baber/WOPTO huggingface dataset:
Patent GB-978191-A (GB)
Title: Radar apparatus
Inventor: SHERRY ROBERT S
IPC: G01S1/02
Filed: 1961-01-13
Abstract: 978,191. Aerials; pulse radar. SPERRY RAND CORPORATION. Jan. 13, 1961, No. 1502/61. Headings H4A and H4D. In airborne radar apparatus a first aerial remits and receives energy according to a radiation diagram A in the direction of a target 12, a second aerial receives energy according to a radiation diagram B, a hybrid junction 24 produces voltages according to the vector sum and the vector difference of the received energies, and a phase comparator 38, coupled to receive the sum and difference voltages, produces an output signal of one polarity 41, Fig. 3, when the combined energy is predominantly that collected by the first aerial and which is of opposite polarity 42, Fig. 3, when the combined energy is predominantly that collected by the second aerial. The deleterious effect of the sidelobes of the first aerial is thereby mitigated. In the embodiment horn 25 either has more gain in its major lobe than there is in side lobe 15 of the first aerial or is provided with an amplifier to effect this. Considering reflected energy from the earth: if a is the received energy by side lobe 15 and b is that of horn 25 (amplified, if necessary), a voltage corresponding to the vector sum a + b is fed via a phase shifter 28, compensating for any differential phase shift in the symmetrical arms of junction 24, to mixer 29, and a voltage corresponding to the vector difference #b - #a is fed to mixer 30. The mixers are energized also by a local oscillator 31 the frequency of the output of which is automatically controlled so as to maintain a constant intermediate-frequency. The output of phase comparator 38 is of negative polarity for earth echoes and of positive polarity for target echoes, Fig. 3. Diode rectifier 43 passes only the latter to ranging circuits 44 of the kind described in " Electronic Time Measurements " (McGraw Hill Book Co., 1949) on pages 342 to 348, which automatically and continuously measure the range to the nearest positive echo pulse, or to ranging circuits as described in Specification 588,187.
Patent GB-1165538-A (GB)
Title: Improvements in and relating to Homopolar Electric Machines
Inventor: APPLETON ANTHONY DEREK
IPC: H02K31/02
Filed: 1966-01-12
Abstract: 1,165,538. Homopolar machines. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 9 Jan., 1967 [12 Jan., 1966], No. 1530/66. Heading H2A. A homopolar torque-converter employs a common working flux for both input and output rotors which comprise a small high-speed rotor 1 driven by an external motor, and a larger, low-speed rotor 2 providing power at outuut shaft 2a. Current generated by rotor 1 traverses both rotors in series, and a common field passing axially through core parts 6a, 6b, 6c and 6d is generated by coil 3 which may be superconducting. The working flux is controlled by an axially movable core part 7. The rotor discs are of non-magnetic, conducting material, e.g. copper. Current generated at brushes 4a, 4b on disc 1 is arranged to pass twice radially of disc 2 through discs 2b, 2c on either side of a support 2d, and back through fixed discs 11, 12. This is achieved by an arrangement of brushes 5a, 5c engaging slip-rings 16, 18 connected through to the opposite rotor disc by alternate links 15, 17. The brush-gear may be simplified by mounting one set on one of the rotors.
Patent GB-994302-A (GB)
Title: Improvements in the manufacture of cast surface mineral coated paper
Inventor: ROBINSON JAMES VANCE
IPC: D21H25/02
Filed: 1962-01-16
Abstract: 994,302. Coated paper. MEAD CORPORATION. Jan. 16, 1962, No. 1536/62. Heading B2E. In the formation of cast-coated paper, the coating is converted to a tough deformable gel by the application of a coagulating electrolyte with which is incorporated, with the object of imparting substantially complete separability from the casting surface, a water soluble non- ionic surface active agent. The surface active release agent may be a water soluble polymer of ethylene or propylene oxides or their simple ethers, esters of polyoxyethylene, polyethanolamine fatty acid condensates, polyoxyethylene thio-ethers, polyoxyethylene phenol ethers, substituted fatty amides, polyoxyethylene amides or water soluble reaction products of ethylene oxide, as with phenol, alcohol, a higher fatty acid, a hexitan ester of a fatty acid, an amide, amine or propylene oxide. Specific examples given of such agents are polyoxyethylene monoalkyl ether, polyoxyethylene ether of polyoxypropylene, polyalkylene glycol ether, polyethylene glycol, methoxypolyethylene glycol, polypropylene glycol, mono red oil-, mono rosin-, tall oil fatty-, oleic-, stearic-, or lauric acid ester of polyoxyethylene, polyoxyethylene sorbitan mono-oleate, polyethanolamine-C16-C18- fatty acid salt, fatty alkylol-amide, fatty acid alkanol-amide, polyethylene glycol tert. dodecyl thio-ether, C2-C4-alkyl phenol polyethylene ether, iso-octylphenoxypolyoxyethylene-ethanol, fatty alkylol amido alcohol, C16-C18-fatty acid amide ester, C16-C18-alkyl ether polyethylene glycol amide. The preferred coagulating electrolyte for use in association with the above release agents is calcium formate (in 5% solution) but the following may also be used: calcium acetate. zinc acetate, calcium lactate, aluminium sulphate. The coating compositions may include clay, calcium carbonate, casein, caustic soda, sodium pyrophosphate, calcium stearate, butadiene-styrene copolymer latex and diisobutylphenoxyethoxyethyldimethylbenzyl - ammonium chloride monohydrate or the following alternative constituents: soya protein, "Alpha" (Registered Trade Mark) protein, dicyandiamide, ammonia, sulphonated tallow, Lignason. When using the apparatus described, the coating composition is discharged from nozzles 23 into the nip between rolls 15, 24 and applied to the paper 11 immediately before the latter passes tightly around a roll 16 that dips into a bath 17 which contains a solution of coagulant and release agent. The coated paper is then transferred to casting roll 20 that is heated to between 170 ‹F. and 230 ‹F. and the paper remains in contact with this roll until the coating releases after drying.
Patent GB-790227-A (GB)
Title: Earth digging and loading apparatus
Inventor: HOWARD JOHN ARTHUR
IPC: E02F3/42
Filed: 1955-01-19
Abstract: 790,227. Shovelling machines. ROTARY HOES, Ltd. Jan. 18, 1956 [Jan. 19, 1955], No. 1592/55. Class 68(1) In a shovelling assembly for attachment to a tractor there is provided between an hydraulically actuated ram 44 and a shovel-carrying boom 31 pivotally mounted at 30 on the frame of the assembly a linkage 41 that results in the shovel-raising system having a larger mechanical advantage during the initial upward movement of the shovel than at the latter part of said movement. The change of mechanical advantage permits of the latter part of the upward movement of the boom being at an increased rate to the initial movement, the speed of the piston of the ram remaining constant. The linkage 41 comprises a bell-crank arm 41, 46 pivotally mounted at 40 on the boom 31 and engaging a stop 47 on the boom during the initial upward movement of the boom.
Patent GB-574375-A (GB)
Title: Method of and apparatus for trapping and extracting solid particles from the exhaustof drying machines
IPC: F26B25/00
Filed: 1944-01-28
Abstract: 574,375. Centrifugal separators. BROWN, I. R. Jan. 28, 1944, No. 1606. [Class 23] Solid particles are separated from the exhaust 2 of a drying machine 1 when the exhaust passes into an expansion chamber 4, being deflected downwardly by a curved plate 5. A sliding door 7 allows access to the chamber for removal of the particles. A slidable screen 10 filters the gas passing to an outlet duct 9.
Patent GB-737916-A (GB)
Title: Improvements in or relating to the electric treatment of emulsions of the oil-continuous type
Inventor: STENZEL RICHARD W
IPC: C10G33/02
Filed: 1952-01-21
Abstract: <PICT:0737916/III/1> Emulsions, having a continuous phase of oil of animal, vegetable or mineral origin and only a minor percentage of dispersed-phase material, are broken electrically by advancing smooth-flowing side-by-side streams of the emulsion through electrode-bounded uniform-field zones of side-by-side unidirectional high-voltage electric fields, the treated oil issuing from such zones joining into a single stream therebeyond.  The emulsions may be naturally-occurring or artificially made and may be aqueous emulsions of crude petroleum, of petroleum distillates such as gasoline, kerosene or diesel oil or of petroleum residua.  The aqueous or oil phases may contain dissolved materials.  In Fig. 5, emulsion is introduced into heat-insulated cylindrical vessel 50 as a radial spray by means of distributor 61.  The radial spray passes through space 54 between live electrode 55 and grounded electrode 56, these electrodes being made up of concentric metallic rings.  Thus, space 54 serves to break the emulsion partially so that the residual emulsion contains only a minor percentage (for example no more than 2 per cent) of dispersed-phase material.  The emulsion then passes between a grid of interspaced electrodes 66 consisting of a plurality of concentric cylinders 67 interleaved by a plurality of concentric cylinders 69, and thereafter between a similar grid of interspaced electrodes 75.  The treated oil is removed by means of collector 83 and pipe 85, while the coalesced water collects in the conical bottom of vessel 50 and is withdrawn continuously or intermittently through pipe 86.
Patent GB-1212081-A (GB)
Title: Precombustion chamber for a compression ignition internal combustion engine
Inventor: STARK FRANK HENRY
IPC: F02B19/14
Filed: 1968-01-11
Abstract: 1,212,081. I.C. engine combustion chambers. ROLLS-ROYCE Ltd. Jan.11, 1968, No.1680/68. Heading F1B. A pre-combustion chamber 15 comprises a body 18 having a centre body 25 mounted therein and defining a combustion space 33 therewith. The centre body 25 has a head 27 spaced by an annular gap 47 from the inner end of the body 18. The gap 47 communicates with the combustion space 33 through an annular passage 32 defined between the bodies 18 and 25. A supporting structure 14 for the pre-combustion chamber 15 and a tubular injector carrier 38 defines a cooling water chamber 52 therewith. The end surface 55 of the injector carrier which bounds the combustion space 33 is formed with an annular recess 56 to promote toroidal vortex flow within the combustion space. The centre body 25 is supported within the body 18 by a flanged port 35 connected by four spaced apart arms 34 to the centre body portion 26. The lower part of the body 18 is insulated from the structure 14 by an annular gap 23 and a replaceable annular liner 24 may be provided therebetween.
Patent GB-324792-A (GB)
Title: Improvements relating to clutch devices
IPC: F16D7/00
Filed: 1929-01-17
Abstract: 324,792. Humfrey-Sandberg Co., Ltd., and Humfrey, J. C. W. Jan. 17, 1929. Clutches, slipping and free-wheel.-In order to avoid failure in the engagement and disengagement of skew-roller clutches due to the action of torque on the axially-movable conoid, the driving and driven members are made axially immovable, a floating member in contact with the rollers being allowed axial freedom to effect jamming and release. The invention is applicable to the unidirectional ratchet clutches described in Specification 239,894, to the slipping clutches described in Specification 248,183, and to the modified forms described in Specification 295,481, wherein the rollers are shaped to have line contact with one conical or cylindrical element. Oppositely-tapered conoids 1, 2, Fig. 3, are rigid with driving and driven shafts 9, 10 and coact with concentric rows of skewed rollers 3, 4, which contact with the annular floating member 5. The member 5 is pressed into engagement by springs 6, the limiting torque being adjusted by a flanged screwed ring 20, contacting with an abutment-plate 17 and locked by a nut 23. Fig. 4 shows a ratchet clutch without torque-limitation, in which the driving-member 8 has connected to it by splines 25, 26 a cage 24, and the single row of rollers 3, confined between projections 28 thereon, coacts with the driven inner conoid 2 and a spring- pressed floating outer conoid 30. The cage 24 is axially located between a shoulder 35 on the conoid 2 and a ring 34 on the shaft 10. In a modification, Fig. 5 (not shown), the outer conoid is fixed to the driven shaft, the cage is splined directly on the driving-shaft, and the outer conoid floats. A single spring, coaxial with the shafts, presses on the inner conoid through a ball thrust bearing. The rollers may be placed singly between the cage-projections 28, which have concave sides to fit them, or may be disposed in groups between flat-sided projections 28, as shown in Fig. 10. A reversible form, embodying two clutches of the type described with reference to Fig. 4, is shown in Fig. 12. The cage 24, splined to the driving- member 8, runs between shoulders on the rigid inner conoids 2b, 2<c>, two sets of similarly inclined rollers 3, 3<a>, or a single set of long rollers, lying between the driven conoids and two floating conoids 30<b>, 30<c>, pressed apart by springs 6. Slip is determined by slidable collars 47, 48, which act on the conoids 30<b>, 30<c> respectively by balls 51 and pins 52 and balls 54. The second Provisional Specification describes the cage as being similar to that described in Specification 239,894.
Patent GB-838521-A (GB)
Title: Improvements in or relating to inverse time/current electric circuit arrangements
Inventor: BOWYER ARTHUR WILLIAM
IPC: H02H3/093
Filed: 1957-01-16
Abstract: 838,521. Protective cut-out arrangements. GENERAL ELECTRIC CO. Ltd. Jan. 14, 1958 [Jan. 16, 1957], No. 1714/57. Class 38 (5). [Also in Group XXXV] An inverse time overcurrent protective circuit comprises a potential divider having a magnetoresistive element 1, 3, 4 whose resistance is proportional to the square of the current I 1  passing through the coil 3, and a swamping resistor 2 having a relatively large value to element 1 and producing sensibly constant current through it. The voltage across a capacitor 6 which is connected in series with a resistor 5 across element 1 will be varied in proportion to I 1  squared, this voltage being applied to a sensitive relay (not shown) which may be of the transistor triggered type.
Patent GB-1406051-A (GB)
Title: Vinyl pyridine copolymers
IPC: C08F236/10
Filed: 1972-01-13
Abstract: 1406051 Butadiene/styrene/vinylpyridine copolymer DUNLOP Ltd 6 Dec 1972 [13 Jan 1972] 1765/72 Heading C3P In a process for the production of a butadiene styrene/vinyl pyridine copolymer latex in the presence of a molecular weight regulator, a soap solution, an auxiliary dispersing agent and a free-radical initiator at a temperature of 50- 70‹ C., at least 50% of each monomer, 50-90% of the molecular weight regulator and part of the soap solution are added gradually to an initial reaction mixture of the other ingredients. The molecular weight regulator may be n- or t-dodecyl mercaptan or mixed C 12-16  t-mercaptans. The reaction is preferably short-stopped at a solids content of 20-50%. The latex may be stabilized, e.g. with potassium oleate and urea, and combined with resorcinol and formaldehyde to form a latex dip for bonding tyre cords to rubber.
Patent GB-772663-A (GB)
Title: Process for stabilising halogen-containing polymers
IPC: C08K5/57
Filed: 1954-01-21
Abstract: Halogen-containing polymers are stabilized towards heat and/or light by incorporating a small proportion, e.g. 0.1 to 3 per cent, of a hexaorgano-distannoxane of formula <FORM:0772663/IV(a)/1> in which R may be aliphatic, alicyclic, aromatic or heterocyclic, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertiary-butyl, amyl, isoamyl, tertiary-amyl, hexyl, heptyl, octyl, dodecyl, 2-ethyl-butyl, 2-ethyl-hexyl, phenyl, tolyl, xylyl, naphthyl, cyclohexyl and thienyl.  The halogen-containing polymer may be polyvinyl chloride, a copolymer of vinyl chloride with vinyl acetate, acrylic or methacrylic acid, an acrylate or methacrylate, acrylonitrile, an unsaturated dicarboxylic acid or an anhydride or ester thereof, vinylidene chloride or a diene, an after-chlorinated polymer or copolymer of vinyl chloride, or a polymer or copolymer of a halogen-containing organo-silicon compound.  The composition may also contain a plasticizer, such as dioctyl phthalate.ALSO:Hexabutyldistannoxane of formula <FORM:0772663/IV(b)/1> is prepared by a process in which 50 grams of tributyl-tin chloride are dissolved in alcohol and boiled with 150 c.c. of 20 per cent caustic soda solution until all the alcohol has been driven off; the turbid oil so obtained is separated off and heated at 200-220 DEG  C. to bring about ether formation, water being distilled off.  Hexabutyl-distannoxane is obtained in the form of a yellowish oil by distillation at 200 DEG  C. under 4 mm. pressure of mercury.ALSO:Chlorinated paraffin wax is stabilized towards heat and/or light by incorporating a small proportion, e.g. 0.1 to 3 per cent, of a hexaorgano-distannoxane of formula: <FORM:0772663/III/1> in which R may be aliphatic, alicyclic, aromatic or heterocyclic, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertiary-butyl, amyl, isoamyl, tertiary-amyl, hexyl, heptyl, octyl, diodecyl, 2 - ethyl - butyl, 2 - ethyl - hexyl, phenyl, tolyl, xylyl, naphthyl, cyclohexyl and thienyl, butyl, isobutyl or tertiary-butyl being preferred.ALSO:Chlorinated rubber is stabilized towards heat and/or light by incorporating a small proportion, e.g. 0,1 to 3 per cent of a hexaorgano-distannoxane of formula:  <FORM:0772663/V/1> in which R may be aliphatic, alicyclic, aromatic or heterocyclic, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertiary-butyl, amyl, isoamyl, tertiary-amyl, hexyl, heptyl, octyl, dodecyl, 2-ethyl-butyl, 2-ethyl-hexyl, phenyl, tolyl, xylyl, naphthyl, cyclohexyl and thienyl, butyl, isobutyl or tertiary-butyl being preferred.
Patent GB-413705-A (GB)
Title: Improvements in and relating to systems of speed control for electric motors
IPC: H02P25/12
Filed: 1933-01-20
Abstract: 413,705. Controlling motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and LIDDIARD, H. W. C., Dunchurch Road, Rugby. Jan. 20, 1933, No. 1946. [Class 35.] Speed-control mechanism for an A.C. commutator motor 2 comprises a shaft 9 adapted to be rotated in either direction, a spindle 7 geared through chains 8 or other gearing to the brush gear 3, 4 of the motor, and two parallel transmission gears 10, 11 of different gear ratio between the shaft and the spindle, the gear 11 for rotating the spindle at the higher speed including a pawl and ratchet coupling, while the gear 10 for rotating the spindle at the lower speed includes a reversely-arranged pawl and ratchet coupling and a slipping clutch 14 to prevent locking of the mechanism. The shaft 9 may be driven by a pilot motor 1 through reduction gearing 6. The motor 2 drives a lift or similar mechanism, the arrangement being such that the retardation of the motor is effected in less time than its acceleration.
Patent GB-325081-A (GB)
Title: Improved method of and means for producing bricks of loam, clay and like material provided with excavations
IPC: B28B5/08
Filed: 1929-01-21
Abstract: 325,081. Koidl, T., and G÷rlich, F. Jan. 21, 1929. Cutting - machines. - Cavities are made in bricks by cutting-means which have a combined axial and transverse movement and remove part of the material with a scooping action without altering the structure of the portion left. Thus a moulded brick 29 is transferred by apparatus 28 from the moulding-machine to tipping-cradles 27 mounted over slots 23 in an intermittentlymoving rotary table. A cam track 31 turns the cradles over so that the bricks lie flat on the table. During this time cutting-wires 61 mounted on forked arms 62 are raised by cam mechanism 36 and traversed by crank mechanism 47, 51. Driving and controlling means. The continuously-running shaft 7 is connected to the tabledriving shaft 14 by means of the clutch 15 which is operated by the cord 76 controlled by the lever 75 pivoted at 74. One arm of the lever 75 operates to withdraw a spring pawl 80 from the table into a position where it is latched by the spring 82, whenever a pin 69 on a continuouslyrunning shaft engages the lever 70. Withdrawal of the pawl causes engagement of the clutch and the table rotates until the next projection 83 unlatches the pawl. The cutting-wires are driven through bevel gear 39, 40, sleeve 41, spur gear 38 and bevel gear 46 driving the geared crank shafts 47, 51. The brick is held by side arms 85 which approach and recede from one another when the cam-slotted member 89 is rotated by the engagement of the arms 95 with fixed pins 90, 91. A discharge door 65 for the cut material is linked to the tipping-cradles 27.
Patent GB-248147-A (GB)
Title: Improvements relating to fabrics and sheet materials and the manufacture thereof
IPC: D06M17/02
Filed: 1925-01-23
Abstract: 248,147. Dreyfus, C. Jan. 23, 1925. Artificial silk, fabrics containing. - A woven, knitted, or other fabric is composed wholly or in part of filaments or fibres of a thermoplastic cellulose derivative, such as cellulose acetate, ethyl-, methyl-, or benzylcellulose, or nitrocellulose, or of mixtures thereof. The fabric may be composed partly of yarns of silk, cotton, linen, wool, or artificial filaments or fibres of the cellulose type, and partly of yarns of the thermoplastic cellulose derivative.
Patent GB-886722-A (GB)
Title: Photographic colour developers and processes of colour development
IPC: G03C7/413
Filed: 1958-01-22
Abstract: S - Carbethoxymethyl - 1 - phenyl - 3 - (1, 2, 4 - triazol-3-yl)-isothiourea is prepared by heating 3-amino-1,2,4-triazole with phenyl isothiocyanate in dry dioxane to give 1-phenyl-3-(3-triazolyl) thiourea, which is then refluxed with ethyl chloroacetate.  Specifications 507,841, 531,246, 531,312, 547,064, 562,205, 592,672, 599,919, 613,400, 616,822, 651,749, 653,284, 655,082, 658,826, 680,593, 682,355, 748,750, 814,823, 861,194, 871,801 and 886,723 are referred to.
Patent GB-865761-A (GB)
Title: Improvements in and relating to devices for discharging high pressure fluid for blasting purposes
Inventor: DOWIE DAVID LINCOLN
IPC: F42D1/00
Filed: 1957-01-21
Abstract: 865,761. Fluid-pressure blasting cartridges. AUSTLAND Ltd. Jan. 8, 1958 [Jan. 21, 1957], No. 2134/57. Class 9(1). A fluid-pressure blasting device as described in Specification 865,760 contains a column of liquid such as water between the reservoir 5 and the outlet ports 8. The liquid may be confined between rupturable partitions 6, 9 or may be pumped into the tube 1 after the device has been sealed in a borehole through a connection 10. The membrane 9 may be replaced by a rubber membrane placed over the parts 8, which are inclined rearwardly so that the fluid discharge tends to retain the device in the borehole. Some of the ports may be radial and may be spaced along a substantial length of the tube 1, the ports then being arranged along a line parallel to the axis, so that the discharge may be applied in a given angular direction. Pivoted claws, not shown, may be used to secure the device in the borehole.
Patent GB-1025455-A (GB)
Title: Improved mounting or fixing means
IPC: G09F7/18
Filed: 1963-01-17
Abstract: 1,025,455. Screws; covers for screws; nails. R. C. WATTS. Feb. 15, 1965 [Feb. 13, 1964], No. 6047/64. Addition to 914,137. Heading F2H. [Also in Division E2] The mounting or fixing means of the parent Specification is modified in that at least one of the members 1 or 2 is provided with a base 2c adapted for adhesive mounting to a corresponding one 7 of the two parts 6 and 7 to be secured together. As shown, in which the members 1, 2 are made of a synthetic plastics material, the member 1 is attached to the part 6 by a screw 5, the head of which may be moulded in the closed end 3.