baber/WOPTO huggingface dataset:
Patent GB-1493175-A (GB)
Title: Heat exchanger for separately guided media
IPC: F28D9/00
Filed: 1975-03-20
Abstract: 1493175 Corrguated-plate heat exchangers KERNFORSCHUNGANLAGE JULICH GmbH 20 March 1975 [30 April 1974] 11751/75 Heading F4S In a heat exchanger consisting of at least one pair of heat exchange matrices with each matric comprising a corrugated plate 1 separating two fluids (e.g. gases at differing pressure) flowing one on each side of the plate along the corrugations, means closing, for both fluids, the ends of the corrugations, and cover plates extending over the corrugations on each side of the plate to confine fluid flow to the corrugations, the said cover plates are formed to provide for each fluid a plurality of inlet and outlet duets to and from the corrugations, said ducts alternating in the direction along the length of the corrugations, each inlet duct on one side of the plate being positioned opposite an outlet duct on the other side of the plate. In Fig. 1, showing one form of the matrix, the corrugation ends are closed by plates 5 and the inlets 7 and outlets 8 for each fluid are defined by recesses in the cover plates 2, 3. The closure plates 5 may be resiliently pressed against the corrugation (Fig. 2, not shown) ends wherein also the inlet and outlet ducts 7, 8 are provided by grooves in relatively thick cover plates. Fig. 5 shows a heat exchanger unit 13 a plurality of which are arranged in a cylindrical casing (12, Fig. 4). The unit comprises a faceto-face pair of the corrugated plates 1 with their ends supported by a pair of headers 14, 15 these providing the end closures of the corrugations and serving also to supply one of the fluids said fluid being subsequently discharged through a duct 21 defined as shown by elements 17. Spacing means 16 between adjacent units 13 provide also the inlet and outlet means for the other fluid, all as shown by the arrows in Fig. 5. Adjacent units may be either parallel to one another (Fig. 4) or radially arranged in the casing (12). Individual units are removable from the casing. Provisions (e.g. slits 18, Fig. 3) only briefly described, are made to accomodate relative expansion of the unit components.
Patent GB-537732-A (GB)
Title: Improved means for sealing milk bottles and other receptacles
IPC: B67B1/10
Filed: 1940-07-16
Abstract: 537,732. Closures for bottles and like containers. FREEMANTLE, H. R., and RAPPINGS, Ltd. July 16, 1940, No. 11782. [Class 125 (iii)] Milk bottles and other containers made of material not permeable by water are sealed by internal or external stoppers or caps which are pressed into sealing position over a layer of amorphous paraffin wax. A device is shown for sealing the bottle 6 in this way. The closure disc 4, coated on its outside with amorphous paraffin wax, is carried by the hollow rubber ring 3 on the plunger 1. Compressed air is supplied through the duct 2 to force the ring to expand to force the disc into contact with the bottle neck and the wax holds it in position after withdrawal of the plunger. The closure discs may be cut from reels of paper previously waxed to which rings of adhesive wax of the correct diameter are added, or the web may be semi-perforated so that the sealing machine punches out the disc when it is correctly registered. Specification 535,231 is referred to.
Patent GB-1416873-A (GB)
Title: Aircraft fuel pumping systems
IPC: F04D17/18
Filed: 1972-03-14
Abstract: 1416873 Hydrocyclones ROLLS-ROYCE (1971) Ltd 9 March 1973 [14 March 1972] 11801/72 Headings B1M and B2P [Also in Division Fl] Liquid fuel containing gas bubbles is fed at 26, Fig. 7, on to a conical baffle 40 surmounted by a weir 42. The gas separates from the liquid and collects at the top of a cylindrical container 44, while the liquid flows over the baffle 40 and through a small clearance between the baffle and the wall of the container and leaves the container at 28. In the vortex separator shown in Fig. 8, having a tangential inlet 54, the separated gas forms a central core, shown dotted, which is discharged via a central top outlet 56, while the liquid fuel keeps to the wall of the container 48 arid passes via two part-annular slots 52 in a diaphragm 50 to a chamber 102 below the diaphragm and thence to a tangential outlet 58.
Patent GB-219418-A (GB)
Title: Improvements in or relating to apparatus or device for drying or airing off clothes or the like and/or for serving as a fireguard
IPC: D06F57/06
Filed: 1923-05-02
Abstract: 219,418. McGown, R. O. May 2, 1923. Fenders; guards.-A clothes airer and fender combined which may be used as a fireguard comprises a fender formed of two parts A, A<1>, hinged or otherwise connected together, and a collapsable clothes support consisting of uprights B and a cross-bar B<2>, and adapted to be connected temporarily to the fender and stored within the lower part A when not in use. The uprights are engaged in slots formed in metal plates A<4> secured to the limbs of the fender. In modifications, the uprights may be provided with extensions inclined away from the fire place or they may be supported upon the upper part of the fender when the latter is hinged to the lower part on the side remote from the fireplace.
Patent GB-864312-A (GB)
Title: Improvements in and relating to fibres, filaments, threads and textiles of polyacrylonitrile
Inventor: FURNESS VERA ISABELLA
IPC: D06M13/188
Filed: 1958-04-14
Abstract: Polyacrylonitrile threads and like products, and fabrics consisting of or containing them, are treated with an aqueous solution containing at least 0,05%, preferably 0,1 to 2%, by weight of an ammonium or alkali-metal salt of an aliphatic carboxylic acid having reducing properties such as sodium formate or potassium oxalate, the temperature of the solution being at least 85 DEG C. and preferably at or near the boiling point.  The term "polyacrylonitrile" includes copolymers of at least 80% by weight of acrylonitrile with up to 20% by weight of one or more other ethylenically unsaturated monomers such as methyl acrylate, styrene, itaconic acid or vinyl acetate.  In the example, a knitted fabric consisting solely of threads of a 93 : 6 : 1 ternary copolymer of acrylonitrile, methyl acrylate and itaconic acid is immersed for one hour in a 0,5% boiling aqueous solution of sodium formate using a liquor : yarn ratio of 50 : 1. The heat stability of the threads is improved by the process of the invention and at the same time, if the polymer molecule of the threads contains carboxylic acid groups to improve the receptivity of the threads for basic dyes, this receptivity is left unimpaired. U.S.A. Specifications 2,661,341, 2,661,342, 2,661,343, 2,661,344, 2,661,345, 2,661,346 and 2,661,347 are referred to.
Patent GB-1076152-A (GB)
Title: Improvements in aircraft power plants
Inventor: LEWIS GORDON MANNS
IPC: B64C29/00
Filed: 1963-03-26
Abstract: 1,076,152. Direct lift aircraft. BRISTOL SIDDELEY ENGINES Ltd. March 19, 1964 [March 26, 1963], No. 11924/63. Heading B7G. An aeroplane comprises an engine pod slung below a lifting surface and housing one or more direct lift turbo-jet engines for use during takeoff and landing only, the pod having one or more engine air intake openings in part of its surface facing the lifting surface, and means, at least partly retractable, for forming a wall or walls behind the air intake opening or openings to block the space between the pod and the lifting surface and thereby form a forwardly facing air scoop above the air intake opening or openings. An aircraft wing 11 (Fig. 2, not shown) has an engine pod 12 suspended therefrom by a pair of forward struts 13 and a single rear strut 14. A forward propulsion gas turbine engine 15 is mounted in the forward part of the pod to exhaust into swivelling nozzles 17, and a pair of inclined direct-lift by-pass turbo-jet engines 18, 19 are mounted in the rear part of the nacelle, which is formed with air intake openings 18a and 19a and exhaust outlets 18b, 19b. In flight, airflow over the upper surface of the pod, makes it difficult to obtain an airflow into intakes 18a, 19a and accordingly the strut 14 carries fairing members 14a, mounted on a common pivot 14b, which may be swung out of contact with strut 14 to substantially close the rear end of the space between the pod and the wing. Also, flaps 20, mounted on pivots 20a may be swung from cavities 25 in the undersurface of the wing to vertical positions to form, with members 14a an air scoop that directs air into intakes 18a, 19a and thereby facilitate starting the lift engines in flight. The members 14a may be replaced by a single flap hinged downwardly from a recess in the wing undersurface and struts 13 may extend rearwardly the length of the pod, thereby dispensing with flaps 20.
Patent GB-119855-A (GB)
Title: Production of High Percentage Anthracene.
IPC: C07C7/14
Filed: 1918-07-23
Abstract: 119,855. Soc. d'Eclairage Chauffage et Force Motrice. Sept. 28, 1917, [Convention date]. Anthracene.-Crude anthracene is purified by dissolving it in warm phenols (crude phenol, cresols, xylenols, &c.) and crystallizing out. The crystals are washed with cresol &c. and solvent removed by heat, benzene, akali solution, &c. The process may be repeated, and followed by a final purification by means of pyridine.
Patent GB-455356-A (GB)
Title: Improvements in or relating to television and like transmitting apparatus
IPC: H01J31/26
Filed: 1935-04-18
Abstract: 455,356. Television transmitters ; cathode-ray tubes; photo-electric cells. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London, and WALKER, L. E. Q., Devon House, Townsend Drive, St. Albans, Hertfordshire. April 18, 1935, No. 12080. [Classes 39 (i) and 40 (iii)] In a television transmitting system, a cathode-ray tube has a light-permeable partition, one side of which is formed as a fluorescent screen and is scanned by a cathode beam and the other side of which is formed as a photoelectric cathode with which is associated an anode for receiving electrons from said photocathode. As shown, the partition 7 in the tube 1 has a fluorescent layer 8 which is scanned by a cathode ray 12 and a second layer formed as photo-electric cathode 9 on which the subject for transmission is projected. The associated anode 10, formed as a ball on a suitable support 11, receives photo-electrons according to the average or background brilliance of the picture transmitted. The photo-electric cathode is operated over the non-linear portion of its characteristic and during the passage of the fluorescent spot over the area occupied by the projected picture, further electrons dependent on the picture intensity of the elemental areas are emitted from the cathode 9. The amplification of a variable-Á valve 14 is varied according to the background component by the connection of its grid 18 through a resistance 15 to the anode 10 which is also connected to the photo-electric cathode 9.
Patent GB-612533-A (GB)
Title: Multiplex signalling systems
IPC: H04N7/084
Filed: 1946-04-13
Abstract: 612,533. Multiplex radio signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 18, 1946, No. 12095. Convention date, April 20, 1945. [Class 40 (v)] In a television transmitter a low-frequency signal, e.g. sound, is transmitted as a frequency modulation of a sub-carrier generated only during line fly-back periods of the vision signal. The invention is stated to be applicable to other communication systems in which intelligence signal modulations of one character are transmitted with an interspersed series of control pulses which repeat at a uniform rate at a predetermined signal amplitude. Transmitter.-As described, video signals from an image pick-up unit 11, Fig. 1, are applied through amplifier 13 to a mixer 15 feeding the transmission channel 79. The synchronizing signal generator 17 feeds line and frame synchronizing pulses and horizontal and vertical blanking pulses to the mixer 15 from terminals SH, SV and BH-V respectively. Sound signals from the microphone 19 and amplifier 21 are passed through the low-pass filter 23, having a cut-off frequency of substantially half the line-scanning frequency, to control a thermionic reactance tube 27. Keying pulses at line frequency are taken from terminal 29 of generator 17 and lead slightly with respect to the horizontal synchronizing pulses at terminal SH. The horizontal blanking pulses are suitable for this purpose and they are shaped in unit 31, which emphasises the highfrequency components and suppresses the lower frequency components, and then fed through a peak power amplifier 43 to'the anode of a sub-carrier oscillator tube 45. This tube is thus arranged to generate oscillations until cut off just prior to the termination of the line synchronizing pulses and their frequency is modulated by the reactance tube 27 under the control of the sound signals. The resulting pulses of frequency modulated sub-carrier are fed to a frequency tripler 71, the output from which is passed to the mixer 15 through an amplifier 75. Receiver.-The signal receiver 85, Fig. 2, passes the video signals to the grid 97 of the image-producing tube 100 over conductors 95, 96 and to the filter 107 over conductor 89. This filter removes the sound sub-carrier from the synchronizing pulses which are then derived from the synchronizing separator 109 and fed to the deflection control circuits 112, 113 associated with the deflecting coils 102 ... 105 of the tube 100. The sound channel comprises a gate amplifier 121 following an inverter stage 117 and feeding the selected frequency modulated pulses to a discriminator 129 amplifier 131 and reproducer 120. The gating control pulses are derived from a generator 125 synchronized by circuit 123 controlled by the output from amplifier 121. Detailed circuit arrangements are described in the Specification, Figs. 3, 4 and 6 (not shown). Specification 595,730 is referred to.
Patent GB-527886-A (GB)
Title: Scanning ray tube target for a television signal-reproducing system
IPC: G02F1/03
Filed: 1939-04-22
Abstract: 527,886. Television; light-valves; cathode-ray tubes. HAZELTINE CORPORATION. April 22, 1939, No. 12177. Convention date, April 29, 1938. [Classes 39 (i) and 40 (iii)] In a television receiver, a modulated cathode ray beam c, Fig. 1, scans a bank of lenses 21 to alter their focal lengths; each lens 31, Fig. 5, normally focuses light from a source 25, Fig. 1, onto a stop 32a, Fig. 5, but when the focal length is altered, light passes the stop and is focused on a viewing screen by lens 29. The lenses are preferably of quartz and change their focal length as the result of thermal or piezo-electric effects. The stops 32a are preferably formed by placing a photographic plate against the lenses and exposing it to the light from source 25 when the beam c is cut off; the plate is then developed and fixed and replaced to provide the stops 32a.
Patent GB-1079395-A (GB)
Title: Improvements in the manufacture of needled and non-woven felts for use in the paper making and analogous trades
IPC: D04H5/02
Filed: 1965-03-23
Abstract: A method of producing an endless nonwoven felt comprises feeding a warp and a web to a needling loom until a preselected length of fabric has been formed, then re-introducing the leading end of the fabric to the needling loom together with the trailing warp, with or without the introduction of more web, until the desired thickness is achieved.  Several layers of warp may be introduced with the web initially.  The leading end of the fabric may be re-introduced over or under the warp.  The warp may include crimped continuous filament yarns.
Patent GB-591648-A (GB)
Title: Improvements in the manufacture of stems for electron discharge devices and the like
IPC: H01J9/32
Filed: 1945-05-15
Abstract: 591,648. Glass manufacture. STANDARD TELEPHONES & CABLES, Ltd., and MOSCRIP, W. R. May 15, 1945, No. 12222. [Class 56] Glass stems or bases for electron discharge devices and the like are made by softening a thin sheet of glass by heat and blowing the softened glass by gas pressure into contact with a mould adapted tu form the external surface of said stem or base. As shown in Fig. 2, a thin sheet of glass 8 is supported in a frame 9 and 10 above a moulding die 2, having a central ejecting tool 3, both of which are formed with conical depressions 4 and 5 for producing corresponding perforated protuberances 6 in the base 7, onto which conductors or glass tubes may afterwards be sealed. The glass sheet is heated by a burner 19, which is then swung away and the upper part of the moulding device, Fig. 1, comprising a hollow cylindrical sleeve 12, adapted to fit over the edge of the die 2 and having a cutting edge 13, clamp ring 14 and shank 15 with central channel 17, is brought down, so that lugs 11 and 18 contact and force the sheet onto the die where it is held by the clamping ring 14. The cutting edge 13 sheers off excess glass against the outer periphery of the die and air is blown through the channel 17 and hole 16 to force the glass into the mould.
Patent GB-727742-A (GB)
Title: Improvements in or relating to resonant cavity magnetrons
IPC: H01J23/22
Filed: 1952-05-15
Abstract: 727,742. Magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 15, 1952 [June 7, 1951], No. 12356/52. Class 39 (1). In a strapped multicavity magnetron which is tunable by adjusting the hollow member P with respect to the straps a, b, the member P is provided with a plurality of radial slots to prevent the circulation of induced currents. The planes of the slots are common with the planes of symmetry of the anode segments. The member P has annular protuberances S penetrating between the straps.
Patent GB-1130998-A (GB)
Title: Improvements in multi-roll stands
IPC: B21B13/14
Filed: 1967-03-16
Abstract: 1,130,998. Rolling. SCHLOEMANN A.G. 16 March, 1967 [30 March, 1966], No. 12396/67. Heading B3M. A multi-roll stand for hot or cold rolling metal strip includes work rolls 1 which are frictionally rotated bypositively drivenbacking rolls, and are offset from the plane of the backing rolls, further rolls 3, 4 and 5, whose axes are in a common plane, supporting each work roll against horizontal movement. The bearings of each work roll are constrained by claws 14 and 21, the claw 14 being urged by a pneumatic cylinder against the roll, while the claw 21 is urged by a guiding member 24 towards the roll, and by a piston 29 and lever 30 towards the respective backing roll. A further piston 32 and cylinder 31 allows the member 24 to be retracted and the roll withdrawn. Each roll 5 is formed by a number of discs held in a roller comb 6. Balancing cylinders 12 and 20 are provided for the combs 6 and for carriers 13 housing the rolls 3, 4 and 5. For hot rolling, larger diameter work rolls are provided and lubricant for the rolls is distributed into a space bounded by the peripheries of the rolls 1, 3, 4 and 2.
Patent GB-567814-A (GB)
Title: Improvements relating to screw and nut fastenings
IPC: F16B37/04
Filed: 1943-07-31
Abstract: 567,814. Anchor nuts. GUEST, KEEN, & NETTLEFOLDS, Ltd., and WHITCOMBE, C. J. July 31, 1943, No. 12455. [Class 89 (i)] Anchor nuts comprise flanged polygonal casings 16, 13, Fig. 2, in which the nuts are contained with float in all directions but without freedom to rotate. The flanged casings are held under the flanges 14 of a channel member 10 by which the nuts are attached to one member to be secured. The nuts are confined in the channel with freedom limited by slits 15 cut in the web which is then stamped to form abutments 17. In a modification the abutments 17 are raised between pairs of slits 15, Fig. 4. In a further form pairs of slits on each side of the nut extend lengthwise of the channel and from each slit a pair of lugs are bent up. The flanges 16 may be formed directly on the nuts. The slits may be formed in the retaining flanges 14 and parts of them may be displaced to form the stops. Specification 532,831 is referred to.
Patent GB-1482236-A (GB)
Title: Dehumidifiers
IPC: F28B1/02
Filed: 1976-03-10
Abstract: 1482236 Condenser INDAIR Ltd 10 March 1976 [25 March 1975] 12457/75 Heading B1B A condenser for dehumidifying air comprises a plurality of V-shaped tubes (10) through which coolant may be circulated (via 14 and 12) and upon which condensate is formed which runs to the bottom of each V to fall therefrom into a collector (22). The flow of condensate is improved by the provision of a depending element (26) e.g. a length of wire at the bottom of each V. Air may be drawn over the tubes by means of a fan (18).
Patent GB-1603183-A (GB)
Title: Process and apparatus for continuous measurement of the enzymatic activity of the biomass in biological purification systems
IPC: C12Q1/32
Filed: 1978-03-30
Abstract: Process for the continuous measurement of the enzymatic activity of the biomass in biological purification systems for urban or industrial effluents. The process consists in applying the assay of dehydrogenases by a colorimetric method to the continuous measurement of the enzymatic activity of the biomass in biological purification systems, especially by the method employing the reduction of colourless 2,3,5-triphenyl- tetrazolium chloride to red triphenylformazan. The automatic device using this process has a sufficiently rapid response to enable poisoning of a biological purification station to be prevented. <IMAGE>
Patent GB-568807-A (GB)
Title: Screw milling and grinding machine
IPC: B24B19/02
Filed: 1944-06-20
Abstract: 568,807. Grinding-machines. KESSLER, L. June 20, 1944, No. 12488/43. [Class 60] [Also in Group XXII] In a screw-cutting machine the work W is mounted between a headstock spindle A and a tailstock spindle C, both of which are carried by a table G, the former carrying a lead-screw engaging a nut A<1> whilst the latter is pressed towards the work by a spring F and a hand lever E. The table G is slidable transversely to the spindle axis by means of a slide H working in stationary guides J which also support a stationary milling cutter or grinding disc J<2>. In operation, the work is moved up to the cutter by a hand lever (not shown), operating on the slide H, an adjustable stop on the slide determining the depth of cut, and on rotating the spindle A by a pulley or handle A<2> the work is rotated and traversed past the cutter, the spindle C being pushed back against its spring. The spindle A and nut A<1> are interchangeable to suit different pitches of thread.