baber/WOPTO huggingface dataset:
Patent GB-1056718-A (GB)
IPC: F16K31/68
Abstract: 1,056,718. Valves. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb. 18, 1965 [Feb. 20, 1964], No. 7122/65 Heading F2V. A thermally actuated valve, not shown, for controlling the gas supply to a burner comprises a main passageway via an inlet 2, opening 8, and outlet 3, and a second passageway via inlet 2, by-pass passage 4, opening 12 and outlet 3. The opening 8 is disposed in a piston 7 and the opening 12 in a piston 6. Closure members 24 and 30 control flow through the openings 8 and 12 respectively. A liquid thermal element 22, which is heated directly or indirectly by the combustion of the gas, is connected to a bellows 21, which is connected to the closure 24 progressively to control the flow through the opening 8. A snap-action membrane 14 is disposed between the pistons 6 and 7 so that when the member 24 has been moved to the fully closed position further pressure exerted by the bellows 21 causes the piston to bear on the membrane 14, snapping it to the position shown chaindotted. The member 30 is then moved to close the opening 12. A reduction of pressure exerted by the bellows 21 allows the membrane 14 to snap back and force the member 30 off the opening 12. The distance between the bellows 21 and opening 8 may be varied by the nut 33 and a regulating valve 27 is disposed in the by-pass 4.
Patent GB-1069457-A (GB)
Abstract: 1,069,457. Electric selective signalling. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 15, 1965 [June 30, 1964], No. 25185/65. Heading G4H. The invention relates to scanning binary devices with pulses and multiplexing those pulses which pass through the devices. Bi-polar (i.e. positive-then-negative) pulses are applied to six scanning lines in turn, to sample binary devices (e.g. switches) via respective diodes. Positive or negative pulses (depending on the orientation of the diodes) passing through closed switches are sampled in turn by one or more commutators, or just passed to combining circuits which also receive commutator output to produce mixed positive and negative output pulse train(s). The or one of the commutators also receives positive pulses from an address matrix fed from some of the six scanning lines, to incorporate pulses identifying switches or groups of switches (stations) into the output pulse train(s). The scanning lines also feed a set of diodes to produce a sine wave for clocking purposes at the locality to which the output pulse trains are fed. Different switches are sampled at different rates.
Patent GB-1095429-A (GB)
IPC: B01L9/06
Abstract: 1,095,429. Test tube rack. AUTOKEMI A.B. May 16, 1966 [May 17, 1965], No. 21543/ 66. Heading B1X. In a test tube rack having at least two parallel horizontal members (2, 3, 5) supported by vertical members, the lowermost horizontal member not being provided with holes for the tubes, one of said horizontal members has projections (6) and corresponding indentations (7) so that a pair of racks, when placed together, interengage. In the illustrated embodiment, to which the above numerals refer, the uppermost member overlaps the vertical supporting members and is turned down to provide hooks (11, Fig. 1, not shown) by means of which the rack can be supported on a pair of bars (12); flanges (14, 15) are provided on one side of an upper pair of horizontal members to support an identification plate (16); the supporting members also have projections (17) (Fig. 2, not shown) and corresponding indentations (18); and a channel (19) is provided in the bottom member to guide the racks when being placed together. The racks are intended for use in an analysing machine.
Patent GB-1226529-A (GB)
IPC: C09C1/48
Filed: 1969-06-26
Abstract: 1,226,529. Treating carbon black. CABOT CORP. 26 June, 1969 [2 Aug., 1968], No. 32273/69. Heading C1A. Carbon black, having first been treated with an oxygen containing mineral acid or an anhydride thereof is treated with ammonia so that the pH of the resulting black is increased by at least 0À5 of a point. The NH3 may be added as a gas, as an aqueous solution, or as a liquid the treatment preferably being performed at an elevated temperature, e.g. 150‹ F. with constant agitation of the black. If desired the black may also be treated with air or steam after treatment with the acid. Acids exemplified are HN0 3 , H 2 SO 4  or mixtures thereof and their corresponding oxides. Nitrous acid, sulphurous acid and hypochlorous acid are also mentioned. The final pH of the black may be between 3.0 0 and 7.0.
Patent GB-1229618-A (GB)
IPC: C07C231/06
Filed: 1968-07-24
Abstract: 1,229,618. N: N - Dialkylamides. ASAHI KASEI KOGYO K.K. 24 July, 1968 [15 Aug., 1967; 16 Nov., 1967], No. 35289/68. Heading C2C. N: N - Dialkylamides RCONR<SP>1</SP>R<SP>1</SP> where R is a hydrogen atom or an alkyl group, preferably of from one to six carbon atoms, and R<SP>1</SP> is an alkyl group of from one to four carbon atoms are prepared by reacting a nitrile RCN with an alcohol R<SP>1</SP>OH under superatmospheric pressure, preferably in the presence of a catalyst and at a temperature between 50 and 1000 C., more especially from 100-500 C. Any N - monoalkylated amide obtained as by-product can be recycled. The catalysts include (a) copper, silver, gold, zinc, cadmium, mercury, titanium, zirconium, tin, lead, vanadium, antimony, bismuth, chromium, molybdenum, tungsten, manganese, iron, cobalt, nickel, ruthenium, rhodium, osmium, platinum, iridium or palladium metals, their oxides, hydroxides, peroxides, oxyhalides, sulphides and inorganic or organic salts; (b) chromic acid, bichromic acid, molybdie acid, phosphomolybdic acid, tungstic acid, and permanganic acid or salts thereof with the above metals or alkali metals. Examples detail the preparation of N,N - dimethyl - formamide, -acetamide, -propionamide, and -n-caproamide, N,N - diethyl - propionamide, and N,N - di - nbutyl-acetamide employing various catalysts.
Patent GB-1229761-A (GB)
IPC: F27D15/02
Filed: 1970-01-13
Abstract: 1,229,761. Cooling cement clinker &c. FULLER CO. 13 Jan., 1970 [13 Jan., 1969], No. 1723/70. Heading F4B. A heat exchanger grate, e.g. for cooling hot slag or cement clinker, comprises alternate and overlapping fixed and movable grates 17 mounted on support frames 18, and each support frame has no portion which contacts a grate at a point forwardly of substantially the midportion of the grate. Each grate has a reinforcing flange 20 depending from each side with a downwardly-protruding extension 21 having a hook-like engaging portion 28<SP>1</SP> which interlocks with an aperture (not shown) in the wall of the support. Bolts 19 secure the grates to the supports. Cooling air passes upwardly from a lower plenum chamber through apertures in each grate to the material to be cooled.
Patent GB-1229817-A (GB)
IPC: B44B5/00
Filed: 1968-07-22
Abstract: 1,229,817. Embossing. MODERN ENGRAVING & MACHINE CORP. 22 July, 1968 [21 Aug., 1967], No. 34911/68. Heading B6J. [Also in Division F2] In a roller-type embossing or engraving machine the drive is communicated from upper driven roller 16 to the lower roller 14 through gears 34, 36, one of which carries a circumferential ridge 38 and the other of which carries a mating groove 40, thus ensuring axial alignment of the rollers. Gear 34 may comprise two independent (helical) gears 34<SP>1</SP> and 34<SP>11</SP> and gear 36 may be a double helical or herringbone gear. This arrangement permits gear 34<SP>11</SP> to be turned relative to gear 34<SP>1</SP>, thus wedging gear 34 with gear 36 to prevent backlash and maintain circumferential alignment between the rollers. When gears 34 and 36 are locked in alignment roller 14 and its shaft 20 may be rotated relative to gear 36 to effect registry adjustments between rollers 14 and 16. In the production of an embossing roller 14 from a master roller 16, the roller 14 is passed through an acid bath 62 while the rollers are held in alignment by a gear arrangement 34, 36 as described above. Fig. 6 shows the production of a further mating embossing roller 16 from the first roller formed from the master (now designated 14). Acid bath 66 refines the fit between gears 34 and 40.
Patent GB-1232365-A (GB)
IPC: A43B13/22
Filed: 1970-01-27
Abstract: 1,232,365. Boots &c. SEMPERIT A.G. 27 Jan., 1970 [28 1, 1969], No. 3807/70. Heading A3B. A sole and/or heel made of rubber or synthetic resin has a tread surface which includes at least one longitudinal rib 3, 3<SP>1</SP> which extends the full length of the sole and/or heel and is spaced from the lateral edges thereof, and a plurality of transverse ribs 30 which form an angle a with the rib 3 or centre line of not more than 90 degrees. The grooves 4, 4<SP>1</SP> between the ribs 30 may be straight, curved or zig-zag shape and may vary in width or depth along their length. The rib 3 may be straight, curved or zig-zag shape. Two longitudinal ribs may be provided. Additional ribs may extend along the lateral edges of the sole and/or heel. Various examples of sole patterns are illustrated in the drawings.
Patent GB-1233350-A (GB)
IPC: B29C48/92
Filed: 1968-04-01
Abstract: 1,233,350. Electro-physical measurement. INDUSTRIAL NUCLEONICS CORP. April 1, 1968 [April 12, 1967], No.53738/68. Divided out of 1,228,001. Heading G1N. [Also in Division G3] A signal from a gauge, dependent on a property of a travelling sheet, is applied through a filter to attenuate the effect of periodic variations of the property along the length of the material, the frequency response of the filter being automatically adjusted in dependence on the speed of travel of the sheet. In Fig.1 a former 10 receives raw material at 12 and produces a continuous length 16. Variations of a physical property such as thickness or moisture content are detected at 18, indicatedat 23 and corrected through an automatic control system 22-24 acting on former 10 either continuously or intermittently with a delay at 28 at least equal to the time required for the material to travel from former 10 to gauge 18. Variations due to operation of former 10, having frequencies higher than those to which the automatic control system can respond, are eliminated by a low-pass filter 34, e.g. of the resistance-capacity thyratron type. The cut-off frequency of filter 34 is adjusted manually or by a servosystem 40 to correspond with the speed of the material as measured by a tachometer 36. Several filters of the band-pass type adjusted simultaneously by servosystem 40 may replace low-pass filter 34 to reject the undesired frequency components.
Patent GB-1238163-A (GB)
IPC: B01J2/22
Filed: 1969-03-05
Abstract: 1,238,163. Granulating. KLOCKNERHUMBOLDT-DEUTZ A.G. 5 March, 1969 [7 March, 1968], No. 11706/69. Heading B2A. Pulverent or crystalline substances are granulated by compressing into slabs by rolling, and comminuting the slabs in at least two stages by means of impact or hammer mills 3, 7, the last stage mill or mills 7 being operated in a closed circuit with a classifying device 4, and the peripheral speed of the beater arms or hammers of the last stage mill or mills 7 being at least 1.25 times that of the mill or mills 3 in the preceding stage. Slabs from a rolling mill 1 pass over a screen 2 to separate fines, entering a first mill 3, driven at a peripheral speed of about 18 metres per second. The classifier separates fines for re-rolling, and finished product 5, oversize material being piped 6 to a second mill 7, of about 22 metres per second peripheral speed, while a pipe 8 diverts material to the first mill 3 if the second becomes overloaded. Potassium salts or rock salt may be treated.
Patent GB-1239256-A (GB)
IPC: H01F29/10
Filed: 1968-10-04
Abstract: 1,239,256. Measuring displacement. KENT. INSTRUMENTS Ltd. Oct.3, 1969 [Oct. 4, 1968], No.47148/68. Heading G1N. [Also in Division H1] A variable differential transformer has air-gaps, adjustable in the same sense, between its armature(s) and stators, this adjustment altering the sensitivity of the transformer to a movement of the armature(s), which movement produces a differential variation of the air-gaps. In Figs. 1 and 2 an armature 9 secured to a bifurcated lever 8 is situated between a pair of U-shaped stators 12. The armature(s) and stators may be laminated and of ferrite. The lever connected to a cross-bar .4 by a pair of flexure pivots 6, has leaf springs 15 preventing transverse motion and a counterweight 11 preventing vibration and gravity effects. A mechanical input to the armature in the direction of arrow 10 is detected by one of two windings on the stators 12. The sensitivity of the transformer can be adjusted by relative movement of the stators and armature in the direction of arrow 10 or perpendicular to that direction. For the latter adjustment, stator and armature corresponding faces are inclined to the perpendicular with the movement of the armature controlled by screw 20. In a second embodiment, Fig. 3 (not shown) two armatures are disposed on a pivoted lever, opposite their respective stators which can be raised or lowered together by cam followers associated with a rotatable grooved disc attached to the armature support levers.
Patent GB-1250196-A (GB)
IPC: G05B13/02
Filed: 1968-10-10
Abstract: 1,250,196. Automatic control. INDUSTRIAL NUCLEONICS CORP. Oct.10, 1968 [Nov.6, 1967], No.48099/68. Heading G3R. In a system in which variations of a property of material issuing from processing apparatus are detected and compared with a set value so that any difference is effective to restore the property to the set value, the variations are examined on a statistical basis by a computer which computes the statistical variance and correspondingly adjusts the set value so that it is nearer a limit value when the statistical variance is small than when it is large, the limit seldom being exceeded in consequence. In Fig.6, an instrument 16 produces signals dependent on a property, e.g. thickness or moisture content, of material 14, e.g. rubber tyre layers, rolled steel strip, tin plate or paper, being produced or processed at 10. One of these signals is applied through a line 18a for comparison with the set value X d  of the property so that any error is effective, through a controller 20a, to operate a motor 56 for periods corresponding to the magnitude of the error to restore the property to its set value. Measured values of the property are also sampled periodically through a line 18 by an analogue or digital computer 30 which analyses the values, which form the curve y = f 1  (x) of Fig.3 for example, so that a square root digital or feedback capacitor analogue computer 44 may determine the bandwidth #1 at the point of inflexion of the curve. This bandwidth is multiplied by a factor, e. g. 3, at 46 and, if required, a constant quantity added from a manually set or punch card unit 50 so as to compute the amount by which the set value should exceed the minimum value to provide a desired factor of safety. This amount is added at 48 to the minimum value X L  from a manually set or punch card unit 40 to produce a set value X d . So, if the quality of production improves, e. g. due to better raw material producing a curve of statistical variation y = f 2  (x), detection of a smaller width # 2  causes the set value to be brought nearer to the limit X L  e. g. to reduce cost with safety. During each computation of a set value, a unit 68 integrates the difference between measured values of the property and the previous set value so that if the integral exceeds by more than a predetermined amount the integral of a constant selected at 66, an alarm is operated and a suitable correction applied to the set value before the normal time through line 70. Other arrangements for operating the alarm are described, the simplest involving operation if a predetermined number of property measurements exceed a limiting value. To facilitate starting up, unit 64 is initially set to an estimate of the statistical bandwidth. The control system may alternatively or in addition adjust the set value relative to a maximum permissible value of the property. Analysis of statistical curves of more complex shape and automatic variation of controller gain in dependance on the statistical analysis are referred to.
Patent GB-1252198-A (GB)
IPC: C10L1/182
Filed: 1969-12-16
Abstract: 1,252,198. Gasoline. ESSO RESEARCH & ENG. CO. 16 Dec., 1969, No. 61226/69. Heading C5G. Fuels comprise gasoline having an aromatic hydrocarbon content of 15-70 vol. per cent + 3  -7 vol. per cent of a C 3 -C 6  unsaturated alcohol or benzyl alcohol. Allyl and crotyl alcohols are specified.
Patent GB-1253092-A (GB)
IPC: C23F1/00
Filed: 1969-01-27
Abstract: 1,253,092. Semi-conductor devices. HEWLETT-PACKARD CO. 27 Jan., 1969 [20 Aug., 1968], No. 4517/69. Heading H1K. Fig. 3 shows a part-way stage in the production of an NPN silicon microwave transistor. A diffused base region 16 has been formed in the epitaxially formed part 12-of the collector region 12, 14 (Fig. 7) and has been provided with two highly doped contact regions 18. The N-type emitter zone 22 has been diffused through the aperture in an oxide mask 20 and a much thinner oxide layer 26 has been grown to cover the emitter aperture. The oxide layers have been opened to expose regions 28 for the provision of base contacts. Platinum is then sputtered over the entire surface and the coated wafer heated to form platinum silicide base sub-contacts 32 (Fig. 7). Excess platinum is etched away with hot aqua regia (without the need of a mask) to leave the silicide sub-contacts 32. The emitter aperture is then reopened using an agitated buffered etch. A mask is not needed since the oxide 26 over the emitter is very thin. The surface is then sputtered overall with (a) molybdenum 40, (b) molybdenum-gold 42, and (c) gold 44. Emitter and base contacts 46 are then delineated by masked etching. A satisfactory ohmic emitter contact is formed provided the emitter doping level exceeds 10<SP>14</SP> atoms cm<SP>-3</SP>. The proprietary alkaline etching agent is diluted with a viscous non-aqueous liquid (ethylene glycol) to reduce undercutting. (As the etching agent and glycol react together the material must be used within an hour of mixing. If an acid etching agent such as aqua regia is mixed with glycol the mixture must be used still more quickly.) Collector contact is established by successively sputtered layers of chromium 48 and gold 50.
Patent GB-1253182-A (GB)
IPC: C09D155/04
Filed: 1970-02-24
Abstract: 1,253,182. Resinous products. MOBIL OIL CORP. 24 Feb., 1970 [28 Feb., 1968], No. 8766/70. Heading C3B. [Also in Division C7] A resinous reaction product is formed by reacting (A) an adduct of (i) an ester derived from a polyhydric alcohol, especially an epoxy resin, and a drying oil fatty acid with (ii) an ethylenically unsaturated polycarboxylic acid or anhydride, e.g. maleic anhydride, and (B) a resin containing terminal amino or carboxyl groups. Reaction is continued until an organic solvent-soluble reaction product is obtained. The epoxy resin may be a diglycidyl ether of bisphenol A. Drying oil fatty acid, e.g. tall oil fatty acids are present so as to consume at least 75% of the hydroxyl groups of the polyhydric alcohol. The adduct (A) may contain 5-25% by wt. of unsaturated polycarboxylic acid or anhydride. The resin (B) may be a polyamide obtained by self-condensation of an amino acid H 2 N(CH 2 ) n COOH (n#5), e.g. 11- aminoundecanoic acid. Reaction of (A) and (B) may take place at 200-250 C. The resinous product may be dispersed in water by adding a-base, e.g. diethylamine.
Patent GB-1258297-A (GB)
IPC: F02K1/78
Filed: 1969-01-21
Abstract: 1,258,297. Deflecting propulsion jets. UNITED AIRCRAFT CORP. 21 Jan., 1969 [26 Jan., 1968], No. 3420/69. Heading B7G. A jet engine exhaust deflector (with yaw control) for VTOL aircraft comprises a plurality of deflector segments 24 pivoted at 26 and movable from a stored position indicated at B, Fig. 1, to an extending deflecting position as shown at A, and a tongue like body 28 having a discharge edge whose angular position is variable and co-operating with the deflecting segments 24, so as to define the cross-sectional area of the deflected flow path and provide the yaw control. The body 28 when fixed has a rotatable cover 60, Fig. 3b, connected to the body and rotatable from a neutral position where neither slanted edge 62 or 64 is uncovered to a right yaw or left yaw position. In an alternative embodiment with a rectangular body 28 (Figs. 2, 2a, 2b, not shown), corner pieces of the body 28 may be rotated about respective hinge axes which extend from the middle of the discharge edge to respective corners of the opposite edge.
Patent GB-1258316-A (GB)
IPC: A61G15/00
Filed: 1969-02-28
Abstract: 1,258,316. Ophthalmological apparatus. R. RODENSTOCK [trading as OPTISCHE WERKE G RODENSTOCK], Feb.28, 1969 [July 31, 1968], No.10912/69. Heading G2J. An instrument unit for ophthalmological examinations comprises a slidable table 2 bearing a head rest 5 and a slidable table 4 bearing ophthalmological instruments 7. In use the patient's chair 3 and the instruments 7 are adjusted in a vertical direction to bring the patient's eye and the instrument axes level with a mark 6 so that the appropriate instrument 7 may be brought to the operating position merely by sliding table 4.
Patent GB-1264434-A (GB)
IPC: G05B19/31
Filed: 1970-05-04
Abstract: 1,264,434. Programmed control of machine tools. PRATT & WHITNEY Inc. May 4, 1970 [May 5, 1969], No.21350/70. Heading G3N. A system, for moving a plurality of objects with respect to a plurality of respective reference axes to define a resultant path, comprises means for moving each object along its respective reference axis in dependence on a velocity pulse frequency which is a function of the position log of the associated object and the logs of the other object or objects. A numerical control system for controlling the relative movements of a tool and a workpiece is responsive to a continuous tape bearing binary coded commands in parallel columns. The commands comprise a feedrate number, incremental axes movements and an end-of-block code. The feedrate and axes movements are held in temporary store and transferred to active store on demand of an interpolating section. The output of the interpolating section comprises trains of discrete movement pulses, having rates corresponding to a desired velocity of a part, which are fed to digital servosystems for the axes to be controlled to move the tool and workpiece. The system may employ incremental or absolute position measurement. The numerical control system is modified according to the invention by the generation of velocity signals proportional to the log of each axis and a function of the log of all the axes which are used to derive a resultant velocity signal, for each axis, which is applied to the position servosystem. Alternatively, the resultant velocity signals may be applied as pulse frequencies to a servo register of a pulse responsive servosystem. During steady state operation the position log is maintained constant and as the commanded position is reached the ratio velocity to log is maintained equal, at any instant, for all axes.
Patent GB-1264813-A (GB)
IPC: F16K15/06
Filed: 1970-02-26
Abstract: 1,264,813. Valves. A. F. WIGLEY. 26 Feb., 1970, No. 46849/71. Divided out of 1,264,812. Heading F2V. All of the subject matter is contained in the parent Specification but the claims relate to the check valves.