baber/WOPTO huggingface dataset:
Patent GB-513449-A (GB)
Title: Improvements in or relating to frequency control systems in high frequency electric circuits
IPC: H03J7/04
Filed: 1938-04-11
Abstract: 513,449. Automatic frequency control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 11, 1938, No. 11028. Convention date, April 10, 1937. [Class 38 (iv)] [Also in Group XL] In order that the control action of a frequency control valve of the thermionic reactance type shall be substantially constant over the tuning range, the valve is connected across the controlled circuit through a series reactance of opposite sign to that simulated by the valve. The control valve 13 the gain of which is varied in dependence on departure of the I.F. impressed on amplifier 5 from its correct value simulates an inductive reactance across the tank circuit 4, 6 of the local oscillator 4. In series with this simulated inductance a condenser C3 is provided of such value that the series circuit is resonant at a frequency below the frequency range of the oscillator circuit 4, 6. The variation in effectiveness of control over the entire range is thus considerably reduced. Specifications 471,738, [Group XL], and 489.094 are referred to.
Patent GB-270292-A (GB)
Title: Automatic slack adjusters for railway brakes
IPC: B61H15/00
Filed: 1927-04-25
Abstract: 270,292. Svenska Aktiebolaget Bromsregulator. May 3, 1926, [Convention date]. Compensating for wear.-In a brake gear comprising a brake cylinder 2 having a piston rod 4 connected to a brake lever 3 which is connected by a rod 5 to a similar brake lever 1 the free ends of the brake levers 3, 1 being connected to brake rods 8, 7 respectively, the free ends of the levers are connected by a coupling rod 14 and a slotted link 13, which upon application of the brakes, swings in a lateral direction to operate the slack adjuster 9. The slotted link has an inclined part 12, and a pin 15 on the brake lever 1 and a lever 11 mounted on the pin 15 are each provided with a roller 16, 17 respectively which works in the slotted link. When the relative movement of the free ends of the links 1, 3, upon the application of the brakes, is such as to permit the roller 16 to enter the inclined part 12 of the slot, the roller 17 moves laterally and rotates the slack adjuster 9 by means of the pin 10.
Patent GB-225124-A (GB)
Title: Improvements in typewriting and calculating machines
IPC: B41J3/42
Filed: 1924-05-05
Abstract: 225,124. Puttemans, H. A. May 5, 1924. Keyboard operators.-In typewriting and calculating machines of the kind comprising separate machines placed side bv side and having interconnected keys, the keys of the typewriting machine operate those of the calculating machine. and the machines can be disconnected by moving one of them laterally; further, certain members of the calculating machine, for instance the totalizing-key, may be operated periodically by the platen-carriage or other member of the typewriting machine. The typewriting machine 1, Fig. 1, and calculating machine 2 are placed on a base 13, the numeral key levers 7 of the typewriting machine resting in the U-shaped ends 15 of arms 4 formed on rock-shafts 5 which are mounted on the base and have arms 6 engaging the numeral keys 8 of the calculating machine. Either machine can be moved laterally to separate the arms 6 and keys 8, and render the machines independent. For operating the totalizing-slide or key 19, Fig. 2, the platen-carriage is arranged, on being returned, to rock a lever 14 geared to a rack 17 having a finger 18 for engaging the slide. In a modification, the platen-carriage engages an arm on a rock-shaft connected to a lever for operating the slide 19.
Patent GB-650670-A (GB)
Title: Improvements in the construction of walls
IPC: E04B1/24
Filed: 1946-04-10
Abstract: 650,670. Walls. DOTREMONT, P. April 10, 1946, Nos. 11086, 11087, 11088 and 11089. Convention dates, July 4, 1945, Sept. 21, 1945, Dec. 11, 1945 and Sept. 25, 1945. [Classes 20(iv) and 87(i)] A wall comprises a rigid frame of uprights connected by horizontal round bars or tubes from which vertical flush rectangular cover plates hang by means of hooks at the upper part of their rear face; each plate has a rabbet along at least one side edge to accommodate either the edge of an adjacent plate or intermediate sealing means, and a rabbet along at least part of a horizontal edge to accommodate the horizontal edge of an adjacent plate or a lug projecting therefrom. The slabs 1, of concrete (e.g. reinforced or vibrated), terra-cotta, ceramic, glass, metal, artificial or natural stone, plaster and wood wool (for internal surfacing) &c. may be secured to separately formed hooks, or, as shown, may be moulded with two or more integral bosses 3, 4 having undersides grooved to hook on to tubes 8 anchored, or resting freely, in notches or holes in the uprights; the vertical joints may be continuous or not; if the edges overlap one another (Fig. 10), the joints, with or without a filler, may alternate in aspect to facilitate replacement, or may be all identically arranged, e.g. the tops and left-hand edges being convex and overlapped by strips extending from the bottoms and right-hand edges of adjacent slabs whereby any water on the inner faces may flow outwards through the horizontal joints; the latter may be stabilized by lugs projecting from upper slabs against the edges of, or into recesses in, lower slabs or by wood, concrete &c. pegs 11 driven through tapered holes defined by straps 9. The framework uprights may be of ferro-concrete or wood, or each may comprise two T-irons arranged back to back with their webs longitudinally of the wall, or a single member of channel form 20 (Fig. 15) or of double channel Z-form. Intermediate overlapping elements engaging rabbets 2 in adjacent slabs, or 22 in a corner member 21, may comprise laths 16 supported on the webs of the channels 20 and each having a concave, grooved &c. face 19 covered with a deformable or plastic layer 18. Slabs may be mounted on both sides of the uprights for cavity walls, or two or more sets of uprights may be provided, linked or not by cross-ties. The Specification as open to inspection under Sect. 91 comprises also the use of dowels to interlock the horizontal slab joints, without rabbets; perforated slabs are also referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-855922-A (GB)
Title: Improvements in drives for devices for feeding or distributing the material introduced into the refuse container of a refuse truck
IPC: B65F3/22
Filed: 1958-04-08
Abstract: 855,922. Changing refuse vehicles. FAHRZEUGBAU HALLER G.m.b.H. April 8, 1958 [April 12, 1957], No. 11105/58. Class 78 (4). [Also in Group XXIV] The drive for a distributing worm 13 and a conveying wheel 13a in the container 11 of a refuse vehicle is taken from a driven shaft 14, through a worm gear 15, an overload coupling 17 (see Group XXIV), a dog clutch 18, a shaft 19 mounted in bearings 21 on the container 11, and a worm gear 24. When the container is tipped about a shaft 12, the drive uncouples at the dog coupling 18. The half 18a of the dog coupling is combined with the coupling 17 to form a single unit, the half 18b being displaceably mounted on the shaft 19 and being urged into engagement with the half 18a by a spring 20. The wheel 13a is supported on rollers 13b and is provided with a toothed rim 13f which engages a pinion 13e driven by a pinion 13d on the shaft of the distributing worm. Reference has been directed by the Comptroller to Specification 780,057.
Patent GB-1197451-A (GB)
Title: Improvements in or relating to teleprinters
Inventor: REED JOHN
IPC: B41J7/92
Filed: 1967-03-09
Abstract: 1,197,451. Selective printers. MARCONI CO. Ltd. 28 Nov., 1967 [9 March, 1967], No. 11107/67. Heading B6F. A teleprinter having a continuously rotating type wheel 3 is provided with a hammer mechanism having a hammer head carrier 1 which supports two or more hammers 5, 6 joined by a carrier bar 7, for interchangeable mounting of the hammers 5, 6 at a predetermined position which is coincident with the disposition of the hammer 5 in Fig. 1. Hammer 6 which is heavier and longer (dimension taken in the direction of travel for impression) is selected for printing of a larger number of carbon paper interleaved recording media 10 by sliding the hammers 5, 6 off their guide 8 in the direction of arrow 9, inverting the hammers 5, 6 and replacing the hammers 5, 6 on the hammer head carrier; so that the hammer 6 now occupies that position which was previously occupied by the hammer 5.
Patent GB-743499-A (GB)
Title: Improvements relating to electrical control systems suitable for use in hospital wards
IPC: H04H20/63
Filed: 1953-04-22
Abstract: 743,499. Control systems for consumption apparatus. MURLAND, J. R. W., and BARCLAYS BANK, Ltd. April 22,1954 [April 22, 1953], No. 11108/53. Class 38 (4). [Also in Group XXXIX] A control unit for several services, such as radio, nurse's buzzer, and bedside light, intended to be placed inside a hospital bed, is provided with low-tension supply only. When switch 24 is closed a low-tension current from transformer 22 energizes relay 14 to supply mains current to a table lamp 13. Alternatively (Fig. 3, not shown) the switch 24 may be biased to off-position, successive operations of the switch turning the lamp on and off. A push-button 25 takes current from the transformer 22 to summon the nurse. A switch 29 controls music supplied to headphones 31 and may choose either of two programmes at high or low volume or may be turned to off.
Patent GB-1011843-A (GB)
Title: D-(-)-ª‡-aminobenzylpenicillin trihydrate
IPC: C07D211/18
Filed: 1964-03-17
Abstract: The invention relates to D-(-)a -aminobenzylpenicillin trihydrate. This compound is prepared by contacting an acid addition salt of D-(-)-a -aminopenicillin with an amine of general formula <FORM:1011843/C2/1> wherein R is an aliphatic group having 10 to 15 carbon atoms, R1 is hydrogen or C1-C6 alkyl and R2, R3 and R4 are each alkyl and wherein R2, R3 and R4 contain in aggregate from 11 to 14 carbon atoms, in a water-immiscible organic solvent containing at least 3 moles of water per mole of D-(-)-a  aminobenzylpenicillin at a temperature below 60 DEG  C. and recovering the precipitate of D-(-)-a -aminopenicillin trihydrate. The acid addition salt may be with inorganic or organic acids especially aryl sulphonic acids of formula R5SO3H wherein R5 is <FORM:1011843/C2/2> or <FORM:1011843/C2/3> in which R6, R7, R8 and R9 are hydrogen, C1-C12 alkyl, C1-C6 alkoxy, C1-C6 alkylthio, nitro, C1-C6 alkanoylamino, C1-C6 alkanoyloxy, sulphanyl, chloro, iodo, bromo, fluoro, trifluoromethyl, C1-C6 alkylsulphonyl, benzyl, carbo C1-C6 alkoxy, phenethyl, cycloheptyl, cyclohexyl, and cyclopentyl, especially the p-nonylbenzene sulphonate and p-toluene sulphonate or the p-cymene sulphonate.  The preferred water-immiscible solvent is methylisobutylketone.  The penicillin is insoluble in water, stable on storage, resistant to destruction by acids and is a potent antibacterial agent for pharmaceutical and veterinary use, e.g. treating mastitis in cattle.  It may be incorporated into animal feeds or formulated into pharmaceutical compositions.  Specification 873,049 is referred to.
Patent GB-196805-A (GB)
Title: Improvements in automatic couplings for railway vehicles
IPC: B61G3/06
Filed: 1922-04-20
Abstract: 196,805. Marks, E. C. R., (American Steel Foundries). April 20, 1922. Couplings, automatic.-In a Janney type of coupling in which the knuckle has a tail on which the lock is supported when the knuckle is moving from open to closed position and upon which the lock is free to move to its lock-set position, the lock is adapted to co-operate with means whereby upward movement of the lock is limited and a backward tilting action avoided in order to prevent the lock from moving accidentally to its lock set or inoperative position during the closing movement of the coupler knuckle. The knuckle lock 12 has a bail 25 engaged by the hook 20 of the lifter 19 when raising the tail of the lock 14 on to its lock-set seat 13. The lock 12 is prevented from jumping accidentally on to its lock-set seat 13 during the closing movement of the knuckle 11 in three ways, each of which may be used independently, viz :-The cam 22 on the heel of the lifter 19 engaging the radius 23 of the coupler head 15 : the toe 29 on the bottom of the lifter 19 engaging the protuberance in the recess of the knuckle lock : and a projection 17 on the lock entering a recess 16 in the rear wall of the coupler head. In raising the lifter 19 the heel 22 tilts the lock forwardly until the projection 17 on the lock clears the recess 16 in the coupler head, and at the same time the toe 29 is raised clear of the protuberance in the knuckle lock recess, the lock is then free to be raised to the position in Fig. 2. In the modification the lifter is inserted through the bottom of the coupler head.
Patent GB-115751-A (GB)
Title: Improvements in Devices for Preventing Nuts from Turning on Screw-bolts and the like.
Inventor: HEDDERWICK HAROLD JAMES
IPC: F16B39/08
Filed: 1917-08-02
Abstract: 115,751. Hedderwick, H. J. Aug. 2, 1917. Looking nuts.-Relates to devices of the type comprising a cap having lugs to fit the nut and a collar surrounding the upper part of the bolt and prevented from turning by a tapered pin passed through the bolt and slots in the collar, and consists in inclining the sides of the slots in the collar so that the pin presses the cap down on to the face of the nut. Fig. 4 shows one construction in which the sides of the slots in the collar C diverge towards the top. Fig. 6 shows a modification in which the collar C is conical, in which case the sides of the slots may be parallel, as shown, or divergent. In a further modification, the collar has straight portions tangential to the bolt, and in another the edges of the slots are bent outwards. Two or more pairs of slots may be provided, one pair being at right-angles to the lugs fitting the nut.
Patent GB-1224371-A (GB)
Title: Method of spreading liquids
IPC: G03C8/42
Filed: 1968-03-07
Abstract: 1,224,371. Processing photographic film units containing a rupturable pod. INTERNATIONAL POLAROID CORP. March 7, 1968 [March 10, 1967], No.11194/68. Addition to 1, 224, 372. Heading G2A. A viscous processing liquid contained in a rupturable pod is spread between the sheets of an integral film unit of which the pod forms a part by passing the film unit through two pairs of rolls in sequence, Fig.3, the first pair of rolls 50 preventing any air that is between the sheets 12 and 14 from being entrained with the processing liquid 18 and limiting the advance of the liquid, and the second pair of rolls 46 moving the processing liquid between the sheets. The film unit has binder strips sealing the sides and the end of the unit which may have traps for excess liquid. In a preferred embodiment, sheet 12 is photosensitive and contains a dye-developer, sheet 14 is transparent and is an image-receiving sheet and the processing liquid is white and opaque so that on exposure and processing a colour image is formed which is viewable through sheet 12 against the white processing liquid.
Patent GB-1172216-A (GB)
Title: Improved Frequency Discriminator
IPC: H03D3/06
Filed: 1968-03-08
Abstract: 1,172,216. Frequency discriminators. COMPAGNIE GENERALE D'ELECTRICITE. 8 March, 1968 [10 March, 1967], No. 11383/68. Heading H3A. The selective network of a frequency discriminator comprises an output tuned circuit L 3 , C 6 and an input circuit consisting of a capacitor C 5 , connected between a tapping on the inductor L 3  and earth, and a further inductor L 4  connected between one side of the inductor L 3  and earth. The output is connected to a differential diode detector circuit D of conventional form, Fig. 1 (not shown). The inductor L 3  may be inductively coupled to the inductor L 4 , Fig. 2b (not shown), to form a single inductor (L 5 ).
Patent GB-114892-A (GB)
IPC: G10K13/00
Abstract: 114,892. Thomas, R. April 19, 1917. Sound magnifying and directing appliances.- The sound conduit of a phonograph or like instrument comprises two or more tubes arranged one within another, these tubes communicating with each other through a series of radial openings 40, Fig. 3, and, at their ends remote from the soundbox opening into a chamber having one wall formed as a concave reflector 44, and having a ring of openings 39b through which some of the reflected waves are emitted. The tubes are held in relative position by a screw 41.
Patent GB-312764-A (GB)
Title: Improved manufacture of cellular building materials
IPC: C04B38/02
Filed: 1928-04-18
Abstract: 312,764. Desmarquest, L. April 18, 1928. Porous compositions.-A mixture of clay, Portland or like cement, and a gas-generating metallic powder is hydrated and moulded. The mass is allowed to set and contract sufficiently for removal from the mould after which it is further dried and finally baked at a temperature sufficient to de-hydrate the cement and wholly or partly vitrify the ingredients. Chamotte, sand, sandstone, or silica may be used instead of, or in addition to, the clay. The clay may be preliminarily heated to a temperature of 200‹ C. to 1100‹ C. less than the final baking temperature, and sieved, a certain proportion of unbaked clay being added to the mixture. The relative proportions of Portland cement and clay are varied according to the desired mechanical resistance, refractoriness and specific gravity of the finished product. The mixture may comprise 40 parts of cement, 50 parts of fire clay baked at 400‹ C., 10 parts of unbaked clay, and 0.12 parts of powdered aluminium. The generation of gas is facilitated by use of ordinary or saponified water at a temperature of 40‹C. The moulds are greased and only partially filled with the mixture to allow for effervescence.
Patent GB-117953-A (GB)
Title: Improvements in and relating to Electrical Induction Apparatus.
IPC: H01F27/245
Filed: 1917-08-10
Abstract: 117,953. British Thomson - Houston Co., (General Electric Co.). Aug. 10, 1917. Transformers.-A transformer or other stationary induction apparatus has a core partly enclosed by the winding, and the part at the centre of the winding works at a higher flux density than the parts near the ends. The core shown consists of three units 8, 9, 10 fitted together to form a centre leg as described in Specification 117,685. The laminations of each unit comprise the centre leg parts 18 with the leg 20 gradually increasing in width towards the yoke 21, and the outer parts 25 with yoke 26 having a triangular projection 27. The laminations break joint when assembled, and the space left is occupied by the winding 7, Fig. 3, so that the part 33 of the winding is nearer the axis than the end portions. The outer legs and the yokes are so proportioned that thev work at a lower flux density than the middle part of the centre leg. Specification 13739/07, [Class 37, Electricity. Measuring &c.], also is referred to.
Patent GB-1213712-A (GB)
Title: Improvements in and relating to surface-effect machines
Inventor: DELAMARE GUY ROBERT
IPC: B60V1/00
Filed: 1968-03-08
Abstract: 1,213,712. Air cushion vehicles. SOC. D'ETUDES ET DE DEVELOPPEMENT DES AEROGLISSEURS MARINS. 8 March, 1968 [10 March, 1967], No. 11518/68. Heading B7K. An air cushion vehicle 1 is supported on a plenum chamber air cushion enclosed by an outer convoluted single wall skirt 10, the cushion space being subdivided into two or more inner cushions 2, 3 enclosed by inner fruato-conical single wall skirts 4, 5. Air is supplied by a ducted fan 13 which discharges through openings 25, 26, 27 in the upper wall of the cushion spaces directly into the inner cushion spaces 2, 3 and the outer cushion space respectively. A further embodiment is described in which two pairs of inner cushions, each pair associated with a fan, are positioned on opposite sides of the central median plane of a vehicle.
Patent GB-115227-A (GB)
IPC: E04B5/06
Abstract: 115,227. Bessonneau, J. P. B., and Besnard, C. H. April 25, 1917, [Convention date]. Chimney flues are formed of grooved blocks similar to those shown in Fig. 5 and lined with slag concrete.
Patent GB-835253-A (GB)
Title: Improvements relating to vacuum electric switches
Inventor: REECE MICHAEL PETER
IPC: H01H1/02
Filed: 1956-04-17
Abstract: 835,253. Vacuum switches; contact members for switches. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. April 3, 1957 [April 17, 1956], No. 11677/56. Class 38 (5). In a vacuum switch for A.C. operation each contact comprises a mechanically strong conducting body 26 having in its operating face 28 one or more recesses 29 containing a non-fluid material 30 which has a lower arcing voltage than that of the body and which is capable of constituting an adherent conducting film on the operating faces during operations of the switch. To interrupt voltages of the order of 400 volts the material in the recesses may be arsenic, bismuth or an amalgam of mercury, the bodies of the contacts being of copper steel, molybdenum, tungsten or a sintered mixture of copper and tungsten; to interrupt voltages of the order of 3300 volts, the material may be lead, cadmium, sodium or zinc and the bodies of copper, steel molybdenum, tungsten, aluminium or a sintered mixture of copper and tungsten; for voltages of the order of 6600 volts, the material may be magnesium or tin and the bodies of copper, steel, molybdenum, tungsten or a sintered mixture of copper and tungsten; for voltages of the order of 11,000 volts the material may be aluminium or silver and the bodies of steel molybdenum or tungsten; and for voltages of the order of 22,000 volts the material may be copper and the bodies of steel, molybdenum or tungsten.
Patent GB-117718-A (GB)
IPC: E05D7/08
Abstract: 117,718. Hope, H. D., and Hope & Sons, H. Sept. 7, 1917. Pivots. - The pivot comprises a pair of flat bottomed cups f, c fastened to the fixed member F and the swinging member C respectively, the rim of one cup being housed an easy fit inside the rim of the other cup. The cups can be pressed from thin sheet-metal blanks. When the frames are of rolled-steel bars of standard sections shown in Fig. 7, the diameter of the larger cup f is preferably made greater than the depth of the section used. At the places where the joint is to be made, the flanges of the frame bars are cut away to receive the cups as shown in Figs. 5 and 6, in which figures the lines W, W show the lines of welding two lengths of bar together.
Patent GB-255970-A (GB)
Title: Improvements in and relating to water piping
IPC: F16L25/02
Filed: 1925-05-06
Abstract: 255,970. Perman, P. E. May 6, 1925. Corrosion, preventing.-In a water-pipe joint comprised of pipe &c. elements 2, 3, Fig. 1, of different metals, corrosion due to galvanic action, is eliminated by interposing nipples 1 of electrically non-conducting material, such as fibre, between the parts to be connected, said nipples simultaneously acting as insulators and connecting members. In the modification shown in Fig. 4, bottom washers are used for insulating the ends of the pipes, while the nipples 1 may be provided with threaded sleeves of the same metal with which it is to be connected.
Patent GB-979687-A (GB)
Title: Electron multiplier
IPC: H01J43/24
Filed: 1963-03-26
Abstract: 979,687. Electron multipliers. BENDIX CORPORATION. March 26, 1963 [April 13, 1962], No. 11815/63. Drawings to Specification. Heading H1D. An electron multiplier comprises a tube with a secondary emissive, resistive, coating along which a P.D. is applied to produce a transverse electric field inclined to the axis, so that the electrons " hop " along the secondary emitter. The inclined field may be produced by inclining the ends of the tube, Fig. 1 (not shown), or forming an inclined conductive end coating inside the tube, Fig, 5 (not shown). The ends of the tube may not be parallel to produce a varying inclination along the tube and thereby reduce " noise," Fig. 4 (not shown). Alternatively a pair of parallel plates may be used coated with a resistive emitter, Fig. 6 (not shown); or a series of parallel multiplier tubes may be used with a photo-cathode and screen to form an image converter, Fig. 3 (not shown). Specifications 954,248, 965,044 and 971,773 are referred to.