baber/WOPTO huggingface dataset:
Patent GB-987391-A (GB)
Title: Improvements in or relating to furnace tuyeres
Inventor: MOULDS DONALD
IPC: F27B1/16
Filed: 1964-03-18
Abstract: 987,391. Furnace tuyeres. STANTON & STAVELEY Ltd. March 18, 1964, No. 11372/64 Heading F4B. A furnace tuyere having a cooled face open to the exterior of the furnace comprises a blast pipe 9 encircled by a skirt 11 continuous with the outlet end of pipe 9, the tuyere being formed as a body of revolution generated by a generally U-shaped curve rotated about a fixed line. The surface of the annular space 12 is sprayed with liquid coolant by means of pipes 15 which are fixed to and supplied by arcuant header tubes 13. The pipes 15 are set at varying angles to ensure distribution of the coolant over the surface of the space 12. The tubes 13 are held in position by stays 16 which are fixed to a clamping ring 5. The coolant drains off from space 12 into the drain 17. The projection of the tuyere into the furnace may be varied by interchange of space ring 6 and flange 19. The tuyere is held in position by a skirt 8 with flanges 7.
Patent GB-587583-A (GB)
Title: Improvements in ultra high frequency translation devices
IPC: H03D9/06
Filed: 1944-06-15
Abstract: 587,583. 'Wireless receiving apparatus. WESTERN ELECTRIC CO., Inc. June 15, 1944, No. 11477. Convention date, April 19, 1943. [Class 40 (v)] An ultra-high-frequency device comprises a crystal rectifier for translating signal waves in an input circuit into signal waves in an output. circuit, and means for applying to the crystal rectifier a direct voltage of such critical polarity and magnitude as to reduce the noise currents in the output circuit while the magnitude of the signal currents therein remains unaffected. Fig. 1 shows the invention applied to the input and frequency changing stages of a receiver in which microwave energy is received by a horn 7 and fed through a slot 5 to a concentric line comprising an outer conductor 2 and inner conductor 3, 4, both connected to a conducting block 29. A concentric line 14, 15 serves for the introduction of beat-frequency energy from a source 12 by way of an adjustable probe 16. The combined energy is fed to the spring contact 9 of a silicon detector 10 which is connected to outer conductor 2 by a high-frequency byepass condenser 11. Intermediate frequency energy is taken through line 18, 19 and condenser 30 to subsequent stages 24. Line 18, 19 is extended and the end terminated in disc 22 and part 21 forming a condenser such as to produce an effective short-circuit for intermediate frequency waves. Also the length of the line 18, 19 is chosen to give a nodal point at 21, 22. This enables a direct bias voltage from source 27 to be applied at this point to the crystal without interaction with the intermediate frequency circuit. Curves are supplied (Figs. 3-7, not shown) to show that the application of a small positive voltage having a critical optimum value of about .2 volts results in a minimum value for the noise currents without substantially reducing the signal output. The beat - frequency power is increased to its optimum by adjustment of the probe 16. The inner conductor 3, 4 is made of parts 3, 4 having different thicknesses so as to'present to the rectifier an impedance such as to support harmonics of the beat - frequency waves. Thereby selecting the lengths of 3 and 4, the harmonics may be brought into phase with the fundamental, thus increasing the power. Detailed constructional forms of the apparatus are shown in Figs. 8-10 and 12 (not shown). Fig. 11 shows a suitable construction of the crystal detector. A silicon crystal 47 is mounted on a screw-threaded end 74 of a metal block 48 which is screwed into a ceramic tube 91 to the other end of which is screwed a plug 46 carrying a metal spring contact 45. Specification 551,209 is referred to.
Patent GB-114831-A (GB)
IPC: H01H85/38
Abstract: 114,831. Nielsen, A. April 12, 1917, [Convention date]. Fusible cut-outs. - A high-tension fusible electric cut-out comprises an inner part b provided with a deep screw-thread by which it is screwed into the outer part E so that a spiral channel a is formed to accommodate the fuse wire b which is secured at each end bv contact screws c, d. The spiral channel is filled with an insulating - liquid or powder. An iron rod k passes through the inner part B for strengthening purposes. and co-operates with an iron sleeve surrounding the fuse to exert a choking action on the excess current carried by the fuse.
Patent GB-1302594-A (GB)
IPC: B60N3/04
Filed: 1970-03-10
Abstract: 1302594 Car mats SCHAEFFLER TEPPICHBODEN GmbH 10 March 1970 11523/70 Heading A4S [Also in Division B5] A lining component for motor-vehicle bodies which is permanently deformed three dimensionally by heating and subsequent pressing comprises a textile pile fabric top layer, the pile forming yarns of which are threaded into a supporting fabric composed of fibres of a synthetic plastics material, e.g. polyester or polyamide fibres, which is provided with a back coating of thermoplastics plastics material, e.g. polyethylene. The supporting fabric may be provided with a non-slip finish comprising a thermoplastic plastics dispersion. The pile threads may be in the form of closed loops or may be cut open. After application of the backing coating to the fabric heating may be effected at a temperature above their fusing temperatures, the material shaped in a press and cooled.
Patent GB-591702-A (GB)
Title: Improved apparatus for electric arc welding
IPC: B23K9/073
Filed: 1945-05-07
Abstract: 591,702. Automatic regulation of supply systems for welding arcs. LEGG, C. R. E., and FOSTER TRANSFORMERS & SWITCHGEAR; Ltd. May 7, 1945, No. 11561. [Class 38 (iv)] In an electric arc welding system fed from a supply transformer 5, a variable regulating inductor 6 'in series with the electrode 4 and workpiece 3 is provided with an additional winding or windings 15 which are energized with direct current proportional to the arc voltage from a full wave metal rectifier 16 connected across the electrode and work. The inductor may comprise a three limiter laminated core carrying A.C. winding 17 and D.C. windings 15 and in order to provide an over-riding control for adjusting the welding current, the core may be provided with an adjustable air gap or tappings on the A.C. winding.
Patent GB-833530-A (GB)
Title: Improvements relating to the operation of glow discharge vessels
IPC: H01J37/32
Filed: 1957-04-09
Abstract: 833,530. Discharge apparatus. DORTMUND-HORDER HUTTENUNION A. G. April 9, 1957 [April 10, 1956], No. 11561/57. Class 39(1). [Also in Group XXXV] A glow discharge vessel for treating workpieces comprises a cylindrical container 10 having a lid 11 fastened to a flange 12 by bolts 13 and sealed by a gasket 14. The workpiece 15 which forms one electrode is secured through members 18-20 to a flange 17 having a terminal 45 and is located by clamps 23, 24 and sealed by insulated gaskets 25, 26 to the lid 11, from which it is spaced by a gap 22. The other electrode 27 is connected to a terminal 46 and is supported by a member 29 and insulated by a sleeve 33 from the container 10. An auxiliary electrode 32 is similarly mounted by a member 31 and a sleeve 34. Two pipes 35, 36 are provided for evacuating and filling the container with gas. Specifications 806,637 and 819,604 are referred to.
Patent GB-473983-A (GB)
Title: Plotting device particularly for use with sight testing screens
IPC: A61B3/024
Filed: 1936-04-23
Abstract: 473,983. Copying drawings to a reduced scale. BOWING & CO., Ltd., T., and RICHARDSON, R. B. April 23, 1936, No. 11635. [Classes 97 (i) and 97 (iii)] Apparatus for copying to a reduced scale a map of the ocular blind spot areas marked on a Bjerrum screen comprises a holder 2 for a sheet of paper, a radius arm 1 rotatably carried by the holder 2 and provided with two sets of markings M, m, corresponding to the scale of the map to be charted and to that of the copy to be prepared therefrom, and means to enable the holder 2 to be fixed to the screen. As shown, the circular holder 2 is secured to a cruciform frame 3, 4, the longer arms 3 of which are provided with sockets 31 to engage lugs on the screen, and the arm 1 is pivoted at 9 on the diametrical bridge-piece 8 of an annulus 7 hinged to the holder 2 at 10 and adapted to secure the paper in position. In a modification, the bridge-piece 8 is omitted and the arm 1 is pivoted underneath the holder 2 and provided with an extension overlying the paper.
Patent GB-469347-A (GB)
Title: Method of re-melting and refining magnesium and light metal alloys containing magnesium
IPC: C22B26/22
Filed: 1936-04-23
Abstract: Magnesium and light alloys containing magnesium are first melted with a thinly fluid non-inspissated flux and when both the metal or alloy and the flux are completely molten, the melt is stirred and an inspissating agent added.  The inspissating agent may be added as such or as a flux containing a sufficient proportion of inspissating agent for the latter to have an inspissating effect on the thinly fluid flux.  Thereafter, a protective cover of inspissated flux may be applied over the metal or alloy and the latter heated to substantially above pouring temperature, i.e. to above 800 DEG  C. The thinly fluid flux may be anhydrous carnallite or mixtures still richer in potassium chloride or anhydrous magnesium chloride with or without additions of chlorides other than potassium chloride and tending to lower the melting point.  The inspissation may be effected by mixtures of magnesium chloride with magnesium fluoride, calcium fluoride and/or magnesium oxide or of calcium chloride with magnesium fluoride.  The fluxes may be merely mixtures of the ingredients or the ingredients may be preliminarily melted down together and the mass crushed after solidification.  The fluxes may also comprise additions which are reduced by the melt to enter the metal or alloy, or, when an alloy is treated, salts of a metal already present in the alloy.  Specifications 219,287, [Class 82 (i)], and 459,912 are referred to.
Patent GB-527658-A (GB)
Title: Improvements relating to stackable chairs
IPC: A47C3/04
Filed: 1939-04-18
Abstract: 527,658. Chairs. PEL, Ltd., and HENDERSON, L. B. April 18, 1939, No. 11687. [Class 52 (ii)] The frames of chairs adapted for nesting comprise two main parts, one part forming front legs a, seat support b, back rest c and back cross bar d, and the other forming a base e, back legs f and a top cross bar g on which the seat-frame part b rests. The lower ends of the front legs are splayed outwards to join the base e ; the base frame being wider than the seat frame to facilitate nesting. Alternatively the base frame members e may be turned inwards to meet the legs a, or the legs a may be continued to form part of the base frame. A cross member h may be united to the front legs or to the seat support. The seat and back rest proper may be formed of hemmed canvas &c. sheets with wires in the, hems secured to the frames by screws m. The frames may be of metal tube, rod or strip, or of wood.
Patent GB-236009-A (GB)
Title: Improvements in or relating to fire-bridges for steam boiler furnaces
IPC: F23M3/00
Filed: 1924-05-12
Abstract: 236,009. Dupont, E. May 12, 1924. Fire-bridges; fire-bars.-A furnace fire-bridge is made up of separately-removable curved bars 10 supported at their lower ends by the engagement of a recess 25 over a projection 26 on the portion 9 of the dead-plate 7, and at the upper ends by the engagement of lugs 13 in a groove 14 formed in the upper edge of a vertical plate 12. The bars 10 are formed, along a portion of their length, with recesses the sides of which are corrugated as shown in Fig. 2, and are also provided with notches which, when the bars are in position form air admission apertures 16. A horizontal bar 17, operated by a rod 22 and pivoted lever 19, passes through a slot 18 in the plate 12 and by engagement in notches 24, cut in the ends of the downwardly-tapering webs of the bars 10, secures the latter in position. The dead-plate 7 is formed with a projecting part 6 serving to support the rear ends of the separate grate-bars 3 which are wedge-shaped in cross-section and, as shown in Fig. 2, waved or sinuous in the longitudinal direction.
Patent GB-400645-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/52
Filed: 1932-04-25
Abstract: 400,645. Brakes. BOUGHTON, E. B., Brock House, Langham Street, London, and VESTRAUT, G. VAN, 23, St. Mary's Road, Leamington Spa. April 25, 1932, No. 11849. [Class 103 (i).] In an adjustable stop for an internal brake frictionally mounted by spring pressure on a fixed support and having a lost motion connection with the brake shoe so that the stop may be moved nearer the drum when there is excessive movement due to wear in order to reduce this movement to normal, the stop may be moved manually to withdraw the shoe from the drum, for brake drum removal &c., but the stop cannot be moved in the reverse direction to leave the shoe in contact with the drum. In an arrangement in which the adjustment is automatic a resilient dished washer 57 is gripped between the brake back plate 12 and a flange 13 of a spindle 51 by means of a nut 15, and has a slot 17 engaging with lost motion 19 a pin 55 fixed to the brake shoe. A spring 58 also bears against the washer 57 and the back plate. On excessive movement of the shoe, on brake application the washer 57 is shifted by the pin 55 and the return movement of the shoe is limited. The friction between the parts of the stop and the strength of the return spring is such that the shoe can be shifted away from the drum by manually turning the spindle 51, with the assistance of the brake shoe return spring but the shoe cannot be shifted towards the drum by turning the spindle. Alternately washer 57 may be fixed to spindle and the end of the spindle is shaped to take a C-spanner &c. which can turn the spindle only in one direction. In order to provide a smaller brake shoe clearance than is possible with an automatic adjusting stop, the modification shown in Figs. 3 and 4 also comprises a spindle 52 extending through the spindle 51 and having with this spindle a lost motion 56 which is smaller than the lost motion 19 and a projection 54 adapted to engage pin 55. The spindle 52 may be turned manually by a handle 53 to move the shoe against the drum by means of the pin 55 the spindle 51 will also be moved. When the handle 53 is released the shoe return spring will take up the lost motion 56. In a further modification an entirely manually arrangement is shown in which a part of the washer 57 is cut away so that it has no cooperation with the pin 55, also the washer 57 is integral with the spindle 51. Additional support is provided by a cylindrical casing 59 for the spring. The spindles 52 of all the brakes concerned may be connected to a single control.
Patent GB-408454-A (GB)
Title: Improvements in and relating to pliers, pincers, shears, forceps and the like
IPC: A61C3/14
Filed: 1933-04-24
Abstract: 408,454. Dental forceps. SHAW, D. M., 7, Manor House, 15, Honor Oak Road, Forest Hill, London. April 24, 1933, No. 11950. [Class 81 (ii).] The crossed lever arms 1 of dental forceps have each a separate axis and are connected together solely by a short link 2 enabling them to be moved forward separately in obtaining a firm grip of the jaws 4 on the object. In the construction shown in Fig. 11 the handles 3 are provided with thumb and finger grips 5, 6.
Patent GB-182967-A (GB)
Title: Improvements in water heating apparatus
IPC: F24H1/30
Filed: 1921-04-26
Abstract: 182,967. Bailey, W. M., and Preston, J. R. April 26, 1921. Internally - fired boilers.-A boiler comprises a plurality of heating-elements, each with a combustion chamber and a water space and each so constructed that two or more can be connected together to form a single unit with a continuous water space common to the elements, so that one or more combustion chambers can be used according to the heating requirements. In the example shown, a gasheated element is mounted on a coal fired element with a combined smoke outlet 22, and the gas fired element is provided with a flue jacket 21 and a firebrick deflector 5. The combustion chamber wall 2 may be integral with the casing 1 or may be separate and attached thereto.
Patent GB-985467-A (GB)
Title: Improvements in or relating to current converter installations
IPC: H02M7/08
Filed: 1963-03-26
Abstract: 985,467. Rectifying. SIEMENS-SCHUCKERTWERKE A.G. March 26, 1963 [March 29, 1962], No. 12015/63. Heading H2F. In a converter installation using semiconductor rectifying elements and comprising at least two converting arrangements whose outputs are in parallel and whose inputs are connected to individual three-phase transformers fed in series from the supply, the conductors feeding the transformers are arranged substantially in a plane and crossed to equalize phase inductances. Additional inductors may be connected in series with some rectifying elements if necessary (Fig. 1, not shown). The arrangement is used for supplying electrolytic baths.
Patent GB-440306-A (GB)
Title: Improvements in refrigerating systems for cooling perishable goods in ships' holds
IPC: A23B4/06
Filed: 1935-04-23
Abstract: 440,306. Refrigerating. HALL, Ltd., J. & E., 10, St. Swithin's Lane, London, and FARMER, J. D., Dartford Iron Works, Dartford, Kent. April 23, 1935, No. 12212. [Class 29] Compression machines ; cold accumulators. - A system for cooling air &c. circulated as a cooling-medium in ships' holds includes a cold accumulator which alone is cooled by the refrigerating machine while the holds are empty and which supplements the machine while a load is being cooled down to storage temperature, and is then cut out of the circuit. In the system shown in Fig. 1, air circulated in a hold 1 by a fan 3 is cooled by a coil 10 cooled by brine circulated through it and through an evaporator tank 7 by a pump 11. A cold accumulator tank 4 is provided with a brine coil 12 connected to the main brine circuit, and valves are provided in the pipe connections, so that when a load is being cooled down a part of the brine may flow through the coil 12 and mix with that circulated directly to the coil 10. As the cold capacity of the tank 4 decreases the flow of brine through the coil 12 may be diminished. In the system shown in Fig. 2, the coil 12 is connected to the gaseous refrigerant circuit of a plant comprising a compressor 16, condenser 17 and brine-cooling evaporator 7, the brine circuit being confined to the evaporator 7, pump 11 and coil 10. While the hold is empty the refrigerant from the condenser 17 is evaporated in the coil 12 to cool the accumulator medium in vessel 4, the vapour being returned to the compressor by a conduit 13 and the evaporator 7 being cut out. When a load is to be cooled down the liquefied refrigerant from the condenser is passed through the coil 12 without evaporation and is thereby intensely cooled before being delivered to the evaporator 7 to cool the brine. The system is provided with valves, as shown, to control the circuit of primary refrigerant. Reference has been directed by the Comptroller to Specifications 180,342, 285,003, [both in Class 29], and 369,465.
Patent GB-337017-A (GB)
Title: A process for the production of polyoses or monoses from cellulose-cellulosic compounds and cellulose-containing materials
IPC: C13K1/02
Filed: 1929-04-20
Abstract: 337,017. Commercial Alcohol Go., Ltd., Arthur, J. S., and Gogarten, R. April 20, 1929. Glucose &c.-Cellulosic substances which have a low water content or which have been dried down to a low water content such as 10 per cent or less, are subjected to treatment in the following steps :-(1) treatment with steam until they have a moisture content of between, about 20 to 40 per cent; (2) subjecting to the action of hydrochloric acid gas under cooling until decomposition is effected; (3) without removing the hydrochloric acid introducing steam or a mixture of steam and inert gas to saccharify the products of decomposition. The vessel is preferably heated to from 60‹ to 70‹ C. during the saccharification. The materials may be subjected to cooling and to reduced pressure during the moistening, and the hydrochloric acid for the decomposition may be introduced under normal or increased pressure. The product of the saccharification is dried down by the application of reduced pressure, and the residue may then be lixiviated, and the solution so obtained subjected to hydrolysis by means of steam and hydrochloric acid to convert the sugars to monoses.
Patent GB-237053-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes
IPC: H01J21/02
Filed: 1924-05-20
Abstract: 237,053. Mullard Radio Valve Co., Ltd., and Mullard, S. R. May 20, 1924. Vacuum tubes.-A thermionic valve has a filament-cathode 4, Fig. 3, of inverted U or semicircular shape, a grid 1 formed from a zig-zag of wire bent to inverted channel form, and an anode plate 5 also of inverted channel form. The grid wire may be lashed or welded to a central backbone 2, Fig. 7, supported at one end only. The anode is stiffened by channels near the bent edges, and one of these channels has a gap to accommodate a single supporting wire 8 to which the anode is spot-welded. In order more completely to surround the hottest part of the filament, the middle part 15, Fig. 10, of the flat sides of the anode 5 may be bent inwards after slitting; the grid may be similarly shaped. Alternatively, the central portion of the grid and anode may be prolonged and bent under the filament as shown at 13 in Fig. 7. Both the cold electrodes may completely encircle the middle part of the filament. The wire zig-zag from which the grid is formed may have square or rounded corners. Specification 191,767 is referred to.
Patent GB-547361-A (GB)
Title: Improvements in and relating to gas blast electric circuit breakers
IPC: H01H33/32
Filed: 1941-09-25
Abstract: 547,361. Gas-blast switches. BRITISH THOMSON HOUSTON CO., Ltd. Sept. 25, 1941, No. 12456. Convention date, Sept. 28, 1940. [Class 38 (v)] A pneumatically - actuated, gas-blast switch has a pair of tubular nozzle contacts 9, 10 meeting at 11 in an arc-cooling insulating structure comprising parallel plates 19 spaced apart at the bottom and preferably also along the sides by spacers 20, the plates and spacers being apertured to provide a blast-conduit 21 leading to the contacts by way of passages 22 and apertures 12<SP>1</SP>, 13<SP>1</SP>. The contacts are connected to pistons 12, 13 guided in cylinders 14, 15 and operable by the blastgas against the action of reclosing springs 25, 26. In operation, the blast emerging from the nozzles "mushrooms" radially in all directions and forces the arc, regardless of its position, between the plates 19. The stop-cylinders 14<SP>1</SP>, 15' are seated on rubber rings. In Fig. 1 (not shown), the gas valve is operable by a linecurrent transformer and a series isolator is provided. Specification 369,189 is referred to.