baber/WOPTO huggingface dataset:
Patent GB-619513-A (GB)
Title: Process for the manufacture of aqueous dispersions of polymers of substances capable of polymerisation
IPC: C08F2/22
Filed: 1946-04-04
Abstract: In the polymerization of polymerizable substances in aqueous emulsion, fresh quantities of monomer, at a concentration higher than the monomer concentration in the emulsion, are added such that the monomer concentration is kept below that equivalent to the maximum concentration of polymer at which deposition just does not occur and above half of this concentration.  The polymerization may be carried out by the batch or continuous method and is stopped before the polymer concentration reaches the deposition value.  At the beginning of the polymerization the monomer concentration may be below the lower limit provided this is exceeded at the end of the induction period.  The process is applicable to the copolymerization of two or more polymerizable substances provided all components are added to the system as monomers.  Specified substances which may be polymerized by the process are vinyl chloride, vinyl acetate, styrene, acrylic and methacrylic acid esters, acrylonitrile, vinylidene chloride, maleic acid esters, isobutene and butadiene.  In examples, vinyl chloride is polymerized in aqueous emulsion in the presence of cetyl sulphate, hydrogen peroxide and sulphuric acid. Specification 578,584 is referred to.
Patent GB-288527-A (GB)
Title: Improvement in apparatus for grinding and crushing material
IPC: B02C15/00
Filed: 1928-04-10
Abstract: 288,527. Blum, J. K. April 8, 1927, [Convention date]. Roller and roller-and-breast mills; stamps, ore and like.-In apparatus for subdividing material, a grinding ring 7 is rotated and moved toward and from anvils 8, 9 forming the bottom of the mill casing by means of an eccentric cog-wheel 12 fixed to a shaft 1 provided with a flywheel and pulley, the material such as coal being subjected to an abrasive action as well as a crushing action. The co-operating surfaces of the hammer or ring 7 and the anvil 8, 9 are, preferably, so formed as to provide a space between them of dimensions increasing in all directions from a single point where the two elements closely approach each other. The minimum clearance between the ring 7 and anvil 8, 9 may be varied by raising or lowering the main shaft 1. The housing 14 is provided with a feed inlet 15 closed by a multiple flap valve 16 which governs the rate of feed and also prevents ingress of air to the pulverizer. The discharge opening 17 is connected to the suction side of a fan 19. Air ports 21, 22 are formed in the anvil casting 9 and end plate 13 so that the action of the fan will induce a strong current of air through the holes 21 22 and thence through the crushed material. When the crushed material is not removed by an air blast the anvil casting 9 is dispensed with and the material allowed to feed out from between the hammer and anvil 8 by gravity.
Patent GB-217001-A (GB)
Title: Improvements in or relating to laminated springs and their mountings
IPC: B60G11/107
Filed: 1923-04-18
Abstract: 217,001. Nevatt, C. G. April 18, 1923. Laminar springs of the type in which the ends are curved and bear on the sole plate of the chassis &c. are so anchored as to permit of the spring bearing on the curved or cam portions so that as the load increases the points of contact approach one another and the spring becomes in effect shorter and stiffer. Both ends e of the spring b may be linked by links c to horn plates d mounted on the chassis, or, as shown, one end may be linked and the other anchored between the horn-plates and a pin d<2> to prevent lateral displacement. Specification 186,247 is referred to.
Patent GB-844439-A (GB)
Title: Novel crystalline pantothenic acid esters and a process for their production
IPC: C23C22/33
Filed: 1959-03-26
Abstract: The invention comprises crystalline pantothenic acid methyl ester and a process for the preparation thereof by reacting pantolactone with b -alanine-menthyl ester.  Alternative processes comprise (a) reacting pantolactone with ammonia and then acrylic acid menthyl ester, (b) converting pantolactone into pantothenic acid in known manner, converting the latter into any desired mixed anhydride by reacting a salt of pantothenic acid with an acyl halide and converting this anhydride into the pantothenic acid menthyl ester with menthol, (c) reacting pantolactone with a simple b -alanine ester to form the corresponding pantothenic acid ester and converting the ester, by reaction with menthol, with the liberation of the corresponding simple alcohol, into the pantothenic acid menthyl ester. Illustrative products of the invention are d-pantothenic acid-l-menthyl ester, dl-pantothenic aciddl-menthyl ester, dl-pantothenic acid-l-menthylester, d-pantothenic acid-dl-menthyl ester.  Specification 800,701 is referred to.
Patent GB-1482089-A (GB)
Title: Automatic frequency control
IPC: H03J7/06
Filed: 1975-04-11
Abstract: 1482089 Automatic frequency control; receiver tuning; transistor oscillator circuits POST OFFICE 11 April 1975 [11 March 1974] 10677/74 Headings H3A H3Q and H3T An AFC arrangement comprises means 19 to compare a reference frequency 17 with a frequency 18 to be controlled, a digital counter 21 arranged to store a count representative of the frequency difference, and means 23, 9 foradjusting the frequency to be controlled which is responsive to the stored count. As described, the AFC arrangement forms part of a quadruple conversion superheat receiver, the IF 12 after the third conversion (2À6 MHz) being mixed with a nominal 2À7 MHz signal from a local oscillator 9 to provide a nominal 100 kHz IF13 which is demodulated to produce an audio output by means of a 100 kHz reference 16. Signals 13, 16 are mixed with a 11 kHz signal 15 to give 10 kHz reference and nominal signals 17, 18 which are compared at 19 to produce an error signal 20 which controls the direction of counting of reversible counter 21. Pulses from a clock 22 are counted until comparator 19 is reset, the count being converted to analog form at 23 and used to control oscillator 9. Counter 21 may receive command signals 24 for manual/automatic searching and AFC on/off modes. Comparator 19 may comprise two identical counters connected respectively to the two frequencies, and the frequency comparison may be based on the time taken to fill the counters (Figs. 3 and 5, not shown). Oscillator 9 (Fig. 4, not shown) may include a varactor diode for adjusting its frequency.
Patent GB-1407779-A (GB)
Title: Colouring compositions
IPC: A23L1/275
Filed: 1974-03-11
Abstract: 1407779 Composition for colouring food F HOFFMANN-LA ROCHE & CO AG 11 March 1974 [12 March 1973] 10735/74 Heading A2B A liquid carotenoid colouring composition dispersible in water comprises by weight 0.1% to 2.0% of a carotenoid colouring ingredient, 0.1% to 1.0% of a preserving agent and an emulsifier consisting of, by weight based on the weight of the emulsifier ingredient, from 60% to 95% of polysorbate 60 or polysorbate 80, 5% to 20% of a mixture of monoglycerides of low molecular weight saturated coconut acids as defined and from 0% to 20% by weight of a mixture of saturated fractions of coconut oil triglycerides. Carotenoids specified include carotene, lycopene, bixin, zcaxanthin, #-apo-8'-carotenal, canthaxanthin, cryptoxanthin, #-apo-12'-carotenal, lutein, #-apo-8'-carotenic acid and C 1 -C 6  alkyl esters of hydroxyl- or carboxyl containing members of these compounds. 0.1% to 1.0% of a preserving agent such as a tocophenol, butyl hydroxyanisole or butylhydroxytoluene may also be present. The compositions may be prepared by dissolving the colouring agent in the other components, preferably heated to 80‹C to 140‹C.
Patent GB-623259-A (GB)
Title: Method and apparatus for washing air and other gases
IPC: B01D45/10
Filed: 1947-04-22
Abstract: 623,259. Washing gases. CLARK, A. R., and BUCK, J. C. April 22, 1947, No. 10792. Convention date, Nov. 23, 1944. [Class 55 (ii)] In apparatus for washing gases, particularly air, the air is swept over the surface of water in the tank 2 and through the waterwash chamber 1 by a blower 5. A horizontally extending bar 11 is fixed across the air entrance to the waterwash chamber with its bottom edge level with the water surface. The water surface to the right of the bar 11 will rise, forming a wave, due to the decreased pressure within the apparatus when the fan is in operation, the water level to the left of the bar 11 falling a corresponding amount; a narrow opening is thus formed between edge of the bar and the water surface. Air rushing through this opening strikes against the wave and carries away a portion of it. The air passing over the top of the bar mixes with the water-air mixture and passes around a partition 14 into the chamber 1 along guides 15, 16. Due to the velocity imparted to it the water ejected from the edge 17 strikes against the guide 18, a portion of it flowing downwardly across 14 where it is again picked up by the air current. In the reversal of the air flow caused by guides 19, 19a most of the remaining water is thrown out and flows down the rear side of guide 16 to the water tank 2. Directed by guides 21, 22 the air strikes against the front wall 24 and the rear wall 20, the water thereby removed returning by channels between 18 and 24, and between 19 and 20. Any remaining water may be caught by the T baffle 26 or side baffles 27 and 28. The guides are detachably supported on brackets on the walls of the chamber 1, hooks 38 engaging over the brackets. A transverse plate 29 prevents turbulence in the water surface.
Patent GB-376767-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: B60T11/10
Filed: 1931-04-14
Abstract: 376,767. Hydraulic brakes ; transmitting-mechanism. BENDIX-PERROT BRAKES, Ltd. and CLARK, H., Kings Road, Tyseley, Birmingham. April 14, 1931, No. 10962. [Class 103 (i).] In vehicle brake-operating mechanism in which pressure applied through a pedal b or the like to fluid in a master cylinder a is transmitted hydraulically to operating cylinders d located on opposite sides of the vehicle frame and then mechanically to the brake shoes, each cylinder d contains two opposed pistons between which fluid is forced and the pistons act through rocking levers g on cables j, k or rods connected to the front and rear wheel brakes. Different pressures on the front and rear brakes may be obtained by having opposed pistons of different diameters or by employing levers g of different lengths. In the event of failure of the hydraulic system the brakes on the front or rear wheels, or on both, may be applied by a hand-lever m or the like carrying a pivoted link p having a pin- and-slot connection with a bell-crank q connected by a slotted coupling r to one of the levers g. In a modification of this mechanical brakeoperating means the levers g by which the rear brakes are operated are freely mounted on the ends of a transverse shaft, each lever being engaged by a projection on the shaft when the shaft is rotated by the hand-lever.
Patent GB-306471-A (GB)
IPC: C07C51/12
Filed: 1928-04-14
Abstract: 306,471. Selden Co., (Assignees of Jaeger, A. 0.). Feb. 21, 1928, [Convention date]. Reduction products or organic oxygen compounds and oxides of carbon.-The catalysts described in Specification 304,640 are used for the reduction of oxides of carbon or organic compounds containing oxygen such as ketones, aldehydes, acids, esters, alcohols, ethers, &c. Oxides of carbon may be reduced to formaldehyde, methyl alcohol or methane, or in presence of alkaline stabilizers which cause condensation to higher alcohols, ketones, acids, such as propionic or butyric acids, and hydrocarbons of a petroleum character. Ketones may be reduced to secondary alcohols such as acetone to isopropyl alcohol, methyl ethyl ketones to secondary butyl alcohol. Aldehydes are reduced to primary alcohols, such as acetaldehyde to ethyl alcohol, crotonaldehyde to butyl alcohol, valeraldehyde to corresponding alcohol, and benzaldehyde to benzvl alcohol. Esters are reduced to aldehydes or alcohols, such as phthalide to benzaldehyde or benzyl alcohol. Acids are reduced to inner esters or alcohols, 'such as phthalic anhydride to phthalide or to benzaldehyde or benzyl alcohol, camphoric acid to a-campholide &c. Quinones such as anthraquinone, benzoquinone, &c. are reduced to the corresponding hydroxy compounds. Phenol is reduced to benzene. The reducing agent may be hydrogen, aliphatic hydrocarbons such as paraffins, olefines, acetylenes, &c. or carbon monoxide, and vapours of aliphatic alcohols may be added. Combination may occur between the vapours of aliphatic or aromatic compounds and the oxides of carbon during the reduction. Specifications 20488/13; 8462/14 and 1358/15, [both in Class 1 (i), Chemical processes &c.], 279,466 and 286,212 also are referred to.
Patent GB-829067-A (GB)
Title: Improvements relating to amphibious vehicles
IPC: B60F3/00
Filed: 1958-04-08
Abstract: 829,067. Amphibious vehicles. MOTO GUZZI S.p.A. April 8, 1958 [Jan. 13, 1958], No. 11078/58. Classes 113 and 114. In an amphibious vehicle provided with three driving wheels 12, 13, 13, the leading wheel 12 is on the longitudinal central axis of the vehicle and serves for steering and transmitting a drive for propulsion both on land and in the water. In the embodiment of Fig. 2, the spokes 22 of the leading wheel are shaped as the blades of a screw propeller. The wheel may be turned through270degrees or more and is disposed transversely of the longitudinal axis of the vehicle when used for propulsion in the water. In another embodiment the screw propeller is detachably mounted on an extension of the hub of the leading wheel. Fig. 1a shows the screw propeller 4 mounted on a shaft 3 driven through bevel gearing 2 from the axle of the leading wheel.
Patent GB-138058-A (GB)
Title: Improved manufacture of loom shuttles
IPC: D03J5/00
Filed: 1919-05-09
Abstract: 138,058. Villome, R., and Soc. de Fleury et Labruyere. Jan. 14, 1919, [Convention date]. Shuttles.-A loom shuttle of aluminium or aluminium alloy is formed with recesses in the ends and side whereby the necessary strength is maintained and the weight reduced to that of a wooden shuttle. The shuttle is first cast so that after tooling it will have the same dimensions as a wooden shuttle, but the central recess b is made longer, while the ends are lightened by the provision of top and bottom recesses c and side recesses c<1>, leaving curved ribs between adjacent recesses. Flats or holes mav further lighten the structure, the guide-cheeks of which are provided with hollows or grooves b<1> communicating with the side recesses c<1> in the ends. A lateral eye b<11> is provided with a rubber tube to prevent the thread from rubbing against the metal. Points of a harder metal may be used.
Patent GB-312758-A (GB)
Title: Improvements in and relating to foundry moulding boxes
IPC: B22C21/00
Filed: 1928-04-16
Abstract: 312,758. Smith, A. B., and Smith, C. R. April 16, 1928. Guiding flasks and moulds.-Flasks and metal moulds, particularly when more than two are to be superposed, are aligned by knife-edged location plates carried thereby and adapted to engage loose cylindrical pins. The flask 1 has four lugs a with clearance openings b and slots by which location plates c, d are adjustably mounted, two plates being arranged at each opening b to engage pins, one thousandth of an inch larger in diameter than the locating pins to be used, arranged on a jig. The plates c at one end of the flask each have two knife edges e, Figs. 3 and 5, the plates d at the other end having only one knife edge f, Fig. 1, each. The plates c, d are preferably cast with dead hard edges e and the locating pins are true cylinders preferably of hardened steel. If desired the plates may be spot-welded instead of bolted to the lugs a.
Patent GB-652177-A (GB)
Title: Improvements in or relating to boxes or cartons of cardboard or other like material
IPC: B65D5/66
Filed: 1948-04-22
Abstract: 652,177. Cardboard boxes &c. ROFFEY, W. A. and MOLINS MACHINE CO., Ltd. April 22, 1948, No. 11146. [Classes 18 and 66] A box is formed from a cardboard blank such that the end walls of the lid 25 and body 36 are of double thickness, and, as made, the lid is held closed by a small unsevered portion of the inner ply at each of the ends, the box being opened by pressing the lid upwardly so that the connecting pieces are torn and the lid swings into the open position. Specification 507,998 is referred to.
Patent GB-990709-A (GB)
Title: Radial seal for pistons of rotary piston machines-especially internal combustion engines
IPC: F01C19/04
Filed: 1963-03-21
Abstract: 990,709. Sealing rotary engines. NSU MOTORENWERKEAG.,andWANKELG.m.b.H. March 21, 1963 [March 31, 1962], No. 11204/63. Heading F1F. A radial seal for the piston 5 of a rotary engine comprises a sealing strip 7 located in a groove 6 in the piston and having each side surface 7a, 7b in the region within the groove provided with recesses 10, 11 communicating with each other through openings 12 which may be the same size as the recesses 10, 11. A border 13 which surrounds the recesses is so proportioned and formed that the moment exerted on the sealing strip as a result of the contact under pressure between the border and the groove wall, is larger than the moment PR which acts to tilt the sealing strip about one of its outer groove edges 14. The inner end of the sealing strip is engaged in sealing pins movable in the end faces of the piston in a direction parallel to the axis of the piston and abutted by side seals (not shown) which extend between adjacent pins. A spring 9 assists fluid pressure in urging the outer end of the seal into contact with the inner shell surface 4 of the engine housing. The outer end of the seal may be reduced in width, Fig. 5 (not shown).
Patent GB-1092605-A (GB)
Title: Process for the purification of í¸-oxazolines
IPC: C07D263/12
Filed: 1965-03-17
Abstract: A process for purifying D 2-oxazolines of the general formula <FORM:1092605/C2/1> where R1 to R5 are aliphatic, cycloaliphatic or aromatic radicals comprises treating them with 0.05 to 15% by weight of an acid chloride or an acid anhydride and separating the D 2-oxazolines from the reaction mixture either by distillation or by crystallization from a solvent which is free from hydroxyl groups. Suitable D 2-oxazolines are 2 - methyl - D 2 - oxazoline, 2-propyl - D 2 - oxazoline, 2 - phenyl - D 2 - oxazoline, 2 - p - tolyl - D 2 - oxazoline and 2,4-dimethyl-D 2-oxazoline.
Patent GB-487713-A (GB)
Title: Process and apparatus for the carbonization of fuels in horizontal chamber ovens
Inventor: GROVES WILFRED WILLIAM
IPC: C10B7/00
Filed: 1937-04-20
Abstract: 487,713. Low-temperature carbonization. GROVES. W. W. (Otto & Co., Ges., Dr. C.) April 20, 1937, No. 11264. [Classes 51 (ii) and 55 (i)] In the coking of fuel in externally heated, horizontal intermittently operated chamber ovens disposed between heating flues and separated therefrom by refractory walls and within which containers for the fuel are inserted, the containers each consist of vertical metal members connected by horizontal metal plates which subdivide the chambers vertically and form base-plates for a number of compartments, the vertical plates interlocking with similar parts of adjacent containers to form continuous metal walls. The apparatus is operated for obtaining medium or low temperature coke by maintaining the usual high temperatures in the heating chambers such as over 1000‹ C. for a period until the temperature of the coke approximates to the final temperature of the coke obtaining in medium or low temperature coking, such as about 700 and. 500‹ C. respectively. In an example, with regard to coal of volatile content of 30-31 per cent, the flue temperature and the mean end temperature of the coke were 1200 and 560‹ C. respectively, the coking time being 5 hours. The containers may have the vertical sides 2 and the horizontal plates 1 integral with additional transverse walls, or the sides and transverse walls may be integral and rest loosely on the horizontal plates. In the latter construction a pair of central walls may be constructed integrally with the side and transverse walls, gases entering the same through slots. The tops of the side walls are undulatory, the troughs thereof allowing gases to pass into the spaces between the vertical walls and the oven sides. In a modification, the vertical and horizontal walls are constituted by I-beams 31, Fig. 4c, fitting firmly in the ovens, and are provided with a cover in two parts, namely, a frame 34 with transverse walls and a perforated chamotte plate 36 ribbed if desired. A single column of containers may be discharged from an oven by a plunger into a car 16, Fig. 8, running on rails 15 and provided with apertured channels 19 on its sides down which cooling water flows. With the containers having fixed base-plates in the ovens, a vertically adjustable plunger 24, Fig. 9, pushes the covering frame and lid over a collecting car 25 on to the supporting rollers 27 of another car 30, Fig. 11, the rollers being arranged in steps as shown. Suitable dimensions for the containers are specified. Powdered or briquetted fuel may be Inserted in the containers, the briquettes being formed by addition of clay, pitch, or sulphite waste liquor.
Patent GB-582951-A (GB)
Title: An improved junction for gravity conveyors of the roller type
IPC: B65G13/00
Filed: 1944-06-13
Abstract: 582,951. Roller-way conveyers. BRITISH MATHEWS, Ltd., and HALL, F. J. June 13, 1944, No. 11273. [Class 78 (i)] A junction for two gravity conveyor tracks comprising rollers 5 supported by frames 1, 2, 3, 4 leading to a common discharge track having rollers 7 is formed by two hinged and rollered tracks 8, 9 one of which is placed in the conveying position whilst the other is flung back over the upper surface of its fixed track. When in use the outer end of a hinged section rests on a flanged support 13 or 14.
Patent GB-1057265-A (GB)
Title: Discharge nozzle apparatus for jet aircraft
IPC: F02K1/36
Filed: 1965-03-17
Abstract: 1,057,265. Jet nozzles. SOC. ANON. DES ATELIERS D'AVIATION LOUIS BREGUET. March 17, 1965 [April 24, 1964], No. 11346/65. Heading F1J. A jet nozzle comprises ducts 8 spaced externally around the nozzle. Upstream of the ducts 8, flaps 11, 12 in the form of cylindrical segments can be moved by jacks 14 from positions in which they form part of the wall of the nozzle to the positions shown. At the same time, a circumferential series of overlapping flaps 25 and overlapping flaps 27 are moved by the jacks 14 from positions in which the flaps 25 form a cylindrical part of the nozzle wall and co-operate with the flaps 27 to provide a convergent annular passage to the positions shown, in which the flaps 25 provide a tapered end to the nozzle and co-operate with the flaps 27 to provide a divergent annular passage. Also, a ring 20 is moved forwardly by jacks 23 into the position shown, to uncover the space surrounding the ducts 8. A portion of the gases flowing through the nozzle now passes between the flaps 11, 12 into the ducts 8 and mixes between the ducts and in the divergent passage formed by the flaps 25, 27 with air drawn in by an ejector effect. This reduces the engine noise, e.g., at take-off. When the flaps 11, 12, 25, 27 and the ring 20 are returned to their normal positions, a narrow opening is left between the ring 20 and the flaps 27 whereby a small flow of air occurs to reduce drag at the tail end of the nozzle. The two sets of flaps 11, 12 may be replaced by a single set of flaps which may be of original form and open inwardly of the nozzle to form a deflecting pyramid.