baber/WOPTO huggingface dataset:
Patent GB-1438707-A (GB)
Title: Extrusion moulding machines
IPC: B29C48/50
Filed: 1973-11-30
Abstract: 1438707 Extrusion screw mounting TOMI KIKAI KOGYO KK 30 Nov 1973 [7 Dec 1972] 55756/73 Heading B5A [Also in Division B1] An extruder comprises a barrel having an inlet for resinous material, and one, or a pair of outlets, and a screw having a smaller diameter portion adjacent the inlet and a larger diameter end at the or at each outlet where screw driving means are provided, and leakage of material is prevented beyond the outlet, or outlets by a screw thread of opposite hand to that of the conveying thread of the screw. The arrangement permits the transmission of a higher torque than by driving from the feed end, enabling the use of a smaller diameter screw rotating at a higher screw speed e.g. of 35 mm. diameter and rotating at 1500 r.p.m. in the extrusion of high density polyethylene. In the Fig. 4 embodiment, the screw 21 delivers material, from a feed portion of small screw root diameter at an inlet from a screw feeder 31, to a delivery end of larger root diameter adjacent a die 41, the screw being supported at both ends respectively by a bearing 23, and bearings 26, 27, 29, and being driven, e.g. from a pulley 28, at its delivery end. The screw, Fig. 5 (not shown) comprises a feed, a compression, and a metering zone effected by differing screw root diameter and, adjacent the die 41, the screw shaft is provided with crossslits 42 to effect mixing. Leakage of resin to the bearings at the screw inlet end is also minimized by a thread 46 of the same hand but of closer pitch than that of the screw. The leakage preventing thread 43 rotating in a part of the barrel having a temperature controlled by medium circulated at 44, 45. The screw, Fig. 5 (not shown), may be cooled or heated in its delivery zone, by a medium introduced into a screw bore extending from its driven end, and controlled by a thermocouple in the bore at that end. The Fig. 4 extruder barrel is provided with heaters 34, cooling water inlets and outlets 35, 36 and thermocouples 37. In the Fig. 8 embodiment, a single screw is centrally fed at 57 and is of increasing diameter towards both ends at each of which it is provided with the leakage preventing threads and is supported in bearing 51, 52 and driven at 55, 56, and delivers to dies 58, 59. Figs. 1-3 (not shown) relate to prior art extruders in which a vertical screw (Fig. 3) comprises an upper inlet at a smaller diameter end of the screw, and a lower outlet at a larger diameter end of the screw at which it is supported by a beam and driven, and an extruder with a horizontal screw comprises a central inlet at a larger diameter portion of the screw discharging in each direction towards a pair of outlets at smaller diameter ends of the screw at each of which it is supported by bearings and at one of which it is driven.
Patent GB-1279816-A (GB)
Title: Semiconductor structures
IPC: G11C11/411
Filed: 1969-11-14
Abstract: 1279816 Transistor bi-stable circuits INTERNATIONAL BUSINESS MACHINES CORP 14 Nov 1969 [23 Dec 1968] 55771/69 Heading H3T [Also in Division H1] The bi-stable memory unit of Fig. 1 is made in the integrated form shown in Fig. 3 in which the two double emitter NPN transistors are formed in a single junction-isolated pocket. (The incidental resistance 60 is made as high as possible by providing a suitably large spacing between the two transistors.) The structure is formed on a P<SP>+</SP> substrate upon which an N-type epitaxial deposition is made in two stages, the N<SP>+</SP> subcollectors being formed by diffusion between the two stages. The remainder of the processing-the formation of emitters, bases, connections 38 to the subcollectors and formation of the isolation walls 18-involves normal diffusion and is followed by suitable metallization. The non-linear diodes D 1  and D 2  are distributed diodes formed by the substrate to epitaxial layer junction, the power supply being connected to the substrate. To ensure bi-stable operation, the dynamic impedance of the diodes is made greater than that of the emitter-base diodes by making the doping levels n conform to the relationship (n 16 /n 14 )>(n 26 /n 22 ).
Patent GB-558333-A (GB)
Abstract: 558,333. Counting apparatus; transfer mechanism. NILSSON, R. S. June 29, 1942, No. 8924. [Class 106 (i)] In a transfer mechanism, a transfer pin on the numeral wheel trips the transfer lever to condition an auxiliary lever for subsequent operation by the machine to move said auxiliary lever into the path of a transfer member on a transfer wheel at a predetermined moment after the transfer lever has been tripped. As shown, transfer pin 7 rocks lever 5 clockwise, where it is held by spring detent 14. The auxiliary lever 6 remains in its inoperative position until later in the cycle when bar 24 on shaft 4 after engaging pin 25 rotates cam 23 which rocks lever 20 having a pin-and-slot connection with slider 18. Normally, slider 18 has no effect on lever 6, but when lever 5 has been rocked to transfer position, the turned up end 17 rocks lever 6 clockwise so that the cam portion 10, according to the sense of rotation of wheel 3 secured to bar 24, pushes tooth 8 or 9 sideways whereby the pinion 2 of the next higher denomination is rotated one step. Projection 27 or 26 on wheel 3 restores parts to normal. The amount of lag in transfer can be varied by varying the thickness and relative positions of bar 24 and pin 25.
Patent GB-1354957-A (GB)
Title: Detergents
IPC: C11D1/34
Filed: 1971-12-02
Abstract: 1354957 Detergents containing phosphate surfactants MARLES-KUHLMANN-WYANDOTTE 2 Dec 1971 [18 Dec 1970] 55916/71 Heading C5D A liquid aqueous detergent composition comprises (A) a nonionic surfactant which is a condensation product of one or more linear aliphatic alcohols having 8 to 20 carbon atoms with one or more alkylene oxides in a proportion such that the total alkylene oxide radical content of the condensation product is 40 to 85% of the wt. thereof; (B) an anionic surfactant constituted by a phosphate ester reaction product obtained by reacting a polymetaphosphoric acid with a condensation product as defined at (A); and (C) a linear alkyl benzene sulphonate anionic surfactant; and (D) water. An automatic car washing machine detergent concentrate consists of 5-12% of (A), 2 to 7% of (B), 2 to 10% of (C), 91 to 59% of water, 0 to 10% of a detergent builder and 0 to 20% of sodium or potassium hydroxide. The composition has a pH of 9 to 10. Alkali metal polyphosphates are preferred builders. Optional ingredients are germicides such as sodium benzoate and freezing point depressants such as isopropanol and propylene glycol.
Patent GB-1370582-A (GB)
Title: Torsional damper in a motor vehicle drive train
IPC: F16F1/37
Filed: 1972-12-06
Abstract: 1370582 Motor vehicle drive lines NISSAN MOTOR CO Ltd 6 Dec 1972 [10 Jan 1972] 56374/72 Heading B7H [Also in Division F2] In a motor vehicle drive line including a companion flange 26 which connects a differential pinion shaft 32 to a flange 24 of a universal joint 18 at the rear end of a propeller shaft, there is mounted on the companion flange 26 a torsional vibration damper 20 comprising an inertia ring 46 and an L-section rubber member 48 compressed between the ring 46 and radially and axially extending shoulders 26b, 26c on the companion flange. The rubber member 48 may be bonded to the companion flange 26 and/or to the inertia ring 46.
Patent GB-1320744-A (GB)
Title: Frequency selective circuit
IPC: H03G5/02
Filed: 1970-11-30
Abstract: 1320744 Electrophonic musical instruments SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 30 Nov 1970 [8 May 1970] 56769/70 Heading G5J [Also in Division H3] A frequency selective circuit comprises: a first amplifier A1 having an input connect through a first resistor R1 to a switch K; and an RC network Cs, Rs, Cp, Rp connected to two antiphase outputs of amplifier A1, and having a junction point connected via a resistor R2 to the input of amplifier A1 and to one input of a differential amplifier A2, the other input of amplifier A2 being also connected to the switch K. With the switch K in the position shown, input Vi is applied to one input of differential amplifier A2, and Amplifier A1 and the frequency selective network Cs, Rs, Cp, Rp are connected in a feedback loop to the other input. The output Va has a stop band at a frequency determined by the setting of resistors Rp, Rs, the attenuation at this point being determined by the setting of a gain control in amplifier A1. With switch K in position 1, the input signal is applied to amplifier A1 and the frequency selective network is in the forward path to produce a pass band instead of a stop band. In a transistorized circuit Fig. 4 (not shown) the gain of the amplifier Al is varied by a resistor (R9) in one of the two outputs, The differential input to amplifier A2 comprises an emitter coupled pair (Tr6, Tr7), and the frequency selective network comprises two capacitors (C6, C7), two fixed resistors (R17, R18) and two variable resistors (R19, R20). The variation may be effected with an alternating control voltage to introduce vibrato or tremolo effect into an audio signal.
Patent GB-1414033-A (GB)
Title: Non-bulking activated sludge process
IPC: C02F3/12
Filed: 1973-12-07
Abstract: 1414033 Non-bulking activated sludge process AIR PRODUCTS & CHEMICALS Inc 7 Dec 1973 [24 Jan 1973] 56827/73 Heading C1C In the treatment of sewage and/or industrial waste water by the activated sludge process, control of operating conditions is used to enhance the selective production and maintenance of a highly active biomass, essentially free from filamentous growth, whereby the sludge has favourable settling characteristics. Using at least two successive aeration stages, the ratio of soluble food to active biomass (Fs/Ma) is at least 4, and an adequate quantity of dissolved oxygen is maintained at least during the initial stage. Fs equals 1À5 times the weight of soluble BoD 5  charged per day to the mixed liquor, and Ma equals the quantity of MLVSS (mixed liquor volatile suspended solids) in the mixed liquor in said stage multiplied by an activity coefficient determined by the ratio of the maximum specific oxygen uptake rate of the volatile suspended solids (VSS) under aeration to a reference maximum specific oxygen uptake rate at the same temperature.
Patent GB-1482527-A (GB)
Title: Method and apparatus for treating a liquid
Inventor: WILKES ANOTHONY JOHN
IPC: F15D1/00
Filed: 1973-12-10
Abstract: 1482527 Mixing fluent streams VORTEX SA 10 Dec 1974 [10 Dec 1973] 57236/73 Heading B1C Liquid may be homogenized, or mixed with another liquid or a suspended solid or a gas or be degassed by being allowed to flow under gravity along a path shaped and arranged to cause the liquid flow, within a pre-determined range of flow rates, to oscillate from side to side. An apparatus comprises an element or series of elements, each comprising at least one pair of arcuate shaped basins, the walls of which are shaped to divert into the basins a part of the liquid flowing in the mean direction of flow, so that the flow oscillates as shown in Figs. 5a, 5b. Fig. 2 shows a four basin element folowed by a two basin element, constituting the first and last elements respectively of an installation; liquid enters at 24 and leaves at 26. The flow path may be generally sloping or stepped, and may be an open channel or closed (the flow rate being such that the liquid retains a free surface) in which case the pressure of the atmosphere above the liquid may be cyclically varied. The walls of the connecting channels between the elements may be straight or curved inwardly or outwardly. The basins may have vertical or sloping walls, be lobe-shaped and of increasing and/or decreasing size (see Fig. 6, not shown); may have a bell-shaped depression in the region of the centre of the vortex in the basin, or one or more drain holes; and arcuate upstanding ribs of square, rectangular, triangular or other cross-section. There may be an upstanding rib in the connecting channel.
Patent GB-1166170-A (GB)
Title: Masonry Plugs
Inventor: THIEL ETIENNE JOSEPH JOHANN MA
IPC: F16B13/06
Filed: 1967-12-18
Abstract: 1,166,170. Wall plugs. E. J. J. M. VAN THIEL. 18 Dec., 1967 [27 July, 1967], No. 57301/67. Heading F2H. A wall plug comprises a sleeve formed of two or more parts 1 having a head end and bottom end, a tapering member 5 in the form of a bolt head or nut between the parts 1 at the bottom end of the sleeve, the member 5 being formed with facets 7 and the bottom end portions of the parts 1 having reinforcement portions 17 so as to cause the member 5 to be rotated as it is drawn axially towards the head end of the plug. The four elongate part cylindrical parts are joined together by a cap 3 and a ring 4, and are each provided with flange portions 9 to hold the member 5 in place. The nut member 5 has a flat trailing end face 6 of rectangular form from which extend four facets 7 leading into a conical leading end 8. The inner surface of each part 1 is provided with a triangular flat 10, parallel to the plug axis around which are portions 17 extending, at an angle to the plug axis, from the flange 9 to the curved face 18 of the part 1. The material of the sleeve is thicker in the portions 17 than in the flats 10.
Patent GB-1298823-A (GB)
Title: A plastics product and a method for its manufacture
IPC: B29C48/12
Filed: 1969-11-26
Abstract: 1298823 Coating thermosetting cores by extrusion SONESSON PLAST AB 26 Nov 1969 [29 Nov 1968] 57879/69 Heading B5A [Also in Division E1] A core of thermosetting resin, e.g. carbamide resin containing wood or sawdust, or chalk, enclosed by a thermoplastic resin jacket, may comprise a door or window frame or the sides of a box. The thermosetting resin core including filler is delivered by an extruder directly through the head of a further extruder to harden or set within the thermoplastic resin coating applied by the head, and thereby provide a back pressure to ensure that the core fills the coating. The core preferably contains a minor amount of preferably the same thermoplastic resin to ensure bonding to the coating.
Patent GB-1279597-A (GB)
Title: Clips for elongated workpieces
Inventor: SOLTYSIK EDMUND J
IPC: F16L3/237
Filed: 1970-12-09
Abstract: 1279597 Clips ILLINOIS TOOL WORKS Inc 9 Dec 1970 [10 Dec 1969] 58492/70 Heading E2B A clip for securing elongated workpieces, such as pipes, comprises a base portion 28, an arm portion 30, extending from an integral junction 32 with, and doubled back over, the base portion, parts of the arm and base portions being adapted to be relatively clamped towards each other. The portion 30 includes a curved section 64 extending from the junction 32 for partially defining an imaginary circle enclosing the workpiece 24, and a relatively straight section 68 having an integral junction 66 with and extending at an angle from the section 64, the second mentioned section serving as means engageable with and deformable around workpieces of substantially different diameters when the parts of the arm portion and base portion are relatively clamped towards each other. As shown, the base of the clip formed of relatively soft metal, includes a prong 38 for insertion into a slot 42 of a support 22, and two arm portions 30, 34 each provided with outwardly flared flanges 78, 90, the portion 34 having a slot 62 through which passes a screw 48 the tightening action of which bends the curved section 64 of the arm 30 around a workpiece 24; a similar action takes place in respect of the arm 34. In a modification, the clip 20a, of spring steel, has arms 30a, 34a including spring fingers 68a terminating in hook portions 112 and which are deflected upwards by and to conform substantially to the workpiece. The base 28a has a pair of tongues 104, 106 formed with barbs 108, 110 adapted to be snapped through an aperture 42a in the support 22a, and spring fingers 126, 130 which serve to retain the workpieces until the screw 48 is tightened and also to provide a spring locking action to resist loosening of the screw.
Patent GB-1287576-A (GB)
Title: Inorganic white pigments containing optical brighteners
IPC: C09C1/36
Filed: 1969-12-04
Abstract: 1287576 Polymer compositions containing pigment/brightener preparations CIBA-GEIGY AG 4 Dec 1969 [5 Dec 1968] 59388/69 Headings C3F C3P and C3R [Also in Divisions C4- C5] Preparations of an inorganic white pigment containing an optical brightener, a non-ionic surfactant, and a property-improving additive for the pigment are incorporated in polymer and cellulose compositions in Examples I to XI as follows:-I. TiO 2  and ZnS preparations are mixed dry with plasticized P.V.C. and made into sheet. II. TiO 2  prep. mixed dry with acrylonitrile-butadiene-styrene copolymer is moulded into sheet. III. TiO 2  prep./polyester granules are moulded to sheet. IV. TiO 2  prep. in a polyamide solution in trifluorethanol is dried to a film on glass. V. ZnO prep. in a polyacrylonitrile solution in dimethylformamide is dried to a film on glass. VI. TiO 2  prep. mixed dry with polyethylene is pressed to sheet. VII. TiO 2  prep. in a polystyrene solution in tetrachlorethylene is dried to a film on glass. VIII. TiO 2  prep. mixed dry with cellulose acetate is pressed to sheet. IX. TiO 2  prep. milled with rubber, di-2-ethylhexylphthalate, p-phenylenediamine, ZnO, sulphur, and mercaptobenzthiazole is vulcanized to sheet. X. TiO 2  as a paste preparation with di-2- ethylhexly phthalate is mixed with a coating composition consisting of a polyester-based polyol, a polyisocyanate, and an accelerator in ethyl acetate and ethylene chloride and doctored on to bleached cotton fabric. XI. TiO 2  prep. in a thinned nitro lacquer is sprayed on to cardboard and dried to a film.
Patent GB-1191322-A (GB)
Title: Improvements in or relating to Flow Surfaces
Inventor: PAPST HERMANN
IPC: B64B1/64
Filed: 1967-04-07
Abstract: 1,191,322. Coated metal foil. H. PAPST. 7 April, 1967 [9 April, 1966], No. 60168/69. Divided out of 1,191,321. Heading B2E. A metal e.g. copper, gold, silver or aluminium foil 1 is coated with a layer of hydrophobic material e.g. a fluororesin by apparatus comprising an airtight housing 8 enclosing rollers 5', 5, on which the foil is wound, heated rollers 7 which guide the foil between two heating plates 2, 3 and a movable block 6 of polytetrafluoro-ethylene resin which is selectively urged by biasing means 9 into contact with the metal foil as it passes over a roller 7. The foil is first wound from roller 5'- to roller 5 and heated at 2, 3 to about 400C with the block 6 out of contact with the foil. The foil is then wound back on to roller 5' with block 6 pressed against the foil so that polytetra fluoroethylene is deposited on to the foil and melted evenly thereon by heating plates 2 and 3. In a final stage the foil is rewound on to roller 5, the housing 8 filled with a gas e.g. argon under pressure and the foil wound back again between plates 2 and 3 to re-melt and render more dense the P.T.F.E. coating.
Patent GB-1292059-A (GB)
Title: Process for the production of polymer images from photographic images
IPC: G03F7/028
Filed: 1969-12-10
Abstract: 1292059 Photographic polymer images FUJI PHOTO FILM CO Ltd 10 Dec 1969 [10 Dec 1968] 60299/69 Heading G2C [Also in Division C2] A polymer image is formed by imagewise exposing a silver halide photographic emulsion layer bearing a latent image of silver halide particles held in a binder and developing with, as a reducing agent at least one of a hydrozine - derivative (or a salt thereof) of the formula:- wherein R 1  is H, sulpho, a water-soluble metal salt or an ammonium salt of a sulpho group, optionally substituted alkyl, optionally substituted aryl, optionally substituted aryl, arylhydrazinocarbonyl, thiocarbamoyl, arylazothiocarbonyl, optionally substituted arylsulphonyl, or thioamido; R 2  is H, optionally substituted alkyl or aryl, or R 1  and R 2  may together form a ring containing C, N and optionally O atoms; and R 3  is H, sulpho, a water-soluble metal salt or an ammonium salt of a sulpho group, aryl, or optionally substituted acyl, or R 1  and R 3  may together form a ring; or of the formula:- wherein R 4  is H, optionally substituted alkyl, or optionally substituted aryl; R 5  is optionally substituted aryl, substituted furyl, chlorine or alkyl, R 4  and R 5  may together form a ring containing C, and optionally N and S atoms; and R 6  is H, carbamoyl, substituted oxalyl or aryl, or R 6  and R 4  or R 6  and R 5  may together form a ring, in the presence of water and of a normally liquid or solid addition-polymerisable vinyl compound (i.e. containing a CH 2  = CH- group, a vinylidene group or a maleate containing the -CH = CH- group), the development being effected by treating the emulsion layer with an aqueous alkaline processing solution containing the vinyl compound and/or the reducing agent, whereby the vinyl compound is selectively polymerized in the latent image areas of the emulsion layer. Polymerization may be effected in the presence of sulphite ions. The reducing agent or vinyl compound may be incorporated in the photographic emulsion before it is exposed. Many reducing agents and vinyl compounds are listed. Development may be effected in the presence of a small amount of a silver halide developing agent. After development the unpolymerized vinyl compound may be dissolved out of the layer to leave the relief polymer image. The binder may also be dissolved out at the same time. The polymer image containing an acidic or basic group may be dyed with a dye having an acidity or basicity opposite to that of the polymer. The dyed polymer image may be formed by reduction of a mixture of dyeable and non-dyeable vinyl compounds. The silver image formed during the polymerization may be removed by fixation, oxidation and solution in a silver salt solvent before or after dyeing. The dyed polymer image may be used in dye transfer by intimately contacting the dyed layer with a support, the support or the dyed layer being wetted with a solvent for the dye, so as to form at least one copy of the dye image.
Patent GB-605963-A (GB)
Abstract: 605,963. Furnace grates. MACHINEFABRIK GEB. STORK & CO. N. V. Nov. 14, 1945, No. 30495. Convention date, May 4, 1943. [Class 51(i)] Fuel is conveyed from the front to the rear of the grate of a stoker device by imparting to the grate a series of forward-upward jerks. The grate bars 2 are supported on bearers 3 connected to links 4, or in a modification, Fig. 4, the bearers run on rollers 30 on inclined supports 31, the drive in either case being from a piston 15 and rod 16 actuated by steam or compressed air. A short distance before the end of the forward stroke, the piston 15 shuts off the port 18<1> producing a cushioning effect from the residual steam or air entrapped by said piston. Partitions 8 divide the ash box 7 into three compartments supplied with air through separate ducts controlled by valves 12 and sealed by dampers 26 attached to the bearers, doors 27 being provided for the removal of ash. A vertically adjustable firebridge 22 is provided at the rear of the grate.