baber/WOPTO huggingface dataset:
Patent GB-1211817-A (GB)
Title: Unsaturated polyester compositions
IPC: C08K5/00
Filed: 1969-06-30
Abstract: 1,211,817. Unsaturated polyester compositions. SOC ITALIANA RESINE S.p.A. 30 June, 1969 [15 July, 1968], No. 33013/69. Heading C3P. Stable and photochemically hardenable unsaturated polyester compositions comprise: (a) an unsaturated polyester prepared by mixing styrene with a polycondensation product of a hydroxyl number not below 40, formed from a polycarboxylic acid and a polyhydroxylic alcohol, wherein the acid or alcohol contains non-aromatic unsaturation, the polycarboxylic acid being optionally partially replaced by a saturated dicarboxylic acid; (b) a stabilizing system composed of 200 to 800 p.p.m., by weight of the polyester, of an alkyl phosphite or aryl phosphite and 10 to 50 p.p.m., by weight of the polyester, of a copper salt of an organic acid; and (c) 0À1 to 5.0%, by weight of the polyester, of benzoin or a benzoin derivative having an alkyl group of 1 to 8 carbon atoms in the alpha position. In the examples the compositions comprise a polyester derived from propylene glycol, fumaric acid and phthalic acid, styrene, benzoin-bisphenol polyester resin powder, hydroquinone, copper naphthenate solution, triphenyl phosphite and p-tert-butyl catechol and are irradiated with ultra-violet light on a glass plate.
Patent GB-726681-A (GB)
Title: Electromagnetic relay
Inventor: TANCRED WILLIAM LAWRENCE
IPC: H01H51/28
Filed: 1952-12-31
Abstract: 726,681. Electromagnetic relays. BORG CORPORATION, W. N. Dec. 31, 1952, No. 33091/52. Class 38 (5) An electromagnetic relay comprises a non- magnetic, non-conducting tube 1 having a pair of magnetic cores 2 spacedly arranged therein in co-axial relation; a pair of magnetic armature elements 21 slidably guided within the tube and together of insufficient length to bridge the distance between the cores 2 and solenoids 8 surrounding the cores 2 so that when the solenoids are energized the armatures separate from each other and contact the ends of the respective cores. The armature elements are cup shaped and are connected together internally by a spring which urges the two elements together when the solenoids are de-energized. The cores 2, the armature elements 21 and the spring form parts of the switch portion of the relay so that a circuit exists when the relay is energized between the terminal screws 5. Various embodiments are shown in which the relay may be of the normally closed and normally open type; in which the spring member may be replaced by a flexible conducting member and the return force supplied by a solenoid which surrounds the armature elements, in which the cores have separate conductors extending therethrough and in which the tube 1 only surrounds the armature elements. In the normally closed type of relay the cup shaped armature elements are reversed and in the normal position are urged together by springs which contact the ends of the cores. In all the embodiments the contact surfaces may be silver plated or the like.
Patent GB-1374829-A (GB)
Title: Manufacture of plastics parts
IPC: B29C41/22
Filed: 1972-07-14
Abstract: 1374829 Moulding multi-layered plastics parts MATEC HOLDING AG 14 July 1972 33180/72 Heading B5A A process for making a multi-layer plastics, part comprises -depositing a first pulverent plastics material on a heated surface of a mould to cause the formation by melting of a plastics layer thereon, moving the mould with the layer at a temperature below the melting point of the layer through a curtain of downwardly flowing heat-curable plastics material to form a second layer which is thicker than the first, causing the second layer to cure at a temperature below the melting point of the first layer, and, optionally applying further layers similarly to the second layer, before finally removing the part from the mould. The second layer may comprise additives, e.g. plasticizers, solvents, bitumen tallows fillers; or catalysts. The mould is formed with a surface of cast aluminium. The first layer can be deposited by a fluidized bed or by an electrostatic device.
Patent GB-670160-A (GB)
Title: Improvements in or relating to glazing bars
IPC: E04D3/08
Filed: 1949-12-29
Abstract: 670,160. Glazing. MELLOWES & CO., Ltd., and MARKWELL, R. T. Dec. 18, 1950 [Dec. 29, 1949], No. 33189/49. Class 20(iii) The thickened edge of a flexible metal glazing strip 20 correspondingly dovetailed to the dovetailed groove in the flange 15 of a glazing bar 1 is compressed into the confines of the groove by pressure exerted along a longitudinal channel 22 in the strip opposite the base of the dovetail after insertion of the thickened edge into the groove. The pressure may be applied by rollers acting along the longitudinal channel 22.
Patent GB-1476512-A (GB)
Title: Light emitting digital display device
IPC: G03B17/18
Filed: 1974-07-26
Abstract: 1476512 Indicators FUJI PHOTO OPTICAL CO Ltd 26 July 1974 [28 July 1973]  33193/74 ,Heading G2A [Also in Division G5] A display device comprises a figure of eight array of L.E.D's; the right hand upper segment being bent into alignment with the upper horizontal segment and the right hand lower segment extending to the level of the bottom segment. The left hand portions of the upper and lower segments are also bent into alignment with the left hand vertical segments. The device is used to indicate shutter speeds or F numbers in a camera viewfinder.
Patent GB-190473-A (GB)
Title: Improvements in or relating to the valve gear of heat engines
IPC: F01L1/30
Filed: 1922-12-06
Abstract: 190,473. Etablissements Industriels J. Bignan. Dec. 17, 1921, [Convention date]. Cam gears; slide valves, piston.- Positive face-cam gear for controlling the valves of steam or other heat engines comprises a cam 3 rotating between a pair of rollers 4, 4<1> mounted on coaxial slides 5, 5<1> and pressed on to the cam by a spring 6. The slide 5 engages also between stops 8, 8<1> on the valve stem 9, a spring 11 being inserted between the slide and the stop 8. A similar arrangement of slides 5<a>, Fig. 2, may be provided for the second valve of the cylinder, and the two valves of a second cylinder may be actuated by a second cam 3<1>, Fig. 1, arranged at 180‹, and rotating in the opposite direction, to the cam 3. The two cams are shown driven by bevel-gear 13, 13<1>, 14. In modifications, the slides 5, 5' are coaxial with the valve stems 9; or, in the application to piston slide valves, the slide 5 engages directly between stops 8, 8<1> provided on the stem of the valve, without the interposition of springs.
Patent GB-1260692-A (GB)
Title: Improvements in and relating to optical shutters
IPC: G02B5/00
Filed: 1969-07-02
Abstract: 1,260,692. Nuclear explosion operated optical shutter. IMPULSPHYSIK G.m.b.H. July 2, 1969 [Dec.18, 1968], No.33372/69. Heading G1A. An optical shutter 7, Fig. 2, arranged to close automatically in the event of a nuclear explosion comprises a translucent chamber in the optical path, and lamp black or graphite, injector charges whereby the lamp black may be blown into the chamber to blacken the chamber wall, and an electrical charge detonator 17 responding to the dual detection of an electromagnetic pulse of a predetermined rate of rise in intensity by a sensor, followed within a predetermined time period by the detection by an optical sensor of a light pulse of 4000-6000 A of a predetermined rise time. The charges and graphite are in cartridge form 3 and are spaced around the periphery of the chamber, which may be two parallel translucent plastics plates 12 sealed at their edges. The light is detected by receivers 15 and led to a transducer 16 by guides 23 or may be detected directly by atransducer 16. The charges which are readily replaceable may be alternately wired in separate detonator circuits 10 and the chamber may include a motor driven wiper 8 for cleaning the deposit from the plates after use. The lamp black in the cartridge may be lightly sealed by a plastic sprayed on its surface and may include cartridge or granule dessicator material. An apparatus capable of emitting the said magnetic and optical waves may be provided for test purposes.
Patent GB-1152838-A (GB)
Title: Method of Constructing Buildings From Large Prefabricated Slabs, and Constructional Elements therefor
Inventor: RUPRECHT ALFRED
IPC: E04B1/04
Filed: 1966-07-25
Abstract: 1,152,838. Slab walls. A. RUPRECHT. 25 July, 1966 [27 July, 1965], No. 33413/66. Heading E1B. Reinforced-concrete wall slabs 12, with or without superposed single or double ceiling slabs 14, are supported by internal steel columns which are built up, by interconnecting tubes 16, 19 having lengths equal respectively to the height of the wall slab and the thickness of the ceiling slab adjacent columns of juxtaposed wall slabs being interconnected by horizontal link plates 22. As shown the tubes have centering flanges 17, 18, 20 and each slab is apertured for lowering over a fixed tube 16 with the assistance of a removable centering cone. In a modification the tubes 16, 19 are cast in the slabs. The horizontal link plates, Figs. 7-10 (not shown) may be rectangular or cruciform and may be of steel or a steel/rubber sandwich. A similar plate may be inverted in the horizontal joint intermediate the plates 22. The space around a tube 16 may be filled with fire-resistant material. In a modification the threaded ring forming the flange 17 is replaced by a ring welded to the plate 22. Each slab may be of slag or expandible concrete and preferably has a metal frame connected to its steel reinforcement. The wall slab 12, Fig. 1, has at least two channels 13 for the tubes 16 and may also have channels lined with foamed plastics 36 for service conduits or air conditioning, and channels filled with glass wool or other insulation which may be bound with cement. The webs between channels may be divided by plates 35 of foamed insulating material.
Patent GB-190168-A (GB)
Title: Improvements in means for flattening the current waves of pulsating direct current
IPC: H02M1/14
Filed: 1922-12-08
Abstract: 190,168. Haighton, C. A. A. Dec. 10, 1921, [Convention date]. Converting alternating and direct currents. - The current waves of a pulsating direct current, such as that delivered by a rectifier, are flattened by connecting in the direct-current circuit a loose contact, the resistance of which is controlled by an electromagnet energized with the frequency of the current pulsations. In the arrangement shown, a rectifier is connected to terminals b of the direct-current apparatus through a microphone comprising carbon granules c and an iron diaphragm d. The electromagnet e controlling the resistance of the microphone may be connected across the terminals a as shown, or it may be inserted in the alternating-current circuit of the rectifier. An electrolytic cell f, which may comprise lead plates in a solution of alum, is also inserted in parallel with the terminals a. When the voltage at the terminals a is above its mean value energy is accumulated in the cell f. and this energy is restored to the circuit when the voltage falls below the mean value. Choking-coils may also be inserted in the direct-current circuit.
Patent GB-891493-A (GB)
Title: Improvements in colour television camera systems
IPC: H04N9/09
Filed: 1958-10-21
Abstract: 891,493. Colour television. COMPAGNIE FRANCAISE DE TELEVISION. Oct. 21, 1958 [Nov. 5, 1957], No. 33620/58. Class 40(3). A panchromatic camera 1 having a strip or mosaic filter 2, Figs, 2 and 3 (not shown), comprising juxtaposed elements of three primary colours, which is located in a non- focal plane and serves to determine precisely the spectral distribution of light reaching the camera, is associated with further cameras 4, 5 for providing monochromatic signals of at least two of the elementary colours. In the apparatus illustrated, cameras 4 and 5 produce "red" and "green" signals which are added at 12 and subtracted at 14 from the signal from camera 1 to obtain a "blue" signal. Amplifiers 8 and 9 and filter 13 may have a bandwidth equal to one-fifth of the bandwidth of the whole system. As an alternative, the "blue" signal may be provided by a third camera. Where the "blue" signal is obtained by signal subtraction, as in Fig. 1, it is essential that the total areas, respectively occupied by the three elementary colour in filter 2, are equal.
Patent GB-450676-A (GB)
Title: Improvements in and relating to aeroplanes
IPC: B64C3/00
Filed: 1934-11-22
Abstract: 450,676. Aeroplanes. IRVING, H. B., National Physical Laboratory, Teddington, Middlesex. Nov. 22, 1934, No. 33632. [Class 4] A biplane comprises upper and lower wings of substantially the same span and so arranged that the gap decreases to a relatively small value from the plane of symmetry toward the wing tips and that the trailing edge of the upper wing at its tip, viewed in plan, is located adjacent to the leading edge of the lower wing. Figs. 1 and 2 show an upper wing 1 with a straight leading edge and forwardly swept trailing edges 3 and a lower wing 5 of constant chord with forwardly swept leading and trailing edges, the planes being staggered so that the trailing edges of the upper wing at the tips are located slightly in advance of the leading edges of the lower wing. The two halves of the lower wing are given a positive dihedral and the upper wing may have a negative dihedral or a positive dihedral angle less than that of the lower wing. The lower wing may be tapered and may alternatively be formed with a sweep back or be without sweep in either direction. Ailerons 8 are fitted to the lower wing. According to the Provisional Specification the invention may be applied to multiplanes and the tips of the upper wing may be hinged about a transverse axis, a shield being optionally associated with the hinged part.
Patent GB-943513-A (GB)
Title: Method and apparatus for extruding plastic or metal netting and products of the method
IPC: B29C48/05
Filed: 1961-09-20
Abstract: 943,513. Extruding. G. S. NALLE. Sept. 20, 1961 [Sept. 26, 1960], No. 33701/61. Heading B3P. [Also in Divisions B5 and D1] In the production of plastic or metal netting, plastic material or metal is extruded simultaneously through a series of stationary extrusion openings 29 and a series of oscillating nozzles 20, the oscillations being controlled such that the discharge end 27 of each nozzle 20 registers with one or other of the openings 29 at each end of each swing of the nozzles 20. A chamber 17 in a heated die head 15 (Figs. 1, 8) is fed with pressurized plastic material or metal and communicates via passages 28 with the openings 29 and via passages 18 in pins 19 with the nozzles 20 screwed therein. The pins 19 are rotatably mounted in bores 21 in the die head 15 and carry levers 23 pivotally connected at their upper ends to a rod 35 supported in bearings 36, 37 and reciprocated by known means, e.g. crank and disc, thereby to rock the nozzles 20. In operation, continuous strands are extruded which are welded together without crossing when the nozzle openings 27 and the stationary openings 29 are in register, thereby to form a flat netting. Additional, intermediate, stationary openings 43 (Fig. 3, not shown) may be included. The chamber 17 may include a dividing wall 41 to facilitate the extrusion of different plastics or metals from the openings 29 and the nozzles 20. Alternatively, Fig. 9, the walls of the die head 46 may form a regular polygon; stationary openings 45 and nozzles 47 oscillated on pins 48 co-operating to form a tubular netting. Specification 931,461 is referred to.
Patent GB-819949-A (GB)
Title: Registration apparatus for stencil decorating machines
IPC: B41F15/30
Filed: 1957-10-29
Abstract: 819,949. Stencilling-apparatus. SOLAR ENGINEERING & EQUIPMENT CO. Oct. 29, 1957 [April 18, 1957], No. 33704/57. Class 100(2) A stencil decorating machine comprises a screen movable across a cylindrical article to be decorated, said article having an index device on its bottom, a chuck to receive the bottom of the article and normally free to rotate, a clutch to selectively connect drive means to the chuck to rotate the article, and a registration finger within and rotatable with respect to the chuck and operatively connected to the screen, so that on rotation of the chuck by the drive means the registration finger intercepts the index device to fix the position of the article with respect to the screen. Continued rotation of the chuck causes the clutch to slip, until it is disengaged, whereafter printing takes place with the article rotated by the finger. A cable 20 fixed to opposite ends of the screen is tightly wound round a drum 13 (of the same circumference as a bottle 16 to be stencilled) secured to a registration shaft 21 formed with a flange 45 having a diametrical groove 46. A keeper 49 is arranged to slide adjustably in the groove 46 and is formed with a square channel accommodating a registration finger 55 pivoted to the keeper by a pin 56 and having a projection 57 to engage a notch 58 in or a lug on the bottom of the bottle. The finger is retractably urged into notch- or lug-engaging position by a spring 48. The driving part of a clutch 14 comprises sprocket teeth driven by a chain from a drive shaft and formed on a sleeve 64 secured by set screws 66 to a sleeve 65 formed with a flange 67 to which is riveted a ring 68 of clutch material. The driven part of the clutch comprises a slide 71 having two pins 81 which slidably engage in bores 82 in a split clamp 83 fixed to a chuck shaft 24 formed with a flange 41 and rotatable independently of the registration shaft 21. The flange 41 is secured by screws 43 to the flange 42 of a clutch 17 holding the bottom of the bottle 16. A cam synchronized with the operation of the machine actuates a pivoted yoke having arms 78 which engage pins 77 threaded into a clamp ring mounted on the outer race of a ball bearing 72 in a deep circumferential groove of the clutch ring 71. In operation, the cam engages the clutch long enough to rotate the bottle through four hundred degrees, until the notch or lug thereon is engaged by the registration finger, the clutch then slipping. The clutch is thereafter disengaged, and on movement of the screen the finger drives the bottle through the notch or lug, the clutch shaft rotating freely. Specification 777,193 is referred to.
Patent GB-1312813-A (GB)
Title: Gauges
IPC: B21B38/10
Filed: 1970-07-10
Abstract: 1312813 Gauging bores C KAIFESH 10 July 1970 [31 July 1969] 33713/70 Heading G1M A gauge 11 for gauging the diameter of a groove 19 and the concentricity of groove surface 21 and pipe bore 15 comprises a movable gauging finger 41 mounted on shaft 35 by bearing 53 and operating a gauge 71, a second fixed gauging finger 39 whose position along shafts 35 and 37 is adjustable, and at least one member movable into contact with bore 15 when finger 41 engages the groove. In Figs. 1 and 2a, a squaring surface 135 Fig. 2 (not shown), which is adjustably mounted on shafts 35 and 37, carries a pair of eccentrically mounted pins 157 and 159 in two series of holes. The pins 157, 159 are first rotated by levers 161, 163 so as to be out of contact with the bore as in Fig. 1 and the groove diameter gauged using fingers 39 and 41. To measure the concentricity, the pins 157, 159 are turned until they abut bore 15 and push pipe 13 downwardly so that finger 39 is spaced from the groove surface 21 as shown in Fig. 2a. Upon rotation of the pipe relative to the gauge, gauge 71 then indicates the concentricity. Finger 41 operates gauge 71 via member 51 which is guided at its end remote from finger 41 by having that end bifrucated and engaging roller bearings 61 mounted on shaft 69 Fig. 3 (not shown). The shaft 69 has an eccentric portion 71 which engages the bearings so that rotation of shaft 69 allows the finger 41 to be adjusted laterally to occupy the same plane as finger 39. A plunger 83 allows the finger 41 to be depressed for entrance into the pipe. In the modification shown in Figs.7 and 9, the groove surface 21b is gauged by fingers 39b and 41b. To gauge the concentricity of surface 21b and pipe bore surface 191, a member 195 is moved from the position shown in Fig. 7 into abutment with the surface 193 Fig. 8 (not shown) thus separating fixed finger 39b from the surface 21b, and the pipe is rotated relative to the gauge.
Patent GB-155246-A (GB)
Title: Method of treating ores and the like
IPC: C22B3/44
Filed: 1920-11-30
Abstract: The soft iron ores of the north of Cuba and similar ores containing oxides or oxides and silicates of iron and aluminium and small quantities of nickel, manganese, and chromium, are dried and preheated and then roasted in contact with sulphur dioxide under sulphatizing conditions and then leached with water to obtain a solution of the sulphates of the aluminium and other metals, leaving a residue consisting of a purified iron ore.  The sulphate solution is preferably reduced, for instance by iron or sulphur dioxide, to minimize the quantity of iron that will accompany the aluminium in the subsequent precipitation, and is treated with calcium chloride to convert the sulphates into chlorides, and the precipitated calcium sulphate is separated. The chloride solution is treated with the requisite quantity of calcium carbonate or the like to precipitate as hydrates the aluminium, ferric iron, and chromium.  The precipitate is separated and treated for the recovery of alumina by Bayer's process, the residue being treated for the recovery of the chromium or it may be "sintered with the ore."  The solution is then treated with air and calcium carbonate to oxidize the remaining iron and precipitate it as ferric hydrate, only the necessary quantity of calcium carbonate being employed.  The filtrate is treated with lime to precipitate nickel and manganese hydrates.  The precipitate is washed and dissolved in sulphuric acid, the solution being then electrolyzed with an insoluble anode and a nickel cathode so as to obtain metallic nickel and manganese dioxide.  Each electrode may be enclosed in a diaphragm, for instance a canvas bag, the mixed hydrates being introduced into the bath outside the diaphragms, or into a separate vessel between which and the electrolytic cell the solution circulates.  The Specification as open to inspection under Sect. 91 (3) (a) states that a solution containing iron and nickel, with or without other metals, may be treated with lime or other reagent to precipitate all the metals as hydrates, the precipitate being smelted to obtain an iron-nickel alloy, any manganese present being slagged off if desired.  Any desired proportion of the iron could be precipitated as above described, and removed before the precipitation of the mixed hydrates.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1333856-A (GB)
Title: Count display apparatus
IPC: H03K21/02
Filed: 1971-07-20
Abstract: 1333856 Display systems IWATSU ELECTRIC CO Ltd 19 April 1971 [24 Feb 1970] 33903/72 Divided out of 1333855 Heading G4H In a display system in which the count in decimal counter stage DC1, DC2 (Fig. 1) is displayed in complementary form, counter stages DC2 . . . are incremented at a count of "1" in the immediately preceding counter stage. As described the binary coded decimal counts are decoded in decoders DEC1, DEC2, to pure decimal form and fed to the tens complement input of an associated display D1, D2. The input to the second counter DC2 is taken from a bistable FF1 set by a count of 1 in the first counter and reset by the overflow pulse from that counter. The arrangement ensures that although the complement of the number of input pulses is displayed a count of zero is displayed after a reset signal at input RE. The apparatus may be extended to any number of counting decades.