baber/WOPTO huggingface dataset:
Patent GB-296069-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/42
Filed: 1928-01-12
Abstract: 296,069. Associated Telephone & Telegraph Co., (Assignees of Stehlik, R. F.). March 14, 1927, [Convention date]. Divided on 287,079. Drawings to Specification. Semi-automatic exchange systems. - The terminals of the hunting switches that associate the incoming junctions with the idle registers of a call-indicator are connected to the registers through a distributing frame so that the number of registers can be varied while all the terminals of the hunting switches are kept in use. The position is marked busy an instant after the last but one register is taken into use, and the last, which is normally marked busy, is made available for a call arriving before the busy mark is applied. Mutilated calls are displayed after an interval governed by a timing switch which is restored as each digit is received, and are extended to a special operator, the subscriber receiving a ring- back tone. If the subscriber dials into a junction that is not associated with a register, he gets a busy signal. A common key connects up busy tone to the junction over which the number displayed has come in. The usual reply signal is not sent back if the call is abandoned. The system described is identical with that described in Specification 287,079.
Patent GB-508342-A (GB)
Title: Improvements in or relating to systems for supplying liquids in a gas- or air-free condition to liquid consuming apparatus
IPC: F02M55/00
Filed: 1938-08-19
Abstract: 508,342. Supply systems to fuelinjection pumps ; centrifugal separators. L'ORANGE, P. Aug. 19, 1938, No. 24470. [Class 102 (i)] [Also in Group II] A feed pump a delivers fuel through an air separator c to a fuel-injection pump h. A pipe e is tangential to the separator c and causes the fuel to rotate and the pipe f, leading to the injection pump is also tangential. A restricted orifice l is connected to the supply tank b or the return conduit i and permits escape of air or gas bubbles in the fuel. The cross-section of the orifice is such that at normal pressures not more than 10-20 per cent of the fuel pumped can pass through.
Patent GB-828683-A (GB)
Title: Improvements in or relating to micro-porous separators for electric storage batteries or accumulators
Inventor: PARTRIDGE JOHN CHARLES
IPC: H01M50/409
Filed: 1955-08-26
Abstract: Aqueous slurries of polyvinyl compounds are sheeted out and heated to evaporate the water and sinter the polymer particles to form continuous microporous structures.  Specified polyvinyl compounds are polyvinyl chloride or copolymers of vinyl chloride with vinylidene chloride or vinyl acetate.  The slurries may also contain inert micro-porous fillers, e.g. kieselguhr, diatomite, fossil flour, Tripoli, infusorial earth, silica and powdered pumice, dispersing and stabilizing agents, e.g. casein, gelatine, alkyl sulphates and aryl sulphonates, and volatile organic solvents, e.g. acetone and methyl ethyl ketone.  The sheets may be further shaped, e.g. by rolling, while still hot and may be washed in water containing a wetting agent, e.g. sulphated oleic acid, sulphated castor oil, alkyl sulphates and aryl sulphonates, and used as battery separators.ALSO:Aqueous slurries of polyvinyl compounds are sheeted out and heated to evaporate the water and sinter the polymer particles to form continuous microporous structures.  Specified polyvinyl compounds are polyvinyl chloride or copolymers of vinyl chloride with vinylidene chloride or vinyl acetate.  The slurries may also contain inert microporous fillers, e.g. kieselguhr, diatomite, fossil flour, Tripoli, Sufusorial earth, silica and powdered pumice, dispersing and stabilising agents, e.g. casein, gelatin, alkyl sulphates and aryl sulphonates, and volatile organic solvents, e.g. acetone and methyl ethyl ketone.  The sheets may be further shaped, e.g. by rolling, while still hot, and may be washed with water containing a wetting agent, e.g. sulphated oleic acid, sulphated castor oil, alkyl sulphates and aryl sulphonates, and used as battery separators.
Patent GB-796592-A (GB)
Title: Improvements in or relating to the production of shaped stiffeners particularly for shoe caps
IPC: A43B23/08
Filed: 1954-08-24
Abstract: In making shaped shoe-cap stiffeners, a fabric is coated with a paste consisting of 60 parts of a polyester of 2.5 mol. adipic acid, 0.5 phthalic acid, and 4 mol. glycerin and 40 parts parts kaolin, covered with another fabric and the whole is stamped to the required shape and then immersed in or sprayed with a di-isocyanate solution.  An epoxy resin may be used instead of the polyester, when dicyandiamide is used instead of the diisocyanate.
Patent GB-1380338-A (GB)
Title: Lamp
IPC: F21V21/26
Filed: 1972-05-25
Abstract: 1380338 Pivots METALARTE SA 25 May 1972 [4 Jan 1972] 24616/72 Heading E2F [Also in Division F4] A lamp assembly comprises at least, two elbowed tubular sections 1 joined together by their openings in such a way as to allow relative rotation between the sections, one of the end sections containing a lamp 13 which may have an adjustable lens 14 to vary the focus of the light beam. Each join comprises a crown 3 fixed in one opening and having fingers 4 separated by spaces 6 and a ring 2 fixed in the other opening and adapted to engage resiliently in depressions 5 in the fingers. Both the crown and the ring have serrated radial fixing lugs 8, 8a which are secured to corresponding serrated portions 9 of the sections 1 by adhesive. A step-down transformer 17 is housed in the base section.
Patent GB-205295-A (GB)
Title: Improvements in or relating to escapements for clock, watch or like mechanism
IPC: G04B15/02
Filed: 1922-09-11
Abstract: 205,295. Gold, S. Sept. 11, 1922. FIG. 4. Escapements; going-trains.-The escape-wheel of a watch, clock &c. is released once only during two or more complete oscillations of the balancewheel, the release being effected by means actuated by the oscillation of the balance-wheel. The escape-wheel 1, which is geared directly with the centre wheel is normally held against rotation by a projection 6 on a pivoted detent 3 controlled by a spring 4. The detent 3 is tripped by a pin 12 on a star-wheel 11, which is turned forward tooth by tooth by means of a notch 10 in the balancespindle 9. When the escape-wheel is released, one of its teeth gives an impulse to the balancewheel by engagement with a pin 8. Correct engagement of the teeth of the star-wheel 11 with the notch in the balance-spindle is ensured by a spring-controlled finger 19 pivoted on an arm 15 which is rocked by a pin 18 on the balancespindle engaging a fork 17 in a plate 16 projecting from the arm 15.
Patent GB-1186935-A (GB)
Title: Improvements in or relating to Hinges for a Vehicle Door
IPC: E05D5/06
Filed: 1967-05-26
Abstract: 1,186,935. Vehicle door hinges. PAUMELLERIE ELECTRIQUE. 26 May, 1967 [27 July, 1966], No. 24634/67. Heading E2F. A vehicle door mounting hinge having means to hold the door open comprises a first knuckle member 1 which is secured to or integral with the door A, and a second knuckle member 2 attached to the vehicle body B by bolts 5. The first member is pivoted upon each end of a pin 3 inserted through two eyes 2a on the second member, and carries a locking pin 6, which may be fixed or rotatable or surrounded by a rotatable sleeve. A doubly curved leaf spring 4 is attached by the bolts 5 to the second knuckle member, and extends towards the locking pin in the form of a trough 4c and a crest 4b. When the door is opened from the position in Fig. 1, the locking pin first stresses the spring towards the pivot and rides over the crest 4b, and then engages in the trough 4c to retain the door in the open position shown in Fig. 3. In other embodiments, the spring action may be reinforced either by a resilient cylindrical rubber block between the face of the knuckle element 2 and the concave side of 4b, or by tabs extending from the free end of the spring to bear resiliently against the eyes 2a, Alternatively the knuckle member 2 may be mounted on the door and the member 1 mounted on the body.
Patent GB-753421-A (GB)
Title: Improvements in coffee brewing apparatus
Inventor: HISCOCK EARL FRANCIS
IPC: A47J31/20
Filed: 1954-08-25
Abstract: 753,421. Coffee pots. KIP, Inc. Aug. 25, 1954, No. 24704/54. Class 129. A coffee pot includes a holder for a coffee bag, the user being instructed to push the bag up and down during brewing. The bag D is clamped between the perforated base 40 of the holder and a perforated disc 55 which is loaded by a tension spring 50 drawing the crossbar 45 (and hence rod 30) downwards towards the lid 22. The cross bar 45 is lifted to release a used coffee bag. Specification 733,386 is referred to.
Patent GB-974313-A (GB)
Title: Pocket protectors
IPC: A45C13/10
Filed: 1961-07-28
Abstract: A pocket closure comprises metal bands which may be crimped corrugated or recessed, secured on either side of the pocket lining at the entrance to the pocket, the bands being urged together by magnetic attractions.  The bands may be severed at intervals to form buttons, bars or studs.
Patent GB-492956-A (GB)
Title: Improvements relating to filters
IPC: B01D39/14
Filed: 1937-02-26
Abstract: Liquids are filtered through a fabric fleece, sheet or other permeable layer of fibres made from chlorinated rubber. Specification 491,218 is referred to.ALSO:Liquids are filtered through a fabric, fleece, sheet or other permeable layer of fibres made from chlorinated rubber. Specification 491,218 is referred to.
Patent GB-617223-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/333
Filed: 1946-08-21
Abstract: 617,223. Coloured photographic images. GEVAERT PHOTO-PRODUCTEN N. V., and BEERSMANS, J. Aug. 21, 1946, No. 24887. [Class 98 (ii)] A reducible silver salt image is developed by an aromatic developing agent in presence of a coupler containing a reactive methylene group immediately linked to an azo group and either to a group known to be capable of activating the methylene group optionally in co-operation with another such activating group or to a -CH-OH group, the reactive methylene group being optionally substituted by a group split off before or during development, the coupler coupling with the oxidation product of the developing agent to form a dye containing the azo group. The coupling may also be present in its tautomeric hythrazone form. Material containing the coupler may also be processed by methods involving the step of forming a dye by coupling the coupler with a nitroso-aniline or a diazo compound. Couplers specified containing an azo group are benzeneazoacetone, alpha - benzeneazoacetoacetic acid, . benzeneazocyanacetic acid, benzeneazoacetonitrile, p - nitrobenzeneazocyanacetic acid, benzeneazonitromethane, x - naphthaleneazo - cyanacetic acid, p-benzeneazobenzeneazoacetonitrile, diphenylene-p:p<1>-bis-(azoacetonitrile), and bis-(benzeneazo)-acetonitrile. Couplers specified containing a hydrazone group are lactose-, maltose- and l-arabinose-phenylhydrazone, d-glucose-p-tolylhydrazone, d-glucose-, 2 : 5 - dichlorophenylhydrazone, d - glucose - o - methoxyphenylhydrazone, and l-arabinose-pbromophenylhydrazone. The couplers may be incorporated in the developing solution, in a silver halide emulsion, or in a layer coated next thereto or separated therefrom only by a thin water-permeable layer. The couplers may be tendered fast-to-diffusion by the incorporation of chains of more than 5 carbon atoms or by diphenyl groups. Formulµ are given for, developing solutions containing the couplers one such solution containing hydroquinone as developing agent.
Patent GB-1121402-A (GB)
Title: Improvements relating to logic circuit arrangements
Inventor: SMYTHE GEORGE EDWARD
IPC: H03K19/082
Filed: 1966-06-06
Abstract: 1,121,402. Transistor gating circuits. M.E.L. EQUIPMENT CO. Ltd. 6 June, 1966, No. 25017/66. Heading H3T. In a circuit for performing a logical AND function, two transistors 1 and 2 and a diode 3 are connected in series across a supply and a low impedance shunt 15 is connected across the diode 3 and the transistor 1, the arrangement being such that during the period when an input pulse is applied to the base of transistor 2, a first input pulse applied to the base of transistor 1 which coincides with part of this period causes a capacitor 7, connected in a charging circuit 7, 8, to discharge through the transistors, but any subsequent input pulse occurring in the same period on transistor 1 has no effect on the capacitor, the capacitor being only recharged through the diode 3 in the absence of any input pulse to transistor 2. The value of capacitor 7 is chosen so that at the end of the input pulse (b at t 1 . 5 ) (Fig. 2, not shown), it is discharged so ending the output pulse (c) from 9. Capacitor 7 cannot recharge, because of the low impedance path provided by resistor 4, link 15 and the conducting transistor 2 so that the diode 3 is reverse biased until the inputs 11 and 13 are removed.
Patent GB-849706-A (GB)
Title: Improvements in rail clamps for traveling bridges, overhead cranes, towers and the like
Inventor: SNOW FREDERICK ORREN
IPC: B66C9/18
Filed: 1958-08-05
Abstract: 849,706. Derailing, preventing. McKIERNANTERRY CORPORATION. Aug. 5, 1958, No. 25087/58. Class 103(6). [Also in Group XXV] A rail clamp comprises clamp levers 15, 16 fulcrumed together intermediate their ends and having companion rail head clamping jaws 18 at their lower ends, a helical power spring 21 interposed between the upper ends of the levers to separate the upper ends and force the jaws closed on the rail head, and a cylinder and piston 32, 33 within the helical spring connected to force the upper ends of the clamp levers towards each other, thereby effecting compression of the spring and release of the clamping jaws from the rail head. As shown, the levers 15, 16 are pivoted on a pin 17 carried by the lever 15, and at their upper ends are forked to carry pins or journals 22, 23 on abutments 19, 20 for the ends of the springs 21. The piston and cylinder are actuated by admission and release of hydraulic or other fluid through a bore 42 in the head of the piston. The lever 16 carries at opposite sides thereof, journal boxes 45, 46 for rollers 47, 48 which centre the clamp on the rail. In another arrangement, Figs. 6-9 not shown, a double rail form of clamp is provided, the two clamp levers above being duplicated and operated by a single spring, and piston and cylinder.
Patent GB-1419415-A (GB)
IPC: H04Q11/06
Filed: 1973-05-25
Abstract: 1419415 Automatic exchange systems SIEMENS AG 25 May 1973 [26 May 1972] 25098/73 Heading H4K In a PCM, TDM network comprising a time stage followed by two space stages, the time slot used on the intermediate highway between the two space stages is either the same as or is the closest free time slot preceding, the time slot in use on the outgoing highway. The latter includes a delay buffer for matching the different time slots where necessary. Each time stage operates in known manner to interconnect the 32 channels of each of 16 incoming highways in a non-blocking manner to the 32 time slots of each of 16 intermediate highways i.e. by using 512 speech stores and by reading out 16 stores during each time slot. Four wire connections are used such that once a connection is established in one direction, the same time slots are allocated for the opposite direction.
Patent GB-642397-A (GB)
Title: A screw-driving device for an operating screw of a hose or like clip
Inventor: CHAINEY ROBERT GEORGE
IPC: B25B25/00
Filed: 1948-09-27
Abstract: 642,397. Screwdrivers. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G. Sept. 27, 1948, Nos. 25113/48 and 19491/49. [Class 61(iii)] A screwdriver device for actuating the operating screws 12 of a hose or like clip 11 comprises a hollow body 15 having a lateral opening to receive the screw and screw-supporting part 13 of the clip, the body having a portion 16 provided with teeth for engaging the part 13 and being provided with a driver 22 connected through a universal joint to an actuating handle 28, the driver being rotatably supported in an axially-adjustable bush 20. In a modification, Fig. 5, the body 15 is formed as a tube having a lateral opening 34 through which the screw and screwsupporting part 13 are inserted, the part 13 being engaged by a spring-pressed plunger 39 and the driver 22 being located axially by means of a collar 43 and a fork 26. In a further modification, the body comprises two relatively-slidable L-shaped members 15a, 15b, Fig. 6, the relative movement for locating the device being produced by operating a pinion which is mounted on the part 15a and engages rack teeth on the upper face of the other part.
Patent GB-913942-A (GB)
Title: Steroid compounds
IPC: C07J5/00
Filed: 1959-07-22
Abstract: The invention comprises 21-fluoro substituted steroids of the general formula <FORM:0913942/IV (b)/1> wherein Z represents an a  or b -alkyl group, W represents a keto or hydroxy group, and X represents a hydrogen or halogen atom, and the preparation thereof by reacting the corresponding 21-methane sulphonates with an alkali metal fluoride in the presence of dimethylformamide.  The 9a -halogen atom may be a fluorine or chlorine atom, and the alkyl group may be a methyl, ethyl, propyl or butyl group.  The above process may be modified in that the 21-methane sulphonate reactants are prepared by a process described and claimed in Specification 913,943.  A large number of detailed examples are given describing the preparation of the above steroids by the method referred to above which also gives rise to the formation of a by-product having a 17a ,21-oxido-20-keto grouping in place of the 17a -hydroxy-20-keto-21-fluoro grouping. Therapeutic compositions useful for the allevation of arthritis contain as the active ingredient a 21-fluoro-steroid of the above general formula.  Specifications 877,085, 877,086 and 906,443 also are referred to.
Patent GB-1119549-A (GB)
Title: Improvements in the preparation of 1-alkyl-2-pyridinium-aldoxime-salts
IPC: C07D213/53
Filed: 1966-06-07
Abstract: 1 - C1- 7 alkyl - 2 - pyridinium - aldoxime salts are prepared by reacting a 1 - C1- 7 alkyl - picolinium salt with C1- 7 alkyl nitrite, subsequently adding a base to the reaction mixture and finally neutralizing the reaction mixture with an acid.  The preferred starting materials are 2-picolinium methohalides. Specified nitriles are isopropyl, n-butyl, isopentyl and ethyl nitrites.  It is preferred to use a stoichiometric amount of the base, which may be, e.g., sodium or potassium hydroxide, and to effect addition to the nitrosation reaction mixture at temperatures not exceeding room temperatures.  Suitable acids for neutralization, are mineral acids and strong organic acids. Example related to the preparation of 2-pyridine aldoxime methobromide and methochloride. The 1-C1- 7-alkyl-picolinium salts may be prepared by treating 2-picoline with the appropriate alkyl halides.  The C1- 7 alkyl nitriles may be prepared by treating the corresponding alkanols with sodium nitrite in acid solution.
Patent GB-1381688-A (GB)
Title: Low pour point fuel oil compositions
IPC: C10L1/16
Filed: 1973-05-25
Abstract: 1381688 Fuel oil composition TEXACO DEVELOPMENT CORP 25 May 1973 [21 June 1972] 25275/73 Heading C5G A low pour point fuel composition comprises a major amount of a gas oil or gas oils (b.p. 450- 1050‹ F.), up to 20 wt. per cent of a residuum having an asphaltene content of 4 to 17 weight per cent, and an effective pour point depressant amount of an oil-soluble ester of a straight chain. C 18 -C 30  saturated aliphatic monohydric alcohol with an ethylene-maleic anhydride copolymer. The ester additives may be added to the oil directly as granules, in a water-glycol emulsion, in a hydrocarbon or in a gasoline fraction. The residuum may be mixed with a high-wax, low sulphur residual fuel oil having a wax content of 12-20 wt. per cent and S content of below 1 wt. per cent. In examples compositions are illustrated containing desulphurized vacuum gas oil, residuum and various esters (residual fuel oil also in Example 2).
Patent GB-1455575-A (GB)
Title: Cavity fixing oil-contain
IPC: F16B13/06
Filed: 1973-05-29
Abstract: 1455575 Cavity fixing B N SHEADER 26 Feb 1974 [29 May 1973] 25459/73 Heading F2H  A cavity fixing for use with a screw-threaded member comprises a deformable tubular body portion provided with helical slots 9 and an internally-threaded nut portion 2, the arrangement being such that the slots extend in a direction opposite to the thread of the nut portion. The invention also comprises a combination of a cavity fixing and a screw-threaded member for use therewith, the cavity fixing comprising a deformable tubular body portion provided with helical slots and a nut portion adapted to threadedly receive the screw-threaded member, the slots extending in a direction opposite to the thread of the screw-threaded member. The nut portion may be internally screw-threaded or may be provided with a screw-receiving aperture, the peripheral wall of which is smooth or is provided with axially-extending ribs. A flange 4 and fillets 10 may be provided at the end of the tubular portion opposite the nut portion. The tubular portion and flange are preferably formed of plastics material, although they may be formed from elastomeric or metal material. The nut portion may be formed integrally with the tubular portion or may be formed separately and assembled therewith. Thus, the nut portion may be moulded integrally with the tubular body portion or may be a separate nut, e.g. of brass which is moulded into the tubular body portion or is assembled therewith. The nut portion may be adapted to fit tightly into an end of the tubular portion (as shown), or over the end of the tubular portion. Alternatively, or in addition, the nut portion may be secured to the tubular body portion by means of an adhesive or by swaging. The slots may be parallel with each other. The side walls of each slot may be parallel or may converge or diverge over at least part of their length. The tubular body portion may be of the same wall thickness over at least the greater part of its length or may be of different wall thicknesses over different parts of its length.
Patent GB-156916-A (GB)
Title: Improvements in or relating to the manufacture of acetic acid
IPC: C07C51/235
Filed: 1919-10-17
Abstract: The ferric oxide employed as a catalyst in the manufacture of acetic acid by the oxidation of liquid acetaldehyde is prepared by precipitation from a ferric salt solution, followed by heating to a temperature between 310 DEG  and 500 DEG  C.  Its catalytic activity is stated to be enhanced thereby.  Sodium acetate may be associated with the ferric oxide, but only in quantity not exceeding about double the amount of ferric oxide present.ALSO:The ferric oxide employed as a catalyst in the manufacture of acetic acid by the oxidation of liquid acetaldehyde is prepared by precipitation from a ferric salt solution, followed by heating to a temperature between 310 DEG  and 500 DEG  C.  Its catalytic activity is stated to be enhanced thereby.  Sodium acetate may be associated with the ferric oxide, but only in a quantity not exceeding about double the amount of ferric oxide present.