baber/WOPTO huggingface dataset:
Patent GB-205193-A (GB)
Title: Improvements in boiler cleaners
IPC: F28G3/16
Filed: 1922-07-12
Abstract: 205,193. Marks, E. C. R., (Diamond Power Specialty Co.). July 12, 1922. Cleaning, fluid-pressure processes for.-Relates to boiler cleaners of the kind in which a rotatable blower tube discharges jets of steam or other fluid over the boiler interior, the fluid supply being controlled by a valve operated by the rotation of the blower tube. According to the invention, this valve 6 is operated by a cam 13, Figs. 3, 4, 4<A>, which may be mounted on the blower-tube 1, rotatable through reduction gearing 9<a>, 11, by a chain passing over the sheave 9. The flexiblymounted spring-pressed trigger 29 is moved up and down as the cam is rotated, to act against the stem 30 of the valve 6 and so control the admission of steam. During rotation of the cam from point 28 to point 44, the valve is gradually opened and is thereafter maintained fully open through approximately 360‹ while the trigger travels up a slight incline 45 and is deflected to one side by the inclined part 47 of the rib 48. This rib 48 holds the trigger on to the cam portion 46 until it reaches the point 49 when it springs back on the portion 44 of the cam. The valve 6 may then be closed by rotating the blower-tube in the reverse direction, when the trigger is deflected by the incline 51 on to the part 28<1> to allow the valve stem 30 to rise gradually. By suitably designing the cam 13 the angle of rotation through which the valve 6 is maintained open may be varied. The outer end of the blower tube is floatingly supported in a bracket 7 mounted on the front wall 2 of the boiler so as to permit relative movement due to differences of expansion. A thrust bearing 25 in this bracket takes the end pressure on the blower-tube, of the entering steam. In order to give a warning should the steam valve be left open any time, a whistle 52 is arranged in the goose-neck 5 between the steam valve 6 and the blower tube 1.
Patent GB-237437-A (GB)
Title: Improvements in weighing scales
IPC: G01G23/00
Filed: 1924-08-13
Abstract: 237,437. Marks, E. C. R., (Toledo Scale Co.). Aug. 13, 1924. Casings.-In a weighing-scale frame built up of connected parts, the surfaces of the parts are separated to prevent chipping of the vitreous coating with which one at least of the parts is provided. As shown in Figs. 1 and 3, the upright housing 2 is separated from the base housing 1 and from the chart housing 3, all of which are finished in porcelain enamel, or other vitreous coatings, by means of machined pads 10, which are hidden to a great extent by the rounded edges 11 of the feet 9. The disc-shaped end' plates 56 of the chart housing 3 are insulated therefrom by rubber gaskets of triangular cross-section. The joints between the connecting tubes 12 and the housings 2, 3 are formed by nickel-plated, split ferrules 13, Fig. 5, which are provided with swelled portions 14 to conceal the joints. Cupped flexible washers 75 are interposed between the nuts 74 and the enamelled surface.
Patent GB-742423-A (GB)
Title: Means for deflecting fluid jets
Inventor: LOUIS MARIE GABRIELLE DE LA SA
IPC: F02K1/56
Filed: 1953-07-10
Abstract: 742,423. Controlling aircraft. SOC. NATION ALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. July 10, 1953 [July 15, 1952], No. 19257/53. Addition to 696,088. Class 4. [Also in Group XXVI] A modification of an arrangement for deflecting a fluid jet in accordance with the parent Specification, in which the discharge nozzle is combined with a deflecting arrangement comprising a grid of curved baffles, is characterized in that the said nozzle has a convergent portion which is followed by a coaxial end portion of uniform cross-section beyond said convergent portion, said end portion comprising a wall adjacent and substantially parallel to said grid of baffles and formed of a ruled surface defined by straight lines parallel to the axis of said nozzle. In prior constructions the controlling or deflecting arrangement is associated with a convergent-divergent nozzle and the angle of the cone of ejected gases varies with the exhaust velocity so that under some conditions the undeflected gases impinge on the deflector baffles. In the present construction the jet pipe comprises a convergent portion 7 between points A, C and a short parallel portion 6 between the points C, B, the length l being approximately <SP>1</SP>/ 10  of the width or diameter d. By this means the undeflected streamlines of the exhaust gases will be parallel to the longitudinal axis of the jet pipe, thus enabling the deflector baffles 5 to be made parallel to this axis without risk of interference with the stream of gas. Deflector plates 4 are located in a housing 3.
Patent GB-1106075-A (GB)
Title: Improvements in and relating to high pressure vessels
Inventor: CIECHOWSKI FRANCISZEK
IPC: B01J3/00
Filed: 1964-05-08
Abstract: <PICT:1106075/C6-C7/1> A method for protecting against corrosion the internal surfaces of a pressure vessel having an end-closure lid 2, e.g. a vessel for a urea synthesis process, comprises forming in the wall 1 of the vessel near its closure joint an annular step 6a, covering the surface up to the step with a shell-lining 7 of corrosion resistant metal, placing in the step 6a a load-ring 6b extending inwards towards the vessel axis, uniting the shell lining with the load-ring, fabricating an end-lining 12, 14 to cover the internal surface of the closure lid 2 and uniting the end-lining 12, 14 with the load-ring 6b.  As shown, there is an inlet opening 13 in the closure lid 2.  The parts of the lining can be united by soldering brazing or welding.  Suitable linings are of stainless steel and Ni alloys.  Fig. 1 illustrates the top closure of a vessel and Fig. 3 (not shown) the bottom closure.
Patent GB-1078923-A (GB)
Title: Steel rod rolling mill
IPC: B21B31/02
Filed: 1965-05-07
Abstract: 1,078,923. Rolling. VERWALTUNGSGESELLSCHAFT MOELLER UND NEUMANN OFFENE HANDELSGESELLSCHAFT. May 7, 1965 [May 11, 1964], No. 19338/65. Heading B3M. A steel rod rolling mill having two rolling lines 1, 2 comprises two continuous breakdown stages 3, 4, Fig. 1, having horizontal-vertical frames, intermediate stages 5, 6, 7, and one core finishing stages 9, 10. Stages 6, 7 have frames which can be displaced from one rolling line to the other. In operation, stages 3, 4 are supplied from two furnaces, or from a common furnace, with two ejector openings. The rod from stage 3 is fed to stage 5 through a deflector guide 8, and both rods are rolled on a two-core basis in stages 5-7, and then they are separated and pass through single core stages 9 and 10. In a modification, Fig. 2, half of the frames in stage 7 are displaced, so that this stage provides single core working. In a further modification, half of the frames in stage 6 are also displaced. In a still further modification, each rolling line passes through all of the stages in a single core operation. Each line 1 and 2 may be independently driven.
Patent GB-1166386-A (GB)
Title: Improvements relating to Hop Products
Inventor: WOLTON DAVID ALEXANDER
IPC: C12C3/00
Filed: 1967-04-27
Abstract: 1,166,386. Comminuting hops. WOLTON HOP EXTRACTS Ltd. 24 April, 1968 [27 April, 1967], No. 19397/67. Addition to 1,082,726. Heading B2A. '[Also in Division C6] The process for the production from hop material of a hop extract having a high lupulin content described and claimed in Specification No. 1,082,726 is improved or modified by cooling the hop material to a temperature between 0‹ and -50‹C by contact with a normally gaseous inert refrigerant in the solid or liquid phase (liquid nitrogen, or liquid or solid carbon dioxide) prior to the mechanical disintegration and screening. The refrigerant is directed towards or on to the hop material, which is blanketed by the gas produced by vaporisation of the refrigerant at least up to and during the disintegration step. At least part of the refrigerant gas may be withdrawn after the disintegration or screening stages for recycling to a point between the cooling and disintegration stages. The cooling may be done on a belt conveyer or in a rotatable drum provided with a removable cover at its input end and a large mesh screen at its output end. It is stated that lupulin-rich material may be added directly to malt extract.
Patent GB-584979-A (GB)
Title: Improvements in or relating to electric attenuators
IPC: H03H7/24
Filed: 1944-10-10
Abstract: 584,979. Electric attenuators. LOWE, A. C. BOWYER-, PEACH, E. R., and PYE, Ltd. Oct. 10, 1944, No. 19443. [Class 40 (iii)] An electric attenuator having a resistance network comprising a number of sections connected in series, each section formed by a series resistance and a shunt resistance and having a switch for selecting one or more sections of the network, is such that the network resistances are enclosed in a metallic casing partitioned by metallic screens to form a series of compartments which house the shunt resistances, and the series resistances are arranged to pass through the screening partitions, but insulated therefrom, so that the ends of each series resistance are disposed in adjacent compartments on opposite sides of the intervening partitioning screen. The compartments 9 are formed by walls 10 extending from a central recessed boss 6 integral with a baseplate 1 and having a wall 5 to which a cover 2 is attached. The series resistances R2 ... R5 pass through open-ended slots which are closed by plates. 14 and their ends are secured to metal clips 12 attached to the wall 5 by insulating blocks 11. The shunt resistances R6 ... R10 have their upper ends attached to clips 18 and their lower ends supported by the surface of recesses 17 in the portion 16 of the base. The clips 12, 18 are electrically connected by contact studs 19 engaged by a curved contact strip 22 mounted on pins 23 on a head 24 rotatable by a spindle 25. The strip'22 is retained in a central position opposite the corresponding stud 19 by spring-pressed balls 33 engaging radial grooves 32 in a metal disc 30 secured to the head 24. The contact strip 22 is connected by a biassing spring 26 and a metal strip 28 to a stud 29 engaging a disc 36 connected by a strip 37 and conductor 40 to one conductor of the output socket 39, the second conductor being connected to the socket and the casing. The contact stud 19 engaged by the strip 22 is screened from other contact studs by a metal screen 31' mounted on the head 24 and arranged to engage the arms of a stop member 34. The input conductors are connected respectively to the casing and to a clip 12a associated with resistances R2, R6 and an alternative position for the input socket 41 is closed by a plug 43. During movement between the studs 19, the pick-up contact 22 is short-circuited to the casing by engagement with the wall 5 under action of the spring 26.
Patent GB-256643-A (GB)
Title: Improvements in or relating to processes for the purification of waste gases
IPC: C22B7/02
Filed: 1926-08-06
Abstract: 256,643. Krupp Grusonwerk Akt.- Ges., F. Aug. 7, 1925, [Convention date]. Charging.-The carbon and impurities in the gases leaving a furnace for the volatilization of metals or metal compounds are removed before the gases are submitted to further treatment by passing the gases from the furnace 1 into a flue 2 where they are subjected to an auxiliary heating device 3 to effect combustion of the carbon. Impurities deposited in the flue slide down a plate 4 to a conveyer 5 which delivers them through an outlet 6 to an elevator 7. The latter returns the impurities with fresh material to the charging device 9 of the furnace.
Patent GB-1105596-A (GB)
Title: Improvements relating to multifilament yarns
IPC: D01F6/72
Filed: 1966-05-03
Abstract: A coalesced multifilament yarn comprises groups of filaments coalesced together, the average force required to separate the individual filaments from one another being at least 45 milligrams, the groups also being coalesced together, the average force required to separate the groups from one another being between 20 and 50 milligrams and not more than two thirds of the average force required to separate the filaments.  In one example spandex filaments are dry spun and then are passed in groups through a plurality of false-twist gas jets, with the twist running back in each group of filaments to a point in the spining cell where the filaments are sufficiently tacky to form the required degree of cohesion.  The groups are then forwarded to a guide or further false-twist gas jet where the groups coalesce together, and then in turn to a first feed roll, lubricant applicator, second feed roll and winding apparatus.  The yarn may be stretched or relaxed between the feed rolls.  In a modification the spinning orifices are arranged in spaced groups and there is only one false-twist jet, the twist within a group of filaments, running back into the cell, but the twist between the groups of filaments not running back so far.  The degree of cohesion within a group may vary from group to group.  In other modifications the filaments may be wet spun, the groups of filaments may be coalesced together by treatment with a plasticizer or solvent by means of a wick, bath or roller, with the groups being brought together by a guide or slot, or the filaments may be of nylon, acrylonitrile polymers or cellulose acetate.  A spandex yarn may be knitted, or laid in to a knitted fabric, and during the fabrication process the groups of filaments partially separated from one another.
Patent GB-890911-A (GB)
Title: Improved apparatus for fixing vapour tackifiable particles
IPC: G03G15/20
Filed: 1958-06-19
Abstract: 890,911. Printing processes. KOLB, 0. K. (Haloid Co.). June 19, 1958, No. 19658/58. Class 100(2) [Also in Group XX] Apparatus for fixing a powder image on a carrier surface comprises a vapour chamber having a receptacle for a vaporizable substance, means for promoting vaporization of said substance, and an endless belt for passing a vapour chargeable member attached thereto through the chamber to a location outside the chamber where it is contacted with the powder image to be fixed. As shown, a porous web 60 on two endless perforated bands 61 is fed round rollers 31, 38 by means of a pin wheel 50 so that it passes through the vapour chamber 10. The vaporization of solvent 28 in receptacle 23 is assisted by wicks 25, 26 and the time of passage of the web is such as to allow it to attain equilibrium in the vapour. The vapour laden web is then passed over plate 58 where it is contacted with the image to be fixed. The image carrier surface may be contacted with the web by means of a belt 70 which passes round rollers 71, 72.
Patent GB-491348-A (GB)
Title: Improvements in or relating to umbilical cord clamps
IPC: A61B17/12
Filed: 1937-07-17
Abstract: 491,348. Umbilical clamps. REAVLEY, E. July 17, 1937, No. 19820. [Class 81 (ii)] A clamp for the umbilical cord of an infant comprises an indiarubber disc a of double convex or plano-convex form, having a central aperture b. In use the cord is gripped by forceps on which the disc has been threaded and the disc then pressed off the forceps to surround the cord. The disc is preferably ¥ in. in external and <1>/12 in. in internal diameter, and <3>/16 in. in maximum thickness. Specification 1738/94, [Class 81], is referred to.
Patent GB-748460-A (GB)
Title: Improvements in or relating to circuit arrangements for generating sawtooth currents
Inventor: BODDY RONALD JOSEPH
IPC: H03K4/28
Filed: 1953-07-17
Abstract: 748,460. Sawtooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 8, 1954 [July 17, 1953], No. 19827/53. Class 40 (6). In a sawtooth current generator of the " resonant return " type the H.T. supply for the driver valve is fed to an intermediate point on the primary winding of the output transformer and the damping valve is connected across a greater number of the primary turns than the driver valve. The driver valve 1 is fed with a sawtooth input wave and supplies the deflection coils 4 through a transformer 2, 3, the H.T. being supplied through the lower part only of the primary winding. The damping valve 5 is coupled across the whole of or at least a larger part of the winding. Negative feedback is applied to the damping valve through capacitor 14 and amplifier valve 13 and the time constant of capacitor 14 and resistor 17 may be such as to impose a falling sawtooth wave on the feedback voltage. Negative feedback is also provided by virtue of the fact that the lower part of the primary of the output transformer is in the grid cathode circuit of the damping valve. The amplitude of the output wave is adjusted by a potentiometer 20 which simultaneously adjusts the bias of both driver and damping valves. Potentiometer 18 is adjusted to ensure that the damping valve is always conducting. The input wave may alternatively be of pulse form, in which case the grid of the driver valve is coupled to the first anode of valve 13. In an alternative embodiment (Fig. 2, not shown) the feedback capacitor 14 is connected directly to the grid of the damper valve and cathode bias is provided for the damper valve so that adjust. ing the bias of the driver valve to adjust the output wave amplitude also adjusts the damper valve bias.
Patent GB-889765-A (GB)
Title: Synthesis of steroids
IPC: C07J75/00
Filed: 1958-06-20
Abstract: The invention comprises steroid compounds of the general formula <FORM:0889765/IV (b)/1> wherein the 1,2- and 6,7-positions are saturated or double bonded, R represents hydrogen and R1 represents a b -hydroxy group or R and R1 together represent a keto group, X and X1 represent hydrogen or a halogen at least one being hydrogen, Y and Y1 represent hydrogen or the methyl group, Z represents hydrogen or halogen, or a hydroxy or acyloxy group, and P and Q represent hydrogen or lower alkyl, monocyclic aromatic, monocyclic aromatic lower alkyl, monocyclic heterocyclic or monocyclic heterocyclic lower alkyl radical, or P and Q together represent an alkylene radical, and the preparation thereof by reacting a steroid compound of the general formula <FORM:0889765/IV (b)/2> wherein the 1,2- and 6,7-positions are saturated or double bonded, R, R1, X, X1, Y and Y1 have the above significance and Z1 represents hydrogen or a halogen or a hydroxy group, with a carbonyl reactant and, if desired, in the case where Z1 represents a hydroxy group acylating the product to form a product of the first general formula above in which Z represents an acyloxy group.  The lower alkyl radicals contain from 1 to 7 carbon atoms. The Specification refers to a large number of steroid and carbonyl reactants that may be used in the above process.  Detailed examples are given.  The 16a -hydroxy-steroid compounds of the second general formula above may be prepared by treating the corresponding 16-desoxy compounds with the oxygenating activity of the micro-organisms Streptomyces roseochromogenus.  12a  - Fluoro - d 4 - pregnene 11- 16b , a , 17a  - triol-3,20-dione is prepared by treating 16a -hydroxy - 12a  - fluoro - 11b  - hydroxy - progester - one with aluminium tertiary butylate and treating the resulting 12-fluoro-d 4,16-pregnadiene-11b -ol-3,20-dione with osmium tetroxide and decomposing the osmate ester formed.
Patent GB-573396-A (GB)
Title: Improvements in or relating to means for opening bales of fibres
IPC: D01G7/04
Filed: 1944-10-14
Abstract: 573,396. Opening bales of fibres. HUGHES, J., BULL, J., and CLOVER, CROFT, & STATE, Ltd. Oct. 14, 1944, No. 19881. [Class 120 (i)] Apparatus for opening bales of fibres has a series of parallel driven rollers 2, having spikes or teeth for combing or flaking fibres direct from bales and arranged above a power raised platform 1 which carries a plurality of bales and feeds them upwardly to the rollers. The rollers may be rotated at different speeds. The platform 1 is counterweighted and raised by chains carried by shafts 14 driven through one of three systems of gearing which give a slow upward movement, a downward movement at increased speed, or a quick lift until the bales make working contact with the rollers 2. The third system can only be held in gear manually ; the second is automatically brought into operation by an electric switch.
Patent GB-573108-A (GB)
Title: Improvements in or relating to electric soldering irons
IPC: B23K3/03
Filed: 1943-11-29
Abstract: 573,108. Electric soldering-irons. STANDARD TELEPHONES & CABLES, Ltd. (trading as STANELCO PRODUCTS), and HANDLEY, J. Nov. 29, 1943, No. 19885. [Class 39 (iii)] [Also in Group XXXVII] A thermostatically controlled soldering-,iron comprises a bit 1 clamped in a 'holder 3 which tapers towards the handle. Heating elements 4, 5 are held at the sides of the holder 3 by extensions 6, 7 of the two halves 8, 9 of a casing which are secured together by studs 12 projecting from the bit holder. The bit holder may be of copper, or aluminium for heat storage or light weight. The circuit (or a control circuit) includes contacts 19 carried by bimetallic strip 21, and 20 carried by a follow-up spring strip 22, which are closed below a predetermined temperature. On heating, strip 21 moves towards the bit holder, followed by strip 22 until the latter is retained by an adjustable stop 23, which may be set to determine the temperature at which the contacts open.
Patent GB-531100-A (GB)
Title: Improvements in and relating to injection moulding machines
IPC: B29C45/18
Filed: 1939-07-07
Abstract: 531,100. Injection-moulding machines. BRAUN AKT.-GES., F. July 7. 1939. No. 19888. Convention date, July 7, 1938. [Class 87 (ii)] In an injection-moulding machine, the charge to be admitted to the injection cylinder is controlled by weighing-mechanism. As shown, the supply hopper 7 discharges into a pan 2 on a beam 3 pivoted at 9, an adjustable weight 4 determining the weight of the charge required to tip the balance into the space 14. When the balance starts to tip, a curved shutter 5 closes the hopper 7, the charge, however, remaining in the pan 2 until a depending arm 6 is engaged by a headed rod 10 on a plunger 12 which is forced to the right along a cylinder by pneumatic pressure and is returned by a coil spring. The sequence of operations is controlled by a slide valve 21 in a cylinder, the ends of which are connected to air pressure or atmosphere by interconnected manually-operated valves 16, 17. When the valve 16 admits pressure to the pipe 20; the valve 21 slides to the right and opens a port 22 to admit air pressure behind a piston 24 on a rod 26 carrying a piston 15 which ejects the deposited charge into a shoot 27 leading to the injection cylinder 28. When the piston 24 reaches the end of its stroke, the port 29 is uncovered to pressure which is admitted through the passage 32, groove 34, and pipe 33 to the cylinder Z. The piston 35 is thus moved to the right and operates the injection plunger 36 with pressure which progressively increases by virtue of the toggle connection P, 53. The piston 35 carries a fork 42 which contacts, with lost motion, with stops 57, 43 on a sliding bar 44 carrying a rack 45 meshed with a pinion 46 on a shaft 47 carrying a rotary valve 48. Thus, if, for some reason, the cylinder 28 has been overcharged and the piston 35 prevented from advancing to its end position, the stop 43 will not be contacted and the valve 48 will remain closed. When pressure is admitted to the pipe 50, the valve 21 will move to the left and admit pressure, through the pipe 37, to the space 19, the piston 35 being thus moved to its extreme left position. The passage 49 will remain closed, however, so that the piston 24 will remain stationary and pressure will not be admitted to the piston 12 which ensures that the trip 10 will remain inactive and the pan 12 will not be emptied for the next injection stroke.