baber/WOPTO huggingface dataset:
Patent GB-1507252-A (GB)
Title: Process for the preparation of diacetone-2-ketogulonic acid
IPC: C25B3/23
Filed: 1976-02-11
Abstract: 1507252 Diacetone - 2 - ketogulonic acid MERCK PATENT GmbH 11 Feb 1976 [13 Feb 1975] 05408/76 Heading C2C [Also in Division C7] Diacetone - 2 - ketogulonic acid is prepared by electrochemical oxidation of diacetonesorbose in an aqueous alkaline medium in the presence of at least 0À001% by weight of a tenside, referred to the total electrolyte solution.
Patent GB-391944-A (GB)
Title: Improvements in coin controlled apparatus
IPC: G07F11/68
Filed: 1932-02-24
Abstract: 391,944. Coin-freed postage stamp &c. delivery apparatus. BRECKNELL, MUNRO, & ROGERS (1928), Ltd., Pennywell Road, and DOLMAN, H. J., Rondray, Church Road, Staple Hill, both in Bristol. Feb. 24, 1932, No. 5458. [Class 27.] Testing coins; clearing-apparatus, automatic. -In a postage stamp or like delivery machine in which a coin or coins after insertion pass through a coin-testing shoot on their way to actuate a release device for a delivery mechanism which moves a stamp through a delivery slot arranged behind a movable cover, movement of the cover opens the coin-testing shoot thereby releasing any coin or other article that may be held therein. The invention is shown as applied to apparatus of known kind in which the coin 26, while being inserted, raises a weighted member 23 and then passes through a testing shoot 28, provided with a movable flap, to actuate a weighted lever 43 which allows a spiked stamp delivery drum 15 to be rotated by the return of the weighted member 23. The member 23 has a rod 21 with rack teeth 20 engaging a wheel 19 connected through a unidirectional drive with the drum 15, and the lever 43 carries two abutment ledges 45, 46 which coact with toothed wheels 16, 17 on the drum to form an escapement. The stamp 7 is fed through a slot 8 in a plate 9 to a chamber 6 closed by a hinged cover 4. When the cover is being raised, a projection 52 thereon, through levers 51, 50 and a link 49, opens the movable flap of the testing shoot 28, the projection 52 acting against a roller 55 on the lever 51 so that the shoot 28 is opened when the cover is partly raised, but is closed by a spring or weight when the cover is closed or fully raised. The movable flap is carried by a block 34 pivoted on a pin 35 and the link 49 is connected to the block 34 by a pin 48. The weighted member 23 has a projection 36 which normally holds the shoot 28 in open position but allows it to close when the member 23 is raised by inserting a coin. If desired, the projection 36 may be dispensed with.
Patent GB-384282-A (GB)
Title: Improvements in motor couplings
IPC: F16H3/44
Filed: 1931-02-21
Abstract: 384,282. Motor driving - arrangements. BONMARTINI, G. and GIANINI, C., 29, Via Sistina, Rome. Feb. 21, 1931, No. 5547. Convention date, Feb. 22, 1930. Void [Published under Sect. 91 of the Acts]. [Class 35.] A differential gear for connecting the parallel shafts M, M<1> of two motors to a single driven shaft 5 comprises a casing 6 carrying planet gears 7, 8 meshing with sun gears 1, 2 on telescoping shafts 9, 10 connected by gear pairs 11, 12 to the shafts M<1>, M respectively. Suitable detents 4, 3 'prevent the shaft 9 or the shaft 10 from turning backwards, when the corresponding motor ceases to drive leaving the other operative. The motors may be of equal or unequal powers. In the differential train, spur gearing can replace the bevel gearing shown. By using skew gearing in the pairs 11, 12, the shafts M, M<1> may be arranged, obliquely. An arrangement is described in which the shafts M, M<1> are in line projecting from opposite ends of the casing 6 which carries a bevel wheel meshing with a pinion on the single driven shaft 5, which is perpendicular to the motor shafts. By combining such trains, a larger number of motors may be caused to drive the same shaft.
Patent GB-1292718-A (GB)
Title: A salt or fertilizer provided with a coating to prevent dusting or caking
IPC: C05G3/20
Filed: 1970-02-05
Abstract: 1292718 Coated fertilizers BADISCHE ANILIN- & SODA-FABRIK AG 5 Feb 1970 [6 Feb 1969] 5573/70 Headings C1A and C1B [Also in Divisions B2 and C2] A granular or crystalline salt or fertilizer is provided with a coating to avoid dust formation and agglomeration, the coating comprising a polyethylene wax and/or polypropylene wax of mean M.W. from 500 to 10,000 and having a penetrometer number of not more than 3, and a surfactant. Specified salts/fertilizers are urea, calcium nitrate, sodium nitrate, potassium nitrate, calcium ammonium nitrate, nitrophosphates, potassium sulphate, potassium chloride and sodium chloride, and various fertilizers specified by NPK and NPKMg proportions. The surfactant may be anionic, cationic or non-ionic and examples of each type are given.
Patent GB-466679-A (GB)
Title: Improvements relating to electric clocks
IPC: G04C15/00
Filed: 1936-02-25
Abstract: 466,679. Electric clocks. PHILPOTT, S. F., and MERCER, F. Feb. 25,1936, No. 5606. [Class 139] An electric clock system consists of A.C. synchronous-motor secondary clocks a, an A.C. generator b which supplies the secondary clock motors and is driven by a D.C. motor e, a resistance h for regulating the speed of the D.C. motor, a master clock i and a control device j, k; l, m adapted to short circuit the resistance h and consisting of relatively movable parts j, k driven by one of the secondaries a (or by a synchronous motor similar to those of the secondaries) and the master clock respectively. The master may be spring or weight driven. The rotating discs j, k are of insulating material ; disc j has a contact l connected to one end of resistance h and coacting with segment m on disc k connected to the other end of resistance h. The secondaries are arranged to lose slightly when the resistance is shorted. When clocks a lag enough to cause contact l to leave segment m, the resistance h acts to speed up motor e until the clocks a again catch up the master i. An adjustable resistance o, coupled with adjustable resistance p in the field circuit of the alternator b, permits manual control of the speed of motor e.
Patent GB-341754-A (GB)
Title: Improvements in sparking plug testers for internal combustion engines
IPC: F02P17/00
Filed: 1930-02-20
Abstract: 341,754. Testing ignition. BASSETT, I., Uplands, Glyn Cory, Peterston-super-Ely, near Cardiff. Feb. 20, 1930, No. 5643. [Class 7 (iv).] A contact-member 7 is mounted adjacent to each sparking plug on a standard 1 secured either directly to a cylinder-head bolt, or to a frame attached to the bolts or cylinder heads. The mem. ber 7 is slotted to permit lengthwise movement, and is positioned between washers 9, 10 and nuts 14, 15. The upper nut bears on a sleeve 11 within which is a compression spring 12.
Patent GB-958427-A (GB)
Title: Land, water and air vehicle
IPC: B64C37/00
Filed: 1962-02-14
Abstract: 958,427. Boundary layer control. O. L. MARTIN. Feb. 14, 1962, No. 5673/62. Heading F2R. [Also in Division B7] A jet propulsion engine is located in a nacelle 32b on the upper surface of an aerofoil section vehicle, and part of its intake of air is taken from an inlet 114 controlled by a shutter 118, to remove the boundary layer from the upper surface
Patent GB-1397663-A (GB)
Title: Phenoxypropylamine derivatives and the preparation thereof
IPC: A61K31/17
Filed: 1973-02-05
Abstract: 1397663 Urea derivatives CHEMIE LINZ AG 5 Feb 1973 [28 Feb 1972] 5681/73 Heading C2C The invention comprises urea derivatives of the formula wherein X is C 1-4  alkylene; R 1  is H or C 1-6  alkyl; R 2  is H, C 1-10  alkyl, C 2-10  alkenyl, C 2-10  alkynyl, C 1-6  hydroxyalkyl, alkoxy-C 1-6  alkyl, C 1-6  aminoalkyl, aliphatic carboxylic acylamino- C 1-6  alkyl, cyano-C 1-6  alkyl, C 1-6  alkylamino- C 1-6  alkyl, di-(C 1-6  alkyl)amino-C 1-6  alkyl aryl or aralkyl; R 3  C 1-6  alkyl, C 2-6  alkenyl, C 1-6  alkoxy, C 2-6  alkenyloxy, halogen, aliphatic carboxylic acyl, benzoyl, CN, NO 2 , NH 2  or aliphatic carboxylic acylamino ; R 4  is a branched chain alkyl, a hydroxalkyl or cycloalkyl group containing up to 6 carbon atoms and n is 0 or 1 and pharmaceutically acceptable acid addition salts thereof and their preparation. The compounds are prepared by reacting compounds of the formula wherein Y is oxiranyl or -CH(OH)CH 2 -Hal, in which Hal is Cl, Br or I or mixtures of such compounds with ammonia or amines of the formula H 2 N-R 5  wherein R 5  is H or the group R 4 , and when R 5  is H reacting the resulting products with carbonyl compound of the formula O = CR 6 R 7  in which R 6  is H and R 7  is C 1-4  hydroxyalkyl or R 6  is CH 3  or CH 3 CH 2  and R 7  is C 1-4  alkyl or C 1-4  hydroxyalkyl, the sum of the number of carbon atoms in R 6  and R 7  not exceeding 5, or R 6  and R 7  taken together may form C 1-5  alkylene and reducing the resulting products. N - {4 - [(2,3 - epoxy)propoxy]benzyl}urea and N - {3 - methoxy - 4 - [(3 - chloro - 2 - hydroxypropoxy]benzyl}-urea are obtained by reacting epichlorohydrin with the sodium salt of N-[3- hydroxybenzyl]urea and N-[3-methoxy-4-hydroxybenzyl]urea respectively. Pharmaceutical compositions suitable for oral or parenteral administration, contain the above novel compounds or pharmaceutically acceptable acid addition salts thereof in admixture with excipients. The compounds possess #- receptor-blocking properties.
Patent GB-1059284-A (GB)
Title: Fluid feed device for gas-and-liquid treating tower
IPC: B01D3/20
Filed: 1964-02-11
Abstract: 1,059,284. Contacting gases with liquids. U.S. STONEWARE Inc. Feb. 11, 1964 [March 21, 1963], No. 5685/64. Heading B1R. A distributor for supplying liquid to a packed gas/liquid contact column comprises two open-topped pans 25 and 26 which are fed tangentially with liquid from a common field duct andwhich have inwardly projecting fins in their interior side walls and outlets 29 by which the liquid passes to a trough 17, the trough 17 being arranged to discharge into a series of troughs 18 from which the liquid flows into the packing in the column.
Patent GB-1325973-A (GB)
Title: Can opener
IPC: B67B7/82
Filed: 1972-02-08
Abstract: 1325973 Can openers W STEINER 8 Feb 1972 [10 Feb 1971] 5799/72 Heading B8D A can opener, comprising a cutter wheel 2 and a traction wheel 4, Fig. 1 (not shown), such as described in Specification 1,227,199, is provided with a cylindrical bar magnet 7 projecting fom a support structure and located out of contact with the cutter wheel, but adjacent the contact point of the cutter wheel with a can end, for attracting cutting chips formed on opening the can. The magnet is provided with a brass cover  layer 9. The Specification refers to prior art wherein a pair of bar magnets are provided in contact with the cutter wheel.
Patent GB-744376-A (GB)
Title: Vitamin emulsions
IPC: A61K31/59
Filed: 1953-03-02
Abstract: A stable oily vitamin emulsion suitable for intravenous injection comprises the vitamin and lecithin dispersed in water, the dispersed particles being predominantly of a diameter in the range 0,1-0,5 microns, and is prepared by admixing a solution of the vitamin in an aliphatic alcohol containing not more than 4 carbon atoms with a solution of lecithin, suitably soy bean or egg lecithin, in a volatile organic solvent, and water, emulsifying by agitation, and removing the organic solvents by evaporation under reduced pressure. Vitamins A, D, E, K1 or K1 oxide are specified, propanol and isopropanol being the preferred solvents therefor.  Lecithin solvents are chloroform, ethyl ether, petroleum ether.  The agitation (stirring) should be continued until a temperature of 43-45 DEG C. is reached, whereupon the emulsion is cooled to 5 DEG C. and evaporated at 1-5 mm. Hg. to a final temperature of 45-50 DEG C., preferably in two stages.  The emulsion may be diluted with water, and may be sterilized by autoclaving at 120 DEG C.  Volume ratios of vitamin: organic solvents: water range from 1 : 1 : 2 to 1 : 5 : 12.
Patent GB-1138656-A (GB)
Title: Clutch or brake assembly
Inventor: SMITH ROBERT ARTHUR
IPC: F16D25/04
Filed: 1966-02-10
Abstract: 1,138,656. Friction clutches. K & L STEELFOUNDERS & ENGS. Ltd. 15 Dec., 1966 [10 Feb., 1966], No. 5942/66. Headings F2C, F2E and F2F. A pneumatically engaged spring-released friction clutch, or brake, has a driven, or driving plate 1, 2, spaced between a driving, or driven, clutch body 11 and pressure plate 9 and is engaged when compressed air is supplied via a rotary seal 25, 26, ducts 23, 21 to a chamber 22 causing a rubber diaphragm 15 to axially move a plate 13 connected by bolts 12 to the pressure plate 9, the pressure plate 9 being slidably mounted on pins (10) fast in the clutch body 11 with clutch release springs 14 mounted therebetween on the bolts 13 and pins (10), (Fig. 2, not shown). The rotary seal 25 is mounted on an extension of the clutch body 11 and comprises two annular seals 26 of metal, plastics or sintered material, sealed in the housing 25 by 0-rings 28 and free to float axially in the housing 25, the outer ends of the seals 26 having chamfered reliefe which may be varied to allow the bearing pressure of the rubbing faces to be adjusted to suit service conditions. The clutch plate is formed by a number of friction-faced segments 2 formed with tongues 4 by which the segments 2 are radially retained on a centre plate 1 by a spring-loaded flange 5, the arrangement permitting easy replacement of the clutch plate friction facings.
Patent GB-179709-A (GB)
Title: Improvements in and relating to cargo-carrying vessels
IPC: B63B27/22
Filed: 1921-02-22
Abstract: 179,709. Wallace, P. Feb. 22, 1921 Directing and adjustably supporting endless belt, chain, and rope conveyers and elevators, and suspending from overhead supports.-To facilitate the discharge of bulk cargoes, each hold of a vessel is provided with a travelling elevator 14 which begins unloading from the bottom of the hold, and delivers through a shoot 12 on to a conveyer 13 which discharges over the side of the vessel. The elevator 14 is adjustably and rotatably mounted on a platform 11 which moves across the hatchway on rails on a carriage 10, the carriage itself moving longitudinally of the hatchway on rails on the coamings. In order to prevent whipping of the lower end of the elevator and to hold it against the load, a caterpillar tractor 18 is provided at the lower end, or the lower part of the elevator may be a separate unit carried on a caterpillar tractor, or may be provided with an electromagnet to grip the floor of the hold. The elevator is made in sections or telescopic for stowing when not in use. The conveyer 13 is mounted on the carriage 10 and is adjustable to vary its inclination.
Patent GB-753253-A (GB)
Title: Improvements in, or relating to, silencers for internal combustion engines
IPC: F01N1/06
Filed: 1954-03-02
Abstract: 753,253. Exhaust-silencers. CHAPMAN, C. H. March 2, 1955 [March 2, 1954], No. 6035/54. Class 7(2) One or more sinuous tubes 8 are mounted in and extend between at least two supporting plates 6, 7 to form a baffle unit accommodated within a casing 1. The tubes are provided with apertures 17 at intervals along the length of each portion thereof located between the plates, and the opposite ends of each tube are arranged to open respectively into the interior of the casing between the inlet 2 and outlet 4 and the corresponding adjacent plate. As shown in Fig. 2, the plates 6, 7 which divide the casing in chambers 11, 12, 13 have peripheral flanges 19, and are secured to the wall of the casing by bolts 22 so that the baffle unit may be removed from the casing and replaced by a different unit; also, the holes 14 through which the tubes pass have a: diameter larger than that of the tubes to form gas vents between the chambers the sum of the cross-sectional areas of the tube bores and the vents in each plate being not less than that of the inlet to the casing. The tubes are inclined to the longitudinal centre line of the casing and are formed from three equal and straight lengths of tubing connected together by U-bends 15, 16 located in the chambers 11, 13, one end of each sinuous tube opening into the inlet chamber 11 and the opposite end of each tube opening into the outlet chamber 13. Detachably secured to the ends of the casing are caps 2, 4 in the form of nozzles, the cap 2 having provision for the connection of one or more exhaust pipes 3, and the cap 4 being connected to a discharge pipe 5 or a fish-tail outlet; the later may be place the cap 4. According to the Provisional Specification, each tube is formed with a number of transverse slits, and the wall of the tube is pressed inwardly to provide semi-circular or segmental ports through which a portion of the gases flow into the space between the plates 6, 7, and the plates, which have a number of radial slits at the peripheral edges thereof to form gas vents, are provided with brackets adapted to be detachably secured to the casing.
Patent GB-971460-A (GB)
Title: Improvements in or relating to electric power supply arrangements
Inventor: MCPHERSON JOHN WEMYSS
IPC: G05F1/595
Filed: 1961-02-17
Abstract: 971,460. Automatic voltage control. GENERAL ELECTRIC CO. Ltd. Feb. 19,1962 [Feb. 17,1961], No. 6052/61. Heading G3R. A voltage stabilizing arrangement comprises output lines 1, 9, a series impedance element 7 the resistance of which is varied, in dependence upon the output voltage, by a control voltage derived from voltage divider 10, 11 and an amplifier 8 which includes a reference voltage source, and an input source 2, 4, 6 which has a comparatively stable voltage subject to occasional upward transient variations. The impedance element 7 . comprises three transistors 12, 13 and 14 having their collector and emitter electrodes connected in series as shown. Resistors 15 and 16 are connected across transistors 12 and 13 respectively, and the base of transistor 14 receives the control voltage from amplifier 8. The base of transistor 12 receives a negative bias from a battery 17 and the base of transistor 13 receives a negative bias from a battery 18. Under normal operating conditions the biasing is such that transistor 12 is heavily conducting and the stabilization is effected by transistors 13 and 14 as follows: if the input voltage increases the voltage across transistor 14 increases whereby the voltage between base and emitter of transistor 13 falls tending to cutoff transistor 13 so that the load current flows through resistor 16; if the input voltage is low transistor 13 is heavily conducting and its collector-emitter path shunts the resistor 16. The total power dissipated in the impedance 7 is thus dissipated in the transistor 14 and/or in the resistor 16. With, however, a transient increase in the input voltage the transistor 12 tends to become cut-off and the resistor 15 is added in series to the remainder of the impedance element 7. The additional power to be dissipated during the transient is thus dissipated proportionately in transistor 12 and transistor 15. Each of the transistors may be replaced by a plurality of transistors to provide the required power handling capacity. Zener diodes may replace the batteries 17 and 18. Reference has been directed by the Comptroller to Specification 872,933.
Patent GB-540888-A (GB)
Title: Improvements in keying arrangements for radio and like systems
IPC: H04L27/04
Filed: 1940-04-03
Abstract: 540,888. Wireless transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and COOPER, V. J. April 3, 1940, No. 6057. [Class 40 (v)] A keying circuit for radio and like transmitters, designed to prevent key clicks, comprises a valve V1 with a resistance-shunted capacity R2C2 in its grid-cathode circuit to which the keying-voltage is supplied through a resistance R3 by a voltage source and keying-contacts across the terminals Vin. When the key is closed negative potential is gradually applied to the grid owing to the retarding effect of the resistance R3 and condenser C2. The anode and screen-grid currents fall to zero, and the cathode resistance R1 becomes ineffective in biasing the grid. When the key is opened the condenser C2 discharges gradually through the resistance R2, the valve current gradually rises, and the cathode resistance R1 tends to bias the grid negatively, thus further delaying the rise of anode current. The screen grid G2 is supplied from the anode source by a potentiometer R5 or through a series resistance. The rounded output impulses are taken off across a resistance R4 in the anode circuit, and applied to interrupt the carrier.
Patent GB-1493434-A (GB)
Title: Introducing gas into a vessel
Inventor: GUSTAFSSON S G
IPC: H01J9/38
Filed: 1975-02-12
Abstract: 1493434 Filling discharge tubes; spark gaps TELEFONAKTIEBOLAGET L M ERICSSON 12 Feb 1975 [27 Feb 1974] 6060/75 Heading H1D To add to evacuated vessels such as surge divertor tubes as in Fig. 1 a radioactive source of ions, tritium is diffused through the ceramic walls 3 from outside at 400-500‹ C., the closure having been made previously under vacuum at 800‹ C. The diffusion apparatus of Fig. 2, comprises chamber 8 holding many surge divertors and evacuated by pump 13, heated by heater 10 controlled by regulator 20 with thermocouple 19. After degassing and closure in vacuum at 800‹ C. vessels are exposed to tritium at 30 Torr. for 5 hours at 450‹ C., the resultant activity of tritium inside the vessel being 10-100 Á Ci. mm<SP>-3</SP>. The tritium is supplied by desorption from a U powder reversible getter 15 heated by heater 18 under regulator 17, pressure being read on manometer 16. The method can be used to diffuse in H, D or He.
Patent GB-139620-A (GB)
Title: Improvements in or relating to closure-devices for containers for liquids
IPC: B65D39/08
Filed: 1919-03-11
Abstract: 139,620. Bliss, J. March 11, 1919. Stoppers, screw. - A closure for containers, of the type which has adjacent the mouth thereof a cupped or enlarged portion with which liquid comes into contact when pouring from or into the container, comprises a screw stopper A and a plate B carried thereby which, when the stopper is screwed home, lies over the well-like portion and excludes dust therefrom. The invention is particularly applicable to oil or petrol containers having a pouring-spout extending from the mouth in which the stopper fits. The plate B is preferably free to swivel on the stopper, and is prevented from being detached from the stopper by the milled bead A<1> and a rib on the stopper. A downwardly-extending flange B<1> at the edge of the plate serves to register the plate with the spout of the container and prevents dust from entering underneath the plate. In some cases, a circular plate fixed to the stopper may be used; and the flange may take the form of two projections arranged to register with opposite sides of the spout.