baber/WOPTO huggingface dataset:
Patent GB-879268-A (GB)
Title: Improvements in and relating to the pyrolysis of oil-shale and the like
IPC: C10G1/02
Filed: 1958-12-09
Abstract: 879,268. Distilling oil-shale. ASPEGREN, O. E. A. Dec. 9, 1958 [Dec. 11, 1957], No. 39743/58. Class 55 (1). A process for the distillation of a solid material which after distillation leaves a combustible residue, e.g. oil-shale, comprises contacting fresh solid material with heated heatcarrying bodies in a distillation zone thereby to distil the solid material, withdrawing combustible residue and cooled heat-carrying bodies from the distillation zone and separately passing them to a combustion zone and a reheating zone respectively, combusting under fluidized conditions the combustible residue in the combustion zone and passing hot combustion gases and burnt residue to the reheating zone to reheat the cooled heat-carrying bodies, and recycling the reheated heat-carrying bodies to the distillation zone. In the apparatus of Fig. 1, coarsely ground shale is fed through a pipe 12 into a rotating kiln 10, which may be of the type described in Specification 633,648, and is distilled therein by contact with heated heat-carrying bodies which are preferably spherical and are introduced into the kiln through a pipe 14. The heat-carrying bodies introduced have a temperature 100-300‹ F. higher than the desired distillation temperature which may be between 850‹ and 1100‹ F. Gaseous products are withdrawn through a pipe 15 and combustible residue, ground by contact with the heatcarrying bodies, passes through a sieving mechanism 16 to a pipe 17 for transport to a fluidized combustion zone 18. The heatcarrying bodies are withdrawn at the opposite end of the kiln by a mechanism 19 and elevated through a pipe 20 to a reheating zone 22. Air for combusting and fluidizing the combustible residue in the combustion zone 18 is supplied through a blower 30 and hot combustion gases and burnt residue pass off at the upper end of the zone 18 into the reheating zone 22 through a grate 29. Reheated heat-carrying bodies collect in a hopper 46 for return to the kiln 10 and combustion gases with entrained burnt residue are withdrawn through a pipe 36 leading to dust separator 38. In a modified form of kiln the heat-carrying bodies and the fresh material to be distilled flow co-currently. In a modified combustion zone the hot combustion gases and burnt residue are withdrawn from the fluidized zone downwardly through a standpipe and in a further modification of the combustion zone a major proportion of the burnt residue is passed to a second fluidized zone and used to preheat air for the combustion zone. In a modified reheating zone the heat-carrying bodies and hot combustion gases and burnt residue flow co-currently through the zone.
Patent GB-1067400-A (GB)
Title: A cyclotron phototube
Inventor: STRAIN ROBERT JOSEPH
IPC: H01J25/49
Filed: 1965-09-20
Abstract: 1,067,400. Photo-electric cells; travelling wave tubes. STANDARD TELEPHONES & CABLES Ltd. Sept. 20, 1965, No. 39903/65. Heading H1D. A phototube has an axial magnetic field 10, a photocathode 3, an anode 4 and a pair of deflecting electrodes 5, 6 which produce a transverse D.C. field so that the beam follows a helical path 11, the fast cyclotron wave on the beam being extracted by an electron output coupler 7 of the Cuccia type. An A.C. quadruple amplifying structure 12 may be provided between " twister " electrodes 5, 6 and the output coupler 7. The device may be used with a modulated light beam incident upon the photocathode or with two incident coherent light beams.
Patent GB-1149068-A (GB)
Title: Stabilized optical systems
IPC: G03B19/18
Filed: 1966-09-07
Abstract: 1,149,068. Sighting devices. BELL & HOWELL CO. 7 Sept., 1966 [7 Sept., 1965], No. 39922/66. Heading F3C. [Also in Divisions G1 and G2] A lens 50, Fig. 5, is stabilized against vibrations,- to steady the line of sight of cameras, telescopes, field glasses, missile guidance systems or other optical apparatus, by mounting it on.a member 52 pivoted at 56 to a gimbal ring 24 which is pivoted at 26, 28 to the casing 4, the ring 24 also receiving a member 80 which is pivoted thereto about an axis parallel to that of pivot 56 and connected by arms and links such as 96, 100 to the member 52 so that movement of member 80 about orthogonal axes is communicated to lens 50, the member 80 being stabilized by a gyroscopic rotor 115. As shown applied to a cine camera an electric motor 14 drives a shaft 142 through a sleeve assembly 182 allowing a slight amount of misalignment of the shafts 180, 142. The shaft 142 terminates in a sphere 150 whose centre is located at the intersection of the pivotal axes of member 80 in gimbal 24 and of the latter in casing 4, respectively, the sphere 150 having a circle of contact with the closed but apertured end of a sleeve 152 on a rotor support arm 116 and point contact with a plug 162. The rotor 115 is rotatably mounted within member 80 by means of bearings on its support arm 116. When the camera vibrates, the axis of lens 50 tends to remain fixed in space, due to the coupling of member 52 to member 80 and the stabilization of the latter by rotor 115, and thus lens 50 moves relative to an adjacent lens 6 to provide a variable prism arrangement which tends to compensate for such movement. When the camera is moved continuously in one direction, however, such as in panning, the friction between sphere 150 and sleeve 152 causes the rotor 115, and thus lens 50, to follow the camera movements. The friction, and thus the rate of erection of rotor 115 into the line of action of the camera, is adjustable by varying the pressure exerted by a threaded plug 170 through spring 174 on the plug 162. If the member 52 pivots through such a large angle that it contacts casing 4 the resulting rapid procession would destroy the stability of the lens and this may be avoided by lining the casing adjacent the fixed lens with a soft material, Fig. 16 (not shown), in which the lens housing tends to embed itself.
Patent GB-1177707-A (GB)
Title: Circuit Arrangement for Preventing Short-Duration Dropouts of a Carrier Frequency Television Signal
IPC: H04N5/94
Filed: 1967-08-31
Abstract: 1,177,707. Television. FERNSEH G.m.b.H. 31 Aug., 1967 [10 Sept., 1966], No. 39934/67. Heading H4F. Specification describes apparatus for avoiding signal drop-outs in the carrier, frequency read out of a video tape recorder and enables the detection of drop-outs of durations less than a carrier period. In the embodiment of Fig. 1, the frequency-modulated carrier read out signal is applied at F and passes to an output 17, either directly or via a one-line period delay 20 depending on switch 30. The " direct " position of switch 30, as shown, is used when no drop-outs are detected, whereas detection of drop-outs by means 40 and 50 cause the switch to move to the delayed (previous line) signal. Means 40 includes a tapped delay line 10 of relay T,  where T, Fig. 2, is the carrier period and n the number of tappings. Half-wave diodes rectify the signals S 0 , S 1 , S 2 , S 3  at the tappings such that the signal applied to threshold means 50 is normally formed from the successive peaks of the signals S 0  &c., as shown in solid line in Fig. 2. Means 50 produces a signal, moving switch 30 to its upper position, when its input signal falls below a threshold S. This will happen on occurrence of a drop-out-possibly less than T in duration.  In the embodiment of Fig. 3, drop-outs less than a period T in duration are detected by threshold means 50, by converting up the carrier in mixer 12 to a much higher frequency, and detecting absences of peaks in said higher frequency signal.
Patent GB-917465-A (GB)
Title: Oil pelleted carbon black
IPC: C09C1/58
Filed: 1960-11-21
Abstract: An oil bearing pelleted carbon black is prepared by adding water to loose carbon black, agitating the mixture to initiate pelleting, adding an emulsion of oil and water, continuing agitation until pelleting is complete and the oil is uniformly distributed through the pellets and drying the pellets.  The total content of water used may be 90-165%, 70-90% of which is sprayed in the initial stage of the pelleting.  At least 3% of oil is sprayed on the carbon black as an emulsion which contains the remainder of the total water and which is made by agitating a mixture of 5-75% oil, water and 0,5-2% emulsifier, e.g. a polyoxyethylene glycol ester of fatty acids, dialkyl quaternary ammonium chloride or fatty alcohol amine sulphates.  The oil is preferably printing ink oil, e.g. linseed or mineral.  The pellets may be used for rubber production or preferably after drying, e.g. to less than 5% water and containing, e.g. about 5-about 18% printing ink oil for use in ink production and having a density of 16-20 lbs./cu. ft. and a size of +20-60 mesh U.S. Standard Sieve Series.
Patent GB-1005024-A (GB)
Title: Manufacture of naphthalene derivatives
Inventor: HOWE RALPH
IPC: C07C45/28
Filed: 1961-11-08
Abstract: The invention comprises (a) 2-isopropyl-amino - 1 - (1 - methoxy - 2 - naphthyl) - ethanol and pharmaceutical preparations containing it, and (b) the preparation of compounds of the general formula <FORM:1005024/C2/1> (wherein R1 stands for a hydrogen atom or a methyl group, R2 stands for an alkyl group containing not more than four carbon atoms, and the naphthalene nucleus may optionally bear an alkoxy substituent) and acid addition salts thereof by reducing a compound of the formula <FORM:1005024/C2/2> (wherein the naphthalene nucleus may optionally bear an alkoxy substituent) in the presence of an amine or hydroxylamine of the formula R3NR1R2 (wherein R3 stands for a hydrogen atom or a hydroxyl group), optionally followed by acid addition salt formation. 1 - Methoxy - 2 - naphthylglyoxal hydrate is prepared bc heating 2 - acetyl - 1 - methoxy-naphthalene with selenium dioxide, dioxan and water. 2 - Isopropylamino - 1 - (1 - methoxy - 2 - naphthyl) ethanol is of value in the treatment or propylaxis of coronary artery disease, and may be administered orally or parenterally in the form of pharmaceutical preparations (e.g. tablets, pills, capsules, aqueous or oily solutions or suspensions, emulsions or dispersible powders) containing it together with a diluent or carrier. The Provisional Specification defines the invention in wider terms. Specifications 909,357 and 1,005,025 are referred to.
Patent GB-975051-A (GB)
Title: Improvements relating to arrangements for limiting braking moments
IPC: B60T8/26
Filed: 1963-10-10
Abstract: 975,051. Fluid-pressure control of brakes. DAIMLER-BENZ A.G. Oct. 10, 1963 [Oct. 13, 1962], No. 40076/63. Heading F2F. [Also in Division B7] To limit the torque on the half shafts 10, 11 of the steered wheels 12 by the inboard brakes 15, a vehicle braking system includes, between the brakes and the master cylinder 22, a reducing valve 24 which limits the maximum hydraulic pressure in the brake cylinders. The rear wheel brakes 19 may receive hydraulic fluid direct from the master cylinder through conduits 20, 21 or, when conduit 23 replaces conduit 20, receive fluid from the valve 24.
Patent GB-1007011-A (GB)
Title: A process for the manufacture of amino carbohydrates and derivatives thereof
Inventor: GUTHRIE ROY DAVID
IPC: C07H15/04
Filed: 1960-11-22
Abstract: Aminocarbohydrates and derivatives thereof are prepared by reducing the corresponding carbohydrate derivative in which at least one hydroxy radical is replaced by a substituted or unsubstituted arylazo radical.  When the starting material contains one or more protecting groups, the protecting group or some or all of the protecting groups may be removed after the reduction.  4,6 - O - benzylidene - 3 - deoxy - 3 - phenylazoa  - D - glucopyranoside and the corresponding 3 - o - tolylazo -, 3 - p - tolylazo -, 3 - p - chlorophenylazo- and 3-p-fluorophenylazo derivatives are prepared by reacting 7,9-dihydroxy-6-a -methoxy - 2 - phenyl - trans - m - dioxano- [5,4 - e] [1,4] - dioxepan hydrate with phenylhydrazine or the appropriate substituted phenylhydrazine.
Patent GB-1375454-A (GB)
IPC: G11B23/12
Filed: 1972-08-30
Abstract: 1375454 Ink ribbon mechanism INTERNATIONAL BUSINESS MACHINES CORP 30 Aug 1972 [20 Dec 1971] 40159/72 Heading B6F An ink ribbon cassette 14 comprises a chamber increasing in width from its entrance opening towards its exit opening, to receive folds of an endless ribbon 16. The chamber is curved and is defined by a teardrop-shaped casing divided by a curved guide. The cassette is mounted on a wire mosaic print carriage 12 displaced along the print line by a lead screw 30, the ribbon being fed by a roller 78 driven by one of a pair of gear-wheels (92, 94, Figs. 2, 3, not shown) each engaging the shaft carrying the roller 78 through a respective unidirectional clutch (96, 98, Fig. 2) and meshing with a respective rack 100, 102 is that the ribbon is always fed in the same direction regardless of the direction of motion of the carriage 12. The ribbon is twisted at 116 to form a Mobius loop. The ribbon is urged against the roller 78 by a flexible finger 74 engaged by a projection 108 on a pressure lever 104 when the cassette is mounted on the carriage 12.
Patent GB-1284461-A (GB)
Title: Process for the production of polymer images by photographic processes
IPC: G03F7/038
Filed: 1969-08-13
Abstract: 1284461 Photopolymerizable processes FUJI PHOTO FILM CO Ltd 13 Aug 1969 [20 Aug 1968] 40544/69 Heading C3P [Also in Division G2] Polymeric images are produced by developing an image-wise exposed silver halide emulsion layer in the presence of water and of at least one vinyl, vinylidene, itaconate or maleate monomer with, as reducing agent, an α- or #- naphthol, an α- or #-naphthylamine, a 1,2-, 1,5-, 1,7- or 2,3-dihydroxy-ordiamino-naphthalene, 1,2-, 1,5-, 1,7- or 2,3-monohydroxy monoaminonaphthalene and derivatives of these compounds having further substituents other than hydroxy, amino, substituted amino or acetamido and other than the α-naphtha specified in Specification 1,247,251 and the naphthols specified in Specification 1,269,711, and monohydroxyquinoline and 4,8-dihydroxyquinoline and their derivation. Monomers used in the examples are acrylamide, acrylamide/methylene bis-acrylamide, sodium methacrylate, and 1- vinyl - 2,3 - dimethyl imidazolium - p - toluene sulphonate. The invention also comprises a developing solution comprising an aqueous alkaline solution of a reducing agent as defined above and a vinyl or vinylidene monomer, itaoonate or maleate. The reducing agent and monomer may be incorporated into the emulsion or processing solution and the polymerization is preferably carried out in the presence of sulphite ions. The polymeric image may be developed by washing away the unpolymerized areas and/or dyeing.
Patent GB-1162920-A (GB)
Title: Single Common Mode Choke for Plural Groups of Memory Array Signal-Return Line Pairs
IPC: G11C11/06
Filed: 1967-09-06
Abstract: 1,162,920. Circuits employing bi-stable magnetic elements. SPERRY RAND CORP. 6 Sept., 1967 [25 Nov., 1966], No. 40754/67. Heading H3B. In order to prevent inductive and capacitive coupling between drive and sense lines in a memory matrix the input and return portions of a looped drive line are cabled together to form a cable which is coupled to a magnetic core as a common mode choke. In the embodiment of Fig. 1 a coincident current memory comprises eight two-dimensional matrices Quad 0-Quad 7, each matrix having a single sense winding 8 and having orthogonal sets X, Y of drive lines. In order to select one of the cores for reading the appropriate X and Y drive lines are selected, only the Y lines being shown, by closing one of the selected read switches RS0 to RS7 and one of the buss line selection switches BS0 to BS7. All the read lines and their return buss lines are tightly cabled 18 so that a selected read-buss line pair represent a two-wire open transmission line. The cable 18 is coupled to core 16 which functions as a current transformer tending to balance the currents in the selected read line and buss line pair. Thus, if the current flowing in the selected read line equals the output current there can be no loss of selected Y-axis drive line current by means of inductive and capacitive coupling to the associated sense line. The cable 18 and core 16 also presents a high impedance to spurious common mode signals and a low impedance to core driving signals thus rejecting common mode signals before they enter the memory, and thus coupled to the sense line. In the arrangement of Fig. 3 (not shown), current balancing and common mode rejection may be accomplished by a single core in both the read and write selection drive line pairs.
Patent GB-1436072-A (GB)
Title: Grinder
IPC: B24B55/02
Filed: 1974-09-19
Abstract: 1436072 Grinding ROBERT BOSCH GmbH 19 Sept 1974 [26 Sept 1973] 40890/74 Heading B3D A grinder for driving a grinding wheel 7 comprises an elongate driven grinding spindle 6 rotatably mounted at one end in a bearing 5, the other end of the spindle being adapted to receive the grinding wheel, a longitudinal bore 21 in the spindle for supplying flushing liquid to the wheel, and means 22 for supplying the flushing liquid to the bore between the bearing and said other end of the spindle. As described, the grinder has a housing 4 for angle gearing which transmits drive from an electric motor in a housing 1 to the spindle 6 mounted in the ball bearing 5 in a flange 8. A recess in the flange receives a flushing head 9 having a central bore 10 for the passage of the spindle 6. A pair of oppositely-directed shaft seals 14, 15 form a chamber 16 which communicates with radial passages 22 in the spindle and a connector 19 having a cock connected to a supply hose 20 clipped to the grinder. The radial passage 22 connects with the longitudinal bore 21 in the spindle for supplying the flushing liquid to the grinding wheel 7. The bearing 5 is protected by a seal 18 and any liquid which passes the seal 14 can flow through recesses 23. In another embodiment, the seals which are of the annular lip type are replaced by stuffing boxes.
Patent GB-1442434-A (GB)
Title: Process for preparing conjugated diolefins
IPC: C07C11/12
Filed: 1973-08-30
Abstract: 1442434 Conjugated diolefins T KUNUGI 30 Aug 1973 [30 Aug 1972] 40938/73 Heading C5E Conjugated diolefins are produced by reacting C 4 -C 8  monoolefins having a linear chain of at least 4 carbon atoms with O 2  at 170-330 C. in the presence of a catalyst consisting of (1) a platinum group metal component and (2) a salt of an alkali or alkaline earth metal whose anion is inorganic and contains an element selected from halogen, sulphur, nitrogen, phosphorus and boron. The reaction may be carried out in the vapour phase in the presence of an inert gas or steam, or in the liquid phase. The catalyst may optionally be supported on a  carrier such as silica gel, porous glass, activated alumina, zeolite or activated carbon. Component (1) of the catalyst may be in metallic or compound form. Suitable anions in component (2) are halide, oxy acid anions of halogen, S, P, N or B, and cyanide. Examples describe the dehydrogenations of 1-butene, cis-2-butene, 2-methyl-3-butene, 1-hexene, and 1-octene to the corresponding diolefins.
Patent GB-867759-A (GB)
Title: Stator vane assemblies for axial-flow compressors or turbines
IPC: F01D9/04
Filed: 1959-12-02
Abstract: 867,759. Axial flow turbines and compressors. GENERAL MOTORS CORPORATION. Dec. 2, 1959 [Dec. 3, 1958], No. 40942/59. Classes 110 (1) and 110 (3). A stator vane assembly of an axial flow turbine or compressor comprises a sheet-metal shroud ring with a double-walled portion having slots in which the ends of the stator vanes are secured, each axial end of the shroud ring having a radially outward flange and each flange having around its periphery alternate axially and radially directed portions which bear against corresponding faces of a flange on the turbine or compressor casing. Stator vanes 18 are secured to an inner shroud 20 of zig-zag form and an outer shroud 22. The outer shroud has two annular sheet-metal plates 24, 38 forming a boxlike structure 44. To a recess 28 in the annular sheet-metal plate 24 is fitted an abradable ring 30 to form the rotor blade shroud ring. In the box-like structure 44 are formed slots 46 to receive the stator blades 18 which are welded in position. The axial extremities of the shroud ring are bent to form radially-directed flanges 34, 36, the peripheries of which are crimped to form alternate axially and radially-directed portions 48, 50 which are used to locate the shroud on ridges 14 and flanges 12 in the turbine casing 10. The stator vane assembly is formed in two 180 degree segments each held intermediately by a bolt welded to the annular plate 38 and at its ends by flanges clamped between bolted flanges of the turbine casing 10.
Patent GB-1330384-A (GB)
Title: Cryomagentic resonance spectrometer utilizing sample spinning and ejecting structure
IPC: G01R33/30
Filed: 1971-09-03
Abstract: 1330384 Turbines VARIAN ASSOCIATES 3 Sept 1971 [14 Sept 1970] 41147/71 Heading FIT [Also in Division G1] In a nuclear magnetic resonance spectrometer, a sample spinner comprises a rotor 44 driven by tangential air jets 35 at the bottom of a cylindrical stator cavity 24, the arrangement being such that in use the rotor is lifted on a cushion of air into a position where periphery defines with the top of the stator cavity and a self-regulating linear annular gap through which the air escapes. As the region of close proximity between the rotor and stator is only a linear one, accurate machining of surfaces is not necessary. The rotor may be spherical in which case in the operative position its horizontal diametral plane lies level with the rim of the stator cavity. Buckets (45), Fig.4 (not shown) or fins (46), Fig. 5 (not shown) may be cut out of its lower hemisphere to increase torque. The rotor may be cylindrical, Fig.6, in which case in the operative position the tops 48 of vanes cut out of its lower half lie level with the stator rim. As shown in Fig. 2, the rotor is fast with an elongate glass vial 12 containing the sample 11. Air also passes through ducts 34 and between aluminium or stainless steel bearings 32, 33 and the vial 12. In the operative position, sample 11 is raised to be within coil 17. The air outlet from the lower end of the probe may be temporarily interrupted to facilitate removal of the vial and rotor, the increased air pressure raising the vial above the top of the outer sleeve 26.
Patent GB-879556-A (GB)
Title: Improvements in or relating to mincing machines
IPC: B02C18/06
Filed: 1959-12-04
Abstract: 879,556. Mincers. SCHNELL, C., [trading as SCHNELL MASCHINENFABRIK, CARL]. Dec. 4, 1959 [Dec. 20, 1958], No. 41276/59. Class 28 (2).  In a meat-mincing machine the mincing blades 3 rotate above the superposed perforated plates 4 and 5 of which one has spiral depressions 16 to conduct away any meat between them. The lower plate 5 is fixedly secured in the body by a shear pin while the upper plate 4 may be adjusted relative thereto by a lever 13. The upper plate 4 has coarse mesh holes 11 and 12 for coarse mincing and a multiplicity of fine mesh holes 10 for fine mincing which may be above the large holes 14 in 5 or may. be rotated to lie above the webs between the holes 14.
Patent GB-924969-A (GB)
Title: Improvements in or relating to transporting means for newspapers, magazines and the like
IPC: B62B1/14
Filed: 1960-12-01
Abstract: 924,969. Hand trucks. M. P. MILLS. Feb. 26, 1962 [Dec. 1, 1960], No. 41387/60. Class 108(1). A hand truck for carrying a bag 18 has a pair of brackets 12 secured to the frame member 2 and a longitudinally adjustable hook 15 so that whilst the weight of the bag 18 is carried by the toe plate 9 the strap 19 retains it in position. A second pair of brackets 13 and hook 17 will retain a further bag on the truck.