baber/WOPTO huggingface dataset:
Patent GB-1518412-A (GB)
Title: High-impact polystyrene and process for the production thereof
IPC: C08F279/02
Filed: 1976-03-15
Abstract: 1518412 High-impact polystyrene compositions LABOFINA SA 15 March 1976 [15 May 1975] 10301/76 Heading C3M A high-impact polystyrene composition comprises a blend of: (a) impact-resistant polystyrene having a rubber particle size 5 of from 0À5 to 0À9 micron and (b) impact-resistant polystyrene having a rubber particle size L of from 2 to 5 microns. Examples are given in which two polybutadiene/styrene graft polymers are blended, optionally together with polystyrene and mineral oil.
Patent GB-454275-A (GB)
Title: Improvements in four-stroke cycle internal combustion engines
IPC: F02B1/00
Filed: 1935-04-04
Abstract: 454,275. Two - stroke combustion cycle followed by two-stroke air cycle. ROGERS, H. A., 58, Africa Gardens, Cardiff. April 4, 1935, No. 10427. [Class 7 (ii)] Compartments 11a, 11b in a rotary valve 11 driven at half crank - shaft speed, are permanently and respectively in communication with the mixturecharged crank-case 1 and the air or other non - combustible gas inlet 10. Alternately, they connect with the cylinders 16, 17 through passages 6, 7. The scavenging cycle may be eliminated by making the valve 11 slidable in its housing, and thereby avoiding connection with passage 10.
Patent GB-482845-A (GB)
Title: New or improved means for supporting a bottle or like receptacle during the filling thereof
IPC: B67C3/24
Filed: 1937-04-12
Abstract: 482,845. Filling bottles &c. DETREZ, R. April 12, 1937, No. 10428. [Class 125 (ii)] A device for supporting a bottle or like receptacle during filling, comprises a pair of jaws 6, 7 arranged to engage a rim or bead 18 on the receptacle at or near the free ends of the jaws and to pivot about horizontal axes, 4, 5 arranged at a lower level than the point or points at which the jaw engages the receptacle, the jaws being moved upwards and apart as the receptacle is inserted and gripping the receptacle under the action of the weight thereof. The jaws are opened against the action of a spring 10 as the receptacle is inserted between them and operates a member opening the filling nozzle 16 and as soon as the bead or rim 18 passes between the jaws they are closed by the spring and the weight of the bottle which is gripped by the wedging action of the jaws. The bottle is released after filling by lifting it slightly and raising the jaw 7 by moving a lever 19 integral therewith, the jaw 6 being raised at the same time by the connecting links 11, 12. The jaws may be closed by a counterweight on an extension of the link 11 or by the weight of the jaws themselves.
Patent GB-873294-A (GB)
Title: Improvements in suction cleaners
IPC: A47L9/00
Filed: 1959-03-26
Abstract: 873,294. Suction cleaners. ELECTROLUX Ltd. March 26, 1959 [April, 1, 1958], No. 10575/59. Class 8(1). The outlet of a cylindrical type suction cleaner being a rotor fan unit is provided with means whereby the air is discharged in an upward direction. The rear end cover 12, Fig. 3, has an air outlet 21 and a tube 26 extending into the casing whose axis is substantially horizontal when the cleaner is in use. Two vanes 42, 43 are axially spaced along the tube and are of crescent shape when viewed along the axis of the tube as shown in Fig. 5, the ends 44 and 46 extending to just below and above, respectively, the tube axis. The faces of the vanes nearest the front of the cleaner are convex and are at an angle of approximately 45 degrees to the tube axis. The outlet of the tube is shaped to receive a flexible tube when the cleaner is used as a blower and this may be attached to a spraying device. The end cover also houses a cable reel 36.
Patent GB-839929-A (GB)
Title: Shielding device for driving tools
IPC: B25C1/18
Filed: 1958-04-02
Abstract: 839,929. Explosively actuated driving tools. MINE SAFETY APPLIANCES CO. April 2, 1958 [June 12, 1957], No. 10577/58. Class 119 A two-part shatter guard for an explosively ' actuated driving tool comprises a shallow shield cup 8, Figs. 2, 3, having the shape of a segment of a circle and formed with a groove 10 in a flange 9 extending around the curved side of the shield cup, the latter also having an opening 11 adapted to receive the front end of the tool barrel, the opening 11 being concentric not only with the flange 9 but also with an opening 13 in a shield plate 12 having the same shape as the shield cup 8 and being detachably and rotatably supported by engagement of a rib 14 in the groove 10 of the shield cup. A pin 17 mounted in a hole 16 in the shield cup 8 is pressed against the back of the plate 12 by means of a leaf spring 18 and holds it, in any selected position which may be one in which the straight sides of the plate 12 and shield cup are coincident. The front face of the plate 12 may be provided with a channel-shaped member 21, Fig. 5 (not shown) for fitting over a wooden stud member or it may be provided with a tubular member 26, Fig. 6 (not shown) in which a barrel extension 27 is slidably mounted. Specification 839,930 is referred to.
Patent GB-1223608-A (GB)
Title: Displacement ship's hull form
Inventor: MESSERSCHMIDT WALTER
IPC: B63B1/04
Filed: 1968-03-05
Abstract: 1,223,608. Hull forms. INSTITUT FUR SCHIFFBAU. 5 March, 1968, No. 10584/68. Heading B7A. A ship's hull has vertical shipsides 36 extending downwardly to a juncture 34 with inclined sides 16 of the hull which extend between the vertical shipsides and the hull bottom from bow to stern of the hull. The juncture 34 extends continuously around the hull above the load waterline and the portion of the hull below the juncture is trapezoidal in crosssection. At least one chine 26 is located at the turn of the bilges.
Patent GB-482549-A (GB)
Title: A process for the reactivation of spent clay
IPC: B01J20/34
Filed: 1937-04-14
Abstract: <PICT:0482549/III/1> Spent refining clays used in the refining of oils, fats and similar substances, are regenerated by treating with a non-acidic organic solvent in the presence of a vaporizable basic substance, and after removing the solvent, treating the clay with steam.  The solvent and basic substance used do not form polymers under the treatment conditions, and preferably boil below 200 DEG C., whereby they are completely vaporized at the final steaming stage.  The extraction may be effected by a single substance consisting of a vaporizable organic base.  Suitable solvents are; primary and secondary alcohols, ketones, ethers, acetals, mono-nitro-derivatives of hydrocarbons, chlorinated hydrocarbons, or hydrocarbons.  Examples; isopropyl, butyl, amyl, benzyl, or cyclohexyl alcohols, furfurol, acetaldehyde, acetone, methylpropyl ketone, diacetone, isopropylethyl ether, ethylene glycol ethers, nitro methane, naphtha, gasoline, xylene, chloroform, or carbon tetrachloride.  Ketones of 4 to 7 carbon atoms and chloroform are preferred.  Mixtures of polar and non-polar solvents may be used especially mixtures of solvents of high and low dipole moment, for example, mixtures of methyl alcohol or acetone and aromatic hydrocarbons or chlorinated hydrocarbons.  Low dipole moment is defined as from 0 to 1.10-18 e.s.u.  Vaporizable basic substances are; ammonia, amines, imines, alkanolamines, or hydrazines. Examples; ethyl-, or isopropylamine, ethylene diamine, aniline, mono-ethanolamine, methyl hydrazine, pyridine, quinoline, pyrrole, piperidine, piperazine or petroleum bases.  Spent clay, such as bauxite or silica gel, containing oil enters a filter 2 through a line 1. Liquid is drawn off into a still 4, and the clay is first washed with naphtha admitted from a tank 5, then treated with steam and dried by a gas such as air or flue gas.  The clay is then transferred to an extractor 13 where it is agitated with a non-acidic solvent admitted from a tank 28, together with the basic substance which may be admitted to the tank 28 or added directly through a line 33.  This step may be effected under ordinary or super atmospheric pressure.  After washing, the liquid is withdrawn through a line 14 into a tank 15 from which it passes to a still 24.  Vapours are condensed at 17 and the condensate is pumped from a separator 19 to the tank 28.  The extracted clay is freed from solvent by steam, the vapours being condensed and then freed from water in the separator 19.  Steaming is continued, preferably under reduced pressure, until the issuing vapours are free from the basic substance.  The steam may contain carbon dioxide, sulphur dioxide, sulphuretted hydrogen, or hydrochloric acid.
Patent GB-273849-A (GB)
Title: An improved screen for optical projection purposes
IPC: F01B1/06
Filed: 1926-04-22
Abstract: 273,849. Padain, H. April 22, 1926. Translucent sheets. - A translucent projection screen comprises a base dressed with a soluble alkaline silicate. The base may consist of parchment or paper, of linen, cotton, or other fine fabric, or of other fibrous or cellulose products. It may be dressed with sodium silicate, first in a solution consisting of 25 per cent silicate and 75 per cent water, then in a solution consisting of 50 per cent of each, and finally in a solution consisting of 75 per cent silicate and 25 per cent water. A yellow or other dye may be added to the solution, and sugar, glucose, treacle, cellulose, glycerine, molasses, casein, or castor oil may also be added, or may be applied to the screen as a coating, to increase suppleness and serve as a protection. Crude india rubber may he incorporated in the solution to impart a rough surface to the screen.
Patent GB-1383735-A (GB)
Title: Protected electrical components and methods of forming them
IPC: B29C48/03
Filed: 1973-02-28
Abstract: 1383735 Encapsulating by extrusion VARO SEMICONDUCTOR Inc 28 Feb 1973 [2 March 1972] 10663/73 Heading B5A [Also in Division H1] A method of encapsulating a plurality of serially connected electronic elements comprises passing the joined elements through an extruding die 20 to produce an encapsulation of uniform external surface. The die includes an entrance 22a and exit 22c, and a mid-portion 22b which receives the encapsulating material from a reservoir 21. The encapsulating material may be a soft rubber or plastics material.
Patent GB-1260404-A (GB)
Title: Improvements in or relating to microwave transmission lines
Inventor: BASS JOHN CHARLES
IPC: H01P3/08
Filed: 1969-02-28
Abstract: 1,260,404. Microstrip transmission lines. PLESSEY CO. Ltd. 20 Feb., 1970 [28 Feb., 1969], No. 10746/69. Heading H1W. A microstrip line comprises a high resistivity (greater than 10<SP>6</SP> ohm cm.) gallium arsenide (GaAs) dielectric material sandwiched between a conductive strip and a relatively low resistance (about 0À002 ohm cm.) GaAs conductive plane. The low resistivity conductive plane is produced by doping GaAs with S, Se, Te, Si or Sn, and the high resistivity GaAs layer is epitaxially grown on to the conductive layer. The conductive strip may be formed by a conventional photolithographic technique or by epitaxial deposition of low resistivity GaAs, e.g. by deposition through an etched mask of SiO 2  deposited on the layer. Microwave circuit devices communicating with the transmission line may be simultaneously formed by epitaxial growth on the surface of the GaAs dielectric layer.
Patent GB-422756-A (GB)
Title: Improvements in or relating to devices for cleaning crank cases, gear boxes and the like
IPC: B60R17/00
Filed: 1934-04-10
Abstract: 422,756. Cleaning crank cases and other oil-containing parts. DELANO, J. K., 176, Pennyfield Avenue, New York, U.S.A. April 10, 1934, No. 10800. [Class 116] A portable device for cleaning the interior parts of crank cases, gear boxes, or similar casings comprises a chamber 25 in which air is heated by an element 35 and passed through an adjustable nozzle member 31, 32 to the casing from which the waste or used oil passes through a funnel 23 to an annular chamber surrounding the heating chamber and leading to a pan 10 mounted in the garage pit. The heating element 35 is mounted in an insulating base 33 which carries a thermostatic strip 46 controlling the rate of admission of the air to the heating chamber, in which it is guided in a spiral path to the opening 27 at the top of the chamber.
Patent GB-1345123-A (GB)
Title: Thermosetting vinyl ester emulsion copolymers
IPC: C08F214/06
Filed: 1972-03-08
Abstract: 1345123 N-Methylol allyl carbamate CHAS S TANNER CO 8 March 1972 [11 May 1971] 10833/72 Heading C2C [Also in Division C3] In Example 4, N-methylol allyl carbamate, is prepared by reacting allyl carbamate with paraformaldehyde (i.e. formaldehyde) in aqueous caustic solution.
Patent GB-328415-A (GB)
Title: Improvements in or relating to sea boots
IPC: A43B3/02
Filed: 1929-04-08
Abstract: 328,415. Howarth, A. L. April 8, 1929. Top boots; with attachments for special purposes. -Solid bodies of buoyant material, such as sponge rubber with an impervious outer skin, are provided in or on sea-boots to balance the weight when submerged. T h e material may be integral with or nemovablv attached to the boot and may take the form of a sponge rubber insole 1 supplemented, if necessary, by bands 2, 3 of similar material around the ankle and top of the leg, either inside or outside the boot. The leg of the boot may be wholly or partly made of the buoyant material.
Patent GB-583311-A (GB)
Title: Improvements in or relating to wear testing machines
IPC: G01N3/56
Filed: 1944-06-06
Abstract: 583,311. Testing wear of gauges. WOODWORTH CO., N. A. June 6, 1944, No. 10865. Convention date, Dec. 29, 1943. [Class 106 (ii)] A machine for testing wear of a threaded gauge member comprises a wear member threaded to engage the gauge and power mechanism to produce relative rotation which is automatically reversed at regular intervals. The plug gauge 39 to be tested is mounted in the tubular end of a shaft 35 connected ,by a universal joint 34 to a shaft 33 fitted into a socket in the end of a shaft 23 to the upper end of which is splined a pulley 24 driven from a' motor by belt gearing. The shaft 23 is mounted for rotational movement in a sleeve 19 slidably arranged in a bifurcated tube 15. The wear member 55 is arranged in a cooling tank 49 and has limited freedom of movement in a lateral direction, but is prevented from rotating by a pin 57 engaging fingers 59. A rod 65 clamped to the sleeve 19 carries collars 63., 64 engaging a roller 62 on the operating arm 61 of a reversing switch , 60 controlling the direction of rotation of the motor. Loaded frictional elements 76, 77 press against the wall of the sleeve 19 to produce resistance to the relative movement of the gauge and wear members.
Patent GB-980755-A (GB)
Title: Production of n-substituted amides of ª‡,ª‰-olefinically unsaturated carboxylic acids
Inventor: BRANDEIS JOHANN
IPC: C07C233/16
Filed: 1962-03-22
Abstract: The invention comprises N-substituted amides of a ,b -olefinically unsaturated carboxylic acids of the general formula <FORM:0980755/C2/1> wherein R is alkyl, alkenyl, aryl, aralkyl, or aralkenyl, and R1 is hydrogen or alkyl.  These compounds may be obtained by reacting the corresponding alcoholic compound in which R is H with an alkylating agent in aqueous alkali solution in equimolar amounts at 0-40 DEG  C., or with a halogenating agent in the presence of a N-disubstituted carboxylic acid amide at 10-150 DEG  C. and then treating the halogenated compound with an alcohol or phenol in excess at 10-200 DEG  C.  Alkylating agents specified are dialkyl sulphates, halo-alkyls, and p-toluene sulphonic acid esters.  The initial alcoholic compound may be a N-(a -hydroxy-b ,b ,b -trichloroethyl)-amide of acrylic or methacrylic acid. The amides of the invention may also be prepared by reacting a mixture of chloral, an amide of an a ,b -unsaturated carboxylic acid, and an alkylating agent at 40-110 DEG  C., preferably in presence of an acid catalyst such as sulphuric acid and, after condensation of the amide with the chloral has occurred, cooling the reaction mixture to 10-40 DEG  C. and making the solution alkaline so as to cause the alkylation to occur. When the amides of the invention are obtained by way of the corresponding halogen compounds, the halogenating agent may be thionyl chloride, sulphuryl chloride, phosgene, or a corresponding brominating agent.  N-di-methyl formamide, N-methyl pyrrolidone, or tetramethyl urea may be used as catalyst for the halogenation. A polymerization-inhibitor such as 2,6-ditertiarybutyl cresol may be present during the reaction.  In examples, the production of N-(a -methoxy-b ,b ,b -trichloroethyl)-acrylamide and the corresponding methacrylamide and a -n-butoxy, and a -allyloxy compounds is described.  Other examples describe the production of N-(a -benzoyloxy-b ,b ,b ,-trichloroethyl)-methacrylamide and the corresponding a -isopropyloxy, a -tert.-butyloxy, a -cyclohexyloxy, a -phenoxy, a -o - and p-chlorophenoxy, and a  - o ,p - dichloro - phenoxy compounds.
Patent GB-527645-A (GB)
Title: Improvements in or relating to the production of substituted acetic acids
IPC: C07C59/06
Filed: 1939-04-11
Abstract: 527,645. Substituted acetic acids. DU PONT DE NEMOURS & CO., E. I. April 11, 1939, No. 11025. Convention date, April 9, 1938. [Class 2 (iii)] Acyloxyacetic acids are obtained by subjecting formaldehyde, or a polymer thereof, and an organic acid, ester or anhydride, or an addition compound of formaldehyde with an organic acid, to the action of carbon monoxide, preferably at raised temperature and pressure, the reactants being anhydrous or containing only such a limited amount of water that the product is not substantially hydrolysed to hydroxyacetic acid. An acidic catalyst, i.e., a substance capable of giving by itself a pH of less than 6 in aqueous solution, e.g., hydrochloric, sulphuric or phosphoric acid, or acid sodium phosphate or boron trifluoride, is preferably added. When the initial organic acid is a liquid it may be employed in excess as a solvent medium, or other solvents, such as. organic esters or ethers, may be employed. Specified acids are acetic, propionic, isobutyric, glycollic, benzoic, acrylic, methacrylic, and succinic, the corresponding acyloxy compounds being obtained. As examples of addition products of formaldehyde and the organic acid, or of identical compounds obtained by other means, are specified methylene diacetate and dipropionate, half esters of methylene glycol, and mono- and di-acyloxy substituted ethers ; these decompose under the conditions of the reaction to give formaldehyde and the organic acid. The preparation of acetoxy-, propionoxy- and isobutyroxy-acetic acids is described in examples.
Patent GB-373351-A (GB)
Title: Improvements in and relating to mine arches
IPC: E21D11/18
Filed: 1931-04-14
Abstract: 373,351. Mine supports. KNAGGS, C. R., Hill Crest, The Avenue, Marton-in- Cleveland, Yorkshire. April 14, 1931, No. 11045. [Class 20 (ii).] The feet of mine arches a are supported on substances such as debris, sand, bitumen, or other fluid or semi-fluid material which flows under pressure, contained within a receptacle b. The end of the mine arch which may be of section-metal may rest directly on the material in the receptacle or on a sole-plate c, which may fit or be loose in the receptacle, and apertures may be provided in the receptacle to allow of the escape of material under pressure.
Patent GB-831857-A (GB)
Title: Improvements in or relating to egg cartons of the molded pulp type
IPC: B65D85/32
Filed: 1958-04-08
Abstract: 831,857. Egg cartons. DIAMOND GARDNER CORPORATION. April 8, 1958 [April 23, 1957], No. 11092/58. Class 18. A moulded pulp egg carton 10 with a bottom section 12 containing cells 18, a hinged cover 14 and a hinged flap 21 is provided with reinforcing ribs 28, 30 and 32 on the end web portion 26. These serve to reinforce the end flanges 22 at the point where they are liable to suffer damage in handling.
Patent GB-700320-A (GB)
Title: Automatic weir arrangement for the tail race of a hydraulic reaction turbine
Inventor: SEEWER PAUL WERNER
IPC: E02B13/02
Filed: 1951-05-11
Abstract: 700,320. Weir for the tailrace of a hydraulic turbine. ENGLISH ELECTRIC CO., Ltd. April 25, 1952 [May 11, 1951], No. 11112/51. Class 68(2) The raising and lowering of a weir arrangement for the tailrace of a hydraulic reaction turbine is automatically controlled by a device responsive to the water level of the tailrace. A screen 5 pivoted on a knuckle joint 6 on the bottom of tailrace 2 is connected at its ends by rods 7 to the downstream ends of balance beams 3 which are mounted on piers 1 flanking the tailrace 2. The balancing weight of counterpoises 8, linked to the upstream ends of the beams 3, varies according to their submergence in the water, the counterpoises losing much of their weight due to buoyancy when the water level rises so that the screen 5 and the water level drops, and on becoming less submerged, as the water level drops, overbalancing the screen 5 to raise it so that the water in the tailrace is dammed up to a minimum level L. The screen can be operated by fluid pressure, servo-motors, or electric motors, which are controlled by the tailrace water level, or the screen can be controlled remotely.
Patent GB-1181393-A (GB)
Title: Thermochemical Scarfing Process
IPC: C23G5/00
Filed: 1967-03-09
Abstract: 1,181,393. Flame desurfacing. UNION CARBIDE CORP. 9 March, 1967 [10 March, 1966], No. 11112/67. Heading B3V. In a thermochemical scarfing process the molten slag is removed from the surface of the workpiece W by a main slag-breaking stream 10 of fluid directed transversely across the workpiece and a parallel supplemental stream 16 spaced from the workpiece surface. The fluid is preferably water and the streams comprise one or more main streams 10 and one or more supplementary streams 16 which are arranged above the main stream or streams, Fig. 2 (not shown). In another embodiment, Fig. 3 (not shown), a plurality of streams (30) are arranged to form a curved pocket facing the reaction zone. The slag is discharged into a shoot 14.
Patent GB-277251-A (GB)
Title: Improvements in or relating to gas-fired annealing furnaces
IPC: C21D9/00
Filed: 1927-04-26
Abstract: 277,251. Dowson & Mason Gas Plant Co., Ltd., an( Paton, J. April 26, 1927. Annealing-furnaces.-A gasfired annealing-furnace or soaking-pit using air preheated in a cavity wall comprises an end wall with air preheating passes 8, 9. 10 delivering into a longitudinal air passage 19 with ports 20 arranged above gas ports 29 supplied, through a passage 28, from a main gas flue 24 running parallel with the air passage 19. In the opposite longitudinal wall of the chamber is the waste-gas flue 33 with damper-controlled ports 31. In the case of a battery of soaking-pits, the division walls and one end wall form independent air-heating walls each with its own damper and each communicating with its own air passage 19 and ports 20 and each pit has its own gas passage 28 and gas valve, while the main gas flue 24 and wastegas flue 33 are common to the battery.