baber/WOPTO huggingface dataset:
Patent GB-1232816-A (GB)
IPC: G01S13/526
Filed: 1968-05-27
Abstract: 1,232,816. Pulse radar. NIPPON ELECTRIC CO. Ltd. 27 May, 1968 [27 May, 1967], No. 25298/68. Heading H4D. In a moving target indicating radar utilizing a phase detector 13 fed from a coherent oscillator 11 and the radar I.F. amplifier 12, the output of the phase detector is digitized in an A/D converter 14 the output from which is digitally subtracted in circuit 16 from that in a memory 15 having a delay equal to one pulse repetition period, and the output of the subtractor is compared with a multi-valued or variable reference level. Low-speed targets e.g. from rain are thereby eliminated. If a digital store 17 holds the output of circuit 16 for a number of successive range " bins " and if there are derived signals above a threshold for a given number of the bins, the threshold is reset by a circuit 20 to remove them. A variable pulse repetition period may be utilized.
Patent GB-1233092-A (GB)
IPC: E01B35/00
Filed: 1968-05-22
Abstract: 1,233,092. Levelling or aligning railway tracks. F. PLASSER. 22 May, 1968 [22 May, 1967], No. 24406/68. Heading B7H. In an arrangement for levelling and/or aligning railway tracks in which the track is lifted or laterally shifted to a position defined by a reference line or chord, the track lifting or shifting elements are rendered inoperative when the track is at a set distance from the required position and the track is moved to the final position solely by track compacting tools. The track correcting machine is provided with track aligning tools 6 and associated packing tools 7 which act to shift the track laterally to a position defined by a pair of chords supported on trolleys 13-16 and is also provided with track lifting and packing tools 8, 9, 10 which act to lift the track to a position defined by reference line 17. In the latter arrangement the line 17 is a beam of radiation extending from a transmitter 18, mounted on trolley 13 at a position in advance, to a receiver 20 on the machine and a shadow board 19 provided at the correcting point is lifted with the track to intercept the beam. The shadow board, Fig. 5, includes a first part 22 and an hydraulically extendable second part 23 which can be moved from a position in which its top edge is below that of part 22 to a position in which its top edge is a set distance x above that of part 22. In operation, the part 23 is extended and the track lifting 8 and packing 10 tools are brought into operation. When the beam is cut off a signal is generated which switches off the lifting tools and lowers part 23 of the shadow board below part 22. Thereafter the final lifting over the distance x is carried out solely by the packing tools 10 which compress the ballast and force the associated sleeper upwards. A similar arrangement is employed during lateral shifting of the track. Numerous arrangements of shadow boards, radiation beams and reference wires are described for producing a first signal when a position a set distance x from the final position is achieved and a second signal when this final position is achieved.
Patent GB-1238793-A (GB)
IPC: G03B15/08
Filed: 1969-01-24
Abstract: 1,238,793. Dubbing sound-tracks. SIGN POST PRODUCTIONS Ltd. 24 Jan., 1969 [24 Jan., 1968], No. 4293/69. Heading G5R. A first sound-track is replaced by a second track having a new text synchronous with the first, e.g. in dubbing a foreign-language track on to a cinematograph film, by a process similar to that described in Specification 931,830 but extended in that the record which guides the artist recording the second track carries, instead of the first sound-track, a recording of the new text made, e.g. by its author, in synchronism with the first track. The synchronous advance of the guide record and the second track during the recording of the second track is initiated by a voice-operated relay, or other means under the control of the artist.
Patent GB-1239320-A (GB)
IPC: F28F19/00
Filed: 1969-09-05
Abstract: 1,239,320. Mixing apparatus. ESCHER WYSS G.m.b.H. 5 Sept., 1969 [6 Sept., 1968], No. 44155/69. Heading B1C. A tubular crystallizer has a heat exchange jacket 4 and scrapers 8 pressed against the inner wall 2 by hydraulic or pneumatic adjusting devices 10 whose pressure medium chambers 11 communicate collectively or individually with the outside of the apparatus through the interior 13 of the hollow shaft 3 on which they are mounted. The adjusting devices may comprise a piston and cylinder (see also Fig. 3, not shown) or a bellows (see Fig. 4, not shown) and the scraper blades may be lifted off the wall 2 by a spring (17). The blades may be mounted in holders 9 between the turns of a helical ribbon 6. The edge of which has a p.t.f.e. insert 23. The pressure medium may be a liquid, or an inert gas such as nitrogen; in the latter case the blades abut the scraped surface elastically.
Patent GB-1251475-A (GB)
IPC: F24F1/037
Filed: 1970-05-14
Abstract: 1,251,475. Air conditioners. H. ZEIER. 14 May, 1970 [21 May, 1969], No. 23329/70. Heading F4V. An air conditioner comprises a housing 1 with a hinged lid and perforated front cover 3, a vertically movable panel (15) carrying as a unit on one side an air filter 4, a sterilizing lamp 13, a hygrostat (10), a thermostat (12), a fan 5, a heater 11, a cooling unit and a humidifying unit 9, and, arranged separately on the other side of said panel a water pump (8) and switching gear (14), a water reservoir (6) being disposed alongside the unit and feeding a water container 7. The pump takes water from the container and delivers it via a spray pipe above the unit 9. The water reservoir may also be disposed underneath the unit. The heater 11 may comprise separately switched concentric ring elements. Control knobs may be disposed on or under the lid and indicator lamps 19, 28, 29 on the front panel.
Patent GB-1252480-A (GB)
IPC: G02B27/00
Filed: 1969-12-30
Abstract: 1,252,480. Optical apparatus. INTERNATIONAL BUSINESS MACHINES CORP. Dec.30, 1969 [Jan.15, 1969], No.63206/69. Heading G2J. Dispersion compensating apparatus for resolving resolving multiple images resulting from aberration dispersions caused by manipulating a multiwavelength radiation beam using a multistage polarization deflector system, comprises in series an input 43, 44, 45, first dispersion compensating means 22, focusing means, second dispersion compensating means 23 and an output 24 wherein each dispersion compensating means is arranged to relatively alter the lengths of the paths tranversed by the various wavelengths during passage therethrough, one dispersion compensating means being arranged to resolve transverse dispersion and the other dispersion compensating means being arranged to resolve longitudinal dispersion. Each compensating means 22, 23 is formed of a plurality of stages 30-31, 32-33, 40, 41-42 equal to one less than the number of wavelengths in the beam. Each stage comprises a birefringent means 31, 33, 40 or 42 preceded by a polarization rotator 30, 32, or 41, except for the first stage 40 of compensator 23 which receives a polarized input from birefringent means 33. The input 43, 44, 45 comprises separate images of different sizes of the same object due to dispersions caused by the different wavelengths. Thus each rotator selectively rotates the polarization of selected ones of the wavelengths and each birefringent means presents different optical path distances for the wavelengths dependent upon their polarization. In this way compensator 22 forms an output of images of identical size albeit still separated; this is the input for compensator 23 which ensures that all the images being its output 24 lie in the same plane - i.e. at the focus of the lens lying between the two compensators. The rotators may be quartz crystals and the birefringent devices calcite crystals.
Patent GB-1265595-A (GB)
IPC: C07C51/275
Filed: 1970-05-19
Abstract: 1,265,595. Lactic acid. RHONE-POULENC S.A. 19 May, 1970 [23 May, 1969], No. 24262/70. Heading C2C. Lactic acid is purified by treating with hydrogen in the presence of a hydrogenation catalyst. The lactic acid is prepared by the hydrolysis of intermediate products produced by the oxidation of propylene by nitric acid and/or nitrogen peroxide. This acid contains nitrogen-containing impurities which are removed as nitrogen or nitrous oxide, residual ammonium ions may be removed by cation exchange resins or electrodialysis. Group VIII metals may be used as a powder, spheres or granules or deposited on a carrier. Examples describe the use of palladium or platinum on carbon black.
Patent GB-1266308-A (GB)
IPC: B43L23/00
Filed: 1970-09-30
Abstract: 1,266,308. Pencil sharpeners. A. CHO. 30 Sept., 1970, No. 46533/70. Heading B6P. A sharpener for pencil leads 35 comprises two parts 1, 2 relatively rotatable about a common axis, the part 2 having an inner grinding surface 3, and the part 1 having a holder 5 for receiving a lead carrier 33, the holder 5 being pivotally adjustable for varying the angle to which the lead point 35 is ground when the parts 1, 2 are relatively rotated. As shown, the holder 5 has two recesses 10, 11, Fig. 2, the recess 10 being intended to rotatably receive a lead carrier 33 and the recess 11 being provided with spring- pressed jaws 23, 24 for clamping an hexagonal lead-carrier 33. The holder 5 is pivoted centrally on ball-and-socket joints 6, 7, Fig. 4, the lower ball part 7 being integral with the member 1 and the upper ball part 7 being formed on a slider 19 adjustable on the member 1 by a screw-and-slot device 20, 37 to vary the position of the holder 5 for adjusting the grinding angle. A carrier 33 placed in the recess 10 is held by the hand to prevent its rotation whilst the part 1 is rotated relatively to the part 2, the lead thus being sharpened. A carrier 33 clamped by the jaws 33 in the recess 11, cannot rotate relative to the part 1 so that relative oscillation of the parts 1, 2 causes a chisel edge to be formed on the lead 35. More than one holder 5 may be provided on the part 1. A central pin 15 fixed to the part 1 extends rotatably through the part 2 and has a groove at its lower end engaged by a spring 31, the arrangement permitting easy detachment of the part 1 from the part 2. The grinding surface 3 may be formed by applying abrasive particles to the frusto-conical inner surface of the part 2, but preferably consists of a strip of emery paper secured by a clamp 9. A brush 14 of, e.g. plush, for cleaning the sharpened leads, is rigidly secured to the part 2, and openings 27, 28, Fig. 2 are provided in the part 1 for inserting holders 33 so that the leads 35 contacts the brush. The parts 1, 2 are relatively rotated for cleaning the leads. An accessory (Fig. 6) for use in sharpening the leads of a pair of compasses, comprises an hexagonal sleeve fitting into the recess 11, and wedge members for securing in the sleeve the lead-holding chuck of the compasses. To enable the lead to be adjusted to the required length prior to grinding, a helical strip 41, Fig. 2, is provided on the outer surface of the part 1 and a scale is provided on the edge 54.
Patent GB-1267030-A (GB)
IPC: A47J39/00
Filed: 1970-09-23
Abstract: 1,267,030. Baking ovens. CROWN-X Inc. 23 Sept., 1970 [10 Nov., 1969], No. 45267/70. Heading A2A. [Also in Division F4] In an oven having at atmosphere circulated by a fan 19 and heated by a burner 25 fixing into the open end of a duct 29, which passes through the chamber and round the outlet funnel 24 of the fan to an outlet 31, water from a tank 37 is allowed to drip into the outflow from the fan 19 to give a moist atmosphere. The end of the burner duct may be shaped to direct its outflow into the circulating stream or baffles may be used. A second fan 35 draws cooling air over the motor 20 driving fan 19, and delivers it to a flue outlet 32 to cool the exhaust gases.
Patent GB-1289636-A (GB)
IPC: B30B1/32
Filed: 1970-01-23
Abstract: 1289636 Stamping SPETSIALNOE KONSTRUKTORSKOE BJURO GIDROIMPULSNOI TEKHNIKI 23 Jan 1970 3390/70 Heading B3Q An hydraulic stamping press comprises a movable upper frame 3 with a punch 4, a lower frame 1 with a die 2 and at least three, e.g. twelve, actuating cylinders 6 the piston-rods 14 of which are releasably connectable to the upper frame 3. The lower frame 1 may be stationary or mounted on wheels 42 and driven electrically for conveying the stamping out of the press and supplying a fresh blank, as limited by stops 43 for the wheels. A screw-thread 21 is provided on the piston-rods 14, which are permitted slight lateral movement by curved surfaces on the pistons 15 and washers 17. Two or more hydraulic cylinders 5, e.g. three, raise the upper frame during transfer movements of the lower frame. Aligned with the rods 14 are bushes 39 in the upper frame and positioned on these are rings 27 having annular grooves 26 containing elastic material 28. Supported on the upper frame 3 is a driving assembly 8 for rotating nuts 30 when these engage the rods 14, the nuts rotating in mounting rings 24 which rest on the elastic material 28 so as to provide hinge supports for the rods. Each nut 30 has a sprocket 31 engaged by a chain 32 which is driven by at least one sprocket 37 rotated by an electromotor 33. Operation.-The pressure in cylinders 5 is relieved to lower the punch 4 against the blank (not shown), and the cylinders 6 are operated to raise the rods 14 into the bushings 39 for fitting of the nuts 30 on the rods. The nuts are rotated on the rods until they seat in the rings 24, and stop-nuts 22, 23 on the rods 14 are located against the bushings 39 and at a distance from the lower frame, respectively. Fluid is now introduced above the pistons so that the rods 14 lower the punch to form the blank. If several strokes are required for deep stamping, the pistons 15 are raised and the top nuts 22 simultaneously screwed down the length of a stroke so that the upper frame and punch 4 remain in the lowered position while the driving assembly 8 is raised by the nuts 30. Rotation of the latter until they again seat on the rings 24 now prepares the press for a further stroke.
Patent GB-1290622-A (GB)
IPC: D06P3/62
Filed: 1970-10-12
Abstract: 1290622 Dyeing and brightening textiles; creaseproofing MITSUI TOATSU CHEMICALS Inc 12 Oct 1970 [14 Oct 1969 16 Oct 1969] 48429/70 Headings D1B and DIP Cellulosic textile materials are dyed or brightened and simultaneously given crease resistance and wash-fastness properties by treating in a liquor containing tetraoxane or pentoxane, an acid catalyst and a dye or fluorescent brightening agent followed by a heat treatment at a temperature of 100‹C or above, preferably 130-230‹C. The liquor may also contain trioxane, the amount of tetra oxane or pentoxane being 0.1 to 10 parts by weight per 100 parts of liquor. The dyes employed may be direct, vat, disperse basic or reactive dyes, blends of cotton and polyester being specified. During the process the tetraoxane and pentoxane rings open to give polyoxymethylene bridges between the dye and the cellulose or cross-linking of the cellulose fibres occurs.
Patent GB-1290675-A (GB)
IPC: C21C5/32
Filed: 1969-07-08
Abstract: 1290675 Refining ferrous materials BRITISH OXYGEN CO Ltd 16 June 1970 [8 July 1969] 34434/69 Heading C7D While oxygen-lancing steel or a ferrous alloy the entire free surface of the molten metal is blanketed with inert gas, preferably argon or nitrogen, to such a depth that iron vapour remains within the blanket until it has cooled sufficiently to avoid oxidation. The vessel containing the vessel may be located in the inert atmosphere, or inert gas may be injected above the charge. The process is applied also to copper-nickel alloys containing iron and carbon.
Patent GB-1294906-A (GB)
IPC: F01D17/24
Filed: 1970-05-27
Abstract: 1294906 Automatic control of steam turbines GENERAL ELECTRIC Co 27 May 1970 [27 May 1969] 25427/70 Heading G3R An electro-hydraulic control system for a steam turbine generally similar to that described in Specification 1037346 is provided with a throttle pressure compensator 54 which is responsive to the steam pressure sensed at a point just downstream of the stop valve 14 and which adjusts the gain of the valve positioning units 56, 58, 60 in a manner inversely proportional to the instantaneous throttle pressure, so that the load reference/actual load characteristics is linearized. The action of the compensator 54 may be supported by a signal representative of the turbine first stage pressure, which is applied to the load control unit 44 and reduces incremental changes in valve regulation. Operation of the control system is described with reference to the transfer functions of the various elements, Fig.2 (not shown) which includes mechanical coupling between an amplifier (94) in the first stage pressure feedback circuit 69,70, 72 and the unit 44, so that the overall gain of the system can be reduced to unity if the first stage pressure signal falls below a predetermined low level. In an embodiment to protect against loss of the pressure signals, Fig.3 (not shown) each signal is passed to a respective pair of transducerdemodulators whose outputs feed a respective gate device which will pass only the highest feedback signal, an erroneously low signal thus being rejected from the control system.
Patent GB-1295536-A (GB)
IPC: B32B37/15
Filed: 1970-04-03
Abstract: 1295536 Coating apparatus WIGGINS TEAPE RESEARCH & DEVELOPMENT Ltd 19 April 1971 [3 April 1970] 16038/70 Heading B2L [Also in Division Dl] A flexible sheet 1 is coated on both sides by first coating one side from an extrusion head 7, turning the sheet upside down by means of a non-rotatable turner bar 10 and coating the other side, at this point uppermost, by means of a second extrusion head 14. Each coating station comprises a pressure roller 3, 11 and a chilling roller 4, 12. The turner bar 10 may be perforated and provided with a flow of air to reduce wear on the web passing thereover. As shown the direction of web feed is changed by 90 but this may be varied. Dancer rolls may be provided to equalise web tension and beta ray gauges 9, 16 may be provided to measure the thickness of the coating. The web may be of paper, paperboard, metal foil or fabric and the coating which may be different on each side may be of polypropylene, ethylene vinyl, pvc, polyvinylidine chloride, an acetate copolymer or polyethylene.
Patent GB-1297328-A (GB)
IPC: E05F1/12
Filed: 1971-04-19
Abstract: 1297328 Hinge hold-open device REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 19 April 1971 [10 April 1970] 26635/71 Heading E2F A hinge comprising a first forked member 2 pivoted as shown between the wings 1' of a second forked member 1 has a hold device comprising a first holding member extending between, and having a surface 11 extending beyond the free ends of the wings 2' of the member 2 and a second holding member extending between the wings 1' and having a surface facing the pivot pin 12, the arrangement being such that the two surfaces contact each other upon rotation of the members 1, 2 and one of the surfaces resiliently retracts under the contact pressure. As shown, the first holding member comprises a bar 10 and a strip 11 of brake shoe lining whilst the second holding member comprises a rod 8 engaged in slots 5 in the wings 1' extending radially from the pin 12 and urged towards the pin 12 by an arcuate leaf spring 6 engaged between the ends of the slots remote from the pin. Alternatively, the rod 8 may be immovably located whilst the bar 10 is replaced by a rod having a sleeve of elastomeric material loosely surrounding it.
Patent GB-1304253-A (GB)
IPC: F26B3/08
Filed: 1970-06-13
Abstract: 1304253 Evaporation of solutions to obtain dry solids; spray producers HEAD WRIGHTSON & CO Ltd 11 June 1971 [13 June 1970] 28735/70 Addition to 1119514 Headings B1B and B2F [Also in Division F4] Dry particulate solids of high bulk density are obtained from a solution or slurry by injecting it through nozzle 7 into a zone 20 wherein ordered motion 17 of hot, dry solid particles is maintained in a normally fluidized bed 15 thereof, the injected solution or slurry being caused to move in directions transverse to the ordered motion 17 by imparting rotary motion to the feed to nozzle 7 by means of a helical groove 27 in cylindrical block 24 provided in the tube 5 which is supplied with solution or slurry through inlet 6. A liquid vortex is formed between cylinder 24 and the lip 30 of nozzle 7; and the stability of the vortex is increased by forcing compressed air through passage 25 via passage 26 within rod 23. The hot solid particles in zone 20 become coated with solution or slurry, and the liquid then evaporates therefrom. The bed 15 is fluidized by injecting gas at a plurality of points in the base; and the ordered motion 17 in zone 20 is produced by introducing compressed gas through tube 10 and constriction 14. The path 36 followed by the solution or slurry on discharge from the nozzle 7 can be altered by altering the chamfering of the outer surface 31 of the lip 30. In an alternative injection device (Fig. 3, not shown) which is suitable for imparting rotary motion to viscous solutions and slurries, the tube 5 contains a metal or plastics block provided with peripheral channels, and this block is rotated, together with a helical screw element, by an electric motor.