baber/WOPTO huggingface dataset:
Patent GB-1526340-A (GB)
Title: Photo-drafting equipment
IPC: G06K15/22
Filed: 1977-06-03
Abstract: 1526340 Photographic draughting apparatus QUEST AUTOMATION Ltd 28 Sept 1977 [28 Sept 1976 3 June 1977] 40334/77 and 23646/77 Heading G2A Projection apparatus, particularly for a photodraughting machine, includes an aperture-stop mask 18 which may be of disc form and includes at least one tapered slot 71 or 73. The slot is placed in the light beam and as the disc rotates the light is restricted as the speed of movement of the photographic surface decreases to maintain even exposure. When the movement ceases opaque areas 81 or 91 prevent exposure. Apertures 75, 79 provide extra exposure at the beginning or end of the line. The disc is controlled by the computer which controls the movement of the surface. In a modification, the disc has an annular area of progressively varying opacity.
Patent GB-1520312-A (GB)
Title: Time base compensator
IPC: H04N9/896
Filed: 1975-04-14
Abstract: 1520312 Television; controlling P.C.M. sampling times AMPEX CORP 14 April 1975 [25 April 1974] 23711/76 Divided out of 1520311 Headings H4F and H3H The subject-matter of this Specification is identical with that described in Specification 1,520,311, but the claims are concerned with apparatus for altering relative to a reference time-base signal the time-base of an information signal having a timebase component of known nominal frequency, in which apparatus there are provided a sampler for receiving and sampling the information signal in response to control signals; means for alternately coupling a first control signal and a second control signal to said sampler to effect sampling of the information signal, said coupling means being responsive to couple the first control signal to the sampler during an interval of the time-base component and to couple the second control signal to the sampler between successive couplings of the first control signal; means for providing said first control signal having a time-base determined by the reference time-base signal; and means for receiving the samples provided by the sampler during each said interval of the time-base component to generate therefrom the second control signal.
Patent GB-503586-A (GB)
Title: Improvements in radial flow elastic fluid turbines
IPC: F01D1/28
Filed: 1938-08-12
Abstract: 503,586. Elastic - fluid turbines. ALLMANNA SVENSKA ELECTRISKA AKTIEBOLAGET. Aug. 12, 1938, No. 23888. Convention date, Aug. 19, 1937. [Class 110 (iii)] In a double-rotation radial-flow elastic-fluid turbine having two or more axially spaced bladings in series, the steam chest 10 is situated at the same side of the turbine as the lowpressure blading 9, a connection from the steam chest to the high-pressure blading 7 being effected through openings 18 in the discs 5, 6 associated with the steam chest side. An overload or bleeding chamber 11 communicates with the centre of the low-pressure blading 9 through passages 17 in the labyrinth packing 12 and disc 5. A labyrinth packing 13 on the high-pressure side of the turbine is supplied with steam through a passage 16 for balancing end thrust.
Patent GB-342997-A (GB)
IPC: B21J7/44
Filed: 1929-11-12
Abstract: 342,997. Power hammers. PNEUMATIC DROP HAMMER CO., 141, Milk Street, Boston, U.S.A. Nov. 12, 1929, No. 24003/30. Convention date, Nov. 22, 1928. Divided on 342,024. [Class 83 (iv).] In a pneumaticdrop hammer comprising a hammerconnected to the piston rod of a piston working in a cylinder supported by a cross beam a wide sleeve fits the lower portion of the cylinder and is secured thereto and has flanges rigidly secured to the cross beam. The beam 1 is recessed at 2 to receive the lower portion 4 of the cylinder 3, which is screwthreaded outside at 5 to engage a threaded portion of the sleeve 6. A flange 7 is secured by bolts 8 to the beam 1, packing 9 being interposed to prevent leakage. The upper end of the sleeve 6 is counterbored and threaded at 10 and fitted with a gland 12 pressing upon packing 11 to prevent escape of fluid between cylinder and sleeve. The cylinder head 15 is bored to receive the top of the cylinder and is secured by bolts 14 to a flange 13 on the sleeve 6. A curved wall or baffle 17 on the head 15 prevents the expulsion of oil from the cylinder and holes 18 in the cylinder wall permit escape of air from the cylinder in case the piston rises too high. The piston head comprises a taper sleeve 25 fitting the tapered end 23 of the piston rod 22 and formed with a flange 26 recessed at 27 to receive an L- section packing ring 28 secured in position by a clamping sleeve 29, washer 30, nut 31 and split lock nut 32. A U-shaped packing ring 19 is disposed around the piston rod at the bottom of the recess 2 in the cross beam 1. Specification 342,024 is referred to.
Patent GB-1003043-A (GB)
Title: Electrode assemblies for electrochemical generators or accumulators
IPC: H01M50/489
Filed: 1962-06-22
Abstract: 1,003,043. Accumulators. YARDNEY INTERNATIONAL CORPORATION. June 22, 1962 [June 27, 1961], No. 24129/62. Heading H1B. A preformed positive electrode and a preformed negative electrode are each separately wrapped in layers of semi-permeable separator material, the outer layer of at least one of the wraps being a different bibulous sheet material (e.g. woven nylon fabric) acting as a wick. The positives 8 are wrapped by layers 4 and the negatives 10 by layers 6, the layers 4 being pleated so that the electrodes (8 and 10) are in a single stack. The invention is particularly directed to silver/zinc alkaline cells but may be applied, e.g. to silver/cadmium or nickel/ cadmium cells.
Patent GB-1519511-A (GB)
Title: Heavy duty aqueous wood preservative
IPC: B27K3/28
Filed: 1975-06-04
Abstract: 1519511 Wood preservative CANADIAN PATENTS & DEVELOPMENT Ltd 4 June 1975 [15 April 1975] 24135/75 Addition to 1458395 Heading A5E [Also in Division D1] A wood treating composition comprises an aqueous solution containing (a) a normally water-insoluble compound of zinc or zinc and copper with arsenic acid or arsenous acid in an amount of 0.1 - 4% by wt. (as metal) of the total aqueous solution, the molar ratio of zinc or zinc and copper (as oxides) to arsenic (as oxides) being 1.5 or more; (b) 0.15 - 10% by weight of the total aqueous solution of carbonate and/or bicarbonate ions in an amount of up to 150% of the zinc or zinc and copper; and (c) ammonia in an amount of 1-28% by weight of the total aqueous solution and sufficient to solubilise the normally water insoluble salt of zinc and copper, and the carbonate and/or bicarbonate.
Patent GB-1254685-A (GB)
Title: Swaged rod coupling
IPC: B21K25/00
Filed: 1970-05-19
Abstract: 1,254,685. Jointing by forging. SHUR-LOK CORP. 19 May, 1970 [18 June, 1969], No. 24187/70. Heading B3H. [Also in Division F2] In a connection between a rod 14 and a tube 10 the tube end 11 is swaged on to axially spaced external ribs 20 provided on the exterior of a sleeve 12 screwed on to the rod, each rib having at least one notch (23) (Fig. 3, not shown) so that the material of the tube displaced between ribs 20 holds against axial loads whilst the material displaced into the notches (23) prevents relative rotation of rod 14 and tube 10. The sleeve is of steel or comparably hard material. Relative rotation of sleeve 12 about rod 14 is prevented by an axial key (17) (Fig. 3, not shown). Alternatively the sleeve 12 may be provided with a radial flange (164) (Figs. 1, 6, 7, not shown) bearing against the tube end. A lock washer (161) has one or more radial tags (162) which engage in corresponding radial notches 163 in the flange. A lock nut (165) bears against the lock washer, and locking means (166) on the washer engage an axial groove in the rod.
Patent GB-252959-A (GB)
Title: Improvements in rotary car dumpers
IPC: B65G67/00
Filed: 1925-09-29
Abstract: 252,959. Wellman Smith Owen Engineering Corporation, Ltd., (Case, A. F.). Sept. 29, 1925. Rotary tipplers.-In a tippler provided with an apron plate 13 at the discharge side of the cradle over which the coal flows into hoppers 18, the apron plate is provided with openings 19 near each end so that coal discharged from near the ends of the wagon passes through these openings instead of falling beyond the ends of the plate. This part of the coal is discharged before that from the middle of the wagon has accumulated on the apron plate sufficiently to pass over the edge 13<c>, and this preliminary discharge helps to fill the centre portion of the hopper and to obviate the piling up of coal at the ends. The apron may have narrow side plates 13a, 13b.
Patent GB-407042-A (GB)
Title: Improvements in or relating to electrical converting arrangements comprising mercury arc rectifiers
IPC: H02M7/06
Filed: 1932-08-31
Abstract: 407,042. Converting; transformer systems. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, GARRARD, G. C., and RENNER, H. H., c /o General Electric Co., Witton, Birmingham. Aug. 31, 1932, No. 24312. [Classes 38 (ii) and 38 (iv).] Relates to the voltage regulation of a rectifier 1 and consists in connecting the secondary windings 6, 7, 8 of auxiliary transformers 9, 10, 11 in the supply leads to the primary of the main transformer 2 so as to inject a bucking voltage dependent on the load. The core of each auxiliary transformer is provided with an additional limb II which forms a shunt path between the primary and secondary windings. Mounted on this limb are voltage coils 20, 21, 22 connected across the load circuit 18, 19, and current coils 15, 16, 17 connected in series with the load circuit. At no load the voltage coils saturate the limbs II so that the bucking effect is largest. As load increases the saturation is reduced, the current coils acting in opposition to the voltage coils, to reduce the bucking effect. In a modification of this no shunt path or voltage coil is provided and the current coil is arranged on the same limb as the secondary winding. As the load increases the voltage buck is reduced by saturation of the core increasing. To prevent too large a magnetising current flowing when the core is saturated, chokes are connected in the supply. leads to the primary windings. In a further modification, to avoid unbalance, the shunt limb is divided longitudinally and the control winding is arranged on the two parts to produce fluxes in opposite directions so that the limb has the same reluctance in each direction. In another modification, to avoid unbalance, part of the primary and part of the secondary are arranged on each of the outer limbs of a three limbed core, the centre limb carrying the control winding. A further arrangement is described for use with a main transformer having a mesh connected primary.
Patent GB-789737-A (GB)
Title: Improvements in or relating to the manufacture of concrete
Inventor: RULE TOM EDGAR
IPC: C04B7/17
Filed: 1954-08-20
Abstract: Concrete, containing ground blast furnace slag of composition 40-50 per cent lime, 14-16 per cent alumina, 29-33 per cent silica, is made by first slurrying the finely ground slag in water, dewatering it to a readily transportable paste having a moisture content of 17 per cent or less, and from which air is excluded, and finally remixing the paste with water, aggregate, and Portland cement or lime.
Patent GB-779267-A (GB)
Title: Improvements in and relating to indicating, measuring or control apparatus
IPC: G01D5/12
Filed: 1954-08-23
Abstract: 779,267. Electric measuring systems. FOSTER INSTRUMENT CO., Ltd., and OUGHTON, H. G. July 14, 1955 [Aug. 23, 1954], No. 24454/54. Class 40 (1). A self-balancing bridge or differential system, e.g. as shown (Fig. 1), an A.C. bridge with a temperature-sensitive resistor Rx in one arm whose unbalance voltage is amplified at A to energize motor M1 which rebalances the bridge by moving the slider of potentiometer Rs and simultaneously drives a pointer P, has an associated failure alarm circuit comprising a continuously running motor M2 driving two cams, the first cam C1 cyclically unbalancing the bridge by an amount sufficient to cause the pointer P to move to the end of the scale and open a switch S3 just after the second cam C2 closes a switch S2, thereby opening an alarm circuit through terminals T1, T2 which would be completed if pointer P were not responding to an unbalance in the bridge circuit. Any control action produced by the bridge is suspended during the alarm test by a switch S4, also operated by cam C1, which opens the control circuit during the test. The motor M2 may have a centrifugal alarm switch which closes the alarm circuit at T1, T2 when the speed falls below 90 per cent normal.
Patent GB-188451-A (GB)
Title: Improvements in and relating to apparatus for and method of making silica glass
IPC: C03B5/225
Filed: 1921-09-14
Abstract: 188,451. British Thomson-Houston Co., Ltd., (General Electric Co.). Sept. 14, 1921. Resistance furnaces.-A vacuum furnace for use in making silica glass comprises a tank 1 which is provided with a pipe 15 for evacuation of the air and may be fitted with a water jacket 7. The silica is contained in a cylindrical graphite crucible 8 supported within a helical resistance 9 that is provided with terminals 10, 11 supported by water cooled tubes 12, 13. The resistance is surrounded by a heat screen 14 consisting of a shell of carbon containing a refractory material. The furnace may be fitted at its upper part with a removable column 4 through which a shaft 5 carrying at its end a piston 6 may be introduced for compressing the plastic silica. Alternatively, the silica may be compressed by gas introduced into the furnace through the pipe 15.
Patent GB-222669-A (GB)
Title: Improvements in brakes for wheels, revolving drums and the like
IPC: F16D49/10
Filed: 1923-10-04
Abstract: 222,669. Lamb, A. V. Oct. 4, 1923. Band; compensating for wear.-A brake band 4 is fitted with two lugs 2<a>, 3 for attachment of lever tightening mechanism 15, 20. The lug 3 is fitted to one end of the band 4, but the lug 2<a> merely rests upon the other end, being connected by an adjustable link 18 with a lug 2 fixed to the band 4. Rotation of the band in either direction is prevented by arms a, b projecting laterally from a fixed bracket 5.
Patent GB-504440-A (GB)
Title: Improvements in railway vehicle trucks
IPC: B61F5/32
Filed: 1938-08-22
Abstract: 504,440. Railway - vehicle bogies. SYMINGTON GOULD CORPORATION. Aug. 22, 1938, No. 24685. Convention date, Jan. 20. [Class 103 (vi)] In a railway - vehicle truck or bogie the axleboxes and side-frames are provided with co-operating cylindrical surfaces to permit a limited horizontal angling of the side-frames relative to the axle-boxes, while the interposed stipporting spring assemblies are constructed to minimize friction during such angling and also to secure the springs against displacement in their housings. As shown in plan in Fig. 2. the axle-boxes are provided with part-cylindrical surfaces 37 which are guided within correspondingly curved flanges 38 projecting laterally from the side-frames 1. Interposed between the tops 24, Fig. 1, of the axle-boxes and the side-frame compression members 3 are combined spring and friction units 30, which are fitted at their ends with spring caps having frusto-conical or like convex surfaces 35 abutting against flat surfaces 36 on the axleboxes and side-frames. Between the curved surfaces 37 the axle-boxes are formed with main vertical walls 27 terminating in curved flanges 39, 391 partially embracing the coils of further supporting springs 29, which are inserted between integral shelves 41 on the axle-boxes and seats 22 formed on the sideframes. The shelves 41 and seats 22 are concaved to coact with convexed spring-caps 46, Fig. 4, of the springs 29 to permit a frictionless rocking movement of the springs when angling occurs, while the caps 46 are furnished with pins 51 projecting through apertures in the shelves 41 and seats 22 to prevent displacement of the caps. The closure surfaces for the springs 29 are completed by curved surfaces 23 formed on the sideframes, the clearance between the surfaces 23, 39<1> determining the permissible extent of the angling. Specification 504,439 is referred to.
Patent GB-1370854-A (GB)
Title: Assembly and process for manufacturing tubes of pvc and tubes obtained by the process
IPC: B29C48/90
Filed: 1972-05-25
Abstract: 1370854 Tube extrusion die ARMOSIG 25 May 1972 [26 May 1971] 24758/72 Addition to 1315585 Heading B5A An extruded tube 12, of expanded polyvinyl chloride, is sized in passage through a sizing die 3, to which it is delivered from an extrusion die having an annular flow passage the external and internal diameters of which, in the downstream direction, progressively increase (L1), are substantially constant (intermediate L1 and L2), progressively decrease (L2) with the de. crease of the external diameter being at least 30%, and are constant at the die extrusion outlet passage (L5), with a section L4 intermediate L2 and L5 in which the internal diameter increases, and the external diameter is constant over at least part of the length of the section along which the passage section area preferably decreases by 10 to 40%. The combined length of sections L4 and L5 is 10 to 50 times the thickness of the sized tube. The sizing die 3 is fluid cooled, via conduits 15, the sizing diameter D thereof is 20 to 40% greater than the diameter D3 of the extrusion outlet, and the die 3 may be employed with a pressure within the extruded tube of atmospheric or above, or with vacuum sizing. The extruded tube may be moulded by blowing.
Patent GB-444793-A (GB)
Title: Improvements in or relating to boxes
IPC: B65D5/49
Filed: 1935-09-05
Abstract: 444,793. Boxes. STEVENSON & SONS, Ltd., H., and PARKER, F., Victoria Mills, Pollard Street, Manchester. Sept. 5, 1935, No. 24782. [Class 18] A box comprises a bottom member b, a lid, and one or more trays secured by horizontal hinges to the lid or to the member b and adapted to be moved horizontally in a longitudinal or transverse direction to provide access to the contents of the member b. A plurality of superposed trays may be employed. The back c<1>, Fig. 2, of a tray may be connected to a hinged lid so that, as the latter is raised, the tray slides backwards and it can then be tilted into a vertical position, or the trays c<4>, c<5>, Fig. 5, are connected by hinges d to the side walls of member b so that they can be slid horizontally outwards and then tilted through 90‹.
Patent GB-697023-A (GB)
Title: Vehicle bumpers
Inventor: STEPHENSON CYRIL HEATH
IPC: B60R19/03
Filed: 1950-10-11
Abstract: 697,023. Making vehicle bumper-bars; jointing. WILMOT-BREEDEN, Ltd. Aug. 16, 1951 [Oct. 11, 1950], No. 24809/50. Classes 83 (ii) and 83 (iv). Vehicle bumper-bars are made by applying to one of the faces of a steel bar a, a thin strip b of corrosion-resisting metal, such as nickel or nickel alloy, of greater width than the bar, the strip being attached by an adhesive c, shaping the combined bar and strip to the desired form, and finally bending the projecting edges of the strip over the edges of the bar. The assembly may be chromium plated, or the strip only may be chromium plated and the back of the bar covered by a coating of protective paint. The adhesive may be of the phenol- or urea-formaldehyde type.
Patent GB-263933-A (GB)
Title: Improvements relating to the distillation of carbonaceous substances
IPC: C10B53/02
Filed: 1925-10-05
Abstract: 263,933. Davidson, T. M., and Patent Retorts, Ltd. Oct. 5, 1925. Carbonizing apparatus.- A portable carbonizing kiln is open at the top, and is provided with means for withdrawal of gases and vapours from below the combustion zone. Air is supplied to the charge, and the gases are withdrawn through refractory pipes b. Valves c<3> are fitted in the collecting pipes c<2> and closed successively as the distillation zone descends. Instead of using pipes b, vertical cavities may be provided in one of the side walls a<1> and covered on the inside with perforated plates, and horizontal cavities may also be provided; or separate pipes f may be used to admit air.
Patent GB-1107626-A (GB)
Title: A method of removing sulphur dioxide from gas containing sulphur dioxide
Inventor: EMICKE KLAUS
IPC: C01B17/775
Filed: 1965-06-11
Abstract: SO2 is removed from gases by passing them countercurrent to aq. H2SeO3 in at least two stages, the Se formed in the first stage being completely removed from the liquor circulating in this stage, and the SO2 being completely removed from the gases in the second stage. The first stage may be operated discontinuously adding fresh H2SeO3 intermittently, after withdrawing a portion of the exhausted liquor. The Se may be removed from the H2SO4 -containing soln. withdrawn from the first stage and oxidized to H2SeO3 which is used to maintain to H2SeO3 content in the second stage.  The product H2SO4 soln. may be concentrated by evaporation e.g. by passing the hot gases to be treated therethrough.  The second stage may be operated continuously and the H2SeO3 content may be maintained at above stoichiometric requirements e.g. at 42 g. SeO2/l, and the H2SO4 content may be kept to a minimum e.g. 77 g./l.
Patent GB-357729-A (GB)
Title: A new or improved hand tool for stapling papers and other articles
IPC: B25C5/02
Filed: 1930-08-20
Abstract: 357,729. Stapling hand-tools. BLANCKENSEE & SON, Ltd., S. and VINCENT, C. B., 15, Frederick Street, Birmingham. Aug. 20, 1930, No. 24853. [Class 89 (iii).] In a stapling device of the kind comprising a body member a serving as a magazine for the staples and a pair of jaws q, s, of which the jaw q, controlled by a light spring t, serves for holding the article to be stapled and for clinching the staples, and the jaw s, controlled by a heavier spring t<1>, operates the staple driver, the stapling head comprises a pair of spaced plates k, k secured at right-angles to the body a by means of lugs h. The driver l is guided between the plates and is operated by a nose s<1> on the jaw s which enters an aperture in the driver and operates in slots in the plates k. The staples are fed along a channel-shaped guide b within the body a by a pusher and a spring mounted on a rod f removably held in slots g in the guide. The foremost staple is normally supported by lugs z, Fig. 5, on a plate u adapted to slide in the head. The plate u first descends with the driver, and is only disengaged from the staple when the latter has been fully inserted. If the staple is not fully inserted, it is carried upwardly by the plate u in its return movement. The parts of the device are formed from pressed sheet metal.
Patent GB-1263627-A (GB)
Title: A device for the winding of fabrics
Inventor: BRIGHS FACUNDO FARELL
IPC: B65H75/18
Filed: 1969-05-15
Abstract: 1,263,627. Cloth-boards. VINARDELL S.A. 15 May, 1969, No. 24866/69. Heading B8R. A cloth-board reel comprises a tube 2 formed of flexible material, e.g. paper, rolled in several layers held together at the ends 3 by a layer 4 of synthetic resin which also serves to protect the ends of the reel. The layer 4 is applied in fluid form and allowed to harden.
Patent GB-676595-A (GB)
Title: New or improved appliance for the decoration of surfaces
IPC: B05C17/035
Filed: 1950-10-11
Abstract: <PICT:0676595/III/1> <PICT:0676595/III/2> A roller appliance for surface decoration comprises a container fitted internally with downward guides, a conveyer device removably inserted on these guides, the conveyer device comprising rollers carrying an endless conveyer belt and a tensioning device, a swingable mounting on the container for a pattern roller which can be applied to the surface whilst making driving contact with the conveyer belt and means mounted on the container for removing excess decorative medium from the conveyer belt. Referring to Fig. 1 the pattern roller 10 is rolled over the surface to be decorated so setting endless band 7 in motion and causing entraining strips 8, Fig. 3, to convey the coating material to the roller after excess has been removed by stripping rule 16 and regulating roller 12.