baber/WOPTO huggingface dataset:
Patent GB-434037-A (GB)
Title: Improvements in and relating to the manufacture of pure hydratopectin
IPC: C08B37/00
Filed: 1934-05-09
Abstract: Pectose-containing materials, such as apple pomaces or beet slices are hydrolyzed by treatment below 100 DEG  C. in a medium having a pH value between 4 and 5 to prevent decomposition of the pectin formed. Preferably, tartaric or citric acids, or an acid phosphate are employed to effect the hydrolysis.  The juices obtained are concentrated at about 50 DEG  C., the pH value not being allowed to fall below 3 and the pectin then precipitated by the addition of an alcohol mixture containing over 70 per cent of alcohol, to prevent the co-precipition of arabanes, galactones and other impurities.  The gel-like precipitate is drained and then dried by immersion in absolute alcohol.  The product is then heated at about 80 DEG  C. to eliminate this solvent, and then pulverized.
Patent GB-398460-A (GB)
Title: Improvements in and relating to the sterilising and cleaning of bottles and the like
IPC: A61L2/00
Filed: 1933-05-16
Abstract: 398,460. Bottle-washing machines. SEITZ.WERKE GES., Bad Kreuznach, Germany. May 16, 1933, No. 14189. Convention date, May 30, 1932. [Class 138 (i).] Bottles or like vessels, which are rotated about a horizontal or inclined axis, are filled with sterilizing fluid when in the lowermost positions and are emptied in 'their uppermost positions, and means are provided whereby any remaining fluid is removed from the vessels by means of a neutral gas supplied to the vessels in their uppermost positions. In the construction shown, a container a for sterilizing liquid is rotatably mounted on a horizontal axis and is adapted to receive bottles b fitted over pipes e The pipes are connected to a rotatable valve disc c, and each pipe in turn, as the container a rotates, is placed in communication with a fixed conduit f connected to a supply of sterilized air, whereby the bottles are freed from drops of liquid remaining after the bottles have been drained. A pipe h in communication with the atmosphere provides an outlet for surplus air.
Patent GB-529097-A (GB)
Title: Improvements relating to electric time-switches
IPC: H01H7/08
Filed: 1939-05-12
Abstract: 529,097. Retractive switches; retarding action of switches. C.A.V., Ltd., (formerly C.A.V.- BOSCH, Ltd.), and BEDGGOOD, V. May 12, 1939, No. 14194. [Class 38 (v) ] . A short-time switch, suitable for motorvehicle direction indicators, comprises a cam g rotatable by a handle-actuated spindle e to bring either of a pair of spring arms h carrying contacts i away from a stop o and into engagement with a fixed contact c, in which position the arm h is latched behind the shoulder m of one of a pair of pivoted catches k loaded by a common spring r which normally holds both catches against a stop p. A spring mechanism (not shown); wound by the handle-movement, returns the cam g and handle to the initial position at a pre-determined rate, the cam engaging a projection n and freeing the arm h near the end of its stroke. A friction clutch may be associated with the spring mechanism to allow a slight overrun of the handle. Spring- loaded, pivoted arms may replace the spring arms. The Provisional Specification refers also to a single movable and fixed contact.
Patent GB-861351-A (GB)
Title: Antibiotic compositions and methods of preparing them
IPC: A23L19/18
Filed: 1958-05-05
Abstract: Therapeutic compositions comprise a homogeneous admixture of a proteolytic enzyme and an antibiotic.  The enzyme may be chymotrypsin, streptokinase, or preferably trypsin and especially the highly-purified forms of these.  Examples given of antibiotics which are compatible with trypsin are, streptomycin, the penicillins, chloramphenicol, erythromycin, tetracycline, chlortetracycline, oxytetracycline and salts thereof.  The compositions may be in forms suitable for oral, buccal, or parenteral administration, for example as tablets, enteric coated tablets, capsules, injectable solutions and suspensions, together with compatible pharmaceutical excipients. The antibiotics may be present in their usual dosage ranges whereas the amount of enzyme may be varied, depending on the particular pharmaceutical form.  For example, a buccally administrable form may contain per therapeutic dose of antibiotic 1 to 10 (preferably 5) mg. of trypsin, enteric forms 10 to 40 (preferably 20) mg., a parenteral injection 2.5 to 10 (preferably 5) mg.  Aqueous compositions may also contain a substance which protects the enzyme from self-digestion, for example, gelatine, the ratio of gelatine to trypsin being from 3 : 1 to 10 : 1 by weight.  Preparations for injection may also be prepared in two separate portions, for example, lyophilized trypsin and a liquid preparation containing the antibiotic and other ingredients, or as a lyophilized preparation which gives an injectable solution on addition of water.
Patent GB-798077-A (GB)
Title: Improvements in or relating to universal couplings
Inventor: CHARLESWORTH THOMAS RICHARD
IPC: F16D3/68
Filed: 1955-05-18
Abstract: 798,077. Universal joints. LAYCOCK ENGINEERING, Ltd. July 25, 1956 [May 18, 1955], No. 14285/55. Class 80 (2). In a universal joint the intermediate member is connected to the driving and driven members through compressed rubber bushes having their axes disposed radially of the intermediate member. In one embodiment the intermediate member is of the known waveform type. In a second embodiment, Fig. 3, the intermediate member 19 comprises two elliptical parts 20 bolted together at 22 and carrying compressed rubber bushes 24 clamped to the driven member 28, and pins 34 secured in rubber bushes 36 bolted by housings 40 to the driving member 43 which may be an engine flywheel.
Patent GB-1017481-A (GB)
Title: Process for treating filler wires for welding aluminium
IPC: B23K35/28
Filed: 1964-04-07
Abstract: To reduce flaws in welds, tin is chemically deposited on and then dissolved from Al or Al alloy filler wires.  The wire is degreased, rinsed, pickled in a mixture of sulphuric and chromic acids, rinsed, tinned in a Na stannate solution, rinsed, detinned in a bath containing the pickling solution or nitric acid, rinsed, dried and slightly oxidized in water vapour or in an aqueous solution having a pH value greater than 7.  Tinning may also be carried out using an aqueous solution of stannous sulphate, 40% hydrofluoric acid residual lye of bisulphitic cellulose, b -naphthol and hydrolysed gelatine Al wires comprise either 3.57% Mg, 0.30% Mn, 0.24% Cr, 0.30% Fe, 0.11% Si, 0.085% Ti or 99.5% Al.
Patent GB-573593-A (GB)
Title: Improved process and apparatus for the recovery of metals from their ores
IPC: C22B1/10
Filed: 1942-10-12
Abstract: 573,593. Extracting iron and other metals. STANDARD OIL DEVELOPMENT CO. Oct. 12, 1942, No. 14301. Convention date, Aug. 1, 1941. [Classes 72 and 82 (i)] Metal compounds, including iron ores, are reduced to metal by suspending a divided compound in a vertically rising reducing gas in a zone maintained at a reduction temperature below that at which the metal becomes plastic, a sufficient velocity of the gas being maintained to prevent settling of the particles at the bottom of the zone and to cause the particles of the compound to move in a dispersion having the characteristics of a boiling liquid, the metal obtained being discharged from the zone. Reducing gas is introduced from a pipe 4 and manifold 3 through a grate 2 arranged at the bottom of a tower 1 connected at its upper end by a separator 5, having a gas outlet 6, to a tower 7 provided with an inlet 8 for the metal compound, e.g. ore, and also a pivoted flap 10 allowing access into the line 9. In operation, powdered ore is charged into the tower 7 and gas admitted through the manifold 3, the gas velocity being so regulated as to prevent settling on the grate 2 and keep the stream of suspended ore moving at a slow rate. When the ore has been reduced completely, the flap 10 is opened and the product passes into the line 9 from which it is withdrawn. Alternatively, it may be mixed with carbon from a conveyer 12 and the mixture is fed by a conveyer 13 into a chamber 14 where it is heated to 1100-1600‹ C. by the combustion of gas introduced through a pipe 15, the melted iron being removed through the pipe 16.
Patent GB-1470187-A (GB)
Title: Method and apparatus for purifying gas
IPC: B01J19/24
Filed: 1974-04-01
Abstract: 1470187 Removing impurities from gas; mixing projected streams HOECHST AG 1 April 1974 [3 April 1973] 14305/74 Headings BIB and B1C [Also in Division F4] Impurities (e.g. water, benzene) are removed from a gas by contacting the gas with evaporating inert liquified gas (e.g. N 2 ) whereby the impurities are cooled, condensed and frozen. The frozen impurities may subsequently be melted. A suitable apparatus comprises pressure vessel 3 having tangential inlets 2 and 4 for the introduction of the gas to be purified and the liquified gas respectively, purified gas outlet 7, baffles 5, 5a and heating jackets 6, 6a. As a safeguard against explosions the inlet 1 is provided with safety device 2 and all parts of the apparatus are earthed.
Patent GB-835792-A (GB)
Title: Improvements in or relating to resin coated sand
Inventor: ALLEN FRANK JOHN
IPC: C08L61/06
Filed: 1957-05-06
Abstract: A resin-coated sand, suitable for making metal-casting moulds, is prepared by mixing sand with a liquid phenol-formaldehyde resin, preferably a resol, adding a mixture of dry ground resins comprising a major proportion of a phenol-formaldehyde novolak resin and a minor proportion of a xylenol-formaldehyde novolak resin and a hardening agent for the resins, preferably hexamethylenetetramine, and mixing the combination to form the coated sand.  A lubricant, such as zinc stearate, oleic acid, dibutyl phthalate, and other wax-like or oil-like material or high boiling point esters, may be added to improve the free-flowing of the product and to improve the strength of the moulds.  This lubricant may be added to the sand-liquid resin mixture, or may be mixed with the dry resins prior to adding them to the sand, or to the prepared coated sand.  A preferred mixture is prepared by mixing 100 parts of sand with 1 part of a liquid resol and 3 parts of a dry ground mixture consisting of 75 parts of a phenol-formaldehyde novolak resin, 25 parts of a xylenol-formaldehyde novolak resin, and 15 parts of hexamethylenetetramine.  0.05 parts of lubricant may also be added.ALSO:A resin-coated sand, suitable for making metal-casting moulds, is prepared by mixing sand with a liquid phenol-formaldehyde resin, preferably a resol, adding a mixture of dry ground resins comprising a major proportion of a phenol-formaldehyde novolak resin and a minor proportion of a xylenolformaldehyde novolak resin, and a hardening agent, preferably hexamethylenetetramine, and mixing the combination to form the coated sand.  A lubricant, such as zinc stearate, oleic acid, dibutyl phthalate, and other wax-like or oil-like materials or high-boiling-point esters, may be added to improve the free-flowing of the product and to improve the strength of the mould.  The lubricant may be added to the sand-liquid resin mixture, or to the dry resins prior to adding them to the sand, or to the coated sand. A preferred mixture is prepared by mixing 100 parts of sand with 1 part of a liquid resol and 3 parts of a dry ground mixture consisting of 75 parts of a phenol-formaldehyde novolak resin, 25 parts of a xylenolformaldehyde novolak resin, and 15 parts of hexamethylenetetramine.  0.05 part of lubricant may also be added.
Patent GB-1081461-A (GB)
Title: Improvements relating to thermoplastic sheet materials
Inventor: BODY RONALD ALISTAIR FREDERICK
IPC: C08J9/34
Filed: 1964-04-08
Abstract: A method of making thermoplastic sheet material comprises making sheeting of a thermoplastic synthetic resin composition incorporating a blowing agent, adhering this sheet to a carrier sheet by means of an adhesive composition, heating the assembly sufficiently to decompose the blowing agent to form a cellular thermoplastic layer and to convert the adhesive layer into a hard clear layer so that on stripping the product incorporating the layer derived from the adhesive composition from the carrier sheet the said layer acts as a wearing surface in the product.  The adhesive layer may also contain a blowing agent.  A non-cellular p  layer of thermoplastic synthetic resin may be laminated to the cellular layer.  A reinforcing fabric e.g. of non woven viscose fibres bonded by polyvinyl chloride layer may be included in the assembly e.g. between the adhesive layer and the layer to be foamed.  Specified carrier sheets are an endless steel belt, a release paper and a release fabric.  The specified adhesive is a polyvinyl chloride plastisol.  Specified thermoplastic resin compositions are polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate and copolymers of vinyl chloride and vinylidene chloride.  The adhesive composition may be applied to the carrier by roller, doctor blade or spraying apparatus.
Patent GB-295088-A (GB)
Title: Improvements in tools for scaling boilers and for like uses
IPC: F28G3/10
Filed: 1927-05-30
Abstract: 295,088. Sanders, G., and Jones, E. May 30, 1927. Cleaning internally, rotary appliances for.-A rotary device for boiler cleaning &c. in which members s are so pivoted that they fly out beyond the periphery of a disc w, has this disc recessed to house a ball bearing m which is arranged in the same plane as the strikers s. The rotating head is mounted on a shaft b arranged within a sleeve i which carries, the ball bearing. The peripheral portions of the head are of substantial mass to give a fly-wheel effect. In a modification shown in Fig. 5, an emery wheel is mounted to one side of the ball bearing.
Patent GB-559032-A (GB)
Title: Stamping machine for rolled material
IPC: B44B5/00
Filed: 1942-10-16
Abstract: 559,032. Embossing. LOEWY ENGINEERING CO., Ltd., and WUTSCHER, T. Oct. 16, 1942, No. 14481. [Class 83 (iv)] Relates to embossing machines for marking material issuing from a rolling-mill and consists in means whereby one set of dies may be changed whilst another is in operation. The machine includes a driven roller 11 interposed in the roller table of the mill and over which the bar &c. A passes. A standard formed as a cylinder 12 acts as guide for a sleeve 14 connected at 15 to the piston 13 provided with an extension 13' housing return springs 20. Two or more stop shafts 17 projecting from a ring 16 jounalled on the sleeve carry rollers 18 recessed to receive the dies 19. On admission of fluid pressure to the cylinder the roller over the bar is forced down and is driven frictionally by the bar which it marks at intervals. Dies at an idle station may be changed ready for a change in the rolled product. The ring 16 has an index bolt that engages taper holes in the sleeve 14. For automatic operation the bar A can actuate means controlling the valve.
Patent GB-666761-A (GB)
Title: Improvements in compressors
IPC: F04D21/00
Filed: 1946-05-14
Abstract: 666,761. Centrifugal and axial-flow compressors. STALKER, E. A. May 14, 1946 [Oct. 23, 1945], No. 14523/46. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 15, 1946]. Class 110(i) A compressor comprises a rotor having passages with converging and diverging portions, and means are provided to give the working fluid a velocity having a component opposite to the direction of rotation of the rotor before entering the passages; the discharge passes to stationary diverging passages. The rotor 21, Fig. 1, and a centrifugal impeller 17 are connected by planetary gearing 35, 23, 39 to rotate in opposite directions. The impeller 17 has a substantially axial discharge, and the compressed air leaving it has a supersonic velocity relative to the rotor 21. The convergent portions A, Fig. 3, of the rotor passages 51 reduce the velocity to that of sound at the throat B. Further reduction occurs in the divergent portions. To reduce separation of the boundary layer from the walls of the passages, the inner wall 55 is straight and the outer wall is curved so the centrifugal force tends to force the air against it. The boundary layer air is bled off through holes 59. Separation may also be opposed by introducing compressed air :from the scroll 65 into the rotor passages by way of a number of pipes 62, an annular cavity 64. and holes (not shown) drilled in the shroud ring 57. The air is finally discharged by way of stationary diffuser passages 61 to the scroll 65. Every third blade 43a, Fig. 5, of the impeller 17 is of full length, with medium length blades 43b and short blades 43c following in succession. Annular partitions 70, Fig. 1, form labyrinth seals to reduce leakage and also to reduce windage losses by restricting windage circulation to pockets 72. High pressure air introduced by way of pipe 84 to an annulus 80 prevents leakage of oil from a ball-bearing 13 towards a labyrinth seal 82; some of the air passes by way of a duct 88 to scavenge an oil slinger reservoir 29. Oil supplied by way of an inlet port 94 passes by way of suitable ducts drilled in stationary shaft 7, bolts 25 and sleeves 27 and 96 to bearings 13, 15, 19 and the planetary gears, and returns by way of an exit port 92 to a vented oil tank. Bearing 32 is served by a similar lubricating and sealing system. In a further embodiment, Fig. 6, the centrifugal impeller 17 is replaced by an axial-flow impeller 102, and the required direction of fluid flow at entry to the rotor 100 is imparted by guide blades 120 which are adjustable by rotating a ring 130. In a simplified construction the guide vanes are fixed.
Patent GB-378120-A (GB)
Title: Improvements in two-stroke-cycle internal combustion engines
IPC: F02B25/18
Filed: 1931-05-19
Abstract: 378,120. Cylinders. BURTON, J., Craylands, Allesley, near Coventry. May 19, 1931, No. 14714. [Classes 7 (ii) and 7 (iii).] In a two-stroke cylinder having opposed inlet and exhaust ports 7, 5 a pocket 2 is formed by an extension of the cylinder head on the exhaust side. The bottom of the pocket may be directed upwardly, as shown, horizontally, or downwardly, and a socket is located at 6 for the sparking-plug or the liquid fuel injection valve.
Patent GB-849661-A (GB)
Title: Improvements in or relating to electric immersion heaters
IPC: H05B1/02
Filed: 1956-05-11
Abstract: 849,661. Thermal switches. THOMPSON & CO. (SUNBURY) Ltd., R. E., and BENFORD, P. R. June 20, 1957 [May 11, 1956], No. 14725/56. Class 38 (5). [Also in Group XI] An immersion heater has a heating element 6 attached to a head 2 containing a thermostat 1 which is in heatexchanging relation with the tank in which the heater is fitted, with the surrounding medium and with an auxiliary heater 7 which may be switched in remotely. When the heater 7 is energized it causes the thermostat to open at a lower liquid temperature. Two or more auxiliary heaters may be switched in steps to provide several operating temperatures, or the heater may be controlled by a rheostat.
Patent GB-237695-A (GB)
Title: Improvements in or relating to proof press for multicolor work
IPC: B41F3/30
Filed: 1924-06-18
Abstract: 237,695. Barker, R. W., (American Bank Note Co.). June 18, 1924. Cylinder off-set machines; tripping- arrangements. - A proof press, primarily adapted to assist in the designing of multi-colour sectional line prints to produce safety tints in the printing of cheques &c., is constructed as a travelling-cylinder offset press, comprising an offset cylinder 17, Figs. 1 and 3, mounted in a carriage 30 guided by under-rollers 38 and tracks 37, and adapted to be traversed over a bed 12, on which are a number of plate-holders A, Fig. 6, and a platen 13 whereon is placed a sheet to receive the design picked up by the roller 17 from the plates secured in the holders A. The cylinder 17 is formed with bearing-rings 18, 19 moving on tracks 14, 15, and is mounted on a hollow shaft' 20 with reduced arbors 21, 22 mounted in eccentric bushes 23, 24 in sliding bearings 28 depressed by screws 32 against the action of springs 31. The eccentric bushes are rotatable to trip the impression by cranks on a tubular shaft 61 geared to a hand-crank 68 for hand operation, and also to a sector 69 connected t'o a rod 70 which is operated by a buffer 73 to throw the offset cylinder into operation automatically. The carriage 30 can be traversed by driving the cylinder 17 by hand-operated gear actuated by a handle 60, or the machine may be driven by a motor 49 geared to a shaft 43 extending the whole length of the bed. To the shaft 43 is splined a worm 45 geared to a worm-wheel 39 which can be coupled to the sleeve 21 by a coupling 40 splined to the sleeve and axially adjustable by a washer 41 and an enlarged head of an inner rod 26 which is operated by a screw and nut' 27 when the wheel 39 is to be connected to the sleeve 21. The shaft 43 is supported at spaced intervals by swinging counterweighted yoke supports 46 which yield to permit traverse of the carriage 30, and return automatically to position. The shaft 43 is reversed automatically by a controller 50 operated by a rod 53 with adjustable collars 55, 56 to be engaged by a yoke 54 on the carriage. The rod 53 may be hand-operated. Printing-surfaces.-The holders A, Fig. 6, for the printing-plates are formed with raised tracks 75, 76 for guiding hand-operated inking-rollers which are moved over the plates to ink same, several rollers being used if desired to ink adjacent strips in different colours. The plates rest on square blocks 79 and oblong blocks 80 fitted in a circular opening in the part 24 of the holder A, and are held in place by six clamps 82 adjustable in guideways 81 formed between the blocks 79, 80, and a segmental fitting 77 with a rectangular opening 78. The blocks are also kept in place by spring fittings 86, 87. The platesecuring means are angularly adjustable and a scale is provided to allow the plates to be set at various angles. The holders A are secured to the bed by screws 85, and the distance apart is such that the roller 17 picks up the parts of a complete design in correct register.
Patent GB-251460-A (GB)
Title: Improvements relating to bridging for joists and rafters
IPC: E04C3/02
Filed: 1925-06-06
Abstract: 251,460. Whiteside, J. M. June 6, 1925. Joist floors; roofs.-Metal bridging for joists and rafters in floors and roofs is made with a flat portion or cradle 3 extending beneath and nailed to a joist, and one or two oblique portions 5 the upper ends of which lie flat against and are nailed to adjacent joists. Fig. 4 shows a blank from which the metal members are made. The oblique portions may be flanged, channelled or fluted. In a modification, the flat part 3 is bent up for a short distance on one or both sides of a joist. Specification 207,423 is referred to.