baber/WOPTO huggingface dataset:
Patent GB-507561-A (GB)
Title: Improvements in hydraulic couplings
IPC: F16D31/02
Filed: 1937-12-29
Abstract: 507,561. Hydraulic clutches. FRASER. W. Dec. 29, 1937, No. 32847. [Class 69 (ii)] A hydraulic coupling comprises an outer casing 1, 4, 5 mounted on one shaft 6 and forming a liquid reservoir, a casing 11 on the other shaft 9 concentrically and rotarily mounted in the outer casing and having a series of intercommunicating radially disposed cylinders 13 and pistons 14 forming an inner enclosed pressure zone within the reservoir, a positively adjustable valve 26 for varying the degree of intercommunication between the cylinders, rollers 15 on the pistons engaging a symmetrical cam 2 on the outer reservoir casing whereby during relative rotation of the inner and outer casings the pistons are reciprocated in rotary balance, and non-return valves 20 on the inner casing adapted to open and permit liquid to pass from the outer reservoir to the inner pressure zone to replenish such zone when leakage occurs therein. The interior of the valve communicates through a non-return valve and passage 40 with the axial part of the reservoir, whereby air is separated out in the latter. Vanes 33 are provided on the inner casing 11 and/or on the outer casing to assist the formation of a centrifugal ring of liquid in the reservoir casing. The pistons may be urged outwardly by springs. Specification 455,140 is referred to.
Patent GB-323598-A (GB)
Title: Improvements relating to window operating devices
IPC: E05F17/00
Filed: 1928-11-12
Abstract: 323,598. Hope & Sons, Ltd., H., and Garratt, H. H. Nov. 12, 1928. Picoted-window opening and closing apparatus.- Pivoted windows, particularly of the balanced kind, are operated by a bar b connected to one section at its upper edge and adapted to swing and slide relatively to a fixed en gagement-piece f to which it may be secured. The several sections of the window are connected by a link d pivoted to brackets c. The engagement-piece, may consist of two spaced strips secured by rightangle bends to the frame and joined at the outer ends with or without a roller g. The bar b slides through an enlarged space between the strips and may be held by means of studs and recesses in suitable open or closed positions.
Patent GB-1213940-A (GB)
Title: Lubrication process
IPC: B30B11/10
Filed: 1969-07-01
Abstract: 1,213,940. Lubricating compression moulding dies. BELGONUCLEAIRE S.A. and CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE. 1 July, 1969 [5 July, 1968 (2)], No. 33087/69. Heading B5A. [Also in Division F2] The moulding surfaces of a compression moulding chamber are provided with a film of lubricant by the compression therein of deformable solid particles, including a lubricant, prior to the compression therein of a particulate moulding material. The process may be employed using an alternating sequence of one or more lubricating or moulding compressions. The solid lubricating particles may comprise a solid lubricating material, or solid carrier particles which may be non-recoverably or elastically deformable during the compression and include, as 0À1 to 20% of the weight thereof, a liquid lubricant. The solid lubricants may comprise stearates, palmitates, laurates and xanthates of aluminium, zinc, magnesium, and calcium, or glycerol mono-stearate, paraffin wax, molybdenum disulphide, or graphite. The liquid lubricants may comprise refined animal, marine, vegetable and mineral oils. The carrier particles may comprise polymers e.g. polystyrene, polyethers, polyurethanes, polysiloxanes, polybutene, polypropylene, polybutadiene, and natural rubber, and may comprise foamed resin or rubber. As applied to a continuously rotating press comprising dies on a rotary horizontal table with which co-operate upper and lower compression punches the dies are filled with solid lubricant particles on passing beneath a hopper 1, the particles are respectively precompressed and then compressed by cam actuation of the punches at 2 and 3, and the compressed lubricant particles are ejected at 11 by the lower plunger and deflected by a fence 12 into a shoot 4 wherefrom they may be recycled to the hopper 1, either manually or by a conveyer 10. The lubricated dies are then filled with particulate moulding material, on passing beneath a feed hopper 5 and frame 6, which is moulded by precompression and compression at 7 and 8 and ejected at 13 for deflection of the moulded article, from the table into a shoot 9, by means of a fence 14. Examples are given in which the press moulds uranium oxide, and uranium carbide powders, respectively employing as carrier particles 0À3 mm. balls of polystyrene rolled in zinc behenate powder for deposits of 1-3%, and 5-10% by weight of the polystyrene. Uranium oxide may be recovered from lubricant exhausted particles. In a further example, ovoid natural rubber particles are used, coated with 10% calcium stearate.
Patent GB-1043372-A (GB)
Title: A camera attachment
IPC: G03B27/62
Filed: 1961-09-15
Abstract: 1,043,372. Photographic camera attachment. W. R. HECKLE. Nov. 20, 1962 [Sept. 15, 1961], No. 33089/61. Heading G2A. A camera attachment comprises a holder for a transparency, an adaptor for fitting on to the lens mount of a camera, a tubular light passage connecting said holder and adaptor, and a lens system or a pinhole in the passage selected so as to reproduce in the camera an image of the transparency. As shown, a holder 1 carries a frosted glass square 2 and a spring holder 3 for a transparency and a slot 1a for passage of a film strip. A conical extension 5 is attached to the holder and a cylindrical part 6 in which part is mounted open ended tube 7 having an inclined slot 8 fitting into screw 9 mounted in part 6 so the length of the attachment may be adjusted. Tube 7 has thread 7a screwing into head 10a of adaptor 10 which has a recess 10b selected to fit over lens holder 11 and hold these by pinching screws 13. For different sizes of lens mounts rings 14 are provided. Disc 15 carrying lens 16 is held in adaptor 10 by screwing in bush 7. Disc 15 may be replaced by disc 18 which has a pin hole aperture which is connected to screw 19 having bush 20 thereon and a film gate 21 for a film strip pivoted on bush 20.
Patent GB-792087-A (GB)
Title: Improvements in or relating to containers for medicines, first aid kit and other articles
IPC: A61F17/00
Filed: 1955-11-18
Abstract: 792,087. Cases or pouches. RAND, S. D. Nov. 7, 1956 [Nov. 18, 1955], No. 33119/55. Class 133. A case or pouch for medicines, first-aid articles &c. comprises an elongated pocket 15 having a transparent front wall and a closure flap 11 extending from the rear wall, the flap bearing a contents list 19, and the contents, a series of small containers 20, being marked to correspond with the list. As described, a second flap 12 is provided having press-stud connection with the flap 11. Both flaps have transparent portions 17, 18 forming pockets. The ends and bottom of the pocket 15 may also be transparent.
Patent GB-1181868-A (GB)
Title: Microphone having a Variable Directional Characteristic
IPC: H04R1/38
Filed: 1967-07-19
Abstract: 1,181,868. Microphones. AKUSTISCHE U KINO-GERATE G.m.b.H. 19 July, 1967 [19 Aug., 1966], No. 33184/67. Heading H4J. In a microphone having a variable directional characteristic (e.g. cardioid, hypercardioid, supercardioid) a deflecting member in the form of a disc or sleeve between a sound inlet opening communicating with the forward face of the diaphragm and a sound inlet opening communicating with the rear face of the diaphragm is provided and is detachable and/or adjustable in size and/or shape whereby to vary the external acoustic path between the front and rear inlet openings. In a first embodiment, a dynamic microphone capsule 1 (Fig. 1) having front inlets 2, rear inlets 3 and a pressure chamber 5 is provided with a removable deflecting disc 6. Without the disc 6 the acoustic path d 1  between front and rear inlets 2, 3 provides a cardioid characteristic while with the disc 6 in place the acoustic path d 2  provides a supercardioid or hypercardioid characteristic, depending on the size of the disc 6. Alternatively a plastics deflecting disc 6<SP>1</SP> (Fig. 5) has openings 7 which may be closed by a punched metal sheet 8 rotatably mounted in a groove 9 of the disc 6<SP>1</SP>. The sheet 8 is rotatable by a lever 10 and has openings 11 which correspond to the openings 7. Acoustic paths d 1 , d 2 , d 3  provide cardioid, hypercardioid and supercardioid characteristics, respectively. Alternatively, a microphone capsule 1 in a housing 12 (Fig. 7) is provided with a cap 13. Sound enters through a front protective screen 14 and through slots 15 in the cap 13. Frusto-conical member 6 is fitted to the cap 13. The member 6 may be circular, elliptical or star-shaped. It may be used as a microphone rest, either being provided with an elastic ring 17 or with a peripheral pad. The member 6 may be of variable outside diameter and arranged as an iris diaphragm.
Patent GB-618307-A (GB)
Title: Improvements in heating devices
IPC: F24H3/00
Filed: 1946-11-08
Abstract: 618,307. Electric heating. ALADDIN INDUSTRIES, Ltd., and HEBARD, H. C. Nov. 8, 1946, No. 33265. [Classes 39 (iii) and 126] [Also in Group XIII] In a heating unit comprising a casing 1 containing a source of heat e.g. an electric element 4 or a flue for combustion gases [see Group XIII], the heat source is held or formed centrally between two metal sheets 5 of high heat conductivity from which heat is conducted and radiated to the corrugated sides of the unit from which sides the sheets 5 are separated by air spaces closed at top and bottom by a cowl and base (not shown). Nuts and screws 7 secure the element 4 between the sheets 5 together with external heat insulating plates 8. The structure is mounted on a lower casing carrying an indicator light 20 which glows when the element 4 is operative. An external heating element 16, protected by a guard 17, is mounted in a recess at the front of the unit.
Patent GB-864709-A (GB)
Title: Deep cooling of gases
IPC: F17C13/00
Filed: 1957-10-25
Abstract: 864,709. Heat insulation. SULZER FRERES S.A. Oct. 25, 1957 [Nov. 15, 1956], No. 33403/57. Class 64(2) [Also in Group XXVIII] The vacuum insulation space 3 of a casing 2, surrounding and spaced from heat exchanges, 1 having supply and discharge lines 8, 10, 12 for a gas to be cooled, and possibly liquened, e.g. hydrogen or helium, is maintained at a pressure be- 'tween 10<SP>-3</SP> and 10<SP>-2</SP> mm. mercury gauge by a vacuum pump 5 drawing through a restricted inlet duat 6 a gas of thermal conductivity not greater than 0.6 x 10<SP>-4</SP> C.G.S. units of 0‹ C. and atmospheric pressure, e.g. carbon dioxide or nitrogen.
Patent GB-793073-A (GB)
Title: Improvements relating to locomotive boilers
IPC: F22G7/06
Filed: 1955-11-22
Abstract: 793,073. Multi-tubular steam boilers; controtting superheat temperature. GIESLINGEN, A. GIESL-, and ALTMANN F. Nov. 22, 1955 [Dec. 10, 1954], No. 33453/55. Classes 123(2) and 123(3) In a locomotive boiler having smoke tube superheater elements 'and provided with an induced draught plant, for example as described in Specification 683,234 [Group XII], capable of producing a smoke box vacuum of 100 mm. water column while operating with a back-pressure of exhaust steam of at the most 0.2 kg/sq.cm. measured at the exhaust connection of the locomotive engine, high superheat temperatures are attained by causing a greater gas flow through the smoke tubes containing superheater elements by restricting the flow in the other smoke tubes. As shown in Fig. 1, the flow may be throttled by welding a ferrule 1 into the firebox end of each of the open tubes 2, the bore d of the ferrule being less than half the diameter D of the tube. Other forms of inlet ferrule are described. Alternatively, a throttling member 37, Fig. 10, may be .welded into the. tube outlet, the member having a resilient flap 39 which opens as the boiler load increases. In a modification, Fig. 12, a pivoted plate 43 controls the outflow from the whole of the open smoke tubes 40, the plate being connected by a link 50 to dampers 56 controlling the flow of exhaust steam from the blast pipe 52 so that the gas flow over the superheater is controlled simultaneously with the smoke-box vacuum. The boiler drum may incorporate feed water preheating means comprising a transverse partition T, Fig. 14, providing a compartment K to the lower part of which cold feedwater is supplied through a pipe V, heated water overflowing into the main section R of the drum through openings O in the partition.
Patent GB-618820-A (GB)
Title: A method for the production of niobium containing steel
IPC: C21C7/00
Filed: 1946-11-11
Abstract: A process for the direct production of a niobium-containing steel is characterized by the feature that niobium-bearing ore and a reducing-agent are added to the steel base before or during the melting of the base.  The steel base may be virgin steel or it may comprise alloy-scrap comprising, in addition to iron, some of the elements desired in the product or used in the reducing agent. The base may contain highly alloyed steel scrap, e.g. stainless steel which may be of the austenitic type containing one or more of titanium, niobium and zirconium.  The reducing agent may comprise one or more of titanium, zirconium, calcium, aluminium and silicon, e.g. ferro-silicon.  The ore may comprise columbite containing over 50 per cent Nb2O5 with relatively small amounts of Ta2O5 and minor quantities of reducible oxides such as FeO and MnO.  The process may be carried out in a basic-lined steelmaking furnace or a high-frequency induction furnace.  An example is given of the production of an alloy steel containing 0.09 per cent C; 0.45 per cent Si; 0.64 per cent Mn; 17.6 per cent Cr; 8.9 per cent Ni; 0.02 per cent Ti; 0.77 p  per cent Nb and 0.15 per cent Ta. Specifications 152,371, [Class 82(i)], 434,400 and 467,483 are referred to.
Patent GB-1417283-A (GB)
Title: Plant for the accurate maintenance of slight underpressure in container systems connected to a gas suction plant
IPC: G05D16/04
Filed: 1973-07-13
Abstract: 1417283 Valves LICENTIA PATENTVERWALTUNGS GmbH 13 July 1973 [21 July 1972] 33542/73 Heading F2V Apparatus for maintaining a slight underpressure in containers 1, 2, e.g. in nuclear reactor or chemical technology, comprises first and second liquid receptacles 11, 12 communicating beneath the liquid, liquid supply line 9, liquid overflow lines 7, 8 connected to the receptacles at different levels, a compensating conduit 13, and a suction line 5 having its inlet end located between said levels. The supply line 9 contains a valve 8 controlled in accordance with the liquid levels at points 14, 15. In nuclear reactor technology the apparatus is used to maintain a slight underpressure of air used for decay of short-lived isotopes present in the containers 1, 2. The system is shown in a stable situation with the desired underpressure present in receptacle 12 and containers 1, 2. If liquid is fed into the containers 1, 2, the pressure increases and causes the liquid level in receptacle 12 to fall and uncover the lower end of suction line 5 whereby the displaced air is drawn off. If liquid is discharged from the containers 1, 2, the consequent pressure drop causes the liquid in receptacle 12 to rise and overflow at 15, and the liquid level in receptacle 11 to fall and uncover the associated end of conduit 13 so that makeup air can flow from line 6 through conduit 13 and receptacle 12 into the containers 1, 2. If the plant creating the suction should fail, the consequent rise in pressure causes liquid to overflow at 7. Thus if liquid is fed into the containers 1, 2 no dangerous overpressure can develop since liquid merely continues to overflow at 7 until the end of conduit 13 in receptacle 12 is uncovered to permit relief of excess pressure through conduit 13 and line 6.
Patent GB-906993-A (GB)
Title: Improvements relating to incinerators
Inventor: COOKE WILLIAM HENRY
IPC: F23G5/16
Filed: 1959-10-02
Abstract: 906,993. Incinerators. COOKE (ROMFORD) Ltd., W. H. Dec. 29, 1960 [Oct. 2, 1959], No. 33545/59. Class 51 (1). A refuse incinerator comprises a primary combustion chamber 25 with a grate 32 through which primary air is passed, secondary air ports 39 above the grate, a flue 30 leading to a downtake 28, a secondary combustion chamber 29 with a gas burner 45 and a chimney 48. The incinerator also comprises an external laminated sheet steel box 10 separated by air cavities 21, 22 from internal brick walls 11, all supported on a concrete plinth 13. The brick roof 26, Fig. 5, of the primary chamber is semicylindrical at one end, leading on to a concrete roof 31 covering the rest of the incinerator, there being a cavity wall 27 between the primary and secondary combustion chambers. Ledges 20 define the extent of cavities 21, 22 which, together with cavity 27, form respectively the primary and secondary air preheating passages, the air flow being regulated by doors 23, 24. There is also a removal door and an explosion and inspection door. Refuse on the grate 32 is ignited by a burner 40 in the ashpit 34 and burnt with primary air entering through openings 38. Tho combustion gases and excess secondary air pass through passage 30, down flue 28, through chequered brickwork 44 heated by the secondary burner 45, and into the secondary combustion chamber where combustion is completed. Two adjustable dampers 50, 51, and a fixed baffle 49 control the flow of waste gases to chimney 40, damper 50 having staggered perforations in its double blades 53, 54 to trap dense material and sparks.
Patent GB-802921-A (GB)
Title: Polymethylene terephthalates
Inventor: ISAACS ELIAS
IPC: F16C3/28
Filed: 1955-11-23
Abstract: In the manufacture of highly polymeric polymethylene terephthalates by effecting esterinterchange between a dialkyl terephthalate and a glycol of formula HO(CH2)nOH, where n is 2-10, in presence of an alkaline earth metal compound and subjecting to the product to polycondensation in presence of a polycondensation catalyst, the alkaline earth metal compound is converted wholly or in part to a phosphorus acid salt of that metal which is catalytically inert and which is soluble in the polycondensation reaction mixture and in the final polymer.  The resulting polymers have improved clarity and films made therefrom have improved friction characteristics.  The conversion of the alkaline earth metal compound is effected by adding at the beginning or during the early stage of the reaction phosphoric acid, hypophosphorous acid, phosphorous acid or a trialkyl phosphite (e.g. triphenyl phosphite).  The alkaline earth metal compound acting as ester-interchange catalyst may be calcium acetate, calcium benzoate, calcium salicylate, calcium borate or strontium acetate and the polycondensation catalyst may be litharge, germanium oxide or an antimony compound (e.g. antimony oxide).  Examples describe the manufacture of polyethylene terephthalates from ethylene glycol and dimethyl terephthalate or a mixture of dimethyl terephthalate and dimethyl isophthalate.
Patent GB-412946-A (GB)
Title: Improvements in process of and apparatus for reducing the diameters of metal objects
IPC: B23K7/06
Filed: 1933-11-30
Abstract: 412,946. Cutting by fusion. CAMPBELL, L., 2828, Washington Avenue, Cleveland, Ohio, U.S.A. Nov. 30, 1933, No. 33588. Convention date, Jan. 6. [Class 83 (iv).] The diameter of a metal object is reduced by preheating a portion thereof and directing on to this portion a stream of oxygen which produces rapid oxidation of the metal, the stream being then applied in rotational succession to the region whose diameter is to be reduced. A corner V of a shaft S mounted in a lathe A is preheated by an oxy-acetylene or like flame from a burner M mounted on a carriage D and when a sufficient temperature has been attained, oxygen is supplied through a large bore in the burner which is traversed along the shaft S first slowly by a hand control G, and then more rapidly by mechanical means controlled by a lever H. The shaft is so rotated that the portion operated on by the stream moves towards it. The oxygen is supplied at low pressure in a stream tangential to the finished shaft and may be followed by a high pressure stream to obtain an improved finish. The speeds of the rotation of the shaft and the traverse of the burner may be adjusted to produce a helical groove in the object.
Patent GB-1403383-A (GB)
Title: Composite film structure
IPC: B29C43/02
Filed: 1972-07-18
Abstract: 1403383 Magnetic recording materials MINNESOTA MINING & MFG CO 18 July 1972 [19 July 1971] 33628/72 Heading B2E [Also in Divisions B5 and G5] A composite film from which magnetic recording discs having the cross-section shown can be made by embossing, comprises a flexible heat-resistant dimensionally-stable base 23, a heat-softenable pressure-formable intermediate layer 22 of thickness at least 1 mil and containing no magnetically susceptible filler, and a layer 21 of magnetically susceptible material dispersed in a non-magnetic binder. The base 23 may be aluminium, stainless steel, or, preferably, a polyethylene terephthalatepolysulphone blend. The intermediate layer 22 should be a resin of softening point 55-90‹C, e.g. polyesters and butadiene-stryene copolymers as specified; resins of higher softening point, e.g. polyvinyl butyrol, polyvinyl chloride, may be brought within this range by incorporating a plasticiser. The layer 21 may comprise Fe 2 O 3  dispersed in vinyl chloride-vinyl acetate copolymer layers 21, 22 are preferably applied by solvent casting, e.g. by knife, reverse roll or rotogravure, followed by drying; alternatively layer 22 may be applied by extrusion coating or as a preformed film. Since layer 22 is normally tacky, a slow-adhesion backing 24 may be coated on to the base 23 to minimise handling difficulties. The. composite film may be embossed between a preheated die and a preheated plate. Alignment holes and a transparency window may be produced by punching.