baber/WOPTO huggingface dataset:
Patent GB-953899-A (GB)
Title: Process for the preparation of natural choline phosphoric acid diglyceride ester compounds
IPC: C07F9/10
Filed: 1961-05-18
Abstract: A water-soluble choline phosphoric acid diglyceride ester compound is obtained by reacting a natural choline phosphoric acid diglyceride ester, free from colamine phosphoric acid diglyceride ester and having a moderately preponderant proportion of essential and other unsaturated fatty acids in relation to the total fatty acid content, with an aqueous solution of sodium desoxycholate in an alkaline medium and in the presence of an inert gas, e.g. nitrogen, less than 1 mole but not less than 0.8 mole of sodium desoxycholate being used for 1 mole of the diglyceride ester.  The pH value of the reaction mixture is preferably above 8.  The diglyceride ester may be obtained from soya bean crude lecithian by the procedure described in Specification 877,031 and may comprise in relation to the total fatty acid content more than 80% of unsaturated fatty acids of which the greatest part consists of essential fatty acids, e.g. linoleic and linolenic acids. Up to 50% by weight of the diglyceride ester fraction may be replaced by lysolecithins which may also be obtained by the process disclosed in Specification 877,031 and contains about 28% of essential fatty acids in relation to the total fatty acids. In a modification of the process a very dilute alcoholic solution containing about 1% of diglyceride esters such as is described in the example of Specification 877,031 is treated with a small amount (e.g. 0.2% per gram of choline phosphoric acid diglyceride ester) of alpha-tocophenol (preferably in the form of its acetate) to form an adduct therewith, the alcohol distilled off under reduced pressure in the presence of an inert gas such as nitrogen or carbon dioxide and the adduct then reacted in alkaline medium with an aqueous solution of sodium desoxycholate in an amount of less than 1 mole but not less than 0.8 mole per mole of the diglyceride ester.  Up to 2% by weight of the alpha-tocophenol may be added to the diglyceride esters or to the mixture of diglyceride esters and lysolecithin.  The products have therapeutic value, e.g. in the treatment of arterioscherosio and diabetes and may be used in the form of a 5 or 10% aqueous solution which is applied parenterally, e.g. intravenously.
Patent GB-950796-A (GB)
Title: A traverse mechanism with variable stroke
IPC: B65H54/32
Filed: 1962-05-10
Abstract: 950,796. Winding and twisting yarns. ALGEMENE KUNGSTZIJDE UNIE N. V. May 10, 1962 [May 29,1961], No. 18090/62. Headings DID A variable stroke traversing mechanism, for example for a thread guide of a yarn winding machine or the ring table of a downtwister, comprises two slides 1,2, Fig. 2, guided for parallel motion, means for causing slide 1 to have a fixed stroke, a coupling member 8 interconnecting the two slides at pivot points 10 and 18, the coupling member 8 being slidable on the pivot 10, a guide 20 normal to and carried by the slide 1, a guide 16 that is mounted on a fixed fulcrum 17 at an adjustable angle α to the slide 1 to vary the stroke of the slide 2, and an arm 14 rigid with the coupling member 8 and on which arm 14 is slidably mounted a guide member 19, the guide member 19 being slidable also along the guides 16 and 20. The pivot point 18 is adjustably mounted on the slide 1. The mechanism ensures that if the slide 1 has a velocity V1 then the slide 2 will have a proportional velocity V2 given by:- V 2  = V 1  (1-b/s tan α) where b = the distance between the slider 1, 2. s = the distance between the pivot point 18 and the guide 20. The change of stroke of the slide 2 is proportional to the movement of a slide 22 acting on the guide 16. The slide 2 may be given the fixed stroke in which case the slide 1 will have the variable stroke. Fig. 3 shows a modification in which the linkage system described with reference to Fig. 2 is used at both ends of the slides 1 and 2, the guide 29 being mounted on a fixed fulcrum 30 spaced from the slide 1 and in line with the fixed fulcrum 17 and pivot points 18, the distance between the fixed fulcra 17 and 30 being equal to the distance between the guides 20 and 28. With this construction, if the slide 1 is traversed such that its guide 28 is always over the fulcrum 30 at the end of the right hand travel of the slide 1 then the slide 2 will always have the same extreme left hand position irrespective of the angle to which the guides 16, 29 are set. In this way the thread guide 3 will build up a thread package having a flat end surface at its left hand end and a conical surface at its right hand end, the taper of the conical end depending upon the rate at which the slide 22 is lowered. The construction according to Fig. 3 is stated to have a smoother movement of the guide member 19 and 27 as compared with the guide member 19 in Fig. 2.
Patent GB-1356657-A (GB)
Title: Superconductive electrical machines
IPC: H02K23/58
Filed: 1971-05-28
Abstract: 1356657 Superconducting machines SIEMENS AG 28 May 1971 [5 June 1970] 18108/71 Heading H2A A D.C. electrical machine comprises a rotor having a winding 3 and a non-electrically conductive shaft 2, a plurality of heteropolar exciting coils 1 arranged about the rotor and to be superconductive during operation of the machine, and a plurality of compensation coils 6 spaced from the rotor beyond the exciting coils 1, connected to carry the rotor winding current and so arranged that, during such operation, their field exerts on the exciting coils 1 a torque about the machine axis which opposes the torque exerted on the exciting coils by the rotor winding field. Preferably the torques mutually cancel whereby the exciting coils are free of a moment of reaction, the machine has no stator magnetic core, the rotor is non-magnetic, and the compensation coils 6 also assist commutation thereby taking on the function of commutating poles.
Patent GB-102959-A (GB)
Title: A Crucible Furnace for Melting Metals.
Inventor: PARSY PAUL VICTOR
IPC: F27B14/00
Filed: 1916-12-19
Abstract: 102,959. Parsy, P. V. Dec. 27, 1915, [Convention date]. Crucible furnaces.-In a gas-fired crucible furnace, a separate combustion chamber d is arranged at one side and beneath the level of the crucible chamber a, and has an inclined wall e, down which the slag flows to the outlet. Gas and air are suppliied from a flue h<1> and a regenerator i<1> respectively, to ports g at the upper part of the chamber d. When the cover c of the crucible chamber is lifted, the outlet flue j may be put in direct communication with the chimney flue k by lifting the damper l.
Patent GB-1092757-A (GB)
Title: Automatic regulation process and system for transmission channels
IPC: H04B3/10
Filed: 1965-04-30
Abstract: 1,092,757. Pilot controlled A.V.C. INTERNATIONAL STANDARD ELECTRIC CORPORATION. April 30, 1965 [May 4, 1964; April 5, 1965], No. 18250/65. Heading H4R. In a pilot controlled transmission system the pilot signal received at a receiving station is used to control the frequency of a control signal which is used to control the regulating devices of the transmission channel. Fig. 3 shows a two-way transmission system comprising transmission channels 1 and 2 including one or more gain controlled repeater amplifiers 5 and 6. Pilot signals are injected into the channels at 3 and 4 to traverse the system and to be received at points 9 and 10, at which points the pilot signals are extracted from the received signal and compared with a reference level signal, from sources 17 and 18, in the comparators 15 and 16. The difference signals from the comparators 15 and 16 are applied to generators 19 and 20 to produce control signals whose frequencies are dependent on the pilot signal level. The control signals are then applied to the transmission system for the opposite direction of transmission to that to which the corresponding pilot signal relates. These control signals are detected at the regulating station by extracting devices 11<SP>1</SP> and 12<SP>1</SP> and fed via frequency changing devices 35 and 36, switching circuit 29 and 30, limiters 37 and 38, and discriminators 39 and 40, to devices 41 and 42 which control the gain of amplifiers 5 and 6. The levels of the variable frequency control signals at the outputs of frequency changers 35 and 36 are fed to corresponding level monitoring devices and if the level of one of the control signals deviates greatly from the normal level, indicating a fault somewhere in the system, the respective switch 29 or 30 is operated to ignore the faulty control signal and use instead the control signal relevant to the other channel. Frequency changers 35 and 36 are provided to change the control signals, which may, for example, vary between 200 and 220 kc/s., to a lower frequency, varying say from 5 to 25 kc/s.,so as to make the frequency discriminator more sensitive. Preferably the frequency changer, e.g. 35, uses a fixed frequency oscillation fed into the line at the control station, e.g. from an oscillator 4, and the frequency changer comprises only a non-linear device and a filter in order to extract the difference frequency. In alternative embodiments the regulating stations for each direction of transmission are entirely separate, necessitating the duplication of the control signal extraction device at each station to provide emergency operation from the control signal for the other direction of transmission, Fig. 2 (not shown), while in Fig. 1 (not shown), the control signal is fed to the regulating stations over lines separate to those used for the transmission. It is also suggested that one regulating arrangement may control the gain of a number of lines for one direction of transmission.
Patent GB-832773-A (GB)
Title: Aircraft structure
IPC: B64C27/473
Filed: 1956-06-14
Abstract: 832,773. Aerofoil structures. PREWITT AIRCRAFT CO. June 14, 1956 [June 30, 1955], No. 18360/56. Class 4. An aerofoil structure, shown in the preferred embodiment as a helicopter rotor blade, comprises a laminated spar shell 26 which forms the nose section of the blade and is built up of thin sheets of metal adhesively bonded together and secured to a spar web 25 by laminated joint angles 42 and 43. The portion of the blade aft of the spar consists of upper and lower sandwich panels each consisting of an outer metal skin 39 on inner metal skin 40 and low density filler material 45. The skins 40 are secured to spar web 25 by laminated angle members 41 and hard blocks are inserted between angles 41 and 42 to enable adequate pressure to be applied during the jointing process. A joiner strip 44 of selected flexibility is positioned in the gap between panels 40 forward of their joint and stiffening strips 37 are inserted at the trailing edge of the blade to obviate the need to feather the filling material. The root end of the blade is reinforced by end laminations 33, 33a, internal doubling plates 27, and external doubling plates 28, 29 which are provided in way of blade attachment pin bushings 36 and 31. The bushing 31 carries two collars 47 having oppositely threaded ends for a threaded nut 46 whereby the nut 46 and a further nut 31a on one end of bush 31 may be used to clamp plates 27 and 29 and shell 26 together. The tip structure, Fig. 11, consists of an outer fairing 21a, an inner rib 21b, low density filler 21c and bolt seats 21d. This assembly is secured to the blade structure by bolts 59 which enter threaded holes in fittings 22, 24 which are hollow and closed by screws 58 to enclose ballast weights 57.
Patent GB-681801-A (GB)
Title: Improvements in or relating to matching arrangements for electromagnetic waveguides
Inventor: SETCHFIELD JOHN BERNARD
IPC: H01P5/04
Filed: 1951-08-03
Abstract: 681,801. Wave-guides. STANDARD TELEPHONES & CABLES, Ltd. Aug. 3, 1951, No. 18391/51. Class 40 (viii). An adjustable local impedance in a wave-guide comprises a rotatable circular disc 6 arranged to close a hole in the wall 1 of the guide, and a plug 8 is eccentrically mounted in disc 6 so that it may project an adjustable amount into the guide. As shown, the plug may consist of a screw fitting in a tapped hole in disc 6.
Patent GB-714804-A (GB)
Title: Improvements in or relating to organic esters
Filed: 1952-07-21
Abstract: The invention comprises gentisyl esters of p-aminosalicylic acid which are obtained by the action of gentisic acid on 2-hydroxy-4-nitro-benzoyl chloride or an acylated derivative thereof, hydrolysing if necessary, and reducing.  Preferably, 2 - carbethoxyoxy - 4 - nitrobenzoyl chloride reacts with gentisic acid in presence of dioxane and a tertiary amine followed by hydrolysis of the carbethoxy groups with alkali.  The two esters obtained, the 21- and 31-carboxy-41 - hydroxy - phenyl - 2 - hydroxy - 4 - nitrobenzoates, may be reduced by any convenient method.  An example is given, in which the two isomers are obtained from the reaction mixture of crude carboxy-nitro products which are first separated.  2 - Carbethoxyoxy - 4 - nitro - benzoyl chloride is obtained by the action of ethyl chloroformate on 4-nitro-salicylic acid followed by treating this with thionyl chloride.  Specification 669,061 is referred to.
Patent GB-1045144-A (GB)
Title: A workman's cradle adapted for suspension from a trolley
IPC: E04G3/30
Filed: 1962-05-14
Abstract: 1,045,144. Workmen's cradles. J. Z. JANUSZAJTIS. Aug. 14, 1963 [May 14, 1962], No. 18459/62. Heading E1S. A workman's cradle comprises a triangular platform 11 supported by a tubular frame 1, 4, 5. The frame comprises an L-shaped member 1 which can be disconnected at 3 from a U-shape member 4, 5, so that the cradle can be folded after diagonal struts 7 have been disconnected at 8. Wheels are provided on shafts 12 for engaging a wall or for towing the cradle behind a vehicle.
Patent GB-243776-A (GB)
Title: Improvements in electrical condensers
IPC: H01G2/00
Filed: 1924-08-02
Abstract: 243,776. Woodroffe, F. K., and Dawson, R. H. N. Aug. 2, 1924. No Patent granted (Sealing fee not paid). Receiving-sets, construction of.-Condensers of the kind wherein the metal plates are provided with dielectric separators and are pressed together between stiff plates by a single central screw, have outer metal pressure plates of substantial thickness and forming part of the effective area of the condenser. The capacity may be varied by varying the degree of pressure on the plates, a substantially equally distributed pressure being obtained. In Fig. 1, condenser plates 1 and dielectric plates 2 are clamped between thick rigid metal plates 3 by a screw 4, the terminals being at 1 Î and 7, the plates 3 forming part of the condenser and 6 being an insulating cap. In Fig. 2, the upper plate 3 is in the form of a cap and has an insulating bush 9 supporting terminals 1Î, 7, the first forming a clip a for a high resistance cartridge 10. In Fig. 3 a washer 11 is fitted between the screw 4 and terminal 7 and above it is a terminal 7Î in connection with the lower plate 3 so that by connecting terminals 7, 1 Î the cartridge 10 is in parallel with the condenser whereas if connections are made to the three terminals, the capacity and lead are in series.
Patent GB-969381-A (GB)
Title: Improvements in thermostats for controlling electric heater circuits
IPC: H05B1/02
Filed: 1962-05-14
Abstract: 969,381. Thermal switches. J. L. CRAVEN, and F. W. MAUL & SON Ltd. May 13, 1963 [May 14, 1962], No. 18485/62. Heading H2B. In a thermal switch for an electric heater circuit, the operating temperature is varied by adjusting a bimetal strip 15, by squeezing a cover 17 of flexible synthetic plastics material and turning a part 16a of a screw-threaded rod 16 which engages a bent part 15a of the strip 15. A bung 11 seals the container 10 as well as the cover 17 and provides mounting means for a support 13 which holds the strip 15, a dropper resistance R and a neon pilot light N which indicates when the heater is operating. The strip 15 carries a contact C 1  which co-operates with a contact C 2  mounted on the support 13. The cap 17 may have an outlet tube 18 for a cable C to the switch. The container may also hold the heater, Fig. 3 (not shown).
Patent GB-130341-A (GB)
Title: Improvements in or relating to Machines for Forming Rings having a Profiled Inner Surface.
IPC: B21D53/16
Filed: 1919-07-25
Abstract: 130,341. Aktiebolaget Svenska Kullagerfabriken. July 26, 1918, [Convention date]. Forging-machines; dies; mandrels.-A machine for making outer track rings for ball-bearings &c. by upsetting tubular blanks while held in a die. has a collapsible mandrel with two sets of jaws 1,2 relatively movable axially. The jaws 1 are pivoted to a rod 7 secured to a disk 8 and are arranged between the jaws 2. These are pivoted to a sleeve 15 raised by a spring 16 to project them as shown in Fig. 2, so that the blank can be placed around them. The upper die, Fig. 1, comprises a spring mounted wedge-block 27 to expand the jaws 1, 2 to the correct size and an upsetting sleeve 25. As this is brought down the blank placed around the projecting jaws 2, Fig. 2, the sleeve 3 and the jaws 2 are forced into the die 4 as shown in Fig. 3, until the sleeve 15 engages the tubular stop 17 supported by the disk 8, the spring 16 being compressed. Further movement causes the sleeve 25 to upset the upper edge of the blank, the spring 28 being compressed. At this stage the upper die holder 24 engages the die 4 so that further movement presses this down against the action of stronger springs 12 acting through a disk 11 and rods 20 and as this disk 11 also carries the disk 8 by means of the sleeve 9 the jaws 1, 2 move down with the die 4 and sleeve 25. The sleeve 3 however remains fixed as it engages the holder 5 and it thus upsets the lower edge of the blank. When the upper die is withdrawn the parts should resume the positions shown in Fig. 2, the jaws being free to move inwards to allow the removal of the ring. If the work sticks in the die 4, a blow on the-projection 33 will act through rods 31 and the sleeve 17 to force the jaws 2 and work out.
Patent GB-602887-A (GB)
Title: Improvements in or relating to ground working implements
IPC: A01B19/10
Filed: 1945-07-19
Abstract: 602,887. Agricultural implements. STEVENS, A. H. (Ferguson, Inc., H.). July 19,1945, No. 18511. [Class 6(i)] A tractor-drawn agricultural implement includes a number of horizontal tool frames 26 all forwardly connected to a transverse drawbar 37 having fixed thereon upright arms 40, 43, 45, some of which are connected to the power-lift links 21 on the tractor and others to the rear ends of the frames by lost-motion linkage 41 so that the frames may be lifted bodily on operating the power-lift. The invention is shown applied to a spring- tooth harrow, the tines 30 of which are mounted on parallel horizontal shafts 31 journalled on the frames 26. The tines may be manually lifted in unison by a lever 33 operating on the shafts 31 through links 34, 35. The tractor is provided with a pair of laterally-spaced links 21 connected to arms 43 on the drawbar and to the powerlift arms 11 by rods 25. A single upper link 23 connects a further upright arm 45 with linkwork 17, 19 forming part of an automatic depth-control system. The lostmotion connections between the arms 40 and the rear of the frames comprise rods 41 having looped ends 42 each embracing the rearmost shaft 31 on a frame, limited fore-and-aft tilting of the frames being thus permitted. Limited lateral tilting is also permitted. For multigang harrows, Fig. 7, the drawbar 37 is made in sections, the outer sections 37c being foldable inwardly for transport.
Patent GB-403721-A (GB)
Title: Improvements in and relating to apparatus for filtration
IPC: B01D29/00
Filed: 1932-06-30
Abstract: 403,721. Filters. WILDERMAN, M., Villa Meurice, Rue Bosio, Monte Carlo. June 30, 1932, No. 18554. [Class 46.] Filter apparatus comprises a casing with detachable ends and containing a number of double filter plates or single plates with internal channels, the plates being made of porous ebonite, soft-to-hard rubber or other rigid porous material and being arranged vertically with intermediate spaces so as to allow of the formation of cakes or deposits on the faces of the plates and the free expansion or contraction of the plates due to temperature changes. Plates as described in Specifications 358,526, and 307,525, [Class 46, Filtering &c.], may be used. Fig. 1 shows an arrangement in which plates 4 are supported in a casing 1 of rectangular cross-section on transverse bars 15. The plates are spaced apart in notches in horizontal bars fixed to the sides of the casing. The filtrate passes from the interior of the plates through pipes 8 and a main 10. Fig. 4 shows a modification in which the casing 1 is of circular cross-section. The liquid under treatment may be circulated through the casing entering through a pipe 16 and leaving through a pipe 20. The bottom 17 is normally bolted to the casing but when the bolts 22 are loosened, it can be let down by means of screw devices e, Fig. 7, provided in connection with each flange 25, so that wheels b rest on rails 26 and the bottom can be drawn aside. Cakes or deposit can then be removed simultaneously from all the plates by admitting water or air under pressure either through a pipe 19 in the top of the casing or to the interior of the plates, The devices shown in Fig. 7 may be provided for the lid as well as for the bottom of the casing. To facilitate the detachment of the solid matter the plates may be narrower at the bottom than at the top. Fig. 9 shows a horizontal cross-section of another modification in which the plates are supported on a framework moving on rails within the casing and extending outside it. Alternate plates are connected to outlet pipes 10 at opposite sides of the casing so that water for washing the cakes can be admitted through alternate plates and discharged from the others. When joints 33 are disconnected and the cover 31 removed, the plates can be removed as a single unit from the casing for cleansing. A filter-aid such as asbestos may be deposited on the plates before filtration starts. Provision may be made for heating the liquid under treatment in the filter. Metal surfaces within the filter may be lined with rubber.
Patent GB-1584537-A (GB)
Title: Data processing
IPC: G06F11/07
Filed: 1978-05-10
Abstract: For the sequential tracing back of completed elementary operations in an error case, an elementary operation memory (EO-M) is provided for temporarily storing a multiplicity of successive microprogram addresses. The storage spaces are addressed by a cyclic up/down counting arrangement (Z1, Z2) which, in the normal operating condition of the DPS, receives counting clock signals (T1) derived from a system clock and, in the error case, counting pulses triggered by a key switch (TS). The memory output lines are connected to one light-emitting diode each of a field for the visual indication of a microprogram address read out. The device simplifies fault finding and enables stored microprogram addresses to be indicated and read in the reverse order of storage. This makes it possible to locate uncorrectable errors in a microprogram-controlled data processing system. <IMAGE>