baber/WOPTO huggingface dataset:
Patent GB-423561-A (GB)
Title: An improved container for boots, shoes, and the like
IPC: A47L23/28
Filed: 1934-06-26
Abstract: 423,561. Boxes for boots &c. GOLDTHWAIT, S., 21, Sydenham Park, Sydenham, London. June 26, 1934, No. 18776. [Class 18] A box for boots, shoes, &c. that may be combined with receptacles D for polishing requisites is provided with a series of spaced rails B or walls notched at E to receive the heels of the boots for suspending them in the box. In a modification, the box is made longer to accommodate at one end a partitioned container for the polishing requisites. The rails may be arranged at different heights.
Patent GB-952324-A (GB)
Title: Improvements in and relating to protecting systems for electric lines
Inventor: TAYLOR JOHN HARGREAVES WOODCOC
IPC: H02H3/30
Filed: 1959-06-02
Abstract: 952,324. Protective cut-out arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 17, 1960 [June 2, 1959], No. 18839/59. Heading H2K. [Also in Division H3] Each terminal of a line protection system has a low-set relay to initiate a modulated carrier current transmission, a high set relay to permit tripping consequent to the result of a phase comparison, and means for changing the degree or character of the carrier wave when the magnitude of the line current is below a predetermined value to prevent tripping due to a critical phase difference between the currents at the section terminals when the load current is below the predetermined value. This arrangement is stated to prevent tripping during the time which the high-set relay requires for resetting after having been operated, when the capacitative current for re-energizing the section is comparatively high. The system may be of the kind in which the high-frequency carrier from each terminal is modulated by a squarewave signal to form " blocks," the gaps between the blocks from the respective terminals being a measure of the phase angle between the currents at the respective terminals. In this case, the means vary the degree of modulation so that a substantially continuous carrier wave is transmitted to prevent tripping when the current is below the predetermined value. Fig. 3 shows an arrangement for use at each terminal and comprising a transistor T 2  functioning as a squarer and a transistor T 1  serving as a magnitude control device. This arrangement is supplied by a transformer Tr having its primary winding P connected to a summation transformer (not shown), a secondary winding A providing a power supply for the transistors through a rectifier RF and a smoothing circuit R 2 , C 2 , C 3 , a secondary winding B supplying an operating signal to the base of the transistor T 2 , and a secondary winding C supplying by means of a resistor R 4  and capacitor C 4  a phase displaced signal for the base of the transistor T 1 . In operation, the voltage to which a capacitor C 5  is charged through the transistor T 1  depends on the voltage applied to the base of the transistor T 1  and determines the degree of modulation. The transistor T 2  conducts on alternate half cycles of the signal applied to its base and causes a square wave signal to be applied to the base of a transistor T 3  which produces a signal across a resistor R 6  for modulating the output of a high-frequency oscillator (not shown). Zener diodes W 1  . . . W 3  and a non-linear resistor N limit the applied voltages and a tuned circuit L, C 1  serves to provide an input to the primary winding P at least for a half cycle after the clearance of an external fault to ensure stability.
Patent GB-220150-A (GB)
Title: Improvements in steam generating installations
IPC: F22D5/18
Filed: 1923-07-23
Abstract: 220,150. Babcock & Wilcox, Ltd., (Deutsche Babcock & Wilcox Dampfkessel- Werke Akt.-Ges.). July 23, 1923. Hot-wat.er storage apparatus; feedwater, controlling.-In a boiler plant having a hot-water storage tank b the upper part of which is in communication with the boiler a at the normal water level therein, as described in Specification 192,685, the supply of feed to the boiler is so regulated that when the boiler pressure rises above the normal the feed supply is increased and when the boiler pressure falls below the normal the feed supply is interrupted or reduced. The feed valve k is operated by a piston device g which is forced downwards by the pressure in the steam pipe e against the upward pressure of a spring h. When the steam pressure rises above the normal, the feed valve is further opened, and when the steam pressure falls below the normal, the feed valve is partly or entirely closed. Specifications 204,984 and 225,898 also are referred to.
Patent GB-311138-A (GB)
Title: Improvements in cylinder grinders
IPC: B24B33/08
Filed: 1928-06-29
Abstract: 311,138. Hutto, M. C. June 29, 1928. Rotating-tool apparatus; tools.-In a cylinder grinder consisting of abrading-members 12 adjustable radially of a body 5 by cones 6, 7 acting on pins 3, 4 riveted to the holders 1 of the abrading-members, the holders consist of channel-section metal stampings having a base 1<a> and sides 1<b>, and the member 12 is secured therein by solder or other self-hardening material 13a. In order that the operative face 12<a> cf the member 12 may be at right-angles to the axes of the pins 3, 4 and at the correct distance from the axis of the body 5, the holder and the member 12 are placed in a mould in engagement with gauge faces thereof and molten solder &c. is poured in through an opening 11<a> in the base 1<a>. The cones 6, 7 are carried by a screw 9 and are pressed apart by a spring 9<b>, the pins on the abrading-members being held against the cones by spring members 9<a>, 10<a> engaging lugs on the holders. In operation, the tool is rotated and reciprocated in the cylinder, the mounting of the cones &c. allowing the members 12 to adjust themselves to the cylinder, and finally to assume a correct position parallel to the axis.
Patent GB-1384212-A (GB)
Title: Nickel-base superalloy articles
IPC: C22C1/04
Filed: 1973-04-19
Abstract: 1384212 Nickel base superalloy CRUCIBLE Inc 19 April 1973 [11 Sept 1972] 18972/73 Heading C7A A nickel base superalloy of composition:- Balance nickel and impurities produced by powder metallurgy and characterized by the absence of minor phase concentrations at prior powder particle boundaries. The particles may be prepared by gas atomization of a melt of the above composition, may have a mean intercept boundary spacing of less than 10 microns and may be compacted by hot isostatic pressing (e.g. at 2,100F and 15,000 p.s.i), extrusion, forging or rolling to give composites of density exceeding 95% of theoretical density which may be heat treated for 1 or 4 hours at 2,000F or 2,100F, oil quenched, held for 4 or 24 hours at 1,200F or 1,500F, air cooled, held for 8 or 16 hours at 1,400F and air cooled and may be used as a constructional material for jet engines.
Patent GB-274868-A (GB)
Title: Improvements in and relating to circuit interrupters
IPC: H01H9/36
Filed: 1927-07-19
Abstract: 274,868. British Thomson-Houston Co., Ltd., (Assignees of Paul, W. E.). July 23, 1926, [Convention date]. Magnetic blow-outs for switches &c. comprise a series of blow-out coils 20 - . 25, having flux openings of progressively increasing area, disposed along the path of the arc and interconnected so as to be successively included in the arc circuit as the arc lengthens. The coils 20 - - 25 are successively longer in shape and of greater reactance, and are connected to arcing terminals 40 - - 45 as well as to the succeeding coil. A barrier 28 protects the coils from the arc. The figure shows a switch provided with two series of blow-out coils.
Patent GB-872030-A (GB)
Title: Improvements in or relating to electromagnetic contactor devices
IPC: H01H50/54
Filed: 1958-06-16
Abstract: 872,030. Electromagnetic switches. TELE-MECANIQUE ELECTRIQUE. June 16, 1958 [June 3, 1957; Feb. 28. 1958], No. 19256/58. Class 38 (5). The E-shaped armature 5 is resiliently mounted between two posts 7 which slide in supports 3 and carry the moving contacts 13. As shown in Figs. 2, 3, 4a, the angle end-plates 5a of the armature are attached to a plate 6 having lugs 6a which are held against the ends of the posts 7 by resilient washers 10 retained by screw caps 8. Ball-bearings 11 engage in slots 3a in the supports 3 and slots 7a in the posts, which are biased to the position shown by torsion springs 12. A base-plate 1 carries the core 2 and supports 3, the coil 4 being retained about the centre limb of the core by clips 25. The moving contacts 13 are arranged to bridge pairs of fixed contacts 17a carried by the supports 3. The contacts can be arranged in a number of combinations of normally open and normally closed sets (Figs. 4b and 4c, not shown). The plate 6 also has projections 30, at right-angles to the lugs 6a, which actuate the plungers 31 of auxiliary switches 32. In an alternative arrangement, Figs. 7 and 9, the armature endplates 5a have apertured ends 70 which pass over the ends 61 of the posts 7 and fit into depressions 62a in collars 62. A spring plate 63, held by and rotatable about a pin 64 and located by a projection 65 in a hole 66, engages in notches 61a in the posts 7 to maintain the ends 70 in the depressions 62a. In this arrangement the core 2 is mounted by means of projections or screw heads which engage in four spacers 54 of rubber-like material which engage four studs projecting from the supports 3. Compression springs 58 retain the coil 4 on the cone 2 and bias the armature 5 to the de-energized position. Specification 853,162 is referred to.
Patent GB-187322-A (GB)
Title: Improvements in devices for testing the insulation of electric three-phase high-tension conductors
IPC: G01R27/02
Filed: 1921-07-16
Abstract: 187,322. Brennecke, F. July 16, 1921. No Patent granted (Sealing fee not paid). Detecting and locating faults; power meters; current meters.-In a device for testing the insulation of three-phase high-tension conductors, a measuring current dependent on the tension of the neutral point of a feeding transformer or generator relative to earth is combined with a measuring current dependent on the tension between two phases or between one phase and a neutral point, both currents being passed through one increasing instrument. Three instruments corresponding to the three phases, or one instrument with a suitable switch, are used. In the arrangement shown in Fig. 1, the secondary of a voltage transformer C, the primary of which is connected between earth and the neutral point of a feeding transformer A, is connected to the star-point of a three phase voltage transformer D on either side of the transformer A and through voltmeters I, II, III respectively to the three phases of the transformer D. For normal conditions of the insulation, each voltmeter reads the tension of the corresponding main, whilst in the event of an earth leakage on any main, the reading of the corresponding voltmeter drops to zero. The voltmeters may be replaced, as in the arrangement shown in Fig. 2, by two-coil instruments similar to ordinary wattmeters but having the current coil replaced by a second pressure coil, one coil being connected to the secondary of the transformer C and the other between the neutral point and one phase of the transformer D or between two of the phases. The deflections in the instruments, which then occur only when the tension of the neutral point of the transformer A relative to earth is not zero, depend on the phasedifferences of the currents in the two coils of the instruments, arrangements being described in which the coil connected to the transformer C gives a phase-difference of 0‹, 30‹ and 90‹ greater than that given by the coil connected to the transformer D, and in some of which the instrument corresponding to the faulty phase gives zero deflection. The three instruments may be replaced by a single instrument with a switch by which one coil of the instrument may be connected between any phase and the neutral point of the transformer D, or as shown in Fig. 5, between any two phases. The instruments may be calibrated to read directly the tension between the neutral point of the transformer A and earth, and, in cases of dynamometric or ferro-dynamic instruments, their sensitiveness may be varied by short-circuiting a resistance in series with the coil connected to the transformer C. The pressure transformer C in the earth connection of the neutral point of the transformer A may be placed by a current transformer, in series, if desired, with a choking coil, the instruments used then being the usual Ferraris, dynamometric or other instruments for measuring power or the wattless component of power.
Patent GB-461006-A (GB)
Title: Production of coloured photographic pictures
IPC: G03C7/30
Filed: 1935-07-05
Abstract: 461,006. Colour photography. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) July 5, 1935, No. 19269. Drawings to Specification. [Class 98 (ii)] In a process of the kind in which multicolour pictures are produced by direct exposure in a camera or by copying, on multilayer material comprising silver halide emulsion layers separated by one or more colour filter layers stable to the developing and fixing baths, and in which the partial colour records are developed, fixed, bleached to silver halide, and then converted into dyestuff images, one or some of the developed, fixed and bleached silver images are again exposed separately to monochromatic light in such wise that the filter or filters confine the light action to the particular halide layer to be exposed, and are not removed until the exposed silver halide images have been converted into colour images. In an example, a support is coated successively with a red-sensitive layer, red filter, green-sensitive layer, yellow filter, and blue-sensitive layer. The red filter may contain the aluminium lake of the dyestuff from diazotized naphthylamine and 2-oxy-naphthalene-3 : 6-disulphonic acid ; and the yellow filter Fuller's yellow. After exposure, developing, fixing, and bleaching the images to silver halide, the image in the front layer is exposed to blue light and developed to yellow as with 1-para-chlorophenyl-3-methyl- 4-amino-5-pyrazolone; the image in the rear layer is exposed through the support to blue light and developed to blue-green as with dimethyl-para-phenylenediamine and trichlornaphthol ; the filter layers, which have in the previous steps served to prevent the blue light from reaching the image in the middle layer, are decolourized as with sodium hydrosulphite ; the silver is removed from the front and rear images; the middle silver halide image is coloured red by chemical or dye-toning or by exposure and colour development as with thioindoxyl; and the silver image is removed from the middle layer. A modified process is described in which the red-sensitive layer is on the back of the film, and the red filter layer is dispensed with.
Patent GB-405193-A (GB)
Title: Improvements in portable containers for tickets
IPC: G07B3/02
Filed: 1933-07-07
Abstract: 405,193. Ticket containers. BIREKA AKT.-GES., Staaken, Berlin. July 7, 1933, No. 19323. Convention date, July 8, 1932. [Class 106 (iii).] A box-like container for rolls of tickets having a row of tear-off mouthpieces 5, is provided with a removable cover 8 for the mouthpieces adapted to be locked to the container by the lid 2. Extensions 9, 10 of the cover are engaged by the edge of the lid which is secured by the lock 3. In a modification, a depending lip on the cover is also secured by a lock to a flange on the end mouthpiece.
Patent GB-381584-A (GB)
Title: Hasp fastenings for suit and attache cases and the like
IPC: E05B65/50
Filed: 1931-07-06
Abstract: 381,584. Hasp fastenings. CHENEY, C. W., Factory Road, Soho, Birmingham. July 6, 1931, No. 19377. [Class 44.] In a hasp fastening of the kind described in Specifications 323,427, [Class 44, Fastenings, Lock &c.], and 361,567, for an expansible suitcase, the hasp e is held in adjusted position by a spring-pressed pivoted pawl f which engages with ratchet teeth d on the attachment plate a, when the hasp is lowered. The hasp is raised by a strong spring h and a separate light spring g is provided for the pawl.
Patent GB-596537-A (GB)
Title: Manufacture of substituted 5-amino-oxazole-4-carboxylic esters
IPC: C07D263/34
Filed: 1945-07-30
Abstract: Alkyl and aralkyl esters of 5-amino-oxazole-4-carboxylic acids bearing a hydrocarbon substituent in the 2-position are manufactured by causing acylaminocyanacetic esters of the formula ROOC-CH(CN)-NHCO-R1 (wherein R represents alkyl or aralkyl and R1 a hydrocarbon radical) to isomerize by heating them or by subjecting them to contact with an acidic catalyst.  The starting materials may be made from the appropriate isonitrosocyanacetic esters (e.g. ethyl isonitrosocyanacetate) by reduction, e.g. by means of aluminium amalgam or of hydrogen in the presence of a Raney nickel catalyst, followed by acylation, e.g. by treatment in the presence of a base (e.g. sodium bicarbonate) with an acyl chloride (e.g. phenylacetyl, benzoyl or hexen-2-oyl chloride), whereby isomerization may follow immediately unless the formation of any acid during acylation is prevented.  Examples describe the conversion of ethyl a -phenylacetylaminocyanacetate to 2-benzyl-4-carbethoxy-5-amino-oxazole by (1) heating to 100 DEG  C. with phosphorus pentachloride in chloroform; (2) heating on a steam bath with phosphorus oxychloride; (3) dissolving in ethanol and saturating the solution with dry hydrogen chloride at 0 DEG  C.; and (10) simple heating to 160-170 DEG  C.; of ethyl a -benzoylaminocyanacetate to 2-phenyl-4-carbethoxy-5-amino-oxazole by (4) simple heating to 140-150 DEG  C.; (5) heating to 100 DEG  C. with phosphorus pentachloride in chloroform; (6) heating similarly with phosphorus pentoxide; and (7) dissolving in ether and saturating the solution with dry hydrogen chloride at 0 DEG  C.; (8) of ethyl a -hexen-2-oylaminocyanacetate to 2-penten-1-yl-4-carbethoxy-5-amino-oxazole by dissolving in ether and saturating the solution with dry hydrogen chloride in the cold; and (9) of benzyl benzoylaminocyanacetate to benzyl 2-phenyl-5-amino-oxazole-4-carboxylate by simple heating to 160 DEG C.  Benzyl benzoylaminocyanacetate is obtainable by heating ethyl cyanacetate with benzyl alcohol, treating a solution of the resulting benzyl cyanacetate in glacial acetic acid with an aqueous solution of sodium nitrite, reducing the so formed oximino compound with aluminium amalgam, and acylating the product with benzoyl chloride.
Patent GB-578286-A (GB)
Title: Improvements in or relating to the production of cellulose ethers
IPC: C08K5/18
Filed: 1943-11-22
Abstract: The stability of cellulose ethers is improved by incorporating therein an aromatic amine containing at least one naphthyl residue directly linked to another aryl residue through a nitrogen atom. Specified amines are N-phenyl-b  - naphthylamine, N.N1 - di - betanaphthyl - p - phenylene diamine; N-b -naphthyl-m-phenylene diamine, N - phenyl-a -naphthylamine, the N-tolyl a - and b -naphthylamines, N-a -naphthyl-N1-b -naphthyl-p-phenylene diamine and N.N1-di - b  - naphthyl - m - phenylenediamine. Ethyl cellulose and other alkyl celluloses containing up to 6 carbon atoms in the alkyl radicles which are soluble in hydrophobe organic solvents may be treated according to the invention.  The stabilising agent may be incorporated with the ether by forming a solution containing both constituents, or by adding the stabilising agent to the etherifying solution prior to separation of the ether therefrom, or a solution of the stabiliser may be added to a solution of the ether. Alternatively, the ether in solid form may be treated in suspension with a solution of the agent.  The stabilised ether may be precipitated from solution by adding a non-solvent thereto.  The stabilised solution of the ether may be used directly for the manufacture of filaments, foils, moulded articles and coating compositions.  To reduce the development of colour due to oxidation of the stabiliser, subsequent aqueous treatments of the stabilised ether are effected in a neutral or slightly acid medium.  In an example, ethyl cellulose and 1 per cent of its weight of N.N1-di-b -naphthyl-p-phenylene diamine are dissolved in a mixture of benzene and methylated spirit.  The ether and stabilising agent are precipitated by the addition of distilled water, the solvent removed by steam distillation and the ether separated, washed and dried at 90-100 DEG  C.
Patent GB-1317981-A (GB)
Title: Vat dyestuffs their manufacture and use
IPC: C09B1/58
Filed: 1970-04-23
Abstract: 1317981 Coated aluminium foil CIBA-GEIGY AG 23 April 1970 [23 April 1969 5 March 1970] 19531/70 Heading B2E [Also in Divisions C3 and C4] In Example 6, a nitrocellulose laquer containing by weight 40 parts nitrocellulose, 2.375 parts titanium dioxide and 0.125 of a vat dyestuff is milled and then spread onto aluminium foil.
Patent GB-779343-A (GB)
Title: Improvements in and relating to non-emissive grids and methods of preparing the same
IPC: H01J19/00
Filed: 1952-08-01
Abstract: A non emissive grid electrode for a thermionic valve, of refractory metal, is carburized by heating in an atmosphere of a mixture of a non-oxidizing non-decomposing carrier gas and a hydrocarbon vapour at a temperature of 1100 DEG C.-2000 DEG C.  A layer of metal carbide bonds the outer graphite layer to the metal.  The metal is preferably tantalum but may be molybdenum, tungsten, columbium or other metal melting above 2000 DEG C.  The carrier gas is preferably hydrogen but may be nitrogen or argon.  The hydrocarbon may be benzene or a derivative such as carbon tetrachloride may be used; methane and acetylene are also suitable.  The carrier gas is bubbled through the heated liquid hydrocarbon into a chamber containing the grid, or through which the wire for forming the grid is being passed, heated to 1500 DEG C. Layer thickness may be 25-125 micron according to treatment time, up to one hour.
Patent GB-355878-A (GB)
Title: An improved valve
IPC: F24D19/10
Filed: 1930-06-27
Abstract: 355,878. Rotary disc valves. HERRING, E., 22, Keswick Road, East Putney, London. June 27, 1930, No. 19560. [Class 135.] A valve for heating radiators &c. comprises a rotary disc B having a transverse rib b<2> and a semicircular port b<1>, and an operating spindle D having a hollow end with notches d<1> to engage the rib b<2> and a conical shoulder d<4> to make a tight rubbing joint with the conical part e<1> of the valve cover E. A spring d<3> is housed within the hollow end of the spindle and presses upon the transverse rib b<2>. The valve seating a<1> has a corresponding semicircular port a<4>. The handle F is provided with a projecting finger which coacts with limit stops on the valve casing A.
Patent GB-381936-A (GB)
Title: Variable pitch screw propeller
IPC: B64C11/42
Filed: 1931-07-07
Abstract: 381,936. Screw propellers. SPINA, A. A. LANZEROTTI-, (Representative of SPINA, E. LANZEROTTI-), 67, Prebend Gardens, Stamford Brook, London. July 7, 1931, No. 19584. [Class 114.] The blades of a variable pitch propeller are mounted on trunnions or spigots on the boss and the root of the blade has a thread engaged by a screw thread on a member slidable on the trunnion and having other threads of different pitch, which engage a rotatable nut operable for changing the pitch. The trunnion 1 carries a sliding sleeve 3 upon splines. This sleeve has steep and shallow screw threads 4, 5, the steep thread 4 engaging a threaded member 6 forming part of or attached to a sleeve 7 on the blade root. The shallow pitch thread 5 engages a rotary pitch adjusting sleeve 20 which extends inwardly and carries a bevel wheel 23; the bevel wheels at the root of each blade mesh with a common bevel wheel 24 which carries a pinion 26 adapted to be engaged by sliding rack control rods 29. As an alternative, the sliding control may comprise an hydraulic piston and rod within the hollow propeller shaft, links connecting such rod with pins on the main bevel 24. In the assembly thrust races and journal bearings are provided for the moving parts. Specification 295,813, [Class 114, Ships &c., Propelling &c.], is referred to.