baber/WOPTO huggingface dataset:
Patent GB-689769-A (GB)
Title: Modulator for pulse signalling systems
IPC: H03K7/00
Filed: 1951-11-01
Abstract: 689,769. Pulse modulation. PHILCO CORPORATION. Nov. 1, 1951 [Dec. 29, 1950], No. 25574/51. Class 40 (v). A modulator for converting a signal into series of discrete amplitude-modulated pulses comprises a normally-blocked modulating valve 10 to which the signal from a source 24 is fed, and a normally-conductive gating valve 48 to which gating-pulses 52 of negative sign are fed; the anode 46 of the valve 48 being con. nected to the grid of the valve 10 to unblock that valve during pulses so that its anode delivers output pulses 66 of an amplitude dependent on the instantaneous voltage of the modulating signal. The anode of the gating- valve 48 and the grid of the modulating-valve 10 are connected to H.T. supply 40 through a resistor 42, and to the signal transformer secondary 28 through a diode valve 36 shunted by a leak resistor 38. During the intervals between pulses, the anode voltage of the gating- valve is low, and the diode 36 is then blocked against the signal voltage 24. The high resistance of the shunt path 38, together with the low resistance of the valve 48 result in high attenuation of the signal arriving at the grid of the modulating valve 10; the signal transferred by capacity effect to the anode output of the valve 10 is thus negligible, and cross-modulation of other channels of a multiplex system is avoided. During pulses the gating-valve 48 is blocked by the unattenuated instantaneous signal voltage is applied to the grid of the modulating-valve 10 and gives amplitudemodulated negative pulses 66 at its anode. The gating-pulses 52 may be applied to the grid of the valve 48 through a resistor 65, a condenser, and a diode 56 shunted by a-resistor 58, through which positive bias is applied to the grid. A resistor 22 in the cathode lead of the modulating-valve gives linearity of pulse output. The gating-valve 48 and the modulating- valve 10 may be housed in the same envelope as to form a twin-triode.
Patent GB-860027-A (GB)
Title: Improvements in tipping semi-trailers
IPC: B60P1/18
Filed: 1958-08-08
Abstract: 860,027. Tipping trailers; road vehicle spring suspensions. MORSE, R. L., and GLICK, J. L. Aug. 8, 1958, No. 25577/58. Classes 108(1) and 108(2). A tipping semi-trailer having a fifth wheel coupling to which is pivoted a jack 33 and draw bars 35, is provided with links 39 pivoted at 38 and 40 which when the trailer is tipped press down upon the front end of a chassis member 16 carrying the pivot 24 and cause the pivot to either remain at its normal height or rise slightly. The upper chassis member 16 is connected at its forward end through a bracket 29 to a spring 27, and is provided with arms 30 and bosses 31 by which it is pivoted at 32 to the lower chassis member 17. The member 17 is connected at one end to an axle 25 and at its other end to the rear of the spring 27 so that movement may take place between the chassis members 16 and 17. In Fig. 7 the links 39 are replaced by an hydraulic jack 39a pivoted at 40a on struts depending from the member 16. In other modifications the chassis comprises a single member, and the link 39 may either be pivoted at a different position on the draw bars 35 or be replaced by link work having a toggle action. In yet a further modification, Fig. 10, the link 39 is lengthened so that a single chassis member supported on a single axle may be tilted during tipping from the normal dotted position to the full line position wherein the pivot 24 is raised. The means for tipping may comprise screws, chains, cables or the like for pulling the tractor and trailer toward each other or an external hoist acting directly on the front of the body. The trailer suspension comprises a spring 27, Fig. 1, having a floating connection at 29 with the upper frame member 16, and a pivotal connection at 28 with the under frame member 17, the frames 16, 17 being pivotally connected together by struts 30 and a shaft 32. The rear axle 25 is mounted directly on the frame 17 and a link 47 connects the axle 26 to the front portion of the frame 16. In Fig. 7, pivots 129 and links 45 permit tilting of the frame 16 with respect to the frame 17. Reference has been directed by the Comptroller to Specification 792,094.
Patent GB-722711-A (GB)
Title: Improvements in and relating to pilot gas burners
Inventor: EVES ERNEST WILLIAM
IPC: F23D14/04
Filed: 1952-10-06
Abstract: 722,711. Gas and vapour burners. PERL CONTROLS, Ltd. Oct. 6, 1952 [Nov. 2, 1951], No. 25689/51. Classes 75 (1) and 75 (3) A neat gas ladder pilot burner 16, Fig. 1, for use in a burner system having a number of main burners 10 comprises an outer tube 20, Fig. 2, having a continuous longitudinal slit 26 with a number of spaced enlargements 30 to provide longer flames adjacent to some or all of the main burners, and a smaller diameter tube 22 disposed within the tube 20 and having a number of widelyspaced openings 24 angularly displaced, e.g. by 180 degrees, from the slit 26. Gas is fed to the inner tube 20 and is evenly distributed through the holes 24 in the space between the tubes 20, 22 to issue at the slit 26 where it is ignited. The enlargements 30 may be aligned with additional holes 46 in the tube 22. Both pipes 20, 22 may be made in sections and jointed together, and gas or vapour may be supplied at one or each end of the pipe 22 by a conduit passing through a cup sealing the adjacent end of the pipe 20. The other ends of the pipes 20, 22 may be sealed by a common cap, or the pipe 22 may be sealed by flattening whilst the pipe 20 only is capped.
Patent GB-210375-A (GB)
Title: Improvements in and relating to nursing bottles
IPC: A61J9/00
Filed: 1923-10-15
Abstract: 210,375. Dunkelberger, G. L. Oct. 15, 1923. Feeding - bottles. - A feeding-bottle comprises a cylindrical body 1 havinner and outer walls 3, 4, of aluminium or similar light metal, united at 5 at the mouth of the vessel and formed into a bead 6 having a flat upper seating face. A heat insulating filling 7, of granulated cork &c., is contained between the walls, and a scale 9 is moulded on the inner wall. A cap 11 with a resilient depending rim 13 and a filler 12 of cork &c. is provided. In use, the cap is removed and a wide base teat fitted to the mouth.
Patent GB-1129424-A (GB)
Title: Radiation treatment to render polyesters susceptible to permanent retention of dyes
IPC: D06M14/30
Filed: 1967-06-05
Abstract: 1,129,424. Grafted polyesters. ATOMIC ENERGY OF CANADA Ltd. 5 June, 1967 [23 Feb., 1967], No. 25775/67. Heading C3G. [Also in Division D1] The dyeability of polyesters is improved by exposing a polyester in contact with a grafting solution comprising a polymerizable monomer selected from vinyl monomers containing a hydrophilic end group and vinylidene monomers containing a hydrophilic end group in a solvent comprising methanol, ethanol or a mixture thereof, to gamma radiation. The polyester is e.g. polyethylene terephthalate or polycyclohexyl terephthalate. Specified monomers are vinyl and vinylidene amides, amines, chlorides, sulphones and sulphonates and acrylic and methacrylic acids. The monomer mixture may comprise 15-30% by weight of styrene. In the examples, polyethylene terephthalate fabric is soaked in a solution in methanol of methacrylic acid or acrylamide, alone or together with styrene, and then subjected to Co-60 gamma irradiation. The grafted fabrics are dyed.
Patent GB-1170515-A (GB)
Title: Dyeing and Printing of Fibre Substrates
Inventor: DINGES KARL
IPC: D06P1/44
Filed: 1967-06-05
Abstract: 1,170,515. An emulsion polymerization process. FARBENFABRIKEN BAYER A.G. 5 June, 1967 [3 June, 1966], No. 25845/67. Heading C3P. [Also in Division D1] Pigment dispersions and printing pastes for use in treating fibrous materials comprise an organic and/or inorganic pigment and a binding agent which is an aqueous emulsion of a copolymer of at least one acrylic and/or methacrylic acid derivative containing a terminal halomethylcarbonyl grouping and at least one other olefinically unsaturated monomer which may contain an alcoholic hydroxyl group. Said (meth)acrylic derivative is preferably one having the formula where R is H or methyl, A is or and X is Cl or Br. (The preparation of copolymers of these preferred compounds is described in Specification 1,170,514. In the examples these preferred compounds are copolymerized with monomers selected from nbutyl acrylate, styrene, #-hydroxypropyl methacrylate, acrylamide, ethyl acrylate, methacrylamide-methylol methyl ether, vinyl toluene, methacrylamide, 2-ethyl-hexyl methacrylate, acrylonitrile, methacrylic acid and butadiene. The inorganic pigment may be zinc sulphide, titanium dioxide, cadmium sulphide, iron oxide, antimony oxide or carbon black; various organic pigment or lake dyestuffs are also specified. The compositions may also include other additives, e.g. urea and thickeners such as cellulose derivatives, alginates, tragacanth, polyacrylamide and ammonium polyacrylate. The copolymer component can be crosslinked in an alkaline medium at 80-160‹ C. In the first example, a copolymer is prepared by the emulsion polymerization of a monomer mixture comprising n-butyl acrylate, styrene, #-hydroxypropyl methacrylate, acrylamide and the compound of the formula using a potassium persulphate-sodium pyrosulphite catalyst.
Patent GB-850046-A (GB)
Title: Improvements relating to rotary-extrusion presses
Inventor: WALD JOSEPH
IPC: B30B11/20
Filed: 1958-08-12
Abstract: 850,046. Pelletting plastic materials. TEMPLEWOOD HAWKSLEY Ltd. Dec. 30, 1958 [Aug. 12, 1958], No. 25863/58. Class 87(2). An extrusion machine comprises a die 7 arranged to be rotated by a shaft 9, a stationary member 3, in the base of a hopper 2, having rollers 5, with shafts in the member 3, to extrude plastic material through the die and a plate 19 attached to the shaft 9 to throw outwardly, through adjustable feed channels 19, 21, the material fed to the die. The die may be in two parts, a base 8 and ring 7 and may be coupled to the shaft 9 by a shear pin 12 breakable in case of jamming of the machine. The member 3 may have scrapers 6 (as best seen in Fig. 2) to scrape the base of 'the die. The adjustable feed channels may be mutually displaceable holes 19, 21 leading into shoots 22 discharging the die. A cutting knife 23 is provided to shear the extruded rods into pellets.
Patent GB-705108-A (GB)
Title: Plastic masses from tar or bitumen
Inventor: GLANDER WILHELM
IPC: C08L95/00
Filed: 1951-11-06
Abstract: Tar or bitumen or both are mixed with a thermoplastic polymer and an oxidizing agent which impedes the decomposition of the polymer, and the mixture heated to a temperature above 120 DEG C. The polymer may be polyvinyl chloride, a mixture of polyvinyl chloride and polystyrene or a vinyl chloridevinyl acetate copolymer, and the oxidizing agent may be minium, pyrolusite or chromium trioxide. Examples describe the incorporation of kaolin, talcum powder and asbestine in the composition.  Small quantities of organic solvents such as benzene and trichlorethylene may be added to the product.
Patent GB-849230-A (GB)
Title: Improvements relating to induction heaters for billets
IPC: H05B6/02
Filed: 1957-08-16
Abstract: 849,230. Induction heaters for billets. OHIO CRANKSHAFT CO. Aug. 16, 1957 [Aug. 16, 1956], No. 26006/57. Class 39(3). [Also in Group XII] In induction heating apparatus for heating billets, a billet being heated in an induction coil is held-in position by a previously heated billet located in a soaking receiver. As shown in Fig. 1, two billets A, B are being heated in coils 10, 11 energised by three-phase supplies at mains frequency, the connections being such that the billets are urged along skid rails 17 in the direction of the arrows 15, 16 by the magnetic fields produced within the coils, and the billets contact the ends of a previously heated billet C in a soaking chamber 12. A billet D and a billet E are ready to be inserted into the coils by air cylinders 27, 28, billet C is ready for discharge from the chamber 12, and the coils have been de-energised. Air cylinders 24, 25 are energised to cause a door 22 to be raised and a piston 23 to move the billet C from the chamber along rails 18. The door and piston are then returned to their normal positions and the coil 10 energised, the billet A moving into the chamber and against the billet B in coil 11. At the same time, billet D is pushed into the coil 10 by energisation of the cylinder 27 and abuts against billet A. Coil 11 is then re-energised and billets B, D are heated until they reach full and intermediate temperatures respectively. At this time, billet A had gained a uniform heat pattern in the chamber and is removed via the door 22. Billet B is then inserted into the chamber and a new billet E inserted into the coil 11. Coil 10 is then re-energised. The cycle may be continued on succeeding billets. The door 22 may be opened manually and the air cylinders may be replaced by motor driven means or solenoid actuated devices. The chamber may be provided with auxiliary resistance heating elements 26 but gas burners or induction heating coils may be used. In a modification, Fig. 5 (not shown), only one heating coil is provided, and the end of the soaking chamber remote from the coil is provided with a stop with which the billets engage. In both embiodments, each coil may contain two or more billets at a time provided the axial lengths of the billets are appropriate to those of the coils and the chamber.
Patent GB-908743-A (GB)
Title: Anterior pituitary growth hormone preparations and process for the manufacture thereof
IPC: A61K38/27
Filed: 1960-07-27
Abstract: The invention relates to anterior pituitary growth hormone preparations prepared from anterior pituitary growth hormones obtained from animal pituitaries by the effect of a reducing agent which is known to be capable of converting the disulphide linkages -S-S- present in the molecule into -SH groups or -SH and -S2O3H or -SH and -SCN groups.  Suitable reducing agents are thioglycollic acid, alkali metal sulphites, alkali metal cyanides, alkali metal borohydrides, alkali metal aluminium hydrides and alkali metal trialkoxy borohydrides.  The sulphydryl groups present in the reduced anterior pituitary growth hormone may be protected in known manner, e.g. by means of iodo-acetic acid or N-ethyl maleinimide.  In one example, cattle anterior pituitary growth hormone is dissolved in aqueous phosphate buffer of pH 6.5 and partially reduced with aqueous sodium sulphite solution, the pH is adjusted to pH 2.0, iodo-acetic acid added and the reaction continued at pH 8.7 to completion.  The solution is dialysed against distilled water and lyophilized.
Patent GB-974572-A (GB)
Title: Improvements relating to the manufacture of yarns of artificial fibres
IPC: D01H1/08
Filed: 1962-07-09
Abstract: 974,572. Wrapping artificial fibre. COURTAULDS Ltd. (Les Files de Calais). July 8, 1963 [July 9, 1962], No. 26170/62. Heading B8C. A method of extracting an annular cake of artificial fibre 20, Fig. 4, from a spinning box 21 and wrapping the cake comprises the steps of placing within the central aperture of the cake a plug together with a portion of the wrapping material, expanding the plug to engage and grip part of said portion against the wall of the aperture, withdrawing the plug so as to extract the cake from the box, wrapping the remainder of the material around the outside of the cake and collapsing the plug to remove it from the wrapped cake. The preferred wrapping material is tubular stockinet. The plug, Fig. 1, intended for manual operation, comprises a tube 1, rubber or plastics bladders 5 and a three-position 10 in a compressed-air circuit. In use the plug is placed as shown in Fig. 4 with part of the wrapping material around the outside of the plug and the remainder within a tubular member 14, shown extended in Fig. 8, slidably housed in the tube 1. With tap 10 turned to its second position air is allowed to enter a chamber 7 and thence bladders 5 which expand to engage the inner wall of the cake. The cake is removed from its spinning box and inverted and tap 10 is moved to its third position where the bladders are held inflated and member 14, together with the material placed therein, is pushed out of tube 1 by a piston 13 (Fig. 2, not shown) when the operator holds closed a port 16 in handle 3. The cake, resting on a flange 9, is externally wrapped by hand as shown in Fig. 8. With the tap turned to its first position the air supply is cut off and the bladders 5 are allowed to deflate by opening port 16 thereby releasing the cake. A trolley is described which carries compressed air facilities, a magazine for wrapping-pieces, a tray for receiving wrapped cakes and a support in which a bar 4 on the plug may be clamped.
Patent GB-318206-A (GB)
Title: Improvements in thread guides for thread winding machines
IPC: B65H57/00
Filed: 1929-08-28
Abstract: 318,206. Comptoir des Textiles Artificiels Soc. Anon. Aug. 30, 1928, [Convention date]. Thread-guides.-The reciprocating guide-device in a machine for winding yarns comprises a body member, guide means disposed in the upper end thereof and adapted to rest on the wound thread, and members extending laterally and backwardly of the guide means and adapted to lay down any loose threads upon the wound package so that subsequent windings cover them. The guide-button 6, Figs. 4 and 5, notched at 7, is secured by a groove 5 in a recess 4 formed in the upper portion 2 of the guide body-member 1, the portion 2 being offset from the middle 3 of the member 1 and the lower portion 12 also being offset and formed with a foot 13 adapted to engage a key-way 22 in the traverse-bar 16, Fig. 1. Two wire-like members 8 are formed integrally with the member 2, or are secured thereto, being curved rearwardly, then bent horizontally at 9 and downwardly at 10, the ends 11 being secured to the body-member 1. During winding, any loose thread will be engaged by the wings 8 laid on to the package and covered by subsequent windings. In a modification, the portions 9, 10 are omitted from the wings 8<1>, Figs. 7 and 8. A part 14 is offset from the body 1 and adapted to engage a guiding and supporting-member 24, whereby the guide is prevented from being dislocated during the operation of the machine.
Patent GB-322260-A (GB)
Title: Improvements in or relating to signs for advertising and like purposes
IPC: G09F19/00
Filed: 1928-09-14
Abstract: 322,260. Lugg, E. T. F., and Evans, T. C., Sept. 14, 1928. No Patent granted (Sealing fee not paid). Elements moving always in one plane, rotating; actuating.-In signs comprising two coaxial discs rotated in opposite directions, the front disc b is opaque and is provided with one or more narrow radial slots y the width of which can be adjusted by a plate z. The rear disc q carries in openings s glass slips t bearing radially arranged display matter, and is furnished with sector-shaped apertures r through which advertising matter may be seen on a background u of ground glass &c. The disc q may be built up of two superposed sheets pressed out around the openings s to form grooves to receive the slips t, which are retained by spring pins &c. Rear illumination is provided by lamps v and reflectors w. The circumferential width of the characters on the slips t is greater than that of the slot y and increases proportionally to its distance from the axis of the disc. The discs b, q may be driven by electric or other motor, or by wind vanes, and means may be provided for varying their relative speeds.
Patent GB-921825-A (GB)
Title: Dispensing device
Inventor: DANES JAMES ROWLAND HENRY
IPC: A47F1/08
Filed: 1960-07-29
Abstract: 921,825. Dispensing hollow cones. UNILEVER Ltd. July 29, 1960, No. 26569/60. Class 78 (1). A stack of hollow cones, particularly icecream cones, of rectangular cross-section are stored in a chamber 3 of rectangular cross-section, two of whose opposite side walls leave pads 6 of foam rubber attached at their lower ends. The pads may be coated with smooth material and the cones are dispensed singly by pulling on the lowermost cone. The dispenser is a cardboard container 1 divided by internal partitions 2 to provide three identical cone-dispensing chambers 3.
Patent GB-1122011-A (GB)
Title: A regulating device for elastic-fluid turbines
IPC: F01D25/32
Filed: 1965-06-23
Abstract: 1,122,011. Steam turbines. G. GYARMATHY. June 23, 1965 [June 24, 1964], No.26578/65. Heading F1T. A regulating device for steam turbines in which one or more stages are traversed by wet steam comprises means for detecting the occurrence of water vapour when the dry saturated steam changes to wet steam, the signals produced by the detecting means serving to influence the regulating device of the turbine in such a manner that the occurrence of wet steam is caused to occur within a region of the turbine at a point where the gradient of pressure decrease is high compared with regions upstream and downstream of this point. The object of the invention is to ensure the formation of fine water droplets which is found to occur when the change from dry steam to wet steam takes place when the rate of pressure drop is high. In Fig. 5 for example the pressure and temperature of steam in the axial space 10 between adjacent blade rows is measured by a pressure sensing device 13 and a temperature sensing device 14, the signals being transmitted to a control device 15 together with a pressure signal from a device 9 which measures the pressure in axial space 7 downstream of the axial space 10. The device 15 acts to control the turbine so that the size of the water droplets which occur in the blade row are of a constant fineness. In a second embodiment the steam and water mixture in the turbine is subjected to a light ray, use being made of the variation of permeability of vapour in dependence on the size of water droplets present therein. One means of regulation referred to comprises reheating steam in an interstage reheater to an excess temperature and then reducing this temperature to a desired constant value by admixture of water or cooler steam Fig. 9 (not shown). The valve controlling the flow of cooling water or steam is controlled by a device such as the device 15 of Fig. 5. In a steam turbine plant without interstage reheat the regulation may be variation in the turbine inlet pressure, a throttle valve being provided in the steam line upstream of the nozzle valves and controlled by a device similar to that shown in Fig. 5 responsive to the size of the water droplets formed in the turbine. The theoretical basis of the invention is described in detail with many examples of applications.
Patent GB-903292-A (GB)
Title: Method of and apparatus for distributing pesticides
Inventor: WHITNEY GEOFFREY FITZWALTER HE
IPC: A01M13/00
Filed: 1957-08-23
Abstract: 903,292. Apparatus and process for dissemination of volatile pesticides. AEROVAP HOLDINGS Ltd. Aug. 25, 1958 [Aug. 23, 1957], No. 26634/57. Class 81 (1). An apparatus for disseminating a volatile pesticide into the atmosphere or depositing it into a surface, comprises means for producing a forced draught of heated gaseous medium, e.g. air, and passing the heated gas through a foraminous structure on which is deposited the volatile material. A device which may be held in the hand is shown in the Figures, wherein a centrifugal blower driven by an electric motor, and an electric resistance heater are contained in the housing 1. The outlet section 5 is adapted to enable attachment of a metal cartridge 11 which is held in position by the threaded collar 8 acting on the cartridge flange 10. The cartridge holds a foraminous structure 13, e.g. glass wool, discrete particles which themselves may be foraminous or impervious, or preferably a self-supporting structure of, e.g. embossed, crepe or corrugated cardboard or filter paper on which is deposited the volatile material. The airflow may be controlled, e.g. by incorporating an adjustable opening in the inlet and/or outlet of the blower. The invention includes larger apparatus either portable or fixed which may be driven by an internalcombustion engine. Specified volatile materials are DDT, lindane, aldrin, dieldrin, diazinon, dehydroacetic acid and formaldehyde.