baber/WOPTO huggingface dataset:
Patent GB-475410-A (GB)
Title: Improvements in trough-shaped stepped mirror reflectors
IPC: F21V7/04
Filed: 1936-03-16
Abstract: 475,410. Reflectors. ZEISS IKON AKT.-GES. March 16, 1936, No. 7880. Convention date, March 28, 1935. [Class 75 (ii)] A trough-shaped reflector for use with a substantially point source of light, suitable for the indirect illumination of rooms or for illuminating advertising signs or the like, comprises a principal part 1 and a cylindrical part 17 which is convex towards the source of light and which includes a spherical segment 18 having its centre of curvature coincident with the source of light. The principal part 1 consists, on each side of a plane of symmetry 13, of a group of segments 15, 16 of confocal surfaces of revolution of curves of the second degree, the axes of revolution of the segments situated progressively nearer the bottom of the trough making progressively greater angles with the plane of the light-emitting aperture, and the axis of revolution of each segment also making an angle with the plane of symmetry, the parts remote from the plane of symmetry being stepped rearwardly to produce the trough formation. The light source may comprise the filament of an electric light bulb 7 and is situated at the common focus 6. The connecting surfaces 22, 23 between the segments 15, 16 are radial to the source of light to prevent losses. All the generating curves may be parabolas, but those for the segments which illuminate nearby portions of the field to be illuminated may be hyperbolas. The principal part 1 may be provided with a flange 24 to form with the cylindrical part 17 a rectangular boundary in the aperture plane. Glass reflectors may be fitted at either end with non-reflecting transverse integral walls to improve their stability. A number of these reflectors may form bands of light for architectural purposes.
Patent GB-796809-A (GB)
Title: Apparatus for screwing closures on to tubes and like hollow bodies
IPC: B67B3/20
Filed: 1957-03-11
Abstract: 796,809. Applying screw closures to collapsible tubes. MASCHINENFABRIK WINKLER, FALLERT & CO., AKT.-GES. March 11, 1957 [March 15, 1956], No. 7917/57. Class 125(2). Relates to apparatus in which collapsible tubes 23 are carried on mandrels 24 mounted in a turret plate 30 which is intermittently rotated to bring the tubes successively into alignment with means for applying a screw closure 2. According to the invention, an applicator 43 daubs the thread on the tube neck with oil, the mandrel is advanced and rotated into a closure restrained against rotation by a rubber pad 26, and finally the tube with the lightly applied closure is advanced into a closure key 31 and rotated to give the final tightening. The applicator 43 is mounted on a lever 8 carried by a rod 10 moved to and fro by a cam 12 to advance the applicator to the tubes. Through a link 35, the lever 8 also actuates a plunger 33 to eject the tube with its tightened closure from the key 31. The closures are fed down a shoot 4 to the rubber pad 26. A cam 15 through levers 16 advances members 18, 29, the latter being continuously rotated by gears 27, so as to engage toothed couplings 22 and then advance plungers 20 inside mandrels 24 to carry the tubes partially off the mandrels and into the closure applying devices.
Patent GB-690520-A (GB)
Title: Improvements in and relating to sockets for electric lamps, electrical plugs or the like
IPC: H01R33/46
Filed: 1951-04-05
Abstract: 690,520. Making lamp-holders &c. UNITED CARR-FASTENER CORPORATION. April 5, 1951 [April 13, 1950], No. 7949/51. Class 83 (ii). [Also in Group XXXVI] A socket for a lamp, plug or the like is bent up from a sheet metal blank, Fig. 4, and comprises a tubular body 16, Fig. 3, having an inwardly directed flange 18 at one end formed by tongues 42 on the blank and a series of integral tongues at the opposite end formed by tongues 46 on the blank, alternate tongues 20 of the latter series being laterally and outwardly bent to engage one face of a support 12 and the remaining tongues 22 being bent for snap-fastener engagement with an aperture in the support. Strips 30 are displaced outwardly to form slots 31 with which apertures 33 communicate to form bayonet slots. The meeting edges of the blanks when bent to form the body 16 have an interlocking tongue and recess 36, 38.
Patent GB-223816-A (GB)
Title: Improvements in spring mattresses
IPC: A47C23/145
Filed: 1924-03-28
Abstract: 223,816. Fraser, H. A., and Crighton, P. F. March 28, 1924. Wire fabrics.-In a woven wire spring mattress, individual coils of the fabric are reinforced by steel wires b of undulating form, threaded at intervals in the width of the fabric through and lengthwise of the coils, and adapted to be placed under tension with the fabric, the undulations being of such dimensions that the wires can be threaded longitudinally without any movement of axial rotation. The undulations may be of zigzag or sinuous form, and a pair of the reinforcing wires may also serve to secure the edge coils a<1> to the body a of the fabric so as to form cable edges.
Patent GB-1392905-A (GB)
Title: Therapeutic composition for medical veterinary of cosmeto- logical use
IPC: A61K31/265
Filed: 1973-02-19
Abstract: 1392905 Compositions containing diethyl pyrocarbonate PIERREFITTE-AUBY and R CHALAUST 19 Feb 1973 [17 Feb 1972] 8002/73 Heading A5B A therapeutic composition, for treating infections such as mastitis and for faciliating cicatrization, comprises diethyl pyrocarbonate of the formula as the active principle diluted to 1 to 5% by volume in an anhydrous aprotonic substance having no hydroxy groups. Suitable sustances include aliphatic hydrocarbons, vegetable and animal oils, grease, natural and synthetic waxes, petrolatum and liquid paraffins. The compositions may be in the form of an aerosol, a skin ointment, a lotion, a tablet, a solution or a cosmetic stick.
Patent GB-333589-A (GB)
Title: System for indicating fault location on electric transmission lines
IPC: G01R31/08
Filed: 1929-03-12
Abstract: 333,589. British Thomson-Houston Co., Ltd., and Lane, F. J. March 12, 1929. Drawings to Specifacation. Detecting, indicating, and locating faults.- Faults on transmission lines are indicated locally by electromagnetic pawl-and-ratchet mechanism energized by the fault current, the mechanism being provided with semaphone, coloured disc or like indicators. Successive operation of the fault indicators may occur so that should the faulty section be reconnected, the fault is still indicated. Pilot circuits may be provided for the indicators in which case the indicators may be energized by balanced beam or wattmeter type relays. The indicator coils may be fed through transformers such as those described in the protective arrangements disclosed in Specification 304,357, [Class 38 (v), Electric Switches &c.].
Patent GB-904916-A (GB)
Title: Improvements in and relating to pneumatic taper gauges
Inventor: RASCH HELMUT
IPC: G01B13/18
Filed: 1961-03-06
Abstract: 904,916. Pneumatic taper gauges. ZEISS JENA VEB., CARL. March 6, 1961, No. 8161/61. Class 106 (2). A pneumatic, taper gauge comprises two pairs of nozzles 5, 6 provided in bars 7, 8 slidable on a support 2 relative to the surface of the specimen 1 being gauged. Air pressure is supplied to the nozzles 5, 6 through conduits 11, 12 and the back pressures are a measure of the distances between surface of specimen 1 and surfaces 3, 4 of the support 2. The bars 7, 8 may be moved in unison by a drive 13 and guide 14 to gauge different parts along the specimen 1 and the support or specimen may be rotated to gauge the entire surface of the taper. The support body may be in one or in two pieces to adjust the angle of taper. The embodiment shown is for internal tapers but a similar gauge is provided for external tapers.
Patent GB-1171283-A (GB)
Title: Improvements in or relating to the Re-Heating of Steel Billets
Inventor: BARNETT JOHN HENRY
IPC: C21D1/70
Filed: 1966-02-25
Abstract: 1,171,283. Coated steel. G.K.N. GROUP SERVICES Ltd. 23 Feb., 1967 [25 Feb., 1966]. No. 8327/66. Heading B2K. [Also in Division C7] A process for inhibiting decarburization of steel bodies (e.g. ingots, blooms or bars) during heating (e.g. prior to hot working) comprises applying a coating comprising a suspension of china clay in an aqueous solution of an alkali silicate glass, optionally containing also a reducing agent such as aluminium powder and drying the coating prior to heating. For sodium silicate glass the ratio SiO 2 : Na 2 O is preferably greater than 2.5 to 1 and for a potassium glass the ratio SiO 2 : K 2 O is preferably greater than 2 to 1. In the Example the coating composition is 25% china clay suspended in an aqueous solution containing 37.8 % of a sodium silicate glass having a ratio SiO 2 : Na 2 O of 3.3 to 1 together with up to 1% of powdered aluminium. The suspension may be applied by dipping brushing or spraying and preferably provides a coating of 20 gms per square foot after drying.
Patent GB-453852-A (GB)
Title: Improvements in or relating to thermionic valve oscillator arrangements
IPC: H03B5/10
Filed: 1935-03-18
Abstract: 453,852. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and GEORGE, D. F., The Chalet, Shenfield Gardens, Hutton, Essex. March 18, 1935, No. 8442. [Class 40 (v)] A back-coupled oscillator giving considerable power output comprises a multi-grid valve with one grid employed for back-coupling, and with the frequency controlled by oscillations from a separate control oscillator applied to another grid. As shown, the control oscillator 41 is a screen-grid valve with a crystal 45 connected in series with a condenser 44 between the inner grid and the plate. The output is fed by the condenser 39 and resistance 38 to the inner grid 21 of the power oscillator valve 1, the outer grid 3 and plate 2 of which are connected as in the Hartley circuit to a tuned output circuit 4, 6 supplying a load 20a. The circuits are separated by screens 18 as shown. A shielding grid may be interposed between the grids 3, 21, Fig. 2 (not shown). In another modification, an isolating valve is interposed between the control oscillator and the power oscillator to prevent any reactive effect of the latter upon the former. The power oscillator may be tuned to a multiple or submultiple of the frequency of the control oscillator. The power oscillator may have a second tuned circuit coupled to the tuned circuit 4, 6 to give a band-pass effect.
Patent GB-1206815-A (GB)
Title: Improvements in or relating to mobile lighting apparatus
Inventor: APPELHANS HERMANN
IPC: F21S9/04
Filed: 1968-02-21
Abstract: 1,206,815. Lamps. POLYMA MASCHINENBAU DR. APPELHANS G.m.b.H. 21 Feb., 1968, No. 8460/68. Heading F4R. A transportable lighting means for illuminating extended areas comprises an electricity generating set 13 and an extending mast 2 at the top of which is a control platform 3. A frame 11 is hinged to the front of the platform 3 to support a set of floodlights 12, which are pivotable horizontally or vertically thereon and can be removed and placed in suitable holders when not in use. The apparatus is carried by a trailer. A ladder 10 is provided for access to the platform 3, which may be provided with railings (9, Fig. 4, not shown) separable at the centre of the horizontal bar (15), the uprights being hinged outwards and downwards at the sides of the platform 3.
Patent GB-1179442-A (GB)
Title: Improvements in Heat Insulating Lagging Elements
IPC: B29C44/18
Filed: 1967-02-22
Abstract: 1,179,442. Foam lagging elements. TECHNIGAZ. 22 Feb., 1967 [3 March, 1966], No. 8488/67. Heading B5A. [Also in Divisions F2 and F4] Method of making lagging elements comprises dipping a cellular framework 2 into a foam plastics medium 10, e.g. polyurethane, contained in a tank 6, prior to the onset of polymerization and foaming, and confining the framework on all its outer sides and faces to limit the expansion of the foam plastics to the overall size of the framework. At least some of the walls of the framework defining the cells have intercommunicating passageways opening towards the same side or running into the same major face of the framework, whereby air trapped by the rising foam can escape through openings 9 in a cover 7. The cover can be integral with the framework 2, and is made from plywood or laminated, compressed or agglomerated wood. The framework is made from paper, card, fibre, board, alloy or stainless steel.
Patent GB-313229-A (GB)
Title: Improvements in or relating to the amplification of electrical oscillations
IPC: H03F3/22
Filed: 1928-03-20
Abstract: 313,229. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). March 20, 1928. Transformers. - Electric oscillations are amplified by impressing them on the input circuit of a thermionic valve V, and preventing the direct-current component in the output circuit influencing the secondary winding of an output transformer T2. The primary winding of the output transformer consists of two oppositely connected parts, of which one a is traversed by the anode current and the other b by a direct current only, to compensate the influence of the direct component of the anode current on the secondary winding.
Patent GB-1442719-A (GB)
Title: Method and apparatus for preventing metling of stopped yarn in a texturing jet device
IPC: D02G1/16
Filed: 1974-02-26
Abstract: 1442719 Texturing yarns ALLIED CHEMICAL CORP 26 Feb 1974 [23 April 1973] 8645/74 Heading D1F In a yarn texturing jet wherein a high temperature fluid e.g. steam, nitrogen or carbon dioxide flows in tube 5 across the yarn entry 7 and normally through tube 6, melting of yarn upon stoppage thereof is prevented by apparatus comprising a sensor 1 which detects stoppage and actuates a. valve 2 to direct high pressure fluid e.g. cold air, nitrogen or water, to and through an orifice or a series thereof 4 opposite entry 7 to divert and dilute any undiverted high temperature fluid out of the jet through entry 7 and so that elements in the jet downstream from the entry are no longer heated by the hot fluid. The sensor may be a feeler arm or roller contacting the continuous running yarn or a device sensing feed roll stoppage and/or an electrical capacitance or optical detector.
Patent GB-823689-A (GB)
Title: Improvements in or relating to heat pump apparatus comprising a pressure exchanger
IPC: F04F13/00
Filed: 1955-03-24
Abstract: 823,689. Refrigerating drying air. SPALDING, D. B. March 21, 1956 [March 24, 1955(2)], Nos. 8659/55 and 8660/55. 8660/55. Classes 29 and 34(1) [Also in Group XXVIII] Heat pump apparatus includes a pressure exchanger cell assembly 10 in circuit with a low temperature heat source 25, a heat input means 20 for increasing the heat energy of the fluid contents, of the cells and a heat sink 23 for rejecting heat at a temperature intermediate the temperatures of the low temperature heat source 25 and the heat input 20; the sink 23 is connected through a throttle 24 to the source 25. In a modification the contents of the cells remaining after closure to the port 22 are withdrawn, cooled and returned to the cells. The working fluid may be dichlorodifluoromethane. In a modification separate refrigerant (e.g. hydrogen) and working fluids are employed. The flow through the circuit may be aided by ejectors. Air may be used in an open circuit arrangement and direct heating with combustion gases, entering the cells may be employed. The heat input may be supplied by a second pressure exchanger. In a modification a drying chamber 160, Fig. 14, is in circuit with a pressure exchanger having a heat input stage 116 and a heat sink 119 so that moisture laden fluid from the drying chamber 160 passes to the pressure exchanger, liquid being condensed in the sink 119 and separated in a separator 157 while fresh air is drawn into the chamber 160. In a modification a pressure equaliser in which steam, and fluid drawn from the drying chamber are mixed, is used, the resulting mixture being condensed in a heat sink in the drying chamber.
Patent GB-550534-A (GB)
Title: Improved plastic sheeting and its applications
IPC: B44C1/24
Filed: 1941-07-10
Abstract: 550,534. Polyvinyl acetal sheets. DU PONT DE NEMOURS & CO., E: I. July 10, 1941. No. 8705. Convention date, July 10, 1940. Drawings to Specification. [Class 2 (iii)] [Also in Groups XVI and VIII]. Plastic sheeting, e.g. of plasticized polyvinyl acetal resin, which is especially applicable to the manufacture of safety glass, is constructed so as to prevent layers from adhering together in transport and to facilitat e attachment to sheets of glass by embossing the material on one or both sides with a number of small, projections and recesses. The total area of the projections is less than 50 per cent. and preferably between 10 per cent. and 25 per cent. of the whole surface and the width of each projection is between 0.002 and 0.006 inch', the height being at least 0.0002 inch. The polyvinyl acetal resin (analysing polyvinyl alcohol 18.9 per cent. polyvinyl n. butyral 79.6 per cent. polyvinyl acetate 1.5 per cent.) may be plasticized with di-butyl sebacate or triethylene glycol 2-ethyl butyrate.
Patent GB-466056-A (GB)
Title: Improvements in and relating to means for supporting and/or positioning lighting globes and the like
IPC: F21V17/00
Filed: 1936-03-24
Abstract: 466,056. Globe &c. holders; securing globes &c. to holders. GENERAL ELECTRIC CO., Ltd., and VILLIERS, W. A. March 24, 1936, No. 8765. [Class 75 (ii)] A lipped globe, shade, or reflector is secured to a gallery or holder by means of one or more members which extend through holes in the gallery and are retained therein by the engagement of part or parts'of the members with the inner edge of their associated hole due to resilience of the members. In the form shown, each member comprises a clip 5 formed from a resilient strip of metal bent to the shape of a U with the arms 6 splayed apart. The arms 6 pass through holes 2 in the outer flange 1. of the gallery and engage the lip 4 of the globe. Each clip may be formed with a bulged head 8 to prevent it passing through the hole 2, and with bulge portions 7 which are spaced from the head 8 by a distance 9 substantially the length of the hole 2, so that, with the clip in position, the inner and outer edges of the hole are engaged by the bulges 7, 8. After insertion, the ends of the arms 6 may be turned over to provide stops which prevent the complete withdrawal of the clips. The gallery is formed with an inner flange 3 forming a trough to trap rain water which drains away through holes 10 in the bottom of the trough. The gallery may be used in the inverted position.
Patent GB-782594-A (GB)
Title: Improvements in non-return valves
Inventor: WILLIAMS DERRICK JOHN
IPC: F16K15/06
Filed: 1955-03-25
Abstract: 782,594. Valves. HIGH-PRESSURE COMPONENTS, Ltd. March 1, 1956 [March 25, 1955], No. 8810/55. Class 135. In a non-return check valve comprising two coaxially arranged body parts 1, 2 screwthreadedly connected together and a valve member 7 slidable in one body part and urged by a spring 8 into engagement with a resilient seat ring 12 mounted in a recess 11 in the other body part, a projecting annular surface 9 surrounding the recess engages a complementary surface 10 on the valve member to prevent undue deformation of the ring. The ring which also provides a seal between the body parts is further prevented from being unduly deformed by metal-to-metal engagement between the body parts. When the valve is open flow takes place through spaces between the valve member and the body part 2 and radial slots or holes 14 and also through inclined holes 15. Specification 705,063 is referred to.
Patent GB-444363-A (GB)
Title: Improvements relating to the manufacture of india rubber articles by extrusion
IPC: C08J5/02
Filed: 1935-03-21
Abstract: In the manufacture of rubber-cellulose threads, tubes, rods or the like by extrusion into a coagulant, viscose is mixed with colloidal sulphur, water-soluble accelerator and mineral matter such as zinc oxide, in a colloid mill in the absence of or with exclusion of air, the mixture being then incorporated with latex while excluding air. The viscose preferably contains 7 per cent by weight of cellulose, the resultant mixture containing 2 per cent of cellulose calculated on the dry rubber.  The mixture can be pumped in gear type pumps as it does not deposit solids on the pump surfaces.  Specification 7302/09, [Class 70], is referred to.ALSO:In the manufacture of rubber-cellulose threads, tubes, rods or the like by extrusion into a coagulant, viscose is mixed with colloidal sulphur, water-soluble accelerator and mineral matter, such as zinc oxide, in a colloid mill in the absence of or with exclusion of air, the mixture being then incorporated with latex while excluding air.  The viscose preferably contains 7 per cent by weight of cellulose, the resultant mixture containing 2 per cent of cellulose calculated on the dry rubber.  The mixture can be pumped in gear type pumps as it does not deposit solids on the pump surfaces.  Specification 7302/09, [Class 70], is referred to.
Patent GB-1012383-A (GB)
Title: Multi-flow centrifugal pump
IPC: F04D13/14
Filed: 1963-03-06
Abstract: 1,012,383. Centrifugal pumps. MASCHINENFABRIK ANDRITZ A.G. March 6, 1963 [May 24, 1962], No. 8898/63. Heading F1C. A multi-flow pump has at least two similar or substantially identical centrifugal pump units mounted the same way round with their rotors on a common shaft and their outlets connected in parallel to a common delivery pipe. A number of pump units 1 are connected in parallel between the suction pipe 6 and delivery pipe 7. The units 1 and driving motor 5 are mounted on a cast or welded base plate 4. In alternative embodiments (not shown) a group of five units 1 is arranged at each end of the motor 5, or two such groups separated by a bearing are arranged at one end or at each end of the motor 5.
Patent GB-935633-A (GB)
Title: Pressure-responsive apparatus
IPC: G01L7/00
Filed: 1962-03-08
Abstract: 935,633. Pressure transducers. BENDIX CORPORATION. March 8, 1962 [March 24, 1961], No. 9026/62. Class 106 (2). A transducer for converting a variation in pressure to the measure of a flight condition, e.g. altitude, air speed, Mach number in an aircraft, comprises a pressure responsive capsule 10 whose movement is transmitted by a flexible link 12 pivoted by a pin 14 on an eccentric 15. Fixed to the eccentric 15 is an arm 17 with a follower pin 18 which bears on a fixed cam 21. A lever 13 which rotates a shaft 11 to indicate the flight condition is pivotally connected to the eccentric 15 by a pin 16. A bimetallic temperature conpensating element 19 is provided between the lever 13 and the pin 16 to compensate for temperature variation. In other embodiments, not shown, two separately mounted pressure responsive capsules are provided and the cam is mounted on one of these. Both capsules may be responsive only to the static pressure or one may be subjected internally to the dynamic pressure due to motion. An alarm may be given when the measured flight condition exceeds a certain value.
Patent GB-843638-A (GB)
Title: Improvements relating to motor vehicle hoods
Inventor: JENSEN RICHARD ARTHUR
IPC: B60J7/12
Filed: 1958-03-21
Abstract: 843,638. Folding hoods. JENSEN MOTORS Ltd. March 21, 1958, No. 9059/58. Class 108(1). A folding hood having a hook type engagement at front and rear edges with the vehicle body has a hoop stick 25 pivoted on the main hoop stick 11 and is moved clockwise to take up the slack in the hood material necessitated by the hook type fixings.