baber/WOPTO huggingface dataset:
Patent GB-931413-A (GB)
Title: Piston ring structure and piston
IPC: F16J9/06
Filed: 1959-12-30
Abstract: 931,413. Piston rings. PERFECT CIRCLE CORPORATION. Dec. 30, 1959 [Feb. 27, 1959], No. 44210/59. Class 122 (1). A piston ring structure comprises compression and oil ring portions 21, 24, Fig. 2, which have axially-spaced cylinder wall-engaging faces and are disposed in the same piston groove 12 with the compression ring portion 21 projecting radially inward beyond the oil ring portion 24, and radial slots 26 provided adjacent the oil ring portion for conducting oil scraped from the cylinder wall by the latter portion to the inner part of the groove 12. The bottom of the groove 12 has an upstanding wall 16 providing a ledge 15 over which the compression ring portion 21 is arranged to lie, and drain holes 27 are provided below this wall for draining away the oil which has passed through the slots 26. The ring is biased into contact with the cylinder by a spring 25 which is housed in the lower channel 14 in the groove 12 and acts against a bevelled edge 30 of the ring so as to exert on axial force tending to urge the compression ring portion 21 into sealing contact with the upper face of the groove or the wall 16. The face of the compression ring portion may be either plain or tapered as shown at 23. In the modification shown in Fig. 4, the ring is used without the spring 25 and is urged into contact with the cylinder by its own spring force. The ring shown in Fig. 6 has the compression ring and oil ring portions 50, 51 formed of separate and superposed elements, the oil slots being provided in the portion 51.
Patent GB-925510-A (GB)
Title: Furnace charging apparatus
IPC: C21B7/18
Filed: 1961-12-12
Abstract: 925,510. Charging shaft-furnaces. BROWN FINTUBE CO. Dec. 12, 1961 [Jan. 14, 1961], No. 44408/61. Class 51 (2). [Also in Groups XVIII and XXX] Apparatus for charging a cupola furnace 5 comprises a loading station 8 connected thereto by rails 11 traversed by a skip car 21 incorporating a vibratory shoot 23 engaging the charging opening 6. The shoot 23 is mounted on springs 47 engaging transverse girders 37, 38 of a frame member 22 comprising a rectangular arrangement of girders incorporating upper side plates 41 with slots 42 and lower side plates 43 with slots 44 respectively receiving front axles 24 and rear axles 25 of the skip car. The shoot is vibrated by an electric motor in a housing 52 supplied with current through contacts 92 engaging conductors 93 at the top of the rails 11. In the lowermost position, the shoot 23 and frame member 22 rest on the frame 73 of a known weighing machine 9 (see Group XVIII), having an indicating scale 70 near a loading platform 97, the car 21 disengaging from the slots 42, 44. The skip car is traversed by a cable 32 passing over a sheave 33 to an electrically-driven hoist 35 and stopped by upper and lower limit switches 94 engaged by a lug on the car. Vertically-extending rear lugs 81 and inclined front shoe members 83 on the scale frame 73 respectively engage horizontal lugs 82 and inclined surfaces 84 on the frame member 22 to locate the latter in its lowermost position.
Patent GB-1531737-A (GB)
Title: Magnetic oscillation magnetometer
IPC: G01R33/04
Filed: 1975-10-28
Abstract: 1531737 Magnetometer MISHIMA KOSAN CO Ltd 28 Oct 1975 [28 Oct 1974] 44485/75 Heading G1N A magnetometer comprises a transistor Q 1  connected with two inductance windings 2, 3 wound on a magnetic core 1 subjected to an external magnetic field H ex  to be measured whereby an oscillatory condition is established wherein the work-space ratio T ON /T OFF  of the circuit output voltage pulse waveform e oi  is determined by the field strength of the applied magnetic field. This waveform may be smoothed by capacitor Co and the resulting D.C. voltage level E oi  provides a measure of the field strength, Fig. 3. Alternative embodiments using two transistors and four inductance windings are described Figs. 5a-c and 8 (not shown) leading to a linear voltage vs field strength characteristic Fig. 7 (not shown). The construction of the core is illustrated schematically in Fig. 10 (not shown) and Fig. 11 (not shown) illustrates a phase-detector circuit for use to measure an alternating magnetic field.
Patent GB-1020838-A (GB)
Title: Tubular elements
IPC: D04B1/00
Filed: 1963-11-12
Abstract: A knitted or braided tube of a synthetic plastic material is rendered rigid or semi-rigid by being drawn on to a former and shrunk by the application of heat.  The tube may be coated internally with a resin. The ends of the tube may be reinforced by rolling each end of the tube back on itself to form a bead prior to the tube being shrunk.  A multiply tube may be formed by positioning a number of tubes one within another.  The tube may be cylindrical, square or polygonal in shape and may be used as a filter.ALSO:A tubular filter is made from a knitted or braided tube of a synthetic plastic material and is rendered rigid or semi-rigid by being drawn on to a former and shrunk by the application of heat. The tube may be coated internally with a resin.  The ends of the tube may be reinforced by rolling each end of the tube back on itself to form a bead prior to the tube being shrunk.  A multiply tube may be formed by positioning a number of tubes one within another.  The tube may be cylindrical, square or polygonal in shape.
Patent GB-891384-A (GB)
Title: Improvements in pipe couplings
Inventor: PITT ANGUS RAYFIELD
IPC: F16L19/075
Filed: 1960-12-29
Abstract: 891,384. Pipe joints. DOWTY ROTOL Ltd. Dec. 29, 1960, No. 44640/60. [Addition to 801,631]. Class 99(1). A coupling for joining a pair of pipe ends 12, 13 in fluid-tight manner comprises a pair of collars 3, 7 each of which is secured to a pipe short of its end, a sleeve 16 fitting the pipe end portions which project beyond the collars 3, 7, sealing rings 14, 15 interposed between each collar and the sleeve 16, and fastening means arranged to draw the collars together and maintain the sealing rings in compressive engagement with the collars and pipe ends. As shown, the fastening means comprises an external screw thread on collar 3 and a co-operating nut 9 which engages behind the collar 7.
Patent GB-1404539-A (GB)
Title: Treating nickel base alloys
IPC: C22F1/10
Filed: 1973-09-24
Abstract: 1404539 Heat-treating nickel alloys SPECIAL METALS CORP 24 Sept 1973 [25 Sept 1972] 44694/73 Heading C7A A cast nickel-base super alloy is homogenized at 2200 to 2400‹F to dissolve primary carbides and cooled at more than 25‹F/hour to at least 1750‹-2185‹F to preclude formation of coarse or film carbides. It is then hot worked with at least 20% reduction in cross-sectional area at 1750 to 2185‹F to precipitate fine spherical carbides. The alloy may contain C up to 0À2%, Mn up to 2À0%, Si up to 2À0%, Cr 5-25%, Co up to 23À0%, Mo up to 10À0%, Ti up to 10%, Al up to 5À0%, B up to 0À05%, Zr up to 0À5%, Fe up to 40%, one or more of Nb, Ta, Hf up to 8À0%, V up to 2À0%, W up to 10À0%, Re up to 0À5%, Group IIA metal up to 0À02%, Rare earth metal up to 0À5% and Ni at least 40À0% the balance apart from impurities.
Patent GB-1274535-A (GB)
Title: Improvements in or relating to multi-plunger presses
Inventor: KAISER OTFRIED
IPC: B21D22/00
Filed: 1969-09-10
Abstract: 1,274,535. Angular bending; stamping. INGENIEURBURO SCHIFFBAU VEB. 10 Sept., 1969, No. 44765/69. Headings B3E and B3O. A device for the connection of the plunger heads 1 of multi-plunger presses comprises intermediate pieces 2 rotatably connected to one another at their centres while the ends of the pieces 2 are mounted by pins 3 in slots 4 of guide parts 5 on the plunger heads.
Patent GB-1058251-A (GB)
Title: Concrete or like mixer
IPC: B28C5/18
Filed: 1961-12-15
Abstract: 1,058,251. Concrete mixers. P. L. CULLIMORE and C. S. HARRIS. March 13, 1963 [Dec. 15, 1961], No. 45085/61. Heading B1C. A manually-operated -concrete mixer comprises a mixing drum 21 having a rolling surface 32 and means such as a ground wheel 30 or skid to support the rolling surface in contact with the ground with the axis of the drum inclined to the vertical. As shown, the axle of  the drum and wheel passes through a sleeve 33 to which is attached a handle 34. The drum may be tipped so that its mouth 25 is in contact with the ground to discharge it, Fig. 2 (not shown). The wheel 30 may be removed and the free end of the axle rest in a socket in the ground for operations in a confined space. In larger size, the handle may be dispensed with and the mixer drawn by a tractor.
Patent GB-1155118-A (GB)
Title: Protective Electric Circuits for Electrically-heated Blankets or Pads
Inventor: OWERS LEONARD CHARLES
IPC: H05B1/02
Filed: 1966-10-10
Abstract: 1,155,118. Protective arrangements. DREAMLAND ELECTRICAL APPLIANCES Ltd. 29 Nov., 1967 [10 Oct., 1966], No. 45122/66. Heading H2K. In a protective arrangement for an electrically heated blanket or pad having a dual coaxial heating element 1, a fuse 5 and a halfwave rectifier 6 are connected in series with at least one of the heating conductors 2, 3, so that a fault between the heating conductors 2, 3, short circuits the rectifier 6 and the resulting increase in the r.m.s. current through the fuse 5 ensures the blowing of the fuse. In Fig. 2 (not shown) the connections of the ends of the conductor 3 are reversed, in Fig. 3 (not shown) the conductor 3 is in a closed loop connected to the lower terminal 4 and in Fig. 4 (not shown) the rectifier is a silicon controlled rectifier with a circuit to fire it on alternate half cycles.
Patent GB-1337296-A (GB)
Title: Method for the epoxidation of ethylene
IPC: C07D301/19
Filed: 1971-09-28
Abstract: 1337296 Ethylene oxide ATLANTIC RICHFIELD CO 28 Sept 1971 [4 Dec 1970] 45151/71 Heading C2C Ethylene oxide is prepared by epoxidation of ethylene by reaction with tertiary butyl hydroperoxide in the presence of a molybdenum catalyst and, as solvent, benzene, an alkylated benzene having 1-6 carbon atoms in the alkyl group or groups or a C 7 -C 14  alkane, the reaction being effected at 80-115‹ C. with a mole ratio of ethylene to hydroperoxide of 5 ; 1 to 20 : 1 and mole ratio of solvent to hydroperoxide of 12 : 1 to 25 : 1. Many molybdenum compounds which can be employed as catalyst are listed as are a large number of solvents, a preferred solvent being tertiary butyl benzene.
Patent GB-1450689-A (GB)
Title: Circuit ar'ngements
IPC: H01L23/31
Filed: 1973-09-27
Abstract: 1450689 Glass ceramic covered circuit elements INTERNATIONAL STANDARD ELECTRIC CORP 27 Sept 1973 45216/73 Heading C1M [Also in Division H1] In an electronic circuit comprising an unencapsulated device mounted on a circuit board wherein the contact areas of the device have been connected either directly or indirectly to circuit paths or another device on the circuit board, the unencapsulated device is individually embedded in a drop of a glass ceramic melted and partially crystallized. A silicon transistor 3 is bonded to a gold film 2 on a substrate 1. A1 or Cu wires 4 are connected by ultrasonic welding. Pulverized Pb Zn borate glass is mixed with an organic binder and a drop placed on the chip 3. The coated chip is heated to evaporate the organic binder and melt the glass. The gold film 2 may be replaced by tantalum resistors and the transistor chip by a diode, an MOS capacitor, or a ceramic chip resistor or capacitor.
Patent GB-1167511-A (GB)
Title: Improvements in or relating to Mooring Apparatus
Inventor: HALBERG PAUL VILHELM
IPC: B63B21/28
Filed: 1966-10-11
Abstract: 1,167,511. Embedment anchor mooring. MAGNAVOX CO. 11 Oct., 1966, No. 45377/66. Heading B7S. A mooring device 11 comprises an elongated ontainer 17 having top and bottom openings, a first cable 18 having one end portion secured to the container and the other end portion passing through the top opening, the portion of cable 18 between the end portions being packed in the container, and an anchor 22 disposed within the container and encircled by the pack of the first cable 18, the anchor being connected to the container by a second cable 23 and being dischargeable through the bottom opening of the container. In the embodiment described the second cable is also packed in the container 17 and the anchor is that described and claimed in Specification 1,167,512.
Patent GB-1277300-A (GB)
Title: Improvements in or relating to self-contained flushing toilets
IPC: E03D5/016
Filed: 1969-09-15
Abstract: 1277300 Valves KOEHLER-DAYTON Inc 15 Sept 1969 [7 Oct 1968] 45455/69 Heading F2V [Also in Divisions E1 and F1] In a self-contained sewage system pressure is applied to a liquid reservoir 20 for a predetermined time period to empty the reservoir and then suction is applied to cause it to refill with liquid to a predetermined level, and comprises a Venturi 45 connected via an inlet valve 32 to a source of air, a normally closed valve 51 to restrict air flow through said Venturi, pneumatic time delay means for opening the valve 51 after a predetermined time period to permit air to flow freely through the Venturi thucs ausing suction to be applied through a vacuum line to the reservoir 20, and means connected to the inlet valve 32 responsive to the liquid level in the reservoir for closing the inlet valve 32. Depression of handle 42 opens the valve 43 thus venting the chamber 39 via the passage 44 and the diaphragm 37 moves up to open the valve 36 allowing air to flow to the Venturi inlet 46 and so to the reservoir 20 to discharge the same to flush the bowl 15 into the tank 10. Pressure is applied through line 48 to the upper side of diaphragm 49 holding valve 43 in the open position. Positive pressure is also applied on line 58 to the flow restrictors 60, 61 which meter the air into the chamber 62, thus in time opening the valve 51 to allow air flow through the Venturi 45. The time at which the valve fully opens can be adjusted by screw 61. A reduced pressure now exists in line 47 thus causing liquid to flow from holding tank 10 via filter 25 into the liquid reservoir 20 until the float valve 67 closes and reduces pressure in line 48 to act on diaphragm 49 and close the valve 43. Valve 36 will then close to terminate the flow of air through Venturi 45. Adjustment screw 81 biases spring 63 to act against diaphragm 82 together with pressure from line 75 to provide a means for preventing the pressure in the reservoir 20 from exceeding a predetermined value.
Patent GB-1408058-A (GB)
Title: Preparation of m-cymene
IPC: B01J27/00
Filed: 1972-10-03
Abstract: 1408058 Meta-cymene COSDEN TECHNOLOGY Inc 3 Oct 1972 [5 Oct 1971] 45611/72 Heading C5E Meta-cymene is prepared by alkylating toluene with propylene in the presence of a Friedel-Crafts catalyst to form a mixture of cymene isomers, separating the catalyst and any excess toluene from the mixture and then distilling the meta-cymene from the rection mixture using at least 150 distillation trays with a reflux ratio of between 40 : 1 and 150 : 1. The catalyst may be AlCl 3  promoted with water or HCl. The bottoms mixture from the distillation, catalyst residue (red oil), and the excess toluene, may be returned to the reactor with fresh quantities of propylene, make-up catalyst and toluene whereby simultaneous alkylation, isomerization and transalkylation occur.
Patent GB-1283282-A (GB)
Title: A tubular heat exchanger
IPC: F28F9/013
Filed: 1970-09-24
Abstract: 1283282 Tubular heat exchangers WAAGNER-BIRO AG 24 Sept 1970 [26 Sept 1969] 45672/70 Heading F4S In a heat exchanger comprising a plurality of annular groups 1 of spirally wound tubes separated from one another by frusto-conical baffles 9, the tubes are spaced apart by a plurality of spacer members 3 extending between and welded to an arrangement of inner and outer circumferentially spaced alongate support bars 4 and 5 extending parallel to the central axis of the heat exchanger. The baffles 9 are also welded to the support bars. A centrally located inverted conical baffle 2 serves to guide one heat exchange fluid over the surface of the spiral tubes through the interior of which the other heat exchange fluid flows. As shown, the spacer members, which serve to maintain a given spacing both between adjacent convolutions of the same tube and convolutions of adjacent tubes, are in the form of metal wires of wave-shaped configuration. In an alternative embodiment (Fig. 6, not shown), the spacer members are in the form of annular rings or sleeves (6) which surround and engage tube convolutions and are welded to each other at their points of contact and to the support bars. In a further embodiment (Fig. 7, not shown), the spacer members comprise angled strips (7) of sheet metal which are welded together to form a honeycombe structure, the ends of the strips being welded to the support bars. The strips may alternatively be wave-shaped (Fig. 8, not shown).
Patent GB-1314539-A (GB)
Title: Amphoteric copolymers and their use in the production of paper
IPC: D21H17/43
Filed: 1970-09-25
Abstract: 1314539 Paper-making BADISCHE ANILIN- & SODA FABRIK AG 25 Sept 1970 [27 Sept 1969] 45791/70 Heading D2B [Also in Division C3] In the production of paper from paper pulp there is used as a dewatering agent a copolymer comprising (a) 10-30% molar of acrylic and/or methacrylic acid units, (b) 30-50% molar of units of a basic comonomer of the formula  where R<SP>1</SP> is H or methyl, R<SP>2</SP> is C 2 -C 6  alkylene, R<SP>3</SP> is C 1 -C 4  alkyl, R<SP>4</SP> is C 1 -C 4  alkyl and X is 0 or NH, (c) 20-60% molar of acrylamide and/or methacrylamide units and (d) 0-40% molar of units of a C 1 -C 8  alkyl acrylate and/or methacrylate and/or another neutral comonomer. Suitable other comonomers (d) include styrene, chlorostyrene, α-methylstyrene, vinyl C 1 -C 4 -alkyl ether and N-vinyl lactams, e.g. N- vinyl pyrrolidone. Before use aqueous solutions of the copolymer are preferably adjusted to pH 4-6. Dilute polymer solutions are continuously added to the pulp just before the breast box. The amount of copolymer used is suitably from 0.005-0.5% based on the weight of dry pulp. The copolymers also serve as retention aids.
Patent GB-1148766-A (GB)
Title: Process for the preparation of beryllium products
Inventor: LOGEROT JEAN-MARIE
IPC: C22F1/16
Filed: 1966-10-13
Abstract: 1,148,766. Jointing by rolling. COMMISSARIAT A L'ENERGIE ATOMIQUE and COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES PECHINEY. 13 Oct., 1966 [14 Oct., 1965], No. 45831/66. Headings B3A and B3M. A method of cladding beryllium with at least one layer of metal comprises preparing a beryllium blank from a cast ingot and bonding thereto at least one layer of metal, e.g. aluminium, magnesium, zinc, antimony, subjecting the cladded blank to mechanical treatment, e.g. any one or combination of rolling, extrusion, drawing, hammering, at a temperature below 620‹ C. and preferably between 300‹ and 400‹ C. The beryllium blank is formed from an ingot by a hot treatment, e.g. extrusion or forging, followed by heat treatment to give a surface hardness. The surface of the blank may be planed or sanded before cladding. The blank is then cut to the required size and pickled in a nitric acid-hydrofluoric acid bath to remove the oxide layer. The blank is introduced between a pair of cleaned aluminium sheets and heated up to 400-600‹ C. for 15 minutes. The composite is then passed several times through the heated rolls of a rolling mill to effect at least 33% reduction and reheated to 600‹ C. for 5 minutes. After rolling the blank is allowed to cool in a mineral insulant. The finished clad composite can be further heat treated to reduce internal stresses.
Patent GB-1074999-A (GB)
Title: 3-benzyl hydantoins
IPC: C07D233/72
Filed: 1965-11-01
Abstract: The invention comprises 3-benzyl hydantoins of formula <FORM:1074999/C2/1> wherein R1 is a C1-C3 alkyl group and R2 is a benzyl radical which may be substituted by 1 or 2 chlorine atoms or an a -methyl group.  They may be prepared by cyclization with dilute mineral acid of the corresponding hydantoate compound which is prepared by converting the appropriate amine acid ester to the corresponding isocyanato compound by reaction with phosgene which is then reacted with a suitably substituted benzylamine.  The compounds are herbicides (see Division A5).  The examples describe the preparation of 3-benzyl-5-methyl-, 3 - (2 - chlorobenzyl) - 5 - methyl -, 3 - (4 - chlorobenzyl) - 5 - methyl -, 3 - (a  - methylbenzyl) - 5 - methyl -, 3 - benzyl - 5 - ethyl -, 3 - benzyl - 5 - isopropyl -, 3 - (2 - chlorobenzyl) - 5 - isopropyl - and 3 - (2,4 - dichlorobenzyl) - 5 - isopropyl-hydantoins. Also described is the preparation of ethyl-2-isocyanatopropionate, ethyl 2-isocyanatobutanoate, and ethyl 2-isocyanato-3-methyl butanoate.ALSO:Herbicidal compositions comprise 3-benzyl hydantoins of formula <FORM:1074999/A5-A6/1> wherein R1 is a C1-C3 alkyl group and R2 is a benzyl group which may be substituted by 1-2 chlorine atoms or an a -methyl group, in conjunction with an inert carrier which may be solid or liquid.  The compositions can also include surfactants, humectants, oils, contact agents or other herbicides such as sodium chlorate, borax and sodium metaborate, 2, 3,6-trichloro - benzyloxypropanol, the chloro - phenoxy acetic acids, trichlorobenzoic acids, substituted ureas, triazines uracils and carbomates.  The compositions are useful for pre-or post-emergence treatment.
Patent GB-952043-A (GB)
Title: Improvements in or relating to laminated pressure vessels
IPC: F16J13/02
Filed: 1962-12-07
Abstract: 952,043. Making pressure vessels; welded joints. A. O. SMITH CORPORATION. Dec. 7, 1962 [Dec. 22, 1961], No. 46219/62. Headings B3A and B3R. A pressure vessel has its wall formed by a plurality of concentric layers 7, 8 and its open end has threaded holes 10 for receiving fixing means 14 such as studs for the end plate 5. A weld deposit 16 may be applied to seal the ends of the sheet-metal laminations. The studs have a small thread angle, such as a modified square or buttress thread, Fig. 2 (not shown). The bottom of the vessel is closed by an end section 2, which may also be laminated, welded at 6. Vent holes 9 are provided in the layers.
Patent GB-1277072-A (GB)
Title: A fastening device for securing sheets to sectional beams
Inventor: BADRE EMILE JEAN-BAPTISTE
IPC: E04D3/36
Filed: 1969-09-19
Abstract: 1277072 Panel fastening clip; hook fastenings E J B BADRE and A A HENRY 19 Sept 1969 [19 Sept 1968 26 Feb 1969] 46259/69 Headings E1W and E2A A U shaped fastening clip for securing a sheet 15 having at least one hollow or concave portion onto the flange of a supporting member comprises a long leg 2 and a short leg 3 connected by a transverse body portion 4, the long leg 2 being formed with a concave or recessed portion 6 closely adjacent the body portion 4. The long leg 2 of the clip which engages the top flange 22 of the supporting member has a down turned end portion 5 which may be bent underneath the said supporting flange 22. A bolt 18 which has a hook or an eye engaging the recessed portion of the clip 4 passes through the sheet in the region of a concave portion 16 where the sheet may be reinforced by a washer 21 or a backing plate (34) Fig. 10 (not shown). The clip may be bent from steel rod, steel sheet, or may be cast in one piece. When bent from sheet the supporting rod 7 has a T shaped head 8 which engages the clip through a hole 9 in the top of said concave portion, when the clip is cast it may be formed with an aperture (32) Fig. 6 (not shown) through which the hook or eye of the bolt is engaged. A clip may be fixed to a sheet by more than one bolt in which case the clip has more than one recessed portion to receive the bolt heads.