baber/WOPTO huggingface dataset:
Patent GB-1525003-A (GB)
Title: Automatic control for a power unit consisting of an internal combustion engine and a hydrostatic transmission
IPC: B60W10/103
Filed: 1975-10-17
Abstract: 1525003 Hydrostatic transmission control KLOCKNER-HUMBOLDT-DEUTZ AG 17 Oct 1975 [29 Oct 1974] 42665/75 Heading F2W In a hydrostatic transmission for a vehicle wherein the displacement of a variable displacement pump 7 and motor 12 in closed circuit 10, 11 are adjusted by servos 6, 13 to which control liquid is delivered by an engine driven constant displacement 15 through a line 17 at a pressure determined by a variable relief valve 20 and pressurization of the line 17 is prevented by a valve 24 until the pressure drop across a variable orifice 18 in the line 17 exceeds a predetermined value, a one-way valve 19 is provided between the variable orifice 18 and the servos 6, 13. The valve 24 is spring biased to its open position in which it vents the line 17 upstream of the one-way valve 19. The variable orifice 18 is connected by a linkage 22 to the engine throttle control lever 3. On movement of the lever 3 to increase engine speed the orifice 18 is opened. The opening of the orifice 18 and increase in engine speed are such that the pressure drop across the orifice increases to a value which is sufficient to change-over the valve 24. Thereafter the pressure in the line 17 increases to a value determined by the variable relief valve 20 and is applied through a reversing valve 34 to the pump displacement adjusting servo 6 and through a line 38 to the motor displacement adjusting servo 13. If the load on the transmission is sufficient to slow the engine the output from the pump 15 decreases and the pressure drop across the orifice 18 also decreases whereupon the valve 24 opens to vent the line 17 upstream of the one-way valve 19. Thereafter the line 17 downstream of the one-way valve 19 is slowly exhausted through a throttle valve 39 to increase the transmission ratio and reduce the load on the engine. The resulting increase in engine speed causes the valve 24 to close and the original transmission ratio to be restored. A sudden movement of the lever 3 to increase engine speed additionally opens the variable orifice 18. The time lag between an engine speed increase command the actual increase in engine speed causes a temporary reduction in the pressure drop across the orifice 18 which opens the valve 24 to cause a slow increase in transmission ratio as described above. The one-way valve 19 preventing a sudden increase in transmission ratio. As the engine speed increases to the command value the valve 24 recloses to restore the original transmission ratio.
Patent GB-982920-A (GB)
Title: Improvements relating to heat storage apparatus
IPC: F04D17/04
Filed: 1961-02-10
Abstract: 982,920. Heat storing apparatus. FIRTH CLEVELAND Ltd. Feb. 10, 1961 [Feb. 11, 1960], No. 42991/64. Divided out of 982,919. Heading F4U. An electric thermal storage heater comprises a rectangular section insulating jacket 3 containing plates of heat storage material formed with recesses which co-operate to provide an air duct 2 through the mass in which is embedded an electric heating coil (not shown). Air enters the casing through a lower inlet provided with a replaceable filter unit 4 and is driven by a blower 7 through the duct to an outlet 12. To control the temperature of the effluent air a by-pass for the duct 2 is provided below the heat storage mass so that air can pass directly from the blower to mix with the air issuing from the duct 2 in a chamber 6 before flowing to the outlet. The air flow is proportioned between the duct and by-pass to give the desired outlet temperature by a vane 10 which is adjusted by a bimetal thermostat 11 located adjacent the outlet. The blower, which is further described in Specification 876,611, comprises a drum-shaped rotor 7 closed at both ends and driven at a predetermined speed by a motor 13, the rotor extending for the full length of the heat storage mass parallel to the adjacent longer side of the casing. The rotor has a series of curved blades arranged so that in operation air is drawn into the interior thereof from the lower side and expelled through the upper side, an external guide baffle dividing the suction side from the pressure side. The nose portion of the guide baffle is angularly adjustable to vary the output of the blower, Figs. 6 and 7 (not shown),
Patent GB-975042-A (GB)
Title: Improvements relating to textile ring spinning and twisting machines
Inventor: WESTALL ARTHUR
IPC: D01H7/60
Filed: 1962-11-14
Abstract: 975,042. Spinning-rings. T. M. M. (RE - SEARCH) Ltd. Nov. 1,1963 [Nov. 14,1962], No. 43132/62. Heading D1D. A spinning-ring is adjustably mounted in a rail or holder by a spring-plate 12 fixed to the rail &c. 11 and acting on a part 102 of the ring downwardly extending through a hole in the rail &c., so that the ring is pulled downwardly for a flange 101 to seat on the upper surface of the rail &c. The plate may be horseshoe-shaped with enlarged limbs secured by set-screws 14 to the rail &c., allowing the ring to be centred relatively to the spindle-axis. One of the screws may carry a traveller-clearer having a lug engaging a notch in the ring so that by rotating the ring the position of the clearer may be adjusted, (Fig. 2, not shown).
Patent GB-1019076-A (GB)
Title: Method of removing silicon from germanium ingots
IPC: C30B13/00
Filed: 1962-11-16
Abstract: Silicon is removed from germanium ingots by melting, either zone or complete melting, in an oxidizing atmosphere having an oxygen partial pressure of 0.001-0.1 atmosphere whereby the silicon oxide formed floats to the melt surface and is removed. Traces of Ca, Mg, and Al present are simultaneously oxidized and removed.  Preferably oxygen, carbon dioxide, or steam diluted with hydrogen, nitrogen or an inert gas is used to form a mixture containing 0.01-10.0% by volume of the oxidizing gas.  Any residual oxygen in the treated germanium is removed by remelting in hydrogen.
Patent GB-1272814-A (GB)
Title: Benzene diazonium compounds and diazotype material containing the same
IPC: G03C1/54
Filed: 1969-09-02
Abstract: 1,272,814. Diazonium compounds. KALLEA.G. 2 Sept., 1969 [3 Sept., 1968], No. 43402/69. Heading C2C. [Also in. Division G2] The invention comprises diazonium compounds of the formula in which R 1  and R 2  denote alkyl, aralkyl or cycloalkyl groups or form a heterocyclic ring with the nitrogen atom to which they are linked, R 3  denotes hydrogen or a group OR 6 , R 6  denoting an alkyl or a fluorinated alkyl, alkenyl, cycloalkyl or cycloalkenyl group, R 4  and R 5  denote hydrogen, halogen, an alkyl group or a group OR 6  and X denotes an anion, at least one of R 4  and R 5  being hydrogen and at least one of R 3 , R 4  and R 5  being a fluorinated radical, as specified above, and at least one fluorinated radical being further substituted by another halogen, hydroxy, acyloxy, alkoxy, aryl or alkylated or acylated amino. The compounds are obtainable by processes analogous to known processes, various methods of preparation being summarized. The products are useful in diazotype photography (see Division G2).
Patent GB-1105455-A (GB)
Title: Aryl and cyclohexyl alkanones
Inventor: MEERBURG WILHELMONA
IPC: C07C49/213
Filed: 1963-11-05
Abstract: Soap contains as a perfume ingredient a compound of formula <FORM:1105455/C4-C5/1> wherein R1 is H or Me, R2 is Me or Et and A is a benzene or cyclohexane ring.ALSO:Compounds of formula <FORM:1105455/C2/1> wherein R1 is H or Me, R2 is Me or Et and A is a benzene or cyclohexane ring, are prepared by standard procedures involving Grignard reactions, oxidation and/or reduction.  The compounds 2 - methyl - 2 - phenylheptanone - 4, 2 - methyl - 2 - phenylhexanone - 4 and 2 - methyl - 2 - (4 - methylcyclohexyl)hexanone - 4, are claimed per se.  Grignard reagents are prepared by reacting 1 - chloro - 2 - methyl - 2 - phenylpropane or 1 - chloro - 2 - methyl - 2 - (4 - methylphenyl) propane with Mg in ethyl n-butyl ether.ALSO:Perfume, odorant or flavour compositions contain compounds of formula <FORM:1105455/A5-A6/1> wherein R1 is H or Me, R2 is Me or Et and A is a benzene or cyclohexane ring.
Patent GB-1005664-A (GB)
Title: Method and apparatus for weaving fabrics from patterns
IPC: D03C3/20
Filed: 1961-12-08
Abstract: 1,005,664. Designing woven fabrics; jacquards. LIPACO S.A. Dec. 8,1961 [Dec. 8, 1960], No. 43976/61. Headings D1E and D1K. Patterns are woven (from say black warp and white weft) by scanning an original in elementary areas equivalent to, say, 4 threads by 4 threads of the fabric, measuring the shade of each elementary area, and deriving control signals which not only produce the requisite number of warp lifts in the area to match the shade, but also so dispose the lifts in relation to those of adjacent areas that floats of excessive length are avoided. Since the areas occupy four picks of weaving, the signals are stored on magnetic tape and re-transmitted one pick at a time. Excessive floats are obviated by providing sixteen versions of each 4 x 4 weave, disposed as a 16 x 16 square. For example the lightest shade is obtained by a single warp thread lift in a 4 x 4 area; the 16 x 16 square consists of sixteen such 4 x 4 areas with the single lift placed in each of the possible sixteen positions; consequently in an area of any size woven at the lightest shade, no warp or weft thread can float over or under more than fifteen other threads. For darker shades, a greater number of warp lifts occur in the 4 x 4 areas, but each such arrangement of lifts includes the lifts employed for lighter shades in the samepart of the 16 x 16 area, thereby maintaining the condition for avoiding excessive floats. In order to reduce the amount of switching equipment, shades that required more than eight warp lifts in a 4 x 4 area are obtained by reversing the action of the switches that control lighter shades, so that the selected warp threads are left down and all the others are lifted instead. Jacquard: The lifting hooks of the jacquard are moved into and out of range of the griffe by pusher needles 301 slidable in bosses on a fixed frame 369 wound with individual coils 1C1. The coils are energized in succession by signals from the magnetic tape mentioned above to magnetise each needle in one direction of the other according to whether the associated warp thread is to be lifted or left down. When all the needles have been magnetised, a permanent magnet 376 approaches them and then recedes, taking with it those needles that are attracted by it and leaving behind those that are repelled.
Patent GB-1513808-A (GB)
Title: Intumescant sheet material
IPC: C04B26/04
Filed: 1975-10-28
Abstract: 1513808 Intumescent sheet material MINNESOTA MINING & MFG CO 28 Oct 1975 [4 Nov 1974] 44438/75 Addition to 1476183 Heading D2B [Also in Divisions B1 and B5] A flexible intumescent sheet material comprises from 30 to 75% by wt. expandable mica, 20 to 65% by wt. inorganic fibrous material and 5 to 20% of an organic binder, the sheet having a bulk density when dry of at least 0.5 g/ml. The expandable mica may be an unexpanded vermiculite ore. The inorganic fibrous material may be asbestos, soft glass fibre, zirconia-silica fibre, crystalline alumina whiskers, or aluminosilicate fibre. The organic binder may be a natural rubber, styrene-butadiene, butadieneacrylonitrile, acrylate or methacrylate latex. The sheet may be made by a papermaking method. Flocculants e.g. alum, acid or alkali may be used in such a method. The intumescent sheet material is used as a packing in positioning car exhaust gas catalyst supports in containers.
Patent GB-1110758-A (GB)
Title: Improvements in or relating to electroslag welding
IPC: B23K25/00
Filed: 1965-10-22
Abstract: In electro-slag welding a consumable electrode is fed through a consumable steel tube coated with the following composition 20-50% Si O2, 5-40% CaO, 0-25% MgO, 0-25% MnO, 0-15% Al2O3, 0-40% Ca F2, 0-30% alloying agents applied to a thickness of 0.5-2.5 m.m. using a binder.  A specified alloying agent is FeMo.  The welding is effected using an electro-slag flux of the same composition as the coating.
Patent GB-1220090-A (GB)
Title: Improvements in or relating to digital computing and information processing machine and system
Inventor: CASE JAMES HUGHSON
IPC: G06F15/80
Filed: 1967-12-28
Abstract: 1,220,090. Computers. J. H. CASE and N. C. STEWART. 28 Dec., 1967 [29 Dec., 1966], No. 45164/70. Divided out of 1,220,088. Heading G4A. A digital circuit can store information and transfer it to other digital circuits, and stores control digital information that determines the direction and extent of such information transfer, and can automatically change the control information to indicate the fact of transfer through that circuit. The disclosure is as in Specifications 1,220,088 and 1,220,089 which are referred to.
Patent GB-1531299-A (GB)
Title: Push-button switch device for a multifrequency dialling telephone set
IPC: H04M1/23
Filed: 1976-10-29
Abstract: 1531299 Mechanical switches; component assemblies SOC DES TELEPHONES PICARTLEBAS 29 Oct 1976 [17 Dec 1975] 45194/76 Headings H1N and H1R In a push-button assembly for a keyboard of a multifrequency dialling telephone set, a pivoted contact plate 32, Fig. 4, carrying three contacts 33 and resting in an aperture 31 of a push-button slide 25 initially moves under the action of a compression spring 28 to engage contacts 33<SP>1</SP>, (34<SP>1</SP>), Fig. 3 (not shown), of two selection circuits of a multifrequency generator after which the slide 25 acting against a restoring spring 27 engages a projecting arm 38 of a pivoted rod 39 having an arm 43 engaging a slider 44 which moves a pivoted contact blade 49 connected to a supply terminal of the multifrequency generator into engagement with a pivoted contact blade 46 connected to a telephone line wire. The pivoted blade 46 normally rests against a fixed contact blade 53 connected to a second telephone wire whereby the telephone wires are shunted until the blade 49 engages and moves the blade 46. The push-buttons 7 and slides 25 are normally restored by a torsion spring 27 which exerts a force greater than that of the compression spring 28. The contacts 46, 49 and slider 44 are restored by tension coil springs 51, 52. Groups of the switches may be mounted on a common telephone dial support (12), Fig. 2 (not shown), and are coupled to a common printed circuit board (16) which is bolted to the telephone housing (1).
Patent GB-1199168-A (GB)
Title: Closures for Pressurized Dispenser Containers
IPC: B65D83/14
Filed: 1967-10-04
Abstract: 1,199,168. Pressurized dispensing containers. PRECISION VALVE CORP. Oct.4, 1967 [Oct. 10, 1966], No. 45327/67. Heading FIR. A closure 1 for a pressurized dispensing container and adapted to receive a valve unit 3 has a deformable liner 15 which seats against the pedestal.portion 16 and lateral portion of the closure 1, the liner having a central opening in an annular ridge, 17 through which the valve stem passes. The ridge is serrated to allow filling.
Patent GB-1043682-A (GB)
Title: Improvements relating to circuit arrangements for voltage or current stabilisers
Inventor: WILSON JOHN FERGUS GRAHAM
IPC: G05F1/56
Filed: 1961-12-28
Abstract: 1,043,682. Automatic control of current or voltage. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 28, 1962 [Dec. 28, 1961], No. 46368/61. Heading G3R. In a voltage or current stabilizer in which the conductance of a regulating element, e.g. a transistor TR1, is controlled by a detecting circuit which is responsive to output variations and which includes a transistor TR2, the detecting circuit also includes a non-linear resistive element such as a tungsten filament lamp L which acts so that the incremental change in the current flowing in the resistive element which is required to produce a predetermined change in the value of the control signal generated by the detecting circuit is reduced due to the non-linearity of the resistive element.
Patent GB-1288230-A (GB)
IPC: C08F2/00
Filed: 1969-09-19
Abstract: 1288230 Alternating copolymers JAPAN SYNTHETIC RUBBER CO Ltd 19 Sept 1969 [24 Sept 1968 4 Oct 1968 13 Dec 1968] 46388/69 Heading C3P An alternating copolymer of a conjugated diene and a conjugated heterodiene (a compound having two conjugated double bonds one of which is between carbon and an element other than carbon, especially O, N or S) is prepared by contacting the monomers with a catalyst comprising (A) a compound R a 1 MX b 1 where M is an element of Groups II B -IV B , X is halogen, hydrogen or -OR<SP>11</SP>, R<SP>1</SP> and R<SP>11</SP> are alkyl, cycloalkyl, aryl or aralkyl, and a and b are numbers whose sum is the valency of M and either of which may be zero; and (B) an organic compound X<SP>2</SP>CQ<SP>1</SP>Q<SP>2</SP>Q<SP>3</SP> where X<SP>2</SP> is a labile halogen atom (i.e. one reactive towards component (A)), Q<SP>1</SP> and Q<SP>2</SP> are hydrogen, halogen, alkyl, alkenyl, aryl or aralkyl and Q<SP>3</SP> is any of these or cyanide or a hydroxy, alkoxy, carboxylic acid, ester, amide or acid halide group or a thio analogue thereof. The catalyst may also be used to prepare novel ter- or higher-copolymers in which the diene and/or heterodiene component comprises a mixture of monomers or the diene component is partly replaced by a monounsaturated monomer. Numerous examples describe the polymerization of, as dienes, butadiene, isoprene, 1,3-pentadiene, or chloroprene; as heterodienes, acrylonitrile, methacrylonitrile, methyl, ethyl or butyl acrylate or methacrylate, dimethyl fumarate, or maleic anhydride; and as monoenes, isobutene, butene-1, styrene, vinyl chloride or vinyl acetate. Other copolymers specifically mentioned include cyclopentadiene or acrolein as monomers. Exemplified catalyst components are (A) Et 3 Al, Et 2 AlCl, Et 3 Al 2 Cl 3 , EtAlCl 3 , (i-Bu) 3 Al, Et 2 AlOEt, Et 2 Zn and Bu 4 Sn; and (B) Cl 3 C.COOH, Cl 2 HC.COOH, ClH 2 C.COOH, Cl 3 C.CHO, CCl 4 , t-BuCl and C 6 H 5 CH 2 Cl. Polymerization is carried out in toluene, heptane or methylene chloride, or in bulk.
Patent GB-1456831-A (GB)
Title: Deformable structures
IPC: A61F13/04
Filed: 1972-10-09
Abstract: 1456831 Splints T J SMITH & NEPHEW Ltd 9 Jan 1974 [9 Oct 1972] 46414/72 Heading A5R [Also in [Division B8] A structure comprising a gas absorbable particulate material in a gas impervious container, e.g. a plastics bag, is rigid at low temperature at which the gas present in the container is absorbed and flexible at a higher temperature at which the gas is desorbed. Using as container an elongate plastics bag a structure is formed which will droop under gravity if it becomes warm, e.g. owing to a fire in its vicinity and may be used as a temperature sensing device such as a water-sprinkler fire protection system. The structure may also be used in medicine as a temporary splint for operations or casualty use. The rigid structure may be made flexible by puncturing the container and allowing ingress of air as well as by heating.
Patent GB-999197-A (GB)
Title: Improvements relating to holding fixtures for attaching a member to a sheet of material
Inventor: CONNOR FRED HERBERT WILLIAM
IPC: A47C31/08
Filed: 1963-11-26
Abstract: 999,197. Stud and socket fastenings. PITSTONE ENGINEERING CO. Ltd. Nov. 26, 1963, No. 46603/63. Heading E2B. [Also in Division A4] A releasable fastening, e.g. for securing a mattress handle 7 to a mattress wall 1, comprises an expandible stud having a head 6 and body 5 and formed with a socket 10 extending to a transverse slit 12, and a spigot 18, 19 formed with a pair of parallel sides 16, the spigot being received in the socket 10 and forcing apart opposite sides of the slit 12 to expand the terminal portion of the stud behind a stud-receiving eyelet 2. The spigot may be of metal and have a rectangular cross-section. The stud may be of polyethylene or high impact polystyrene. Specification 937,350 is referred to.
Patent GB-1525399-A (GB)
Title: Latex composition
IPC: C08J9/30
Filed: 1975-12-02
Abstract: 1525399 Foams derived from frothed latex/ surfactant blends DOW CHEMICAL CO 2 Dec 1975 46943/75 Heading C3C A latex composition contains a surfactant composition comprising an aq. solution of (a) an alkali metal, ammonium or magnesium salt of lauryl sulphate or mixtures thereof and (b) a mono-n-butyl ether of ethylene glycol. The latex composition is foamed by frothing and is then dried. In the examples (4-11) mixtures of the above ether and sodium, magnesium, ammonium or potassium lauryl sulphate are blended with mixtures of styrene/butadiene/ itaconic acid, acrylic, or styrene/butadiene copolymer latices and calcium carbonate, a polyacrylate and/or tetrasodium pyrophosphate and the mixtures were frothed. The froths may be applied to textile articles, e.g. carpets, and dried to form a backsize.
Patent GB-1087397-A (GB)
Title: Preparation of electroluminescent films using metal substrates
Inventor: VECHT ARON
IPC: H05B33/10
Filed: 1964-11-18
Abstract: An electroluminescent screen is made using a molybdenum or tantalum foil as a support on an electrode by embedding the foil in activated zinc sulphide with an added halide (e.g. NaCl), and heating to 600-1050 DEG  C. to produce a film of zinc sulphide on the surface of the foil. Activators mentioned are copper, zinc and manganese, and most of the phosphors described are stated to emit general low A.C. frequencies changing to blue at 1000 c.p.s. Manganese activated foils are stated to be D.C. electroluminescent.  Molybdenum foil with included zinc sulphide layer can be mounted with a sheet of conducting glass, a sheet of mica and a contact layer of castor oil to form an electroluminescent cell.
Patent GB-1217880-A (GB)
Title: Lateral transistor with auxiliary control electrode
IPC: H01L29/00
Filed: 1968-10-04
Abstract: 1,217,880. Lateral transistors. RCA CORPORATION. 4 Oct., 1968 [13 Oct., 1967], No. 47117/68. Heading H1K. In a lateral transistor with a substantially annular base region an insulated gate control electrode is disposed over at least part of the base region. In one embodiment in which the emitter and collector are shallow diffused regions they are connected by a thin surface web of the same conductivity type at zero bias but application of an appropriate bias to the control electrode converts this into a base region by surface inversion. In the principal embodiment, Fig. 1, the square emitter 6 and asymmetrical square frame collector 7 are formed by diffusion in a portion of epitaxial N layer 3 isolated by a P + diffused wall extending to the P substrate. Deposited aluminium electrodes 9, 10, 16 extending over a surface oxide layer contact the collector, emitter, and control electrodes while base electrode 12 contacts a U-shaped N+ layer 11. Cross-overs may be avoided by making electrode 16 U-shaped, but it is more effective if it covers the entire base region. The emitter and collector regions may be interdigitated and their roles reversed. By application of suitably poled control signals, the device may be used as a switch or a variable gain amplifier.
Patent GB-1499310-A (GB)
Title: Process for the production of dichlorophene
IPC: C07C37/20
Filed: 1976-11-15
Abstract: 1499310 Process for the production of dichlorophene BAYER AG 15 Nov 1976 [17 Nov 1975] 47458/76 Heading C2C Dichlorophene is prepared by reacting pchlorophenols with an excess of formaldehyde in aqueous sulphuric acid whilst essentially excluding oxygen, and using a reaction temperature of 45 to 75 C. in which 1 to 6% by weight of the total amount of p-chlorophenol are first introduced, at the beginning of the reaction, into 40 to 70% strength by weight sulphuric acid, and the formaldehyde and the p-chlorophenol are then added, at a substantially constant ratio, in such a way that at the end of the addition of the p-chlorophenol only 85 to 98% by weight of the total amount of the formaldehyde has been added, and the remaining formaldehyde is then added.