baber/WOPTO huggingface dataset:
Patent GB-386490-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1932-04-16
Abstract: 386,490. Two-stroke engines. SOC. ANON. MOTORES HILL, 542, Rue Fermin Galan, Matar¾, and HILL, J., 27, Rue Isla de Cuba, Sitges, both in Barcelona, Spain. April 16, 1932, No. 10986. [Classes 7 (ii), 7 (iii), and 7 (vi).] Valves.-In a two-stroke engine, the admission of mixture through a port 5 to the lower end of the cylinder 4 is controlled by a segmental plate e valve 8 suspended at its upper end from a flange 7 on the piston. The plate also works over the exhaust port 6. Heating charge.- The piston is formed with holes 13, 14, 15 through which the charge has access to a chamber 12 in the piston, and becomes heated.
Patent GB-288977-A (GB)
Title: Process for the manufacture of metal sulphates from sulphides and its application to gas-purification
IPC: C10K1/12
Filed: 1928-04-13
Abstract: 288,977. I. G. Farbenindustrie Akt.- Ges. April 16 1927, [Convention date]. Materials for purifying.-Metal sulphates in aqueous ammoniacal solution are used in purifying gas, and precipitated sulphide may be re-converted into sulphate. Specifications 100,488, and 101,978, [Class 1 (iii), Oxides &c., Metallic], are referred to.
Patent GB-262647-A (GB)
Title: Improvements in or relating to blocks for building purposes
IPC: E04B2/14
Filed: 1926-04-26
Abstract: 262,647. Withers, J. S., (Lamore Tile Machine Co.). April 26, 1926. Building blocks, special shapes of.-A building block is provided with one or more projections 12 on one face and one or more recesses 13 on the opposite face, and with raised portions 14 about the edges of each of such faces to form relieved surfaces of shallow depth entirely surrounding the recess and projection or each recess and projection. The engagement of a recess by a projection squeezes binding material from the recess into the space formed by the relieved surfaces.
Patent GB-549474-A (GB)
Title: Improved combined envelope and letter sheet
IPC: B42D15/08
Filed: 1941-08-29
Abstract: 549,474. Envelopes &c. McKINNEY, B. H. Aug. 29, 1941, No. 11043. [Class 146 (ii)] A combined letter-sheet and envelope is made from a rectangular blank having a section cut out from one corner, so as to form a closing flap or panel A, Fig. 1, which is perforated along the line 9 and has a gummed edge 12. The sheet is folded along the line 7 and then transversely along the lines 8, 9, after which the flap A is sealed. The folded sections may be secured together by a separate gummed strip F, Fig. 4, before the flap A is folded down. The sheets may be formed into pads after partial folding, as shown in Fig. 5. The blank may have an additional part joined, for example, along the edge 15.
Patent GB-1148348-A (GB)
Title: Improvements in material feed regulator
IPC: B65D90/60
Filed: 1967-03-09
Abstract: 1,148,348. Feeding pulverant material from hoppers to pneumatic conveyers. FULLER CO. 9 March, 1967 [22 July, 1966], No. 11051/67. Headings B8A and B8S. A valve for controlling the gravitational flow of granular material from a hopper 1 to a conveyer duct 3, which is provided with a fluidizing bed 7, comprises a hollow valve member 10 of generally cylindrical shape having end walls and being rotatably mounted in a casing 2. A portion of the valve member 10 is cut away to provide a material exit corresponding with the outlet 6 in the casing 2. An opening is also provided in the valve member 10 to communicate with the material inlet aperture 5 in the casing when the material exit is in communication with the outlet 6. The opening is formed with edges diverging towards the material exit, Figs. 1, 2 (not shown), whereby the flow of material from the hopper may be restricted. The valve member 10 is provided with a stud which extends through a slot in the side of the casing 2 and which is provided with a lock nut whereby the valve member may be secured in a selected position.
Patent GB-485704-A (GB)
Title: Improvements in and relating to rudders for manoevring ships
IPC: B63H25/38
Filed: 1937-04-19
Abstract: 485,704. Rudders for ships. SMIRNOV, A. V. April 19, 1937, No. 11133. Convention date, June 2, 1936. [Class 114] A ship's rudder. is constituted by a main part secured to the rudder shaft and carrying a number of vanes controllably and rotatably mounted on both the front and aft ends thereof, the vanes at the fore and aft ends respectively being perpendicular to one another in all positions. A main body portion 1 is mounted in the normal manner, but carries a number of forward vanes 5 and aft vanes 4 mounted in pairs upon common axles 3. The axles 3 are adapted to be geared in common so that the aft vanes 4 and the front vanes 5 can be rotated in unison. The vanes are maintained vertical when the ship is going ahead and for steering on the reverse running the vanes are turned so that the vanes 5 are vertical and 4 are horizontal. In an alternative construction the whole rudder is enclosed in a frame so that the spindles 3 may be produced and supported also in the outer framework.
Patent GB-838395-A (GB)
Title: Process and apparatus for producing a slurry of catalyst in hydrocarbon diluent for chemical reactions
IPC: B01J35/12
Filed: 1957-04-05
Abstract: 838,395. Electric tests. PHILLIPS PETROLEUM CO. April 5, 1957 [April 27, 1956], No. 11152/57. Class 37. [Also in Group XXXV] The concentration of catalyst in a slurry fed to a reaction vessel 12 is sensed by a capacitance probe 19 connected in a bridge circuit and acting through control units 15 and 16 or 22 to vary the feed of catalyst slurry from vessel 1 or 21 to a conduit 10 supplied with additional diluent, so that the catalyst concentration is maintained constant. Switch 15a, and valves 2 and 20 enable a continuous supply of slurry to be maintained by successive switching between vessels 1 and 21, the vessel out of use being then supplied with diluent via valve 3, catalyst added, stirrer 5 started and inert gas supplied under pressure via valve 8. The control circuit (Fig. 3) includes an A.C. bridge 28 supplied from an oscillator 44, an amplifier including valves 57 and 67 for the out-of-balance signal with negative feed-back allowing phase adjustment by capacitor 75, and phase-sensitive triodes 90 and 92 supplied with the amplified signal in antiphase on their grids, and having the oscillator signal supplied to their cathodes. The voltage output at 113, 114 is suitable for controllers such as 16 and 22, and is recorded by a recording voltmeter 107. Mechanical details of the probe 19 and its mounting means are illustrated. The arrangement is particularly adapted for use in the polymerization of 1-olefins by the use of a chromium oxide catalyst as described in Specifications 790,194 and 804,641, or for control of nickel or other metallic hydrogenation catalyst concentration. Specification 790,195 also is referred to.
Patent GB-1006385-A (GB)
Title: Isopropanols and the manufacture thereof
IPC: C07D213/30
Filed: 1964-03-17
Abstract: The invention comprises compounds of the general formula <FORM:1006385/C2/1> wherein the symbol S represents substitution comprising a halogen atom or an alkyl, alkoxy or alkyl mercapto group or three alkoxy groups and the broken line denotes that such substitution is optional, and acid addition salts thereof; and the preparation thereof by reacting a (pyridyl-(4)-methyl)-alkali metal or -magnesium halide derivative with a compound of the formula <FORM:1006385/C2/2> wherein R represents a halogen atom or an alkoxy, benzyloxy or phenoxy group and S and the broken line have the significance given above and, if desired, converting the reaction product into an acid addition salt.  [Pyridyl - (4) - methyl] - lithium is prepared by the interaction of pyridyl-(4)-methane and phenyl lithium in an ether benzene solution under an atmosphere of dry nitrogen.  [Pyridyl - (4) - methyl] - magnesium bromide is prepared by the reaction of pyridyl-(4)-methane and ethyl magnesium bromide in tetrahydro-furan solution under reflux conditions. Pharmaceutical compositions for use as anti-parkinson agents when administered enterally or parenterally comprising the compound of the first general formula above and an inert diluent or exipient. The composition may be in the form of tablets, dragees, suppositories, capsules, solutions, emulsions or suspensions.
Patent GB-546868-A (GB)
Title: Perforating device for printing presses
IPC: B41G7/00
Filed: 1941-09-02
Abstract: 546,868. Perforating apparatus. EKLUND, J. E. Sept. 2, 1941, No. 11213. [Class 100 (i)] A printing-machine is constructed with means for perforating printed sheets so that a sequence of a certain number of perforated and a certain number of unperforated sheets are produced by mounting a perforating rule 6 in the printing-plate 3 and controlling the position of the rule 6 by means of a cam shaft 1 formed with a series of raised parts 2 and also depressions. At each operation of the press the shaft 1 is rotated by a ratchet 7 and pawl 9 carried by a member 8 which is normally raised by springs 10 above type height and is depressed at each printing operation. A spring-pressed ball engages recesses in the shaft 1 to lock it in adjusted position, and the relation of the raised parts 2 to the number of ratchet teeth 7 determines the sequence of perforated and unperforated sheets.
Patent GB-294592-A (GB)
Title: Improvements in or relating to the braking of the undercarriage or landing wheels of aeroplanes and like aircraft
IPC: B64C25/44
Filed: 1927-04-27
Abstract: 294,592. MacPherson, M. C. April 27, 1927. Fluid-pressure. - In an aeroplane or like aircraft having fluid-pressure brakes which can be applied to the landing wheels, the fluid-pressure is derived from pumping action due to the rotation of the landing wheels or to the movement of the tail skid. A plunger 11 is actuated by a cam 13 on the wheel axle to deliver fluid through a non-return valve 15 to a brake cvlinder 16, the pressure being controlled by a valve 21, under the pilot's control, which bye-passes more or less of the fluid to a reservoir 20. The pump and reservoir unit is mounted within a brake drum upon the coverplate and the braking pressure is applied through links 39 to brake blocks acting on the drum. A pipe 54 connects the cylinder 16 to any other cylinders in use. A relief valve 24 discharging through a passage 24<a> into the reservoir limits the braking pressure.
Patent GB-397802-A (GB)
Title: A new or improved device for filling the containers of capping and like machines with a supply of discs
IPC: B67B1/10
Filed: 1933-04-18
Abstract: 397,802. Filling disc magazines in bottle-capping machines. DANIELS, F. L. and DANIELS, Ltd., T. H. & J., Lightpill Iron Works, Stroud, Gloucestershire. April 18, 1933, No. 11260. [Class 125 (ii).] A filling device for disc magazines comprises a tubular member a having a nozzle h which fits the charging end d<1> of the machine, and a plunger c which expels a carton or package of discs into the machine when moved towards the machine. Either the plunger or the cylinder may be moved to expel the discs. The cylinder is so made that the discs can be inserted laterally therein, and may comprise a channel sectioned device with resilient edges or lips and endwise supporting blocks. The cylinder may be mounted on horizontal supports.
Patent GB-514825-A (GB)
Title: Improvements in or relating to protective devices in connection with high voltage electrical discharge apparatus
IPC: H04N3/20
Filed: 1938-04-13
Abstract: 514,825. Cathode-ray tubes; television receivers; protective arrangements. WHITE, E. L. C., and BLUMLEIN, A. D. April 13, 1938. No. 11280. [Classes 39(i) and 40(iii)] [Also in Group XXXV] In high voltage electric discharge apparatus such as cathode ray tubes used for television or oscillography, protection from the effects of high current surges due to flash overs or short circuits is effected by (i) an inductance 7 in the lead from the source to the 50,000 volt anode 3; (ii) inductances 13, 14, 19, 20 in the supply leads to the deflection coils 5, only one set being shown; (iii) an inductance 12 in the earthing lead from the electrostatic screen 6 between the anode 3 and the coils 5 and (iv) condensers 8, 9 in the earth connections of the anode 3 and the first 2,000 volt anode 4. The inductances 12, 13, 14, 19, 20 are closely coupled by winding as a four-wired screened cable, the inductance 12 acting as the screening winding; or the inductance 12 could be a wound copper strip with four wires wound over the helix. The condensers 8, 9 mitigate the effect of a flash over from one electrode.to the other; the impedances are effective on a short circuit in the supply source of the electrode 3.
Patent GB-527531-A (GB)
Title: Improved means for securing a motor vehicle bonnet in the open position
IPC: E05C17/30
Filed: 1939-04-14
Abstract: 527,531. Stays for hinged articles. HUMBER, Ltd., and BOWDEN, B. G. April 14, 1939, No. 11315. [Class 65 (i)] A stay for a car bonnet comprises two telescopic parts c, d, adapted to be locked in extended position by a spring catch i pivoted in a slot in d and engaging a slot j in c.
Patent GB-931440-A (GB)
Title: Polymerisation of 1, 3-butadiene
IPC: C08F136/04
Filed: 1962-03-26
Abstract: Polymers of 1,3-butadiene of high cis 1,4-content, are obtained by polymerizing butadiene with a catalyst which is formed on mixing (a) an organolead compound of the formula R4Pb where R is an alkyl, cycloalkyl, aryl, alkaryl or aralkyl radical with (b) titanium tetrachloride and (c) titanium tetraiodide.  The mol. ratio of (a) to (b) and (c) is preferably in the range of 1:1 to 2:1, and the mol. ratio of (b) to (c) is generally 0,5:1 to 5:1. The organolead compound may be tetramethyl, tetraethyl, tetra-n-propyl, tetra-tert.-butyl, tetra-n-hexyl, tetradecyl, tetra(tridecyl), tetraeicosyl, tetracyclohexyl, tetra4-methylcyclohexyl, tetrabenzyl, tetra(4-phenyl-n-butyl), tetraphenyl, tetra-1-naphthyl, tetra-4-tolyl, tetra(2,4-diethylphenyl), tetra(3,5-di-n-heptylphenyl), dimethyldiethyl, dimethyldiphenyl, methylethyldiphenyl, or tri-n-butylphenyl lead.  The catalyst may be preformed in a separate catalyst chamber, or the catalyst may be formed in situ. The polymerization is generally effected in a hydrocarbon diluent, and the polymer recovered by conventional techniques.
Patent GB-1062350-A (GB)
Title: Method and apparatus for threshing leaves, e.g. tobacco leaves
Inventor: LEWIS JAMES GABRIEL
IPC: A24B5/10
Filed: 1965-03-18
Abstract: 1,062,350. Stripping tobacco. IMPERIAL TOBACCO CO (OF GREAT BRITAIN & IRELAND) Ltd. Feb. 15, 1966 [March 18, 1965], No. 11455/65. Heading A2C. Tobacco leaves to be threshed are pneumatically conveyed vertically up a duct 5 so that gravity assists in orientating the leaves with the stems parallel to the direction of movement and with the tips of the leaves foremost. The leaves pass through a throat 9 to a thresher comprising a drum 1 and teeth 2 in a housing 3 and rotating in the direction of the arrow A. The threshed leaves pass through a restricted opening 10, which widens into a duct 6, into an outlet duct 7. The thresher has bars 4 through which some of the threshed leaves pass into a passageway 8 joined by a pipe 11 to the duct 7. The pipe 11 may have a valve 12 installed therein to overcome the effects of pressure differences in the passageway 8 and the duct 7.
Patent GB-761101-A (GB)
Title: Improvements in and relating to the manufacture of soles and heels of caoutchouc or synthetic material
IPC: B26F1/44
Filed: 1954-04-21
Abstract: 761,101. Moulding soles and heels. VORWERK, W. and VORWERK, M. [trading as VORWERK & SON]. April 21, 1954 [Oct. 29, 1953], No. 11460/54. Class 87(2). [Also in Group VII] Sheets of material a, Fig. 1, such as porous or honeycombed rubber, from which soles and heels may be stamped have one or both surfaces divided up, e.g. by a raised or depressed edging, into areas representing individual soles or heels of the same or different sizes, so that tread patterns e may be readily altered while giving the soles or heels the appearance of individual production. This marking may be done in a mould comprising base and cover plates b, d, Fig. 6, with a distance frame c separating them, by exchangeably arranging on or in one of the plates profile plates f in one or several parts, engraved in accordance with individual sole or heel tread patterns e and profile shaped. Where both faces of the sheets are patterned, they may be split through either before or after the individual soles and heels are stamped from them, so that both rights and lefts for pairs of boots, &c. are formed simultaneously.
Patent GB-528186-A (GB)
Title: Improvements in or relating to electric radiators
IPC: F24C7/00
Filed: 1939-04-15
Abstract: 528,186. Ornamental electric radiators. BERRY, G. J., and PAINTON, C. A. April 15, 1939, No. 11540. [Class 126] In an electric radiator having one or more screens mounted in or providing walls of a recess 2 adapted to receive an ornamental article such as a bowl of flowers 3, one or more spotlights 5 throw concentrated beams of light on to the article and another lamp 7, comprising for example' a rotating cylinder 4 having differently coloured longitudinal strips such as described in Specification 504,761, in addition throws a changing coloured. light upon the article and recess. Trough heat reflectors 9 at the bottom front of the recess may also be arranged to receive some light from the lamp 7. A translucent screen or gauze sheet (not shown) deflects heat arising from the heating elements away from the ornament. Additional heating elements may also be arranged at the sides and top of the surround 1, and all may be replaceable or screened by an ornamental panel or fret. As shown the lamps are mounted at the top of the recess in a chamber closed by a hinged or removable panel 10 and having a glazed floor 8 but may be mounted in a common base sliding within the chamber or mounted in any other position. With small lamp bulbs, a step-down transformer is incorporated in the radiator.
Patent GB-854999-A (GB)
Title: A process for the production of itaconic anhydride
IPC: C07C51/56
Filed: 1959-04-06
Abstract: Itaconic anhydride is prepared by heating itaconic acid in the presence of from about 0.4% to about 4% by weight, based on itaconic acid, of a sulphuric acid or an alkali metal monohydrogen sulphate catalyst, at a temperature of from 165 DEG C. to about 190 DEG C., preferably from 165 DEG C. to about 180 DEG C.  The preferred reaction time is about 10-60 minutes.  The product may be recovered by vacuum distillation, preferably as it is formed. In order to avoid the condensation of water formed in the reaction during distillation with consequential hydrolysis of the anhydride, a heated condenser may be used, e.g. at about 70-100 DEG C.
Patent GB-329718-A (GB)
IPC: C08B3/06
Filed: 1929-01-22
Abstract: 329,718. U. S. Industrial Alcohol Co. Feb. 24, 1928, [Convention date]. Divided on 306,531. Cellulose acetate.-In the manufacture of cellulose acetate by acetylating cellulosic materials in presence of liquid sulphur dioxide with or without a catalyst, acetone-soluble cellulose acetates are obtained by hydrolysing the cellulose acetate in presence of the liquid sulphur dioxide. The hydrolysis may be effected by introducing sufficient water to break down the excess of acetic anhydride and leave a small excess of water, or by the addition of alcohol or a mixture of alcohol and water. The hydration is preferably carried out in presence of the sulphuric acid remaining from the acetylation operation, but a suitable salt, for example an alkali acetate, may be introduced along with the hydrating medium, if it is desired to moderate the influence of the sulphuric acid. Preferably sufficient sodium acetate is added at the end of the hydrolysing treatment to neutralize all the sulphuric acid present. On the other hand, an additional small quantity of sulphuric acid may be added along with the hydrating medium, if desired, in order to accelerate the reaction. Acetic acid may be added in order to prevent partial precipitation in the reaction chamber and if desired an additional quantity of liquid sulphur dioxide may be added just before or together with the hydrating medium. The reaction mixture after the hydrolysing treatment may be discharged by the pressure of the sulphur dioxide into water or other suitable medium to give a loose, fluffy product, or it can be sprayed or splatter dried or discharged upon a foraminous collecting belt in the air or in an atmosphere of sulphur dioxide gas as described in Specification 306,531. The space in which the charge is blown out of the reaction vessel is enclosed and provided with a suitable offtake in order that the sulphur dioxide may be recovered. Other catalysts, for example zinc chloride, phosphoric acid, and dimethyl sulphate, may be employed for the hydrolysing treatment in place of sulphuric acid.
Patent GB-982594-A (GB)
Title: Improvements in internal combustion engines
IPC: F01C19/04
Filed: 1962-03-27
Abstract: 982,594. Rotary I.C. engines. H. PAPST. March 27, 1962 [March 29, 1961; Jan. 5, 1962], No. l1612/62 Heading F1F. [Also in Division F2] Sealing strips in the apexes of the rotor of a rotary internal combustion engine are made of a material with a higher modulus of electricity than cast iron, a higher melting point than chromium, a lower coefficient of thermal expansion than steel a higher thermal conductivity than steel, and greater hardness than steel at operating temperatures. Examples of such materials are tungsten, tantalum and molybdenum. The sealing strip may be formed with a groove (Fig. 3, not shown) in which is fitted a cylindrical rod, which rolls on the peripheral wall of the casing. The groove is preferably extended below the rod 25 (Fig. 4) and filled with molybdenum disulphide. The rod may also be formed with splines or helical grooves packed with molybdenum disulphide, and may consist of a tungsten wire sheathed in molybdenum. The casing of the engine may be cast iron, or else may comprise a ceramic liner 2 (Fig. 1), made for example of aluminium oxide or porcelain, surrounded by a cast-iron sheath 3, either shrunk on to the liner or cast in situ. Removal of the sealing strips may be facilitated by providing removable plugs in the casing end walls (see Fig. 2, not shown).
Patent GB-457925-A (GB)
Title: Improvements in game-practice devices
IPC: A63D13/00
Filed: 1935-06-04
Abstract: 457,925. Tennis-practising appliances. LANE, F., Seclin, Cheyne Walk, Croydon.- (Lane, G. P. ; The Cairo, Pott's Point, Sydney, Australia) June 4, 1935, No. 16117. [Class 132 (ii)] A device for projecting a tennis ball upwardly, to enable service strokes to be practised, comprises a ball-projecting lever k situated within a platform on which the player stands and urged clockwise by springs l, the lever being first rocked to stress the springs and then released to project the ball by means of a trip member w pivoted to a bar d that is slidable to the right under the control of the player's foot. For this purpose, the bar is connected through links e, e<2> to the underside of a treadle f. The initial position of the projecting-lever is controlled by a spring p acting on the lever through a rod o and adjustable in compression by a nut r. Balls are fed to the projector from a magazine s, the foremost ball being positioned on the projecting-lever by guides t. Upon the depression of the treadle to project this ball, the remaining balls are pushed back into the magazine by spring arms i operatively connected to the bar d and normally forced apart by engagement with the outer walls of the guides t.