baber/WOPTO huggingface dataset:
Patent GB-1335501-A (GB)
Title: Grab buckets
IPC: E02F3/413
Filed: 1972-01-11
Abstract: 1335501 Grab buckets POCLAIN 11 Jan 1972 [18 Jan 1971] 1124/72 Heading B8H In a grab bucket in which the shell members 5, 6 are pivotally mounted on a piston-rod 1, 2 of a double-acting ram and are connected by links 7, 8 to the ram cylinder 9, the piston-rod is formed in two parts 1, 2 which are relatively rotatable about a vertical axis by means of an hydraulic motor 3. A speed reducer 3a mayrbe provided and the motor 3 may be replaced by an electric motor.
Patent GB-490525-A (GB)
Title: Improvements in or relating to thermionic valve amplifier circuits
IPC: H03F1/50
Filed: 1937-01-14
Abstract: 490,525. Impedance networks; valve circuits. PERCIVAL, W .S. Jan. 14, 1937, No. 1143. [Classes 40 (iii) and 40 (v)] In a valve coupling designed to yield uniform amplification together with considerable stage gain, the anode-cathode capacity of a valve 5, Fig. 1, and the grid-cathode capacity of a valve 8 are elements in a low-pass filter which comprises also coupled inductances 6, 11 and a terminating impedance 15, 16, 17. In a circuit of this type described in Specification 475,490 the two interelectrode capacities are assumed to be equalized, but in the present invention the anode capacity may be twice as great as the grid capacity. The network is regarded as being derived from a ladder filter having series inductances 2L and shunt capacities 2C, and an equivalent network is shown in Fig. 3. The coupled coils 6, 11 are represented in Fig. 3 by a star of inductances, the anode capacity of valve 5 by a condenser 2m1C, and the grid capacity of valve 8 by a condenser (1+a)C; the filter is thus terminated by a series-m-derived half section, mL (made up of 14 and part of 11), 15, 16, together with a resistance 17 equal to the nominal impedance L/C of the network, so that reflection is suppressed. At the middle of the network is an m-derived section in which the factor m has a value ml different from that adopted for the terminating half section, while the series elements m1L are constituted by part of the inductances 6, 11. At the right-hand end is a half section of the prototype from which the remaining sections are derived; this comprises an inductance L, constituted by part of inductance 6, and a capacity (1 + a)C representing the grid capacity of valve 8. It is shown that if m1>1 as is required by practical conditions, and if a= 1 in accordance with Specification 475,490, then the overall response will fall with frequency. This disadvantage is avoided by making a less than 1, and in a case in which M1=2, a is made to be 0À45, and the response characteristic is further flattened by resistance in or added to the coil 6. In practice the ratio of the electrode capacities is given, and since it is equal to 2m1 /(1+a), suitable values of m1 and a can be chosen accordingly. If the anode capacity of valve 5 is less than the grid capacity of valve 8, the positions of the valves are interchanged, Fig. 4 (not shown). In practice the inductances 6, 11 may be altered to L /2 and L /4 respectively, the mutual inductance being adjusted accordingly. Specification 484,404 also is referred to.
Patent GB-546865-A (GB)
Title: Improvements in the preparation of tocopherol concentrates
IPC: A61K31/355
Filed: 1941-01-31
Abstract: 546,865. Vitamins. POTTS, H. E. (Distillation Products, Inc.). Jan. 31, 1941, No. 1275. [Class 2 (iii)] Tocopherol is obtained from a sludge or scum produced in the carrier gas treatment of vegetable oils, by treating the scum or sludge or a distillate from it with a lower aliphatic alcohol and an esterification catalyst to esterify fatty acids, the esters being then separated from the tocopherol by distillation. If desired the scum or sludge may be pretreated for instance with acids, alkalies or solvents. Suitable catalysts are sulphuric, hydrochloric and phosphoric acids. The treatment may be effected in inert gas or with the addition of a reducing agent such as zinc dust, iron, tin, stannous chloride and sodium hydrosulphite. Examples are given. The Provisional Specification contains an additional example of the treatment of a high vacuum distillate from corn oil.
Patent GB-1113761-A (GB)
Title: Improvements in or relating to hinge assemblies
Inventor: ENGSTROM PETER NORMAN
IPC: A47K13/26
Filed: 1966-01-12
Abstract: 1,113,761. Hinges and pivots E. K. COLELtd. 11 Jan., 1967 [12 Jan., 1966], No. 1407/66, Heading C2F. A pivoting support, e.g. for a closet pan seat, comprises an axle rod 1 supported by two pillars 2 through which it passes, and collars 8 which retain it laterally. The pillars are secured to a fixture, e.g. the closet pan, by bolts 5 and nuts 6. The head of the bolt is retained in the pillar by the nut in a T-shaped slot in a retaining bracket 3, which has at its upper (other) end a non-circular hole through which the axle rod passes (Fig. 2, not shown). Tightening of nuts 6 to secure the pillars also locks the axle rod in the pillars, due to a downward thrust on the bracket and hence on the axle.
Patent GB-413643-A (GB)
Title: Improvements relating to safety devices for the covers of centrifugal machines
IPC: B04B7/06
Filed: 1933-01-17
Abstract: 413,643. Safety devices for centrifugal machines. BROWN, C., 16, Haypark Avenue, Belfast. Jan. 17, 1933, No. 1497. [Class 80 (iv).] A safety device for the covers of centrifugal machines, particularly hydro-extractors, comprises a latch for automatically locking the cover closed, means for withdrawing the latch, and centrifugal members moving outwards to prevent a part of the latch-operating means from passing said members when the machine is running. Fig. 1, relating to an over-driven hydro-extractor, shows the centrifugal fingers 5 which when swung outwards prevent the lifting of a ring 6, pivoted at 6<a>, by a fork 7 operated by an external handle. When at rest, however, the ring 6 will pass the fingers 5 and a rod connected to the arm 8 depresses an arm 19, Fig. 3, to lift a pin, which is in two spring- pressed parts 15, 17 with pin-and-slot connection, from a hole in a bar 13. Two arms 9 carrying the two halves of the cover of the basket may then be swung out horizontally on spindles 10 provided with pinions 11 engaging racks 12 on the bar 13, so that the bar is moved longitudinally inwards. In this position of the bar 13 a projection on its outer end enters a recess in the belt-fork operating-lever, which has been moved into machine-stopping position, so that the operating-lever cannot be moved to re-start the machine until the bar 13 has been moved by closing the cover (Fig. 5, not shown). In Fig. 7, showing an under-driven machine, the centrifugal fingers 5, when at rest only, permit ring 6 to rise on depression by hand of an arm 26<a> of a bell-crank withdrawing a spring latch 27<a> from projection over the cover 28. The handle 31 operating the belt-shifting fork 31<a> has a part 31b which extends near to the cover 28 and either prevents movement of the fork should the cover be open, or closes the cover on movement of the fork. The part 31b may constitute a support for the cover when open.
Patent GB-124411-A (GB)
Title: Improved Means for Securing the Pole Shoes of a Magneto Electric Machine.
IPC: H02K21/32
Filed: 1919-01-21
Abstract: 124,411. British Lighting & Ignition Co., and Bennett, A. E. Jan. 21, 1919. Magneto - electric machines.-The poleshoes A<1>, A<2> are secured to the baseplate by screws F<1>, F<2> which pass through holes provided in the laminµ and are threaded into the horizontal rivets E<1>, E<2> which hold the laminµ together. The rivets E<1>, E<2> are of rectangular or other section. The upper parts of the pole-shoes are preferably fixed to the magnet limbs by means of a non-magnetic member G.
Patent GB-1411202-A (GB)
Title: Vulcanizing process and composition
IPC: C08L27/00
Filed: 1974-01-14
Abstract: 1411202 Vulcanizing halogen-containing rubber SUMITOMO CHEMICAL CO Ltd 14 Jan 1974 [12 Jan 1973] 01731/74 Heading C3E A vulcanizable composition contains a rubber base comprising a halogen-containing amorphous polymer and from 0.01 to 20 parts by weight per 100 parts of rubber base of a vulcanizing agent which is an organic hydroperoxide and/or a ketone peroxide. Examples are given in which (a) a chloroprene rubber formulation contains alpha-cumyl hydroperoxide and, as activator, p-quinone dioxine, ethylene glycol dimethacrylate, N,N<SP>1</SP>-m-phenylene bismaleimide the naphthenate of cobalt, iron or chromium, cobalt abietate, magnesium oxide or lead oxide; (b) a chlorinated ethylene/propylene/5-ethylidene-2-norbornene rubber formulation contains the said hydroperoxide and quinone dioxime; (c) - a chloroprene rubber, alone or together with ethylene / propylene / 5 - ethylidene - 2 - norbornene rubber, formulation contains the said hydroperoxide, cobalt abietate and quinone dioxime and (d) a chloroprene rubber formulation contains cobalt abietate, tert-butyl hydroperoxide, m.p-diisopropylbenzene monohydroperoxide, p-menthane hydroperoxide or methyl ethyl ketone peroxide.
Patent GB-1457092-A (GB)
Title: Acyloxy-phenylethanolamines
IPC: C07C213/00
Filed: 1975-01-15
Abstract: 1457092 o - Acyl - phenylethanolamines KLINGE PHARMA GmbH & CO 15 Jan 1975 [15 Jan 1974] 1835/75 Addition to 1358973 Heading C2C The invention comprises compounds having the general formula wherein R 1  is a methyl, methoxy or chlorine substituted benzoyloxy radical, R 2  is C 1  or C 2  alkyl, and n is 1 or 2, the substituent(s) R 1  being in the 3<SP>1</SP>-, 4<SP>1</SP>-, or 3<SP>1</SP>,5<SP>1</SP>-positions. They may be prepared by debenzylating a ketone of the formula and reducing the product to the alcohol. The compounds of the invention exhibit sympathicmimetic effects and may be used in pharmaceutical compositions.
Patent GB-223101-A (GB)
Title: A new or improved process for the treatment of green fodder
IPC: A01F25/14
Filed: 1924-01-23
Abstract: 223,101. Rushen, P. C., (Siemens- Schuckertwerke Ges.). Jan. 23, 1924. Screw and worm conveyers.-A conveyer 2 forming part of an apparatus by which green fodder is heated and compressed, and is bound into bales, is heated by a steam coil 4.
Patent GB-524002-A (GB)
Title: Improvements in or relating to book rests
IPC: A47B23/04
Filed: 1939-01-19
Abstract: 524,002. Reading desks. HUBBARD, H. B. F. Jan. 19, 1939, No. 1880. [Class 52 (v)] A reading desk 1 is carried by a flexible standard 5 the lower end of which is carried by a member 7 provided with a clamp 8 to enable the apparatus to be secured to furniture. Specification 9476/93, [Class 52] is referred to.
Patent GB-606826-A (GB)
Title: Improvements relating to pressure cabins
IPC: B64D13/04
Filed: 1946-01-19
Abstract: 606,826. Aircraft pressure cabins. VICKERS-ARMSTRONGS, Ltd., and STEPHENSON, B. Jan. 19, 1946, No. 1880. [Class 4] [Also in Groups X and XVIII] An aircraft pressure cabin of circular crosssection has the window, door and like openings, and the windows, doors and like members relating thereto, of substantially the shape of an ellipse of which the major and minor axes are so proportioned that the ratio of their squares is equal to the ratio of the circumferential and longitudinal loads per unit width in the shell of the cabin, and the major axis is disposed circumferentially of the shell. As shown in Figs. 1 and 3, the boundary member of a window opening consists of an elliptical hoop 10 of channel-section having flanges 101, 102 riveted to the cabin plating 11. The flange 102 forms a seating for a resilient sealing strip 14 enclosing the rim of a double window 12 (see Group X) which is normally maintained in position by the internal air pressure, withdrawable bolts 15 being provided to support the window against inward displacement if the external pressure exceeds that in the interior of the cabin., The door shown in Figs. 4 and 5 is arranged to open outwards, and is provided with an elliptical boundary member 20 of Z- section riveted to sheets of plating 21, 22. The member 20 has an outwardly-directed flange 201 which co-operates with an inflatable sealing tube 23 carried by an elliptical door-frame member 24, the latter forming part of a builtup structure attached to the circumferential frame members 25 of the cabin. The door is hinged at 26 and is held closed by a plurality of bolts 27 operable simultaneously by a central hand wheel 29.
Patent GB-1536062-A (GB)
Title: Switching circuit
IPC: H03K17/732
Filed: 1977-01-18
Abstract: 1536062 Switching circuit RCA CORPORATION 18 Jan 1977 [23 Jan 1976] 01902/77 Heading H2F [Also in Divisions F1 and H3] A switching circuit is substantially as shown, Fig. 1 having a GTO thyristor 13, load 15, charge storage means 17 and isolation means 23, which may be a diode, for preventing 17 from discharging through the load. To switch on, 19 is connected to 27, applying a turn-on voltage to the gate of 13, 21 may then be set to the neutral position if desired, the thyristor remaining conductive. To switch off, 19 is connected to 25, effectively grounding the gate and causing 17 to discharge via the GTO cathode and gate. In Fig. 2 not shown the switch 21 is replaced by a transistor connected between 27 and 25, 19 being joined to 27, and the load is an ignition coil. The shunt path provided by the capacitor and diode protects the GTO from damage when inductive loads are switched.
Patent GB-452086-A (GB)
Title: Improvements in or relating to seals
IPC: G09F3/03
Filed: 1936-01-21
Abstract: 452,086. Labels or seals. BYRNE, J. A., 416, Valley Road, West Orange, New Jersey, U.S.A.. Jan. 21, 1936, No. 1916. Convention date, Jan. 21, 1935. [Class 73] An adhesive seal adapted to be pasted on boxes, folders, or containers to prevent unauthorized opening thereof comprises a central area of relatively easily tearable material 1, such as paper, adapted to be pasted to the box &c., and a marginal area of not easily tearable material 2, such as linen or parchment, also adapted to be pasted to the box &c., and provided with weakening perforations 4 in the area 1 for the purpose of ensuring the seal becoming torn on removal from the box &c. The stronger material 2 reinforces the material 1 at the margins and across the centre, is affixed to the imdersurface of the material 1 by adhesive, and is provided with tabs 5 which are not gummed whereby the seal can be readily broken. The material 1 may be paper such as is used for bank cheques or the like, so that any workings thereon cannot be altered without detection.
Patent GB-102289-A (GB)
Title: Pen.
Inventor: GEORGE ROSS FREDERICK
IPC: B43K1/04
Filed: 1916-02-09
Abstract: 102,289. George, R. F., and Gordon, W. H. Feb. 9, 1916. Reservoir nibs. - A pen suitable for lettering display cards comprises a pen 1 having its tip 11 bent upwardly to form a downwardly-facing writing-plane, and a feeding-attachment 2 the tip 27 of which overlies the tip 11, the extreme edges 12, 26 of the tips being in register, so as to form, when the pen is turned over, a writing-surface producing fine lines. The tip 11 is rectangular in shape and may be split into several tangs. The attachment 2 is brought into substantial contact with the pen at a point 25 so as to form a feed-channel connecting the supplementary reservoir between the tips with the main reservoir between the pen body and the attachment 2. The feeding-attachment is secured to the pen by means of a band 20 having its ends 21 bent over the edges of the pen, and a projection 22 bent down to engage an aperture 13. The tip 11 of the pen may be circular, in which case strokes in all directions will produce lines of uniform width.
Patent GB-939213-A (GB)
Title: Method of making a nickel-magnesium hydrocarbon-steam reforming catalyst
IPC: B01J23/70
Filed: 1960-01-19
Abstract: Hydrogen and carbon oxides are formed by effecting the hydrocarbon-steam reforming reaction in presence of a catalyst prepared by admixing a nickel compound (the oxide or a compound convertible thereto by heating in air) with alumina or magnesia and with a binder, and sufficient water to provide a dough-like mass, shaping, calcining the shapes to incipient fusion and grinding the calcined product.  A ball clay, kaolin or bentonite may be used as an additional component of the catalyst mixture. The binder has the composition CaO 60-67%, SiO2 18,5-25,5%, Al2O3 3-7,5%, MgO 0,5-5,5%, other metal oxides (impurities, e.g. Fe2O3, alkali and alkaline earth metal oxides excluding CaO) balance; it is prepared by calcining to incipient fusion a mixture of calcaveous and argillaceous materials and grinding the product.  Examples are given.
Patent GB-264328-A (GB)
Title: Improvements relating to the use of rear-light reflectors in connection with pedal cycles
IPC: B62J6/20
Filed: 1926-01-23
Abstract: 264,328. Round, H. Jan. 23, 1926. Reflectors. - A rear-light reflector b is attached to a trouser clip or like device a for applying it to the leg or shoe of a cyclist so that a moving reflected light is returned to an overtaking vehicle.
Patent GB-540680-A (GB)
Title: Improvements in buoyant life-saving equipment and other buoyant structures
IPC: B63C9/08
Filed: 1940-02-01
Abstract: 540,680. Buoyant stuffing materials, floats, rafts, caissons, aircraft, &c. COMPTOIR DES TEXTILES ARTIFICIELS. Feb. 1, 1940, No. 2011. Convention date, Feb. 4, 1939. [Classes 68 (ii) and 77] [Also in Group XXXIII] The interiors of floats, buoys, rafts, life-saving equipment, aircraft equipment, fluid-tight caissons &c. are filled with numerous thin fluidtight envelopes containing artificial filamentary products containing more or.less evenly spaced gas bubbles. The envelopes may be of rubber and consist of two parts having overlapping edges which after the filling operation are hermetically sealed together. A suitable filling material is obtained by injecting air or other gas into a stream of a coagulable liquid such as viscose into a coagulating medium such as an acid bath, as described in French Specification 803,144. The Specification as open to inspection under Sect. 91 stated that the envelopes may be filled with kapok or pieces of cork. This subjectmatter does not appear in the Specification as accepted.
Patent GB-415379-A (GB)
Title: Improvements in and relating to methods and machines for mixing concrete and other granular materials
IPC: B28C5/32
Filed: 1933-01-21
Abstract: 415,379. Mixing-machines. HARRISON, N., 18, Killowen Street, Low Fell, Co. Durham. Jan. 21, 1933, No. 2045. [Class 86.] In a mixing-machine for concrete and other granular materials a number of stirrers are provided, each comprising wide blades on radial arms, and the stirrers are rotated in opposite directions, one to another, in a rotary pan. By these means piling of the material either at the centre or edge of the pan is avoided. In the form shown, four stirrers are provided, the stirrers B, D rotating with the pan A, while C and E rotate in the opposite direction. In each stirrer one of the blades may be replaced by a roller, or a roller may be mounted on a pivoted trailing bracket near the edge of the pan ; the bracket may be mounted so that the roller pushes into the material instead of being trailed.
Patent GB-711080-A (GB)
Title: Improvements in safety valves for steam pressure cookers or the like
Inventor: PRICE FRANK HENRY
IPC: A47J27/09
Filed: 1952-01-25
Abstract: 711,080. Pressure-relieving devices. ECLIPSE METAL INDUSTRIES, Ltd. Jan. 26, 1953 [Jan 25, 1952], No. 2046/52. Class 135 A pressure relief plug for a pressure cooker comprises a resilient disc 6a housed in a stepped ring 5 and normally seating against a flange 2 surrounding a stepped hole 7 in the lid or wall 1 of the cooker. The ring 5 is held in position by infurning a flange 6 surrounding the hole on the inner face of the lid or wall.
Patent GB-1030092-A (GB)
Title: Improvements in or relating to bearings
Inventor: MARTIN FREDERICK ALEXANDER
IPC: F16C33/10
Filed: 1964-01-16
Abstract: 1,030,092. Bearings. GLACIER METAL BOX CO. Ltd. April 13, 1965 [Jan. 16, 1964], No. 2084/64. Heading F2A. In a plain bearing the inner surface has a circumferential oil-distributing groove 3 located intermediate its length and has at each side of the groove a circumferential series of alternate raised lands 1 (which constitute bearing areas) and depressions 2. Each land 1 on one side of the groove 3 may lie opposite to a land 1 on the other side of the groove 3 or each land 1 on one side of the groove 3 may lie opposite to a depression 2 on the other side of the groove 3. The width and/or depth of the depressions 2 may diminish progressively from the groove 3 towards the respective end of the bearing. Oil may be fed to the groove 3 from a hole 4.
Patent GB-1171432-A (GB)
Title: Improved Tool Holder
Inventor: HERTEL KARL
IPC: B23B27/16
Filed: 1968-01-15
Abstract: 1,171,432. Cutting tools. K. HERTEL. 15 Jan., 1968 [20 Jan., 1967], No. 2099/68. Heading B3T. A cutting tool comprises a holder body 1 having an insert receiving recess 2 in which an insert 6 having square spaced parallel surfaces 9, 10 and a concave peripheral surface is clamped by means of a pin member 13, the two wall faces 4 and 5 of the recess being provided with support members 24 which co-operate with two adjacent sides of the peripheral surface. The respective support members are pivotable about an axis perpendicular to the surface of the wall faces 4 and 5 of the recess to permit accurate alignment with the concave surfaces of insert. The concave peripheral surface of the insert may be arcuate or formed by two inclined planar surfaces 7, 8. The support members 24 are in cross-section segmental in shape.
Patent GB-527012-A (GB)
Title: Manufacture and application of new condensation products
IPC: D06M13/432
Filed: 1939-01-21
Abstract: 527,012. Waterproofing textiles. SOC. OF CHEMICAL INDUSTRY IN BASLE. Jan. 21, 1939, Nos. 2127, 2128 and 2130. Convention dates, Jan. 22, 1938, April 14, 1938, and Jan. 3, 1939. Sample furnished. [Class 140] [Also in Group IV] New condensation products, useful for waterproofing textile materials, are made by causing a methylol compound of a carboxylic acid amide and of an urethane which contains at least one organic residue having at least 14 carbon atoms to react with a compound which contains or can react in the form of the atom grouping Such compounds are thiourea, N - methyl,- N:N'- dimethyl-, N:N:N'-, trimethyl-, N:N'- diethyl-thiourea, postassium N-phenylthioureap-sulphonate, N: N<SP>1</SP>-diethyl-N<SP>1</SP>-hydroxythiourea. monothiobuiret, and thioallophanic acid methyl ester. As carboxylic acid methylolamides, those of the following acids are specified: myristic, palmitic, stearic, oleic, arachic, hardened whale oil fatty acids, resinic or naphthenic acids ; also methylolamides of aromatic carboxylic acids substituted by alkyl residues in the nucleus or in a substituent, such as a hydroxyl group. As methylolamides of urethanes, the N-methyl compounds obtainable in. the usual manner from the urethanes corresponding with the fatty alcohols of high molecular weight are specified. The reaction may be effected in a solvent; preferably in the presence of a strong acid, e.g., hydrochloric acid, as a condensing agent. The products in the form of their salts with acids, are soluble in water. The stability of the solutions may be increased by adding auxiliary substances, such as thiourea, ureas, or capillary active products such as oleylated unsymmetrical diethylene or Á-heptadecyl- N - methyl - N' --ethylbenzimidazolium chloride. The products are decomposed by heat or by treatment with a saponifying agent, and when this decomposition is effected on a substratum, such as a textile material, waterproofing properties are imparted. In an example, the amide from hardened whale oil acids is converted into the methylolamide by treatment with paraformaldehyde in dimethylcylohexylamine, and the methylolamide is condensed with thiourea; cotton and viscose artificial silk fabrics are rendered water-repellent by treating with a solution of the product and drying.