baber/WOPTO huggingface dataset:
Patent GB-1480837-A (GB)
Title: Linear motor winding
IPC: H02K41/025
Filed: 1974-07-01
Abstract: 1480837 Winding layouts for linear motors BBC BROWN BOVERI & CO Ltd 1 July 1974 [5 July 1973] 29169/74 Heading H2A A linear motor winding has every even numbered coil group omitted up to the (m - 1)<SP>th</SP> group and reconnected in the same order, phase and polarity at the end of the winding spaced by q slots from the last occupied slot, where p is the number of pole pairs, m is the number of phases and q is the number of slots per pole per phase. In the three-phase, four-pole machine shown, there are two slots/phase in each pole. In the group of twelve coil groups therefore, the second (m - 1)<SP>th2</SP> group is detached and reconnected at the end of the winding spaced by two slots (q). Since the winding shown is twolayer, slots 3, 4 thus become emptied and slots 8, 9 lose one conductor each. These are reconnected to the winding in slots 27, 28 and 32, 33 respectively and the phase windings are also rearranged, whilst retaining the same energization in the unchanged slots. The empty or half-empty slots are preferably filled with ferromagnetic material.
Patent GB-1309290-A (GB)
Title: Safety closures
IPC: B65D50/04
Filed: 1970-06-16
Abstract: 1309290 Safety closures C PETRONELLI and G M PARK 16 June 1970 [19 June 1969 28 Oct 1969] 29221/70 Heading B8T A child-proof closure comprises an inner cap 1 which screws on to or into a container and an outer ring 2 which fits over, is retained on and covers the cap 1. A clutch is provided having one part on the cap 1 and one on the ring 2 so that the cap 1 can only be unscrewed from the container when the ring 2 is moved to its axial limit in the axial direction of unscrewing. As shown, the inner cap has a groove 4 bounded by two ridges 5 and 6 which carry clutch surfaces 7, 13. The outer ring of a ridge 3 has clutch surfaces 8, 14 which co-operate with the clutch surfaces on the inner cap. The cap and ring are manufactured separately and are assembled whilst hot after release from the mould.
Patent GB-1515040-A (GB)
Title: Method of producing coated steel sheets
IPC: C23C24/08
Filed: 1976-07-14
Abstract: 1515040 Sintered Al coatings; electrodepositing zinc KAWASAKI STEEL CORP 14 July 1976 [19 July 1975] 29410/76 Headings C7B and C7D Steel sheet is coated with Al or Al alloy by coating the steel with Zn to a thickness of 0À01- 0À3Ám, applying Al or Al alloy powder to the Zncoated steel and subjecting to the steps of rolling (optional), heating, rolling, and heating again. In Examples the powder is applied as an aqueous suspension (Examples 1 - 3 and 5) or as a dry powder (Example 4), followed by drying, heating to 450C, rolling, and heating to 550 C (Examples 1, 3 and 4); drying, rolling, heating to 400C, or 450C, rolling and heating to 550C (Examples 2 and 5). The suspension may include as inhibitors, a carboxyl compound, organic oxygen containing compound or organic nitrogen containing compound, e.g. caprylic acid, succinic acid. The Zn coating is applied electrolytically (after electro-chemical cleaning in NaOH solution) in a bath containing zinc sulphate, ammonium chloride, aluminium sulphate, sodium acetate, and licorice.
Patent GB-685214-A (GB)
Title: Improved process and apparatus for the production of metallic magnesium
IPC: C22B26/22
Filed: 1949-11-17
Abstract: 685,214. Distilling magnesium. ESSEX AERO, Ltd., and MAILLARD, E. F. Nov. 13, 1950 [Nov. 17, 1949], No. 29433/49. Class 82(i) A process of producing magnesium consists in reacting magnesium oxide and carbon together, in the absence of air or other foreign gases, at a temperature between 900‹C and 1500‹C,. diffusing the vapours through a porous partition or a series of porous partitions so that by reason of the difference in density between magnesium vapour and carbon monoxide the mixture permeating the partition or each successive partition is richer in magnesium, and finally condensing the separated magnesium vapour to molten or crystalline form. The apparatus shown in Fig. 1 comprises a nest of consecutive permeable tubes providing a series of diffusion compartments B-J surrounding a reaction compartment A. Heating coils 16 maintain the apparatus at the desired temperature and an additional heater 17 in the chamber A provides heat necessary for the reaction. Reaction materials are fed in through hopper 14 and tandem valves 15 and carbon monoxide is removed from duct 20 and pump 21, a cool zone near the top of chamber A preventing removal of magnesium vapour through this duct. Gases entering each chamber are withdrawn to the preceding chamber by staggered ducts 18 and pumps 19. Magnesium vapour penetrating chamber J is condensed on the outer impermeable wall 10 and is collected in reception trough. 22. In a modification the diffusion compartments are provided by a series of partitions disposed across a tube having a reaction compartment at one end and a,condensing zone at the other. In the apparatus shown in Fig. 3, reaction chamber A is enclosed by partition 50 having a lower portion 501 of permeable material. The outer wall 51 and base 53 are heated by heating coils 54 in such a way as to provide a heated reactor zone in the lower half of the chamber A and a cooler zone in the upper half. Carbon monoxide in the vapours passing the porous partition recombines with magnesium in annular chamber Band collects in its base 60, from whence it is periodically returned to the reaction chamber. Excess uncombined magnesium condenses in the upper part of chamber B, runs into troughs 57 and 58 and is collected in receptacle 59.
Patent GB-702241-A (GB)
Title: Improvements in or relating to the production of oxygen-containing organic compoundsfrom carbon monoxide, hydrogen and olefins
IPC: C07C27/22
Filed: 1948-03-01
Abstract: Oxygenated compounds, particularly aldehydes, are prepared from an "olefin," including any compound containing ethylenic unsaturation, carbon monoxide, and hydrogen by OXO synthesis in the presence of a separately prepared cobalt carbonyl, passing the product or a liquid phase portion thereof through a catalyst recovery zone under conditions to decompose cobalt carbonyls to the metal, treating the metal with carbon monoxide in the presence of a liquid organic solvent to form a solution of cobalt carbonyl and using this as the OXO synthesis catalyst.  Carbon monoxide mixtures such as water gas may be used for the carbonyl production, the CO partial pressure being 20-300 atm. and the temperature within the range 30-250 but not 90-130 DEG C.  The solvent, which may be fed CO-or countercurrent with the CO gas, may be aromatic hydrocarbons, cycloparaffins, ethers, esters, alkanols or high boiling OXO products.  The cobalt recovery zone may contain a porous carrier and carbonyl decomposition is effective at, e.g. 120-250 DEG C.  Hydrogen may be present up to pressures of 200 atm. or more especially where conversion of aldehydes to alcohols is intended.  Alternatively a cobalt compound may be present in the recovery zone.  In addition to acyclic monolefins, polyenes such as butadiene, cyclic olefins, e.g. cyclopentene, cyclohexene, and styrene, and ethylenic compounds, e.g. vinyl acetate and chloride, may be used.  In an example, propylene is reacted using a xylene solution of cobalt carbonyl.  Specifications 702,221 and 702,222 are referred to.
Patent GB-534756-A (GB)
Title: Improvements in method and apparatus for casting metals
IPC: B22D11/14
Filed: 1939-11-09
Abstract: 534,756. Casting-machines. WILLIAMS, E. R. Nov. 9, 1939, No. 29758. Convention date, Feb. 2. [Class 83 (i)] Moulds; castings.-In casting ingots &c. of definite length or continuous lengths of metal in a jacketed mould, e.g. as described in Specification 489,568, the necessary rapid flow of water or other coolant through the jacket is obtained or assisted by a suction pump 27, thus avoiding distortion of the thin copper or brass mould wall 10 by high pressure fluid. When a bottomless mould is used the rolls 20 for withdrawing the continuous product may be arranged to apply sufficient pressure to reduce the cross section and thus reduce porosity or piping. The spacing members 13, Fig. 3, may be integral with the mould wall 10 or with the casing 11 or be separate from both. The casing may be in one piece or split at 30.
Patent GB-243732-A (GB)
Title: Improvements in apparatus for heating and delivering air
IPC: F28D1/02
Filed: 1925-11-25
Abstract: 243,732. Soc. Anon. des Etablissements Olivet et Mazars. Nov. 29, 1924, [Convention date]. With conical discharge.-The centrifugal fan E of air heating apparatus comprises upper and lower discs between which the blades are secured and which are concave as seen from below, so that the stream of air is projected as a cone, the generating line of which is inclined at from 10 to 45‹ to the horizontal.
Patent GB-739311-A (GB)
Title: Improvements in textile carding machinery
Inventor: STEWART WILLIAM RENNIE
IPC: D01G15/92
Filed: 1953-10-28
Abstract: 739,311. Staves for carding machines. STEWART & SONS (HACKLEMAKERS), Ltd., W. R. Oct. 19, 1954 [Oct. 28. 1953], No. 29808(53. Class 120(1). Pinned staves 1 for carding machines for bast and artificial fibres are made of a light metal or alloy and shaped to interlock with adjacent similarly shaped staves. The staves may be extruded and the interlocking may be effected by a mortice, dovetail or similar arrangement. Preferably each portion is formed with a square step adjoining a sloping portion, as at 2. If desired, instead of attaching the staves to solid rollers, they may be attached to narrow bosses 7 secured to a shaft 8.
Patent GB-874859-A (GB)
Title: Process for the production of foam materials containing urethane groups
IPC: C08G18/42
Filed: 1959-09-01
Abstract: A polyester of acid number below 15 containing 2%-15% by condensation relative to the alcohol used for the polyester, of a polypropylene glycol ether of molecular weight 500 to 1,750, is reacted with a polyisocyanate and water to give cellular polyurethanes.  Lists of suitable components are given, and other ingredients listed are tertiary amine catalysts, emulsifiers, and pore controllers, e.g. silicone oils.  Specifications 843,841 and 867,156 are referred to.ALSO:A polyester of acid number below 15 containing 2-15%, by condensation, relative to the alcohol used for the polyester, of a polypropylene glycol ether of molecular weight 500 to 1750, is reacted with a polyisocyanate and water to give cellular polyurethanes.  Lists of suitable components are given and other ingredients listed are tertiary amine catalysts, emulsifiers and pore controllers, e.g. silicone oils.  Specifications 843,841 and 867,156 are referred to.
Patent GB-302464-A (GB)
Title: Improvements in spare wheel carriers for motor vehicles
IPC: B62D43/04
Filed: 1927-11-08
Abstract: 302,464. Reed, T., (trading as Reed & Son, T. J.), a.nd Brown, J. Nov. 8, 1927. Mounting spare wheels on vehicles.-A spare wheel carrier for heavy motor-vehicles comprises a grid or frame e, Fig. 3, adapted to carry the wheel and slidably mounted on guide rails a, which are suspended beneath the rear &c. of the vehicle, as by cross bearers b and straps c secured to the chassis d, the grid e, when the wheel is to be removed, being drawn out in the manner of a drawer, and its outer end rested upon the ground, as shown in Fig. 4. The grid e comprises parallel side members connected by crossbars f, pivoted to a central one of which is an eye-bolt g adapted to project through the centre of the wheel, the boss of which is engaged by a clamping-bar h secured by a fly-nut i. Complete disengagement of the grid e from the guide rails a is prevented by a pivoted hook m adapted to drop into engagement with the outer cross bearer b. In the normal position, the outer end of the grid e is secured to the outer ends of the rails a by detachable bolts.
Patent GB-224386-A (GB)
Title: Improvements in or relating to pattern printing machines for carpets and the like
IPC: B41F17/00
Filed: 1923-11-27
Abstract: 224,386. Thomson, A., and Thomson, Shepherd, & Co., Ltd. Nov. 27, 1923. Rotary machines. - Machines for printing a continuous pattern on carpets or the like are provided with means for producing gaps in the printing at predetermined intervals, for the purpose of providing the carpets with blank end borders which can be printed separately after t,he carpets are cut. The means for producing the gaps consist of strips d of suitable screening material attached to a continuously circulated endless chain or chains a so as to be interposed at intervals, corresponding to the desired length of each carpet between the carpet and the printing-rollers e, e<1>, the width of the strips being double that of the desired border. The endless chains a pass over sprocket wheels b, h, c and are circulated by the wheels b which are secured to the ende of the printing-roller e<1>, the wheels h being freely mounted on the shaft of the printing-roller e. The strips d are cleaned by water from a pipe g, the end of which is situated near the lower part of the. path of the strips. The wheels c are adjustably mounted so as to allow the length of the chain a to be varied.
Patent GB-462483-A (GB)
Title: Improved gun mountings for aircraft
IPC: F41A27/18
Filed: 1935-10-30
Abstract: 462,483. Fluid - pressure servomotorcontrol systems. HISCOCKS, S. W., and HUGHES, H. A. Oct. 30, 1935, No. 29912. [Class 135] [Also in Groups XXI and XXXIII] A gun - elevating fluid - pressure servomotor 8 provided with a follow - up mechanism is arranged for correspondence control from a hand lever 41. The control is effected through a piston slide valve 34, 35 moving with respect to ports 30, 31, 32 in a sliding sleeve 29 connected to the piston in the cylinder 8 by a lever 37 and link 36. Pressure is supplied to the interior of the piston valve by a pipe 40 leading to a port 27, and ports 26, 28 connect with each end of the power cylinder 8.
Patent GB-682877-A (GB)
Title: Improvements in and relating to fuel ignition systems
IPC: F02P15/00
Filed: 1949-11-22
Abstract: 682,877. Ignition systems. BRITISH THOMSON-HOUSTON CO., Ltd., and MAYCOCK, W. H. Aug. 9, 1950 [Nov. 22, 1949], No. 29916/49. Class 7 (iv). In an ignition system comprising a vibrator 1 connected in series with a transformer or a highvoltage trembler coil 2 and the output from which passes through a rectifier or spark gap 3 and a surface discharge plug 4 to charge a condenser 5, it is arranged that when successive impulses have raised the voltage of the condenser to that corresponding to the breakdown voltage of a spark gap 6 in series with the condenser 5 the latter discharges its energy through the plug, which energy is additional to the discharge provided by the condenser charging current. An inductance may be included in the condenser discharge circuit. In a modification, the charging and discharging circuits are separated either by the use of three electrode plugs or by the use of two separate plugs. The charging current provides a rapid succession of sparks with sufficient frequency to start an engine whilst the condenser discharge effects a less frequent discharge of high energy sufficient for high altitude ignition. The invention is applicable to any apparatus such as flame throwers or gas turbines wherein continuous combustion is required.
Patent GB-690883-A (GB)
Title: Machine for straightening and polishing metal round section bars or tubes
IPC: B21D3/04
Filed: 1950-12-07
Abstract: 690,883. Rolling. HAMPTON, R. Nov. 27, 1951 [Dec. 7, 1950], No. 29935/50. Class 83 (iv). In a machine for straightening and polishing round metal bars and tubes by skew rolling between a pair of rolls 11, 12 of concave and convex form respectively, two work-pieces 15, 24 are rolled simultaneously and are held against the rolls by a pair of longitudinal bearers 16, 21. The bearers are adjustable at each end by screws 17, 22 and the convex roll 12 is adjustable towards and away from the roll 11 on slidable bearing-blocks 20 to accommodate different sizes of work. The two bars or tubes may be of different diameters, and either or both rolls may be adjustable.
Patent GB-1509457-A (GB)
Title: Pyridine derivatives
IPC: C07D213/30
Filed: 1975-07-17
Abstract: 1509457 Pyridine derivatives; phenyl carbamic acid chlorides ROHM & HAAS CO 17 July 1975 [14 Aug 1974] 29949/75 Heading C2C Novel pyridine derivatives of the Formula I wherein X is a cyano, methylthio or nitro group and R<SP>1</SP> is a C 1-4  alkyl, allyl, benzyl or 2-thenyl group, or salts or metal complexes thereof, are obtained by reacting 3-pyridyl methanol with (a) appropriate phenyl carbamic acid chlorides or alkyl or phenyl esters or (b) phosgene followed by appropriately substituted anilines, or (c) by converting 3-pyridyl methanol into aryloxyformate esters or azidoformates and reacting these with appropriately substituted anilines. Phenyl carbamic acid chlorides of the formula p-X-C 6 H 4 -N(R<SP>1</SP>)COCl may be obtained by reacting seconday amines p-X-C 6 H 4 -NHR<SP>1</SP> with phosgene. Rodenticidal compositions comprise as active ingredient compounds of the Formula I above.
Patent GB-402234-A (GB)
Title: Buckle or clasp for garments and the like
IPC: A41F11/12
Filed: 1932-10-26
Abstract: 402,234. Buckles. ERFASS, K. A. R., 6, Mosebacketorg, Stockholm. Oct. 26, 1932, No. 29993. Convention date, Aug. 19. [Class 43.] A clasp for holding together parts of garments 9, 10, comprises two metal parts 1, 2, hinged together on two cranked ends 4, 5, of a loop 3. The fabric ends 10, 9 are laid over the toothed and bent ends of the parts 1, 2, the former being first threaded through the loop 3, and the clasp is then folded into the position shown in Fig. 3. The pulling over of the loop 3 forces the toothed edge of the clasp 1 to bite into the fabric ends 10, 9. Notches 11 may be formed in the ends of the clasp so that the ends of the loop may snap into them for locking the clasp in the closed position. The loop 3 may have an extension to take a hose suspender strap.
Patent GB-727410-A (GB)
Title: Method and apparatus for spectrochemical analysis
Inventor: MENZIES ALEXANDER CHARLES GEOR
IPC: G01N21/31
Filed: 1952-11-26
Abstract: 727,410. Photo-electric spectrometers. HILGER & WATTS, Ltd. Nov. 23,1953 [Nov. 26, 1952], No. 29993/52. Class 40 (3). In apparatus for determining the concentration of an element in a substance a light source is produced of the substance by electrical means, the light from the source being directed through a filter passing by wavelengths characteristic of the element on to a radiation detector. As shown, a light source 1 is formed by an arc discharge between two electrodes one of which is a piece of brass whose composition is to be tested. The light passes through two separate channels 2, 3, each channel containing a collimating lens 4, a colour filter 5 an all-dielectric interference filter 6 and a lens 7. The interference filters 6 are tiltable so as to modify the position in the spectrum of the bands of light which they pass. The filter 6 in channel 2 passes a spectral band in which three characteristic copper lines occur, while the corresponding filter in channel 3 passes only two lines characteristic of the zinc spectrum. Lenses 8 produce an image of apertures 9 on photo-multiplier tubes 10. A telescope 12 is provided to assist in the initial alignment of the apparatus. In operation a graph is produced showing the correspondence between the proportions of zinc and oopper in a specimen of which the composition is known and the ratio of the light intensities falling on the two multipliers. The composition of unknown substances may then be determined by reference to the graph. Instead of an all-dielectric interference filter a polarization filter of the type described in several publications to which the Specification refers, may be used.
Patent GB-762676-A (GB)
Title: Improvements in or relating to apparatus for drying paper, fabric, textiles or other flexible materials
IPC: D06C7/00
Filed: 1953-10-30
Abstract: 762,676. Drying paper, textile &c. webs. WILSON, A. C. Nov. 1, 1954 [Oct. 30, 1953], No. 30070/53. Class 34(1) Apparatus for drying paper, textile or other webs or sheets in which the material 5 is conveyed on rollers 2, 3, 4, 9 through a long narrow passage 1 while heated air or other gas is forced into the passage through a nozzle 6 by a fan 25 at the material exit to flow in countercurrent has the walls of the passage 1 diverging from the point of air entry 11 to the exit 10 so that the cross-sectional area of the passage increases and prevents development of back pressure at the point of air entry and maintains the static pressure substantially equal to that of the ambient atmosphere. A portion of the air may be recirculated via return pipe 12, heater 7 and fan 25, fresh air being provided via intake 13 to replace exhausted moist air. The gas may also flow in the same direction as the material movement.
Patent GB-484578-A (GB)
Title: Improvements in or relating to means for use in supporting bacon and other foodstuffs during curing
IPC: A22C15/00
Filed: 1936-11-05
Abstract: 484,578. Smoking and curing bacon and other meat. SHONE, G. E. Nov. 5, 1936, No. 30173. [Class 49] Either end of bacon or other meat is protected during smoking or curing by a device consisting of a shield member fitted at each end with elastic cords and/or springs to which are attached small hooks which are engaged with the meat to retain the shield in position. Where both ends 4, 5 of the meat 1 are to be protected, upper and lower shield members 2, 3 are employed, resiliently and adjustably connected with each other as by elastic cords 6, 7 or by springs which may be adjustable by suitable means to allow for differences in the lengths of the sides of bacon &c. treated. The upper shield member 2 may have a slot 8 for the passage of a hook 9 by which the meat is suspended. The upper and lower members and the resilient cords or springs may be constructed for use with a plurality of sides or lengths of meat. The end members may be made of wood.
Patent GB-654806-A (GB)
Title: Improvements in umbrellas, parasols or the like
IPC: A45B9/00
Filed: 1948-11-20
Abstract: 654,806. Umbrellas. FROST, S. M., and KENDALL & SONS, Ltd. Nov. 20, 1948. No. 30216. [Class 134] An umbrella having a flexible bangle 5 for supporting it from the wrist, has means whereby the bangle can be retracted into the stick when not in use. A tubular metal portion 3 of the stick carries a tension spring 10 anchored thereto by a cross pin 10a, one end of the bangle 5 being looped through an eye 9 of the spring 10 and the free ends being glued into a finger knob 8 which limits the inward movement. In use the bangle is withdrawn by pulling the knob 8 away from the handle 1, outward movement being limited by a stop pin 13 which engages the looped end to take the weight of the umbrella. The invention is especially applicable to umbrellas having tubular telescopic sticks and folding or telescopic ribs, Fig. 1, (not shown).