baber/WOPTO huggingface dataset:
Patent GB-1224846-A (GB)
Title: Horological time display
IPC: G02F1/055
Filed: 1969-07-31
Abstract: 1,224,846. Electric timepieces. TIMEX CORP. July 31, 1969 [July 31, 1968; June 12, 1969], No.38560/69. Heading G3T. A timepiece comprises a case 10, a time base 17, an electronic circuit 16, a dial plate 13, a crystal 12 and a time display including an electrooptical material in the form of a liquid crystal or a ferro-electric ceramic. A battery 14 is connected to the time base 17 which is preferably a piezo-electric crystal, the oscillation frequency of which is stepped down by fifteen binary divider circuits, three of which 18-20 are shown, to provide an output of one pulse per second. The dial plate, which is electrically conductive, is connected to a terminal of the battery and sixty radial lines 24 of conductive, transparent material such as tin oxide are printed on the inner surface of the crystal 12. A liquid crystal such as 6-methoxy-2-napthoic acid which is normally clear but which scatters light in the presence of an electric field fills the space between the crystal and the dial plate. Voltages applied at successive second intervals to the lines 24 therefore provide a seconds indication for the timpiece. A second series of sixty conductive lines each in the form of the segments separated by a non- conducting gap provide a minute hand indication 31 when voltages are applied to both segments and an hour hand indication 32 when a voltage is applied to only one segment. Instead of changing from being a clear to a light scattering material the liquid crystal may change colour. In a modification the conductive lines are replaced by three rings each of which is formed by sixty segments of transparent conductive material. A watch is also described in which a series of sixty radial lines provide the seconds and minutes indication whilst a series of twenty four shorter radial lines provide half-hourly indications. A watch using a ferro-electric material such as a solid solution of lead zirconate, lead titanate and bismuth oxide which is pressed and heated is described. Regions of the material become transparent in the presence of an electric field to provide the time indication. A logic circuit and the inter-connections between groups of the radial lines to ensure the correct sequential operation of the time indication are described.
Patent GB-1460478-A (GB)
Title: Production of stable lubricating oils by sequential hydrocracking and hydrogenation
IPC: C10G45/52
Filed: 1974-09-04
Abstract: 1460478 Lubricating oils CHEVRON RESEARCH CO 4 Sept 1974 38718/74 Headings C5E and C5F Lubricating oil having good UV stability is produced by catalytically hydrocracking a hydrocarbon feedstock, boiling in the range 700-1200‹ F., at a per pass conversion of at least 20 volume per cent to materials boiling below the initial boiling point of the feedstock and hydrogenating effluent from the hydrocracking zone at 400-700‹ F., 1500-5000 p.s.i.g., a CHSV of 0À2 to 1À5 and a hydrogen supply rate of 500 to 20,000 SCF/barrel using a catalyst comprising a non-zeolitic refractory oxide comprising silica-alumina and palladium. The feedstock can be a straight run gas oil, deasphalted oil, vacuum gas oil or atmospheric residua. The hydrocracking can be carried out at 500-900‹ F. and 500-10,000 p.s.i.g. using a catalyst such as nickel sulphide-tungsten sulphide on a silica-alumina-titania support. In the example the use of a hydrogenation catalyst consisting of 0À4% Pd on a 40-60 weight ratio silica-alumina is compared to the use of a prior art catalyst comprising nickel oxide, tungsten oxide, silica, alumina and titania. Zinc bispolypropylene phenyl dithiophosphate can be added to the lubricating oils.
Patent GB-1396080-A (GB)
Title: Process for the oxidation of carbon monoxide and hydrocarbons
IPC: B01J23/84
Filed: 1973-08-16
Abstract: 1396080 Purifying I C engine exhaust gases HOECHST AG 16 Aug 1973 [31 Aug 1972] 38736/73 Heading F1B Carbon monoxide and/or hydrocarbons in I.C. engine exhaust gas are oxidized by passage together with an oxygen containing gas, e.g. air, containing less than the amount of oxygen necessary for complete oxidation of the carbon monoxide or hydrocarbons over a catalyst containing copper oxide in a first reaction zone to effect partial oxidation of the carbon monoxide or hydrocarbons. The resulting gas together with added oxygen-containing gas containing more than the amount of oxygen necessary for complete oxidation of the carbon monoxide or hydrocarbons is passed over a further portion of the same copper oxide catalyst in a second reaction zone. The first and second zones may contain the same amount of catalyst and the oxygen-containing gas supplied to the first zone may contain between 30 and 90% of the oxygen necessary for complete oxidation of the carbon monoxide or hydrocarbons. The exhaust gas entering the first zone may have a temperature between 100 and 400‹C. The copper oxide catalyst may include an oxide of manganese and/ or nickel and/or cobalt and may be deposited on a barium aluminate and/or silicon dioxide and/or titanium chloride and/or aluminium oxide carrier.
Patent GB-1445625-A (GB)
Title: Generator with decade frequency adjustment
IPC: H03L7/197
Filed: 1973-08-16
Abstract: 1445625 Automatic frequency control WANDEL U GOLTERMANN 16 Aug 1973 [16 Aug 1972] 38819/73 Heading H3A A frequency generator with decade adjustment using a v.c.o. 1 whose control voltage is obtained from an analogue phase detector 3, e.g. a sample and hold type, fed with a reference signal from source 7 and a signal derived from oscillator 1 via a pulse frequency divider is characterized in that the oscillator frequency may be adjusted by adding or subtracting input pulses to divider 6 in dependence on control signal 8. The output from oscillator 1 is converted to pulses by pulse former 10, and if no pulse is present at input 8 AND gate 11 is enabled by the output from bi-stable 15 to pass the pulses from 10 via delay 12 to the input of divider 6. Whenever an input pulse is applied at 8, the state of bistable 15 is changed to inhibit one pulse from being applied to divider 6, so that the division factor is varied. The divider 6 itself may be also variable. The pulses 8 are non-harmonically related to the oscillator frequency and produce an interference signal which may be filtered by filter 2. This filter may have a time constant which varies for different amplitude signal, Fig. 3 (not shown). The input 8 may be derived from further dividers, Figs. 3-7 (not shown), and harmonically related pulses may be added, Fig. 6 (not shown). In the embodiment of Fig. 6 (not shown) compensation for the interference signal is provided by a D/A converter (40) whose output is added to that from a sawtooth generator (41) driven by the reference oscillator (7).
Patent GB-1525468-A (GB)
Title: Control mechanisms for a bicycle transmission
IPC: B62K23/06
Filed: 1975-09-22
Abstract: 1525468 Change-speed control A E ARMSTRONG 22 Sept 1975 [23 Sept 1974] 38859/75 Heading F2D [Also in Division B7]  A bicycle gear control device comprises a rotatable member 60 connected in use to the gearing 16 by a biased member, e.g. 14, stop means 32 engageable with the member 60, and a manually operated actuator 38 movable from a rest position, Fig. 1, against the action of a spring 108. To change gear in one sense the actuator is moved from the rest position to a position, Fig. 3, in which the actuator disengages the stop means 32 from the rotatable member 60. The member 60 can then rotate under the influence of the biased member until it contacts an abutment 103 on the actuator, and the actuator is then released to be returned to its rest position by the spring 108 whereupon the member 60 can continue to rotate under the influence of the biased member until it is reengaged by the stop means 32 and the gear change is completed. To change gear in the opposite sense the actuator 38 is rotated from the rest position beyond the Fig. 3 position such that the abutment 103 drivingly engages and advances the member 60 against the action of the biased member, Fig. 5, and, when clear of the actuator, the stop means 32 re-engages the member 60 to hold it in its advanced position and complete the gear change, the actuator then being released to return to its rest position.
Patent GB-854414-A (GB)
Title: Electrolytic capacitors
IPC: H01G9/06
Filed: 1957-12-13
Abstract: 854,414. Electrolytic capacitors. FANSTEEL. METALLURGICAL CORPORATION. Dec. 13, 1957 [Jan. 14, 1957], No. 38864/57. Class 37 An electrolytic capacitor of the type in which the casing 11, which may be of silver, functions as the cathode, is provided with a porous anode 17, e.g. of tantalum, which has a base support 22 made of a material which is electrically non- conducting, is inert to the electrolyte over a wide range of temperatures, and can be extruded or compression moulded. The support 22, Fig. 3, has an annular ring 23 which acts as a spacer between the side walls of the anode and the cathode, and a pair of legs 25, 26 joined by a cross-member 27 carrying a downwardly projecting button 28. The electrolyte may be sulphuric acid or lithium chloride. A tantalum or other suitable film-forming metallic plate 18 is secured to the top of the anode 17 as by welding and rests on an insulating washer 15 on a shoulder 14 formed in the casing 11. A gasket 16 secured by a bead 19 formed on the casing 11 provides a seal, the seal being improved by annular ribs 20, 21. A tinned copper wire is soldered to the cathode as at 31, and a nickel wire 32 is welded to a tantalum wire 33 which is welded to the plate 18 and extends into the anode as at 35.
Patent GB-347173-A (GB)
Title: Improvements in, and relating to, saws, milling cutters and other rotary tools for cutting or milling wood or metal
IPC: B23P15/34
Filed: 1929-12-19
Abstract: 347,173. Saws &c. SPEAR & JACKSON, Ltd. and COOMBE, L. J., Aetna Works, Savile Street, Sheffield. Dec. 19, 1929, Nos. 38969/29 and 1753/30. [Class 145 (ii).] Inserted tooth saws or other rotary tools for cutting wood have the teeth undercut and tipped, faced or topped with steel or alloy known to have high cutting qualities which forms the actual cutting faces or edges. The steel or alloy insertions a may be let into recesses in the front faces of the teeth b, as shown in Fig. 1, or in the top surfaces, or may stand proud as shown in Fig. 3. Alternatively the insertions may be dovetailed into recesses in the teeth. The insertions may be made of alloy known under the Trade Marks " Stellite " or " Widid Metal" and may be secured by welding, brazing, fusion or mechanically. The insertions may be of varying thickness and may be flush with the adjacent edges of the teeth or may project to give clearance. Several teeth may be formed in a segment and secured in a recess in the body or holder. Specifications 5044/01, [Class 145, Wood &c.], and 202,649, [Class 83 (iii), Metals, Cutting], are referred to.
Patent GB-359804-A (GB)
Title: Improvements in grate bars for furnaces
IPC: F23H17/12
Filed: 1930-12-29
Abstract: 359,804. Firebars. BOHRMANN, L., 5, Rossmarkt, Frankfort-on-Main, Germany. Dec. 29, 1930, No. 38978. [Class 51 (i).] A :firebar 1 for fixed or movable grates has a hollow web 6, 7 thickened at the top by vertical ribs arranged in staggered relation and provided with apertures 8, 9 in staggered relation in the sides of the hollow web. Strengthening ribs 5 are provided at the lower part of the web and slots 3 for the admission of air to the fuel are arranged in the upper surface of the bar, the length of the slots being equal to the distance between the slots. In a modification the top of the bar is closed.
Patent GB-846449-A (GB)
Title: Improvements relating to vehicle heating and ventilating installations
IPC: B60H1/00
Filed: 1958-12-03
Abstract: 846,449. Heating and ventilating vehicles. DAIMLER-BENZ A. G. Dec. 3, 1958 [Dec. 4, 1957], No. 39049/58. Class 137 In a vehicle heating and ventilating apparatus, the centre chamber I of a hollow air trunk extending the width of the vehicle, houses an impeller 8 with its motor 9 and an adjustable fresh air inlet 11, and is connected via opening 7 to an air distributor box 16 which contains a heater 17 fed by the engine cooling water, oppositely directed air conduits 19 leading to defroster nozzles in the ends of the air trunk, an air duct 23 leading to the front seats of the vehicle, air duct 24 leading to the rear seats, and a rockable damper 22 and flap. 25. Flaps 12 and 21 regulate the supply of fresh and recirculated air to the distributer box, operation of these flaps being effected simultaneously by rocking lever 30 so that as one is opened the other is closed and vice versa. Damper 22 operated by rocking lever 28 has two side walls and a rear wall 22a which simultaneously open conduits 19 and close opening 23 or vice versa while the hinged flap 25 operated by lever 29 regulates the opening 24. Regulating flaps or rocking nozzles supplying warm air to the front side windows also branch off conduits 19 while a baffle 36 on which the levers and controls are mounted deflects the air entering the front of the vehicle via opening 23. The hot water flow to heater 17 is progressively controlled through valve 18 and the blower output is also progressively regulated. A draught free air flow is provided by connecting the air space between air permeable panelling and the roof of the vehicle to the external atmosphere.
Patent GB-1136072-A (GB)
Title: Improvements in or relating to the preparation of 10--methyl steroids
IPC: C12P33/00
Filed: 1964-09-25
Abstract: 1,136,072. Preparation of 10 α-methyl steroids. T. D. THREADGOLD (Philips' Gloeilampen Fabriken N.V.). 22 Dec., 1965 [25 Sept., 1964], No. 39168/64. Heading C2U. The invention comprises a process for producing a 17-keto or 17-hydroxy-9#, 10α- androstane by subjecting 20-keto-9#, 10α- pregnane not containing a 17α-hydroxy group to the action of Helicosporium fungi or spores or oxygenating enzyme systems thereof.
Patent GB-870899-A (GB)
Title: Improvements in or relating to clamping devices
IPC: B23B31/20
Filed: 1959-11-20
Abstract: 870,899. Chucks. HOLMBERG, A. Nov. 20, 1959 [Nov. 20,1958], No. 39361/59. Class 83 (3). A clamping device for a lathe spindle or a quick-acting clamp comprises a spring-urged collet 15, Fig. 1, slidably keyed against relative rotation to a sleeve 16 at 25 coaxial with a clamping knob 18 and a pin 22 in the knob engaging a bayonet slot 23 in the sleeve. A rod on which the work is located is passed through the collet until the sleeve 16 abuts the work, further axial movement of the sleeve contracts the collet on to the rod. The knob is pressed against the work, the collet and sleeve moving further into the knob and compressing the spring 20, and the pin 22 in the knob enters the long leg of the slot 23, Fig. 2, which is angled towards the end of the sleeve, thus on rotation of the knob, the work is clamped by the knob. In a modification, two collets 26, 26A, Fig. 3, having balls 29, 30 in semi-circular grooves 27, 28 in the collets or in a sleeve 43, are mounted in supports 31, 32, secured together, the collet 26 being urged away from the support 31 by a spring 48, and the collet 26A being secured axially in a screwed sleeve 35. In operation, the sleeve 35 is screwed into a bush 34 secured in the support 32 by a screw 41 engaging a copper lining 42, by a hand wheel or lever 40, thus forcing the balls 30 further into the sleeve 43 and then moving the sleeve to the left against the spring 48 to engage the balls 29. The collets are contracted on to a bar 49 to be clamped and the collets with the bar 49 may be moved to the left together. The collet 26A may be omitted and only one seating provided on the sleeve 43 and the balls may be located in grooves in both the sleeve and the collet, one of the grooves running axially of the collet, and the spring 48 may be replaced by spring washers.
Patent GB-1116116-A (GB)
Title: Process for preparing highly elastic linear polyurethanes
Inventor: NEGISHI EIICHI
IPC: D01F6/72
Filed: 1966-09-02
Abstract: Highly elastic linear polymers are prepared by reaction in an inert solvent (e.g. dimethylformamide, dimethylacetamide) at least one linear prepolymer having NCO groups at both its ends and having a M.W. of at least 700 with an aminohydrazide of M.W. not greater than 140 and having as one of its end groups a primary amino group and at the other end a -CONHNH2 group, e.g. aminoacetic acid hydrazide and b -aminopropionic acid hydrazide. The initial prepolymer may be prepared by reacting a polyglycol of M.W. 500 to 4000 with an aromatic isocyanate of high symmetry. Examples describe the preparation of highly elastic fibres.
Patent GB-1123187-A (GB)
Title: A method for the manufacture of an adhesive sheet and an adhesive sheet produced thereby
IPC: C09J7/02
Filed: 1965-09-15
Abstract: 1,123,187. Laminates. M. HOSHINO. 15 Sept., 1965, No. 39426/65. Heading B5N. [Also in Division B8] A method of making a laminated sheet comprises the steps of constructing a laminated sheet consisting of a film 11 having pressure sensitive adhesive layers 12 and 13 on both faces thereof and a release paper sheet 15 superposed on each adhesive layer, and scoring the laminated sheet (17) so as to cut said film together with said release paper sheets into small pieces but so as not to sever the other release paper sheet. The individual pieces may be detached from the uncut release sheet and used for mounting labels and photographs on to substrates. Specified films are paper, regenerated cellulose, rayon, polystyrene, nylon, polyester, polyvinyl alcohol, polyvinyl chloride, polypropylene polycarbonate and polyethylene.
Patent GB-1407252-A (GB)
Title: Closure mechanism for use with rail vehicle automatic  central buffer couplings
IPC: B61G3/16
Filed: 1972-08-24
Abstract: 1407252 Rail vehicle service line couplings GERMANY MINISTRY OF TRANSPORT 24 Aug 1972 39500/72 Heading B7T A closure mechanism for an automatic rail vehicle central buffer coupling having a coupling housing containing air service line mouthpieces an electrical contact carrying member, and centering guides and catches, comprises a housing containing cylindrical rotatable and axially movable closure members 14 having dummy mouthpieces to engage the air service line mouthpieces of the coupling, an electrical contact body 20 movable to engage the contact carrying member and bridge certain contacts, helical grooves 22 around members 14, a plate releasably fixed in the closure mechanism housing carrying pins 17 to engage the grooves, means to produce synchronous non-rotational axial movement of body 20 with rotational axial movement of members 14, claws 25 projecting to engage the coupling catches torsion springs 13 around the members 14, a handle 16 movable transverse to the axes of members 14, and articulated pawls carried by the handle engaging projections on the members 14 whereby placing the closure mechanism against the coupling housing and operating the handle causes the members 14 to rotate and move axially to bring the dummy mouthpieces into sealing contact with the coupling mouthpieces, the contact body 20 to be brought into contact with the contact carrying member of the coupling, the torsion springs to be wound up, and the mechanism to be locked by engagement of the claws behind the catches, the locks being releasable by releasing the plate to allow the pins to move in the axial direction of the closure members so that the springs rotate the closure members to move the claws out of engagement with the catches. The bridged contacts may energize a tail or travelling light of the train.
Patent GB-872095-A (GB)
Title: Explosion inhibiting method and system
IPC: B65D90/22
Filed: 1958-12-08
Abstract: 872,095. Preventing explosions and fires. POWELL, D. Dec. 8, 1958, No. 39507/58. Class 47. In enclosures containing inflammable liquids, wherein the pressure of vapour over the liquid varies from time to time, fires and explosions in the enclosure are inhibited by venting vapour from the enclosure when the pressure therein exceeds a preselected value and injecting into the enclosure a flammable vapour or gas when the pressure in the enclosure falls below a second preselected value, so that the vapour mixture over the liquid in the enclosure is at all time too rich to burn and is at a pressure exceeding atmospheric pressure. In the exemplified embodiment an enclosure 10 is provided with a differential valve assembly 20 which includes, a vent valve through which vapour from the enclosure is vented to atmosphere when the pressure therein exceeds a predetermined value and an admission valve through which flammable vapour under predetermined pressure from a source 16 is injected into the enclosure when the pressure therein falls below a second predetermined value. The source 16 of flammable vapour includes a tank 22 in which the flammable vapour can be stored under predetermined pressure and a heat transfer unit 24 which can heat or cool as required so as to always maintain the predetermined pressure of the vapour in the tank 22. A portion of the flammable liquid 12, in the enclosure 10, can be tapped off and heated in the tank 22 to provide the source of flammable vapour, but the flammable vapour can be produced from other flammable liquids, natural gases, and liquefied gases.
Patent GB-1519217-A (GB)
Title: Tyre shaping and curing press centre mechanism.
IPC: B29C35/00
Filed: 1975-09-26
Abstract: 1519217 Moulding tyres McNEIL CORP 26 Sept 1975 [7 Nov 1974] 39608/75 Heading B5A A centre mechanism for a tyre press includes a piston rod 56 to which a ring 50 is secured to receive the upper bead of a bladder 25, a cylinder 37 receiving the rod and carrying a ring 30 to which the lower bead of the bladder is clamped and which receives the lower bead of an uncured tyre band B. The rod is driven vertically relative the ring 30 by fluid admitted to the lower part of the cylinder to vary the spacing between the bladder beads for loading and curing respectively. During curing a fluid medium, e.g. steam, is fed into the bladder via passages 51, 82; this fluid communicates with the upper part of the cylinder which is sealed from the lower part by means 70-73 having a drain channel 68. On receipt of an uncured tyre band, Fig. 2, low pressure fluid expands the loader is removed and the upper mould section and piston 60 lowered to close the mould for curing. The lower ring 30 is moved vertically by cylinders 41 with piston rods 42 acting on a yoke 43.
Patent GB-867748-A (GB)
Title: Organosilicic derivatives and processes for the preparation thereof
IPC: C07F7/08
Filed: 1958-12-09
Abstract: The invention comprises cyclohexyl silanes of the formula: <FORM:0867748/IV (a)/1> where R1 and R2 each represent hydrogen or an alkyl radical containing up to 4 carbon atoms and R3 represents an aryl radical.  They are prepared by hydrolysing the corresponding dichloroderivatives, either in acid medium by means of ammonium chloride, or in the presence of sodium bicarbonate, or sodium bicarbonate in combination with aluminium sulphate.  The preparation of 1-methyl-2-(phenyldihydroxysilyl) cyclohexane is described.  The compounds are useful as plasticizers or antistructure agents for diorganopolysiloxane gums, and in an example, the above compound (1,5 parts) is added to 100 parts of a gum prepared by copolymerizing octamethylcyclotetrasiloxane, tetramethyltetravinylcyclotetrasiloxane and tetradecamethylhexasiloxane, 70 parts of silica which has been treated with octamethylcyclotetrasiloxane is added, together with 2, 4-dichlorobenzoyl peroxide dispersed in a silicone oil.  A sheet formed from this mixture is allowed to stand for one month before working on a mill and a specimen is moulded at 125 DEG C. 1-methyl-2-(phenyldichlorosilyl) cyclohexane is prepared by reacting 1-methyl-2-tri-chlorosilylcyclohexane with phenyl magnesium bromide.