baber/WOPTO huggingface dataset:
Patent GB-1046639-A (GB)
Title: Improvements in dispenser cathode
IPC: H01J9/04
Filed: 1965-07-30
Abstract: 1,046,639. Thermionic cathodes; electron beam tubes. GENERAL ELECTRIC CO. July 30, 1965 [Aug. 17, 1964], No. 32794/65. Heading H1D. A miniature dispenser cathode for producing an intense electron beam comprises an openended capsule 1 filled with a sintered electronemissive material 2 providing an exposed emitting surface 4, and conductive supports 5, 6 secured to spaced points on the capsule for conducting heating current therethrough. The capsule 1 may be of W, Re or a 75% W-25% Re alloy. A powder mix of 63% W, 17% tungsten carbide and 20% Th is lubricated and pressed into the capsule in stages, and sintered by passing a heating current through the capsule or by vacuum firing, after which the open end of the capsule may be ground flat. Specific dimensions and sintering temperatures are given. Alternatively, the emissive material may comprise stable compounds of U, La or rare earth metals The conductive supports 5, 6 of Re, W or Ta are semi-circular to establish a heat-retaining cavity 9 around the capsule, and may be mounted in metal bushes extending through a ceramic plate of an electron gun support. The cathode may be used in an electron beam tube for writing charge patterns, e.g. the lines of a 3-colour diffraction grating on a deformable light-valve medium, i.e, a deformable oil or a thermoplastic tape. The electron beam may be continuously deflected transversely across a moving tape 30 by magnetic deflection coils 31, while input signals are fed to auxiliary electrostatic deflection plates 27 to modulate the velocity of this transverse deflection and so produce a varying charge density and deformation of the tape, Fig. 5 (not shown). The cathode is unharmed by the presence of carbonaceous vapours evolved from the tapes, suitable materials for which are given.
Patent GB-924763-A (GB)
Title: Process of stabilizing polyolefines against the action of light rays
IPC: C08K5/23
Filed: 1960-09-23
Abstract: Olefine polymers are stabilized against light by incorporating therein 0,01 to 5% by weight of the polymer, of an aromatic azo compound of the general formula <FORM:0924763/IV(a)/1> wherein R represents a hydrogen atom, or a halogen atom, or an alkoxy, alkyl, cycloalkyl, arylhydroxyl, hydroxyalkyl, hydroxyaryl, thioaryl, thioalkyl, mercapto, nitro, amino, alkylamino, dialkylamino, arylamino, diarylamino, aminoalkyl, aminoaryl, sulphone, sulphoxy, or heterocyclic radical.  If desired small amounts of a fatty acid salt of an alkali metal or alkaline earth metal may be incorporated in the polymer.  The polymer may be a low-pressure polymer of propylene, butene-1, 4-methyl-pentene-(1), or 5:5-dimethyl-hexene-1.  The compounds of the above formula may be made by reacting the desired substituted phenyl diazonium salt with a phenol, preferably ortho-, meta-, or paracresol.  Specifications 799,392, 799,823 and 801,031 are referred to.
Patent GB-1140577-A (GB)
Title: Multi-spindle threaded pump
Inventor: SKRABAK MICHAEL
IPC: F04C3/08
Filed: 1966-07-21
Abstract: 1,140,577. Generating screw pumps. SIGMA LUTIN, NARODNI PODNIK. 21 July, 1966, No. 32865/66. Headings B3B, B3K and B3T. [Also in Division F1] A multi-spindle meshing screw pump comprises two or more threaded spindles 21, 22, Figs. 1, 2, mounted askew in relation to each other, having equal threads 24, 25 rotating in the same direction and having the top edges of their threads intersecting without clearance to seal the chambers between the co-operating threads. The top threads of the spindles may, e.g. take the form of rotary hyperboloids with straight lines of intersection or other rotary bodies having straight or curved lines of intersection. When liquids with solids in suspension are pumped from an inlet 42 at low pressure to an outlet 28 at high pressure the solid particles, because the spindles rotate in the same direction, do not undergo any grinding, breaking, compression or other damage. Machining.-The threaded spindles 21, 22 may be pre-cut or pre-turned roughly to profile the full depth of the thread and finished with a hobbing tool 62, Fig. 5, having the same shape as the threaded spindles, but with the width of its teeth less than the width of the precut gaps. Initially the tool is inserted at the correct skew angle into the gaps of the workpiece to the full depth of the threads and the tool and workpiece rotated in the same direction at the same speed. The speed of the tool is then gradually altered to become either faster or slower then the workpiece whence the thread flanks are correctly machined to give lines or curves of intersection between the spindles which have no clearance. Another method is to feed the hobbing tool at a constant angle between the axes of the spindles starting from the outside of the workpiece and proceeding to the correct depth of thread with the tool and workpiece rotating at the same speed. After completion of the cut the tool is extracted along the same path and then displaced axially the correct amount to cut the other flank of the thread. The thread flanks produced by this method have a slight inaccuracy on the intersection lines or curves. In a further method, production is carried out on a lathe (see Fig. 7), with the workpiece set up with its axis about which it rotates at the correct skew angle with respect to the lathe bed. After the first chip has been removed by the cutting tool the tool is returned to its initial position and the process repeated until the tool leaves the range of engagement.
Patent GB-1048783-A (GB)
Title: Spliced belting
Inventor: WILSON CHARLES LOUIS
IPC: F16G3/10
Filed: 1965-08-03
Abstract: 1,048,783. Seaming non-metallic sheet material; laminates. AMERICAN BILTRITE RUBBER CO. Inc. Aug. 3, 1965, No. 33062/65. Headings B5K and B5N. Conveyer belting comprises (a) two carcass plies 10, 11 of textile material; (b) an intermediate layer 12 of rubber or other elastomeric sheet material located between the plies 10, 11; (c) outer cover plies 13, 14 of rubber composition or a synthetic resin enclosing the plies 10, 11; and (d) a spliced area in which the plies 10, 11 are severed and have butt joints 10<SP>1</SP>, 11<SP>1</SP> at longitudinal spaced locations in the belt and an insert 17 of rubberized or adhesively coated textile material overlaps and strengthens the butt joints 10<SP>1</SP>, 11<SP>1</SP> and fills a corresponding space provided by the removal of a section of the layer 12. The five plies of the belting are united in face-to-face contact by being cured or vulcanized under heat and pressure. Preferably, the plies 10, 11 comprise duck coated with adhesive and impregnated with rubber or synthetic resin. In splicing the belting, the plies are cut on a bias, Fig. 1 (not shown), and the layer 12 is exposed and a section cut away therefrom to provide a space in which the elastomeric material is wholly or partially removed to accommodate the insert 17. The latter may be of rubberized duck or of a woven textile having a polyester warp and a polyamide weft. Inserts 15, 16, which may have bevelled or undercut edges, are provided in the plies 13, 14 to cover the joints 10<SP>1</SP>, 11<SP>1</SP>. After assembling the parts as shown, they are consolidated under heat and pressure.
Patent GB-812206-A (GB)
Title: Improvements in or relating to induction heating furnace and method of heating
IPC: F27D11/06
Filed: 1956-10-31
Abstract: 812,206. Induction furnaces. LINDBERG ENGINEERING CO. Oct. 31, 1956 [Oct. 3, 1956], No. 33211/56. Class 39(3) Material -to be heated in an induction furnace is advanced from a loading opening to a discharge opening of a heating chamber by reciprocation of the chamber. As shown a ring shaped heating chamber 16, which may be of steel or aluminium, has inlet and discharge conduits 19, 21 and is housed within a metal shell 14 interrupted by insulating strips 15 to prevent current flow round the shell. The chamber is surrounded by refractory material 17, 18 and the shell, supported on rollers 12, is given a rotary reciprocating movement by a fluid motor 25, Fig. 2, not shown, such that material being heated is urged from the conduit 19 in the direction shown towards the discharge conduit 21. A conduit for gas extends into the chamber 16, and a thermocouple 29 connected to an indicating instrument is provided. Heating is induced in the chamber and the material it contains by current, preferably of high frequency, which energizes a primary winding 23 wound on a core 22. In a modification, Figs. 5, 6 (not shown), the chamber is helical in form and has its ends short circuited, alternatively the chamber may be made as a spiral.
Patent GB-1277034-A (GB)
Title: Stop device in machine tool
IPC: B23Q16/00
Filed: 1969-07-01
Abstract: 1277034 Machine-tool details SHINKIKAIGIKEN CO Ltd 1 July 1969 [17 July 1968] 33219/69 Heading B3B In a machine tool wherein a table is movable across a bed, a device for accurately positioning the table relative to the bed comprises a member on the table and a member on the bed, the members having contact surfaces and the member on the bed being movable to and from a position wherein it can engage the member on the table, one of the members being free to pivot about an horizontal axis and the member on the bed being rotatable about a vertical axis, so that when the member on the bed is in the said position and the contact surfaces of the members engage, relative movement can occur between the surfaces to bring them into complete alignment with each other. In one embodiment (Fig. 1), an annular member 10, on the neck 9 of a shaft 8, is mounted for limited pivotal movement about axle 11. Shaft 8, which is vertically movable by an actuator 15, is mounted in a sleeve 7 for limited rotary movement about its axis. A stop member 3 on the table 1, which may be linearly or rotatably movable relative to bed 6, has a contact surface 4, which, in the upper position (as shown), of shaft 8 will engage a contact surface 12 of the annular member 10. In the event of any initial misalignment between the contact surfaces, shaft 8 and member 10 move appropriately to bring the surfaces 4, 12 into complete alignment, thereby reducing wear of these surfaces and ensuring accurate stopping of the table relative to the bed. In a second embodiment (Fig. 5), an annular member 10<SP>1</SP>, having a contact surface 4<SP>1</SP>, is mounted on the table for pivotal movement about axle 11<SP>1</SP>, the contact surface 12<SP>1</SP> being formed on the neck 9<SP>1</SP> of shaft 8 which has limited rotatability about its axis. In both embodiments the position of member 3, and hence contact surface 4 or 4<SP>1</SP>, is adjustable relative to holder 2 by a screw 5.
Patent GB-818837-A (GB)
Title: Improvements in or relating to document covers
IPC: B42F7/02
Filed: 1957-10-24
Abstract: 818,837. Document covers. LENNARTZ. W. Oct. 24, 1957 [Oct. 25, 1958], No. 33222/57. Class 146(1) A document cover 1, 1<SP>I</SP> or folder of synthetic material closed on one, two or three edges with a joint 2 or joints made by means of a fold forming a flap 4 and adhesive material, is characterized in that the corner or corners of an edge 3 to be secured to flap 4 at a joint is or are so shaped as by rounding or otherwise that the adhesive is spaced inwardly from the open edge or edges of the cover 1, 1<SP>1</SP> and the synthetic material remains free of adhesive at the fold adjacent the open edge or edges. So that the fold itself may also remain free of adhesive along the whole of its length, the adhesive material is applied to the sheet 1<SP>1</SP> and not to the flap 4.
Patent GB-648231-A (GB)
Title: Improvements relating to high-frequency induction heating apparatus
IPC: H05B6/36
Filed: 1948-12-24
Abstract: 648,231. Induction heating. MORRIS MOTORS, Ltd., BROWN, R. J., and BRIDLE, J. H. Dec. 24, 1948, No. 33284. ,[Class 39(iii)] A single turn inductor, for heat treating crankshaft journals, comprises half-inductors 1, 2 energized by separate high frequency transformers 3, 4 through semicylindrical current feed plate assemblies 1B and 2B respectively. The feed plate assembly 1B has two similar portions with integral transformer connecting tongues 5, 5, and the assembly 2B comprises a semicylindrical plate with connecting tongues 7, 8. Both assemblies are supported on panels 10 and 11, the former being fixed and the latter slidably supported on rails 12. Alternatively the panels may face each other, in which case the assemblies are similar. Specifications 633,045 and 635,360 are referred to.
Patent GB-800027-A (GB)
Title: Device for treating a photographic print with liquid
IPC: G03D13/04
Filed: 1956-10-31
Abstract: 800,027. Photographic processing devices. INTERNATIONAL POLAROID CORPORATION. Oct. 31, 1956 [Dec. 27, 1955], No. 33286/56. Class 98(2) A portable device suitable for use in the process of Specification 800,028, in which a silver transfer-reversal print is given a second or so of washing in aqueous lower alcohol to remove processing reagents which might discolour the print but to prevent dissolution of a newly formed film carrying the image, comprises rectangular container 10 for the washing liquid provided with elastic closure element 20 having longitudinal slit 30 normally closed but openable by pressure on the end walls 14 for introduction of a print 29. To ensure retention of slit 30 in the closed position, for instance when the device is carried in the user's pocket, retaining element 32 pivoted at 42 is arranged to clamp over closure element 20. Figs. 1-3 (not shown) are concerned with the manner of fitting of the closure element 20 on to the container 10, flanges to squeegee the print during its withdrawal and guide channels to hold the print centrally in the container. Of seven other Figs. (also not shown), Figs. 5, 6 are directed to a device very similar to that of Figs. 1-4; Fig. 7 to a device in which the entrance slit for the print may normally assume the open position but be held closed by a retaining element; Fig. 8 to a device with a rectangular upper section for the print and an enlarged lower section for washing liquid, usable by inversion of the device so that the liquid may fill the upper section, or by shaking the device; and Figs. 9-11 to mechanisms operable as on the end walls 14 of Fig. 4 to open the slit 30 for insertion of a print, slightly open it for squeegeeing during withdrawal of a print, and then return it to its closed position.
Patent GB-991842-A (GB)
Title: Improvements in brake-testing apparatus comprising rollers
IPC: G01L5/28
Filed: 1963-08-23
Abstract: 991,842. Rollers. GEBR. HOFMANN KOMM.-GES. Aug. 23, 1963 [Aug. 25, 1962], No. 33425/63. Heading F2U. A friction roller for use in brake testing apparatus comprises a metal core surrounded by a layer of cement.
Patent GB-506752-A (GB)
Title: Brakes, particularly for motor-vehicles
IPC: F16D65/22
Filed: 1937-12-03
Abstract: 506,752. Internal shoe brakes. ROVER CO., Ltd., and IVERSEN, P. A. SCOTT-. Dec. 3, 1937, Nos. 33442/37 and 9334/38. [Class 103 (i)] In an internal shoe brake, two shoes a are moved outwards against the action of springs f, g to engage the internal periphery of a drum b by a two-armed lever j provided with recesses k which bear against thrust pieces i on flanges h of the shoes a arranged in two different planes. The lever is operated by a link p and is supported by an abutment piece o on a plate d carrying stops c against which the shoes a are held by the springs f, gÀ The springs f may be stronger than the springs g to hold the shoes with one end against a stop c during application of the brake. In a modification, the flange h of the upper shoe is extended downwards so that a smaller lever can be employed and thrust pieces are adjustably secured by bolts and slots to the extensions. A modified arrangement of springs is employed.
Patent GB-204600-A (GB)
Title: Improvements in or connected with pipe-ball-joints
IPC: F16L27/053
Filed: 1922-12-07
Abstract: 204,600. Gwynnes Engineering Co., Ltd., and Roberts, S. Dec. 7, 1922. Ball - and - socket joints. - To eliminate the wearing of the working faces of a pipe ball-joint used for conveying grain or other more or less solid material, the joint is fitted with a liner, seated in the socket and extending into the ball a distance equal to or greater than half the diameter thereof, the free end of the liner being provided with a part spherical surface adapted to fit the interior of the ball. A thin tubular shank a is adapted to seat itself in an annular recess b in the ball-socket c and extends into the interior of the ball e. The shank is tapered at f to allow the required degree of rotation of the ball, is internally flared at its free end and has a part spherical surface g adapted to fit the interior of the ball. The ball is retained in position by the usual flanged ring h and packing i. The liner may be in one piece and of white iron, india-rubber &c., or may be part metal surmounted by an india-rubber ring g<2>, furnished for example with a dove-tail projection g' fitting into a recess f<2>.
Patent GB-1158683-A (GB)
Title: Seat Cushion, in Particular for Vehicles
IPC: A47C31/11
Filed: 1967-07-20
Abstract: 1,158,683. Cushions. ETABS. BERTRAND FAURE. 20 July, 1967 [27 July, 1966], No. 33497/67. Heading A4M. A car seat cushion of moulded plastics is provided on its upper surface with a cover 6 or 11 peripherally anchored in a slot 2 or 10 in the upper surface of the cushion at or adjacent its periphery without the use of separate retaining members. In a first embodiment, Fig. 2, a thickened edge portion 7 of the cover 6 engages in a groove (3) at the bottom of the slot 2. In a second embodiment, Fig. 6, the cover 11 comprises two textile sheets 16, 17 enclosing a resilient mass 18 and welded together at their peripheries and along longitudinal lines 19. A T-section element 12 has one arm 15 secured to the periphery of the cover 11 and another arm 13 with a thickened end engaged in a slot 10 in the cushion 9.
Patent GB-1068616-A (GB)
Title: Process for liquid-liquid extraction of beryllium
IPC: C22B35/00
Filed: 1964-08-17
Abstract: A process for the liquid-liquid extraction of beryllium in the form of a complex from an aqueous sulphuric acid solution of pH 0 to 5.5 containing anionic complexes of beryllium and sulphuric acid comprises intimately contacting the solution with a water-immiscible organic phase comprising as a liquid anion exchanger an organic compound having the formula <FORM:1068616/C1/1> in which R and R1 are each selected from hydrogen, alkyl radicals, aryl or arylalkyl radicals in an organic diluent and thereafter separating the organic phase containing the beryllium complex.  The R and R1 constituents of the anion exchanger are such that, it its free basic form and in the form of salts, it is water-insoluble, e.g. 3,9-diethyl-6-amino-tridecane, its bisulphate and 12-amino tricosane. The organic diluent can be aromatic or paraffinic, e.g. kerosene or benzene.  If ferric salts are present in the sulphuric acid solution, these must be reduced to the ferrous state before extraction.  The beryllium may be recovered from the organic phase by direct precipitation by alkali or extraction into the aqueous phase by solutions of chlorides, sulphates and/or nitrates.  A comparative example shows that no extraction of beryllium occurs with hexamethyl - 1,1,3,3,55 - hexylamine ("Primere," Trade Mark), 1,4-epoxy-6,8-cyclotrimethylene-7-amino-10-ethyl-tetradecane and secondary or tertiary amines.
Patent GB-1441173-A (GB)
Title: Combined brake pressure modulator and brake actuation arrangement
IPC: B60T17/22
Filed: 1973-07-13
Abstract: 1441173 Aritiskid braking systems; brake boosters ALFRED TEVES GmbH 13 July 1973 [15 July 1972 9 Oct 1972] 33531/73 Heading F2F A combined brake pressure modulator and actuation arrangement for an antiskid braking system comprises a floating piston 31, 31<SP>1</SP> to which an auxiliary pressure can be applied and which forms on the one hand an actuation piston for a wheel brake circuit and on the other hand a restoring piston, and a three-way two-piston valve 49, 49<SP>1</SP>, which is actuated in dependence on a control valve representing for example the state of motion of a wheel and whose second outlet is connected to a reserve tank 18, is connected between the auxiliary pressure source and a chamber 25 which is limited in one direction by the applied surface of the floating piston. When the driver presses the pedal a pedal travel simulator 3 having a spring 8 comes into action and a valve 11 is lifted so that pressure from an accumulator can be applied to a valve having a slide 6 and the valve opens by a groove 21 coinciding with a groove 20 in the slide, the pistons 31, 31<SP>1</SP> being moved against springs 32, 32<SP>1</SP> to provide braking pressure via chambers 38, 38<SP>1</SP>. If an incipient skid signal is received from the controller a valve 49, 49<SP>1</SP> is operated to connect an annular chamber 34, 34<SP>1</SP> with the reservoir 18 and separate it from the accumulator so that the wheel brake pressure can press back piston 31, 31<SP>1</SP> and release braking. If the accumulator pressure fails an annular chamber 40 is without pressure and an emergency spring 53 moves the parts to permit operation of the pistons 31, 31<SP>1</SP> mechanically with the same pedal travel. Modified constructions are described (Figs. 5 and 6, not shown).
Patent GB-1314709-A (GB)
Title: Protection circuit
IPC: H02H3/08
Filed: 1970-07-10
Abstract: 1314709 Protective arrangemsnts RCA CORPORATION 10 July 1970 [15 July 1969] 33538/70 Headings H2H and H2K An overload protective arrangement for a first load 12 comprises the series circuit of a thyristor 15 and a second load 12<SP>1</SP> connected in parallel with the first load, and a three-terminal thermally-responsive device 25 in series with the first load, the device 25 applying a triggering signal to the thyristor 15 under overload conditions so that the thyristor 15 conducts to relieve the overload conditions. As shown the loads 12, 12<SP>1</SP> are motors and the thyristor 15 is a triac which is rendered conductive when a bimetallic element connected between two terminals of the device 15 deflects to close contacts. A signal lamp 34 may be provided.
Patent GB-1298402-A (GB)
Title: Block bottom bag or sack
IPC: B31B160/20
Filed: 1970-07-10
Abstract: 1298402 Making block bottom bags GARTEMAN & HOLLMANN GmbH 10 July 1970 [29 July 1969] 33665/70 Heading B5D [Also in Division B8] A block bottomed bag is made by opening the bottom of the bag as shown, pressing the bottom in this position, grooving the bottom to form two fold lines 4, folding over the side flaps 5 so formed and pressing them in this position, unfolding the side flaps 5, applying adhesive to the shaded areas 13 and refolding the flaps 5. The initial folding over of the flaps 5 is achieved by means of folding fingers (6) co-operating with a format sheet (7) whose width is equal to the spacing of the fold lines 4. The flaps 5 are unfolded by means of spreading fingers (9) and are refolded, after application of adhesive, by folding fingers (14) co-operating with a narrow format sheet (15) whose width is less than the spacing of the fold lines 4. The format sheet (15) may be convex, the bag being supported on a convex support (16) during the refolding operation.
Patent GB-1047637-A (GB)
Title: Improved hot rolled steel rod
IPC: B21C9/00
Filed: 1963-08-26
Abstract: A medium to high carbon steel rod has a microstructure comprising fine pearlite grains with minute traces of grain boundary ferrite and is substantially free of bainite.  The hot rolled rod is subjected to controlled cooling by the process in the apparatus of Specification 1,024,713 to form the required microstructure.