baber/WOPTO huggingface dataset:
Patent GB-1299067-A (GB)
Title: Coloured particles of a plastics material
Inventor: MEYER GUNTHER
IPC: C08L67/00
Filed: 1970-02-10
Abstract: 1299067 Colouring polymers DYNAMIT NOBEL AG 10 Feb 1970 [11 Feb 1969 21 Aug 1969] 6389/70 Heading C3P A process for forming coloured particles of a plastics material, comprises (a) forming a first dispersion of particles of a plastics material comprising polyvinyl chloride, a vinyl chloride copolymer, after-chlorinated polyvinyl chloride and/or chlorinated polyethylene in water and/or a swelling agent for the plastics material, (b) adding a second dispersion of particles of an insoluble pigment in a swelling agent for the plastics material or in a mixture of such a swelling agent with water to the first dispersion, and agitating the resulting dispersion to cause the particles of pigment to form a coating upon the surface of the particles of the plastics material without causing reduction of the particle size of the particles of plastics material, and (c) separating the coated particles of plastics material thus formed. An aqueous dispersion of polyvinyl chloride, a vinyl chloride copolymer, or a polymer of other ethylenically unsaturated monomers e.g. polybutyl acrylate, or a polyester may be added to the dispersion obtained before the coated particles are separated off in order to more permanently fix the pigment to the plastics material. Exemplified swelling agents are acetone, tetrahydrofuran, chloroform and dimethyl sulphoxide.
Patent GB-402966-A (GB)
Title: Improvements in or relating to abrasive grinding or milling machines by which a toolis traversed over a workpiece in a helical path
IPC: B24B3/18
Filed: 1933-03-02
Abstract: 402,966. Grinding or milling helical grooves &c. TENNANT, W. J., 111, Hatton Garden, London.-(Aktiebolaget Svenska Kullagerfabrieken ; 17, Artillerigatan Gothenburg, Sweden.) March 2, 1933, No. 6431. [Class 60.] A grinding or milling machine in which the tool is traversed over a work piece in a helical path, for example in sharpening a spirally spirally fluted tap, comprises a base 1 having a vertically adjustable table 2 carrying a cross slide and a longitudinally slidable work-carriage 11 movable by hand-wheels 4, 5 respectively. The work 6 is supported by centres 7, 8, and during the traverse of the carriage is rotated by an amount corresponding to the twist of the flute, so that the grinding-wheel 12, which rotates only, contacts all along the flute. The rotation of the work is produced by a guide bar 13, of channel section, adjustably pivoted to the table 2 at 14 and serving to guide a roller carried by a double rack 16, either set of teeth of which, according to the hand of the helix, may be brought into gear with a pinion 17, which may be clamped to a shaft 18 by means of a screw 124. The shaft 18 drives, through bevel gears 19, 20, a sleeve 21, within which is rotatably mounted a hollow shaft 34, which receives the centre 8 and can be locked to the sleeve 21 through an index-plate 25 secured to the sleeve and an arm 27 adjustably secured to the shaft 34 and carrying a pin which may engage holes in the index plate. In order to set the bar 13, the pitch of the helical groove is ascertained by means of a scale 36 on the index-plate, on which is read the amount of rotation imparted to the work whilst it is moved a definite axial distance as determined by dogs 38, 39 on the carriage 11, the dogs being set the required distance apart, for example 50, 100 or 200 millimetres, by parts 43-45 on a gauge bar 41 and engaging a fixed stop 37 on the carriage 2. The bar 13 is then set by means of scales, corresponding to the axial movement of the work, on a part 33, to an inclination corresponding to the pitch as thus ascertained.
Patent GB-231463-A (GB)
Title: Improvements in domestic fireplaces for solid fuels
IPC: F24C13/00
Filed: 1925-03-11
Abstract: 231,463. Burger Eisenwerk Ges. March 29, 1924, [Convention date]. Closed solid-fuel stoves; cooking-stoves and ranges.-In a domestic heating or cooking stove fitted with means for the production and combustion of a mixture of producer and water gas obtained from solid fuel in the grate the fuelholder 2 supports a steam coil 1 supplied with water under pressure and delivering steam to the injector 6 of a finely-slotted steam and air pipe 7 under the grate, and the gas produced is burnt in a " burner " comprising transverse pipes 19 perforated at sides and top and receiving secondary air from a hood manifold 20 and'valved inlets 24. A graduated valve regulates the water supply, a nozzle 11, Fig. 14, fitted with a filter 13, being provided to prescribe a maximum supply. The .steam is drawn from an upper level of the coil by a pipe 14, Fig. 10, and the air injector 6, Fig. 8, is provided with a secondary set of air inlets 16 which are regulable so as to determine the proportions of the mixture. A slide 8 controlling the under grate air is open during simple natural-draught combustion, and any water then collecting in the coil 1 can be let out by a drain cock.
Patent GB-1213422-A (GB)
Title: Apparatus for the manufacture of moulded articles from expanded materials
IPC: B29C33/00
Filed: 1969-02-07
Abstract: 1,213,422. Apparatus for foamed thermoplastics. ERICH LENDLE & CO. K.G. 7 Feb., 1969 [10 Feb., 1968], No. 6727/69. Heading B5A. In an apparatus for forming articles from partly expanded articles by the action of a heated gas supplied from a chamber surrounding the mould, the surfaces of the gas chamber which contact the heated gas, other than the mould walls, are covered with a layer of corrosion resistant material having low thermal conductivity and low thermal capacity. The material is preferably a silicone rubber or other synthetic plastics material. As shown, the mould is mounted in a frame comprising base, 10, side portions 14, 15 and cover-plate 18. The mould cavity is defined by a male section 17 attached to base-plate 26 and a female section comprising a part of an upper plate 31 and a section 16 attached thereto. The mould cavity is filled from pistol 6 and bores 22 for the entry of a heated gas e.g. steam are provided in the mould walls. The heated gas chamber between the mould walls and the frame may be reduced in volume by bodies 23 of low thermal conductivity and low thermal capacity which are either corrosion resistant or are covered by the corrosion resistant material. The corrosion resistant material may be continued around the edge of the side portions 14, 15 to form a seal 12 co-operating with a groove 13. A pipe 24 with outlets 25 is provided for spraying cooling liquid on to the mould. Ejectors 7 are provided in coverplate 18 and upper plate 31 for removing the foamed article after separation of the mould parts.
Patent GB-1275161-A (GB)
Title: Device for the automatic fastening of supply yarn tubes of various diameters and for their changing in textile machines
IPC: B65H67/02
Filed: 1970-02-12
Abstract: 1275161 Fastening and changing yarn tubes in machines; bobbin supports ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 12 Feb 1970 [13 Feb 1969] 6737/70 Headings DIF and D1J A device for automatically fastening and changing yarn supply tubes of various diameters in textile machines comprises fastening mandrels 4 mounted symmetrically on a rotatable disc 3 above a cam 5, each mandrel 4 having a body 22 with a sleeve 19 mounted axially traversably therein, the upper part of the sleeve having a fastening mechanism for centring and fastening a supply tube 26, the mechanism being controlled by a pin 18 axially traversable in the sleeve 19 and provided with a follower 17 at its end, the follower being resiliently urged against the cam 5. In operation, the disc 3 is indexed to move the mandrels 4 from one position to the next by means of a piston 6 operating a toothed rod 9 which engages a toothed wheel 12 on which is mounted a pawl engaging a ratchet wheel 14 mounted on the shaft 2 of the disc 3. Referring to Figure 4, the empty mandrel 4 is in the ready position. The cam follower 17 moves in the direction S and rides up on the cam 5. The pin 18 is pushed up within the sleeve 19 and pushes up an associated rod 30 within the pin 18. The top of the rod 30 engages fingers 31 on jaws 27 pivoted at 28 in grooves at the top of the sleeve 19, Figure 5. The jaws 27 are pushed out to engage the inside of the yarn supply tube 26 which is positioned on the mandrel. When the yarn has been removed from the tube 26 the disc 3 is again indexed, and the cam follower 17 engages a steep downward slope of the cam 5. A spring 20 urges the pin 18 downwardly and the associated rod 30 disengages the fingers 31 of the jaws 27 which are returned to their grooves under the action of elastic ring 29. As the follower 17 continues down the slope under the influence of spring 23 engaging the fixed body 22 of the mandrel, the sleeve 19 is also urged downwardly within the body 22 and thus releases the yarn tube 26 which is knocked off by a stationary pin 45. Continued movement of the follower over the cam surface prepares the mandrel as in Figure 4 and the sequence is repeated. In an alternative embodiment the fastening element at the top of the sleeve 19 comprises a resilient member fixed to a ring slidable on a rod associated with the rod 30. The top of the resilient member being clamped to the top of the rod. Upward movement of the ring on the rod compresses the resilient member which expands laterally to grip the inside surface of the yarn supply tube. In a further embodiment, the resilient member is connected to a source of pressurised fluid by means of a conduit in the pin 18 and the resilient member is inflated to grip the yarn tube. In a further embodiment, levers are pivotally connected to the jaws 27 to provide a longer contact portion with the inside surface of the yarn tube.
Patent GB-1039233-A (GB)
Title: Apparatus for the manufacture of polymethylene glycol esters of aromatic dicarboxylicacids
IPC: C08G63/00
Filed: 1963-01-15
Abstract: An esterification reactor comprises a vertical column having inlets in the upper portion for liquid reactants, an outlet in the lower portion for the ester, an outlet for vapour from the upper portion, a heater surrounding the column, and containing inert bodies of sufficient surface area to provide a static hold up of at least 25% of the reactants therein.  As illustrated in the figure (not shown) dimethyl terephthalate together with catalysts and modifying agents are fed to melt tank 10 where they are mixed and heated and then passed to feed tank 22 also equipped with a stirrer and heating means.  The thus prepared first reactant is passed to reactor 36 and ethylene glycol is passed separately thereto from reservoir 30 via heater 34.  The reactor shown has a heating jacket 42 which may be replaced by electric resistance heating.  Methanol is recovered in condenser 46 and the transesterified product, bis-(hydroxyethyl) terephthalate, is passed by line 58 to the prepolymerizer 52 of the kind claimed in Specification 1,039,232 [Also in Division B1].
Patent GB-1142306-A (GB)
Title: Fluorinated ethers, polymers thereof, and uses thereof in textile finishing
IPC: D06M15/353
Filed: 1966-02-16
Abstract: 1,142,306. Fluorinated ethers. A. G. PITTMAN, and W. L. WASLEY. 18 Feb., 1966 [18 Feb., 1965; 20 May, 1965], No. 6877/66. Heading C2C. [Also in Divisions C3 and D1] The invention comprises compounds of the formula wherein each R represents hydrogen or a halogen atom or an unsubstituted or halogensubstituted saturated aliphatic or cycloaliphatic group, at least 2 R's being fluorine, and each R<SP>1</SP> is the same as R or tgoether R<SP>1</SP> represents an alkylene chain optionally substituted by halogen, and A represents a vinyl or allyl radical or a group wherein one of Y and Y 1  represents halogen and the other represents halogen. The ethers are prepared by reacting an alkali metal fluorcarbinolate of the formula wherein M is an alkali metal with a halide A-X, where X is halogen. The compounds in which A is the group may be dehydrohalogenated to the corresponding vinyl compounds. The starting carbinolates, which may not be isolated before conversion to the ethers, are obtained by reacting a ketone with an alkali metal fluoride. The etherification reaction is preferably effected at 20- 100 C. in the presence of a solvent. Dehydrohalogenation may be effected by, e.g. heating with KOH or NaOH or a tertiary amine. The vinyl and allyl ethers may be polymerized to give products which are used in oil- and waterproofing fibrous material (see Divisions C3 and D
Patent GB-1008833-A (GB)
Title: Improvements in methods of and apparatus for manufacturing flat or corrugated panelscomprising fibres and synthetic resin
IPC: B29C70/50
Filed: 1964-02-19
Abstract: 1,008,833. Bonded-fibre fabrics; corrugating sheet material. B. RUDLOFF. Feb. 19, 1964, No. 6883/64. Headings D1R and D1S. [Also in Division B5] A web 7 of fibres and synthetic resin formed by rolling fibre flock charged with synthetic resins and fire-proofing, sterilising or rot-proofing preparations, carried between a pair of synchronously moving perforated conveyer belts 6, 6<SP>1</SP> and a pair of endless chains 5, 5<SP>1</SP>, is caused to take up a flat or corrugated contour and be polymerized within a tunnel 1 in which air under pressure from a heater 4 is passed into cones 2, through the conveyer belts and web, and returned by suction from cones 3 to the heater. The chains 5, 5 are interconnected by axles 8, mounting spaced and freely rotatable rollers 10, moving synchronously with the belts 6, 6<SP>1</SP> and driven by sprockets 11 which engage the axles. The extreme ends of the axles 8 mount bearings 9 which contact guide rails 13, 13<SP>1</SP> to move the rollers into contact with the belts 6, 6<SP>1</SP>. By appropriate spacing of the rails 13, 13<SP>1</SP> the web 7 may be caused to take up a flat or corrugated contour. The polymerized web is cut into panels of the desired dimensions after any desired vitrification, painting or lacquering operations. Specification 957,246 is referred to.
Patent GB-337711-A (GB)
Title: Improved dry seal for disc gas holders
IPC: F17B1/04
Filed: 1930-03-03
Abstract: 337,711. Chur, E. March 7, 1929, [Convention date]. No Patent granted (Sealing fee not paid). Holders. - The seal between the shell 1 of a gas holder and a ring 2 on the moving cover or disc 3 is made by an endless metallic bose 9 which is filled with air, gas, or liquid under pressure and is arranged between ribbed guide rollers 11, 12. The upper rollers are adjusted by means of bolts 5 so as to flatten the hose and cause it to bear tightly against the surfaces of the shell 1 and ring 2. As the disc rises or falls, the hose, which is covered by rubber or cotton fabric, rolls on the surfaces of the shell 1 and ring 2; tilting of the disc being prevented by guide rollers 7, 8.
Patent GB-917288-A (GB)
Title: Improvements in or relating to step ladders
Inventor: AIREY ROBERT EDWARD
IPC: E06C1/393
Filed: 1960-02-29
Abstract: 917,288. Step ladders. AIREY & SON Ltd., ROBERT. Feb. 28, 1961 [Feb. 29, 1960], No. 6964/60. Class 20 (2). A step-ladder having a back rest with side members 24 connected by crossbars 28, 30, 32 and engaging the side members 16 of the ladder laterally and connected therewith by pivots 14, the ladder being held in open position by the engagement of crossbars 38, 28 on the ladder and back rest respectively or the engagement of abutments on both these parts that overlap laterally, comprises a bucket platform 22 extending to the rear. The platform is pivoted by trunnions 46 to the ladder and has a crossbar 44 engaging the crossbar 30. Diagonal struts 52 strengthen the base of the ladder. Specification 555,774 is referred to.
Patent GB-794508-A (GB)
Title: Improvements relating to variable liquid-resistor devices
Inventor: BAILEY GERALD ARTHUR
IPC: H01C10/02
Filed: 1955-03-10
Abstract: 794,508. Levels; gyroscopic apparatus. FERRANTI, Ltd. June 8, 1956 [March 10, 1955], No. 7005/55. Classes 97(2) and 97(3) [Also in Groups XXXVI and XXXVIII] In a transducer for tilt detection.a quantity of highly resistive liquid 15 (Fig. 2), e.g. a mixture of alcohol and lithium nitrate, is located in a glass envelope comprising a watch-glass shaped dish 11 (Fig. 3) on the uniformly concave surface of which is painted a platinum electrode having four symmetrically spaced strips 20 extending radially from a central portion 21, passing over the edge 13 of the dish 11 and continuing on the convex: surface thereof as strips 20<SP>1</SP> which combine to form a central conductive disc 22, and a watch-glass shaped lid 12 (Fig. 2) on the concave surface of which are painted four symmetrically spaced platinum electrodes 16 (two only shown) which extend over the edge 14 of the lid 12, continuing as strips 16<SP>1</SP> on the convex surface thereof..The dish 11 and the cap 12 are sealed together at their peripheral edges 13, 14, by a comparatively low-temperature sealing process, e.g. glass soldering or cementing. A coating of silver paste is baked on to the outer conductors 16<SP>1</SP>, 20<SP>1</SP>. 22, before the liquid 15 is inserted through a hole 23 (Fig. 3) between the edges 13, 14 which is subsequently sealed. A departure of the device, which may be mounted on a gyro, from the horizontal will cause an inequality in the resistances of at least two of the four paths between the liquid and the electrodes 16 which may be used to produce an error signal proportional to the slope of the device. When the detection of tilt in only one vertical plane is required the envelope may be oval or oblong with one or two electrodes 16.
Patent GB-498576-A (GB)
Title: Improvements in and connected with dynamos
IPC: H02K23/02
Filed: 1938-03-07
Abstract: 498,576. Exciting dynamos. DICK, E. March 7, 1938, No. 7090. Convention date, March 8, 1937. [Class 35] In order that the polarity of a generator, e.g. a train-lighting dynamo 1 may remain the same when the direction of rotation is reversed, an exciter 8 driven therewith has a pair of brushes 13, 14 rockable through one pole division on change of direction of rotation and connected with the exciter field winding 15 which therefore has always the same polarity, and a stationary set of brushes 11, 12 connected with the main generator field winding 3, the polarity of which accordingly changes with reversal of rotation. The two sets of brushes may co-operate with separate commutators. The generator and the exciter may be separately driven from the vehicle.
Patent GB-476664-A (GB)
Title: Improvements in and relating to the purification of dielectric materials
IPC: C10G73/42
Filed: 1936-03-09
Abstract: Sealing compounds for Pupin coils or other electric apparatus are purified by treatment, simultaneously or consecutively, with 2 oppositely polar adsorbents.  For example, ozokerite or other mineral wax is treated with silica gel and fuller's or other bleaching earth. A non-polar adsorbent, e.g. active carbon may partially or entirely replace the combination.
Patent GB-124747-A (GB)
Title: Improvements in Means for Actuating Electric Switches for Controlling Electrically Driven Pumps.
Inventor: DISPOT ARTHUR
IPC: H01H35/18
Filed: 1919-03-21
Abstract: 124,747. Dispot, A. March 21, 1918, [Convention date]. Controllers, actuating-mechanism for. - In means for actuating an electric switch for controlling electrically-driven pumps, a bell 30, with mercury-sealed valve, is connected by a pipe 33 to a bell 28 provided adjacent the switch mechanism. The switch mechanism is placed in a compartment in a tank 1 and is separated from the liquid in the tank by a liquid tight partition. The mechanism comprises a lever 3 with stops adapted to engage a tumbling weight which passes over a dead centre position and moves contacts carried by a contact arm into or out of mercury cups in order to make or break the circuit of the motor driving the pump. The lever 3 is connected to the bell 28 by parallel links, a counterweight being provided. The application of the invention for filling a reservoir is shown in Fig. 3. When the' water in the reservoir rises to the level N<3>, air is driven from the bell 30 to the bell 28, which rises and operates the lever 3 to open the switch and stop the pump. As the level of water in the reservoir falls, the mercury-sealed valve prevents the return of air to the bell 30, and the air is unable to escape from the bell 28 until the water falls to the level N<4> beneath the outlet of the pipe 33<1> connected to the pipe 33. When this level is reached, air escapes from the bell 28 and the switch is closed to operate the pump. The apparatus can also be used for emptying an underground cistern, the contacts in this case being arranged to open the switch when the water in the cistern falls to the lower level. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification of the switching mechanism shown in Figs. 1 and 2 (Cancelled). In this form the bell 28 is replaced by a float mounted on a lever 17 connected to the arm 3. Projections 4, 5 on the arm engage a tumbling-lever 8 which in turn engages projections 15, 15<1> on a lever 10 carrying contacts 12, 13 dipping into mercury cups 14 in the motor circuit. A leaf spring 16 is provided to prevent recoil of the lever 10 after the contacts have entered the cups. The switch mechanism is enclosed in a liquid tight compartment 2 of the tank, the engagement of the lever 3 with the tumbling-weight being effected above the upper edge of the partition 6. The invention may be used for raising a town's water to a higher level in cases where the pressure is insufficient during certain hours of the day, a valve being fitted to the supply pipe in the tank. This valve is normally held open by a weight, but should the pressure in the mains become greater than that corresponding to the level determined by the regulating-apparatus, the water will continue to flow into the tank after the pump has stopped until the continued rise of the float by a link connexion with the valve lever causes the water to close and prevent the entry of more water. This subject-matter does not appear in the Specification as accepted.
Patent GB-1039543-A (GB)
Title: Improvements in and relating to sound attenuating structures for ventilating openings
Inventor: JENN LOUIS JOSEPH
IPC: F24F7/02
Filed: 1963-02-22
Abstract: 1,039,543. Silencing gaseous flow. JENNAIR PRODUCTS CO. Inc. Feb. 22, 1963, No.7192/63. Heading F1B. [Also in Division F4] A silencer for a ventilating fan 142 comprises a box structure 110 having an inlet 116 and an outlet 119 on which the fan is mounted, a baffle 129 covered on its side facing the outlet with sound absorbing material, and sound absorbing material 124 on the sides and bottom of the box 110. The inlet 116 is formed by a fitting 125 having flow adjusting vanes 126 and the top of the box 110 is formed by a flanged plate 118 which is prevented from vibrating by a layer 123 of material such as sponge rubber. The device is mounted in an opening in a roof 117 by a flanged member 135. In a modification, Fig. 5, (not shown) the inlet and outlet 216, 219, are situated to one side of the box and the air is diverted around the end of the elongated baffle 229. In a further modification the baffle is omitted and the inlet and outlet are not in line. Sound absorbing material may be provided on the lower surface of baffle 129.
Patent GB-290777-A (GB)
Title: Improvements in and relating to electrical alarm devices for hose reels
Filed: 1927-03-15
Abstract: 290,777. Micholson, J. March 15, 1927. Switches, actuating. - A switch for an electric alarm on a hose reel adapted to operate when any desired number of turns has been unwound has the axle b of the drum a abutted against or integral with a plug e carrying a metal band e<1> which contacts a spring contact h when the spindle is moved endwise on rotation of the coil by the engagement of a, thread b with a nut g.