baber/WOPTO huggingface dataset:
Patent GB-369258-A (GB)
Title: Improvements in or relating to the manufacture of steels and alloy steels
IPC: C21C5/04
Filed: 1930-09-15
Abstract: In a process for the production of steel in the basic open hearth furnace, a charge containing 1,6 to 2,4 per cent of manganese is smelted to produce a steel containing 0,8-1,2 per cent of manganese and then the subsequent oxidation is carried out more rapidly than usual, e.g. for a period not exceeding one-half the normal period so as to transfer the bulk of the manganese to the slag.  Basic compounds, such as lime, are then added to the bath and the temperature of the melt is increased to at least 1600 DEG  C. so as to transfer the manganese in the slag continuously into the bath. This temperature is maintained for a comparatively long time e.g. 1 1/2 hours, periodical analyses of the content of the bath being made to ensure that the manganese content of the melt is increasing and that therefore the temperature of the bath is being maintained.  The heating is continued until the desired carbon content of the steel is reached, and the metal is then tapped.  Additions of alloy constituents such as chromium, molybdenum, vanadium, titanium or tungsten may be made to the bath either in the furnace, during the tapping off or in the pan.  Alloy steels containing 0,4 per cent of chromium or 0,45 of molybdenum are referred to.
Patent GB-1018706-A (GB)
Title: Scaffolding or the like structures
Inventor: BEEDHAM JACK HECTOR
IPC: E04G1/15
Filed: 1963-07-11
Abstract: 1,018,706. Scaffolding. SCAFFOLDING (GREAT BRITAIN) Ltd. July 8, 1964 [July 11, 1963], No. 27558/63. Heading E1S. The ends of two ledgers are formed to engage with opposite sides of horizontal scaffold tube with the ledgers in line with each other, the ends having sockets formed by bending an oblique parallelogram-shaped plate 2 about its shorter diagonal.
Patent GB-1400614-A (GB)
Title: Method and apparatus for providing signals representing  the rotational speed and instantaneous angular position  of an internal combustion engine
IPC: G01P3/488
Filed: 1972-06-13
Abstract: 1400614 Measuring speed; angular position electrically REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 13 June 1972 [14 June 1971 25 Feb 1972] 27632/72 Heading G1N The angular speed and instantaneous position of an I.C. engine are determined by generating two pulse trains corresponding to the passage of flywheel teeth past a sensor 3 and boss teeth 5 past sensors 4 respectively and comparing one of the pulse trains with a reference frequency. The engine position is determined from the number of flywheel pulses (each corresponding to 360‹/n of rotation with n flywheel teeth) after a boss pulse which defines a datum position. The pulse trains are shaped at 6 and compared in counter 8 with a clock generated reference frequency 7. The comparison may be made either by counting reference pulses during one flywheel or boss pulse period (reference # maximum tooth pulse frequency) or by counting flywheel or boss pulses in one reference period (reference # minimum boss pulse frequency). The measured values may be fed to a computer for ignition and fuel injection control. The flywheel may have q sensors each spaced by distances of p + 1/q tooth spacings (p=integer) the pulse trains being combined to give a resolution of 360‹/nq Each tooth sensor preferably comprises a high frequency signal generator inductively coupled with the flywheel teeth so that the generator is inhibited during the passage of a tooth. The resulting signals are converted to a pulse train using a monostable multi-vibrator, the astable period of which is greater than the period of the oscillations.
Patent GB-894481-A (GB)
Title: A method and device for reinforcing and locating the coils of electric machines
IPC: H02K3/50
Filed: 1960-08-10
Abstract: 894,481. End windings for dynamo-electric machines. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Aug. 10, 1960 [Aug. 12, 1959], No. 27708/60. Class 35. To reinforce and locate the overhangs of coils of an electric machine 1, a flexible insulating tube 4, closed at one end, is inserted into the space 5 inside the coil heads 3, which lie between supports 8 and 9, and filled under pressure with a plastic hardening insulating composition 6, such as " Araldite " (Registered Trade Mark), mixed with powdered mica. A small wedge 7 of solid material may be driven into the insulating composition 6.
Patent GB-277109-A (GB)
Abstract: 277,109. I. G. Farbenindustrie Akt.- Ges., (formerly Badische Anilin & Soda Fabrik), Schmidt, R. E., and Berliner, R. June 10, 1926. Addition to 244,462. Formaldehyde-aminoanthraquinone condensation products.-The process of the parent Specification, according to which stable condensation products are, produced from 4-substituted-1- aminoanthraquinones or their derivatives, is carried out in sulphuric acid solution in presence of a metallic reducing agent such as copper, aluminium, or zinc. The reaction now takes place even in the cold and is applicable to 1-aminoanthraquinone and its derivatives generally; further, sulphuric acid of 90 per cent strength can be used. Examples are given of the condensation of 1-aminoanthraquinone, 1-amino-4-oxyanthraquinone,' and 1-amino-2-brom-4-oxyanthraquinone with paraformaldehyde or trioxymethylene in sulphuric acid using copper or zinc powder as reducing agent.
Patent GB-1181666-A (GB)
Title: Mud Flaps
Inventor: SARGINSON JOHN FRANCIS
IPC: B62D25/18
Filed: 1966-06-22
Abstract: 1,181,666. Road vehicle mud flaps. PIRELLI Ltd. 28 April, 1967 [22 June, 1966], No. 27807/66. Heading B7J. A mud flap comprises a sheet of elastomer (examples given) having a single marginal portion (by which the flap is fixed directly to a road vehicle, without employing any other device for strengthening or mounting) in which the elastomer is cured to a greater degree of hardness than the rest of the sheet, the single marginal portion being chemically bonded to the rest of the sheet. Holes may be formed in the single marginal portion during vulcanization or curing. The sheet may comprise two different elastomers bonded together by curing.
Patent GB-1505429-A (GB)
Title: Esterification process
IPC: C07D315/00
Filed: 1976-07-05
Abstract: 1505429 Esters and lactones by esterification SUMITOMO CHEMICAL CO Ltd 5 July 1976 [27 Sept 1975 13 Jan 1976] 27823/76 Heading C2C Carboxylic esters or lactones are made by reacting a carboxylic acid with an alcohol, or a hydroxy acid in the presence of a 1-substituted- 2-halopyridinium salt or a 1-substituted-2- haloquinolinium salt and a hydrogen halide acceptor optionally in the presence of an anhydrous organic solvent.
Patent GB-1506526-A (GB)
Title: Channel indicating apparatus for television receivers
IPC: H04N5/64
Filed: 1975-07-02
Abstract: 1506526 Channel indicator for receivers SONY CORP 2 July 1975 [12 July 1974] 27925/75 Heading H3Q Channel indicating plates 35 are attached to the rear of a cover 4 so as to be seen when the cover is closed over a space 8 in a T.V. cabinet 2 in which tuning knobs 21a of variable resistors are mounted. The cover 4 can be hinged as at 10 or slid to allow a different indicating plate 35 to be inserted from the rear of the cover. The ends (35a, 35b, Figs. 4, 8 and 9, not shown) of the plate 35, which can be of a resilient ABS resin, engage in slits 41 in a transparent strip 12 arranged behind channel indicating windows 5 in the cover 4. A lamp or neon 16 illuminates the channel plate selected by pressing an associated channel selection button 6 which has a movable V-shaped contact 6a and a fixed contact 30. On releasing a selected button 6 the switch 6a, 30 is returned to its open position by spring contact 28. The state of the channel selection is electrically maintained and the associated lamp 16 remains on. Each channel selecting resistor 21 has a channel indicator 23 and an associated band switch 22 which can be operated by a knob 22a to VHF or UHF positions.
Patent GB-1428494-A (GB)
Title: Sodium vapour lamp having starting means
IPC: H01J61/54
Filed: 1973-06-12
Abstract: 1428494 Gas discharge lamps GTE SYLVANIA Inc 12 June 1973 [26 June 1972] 28007/73 Heading H1D A high-pressure sodium vapour discharge lamp comprises a glass envelope 1 containing an alumina arc tube 8 filled with sodium, mercury and argon or xenon and having electrodes 13, 14 sealed in the ends, a starting heater 20 adjacent the arc tube and extending substantially along the length thereof, each end of the heater being connected to the electrode at the other end of the arc tube and a thermal switch 24 which opens to disconnect the heater when the lamp has been in operation for a certain time. By connecting the heater to the opposite ends of the tube a high ignition field is produced around each electrode which supplements the action of the heater. Instead of winding the heater around the tube 8 it can be wound on an insulating rod mounted parallel to the arc tube.
Patent GB-1143397-A (GB)
Title: Improvements relating to cooking stoves
Inventor: BRANDON GEOFFREY EDWARD
IPC: F24C15/18
Filed: 1965-07-02
Abstract: 1,143,397. Hot plate stoves. SIMPLEX ELECTRIC CO. Ltd. 22 June, 1966 [2 July, 1965], No. 28025/65. Heading F4W. [Also in Division H5] In a cooking stove, tubular sheathed electrical heating elements of hot-plate units 28, 30 are supported on openwork supports 26, 27, the drip tray beneath the elements being sufficiently spaced therefrom to allow cleaning of the drip tray while the elements are still hot. The openwork supports 26, 27 are supported by flanges of bars 23 of inverted truncated V-shaped crosssection. The walls of the stove are hollow, the electrical connections to the heating elements and the control devices therefor being located within the hollow interior, the cover to the hollow interior comprising a removable inverted channel-shaped member (16, Fig. 2) which affords a water-tight seal. The operating knobs 34 of the control devices are located above the channel-shaped member and are protected against accidental damage during removal of cooking utensils by a raised inner margin 17.
Patent GB-1532664-A (GB)
Title: Thermally stable silica
IPC: C03C13/00
Filed: 1976-07-06
Abstract: 1532664 Thermally stable silica BAYER AG 6 July 1976 [10 July 1975] 28075/76 Headings C1A and C1M X-ray amorphous silica containing 0À05-20% Cr 2 O 3  and/or Mn 2 O 3  has a high thermal stability and a controlled tendency to cristobalite formation up to a final crystallite size of 100-500 Š which is stable at least up to 1400‹ C., and is free of alkali metal and alkaline earth metal oxides. Fibres of such a material are made by spinning a decationized SiO 2  sol or hydrolysed silicic acid ester solution, containing no alkali metal or alkaline earth metal compounds and 0À05-20% of Cr 2 O 3  and/or Mn 2 O 3  in the presence of a high molecular weight filament forming substance (e.g.) C, to C 4  alkylene oxides, polyvinyl-alcohols, -acetates, -pyrrolidone, or -butyral, polymethyl methacrylate, cellulose derivatives and/or polyacrylamide) followed by heat treatment at up to 1000‹ C. The additive oxides may be added in the form of carboxylates (e.g. formates, acetates, oxalates, tartrates and/or citrates).
Patent GB-519598-A (GB)
Title: A loom change box control motion
IPC: D03D43/00
Filed: 1938-09-28
Abstract: 519,598. Looms. BLACKBURN LOOM & WEAVING MACHINERY MAKING CO., Ltd., and WATSON, E. Sept. 28, 1938, No. 28166. [Class 142 (iii)] Change-box motions.-Each three-armed lever K<2> which is connected with the mechanism for rotating or raising and lowering a shuttle box is moved in one direction by a cam M and in the other direction by a spring k. The latter motion is prevented by a catch h' when the corresponding feeler pin h' does not drop into a hole in the paper roll or band A. A projection J on the cam shaft D engages one arm of each feeler lever H to raise the pins h', and a second projection E through the toothed wheel C advances the paper pattern A.
Patent GB-519134-A (GB)
Title: New or improved toy ladder and method of making the same
IPC: A01K31/06
Filed: 1938-09-28
Abstract: 519,134. Toy ladders for birdcages. GLEDHILL, N. R., and GLEDHILL, M. Sept. 28, 1938, No. 28170. [Class 5 (ii)] [Also in Group XXII] A toy ladder particularly for use in cages for budgerigars comprises metal strips a having spaced openings a' for thermoplastic resin or wire rungs b secured by forming indentations c, the strips being twisted at the end to form hooks a'.
Patent GB-601784-A (GB)
Title: Improvements in or relating to the manufacture of road tar
IPC: C08L95/00
Filed: 1945-10-25
Abstract: A non-embrittling road tar is made by adding a fatty acid pitch, for example stearine pitch, and a petroleum oil in the range of oil from gas oil to heavy fuel oil according to the rate of setting required, to a road tar which conforms to British Standard Specifications for Type "A," "B" and "C" road tars. In an example to obtain a road tar of viscosity 60-70 secs. at 60 degrees C., a pitch is cut back to a viscosity of 80-90 secs. at 30 degrees C. and to 100 parts by weight of the cut-back tar, 5 parts by weight of stearine pitch and 10 parts by weight of fuel oil are added.  Specifications 351,023, [Group XII], and 465,589, [Group III], are referred to.
Patent GB-423379-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04D29/22
Filed: 1933-10-13
Abstract: 423,379. Centrifugal pumps. ROTOPLUNGE PUMP CO., Ltd., and SMITH, C. LAKIN-, 58, Victoria Street, London. Oct. 13, 1933, No. 28338. [Class 110 (i)] An impeller comprises curved converging passages C<7> with tangential extremities which terminate in sheet metal hoods C<8>. The impeller is contained in a recess and discharges into pockets formed in the recess periphery.
Patent GB-623003-A (GB)
Title: Clutches actuated by centrifugal pressure of a liquid
IPC: F16D43/284
Filed: 1945-10-26
Abstract: 623,003. Friction clutches. MERCURY CLUTCH CORPORATION. Oct. 26, 1945, No. 28371. Convention date, Nov. 11, 1944. [Class 80 (ii)] [Also in Group XXVI] In a clutch actuated by the centrifugal pressure of a rotating body of mercury or other heavy liquid, clutch operation is effected by initiating or suppressing liquid circulation between integral pump and pressure chambers, rotating with the driving member, so as to cause an operative piston between the chambers and rotating therewith to move axially relative thereto. The liquid circulation is initiated and suppressed by the selective operation of pump means comprising a hollow disc member, in the pump chamber and communicating with the pressure chamber, which normally rotates but is brakable to relieve the centrifugal pressure within it so that the liquid circulation is set up by differential centrifugal action. As shown applied to a plate clutch having single clutching members 29, 30, a housing 18 integral with the member 29 defines a pump chamber 46 and a pressure chamber 45 of smaller diameter, separated by a piston 5 keyed to a driving shaft 2. The member 30 is secured on a driven shaft 31 having an enlarged portion forming a bearing for the member 29, which has a sliding pin connection 36 with the piston 5. The hollow pump disc 12 is mounted on a sleeve 7 and dips at its periphery into the working liquid which, when the driving shaft is rotating, normally collects as an annulus in the larger diameter pump chamber and carries the disc 12 round with it. On applying a brake 11 to the sleeve 7 the disc 12, which may have polished or chromium plated surfaces to reduce friction, is arrested and the liquid is forced through it into the pressure chamber 45 via passages 13, 15, 50 and 44, moving the member 29 to the right for clutch engagement as shown. A continuous circulation is established through small orifices in, or clearances such as helicoidal grooves 40 around, the piston head which grooves or orifices, though by themselves insufficient normally to return all the liquid, allow it to drain completely back into the pump chamber for clutch disengagement on releasing the brake 11. During engagement, surplus liquid is returned through overflow passages 43 in the piston wall, which by their position determine the clutching force exerted. In Fig. 5 (not shown), the clutch is of the multi-disc type spring loaded to engage, and is disengaged by braking the pump disc, the piston in this case being the movable member. The application of this clutch to a dual turbine marine drive is described. Specification 594,790 is referred to.
Patent GB-442237-A (GB)
Title: Improvements relating to loading machines for use in mining
IPC: E21F13/06
Filed: 1934-10-04
Abstract: 442,237. Loading at working - face in mines. ANDERSON, A., and ANDERSON, BOYES, & CO., Ltd., Flemington Electrical Works, Motherwell, Lanarkshire. Oct. 4, 1934, No. 28396. [Class 78 (iv)] In apparatus for use at the working face in mines in which a loading-machine and the conveyer to which it delivers run in parallel paths on the opposite sides of a row of pit props, delivery from one to the other being effected by means of bridging-pieces passing between the props, the bridging-pieces are supported so that they travel normally with the machine along the face, but can be arrested by contact with the props without stopping the progress of the machine as a whole. The Figure shows a plan of a loading - machine 1 delivering over the bridging- pieces 4 to a conveyer 5. The loading-machine itself comprises gathering-means (not shown), feeding a belt conveyer 3. The bridging- pieces 4 have a stud-and-slot connection with the top run of an endless chain 6 provided with a slipping clutch 10. Normally the chain moves bodily forward with the machine, but when a bridging-piece is arrested by contact with a prop A, the slipping of the clutch allows the chain to rotate backwards sufficiently to compensate for the continued forward movement of the machine. A separate short chain 6<a> mounted on loose sprockets may form the rear end of the bridge support. The outer ends of the bridging-pieces may be supported on tensioned ropes stretched between the props.
Patent GB-1185924-A (GB)
Title: Method of Producing Coil Compression Springs from Hardened Steels
Inventor: SHALIN VLADIMIR NIKOLAEVICH
IPC: B21F35/00
Filed: 1967-06-20
Abstract: 1,185,924. Making coil springs. V. N. SHALIN. 20 June, 1967, No. 28413/67. Heading B3A. In a method of making coil springs from hardened steels, the spring is quenched, then tempered at such a temperature that the material of the spring has a hardness of 53-58 Rockwell C, and the spring surface is then cold worked. The cold working preferably comprises shot blasting. For a steel comprising 0À56- 0À64% C, 1À60-2À00% Si, 0À60-0À90% Mn, 0À30% max. Cr, 0À40% max. Ni, 0À03% max. S and 0À035% max. P, the temperature range for tempering is 360-380‹ C., and for a steel comprising 0À61-0À69% C, 1À50-2À00% Si, 0À70- 1À00% Mn, 0À80-1À20% W, and Cr, Ni, S and P as previously the temperature range is 380- 400‹ C.
Patent GB-1276221-A (GB)
Title: Apparatus for cleaning hollow bodies
Inventor: THIERSTEIN H
IPC: B41N3/06
Filed: 1970-06-11
Abstract: 1276221. Cleaning tubes FRITZ BUSER A.G. MASCHINENFABRIK. 11 June 1970 [11 June 1969] 28417/70 Heading F2N [Also in Division B6]  Cylindrical printing screen 25 is supported on rods 9 by its flanges 26 and pivoted into cleaning compartments 1, which is then closed by pivoted wall portion 5. Spray nozzles 15 then apply a washing liquid to the screen. Application of screen 25 to the rods 9 is made with the rods horizontal. A plurality of pivoted wall portions and sets of rods may share a common compartment 1. Preferably, the screen rotates during washing, under impact of tangentially directed jets which play on it externally, in addition to the internal jets from the nozzles 15.
Patent GB-928203-A (GB)
Title: Impregnated plates for image production by engraving
IPC: G03F1/68
Filed: 1961-08-04
Abstract: 928,203. Plate for image production by engraving. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Aug. 4, 1961 [Aug. 11, 1960], No. 28439/61. Class 98 (2). A uniformly finished-surface sheet of deformable transparent plastic material has one surface impregnated with a material having a low transmittance to ultra-violet light but otherwise retaining the original finished-surface character. The impregnating material may be a dye, or if colourless may have added dye for visibility. Engraving may be effected through such surface by the machines described in Specifications 692,349 and 692,400 to produce a screened image, of the type shown in Specification 878,474, which may be used directly as a letterpress printing plate or may be exposed on to photo-actinic paper as for offset plate production. An example describes production of the plate by application of a solution of oil yellow in methyl alcohol to a skived sheet of cellulose nitrate having its surface finished by polishing under heat and pressure and drying, and numerous other plastic sheets, impregnating materials and mutual solvents therefor are listed. Specification 557,352 also is referred to.
Patent GB-1170669-A (GB)
Title: An Electrically Powered Fan
IPC: H02K11/33
Filed: 1967-06-20
Abstract: 1,170,669. Electric motors. SIEMENS A.G. 20 June, 1967 [21 June, 1966], No. 28522/67. Heading H2A. A motor-fan unit 7, 24 is supported in a housing 3 which is sealed into a window 1, by means of struts 6 integral with a bolted-on member 4. Current supply leads 6 to the motor lie in the struts 6 and are connected to plugs 9 whose sockets 13 are mounted on a cover 12 which also carries other components, e.g. a condenser and a connector (not shown, but see Fig. 2). The motor is controllable in speed and direction, and an iris diaphragm 23 is provided. There is a cover-grille 21.
Patent GB-925077-A (GB)
Title: Liquid adhesive compositions
IPC: C09J7/10
Filed: 1959-08-21
Abstract: A liquid adhesive composition comprises, in a liquid vehicle, one or more resin components having film-forming and adhesion producing properties and being plasticized and/or polymerized to an extent whereby the cohesive film tensile strength and adhesiveness thereof for a surface to which the composition is first applied exceed, after removal of the liquid vehicle, the tackiness of the resin component or components, the tackiness, measured as peel strength by A.S.T.M. method D903-49, not exceeding 250 grams and being maintained for a prolonged period. Various resins, liquid vehicles and plasticizers are specified. The examples describe the following compositions: (1) a vinyl chloride-acetate copolymer, maleic anhydride modified glycerol abietic acid resin, epoxidized oil plasticizer, butyl phthalyl-butyl glycollate, ethyl acetate, acetone and methyl isobutyl ketone; (2) a mixture of hard and soft resins made from acrylic and methacrylic esters, benzyl butyl phthalate and methyl ethyl ketone; (3) a copolymer of vinyl and vinylidene chloride, diphenyl octyl phosphate and methyl ethyl ketone; (4) poly-n-butyl methacrylate, decyl butyl phthalate and methyl ethyl ketone; (5) poly-n-butyl methacrylate, a rosin derived adhesive, di-iso-octyl phthalate and methyl ethyl ketone; (6) ethyl cellulose, 2-biphenyl-diphenyl phosphate, isopropanol, toluene and butyl acetate; (7) a water emulsion of a soft filmforming and a medium hard film-forming polyacrylic resin.  Also present in the compositions may be bacteriostatic or bacteriocidal agents, e.g. maleic anhydride, phenols, cresols, chlorinated phenols and thiochlorinated phenols.