baber/WOPTO huggingface dataset:
Patent GB-931277-A (GB)
Title: Improvements in and relating to television picture display devices
Inventor: JESTY LESLIE CONNOCK
IPC: H04N3/30
Filed: 1959-04-06
Abstract: 931,277. Television. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. April 6, 1960 [April 6, 1959], No. 11604/59. Class 40 (3). A television picture is reproduced in a dotinterlaced pattern comprised of elementary areas 12 and 13 produced during the scanning of odd and even fields 10 and 11 respectively. The patterns may be produced by pulse control of the intensity of the scanning beam of the picture tube. Alternatively, the pattern is produced by deflecting the scanning beam in a direction transverse to that of line scanning (spot-wobble), one or more harmonies of the wobble frequency being added to the fundamental (sinusoidal) to increase the time spent by the spot in the neighbourhood of the areas 12, 13 or, the scanning velocity of the beam may be varied by the addition of a sawtooth waveform or of a sinusoidal waveform with harmonics as indicated above. With any of these arrangements the necessary 180 degrees phase shift of the wobble, scanning velocity control or brightness pulsing waveforms during alternate field scans may be automatically produced by making the (fundamental) frequencies of such waveforms equal to an odd multiple of half the field scanning frequency. The pattern may be produced by an electroluminescent panel the elementary areas of which correspond to the areas 12 and 13. Specifications 850,024 and 864,233 are referred to.
Patent GB-773770-A (GB)
Title: Improvements relating to endless belt conveyors
Inventor: THOMSON JAMES
IPC: B65G23/44
Filed: 1954-07-14
Abstract: 773,770. Endless-belt conveyers. MAVOR & COULSON, Ltd. July 14, 1954, No. 11612/56. Divided out of 770,993. Class 78 (1). An endless belt conveyer having a driving drum 55 in the return run of the belt 40 is provided with tensioning loops 40a and 40b extending from the driving drum in the ingoing and outgoing stretches of the belt, the loops being formed by pulleys 41, 42 mounted in respective carriages 43, 44 independently slidable longitudinally on rails (not shown) between the driving gear and a motion-multiplying gear consisting of differential pulleys 59, 60. Each carriage has side-cable pulleys 49, 50, respectively for pairs of side cables 51 and 52, the cables 51 being passed around pulleys 49 and having one end anchored and the other connected to the smaller pulley 59 of the motionmultiplying gear, and cables 52 passing around pulleys 50 and having one end connected to the larger pulley 60 of the motion-multiplying gear and the other end connected to a manual take-up winch 62 for enabling varying amounts of belt to be stored for collapsing and extending the conveyer. The pulley 42 is mounted between the ends of arms 73 depending from carriage 43 so that the arms take up a position at an angle depending upon the tension T2 in loop 40b, this being indicated by a pointer attached to one of the arms. The tension T1 in loop 40a bears a fixed relation to tension T2 by the ratio of the diameters of pulley 60 to pulley 59. The winch 62 has drums 63 for the cables 52, each drum being separately driven by worm gearing 66, the input shafts to the worm gears being connected together by a sprocket chain 70 through a clutch 72 arranged so that one drum can be moved independently of the other to equalize the tensions in the cables. The conveyer may be arranged on an incline and the drum 55 driven by a regenerative electric motor adapted to act as a brake when the load is travelling downbill.
Patent GB-390958-A (GB)
Title: Improvements in and relating to gas burners
IPC: F23D14/00
Filed: 1932-04-22
Abstract: 390,958. Gas burners. SOC. ANON. DES FOURS SPECIAUX, 27, Rue LÞopold, Charleroi, Belgium. April 22, 1932, No. 11671. Convention date, Aug. 6, 1931. [Class 75 (i).] Air is supplied as by a fan through a tangential inlet 6 into a cylindrical chamber 2 surrounding the gas nozzle 13 and sucks gas from the latter into a convergent truncated conical chamber 3. The nozzle 13 is controlled by a needle valve 14 and spreads the jet in the form of a divergent cone. The air inlet is controlled by a hit-and-miss regulator 12 operated by worm gearing 15, 16, the ports 7, 10 being formed with bevelled side edges. The chamber 3 may be connected by a divergent truncated conical chamber 4 to a straight or curved tube 5 at the end of which the mixture burns. The Specification as open to inspection under Sect. 91 comprises also a divergent truncated conical chamber 8 adapted to be fitted to the end of the tube 5 and provided with a tangential inlet 11 for secondary air, which passes through a perforated refractory cone 9 into the gaseous mixture. This subject-matter does not appear in the Specification as accepted.
Patent GB-1056997-A (GB)
Title: Improvements in power-actuated clamping means for lathes and the like
IPC: B23B31/20
Filed: 1964-02-28
Abstract: 1,056,997. Lathes. PAUL FORKARDT K.G. March 19, 1964 [March 19, 1963]. No. 11759/64. Headings B3B and B3T. In a lathe, a spindle 1 carries an outer clamping chuck 3 and contains a sliding member 5 carrying a clamping means 6 which can be clamped by the chuck-jaws. In operation, a workpiece 4 is gripped by the jaws 3 while it is machined. The clamping device 6 is then advanced by a piston 8 and is expanded by a conical wedge 12a operated by a piston 11 to grip the work internally. The chuck 3 is released and the clamp 6 with the work is then advanced clear of the chuck 3 by a sliding cylinder 9 and the sliding member 5 is clamped and steadied by the chuck-jaw surfaces 3a. Further surfaces of the work are then machined. The sequence of operations may be reversed.
Patent GB-363267-A (GB)
Title: Improvements in processes for the manufacture of solid rods and tubes made of glass or other analogous material
IPC: C03B17/04
Filed: 1931-04-21
Abstract: 363,267. Making glass tubes and rods. COMPAGNIE DES LAMPES, 29, Rue de Lisbonne, Paris. April 21, 1931, No. 11796. Convention date, May 22, 1930. [Class 56.] Relates to the manufacture of tube or rod by allowing molten glass 1 to flow through an aperture 2 in the floor of a container, a mandrel 3 being provided to control the outflow.of glass. According to the invention, rotation is imparted to the tube as it is drawn by producing a difference of temperature on opposite sides of the tube as it issues from the aperture. This may be done by heating the tube externally on one side by a burner 4, or internally by means of a jet of hot gas injected through a passage 7 in the mandrel. The temperature difference can be obtained also by cooling the tube locally, or by arranging a shield near one side of the tube to prevent loss of heat by radiation.
Patent GB-378366-A (GB)
Title: Improvements in and relating to telemetering apparatus
IPC: G01R17/08
Filed: 1932-04-25
Abstract: 378,366. Electric signalling systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Johnston, A. J.; 112, East Magn a Avenue, Aldan, Pennsylvania, U.S.A.) April 25, 1932, No. 11841. Convention date, April 24, 1931. [Class 40 (i).] In a telemetering system an operating meter and an electric meter jointly control the current flow to the grid of a thermionic valve, the plate circuit of which includes the electric meter and a remote indicating instrument. In the embodiments illustrating the invention the current flow is controlled by a light sensitive cell, a follow-up device and by variable condensers respectively. As shown in Fig. 1, a operating meter 10 and an electric meter 12 are coupled to shaft 13 with their torques in opposition. A screen 14, fixed to the shaft 13, controls the amount of light supplied to the cell 17 from source 15 via mirror 16 and thus controls the current flow to the grid of the valve. The plate circuit of the valve includes the meter 12 and the remote instrument 11, which can be calibrated to indicate the torque produced in 13 by 10. The glow lamp 24 protects the telemetering circuit against excessive voltages and a filter comprising condensers and impedance 23 is also provided. The power is supplied from the alternating current source 19. The system shown in Fig. 2 is similar to that shown in Fig. 1 with the exception that the shaft 13 alters the vanes of a variable condenser 25 and thus causes a shift in the phase angle of the potential applied to the grid of the valve 18. In the systems illustrated in Figs. 3 and 4, the meters 27 are not directly coupled to the follow-up electric meters 28. As shown in Fig. 3, the contact 29 carried by 27 moves between contacts 30, 31 carried by meter 28. The contact between 29 and 30 or 31 is vibratory and consequently a fluctuating current flows in the remote circuit. The average of which gives an indication of the deflection of 26. In the embodiment illustrated in Fig. 4, the meters 27, 28 carry vanes of a variable condenser 34 which controls the current flow to the grid of the valve 18. In this embodiment the meter 28 will not deflect as much as the meter 27, but the remote instrument 11 can be calibrated to give an indication of the deflection of 27. If the resistance of the circuits and the characteristics of the valves remain constant, all embodiments will give accurate indications of both torque and position, but if the characteristics vary the embodiment shown in Figs. 1 and 2 will give accurate torque indications only whilst those illustrated in Figs. 3 and 4 will give accurate position indications. Specification 353,591 is referred to.
Patent GB-401193-A (GB)
Title: Motion picture apparatus
IPC: G03B21/16
Filed: 1933-04-24
Abstract: 401,193. Kinematograph apparatus. RADIO CORPORATION OF AMERICA, 570, Lexington Avenue, New York, U.S.A. April 24, 1933, No. 11919. Convention date, July 25, 1932. [Class 97 (i).] Motion picture apparatus comprises a base unit, an air cooling unit adapted to be secured upon the base unit, and a projector unit adapted to be mounted either directly upon the base unit or on the air cooling unit according as a low or high wattage lamp is used. With a low wattage lamp the projector unit, having feed sprockets for the film F and a film gate 8 mounted on the end plates 3, 4 of the electric motor 2, is secured by screws 16, 17 engaging screw holes 6, 7, to the base unit 1 in which the sound pick-up mechanism is housed and a lamp housing is suitably attached at the side of the motor 2. With a high wattage lamp, the projector unit is attached by screws 16<1>, 171 to a cooling unit and the latter is attached by the screws 16, 17 to the base unit ]. The cooling unit comprises an air conduit 25 with a lateral extension 26 forming the base of a housing 30 for the lamp 31, A centrifugal blower 21 driven by an electric motor connected in circuit with the lamp drives cooling air through conduit 25, past the lamp 31 and out through an upwardlydirected passage 36 formed in a cover plate 33 secured to the housing 30 by nut 34.
Patent GB-401592-A (GB)
Title: Flinging device for ball games
IPC: A63B59/20
Filed: 1933-04-24
Abstract: 401,592. Ball games. CORBALLO-GES., 115, Kaiserstrasse, and PHILIPP, R. B., 42, Metzstrasse, both in Reutlingen, Germany. April 24, 1933, No. 11942. Convention date, June 24, 1932. [Class 132 (ii).] Projecting and catching appliances.- A throwing and catching device for ball games has a curved rolling surface b of uniform width extending from the catching basket a and terminating in a straight edge k into which the side walls c merge. The inner surface of the device may be lined with soft material, and the rear of the catching basket may contain a catching ring g, or a pad, of sponge rubber.
Patent GB-559561-A (GB)
Title: Improvements in or relating to gauges for testing the alignment of knife-edges
IPC: G01G21/08
Filed: 1942-08-25
Abstract: 559,561. Gauges. MILLER, C. R., and PARR, L. M. Aug. 25, 1942, No. 11977. [Class 106 (ii)] A gauge for testing the alignment of knife-edges carried by a beam, comprises means for supporting the beam, and includes a V-support 14 for engaging and locating a reference knife-edge 15 in a fixed disposition in the gauge, and an optical system in which a ray of light is reflected from a mirror arranged so to engage a test knife-edge 28 as to be angularly displaced in accordance with the angular relationship of the said two knife-edges. As shown, a base has three uprights 17, 11, 22 divided at the top to accommodate the test beam 13, pair of pins 16, Fig. 3, supporting the central knife-edge 15, while knife-edge 21 is held down by contact with a truly cylindrical wire 20 on plate 19. A plate 29 has another cylindrical wire 31 resting on the test knife-edge 28 and a pair of spherical supports 30 resting in a groove 24. Plate 29 carries a mirror 34 reflecting a ray onto a scale such as that in Fig. 9. In use, the unit is moved to test both ends of the knifeedge in turn so as to indicate coplanarity and tilt, after which the ends of the knife-edge are adjusted vertically. The beam is then reversed and the knife-edge 21 is tested for tilt. The unit shown in Figs. 6 and 9 tests for parallelism and equidistance from the central knife-edge, and comprises a mirror 34 biased clockwise until projection 45 engages abutment 27. Horizontal deviation of the ray indicates lack of parallelism and is corrected for. The height of the indication on the scale must be the same for the two knifeedges 21, 28 when tested if they are equidistant from the edge 15.
Patent GB-149316-A (GB)
Title: Improvements in or relating to titanic oxide pigments and the production of the same
IPC: C09C1/36
Filed: 1920-04-30
Abstract: Titanic oxide is obtained in a softer and whiter condition than p heretofore by calcining a mixture of titanium hydrate or oxide (alone or associated with barium sulphate or calcium sulphate) with a small proportion of a suitable phosphorus compound such as phosphoric acid or calcium phosphate.  The crystalline product is pulverized.  In one process a solution of the sulphates of iron and titanium is boiled. A precipitate is formed to which, if phosphoric acid is used, is added a salt of an alkaline earth metal to form an insoluble sulphate with the small fraction of sulphate in the precipitate.  In another process a mixture of the sulphates is electrolyzed and then boiled, as described in Specification 108,850.  To the precipitate are added barium carbonate or calcium carbonate and calcium phosphate.  The mixture obtained in each case is then calcined.  When the oxide in the titanium compound is used it is prepared by heating the hydrate to a temperature just sufficient to remove the water. Specifications 104,885, 105,645, [Class 95, Paints &c.], 105,646, 108,875, [Class 95, Paints &c.], 110,535, and 116,266 are referred to.
Patent GB-1011499-A (GB)
Title: Process for preparing high impact polymers
IPC: C08F279/02
Filed: 1964-03-20
Abstract: Rubber-modified vinyl aromatic polymers are made by dissolving 2 to 25%, based on the total weight of monomer and polymer, of a rubbery polymer in styrene or a nuclear alkyl or halogen derivative thereof, or a mixture of such monomers, partially polymerizing the resulting solution to an extent of 10 to 45% conversion, transferring the partially polymerized mixture to an agitated aqueous medium containing a hydroxyethyl cellulose suspending agent, and continuing polymerization in the presence of a peroxide initiator substantially to completion. Rubbers specified are natural rubber, homopolymers of butadiene and isoprene, copolymers of butadiene with styrene and acrylonitrile, copolymers of isobutylene and butadiene or isoprene, polycyclopentadiene and chlorinated rubber. The aqueous medium may also contain a surface active agent.  Specification 609,692 is referred to.
Patent GB-866857-A (GB)
Title: Solutions for the production of light-fast coatings, lacquers and adhesives
IPC: C08G18/80
Filed: 1959-04-09
Abstract: Solutions for the production of coatings, lacquers and adhesives comprise 3-(a -isocyanatoethyl)-phenyl isocyanate or a reaction product thereof with a polyhydroxy compound which product contains isocyanate groups, the ratio between the NCO groups and the OH groups being more than 1 and up to 2, a polyhydroxy compound, an inert organic solvent and if necessary also an isocyanate reaction accelerator.  The isocyanate group-containing reaction products can be prepared from ethylene glycol, butylene glycol, hexane diol, diethylene glycol, glycerine, trimethylol propane, trihydroxy butane, pentaerythritol, triethanolamine, polyether glycols, polythioether glycols, and polyesters containing hydroxyl groups, the aromatically attached isocyanate group reacting almost exclusively.  Adducts of the polyisocyanates with phenols, malonic esters and acetoacetic esters can also be used.  As polyhydric compounds there can be used polyhydric alcohols such as trimethylol propane or pentaerythritol, saturated or unsaturated polyesters containing hydroxyl groups, polyesteramides, cellulose derivatives, polyacetals, hydrogenated phenol-formaldehyde resins, urea-formaldehyde resins, ethoxyline resins and their modifications, and diisocyanate-modified polyhydroxy compounds. Specified solvents are ethyl or butyl acetate, diethylene glycol monomethyl ether acetate, acetone and cyclohexanone, with which may be mixed hydrocarbons.  When the isocyanate is employed as a reaction product with polyalcohols, and only the aliphatic isocyanate groups are free, there should be added to the lacquer or adhesive an accelerator such as a tertiary amine or a zinc salt, e.g. zinc octoate, naphthenate or stearate.  Exemplified are compositions of (1) trimethylol propane, adipic acid/butylene glycol/trimethylol propane polyester, ethyl, butyl and methyl glycol acetates, and 3-(a -isocyanatoethyl)-phenyl isocyanate; (2) a 3-(a -isocyanatoethyl)-phenyl isocyanate-trimethylol propane reaction product, adipic acid/phthalic acid/trimethylol propane polyester, adipic acid/trimethylol propane/butylene glycol polyester, ethyl, butyl and methyl glycol acetates, toluene and zinc octoate.
Patent GB-934322-A (GB)
Title: Apparatus to detect liquid level
Inventor: READ WILLIAM CHARLES
IPC: G01F23/292
Filed: 1962-03-29
Abstract: 934,322. Liquid level detectors. THERMAL SYNDICATE Ltd. March 29, 1962, No. 12056/62. Class 123 (1). A method of detecting when the boundary surface between a liquid and a gaseous medium within a container 6 lies in a particular plane comprises passing a beam of light from a lamp 8 along a piece of material, e.g. a tube 1, which is transparent to the radiation, is disposed within the container 6 and has a groove 3 indenting the liquid contacting surface of the material to form a reflecting surface 5 which is intersected by the plane, a photo-electric device 9 being provided to detect differences in the intensity of radiation reflected from the surface 5 depending on whether this surface is in contact with the liquid. Light from the lamp 8 passing down the wall of the tube 1 will be totally internally reflected by the surface 5, which is disposed at 45 degrees to the liquid surface, on to the photo-electric device 9 unless the surface 5 is in contact with the liquid when most of the light will be refracted out of the tube 1. The device 9 is connected to a detecting circuit 10 designed so that a signal lamp 11 is switched on if the device is illuminated i.e. when the surface 5 is in contact with the gaseous medium. The tube 1 may be of vitreous silica and the device 9 may be a photo-cell or a germanium phototransistor. Cooling fluid may be circulated in the tube 1 if the temperature of the liquid is greater than the maximum operating temperature of the device 9. The tube 1 may have more than one groove 3, each with an associated device 9 and circuit 10 and where two grooves are employed, the outputs from the two circuits 10 may be used to control the level of the liquid between a high and a low level through use of e.g. a relay in place of the lamps 11. In an alternative embodiment (Fig. 2, not shown), the photo-electric device 9 may be disposed at the top of the tube 1, the light reflected from the surface 5 being conducted to the device by a silica rod with a ground or bent lower end inserted inside the tube 1 to the level of the surface 5.
Patent GB-806708-A (GB)
Title: Improvements relating to the production of foam rubber
Inventor: DAVEY WALTER CECIL
IPC: C08J9/00
Filed: 1956-04-20
Abstract: Foam rubber is prepared by foaming a gellable aqueous rubber dispersion, causing or allowing the foam to gel, and vulcanizing the gelled foam by treatment with sulphur dioxide and with hydrogen sulphide.  The aqueous rubber dispersion may consist of natural rubber latex or a latex of butadiene-styrene copolymer, or of a copolymer of butadiene or other conjugated diene with acrylonitrile, methyl methacrylate, or methyl isopropenyl ketone, or a graft polymer latex obtained by polymerizing unsaturated monomers, e.g. butadiene and styrene, in natural rubber latex, or the dispersion may consist of a mixture of natural and synthetic rubber latices.  The dispersion may contain sodium silicofluoride as gelling agent, a water-soluble fatty acid soap as foaming agent, zinc oxide, antioxidants, colouring agents, and fillers. Vulcanizing accelerators are normally unnecessary, but may be added if desired.  Foaming is effected by beating air into the dispersion, or by the decomposition of hydrogen peroxide.  The gelled foam is treated separately, and preferably alternately, with the sulphur dioxide and hydrogen sulphide, The gas treatment may be effected in a mould having gas inlet and outlet apertures between which a slight pressure difference is maintained. Alternatively sheet foam rubber may be made by discharging the foamed aqueous rubber dispersion on to a travelling-belt conveyer, gelling, and treating with sulphur dioxide and hydrogen sulphide alternately while on the conveyer.  The foam rubber products are washed to remove excess sulphur dioxide or hydrogen sulphide, and any free sulphur may be removed by boiling with a de-sulphurizing agent such as an aqueous alkali-metal sulphide, sulphite, or hydroxide.
Patent GB-436892-A (GB)
Title: Improvements relating to hydraulic remote control
IPC: F16K31/14
Filed: 1934-04-21
Abstract: 436,892. Hydraulic remote control apparatus. EXACTOR CONTROL CO., Ltd., and PARKIN, W. H., Dorland House, Lower Regent Street, London. April 21, 1934, No. 12076. [Class 69 (ii)] In a two pipeline hydraulic remote-control apparatus, port or valving arrangements are provided so that at a plurality of positions or phases of operation, one or both pipelines communicates with a reservoir. In the form shown in Fig. 1, the transmitter has an elongated piston 4, a port 10 connected to a reservoir, and pipelines 2, 3 leading to the receiver. In another form, valves 12, 13, Fig. 3, operated by the transmitter lever 8 govern communication between bores 15, 16 each connected to a pipeline and a bore 17 connected to a reservoir. A modification has a single valve 20. In a further form, the transmitter lever 51, Fig. 5, has a cam element 54 with depressions 54<a>, adapted to control spring-influenced valves controlling communication between the pipelines 52, 53 and a reservoir. Reference has been directed by the Comptroller to Specifications 16042 /10 and 125,487, [both in Class 69 (ii)].