baber/WOPTO huggingface dataset:
Patent GB-459079-A (GB)
Title: A process for the production of alkyl ester salts
IPC: C07C303/24
Filed: 1935-06-27
Abstract: Absorption products of liquid olefines obtained by cracking or dehydrogenating hydrocarbons, in strong inorganic oxygen containing polybasic acids are treated with an aqueous solution of an alkaline reacting substance at elevated temperature whereby the acid alkylsulphates are neutralized and the neutral sulphates are also converted into salts of acid alkylsulphates.  Polymerized substances present may be separated after the addition of the alkaline solution but before the decomposition of the neutral sulphates, or the neutralization and decomposition may be effected in one step.  In an example, free sulphuric acid is separated as a concentrated solution from a product obtained by the absorption, in sulphuric acid, of a benzine resulting from the vapour phase cracking of paraffin cakes. The remaining solution is neutralized with caustic soda and a further quantity of caustic soda added sufficient to decompose the neutral sulphates.  On heating, an upper layer of polymerization products and alcohols is formed which is removed.  Sodium alkyl sulphates are recovered from the lower layer by evaporation in vacuo.  The Specification as open to inspection under Sect. 91 comprises also the treatment of any neutral alkyl ester with alkaline agents to obtain the corresponding alkyl ester salts.  The neutral alkyl esters may be prepared from naturally occurring olefines and olefines derived from coal, peat, shale oil, or animal or vegetable oils, fats and waxes by any pyrogenatic treatment. Besides sulphuric acid, pyrosulphuric, phosphoric and pyrophosphoric acid may be used for the esterification.  Sodium hydrate, sodium bicarbonate, sodium hypochlorite and sodium acetate may be used for the treatment of the neutral alkyl esters to effect decomposition and the pyridine, quinoline, copper and lead salts of the acid esters are mentioned. The ester salts may be extracted by means of alcohol or ether from the crude products obtained by evaporation after the decomposition process.  The mixed neutral acid esters may also be extracted after the removal of free inorganic acid by means of benzene, gasoline, pentane or hexane.  The use of amyl alcohol to facilitate the separation of free inorganic acid is referred to.  The products may be used in the textile industry as wetting and levelling agents and also as flotation agents and spray oils.  Their use for preparing finely divided pigments and for greasing leather is referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-440268-A (GB)
Title: Improvements relating to expanding bracelets
IPC: A44C5/04
Filed: 1934-06-22
Abstract: 440,268. Bracelets. JAMES, S. S., 9, Stanley Avenue, Motspur Park, Surrey, and HIRSCHFELDS, Ltd., 11, Kirby Street, Hatton Garden, London. June 22, 1934, No. 18504. [Class 43] An expanding bracelet comprises housing links 1 containing springs 3 which are engaged by transverse pins 9 on vertically slotted connecting links 4 each of the latter being provided with transverse end bars 6 adapted to bear on the inner surface of the housing links and prevent inward displacement thereof when the bracelet is contracted.
Patent GB-498387-A (GB)
Title: Improvements in or relating to cam-trip control mechanism for automatic lathes
IPC: B23B7/00
Filed: 1937-07-03
Abstract: 498,387. Clutch-operating mechanism for automatic lathes. HAHN, H., HAHN, O., and TESSKY, K., (trading as INDEXWERKE HAHN & KOLB). July 3, 1937, No. 18531. Convention date, July 4, 1936. [Class 83 (iii)] In clutch-operating mechanism for automatic lathes having an auxiliary shaft 3, Figs. 2 and 3, with spring-operated clutch parts controlled by levers 5, the latter may be tripped or may remain inoperative according to the setting of abutment surfaces 10, Fig. 6, provided or rotatable members 13 which extend to the outside of the machine for hand manipulation. The main cam shaft 1, Fig. 2, carries striking pieces 7 which engage pivoted trips 6 carried by the levers 5, the pivoted trips engage the abutment surfaces, when these are turned into position, and the levers are lifted to enable the spring-operated clutch halves on the shaft 3 to engage the fixed clutch part 4 and rotate to perform some operation required on the machine. These clutch halves are automatically disengaged again by the pegs on the ends of the levers engaging cam grooves provided in the peripheries of the clutch halves. When the rotatable members are turned to bring the cut-away portions 11, Fig. 6, into line with the trips 6, these rotate idly and the levers 5 are not operated.
Patent GB-863945-A (GB)
Title: Tea rolling machines
IPC: A23F3/12
Filed: 1958-06-10
Abstract: 863,945. Tea rolling machines. CROMBIE, P. June 10, 1958 [June 21, 1957], No. 18550/58. Class 129. A tea rolling machine with two rolling members 1, 2 having co-operating surfaces 4, 5, one of which is reciprocable relative to the other so that the leaf is rolled and progressed intermittently from the feed to a discharge point. The surface 5 is biased by means 6, 6 towards the surface 4 of the member 1 which also has side walls 3 to form a trough. The surfaces 4, 5 have serrations 8, 9 to progress the leaf left to right as shown. Member 2 is pivoted on a pivot 7 adjustable vertically at the discharge end 10 so that its feed end 11 may be withdrawn away from the bottom 4 of the trough. Tea leaf is fed in by a conveyer belt 12. Yieldable biasing means 6, 6 comprise springs 15, 15 adjustable by hand wheels 16, 16 and non-rotatable spindles 17, 17, pivots 40, 41 being provided at the top and bottom. Each spring 15 is mounted on a floating spindle 18 connected to the upper side of member 2 and floating within one of the spindles 17. Feed conveyer belt 12 is operated from the crankshaft and cams 19, 20 actuated from this crankshaft control the movements of the feed and discharge ends of member 2. Feed end 11 is pivoted on a structure comprising vertical side members 21, 21 and lower and upper crossmembers 22, 23 and acted on by a bell-crank lever 24 on push rod 25 and cam 19 which moves the end 11 alternately away from and towards the trough bottom 4, the lowest position being the rolling position. Member 2 is usually set at an angle since the rolling reduces the volume of the leaf.
Patent GB-658620-A (GB)
Title: Improvements in or relating to electric-motor-driven, valve-regulating apparatus
IPC: B64C25/22
Filed: 1948-07-09
Abstract: 658,620. Control of motors. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES S.I.A.M. July 9, 1948, No. 18557. Convention date, July 12, 1947. [Class 38(iii)] [Also in Groups XXIV and XXIX] Valves 6, 7, and 8, 9, which regulate the supply of fluid to a hydraulic jack 3, are operated, through rod 20, rocking member 21, and crank arm 23, by a reversible electric motor having rotor 24 and stator winding 25, the motor driving the rod 20 to alternative extreme positions. The motor drives a worm wheel 29 which is mounted freely on a shaft 22 and is integral with a driving plate 30 having a dog 31. Pawls 32, 33, are mounted on pins in a driven plate 36 which is keyed to the shaft 22. The member 31 is adapted to engage one of the pawls, according to the direction of rotation, and so drive the crank 23 until a roller 37 engages the pawl and uncouples the crank from the motor. A ball 39 simultaneously enters one of the slots 40, 41 for exact positioning of the crank. The declutching of the motor is substantially coincident with the opening of its supply circuit, the rod 20 operating a switch 26 which prepares the circuit for reverse operation. Reversal is effected upon operation of a two-way switch 27, the pawl which was formerly inoperative now being positioned to take up the drive. The reversing switch 26 may alternatively be of the snap-action type, actuated by a cam on the shaft 22. An indicating device mounted on the shaft 22 may show which of the pipes 1, 2, is connected under pressure or exhaust.
Patent GB-516183-A (GB)
Title: Improvements in or relating to apparatus for heating roads and like surfaces
IPC: E01C23/14
Filed: 1938-06-22
Abstract: 516,183. Road-surface heaters; mounting liquid-fuel burners. JOHNSTON BROS. (CONTRACTORS), Ltd., and HOBBS, J. E. June 22, 1938, No. 18603. [Class 107] [Also in Group XI] A burner 10 supplied with liquid fuel and air by pipes 15, 16 is carried in a part-spherical mounting 11 which can be swivelled on its seating 12, 13 so as to move the flame in a circular path over the road surface beneath a hood or cowl secured to the combustion chamber 18. The mounting may be swivelled by' a power-driven or manually operated spindle 22 carrying a ball-ended crank pin 21 engaging a socket is an extension 20 of the mounting 11. The apparatus may be mounted on a vehicle carrying a prime-mover driving a compressor for supplying air to the burner and connected by a belt gearing to a shaft 27 geared to the spindle 22.
Patent GB-577575-A (GB)
Title: Improvements in and relating to the processing of rubber substances
IPC: C08K3/22
Filed: 1943-11-09
Abstract: Natural or synthetic rubber compositions are hardened by heating after the addition of a minor amount of a hydratable substance which is set by water added to, or present in the mix. The composition preferably is, but need not be vulcanized.  Light magnesia is the preferred addition; heavy magnesia and "Neosyl MH" (Registered Trade Mark) also are specified.  According to an example, a mix consisting of 1000 parts smoked sheet rubber, 1800 parts zinc oxide, 300 parts light calcined magnesia, 10 parts "Vulcafor" (Registered Trade Mark), 20 parts stearic acid, 10 parts "Reogen" (Registered Trade Mark) and 25 parts sulphur, vulcanized for 10 mins. at 60 lbs. steam pressure, had a Shore hardness of 57; the same mix to which 360 parts of water were added on the mill vulcanized for 9 mins. at 40 lbs. pressure, had a Shore hardness of 86.
Patent GB-1003405-A (GB)
Title: Improvements in or relating to biosynthetic products and the manufacture thereof
Filed: 1963-05-10
Abstract: <PICT:1003405/C2/1> An antibiotic Canarius which (a) is effective in inhibiting the growth of vaccinia, Newcastle disease, Influenza A and Coe viruses and (b) is effective in inhibiting the growth of various yeasts, and in its essentially pure crystalline form (c) is soluble in water, dimethyl sulphoxide and glacial acetic acid, and insoluble in butanol, higher alcohols, acetone and ethers, (d) has the elemental analysis C = 38.40%, H = 4.94%, N = 24.05%, O = 31.85%, (e) has a molecular weight of 394, (f) has an ultraviolet absorption maximum in water at 264.5 mm , (g) has an optical rotation [a ]25D + 55.4 (c = 0.09% in water) and (h) has a characteristic infra-red absorption spectrum as shown in the figure, may be produced by cultivating Streptomyces canarius var. canarius NRRL 2976 or a canarius-producing mutant thereof in an aqueous nutrient medium under aerobic conditions until substantial activity is imparted to the medium by the production of canarius, and isolating canarius from the culture medium, particularly by adsorption on a surface-active adsorbent followed by elution therefrom.
Patent GB-455104-A (GB)
Title: Apparatus for separating hollow bricks from a hollow rod or column of clay or the like and for closing said bricks in one operation
IPC: B28B11/00
Filed: 1935-06-29
Abstract: 455,104. Hollow closed bricks. ULLRICH, A. H., 14, Dagoweg, Bandoeng, Java, Dutch East Indies. June 29, 1935, No. 18654. Convention date, Oct. 8, 1934. [Class 87 (i)] [See also Group V] Hollow bricks are separated from a hollow clay rod and closed in one operation. The clay rod, Fig. 3, has a number of passages 1 separated by partitions 2, grooves 5 and additional slot-shaped passages 4 in the vertical partitions being provided to facilitate the separation into bricks. In operation, the ends 32, 33 of the block are first folded inwards, a central portion 36 is then cut out and the walls are finally closed leaving a small central slot in the end faces of the bricks.
Patent GB-920537-A (GB)
Title: Connector for tubular scaffolding
IPC: E04G7/02
Filed: 1959-06-02
Abstract: 920,537. Releasable fastenings. F. SEIDEL. June 2, 1959, No. 18727/59. Class 44. [Also in Group XXVIII] A releasable connector for tubular scaffolding includes a cross-linking head 1 for connecting the ends of four tubes 5 having a common median plane, a central bore 3 in the head at right angles to the plane for receiving a throughgoing tube 4, two cross-linking members 8 engaging the head and each having a central aperture 12 in register with the bore and four removable pins 15 interconnecting the head and the members and for securing the ends of the four tubes to the connector. The head has four extensions 2 each engageable with one of the tubes 5, registering holes 6, 7 being provided in the tubes 5 and extensions 2 for the removable pins. The head is positioned on the tube 4 by means of two pins 9 which extend diametrically through the tube 4 one on each side of the head, each pin 9 having a square extension 10 at each end which protrude from the tube 4 and form abutments to prevent movement of the head. The bore 3 in the head which receives the tube 4 has two diametrically positioned grooves 11 through which the extensions 10 can pass, the arrangement being such that when the head has been positioned between the pins 9, rotation of the head through 90 degrees fastens the head in place. The crosslinking members are in the form of flat plates 8 each of which carries two of the removable pins 15 which pass through the holes 6, 7 in the tubes and extensions 2, the plates being positioned on opposite sides of the head and two pins 15 extending upwardly and two downwardly. One pin on each plate has a groove to receive a locking clip 17 having a keyhole slot. In a modification, instead of pins 15 attached to the plates 8, separate headed pins are used which are secured in place by plates 17. As an alternative to plates 17 with a keyhole slot, caps made of a plastics material can be employed; these are elastic and have a rim with an internally protruding flange which fits into the groove in the pin; a number of constructions are described some having a tab by which the cap can be easily removed. Instead of using flat plates 8 two members having curved extensions which together embrace the tube ends can be used; each member carries two pins for engaging the holes 6, 7 as previously and each extension has a groove for receiving a clip, the clips serving to secure the members in position and also for securing bracing members to a structure incorporating the connector.
Patent GB-1207752-A (GB)
Title: Process for the preparation of the optical isomers of 1-ethyl -2-aminoethylpyrrolidine
IPC: C07D207/09
Filed: 1968-04-22
Abstract: 1,207,752. Optical isomers of 1 - ethyl - 2 - aminomethyl - pyrrolidine. SOC. D'ETUDES SCIENTIFIQUES ET INDUSTRILLES DE L'ILE - DE - FRANCE. 22 April, 1968 [24 April, 1967], No. 18932/68. Heading C2C. The levorotatory and dextrorotatory isomers of 1 - ethyl - 2 - aminomethyl - pyrrolidine are separated by a process comprising forming a tartrate salt of a mixture of said isomers with an optically active tartaric acid and separating an optically active tartrate salt by crystallization. It is preferred to treat the pyrrolidine first with d - tartaric acid which leads to crystallization of the d-tartrate of dextrorotatory 1 - ethyl - 2 - aminomethyl - pyrrolidine. The crystals are removed by filtration and the optically active amine may be liberated conventionally from the tartrate. The filtrate is then rendered alkaline and treated with I - tartaric acid to yield the l - tartrate of l - 1 - amino - 2 - aminomethyl - pyrrolidine in the crystalline state. If desired, the method of treatment may be reversed.
Patent GB-1529919-A (GB)
Title: Electrostatic precipitators having collector electrode
IPC: B03C3/53
Filed: 1976-05-07
Abstract: 1529919 Electrostatic precipitators DART INDUSTRIES INC 7 May 1976 [22 May 1975] 18945/76 Heading B2J [Also in Division B3] A hollow cylindrical collector electrode in an electrostatic precipitator comprises two concentric spaced apart annular walls 26, 28, Fig. 9, with a lightweight cellular-like filler structure 30 disposed therebetween and upper and lower annular edge portions 32, 34 which are bonded to the two walls 26, 28 to hermetically encapsulate the filler structure 30. There is bonded and sealed onto the top surface 34 of the collector electrode a tapering shoulder structure 76 which in turn supports a water distributor conduit 20 having openings 96, 98 for delivering via the shoulders 80, 82 a sheet of water over the inner and outer electrode surfaces 36, 38 for collecting precipitated dust. The filler structure 30 may comprise a lightweight cellular or accordian like paper, metal, plastics or resin flexible structure, Figs. 2, 3 and 8 (not shown), which is resin bonded to respective glass fibre and resin wall structures. Alternatively, Fig. 6 (not shown), the filler structure may comprise a polyurethane foam bonded between glass fibre resin or thin stainless steel annular walls. The cylindrical collector electrode may be formed in two halves by applying to a mould surface 54, Fig. 7, over a release agent, a resin gel coat 62 and a fibre-glass cloth or mat to form the wall 26 having an integral end portion 64. The cellular filler material 30 is then applied over the arcuate surface followed by an outer wall similar to the inner one. Two or more of such arcuate part electrodes are bonded together to form the complete cylindrical electrode.
Patent GB-147072-A (GB)
Title: Improvements in or relating to a method and apparatus for grinding malt
IPC: B02C4/06
Filed: 1920-07-06
Abstract: 147,072. Schott, H. June 25, 1919, [Convention date]. Roller mills.-Malt is ground in a three-roller mill with three passages and an interposed sifting-devioe which separates the crushed malt into meal, groats, and spelt, the spelt and groats passing through the sifter being ground separately but simultaneously between the last two rollers. The crushed grain from the first two rollers A, B passes on to a. sieve 1 and the material passing through falls cn to a sieve 2 which retains the groats. The spelt retained by the sieve 1 passes by ducts k<1>, k<3>, k<5> to a sieve 3 at the lower end of which are guide-plates b<1> to direct the spelt to the end portions of the last two rollers B, C. The groats are directed by plates c through ducts k<2>, k<4> to a sieve 4 having guide-plates b which direct the groats to the middle portion of the rollers B, C. The meal or flour passes through the sieve 2 and is delivered by side ducts which conduct it around the sieves 3, 4 and adds to it the meal delivered from the sieve 4. The middle portion of the third roller C is of larger diameter than the end portions and may be grooved.
Patent GB-775758-A (GB)
Title: Improvements relating to hand tools and the like
IPC: B25F1/04
Filed: 1953-07-09
Abstract: 775,758. Hand-tool handles. McCAMMOND, A. N. W. Oct. 5, 1954 [July 9, 1953], No. 19095/53. Class 61 [Also in Group XIV] A detachable handle for a hand-tool comprises a stock incorporating two spaced steel plates 2. a steel lever 5 pivoted within the stock at 4 and spring pressed so as to lie flush with one edge, the opposite edge and one end of the stork being open and the lever having parts extending one towards the open edge and the other towards the open end of the stock, the said parts each comprising a tooth-like abutment as at 11, 13 which in normal position of the lever are spaced from pins 9, 10 respectively to allow a tool 19 to be snapped into one of two positions on the handle. Wooden or other cheeks are fitted to the plates 2. Tools for use with the handle are each provided with a flat circular head 17 having a notch 18 at each side to engage with the pins and abutments. The tool is released by, finger pressure on the non-abutmented end of the lever 5 at the finger recess 14.
Patent GB-297182-A (GB)
Title: Improvements relating to reflecting apparatus
IPC: B60Q1/14
Filed: 1927-07-20
Abstract: 297,182. Whincop, J. R. July 20, 1927. Reflectors; adjusting reflectors from a distance. -The reflector of a vehicle or like lamp is divided longitudinally into two overlapping halves or sections adapted to be opened with respect to each other so as to vary the width of the reflected beam, the overlap being such that, when the reflector is opened to its fullest extent, there shall be no gap between the two sections. In the form shown, the upper section A is fixed and the lower section B is pivoted at D and is controlled by spring mechanism E. The section B is provided with one or more stops F adapted to engage one or more stops on the section A so as to limit the relative movement of the two sections. The sections may be controlled by means of drag-links and a micrometer screw, and the reflector may be enclosed in a lamp casing which is adjustably mounted to control the direction of the projected beam of light.
Patent GB-613716-A (GB)
Title: Improvements in the production of textile materials
IPC: D01G1/02
Filed: 1946-06-27
Abstract: Continuous filaments are converted into staple fibres by feeding a mass of randomly oriented continuous filaments at a controlled speed to a combing point, and combing them onwards from that point at a higher speed.  The process is particularly applicable to crimped filaments produced, for example, by the free extrusion of a solution of an organic derivative of cellulose at high velocity, and the collection of the filaments so formed without tension; or by the method of Specification 566,504.  To increase fire-resistance of the product, 5 to 10 per cent of trichlorethyl phosphate may be included in the spinning solution.
Patent GB-906508-A (GB)
Title: A rotor for electric machines with axially locked slot keys
IPC: H02K3/487
Filed: 1959-06-05
Abstract: 906,508. Slot wedges for dynamo-electric machines. ZAVODY V.I. LENINA PLZEN NARODNI PODNIK. June 5, 1959 [June 16, 1958], No. 19312/59. Class 35. Slot-wedges are secured against axial displacement by a key engaging slots in both the core and the wedges and located by a shrunkon ring, a damping ring or end-bell. In the form shown in Fig. 3, the ends of the wedges 5 are flattened and recessed at 6 to accommodate rectangular metal pins 4 projecting from slots in the core. The pins are secured radially by a projecting part of the coil end-bell. The pins 4 may be of various shapes and may be threaded for easy removal. In the modification shown in Fig. 10, a slot 2 accommodating a keying ring 9 runs across both the slot-wedges 5 and the core, displacement of the ring being prevented by a tyre 10, an extension of the end-bell 7, or by a damping ring. Alternatively, the ring 9 may be of dovetail or like shape to prevent radial displacement.
Patent GB-1246706-A (GB)
Title: Method of metal plating on plastics
Inventor: UNDERWOOD JOHN DUCKLES
IPC: C23C18/16
Filed: 1969-04-16
Abstract: 1,246,706. Electroless plating. STANDARD TELEPHONES & CABLES Ltd. April 16, 1969, No. 19340/69. Heading C7F. A plastics, e.g. A.B.S., substrate is selectively electroless plated with e.g. Ni by coating it with a photo-resist, exposing to ultra violet light, developing etching in e.g. a 750 ml/11H 2 SO 4 , 50g/ 11 CrO 3  solution, immersing in stannous chloride, palladium chloride and then plating with an acid bath. The nickel may be subsequently electro-plated with Au or Ag.
Patent GB-759267-A (GB)
Title: Improvements in diamine compounds
Filed: 1953-07-13
Abstract: The invention comprises N-heptadecyl-N-methyl-N1 : N1-dimethyl ethylene diamine and its water-soluble acid addition salts.  The amine is obtained by reacting a b -dimethylaminoethyl halide with heptadecyl methyl amine, suitably in a solvent such as xylene, an example being given of this method.  Salts mentioned are those with sulphuric, hydrochloric, hydriodic, phosphoric, hydrobromic, tartaric, maleic, lactic, acetic, citric, benzoic, gentisic, salicylic, resorcylic, phenylacetic, mandelic, cinnamic, hydrocinnamic, isocinchomeronic and quinolinic acids.