baber/WOPTO huggingface dataset:
Patent GB-1201939-A (GB)
Title: Magnetic transducer head
Inventor: CAMRAS MARVIN
IPC: G11B5/127
Filed: 1967-10-30
Abstract: 1,201,939. Making transducers. IIT RESEARCH INSTITUTE. 30 Oct., 1967, No. 49229/67. Heading B3A. [Also in Division G5] A magnetic transducer comprises semicircular core parts 17, 18 located in recesses in two mating conductive blocks 35, 36 having cavities defining an annular winding space containing a winding 47 linking the core; the gap 12, block interface, and winding space median plane all being coplanar. As shown, channel-section, semicircular alloy C-cores 17, 18 containing lower coercivity laminations are located in recesses 38, 39 in Cu, Al or Ag blocks 35, 36 integral with, or soldered or welded at 143 to mounting blocks 40, 41 of copper, brass or bronze, the blocks containing machined or pressed annular cavities 45, 46 receiving windings 47, 48. A gap spacer and possibly a copper wedge 32 are positioned at the gap 12 and the core halves clamped together by screws 67 within a magnetic casing 60. Prominent portions of the blocks 35, 36 are removed and the remainder ground to a crowned configuration either flush with, or slightly above, the casing. During recording, the winding 47 may be terminated by a resistor while the bias and a video signal are applied to winding 48, or winding 48 may be short-circuited to obtain a low impedance and high resonant frequency. During playback, the windings 47, 48 are either connected in series-opposition at frequencies below the resonant frequency of winding 47 to give greater signal output between the resonant frequencies of the two windings, or in seriesaiding so as to provide bass-boost below the resonant frequency of winding 47. A multi-channel head (Fig. 4, not shown) consisting of four transducers each comprising two pairs of C-core assemblies (89, 90) located in a common (94) or respective blocks, themselves fixed dovetail-fashion into larger blocks, is constructed as above and mounted for lateral shifting to handle eight-track lubricated tapes.
Patent GB-1269684-A (GB)
Title: Stocking and nesting containers
IPC: B65D57/00
Filed: 1969-10-07
Abstract: 1,269,684. Nested containers. LILY CUPS OVERSEAS Ltd. 7 Oct., 1969 [9 Oct., 1968], No. 49265/69. Heading B8C. A plurality of containers 20 are positively held in openings 33 formed in superimposed trays 32, the containers carried by one tray nesting on those carried by the tray below. The sidewalls 23 of each container 20 are outwardly flared at 24 to seat on the top of the container below, and have a top flange 26 between which and protrusions 29 the tray 32 is clamped. The. nested containers may be enclosed in a carton. In various modifications (Figs. 5-16), the protrusions (129) are adjacent the flared portions 24 and seat on the underlying container; the protrusions 29 are replaced by a ridge (229); projections (334), formed on the periphery of the openings (333), engage in recesses (329) in the side walls of the containers; wedge-shaped protrusions (429) on the container engage in notches (434) formed on the periphery of each opening (433); the containers (520) are secured to the trays by adhesive; or the containers (620) are moulded integral with the trays (632) and are connected thereto by frangible tongues (634).
Patent GB-1194080-A (GB)
Title: Combination Friction Clutch and Fluid Coupling
IPC: F16D13/72
Filed: 1968-10-17
Abstract: 1,194,080. Friction clutches; fluid couplings. TWIN DISC Inc. 17 Oct., 1968 [24 Oct., 1967], No. 49304/68. Heading F2C. In a friction clutch the interengaging surfaces 30, 32 and 31, 33, Fig. 1, have recesses which hold fluid and provide a fluid coupling action as the clutch engages until the frictional engagement takes over. As shown in Fig. 1 the fluid is fed to the friction surfaces by centrifugal action through a conduit 36, 37 and is bled from the male member through small passages. In Fig. 2 the fluid is forced under pressure through conduits 36, 37a. Fig. 12 shows an embodiment in which the recesses are provided in friction plates 113, 114 and fluid is supplied through passages 122-124. In all the embodiments the clutches are hydraulically engaged and disengaged.
Patent GB-1446240-A (GB)
Title: Photographic camera
IPC: G03C3/00
Filed: 1973-10-24
Abstract: 1446240 Camera mechanisms FUJI PHOTO FILM CO Ltd 24 Oct 1973 [25 Oct 1972]  49634/73 Heading G2A In a camera in which the film is advanced by a claw engaging in a film perforation, the claw is provided on an advancing member which, after completion of the advancing movement, is retained in that position until it is released by the shutter release, and during its return movement actuates the shutter. As shown, the film advancing member is a lever 7 which is slidably mounted on a rail 6, and urged to the left by a spring 8. One arm of lever 7 has a leaf-spring 10 which rides on edge 18 of the camera body, so that the lever is urged anticlockwise. This brings the claw 9 which is part of the lever into engagement with the film, so entering a perforation when in alignment therewith. Lever 7 also carries a spring projection 11 which can engage with the teeth of a counter wheel 12. From the position of Fig. 1, when claw 9 is engaged in a film perforation at the beginning of the film advance, lever 7 is pushed to the right by a slider 1. During this movement the leaf-spring 10 passes over a ramp portion 16 at the top end of a shutter blade 14. At the end of the movement, the end of lever 7 lies underneath a shutter button 3. The shutter 14 is biased into the rest position shown by a spring 15. When slider 1 is released, it is drawn back to its original position by a spring 2. Lever 7, however, remains at the right hand end of its traverse, being retained there by general friction, or by positive engagement of claw 9 in a recess (27a), Fig. 5 (not shown). When shutter button 3 is pressed, the end of lever 7 is pushed downwards against the action of spring 10, and hence the whole of lever 7 is pivoted clockwise. This causes claw 9 to retract out of engagement with the film perforation, so that lever 7 is now free to be impelled to the left by spring 8. During this movement the spring 10 strikes the ramp 16 and so pivots the shutter blade anti-clock wise to effect an exposure. An arrangement may be provided Fig. 8 (not shown) for holding the claw out of engagement with the film during its return movement, to prevent the film from being scratched.
Patent GB-988934-A (GB)
Title: ª‡,ª‡-disubstituted propionic acids and their derivatives
Inventor: TESTA EMILIO
IPC: C07C51/09
Filed: 1961-04-14
Abstract: The invention comprises an a ,a -disubstituted propionic acid of formula <FORM:0988934/C2/1> wherein R and R1 are the same or different alkyl (3-8C), aryl or aralkyl radicals, and X is a halogen or acyloxy radical, and acid halides thereof, specifically a -phenyl-a -benzyl-b -acetoxy propionyl chloride, a -phenyl-a -isopropyl b  - bromopropionic acid and chloride, a -phenyl - a  - n - butyl - b  - bromopropionyl acid and chloride. The compounds are prepared subjecting a b -hydroxy acid lactone to ring cleavage in alkaline medium such as an aqueous alkali metal hydroxide and acylating, or by heating with hydrohalogenic acid.  Specifications 635,347, 653,348, 654,242 and 674,436 also are referred to.
Patent GB-1184991-A (GB)
Title: A System for Purifying Exhaust Gases of Internal Combustion Engines
Inventor: ROHAC IVAN
IPC: F01N3/34
Filed: 1967-11-03
Abstract: 1,184,991. Treating exhaust; ejectors. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL. Nov.3, 1967 [Nov. 5, 1966], No. 50103/67. Headings F1B and F1E. In a system for purifying the exhaust gases of a multi-cylinder, spark-ignition I. C. engine, separate tubes for introducing air project into the individual branches of the exhaust manifold 7 and the end of each tube within the branch is provided with an air distribution head 3 having outlet ports 4. The air distribution head may take different forms, Figs. 2 to 5 (not shown). The flow of exhaust gas past the head 3 causes air to be drawn into the manifold branch and the air may be pressurized by a blower, the engine cooling fan, generator fan or flywheel. A catalytic substance may line the inside walls of the exhaust manifold. Crank-case vapours may be added to the air introduced into the exhaust manifold.
Patent GB-1064259-A (GB)
Title: New derivatives of 2-anilino-nicotinic acid and process for their preparation
Inventor: HOFFMANN CHARLES
IPC: C07D213/80
Filed: 1963-12-19
Abstract: Novel compounds of the Formula I, wherein R represents a hydroxy, alkyl, haloalkyl, alkoxy, carboxy, or carboalkoxy radical or a halogen atom, R1 represents a hydrogen or halogen atom or a hydroxy, alkyl, haloalkyl, alkoxy or carboalkoxy radical and R2 represents a hydrogen atom or acyl group, and the phenyl nucleus may be substituted by one or more additional alkyl radicals, and their water soluble salts, and the compound of the Formula III, its mono-sodium salt, and its di-sodium salt of Formula IV, are prepared by condensing a 2-halo-nicotinic acid with a compound of the Formula II wherein the phenyl nucleus may be substituted by one or more additional alkyl radicals <FORM:1064259/C2/1> <FORM:1064259/C2/2> <FORM:1064259/C2/3> <FORM:1064259/C2/4> and, if desired, acylating compounds wherein R2 represents a hydrogen atom.ALSO:Therapeutic compositions with analgesic and anti-inflammatory properties, which may take the forms of tablets, pills, dragees, capsules, syrups, liquids, ampoules, creams, lotions and suppositories, for oral, parenteral and topical application, comprise compounds of the formula I where R represents a halogen atom or a hydrogen, alkyl, haloalkyl, alkoxy, carboxy or carboalkoxy radical, R1 represents a hydrogen or halogen p  atom or a hydroxy, alkyl, alkoxy, carboxy, haloalkyl or carboalkoxy radical and R2 represents a hydrogen atom or an acyl radical, and the phenyl nucleus may be substituted by one or more additional alkyl radicals, or their water-soluble salts, or the compound of the formula III or its mono- or disodium salts, to gether with a pharmaceutical carrier.  The compositions may also contain, for example, proteolytic enzymes, analgesics, anti-histaminics, anti-biotics and other anti-inflammatories <FORM:1064259/A5-A6/1> <FORM:1064259/A5-A6/2>
Patent GB-1135044-A (GB)
Title: Apparatus for the manufacture of tape material
IPC: E06B9/382
Filed: 1965-11-30
Abstract: 1,135,044. Laminating apparatus; extrusion/ coating heads. HUNTER DOUGLAS INTERNATIONAL Ltd. 30 Nov., 1965 [2 Dec., 1964], No. 50813/65. Headings B5A and B5N. [Also in Division E1] Apparatus for manufacturing tape, especially the ladder tape for venetian blinds of Specification 1,135,045 comprises an endless conveyer band 24 passing around three guides 26, 28, 30 to form an obtuse angled triangle, a first coating bead 34 for spreading a layer of plastics material on to the band, means 38 downstream for feeding a plurality of bundles of fibres or threads 20 on to the band and a second coating head (also 38) for covering at least these bundles with a layer of plastics. The feeding devices for fibre bundles and second plastics coating may be combined in a single head 38 as shown. The endless band may be of steel or plastics and may have a patterned surface. A pre-heating. oven 32 may be provided and after a coating of, e.g. P.V.C. plastisol has been applied by the first coating head it may be fused by a second oven 36, the fibre bundles and second plastisol layer then being applied and fused by a third oven 40. A heated wheel 30 then melts the plastics to a sticky condition so that a series of plastics strips which have been trimmed to length by cutting device 42 can be fed in and will adhere to the sticky tape. A duplicate of this apparatus is arranged in mirror image relationship to provide two of the reinforced laminated tapes between which the adhered plastics strips extend to form a ladder tape. The coating head 38 (Fig. 5) which lays the thread bundles and covers them in a single operation is in two parts, the upper member 52 having a shallow slot-like orifice 68 and the lower member 50 having a plurality of spaced grooves 72 to accommodate the thread bundles 20. These grooves are of square section but are widened and deepened to form V-notches at the intersection of the end surface 58 and the bottom surface 56. The end wall 70 of the upper member 52 has corresponding notches 76. Typical dimensions are given. In a modification the slot orifice is omitted so that the bundles are extruded with a plastics coating but no interconnecting web. The tendency of the tape to curl at the edges is overcome by making the two superposed plastics layers with different ratios of plasticizer.
Patent GB-1184795-A (GB)
Title: Improvements in or relating to Suction Nozzles for use with Suction Refuse Collecting Vehicles
IPC: E01H1/08
Filed: 1966-11-14
Abstract: 1,184,795. Street cleaning machines. JOHNSTON BROS. (ENG.) Ltd., H. G. SMALLWOOD and P. B. HIRST. 7 Nov., 1967 [14 Nov., 1966], No. 50939/66. Heading E1G. A suction nozzle for use on a street or runway cleaning vehicle has a generally rectangular hood 10 with side walls 12, an open front 18, and a rearwardly mounted hydraulically operated roller brush 15 which is driven by a motor 16 to rotate upwardly at its front edge. The hood has wheels 17, and the nozzle may be mounted on an articulated, bifurcated trailing arm 19 (Fig. 2, not shown) which may carry additional roller brushes 22, 23 which are driven by hydraulic motors to rotate upwardly at their front edges, and are arranged to converge rearwardly towards the hood.
Patent GB-1327114-A (GB)
Title: Heater and heating system
IPC: F28D15/02
Filed: 1970-10-27
Abstract: 1327114 Heat pipes PHILIPS GLOEILAMPENFABRIEKEN NV 27 Oct 1970 [30 Oct 1969] 50962/70 Heading F4U The heater 2 of a hot-gas engine 1 is supplied with thermal energy from a spaced source 8 by means of a heat pipe construction. As described, the heater is mounted within a container 3 communicating with a vessel 5 through a duct 4 which together constitute the heat pipe and which utilize sodium, or other metal, metal alloys or metal salts as the working medium. The heat source 8 may comprise an oil burner, the combustion gases from which are exhausted through a duct 10 after passage through ducts 6 mounted in a vessel 5. Capillary layers 11 are mounted about the ducts 6. In a modification, the ducts 6 are replaced by containers filled with lithium fluoride, aluminium oxide or other heat accumulating material and the burner 8 is replaced by electrical heating means. In a further form, the ducts 6 are replaced by containers filled with a metal, e.g. lithium which after heating by the sodium in the heat pipe has an oxidant supplied thereto to react therewith to generate heat and evaporate the sodium which flows as vapour to the container 3 for condensation.
Patent GB-1060730-A (GB)
Title: Vacuum forming method and apparatus
IPC: B29C69/00
Filed: 1963-12-24
Abstract: 1,060,730. Sheet forming. FORMEX MANUFACTURING Inc. Dec. 24, 1963 [Dec. 31, 1962], No. 51002/63. Heading B5A. Hollow articles, e.g. mannequin trunks, are vacuum moulded from two sheets of thermoplastic material the upper sheet being clamped between pivoted upper frames 71, 63, resiliently depending from a wheeled carriage 49 and the lower sheet being clamped between lower frames 73, 78 carried by a second carriage 45. The carriages carrying the thus clamped sheets are moved along tracks (36), (37) and (47), (48) from their original position, between upper and lower piston-operated vacuum moulds valves 23, 32, to a position between upper intermediate and lower heating elements 42, 41, 40, and are returned thereto after sufficient heating. The mould halves are then forwarded to the position shown in the Figure and the sheets vacuum formed, after which the halves are further forwarded to depress frame 71, 63 relative to carriage 49 thus enabling the edges of the mould halves to engage one another and fuse the sheets therebetween, thus forming a completely closed article (see Fig. 4, not shown). In an alternative embodiment, Figs. 7-9 (not shown), the mould halves are first closed to force the sheets and the hollow article then vacuum formed.
Patent GB-1160567-A (GB)
Title: Alternating Current Amplifiers
IPC: H03F1/34
Filed: 1966-11-15
Abstract: 1,160,567. Negative feedback amplifiers. RHEINISCHE KALKSTEINWERKE G.m.b.H. 15 Nov., 1966 [14 Dec., 1965], No. 51085/66. Heading H3T. An A.C. amplifier, Fig. 6, has a D.C. stabilizing feed-back circuit comprising two inductors connected in series, a capacitor across each inductor and a resistor connected between the common point of the inductors and earth. The feed-back circuit shown has resonance characteristics and is suitable for narrow band amplifiers. The Specification also describes a number of other arrangements, not in accordance with the invention, using R.C. or L.R. filters in the feed-back path.
Patent GB-1338495-A (GB)
Title: Tubular heat exchangers
IPC: F28B1/02
Filed: 1971-11-05
Abstract: 1338495 Tubular heat exchangers; surface condensers KOMBINAT LUFT-UND KALTETECHNIK VEB 5Nov 1971 51511/71 Heading F4S A heat exchanger comprises a tubular jacket 1, having at least one curve in its longitudinal axis and containing a tube 2 having external single or multi-start helical fins, and within said tube, a fluid turbulator consisting of a helical strip 3. The arrangement is particularly intended for use as a condenser in the refrigerating system of an air-conditioning plant. The jacket, adjacent the point of entry of the medium to be cooled, may be lagged or enclosed within a tube of heatinsulating material; and the whole assembly may be helically wound (Fig. 3) or it may as shown be of U-form. Refrigerant vapour is introduced tangentially at 5, and condensate collects in a receiver 8 and is removed at 6, a run-off path within the jacket for the condensate being provided by cut-away portions of the helical finning (Fig. 6) or by eccentrically mounting the finned tube within the jacket (Fig. 7). The helical fins 4 are radially shortened at the refrigerant entry end of the heat exchanger.
Patent GB-1494905-A (GB)
Title: Zener diodes
IPC: H01J37/305
Filed: 1974-11-28
Abstract: 1494905 Semi-conductor device manufacture SILEC-SEMI-CONDUCTEURS 28 Nov 1974 [28 Nov 1973] 51683/74 Heading H1K In the manufacture of a Zener or avalanche breakdown diode involving sequentially coating a semi-conductor substrate with a layer of heavily doped semi-conductor material and at least one layer of metallization all the layers are deposited by ionic sputtering of target materials in a vacuum which is maintained during and between formation of the individual layers. As described 200 ohm cm. P-type silicon wafers are cleared as by etching followed by washing in aqueous and organic solvents and introduced into a sputtering apparatus the details of which are described with reference to Figs. 3 and 4 (not shown). Then with the wafers heated to above 400‹ C. adsorbed impurities are removed by bombardment with an argon ion beam first from the targets and then from the wafers to provide a dislocation free surface. The wafers are then raised to 900‹ C. and an N + layer 1000-1500 Š thick deposited thereon by directing the beam on an arsenic or antimony-doped silicon target. With the wafers at room temperature the beam is directed successively on molybdenum and nickel targets to form layers of molybdenum and nickel respectively 1000 A and 2 Á thick and optionally an intermediate layer of graded composition. After inverting the wafers automatically, or after breaking the vacuum, manually a P + layer of boron-doped silicon and contact layers of molybdenum and nickel are deposited similarly on their back faces.
Patent GB-1045820-A (GB)
Title: Improvements in carburetting devices for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M17/09
Filed: 1964-12-21
Abstract: 1,045,820. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. Dec. 21, 1964 [Jan. 3, 1964], No. 51915/64. Heading F1B. In a carburetter having a main throttle valve 5, Fig. 3, a suction actuated auxiliary throttle valve 2 connected to a fuel metering needle valve, and a fuel nozzle 28 opening to a space subject to the suction intermediate the valves 2, 5, a supplementary fuel passage 54, 56, for cold starting is controlled by a disc-valve 27 and means is provided for reducing the flow section of the starting passage 54, 56, when the valve 2 opens a small amount. In Fig. 3 the passage 54, 56, leading to a starting fuel nozzle adjacent the main nozzle 28, includes a valve 59 which is held open by a lever 63 when the valve 2 is closed. When valve 2 opens a small amount, lever 63 moves away from the spindle 60 of valve 59 which then seats on a seat 58 to close a major part of the flow passage of passage 54, 56, leaving only a small by-pass passage 62 open so that the flow of aerated fuel to the starting nozzle is reduced. The rotatable disc 27, which is manually controlled, has an arcuate port which connects a delivery passage 34, Fig. 4 (not shown), from a starting fuel well 29 to the passage 54 through orifices 53. Disc 27 also includes a port 91 which, during cold starting, connects ports 88, 89, to admit atmospheric pressure to a pipe 93 to render inoperative a device 80 for reducing the mixture richness at reduced loads. The device 80 subjects the float chamber to the suction between valves 2, 5, at reduced loads to lean out the mixture. A cam 65 on disc 27 controls a lever 66 to control the fast-idling position of the valve 5 at cold starting. In a modification (Fig. 7, not shown) the disc 27 is controlled by a bimetallic strip and in Fig. 9 (not shown) the disc 27 is controlled by a thermostat 49 which adjusts a rack 46 engaging a pinion 45 on the disc spindle 38. The thermostat 49 may be heated after starting electrically or by engine cooling water, lubricating oil or exhaust gases.
Patent GB-1145885-A (GB)
Title: Bags with opening devices
Inventor: BARON ARTHUR JAMES
IPC: B65D75/58
Filed: 1966-11-19
Abstract: 1,145,885. Bags with opening devices. BIBBY & BARON (HOLDINGS) Ltd. 31 Oct., 1967 [19 Nov., 1966], No. 51916/66. Heading B8K. A panel 12 can be progressively torn from bag to provide access successively to articles in the bag. In the form illustrated the panel is defined by perforations 16, 17, 18, 19. The bag is formed by folding a sheet of paper or other material and gluing a seam 20 and the bottom 13. The perforations 16 ... 18 avoid the seam. The bag may contain gauze pads.
Patent GB-1309155-A (GB)
Title: Process for the surface treatment of an iron or ferrous alloy material
IPC: C23C10/24
Filed: 1970-11-02
Abstract: 1309155 Coating with Group V carbides by fused salt baths TOYOTA CHUO KENKYUSHO KK 2 Nov 1970 [1 Nov 1969] 52097/70 Heading C7F Ferrous substrates are coated with a carbide of V, Ta or Nb by dipping the substrate in a fused salt bath containing boric acid or a borate, V, Ta or Nb as an element or compound and a source of carbon which may be added to the bath or derived from the graphite crucible containing the melt or from the carbon conduit of the substrate. The fused bath preferably contains 1-70% of V, Ta or Nb and in addition to borax may also contain NaCl, NaF, KCl, P 2 O 5 , NaOH, KOH, sulphates, carbonates or nitrates. The bath temperature is 800-1100C and the substrate is dipped in the bath for up to 30 hours using an air or inert atmosphere. NaCN may be added to the bath as a carbon source and the V, Ta and Nb may be added as the ferro alloys.