baber/WOPTO huggingface dataset:
Patent GB-980240-A (GB)
Title: Process for the production of water-soluble salts of ampicillin
IPC: C07D499/00
Filed: 1963-08-28
Abstract: Injectable water-soluble salts of a -amino benzyl penicillin are obtained by dissolving crude a -aminobenzyl penicillin in an organic solvent by the addition thereto of a trialkylamine, e.g. triethylamine, filtering to remove impurities and recovering the salt so produced by (a) freeze drying or using a rotary evaporator, (b) adding a non-solvent such as petroleum ether, ethyl acetate and ether.  Alkali metal salts of a -aminobenzyl penicillin are prepared by adding a solution of an alkali metal salt of a carboxylic acid in an organic solvent to the filtrate to precipitate the corresponding alkali metal salt, e.g. the potassium salt by the addition of potassium 2-ethyl hexane carboxylate.  Specified trialkylamines are tri-methyl-, tri-ethyl- and tri-propyl-amine and methyl diethylamine. The sodium salt may be produced using sodium 2-ethyl-butanoate or sodium 2-ethyl-caproate, and a desiccant, e.g. anhydrous sodium carbonate, may be added to remove water liberated by the reaction. Specification 873,049 is referred to.
Patent GB-635693-A (GB)
Title: Improvements in cask filling devices
IPC: B67C3/30
Filed: 1946-11-18
Abstract: 635,693. Filling casks. RYDER & CO. (MANCHESTER), Ltd., T., and FAWCETT, H. Nov. 18, 1946, No. 34092. [Class. 21] [Also in Groups XVIII and XXIX] A device for filling casks, and of the type having co-axial tubes for liquid. delivery and venting air, has a tube h attached to the lower end of the vent tube b and the tube h carries an external sleeve j, the tube h and sleeve j having slots i, k at the point of intersection of which, air may escape from the cask. The sleeve j is turned to vary the height of the point of intersection and thus the level of.liquid. A screwed adaptor g joins the tube h to the vent tube b and a collar m holds the sleeve j in position. Numbered graduations and a pointer may be fitted to assist in the correct adjustment of the sleeve.
Patent GB-645421-A (GB)
Title: Hay-making and like agricultural machines
IPC: A01D87/10
Filed: 1947-12-24
Abstract: 645,421. Road scavenging. THWAITES, L. B. Dec. 24, 1947, Nos. 34123/47, 8941/48 and 10962/48. [Class 107] [Also in Group I] A hay-making machine may be used for collecting leaves, paper or other material lying on the ground, and comprises a fan 38 which delivers a stream of air along a passage 34 and a rotatable spiked roller 23 which delivers material into the airstream to be carried along by the airstream between the fan outlet 36 and the outlet 42 of the passage. As shown the machine is towed by a tractor and the fan 38 and spiked roller 23 are driven by gearing from the tractor power take-off shaft. The lifted material is carried up an inclined duct 35 where it impinges on a baffle 41 and falls into a receiver which moves by the side of the machine. A rotary brush may be substituted for the roller.
Patent GB-394318-A (GB)
Title: Improvements relating to doors for vehicles and for other purposes
IPC: B60J5/04
Filed: 1931-12-09
Abstract: 394,318. Doors for vehicles, show-cases, etc.; windows. LEE, T. H., Great Lodge, Great Bardfield, Braintree, Essex. Dec. 9, 1931, No. 34194. [Class 103 (ii).] A door, particularly for vehicles and show-cases, or a window, is suspended upon a vertical axis by a pair of arms or members disposed one beneath the other so that, when opened, it moves bodily forwards or rearwards, means being provided, for example one or more pivoted arms, which impart to it a substantially parallel motion. The pair of arms may form the arms of a U-shaped frame, one or more of which may be provided, pivoted about a substantially vertical axis or axes on a door or window frame, the door being pivoted in the case of one U-frame to the extremities of its arms, or to the vertical member joining the arms, and, in the case of two supporting U- frames, to the extremities of the four arms, or to the two vertical members. As shown, two vehicle doors a, d are pivoted each to one vertical member c or e of one frame and to the extremities of a pair of arms b<1> or f<1> of the other frame, the frames being hinged to the vehicle body respectively by the extremities of the arms c<1> or e<1> and by the vertical member b or f. When the members b, c, f, e of the U-frames are not truly vertical the doors rise and fall in the opening and closing movements respectively. The arms of a pair of frames may be of unequal length so that the door lies to one side when fully open. Locking means for the door comprises a bar centrally pivoted inside the door and adapted to engage oppositely-disposed catches at the edges of the door opening.
Patent GB-813897-A (GB)
Title: Improvements in or relating to propellent powders
Inventor: CAVANAUGH ROBERT MORRIS
IPC: C06B21/00
Filed: 1957-11-01
Abstract: 813,897. Propellent powders. DU PONT DE NEMOURS & CO., E. I. Nov. 1, 1957, No. 34232/57. Class 9(2) Nitrocellulose is mixed with finely pulverized urea, the mixture formed into a colloid which is extruded and formed into grains and the urea is leached therefrom, preferably by water at about 100‹C. Preferred nitrocelluloses have a nitrogen content of from 12.85 to 13.25 per cent. The mixture may be colloided in butylacetate/ ethyl alcohol, ether/alcohol or ethyl acetate/alcohol. It is preferred to use 10 to 100 parts per 100 parts by weight of nitrocellulose. Diphenylamine may be present in the compositions as a stabilizer.
Patent GB-367877-A (GB)
Title: Improvements appertaining to road vehicles
IPC: B60G9/00
Filed: 1930-11-14
Abstract: 367,877. Road vehicles. SOUTHERN, H., 284, Blackburn Road, Bolton, Lancashire. Nov. 14, 1930, No. 34259. [Class 108 (ii).] Lateral tilting of the frame or body c, c<1> relatively to the axles A is prevented by linkwork connections 21, 22, 21a, 22a resembling toggle linkwork on each side of the vehicle, the two pairs of links being connected by a transverse rod 25. This arrangement may be duplicated as shown at 26, 27, 26a, 27a, 25a, one set being arranged in front of and the other behind the axle A.
Patent GB-605284-A (GB)
Title: Improvements in or relating to a process for the manufacture of chlorinated derivatives of alpha-chloroethylbenzene
IPC: C07C25/28
Filed: 1945-12-18
Abstract: alpha-Chlorethylbenzene or a nuclear-chlorine substitution product thereof is reacted in the liquid phase with gaseous chlorine at a temperature not exceeding 130 DEG  C. (preferably -10 DEG  to 130 DEG C.) in presence of iodine.  The iodine may be formed in situ, e.g. from iodoform or ethyl iodide and a solvent such as nitrobenzene may be employed.  The compounds formed by addition of chlorine to the nucleus may be separated from substitution products and uncharged starting material by fractional distillation and decomposed pyrolytically to give nuclear chlorine substitution products with elimination of hydrogen chloride, preferably at 180-300 DEG  C. and 50-200 mms. pressure.  Side-chain chlorination exclusively takes place at 90-130 DEG  C. and nuclear chlorination exclusively below 30 DEG  C.  The products may be converted to chlor-styrenes by splitting off hydrogen chloride. The iodine may be removed after chlorination, e.g. by activated charcoal or sodium thiosulphate.  Examples describe the chlorination at 20 DEG  C. in presence of iodine of alpha-chlorethylbenzene and of a mixture of its mono- and di-chlor substitution products, followed by a combined pyrolysis and fractional distillation of the products, the temperature of the kettle being 220-250 DEG  C.  An example also describes the side-chain chlorination of alpha-chlorethylbenzene at 95 DEG  C. in presence of iodine.
Patent GB-761333-A (GB)
Title: Improvements in or relating to rotary fluid meters
IPC: G01F1/10
Filed: 1954-11-26
Abstract: 761,333. Rotary meters. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Nov. 26, 1954 [Sept. 8, 1954], No. 34297/54. Class 110 (2). A fluid meter having a rotor formed of two concentric and coaxial helices s, S, one forming an inlet helix and the other forming an outlet helix mounted on an inner tube 7<SP>1</SP> separating the two helices whereby there is a leakage path 16 between the inlet flow of the inlet helix and the outlet flow of the outlet helix is characterized in that the cross-section on the outlet side of the outlet helix where it communicates with the leakage path is larger than the inlet crosssection of the inlet helix where it communicates with the leakage path in order to reduce the extent of the leakage from the inlet flow to the outlet flow. In Fig. 2 the height h of the outer outlet helix S is less than the height H of the inner helix s but the cross-sectional area of the outer helix is greater than that of the inner helix so that the velocity of the fluid in the outer helix is less than that in the inner helix, giving an increase in pressure in the outer helix which balances the drop in pressure due to friction losses so that the pressures on each side of the leakage path 16 are approximately equal. In a modification, Fig. 10, the tube 17 stops intermediate the bottoms of the helices 7, 3 with an outer stationary wall 9 and the tube 17 having tapered surfaces 20<SP>1</SP>, 19<SP>1</SP> to increase the crosssectional area of the outlet of the outer outlet helix where it is in communication with the leakage path 16. Other modifications and cross-sectional arrangements of the vanes of the helices are described. The helices may be arranged so that the fluid enters through the outer helix and is discharged through the inner helix.
Patent GB-841678-A (GB)
Title: Improvements in or relating to pipe-wrenches
IPC: B25B7/10
Filed: 1958-10-27
Abstract: 841,678. Wrenches. BAHCO A. B. Oct. 27, 1958 [Oct. 28, 1957], No. 34334/58. Class 61. Relates to the pivotal connection of the abutment member with the movable jaw of a wrench having the movable jaw 4 attached to a U-section metal shank 6 and pivotally connected by a pin or the like to one U -section end of an abutment member 9 which is adjustably displaceable along the shank of the fixed jaw 1 by means of a nut 11 screwed on the said shank. The jaw 4 is provided with a lug 7 which is fixed between the walls of the movable jaw shank 6 and has a bore to receive the pivot pin 10, the lug being provided with arcuate bearing surfaces 12 on which bear correspondingly rounded ends 13 of the abutment member 9. The pivot pin 10 passes through the lug and the two walls of the abutment member 9 and may or may not pass through the walls of the shank 6.
Patent GB-301036-A (GB)
IPC: C08B3/00
Filed: 1928-11-22
Abstract: 301,036. I. G. Farbenindustrie Akt.- Ges. Nov. 23, 1927, [Convention date]. Samples furnished. Carbohydrate esters. - Esters of cellulose or other carbohydrates are prepared by treating them with an acid anhydride or an acid halide or with mixtures thereof or with mixtures of the anhydrides or halides with the corresponding or other carboxylic acids in liquid sulphur dioxide with or without an added catalyst. The liquid sulphur dioxide can be separated from the esters obtained bv distillation and the small amount of acid formed in the reaction can be subsequently removed by washing with water. The esterifica.- tion can be carried out at temperatures below or above the boiling point of the liquid sulphur dioxide and the esters may be partially saponified by known processes. In examples, cotton linters are treated with liquid sulphur dioxide, glacial acetic acid, acetyl chloride and zinc acetate, the liquid sulphur dioxide is distilled and the residue mixture washed with water until neutral; hydrocellulose is treated with liquid sulphur dioxide, butyric anhydride and bromine until a test portion of the mixture is soluble in acetone; wood cellulose is treated with butyric acid, acetic anhydride and liquid sulphur dioxide, and the cellulose butyroacetate worked up as described above.
Patent GB-1008075-A (GB)
Title: Heat-contact welding device for welding together superimposed layers of thermoplastic material
IPC: B29C65/02
Filed: 1962-09-07
Abstract: 1,008,075. Package sealing devices. FARBWERKE HOECHST A.G., and BEBO-PLASTIK G.m.b.H. Sept. 7, 1962 [Sept. 7, 1961], No. 34408/62. Heading B8C. [Also in Division B5] A device for welding together superimposed layers of thermoplastic material, e.g. a cover to the peripheral rim of a foodstuffs container, comprises a welding element in the form of a heat-conducting diaphragm 1 fitted into a pressing element 3, 20 equipped with a cooling device and disposed between a heat transfer block 2 and a resilient counter member 5 to support the layers to be welded, the block 2 being axially displaceable independently of the element 3, 20. The pressing-and-cooling element comprises a head 3 and a neck 20 slidable in a guide 17. Borings 18 are provided in the neck 20 parallel to the axis thereof and at their upper ends are connected to an inlet and an outlet for a cooling fluid which circulates through a hollow space 22 in the head 3. In use, a filled container 15 with a superimposed cover 16 is suspended in a frame 7 and a shaft 23 is moved downwardly so that a disc 4, which may be latticed, thereon contacts the cover 16. The element 3, 20 is moved downwardly until the annular diaphragm 1, which may be made of copper-sheet, rests on the flanges to be sealed. A heat-storage block 19 and the heat transfer block 2, which may be made of copper or bronze, move into contact with the diaphragm 1 which heats rapidly and forms the seal. The blocks 2, 19 move upwardly whilst the element 3, 20 remains in contact with the seal which cools rapidly, after which cooling the element 3, 20 moves upwardly. The member 5 may consist of a silicone rubber strand. The frame 7 is supported on a plate 9 resiliently mounted by a rubber bearing on a base 10, the plate 9 acting to relieve the flange of the container 15 of the weight thereof during sealing. Irregularlyshaped surfaces may be sealed by using a suitably shaped diaphragm 1. A number of frames 7 may be disposed in carriers 8, Fig. 2, for paternoster-like rotation on an endless intermittently movable chain 24. A number of frames 7 may be disposed side-by-side and perpendicular to the feed direction on each carrier 8.
Patent GB-1035439-A (GB)
Title: Method of joining metal sheet or strip by resistance welding
Inventor: SEELOFF MELVIN MAX
IPC: B23K11/06
Filed: 1964-08-22
Abstract: 1,035,439. Welding by pressure; hammering. TAYLOR WINFIELD CORPORATION. Aug. 22, 1964, No. 34447/64. Headings B3H and B3R. In the electric resistance welding of metal sheet or strip 13, 14, Fig. 3 (not shown), the edge portions to be joined are first cold-worked to reduce their average thickness and form welding surfaces 18 which are overlapped and then welded by electrodes 15, Fig. 7 (not shown). In one embodiment, two metal strips 13, 14 to be joined endwise are gripped respectively by a fixed clamp 10 and a movable clamp 11 of a welding machine. The clamp 11 is then titled and moved inwardly to overlap the ends of the strips, Fig. 2 (not shown) and these ends are then cold peened by hammers 16 to form the inclined surfaces 18. Strip 14 is then withdrawn slightly to provide small recesses 19, Fig 4 (not shown), at each sides of the joint for receiving excess metal during welding. This is effected by roller electrodes 15 and the joint is then flattened by the peening hammers 16, Fig 7 (not shown), if necessary with additional heat. In another embodiment, Fig. 8 (not shown) the cold working is performed by planishing rolls which also flatten the welded joint. The cold-working of the edges may be performed outside the welding machine by separate dies 21-24, Figs. 9, 10 (not shown). Bar type electrodes may be used instead of rollers. The invention is of particular use in joining the ends of strip for use in continuous processes. It may also be used for edge welding sheet metal components of cabinets.
Patent GB-489033-A (GB)
Title: Improvements in or relating to sling-locks
IPC: B66C1/12
Filed: 1936-12-15
Abstract: 489,033. Slings. THIRLWELL, R. Dec. 15, 1936, No. 34478. [Classes 78 (ii) and 78 (iv)] A sling-lock comprises a cylindrical sleeve 1 with its lower end in a plane normal to its axis, and with the means for attachment of the end of the sling in a plane projecting radially from the sleeve. The attachment means may comprise a hook, or, as shown, an eyelet portion 2. Webs 5 may be provided at the lower end of the sleeve to maintain the tilting axis of the load parallel to the plane of the sling. The edge of the sleeve which contacts with the load is of relatively large curved section so that as the load tilts its tilting axis moves towards the outside of the sleeve and the grip on the load increases. A transverse locking bar 8 for chain slings is adjusted by a screw 6. Specification 387,355 is referred to.
Patent GB-631652-A (GB)
Title: Improvements in or relating to rotary cutter heads
IPC: B27G13/10
Filed: 1947-12-29
Abstract: 631,652. Rotary cutters; wood trenching. WHITEHILL SPINDLE TOOLS, Ltd., SMITH, S. F., and GOWER, H. L. Dec. 29, 1947, No. 34478. [Class 145 (i)] A rotary cutter head comprises a body 10 with a parallel-walled. groove 16 for an outwarldy-projecting cutter 12, the plane of the groove being parallel with but offset from the axis of the body; a recess 18 in the groove wall which is nearer the body axis and having mutually parallel inner and outer walls 26, 27; a clamping block 17 slidable between these parallel walls; and a screw device 29, 33 fitted within the body with its axis substantially at right angles to the plane of the cutter groove 16 and arranged to urge the block 17 in line with the screw axis. The blocks 17 preferably extend to and are flush with the opposite faces of the cutter head; the screw 29 is preferably threaded into the block 17 and locked by a pin 31 ; holes 35 for lubricant are provided, whilst a backing member 37 (not shown) and similar to that described in Specification 615,152 may be provided behind the cutter blade. Two or more cutter blades may be thus fitted in the cutter head. For routing (see Fig. 4) the head 10b may be integral with a tapering spindle 42 threaded at 43, and the cutters 12 may project axially as at 12b, as well as or instead of, radially as at 12a.
Patent GB-344821-A (GB)
Abstract: 344,821. Vaporizing by heat. CALVERT & CO., Ltd., F. C., Gibbon Street, Bradford, Manchester, and FOSTER, B. LE N., The Obelisk, Knutsford, Cheshire. Dec. 7, 1929, No. 37602. [Class 81 (i).] A vaporizer for carbolic acid or other liquid disinfectants, of the kind in which the liquid is fed in drops on to an electrically heated surface, comprises a cupshaped liquid receptacle a, having a depending rim all, supported on a perforated cylindrical casing b fitted with an internal ring e supporting an electric heating element d, which is brazed or welded to the casing b so as to form a liquid-tight joint and is fitted with terminals h<1> connected to plug connections f. A switch may also be provided. Apertures in the rim all and in the upper end of the casing b may be provided to receive the inturned ends of a handle c. A perforation a<1> in the cup a allows the liquid to fall in drops on to the heater d. The heater is preferably of the known kind in which the resistance wire is enclosed in a steel or nickel tube embedded in a cast-iron plate, and is insulated from the tube by a layer of magnesium oxide formed by coating the wire with magnesium or an alloy thereof and then heating it under pressure in the presence of steam. Vaporizers in which a liquid falls in drops on to a body previously heated in a fire are also referred to. According to the provisional Specification the electric heating element may be carried on a pillar secured to the base of the apparatus.
Patent GB-1044526-A (GB)
Title: Improvements in or relating to cores for transformers and chokes
IPC: H01F27/26
Filed: 1962-09-10
Abstract: 1,044,526. Transformers and inductors. H. W. FIELD & SON Ltd., and F. L. TREBY. July 29, 1963 [Sept. 10, 1962], No. 34500/62. Heading HIT. A transformer or choke comprises a long inner core portion 1 of H-shaped laminations which is insulated with tape to act as a former for winding(s) 5 and is held to outer stack of rectangular laminations 7 by bolts 10, the laminations of the inner and/or outer core portion being embossed or indented as described in Specification 1,044,525.
Patent GB-826314-A (GB)
Title: Artificial legs
IPC: A61F2/68
Filed: 1957-11-05
Abstract: 826,314. Dashpots. MAUCH, H. A. Nov. 5, 1957 [Nov. 5, 1956], No. 34520/57. Class 108(3) [Also in Group VI] A dashpot connected between the shank and thigh of an artificial leg includes a fluid containing housing and means for displacing the fluid in the housing through channels in the housing wall, the channels being so arranged that there is graduated resistance to flow of fluid caused by the displacing means. The hollow shank 2 is connected directly to the thigh 1 by a bolt 4 and through a dashpot 7 to a pivot pin 8 in the thigh 1 parallel to, and ahead of or behind the bolt 4. The dashpot 7 includes a cylinder 10 partially filled with liquid and pivotally connected to a bracket 9 in the shank 2. A housing 16 filled with the same liquid is contained within and spaced from the cylinder 10. A piston rod 38 is connected to the pivot pin 8 and carries pistons 40, 39 movable within the housing 16 and the cylinder 10 respectively. A bushing 26 within the housing 16 has holes 47, 48 towards each end, channels 49, 50 in the bushing wall connecting the holes 47, 48 with chambers 33, 25 at opposite ends of the bushing 26 respectively. Seals 37, 24 separate the chambers 33, 25 from the housing interior, the seals 37, 24 being deformable to allow fluid to flow in one direction only from the chambers 33, 25 into the housing. The housing 16 is closed by a cover 30 having an aperture for the passage of the piston rod 38 and threaded into the housing 16 above the bushing 26. The upper part of the bushing 26 is also threaded in the housing 16. The chambers 33, 25 are formed between the bushing 26 and the cover 30 and the bottom of the housing 16 respectively, the size of each chamber being adjustable by screwing the cover and/or the bushing into the housing by varying amounts. As the knee is flexed the piston rod 38 and pistons 39, 40 move downwardly relative to the cylinder 10 and the housing 16. Liquid in the cylinder 10 passes through apertures 45 in the cylinder piston 39. The housing piston 40 pushes liquid below it through holes 47 in the lower part of the bushing whence it flows upwardly through channels 49 into the chamber 33 and past the upper seal 37 into the housing above the piston 40. The holes are so arranged that the piston 40 passes them progressively in its downward travel so that the number of holes 47 open to the liquid decreases and thus the movement of the piston is increasingly damped as the knee approaches full flexion. Similarly, as the piston 40 is raised, its movement is increasingly damped as the knee approaches full extension, the holes 48 in the upper part of the housing being progressively passed by the piston 40. A relief vent 19 is provided between the housing 16 and the cylinder 10.
Patent GB-395355-A (GB)
Title: Improvements in and relating to heaters for liquids
IPC: A47J31/52
Filed: 1931-12-12
Abstract: 395,355. Clockwork and fluid actuation of switches. BROWN, W. S. F., Brewerswood House, Cranbrook, Kent. Dec. 12, 1931, No. 34524. [Class 38 (v).] In electric apparatus for boiling liquid at a prearranged time the heating circuit is closed by mechanical power, derived from a timepiece operating a laterally movable contact K and is broken by vertical movement of the contact piece when the liquid is discharged from the container. The clock B has a spindle M adapted to rotate at a prearranged time and carrying an arm N adapted at the commencement of rotation to force the member K into contact with the member L to close the circuit to the heater G. When the liquid is discharged the support E and contact K are raised and the arm N is released to sound an alarm or close a circuit to light a lamp or to maintain the liquid in the receiving vessel at the required temperature.