baber/WOPTO huggingface dataset:
Patent GB-1056683-A (GB)
Title: Improvements in or relating to tristable transistor circuits
Inventor: TAUB DANIEL MATHEW
IPC: H03K5/02
Filed: 1964-02-03
Abstract: 1,056,683. Tri-stable circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 21, 1964 [Feb. 3. 1964], No. 4454/64. Heading H3T. A tri-stable circuit is obtained adding a non- linear cross-coupling impedance and a non- linear negative feedback impedance to a bistable circuit having two identical transistor sub-circuits. If the circuit is in its intermediate state, the polarity of the input signal determines to which extreme state it is switched, and a larger signal is required for switching it away from an extreme state. In Fig. 1, two pairs of anti-parallel diodes D4-D7 with further diodes D3, D9 provide non-linear cross-coupling impedances which have a high value when the circuit is in its centre stable state with both transistors conducting equally. The transistors and diodes D1-D3 and D8-D10 are all silicon. A negative pulse at B will cut off T1 and current will flow through R2, D4 and D9 to saturate T2; the same effect is obtained by a positive pulse at C. Pulses of the other polarity will drive the circuit to its other stable state. Resetting to the centre state is brought about by negative pulses applied through silicon diodes to A and D. These pulses cut off D4 (or D6) and the collector voltage of T2 (or T1) rises until D8 (or D2) conducts. The potentials of D (or A) and the base of T1 (or T2) are then restored to their original values. T1 (or T2) and D1 (or D10) then conduct and D7 (or D5) is cut off and the circuit is in its centre stable state. The circuit can also be triggered through a sense amplifier and phase splitter connected to points E and F. The first pulse of a pair of positive pulses will appear at E or F as a negative pulse and will drive the circuit to one of its side stable states. The second pulse appears positive at E and negative at F or vice versa and will have no effect. In another method, negative triggering pulses are applied at B or C; for this to be effective the currents through R3 and R6 should be twice those through R1 and R4 and very large compared with the base currents; the former currents should divide equally between D1/D2 and D10/D8, the pulse causing the D1 or D10 current to fall to zero and correspondingly increasing that through the other diode. PNP transistors can be used with appropriate modification of the current sources and diode polarities.
Patent GB-548355-A (GB)
Title: A mechanism for producing a combined wavering and rotating movement
IPC: B01F11/00
Filed: 1941-04-03
Abstract: 548,355. Ball mills; mixing appliances. SCHATZ, P. April 3, 1941, No. 4469. [Classes 59 and 86] [Also in Groups XXIV, III, XXII and XXIII] Mechanism for producing a combined wavering and rotating movement of a receptacle, e.g. a ball mill, comprises at least one link of a closed positively invertible kinematic linkwork, which link serves as the receptacle, a supporting device and driving means for the linkwork, the parts of the mechanism being so disposed that the receptacle is constrained to participate in the movement of the linkwork. The invertible chain is composed of six links 1 .. 6 of equal length and two links forming parallel running shafts 7, 8 The axes of the link pivots are indicated as 1, 2-2, 3, 3-8 &c. The axes of the pivots, 1, 7 and 1, 2-1, 2 and 2, 3 &c. are skew to one another, but the axes of pivots 3, 8 and 8, 4 are parallel to each other. Links 2 and 5 form supports for, or may themselves form receptacles, e.g. barrels A, B. A constructional form is shown in Fig. 2, which corresponds to the right-hand half of Fig. 1 turned anticlockwise through 90 degrees. The references in Fig. 2 are obtained by adding the number 8 to those of corresponding parts in Fig. 1. Links 12, 14 are' formed as prongs having pivotal connections 16, 12 and 14, 15, at rightangles to each other, with shafts 33, 34 journalled in a base 19 and rotated by a motor M at equal speeds in opposite directions. The prongs are also pivoted at 12, 13 and 13, 14 to the link 13 in the form of a cage in which a receptacle such as 20 can be secured by a handwheel 21 and plates 23, 24. During a half rotation of shafts 33, 34 the centre of gravity 35 of the receptacle described a figure of eight, Fig. 3, and during a quarter rotation moves, from 36 to 37, the receptacle at the same time rotating about its own axis. The invention is applicable to mixing and butter making. The whole apparatus may be installed in an oven or refrigerator. It may, in the 'case of household or laboratory sizes, be hand driven.
Patent GB-195230-A (GB)
Title: Tobacco pipes
IPC: A24F1/00
Filed: 1922-02-15
Abstract: 195,230. Hesson, W. W. Feb. 15, 1922. Tobacco pipes.-A plastic aqueous mixture comprising ground woody material, a binder, mainly of silicate of soda, and a hardener of a clay nature is moulded under pressure to form a tobacco pipe. The mixture may, for example, be composed of ground corn-cob or briar-root or other woody dust, tan-bark, balsam gum, shellac, and Epsom salts. Nicotine flavouring may be added. An aluminium or other stem 1 having a concave disc 3 and a reinforcing-piece 4 is embedded in the pipe, which, after moulding, is dried in an oven.
Patent GB-371982-A (GB)
Title: Improvements in and relating to cases for cigarettes and similar objects
IPC: A24F15/14
Filed: 1931-02-13
Abstract: 371,982. Cases for cigarettes &c. MATZKA, O., 55, Fasangasse, Vienna. Feb. 13, 1931, No. 4554. Convention date, Feb. 13, 1930. [Class 18.] In a case for cigarettes &c. or a refill for a case in which the cigarettes are fed by a spring- actuated feeding device towards a spring-controlled ejecting device, the feeding device consists of a rectangular ram with side and end surfaces contacting with the walls of the case or refill, the ram being moved towards the ejecting device by an elastic band. As shown in Fig. 1, the refill frame 2 is of sheet metal and has a folded portion 10 housing the spring- controlled ejector 19 which is actuated by a button 16 projecting through a slot 17 in the housing and the ram 4 is actuated by the endless rubber band 5 which passes across the top and down the ends of the ram and through slots 6 in the sides 7 of the frame ; the frame is fitted into a case having an opening for the issue of a cigarette 20 and a slot registering with the slot 17. In a modification the frame is made of cardboard with a sheet metal housing for the ejector attached thereto by turned-over tongues and the rubber band passes longitudinally of the frame around the ram, cigarette and ejector housing ; the case into which the frame is inserted is closed by an end flap having a slot registering with the slot in the ejector housing. A case 1, Fig. 5, for cigarettes has two internal U-shaped channel members 26, 27, between which the cigarettes are guided to the ejector 19 which is housed in a sleeve 8 attached to the base of the case by tongues 21. The elastic band 5 passes longitudinally of the case around the ram and sleeve 8 and is shown held by one of the flaps 28 of the case while the latter is opened for filling ; the member 27 is tapered towards its upper end so as to provide a space 24 for the band at each side of the case. The cigarettes may be provided with consecutive numerals visible in turn through an opening 29 in the case covered with transparent material. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a case having springs engaging depressions in the ends of the ejector housing to retain the refill frame in the case, the cigarettes being fed to the ejector by a zig-zag leaf spring provided at the bottom of the case. This subject-matter does not appear in the Specification as accepted.
Patent GB-559262-A (GB)
Title: Improvements relating to road vehicles
IPC: B62K7/00
Filed: 1942-04-08
Abstract: 559,262. Spring suspension for vehicles. WADE, B. S. April 8, 1942, No. 4583. [Class 108 (ii)] In a box-tricycle and like vehicle having the loadcarrying part in front and steerable by a driver seated at the back, the forward end 13 of the chassis is sprung along with the load-carrying part 14 so that the two move together. Laminated springs 19 hinged at 21 to the platform 14 and sliding at their front ends 22 in slots beneath the platform are fixed at their middles to an axle 20 the ends 23 of which are turned up to support the non-rotating wheel spindles 24. Fixed beneath the platform 14 by brackets 18 is a cross-shaft 17 to which is fixed the steering column 16 turning in a forwardly-inclined head 15 rigid with the frame 13. The middle point of the column 16 is located slightly ahead of the spindles 24 to ease the steering, and between the shaft 17 and axle 20. The centre of the platform 14 is located substantially over the centre of the shaft 17. An A.C. or electric motor may be fitted for driving the vehicle, in place of pedalling gear.
Patent GB-299656-A (GB)
Title: Sprinkling stopper for bottles and the like
IPC: B65D47/26
Filed: 1928-02-14
Abstract: 299,656. Legradi, T. Feb. 14, 1923. Stoppers with valves.-A sprinkling closure for bottles &c., composed of cork, glass, porcelain, or other non-metallic material through which the liquid to be sprayed is exclusively conducted, comprises a stopper b adapted to be placed on the normally unrestricted neck f of the bottle &c. and formed with a central spraying aperture a from which proceeds an obliquely disposed channel d which coacts with an obliquely disposed groove g in the neck portion, the stopper being rotatably connected to the neck by an encircling ring c. A projection on the ring engages in a groove l in the neck to limit the rotation of the stopper. The closure may be detachable from the bottle, the ring c, Fig. 5, taking the form of a metal cap formed with a flange which is made resilient by vertical slits i extending across an annular indentation h adapted to engage in a groove k in or beneath the lip of the bottle neck.
Patent GB-1101556-A (GB)
Title: Method of and apparatus for forming grooves in roll dies
Inventor: ROSS HORACE KENNETH
IPC: B24B17/02
Filed: 1966-02-03
Abstract: 1,101,556. Grinding; making die rolls; lathes. T. I. STAINLESS TUBES Ltd. 14 Dec., 1966 [3 Feb., 1966], No. 4745/66. Headings B3A, B3B, B3D and B3T. A method of forming tube-receiving grooves 12a, 13a in roll dies 12, 13 used for the reducing of tubes, the dies being of generally semicircular configuration, comprises mounting the dies back-to-back in a rotatable holder 11, cutting a groove of varying width and depth in each die by means of a rotatable and reciprocable tool controlled by a first cam so that the adjacent ends of the two grooves thus formed are of the same width, and performing a finishing and relieving operation on the grooves whilst the dies remain in the holder by means of a grinding tool 22 controlled by a second cam 23. The dies are mounted between flanges 11b, 11c on a shaft portion 11a of the holder and retained by keepers 14. The holder is mounted on a lathe 10 and a turning tool is reciprocable towards and away from the dies under the control of a first cam and is mounted for rotational movement about a vertical axis so that each die is formed with a groove of varying width and depth, the narrow ends of the grooves being adjacent. The turning tool is replaced by a grinding wheel for an intermediate operation under the control of the first cam to produce true semicircular grooves. Thereafter, the first cam is replaced by a second cam 23 which controls the movement of the grinding-wheel to form the desired relief on the groove sides.
Patent GB-778927-A (GB)
Title: Resinous reaction products of phenyl-glycidyl ethers and resols
IPC: C08G65/28
Filed: 1955-02-17
Abstract: Glycidyl polyether-resol reaction products which, when dissolved in the usual organic solvents and applied to surfaces as coatings, bake hard when heated to 140-230 DEG C. in 5 minutes to 3 hours, are obtained by heating at 80-170 DEG  C. for up to 4 hours without gelation a mixture of a glycidyl polyether, obtained by heating epichlorhydrin and a dihydric phenol in presence of alkali, and an etherified resol derived from mono- or polyhydric phenols and having more than two -OH groups per molecule, th polyether and resol being present in weight ratios between 60/40 to 90/10 .  The reaction may be carried out with the reactants in the molten condition but preferably they are dissolved in solvents, e.g. cellosolve acetatetoluene or diacetone alcohol-xylene mixtures; acid catalysts may be present, e.g. phosphoric acid, p-toluene sulphonic acid, benzene disulphonic acid, oxalic acid.  In examples a glycidyl polyether and a resol are dissolved in a mixture of the ethyl ether of ethylene glycol acetate and toluene and the mixture heated to 120 DEG  C. for 3 hours.  The resols may be prepared as follows: (1) a mixture of 100 parts 30 per cent formaldehyde, 10 parts 25 per cent ammonia and 100 parts phenol was heated at 65-70 DEG  C. for one hour; the resin layer was separated and dehydrated under vacuum at 75 DEG  C. and then heated with an equal volume of butanol for 3 hours at 120 DEG  C. (3) 334 Gs. 2.2-bis-(4-hydroxyphenol) propane, 584 gs. 39 per cent formaldehyde and 354 gs. 33 per cent NaOH solution were heated at 40 DEG  C.  After standing for 6 days 260 gs. of 53 per cent sulphuric acid were added and, on standing, the resin layer was seaparated, washed, neutralized and dried in vacuo.  The product obtained was dissolved in butanol, dehydrated by distilling off azeotropically a mixture of water and butanol adding more butanol and continuing the distillation until the temperature reached 120 DEG  C. Specifications 636,696 and 692,937 are referred to.
Patent GB-415080-A (GB)
Title: Improvements relating to gas fire radiants
IPC: F24C15/24
Filed: 1933-02-16
Abstract: 415,080. Gas-fire radiants. NICHOLLS, F. G., 444, Woolwich Road, Charlton, London. Feb. 16, 1933, No. 4835. [Class 126.] The studs designed to project inwardly into the path are formed not only on the front and back walls of the radiant but also on its sides. As shown in Fig. 3, the section of the radiant is rectangular, but other sections may be used. Further, the depth of the radiant decreases with its height and at the top it is formed with a hollow shoulder portion E having a solid top face c, Fig. 1.
Patent GB-1000023-A (GB)
Title: Semi-conductor devices
Inventor: LANGRIDGE ARTHUR
IPC: H01L21/52
Filed: 1963-02-06
Abstract: 1,000,023. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Jan. 24, 1964 [Feb. 6, 1963; March 21, 1963], Nos. 4840/63 and 11252/63. Heading H1K. A semi-conductor wafer 5, Fig. 1A, containing a PN junction is mounted (bonded or unbonded) on a conducting base 1, is surrounded by an insulating annulus 13 secured-as by a bracket 12-to the base, and has an unbonded electrode 8 on its upper face. This electrode is carried by a conducting diaphragm 9, e.g. of beryllium copper, secured at its periphery to the annulus 13 and urged towards the wafer by external resilient means. In Fig. 2A this means is a spring 25 incorporated in a heat-dissipating mounting frame 20 within which the assembly of Fig. 1A may be mounted base down, as shown, or base up. In Fig. 2B the wafer 4 has two junctions and electrode connections with the copper base 1, the diaphragm 10 and a wire 30 which passes through the hermetically sealed insulator 34. It is shown mounted in a heat dissipating frame 20 which may incorporate cooling fins (not shown) and within which the resilient means for the unbonded contact with diaphragm 10 is provided by a spring washer 23. The wafer may be a diode, in which case the central aperture 33 in the diaphragm, the insulator 34 and the wire 30 will be omitted. Fig. 4B shows a diode 4 in an alternative mounting to which it may be permanently or detachably secured, the electrodes being the base 51 of the mounting and a conducting stem 65 which is fitted on the diaphragm 10 and urges it onto the diode under the action of spring members 66. The stem 65 may be made hollow to accommodate a wire, such as the wire 30 of Fig. 2B, for use of the same mount with three electrode devices.
Patent GB-140568-A (GB)
Title: Improvements relating to electrodes and welding and like rods used in soldering and depositing metals
IPC: B23K35/02
Filed: 1919-02-26
Abstract: 140,568. Jones, E. H., and Alloy Welding Processes. Feb. 26, 1919. Heating by electricity.-Electrodes for arc welding, soldering, or depositing metals are formed by uniting two or more metals or alloys in parallel arrangement by casting one in or about the other or others, or by brazing, soldering, or welding, the rod thus formed being then covered with asbestos or other second-class conductor. As shown in Fig. 2, two wires a are united to another metal or alloy b by casting. In the arrangement shown in Fig. 5, one metal b is cast in a metal c of channel section. In the arrangement shown in Fig. 6, two rods a, d are united by brazing, soldering, or welding. The wires may be nickelplated. According to the Provisional Specification, two wires may be bound together with a material or metal which unites with the deposited alloy or burns away. Specifications 14468/15 and 109,652, [Class 83 (iv), Metals, Working], and 119,096 and 119,279 are referred to.
Patent GB-1373324-A (GB)
Title: Benzo-1,2,4-triazine derivatives
IPC: A23K20/195
Filed: 1973-01-31
Abstract: 1373324 Benzo-1,2,4-triazine N-oxides BAYER AG 31 Jan 1973 [1 Feb 1972] 4853/73 Heading C2C  Compounds, all but one of which are novel, of the Formula I (in which each of R and R<SP>1</SP> is H, halogen, alkyl, substituted alkyl, alkoxy, carbamoyl, sulphamoyl, carboxyl or alkoxycarbonyl) are prepared by reacting a benzofuroxane of Formula II with cyanamide in the presence of a base or with a salt of cyanamide, in a polar diluent, at 0 to 180 C., to produce a salt of the desired compound, and converting the salt to the desired compound by acidification. The known compound is that in which R and R<SP>1</SP> are both H. Pharmaceutical compositions having antimicrobial and growth promoting activity comprise a compound of Formula I together with a diluent. The compositions may be administered orally, parenterally, rectally or topically.
Patent GB-214775-A (GB)
Title: Improvements connected with gas taps and gas regulators of incandescent burners
IPC: F23Q9/00
Filed: 1923-02-20
Abstract: 214,775. Charles, W. J. Feb. 20, 1923. Incandescent g a s burners; burners, regulating and controlling. -A combined gas cock and nipple regulator for an incandescent burner comprises a metal body a provided with a plug-cock c<2>, operated by means of a rocking-beam and chains or the like, and with a peg-member f adapted to be reciprocated by a transverse shaft h arranged, preferably at rightangles to the axis of the plug c<2>, so as to be clear of the operation of the rocking-beam. The peg-member f, preferably constructed as described in Specification 188,089, is inserted in an axial recess e, the lower end of which is then closed by a screw-cap g having a nipple outlet. A bye-pass d may be provided.
Patent GB-1320479-A (GB)
Title: Data input key apparatus
IPC: H03K17/98
Filed: 1972-02-02
Abstract: 1320479 Keyboards SONY CORP 2 Feb 1972 [4 Feb 1961] 4958/72 Heading G4H [Also in Divisions H1 and H3] A non-contact making keyswitch comprises an electret transducer 11, Fig. 1, connected to an FET 19, the output from the FET controlling a further FET which can short-circuit the transducer output so that when the transducer key 16 is pressed the FET 19 gives a single short pulse. The electret in Fig. 1 is negatively charged, so that when it is pressed electrons flow into the gate of FET 19 and turn it on. The circuit 22 delivers a standard output pulse, and also activates the short-circuiting FET 25. When the key is released electrons flow back on to plate 15 of the transducer 11 via diode 26. Two such electret transducers may be connected to the same FET, Fig. 2 (not shown), and may be operated largely independently because of the rapid operation of the short-circuiting FET. In Fig. 3 a fixed electret 13c is used with two fixed capacitor plates 115c and 115<SP>1</SP>c; when plate 15c is moved by key 16c two outputs from the associated FET circuitry 12c, 12<SP>1</SP>c are obtained at 23c, 23<SP>1</SP>c. Alternatively a moving electret may be combined with two fixed plates, Fig. 4 (not shown).  A matrix of the double output keys may be used to represent decimal numbers and control instructions in a computer or calculator, Fig. 5, where one output of a key K1-K32 is connected to a respective row FET circuit and the other is connected to a respective column FET circuit. Each key, when pressed, thus gives a signal on the appropriate pair of row and column FETs.
Patent GB-564325-A (GB)
Title: Improvements in or relating to cans or containers
IPC: B21D51/26
Filed: 1943-03-29
Abstract: 564,325. Cans. O'SHEI, W. E. March 29, 1943, No. 5020. [Class 66] [Also in Group XXII] Petrol, oil, and paint, &c. cans are made in halves 1 with narrow projecting flanges 2 united by seam welding by roller electrodes. To enable the can to stand a number of recesses 4 are embossed to receive feet 5: If welding rolls at an inclination are employed then the feet 5<1>, Fig. 3, may be embossed from the material of the can. In a modification, the can is shaped so that the flange does not project beyond the outer sides. The feet may be stamped in supporting bands bent round the can and united by screws, rivets, &c., or by spot welding.
Patent GB-1353113-A (GB)
Title: High energy density battery
IPC: H01M10/0569
Filed: 1972-02-03
Abstract: 1353113 High energy density cell with Li anode E I DU PONT DE NEMOURS & CO 3 Feb 1972 [3 Feb 1971] 5108/72 Heading H1B In a cell having a lithium anode and a cathode comprising a compound selected from metal sulphides, metal fluorides and mixtures thereof, the metal being selected from iron, copper, nickel and mixtures thereof, the electrolyte has a conductivity of at least 1 x 10<SP>-3</SP> ohm<SP>-1</SP> cm<SP>-1</SP> and comprises a solvent consisting essentially of from 100-50% by weight of dioxolane and complementally from 0-50% by weight of an ether selected from aliphatic ethers and cycloaliphatic carbohydric ethers having a molecular weight no greater than 165 and a dissolved salt selected from salts having the formula MSCN and MCIO 4  where M is a cation of Li, Na or K. The tendency for the electrolyte to polymerize can be reduced by the addition of a small amount of a tertiary nitrogen base such as dimethylisoxazole, pyridine or triethylamine. Examples of the cycloaliphatic carbohydric ethers are: ethylene oxide, propylene oxide, butylene oxide, dioxane, tetrahydropyran, dihydrofurane and tetrahydrofurane. Examples of aliphatic ethers are diethyl ether, 1,2-dimethoxyethane, 1,2- diethoxyethane, the dimethyl ether of diethylene glycol and the diethyl ether of diethylene glycol. In one example of cell the cathode consists of CUS and the electrolyte comprises, by weight, dioxolane 85% and LiClO 4  15%. In another example of cell having a cathode of CUS, the electrolyte comprises, by weight, dioxolane 45%, 1,2-dimethoxyethane 45% and LiClO 4  10%. Other preferred cathode materials are: FeS, NiS and Ni 7 S 6 .
Patent GB-206806-A (GB)
Title: Improvements in fluid tight joints for rotary shafts
IPC: F16J15/34
Filed: 1923-02-21
Abstract: 206,806. Planche, B. R. Nov. 10, 1922, [Convention date]. Channels in stuffing- boxes.-In packing for rotary shafts of the type comprising discs 7, 8 carried by a corrugated diaphragm 1 secured to the casing and engaging one of two discs s 9, 10 mounted on the shaft, the discs 9, 10 are formed with circular troughs 12, 13 in which oil collects and passes by passages 14 to the rubbing surfaces.