baber/WOPTO huggingface dataset:
Patent GB-699938-A (GB)
Title: A device for the adjustable connection of lagging members for mine shafts with one another
IPC: E21D7/00
Filed: 1951-10-15
Abstract: 699,938. Bolting; timber connections. BRAND, J., and RITCHIE, C. Oct. 15, 1951 [Oct. 14, 1950; Oct. 16, 1950; Oct. 16, 1950; Oct. 16, 1950], No. 23967/51. Classes 89(i) and 89(ii) A bolt i particularly for connecting lagging members for mines, e.g. a timber h and a metal section member g, passes through a slot d in a crown member a fitting in a bore in one member e.g. the member g and having a ledge f which engages the face of this member. The slot d extends along a radius of the crown which is adapted to be turned until the slot registers with the hole in the timber h, the parts there being seamed by bolting a plate e having serrations against serrations on ledges c<SP>1</SP>, c<SP>2</SP> arranged on each side of the slot d. A ring of teeth b on the crown a bite into the timber h or when two steel parts are to be connected the teeth are omitted. To increase the range of adjustment several bolt holes may be provided within the area covered by the slot d when the crown is turned. To permit fine adjustment the serrations on ledges c<SP>1</SP>, c<SP>2</SP> are staggered relative to one another and the serrations on the plate e are similarly staggered in order that by turning the plate through 180 degrees relative to the crown an adjustment of half a pitch is obtained.
Patent GB-731950-A (GB)
Title: Improvements in or relating to high-frequency generators for dielectric heating
IPC: H05B6/50
Filed: 1952-09-24
Abstract: 731,950. Automatic current control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 24, 1952 [Sept. 27, 1951; May 14, 1952], No. 23972/52. Class 38 (4). [Also in Group XL (c)] In an H.F. oscillator for dielectric heating the cathode is connected to the intermediate point of a capacitative voltage divider 33, 30 connected, through further capacity 17, if necessary, between the anode and control grid, and the voltage divider is shunted by a power controlling and tuning condenser 15 and by a frequency range determining inductance 16, in series with the capacitative load 11. Further one or other, e.g. capacitor 30, of the voltage divider is variable and may be automatically controlled by grid current flow energizing an electromagnet 26 controlled by leaf-spring 29, as described in Specification 705,788, so that the grid excitation is constant, e.g. the maximum permissible, throughout the range of power control by capacitor 15. Preferably the capacitors 30, 33 are small in relation to capacitor 15 and capacitor 15 is mechanically coupled to the other voltage divider capacitor 33 so that both capacities 15, 33 vary in the same sense, thereby producing the main control effect on the grid excitation for variations in output produced by capacitor 15. In a modification the capacitor 15 is ganged with both the voltagedivider capacitors 33, 30 so that all vary in the same sense, the cathode and intermediate point are earthed, and grid current varies a small further capacitor in shunt with the capacitor 30. The control systems maintain maximum output for variations in supply voltage.
Patent GB-1496623-A (GB)
Title: Moulds for continuously casting steel
IPC: B22D11/059
Filed: 1976-06-10
Abstract: 1496623 Continuous casting SUMITOMO METAL INDUSTRIES Ltd and SATOSEN CO Ltd 10 June 1976 [13 June 1975 27 Oct 1975 (2)] 24008/76 Heading B3F [Also in Division C7] A mould of copper or copper alloy (e.g. containing 1% Cr), for continuously casting low- or high-carbon, or stainless-steel, has a lining (e.g. 30-1900 Á thick) of Ni and/or Co on which is formed another lining (e.g. 10-100 Á thick) of Ni and/or Co plus some P and/or B. The total thickness of the two layers is 50-2000 Á. In the second lining there may be 4-20% by weight P, 2-15% by weight B. The first lining may be applied by electroless plating or electroplating (see Division C7). To avoid a surface compatible with the steel and which might cause skin damage of the cast strand, a final oxide lining at least 0À001 Á thick may be formed, by anodic or by gas flame oxidation. Alternatively, a Cr lining 0À1 to 10 Á thick may be applied electrolytically. Before the mould is degreased and washed for application of the linings, it is masked with a PVC coating except where it is to be contacted by molten steel.
Patent GB-437985-A (GB)
Title: Improvements in and relating to pistons and the manufacture thereof
IPC: F16J1/00
Filed: 1934-08-21
Abstract: 437,985. Casting composite pistons. BERRY, J., 121, Osborne Terrace, Darwen, Lancashire. Aug. 21, 1934, No. 24046. [Class 83 (i)] [See also Group XXVI] Moulds.-In die-casting a piston for an internal-combustion engine &c. a number of channel-section split rings a, Fig. 3, separated by paper or like washers c are placed in the mould, these rings serving as piston-rings in the cylinder or being replaced by separately produced piston-rings. A single split and grooved ring b, Fig. 1, to guide the skirt of the piston, may also be arranged in the multipart mould of which parts A<1>, A<2>, and A<3> only are shown but which is adapted to form piston-walls d with bearings d<3> and gaps d<4> for oil. In place of the ring b two thin plates e, Fig. 4, of nitrided steel or other metal with perforated or serrated edges e<1> may be cast in. The rings a and b may be of cast iron or nitrided steel and the body of the piston of aluminium alloy.
Patent GB-226620-A (GB)
Title: Improvements in or relating to compressible strip packing for engines and the like
IPC: F16J15/22
Filed: 1923-09-27
Abstract: 226,620. Beldam, W. R. Sept. 27, 1923. Packing, non-metallic; compound metallic and non-metallic. - Packing of the type comprising alternate layers of rubber and fabric, diagonally arranged, is made by folding a compound sheet of rubber and fabric upon itself, as shown, in folds of varying width. The folding may be commenced at an apex of the section, or the sheet may be folded from the middle in both directions. Alternatively, separate parts of triangular section may be folded and secured base to base. The packing after folding is compressed and the folds secured by vulcanizing or otherwise. Wire or strips of metal may be incorporated in the fabric.
Patent GB-459461-A (GB)
Title: Improvements in collapsible buildings
IPC: A01G9/16
Filed: 1935-08-30
Abstract: 459,461. Horticultural buildings. CAMPBELL, G. G., Barr Shop, Galston, Ayrshire. Aug. 30, 1935, No. 24218. [Class 20 (i)] Relates to collapsable buildings, such as greenhouses, of the type comprising a plurality of upright members inserted in the ground, tie-members connecting the uprights, and horizontal ridge-members extending between midupright members and supporting the roofing. The horizontal ridge-members are of inverted T-section, the flanges 6 of which support he roofing elements 5, and the tie-members 3 are formed with hook-like ends 3<a>, 3b for engagement with bolts 11, 12, which connect the spaced bars forming the upright members. The bent-down ends 4<a> of the ridge-members are also slotted in order to engage the bolts 11 and the lower ends of the roof elements 5 rest upon wooden gutters 7 placed between the end uprights.
Patent GB-502073-A (GB)
Title: Improved electrocardiograph
IPC: A61B5/0432
Filed: 1937-09-13
Abstract: 502,073. Oscillographs. BOTH, E. T. Sept. 13, 1937, No. 24241/38. Divided out of 502,043. [Class 37] An electrocardiograph in which the amplified currents are fed to an electromechanical recorder provided with a scriber that produces a fine trace upon a motor driven cardiogram disc, comprises an electromagnetic unit carrying the scriber, the unit being slidable radially of the cardiogram disc ; and a switch for changing the.patient leads so that different sets of curves can be inscribed at different points from the centre of the disc. The moving-coil unit 20, Fig. 3, is moved radially of the disc 1 on rods 50 ... 52 by means of a cam 55 operated by knob 57 that also controls a switch 58 to connect the different patient leads into circuit. A microscope 60 having a grating of radial lines is provided for viewing the traces which are illuminated by lamp 68. Calibration is effected by applying small voltage to the amplifier input grid through switch position 90, 91, Fig. 2, adjustment being obtained by intermittently connecting resistors R2, R3 in the filament circuit through cam-operated switch 89, and also by varying the screen volts at R.
Patent GB-971617-A (GB)
Title: Process and arrangement for the protection of glass during the thermal treatment thereof
IPC: C03C21/00
Filed: 1963-06-18
Abstract: Glass is protected during heat treatment, particularly fire polishing, effected when the glass is supported on a bath of molten material and covered by a molten layer of less dense material, by applying a continuous electric potential difference between the bath and layer. The denser material is formed of one or more of the metals tin, lead, zinc and copper, while the less dense material is a salt, preferably a halide, of the alkali or alkaline earth metals. The potential difference is applied by means of a plate, which can be flat, inclined, or curved, and plain or perforated, immersed in the upper layer, and a series of electrodes in the lower layer, and means are provided whereby either layer can be rendered positive relative to the other.  The treatment is carried out in a tank of refractory material formed with slots in opposite walls for the entry and exit of the glass, and provided with rollers for holding the glass on the surface of the denser material.
Patent GB-699277-A (GB)
Title: Improvements in apparatus for cleaning floors and other surfaces
Inventor: TURK JACK
IPC: A47L9/06
Filed: 1951-10-18
Abstract: 699,277. Squeegees. ROLLNICK & GORDON, Ltd. March 21, 1952 [Oct. 18, 1951], No. 24315/51. Class 19. In floor cleaning apparatus comprising a suction squeegee and wherein the member carrying the squeegee and suction nozzle also carries a cleaning brush, the brush e is carried by a member e' slidable on the member, shown as a tube b, carrying the squeegee d and nozzle c whereby the squeegee and nozzle are rendered inoperative when the brush is rendered operative and vice versa. The brush e is hinged to its carrying member e<SP>1</SP> and in its operative position is pressed closely against the nozzle by a spring i.
Patent GB-953500-A (GB)
Title: Process for the production of linalool
Filed: 1962-06-26
Abstract: Linalool is prepared by pyrolizing pinane-2-ol at a temperature in the range 500-650 DEG C. in the absence of protons or Lewis acids. Different isomers of linalool are obtained depending on the isomer of pinane-2-ol used as starting material. In addition to linalool the product may contain 2, 4-dimethyl-octadi-2, 7-en-4-ol, 2, 2-dimethyl-3-ethyl cyclobutylmethyl ketone, a -terpineol and 1, 2-dimethyl-3-iso propenyl-cyclo-1-pentanol. The process is preferably carried out in a stainless steel tube and also in the presence of a base, for example, pyridine or dimethyl aniline.
Patent GB-1477249-A (GB)
Title: Microwave oscillator
IPC: H03B9/14
Filed: 1975-06-06
Abstract: 1477249 Microwave oscillators VARIAN ASSOCIATES Inc 6 June 1975 [17 June 1974] 24514/75 Headings H3R and H3T A microwave oscillator comprises two Gunn, Impatt, tunnel or avalanche diodes 21, 22 feeding a YIG sphere resonator 15 at least approximately in push-pull. The output from the sphere is picked up by a strip 23. The resonant frequency of sphere 15 is varied by varying the magnetic field applied by coils 16. For maximum power and second harmonic rejection, diodes 21, 22 are identical and symmetrically located about sphere 15. For increased bandwidth at the expense of some power and second harmonic rejection diode 21 is made to tend to oscillate a little below the frequency of diode 22 and is located further from the sphere 15. An r.f. by-pass capacitor 28 is connected to the middle of the loop 19 which couples the diodes 21, 22 to the sphere 15.
Patent GB-746270-A (GB)
Title: Improvements in earthing rods
Inventor: PORTER FRANK
IPC: H01R4/66
Filed: 1952-12-31
Abstract: 746,270. Earthing rods. PORTER ELECTRICAL PRODUCTS, Ltd. Dec. 29, 1953 [Dec. 31, 1952], No. 24690/55. Divided out of 746,180. Class 36. An earthing rod 1 is D-shaped in cross-section and has a point 2 at one end which may be provided on an initially separate tip 3 which is attached to the rod 1 by a screw 4. An iron driving block 5 may be clamped to the rod and moved along it as the rod is driven into the earth. To connect a flat conductor to the rod, a clamp 10, constructed as disclosed in the Specification 746,180, is secured to the rod. Specifications 565,434 and 576,491 are referred to.
Patent GB-723611-A (GB)
Title: Improvements in or relating to the manufacture of sodium carbonate
IPC: C01D7/18
Filed: 1952-10-02
Abstract: In the manufacture of sodium carbonate by the ammonia-soda process, wet sodium bicarbonate crystals are transported in contact with a surface of resinous organic material of non-polar hydrophobic character.  The resinous organic material preferably has a dielectric constant higher than that of said crystals and a coefficient of sliding friction lower than that of said crystals. A number of classes of resinous material are specified. Particular resins specified are: bitumen, chlorinated paraffin wax, cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, polyvinyl chloride, polyvinyl acetate, polyvinyl butyral, polyvinyl chloride, polyvinylidene chloride, polyethylene, polystyrene, polymethylmethacrylate, acrylonitrile, butadiene copolymers, butadiene-styrene copolymers, and polytetrafluoroethylene.  The resins may be used as coatings or materials of construction for endless-belt conveyers, feed valve mechanism and mixers, centrifuge baskets, doctor blades of filter wheels, slides and chutes, filter cloths and storage containers.ALSO:Feed valve mechanism and mixers employed in handling wet sodium bicarbonate crystals produced as an intermediate in the manufacture of sodium carbonate by the ammonia soda process are constructed of, or coated with, a resinous organic material of non-polar hydrophobic character, preferably having a dielectric constant higher than that of said crystals and a coefficient of sliding friction lower than that of said crystals.  A coating of polytetrafluoroethylene is specified.
Patent GB-1254875-A (GB)
Title: A process for the production of silicon and apparatus for producing an optically readable pattern corresponding to a magnetically recorded pattern
Inventor: MCKEE FREDERICK BRIAN
IPC: G03G19/00
Filed: 1968-05-24
Abstract: 1,254,875. Record tapes. MARCONI CO. Ltd. 23 April, 1969 [24 May, 1968], No 24844/68. Heading G4M. [Also in Divisions B6 and G2] Apparatus for producing an optically readable pattern corresponding to a magnetically recorded pattern comprises means for coating with photosensitive material a tape 1 on which magnetically recorded information is stored, means 4, 5 for causing particles of magnetic material to adhere to the magnetized portions of the tape so as to mask these portions, a light source 7 for illuminating the masked tape to cause a chemical change in the unmasked photosensitive material and an arrangement 9, 10, 11 for removing either the chemically changed or unchanged photosensitive material from the tape so as to leave a pattern thereon corresponding to the magnetic signals originally stored on the tape. A layer of photo-resist is coated on the tape, and the magnetic particles may be Fe 3 O 4  suspended in water. A polarizing field produced by a. coil 5 -assists in increasing edge contrast and resolution. Surface cleaners 3, 8 and dryers 6, 12 may be provided. An etching path 10 removes photosensitive material down to a transparent base to produce a pattern optically readable by transmission, alternatively the pattern may be read off by optical reflection by using a metallic tape or coating the tape with Cr or A1 prior to the photoresist.
Patent GB-938695-A (GB)
Title: Sulphonating process
Filed: 1960-07-16
Abstract: Hydrocarbons, fatty acids and fatty alcohols are monosulphonated batchwise by a process comprising sulphonating the batch of sulphonatable material with an undivided amount of SO3-bearing convertor gas the SO3 content of which is determined by producing said amount of gas by burning sulphur and converting the SO2 to SO3 wherein the amount of sulphur burned is sufficient only to provide on conversion of the SO2, substantially the stoichiometric amount of SO3 for the mono sulphonation of the batch to be sulphonated.  The dosing of the sulphur feed to the burners may be effected by a positive displacement closing pump.  Examples describe the mono sulphonation of dodecyl benzene, a fatty alcohol of average M.W.200 and a petroleum fraction containing sulphonatable material of M.W.120.
Patent GB-1109425-A (GB)
Title: Polymeric coating of aspirin
Inventor: TANNER DAVID WILLIAMSON
IPC: A61K9/16
Filed: 1964-06-16
Abstract: A coated aspirin product is obtained by causing surface polymerisation of aspirin in either tablet or crystallite form, e.g. by heating, or by coating aspirin tablets or crystallites by applying thereto a solution of the aspirin polymer and removing the solvent.
Patent GB-933660-A (GB)
Title: Temperature control in regeneration cycle of multi-bed dehydrogenation process
IPC: C07C5/333
Filed: 1961-07-10
Abstract: In the dehydrogenation of hydrocarbons in a plurality of reactors of fixed-bed catalyst employing cyclic regeneration in which air is supplied to a plurality of the reactors simultaneously which air is subject to temperature stratification, fuel is added to the air passed to those reactors receiving cooler portions of air, the amount of fuel being controlled in accordance with the temperature of the catalyst to maintain the temperature at the desired level.  The fuel may be a refinery or natural gas added in amounts below the lower flammability limit, preferably below 1% by volume of the air, so that combustion occurs on the catalyst.  The conversion of butane to butadiene is referred to.
Patent GB-1039295-A (GB)
Title: Polytetrafluoroethylene compositions
IPC: C08L27/18
Filed: 1962-06-29
Abstract: Compositions for lubricating contacting surfaces comprise a solution or dispersion of polytetrafluoroethylene sintering at 307 DEG  to 327 DEG  C. in a liquid fluoro-organic compound having a solubility parameter of less than 7 and which can be evaporated at atmospheric pressure to leave no residue at a temperature below the sintering temperature of the polytetrafluoro-thylene. The liquid medium is preferably capable of being readily evaporated at room temperature. Specified fluoro compounds are monochlorodifluoroacetic acid, trichlorotri-fluoroacetone, perfluoroalkanes, perfluorocyclo-alkanes and fluorinated kerosene. Inert diluents, e.g. chlorinated hydrocarbons, ketones, nitro-alkanes, dimethylformamide and tetrahydrofuran, may also be present.ALSO:Metal and ceramic surfaces may be coated with compositions comprising polytetrafluoroethylene sintering in the range 307 to 327 DEG C. dispersed or dissolved in a liquid fluoro organic compound having a solubility parameter of less than 7 and which can be evaporated at atmospheric pressure to leave no residue at a temperature below the sintering point of the polytetrafluoroethylene.  Metal surfaces may be pretreated to improve adhesion, e.g. by scratching with a wire brush or treating with an aqueous solution of a salt of a transition metal, e.g. copper, nickel, iron, cobalt, manganese or chromium.  Specified fluoro compounds are monochlorodifluoroacetic acid, trichlorotrifluoroacetone, perfluoroalkanes, perfluorocycloalkanes and fluorinated kerosene; and diluents, e.g. chlorinated hydrocarbons, ketones, nitroalkanes, dimethylformamide and tetrahydrofuran, may also be present.  In examples (1) an aluminium sheet is treated with copper nitrate solution and coated with a composition comprising polytetrafluoroethylene, trichlorotrifluoroacetone and trichloroethylene; and (2) a ceramic surface is coated with a composition comprising tetrafluoroethylene, monochlorodifluoroacetic acid and methyl ethyl ketone.
Patent GB-1500396-A (GB)
Title: Diesters
IPC: C07C69/675
Filed: 1975-06-11
Abstract: 1500396 Diesters SANDOZ Ltd 11 June 1975 [12 June 1974] 25050/75 Heading C2C Diesters of formula where R<SP>1</SP> is alkyl or cycloalkyl and R is an alkyl (1-6C) e.g. methyl or ethyl are prepared by oxidizing a compound with nitric acid. An excess of 98-100% acid, at 10-50‹ C. is preferred. Examples describe the preparation of isopropyl tartronic acid diethyl ester from isopropylmalonic acid diethyl ester. Methyl, ethyl, n-propyl, n-butyl, isobutyl and sec.butyl tartronic diethyl esters are mentioned.
Patent GB-299160-A (GB)
Title: Improvements in or relating to dolly or washing tubs
IPC: D06F1/00
Filed: 1927-09-23
Abstract: 299,160. Pickford, W. E. Sept. 23, 1927. Feet.-Substantially inelastic knobs, lugs or other wear-resisting members 2 are fitted to the base or to the flanged lower rim 1 of a dolly or wash-tub. The knobs may be semispherical or L-shaped, or, as shown, U- or J-shaped and may be secured by brazing, welding, rivetting or sweating by galvanizing.
Patent GB-652717-A (GB)
Title: Improvements in circuit arrangements for generating frequency modulated or phase modulated oscillations
IPC: H03C3/09
Filed: 1948-09-27
Abstract: 652,717. Automatic frequency and phase control systems. PHILIPS ELECTRICAL, Ltd., BAILEY, C. E. G., and PAUL, D. H. Sept. 27, 1948, No. 25143. Divided out of 663,619, [Group XL (c)]. [Class 38 (iv)] [Also in Group XL (c)] In a frequency or phase-modulation transmitter, the signal is modulated on a mediumfrequency source, and the main high-frequency oscillator has its output mixed with that of a stable oscillator to produce a beat of substantially the same medium frequency. The two medium frequencies are applied to a phasecomparing device, the output from which through a low-pass filter, controls the frequency of the main oscillator. As shown, the signal 8 modulates the frequency of the mediumfrequency source 6 by reactance valve 7. The main transmitting oscillator 1 is connected to an input grid of a heptode mixer valve 3, the other input of which is fed from a stable oscillator 4. The beat output is compared in phase with that of the source 6 in a device 5, and the resultant is passed through a low-pass filter 11 to the control grid of a reactance valve 2 to frequencymodulate the main oscillator 1. In this way, the drift in mean frequency of the wave sent out from the terminals 10 is no greater than the drift of the medium frequency source 6.
Patent GB-534626-A (GB)
Title: Improvements in or relating to two-stroke internal-combustion engines having cylinders arranged parallel to the driving shaft
IPC: F02B25/00
Filed: 1939-09-07
Abstract: 534,626. Two-stroke engines; valves. WOODMANSEY, A. C. Sept. 7, 1939, No. 25185. [Classes 7 (ii) and 7 (vi)] In an engine using swash-plate or other driving mechanism and having parallel cylinders, the combustion chambers and the pump spaces at the front ends of the cylinders, are cross-connected the whole of the distribution being controlled by a rotary valve. The pump spacers, two of which are shown, have inlet and transfer ports e, g and the combustion chambers each have a common admission and exhaust port b or g. The centre valve has an exhaust passage x, a pump admission passage y and a transfer passage d. Specification 453,331 is referred to.