baber/WOPTO huggingface dataset:
Patent GB-928982-A (GB)
Title: Improvements in or relating to apparatus and mold for casting molten metal
IPC: B22C9/04
Filed: 1961-10-13
Abstract: 928,982. Moulds. PRECISION METALSMITHS Inc. Oct. 13, 1961 [March 30, 1961], No. 36898/61. Class 83 (1). A mould made by the lost wax process has a gating system including a sprue 10 defined by closely spaced opposed wall surfaces and a pairing cup 15, and a number of workpiece mould cavity pods 20 carried by the sprue, the minimum volume ratio of the gating system to mould cavities being about  to 1, the gating system having a minimum cross-section dimension of about # inch, and the inner wall surface defining a passageway through the sprue, the passageway having a cross-section area of at least <SP>1</SP>/ 3  the cross-section area of the sprue. The heat-disposable sprue pattern is in tubular form and the mould patterns may be mounted on both the inner and outer surfaces as shown in Fig. 2. The openings 13 vent the interior of the tubular sprue pattern during dipping.
Patent GB-868971-A (GB)
Title: Improvements in or relating to the dispensing of cylindrical articles from hoppers
IPC: B65G65/48
Filed: 1956-12-04
Abstract: 868,971. Stencilling apparatus. REJAFIX Ltd., EDELS, S., and EXCELL, A. W. Nov. 29, 1957 [Dec. 4, 1956], No. 37093/56. Class 100(2) [Also in Group XXX] A silk-screen printing-machine comprises a plurality of squeegees arranged to operate simultaneously over separate locations on the screen, a hopper (see Group XXX) for depositing articles such as cylindrical ampoules on to a conveyer, and means for bringing the articles from the conveyer into positions against the screen, one article for each squeegee, for simultaneous printing thereon. The screen 12 carries a stencil for each squeegee 13, the stencils differing in design or being of the same design and applying different coloured ink. Ampoules are contained in a hopper 16 (see Group XXX). The machine is driven by a motor 10 through a camshaft 20. A conveyer 14 comprises two spaced chains each supporting notched carriers 25, each aligned pair of carriers being arranged to support an ampoule by its ends. The hopper delivers simultaneously an ampoule each to carriers spaced three apart. The conveyer is cam-driven intermittently in steps equal to two carriers, so that each carrier holds an ampoule. The ampoules are raised in pairs three apart by a cam-actuated work-carrier 41 comprising a lifter member 44 and two arms 42.each carrying two ampoule-supporting rollers 45. The screen 12 is reciprocated under cam control to roll the ampoules and print them under the action of squeegees 13 stationary in a horizontal sense. The squeegees are supported on horizontal rods 61 slidable in a horizontally adjustable plate 60 and carrying weights 63. A cam acts on the squeegees to raise them at the end of the printing stroke, lower them on the opposite side of the ink ridges, and hold them partially supported on the return stroke, so that they control the spreading of the ink but do not force it through the screen. The chains are laterally adjustable for length of ampoule, and the screen stroke is adjustable according to diameter of ampoule. The ampoules are dried by a heater 71 in a housing 72 and a reflector 73. Rollers 23 keep the conveyer taut. According to the Provisional Specification, the conveyer comprises two stationary notched racks and two similarly notched racks moving in an orbital path below and above the stationary racks, so as repeatedly to raise the ampoules off the stationary racks and deposit them thereon two notches forwards.
Patent GB-336858-A (GB)
Title: Improvements in cutting tools such as those for refacing valve seats
IPC: B23C5/22
Filed: 1929-12-05
Abstract: 336,858. Dehn, F. B., (Fleming Machine Co.). Dec. 5, 1929. Cutters for shaping surfaces such as valve seats comprise a conical body 10 carrying a cap with flange 12 all of sheet metal, slots with inturned flanges being formed in the conical body to receive cutting members 18 of T-shape, the flanges 16 being turned in to engage undercut recesses 19 therein thus holding the cutting edges firmly in position. A ferrule for mounting on a spindle &c. 14 is inserted through the centre of the tool and flanged over to grip the sheet metal members.
Patent GB-368788-A (GB)
Title: Improvements in thermionic valve amplifying and/or detecting systems
IPC: H03F1/50
Filed: 1930-12-11
Abstract: 368,788. Valve amplifying and detecting circuits. MIDGLEY, A. H., Fairfield, Harefield Road, Uxbridge, Middlesex. Dec. 11, 1930, No. 37367. [Class 40 (v).] In order to increase the stage gain of a direct-coupled thermionic amplifier or detector the resistance or impedance connecting the anode of one stage to the grid of the next is shunted by a condenser to byepass all high or audio frequencies. The Figure shows a three-stage low-frequency amplifier in which the anodes of valves T1, T2, T3 are connected to the positive high-tension source H3 through resistances or chokes R1, R2' R3 and also (as regards T1, T2) to the negative terminal H1 through resistances or tapped chokes r1, r2 from which an adjustable connection is made to the grid of the succeeding stage. The portion of the coupling element included in the direct anode-grid connection is shunted by a condenser C1, C2 so as to increase the stage gain. The input terminals A1' A2 are shunted by a resistance K, A2 being connected to the potentiometer P across the high-tension source, through a variable tapping. The common cathode circuits are also tapped on to this potentiometer through a resistance X. Suitable component values are given in the Specification. Specifications 344,096 and 344,936 are referred to.
Patent GB-445594-A (GB)
Title: Improved cover for use with display stands and the like
IPC: A47F7/24
Filed: 1934-12-31
Abstract: 445,594. Dust coverings for display stands. WHITBYS, Ltd., 28, Eagle Street, High Holborn, London, and SHIPWAY, S. P., 31, Beechwood Avenue, Ruislip, Middlesex. Dec. 31, 1934, Nos. 37399/34 and 15104/35. [Class 52 (i)] A sheet 3 of transparent material is fitted intermediate its ends with a supporting bar capable of attachment to a display stand 1 so that the sheet can hang down on each side to cover the articles displayed.
Patent GB-922137-A (GB)
Title: Improvements in or relating to braking circuits for d.c. motors
Inventor: KING KENNETH GORDON
IPC: H02P3/12
Filed: 1960-11-02
Abstract: 922,137. Control of D.C. motors. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Oct. 24, 1961 [Nov. 2, 1960], No. 37632/60. Class 38 (3). In a control system for a motor M having constant field excitation, the armature is supplied from an alternating current source through a bridge rectifier comprising two ordinary rectifiers Rf1 Rf2 and two silicon controlled-rectifiers T1, T2. A dynamic braking resistor R is connected across the armature by a series inverter comprising a silicon controlled-rectifier T, rendered conductive by a pulsing transformer Tf, a condenser C and inductance L2. The repetitive pulsing of the rectifier T is derived from a pulse generator PG through a gate S rendered conductive when the supply current, sensed by a transformer Tf 1, falls to a small or zero valve. The pulse generator may comprise a relaxation oscillator incorporating a silicon controlled-rectifier and the gate a biased transistor.
Patent GB-861760-A (GB)
Title: Improvements in and relating to the production of boron compounds
Inventor: TAYLER FREDERICK MAURICE
IPC: C01B6/10
Filed: 1958-11-25
Abstract: Amine boranes are produced by bringing a complex compound of a secondary or tertiary amine and a boron halide into contact with hydrogen at elevated pressure and temperature in the presence of a substance which combines with the hydrogen halide formed in the reaction.  The boron halide may be the trifluoride, trichloride or tribromide.  The secondary or tertiary amine may be an alkylamine, an aralkylamine, an arylamine or a hydrogenated heterocyclic amine.  The substance which combines with hydrogen halide is used in at least the stoichiometric quantity and may be the amine which is complexed with the boron halide, or other basic materials or metals which are electropositive such as aluminium. Suitable pressures are in the range 100-10,000 atmospheres and suitable temperatures are in the range 180 DEG  C. to 250 DEG  C.  A solvent, such as a hydrocarbon or an excess of the amine, may be present and substantially anhydrous conditions should be employed. The amine borane produced may be reacted with a boron halide to give diborane and an amine complex of the boron halide which may be recycled to the first stage of the process.ALSO:Diborane is made by reacting a boron halide, e.g. boron trichloride or boron trifluoride, with an amine borane produced by bringing a complex compound of a secondary or tertiary amine and a boron halide into contact with hydrogen at elevated pressure and temperature in the presence of a substance which combines with the hydrogen halide, the amine-boron halide complex formed as a by-product in the diborane formation step being recycled for the production of the amine-borane.
Patent GB-371011-A (GB)
Title: Improved device for sharpening or stropping razor blades and the like
IPC: B24D15/08
Filed: 1930-12-17
Abstract: 371,011. Sharpening razors. MORRICE, J. A., 1, Princes Terrace, Dowanhill, Glasgow. Dec. 17, 1930, No. 38091. [Class 60.] A device for sharpening razor blades &c. consists of a box 1 having a lid 3 hinged thereto at 2 and adapted to be held closed by a catch 3c. In the box is mounted a sharpening roller 4, and in the lid is mounted a sharpening roller 5 ; the rollers may be resiliently mounted, and are driven from a handle, through a oneway clutch 16, by gearing 10 .. 14 in a casing 23. The handle is hinged at 20 to the clutch and may be folded with the crank 21 inside the box when not in use. The razor blade 6 carried by the razor frame 7 lies between the rollers during sharpening, the frame being supported and held in the box by seatings 8 and portions 9. The rollers may be of hard material, for example " Bakelite," and have therein helical grooves 24 in which may be provided strips of leather, rubber, &c., or the rollers may be made of leather, rubber, &c. with metal, glass, &c. in the grooves ; the grooves may be in part righthanded and in part left-handed helices, or may be of both hands intersecting along the roller. A modified form of groove for the rollers is shown in Fig. 6, and the projections 27 may be undercut, the grooves 24 being provided with strips of leather &c. 25 extending partially or wholly across the grooves. The rollers may be driven by friction gearing.
Patent GB-1373199-A (GB)
Title: Display case
IPC: A47F7/03
Filed: 1973-08-13
Abstract: 1373199 Display cartons COMPAGNIE INDUSTRIELLE DES PILES ELECTRIQUES 13 Aug 1973 [21 Aug 1972] 38286/73 Heading B8P [Also in Division G5] A container 1 of expanded polystyrene has a cardboard cover 20 that slides over the container and is in the form of an open-ended sleeve, the cover being foldable to engage grooves 15, 16 in a wall 13 so as to display information. The container base has recesses 12 to engage articles 3 stored in the container. The cover can carry inscriptions in several languages and be folded to display the appropriate one. With an inscription on each face of the cover, the cover is so folded and positioned that only the chosen inscription is visible.
Patent GB-1490510-A (GB)
Title: Organosiloxanes
IPC: C08G77/20
Filed: 1976-09-16
Abstract: 1490510 Chain extending organosiloxanes DOW CORNING CORP 16 Sept 1976 [29 Dec 1975] 38352/76 Heading C37 Organosiloxanes containing at least one SiOH group are chain extended by reaction with methylvinyl - di - (epsiloncaprolactamo)silane. Reaction is stated to proceed rapidly on contact at room temperature. Solvents may be, but are preferably not, used. In the example 10 g. of hydroxyl-terminated polydimethylsiloxane is reactive with 0À35 or 0À37 g. of the chain extender. The products contain methylvinylsiloxane groups and can be subjected to various further reactions through the vinyl group.
Patent GB-317702-A (GB)
Title: Improvements in and relating to stuffing-box packings
IPC: F16J15/28
Filed: 1928-12-29
Abstract: 317,702. Huhn, G. Dec. 29, 1928. Roxes; bushes; glands; packing, metallic.-In a stuffing-box, which is especially applicable, for the piston-rods of locomotives, the packing is contained in a, short casing c, having a single chamber, and partly or wholly inserted in the bore of the stuffing-box. A flange on the casing is secured between the end of the stuffing-box and a cover d. The remainder of the stuffing- box is filled by a guide of cast-iron or bronze &c., which fits the bore of the box. The guide is formed in halves, the lower half being in contact with the rod, while clearance is provided at m between the upper half and the rod. The packing comprises a, segmental ring g, having over-lapping joints and compressed by a spring h. A ring i formed in halves or in four parts, and compressed by a spring k is inserted between the) ring g and the cover d. Two of the joints of the ring i are in the horizontal plane and this position is maintained by the preponderating weight of the lower half of the ring, the bore being eccentric. The surface of the ring i is smoothed and the inner face of the cover d may be smoothed, or a smoothed cast iron plate may be inserted between the cover and the ring i. The guide may be grooved to form a labyrinth packing.
Patent GB-952969-A (GB)
Title: Improvements in or relating to smokers' pipes
IPC: A24F1/22
Filed: 1960-07-27
Abstract: 952,969. Tobacco pipes. J. MAHIEUX. July 27, 1960 [July 28, 1959], No. 38612/62. Divided out of 928,729. Heading A2M. A smoker's pipe comprises a bowl 1, a mouthpiece 3 fixed to the bowl by two rods 2, and a removable tubular element 4 connecting the bowl to the mouthpiece. The rods are fixed to the mouthpiece 3 by means of serrations 16 which are forced into holes 17 and 18 in the mouthpiece 3. The element 4 is held between connectors 19 and 21 secured to the bowl and the mouthpiece respectively and may be removed by exerting an axial pressure against the action of a spring. Alternatively the element may be held in position by friction between its ends and the connectors. The element 4 may contain a filter, or may be provided with cooling fins.
Patent GB-1243997-A (GB)
Title: Bromoacetylureas having a biocidal action
IPC: C07D233/38
Filed: 1968-08-13
Abstract: 1,243,997. Fungicidal seed dressings. SCHERING A.G. 13 Aug., 1968 ([19 Aug., 1967], No. 38618/68. Heading A2Q. Also in [Divisions A5 and C2] Seeds are protected against fungal attack by treatment with compounds of the general formula or compositions containing such compounds, in which R 1  represents a hydrogen atom or an alkyl group, and R 2  represents a hydrogen atom, an aralkyl or cycloalkyl group, or a saturated or unsaturated, aliphatic hydrocarbon that may be substituted by one or more substituents selected from halogen atoms and alkoxy, nitrile, alkylmercapto, carbalkoxy and heterocyclic groups, or R 1  and R 2  together with the >N-CO-N< group represent a heterocyclic group having at least 5 mig members, and R 3  represents a hydrogen atom or a bromoacetyl or trihalogeno-methylmercapto group. The compositions may be formulated as powders, ducting agents, granulates, solutions, emulsions or suspensions containing liquid or solid carriers or diluents, and if desired, wetting agents, adhesives, emulsifiers, dispensing aids, other disinfectants and dyestuffs, e.g. New Fuchsine, to distinguish treated seeds by a visible colouration. In the sample 6, peas are disinfected by treatment with a 50 per cent by wt. solution of an active compound.
Patent GB-783772-A (GB)
Title: Improvements in or relating to torque limiting clutches with thermal release
IPC: F16D9/02
Filed: 1955-03-22
Abstract: 783,772. Friction clutches. AIR EQUIPMENT. March 22, 1955 [Nov. 3, 1954], No. 38640/56. Divided out of 783,771. Class 80 (2). In the multi-disc friction clutch disengaged by the heat generated on prolonged slipping described in Specification 783,771, an internally splined drum 9a receives driven friction discs interleaved with friction discs rotated by the driving-shaft (not shown) and is welded at its plane end face to a hub member 9b having internal splines 9<SP>11</SP>, this arrangement enabling the splines to be machined in the drum and hub while the parts are separated, and when this process is relatively simple, before the welding takes place. Tapped holes 16 in the weld area receive screws (not shown) engaging a plate (also not shown) screwed on to external threads 9c on the hub member, these screws preventing relative rotation between the drum 9a and hub 9b in the event of the weld breaking. Specification 648,984 also is referred to.
Patent GB-1160835-A (GB)
Title: An Insoluble Electrode for Electrolytic Baths
Inventor: HAUSMANN EDGAR
IPC: C25B11/02
Filed: 1967-08-23
Abstract: 1,160,835. Direct connections. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 23 Aug., 1967 [24 Aug., 1966], No. 38734/67. Heading H2E. [Also in Division C7] Current lead connections are made, e.g. by a Cu or Al rod or plate 14, via one or more recesses in an electrode body 11 of Ti, Ta or their base alloys coated with a platinum group metal by filling the recesses with a metal or alloy 13 having a melting-point below 100‹ C. such as Na, K, Ga, Hg or low melting-point alloys of these or Wood's metal. The current lead may make a gas-tight screw seal 15 with the electrode body, a space 16 above the metal 13, permitting differential expansion and vaporizing of the low-melting metal. Alternatively if a liquid, the low-melting metal may be covered with a highboiling liquid communicating with the air (Fig. 3, not shown).
Patent GB-1085185-A (GB)
Title: Improvements in or relating to seals
Inventor: WOODMAN THOMAS ALEXANDER
IPC: G09F3/03
Filed: 1965-09-10
Abstract: 1,085,185. Seals. ACME SEALS Ltd. Aug. 26, 1966 [Sept. 10, 1965], No. 38856/65. Heading B6P. The ends of a flexible strip are locked together by entering a slotted end of the strip into the U-shaped other end thereof to cause a downwardly directed resilient tooth 10 to enter the slot (14) in the slotted end. The slotted end is then pulled in the opposite direction to cause a tongue 15 on an edge of the slot 14 to be bent upwardly by the tooth 10. On release the slotted end moves a short distance to allow a V-shaped projection 13 on the U-shaped end to enter an aperture 16 in the tongue 15. The tooth 10 is formed on the end of the upright of a T-shaped spring member 9 the cross bar of which is engaged at its ends between corrugated flanges of a box (2) enclosing the U-shaped end of the strip. The tooth 10 also passes through holes (11, 12) in the U-shaped end.
Patent GB-1206585-A (GB)
Title: Filter and method of filtering
IPC: B01D33/00
Filed: 1967-09-30
Abstract: 1,206,585. String-discharge filters. DORROLIVER CO. Ltd. and P. EVANS. 30 Sept., 1967, No. 38939/66. Heading B1D. A string-discharge filter includes a filter surface 21 having ridges and furrows in which are located the cake-discharging strings 3. As described, the surface of a drum 2 is provided with circumferential ribs 23 and a wire gauze screen 22 forming ridges and furrows. A filter cloth 21 is secured thereto by wires 28. Running in the furrows are cake-removing strings 3, or ribbons (not shown). This filter surface is passed through the suspension to be filtered as drum 2 rotates, and a vacuum is applied through pipes 15 to the drum's interior, whereby filter cake 29 is formed in the furrows. The strings 3 remove the cake 30 and may be aided by the application of pressure to the drum's interior. Subsequently strings 3 pass through a cake-detaching comb 7, a guideroller 5, a cake-removing knife 8, a realigning comb 10, and a return roller 6, being subjected to washing from a spray 9. Fig. 6 (not shown) illustrates an alternative filter surface, where the ribs 23 are each replaced by a row of wedge-shaped teeth (32) secured by webs (35).
Patent GB-1002684-A (GB)
Title: Electrostatic treatment of silicone release coatings
IPC: D21H25/06
Filed: 1963-10-03
Abstract: Supported films of cured polydimethylsiloxane are subjected to the action of a corona or electrostatic discharge for sufficient time to increase its release value.  The film may be formed as a coating on paper.  Specification 875,605 is referred to.
Patent GB-866477-A (GB)
Title: Improvements in or relating to indexing means for dressing tools
Inventor: TEATHER HARRY GEORGE
IPC: B24B53/12
Filed: 1956-12-21
Abstract: 866,477. Trueing grinding wheels. HABIT DIAMOND TOOLING Ltd. Dec. 23, 1957 [Dec. 21, 1956], No. 39082/56. Class 60. A dressing tool comprises an indexing mark 11 or position on a tool holder 6 which cooperates with an odd number of flats 5 formed on a tool shank 1 or member 4 secured thereto and periodically numbered in succession around the shank. The tool 3, which may be a diamond, is carried at the end of a conical portion 2 on the tool shank around which the flats 5 are formed either on the shank or on the member 4 secured to the shank by shrinking or by screws. The flats are alternately numbered in succession around the shank which is adjustably mounted in the holder 6 or in an aperture cast in the grinding machine and can be clamped in position by a screw 8. In use, the tool is clamped with the flat numbered 1 coincident with the index mark 11 on the holder. When the tool has worn, the shank is rotated by hand or by means of a suitably shaped spanner until the next consecutivelynumbered flat is coincident with the index mark and re-clamped in position. Instead of the flats being numbered alternately in succession, the flats may be numbered successively with intervals of more than two flats.
Patent GB-1115174-A (GB)
Title: Method of tempering spherical glass particles
IPC: C03B27/02
Filed: 1965-09-14
Abstract: A process for the production of spherical glass particles having an improved crush strength comprises quenching heated pre-formed spherical glass particles by immersing them in an aqueous solution of an ethylene oxide polymer. The spherical glass particles may be made by moving a bed of glass particles mixed with finely divided carbon (e.g. acetylene black) through a heating zone, or by the known methods of aspirating or blowing a spray from a molten pool of glass. The spheres are formed at a temperature of about 900 DEG  C. and preferably enter the quenching liquid at a temperature not less than 650 DEG  C.  They may, therefore, be allowed to fall through air for such a distance that they are cooled to not less than 650 DEG  C. A number of different compositions of the quench bath are given.  The glass used may be a soda-lime-silica, lead or borosilicate glass.
Patent GB-1299740-A (GB)
Title: Improvements in or relating to a rocking chair
Inventor: TRANTER ARTHUR
IPC: A47C3/02
Filed: 1969-08-05
Abstract: 1299740 Rocking chair VONO Ltd 9 Sept 1970 [5 Aug 1969] 39112/69 Headings A4J and A4U A chair comprises a base 11, Fig.1 (not shown) and a seat mounted for rocking movement relative to the base by a pair of inverted L-shaped brackets 30 secured to the underside of the seat and an inverted T-shaped bar 27 the centre of which is secured to a spindle 16 rotatably mounted about a vertical axis in the base, there being disposed between the flanges 31 of the bracket and the trunk 28 of the bar resilient pads 29 e.g. of rubber or synthetic plastics material. The brackets are secured through a fixing plate (34) Fig.3 (not shown) to the underside of the seat by bolts or rivets, the bolts securing one of the brackets to the seat passing through a slot (35) in the plate (34) which allows for the compression of the pads to be adjusted.