baber/WOPTO huggingface dataset:
Patent GB-887972-A (GB)
Title: Preparation of alkali metal polysilicates
IPC: C01B33/32
Filed: 1958-04-22
Abstract: An aqueous dispersion of alkali metal polysilicate fibrils having an average molecular weight of at least 5,000 and suitable for drawing or spinning glass fibres is prepared by adding a glass-forming or metal oxide to an aqueous sodium and/or potassium silicate solution having a silica:sodium and/or potassium ratio of 2-5 to form an alkaline composition and evaporating at least 10% of the water in said composition by applying heat at a point remote from the evaporation surface.  "Glass-forming or metal oxide" is intended to include (a) compounds decomposing to form such oxides and (b) compounds formed from oxides such as boria and aluminia, both of which are glass-forming, and to exclude sodium and potassium oxides and silica, although the latter may be present additionally.  The oxides may be used in admixture, mixtures of oxides of two or more of B, Al, Zn and Mg being mentioned, or as a single oxide, e.g. molybdena (which in Ex. 2 is formed in situ from ammonium molybdate) or tungstia.  Oxides of the following elements are also mentioned: Ca, Ba, Sr, Be, Co, Ni, Fe, P(P2O5), As(As2O3, As2O5), Sb (Sb2O5), Zr, Ti, Pb and Sn, as are the following compounds: NaBO3, H3BO3, Na3AsO4, K2HPO4, (NH4)2MoO4.  Specifications 796,237 and 829,559 are referred to.
Patent GB-1351924-A (GB)
Title: Method of manufacturing solid aluminium capacitors and capacitors obtained by this method
IPC: H01G13/00
Filed: 1973-03-16
Abstract: 1351924 Electrolytic capacitors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 March 1973 [20 March 1972] 12731/73 Heading H1M A method of manufacturing an electrolytic capacitor comprises punching from an aluminium sheet a series of strips 7 each comprising plates 13 interconnected by bridge portions 17, the strips extending perpendicularly to carrier ribbon 5 to which they are attached by connecting tags 9, etching the plates, folding the plates of each strip upon themselves to form a folded stack (Fig. 6), anodizing the plates, depositing a semi-conductive layer thereon by pyrolysis of manganese nitrate, applying a graphite and a silver layer thereto and severing capacitor elements from the carrier strip. Preferably, before forming, e.g. during the punching operation, connecting tag 9 is folded to form a dam 19 which helps to prevent the manganese dioxide layer from contacting the unanodized part of tag 19 to which the anode lead is to be attached. The capacitors may be encapsulated, suitably as far as the cut edge of tag 9 which provides an abutment surface when the capacitor is mounted on a printed circuit board.
Patent GB-343823-A (GB)
Title: Improvements in or relating to apparatus for circulating water through marine condensers
IPC: F28B9/04
Filed: 1930-04-25
Abstract: <PICT:0343823/III/1> A circulation system for a marine condenser includes a conduit having an inlet acting as a scoop at the exterior of the ship's hull, the conduit increasing in area in the direction of the flow of water to effect a velocity pressure conversion.  One or more guide blades may be provided in a curved connecting portion extending beyond the hull.  The inlet for the condenser is constituted by a scoop 13 parallel with the ship's hull 10 and at its curved portion 15 where it passes through the ship's framework a guide vane 16 is used.  The cross-sectional area of this pipe increases until the valve on the condenser is reached. In the complete installation where a turbine 41 is mounted on a condenser 42 the inlet 43 and the outlet 44 are coupled to pipes 48, 55 and have valves 52, 54 respectively.  On the inlet side the entry 46 projects beyond the hull and is abruptly changed in direction so as to be free from the interference with the transverse frames 12.  In this case entrance vanes 49 are provided and side guards 51 fitted to the hull. A circulating pump 53 may be provided as a standby.
Patent GB-914430-A (GB)
Title: Method for mounting of plastic sheet material, particularly as ceiling covering in a room, and tool for accomplishing the method
IPC: E04F13/00
Filed: 1961-04-10
Abstract: 914,430. Ceiling coverings. BERGSTROM, N. E. L. April 10, 1961 [April 12, 1960], No. 12780/61. Class 20 (4). [Also in Group XXIII] In a method for mounting plastic sheet on a ceiling or other surface, the plastic sheet is fastened at one of its edges to a lath 4 and the sheet is wrapped at least once around one of the edges of the lath so that at least one side of the lath is covered thereby. A tool comprising a bar 9 having a substantially U-shaped crosssection, the legs of the U consisting of plates 7, 8 of different widths and extending in the longitudinal direction of the bar, is inserted with the plate 7 between the lath and the sheet so that the other edge 10 of the lath rests against the bar 9 between the plates 7 and 8. The tool with the lath and plastic foil is then lifted up to the intended place for fastening the sheet, as by a pneumatic lifting device 14, 15. The lath is then fastened to the ceiling by nails at the locations indicated by notches 11 in the plate 8 and corresponding to notches in the member 7. Thereafter the tool is removed and the lath is nailed closer to the ceiling.
Patent GB-924419-A (GB)
Title: Improvements in or relating to concrete and to aggregates therefor
Inventor: PEMBERTON ROBERT LEONARD
IPC: C04B14/06
Filed: 1960-04-11
Abstract: Sand for use in a concrete mix is treated by intimately mixing it with calcium hypochlorite to eliminate the deleterious effects of pyrite and marcasite in the sand.  Preferably a slurry of sand containing calcium hypochlorite is rendered alkaline by addition of caustic soda or lime, and the mixture aerated by agitation in the presence of air.  According to the Provisional Specification, the calcium hypochlorite may be replaced by one or more of potassium permanganate, potassium dichromate, sodium hypochlorite solution, or hydrogen peroxide solution.ALSO:Sand is treated during incorporation into a concrete mix by intimately mixing it with calcium hypochlorite, to eliminate the deleterious effect of pyrite and marcasite in the sand. Preferably calcium hypochlorite is added to a concrete mix containing Portland cement, water, and sand, with or without other aggregate and/or alkali, and aerating the mix by agitation in the presence of air.  According to the Provisional Specification, the calcium hypochlorite may be replaced by one or more of potassium permanganate, potassium dichromate, sodium hypochlorite solution, or hydrogen peroxide solution.
Patent GB-691852-A (GB)
Title: Improvements in process and device for obtaining threaded cavities inside concrete members
IPC: E01B9/12
Filed: 1949-05-13
Abstract: 691,852. Cores for threaded cavities in concrete cast in situ. SOC. TECHNIQUE POUR L'UTILISATION DE LA PRECONTRAINTE (S.T.U.P.) (PROCEDES FREYSSINET). May 13, 1949 [May 14, 1948], No. 12844/49. Class 20(ii) [Also in Groups V and XXX] To obtain a screw - threaded cavity in concrete, e.g. a railway, sleeper, a bridge is also referred to, a greased core 8 of the same shape as the screw to be used in the cavity is arranged in the mould before the concrete is cast, the thread of the core being covered with a helically wound strip 6 of malleable metal (e.g. aluminium or extra-mild steel) designed to line the whole surface of the thread of the cavity which will remain in the cast member when the core is withdrawn after the casting and setting of the concrete. For casting, the core 8 is held in the mould 9 by members 10 fixed (e.g. screwed) to the mould. The strip 6 covers the whole length of the thread and has an extension 6a which becomes embedded in the concrete after casting. The strip may have a smiliar extension at its other end. Wire helices 7a, 7b of different diameters may be arranged concentrically with the axis of the core and positioned either by fixing (e.g. welding) them to the extension 6a of the strip or by winding their ends tightly round the part 8b of the core; these helices reinforce the concrete surrounding the hole after casting. The metal strip may be wound direct on the core or wound separately on a mandrel and then transferred to the core. Specification 449,916, [Group XXIII], is referred to.
Patent GB-876175-A (GB)
Title: Improvements in or relating to means for use in re-railing a rail vehicle
IPC: B61K5/06
Filed: 1957-04-23
Abstract: 876,175. Re-railing rail vehicles. WILLIAMS, T. H. Feb. 20, 1958 [April 23, 1957], No. 12848/57. Class 104 (1). [Also in Group XXXII] For re-railing rail vehicles outside and inside ramp elements 2, 4, Fig. 1, having sloping surfaces 8, 10, and guide flanges 16, are secured to each rail 18, by means of bolts 30 passing, therethrough and through a base plate 6 positioned under the rail flange 24 and between adjacent sleepers 32. The maximum height of the ramp surface 8, Fig. 2, is level with the top 22 of the rail whereas the maximum height of the ramp surface 10 is level with the top of the web 26 of the rail. Tongues 20 of the elements abut the sides of the web 26. The base plate 6 may be integral with the outside element 2 and the inside element bolted thereto. In a modification the ramp elements may extends over three sleepers and be connected by two base plates. In another modification, Fig. 5, each axil is provided with opposed pairs of elements 2, 4, the inside elements 4 having integral base plates 6b and being permanently fixed to the track by spikes (not shown) passing through holes 34, and holes in lugs 35, into the sleepers 32. The outside elements 2 are retained on the base plates by upstanding lugs 36 and bolts 38. As a further modification, the inside elements are formed as double-ended units.
Patent GB-722088-A (GB)
Title: Improvements in and relating to hydraulic turbines
Inventor: SEEWER PAUL WERNER
IPC: F03B15/18
Filed: 1952-05-12
Abstract: 722,088. Hydraulic turbines. ENGLISH ELECTRIC CO., Ltd. May 8, 1953 [May 12, 1952], No. 12887/53. Divided out of 722,048. Class 110 (3). In a hydraulic turbine of the fixed propeller type or of the feathering runner blade type having hydrobrake vanes 8 which are normally held retracted in the runner body but which are projected therefrom by centrifugal force when the turbine reaches a predetermined overspeed, the hydrobrake vanes are mounted on pivots 9 which lie in a plane normal to the runner axis and are tangential to a circle within the runner body. Each of the hydro-brake vanes has a crescentshaped cross-section the chord of which lies substantially parallel to the axis of rotation of the turbine when the brake vane is in the projected position. The brake vanes are automatically retractable by means of springs as described in Specification 722,048. Specification 555,333 also is referred to.
Patent GB-567816-A (GB)
Title: Improvements in or relating to methods of and apparatus for forming fastener studs, and the fastener studs resulting therefrom
IPC: B21K1/44
Filed: 1943-08-10
Abstract: 567,816. Making fastenings. THOMPSON PRODUCTS, Inc. Aug. 10, 1943, No. 12906. Convention date, March 13. [Classes 83 (ii) and 83 (iv)] Forging-dies.-A fastener stud, as described in Specification 582,628, [Group XXV], having a head 13, Fig. 2, a cylindrical part 14, slots 15, and a flattened twisted part 16 terminating in a point 19, is made from a section of metal rod by forging a head at one end, milling a point at the other and then pressing between dies adapted to forge the pointed end into the required shape, thus ensuring that the stud surfaces most exposed to wear are defined by the sides of the metal grain bands. The final dies 32, 33, Figs. 11, 12, have aligning means 36, 38 and each have a semicylindrical recess 39 to receive the shank 14, a rib 40 to form a slot 15 and a shallow twisted recess 42 to forge the part 16. The die 32 has a stud support 35 spaced from its end 132.
Patent GB-123688-A (GB)
Title: Improvements in and relating to Sewing Machines.
Inventor: THOMPSON WILLIAM PHILLIPS
IPC: D05B27/04
Filed: 1918-08-09
Abstract: 123,688. Thompson, W. P., (Union Special Machine Co.). Aug. 9, 1918. Sewing-machines; presser-feet.-A presser-foot 8 for use with a two-needle machine for covering previously formed seams s carries a device 15 for stretching the fabric sections F, F' in advance of the needles 4, 5 and holding them stretched until the covering stitches have been applied thereto. For this purpose, the underface of the shoe 15 is formed with sets of oppositely inclined ribs 19, 20, and the shoe is yieldingly mounted by its stem 16 in a bridge portion 14 of the presser-foot, a spring 18 being adapted to depress the shoe over a limited range. A guide-fin 12 is formed on the presser-foot so as to run in the seam, and the shoe 15 is located between the needles and the fin, and co-operates with the front end of the feed dog, which has two bevelled parts 7<a> between which the shoe operates.
Patent GB-528214-A (GB)
Title: Improvements in fluid-sealing devices for shafts, bearings and the like
IPC: F16J15/32
Filed: 1939-05-01
Abstract: 528,214. Stuffing-box packing. ANGUS & CO., Ltd., G. (Freudenberg, H.). May 1, 1939, No. 12942. [Class 122 (v)] In a sealing washer c of moulded plastic material such as synthetic rubber having one surface of a peripheral part d a press fit in a relatively stationary part, a stiffening ring e is applied to the opposite surface of the part d and has circumferential ridges to grip the part d. The ridges g may be shaped like saw teeth to prevent withdrawal and corresponding ridges may be formed on the part d. In the latter case, if the ridges are in helical form, the ring can be inserted by a screwed action. A flange e<1> on the ring engages the edge of the washer, and a second flange e<2> may be provided to prevent escape of a garter spring f bearing against the sealing lip a. The ridges may be discontinuous circumferentially so as to prevent relative rotation of the parts c, e, or may be gapped so as to permit the ring to be inserted by a combined axial and circumferential movement. Further, the ring e may be in segments to facilitate insertion in the washer. In the arrangement shown in Fig. 10, the ring has a single ridge and a layer of material i sufficiently soft to receive the ridge is provided on the part d which is of harder material. The sealing lip a may be on the outside surface and the part d at the centre of the washer. Specifications 478,136, 479,743, and 499,480 are referred to.
Patent GB-369775-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/18
Filed: 1931-05-02
Abstract: 369,775. Safety razors. WATTS (SHEFFIELD & LONDON) Ltd., J. and WATTS, J. R., Lambert Street, Sheffield. May 2, 1931, No. 12970. Addition to 306,703, [Class 30, Cutlery]. [Class 30.] In a safety razor of the kind described in the parent Specification wherein the handle 16 is pivoted to the blade holder 12 and provided with means for retaining it at a desired angle to t h e blade 11, the blade is clamped by a T-headed stem 19, the head 20 of which is pushed axially against the pressure of a spring 26 through a slot 22 in the holder and blade and given a partial turn to bridge the slot and clamp to blade or its backing, the means for operating the stem comprising a knurled riveted finger grip 21 between the blade holder and the handle pivot 14. A tubular extension 25 on the finger-piece 21 co-operates with a hollow boss 23 attached to the blade-holder 12 to form a guide for the stem 19. One or both sides of the clamping head 20 or of the blade or of both may be bevelled so that rotary movement of the stem 19 automatically initiates its axial movement. The free ends 18 of the V-shaped handle pivot 14 are grooved to be sprung into apertures 17 in the blade holder and blade. The handle pivot has flats 28 engaged, to retain the handle in an adjusted position, by an adjustably spring-loaded plunger 29.
Patent GB-1459489-A (GB)
Title: Electric fuse device for an explosive device
IPC: F42C14/02
Filed: 1974-03-22
Abstract: 1459489 Electric delay fuzes DYNAMIT NOBEL AG 22 March 1974 [24 March 1973] 12996/74 Heading F3A An electric fuze for a hand grenade, comprises: a source of electric energy, e.g. a piezoelement or a battery; and an RC-delay element which delays supply of electric current to a firing element; the RC-element comprising a plurality of resistances and/or condensers which are arranged in series and/or in parallel and are connected to each other by electric lines, one or more of which are capable of being cut or sheared whereby one or more said resistances and/or condensers can be communicated or cut-off from communication respectively with the firing element and the delay time set accordingly. The RC-element is disposed in a housing composed of two relatively movable parts and the electric lines are formed into loops which can be sheared off, upon movement of the parts, by a knife in one of the parts. The housing parts are fixed in prescribed positions by a resilient detent whereby a prescribed delay time is set in accordance with a set position. The firing element is rotatable with one of the housing parts from a safe into an armed position. The RC- element is connected to a Zener diode and to a threshold switch comprising a thyristor. The piezoelement is actuable by a spring loaded hammer of the grenade.
Patent GB-431735-A (GB)
Title: Quick-break electric switch, particularly for prepayment meters
IPC: G07F15/00
Filed: 1934-05-01
Abstract: 431,735. Switch contacts. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and TILSTONE, G., 193, Corporation Street, Stafford. May 1, 1934, Nos. 13121 and 24329. [Class 38 (v)] An electric switch, suitable for use in a prepayment meter, has a movable contact 1 comprising a cylinder with centre C eccentrically mounted on a spindle 3 centre O. The cylinder 1 may be of copper with a contact strip 1<a> of silver. The fixed contact comprises a set of flat plates 2 mounted one behind the other and biassed towards the cylinder 1 by springs 10, 11, movement being limited by the engagement of pillars 7 with slots 2<b> in the plates. A contact part 2a of silver has a concave surface of less curvature than the cylinder 1 to ensure line or point contact. To close the circuit, the cylinder 1 is rotated in a clockwise direction to engage the part 2<a>. Further rotation causes the plates 2 to be moved against the bias of springs 10, 11 and the point of contact on the cylinder moves upwards towards the point B while on the plates 2 it moves downwards. Thus the final contact point is different from the point at which the circuit is made and broken. In a modification, the contact 1 is oval having two eccentrically arranged cylindrical surfaces, and is adapted to bridge two sets of contact plates such as 2.
Patent GB-836309-A (GB)
Title: Severing apparatus for vitreous tubing or rod
IPC: C03B33/06
Filed: 1958-04-25
Abstract: 836,309. Severing glass tubing. CORNING GLASS WORKS. April 25, 1958, [May 2, 1957], No. 13227/58. Class 56. In the severing of workpieces from a moving body of glass tubing moving at a uniform speed, an abrasive device is rotated about an axis normal to the path of travel of the tubing at a circumferential speed equal to the linear speed of the tubing with which it comes periodically into tangential engagement, the, device then being moved transversely of the tubing to sever it. The severing device is carried by a hub 21 fixed through a plate 14 slidably suspended between uprights 12, 13, on a base 11, from a screw 15 freely rotatable in a hanger 16 and threaded through a hub 17 integral with a member 18 bridging the uprights 12, 13. A tubular shaft 23 is mounted in bearings 24 in hub 21 and rotated from a variable speed transmission system through a belt 68 and pulley 65 for varying the circumferential speed of the abrasive device 60. A support 25 keyed to shaft 23 has rods 26 sliding therethrough bridged by a bar 28 above and a block member 29 below to which is secured a housing 30, springs 31 between support 25 and block 29 pressing downwardly. A chain 33 is secured to block 29 and passes round sprocket 35 on support 25, through shaft 23 and over an idler sprocket 36 carried on a lever 37 pivoted at 38 to a bracket 40 on hanger 16 to be adjustably secured to the transverse member 18, a swivel 39 in shaft 23 allowing rotation of the chain 33 to the left thereof. Lifting or lowering of hub 21 and shaft 23 by rotation of screw 15 lengthens or shortens the amount of chain 33 between support 25 and block 29 to vary the radial distance of the abrasive device 60 from the shaft 23 around which it rotates. The device 60 is mounted on an arm 50 pivoted in a slotted sleeve 49 and pressed downwardly by a spring 55 between arm 50 and a bracket 52, the sleeve 49 being pinned to a rod 46 sliding through housing 30, and having a roller 47 engaging a cam 48 for moving the abrasive device 60 across the tubing 61, the rod 46 being returned by a spring 34 in housing 30 pressing against a guide block 32 which prevents turning of the rod. The tubing 61, which is fed under the device 60 from the drawing apparatus, is supported immediately below the abrasive member 60 by a wheel 62 carried by a spring supported member 63. To shorten the effective length of chain 33 each alternate revolution, so that length of workpieces may be doubled, a gear 70 on shaft 23 meshes with a gear 71 of twice the diameter, the gear 71 having a cam 72 which swings lever 37 to the right when an eccentrically mounted shaft 73 through lever 37 is turned through 180 degrees to bring roller 74 in the path of cam 72. To positively break the workpiece from the body 61, the member 60 passes a wick fed with water so that the wet member 60 imparts a thermal shock to the hot tubing 61.
Patent GB-541952-A (GB)
Title: Improvements in caps or terminals of electric discharge tubes
IPC: H01J5/54
Filed: 1940-08-21
Abstract: 541,952. Discharge apparatus ; couplings. BRITISH THOMSON-HOUSTON CO., Ltd., and BOURNE, H. K. Aug. 21, 1940, No. 13269. [Class 39 (i)] [Also in Group XXXVI] In a discharge tube wherein a number of conductors 1 connected to the same electrode pass through a seal 3, the cap consists of two metal members 4, 5 between whose tapered surfaces the ends of the conductors are clamped when the members are drawn together The member 4 as shown is connected to the seal 3 and the two are drawn together by the nut and bolt 6. The member 5 may be in two parts engaged by a head or washer on the bolt 6. In a modification the second member screws on the outside of the first corresponding tapered parts receiving the conductors. In another form the conductors are clamped between a plug formed on a nut and a coned inner surface on the screw fixed to the seal. Radiating fins may be fastened on the cap to cool the seals.
Patent GB-1004947-A (GB)
Title: Improvements relating to the sampling of free flowing granular materials
Inventor: ROCKLEY HAROLD JAMES
IPC: G01N1/20
Filed: 1963-04-03
Abstract: 1,004,947. Sampling granular material. ROBERT BOBY Ltd. March 2, 1964 [April 3, 1963], No. 13277/63. Heading B8N. An apparatus for sampling free-flowing granular materials comprises a shoot for the material having an outlet in its floor 1a and a sampling tube 3 passing through the outlet and provided with an inlet 4 whereby proportional amounts of the material flow into the tube and thence, by gravity, out thereof into a container 6. The tube is rotatable in the shoot by means of a collar 5, so that the position of the inlet 4 may be altered in relation to the flow of material in order to vary the amount of sample material delivered. In the construction shown in Fig. 3, the tube is rotated by an electric motor 8 via a gear-box 9 and a train of elliptical gears 11, the latter gears providing means whereby the tube may be rotated rapidly during the time the inlet 4 is directed towards the flow of material; alternatively, by suitable positioning of the motor housing 7, the tube may be rotated slowly.