baber/WOPTO huggingface dataset:
Patent GB-1261597-A (GB)
Title: Improvements in or relating to superconductors
Inventor: WOOLCOCK ALAN
IPC: H01B12/16
Filed: 1969-06-19
Abstract: 1261597 Superconductors IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 4 June 1970 [19 June 1969] 31083/69 Headings H1A A5 A4B and A4D A superconductor assembly comprises a stabilized superconductor wire wound helically round a normally conductive tube. As shown, a plurality of wires 61 are wound round and soldered to a tube 60 of Cu, Al, or stainless steel. Each wire comprises a plurality of superconductor filaments 62 embedded in a normal metal matrix 63. The filaments in each wire may be twisted about one another to improve the stability of the conductor. Some of the wires 61 may be replaced by solid Cu wires and some by strengthening wires of stainless steel. More than one layer of wires may be provided on the tube which may have a cross-section different from that shown. The super-conductor material may be Nb44wt. per cent Ti embedded in a matrix of Cu, Cu base alloy, e.g. Cu-Ni, Al, In or Ag. Filaments of strengthening material, e.g. stainless steel or strong Ti alloy may be incorporated in the wires or the assembly may be secured to strengthening tape. The assembly may be wound to form an electromagnet.
Patent GB-943267-A (GB)
Title: Improved metallurgical process
Inventor: PEARSON THOMAS FELIX
IPC: C21C5/56
Filed: 1960-09-09
Abstract: A process of producing steel comprises blowing oxygen into a vessel having a refractory lining and initially a bath of liquid iron or steel to which additions of iron ore and a reducing material are made and inducing relative movement between the bath and those parts of the lining heated by combustion within the vessel.  The vessel may be cylindrical, mounted for rotation about its longitudinal axis, have both ends open or have an opening in one end only, and may be mounted with its longitudinal axis inclined 20-30 degrees to the horizontal. The reducing agent may be a carbonaceous material and may be added in excess of the reduction requirements, the excess burning to provide the necessary heat.  The ore and carbonaceous material may be in pulverized form.
Patent GB-830888-A (GB)
Title: Improvements in pressure-medium feeding devices for moving cylinders or the like
IPC: F16L27/10
Filed: 1958-09-30
Abstract: 830,888. Pipe joints. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. Sept. 30, 1958 [Oct. 4, 1957], No. 31147/58. Class 99(1). A pressure-medium feeding device for a reciprocating cylinder 1 provided with a pipe 4 guided telescopically therein comprises a stationary connecting part 3 fitted between a feed pipe elbow 2 and the cylinder 1, the part 3 having a bore 6 for receiving a flange 5 of the pipe 4 and the flange 5 being arranged between packing rings 8, 10 and plate rings 7, 9. As shown, the packing ring 8 is lip-shaped and is pressed against the base of the bore 6 and against the flange 5 by the pressure-medium entering the bore 6 through equalising bores 11. The area of the surface 12 at one end of the pipe 4 is equal to that of the surfaces 13, 14 at the other end so as to balance out the action of the pressure-medium thereon.
Patent GB-1056677-A (GB)
Title: Improvements in or relating to an electrical switch
IPC: H01H50/20
Filed: 1964-08-04
Abstract: 1,056,677. Electromagnetic relays. VITRAMON Inc. Aug. 4, 1964 [Jan. 8, 1964], No. 31237/64. Heading H2B. On energization of coil 32 armature 28 is attracted to release a spring restraining member 19 from engagement with contact blade 18a to permit the blade to engage a fixed contact 17a. The armature displacement is such that the member 19 is completely disengaged from the contact blade 18a whilst it engages fixed contact 17a and thus no vibration is transmitted from the armature to the contacts 17a, 18a.. The coil is enclosed in a magnetic housing 12 whose end plates 23, 24 have bosses 27, 26 which project into and support the coil. The displacement of the armature is adjustable by screw 30 in end plate 23. The contacts are enclosed in a separate housing 13. The armature has a coating 36 to prevent sticking.
Patent GB-832728-A (GB)
Title: Improvements in or relating to the straining of liquids
IPC: E02B8/02
Filed: 1957-10-08
Abstract: 832,728. Filters. AMES CROSTA MILLS & CO. Ltd., and BOLTON, J. F. Sept. 25, 1958 [Oct. 8, 1957], No. 31387/57. Class 46. A filter screen 11 is an open channel 12 comprises curved bars 10 forming a part-cylindrical surface which are periodically scraped by a rake 18 which rotates about an axis 14, coincident with the axis of the screen, during its normal operative or upward stroke and the rake is retracted from the screen during its inoperative or downward stroke. In the form shown the rake 18 is carried by two telescopic arms 16, connected by a structure 25, fixed to a tube 15 rotatable about the axis 14. The tube 15 carries two arms 22 connected to hydraulic rams 19 which provide the rotational movement and a ram 28 is connected to the mid-point of spindle 15 and the structure 25, actuation of the ram 28 providing, through the telescopic arms, the retraction and reinsertion of the rake from the screen 11. In an alternative arrangement in Figs. 4-6 (not shown), the arms are rigid and the retraction of the rake is provided by a ram which moves the pivoted axis of the rake. In operation, with the rake in the position shown, the rams 19 move the rake upwards to clean the screen the rake passes a pivoted shoot 30 and is engaged by a pivoted scraper 32, the ram 28 is then actuated to retract the rake and the screenings are scraped off by the scraper 32 and fall into the shoot 30 to a channel or conveyer 34. The rake is then moved downwards by the rams 19 to its bottom position where the ram 28 is actuated to reinsert the rake into the screen. The inoperative position of the rake is in its upward retracted position clear of the channel. A lost motion connection is provided between the arms 22 and the rams 19 and relief devices are provided in the hydraulic circuit to allow for certain conditions. If a blockage such as a piece of wood becomes lodged at the bottom of the screen the rake is held retracted until the rams 19 raise the screen above this blockage when the rake is reinserted. Further if the blockage occurs further up the screen the rake on meeting the obstruction is retracted until it moves past the blockage when the rake is reinserted. If a large quantity of screenings collect during the inoperative time of the use of the rake, the rake on moving downwards penetrates these screenings to a certain extent and is then prevented from completing its downward stroke. The lost motion connection allows the rams 19 to complete their downward stroke and the rams 28 then reinserts the rake and part of the screenings are removed. Subsequent strokes of the rake gradually clear all the accumulator screenings.
Patent GB-1446335-A (GB)
Title: Thermal insulation
IPC: F16L59/05
Filed: 1973-07-02
Abstract: 1446335 Helicopter rotors; aircraft wings SUMMA CORP 2 July 1973 [17 July 1972 18 April 1973] 31452/73 Heading B7W [Also in Divisions F2 and B5] Hollow helicopter rotor blades of honeycomb construction through which engine exhaust gases are vented are lined with laminated thermal insulation material bonded to the blade inner surface 22 by an adhesive scrim layer 29, the insulation material comprising a radiation shield of stainless steel foil 43, a stainless steel wool layer 25 and an outer layer of stainless steel wire mesh 21 held together by stitching or stapling with stainless steel wire 27. In an alternative form of insulation, the single layer of metal wool is replaced by two layers separated by a foil 43. Aircraft engine exhaust stacks 84 of glass fibre-epoxy resin plastics or aluminium are lined internally with an all-metal stainless steel thermal insulation laminate formed by stapling together outer wire mesh layers 69, 73 sandwiching alternating layers of metal wool 65 and metal foils 75. In another arrangement the stack is formed by the insulation material alone, the outer mesh layer being impregnated with a rubber mastic and reinforced externally by a helically wound aluminium wire and spaced ring stiffeners. The leading edge of an aerofoil 103 (Fig. 15, not shown) may be insulated by a stainless steel sandwich of alternating wire mesh layers and metal wool layers. Impervious stainless steel foil barriers may be disposed to extend between the inner and outer mesh layers. Fire retarding walls disposed between engines and fuel tanks and between wings and fuselage are formed by a stainless steel insulation blanket comprising outer mesh layers embracing two metal wool layers separated by a foil layer. Optionally a separate structural member may be provided to which the blanket is secured. The Specification refers to the use of refractory metals in place of stainless steel and to coatings of corrosion-resisting and thermal emissivity reducing coatings.
Patent GB-386744-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K27/10
Filed: 1931-11-13
Abstract: 386,744. Alternating-current commutator motors. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, and POLLOCK, A. A., Croxton House, Sherbourne Place, Leaming- ton Spa. Nov. 13, 1931, No. 31495. [Class 35.] In a motor started as a commutator motor and subsequently converted into an induction motor by short-circuiting the commutator and raising the brushes, the brushraising mechanism has an actuating member 10 biased as by a spring 11 to an operative position but prevented from moving when the motor is at rest by a speed-responsive device such as pivoted weights 12, the rate of movement of the actuating member being determined when the motor is running by cam action between the speed - responsive device and the actuating member or a member such as a cupped plate 16 associated therewith. The weights 12 have projections 14 engaging a washer 15 adjacent the short-circuiting disc 3. The shape of the member 16 is such that during the first part of the movement of the weights 12, the disc 3 moves against a spring 17 to short-circuit the commutator 2. At a predetermined speed, the conical surface 16b allows the members 16, 10 to move under the action of the spring 11 so that the brush 7 is raised by the pivoted arm 8. As the motor reaches its normal speed, the weights engage a lip 16c on the member 16 thus moving this member away from the plate 10. The plate 10 may slide within the motor casing or it may be pivoted to the lower part. Three weights 12 are preferably provided or there may be a number approximately equal to the number of commutator segments each provided with a projection contacting directly with the commutator. The controlling spring may be a band placed round the free ends of the weights. Specification 308,416, [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-677414-A (GB)
Title: Improvements in or relating to photographic film-processing machines and film hanger for use therewith
IPC: G03D3/13
Filed: 1950-12-28
Abstract: 677,414. Photographic developing apparatus. KODAK, Ltd. Dec. 28, 1950 [Dec. 29, 1949], No. 31497/50. Class 98 (ii). The apparatus comprises a pair of spaced endless chains movable through a processing tank and formed with pairs of aligned, inwardly extending pins, and a film hanger consisting of a pair of rods, each of which is formed of telescoping members normally spring-pressed apart, detachably connected to longitudinally spaced pairs of aligned pins for movement with the chains through the processing tank, means for detachably connecting opposite ends of a film to said rods, and means for tensioning the film between said rods. The apparatus may comprise several processing tanks through which the film is passed by a pair of endless chains 12, Fig. 2, which are continuously moved at the same speed so that pins 14 thereon remain in alignment. Rods 20, each of which fits over the aligned pins of a pair, support at intervals along the length of the chains film sheets 32. Each rod 20 consists of telescoping tubes 21, 22, Fig. 5, which are normally held apart by a spring 28 anchored at 29 to tube 22 and pressing against a rod 24 which slides within tube 22 and is secured at 25 to tube 21. The upper rod 20 has clips 31 thereon from which the film sheet 32 is suspended and the lower rod 20 is spring connected at 35 to a bar 34 having clips 33 therein for attachment to the film. In a modification, Fig. 3 (not shown), one member of the upper rod has roll film spools rotatably mounted thereon and the free end of each film passes through a slot in a bar spring connected to the lower rod. This bar has several pins which pass through the slots and through holes in the free ends of the films.
Patent GB-790920-A (GB)
Title: Manufacture of úý-and/or úõ-aminomethyl-(3:4-dihydroxyphenyl)-carbinol
Filed: 1954-11-01
Abstract: d.l -Aminomethyl -(3 : 4 -dihydroxyphenyl)-carbinol is separated into its optical antipodes by treating it with l- or d-mandelic acid or an ether thereof in the presence of an anhydrous aliphatic alcohol, separating the diastereoisomeric salts by fractional crystallization and, after further recrystallization if desired, isolating l- and/or d-aminomethyl-(3 : 4-dihydroxyphenyl)-carbinol from the amine salt or salts.  The two optical antipodes are isolated from the crystals or the mother liquors respectively.  In examples: (1) d.l-aminomethyl-(3 : 4-dihydroxyphenyl)-carbinol is treated with the methyl ether of l-mandelic acid in anhydrous ethanol, the salt of l-mandelic acid with the l-form of the aminocarbinol is separated as crystals and l-aminomethyl - (3 : 4 - dihydroxyphenyl)-carbinol is liberated from the salt by treatment with aqueous hydrochloric acid; (2) methanol is used in place of ethanol in the process of (1); (3) d-mandelic acid methyl ether is used in place of the l-isomer in the process of (1) whereby the salt of d-aminomethyl-(3 : 4-dihydroxyphenyl)-carbinol is crystallized and converted into the free base by precipitation with ammonia, the mother liquors being concentrated and treated with ammonia to precipitate the l-base; (4) l-mandelic acid is used in place of its methyl ether in the process of (1); and (5) the process of (4) is repeated using n-propyl alcohol as a solvent in place of ethanol.
Patent GB-1096931-A (GB)
Title: Improvements in or relating to devices for supporting the human head for clinical purposes
Inventor: BINSTEAD HUGH CECIL
IPC: A61B19/00
Filed: 1963-08-09
Abstract: 1,096,931. Head support. UNITED KING- DOM OPTICAL CO. Ltd. Aug. 10, 1964 [Aug. 9, 1963], No. 31563/63. Heading A5R. [Also m Division G2] A device for supporting the head during clinical examination or treatment thereof comprises carrier means on which is mounted a pair of laterally spaced pads for engagement with the underedges of the cheek bones to support the head without imposing restraint on the lower jaw. The cheek pads may be resilient and the faces of the pads may be flat, convex or concave. As shown optical apparatus comprises cheek pads G2 mounted on members G1 by means of universal joints, the members G1 being mounted for vertical and angular adjustment on the rods G. The apparatus also comprises forehead rest G5, hand grips G6, slit lamp apparatus A for illuminating the eye and a microscope B (or photographic camera). The illuminating means A and microscope B are independently rotatable about mounting D on the plate E which is movably mounted on base plate F to allow each eye to be examined.
Patent GB-451320-A (GB)
Title: Improvements in or relating to x-ray installations
IPC: H05G1/60
Filed: 1935-11-14
Abstract: 451,320. Electricity supply; supply systems for discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Nov. 14, 1935, No. 31573. Convention date, Dec. 6, 1934. [Class 38 (iv)] [See also Group XL] Condenser arrangements.-In an X-ray installation for making cinematographic, stereoscopic, or other series exposures, two or more condensers are discharged across the X-ray tube in succession, each making one partial exposure. Each condenser on discharge is preferably reconnected immediately to a common source of current which charges the condensers with regularly overlapping charging times. In the form shown in Fig. 2, condensers 1... 4 are connected through switches 18 .. 21 and rectifiers 11 ... 14 across the secondary winding of a transformer 5. Connections are taken from the condensers to the contacts 24 ... 27 of a rotating switch the arm 23 of which is connected to the anode of the X-ray tube 22. The switch arm 23 is mechanically connected to a Geneva mechanism 35 which drives a cinematograph film, and also to a switch 33 adapted to apply negative bias to a control electrode 30 between the anode and cathode of the X-ray tube. The Specification describes in detail the timing of this arrangement, which ensures that the tube 22 discharges only while the film is stationary, each condenser being discharged in succession and charged for a period exceeding three times the discharge period. Ballast resistances 7 ... 10 and the rectifiers 11 ... 14 isolate the condensers from each other. The switch 33 and auxiliary electrode 30 may be replaced by a switch in the lead to the anode. In a modification, the switches 18 .. 21 are replaced by grid-controlled discharge tubes, the grids of which are successively rendered negative by a rotating switch, and the switch 23 is replaced by four similar switch tubes the grids of which are controlled by synchronous switches similar in arrangement to 18..21. No auxiliary electrode is used in this arrangement. The switches 18 ..21 may each comprise an insulating disc in which is embedded a conductive strip adapted to connect two contacts disposed one on each side of the disc. Switches of the type described in Specification 385,757, [Group XXXVII], may also be used. Specifications 420,637, [Group XL], and 451,319 also are referred to.
Patent GB-928681-A (GB)
Title: Improvements in or relating to the extraction of corticotrophin
Inventor: MCKERNS KENNETH WILSHIRE
IPC: A61K38/35
Filed: 1959-09-16
Abstract: Corticotrophin is obtained from fresh or acetone-dehydrated animal pituitary glands by extraction with an aqueous, acid, organic solvent mixture containing a major proportion, e.g. 65-80%, of a water-miscible aliphatic alcohol and/or ketone, e.g. ethanol or acetone, the solvent mixture being heated during at least a part of the extraction operation to a temperature at which at least some of the inert proteins are denatured.  The pH of the solvent mixture may be between 1 and 3 and is preferably about 1.5.  After extraction, the supernatent may be decolorized by contacting with charcoal which has previously been treated with a reducing gas, e.g. H2S, the pH being maintained below about 2.  Further purification is effected by the selective precipitation of protein by the addition of a water-soluble zinc salt, e.g. the acetate or chloride and the adjustment upward of the pH by addition of caustic soda solution. Below pH 4.45 the unwanted protein is precipitated and may be removed.  Continued upward adjustment causes the almost quantitative precipitation of a zinc-corticotrophin complex between pH 4.45 and about 5.85. This may be collected, e.g. by centrifugation at low temperature (0 DEG  C.), washed and decomposed by acidification to pH 3.5-4.5 to give a solution of corticotrophin from which, after filtration, it may be adsorbed by a mixture (preferably 1 : 1) of oxycellulose and a cation-exchange resin having functional carboxylic acid groups and subsequently eluted by treatment with 0.1 NHCl.  The purified corticotrophin may then be precipitated from the eluant by the addition thereof to a large volume of cold acetone. Specification 928,682 is referred to.
Patent GB-175369-A (GB)
Title: Improvements relating to locks or latches for use on motor vehicles and other purposes
IPC: E05B65/22
Filed: 1920-11-10
Abstract: 175,369. Wilkes, J., and Wilkes & Sons, Ltd., S. Nov. 10, 1920. Latches, sliding; striking- plates for locks and latches. - In order to compensate for any drop of a door on its hinges, one or more guiding-surfaces provided in or on a striking-plate are disposed between or on both sides of the paths of two simultaneously operated, spring-pressed bolts so as to co-operate with the bolts or a projection on the latch casing. As shown in Fig. 4, the spring-pressed bolts 2 are connected by a crossbar 3 provided with a spring-pressed portion 16 on which a pin 14 on the lever 17 operates to withdraw the bolts. The conical ends 10 of the bolts 2, bevelled on one side, engage in inclined recesses 19 in the striking-plate 18, Fig. 5, the recesses 19 being provided with tapered sides 20 and leading to conical recesses 21. In the modification, Figs. 8 and 9, the rectangular bolts 30 slide up inclines 40 on the striking-plate 39 and drop over shoulders 41, a projection 42, having inclined sides, then serving as a guide to the bolts. The springs 37 for the bolts 30 are carried on rods 35 into the ends of which screws 36 are inserted. In a further modification, a projection may be provided on the latch casing between the bolts to engage with a recess, having inclined sides, in the striking-plate. Apparatus as described in Specification 169,792 may be used with the latch.
Patent GB-1099927-A (GB)
Title: Apparatus for measuring the rotational motion of a shaft
Inventor: WEIR ROBERT JAMES
IPC: G01D5/14
Filed: 1965-07-26
Abstract: 1,099,927. Measuring speed electrically. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 13, 1966 [July 26, 1965], No.31782/65. Heading G1N. A shaft 10 is provided with magnetic studs 11, 12 which co-operate with an external permanent magnet 14 to change the flux through a Hallplate element 15 twice in each revolution of the shaft. Thus the speed of rotation of the shaft is determined by the frequency of the pulse train from the element 15, when energized with D.C. The magnet 14 forms the centre limb of a closed cylindrical soft iron yoke 13, and the whole assembly is potted in an epoxy resin.
Patent GB-814839-A (GB)
Title: Improvements in and relating to false-twist spindles for the crimping of threads
IPC: D02G1/06
Filed: 1956-10-19
Abstract: 814,839. Twist-tubes. ONDERZOEKINGSINSTITUUT RESEARCH N. V. Oct. 19, 1956 [Dec. 30, 1955; Aug. 22, 1956], No. 31971/56. Class 120(2) A false-twist spindle by means of which a thermoplastic thread 11 may be crimped comprises a rotatable tube 3 having detachably secured to its head a twist-imparting device consisting of a horizontal cylinder 8 of synthetic sapphire, diamond or agate having a bore 9 at right angles to the axis of rotation of the tube 3, the upper part of the cylinder wall being free of the tube head and having a portion of reduced thickness e.g. the cylinder has an eccentric bore or a concentric bore and a part of its periphery which is flat, concave or convex and of enlarged radius, Figs. 3-6 (not shown). The tube is driven by a belt engaging a part 7 constructed as a pulley.
Patent GB-852896-A (GB)
Title: Improvements in or relating to fluid pressure motors
Inventor: HANS KURT
IPC: F03C1/06
Filed: 1957-10-14
Abstract: 852,896. Fluid-pressure engines. INSTITUT FUR FORDERTECHNIK DES MINISTERIUMS FUR SCHWERMASCHINENBAU. Oct. 14, 1957, No. 32072/57. Class 122 (3). [Also in Group XXIX] A fluid-pressure engine of the axial cylinder type has a pair of oppositely-acting pistons 3 in each cylinder which act against plates 6 which have lumps 7. In a radial cylinder embodiment, the cam surface 6 on which the pistons 3 act has similar lumps 7. Both types have a central distribution valve 8 and can either be of fixed cylinder or rotating cylinder type.