baber/WOPTO huggingface dataset:
Patent GB-339070-A (GB)
Title: Improvements in or relating to continuous-feed cinematographic projection apparatus
IPC: G03B41/10
Filed: 1929-11-01
Abstract: 339,070. Pittaluga, G. Sept. 4, 1929, [Convention date]. Kinematograph apparatus. -In continuous feed projectors, the illuminating system and the optical compensating system each comprise a pair of rotating semicircular mirrors and a pair of oscillating reflectors. As shown, the semi-circular mirrors Q R for the illuminating system are carried by a disc 1 having an opening 5 and a gap T. The disc 1 is carried by a shaft 12 provided with cams or the equivalent which rock reflecting prisms 4, 5 through levers 8, 9. Similar members are provided in connection with the compensating system, and the two shafts 12, 13 are driven from a shaft 14 which also rotates a sprocket 3 drawing the film through a curved or straight gate 16. The light beam converges on to the mirror R, when the parts are in the position shown, and is reflected on to the prism 4 which is rocked, as the film is fed, so that the light patch moves with the film image. A lens between the prism 4 and the gate renders the beam convergent. Rotation of the disc 1 allows the beam to pass through the opening S on to the rocking prism 5 by which it is reflected on to the mirror Q and the film. The compensating system operates in a similar manner. Film centering may be effected by moving a roller 17 along an arc L L.
Patent GB-1389034-A (GB)
Title: Heat treatment for wrought zinc-aluminium alloys
IPC: C22F1/16
Filed: 1972-07-17
Abstract: 1389034 Heat-treating zinc alloys NORANDA MINES Ltd 17 July 1972 [21 July 1971] 33356/72 Heading C7A Wrought Zn-Al alloys which undergo a entectoid transformation are slowly cooled through that transformation from below the solidus or entectic temperature, and then, when the transformation is complete, are rapidly cooled. Preferably the alloy has previously been homogenized before commencing the slow cooling. The treatment is applied particularly to alloys containing Al 12-30% Cu 0-10% Mg 0-1% Bi 0-3% Zn balance  and may comprise homogenization in the α phase (e.g. 380C), furnace cooling at an average rate of less than 2C/min. to 250C, and then air cooling to room temperature.
Patent GB-1512128-A (GB)
Title: Motor vehicles
IPC: B60R13/08
Filed: 1976-08-11
Abstract: 1512128 Silencers; engine casings AUTOMOBILES M BERLIET 11 Aug 1976 [14 Aug 1975] 33388/76 Heading F1B [Also in Division B7] An arrangement for the sound insulation of vehicle engines, particularly bus engines, comprising an engine compartment 9 flanked by two side compartments 12, 13, the side compartment walls being internally clad with sound absorbing material but the engine compartment being internally free of such material and the side compartments acting as air entry and air exit chambers. The engine compartment is free of sound insulating material to avoid the absorption of inflammable liquids. Air is drawn into compartment 12 via opening 15 in the vehicle side 3 by a fan 18. Air passes over the radiator 17, through the engine compartment and out through an opening 21 or pipe (25), Fig. 1 (not shown), at the rear of compartment 13. The engine silencer may be situated in the compartment 13.
Patent GB-747586-A (GB)
Title: An arrangement for heating fine granular material
IPC: F27B7/20
Filed: 1953-12-02
Abstract: 747,586. Centrifugal separators. KLOCKNER-HUMBOLDT-DEUTZ AKT.-GES. Dec. 2, 1953 [Dec. 4, 1952], No. 33497/53. Class 23. [Also in Group XII] A centrifugal separator used in the final stage of a counterflow solids-waste gases system for preheating raw cement material and charging it into a rotary furnace, (see Group XII), comprises four cyclone separators arranged in tandem. Each separator comprises a cylindrical casing 37 engaging a hopper-shaped container 38 having a discharge duct 43 for deposited dust, and, disposed at the bottom of the casing and defining therewith a gap 40, a truncated core 39. The incoming gases enter a whirling head 41 from a common supply duct and a sleeve 42 conducts the cleaned gases into a whirling head 63 from which they are discharged into a common offtake 65.
Patent GB-1475574-A (GB)
Title: Vertical kiln control
IPC: C04B2/12
Filed: 1974-07-30
Abstract: 1475574 Controlling operation of shaft furnace ROUND ROCK LIME CO 30 July 1974 [30 July 1973] 33590/74 Heading F4B [Also in Division G3] In a shaft kiln, a heat input is supplied to the burning zone at a rate sufficient to treat a charge having a predetermined bulk density and a predetermined flow rate through the kiln, a quantity representative of the bulk density of the charge is measured and the rate of flow of material through the kiln is controlled to maintain a constant mass residence time. In a lime kiln supplied from a hopper 18 and having a heating zone between levels 20, 22, the pressure difference across the heating zone is measured to give an indication of the bulk density of the material. Pusher bars 61 between diverter plates 58 and retarder plates 60 are operated by hydraulic pistons 66, 68 at a rate determined by the pressure difference measured across the burning zone, so that denser material remains larger in the kiln than less dense material to give uniform heat treatment.
Patent GB-955859-A (GB)
Title: New catalyst systems and the polymerisation of olefins therewith
IPC: C08F210/06
Filed: 1961-09-19
Abstract: Vanadium tris (acetylacetonate) is made by dissolving V Cl3 in dilute H2SO4, adding acetylacetone, neutralizing the reaction product with aqueous sodium carbonate, and recovering the brown precipitated crystals of V tris (acetylacetonate). The crystals may be recrystallized from benzene and petroleum.ALSO:A polymerization catalyst system comprises the reaction product, made in the presence of carbon tetrachloride, or trichloromonofluoromethane as the sole diluent, of (a) aluminium triisobutyl, diisobutylaluminium chloride, isobutylaluminium dichloride, or the reaction product of 0.5 to 2.0 moles of aluminium chloride with 1.0 mole of aluminium triisobutyl, with (b) vanadium tris (acetylacetonate), the proportions of (a) and (b) being such that the molar-ratio of isobutyl radicals to vanadium atoms is at least 6:1, and the vanadium concentration in the system is 0.0001 to 0.1 molar. The catalyst systems are used to polymerize olefinically unsaturated monomers and in particular to homo- and copolymerize one or more alpha-olefines.  In the copolymerization reaction one or more alpha-olefins may also be copolymerized with another monomer such as a diene.  The alpha-olefin may be ethylene, propylene, 1-butene, 1-hexene, 1-decene, 4-methyl-1-pentene, 1-heptene, 4-methyl-1-hexene, 5-methyl-1-hexene, 4, 4-dimethyl-1-pentene, 6-methyl-1-heptene, 4-methyl-1-heptene, 5-methyl-1-heptene, 4, 4-dimethyl-1-hexene, and 5, 6, 6-trimethyl-1-heptene. Other monomers copolymerized may be vinyl chloride, vinyl acetate, vinyl ethyl ether, dicyclopentadiene, a 5-alkenyl-2-norbornene, a 5-methylene-2-norbornene, a 2-alkyl 2, 5-norbornadiene, and dienes of the formula: <FORM:0955859/C3/1> where R1 is an alkylene radical, R2 and R3 are hydrogen or an alkyl radical, and R4 is an alkyl radical, and R1 and R4 are so chosen that the diene contains 6 to 22 carbon atoms.  The Specification contains extensive lists of copolymers, and several examples of same.  The catalyst may be preformed or made in situ. The polymers may be recovered by conventional techniques.  The polymerization may be effected continuously.
Patent GB-631516-A (GB)
Title: Process for the manufacture of a pteridine derivative
IPC: C07D475/04
Filed: 1947-12-19
Abstract: A pteridine derivative (thought to be the formyl derivative of folic acid) is obtained by condensing 2-amino-6-hydroxy-8-pteridylaldehyde with p-amino-benzoyl-1-(+)-glutaminic acid in the presence of formic acid at a temperature of between 60 DEG  and 101 DEG  C.  The product may be isolated by precipitation by diluting with water or ether or by distilling off the formic acid.  The crude condensation product may be treated with magnesium oxide in aqueous suspension, adjusting the pH of the resulting solution to 7, filtering, acidifying the filtrate to a pH of 3 to 4 and filtering off the precipitate which may then be recrystallised from water.  The ammonium, alkali metal, alkaline-earth metal, nickel, silver, lead, zinc, copper and mercuric salts of the product are mentioned.
Patent GB-1504525-A (GB)
Title: Jointing or terminating plastics sheathed electric cable
IPC: H02G1/14
Filed: 1975-05-15
Abstract: 1504525 Cable jointing processes BICC Ltd 15 May 1975 [15 May 1974] 33631/77 Divided out of 1504523 Heading H2E The subject matter of this Specification is substantially the same as that described in parent Specification, but the claims are concerned with a kit of parts suitable for use in a method of making a connection between a plastics sheathed cable and a cable joint or termination enclosure.
Patent GB-1158310-A (GB)
Title: Benzylideneamino Compounds and the Conversion thereof into Benzdiaz[1,4]Epine Derivatives
IPC: C07D243/16
Filed: 1967-07-21
Abstract: 1,158,310. Benzylideneamino compounds and conversion to benzodiazepine derivatives. HOFFMANN-LA ROCHE & CO. A.G. 21 July, 1967 [26 July, 1966], No. 33727/67. Heading C2C. Compounds of the general formula (R<SP>1</SP> = optional halogen, NO 2 , CF 3 ; R<SP>2</SP> = optional halogen; R<SP>3</SP>'<SP>4</SP> = C 1-7  alkyl; X = Cl, Br, alkylsulphonyloxy, arylsulphonyloxy) are prepared from the corresponding compounds in which X = OH, and may be cyclized to compounds of the general formula optionally followed by salt formation.
Patent GB-870933-A (GB)
Title: Apparatus for making moulded pulp articles
IPC: D21J7/00
Filed: 1959-10-06
Abstract: 870,933. Moulding pulp. BRODRENE HARTMANN A.S. Oct. 6, 1959 [Oct. 7, 1958], No. 33895/59. Class 87(2). A machine for making articles, e.g. egg cartons, from pulp comprises means for pneumatically transferring pulp blanks from one rotating carrier to moulds located on a second rotating carrier, and from thence on to a travelling conveyer, characterised in that during the first transfer the moulds, guided by a stationary cam, are swung in a direction opposed to that of rotation of the second carrier. Pulp blanks are formed on suction moulds 12 which pass through a pulp vat 16 and are carried by carrier 10 which drives in the opposite direction a second carrier 18 carrying moulds 20 via gear wheels 42, 44. Each mould 20 is swingably suspended from carrier 18 and is connected by a system of links with a roller 36 which travels in the track 38 of a cam 40. The cam is so shaped that each suction mould 20 is swung anti-clockwise to cooperate with a mould 10, compress the blank slightly, and transfer it in a horizontal position on to a horizontal shelf 56 moving in the same direction at the same speed at about the twoo'clock position on wheels 52 of endless chains 50.
Patent GB-1510966-A (GB)
Title: Fuel control system for gas turbine engine
IPC: F02C9/32
Filed: 1974-08-01
Abstract: 1510966 Gas turbine engine fuel control LUCAS INDUSTRIES Ltd 25 June 1975 [1 Aug 1974] 33939/74 Heading F1G A gas turbine engine fuel control comprises a pump 12, Fig. 1, followed by a spill valve 15, a metering valve 13 and an overspeed control valve 19, the spill valve 15 returning fuel to the inlet side of the pump under the control of a pilot valve 18 responsive to the total pressure drop across the metering valve 13 and overspeed control valve 19, the overspeed control valve including an electrically operated pilot valve 52, Fig. 3, responsive to overspeeding of the L.P. shaft of the engine (and also to excessive temperature of the H.P. turbine exhaust gases) to vary a servo pressure acting in chamber 50 on a spool valve 46 so as to decrease the fuel flow to the engine, and a manually-operable selector valve 19 a having a control element 70 which is movable from the position shown to a shut-down position in which it vents the chamber 50 to a low pressure to close the spool valve 46, connects the outlet 22 of the control valve 19 to a low pressure and vents the pilot valve 18 to a low pressure to cause it to increase the spill flow of the spill valve 15. In addition, the selector valve 19 a connects the supply lines 76, 73 of the main and pilot burners to a low pressure. A probe 81 provides an electrical signal when the spool valve 46 is at or near its fully closed position. The metering valve 13 is similar to that described in Specification 1491212.
Patent GB-920181-A (GB)
Title: Improvements in or relating to apparatus for use in plucking feathers from fowls or the like
IPC: A22C21/02
Filed: 1960-10-04
Abstract: 920,181. Feather pluckers. W. PEARSON. Sept. 15, 1961 [Oct. 4, 1960], No. 33991/60. Class 28 (2). A feather plucking finger 1 of resilient material (rubber, possibly synthetic), for attachment to a rotary drum, not shown, is of circular cross-section and is formed with longitudinal grooves or ridges 6. The longitidunal grooves 6 may be crossed by spiral grooves or ridges (Fig. 3, not shown). The finger 1 may be hollow (Fig. 2, not shown), and is preferably formed with flanges 2, 3 separated by a groove 4 to enable the finger to be mounted on the rotary drum.
Patent GB-447665-A (GB)
Title: Improvements in or relating to piezo-electric crystal arrangements
IPC: G04F5/06
Filed: 1935-12-10
Abstract: 447,665. Mounting piezo - electric crystals. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 10, 1935, Nos. 34220 and 34221. Convention dates, Dec. 10, 1934. [Class 40 (v)] A crystal oscillator is drilled or recessed at nodal points to receive carrier-members or terminals which are preferably cemented-in by a metal amalgam, foil electrodes being provided on opposite sides of the crystal. Alternatively, the carrier members are constituted by projections formed integrally with the oscillating crystal-mass and at nodal points. In Fig. 1 a circular crystal 1 is recessed at points 2, 2 and metal rods 3, 3 are cemented in to form holders. The electrodes 5, 5 are electrically connected to the terminals 3, 3 by cross-bores 4, 4 filled with conducting material. In Fig. 3 two stemshaped projections S1, S2 are cut integrally with the oscillator 1 from the mother-crystal. The crystal and one or both of the holder or terminal projections may be coated with metal electrodes 5 as shown in Figs. 9 and 10. The projections may take the form of a rim separated from the mother-crystal by a recessed bridgepiece, which may be cut away over parts of the periphery.
Patent GB-988370-A (GB)
Title: Molding thermoplastic fabrics
IPC: D06M23/14
Filed: 1961-09-25
Abstract: 988,370. Moulding hollow articles. MONSANTO CO. Sept. 25, 1961 [Oct. 17, 1960; Dec. 19, 1960], No. 34307/61. Heading B5A. Thermoplastics fabrics are moulded by heating the material to its softening range, stretching the fabric over a male or female mould and simultaneously bringing a thin flexible and extensible membrane of vulcanized rubber or silicone rubber down upon the fabric by air or fluid pressure or by vacuum attraction so that the fabric is forced into contact with the mould and assumes the surface configuration thereof upon cooling. The process may be plug assisted and a cutting instrument to the outline of the mould removes superfluous material. The fabric may comprise thermoplastics fibres alone, non-thermoplastics fibres impregnated with thermoplastics resins or upwards of 5% thermoplastics fibre blended with naturally occurring fibres such as cotton, linen &c. The fabric may be composed entirely or thermoplastics fibres containing 80% of acrylonitrile and 2 to 10% of an alkenyl substituted N- heterocyclic monomer, or 80% cotton with 20% of said acrylonitrile fibres. Alternatively, fibres of polyethylene terephthalate, polyhexamethylene adipamide or polyethylene may be employed. A cotton fabric may also be used wherein the fibres are coated with acrylonitrile. Blends, e.g. of acrylics and polyesters, may also be used and the process carried out as a batch or continuous process to produce toy teddy bears, horses, elephants, cars and hats, shoe tops, stool top covers, brassieres, woven furniture pieces, swimming suits and curved automobile upholstery.
Patent GB-524440-A (GB)
Title: Improvements in or relating to flexible couplings for transmitting rotary motion
IPC: F16D3/76
Filed: 1938-11-25
Abstract: 524,440. Resilient couplings. SILENTBLOC,. Ltd., and TRIER, V. A. Nov. 25, 1938, No. 34311. [Class 80 (ii)] Circumferentially spaced members C, D, Fig. 1, of which the members C are connected to a member F, and the members D to a member G are connected to annuli A, B by rubber E bonded to the members C, D and to the annuli. The members C, D and the opposed surfaces of the annuli may be part spherical. In Fig. 4, driving and driven members J, K are rubber bonded to the walls of a trough H. In Fig. 6 the driving and driven members M are part spherical and embedded in rubber bonded to a part spherical annulus L and a ball M<4>.
Patent GB-521813-A (GB)
Title: Improvements relating to electron discharge devices
IPC: H01J1/18
Filed: 1938-11-25
Abstract: 521,813. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and BLACK, T. C. Nov. 25, 1938, No. 34353. [Class 39 (i)] The filamentary cathode of an electron discharge device is kept in tension by means of a cantilever spring attached to a metal arm extending from a point on the electrode spacing insulator adjacent to the free end of the cantilever spring. In the form shown, the filament is carried on a hook K secured to a cantilever plate spring P. This spring is connected to a bent metal arm M which is itself connected to a disc Q on a bush or rivet L fixed in a central aperture in the insulator F. The cylindrical anode A is constructed in two channel sections each with flanges B and grooves D at the edges to take rods E. The insulator F of lavite or similar material rests on the ends of the flanges B and carries collars G which may be welded to the rods E. Four metal struts C have a V-section and are flattened where they are welded to the flanges B. The struts diverge below the anode and are secured to a metal band clamped round the stem in the usual manner.
Patent GB-1438684-A (GB)
Title: Fluid flow rate control system
IPC: G01F1/68
Filed: 1973-07-19
Abstract: 1438684 Automatic control of fluid-flow GARRETT CORP 19 July 1973 [21 July 1972] 34372/73 Heading G3R The flow of a fluid (air) in a duct 11 is kept constant by a system in which the flow is regulated in response to a signal derived from the temperature attained by a heating element exposed to the fluid-flow and compensated for the temperature of the fluid, which is separately measured. As shown, a P.T.C. resistor 80 is supplied from a constant, Zener regulated, voltage source 15, the resultant current, which depends upon the temperature of 80 and hence upon the fluid-flow and is temperature, being measured at 17. The output of 17 is compared at 19 with a reference value from a signal generator 13 as a function of the desired fluid-flow w and the fluid temperature measured by a thermistor 40. This may be placed upstream of 80 rather than where shown. Any difference causes a transistor circuit 21 to reposition an electromagnetic flow control valve 12. In one alternative embodiment Fig. 3, (not shown) the desired value for flow is used to adjust the voltage supplied to the PTC resistor. The circuit for this embodiment is described in detail; the thermistor is arranged in a bridge network and the current through 80 is limited by a Zener circuit to a value slightly above that appropriate to the fully open position of the valve 12. In a second alternative embodiment Figs. 4, 5 (not shown) the PTC resistor is replaced by a unit comprising a zero temperature coefficient heater, which is supplied with constant current, and a temperature measuring thermistor, whose output is compared in a bridge network with that of the fluid temperature measuring thermistor. In this case any difference controls the fluid valve via an integrating amplifier. The heater current is dependent upon the required value for fluidflow and also on the Zener limited output of a "sensor of an external condition" (not specified), and is itself Zener limited.
Patent GB-1348793-A (GB)
Title: Method of electroless deposition of metals with improved sensitizer
IPC: C23C18/28
Filed: 1971-07-22
Abstract: 1348793 Coating non-metallic surfaces R C A CORPORATION 22 July 1971 [31 July 1970] 34380/71 Heading C7F Plastics are plated electrolessly with e.g. Ni, Co, Cu, Au, Pt, Pd or combinations-thereof by a process comprising prior treatment with a sensitizing solution containing both Sn<SP>2+</SP> ions and Sn<SP>4+</SP> ions in a ratio from 1:1 to 1000:1, the solution having a pH of 1À5 or lower. The substrates are subsequently treated with an activating solution comprising PdCl 2  prior to plating.
Patent GB-793271-A (GB)
Title: Textile winding machine with a metering mechanism for the yarn
IPC: B65H61/00
Filed: 1955-12-01
Abstract: 793,271. Measuring continuous lengths. BARMER MASCHINENFABRIK AKT.-GES. Dec. 1, 1955 [Dec. 1, 1954], No. 34462/55. Class 42 (2). [Also in Group IX] A yarn metering mechanism in a textile winding machine consists of a driven roller 3 around which the yarn passes and which is connected to a counter 4. The roller is preferably driven through magnets 11 let into a flange 13 formed on a rotating shaft 12. Specification 770,710, [Group IX], is referred to.
Patent GB-1273448-A (GB)
Title: Method and apparatus for counting filaments in a yarn
Inventor: BRISCOE JOSIAH ALFRED
IPC: G01N33/36
Filed: 1969-07-09
Abstract: 1,273,448. Counting filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 30 June, 1970 [9 July, 1969], No. 34582/69. Heading D1F. A method of counting filaments in a substantially parallel and twist free bundle, comprises spreading the bundle by gripping it between two smooth surfaces comprising a rod or a blade 3 capable of contact along a line with the other surface 4, and counting the filaments spread out in a sheet-like array so formed. The other surface 4 is preferably in the form of a plate which is transparent. The rod or blade 3 is preferably glass and acts as a cylindrical lens. An image of the spread filaments is produced by a light source 1 and lenses 2, 6, and the image is projected by means of a tiltable mirror 7 on to a screen 11 and the filaments in the image are counted by photo-electric means 12. The movement of the lever 8 to tilt the mirror 7 to project the image on the screen 11 sets the counter 15 to zero. The mirror gradually reverts to its original position by means of a spring 10 and liquid dash-pot 9.
Patent GB-467418-A (GB)
Title: Improvements in interlocking devices for switches and cross-over switches
IPC: B61L5/10
Filed: 1935-12-13
Abstract: 467,418. Railway interlocking apparatus. WILLIAMS, Ltd., H., and WILLIAMS, D. D. Dec. 13, 1935, No. 34589. [Class 105] To ensure alignment of the signal. wire slides f with the slides g, h attached to the points tongues, the housing d for such slides is movably mounted on a platform a and is moved to a definite location by the shooting home of the points locking plunger. For instance a cam bend on the plunger moves a slide i having a side lug n thereon to force the housing d back against the action of a spring p. The housing slides on rollers and is retained on the platform a by bars b overlying the flanges e on the housing.' .