baber/WOPTO huggingface dataset:
Patent GB-298398-A (GB)
Title: Improvements in or relating to railway permanent-way chair keys
IPC: E01B9/58
Filed: 1927-11-25
Abstract: 298,398. Stanton Ironworks Co., Ltd., and Wilkinson, A. Nov. 25, 1927. Chair keys are retained by a strip a of spring steel having a hook a<2> with a free end a<2> which extends, when unstressed, into the key space, being outwardly displaced by the key d as it is driven in. The extreme end of the strip is shaped to increase the grip on the key with any tendency for the key tc. creep back. The key is grooved at d<1> to pass that part of the device engaging the chair b. The hook end may be positively driven into wooden keys, but with metal keys engages a series of teeth formed in the groove d<1>.
Patent GB-469640-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25D23/00
Filed: 1936-11-20
Abstract: 469,640. Igniting gas burners of refrigerating-apparatus. ELECTROLUX, Ltd. Nov. 20, 1936, No. 31832. Convention date, Dec. 7, 1935. [Class 75 (iii)] [Also in Group XIII] In absorption refrigerating - apparatus comprising a boiler 10 in heat conductive relation with a flue 11, 14 adapted to be heated electrically or by gas or liquid fuel, the flue is so dimensioned that, in the case of gas heating, the burner 17 can be ignited by a flash-back through the flue from a flame applied to the upper end of the flue. The upper part 14 of the flue is preferably supported removably on the fixed lower part 11. With a built-in cabinet 13, as shown, the bent extension 14 extends to the front face. In the case of a free-standing cabinet the part 14 is straight and extends up to the level of the top of the cabinet 15.
Patent GB-829423-A (GB)
Title: Improvements in electron discharge devices
IPC: H01J21/14
Filed: 1956-10-19
Abstract: 829,423. Thermionic valves. GENERAL ELECTRIC CO. Oct. 19, 1956 [Oct. 21, 1955], No. 31923/56. Class 39(1). In a tube having beamforming electrodes 24 which confine the beam between the screen grid 23 and the anode 16, the anode has means such as the embossments 25, 26 extending into the space charge region to vary the field configuration therein so as to suppress spurious oscillations and substantially eliminate the negative transconductance region. The anode may consist of two similar members 27, 28 joined together along wings 19, 19<SP>1</SP> acting as cooling fins. It is stated that this construction gives a more rounded configuration to the " knee " of the tube characteristic, and Fig. 3 (not shown) compares graphically the characteristics of the present tube with prior tubes.
Patent GB-175381-A (GB)
Title: Improvements in and relating to means for measuring electric current and more particularly for measuring the output of electric transformers
IPC: H01F38/32
Filed: 1920-11-11
Abstract: 175,381. British Thomson - Houston Co., Ltd., Clinker, R. C., and Holbrook, H. S. Nov. 11, 1920. Transformers. -- The output of a transformer is measured by reading the secondary current on instruments connected to the input side, a reactor being connected in parallel with the primary winding and so designed that the no-load current of the primary winding will balance the reactor current. As shown, a current transformer in series with the primary winding 1 of the main transformer has its secondary winding 8 connected to an ammeter 7, and a potential transformer in parallel with the primary winding of the main transformer has its secondary winding 5 connected to a reactor 6 built of the same quality steel and in the same proportions as the main transformer, the ammeter 7 being also in circuit with the secondary winding 5 and the reactor. On no load, the current from the primary winding of the main transformer balances the reactor current, and on load the increased current in the primary winding produces a deflection on the ammeter which is thus proportional to the secondary load current. A wattmeter may be used in place of the ammeter, its potential coil being connected on the output side of the transformer. Taps may be taken from the primary winding of the main transformer instead of employing a potential transformer. The apparatus may be adapted for use with threephase transformers.
Patent GB-1025912-A (GB)
Title: Improvements in or relating to ªÊ-carboxybenzenesulfonic acid derivatives
IPC: C07D279/02
Filed: 1963-09-06
Abstract: The invention comprises derivatives of saccharine of the formula <FORM:1025912/C2/1> wherein X is hydrogen or a sulphamoyl group and R is an alkyl, aryl, substituted aryl, aralkyl, biphenylyl, cycloalkyl or cycloalkyl-alkyl group of up to 12 carbon atoms, and their preparation by reacting the corresponding 2-unsubstituted chloro-saccharine with a reactive ester of an alcohol of the formula RCO. CH2OH, e.g. the halide, in the presence of a condensing agent, e.g. sodium hydride.  Suitably R may be an alkyl, phenyl, chloro-, bromo-, nitro-, methoxy-or methylenedioxy-substituted phenyl, cyclopentyl or biphenylyl radical.
Patent GB-987477-A (GB)
Title: Movable support for the transportation of materials at varying transportation velocity
Inventor: FAARBORG CHRISTIAN KIERULFF
IPC: A21C15/00
Filed: 1962-08-21
Abstract: 987,477. Endless conveyers. I/S KAHLER & CO. Aug. 21, 1962, No. 32086/62. Heading B8A. Continuous sheet material such as a loosely coherent web of fibre is fed by an endless conveyer 1 running at a constant speed on to an endless conveyer 10, the speed of which varies cyclically between the speed of the conveyer 1 and the speed of a third conveyer 11. A slide 24 carrying rolls 4 and 5 of the conveyer 1 and rolls 8 and 9 of the conveyer 10, is reciprocable to the left at the same speed as the conveyer 1. Later in the cycle of the apparatus it is returned to the right by the action of a jack 27. In operation, the material is fed by the conveyer 1 under a cutting apparatus 28 carried by the slide 24. When the speed of the slide equals the speed of the belt 1 the cutter severs a piece of material. The belt 10, which up to this time has been running at the speed of the belt 1, is accelerated to the speed of the belt 11. This separates the piece from the main web and feeds it to a press 41 above the belt 11. The latter is brought to a standstill when the press 41 is operated. The belt 10 may be driven by respective ratchet drives from the drives of the belt 1, 11 so that it is driven by whichever of the belts 1, 11 is running at the faster speed.
Patent GB-204240-A (GB)
Title: Improvements in and relating to economizers for steam boilers
IPC: F22D1/10
Filed: 1922-11-23
Abstract: 204,240. Robertson, T. E., (Power Specialty Co.). Nov. 23, 1922. Water-tube boilers. - In a water-tube boiler having an economizer arranged below the last pass of the furnace gases, the passage of gases through the economizer and therefrom to the flue is constricted and a suction fan or the like is provided to induce a draught in the passage. The gases from a horizontal tube boiler flow downwardly over the tubes of an economizer 6 placed between the bridge wall 1 and a rear wall 3. The gases are drawn by a fan 12 through restricted passages 10 opening into the sides of the fan. The economizer is cleaned by steam or air jets from nozzles inserted through openings 8 in the rear wall 3. Doors 13 afford access to the passages 10 for cleaning purposes.
Patent GB-1526982-A (GB)
Title: Method and apparatus for the high output production of cover caps provided with seals
IPC: B21D51/46
Filed: 1976-08-03
Abstract: 1526982 Making container caps ALCA SA and J TEILLAC 3 Aug 1976 [5 Aug 1975] 32202/76 Heading B8T [Also in Division B3] Caps are stamped out of strip material 1, indented and embossed, and then drawn by cooperation of tools 12 and 17, 13 and 18, and 14 and 19 respectively. Each cap is then delivered by gravity to a peripheral recess 9 of rotating drum 8 together with a sealing gasket, delivered via shoot 20, and push rod 21 controlled by cam 23 causes engagement of gasket and cap. The assembly is then released into container 27. Guide means for the caps may be provided between the tools 14 and 19 and the drum 8, and a plurality of caps (e.g. 3) may be formed simultaneously from one strip, in which case a plurality of sets of co-operating tools are arranged in parallel and the caps are simultaneously delivered to consecutive recesses 9.
Patent GB-538087-A (GB)
Title: Improvements in and relating to mechanical draught systems for boiler furnaces
IPC: F23N3/02
Filed: 1939-12-14
Abstract: 538,087. Forced draught systems. HOWDEN & CO., Ltd., J., and NELSON, W. Dec. 14, 1939, No. 32214. [Class 51 (i)] A forced draught system for boiler furnaces comprises at least one fan 4 which supplies atmospheric air to a closed stokehold or boiler casing and which maintains the air pressure within the stokehold or boiler casing at an amount which is equal to or slightly in excess of the net gas resistances on the gas side of the boiler plant and at least one other fan 5 which draws air for com bustion from the stokehold or boiler casing and delivers the air to the boiler plant at a pressure which is equal to or slightly in excess of the combined total net resistances on the air and gas sides of the boiler plant. Specification 459,087 is referred to.
Patent GB-713312-A (GB)
Title: Portable spraying apparatus
IPC: A01M7/00
Filed: 1952-12-19
Abstract: 713,312. Crop sprayers. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Dec. 19, 1952 [Dec. 21, 1951], No. 32226/52. Class 69 (3) A portable spraying apparatus comprises, in combination, an I.C engine 7, a fan coupled thereto by means of a flexible shaft 5, and a liquid atomizer 3 disposed on the discharge side of the fan and provided with one or more flexible supply lines, the arrangement being such that the section comprising fan and atomizer can be moved independently of the I.C. engine. The atomizer is fed with liquid from a tank 13 through a flexible line 14, and pressure gas is delivered from the engine cylinder 8 to the tank and also to the atomizer through a flexible line 15. In an alternative embodiment the atomizer comprises a rotating cup in front of the fan and driven by the fan shaft, and liquid which is supplied to the cup is thrown off the cup edge and dispersed by the fan. Alternatively, liquid only is fed under pressure to the atomizer via a flexible line.
Patent GB-224749-A (GB)
Title: Improvements in electric heating apparatus
IPC: H05B3/14
Filed: 1923-12-27
Abstract: 224,749. Goodman, H., and Hancock & Co. (Engineers), Ltd. Dec. 27, 1923. Resistance grids.-An electric heater comprises a metal casing 5 containing a series of carbon rods 1 the ends of which are cemented within cavities in graphite or other blocks 2 separated by insulating plates 3 of mica or similar material, the remaining space 4 being filled with a refractory insulator such as carborundum. A mica or other insulating cylinder 8 is provided between the two circular sets of rods. When there is only one set of rods the interior may be hollow, a second interior, concentric metal casing being provided. The rods may also be arranged in one plane so that a flat casing is formed. Specification 190,222 is referred to.
Patent GB-882875-A (GB)
Title: Production of moulding compositions
Inventor: BROWN ROBERT GEORGE
IPC: B26D1/38
Filed: 1959-09-23
Abstract: 882,875. Producing glass fibre-reinforced nylon moulding granules. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 10, 1960 [Sept. 23, 1959], No. 32356/59. Class 87(2). Glass fibre-reinforced moulding granules are produced by extruding nylon over at least one continuous strand of glass fibres and converting the extrudate into granules by making a plurality of transverse cuts, the extrudate being fed between a solid surface and a rotating toothed roller whereby it is subjected at spaced intervals along its length to a pinching action which deforms the nylon coating sufficiently to cause the glass fibres to be gripped within the granules. A combined pinching and cutting action may be obtained using the apparatus of Fig. 1 in which the extrudate 1 is fed by urger rolls 2, 3 to an anvil 6 over which a toothed wheel 4 rotates in an anticlockwise manner with its teeth 5 having a close working clearance with the surface of the anvil 6. Alternatively the extrudate may be pinched and cut in separate operations as shown in Fig. 2, being passed between pairs of contra-rotating rollers 2, 3 and 4, 5, one of each pair of rollers being toothed and one smooth, so that indentations lying directly opposite each other are made on opposite sides of the extrudate. A rotary cutter 7 cuts the extrudate at each indentation or, if granules of more elongated shape are desired, at for example every second, third or fourth indentation. Preferably, the extrudate is quenched and cooled to substantially room temperature before the pinching action is applied but the pinching action may, if desired, be applied to the quenched extrudate before it has cooled to room temperature. The granules are suitable for conversion in to shaped articles by injection moulding, which articles are characterised by a high rigidity at elevated temperatures. Articles of optimum tensile and impact strength are obtained when the glass fibre content is between 5% and 40% by weight of the granules.
Patent GB-137069-A (GB)
Title: Method of and Apparatus for the Reception of Electro-radiant Energy.
Inventor: FREDERICK AUGUST KOLSTER
IPC: G01S1/02
Filed: 1919-12-24
Abstract: 137,069. Kolster, F. A. March 31, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Aerials and like receiving conductors; bearings and distances, determining wirelessly. Signals are directionaliy received by a vertical flat coil which is connected to a tuning condenser to form a closed circuit, which need have no earth connexions; or two or more such coils at an angle to one another may be used. Such a circuit has negligible distributed inductance and is capable of very sharp tuning. The ratio of inductance to capacity should be high. The coil may be comparatively small -a coil of 11 foot side is stated to have been successful in receiving very longdistance signals-and its turns may be arranged in any of the forms shown in Fig. 1<a>. With two rotatable coils A, B, Fig. 1, arranged at an angle, and connected in series to the tuning-condenser C, Fig. 2, the effect on a detector E is nil when the transmitting station is in the direction b bisecting the angle between the two coils. In the modified circuit shown in Fig. 4, the coils A, B are in circuit with separate tuning-condensers C<2>, C<3>. As shown in Fig. 5, each coil A, B encloses and is connected to a metal gauze capacity area, and the detector E<1> consists of a double thermionic valve. Instead of the coils A, B being rotatable, they may be fixed and connected through tuning condensers C, C<1> to the fixed coils a<1>, b<4>, Fig. 9, of a radio-goniometer transformer, having a rotatable coil c<1> connected' to the detector E. By means of two pairs of coils at the ends of a base-line it is possible to determine the distance as well as the direction of a transmitting station, as indicated in Fig. 7. The detector E at the middle point of the base-line can be connected by a switch t to either pair of coils. The coils may be rotated by remote-control devices 1, 2, or the positions of the pointers b, b<1> may be repeated to pointers b<2>, b<3>, by mechanical connexions v, v'. Any of the directional arrangements described can be used for eliminating disturbances by adjusting the receiver so as to be deaf to signals from the direction of the disturbing station.
Patent GB-629614-A (GB)
Title: Improvements in or relating to photo-copying machines
IPC: G03B27/22
Filed: 1946-10-31
Abstract: 629,614. Photographic contact-printing apparatus. OZALID CO., Ltd., and BLICK, F. Oct. 31, 1946, No. 32396. [Class 98 (ii)] [Also in Group XXIV] Relates to contact-printing apparatus of the kind comprising a hollow transparent cylinder with its axis horizontal, a light source within the cylinder, guide rollers disposed around the cylinder and rotatable about horizontal axes, and an endless band carrier mounted on the guide rollers and embracing the major part of the outer surface of the cylinder but allowing a feed-gap for insertion between the carrier and the cylinder of a transparency sheet to be copied and a light-sensitive sheet to be exposed. The transparent cylinder is slung cradlefashion by the endless carrier, the guide rollers above the axis of the cylinder are carried by a hinged frame pivoted at one side of the cylinder to uncover the upper portion therof, and the frame has means operable on movement of the frame to maintain tension in the carrier. The carrier preferably comprises a number of parallel endless belts. As shown in section, Fig. 3, a mercury-vapour lamp 22 is resiliently and detachably supported within a glass cylinder 34. Parallel endless belts 46 pass around rollers 35, 36, 48, 49 and the cylinder 34 to engage the greater part of the surface of the latter. The roller 35, to which a drive is imparted, has end hubs which engage and partially support and drive the cylinder 34; they may be made of resin impregnated fibrous material, at least on the engaging surface. Rollers 35, 36 rotate in bearings in a main frame, but rollers 48, 49 have end bearings in a subframe 55 pivoting about a rod 57 to swing into an inoperative position (dotted lines) for access to the cylinder 34. In this position, the belts 46 may engage a tube 58 fitting loosely on the rod 57. Slack in the belts, is thus minimized, and is taken up by mounting the ends of the shaft 51 of the roller 49 in blocks 62 sliding in slots 63 in the ends of the subframe 55, and urged to tighten the belts by a screwadjusted spring 64. Fingers 69 on the tube 58 project between the belts to keep them in correct alignment. In operation, the roller 35 is driven by an electric motor through an infinitely variable speed gear-box, and drives the belts and the cylinder 34 so that the latter rotates anticlockwise. A light-excluding member 103 may carry a felt wiper 104 for the inner surface of the cylinder 34. Sensitive paper, which may be supplied from a roll 100, is fed with the matter-to be copied over a tray 95 and under a resilient finger-guard 102 into the apparatus, where they are carried round between the belts 46 and the cylinder 34. On emerging they are stripped from the cylinder by resilient prongs 90 on a comb 101 and guided out by a tray 91. The rollers and cylinder may be enclosed by a metal frame extending between housings for the driving motor, gearbox, and transformers for the lamp.
Patent GB-862222-A (GB)
Title: The preparation of dihaloboranes, diaminoboranes, boronic acids and esters thereof
IPC: C07F5/02
Filed: 1959-09-24
Abstract: A monoarylboron dihalide is made by reacting boron trichloride or tribromide with an aromatic hydrocarbon which may be substituted by alkyl, aryl or halogen at an elevated temperature in the presence of an aluminium tri- or tetra-chloride, zirconium tetrachloride, gallium trichloride or chromium trichloride catalyst.  The monoarylboron dihalide may be hydrolysed to obtain a monoarylboronic acid, or may be subjected to alcoholysis or aminolysis to obtain a dialkyl arylboronate or an aryl diaminoborane respectively.
Patent GB-762735-A (GB)
Title: Apparatus for detecting fluid flows and leakages
IPC: G01M3/24
Filed: 1954-11-11
Abstract: 762,735. Stethoscopes. PIOCHET, J. Nov. 11, 1954 [Nov. 16, 1953], No. 32658/54. Class 81(2) [Also in Group XXXIX] A stethoscope for detecting the flow of liquids comprises a tubular probe 1, a diaphragm 4 and either electric or acoustic means, or both, for enabling the diaphragm vibrations to be heard. The diaphragm is engaged by a circular flange 3 on the probe and one or more circular rims 6, 7 on a bearing mass 5. The bearing mass is urged against the diaphragm by a screw plunger 12. The diaphragm tension can be increased further by a second plunger 16 mounted within the first, the second plunger engaging the diaphragm centrally. The bearing mass 24, Fig. 2, is a permanent magnet and a coil 25 on the diaphragm transmits electrical vibrations to an amplifier 26 which feeds earphones 28. Holes 18 in the bearing mass and fittings 19, 20 enable conventional stethoscope tubes to be used. The casing is attached to the probe by means of a rubber sleeve 8, 10. The outside edge of the diaphragm is held by a felt lining 22. The diaphragm may be corrugated and may have zones of different thicknesses.
Patent GB-506789-A (GB)
Title: A new or improved first aid appliance
IPC: A61F17/00
Filed: 1937-11-26
Abstract: 506,789. First-aid appliances; knives; containers. BANERJEE, R. Nov. 26, 1937, No. 32675. Convention date, Nov. 27, 1936. [Class 81 (ii)] [Also in Groups XIV and XVII] An appliance, substantially in the form of a fountain pen, for housing articles and materials 'for firstaid, comprises a barrel - shaped container B, Fig. 2, and one or more similar containers C, D, E, the containers being screwed together such that each is closed by that preceding it; the container B is closed by a cap H and covered by a cap A, similar to a fountain-pen cap, which may house bandages or the like. Containers B and C have nozzles G, F and may contain tincture of iodine or tincture of benzoin; containers D, E may contain creams or the like. A clip J, Fig. 4, hinged to the cap A, may be reversed as shown to permit use of a blade J<1>, or a probe J<2>, or both, hinged within it.
Patent GB-321327-A (GB)
Title: Improvements in and relating to electro-magnetic vibratory devices for acoustical instruments
IPC: H04R11/00
Filed: 1928-11-08
Abstract: 321,327. Wireless Music, Ltd., and Trouton, M. Nov. 8, 1928. Magnetic instruments. -An electromagnetic vibratory device, more particularly for use as the motor element of a, loudspeaker, comprises an armature mounted for vibration about an axis and means whereby the distance from this axis of the path of minimum reluctance through the armature is caused to change as the armature vibrates. In the construction shown, a vibrator 1, comprising an armature portion extending between points a, b and co-operating with pole pieces 2, is carried upon a cross-bar 3 as described in Specification 305,429, and is slotted as shown at 4. A non-magnetic member 5 having an upstanding portion 6 is fixed to the pole pieces 2 and a magnetic strip 7 constituting a flux guide is secured along the upper inclined surface of the portion 6. The two prongs of the armature are connected by a bridge piece 8 which carries the diaphragm actuating rod 9. The flux between the pole pieces will tend to crowd into the overlapping area 10 between the guide 7 and the armature since here the reluctance is much smaller than elsewhere and, on account of the inclination of the guide, the centre of the area 10 will move towards the cross-bar 3 as the armature approaches the pole pieces. The point of action of the resultant magnetic force on the armature will, by virtue of this movement of the area 10, move in the same direction and this effect due to the flux guide may therefore be used to give proportionally between the current fed to the. coils surrounding the pole pieces and the resulting displacement of the armature. If desired, the flux guide may be left free to vibrate, may be connected to a separate diaphragm and may have a different natural frequency from that of the armature. Specifications 293,131 and 299,537 also are referred to. According to the Provisional Specification the flux guide may be mounted on a pillar carried by the base of the movement.