baber/WOPTO huggingface dataset:
Patent GB-349829-A (GB)
Title: Improvements in or connected with sound reproducing machines
IPC: G03B31/00
Filed: 1930-07-19
Abstract: 349,829. Flexible shaft couplings. ASSOCIATED SOUND FILM INDUSTRIES, Ltd., River Plate House, Finsbury Circus, London.-(Assignees of Ebeling, C. W. ; 1600, Broadway, New York, U.S.A.) July 19, 1930, No. 21868. Convention date, July 19, 1929. [Class 80 (ii).] A casing 14 for gramophone driving mechanism is supported on resilient blocks 13 and, carries a hollow boss 16 supporting a worm 22 on a driving shaft 23. The lower end 18 of the boss 16 carries a step bearing for a hollow rotatable shaft 20 which has a gear wheel driven by the worm 22 and at its upper end a disc 30. A small disc 46 and the turntable 48 are mounted above the disc 30 on a spindle 47 rotatable in the shaft 20. The driving connection between the discs 30, 46 consists of a lever 32 which is pivoted at 33 to the disc 46 and is secured to the disc 30 by springs 38 and pin 31. The disc 46 has adjustable stops 37 and a damping friction plate 41 for co-operation with the lever 32. The shaft 23 is driven from a motion picture proj ector through sound-deadening flexible couplings 24, 28 and a telescopic connection 27.
Patent GB-276354-A (GB)
Title: Improvements in and relating to electromagnetic relays
IPC: H01H51/22
Filed: 1927-08-19
Abstract: 276,354. Stav÷strand, H. Aug. 19, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 21, 1927]. Morse and like recorders.-A. combined telegraphic relay and recorder comprises electromagnets 1, 2 on soft-iron covers which are polarized by a permanent magnet 7 or equivalent electromagnet. The armature 8 has a knife-edge 9 resting on the end of the pole-piece 6 and is supported by a blade spring 10 connected by a wire 11 to an adjusting screw and nut 12, 13. Normally a contact plate 14 attached to the armature rests against the lower of two fixed contacts 15, 16. The armature may additionally carry the needle or arm of an undulating recorder.
Patent GB-792113-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C1/26
Filed: 1956-07-16
Abstract: 792,113. Nuclear reactors. STICHTING REACTOR CENTRUM NEDERLAND. July 16, 1956 [July 18, 1955], No. 21931/56. Drawings to Specification. Class 39(4). A nuclear reactor fuel is in powder form and is circulated continuously downwards through the reaction zone and upwards through the cooling zone by the fluidizing gas. The fissile powder includes a heat carrying material and may also include the moderator and a breeder material. The materials used may be, fissile material U235, U233, Pu ; moderator beryllium oxide ; heat carrier Bi 2 O 3 , MgO, SiO 2  MgSiO 3 , ZrSiO 4 , Mg 2 P 2 O 7 ; gas O 2 , CO 2 , Co, He ; breeder, U238, Th ; cooling medium, H 2 O; reflector, graphite. Specification 792,114 is referred to.
Patent GB-860709-A (GB)
Title: A new or improved method of pickling alloy steels
IPC: C25F1/06
Filed: 1959-06-26
Abstract: Alloy steel surfaces are cleaned and freed from scale by pickling electrolytically using as electrolyte a solution of neutral salts of mineral acids, and then a brief immersion in a strong mineral acid to remove the loosened scale.  Preferably Na2So4 is used, but other salts of Na, K, or NH4 preferably giving a pH between 1 and 7 are usable.  Small amounts of sodium fluoride or per-salts may be added to aid the formation of per-oxydisulphate which loosens the scale and passivates the surface.  The final non-electrolytic treatment with mineral acid is effected for about 25 secs. at 40 DEG C. using H2So4, HNO3 or a mixture of HF and HNO3.
Patent GB-1071589-A (GB)
Title: Liquid rinsing,washing and cleaning agents
IPC: C11D17/00
Filed: 1966-05-18
Abstract: Liquid rinsing, washing and cleaning agents containing (a) 3-25% by weight of a detergent sulphonate mixture consisting of 40-90% of a water-soluble salt of an alkyl sulphonate having 8-24 carbon atoms in the molecule and 10-60% of a water soluble salt of an a -sulpho fatty acid ester derived from saturated fatty acids having 10-20 carbon atoms in the molecule and sulphonated in the a -position to the carboxy group and esterified with monohydric aliphatic alcohols containing 1-6 carbon atoms in the molecule, (b) 5-40% by weight of a neutral potassium pyrophosphate or a mixture of neutral and acid pyrophosphate, (c) up to 15% of hydrotropes such as toluene and xylene sulphonates, while the solids content of the solution does not exceed 60% by weight. The usual additives used in washing agents such as alkanolamides, dyes, brighteners, perfumes and disinfectants may also be added.
Patent GB-387375-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H04Q1/36
Filed: 1931-08-04
Abstract: 387,375. Automatic exchange systems. ASSOCIATED TELEPHONE & TELEGRAPH CO., 1033, West Van Buren Street, Chicago, U.S.A. Aug. 4, 1931, No. 22083. Convention date, Aug. 18, 1930. [Class 40 (iv).] An impulse-repeating arrangement comprises a neon tube 15, relay 16, resistance 20 and battery.21 arranged to receive via condensers 8, 9 impulses caused by varying the current in an inductive circuit 27, 4, 28. An impulse breaks down the tube causing the operation of 16 which shunts the tube to prepare it for the next impulse. In the application of the invention shown the inductive circuit is that comprising the line relay of a telephone switch and the shunt is a relay 18 which repeats the impulses to a recorder R at an observation position.
Patent GB-263449-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F16J1/16
Filed: 1926-09-08
Abstract: 263,449. Norton Motors, Ltd., and Moore, W. W. Sept. 8, 1926. No Patent granted (Sealing fee not paid). Connecting-rods. - A gudgeon-pin is retained at each end by a split washer d, d<1>, which is held in a groove c in the bore of the piston boss by a spring ring f engaging a bevelled side of the groove. The ring f has inturned ends g to enable it to be gripped and contracted by a tool, and the washer has flats e to permit its insertion through the bore.
Patent GB-1334338-A (GB)
Title: Photographic apparatus
IPC: G03B17/52
Filed: 1972-05-11
Abstract: 1334338 Locating cassettes POLAROID CORP 11 May 1972 [14 May 1971] 22095/72 Heading G2A In a camera which has means for urging a cassette 28 against an opening 30 which locates the cassette in the correct exposure position, the said means also acts to prevent the cassette from being fully inserted into the camera in an upsidedown position. As shown, the camera contains a cassette holding film units of the self-processing type which after exposure are passed between rollers 34, 36. To load the camera, the roller section 32 is pivoted downwards, uncovering the open end 26 of a chamber 24 into which the cassette is inserted. The cassette, which is tapered from left to right, has a rectangular flange 70 which fits into a corresponding opening 30 in the forward wall of the camera, being urged thereinto by a spring member 50 attached to the inside rear wall of the camera and bearing against the rear side of the cassette. The free end of spring member 50 is shaped as at 55 and 58 so as to form a transverse channel at that end. When the cassette is inserted the correct way up Fig. 4 (not shown), the rear wall 46 rides up the inclined surface of member 50 and across the channelled part. If the cassette is inserted upside-down Fig. 3, flange 70 rides up the inclined surface, deflecting it downwards against the bias, until the flange aligns with the channel part. Member 50 then springs back, so that flange 70 enters into the channel part and is thus held against any further movement. The sloping edge 55 of the channel allows the incorrectly inserted cassette to be easily withdrawn.
Patent GB-575440-A (GB)
Title: Improvements in piston and cylinder arrangements for remote control mechanism
IPC: F16J10/02
Filed: 1944-01-27
Abstract: 575,440. Fluid-pressure motors. HEYWOOD COMPRESSOR CO., Ltd., HUNT, J. A., and JAY, J. B. Jan. 27, 1944, No. 22145/45. Divided out of 575,431. [Class 69 (ii)] [Also in Groups XXVI and XXVIII] In a fluid pressure motor for use in remote control mechanism, the piston o is supported by a double-ended seal t, u, held in place at a mid-point of the cylinder by compression springs y, z, controlling movement of the piston. The seal rings abut washers positioned by a circlip v. Distance-pieces w, x form abutments for the springs y, z, of which the former engages a flange 5 on a sleeve 6 having a second flange 7 engaging a rim 8 in the piston, and the latter abuts a washer 2 movable by a collar 3 on the piston extension 4. Fluid supply to the cylinder is controlled by the valve arrangement c, d described in Specification 575,431.
Patent GB-221079-A (GB)
Title: An automatic disinfector
IPC: E03D9/03
Filed: 1923-09-04
Abstract: 221,079. Mitchell, D. G. E., and Pearson, M. Sept. 4, 1923. Closets, disinfecting.-An appliance f o r automatically delivering a quantity of liquid disinfectant to water-closet basins, cisterns, and the like after flushing has ceased comprises a container a having a partition d to the underside of which is fitted a cock e delivering into a reservoir h and operable from outside. Attached to the container a is a conical end-piece terminating in a discharge orifice f to which a pipe g is connected; the reservoir h, as shown in Fig. 2, occupies about one-half the sectional area of the cone. A tipping-pan k is mounted above the reservoir h on a rocking-shaft j which extends outside the casing and is coupled by an arm p to the rod o of a piston n working in a cylinder l. The cylinder l is open to the atmosphere at the bottom and carries a pipe m at the top. In operation pipe m is connected to the flush pipe and pipe g to the water-closet basin or the like. The container a is filled with disinfectant through the orifice b which is then closed by the plug c. The cock e is opened so that the reservoir h is automatically filled to a suitable level. When flushing occurs, the pressure in the cylinder l is reduced and the piston n raised, thereby causing the pan k to be immersed in the liquid contained in the reservoir h. When flushing ceases, the piston descends and the pan is invented, throwing a quantity of disinfectant into the cone from which it passes by the pipe g into the basin.
Patent GB-912758-A (GB)
Title: Impact-resistant thermoplastic molding compositions
Inventor: SIEBEL HANS PETER
IPC: C08L51/00
Filed: 1961-06-20
Abstract: An impact-resistant thermoplastic composition comprises: (A) 80 to 40 parts by weight of polystyrene or a styrene-acrylonitrile copolymer containing at least 50% by weight of the former, and (B) 20 to 60 parts by weight of a polymer comprising 60 to 40% by weight of a polymer of a C4-C8 aliphatic acrylate which has been prepared with a redox polymerization catalyst and on to which 40 to 60% by weight, with reference to the amount of polymer (B), of styrene or a styrene-acrylonitrile mixture containing at least 50% by weight of the former has been polymerized.  Polymer (B) is preferably prepared by first polymerizing the acrylic ester, e.g. butyl acrylate, in aqueous emulsion with the aid of a redox catalyst followed by polymerizing styrene or a styrene-acrylonitrile mixture in the same medium with the aid of a catalyst, e.g. potassium persulphate, cumene hydroperoxide or azodiisobutyronitrile, and, if desired, further emulsifier.  The polymer (B) thus produced is then mixed with polymer (A), preferably in a machine which ensures a homogeneous product.
Patent GB-858068-A (GB)
Title: Manufacture of colour pigments in finely divided form
IPC: C09B67/00
Filed: 1957-07-12
Abstract: Phthalocyanine or anthraquinone pigments in finely-divided form are made by heating a crude phthalocyanine pigment or an anthraquinone pigment existing in its highest stable stage of oxidation for at least 5 hours at temperatures from 100 DEG C. to 300 DEG C. in sufficient aqueous medium so that all the pigment particles are surrounded by an aqueous phase.  The heating may be conducted in a pressure vessel with agitation and organic or inorganic substances which are stable to the reaction conditions may be present. Specification 821,629 is referred to.
Patent GB-587824-A (GB)
Title: Improvements in or relating to prefabricated roofed structures
IPC: E04B1/344
Filed: 1944-11-11
Abstract: 587,824. Roofs; barns. FROMSON, B. W., and ELLIS, G. H. S. Nov. 11, 1944, No. 22265. [Classes 20 (i) and 20 (iv)] Comprises a construction of roof assembled on the ground and then raised to normal roof height. The roof comprises pitched end lattice girders c and side and ridge purlins d covered by a tarpaulin a, asbestos sheets, corrugated iron or light reinforced concrete. A ceiling and/or roof fittings may be added before elevation. Links b are pivoted at f to the ground and are pivoted to the corners of the roof; in the form shown they are pivoted to short legs e formed beneath the roof. The roof is raised by tackle, the links become vertical and the upper ends of the links are then locked to the framework of the roof or to the legs e. The roof may be used, e.g., in covering hay. Specification 562,246 is referred to.
Patent GB-720020-A (GB)
Title: A protective relay for a 3-phase alternating current distributing system
IPC: H02H3/34
Filed: 1951-09-24
Abstract: 720,020. Protective cut-out systems; electromagnetic relays. CHAMBERLAIN & HOOKHAM, Ltd., DEACON, L. O., and LEWIS, H. S. Sept. 4, 1952 [Sept. 24, 1951], No. 22304/51. Class 38 (5). A negative phase-sequence protective relay for use in a three-phase system comprises three electromagnets arranged to exert a torque on a contact-carrying armature, each of the electromagnets having a reactive winding and a resistive winding, and further electromagnetic means exerting a further torque. As shown, an armature has three discs a1, a2, a3, which are acted on by resistive windings gl, g2, g3, and reactive windings f1, f2, f3, which are connected in parallel in pairs to current transformers h1, h2, h3, in the phases 1, 2, 3 of the system. Opposing torques are set up by further electromagnets i1, i2, i3, connected in series with an associated pair, e.g. gl, f2, of the other windings. Normally, the torques are balanced but on an unbalance occurring in the system 1, 2, 3, the discs rotate to close contacts c, d in a circuit breaker trip circuit e. The coils may all act on a single disc, and windings i1, i2, i3, may be replaced by shaded poles incorporated in the other electromagnets. The pairs of windings f1, g3, etc. may be connected in series with each other, a resistance being connected across each reactive winding. Each armature may comprise pivoted radial arms or discs each having a lateral flange on opposite sides of which the windings are arranged. The windings of a pair may be on a single core.
Patent GB-748567-A (GB)
Title: Improvements relating to the preparation of paratoluic acid
IPC: C07C51/255
Filed: 1953-08-13
Abstract: A process for the preparation of p-toluic acid from di-p-tolyl-methane hydroperoxide comprises heating the latter in acid medium to decompose it into p-tolualdehyde and p-cresol, separating the p-tolualdehyde and oxidizing it with oxygen or a gas containing free oxygen.  The hydroperoxide can be formed by reacting di-p-tolyl-methane with oxygen at 60 DEG  to 150 DEG  C., e.g. as in Specification 726,362, to produce a solution of hydroperoxide in unconverted hydrocarbon.  For the decomposition the solution can be heated with dilute, e.g. 10 to 25 per cent, sulphuric acid. It is preferably effected however, by passing steam into the mixture at normal or elevated pressure.  Alternatively steam and the hydroperoxide can be passed continuously to a reaction chamber which contains the dilute acid, the reaction products being entrained by the steam and being recovered from the condensate, e.g. as in Specification 748,566.  The oil layer of the condensate, containing tolualdehyde and unconverted hydrocarbon may be treated, after separation of cresol by treatment with aqueous alkali, with air at, e.g. 50 DEG  C. to effect the oxidation. The p-toluic acid is then recovered by washing the solution with aqueous alkali metal hydroxide.  The liquid in the reaction vessel is also continuously withdrawn and separated into layers, the aqueous layer, containing the acid, being returned and the oil layer being treated with aqueous alkali for the recover of p-cresol before its return to the reaction vessel.  An example illustrates the process.  The product can be converted to terephthalic acid by treatment with nitric acid.
Patent GB-1499489-A (GB)
Title: Boilers or steam generators
IPC: F22B27/08
Filed: 1976-06-01
Abstract: 1499489 Boilers A BRULFERT 1 June 1976 [3 June 1975] 22580/76 Heading F4A In a boiler having a catalytic burner in which catalyst elements 1 are arranged vertically and arranged in pairs facing each other inside a heat insulated tank 2, the space between facing catalyst elements 1 is occupied by two tubes 8, 9 which are coiled in superposed turns of a helix so as to overlap each other, the tubes 8, 9 communicating with a lower inlet tube 6 and with an upper collector 7 so that liquid in the tubes is vaporized or heated. Two further pairs of tubes 12, 13 are coiled into superposed turns of a helix and arranged on the backs of the catalyst elements 1 and the liquid to be vaporized flows between the inlet tube 6 on the upper collector 7. Further tubes 19, 20 are arranged at the top of the boiler through which the liquid to be vaporized or heated runs. The catalyst elements 1 are made of platinum sponge, cobalt sponge, ferronickel sponge or other material capable of acting as a catalyst for the oxidation and combustion of hydrocarbons. The elements 1 are fed with fuel through pipes 3 and 4 which enter at the base of the tank 2 and a known ignition system 5 is provided.
Patent GB-633394-A (GB)
Title: Improvements in electromagnetic switches
IPC: H01H50/22
Filed: 1947-08-14
Abstract: 633,394. Electromagnets. CRABTREE & CO., Ltd., J. A., BESAG, E., HILL, W. E., and WINTLE, T. D. G. Aug. 14, 1947, No. 22583. [Class 35] [Also in Group XXXVII] The operating magnet c and coil e of an electromagnetic switch are mounted on a'hook b on a base-plate a so as to be readily detachable. The hook co-operates with a lateral slot c<2> and a vertical opening c<1> in the magnet and with a groove g in the coil former, clearances being provided to permit alignment. The former is passed over the centre limb c<3> of the magnet so that its upper and lower ribs f, f<1> seat against an insulating sheet d on the base-plate a, and is supported in position by upper and lower boxes m, m<1>, the box m being pivoted upwards as disclosed in Specification 633,393, [Group XXXVII], to permit the mounting of the former. The lower box m<1> has openings n exposing contact blades k which connect terminals p on the front of the box with terminals i located in recesses h in the lower rib f of the coil former. The upper rib f may also have terminals for connecting to a secondary winding. Specification 633,396, [Group XXXVII], also is referred to.
Patent GB-1428112-A (GB)
Title: Fluid control systems
IPC: G05D7/01
Filed: 1972-05-15
Abstract: 1428112 Fluid pressure servomotor systems NORMALAIR-GARRETT (HOLDINGS) Ltd 26 April 1973 [15 May 1972] 22669/72 Heading G3P A control valve 10 comprises a main obturating member 14, a second flexibly mounted obturating member 28 operatively connected to the main member, and a control chamber 23 the pressure in which is derived from means such as an input to a vortex valve 34, such that movement of the member 14 in one direction causes a pressure change in the chamber 23 tending to restore the member to its original position. Fluid flows from an inlet 19, past the valve member 14 to an outlet about which is mounted a heat exchanger 40 through which fuel flows. The inlet 19 has a tapping 31 which has one branch leading to the vortex valve 34 to provide the radial input and another branch 35 leading to the valve 34 providing the tangential input. The tangential input is subject to control by movement of the obturating member 14 by virtue of the regulating action of the second obturating member 28 on a nozzle 26, and also a valve 37 which is responsive to the temperature of fuel leaving the heat  exchanger. The output of the vortex valve 34 is vented downstream of the control valve 10. In operation, should the temperature of the fuel flowing from the heat exchanger fall, say, the valve 37 responds by increasing the bleed through it to ambient which reduces the tangential flow, increases the radial flow and correspondingly reduces the pressure in the control chamber 23. The obturating member 14 therefore moves in an opening direction, the movement of which further obstructs the jet 26 and the effect of which is to increase the tangential flow. Thus the opening movement of the valve 10 is checked.
Patent GB-1382703-A (GB)
Title: Delay lines
Inventor: KASAHARA YUKIO
IPC: H03H9/36
Filed: 1972-05-15
Abstract: 1382703 Ultrasonic delay lines MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 May 1972 [14 May 1971] 22733/72 Heading H3U Unwanted propagation in an ultrasonic delay line, comprising a body 11 of lead silicate glass, is reduced by polygonal holes 29, 30 adjacent to the path 23-28 of a beam between two transducers 19, 20. The holes may be rectangular, cruciform or star-shaped and may be provided on their walla with energy-absorbent material such as rubber, wax, cement, resin or glass. The transducers 19, 20 are polarized as indicated by arrows 21, 22 respectively. Dimensions and the composition of the body 11 are given. Reference has been directed by the Comptroller to Specification 1,209,760.
Patent GB-699095-A (GB)
Title: Improvements in or relating to dolly-operated electric switches
Inventor: GOUGH ERNEST
IPC: H01H23/16
Filed: 1950-09-15
Abstract: 699,095. Tumbler switches. WALSALL CONDUITS, Ltd., Sept. 13, 1951 [Sept. 15, 1950], No. 22745/50. Class 38 (v) A resilient metal arm 19 fixed to the base at one end and connected to a terminal 16, carries contacts 23, 25 co-operating with fixed contacts 17, the arrangement being such that one pair of contacts is open whilst the other is closed, and vice versa. The arm 19 and an arm 24 carrying the contact 25 are arranged to be stressed respectively when contacts 23 and 25 are closed. The arm 19 has a bent back dolly-engaging extension 20 as in Specification 699,093 and the dolly has a sound-absorbing buffer 14 as in Specification 699,094.