baber/WOPTO huggingface dataset:
Patent GB-226729-A (GB)
Title: Improvements in or relating to screw-drivers
IPC: B25B23/10
Filed: 1924-05-15
Abstract: 226,729. Howe, R. J. May 15, 1924. Screwdrivers. - A screwdriver provided with means for holding a screw or other part during insertion, comprises gripping points 18 carried by spring legs 17 formed in one with a sleeve 15 surrounding the stem 10 of the screwdriver. Limited movement between the stem and the sleeve is permitted by a slot 13 in the stem engaged by a tongue 14 on the sleeve. Closure of the points 18 to grip the screw &c. is effected by longitudinal movement of a sleeve 21 surrounding the sleeve 15 and the legs 17. In the form shown in Fig. 1, a tongue 28 formed on the sleeve 15 is adapted to protrude into a slot 22 in the sleeve 21 and, on rotation of the sleeve, to engage one of a. series of locking notches 27. In operation, the stem of the screw &c. is placed between the gripping points 18, the sleeve 21 lowered to lock the points 18 and the tongue 28 is engaged with one of the notches 27. The stem 10 is then depressed to cause its end 12 to engage the screw, this movement being allowed by the slot 13. In a modification, the slot 22 and the tongue 28 are dispensed with and protuberances 35, Fig. 9, are formed in the sleeve 21 to engage between the. legs 17. On depression of the sleeve 21, the tongue 14 is carried to the lower end of the slot 13 by the engagement of the sleeve with the legs 17, and when the sleeve 21 is raised, the engagement of the parts 35 imparts a similar movement to the sleeve 15.
Patent GB-1207266-A (GB)
Title: High-voltage generating apparatus
IPC: H02M3/335
Filed: 1968-03-12
Abstract: 1,207,266. Piezo - electric transformers. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 12 March, 1968 [28 Dec., 1967; 16 March, 1967; 17 March, 1967; 31 Oct., 1967 (2)], No. 12090/68. Heading H3U. [Also in Division H2] A high voltage rectifier arrangement for T.V. incorporates a piezo-electric transformer 1 (Fig. 1). In operation a flyback pulse is applied to a drive section electrodes 3, 4 and the electrical energy is converted to mechanical energy by electrostriction so that the bar is caused to vibrate in its # mode. Resonance occurs in the direction of the bar length and a piezo-electric effect is produced in the generator half of the bar, section 6, and a potential difference appears between an electrode 7 and ground. Step up A.C. voltage thus obtained is rectified by a diode 8 and smoothed by C9. As shown Fig. 3 the transformer is supported by lead wires 16, 17 attached thereto at its node of minimum displacement. The output electrode 7 is connected via a spring to rectifier elements 22, 23. The assembly is enclosed in a hermetically sealed container 24, which may contain an insulating gas e.g. sulphur hexafluoride (SF6). Other mounting arrangements are described, including one wherein the generator section is also supported at its node of minimum displacement and by a resilient ring member (e.g. rubber) (Fig. 5, not shown) which surrounds the transformer, the said member being fixed to the container walls. Alternatively, the transformer may be cylindrical. U.S. Specification 2,830,274 is referred to.
Patent GB-1241537-A (GB)
Title: Improvements in or relating to separator apparatus
IPC: B04C5/00
Filed: 1970-03-13
Abstract: 1,241,537. Hydrocyclone. BIRD MACHINE CO. 13 March, 1970 [29 April, 1969], No. 12159/70. Heading B2P. A vortex-type separator for removing impurities from a fibrous, e.g. waste paper, slurry comprises a tubular body 10 formed of a non- convergent section 12 and a frusto-conical section 14 having an included angle of 6- 12, the body 10 having a maximum diameter D of 4¢ to 10 inches. A tangential inlet 18 having a rectangular cross-section directs the slurry into the upper end of the section 12 in which is provided a helical scroll 20 for guiding the slurry below the inlet. The inlet has an area equivalent to that of a circle having a diameter in the range of 1 inch to 0.5 D. The combined axial lengths of the sections 12 and 14 is in the range of 5 D to 7.5 D. A vortex finder 22 for removing accepted slurry has an inlet spaced from the bottom of the slurry inlet 18 by a distance in the range of 0.5 D to 1.25 D and from the convergent section 14 by a distance of at least 0.25 D and has an inlet area diameter equivalent in the range of 1.5 inches to 0.75 D. The convergent section 14 has an outlet 16 for a rejected slurry fraction containing the impurities; the outlet has an area equivalent diameter in the range of 1.5 inches to 0.6 D for an included cone angle of 8 and above, whereas for an included angle of less than 8 the area equivalent diameter is the larger of 1.5 inches and the area equivalent diameter of the outlet of a convergent section of length (6.75 D)-1 inch. A sump 30, having a transparent wall 32, is connected to the outlet 16 via a frusto-conical tube 24, a gate valve 26 and an inlet 28. Water is fed under pressure through a tangential inlet 52 in tube 24 as elutriation liquid and through an inlet 54 in the sump inlet 28 to fill the sump and dilute the rejected fraction. A gate valve 34 is provided at the bottom of the sump. The valves 26, 34 are operated through levers 36, 38 and links 40, 42 either manually or automatically in timed sequence by motors 44, 46. Other dimensions are given
Patent GB-436668-A (GB)
Title: A corner cooking stove
IPC: F24C15/30
Filed: 1934-04-23
Abstract: 436,668. Cooking-stoves. MOLLER, O. P., 31, Glendale Avenue, Edgware, Middlesex, BROOKES, T. G., 14, Lyminge Gardens, Wandsworth Common, London, and MOLLER, V. M., 31, Glendale Avenue, Edgware, Middlesex. April 23, 1934, No. 12168. [Class 126] A gas, electric or oil cooking stove is constructed so as to fit into a corner of a rectangular room, and has two sides at 90‹ and a front c in three panels across the corner, the centre panel consisting of an oven door and frame extended forward by the two side panels which are at 90‹ to the sides of the stove and 135‹ to the centre panel. The products of combustion may pass from the oven through an outlet near the bottom to a flue j at the back. Cupboards with doors e may be provided on each side of the oven.
Patent GB-766823-A (GB)
Title: Magnetic recording surfaces
Inventor: PAGE LEWIS JAMES
IPC: G11B5/702
Filed: 1954-04-27
Abstract: 766,823. Magnetic structures. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 18, 1955 [April 27, 1954], No. 12182/54. Class 38 (2). A magnetic recording element is made by coating a surface, e.g. a drum, disc or tape, after cleaning and treating with emery, with a solution of magnetic oxide and epoxy resin such as is sold under the Registered Trade Mark " Araldite ", in acetone. The coating may be sprayed on and subsequently heated.
Patent GB-1395025-A (GB)
Title: Sensor for converting a physical pattern into an electrical signal as a function of time
IPC: H04N3/15
Filed: 1972-03-16
Abstract: 1395025 Imaging devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 March 1972 [19 March 1971] 12279/72 Heading H1K [Also in Division H4] A semi-conductor change-storage television camera (see Divisions H3-H5) comprising an n x n array of sensor elements P 11  to P 44  (i.e. n = 2), a matrix of storage elements M 21  to M 24  arranged in n columns and (n-1) rows and a row of n converter elements SR 2  to SR 4  forming a parallel-series converter in which each element P, M and SR comprises a pair of MOS transistors and a pair of storage capacitors C1, C2 as in Fig. 1 (not shown) is constructed by integrated circuit techniques in a body of N-type material. Islands of P-type material are formed in the body and are covered with an oxide layer which is thinner in the areas indicated by broken lines. Aluminium conductors are provided over the thinner areas. Incident light acts through the thicker oxide layer on the junction between the N-type body and the P-type island. Connections as at output terminal Z may be formed from P-type islands partly coated with oxide layers having a thin region surrounding a central recess, and a thick region surrounding the thin region. Elements SR1 to SR4 are formed with long narrow islands to facilitate rapid switching, whereas elements P 11  to P 44  are more nearly square and are smaller and closer together.
Patent GB-1149314-A (GB)
Title: Production of silage
Inventor: DRYSDALE ALEXANDER DOUGLAS
IPC: A23K3/03
Filed: 1967-03-16
Abstract: 1,149,314. Making silage. DIRECT NITROGEN Ltd. 23 Feb., 1968 [16 March, 1967], No. 12304/67. Heading A1F. In the production of silage from green crops such as grass, propionic acid is added, either at the harvesting or ensiling stage. In addition, formic and/or acetic acid may be added.
Patent GB-705292-A (GB)
Title: Improvements in or relating to the manufacture of shoes
IPC: A43B3/10
Filed: 1951-05-26
Abstract: 705,292. Moccasins. BRITISH UNITED SHOE MACHINERY CO, Ltd. (United Shoe Machinery Corporation). May 26, 1952 [May 26, 1951]. No. 12387/51. Class 17(2) A blank for use in the manufacture of i moccasin shoe has one portion 20 shaped to cover the bottom and sides of the forepart of a foot and a second tongue portion 22 integral therewith to constitute an insole at heel part and shank and separate from the first part by slits on both sides, so that the lower margins of the forepart may be secured to the underside of the insole portion. The outer edges of the wing parts 24, 26 are skived or bevelled near their toeward, ends to receive a plug or toe piece 32 (not shown). A reinforcement may be applied to the heel end portion of the blank when closed. For the attachment of a sole the moccasin is mulled or dipped in water and a last inserted in broken position and then expanded to stretch and shape the upper, and an outer sole is then laid on, the last removed and the sole secured by through-and-through stitches. The moccasin may' be of the Blucher type in which case the sides of the upper at the shank and heel parts are separate parts attached to the sides of the forepart, or the moccasin may be of the welt type.
Patent GB-1177283-A (GB)
Title: Flashers
Inventor: BLEIWEISS ARTHUR FAUST
IPC: B60Q1/38
Filed: 1967-03-16
Abstract: 1,177,283. Road traffic signals on vehicles. LEHIGH VALLEY INDUSTRIES Inc. 16 March, 1967 [24 March, 1966], No. 12415/67. Heading G4Q. In a thermomotive flasher 13 for vehicle signal lamps of the type having a snap element 14 and a pull ribbon 16 and contacts 17, 18 for cyclically making and breaking a load supply circuit in response to heating or cooling of the pull ribbon, the load supply circuit X, 17-19 and L is connected in a manner such that a load current sufficient to light the signal lamps does not pass thorugh the vane and pull ribbon. As shown when the emergency warning switch HS or direction indicator switch TS is closed the current through a relay coil 22 closes contact 24 so that the ribbon 16 is heated. The ribbon 16 expands and allows a contact 17 fixed to the vane 14 to snap away from the fixed contact 18 so that the lamps go out. The heater is now disconnected and allows the ribbon 16 to cool and after a certain time the contacts 17 and 18 are again made and the above cycle is repeated to flash the lamps. The flasher unit has a flexible connection 19 between the moving contact 17 and a terminal L and a pilot light can be connected in the earth circuit. The contact arrangement provides a flash rate substantially not affected by the load. In a modified flasher (Figs. 2 and 3, not shown), having normally open contacts (31, 32) a flexible connection (34) shunts the vane when the contacts are closed and load current flows. In further flasher units (Figs. 4-6, not shown), the heater 23 is removed and switching is achieved by heating the ribbon due to current passing through the ribbon and vane. The flash rate may be determined by a certain fixed load (L1, Fig. 4, not shown), competed to supply the heating current for the ribbon and the contacts of the flasher are then arranged to be connected to the load circuit (L2) requiring a large load. Alternatively flexible resistance connections (45, 53 and 54) may be arranged so that a part of the load current passes through the vane and ribbon but the main current is passed by contacts and the flexible resistance (45, 54) shunting the flasher.
Patent GB-453570-A (GB)
Title: Improvements in and relating to high frequency generating systems
IPC: H04B1/04
Filed: 1936-05-02
Abstract: 453,570. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 2, 1936, No. 12503. Convention date, May 3, 1935. [Class 40 (v)] A high frequency generator for supplying loads such as induction furnaces is fed directly from a power line without the use of transformers or iron cored reactors. The generator comprises a plurality of electron discharge devices each having a cathode connected to a corresponding side of the line and an anode connected through a choke to the opposite side of the line, the choke excluding the oscillations from the line. The Figure shows a three-phase line 4, 5, 6 connected to valves 9, 10, 11 which are connected in parallel to the tank circuit which is coupled to the load 8. In a modification, each of the valves is replaced by a pair of valves the anode of one being connected through a choke to one of the power lines and the anode of the other to the remaining power line.
Patent GB-995002-A (GB)
Title: Improvements in or relating to steel alloys
IPC: B23K35/30
Filed: 1962-04-02
Abstract: A steel alloy, for use as a filler material for welded joints between austenitic and ferritic steels, has the composition: - .Cr.7.0 -9.0%, .Mo.1.0 -2.5%, .C.0.12-0.25%, optionally one or more of V, W, Ti, B, Nb, Ta, N, Co up to 1.0%, Si less than 0.6%,  Fe and impurities such as Mn, S and P balance. Prior disclosures of similar steel alloy include one containing 7% or 8% Cr, 3% Mo and 1% Ti and the further alloying constituents Nb, Al, V and W. Specification 843,415 is referred to.
Patent GB-558906-A (GB)
Title: Improvements in and relating to containers for fragile articles
IPC: B65D5/49
Filed: 1942-09-09
Abstract: 558,906. Containers for ceramic ware &c. STEVENSON & SONS, Ltd., H., STEVENSON, H. J., and MOORE, E. R. Sept. 9, 1942, No. 12704. [Class 18] A container for glassware, ceramic ware, bottles &c. is provided with a set of compartments formed by a pair of blanks folded from cardboard or sheet as shown, the compartments thus being provided with top and bottom pads Such sets of compartments may be superposed in a container which may have one or more open ends or may be provided with closure flaps. Removable lids may also be used. Extension pieces may be provided on the partition blanks which form liners for the container.
Patent GB-258518-A (GB)
Title: Improvements in plough breast couplings
IPC: A01B15/10
Filed: 1926-05-18
Abstract: 258,518. Ransomes, Sims, & Jefferies, Ltd., and Newson, A. T. H. May 18, 1926. Tools, mounting adjustably and rigidly. - A coupling for connecting the rear part of a plough breast to the plough frame is provided with a breast seating adjustable for breasts of various angles. The seating may consist of a hemispherical washer 5 inserted in a corresponding recess in a lug 1 on a slotted coupling piece 15 adjustably bolted to a piece projecting from the frame. The washer 5 has a flat side for engagement with the breast 3, and a doubly flared hole 7 to receive the breast securing bolt 2. A similar hemispherical washer may fit into a recess in the outer part of the lug 1 to form a seating for the nut 8. In other arrangements one or both of the hemispherical washers may be replaced by one or more tapered washers adapted to be rotated into position. The slotted coupling piece 15 may be toothed along one side to engage corresponding teeth on the piece connecting it to the frame.
Patent GB-877925-A (GB)
Title: Improvements in or relating to optical sensing arrangements
IPC: G01B21/06
Filed: 1960-04-11
Abstract: 877,925. Photo-electric devices. LEITZ G.m.b.H., ERNST. April 11, 1960 [April 9, 1959], No. 12774/60. Class 40(3) [Also in Group XX] An optical sensing arrangement for sensing a movable raster by the derivation of two electric signals in quadrature comprises a fixed raster similar to the movable raster, an optical imaging system interposed between the rasters and forming in the plane of the fixed raster two partial images of the movable raster displaced relatively to each other and photoelectric receivers responsive to each partial image. In one embodiment the imaging system comprises a microscope objective 3, Wollaston prism 4 and telescope objective 5. Beyond fixed raster 2 is arranged a beam divider 7 transmitting perpendicularly polarized light and reflecting parallel polarized light to respective photo-cells 8, 9. The movable raster images separation is adjustable by displacing the prism along the optical axis. The corresponding photo-cell outputs may be used in known manner for counting the raster elements or measuring scale graduations. The prism may be replaced by a Savart plate. In another embodiment coloured partial images are used and are produced by a direct-vision prism or a diffraction grating, Fig. 2 (not shown).
Patent GB-400116-A (GB)
Title: Machine sets consisting of a radial cylinder internal combustion engine and a driven machine
IPC: F02B75/22
Filed: 1933-05-02
Abstract: 400,116. Resilient engine mountings. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. May 2, 1933, No. 12823. Convention date, July 11, 1932. [Class 122 (iii).] In a set consisting of a machine driven by a radial cylinder internal-combustion engine, the engine casing is mounted on the machine so that it can swing about the crank shaft axis, elastic members being provided to limit its movement. As shown, the radial cylinder engine 3 is rotatably mounted on rollers 4 on the flange 1 of the generator 2, its movement being limited by elastic members 7 bolted to the engine or generator and projecting into slots in the flange of the generator or engine respectively.
Patent GB-327874-A (GB)
Title: Improvements in means for treating the air supplied to carburettors or vaporizers of internal combustion engines
IPC: F02M25/022
Filed: 1929-04-26
Abstract: 327,874. Hassall, T. G. April 26, 1929. Addition to 286,387. Vaporizers, external.-According to the parent Specification, the air supply for a carburettor or vaporizer is drawn through a muff surrounding the exhaust pipe and then through a chamber containing a filter and an electric heater for use at starting. According to the invention, water vapour is added to the air either in the muff or at any point between the muff and the carburettor. As shown, the air supply of the carburettor g is drawn through a muff a surrounding the exhaust pipe b and a filtering and heating device f as described in the parent Specification, water vapour from the overflow pipe l of the radiator m being admitted through a conduit i to the pipe e connecting the muff a to the device f.
Patent GB-782628-A (GB)
Title: Improvements in devices on watercraft for facilitating manoeuvring in narrow channels, especially for tug-boats
IPC: B63H25/46
Filed: 1956-04-27
Abstract: 782,628. Steering ships. KNIEF, J. April 27, 1956 [Dec. 2, 1955], No. 12943/56. Class 114. In a ship adapted to manoeuvre in a narrow channel by being fitted with an arcuate tubular channel 3 athwart her forecastle and housing a propeller 4 the driving shaft 7 of which passes through the wall of the tube, the cross section of the tube adjacent the propeller is narrowed, nozzle fashion, radial fins 12, 13 extend inwards from the tube to check swirl in water flowing through the tube, the driving motor 9 is mounted on the top side of the tube, and the propeller and motor shafts 7, 10 are parallel to one another and geared together as at 11. The single, reversible propeller 5 is arranged asymmetrically in relation to the longitudinal medial plane of the ship and the ends of its blades are crescentshaped to act as weed cutters. The propeller shaft passes through a rubber bearing block 19, Fig. 3, channelled axially to provide for the passage of water, which acts as a lubricant, into a conical sleeve 23 provided with tangential ports 21 to adapt it to act as a centrifugal pump. In one part of the tube a diametrical fin 12 divides almost the whole length thereof into two channels ; in the other fins or ribs 13 permit removal of the propeller through the end thereof when horizontal bars 16 have been removed. At the ends of the tube, the ships' plating is bent inwards to form funnels 15 except at the part nearest the bow where it would cause resistance to the ship's motion. The ends of the tube are secured in the funnels, the thickness of the tube material forming a step 14 to assist flow out of the tube.
Patent GB-1494785-A (GB)
Title: Sheet receiving apparatus and process
IPC: B65H29/60
Filed: 1975-03-27
Abstract: 1494785 Directing and stacking sheets XEROX CORP 27 March 1975 [28 March 1974] 12943/75 Heading B8R  Sheets which have been printed on both sides are deposited in a series of bins 41 by movement of deflecting fingers 45. The orientation of the bins keeps the sheets in correct page order. Sheets which have been printed on one side only are collected in correct page number order by displacement of the bins for the orientation shown in dotted lines and use of deflecting fingers 44. The sheets are carried over the bins by suction belt transport 11.
Patent GB-1255269-A (GB)
Title: Method and apparatus for charging an internal combustion engine of the applied ignition type
Inventor: MAY MICHAEL GUILLERMO
IPC: F02B37/00
Filed: 1969-03-12
Abstract: 1,255,269. Charging I.C. engines; centrifugal blowers. M. G. MAY. March 12, 1969 [March 27, 1968], No.12959/69. Headings F1B and F1C. In a method of charging a spark-ignition I. C. engine having an exhaust driven turbocharger system for inlet air or mixture and a throttling device downstream of the charger the air or mixture is at least partially tapped off in a lower output range of the engine and in a higher output range but is not tapped off between these two ranges except under transient unstable conditions caused by a rapid decrease of engine load. Exhaust gas drives a turbine (not shown) connected by a shaft 50 to an impeller 22. The latter delivers compressed air through outlet 35 and pipe 24 which includes a choke tube 26 and valve 25. A nozzle 27 sprays fuel into the air-stream. The pipe 24 has pressure tappings 41, 43 which are connected through two-way valves 44, 46 to the chamber 40 of an outlet control device 31. Thus any one or combinations of the pressures sensed by the pressure tappings act on an inner face of a spring-loaded piston 33 which is also impinged on its crown 32 by the compressed air-flow. At predetermined pressure differentials on piston 33 the latter moves to uncover one or more outlet orifices 34 to by-pass air back to the inlet side of the charger 21. The device 31 prevents operation of the system below the surge limit of the charger 21 and limits the maximum engine output. Various modes of control by selective opening and closing of valves 44, 46 are described. The air outlet may also be opened when the exhaust pipe is above a predetermined temperature or may be positioned downstream of the throttle valve.
Patent GB-387650-A (GB)
Title: Improvements relating to ash collecting means for boilers having travelling grates
IPC: G01C13/00
Filed: 1931-05-02
Abstract: 387,650. Cooling furnaces. BORSIG GES., A., 19, Berliner Strasse, Tegel, Berlin. May 2, 1931, No. 13004. Convention date, Nov. 5, 1930. Void [Published under Sect. 91 of the Acts]. [Class 51 (i).] In a furnace having a travelling grate 1 with a pivoted ash stop 2 at the rear, the rear wall of the furnace is provided with cooling tubes 3 through which water is circulated and such tubes serve to cool slag &c. passing through the passage 4 and accumulated in front of the stop 2 which is suspended adjacent the tubes 3.