baber/WOPTO huggingface dataset:
Patent GB-712912-A (GB)
Title: Improvements in and relating to the production of cellulose xanthate
Inventor: WEIGHAM WILLIAM REGINALD
IPC: D01F2/08
Filed: 1951-08-22
Abstract: 712,912. Feeding alkali cellulose. COURTAULDS, Ltd. Aug. 21. 1952 [Aug. 22. 1951]. No. 19792/51. Class 78 (1) In the production of cellulose xanthate, alkali cellulose is fed to the xanthating churr from a measuring hopper, the hopper having a capacity equal to the churn and hav ing a number of compartments dischargable separ ately. As shown, the alkal cellulose is delivered by a conveyer and falls down shool '5 on to distributing cone ( whence it falls into the compartments of hopper 7. Wher the latter (which may' forrr part of the weighing mechanism) contains the predetermined amount the compartments are discharged separately or two or more at a time through doors 8 intc shoot 10 fitted with hinged plate 13 which guides the material into either of two xanthating churns. Hopper 7 may be fixed or rotatable.
Patent GB-785972-A (GB)
Title: Process for the preparation of purified concentrates with intrinsic factor activity
IPC: A61K31/00
Filed: 1956-06-27
Abstract: Purified intrinsic factor preparations are obtained by treating a concentrate with intrinsic factor activity, in the presence of Vitamin B12, in an aqueous system which contains 35-50 per cent by volume of an alkanol or alkanone with not more than three carbon atoms, and separating the resulting liquid phase which contains the active constituent.  For example, methanol, ethanol, isopropanol, propanol and acetone may be employed. Preferably the treatment is effected in the presence of one or more salts, e.g. sodium chloride, at a pH 6-7, and at 0 DEG  C. or at a lower temperature.  Extra purification may be obtained by increasing the alkanol or alkanone concentration to a value ranging from 60-75 per cent by vol.  The product comprising I.F. activity-containing compound with bound Vitamin B12 is useful in the treatment of pernicious anaemia. Specification 733,875 is referred to.
Patent GB-799060-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B21/34
Filed: 1956-06-27
Abstract: 799,060. Water-tube steam boilers; regulating superheat temperature. VORKAUF, H. June 27, 1956 [June 29, 1955], No. 19896/56. Classes 123(2) and 123(3) In a water-tube steam boiler the steam generating tubes 4 lining the furnace front and rear walls discharge into an intermediate header 2 whence tubes 6, 5 lead to the steam and water spaces respectively of the boiler drum 1. A tube coil 3 is disposed in the header 2 and is connected between superheater sections 14, 19. The amount of superheated steam flowing through the coil 3 and thereby attemperated by indirect contact with the steam-water mixture in the header, is controlled by a by-pass valve 21 adjustment of which enables the final steam temperature to be regulated. The valve 21 may be replaced, as shown in Fig. 4, by a rotary valve 28 mounted in the cover of the header 2. In a modification, Fig. 5, the riser tubes 4 discharge into a header 32 which is connected to the drum 1 by a pipe 5 and to an upper header 31 containing the coil 3 by a short vertical pipe. The header 31 is connected to the steam space of the drum 1 by a pipe 6. At lower loads the pipe 5 conducts all of the steam-water mixture to the drum 1 and there is substantially no superheat attemperation. At higher loads, the tendency for the superheat temperature to rise is automatically counteracted by the increased carry-over of water into the header 31. Valves may also be fitted in the pipes 5 to give direct control of the water flow through the header 31.
Patent GB-755471-A (GB)
Title: Tank liquid filling apparatus with automatic flow arresting means
IPC: F16K21/18
Filed: 1954-07-07
Abstract: 755,471. Filling tanks with liquid. AVERY HARDOLL, Ltd. July 7,1954 [Jan. 18, 1954], No. 19916/54. Class 116 [Also in Group XXIX] A tank liquid filling device has a single jet and pitot tube 34, 36 in a chamber 35 connected to inlet ports 6, 7 inside the tank one above the other, communication between the ports and the chamber being controlled by a. piston type slide valve 8 driven by a piston 27 actuating a main valve 1, the cylinder space 14 opening downstream of the valve 1, via ports 17, 18 when the piston moves the slide valve to open the upper port 7 to the chamber 35. On adjusting the cock 13 as shown inlet pressure at 16 via passage 31 lifts the piston and main valve so that a main valve orifice 3 is lifted off a pad 4 and inlet liquid flows through ports 33, tube 26, the jet and pitot tube and maintains the valve open, the jet drawing in air through ports 6, 38, 37, 5 as it passes the pitot tube to the outlet 24 via nozzle 2. The cock is then turned to close both passages 31, 32. When the level closes port 6, the jet broadens, the pressure in the cylinder falls and the piston and valve move to a partially closed position in which the ports 17, 18 communicate and the slide valve opens the port 7 to the chamber 35. When the level closes port 7, the piston and valve move to the completely closed position. The valve may be closed at any time by turning the cock to open the cylinder to the outlet via passage 32. Leakage along the slide valve is taken from the chamber 44 by suction in the tube 46.
Patent GB-865431-A (GB)
Title: Beam-type tube
IPC: H01J23/09
Filed: 1958-06-20
Abstract: 865,431. Travelling-wave tubes. HEWLETTPACKARD CO. June 20, 1958 [July 18, 1957], No. 19922/58. Class 39(1). An E-type beam tube has a slow wave circuit comprising an even number of part cylindrical conductors 12 round which an electron beam 26, from a gun 15, describes a helical path between the slow wave circuit and a concentric cylindrical conductor 19. Cylinder 19 is maintained at a negative D.C. potential with respect to the D.C. potential of the slow wave circuit and the electron velocity is chosen so that the outward centrifugal force on the electrons is balanced by the inward electrostatic force. As the electrons travel in their spiral path they can give up potential energy to the R.F. field by moving inwards to the region of higher D.C. potential. By controlling the electron velocity the frequency with which a given electron. crosses the gaps 13 between conductors 12 and hence the output frequency may be controlled. One end of the slow wave circuit may be terminated as at 21, the output being obtained from the other end of circuit 11, the electron beam thus being coupled to the backward wave component of the R.F. field. Alternatively the end 21 may serve as an input terminal whereby a signal applied there is amplified and the amplified signal is available at the other end of circuit 11, or the beam may be coupled to the forward wave component by reversing the roles of the input and output ends. The electron beam may be collected by inserting a collector member through a hole in cylinder 19, the member being at the same potential as the slow wave circuit, thus forming a field free region which when reached by the electrons causes them to move outwards and strike the collector.
Patent GB-1530075-A (GB)
Title: Artificial fingernail display package
IPC: A45D31/00
Filed: 1977-05-12
Abstract: 1530075 Display packages E V AYLOTT 12 May 1977 [27 Oct 1976] 20004/77 Divided out of 1517592 Heading A4T [Also in Division B8] An artificial finger nail display package includes an artificial finger nail 2 aligned with transparent portions 11 of the package so that a finger may be placed below the nail 2 which may then be examined for suitability through one transparent portion 11. A moulded frame bearing detachable nails 2 may be placed within a rectangular box 10 having opposed transparent portions 11 in top and bottom walls. Alternatively, Fig. 4 (not shown), a set of nails united by a common injection moulded sprue may be visible through transparent portions (23) or a single nail within a transparent portion 31 by a vacuum-formed inset (32), Fig. 5 and Fig. 6 (not shown).
Patent GB-787950-A (GB)
Title: Process for the preparation of surface-active sulphuric acid alkyl ester salts and alkyl aryl sulphonates
Filed: 1956-06-28
Abstract: Surface-active secondary sulphuric acid alkyl ester salts and alkyl aryl sulphonates are prepared from a thermal vapour phase cracked distillate of paraffin-containing hydrocarbons, which cracked distillate is derived from a heavy cycle oil or a mixture thereof with a slurry oil, and from which the aromatic content has been wholly or mainly removed by selective solvent extraction, by a process which comprises sulphating the cracked distillate, converting the sulphation product into secondary sulphuric alkyl ester salts, removing the unconverted organic material and using it to alkylate an aromatic hydrocarbon, sulphonating the alkylated aromatic hydrocarbon and converting the resulting sulphonic acids into alkyl aryl sulphonates.  The starting material is a raffinate which boils above about 300 DEG  C., the thermal cracking of which is carried out for a few seconds at 500-560 DEG  C.  The C8-C18 fraction is preferably used for the preparation of the sulphuric acid alkyl ester salts, which is carried out at 15 DEG  C. with 98 per cent sulphuric acid, and the crude products are refined by extraction with, e.g., gasoline. The unconverted organic material is preferably freed from polymers, and the C10-C14 fraction is preferably used to alkylate, e.g. benzene or toluene, the alkylation product sulphonated and the acids so formed converted into the corresponding sulphonic acid salts.  The alkylation is preferably carried out using liquid hydrogen fluoride as a catalyst at 20-50 DEG  C., and the sulphonation step at 10-50 DEG  C. with 20 per cent oleum, neutralizing the free sulphuric acid with, e.g., sodium hydroxide. Specification 783,469 is referred to.
Patent GB-972934-A (GB)
Title: Shaped articles of polyoxymethylenes
Inventor: STIMPSON JAMES WALTER
IPC: C08L67/02
Filed: 1962-05-24
Abstract: Compositions for the production of shaped articles of polyoxymethylenes or copolyoxymethylenes having an enhanced affinity for dyestuffs comprise a metal-containing polymeric substance in which the metallic element is combined as an integral part of the structure of the polymeric substance.  The metal may be zinc, magnesium, calcium, aluminium or titanium. The polymeric substance may be a polyester, polyurethane, polycarbonate, polyamide, polyanhydride or mixture thereof, and may be prepared by reaction of a metal salt of a weak volatile acid with a polymer or the components used for making a polymer. The compositions may be formed into films, fibres, filaments, mouldings and extrusions.  In examples (I) zinc acetate, ethylene glycol, dimethyl terephthalate and dimethyl isophthalate are heated, and the product added a 99/1 copolymer of formaldehyde and ethylene oxide which is melt spun into filaments stretched and dyed; and (II) zinc acetate and 11-aminoundecanoic acid are heated, and the product added to a 99/1 copolymer of formaldehyde and ethylene oxide which is melt spun into filaments, stretched and dyed.ALSO:Shaped articles of compositions comprising polyoxymethylenes or copolyoxymethylenes and metal-containing polymeric substances in which the metallic element is combined on an integral part of the structure of the polymeric substance are dyed with disperse, mordant, basic and acid dyestuffs.  The metal may be zinc, magnesium, calcium, aluminium or titanium, and the polymeric substance a polyester, polyurethane, polycarbonate, polyamide, polyanhydride or mixture thereof.  The articles may be fibres, films, filaments, mouldings or extrusions.  In examples filaments melt spun from compositions comprising 99/1 copolymers of formaldehyde and ethylene oxide and the reaction products of (I) zinc acetate, ethylene glycol, dimethyl terephthalate and dimethyl isophthalate are dyed with mordant, disperse and basic dyestuffs; and of (II) zinc acetate and 11-aminoundecanoic acid are dyed with mordant, disperse, basic and acid dyestuffs.
Patent GB-139750-A (GB)
Title: Improvements in or relating to radiators for motor vehicles
IPC: F01P11/10
Filed: 1919-08-15
Abstract: 139,750. Chardard, J. B. D. L. March 3, 1919, [Convention date]. Plate apparatus.-The cooling-elements of motor-vehicle radiators are constituted by coaxial thin hollow plates a, b, c, of cylindrical, conical or paraboloidal form, the innermost element c being permanently connected as by soldering at c<1>, c<11> to the flat faces of the headers d, while the other elements are connected to the headers by pipes a<1>, a<11> having disconnectible joints to allow the elements to be detached. The plates may be made of copper. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. A wire may be coiled between the walls of the plates to provide a circuitous path for the water. Similar elements may be employed in a bath-water heater, as shown in Fig. 3, (Cancelled), the wire i being coiled between the walls g, h of the elements. The plate elements may also be used in domestic radiators through which an air current flows, and in other apparatus. This subject-matter does not appear in the Specification as accepted.
Patent GB-356361-A (GB)
IPC: H01H9/18
Filed: 1930-07-03
Abstract: 356,361. Indicators for switches. LULKI, A., 71, Kaiser-Allee, Friedenau, Berlin. July 3, 1930, No. 20210. Convention date, July 4, 1929. [Class 38 (v).] A lamp or gas-discharge tube for indicating the position of a flush wall switch in the dark is mounted in a casing b disposed near the switch casing a in the wall c. The two casings may be built together into the wall and then covered by a glass or other plate d or by two separate plates, and the plate opposite the lamp may have an aperture through which the lamp partially projects.
Patent GB-427545-A (GB)
Title: Improvements in rotary engines, pumps, and the like
IPC: F01C1/20
Filed: 1933-07-20
Abstract: 427,545. Rotary engines. FARESO, J., 37, Walmer Road, North Kensington, London. July 20, 1933, No. 20485. [Class 110 (ii)] A rotary engine or pump having a piston or pistons moving through an annular chamber, is provided with overlapping packing pieces 25, and centrifugal means, such as a weight 27, is employed to reduce the packing rubbing resistance on the casing bore. The weight is held by wires 28, and may be supported by a spring 29. The invention may be applied to engines of the hinged or rotary abutment types, or of the Root's blower kind. In the form shown in Fig. 1, the abutment is T-shaped in cross-section having lateral extensions 5a extending from the web 5. The abutment is raised by cams on the shaft 15, through push rods. In the form shown in Fig. 8 the rotors are connected to a shaft perpendicular to the rotor shafts, through bevel gearing. A valve is fitted to the working chamber which opens to atmosphere when a partial vacuum is formed in the chamber. Sealing rings 30, Fig. 3, are pressed against the sides of the rotor 1. A plate 8 is fitted to the abutment 5.
Patent GB-477178-A (GB)
Title: Improvements in wearing apparel
IPC: A41D27/20
Filed: 1936-07-24
Abstract: 477,178. Pockets for garments. JAMES & EDWARDES, Ltd., and MINNEY, F. P. July 24, 1936, No. 20496. [Class 141] A side or slant pocket for trousers is divided into a main pocket B and a safety pocket B<1> by a lining b<2>, the opening of the pocket B<1> being parallel to the opening b of the main pocket B, and therefore substantially vertical. The pocket B<1> is closed by a flap C having suitable fastening means such as the button c or a sliding-clasp fastener.
Patent GB-1070022-A (GB)
Title: The production of stoichiometric titanium and zirconium hydride powders
IPC: B22F9/02
Filed: 1964-12-16
Abstract: Metals and alloys are produced from Ti and Zr hydride powders (see Division C1) by dehydrogenating the hydride or mixture of hydrides, or mixture of hydride and a metal powder (e.g. ZrH2 and Mo), a mixture of hydride and a cermet (e.g. TiH2 and WC), e.g. at 500 DEG C. or above in vacuo, followed by sintering, e.g. at 1200 - 1250 DEG C. in vacuo.  The powders may be shaped prior to dehydrogenation.  A Ti body so produced was grown to a single crystal by annealing at 1250 DEG C.  A coating of Ti may be applied on steel by dispersing TiH2 with camphor in methanol, painting or spraying on the surface, and dehydrogenating and sintering in vacuo.ALSO:Ti or Zr hydride powder is produced by heating 99.9% Ti or 99.6% Zr with 99.999% H2, preferably at atm. pressure, followed by cooling and grinding, the metals having been degassed at reduced pressure, e.g. at 800 DEG  C. The H2 is purified by passage through a Pd alloy membrane at 450 DEG C., or through a Ti sponge layer at 800 DEG  C. or above, and the reaction tube is pre-baked in a stream of the pure H2.  Grinding may be effected in a mechanical agate mortar, and colloidal particles are collected by an electric precipitator.
Patent GB-1475391-A (GB)
Title: Method and apparatus for vacuum dehydration
IPC: F26B5/04
Filed: 1974-05-09
Abstract: 1475391 Freeze-drying A V GELDER 9 May 1974 20589/74 Heading F4G [Also in Division H5] A cell 20 for use in the vacuum dehydration of material comprises an assembly of spaced, parallel, electrically conductive plates 21 which are electrically interconnected and are arranged, in use, to heat material which is placed between adjacent plates. The plates each comprise a sheet 22 of a carbon coated plastics material having on each side thereof an insulating sheet 26, 27 and an outer metal plate 30, 31, the edges of the sheet 22 being provided with copper electrodes 28. The plates are connected mechanically and electrically by the rods with spacers holding the plates in the relative positions (Fig. 2, not shown). The assembly of plates 21 is housed in a perforate shield 57. A plurality of the aforementioned assembly and its corresponding shield are loaded onto a carrier which provides for electrical connection of the assemblies to a power source through rails in the base of an evacuable chamber (Figs. 7, 8, 9 not shown). The material is freeze dried under vacuum in the chamber.
Patent GB-754979-A (GB)
Title: Improvements in or relating to hot water supply systems
IPC: F24H9/12
Filed: 1954-07-15
Abstract: 754,979. Supply and delivery arrangements for hot water storage tanks. RUUD MANUFACTURING CO. July 15, 1954 [Jan. 28, 1954], No. 20670/54; Class 64(1). A unit 34 fixed to the back wall of a hot water heater storage tank 11 near its top contains a hot water passage 43 and a cold water passage 38 separated by a wall pierced by a small hole 47. Hot water passes from the tank through the inlet 36 and passage 38 to the outlet 39 which is connected to a hot water delivery pipe 40. Cold ' water passes from a supply pipe 41 through the inlet 42 and passage 43 to the outlet 45. The hole 47 prevents siphoning of hot water from the tank if the cold water supply pipe is drained through a valve V. The cold water passage is narrowed at 46 to equalize hot and cold water pressures at ends of hole 47, and so prevent leakage through it. The outlet 45 is connected to a vertical pipe 25 leading to an elbow piece 22 connected to the bottom of the tank. The outlet of the elbow piece is larger than its inlet to reduce the speed of the cold water entering the tank.
Patent GB-418775-A (GB)
Title: Improvements in or relating to the attachment of metal parts to electric insulators
IPC: H01B17/02
Filed: 1933-07-22
Abstract: 418,775. Insulators. CORNING GLASS WORKS, Walnut Street, Coming, New York, U.S.A.-(Assignees of Kates, W. A. ; 111, East 5th Street, Corning, New York, U.S.A.) July 22, 1933, No. 20714. Convention date, Aug. 30, 1932. [Class 36.] In a suspension insulator of the pin-and-cap type in which the pin 12 is formed with annular ridges 9 for transmitting the load carried by the pin to the fusible alloy filling 13 which secures the pin within the cavity of the insulator body 19, the ridges are graded in angularity so that more load is carried by the ridges adjacent the open end of the cavity than by those near the closed end. The alloy is retained within the cavity by annular or spiral ridges 24 formed on the cavity walls, the shear strength of the ridges 24 preferably being matched with that of the interengaging ridges 23 on the alloy filling. The cap 11 is secured to the insulator body 19 by an alloy filling 30 which is retained by an inclined shoulder 17 of the cap, the load on the insulator being communicated to the alloy filling 30 by annular ridges 21 on the outside of the insulator body. The angularity of the ridges 21 is preferably graded so that the upper ridges carry more load than the lower ones. The grading of the ridges 9, 21 on the pin and outside of the insulator body respectively is preferably such that the stresses in the insulator body due to the normal working load counteract the internal stresses set up during the cooling of the insulator parts after the casting in of the alloy fillings 13, 30. The cooling of the insulator is preferably controlled so that solidification of the filling 13 commences at the closed end of the cavity. The Specification as open to inspection under Sect. 91 comprises also the attachment of metal fittings to ceramic bodies other than insulators by the above method. This subject-matter does not appear in the Specification as accepted.
Patent GB-1218894-A (GB)
Title: Improvements in or relating to hinge covers
Inventor: RIDGWAY MARCUS RAYMOND
IPC: E05D11/00
Filed: 1969-04-23
Abstract: 1,218,894. Hinge cover. M. R. RIDGWAY. 18 Aug., 1969 [23 April, 1969], No. 20788/69. Heading E2F. A cover for a hinge comprises two resilient side panels 1, 2 bounding a longitudinal slot for a hinge and recessed at 4 to receive a pliable panel 5, at the inner surface of which may be provided a grease impregnated felt pad 6 covering the butt of the hinge. Panel 5 extends to the ends of panels 1 and 2 and is ripped therebetween. Panels 1 and 2 may be of polyvinyl chloride and panel 5 of plasticized polyvinyl chloride.
Patent GB-278847-A (GB)
Title: Improvements relating to the supporting of overhead conductors
IPC: H02G7/20
Filed: 1926-08-24
Abstract: 278,847. Siemens Bros. & Co., Ltd., and Poole, W. E. Aug. 24, 1926. Posts, attachments for; systems of supporting cables and conductors. - In high tension transmission systems, short circuiting by birds perching on the crossarms or conductors is prevented by inclining the cross-arms so as to make an angle of not less than 135‹ with the axis of the insulator. As shown, the conductors of a three phase transmission system are supported by the arms b, c, d attached to the pole a and bolts e and to each other by rivets f, the angle between the insulator axes and the arms being 150‹ so that the conductors are symmetrically arranged at the corners of an equilateral triangle. Preferably the crossarms are formed of angle, or inverted channel iron or other section or material with a broad upper edge so as not to afford a convenient foothold for birds. In systems in which insulators are suspended, the cross-arms are inclined downwards.
Patent GB-1310312-A (GB)
Title: Apparatus for continuous casting
IPC: B22D11/04
Filed: 1971-04-19
Abstract: 1310312 Continuous casting GENERAL MOTORS CORP 19 April 1971 [16 Feb 1970] 21039/71 Addition to 1307424 Heading BF3 In apparatus as described and claimed in Specification 1,307,424, zone 3 of the mould has longitudinal grooves 28, preferably equallyspaced, extending the length of the third mould portion 24 for the venting of gases downstream. The grooves 28 are 0À030 inch wide and 0À015 inch deep. At the inlet end of the mould portion 24, a length of the grooved graphite liner 26 may be replaced by a grooved sleeve of Mo or a Mobased alloy, e.g. containing 5% Ti and 0À08% Zr.