baber/WOPTO huggingface dataset:
Patent GB-1132859-A (GB)
Title: Production of phenylalkanes
IPC: C07C2/86
Filed: 1965-11-29
Abstract: 1,132,859. Alkylating benzene; isomerizing alpha-olefins. UNION CARBIDE CORP. 29 Nov., 1965 [27 Nov., 1964], No. 50573/65. Heading C5E. Benzene is alkylated with C 10-15  olefins or alkyl chlorides in the presence of a crystalline molecular sieve which is capable of absorbing benzene, has a silica to alumina ratio of at least 3À0, and has no more than 90% of its aluminium atoms associated with monovalent cations. Suitable sieves are zeolites L and Y, which may be used in conjunction with up to 95 wt. per cent of a silica/alumina composite. The cations of the sieve may be at least partly exchanged with various proportions of other cations, particularly polyvalent cations (e.g. Ba, Mg, Ca, Cd, Ni, Ce or Co), and may be at least partly decationized. It may be used in the form of a powder or agglomerate, preferably as pellets, and may contain additives in order to assist the pelleting. The alkylating agent may be a random mixture of C 10-15  monochloro - n - alkanes, or a random olefin mixture obtained therefrom by dehydrohalogenation. The amount of terminal chloride or olefin in such mixtures is preferably kept to a minimum, and for this purpose alpha-olefins may be isomerized to internal olefins by contact with metallic sodium, palladium or palladium chloride or potassium tertbutoxide. In examples, the alkylating agent is a random monochlorododecane or a random dodecene. The alkylation products have low contents of the undesirable 2-phenyl isomers. For comparative purposes some of the examples also refer to the alkylation of benzene with random n-heptyl chlorides.
Patent GB-1036330-A (GB)
Title: A process for the recovery of naphthoquinone formed in the catalytic vapor phase oxidation of naphthalene
Inventor: BERNDTSSON BERNDT SIGURD
IPC: C07C46/10
Filed: 1963-12-23
Abstract: Naphthoquinone formed in the catalytic vapour phase oxidation of naphthalene is recovered by feeding the vapour phase mixture containing naphthoquinone, naphthalene and phthalic anhydride to a water scrubber with a water temperature of 30-75 DEG  C. and recovering the naphthoquinone precipitated in the water scrubber. If relatively large amounts of phthalic anhydride are present, the mixture may be pre-cooled before scrubbing so that the major part of the phthalic anhydride separates.  If desired, additional air may be mixed with the vapour phase mixture before it is passed to the water scrubber.
Patent GB-1384336-A (GB)
Title: Telegraphic receiving apparatus
IPC: H04L1/20
Filed: 1972-11-03
Abstract: 1384336 Digital transmission; signal testing ITT CREED Ltd 3 Nov 1972 50695/72 Heading H4P An arrangement testing whether a received signal is not spurious measures the signal and accepts it as genuine only if it has a minimum length but disregards fading if it is of less than a certain duration. The arrangement comprises a counter driven by a clock which is released on appearance of a transition, and which provides an output signal at the end of a first determined period indicating a valid signal, with a second counter reset and held at zero at the first transition and released on failure of the signal when the second counter, also driven by the clock at a second determined count resets the first counter to zero. The first counter is also reset by the appearance of a second received signal within the first determined period. Applied to a telegraph circuit, appearance of a space (mark) signal sets toggle 3 to A and applies an inhibit reset of counter 4, also starts first counter 5 driven by clock 7. If a determined count is reached the signal is considered genuine. If the signal fails, although counter 5 continues, inhibit is removed from counter 4 and if a second determined count is reached counter 4 gives a pulse on line 10 which resets toggle 3 to B and resets counter 5. If however, a space signal is not received before counter 4 times out this is reset and counter 5 on reaching the first determined count provides a "valid" signal on line 9. The arrangement may alternatively monitor mark signals.
Patent GB-1084838-A (GB)
Title: Improvements in tobacco pipes
Inventor: JEANNIN PAUL BENOIT
IPC: A24F1/22
Filed: 1964-12-15
Abstract: 1,084,838. Tobacco pipes. SASIENI Ltd. Nov. 12, 1965 [Dec. 15, 1964], No. 51064/64. Heading A2M. A tobacco pipe comprises a cup-shaped bowl 10 detachably engaged with a cupped bowl support 11, and a stem 12 extending from the bowl support, the bowl having an opening 10b in its base through which smoke may pass, and a retaining disc 15 disposed below, but detailed from, the base of the bowl for holding an absorbent pad 14 in position in the bowl support. The disc 15 is made of metal, has a pad engaging projection 15b, holes 15c through which smoke may pass, and is fitted into a recess 10a in the bowl. The stem 12 includes an outer wall 12a with openings therein, find an inner wall 12b through which smoke from the bowl passes to the mouthpiece 13. The bowl is engaged with the bowl support by a screw threaded washer having an internal thread for attachment to the bowl and an external thread for attachment to the bowl support. The bowl may be made of briar, and the bowl support and stem of metal.
Patent GB-1400938-A (GB)
Title: Process for preparing a testosterone conjugate ester
IPC: C07J41/00
Filed: 1973-11-06
Abstract: 1400938 Radioimmunoassay of testosterone INSTITUTO FARMACOLOGICO SERONO SpA 6 Nov 1973 51502/73 Heading G1B [Also in Division C2] A method for the radioimmunoassay of testosterone comprises incubating the sample in the presence of a known quantity of T-3-TME labelled with 125 I and a specific antiserum, measuring the radio-activity count of the resulting antigenantibody complex, and comparing this measurement with results obtained by performing similar incubations using the specific antiserum and known quantities of unlabelled testosterone and the labelled reagent. The T-3-TME has the Formula: - and is prepared from testosterone -3(0-carboxymethyl) oxime and tyrosine methyl ester in the presence of N,N-dicyclohexylcarbodiimide in an apolar solvent.
Patent GB-1454690-A (GB)
Title: Hydrogenation of molten aldehydic dimethyl terephthalate
IPC: C07C69/82
Filed: 1974-12-03
Abstract: 1454690 Hydrogenation of molten aldehydic dimethyl terephthalate HERCULES Inc 3 Dec 1974 [2 Jan 1974] 52171/74 Heading C2C In a process for treating molten aldehydic DMT by subjecting it to catalytic hydrogenation with a catalyst that not only promotes hydrogenation of the aldehydic content, but also tends to the temperature of the molten DMT to promote ring hydrogenation, the improvement for minimizing said ring hydrogenation comprises contacting said molten aldehydic DMT at a temperature of from 141 to 240 C. with (1) a quantity of molecular hydrogen sufficient to hydrogenate at least a substantial portion of said aldehydic content and (2) a catalytic quantity of said catalyst for a period of time sufficient for hydrogenation of at least a substantial portion of the aldehydic content, but insufficient for substantial ring hydrogenation,
Patent GB-1530630-A (GB)
Title: Retro-reflective device
IPC: G02B5/124
Filed: 1975-12-19
Abstract: 1530630 Retro reflective road studs FERRO CORP 19 Dec 1975 [10 March 1975] 52178/75 Heading E1G A retro reflective device comprises a concave-convex lens 16 having a cube-corner array 20 disposed across its concavity so that a parallel beam of light emerging from the concave surface is reflected back by the cube corners and emerges from the convex surface as a parallel beam of greater width. The cube-corner array 20 in the form of a tape secured to the concave side of the lens 16. The device is attached to a vertical or sloping abutment on a road stud 25. The centres of curvature of the lens may be in the same or different horizontal planes.
Patent GB-1521455-A (GB)
Title: Fibre-reinforced metal panels and production thereof
IPC: B32B15/14
Filed: 1976-12-14
Abstract: 1521455 Fibre reinforced panel SOC NATIONALE DES POUDRES ET EXPLOSIFS 14 Dec 1976 [31 Dec 1975] 52193/76 Heading C7F A panel comprising a metal support sheet having on a surface thereof a thin coating of a bonding metal or alloy and adhered to the bonding metal coating, a layer of a fibre reinforced metal matrix. The panel may be produced by placing the support sheet e.g. aluminium on a drum, depositing a layer of the bonding metal e.g. Cu, Zn, Au, Ag, Sn, In, Fe, brass, Au-In alloy or an alloy based on Pb, Sn, Sb and/or Bi by electrolysis, chemical vapour deposition or physical vapour deposition, winding the fibres e.g. Boron carbide coated Boron filaments on to the coating and plasma arc spraying the metal matrix e.g. aluminium alloy on to the fibres using an argon 5% hydrogen plasma gas.
Patent GB-1326980-A (GB)
Title: Transport system for a packing machine
IPC: B65B5/10
Filed: 1971-11-10
Abstract: 1326980 Packaging articles in layers in containers HOLLANDSE SIGNAALAPPARATEN NV 10 Nov 1971 [17 Nov 1970] 52292/71 Heading B8C A packaging machine for transporting articles from a higher level 2 uniformly down into a receptacle 3 comprises a system of substantially vertical conveyer runs 17, 18 which are connected, at their lower ends, to a shoot 6 to form an integral unit 1, 6 the latter being rotatably mounted, at its upper end, to a shaft 7 and the receptacle 3 being carried by a platform 12 which is indexable downwardly by distances corresponding to the height of the articles being packaged. Four vertical conveyer runs, only two 17, 18 of which are shown, each has a series of article-carrying platforms 44 and half-round strips 45 which are adapted to engage in recesses provided in discs 41, 42 carried by a lower support shaft 39, to prevent slippage of the conveyer belt. The conveyers 17, 18, &c., deliver articles into aligned shoots 13-16 each of which accommodates a series of counterweighted, pivotal, flaps 19-23; 24-28; 29-33; 34-38, the flaps in a series being spaced by an amount equal to about half the height of an article being packaged and each flap being so counterweighted that it will not pass an article below on to a succeeding flap until the article has settled level on that flap. The counterweights are carried by pins secured to the flaps 19-22; 24-27; and 29-32, the counterweights of the lowermost flaps 23, 28, 33, 38 consisting of weighted strips secured to their free ends. The counterweights may be replaced by springs.
Patent GB-1202069-A (GB)
Title: Method and apparatus for dehydrating green crop
Inventor: ASPEGREN JOHN AXEL
IPC: A23K3/02
Filed: 1967-11-17
Abstract: 1,202,069. Drying green crop. ALFA-LAVAL A.B. 17 Nov., 1967 [18 Nov., 1966], No. 52367/67. Heading F4G. A method of dehydrating green crop comprises compressing the crop, heating the compressed crop to between 100 and 170 C. and releasing at least some moisture given off by the crop while it is held in its compressed state so as to obtain a coherent end product. The crop may be heated indirectly by a water, steam or oil jacket or electrical means or directly in an electromagnetic field. As shown, green crop is fed to and compressed in pressure channel 3 by pistons 1, 2. The crop is heated in channel 3 by heating jacket 4 and space 5. The dried compressed crop is cut at Q to form wafers or briquettes. The channel 3 is divided by radial partitions into a number of spaces extending longitudinally. The channel 3, in the direction of crop flow, may be convergent and may comprise a first section with openings for release of mechanically expressed liquid, a second section with no openings and a third section with openings for the release of steam given off by the crop. The crop may be heated to different temperatures along its length of travel in channel 3.
Patent GB-1482559-A (GB)
Title: Hammer bank assembly
IPC: B41J9/10
Filed: 1974-12-09
Abstract: 1482559 Selective printing DATAPRODUCTS CORP 9 Dec 1974 [10 Dec 1973] 53170/74 Heading B6F A hammer-bank assembly for a high speed printer with a movable type-bearing surface has interleaved hammer and magnet members and comprises a plurality of hammer modules 42 and magnet modules 44 supported on tubular members 46, 48. Each hammer comprises a rigid coil structure 100 and tip 112 mounted on conductive springs and when current passes through the coil the hammer moves towards paper 18 due to the effect of the adjacent magnet members. Adjustable backstops 148 are provided for each hammer. The assembly is movable parallel to supports 46, 48 to allow access by each hammer to two character columns.
Patent GB-1154459-A (GB)
Title: Improvements relating to methods of treating photographic sheet materials with a liquid
Inventor: LAND EDWIN HERBERT
IPC: G03D9/00
Filed: 1966-11-28
Abstract: 1,154,459. Photographing processing apparatus. INTERNATIONAL POLAROID CORP. Nov. 28, 1966, No. 53204/66. Heading G2A. Exposed light-sensitive sheets are processed by passing them through a processing liquid upon which floats a non-volatile inert liquid to protect the processing liquid from the atmosphere. The inert liquid may be a mineral oil when the processing liquid is aqueous. The oil is normally removed from the area into which the film passes. This may be achieved by dividing the processing tank into two sections near the surface and then (a) pass a carrier sheet into the first section and rapidly through to the second, thereby carrying the inert liquid to the second section, Fig. 6 (not shown), or (b) forming the dividing wall into two parts which may be moved apart at the surface and then the sheet passed into the processing liquid between the parts, Fig. 2 (not shown), or (c) employing a V-shaped trough 38 as in Fig. 3 with a narrow lower opening which is placed beneath the surface of the processing liquid 18 and then the film is fed therethrough. When it desired not to coat the emergent sheet with the inert liquid a second inverted V-shaped trough 42 may be employed, through which the emerging sheet passes. The V-shaped troughs 38 and 42 may be carried on single pivoted arm to move them into position simultaneously.
Patent GB-1137198-A (GB)
Title: Improvements in or relating to telephone exchanges
Inventor: GARA GEORGE
IPC: H04M3/56
Filed: 1967-11-23
Abstract: 1,137,198. Conference circuits. STANDARD TELEPHONES & CABLES Ltd. 23 Nov., 1967, No. 53327/67. Heading H4K. A conference circuit, in a time division multiplex exchange in which each subscriber sends over a GO highway and receives from a RETURN highway, comprises pairs of terminals SPI, SPO for each conference member, the terminal SPI connecting the GO highway to a demodulator D and an amplifier A1 with a low impedance output, the terminal SPO being connected to the RETURN highway and the audio output of a low impedance amplifier A2 being modulated on to the highway by the appropriate time slot pulses, the outputs of each of the amplifiers A1 being connected to the inputs of all amplifiers A2 other than that amplifier A2 feeding the associated RETURN highway, the inputs to the amplifiers A2 being applied over equal valued resistors R to comprise a summing circuit. The conference circuit may be dialled for by the members at a prearranged time or the members may be accumulated to the conference by one of the members.
Patent GB-1163850-A (GB)
Title: Process for the Manufacture of vinyl Acetate
IPC: B01J23/52
Filed: 1967-11-23
Abstract: 1,163,850. Vinyl acetate. KNAPSACK A.G. 23 Nov., 1967 [23 Nov., 1966], No. 53339/67. Heading C2C. Vinyl acetate is prepared by reacting ethylene, acetic acid and molecular oxygen in the gas phase, at temperatures between 120‹ and 250‹ C., under a pressure of between 1 and 10 atmospheres absolute, in the presence of a carrier catalyst containing metallic palladium and metallic gold, and in which the reaction is carried out continuously in the presence of a cycle gas containing 5 to 60% by volume carbon dioxide. The vinyl acetate, water, and unreacted acetic acid are then liberated and isolated in the vapour form by a process which comprises condensing the said compounds under pressure, continuously recycling, as a cycle gas to the reaction zone, the residual reaction gas formed substantially of unreacted ethylene, unreacted oxygen and carbon dioxide, allowing the carbon dioxide content of the cycle gas, which increases during each passage through the reaction zone, to increase to a predetermined value between 5 and 60% by volume, and continuously freeing the reaction gas and/or residual reaction gas from carbon dioxide in excess of that predetermined value.
Patent GB-1453758-A (GB)
Title: Securing device for loose-leaf binders
IPC: B42F13/00
Filed: 1974-12-12
Abstract: 1453758 Filing papers &c ROBERT KRAUSE KG 12 Dec 1974 [13 Dec 1973] 53851/74 Heading B6E  A loose-leaf securing device for a loose-leaf binder having a plurality of rings 11, Fig. 3, carried by a support strip 15, is formed by a polyethylene strip 1, subdivided by fold lines 2 to 4 into four sections 5 to 8, the first and third sections being provided with slots 9, 10, and the fourth section being provided with a ring engaging hole 13. To hold the loose-leaves 16 and prevent the rings 11 from opening the first section 5 is slipped over a closed ring 11, which is subsequently opened for threading the leaves 16 and then closed again. Subsequently the second and third sections 6, 7, respectively, are folded about the fold lines 2, 3 and the third section 7 is additionally slipped over the closed ring 11. The fourth section 8 is finally folded in the opposite direction about fold line 4 and the hole 13 engaged about the half ring 11a. Sections 7 and 8 are of a length to provide a holding down tongue for the leaves 16.
Patent GB-1512380-A (GB)
Title: Frames for photographs
IPC: A47G1/14
Filed: 1975-12-09
Abstract: 1512380 Picture frames ENGRAVING SPECIALISTS (LEICESTER) Ltd 9 Dec 1975 [16 Dec 1974 22 Jan 1975 27 March 1975] 54331/74 2752/75 and 13033/75 Heading A4X A frame for photographs and the like comprises a back panel 12 which is a press fit in a recess 8 of a surround 2 and has slots 16 for engaging a wall hook or a strut 20. The frame is moulded of plastics material, and projections 14 on the panel 12 engage in notches 10 in the surround 2. The slots 16 are serrated at 18 and they may be countersunk in the front surface of the back panel 12. An intermediate panel, e.g. a card, may be interposed between the photograph and the back panel and the back panel may be ribbed on its front face to press the photograph into contact with a clear glass or plastics sheet (not shown). In a second embodiment, Figs. 5 to 7 (not shown), projections (38) on the surround (32) engage in recesses (42) in the back panel. The serrations in each of the slots are replaced by a single notch. Each slot may have a sloping inner edge to facilitate the engagement of a support.
Patent GB-1100109-A (GB)
Title: Spark-gap switching devices
IPC: H01J17/00
Filed: 1965-12-22
Abstract: 1,100,109. Spark gaps. BROWN, BOVERI & CIE A.G. 22 Dec., 1965 [24 Dec., 1964], No. 54389/65. Headings HID and HlX. A spark-gap switching device includes two main electrodes, each of which forms a spark gap with an intermediate electrode to which a supplementary potential less than the breakdown voltage is applied, and two ignition electrodes for co-operation each with a respective one of the main electrodes, the application of an ignition pulse to the ignition electrodes being effective to trigger simultaneous discharges between the intermediate electrode and both main electrodes. The supplementary potential from a generator 15 is applied via the sheaths of cables 11 and 12 to the intermediate electrode 8, through which pass insulated ignition electrodes 9 and 10 fed with pulses from generator 16. The device may be employed to produce a current surge, e.g. for plasma experiments, in an oscillatory circuit (Fig. 1, not shown) in which a capacitor is discharged through a load, by short-circuiting the load at a current maximum (i.e. a voltage zero) of the discharge. If short-circuiting at the first current maximum only is required, only one of the balancing capacitors 13, 14 connecting the bus-bars 4, 5 is required. The length of the spark gap between the ignition and the intermediate electrodes is preferably half that between the ignition and main electrodes, and the device may be housed in a vessel at either reduced or excess pressure, to permit reduction in the electrode spacings. A mechanical switchslower, but of lower resistance-may advantageously be connected in parallel with the device, and switched subsequent to the latter. Wear around the ignition electrodes is reduced by mutual repulsion of the arcs.
Patent GB-1406894-A (GB)
Title: Method for etching tin oxide or indium oxide deposited on glass
IPC: C03C17/23
Filed: 1972-11-24
Abstract: 1406894 Electrolytic removal of coatings of tin or indium oxide ING C OLIVETTI & C SpA 24 Nov 1972 [3 Dec 1971] 54430/72 Heading C7B A layer of a reducible oxide of tin or indium is selectively removed from a glass member by masking the surface thereof to leave exposed those areas of the oxide required to be removed, and cathodically reducing the oxide in an electrolyte of H 2 SO 4  and HCl, the reduced oxide then being dissolved by the electrolyte. Masking may be effected by vacuum depositing first a layer of Ni- Cr and then a layer of gold, coating with a photoresist, selectively exposing the photo-resist, and thereafter selectively etching the gold and Ni-Cr layers to expose those areas of the oxide required to be removed from the glass member.
Patent GB-1082340-A (GB)
Title: Drawing out guide, in particular for drawers and the like
Inventor: HEINIGER-SCHAR PAUL FRIEDRICH
IPC: A47B88/12
Filed: 1965-12-23
Abstract: 1,082,340. Drawer guides. R. KRAUSE. Dec. 23, 1965, No. 54696/65. Heading A4B. A drawer 1a is slidably mounted in a housing 2a by guides 3, 4 at the sides of the drawer, one guide 3 comprising interengaging runner parts 6, 7 which allow movement only in the direction of sliding and the other guide 4 comprises a compensating guide allowing movement in both the direction of sliding and in a direction across the width of the drawer. As shown, channel section rails 7, 18 secured to the drawer sides slide by their upper sides 12, 22 on fixed rails 6, 19 secured to the walls 2a of the housing. The channel rails 7, 18 may be inverted so that the free end of a lipped portion 10 bears on the fixed rails. The fixed rails may be of channel, angle or Z-section.
Patent GB-1200475-A (GB)
Title: Improvements in or relating to fluid pressure power units
Inventor: DEIBEL RAYMOND A
IPC: F15B15/26
Filed: 1967-12-01
Abstract: 1,200,475. Controlling vehicle lamps. TRICO PRODUCTS CORP. 1 Dec., 1967 [5 Dec., 1966], No. 54756/67. Heading F4R. [Also in Division F1] The rod 32, Fig. 1, of a vacuum-operated diaphragm motor is releasably latched in its upper end position by engagement of a groove 40 in the rod with spring tabs 62 of a detent 56, Fig. 2, floatingly mounted between tabs 54 and shoulders 52, Fig. 3, of a retaining plate 48 rigidly secured to the upper end wall of the motor housing 20. The upper end of rod 32 is connected to retractable headlamp assembly 12. In operation and with a manual control rod 14 in the position shown, a lighting switch 70 is closed and a vacuum line 120 is connected through a slide valve 82 and a line 128 to the lower chamber 90b of a vacuum motor which positions a slide valve 96 so as to connect a branch 124 of vacuum line 120 to a line 130 leading to the upper chamber 26a of housing 20 and thereby hold diaphragm assembly 22 in the position shown; the lower housing chamber 26b being connected to atmosphere through a line 132. Movement of control 14 to the left results in switch 70 being opened and slide valves 82, 96 being so positioned as to apply vacuum to housing chambers 20 and 90 thereby retracting diaphragm assembly 22, rod 32 and headlamp assembly 12.