened in dies, these are shaped to raise ribs 12, Fig. 6, so that the teeth 13 are curved to fit the worm.
Patent GB-1393727-A (GB)
Title: Colour forming agents for the peroxide colour intensifying process
IPC: G03C1/64
Filed: 1972-04-24
Abstract: 1393727 Photographic processes to produce coloured images AGFA-GEVAERT AG 24 April 1972 [24 April 1971] 18882/72 Heading G2C Coloured images are produced by (i) imagewise exposing a light-sensitive layer to produce directly or indirectly an imagewise distribution of nuclei which are capable of decomposing peroxy compounds (i.e. compounds containing an-O-O-group) (ii) treating the layer with a peroxy compound which is decomposed by the nuclei and (iii) treating the layer with a colour-forming reactant which is oxidized by the remaining peroxy compound to form a dye, the reactant being an organic compound which contains a CN single or double bond and in which the C and N atoms are both directly bonded to separate aryl groups substituted with hydroxyl and/or amino groups or in which the N atom is a ring member of a 5-or 6-membered saturated or unsaturated ring (in which ring the N atom may be quaternized). The light-sensitive layer may be as disclosed in Specifications 1268126, 1307559, 1329444 and 1332692 which use noble metal salts, silver halides, photoconductive oxides, organic halogens, simple or complex salts of metals of Groups VIb, VIIb or VIII of the Periodic table or certain proteins; silver halide, complex ferric salts and TiO 2  being used in the layers of the examples. The colourforming reactant is preferably of formula wherein R 1  and R 5  are aryl groups substituted with 1 or more hydroxyl and/or amino groups and may have additional substituents; R 2 , R 3  and R 4  are hydrogen, alkyl or aryl or R 1  and R 5 , or R 4  and R 5  together with N atom complete a saturated or unsaturated 5-or-6-membered ring; provided that when R 1  and R 5  complete a ring, R 2  is an amino-or hydroxyl-substituted aryl group. The reactant may be used admixed with other aromatic amines, phenols and/or aminophenols in a processing solution or may be present in the light-sensitive layer. The preferred nuclei are nuclei of Ag, Au, Ru, Rh, Pd, Os, Ir and Pt.
Patent GB-357525-A (GB)
Title: Improvements in or relating to automatic calculating devices
IPC: G06G7/24
Filed: 1930-06-20
Abstract: 357,525. C a 1 c u l a t i n gapparatus. ZELENKA, O., 19, L÷wengasse, Vienna. June 20, 1930, No. 18912. Convention date, June 20, 1929. [Class 106 (i).] The ratio of two quantities is given by an apparatus comprising two potentiometers 1, 2 connected in shunt to a source 3 of constant potential. A voltmeter 6 is connected to contacts 4, 5 sliding on the potentiometer windings, and reading against scales placed adjacent thereto The resistance y included between one end of a winding and the sliding connection when the latter is over a scale reading x is given by the formula y=log x<n>, n being an arbitrary constant. The voltmeter is graduated to indicate the ratio directly. The Specification as open to inspection under Sect. 91 (3) (a) states also that the sliding contacts 4, 5 may be set by hand to the values read off adjacent measuring instruments. This subjectmatter does not appear in the Specification as accepted.
Patent GB-207217-A (GB)
Title: Improvements in carburetters
IPC: F02M17/28
Filed: 1922-07-12
Abstract: 207,217. Booth, J. H. July 12, 1922. Carburetting.-In a carburettor with a porous or absorbent material interposed between the liquid fuel supply and the air passage, the porous material is enclosed within a casing having a number of small fuel inlets through which liquid fuel is fed thereto, an adjusting-device being provided to vary the number of inlets or the size of all of them. The casing c surrounding the porous material e is provided with one or more apertures c<1> communicating with a float chamber b, and the porous tube e is reinforced externally by a thin metal shell f having apertures f<1> adapted to be brought into and out of register with the apertures e<1> by rotation of said shell, which is provided with a radial extension f<2> connected to a Bowden control, for varying the fuel supply. One end of the tubular air passage formed by the tube e is provided with a throttle valve d, while the tube e may be provided internally with projections or a core of smaller diameter to break up the current of air. In modifications, the shell f may be displaced longitudinally, or the casing surrounding the porous material may be provided with an external cylinder, fed with liquid fuel, having a number of holes communicating with the porous material, which may be in the form of perforated partitions, more or less of said holes being opened by a sliding piston working in the cylinder.
Patent GB-1465577-A (GB)
Title: Low-reflection hollow waveguide junction or adaptor
IPC: H01P5/08
Filed: 1974-05-01
Abstract: 1465577 Waveguide transition sections LICENTIA PATENT - VERWALTUNGS GmbH 1 May 1974 [4 May 1973] 19146/74 Heading H1W A waveguide transition section for insertion between a standard rectangular guide and a smooth or corrugated oval guide, has a generally rectangular cross-section modified by enlargements 9 of segmental-conical form, symmetrically and centrally arranged on the broad sides of the cross-section with the base of the cone towards the end of the section to which the oval guide in connected. In order to effect broad band matching of the waveguides, "lumped" reactances are provided in the form of short sections 10, 11, 12, 13 where the conical segment is modified to circular, these sections having diameters alternately greater than and less than the conical diameter at the corresponding point. These short sections have a length of between 0À038# and 0À045#. They replace the tuning screws or rods used in the prior art. The length of the conical enlargement is between 0À69# and 0À825#.
Patent GB-1432503-A (GB)
Title: Cycloalkylalkylesters and process for their preparation
IPC: A61P9/08
Filed: 1974-05-01
Abstract: 1432503 Esters of acids of the vincamine series SYNTHELABO 1 May 1974 [7 May 1973] 19150/74 Heading C2C Novel compounds I in which R 1  is H or OH and R 2  is H or R 1  and R 2  together represent a valency bond, m is 1 to 5 and n is 2 to 7, and pharmaceutically acceptable acid addition salts thereof, are prepared by esterifying or transesterifying compounds II in which M is H, an alkali metal or C 1 -C 2  alkyl, and, if desired subjecting a resulting compound I in which R 1  = OH and R 2  = H to dehydration to produce a compound I in which R 1  and R 2  represent a valency bond, and/or forming a pharmaceutically acceptable acid addition salt of a resultant compound. Pharmaceutical compositions useful as vasodilators and cerebral oxygen economizers, for oral, parenteral or rectal administration, comprise one of the above novel compounds together with a pharmaceutical carrier or diluent.
Patent GB-263421-A (GB)
Title: Improvements in rivets for metal trunks, boxes, and the like
IPC: F16B19/06
Filed: 1926-08-03
Abstract: 263,421. Richards, J. W. Aug. 3, 1926. Rivets for metal trunks &c. are constructed with a solid shank 1 having shallow cross-cut grooves 3 on the end face.
Patent GB-259890-A (GB)
Title: Improvements in wrist watch strap connectors
IPC: A44C5/14
Filed: 1926-08-03
Abstract: 259,890. Hadley, A. Aug. 3, 1926. Watch bracelets. - A watch strap is attached to a watch by passing a cross-pin through opposing holes 5 in lugs formed in a metal blank 1 and through a loop formed in the end of the strap, the pin being retained in position without riveting or soldering by engaging a recess or recesses formed in it with corresponding projections 9 formed in the bore of a tube 8 inserted between the lugs. The blank 1 is formed with hooks 2 for connection to the loop 4 of the watch.
Patent GB-1119436-A (GB)
Title: Mastic asphalt mixes
Inventor: BUCHAN JOHN CHARLES
IPC: C08L95/00
Filed: 1966-05-02
Abstract: A mastic asphalt contains particles of natural or artificial rubber of which more than 60% by weight has average diameter 1/16 to 3/16 inch.  Each particle is rubber unmixed with asphalt.  The proportion of rubber is 1-10% by wt. based on the mastic asphalt.  The rubber may be waste vulcanized natural rubber or graft rubber, e.g. rubber grafted to polymethylmethacrylate.  The rubber may be incorporated as an additive containing 50-80% by wt. rubber, the balance being cork 2-10% by wt. of the rubber additive based on the mastic asphalt, may be added.  The rubber or additive is added to the asphalt heated to 390-440 DEG  F.  The mastic asphalt comprises by wt. 10-20% bitumen and 80-90% mineral filler, e.g. limestone and grit. The composition may be trowelled on a floor, e.g. the metal deck of a ship, which may have been covered with a bitumen-coated fibrous layer.
Patent GB-203129-A (GB)
Title: Improvements in control circuits, particularly for use in automatic telephone systems
IPC: H04Q1/32
Filed: 1922-07-13
Abstract: 203,129. Western Electric Co., Ltd., (Western Electric Co., Inc.). July 13, 1922. Automatic exchange systems.-In order to ensure that the correct selecting operations are effected by impulses which, owing to their transmission over a long line or to a faulty sender, have become of unequal duration, the impulseresponding relay is provided, in addition to its operating winding, with a second winding so connected that, when the relay is energized, current in the second winding is opposed to that in the operating winding so that the relay is quick to deenergize, whilst, during de-energization corresponding to each impulse, current flows through the second winding in the opposite direction so that, at the end of the impulse. the relay is quick to energize. In the system shown, a line relay 2, responding to impulses transmitted from a substation dial 3, controls a register-mechanism 10. When a call is initiated, relay 2 operates over its right-hand (operating) winding, energizes a slowrelease relay 5 and completes a circuit through its left-hand winding, current in which opposes that in the right-hand winding so that, at the first impulse received, the relay is quick to de-energize. The relapse of relay 2 energizes stepping magnet 8 and completes a circuit from its grounded back contact over contacts 15, 16 and through its own left-hand winding in series with relay 5, the current in this circuit whilst insufficient in itself to energize relay 2 being in the direction to assist the operating winding, to ensure quick operation as soon as contacts 13, 14 are again closed. This circuit also serves to maintain relay 5 energized in the event of an exceptionally long impulse, and to short-circuit the operating winding of relay 2 to prevent further energization of the relay, in the event of an exceptionally short impulse, until after the magnet 8 has fully operated. At the end of its forward stroke, magnet 8 opens contacts 15, 16 removing the short-circuit from relay 2 which is thus ready to respond to the next impulse.
Patent GB-646795-A (GB)
Title: Improvements in gyratory crushers
IPC: B02C2/04
Filed: 1947-07-18
Abstract: 646,795. Gyratory crushers. BURGESS, A. F. (Smith Engineering Works). July 18, 1947, No. 19291. [Class 59] A gyratory crusher has a frame 4 formed with an upright central bore 6 providing a radially loaded bearing 6a extending downwardly from a point near the top of the bore for an eccentric sleeve 14 itself having an eccentric bore 15, the axis 16 of which intersects the axis 12 of the frame bore 6 above the top of the eccentric sleeve 14, said eccentric bore 15 providing a radially loaded bearing 14a extending downwardly from a point near the top of the bore for a shaft 25 depending from a crushing head 21 disposed above the eccentric sleeve 14 and cooperating with a crushing concave 8 carried by the frame coaxially of the central bore 6 to provide an annular downwardly and outwardly flaring crushing chamber, said eccentric sleeve 14 having a rigid flange 17 projecting outwardly from its upper end over the upper end of the frame bore with one axially loaded thrust bearing 19 interposed between the frame and the underside of said flange 17 and another axially loaded thrust bearing 20 interposed between the top side of the flange 17 and the crushing head 21, the first mentioned thrust bearing 19 lying in a plane perpendicular to the frame bore 6 and located outwardly beyond the radially loaded bearing 6a in such bore 6 and the second mentioned thrust bearing 20 lying in a plane perpendicular to said eccentric bore 15 but located outwardly beyond the radially loaded bearing in such bore, said thrust bearings 19, 20 being radially displaceable to compensate for looseness at such radially loaded bearings 6a, 14a. The eccentric sleeve 14 is rotated in the bore 6 by gearing 26, 27. Specification 435,237 is referred to.
Patent GB-423930-A (GB)
Title: Improvements in methods of and furnaces for burning granular fuel and the like
IPC: F23C99/00
Filed: 1933-07-07
Abstract: 423,930. Pulverulent-fuel furnaces. STOUFF, L. M. J., 101, Boulevard des Belges, Lyons, France. July 7, 1933, Nos. 19350, 19351, 19352, and 19353. Convention dates, July 7, 1932, Nov. 10, 1932, Nov. 14, 1932, and Jan. 27, 1933. [Class 51 (i)] In a furnace in which granular fuel is fed in at the top f, Fig. 1, and descends against an upwardly directed air current, the ash being removed from the bottom d of the furnace, the combustion chamber b is in the form of a truncated cone having an angle of not more than about 25‹ and of such length that the cross sectional area of the upper end is not less than about 15 times the cross section at the lower end. The combustion chamber is formed with a lower extension through which air is supplied. In one form, Fig. 2, the lower part 1 is formed with side air inlets 14, 15 and 16 and with a lower opening through which projects an air pipe 4 the blast from which induces a further supply through the surrounding annular space 5. A tangentially arranged air supply pipe 13 may also be provided. A conical plug 12 on the pipe 4 may be adjusted vertically to vary the opening 5. Loosely mounted on the pipe 4 is a sleeve 6 rotated by gearing 10, 11 and operating through a rod 7 a yieldingly mounted scraper 8 for removing slag. The lower part 1 may be vertically displaced to form an adjustable annular air inlet 17. In a modified form, Fig. 4, the lower end of the furnace is formed by conveying belts such as 21, 22 which allow the passage of air and assist the discharge of slag. Screens 32 adjust the level at which air is delivered. In a further modification, Fig. 6, the lower part of the furnace is formed by bars 33 actuated by eccentrics 38 so that the lower ends move inwardly and downwardly and then outwardly and upwardly, the upper ends sliding on guiding rods 36. Alternate bars or groups of bars are 180‹ out of phase. In a further modification the lower part is formed by a perforated water jacket. The sides of the combustion chamber may be formed with recesses or pockets in which the air is relatively quiescent and in which ash collects to be removed later.
Patent GB-984101-A (GB)
Title: Method of baking linings for aluminum reduction cells
IPC: H05B3/00
Filed: 1962-05-18
Abstract: 984,101. Electric infra-red heating panels. ALUMINIUM LABORATORIES Ltd. May 18, 1962 [May 19, 1961], No. 19361/62. Heading H5H. A method of baking in situ a carbonaceous lining 12 for an aluminium reduction cell 10, said lining 12 being formed of a mixture of a carbonaceous material and a binder, comprises heating said lining by applying infra-red heat energy thereto substantially uniformly over substantially the whole of the exposed surface of the lining from a plurality of infra-red radiant energy sources arranged over and in close proximity to said exposed surface. The heating arrangement shown comprises a number of panels 14 each having infra-red emitters in the form of an electric conductor enclosed in a quartz sheath mounted at the focal lines of parabolic reflectors 17, each panel being supported by height-adjusting screws 15 resting on cover-plates 22 of the cell 10. In an alternative arrangement (Fig. 6, not shown), the reflectors 17 are replaced by a plain asbestos sheet. The lining 12 is preferably protected from oxidation by a bumper 13 of metallurgical coke which is consumed during the baking process. The panels 14 are either spaced apart or provided with slots to allow air circulation and removal of fumes.