baber/WOPTO huggingface dataset:
Patent GB-985836-A (GB)
Title: Shadowless lighting apparatus
IPC: F21V13/04
Filed: 1963-07-02
Abstract: 985,836. Shadowless lighting apparatus. ANCIENS ETABLISSEMENTS BARBIER, BENARD & TURENNE. July 2, 1963 [July 6, 1962], No. 26210/63. Heading F4R. Apparatus for producing shadowless illumination for surgical and like uses includes a refractor 2 and a co-operating reflector 3, each formed as part of a body of revolution and arranged so as to subtend the same angle at the light source 1, the refractor 2 being formed as a Fresnel optical system 2A and the reflector 3 being substantially cylindro-elliptical with one focal axis Z-Z 1  coinciding with the axis of revolution Y-Y 1  of the reflector and with the axis of revolution X-X 1  of the light source, the latter being displaced along the common axis from the focal plane F-F 1  of the refractor. All light rays from the source converge to form a luminous image of the light source on a screen 4 on the second focal axis W-W 1  of the reflector 3. In a modification, the reflector is replaced by a series of juxtaposed plane mirrors following the outline of the elliptical reflector.
Patent GB-604526-A (GB)
Title: Improvements in apparatus for testing the accuracy of frequency of energy pulses with respect to a time standard
IPC: G04D7/12
Filed: 1945-10-08
Abstract: 604,526. Circuits for stethoscopic and like apparatus. DU MONT LABORATORIES, Inc., A. B. Oct. 8, 1945, No. 26217. Convention date, Oct. 6, 1944. Drawings to Specification. [Class 40 (iv)] [Also in Groups XVIII, XXXVIII and XL (b)] In an arrangement for testing watches or other oscillating mechanical or electrical systems, a cathode beam scans the screen at a rate related to the correct speed of the watch to produce a substantially rectangular raster and is modulated by each tick or other periodic impulse. As a result, when the watch is going regularly at the correct speed, a horizontal line of dots is produced on the screen. If the speed is too high or too low, a sloping line is produced, or if it is irregular the line is not straight.
Patent GB-1347772-A (GB)
Title: Co-extrusion die
IPC: B29C48/09
Filed: 1971-04-19
Abstract: 1347772 Extruding tubes NATIONAL DISTILLERS & CHEMICAL CORP 19 April 1971 [31 March 1970] 26339/71 Headings B5A and B5B A laminar tube, e.g. of 0À0004 inch to 0À020 inch wall thickness, comprising two or more layers, e.g. each of 0À0002 inch to 0À015 inch, each of the same or different thickness, of the same or different materials, is extruded at an outlet 69 from an annular passage 68 defined between die core and outer members which rotate together, either continuously or reciprocatingly, to effect rotation relative to feeding paths, e.g. 101, 107, 112, from which the materials are supplied, via radially directed passages through the die core discharging sequentially into the passage 68 at annular grooves, e.g. 42, 50, 58. The laminµ may comprise various specified thermoplastics, rubbers, thermosetting resins such as phenolics and epoxies, or regenerated cellulose, or paper pulp compounds, and may comprise a five layer extrudate, or a three layer extrudate of the same or different materials. The different layers may be compatible to form non-separable laminµ, or may be separable, e.g. for use as bags or containers. The extruded tube may be inflated, e.g. by air, through a core passage 16, cooled, collapsed, and wound; may be slit into a sheet after cooling; and may be treated by electrostatic discharge prior to coating with ink. In the described embodiment, the die core and outer members comprise a number of bolted together sections which are rotated, from continuous or reciprocatory means engaging at 71, 73, at bearings 124, 126 about a stationary housing 120, the bearings providing an outer rotatable track, 124a and 126b, and an inner non-rotatable track 124b and 126a, between which are located ball bearings 123. The feeding paths 101, 107, are defined by stationary concentric tubes 100, 106 which communicate with the annular grooves, e.g. 42, each by a plurality of radially directed passages, e.g. 38, annular groove, e.g. 40, defined between the bolted together sections of the core, e.g. 32, 44. Each feed path 101, 107 communicates, at 104, 108, with an extruder. A further feed path 112 similarly communicates, from an extruder at 114, with an annular groove 58, and is defined between the outer tube 106, and the stationary housing 120 and continuing surfaces of the rotary die outer member. Sealing gaskets of polytetrafluoroethylene, which may be glassfilled, are provided throughout the die. The die outlet is bounded by an element 10<SP>1</SP> secured by bolts 11 providing for adjustment with respect to the die core.
Patent GB-1293373-A (GB)
Title: Improvements in or relating to calculating machines
Inventor: LLOYD JOHN GEORGE
IPC: G06F15/02
Filed: 1969-05-23
Abstract: 1293373 Digital calculator BELL PUNCH CO Ltd 22 May 1970 [23 May 1969] 26384/69 Heading G4A The digital electronic calculating machine of Specification 1,265,582 is modified by adding a store register 24a and store keys S and SE. The machine includes an input register 24 and an accumulator register 38, whereby numbers entered on a keyboard can be entered into the input and accumulator registers and the four rules of arithmetic performed, the answer being stored in the accumulator register and shown on a visual display. The store register 24a is the same as the input register and is connected alternately therewith by depression of key S, using circuitry 60, 63 (Figs. 3 and 4, not shown). When key S is released register 24a is replaced by register 24. On depression of key SE register 24 is replaced by register 24a and a number previously stored in register 24a is added to (or subtracted from) the number in register 38 and the resultant copied simultaneously into registers 38 and 24a. When key SE is released register 24a is replaced by register 24 again.
Patent GB-691051-A (GB)
Title: Improvements relating to seed drills
IPC: A01C7/02
Filed: 1949-10-14
Abstract: 691,051. Seed sowers. THOMAS, S., and THOMAS, B. A. Jan. 15, 1951 [Oct. 14. 1949], No. 26393/49. Class 6(i) A seed sowing device comprises a seed container and lid 7 each provided with peripheral holes 15 which are clipped to a metal disc 1 by means of clips 3. A handle 8 is rotatably mounted on a bearing on the disc 1. The container and lid may be 'rotated relatively to each other to vary the effective size of the openings. A number of containers may be provided for different size seeds and the container or lid may be made of a transparent substance.
Patent GB-709077-A (GB)
Title: Improvements in or relating to outside cloths for the filtering cloths of filter presses
IPC: B01D25/176
Filed: 1951-11-13
Abstract: 709,077. Filter presses. HEATH, J. S., and HEATH, C. R. Nov. 10, 1952 [Nov. 13, 1951], No. 26496/51. Class 46 An outside cloth for filter cloths of a filter press comprises a centre part a of open weave or reticulated plastic material to which a bounding strip b of imperforate plastic material is secured, e.g. by sewing or other appropriate means. In the case of presses having plates with side suspension the outside cloth is bipartite and is straddled over the plate and apertures a<SP>1</SP> in the centre of the panels a which may be lined with nylon engage with the tubular part of the filter cloth proper. Where the plates are suspended from above the two outer cloths are tied together. Reference has been directed by the Comptroller to Specification 687,968.
Patent GB-815095-A (GB)
Title: Method for improving the machinability of steel
Filed: 1955-09-15
Abstract: A method of machining free cutting steels comprises the step of removing metal in a machining operation from steel containing Cu in amount greater than 0.06 per cent by weight and N in amount greater than 0.001 per cent by weight.  Preferably the Cu content is between 0.06 and 0.6 per cent.  The steel may also contain S 0.01-1.0 per cent, P 0.01-0.2 per cent and one or more of Ni, V, Cr and Mo up to 0.05 per cent each.  The steel may be worked prior to machining, e.g. by a drawing operation which preferably achieves a reduction of cross sectional area greater than 20 per cent, and then strain relieved at a temperature above 550 DEG F. but below the lower critical temperature.  The steels may be low carbon steels with C less than 0.25 per cent, medium carbon steels with C 0.25-0.5 per cent or high carbon steels with C above 0.5 per cent.  Cu may be added to the steel as elemental Cu, copper oxygen sulphide, copper sulphide, copper sulphate or as a master alloy containing copper such as an iron-copper-sulphur alloy. Specifications 761,150, 761,151 [both in Group XXII] are referred to.
Patent GB-718612-A (GB)
Title: Liquid cooled piston
Inventor: HUNT TOM OWEN
IPC: F02F3/00
Filed: 1951-11-13
Abstract: 718,612. Pistons. SPECIALLOID, Ltd. Feb. 11, 1953 [Nov. 13, 1951], No. 26524/51. Class 122(1) A piston for an internal-combustion engine, particularly a Diesel engine, in which the crown 1 of the piston and the ring belt are cooled by liquid, e.g. oil, conveyed as by a walking-link or telescopic feed pipe 7 preferably from the small end of the connecting-rod and circulated in the piston in a generally radial direction, comprises a ring carrier 12, Fig. 1, clamped between the crown 1 and the body 3 of the piston. The crown is located on the body by a spigot 4 provided on the crown or the body and engaging a recess in the other part, and the parts are secured by bolts 6, screw-threads, or shrink-fitting which may be combined with bolts or screw-threads. Radial channels 8, 9 or one or more scroll channels may be formed in the raised parts of the abutting faces of the crown and the body to convey the lubricant to an annular groove 13 behind the carrier 12 from which it enters axial passages 18 in the carrier through lateral recesses 20 or the open ends of the passages 18 which would otherwise be sealed as by plugs 22 or a pressurefilled sealing ring. The coolant then passes into an annular groove 14 in the body 3 and is drained into the interior of the piston through passages 16. Sealing rings 21 are located at the ends of the annular grooves 13, 14 and pressure-filled sealing rings 23 at the ends of the carrier. In a modification, Fig. 4, the coolant circulates through the passages 18 in the carrier before cooling the crown, passages 24 in the body conveying the coolant to the groove 14 and an annular groove 25 collecting it from the radial channels, 8, 9 in the raised parts of the abutting surfaces and conveying it through at least one further passage into the interior of the piston. If the piston is intended for use horizontally, the drain holes 20 for the lowermost passages 18 may be smaller than the others. In further modifications, not illustrated, only one of the annular grooves 13, 14 may be provided, or the crown or the body or both may be formed with a plurality of scallops. Instead of, or in addition to the scallops in the piston, the inner face of the carrier may be formed with scallops. The carrier 12 may be made from austenitic steel, bronze or aluminium-bronze, cast-iron, heat-resisting steel, copper or aluminium alloys and the body 3 and crown 1 from aluminium alloys or cast-iron. A body of aluminium may be used in conjunction with a crown of cast-iron, austenitic steel, bronze or aluminium-bronze, copper or heat-resisting steel, or the body may be of cast-iron in conjunction with a crown of austenitic steel, bronze, aluminium-bronze, copper or heat-resisting steel. Specification 586,036 is referred to.
Patent GB-1528719-A (GB)
Title: Method of waste water treatment by yeast
IPC: C12N1/16
Filed: 1977-06-24
Abstract: 1528719 Purifying waste water AJINOMOTO CO Inc 24 June 1977 [30 June 1976] 26546/77 Heading C1C Waste water from an amino acid plant is purified by treating under aerobic conditions with a yeast belonging to the genus Trichosporon.
Patent GB-173051-A (GB)
Title: Improvements in stopping and turning signalling devices for road vehicles
IPC: B60Q1/34
Filed: 1920-09-17
Abstract: 173,051. Edmunds, H. C. Sept. 17,1920. Order apparatus. -In a road-vehicle direction - indicator of the kind comprising a compartmented casing carrying transparency signals which may be illuminated at will by electric lamps, and also the usual tail light and number plate, the switch for the signals comprises a resilient arm j moving over contacts k on a quadrant, but needing pressure before the arm makes contact with them. The switch carries on the same base two other contact arms p moving over a second quadrant and adapted to maintain open or closed the circuits of the rear light and number-plate light.
Patent GB-1220847-A (GB)
Title: Hydrodesulfurization process and catalysts
Inventor: O'HARA MARK JOSEPH
IPC: B01J21/12
Filed: 1968-06-05
Abstract: 1,220,847. Hydrodesulphurisation catalysts. UNIVERSAL OIL PRODUCTS CO. 5 June, 1968 [9 June, 1967], No. 26686/68. Heading B1E. A hydrodesulphurisation catalyst comprises at least one metal selected from each of Groups VI A and VIII composited with SiO 2 - Al 2 O 3  having an Al 2 O 3 :SiO 2  of 1.5-1 to 9-1, the catalyst being characterised by a pore volume of 0.3-0.5 cc/gm, pore diameter of 60-100, surface area of 150-250 m<SP>2</SP>/gm and bulk density of 0.625-0.875 gms/cc. Specified Group VI A metals are Cr, Mo, W and Group VIII are Fe, Co, Ni, Pt, Pd, Os, Ir, Ru and Rh. Comparative examples describe the preparation of Ni-Mo catalysts.
Patent GB-203549-A (GB)
Title: Improvements in or relating to appliances for lighting fires
IPC: F24B15/00
Filed: 1922-10-03
Abstract: 203,549. Blake, M. F. Oct. 3, 1922. Lighting fires.-An appliance for facilitating laying and lighting fires consists of a metal fork A to support the wood and other fuel and adapted to be positioned, so as to leave a space beneath for paper &c., by means of a hinged leg C. The leg, which can be set at any convenient angle by means of a stiff pivot pin D, supports the handle end of the fork while the front end rests against the back of the grate. Specifications 125,810 and 139,432 are referred to.
Patent GB-1171007-A (GB)
Title: Improvements in or relating to Corpuscular Beam Apparatus.
IPC: H01J37/21
Filed: 1967-06-09
Abstract: 1,171,007. Electron beam apparatus. SIEMENS A.G. 9 June, 1967 [10 June, 1966], No. 26737/67. Heading H1D. In a corpuscular beam apparatus, e.g. an electron microscope, having two deflection stages I and II in which the first stage deflects the beam away from its axis 5 and the second stage deflects the beam back in the opposite direction in the same plane so that it arrives at an object P at a predetermined angle #, at least one of the stages is provided with a deflection arrangement which compensates for any deflection of the beam in a direction perpendicular to the plane of the said deflections, the energization of the compensating deflection arrangement being proportional to that of the deflection stage with which it is associated. The arrangement ensures that the beam strikes the same point of the object when the angle of incidence # is varied. As shown, the compensating arrangement may comprise two coils 10, 11 which are perpendicular to the deflection coils 3, 4 of stage I. The coils 10, 11 may be replaced by deflection plates, or the deflection stages may employ deflection plates and the compensating arrangement may be a deflection coil, and in either case the deflection plates may be formed by insulated pole pieces in the deflection coils. In a further arrangement in which each deflection stage contains separate deflecting coils or plates transverse to each other so that both the angle of incidence and direction of incidence of the beam on the object can be changed, all the deflecting coils or plates in at least one stage are compensated to effect a correction for deflections in respective transverse directions.
Patent GB-1426720-A (GB)
Title: Valve device for use in a dual line liquid pressure braking system
IPC: B60T8/26
Filed: 1972-06-08
Abstract: 1426720 Pressure reducing valves AUTOMOTIVE PRODUCTS Ltd 8 June 1973 [8 June 1972] 26790/72 Heading F2F A pressure reducing valve having an inlet 74 connectible to a dual system pressure source, an outlet 86 connectible to a brake cylinder and a port 88 connectible to the other brake line, comprises a pair of co-operating valve members, one of which is biased towards the outlet out of engagement with the other, which is between the one member and the inlet, for the valve to be open whereupon liquid inflow causes action on the one valve member by pressure at the outlet and at the port opposing the bias to move the members together to close the valve until pressure build-up at the inlet reopens the valve. The valve is interposed in a brake line between a tandem master cylinder and a rear brake cylinder with the port 88 connected to the line for a front cylinder. Initially, a stepped spool 80 is biased by a spring 89, and inlet fluid pressure against the outlet 86 and away from a plunger 97 for fluid flow therethrough. Upon pressure build-up at the outlet 86 due to actuation, which acts upon a grooved right-hand end-face of the spool 80 and pressure acting on a right-hand face of a piston 85 integral with or coupled to the spool 80, the spool moves against a projection 101 on the plunger 97 to cut-off flow until inlet pressure build-up moves the spool rightwardly. If the front brakes fail, a bias therefrom, which helps closure movement of the spool 80 and the plunger 97, is removed to allow increased pressure at the outlet 86 per pressure increase at the inlet 74.
Patent GB-1076864-A (GB)
Title: Phosphate derivatives of polyols and their use
Inventor: SLACK GEORGE HESSELTIME
IPC: C07F9/09
Filed: 1965-06-24
Abstract: A coolant composition, e.g. for drilling operations, comprises the hexaphosphate reaction product of phosphoric acid, mannitol or sorbitol, and water, either alone or in combination with a lubricant. Specified compounds are mannitol and sorbitol hexaphosphates.ALSO:A composition, useful for the protection of metal surfaces comprises the hexaphosphate reaction product of phosphoric acid, a polyhydric alcohol selected from mannitol and sorbitol and water. The product may be used in aqueous solutions containing from about 1 to 30% by wt. of the product or the Na, K, Li or NH4 salts of the product may be prepared and utilized in solution optionally with the addition of colloidal silica.  The reaction product may also be utilized in an electrolytic bath used for forming a metal coating on a base metal, and the electrolyte suitably contains from 2 to 50 gms. of product per litre of electrolyte.  In one of the examples, an aqueous electrolyte is prepared by introducing into water 80 g/1. of nickel chloride hexahydrate together with 30 g/1. of an 80% by wt. aqueous solution of the reaction product of phosphoric acid, mannitol and water, and the resulting electrolyte is used for coating copper.ALSO:A resin dispersion is obtained by combining the hexaphosphate reaction product of phosphoric acid, a polyhydric alcohol selected from mannitol and sorbitol and water with a resin formed from phthalic anhydride and propylene- or triethylene-glycol, together with pelargonic acid, water and ammonium hydroxide.  The mixture is suitably heated to a temperature of at least about 400 DEG C.  The resultant resin dispersion possesses wetting properties but if such properties are not desired the pelargonic acid may be omitted.  In one of the examples, a resin prepared from phthalic anhydride and propylene glycol is combined with pelargonic acid, water, ammonium hydroxide and the reaction product of phosphoric acid, water and mannitol and the mixture is heated for about 20 minutes at a temp. of about 425 DEG  F.ALSO:Novel products are obtained by reacting phosphoric acid, sorbitol or diannitol and water wherein the phosphoric acid and polyhydric alcohol are reacted in substantially stoichiometric amounts to give the corresponding hexaphosphate derivative based upon the number of hydroxyl groups in the polyhydric alcohol.  The mixture is suitably heated at about 250 DEG  F. for a period of 10 to 30 minutes and the preparation of the composition may be combined with the production of phosphoric acid by cooling freshly prepared phosphoric acid to about 250 DEG  F. and adding the ingredients. In examples, compositions prepared appear to comprise sorbitol and diannitol hexaphosphates.
Patent GB-1235357-A (GB)
Title: Branched polyamides and a method for their preparation
IPC: C08G73/22
Filed: 1968-06-05
Abstract: 1,235,357. Branched cyclizable polyamides. SOC. ANON FRANCAISE DU FERODO. 5 June, 1968 [5 June, 1967], No. 26828/68. Heading C3A. Branched polyamides comprise divalent aliphatic or aromatic radicals R 1  and trivalent radicals R 2 , in the ratio R 1 : R 2  between 1: 20 and 1:1 linked together by the group where X is H, alkyl or R 4  is alkyl or aryl; and each OX is ortho or peri to an amide link. They may be obtained by reacting an appropriate di-(OX) substituted diamine or diisocyanate with a mixture of or successively with di-and tri-carboxy compounds in the melt, in solution or interfacially at below 220 C. Numerous reactants and reaction media are specified including tricarboxy compounds having carboxy groups ortho to one another. The polymers may be converted to branched polybenzoxazoles as described and claimed in Specifications 1,235,358 and 1,235,359. The polymers claimed in Specifications 1,122,925 are disclaimed.
Patent GB-849357-A (GB)
Title: Improvements in or relating to pharmaceutical compositions useful in the treatment of hypertension
Inventor: WRAGG WILLIAM ROBERT
IPC: A61K31/00
Filed: 1957-08-27
Abstract: Pharmaceutical compositions for oral and parenteral use comprise as active ingredient 2,2, 6,6-tetramethylpiperidine or an acid addition salt thereof, for example, the 8-chlorotheophyllinate, phosphate, nitrate, sulphate, maleate, fumarate, citrate, tartrate, methane sulphonate, ethane disulphonate, hydrohalide, e.g. the hydrochloride. The compositions may be in solid unit dosage form, e.g. tablets, capsules or powders comprising excipients and/or diluents, e.g. starch, lactose, stearic acid, magnesium stearate, dextrin, sodium carboxymethylcellulose and at least 0,1% by weight of the active substance; and in liquid form, e.g. solutions, suspensions, syrups, elixirs and emulsions which may comprise at least 0,025% by weight of the active substance if for parenteral use or at least 0,1% if for oral use.  Examples given are the preparation of a tablet comprising lactose, maize starch, sodium carboxymethylcellulose, stearic acid and 2,5 mg of 2,2,6,6-tetramethylpiperidine hydrochloride, and sterile injectable aqueous solution comprising 0,25 g of the same substance and up to 100 ml distilled water.
Patent GB-1017395-A (GB)
Title: Improvements in or relating to electrophotographic copying devices
IPC: G03G15/02
Filed: 1962-07-13
Abstract: 1,017,395. Charging device for xerographic apparatus. W. ZINDLER [trading as LUMOPRINT ZINDLER KOMM-GES]. July 13, 1962 [July 26, 1961], No. 27070/62. Heading G2H. In a xerographic apparatus having exposure, charging, developing and fixing stations, there is provided guide means of non-conductive material between a transport element and the changing electrodes of the changing device for guiding xerographic copy material at a fixed spacing from the electrodes and towards the transport member, this member having a curved transport surface, and the guide means are constructed as bars or strips curved in conformity with the transport surface and extending between the electrodes and transport surface so as to allow uniform changing of the copy material. As shown a curved plate 26 has a V-shaped opening 27 in the middle and on the either side openings 28, which are inclined outwardly in the direction of advance of the copy material, separated by strips 42. This plate is preferably used in xerographic apparatus of Specification 1,017,396. Reference has been directed by the Comptroller to Specification 819,510.