baber/WOPTO huggingface dataset:
Patent GB-1123810-A (GB)
Title: Improvements in a wire drawing apparatus
IPC: B21C1/14
Filed: 1966-08-22
Abstract: 1,123,810. Drawing. FASTENER ENGS. Inc. 22 Aug., 1966 [17 Jan., 1966], No. 37552/66. Heading B3P. A wire drawing machine comprises a die 13 and a drawing drum 11 to pull the wire through the die 35, the drum comprising a wire engaging surface 41 with a flange 42 at the inlet end to engage the wire as it is wound on to the drum and force the coils on the drum axially therealong to the outlet end where the wire is wound off the drum, the total number of turns on the drum remaining constant, and at least two clamps 14 mounted on the drum, to clamp the wire to the drum and operating mechanism to open the clamps as the drum rotates, the operating mechanism being so arranged that at least one clamp clamps the wire to the drum at all times. A lubricating box 37 is provided before the die 35. The wire engaging surface 41 of the drum is formed in two sections so that the axial length of the drum can be changed to accommodate different sizes of wire. As the wire unwinds from the drum to a further machine it passes over an idler roller 47 urged to take up the slack in the wire by a pneumatic cylinder 52. To prevent slipping of the coil on the drum 11, four clamps 14 are mounted on the drum around the periphery of the driving surface. The clamps each comprise a clamping member 61 mounted to swing between a clamping position (top of Fig. 3) and a release position (bottom of Fig. 3). Each clamp has a preferably fluid-operated actuator 15. Each clamp preferably only clamps the last turn of the coil. The wire engaging face member (84), Fig. 4 (not shown), of each clamp is adjustable relative to the clamp member 61 to vary the spacing between the member (84) and the surface 41 of the drum to accommodate various sizes of wire. The actuators 15 are the double-acting type and the pneumatic circuitry is shown diagrammatically in Fig. 6. A valve (91) is provided for each actuator 15, the valves being mounted on the drum for rotation therewith. Each valve is operated by means of a cam follower 114 which engages a fixed cam 111 so that as the drum rotates the valves (91) are operated to open and close the clamps. The angular travel of each clamp in its open position is determined by the cam surface (111b), Fig. 6 (not shown), which is preferably less than 90 degrees. A clamp 171 is provided for clamping the wire when the drum is stopped and is operated either manually or automatically by pneumatic means. The idler roll 47 has a switch (161), Fig. 6 (not shown), which is operated by the roll control arm 48 to stop the drive to the drum when the stack W-4 becomes excessive.
Patent GB-344514-A (GB)
Title: Improvements in or relating to cinematograph cameras and projectors
IPC: G03B21/44
Filed: 1929-12-07
Abstract: 344,514. Kinematograph apparatus. KINGSTON, A. W., 9, Newman Street, Oxford Street, and SPICERS, Ltd., 19, New Bridge Street, both in London. Dec. 7, 1929, No. 37614. [Class 97 (i).] The take-up sprocket and the take-up spool are driven from the spindle of the feed spool by means of a plate 91 receiving crank pins 69, 92, 93, carried by a pinion 68 and by discs 94, 95 on the spindles. The plate 91 may be triangular, and its middle part may be cut away. A main shaft 62 of the mechanism may be driven by a clockwork motor or by hand, and may drive the pinion 68 by means of pinions 65, 66, 67. Alternatively, an electric motor may drive a shaft 63 geared to the shaft 62. The apparatus may be provided with two lenses &c., as described in Specification 344,511, so that it may be used as a camera or as a projector.
Patent GB-1061788-A (GB)
Title: Improvements in and relating to the production of vinyl esters
Inventor: CLARK Duncan
IPC: C07C69/01
Filed: 1962-10-04
Abstract: Vinyl esters of aromatic or saturated aliphatic mono- or di-carboxylic acids are obtained by bringing a gas mixture containing 3 to 10% by volume oxygen and at least twice as much ethylene into contact with a reaction mixture containing a carboxylic acid which is liquid under the reaction conditions, palladous chloride in a molar concentration of 0.005 to 0.5, a redox system, lithium chloride in a molar concentration of 0.1 to 1.0 and at least one carboxylate which is ionized under the reaction conditions, the partial pressure of the ethylene being at least atmospheric, the water content of the liquid being at most 20% by weight and the reaction being carried out a temperature of 100 DEG  to 140 DEG  C.  The preferred product is vinyl acetate obtained by carrying out the reaction using acetic acid as the carboxylic acid and lithium acetate as the ionized carboxylate.  The redox system is preferably a cupric salt and the ethylene/oxygen-containing gas mixture may be diluted with nitrogen and/or another inert gas. It is preferred to operate the process in such a manner that an amount of acetaldehyde is formed which may be oxidized in situ or in a separate vessel to an amount of acetic acid which makes up for the quantity of acid reacted or lost.
Patent GB-1175028-A (GB)
Title: Process for the Removal of Asphaltenes and Resins from Residual Petroleum Fractions
Inventor: CAMPAGNE NICHOLAAS VAN LOOKERE
IPC: C10G21/00
Filed: 1968-08-07
Abstract: 1,175,028. Refining hydrocarbon oils. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 7 Aug., 1968 [9 Aug., 1967], No. 37712/68. Heading C5E. A process for the removal of asphaltenes and resins from a residual petroleum fraction comprises treating the fraction with a precipitating agent for asphaltenes, the precipitating agent being at least one aliphatic hydrocarbon having 5 to 10 carbon atoms per molecule, separating the precipitated asphaltenes, heating the resulting substantially asphaltene-free mixture of oil and precipitating agent until a precipitate is formed and separating off this second precipitate. The precipitating agent may be pentane, a pentane-containing mixture or a light naphtha fraction boiling between 10‹ and 150‹ C. The temperature to which the mixture of oil and precipitating agent is heated may be from 10‹ to 50‹ C. below the temperature at which the mixture passes into the critical state; in examples, temperatures of from 150‹ to 185‹ C. are used.
Patent GB-848999-A (GB)
Title: Improvements in or relating to a strain insulator
Inventor: SCOTT ARTHUR LESLIE
IPC: H01B17/12
Filed: 1957-12-04
Abstract: 848,999. Insulators. COLUMBIA PRODUCTS CO. Dec. 4, 1957, No. 37790/57. Class 36 An insulator consists of two channeled thimbles 1 around which a sliver of fibreglass is wound a number of times to form a loop 2. The sliver comprises a number of untwisted glass fibres and is impregnated with a resin or plastic which is set by heat, with or without pressure, after the loop has been wound. Tension is applied to the loop during the setting process. The loop may be left open (Fig. 2, not shown) or consolidated into a single bundle of parallel strands e.g. by a whipping 4 between the thimbles. The whipping may be of resin impregnated fibreglass or a temporary one of cellophane tape may be used. As shown in Fig. 5 a shield 6 of moulded fibreglass may be added.
Patent GB-326843-A (GB)
Title: Improvements in machines for making fillers for egg and other gases
IPC: B31B11/00
Filed: 1928-12-21
Abstract: 326,843. Kanabay, E. J. Dec. 21, 1928. Feeding webs.-Fillers for egg boxes are made from two webs of cardboard, the one web A, Fig. 2, being punched with slots s of D-form, slit vertically to form strips A<1> which are fed through guides 85 and turned at right angles to their original position to enter guideways 98, Fig. 3, in a pair of relatively movable assembling frames 97 where strips B', slit horizontally from the other notched and slotted web B and bent into D-form by rollers 120, 121, are fed through channels transverse to the guideways and through the slots s of the strips A<1>. The web A is fed by rollers 52. 53 operated from the shaft 25 through links 55, 56, 58 and a rack gearing with a pinion connected by a one-way clutch with a shaft 61, geared to the shaft of the roller 52. The punched web A is fed by the rollers 52, 53 against a plate 70 where cutting-discs 69, carried by a frame 66 reciprocated A<1>, which are then moved by springs by a cam 76, slit the web into strips fingers 71 on the frame down into the inclined guides 85 where they are turned at right angles to their original position and moved into the guideways 98 by an oscillatory bar 86 actuated through rack and pinion mechanism; the cams 76, 94 are actuated from the shaft 25 and the web is slit and fed into the guideways 98 while the feed rollers 52, 53 are at rest. The web B is fed into the D-shaped channels in the assembling frames by a series of rollers 120, 121, the shafts of the rollers 121 carrying pinions actuated by a rack 126 through one-way clutches, the rack being connected to the link 58 of the mechanism driving the rollers 52, 53.
Patent GB-1366644-A (GB)
Title: Sulphonyl benzimidazoles
IPC: C07D235/06
Filed: 1971-08-11
Abstract: 1366644 Benzimidazole containing sulphones E R SQUIBB & SONS Inc 11 Aug 1971 [12 Aug 1970] 37805/71 Heading C2C Novel compounds I (including salts thereof) where R is hydroxy, alkoxy, alkylenedioxy, optionally substituted amino, aminoalkyl, NHCO 2 R<SP>5</SP> (R<SP>5</SP> is alkyl, aryl, arylalkyl or cycloalkyl), alkyl, NO 2 , SCN, halogen, aralkyl, mercapto, aryl or alkylaryl, R<SP>1</SP> to R<SP>4</SP> are H, alkyl, arylalkyl or optionally substituted aryl, m is 0, 1 or 2, n is 0 or 1 and n + n is 1 to 4 are made by oxidizing the corresponding sulphides (obtained by standard methods). Pharmaceutical preparations showing anthelmintic activity contain I as active ingredient; administration may be orally.
Patent GB-1009754-A (GB)
Title: Improvements in or relating to two-state circuit arrangements
IPC: H03K3/45
Filed: 1962-10-08
Abstract: 1,009,754. Circuits employing magnetic storage cores. SIEMENS & HALSKE A.G. Oct. 8, 1962 [Oct. 12, 1961], No. 37951/62. Heading H3B. A magnetic core K having a rectangular hysteresis loop is periodically driven beyond saturation by timing pulses T in a winding W1, and is magnetized in the opposite sense by a fluctuating input signal E in winding W2, substantial alterations of the core flux being obtained when the input signal exceeds a predetermined value, so that an effective output is induced in a winding W3 which causes a transistor Ts to supply constant-amplitude output pulses. These pulses pass to an output terminal AS and parallel condenser C through a feedback winding W4 and a rectifier D, the feedback flux acting in the same sense on the core flux as the input signal. A further feed-back path comprises a resistor R1 which connects the output terminal to the feed-back winding, this path enabling condenser discharge current to maintain production of an output pulse when the input signal falls by a limited degree below the predetermined value.
Patent GB-1083996-A (GB)
Title: Improvements in or relating to looms
IPC: D03D45/20
Filed: 1964-09-17
Abstract: A method of changing the bobbins in a loom having multiple boxes at both sides of the loom, e.g. 1,043,357, which takes place over two loom cycles with only one cycle being non-operative comprises, after a shuttle has been felt on one side of the loom and destined for the upper change box on the other side of the loom, the steps of, in the first cycle; releasing a full bobbin from the magazine, stopping the dobby, stopping the fabric take-up, actuating the change box, stopping other loom mechanisms and in the second cycle; stopping the picking, changing the bobbin, restarting the dobby, restarting the take-up, restarting the change boxes to pattern and restarting the previously stopped other loom mechanisms.
Patent GB-1441502-A (GB)
Title: Low speed mechanical aerator impeller
IPC: B01F3/04
Filed: 1974-08-30
Abstract: 1441502 Aerating liquids ENVIREX INC 30 Aug 1974 [26 Sept 1973] 38028/74 Heading B1C A rotatable surface aerator has an inverted conical or frusto-conical body 22 having a radius and depth to apex of R with three, four or five blades 23. Each blade lies in a plane inclined at 30 to the impeller axis at the upper end of the impeller, and has a leading edge 25, and inlet edge 26a, b, and an outlet edge 27; the outlet edge extends from the upper outer edge of the body member and has a length of between R and 1.5R and the inner portion 26a of the inlet edge is 0.3R below the lower end of the body member. The blades may have inner and outer extensions (31, 32 Fig. 6, not shown). In operation the aerator is disposed at a fixed level in a tank having an outlet weir of such a length that at predetermined maximum and minimum flow rates it maintains the liquid level between the top of the aerator and 0.5R below, and at normal flow rates 0.25-0.2R below the top.
Patent GB-1185360-A (GB)
Title: Plasma-Jet Engine.
Inventor: MASON MICHAEL DAVID LAWRENCE
IPC: F03H1/00
Filed: 1967-08-18
Abstract: 1,185,360. Nuclear power plant. M. D. L. MASON. 13 Aug., 1968 [18 Aug., 1967], No. 38281/67. Heading G6C. [Also in Division F1] Energy is imparted to the air stream of an air breathing jet-propulsion engine by passing the air stream through a grille of parallel plates of alternate electrical polarity. The air is thus heated and is expanded through a propulsion nozzle. The source of electrical energy is a fast-breeder nuclear reactor associated with a turbo-alternator.
Patent GB-303126-A (GB)
IPC: F16B19/10
Filed: 1928-12-28
Abstract: 303,126. Vereinigte Aluminium- Werke Akt.-Ges., (Assignees of Muller, R.). Dec. 28, 1927, [Convention date]. Rivets.-A light metal rivet in which the resistance to shearing forces is increased by placing on the rivet shank a sleeve of a metal such as steel which has a great shearing strength. This sleeve may be continuous or split. The sleeve a is first slipped on, the whole is placed in the work, and the rivet point then formed in the ordinary way. Light-metal rivets can be worked hot in this way by using sleeves of a material of low heat conductivity.
Patent GB-340122-A (GB)
Title: Improvements in wringing machines
IPC: D06F45/00
Filed: 1929-12-14
Abstract: 340,122. Wringers. CHERRY TREE MACHINE CO., Ltd. and MERCER, T. T., Cherry Tree, Blackburn. Dec. 14, 1929, No. 38318. [Class 138 (ii).] The table top a of a folding wringer is arranged to be secured to the side members of the stationary frame of the machine at one of two pointsInear the rear edges of the frames, one wherein it serves as the table proper, and another in which it serves as a board for receiving the work from the wringer. A third point of attachment near the front of the side frames may also be provided so that the table may serve as a work feeding board. At each rear corner the table top is provided with a depending bracket b having a recess b2 and a projection b<3>. Each side member of the stationary frame is provided with four pins c<1> .. C<SP>4> arranged as shown. When the recesses b2 fit over the pins c<1> the member a serves as the table proper and may be swung from a horizontal operative position, in which the projections b<3> abut against shoulders a<1> formed on the side frames, to a vertical inoperative position in which the brackets bear against abutments d on the side frames. When the table top is turned around and the recesses engaged over the pins C2 the table is positioned behind the rollers, and receives the work coming therefrom, the brackets resting upon the pins c<1>. When the recesses b<2> engage over the pins C3 and the brackets rest upon the pins c<4>, the table top is positioned in front of the rollers and serves as a work feeding board. The side frames may be constructed as described in Specification 330,070, [Class 138 (ii), Washing, mangling, &c.].
Patent GB-1436720-A (GB)
Title: Slide type valve
IPC: F16K3/02
Filed: 1973-08-13
Abstract: 1436720 Valves SCITECH CORP 13 Aug 1973 38328/73 Heading F2V In a valve having a valve member 3, Figs. 1 and 4, provided with passages 15, 16 and slidably adjustable in a body 1 to communicate inlet 11 with outlet 12, and having tubular sealing members 20 circumscribing the flow ports in, and applying sealing forces to, the slide or body, the slide is guided by rolling bearings 30 arranged at its ends and on opposite sides of the flow ports. Thus tilting of the slide due to the applied sealing forces and consequent binding engagement with the body is prevented. The bearings may be of the roller or ball type. The outer races of the two upper bearings rest on shoulders 6b to suspend the slide above bottom wall 5. The slide is adjusted by a lever 4 pivoted at 38. There may be a pair of upper bearings and a pair of lower bearings at each end of the slide, Fig. 5 (not shown). The bearings may be located between the opposing vertical side walls of the slide and body, Fig. 6 (not shown), and each comprise a cage (3011) universally mounted by ball (30a) to the slide and carrying bearing balls which directly engage the body, the slide being supported by the bottom wall (5) via a bearing pad (30c). Reference has been directed by the Comptroller to Specification 1,324,098.
Patent GB-1115774-A (GB)
Title: Self-lubricating urethane-urea copolymer bearing compositions and bearings therefrom
IPC: F16C33/20
Filed: 1965-09-08
Abstract: Urethane-urea copolymers are prepared by reacting at 90 DEG  to 130 DEG  C. (a) a polyurethane prepolymer having a M.W. of 1000-5000, containing 2 to 10% by weight of free isocyanate groups and being the reaction product of an excess of an aromatic diisocyanate and a dihydric compound, (b) an amine containing at least two primary amine groups, the amine being present in an amount of 30% less than 20% in excess of the amount stoichiometrically required to react with the free isocyanate radicals in (a), and (c) 2 to 5% by weight based on the prepolymer of a fatty acid having 12 to 26 carbon atoms and containing not more than one unsaturated carton-to-carbon bond therein; and continuing the reaction until a copolymer is obtained having a Shore A hardness of at least 50 measured at 100 DEG  C. Preferred dihydric compounds used to form the prepolymer are polyethers and polyesters whilst the preferred diisocyanates are the toluylene diisocyanates.  Suitable amines are phenylene diamines 4,41-diaminodiphenyl, 4,41-diaminodiphenylmethane and especially 4,41-methylene-bis-(2-chloroaniline) The fatty acid may be stearic acid, palmitic acid, oleic acid, lauric acid and erucic acid. Microfine graphite and silicone oils may be added to the copolymer forming reaction mixture.  The copolymers are especially suitable in the production of selflubricating bearings (see Division F2).
Patent GB-1395071-A (GB)
Title: Process for the preparation of urea
IPC: C07C239/00
Filed: 1972-08-17
Abstract: 1395071 Urea production STAMICARBON NV 17 Aug 1972 [2 Sept 1971] 38445/72 Heading C2C Urea is produced by forming ammonium carbamate from NH 3  and CO 2  in a reaction zone at a pressure of 90 to 140 ats. gauge, passing the resulting product to a first urea-forming zone at substantially the same pressure until at least 40% (e.g. 70-95%), by weight of the equilibrium amount of urea that can be attained in the zone has formed, passing the solution so obtained to a second urea-forming zone wherein the formation of urea is continued at a pressure of at least 160 ats. gauge, until at least 85% by weight of the equilibrium amount of urea that can be attained in the second zone has formed, separating gases from the urea-synthesis solution so produced (e.g. NH 3  and CO 2  stripped therefrom after partial expansion), and recycling said gases to the carbamate-forming zone. The heat required for the formation of urea in the first (a) and second (b) urea-forming zones may be obtained (a) from the heat released in the condensation of gas removed in a stripping zone in the first urea-forming zone and (b) directly from the formation of additional ammonium carbamate from NH 3  and CO 2  in the second urea-forming zone.
Patent GB-1472046-A (GB)
Title: Fungicidal andfungistatic compositions
IPC: A61K35/74
Filed: 1975-09-19
Abstract: 1472046 Fungicidal compositions F HOFFMANN-LA ROCHE & CO AG 19 Sept 1975 [20 Sept 1974] 38528/75 Heading A5B Fungicidal and fungistatic compositions comprise a) 5-fluoro-cytosine and b) nystatin, candicidin or trichomycin in a free, esterified or N-glycosylated form or a water-soluble, physiologically tolerable salt thereof. The compositions are suitable for combating infections by fungi and yeasts of the skin, muccous membranes and gastrointestinal and genital tracts, e.g. vaginitis.
Patent GB-878923-A (GB)
Title: Means for maintaining a substantially constant relationship between the peripheral speeds of a pair of driven rolls
Inventor: SKINNER ROBERT THOMAS JOHN
IPC: C03B13/16
Filed: 1958-12-01
Abstract: 878,923. Variable-speed gear. LUCAS (INDUSTRIES) Ltd., JOSEPH. Dec. 1, 1959 [Dec. 1, 1958], No. 38615/58. Class 80 (2). [Also in Group XXIII] To maintain a substantially constant relationship between the peripheral speeds of a pair of driver rolls for a glass rolling mill, there is provided an epicyclic mechanism including a pair of rollers 15, 16 in driving engagement with the driver rolls 1, 2 and a planetary pinion carrier 21 angularly movable in response to any deviation from the required relationship between the peripheral speeds of the rolls 1, 2 in combination with a variable output pump 13 driven at a substantially constant speed from an electric motor 14, means such as a servo mechanism 25 for varying the output of the pump in response to angular movements of the pinion carrier 21, and an hydraulic motor 12 driven by motive fluid delivered from the pump 13 and the speed of which determines the speed of one of the rolls 1 with respect to the other roll 2. The epicyclic mechanism comprises a sun pinion 17 connected to the roller 15, a similar pinion 18 connected to the roller 16, an internally toothed annulus 19 in engagement with the pinion 18 and a planetary pinion 20 on the carrier 21 in mesh with the sun pinion 17 and the annulus 19. A second epicyclic mechanism comprises a sun pinion 11 driven from the motor 12, a planetary pinion carrier 5 connected to the roll 1 and carrying a planetary pinion 10 in mesh with the pinion 11, an internally toothed annulus 7 in mesh with the pinion 10 and driven at a substantially constant speed from an electric motor 9 by a pinion 8 and a pinion 6 driven from the annulus 7 and connected to the other roll 2. The first epicyclic mechanism is so arranged that a small variation in the peripheral speeds of the rolls, e.g. 0.1%, will effect a proportionately greater change in the output of the pump 13, e.g. 10% and the second epicyclic mechanism arranged so that the speed of the hydraulic motor will effect a proportionately smaller change in the peripheral speed of the roll 1.
Patent GB-1042069-A (GB)
Title: Improvements in or relating to amplitude modulators
Inventor: BENNETT ARTHUR JAMES
IPC: H03C7/02
Filed: 1963-10-03
Abstract: 1,042,069. Amplitude modulation. PYE Ltd. Sept. 15, 1964 [Oct. 3, 1963], No. 38908/63. Heading H3R. An amplitude modulator comprises a carrier signal source 1, a wave director 5 connecting the energy from the source via coaxial lines 2 to a terminating device 3 and the reflected energy from the device 3 to a load 4 and modulating means 7 for varying the impedance of the terminating device. The wave director may be a 3 port circulatory isolator and the terminating device may comprise a diode 10, the impedance of which is varied by applying the modulating voltage to its anode, connected to a shortcircuited transmission line 11, 12 which is tuned with the diode capacitance to resonate at the carrier frequency. The diode is biased so that the terminating device presents an impedance equal to the line impedance in the absence of a modulating voltage. Any non-linearity in the reflection coefficient is substantially compensated by the impedance characteristic of the diode.