baber/WOPTO huggingface dataset:
Patent GB-1061764-A (GB)
Title: Fuel pump
IPC: F02M41/14
Filed: 1963-09-03
Abstract: 1,061,764. Fuel injection pumps; rotary pumps. V.D. ROOSA. Sept. 3, 1963 [Sept. 10, 1962], No. 34723/63. Headings F1A and F1F. A fuel-injection pump comprises a rotary distributor 40 with a fuel-injection pump cylinder block 82 at one end and a vane-type feed pump 42 at the other end, the injection pump timing being controlled in relation to engine speed by the feed pump output pressure acting on a spring- loaded piston (156) Fig. 4 (not shown) which acts to angularly adjust a cam track 96 actuating the injection pump pistons 94. To prevent variation in the feed pump output pressure due to wear of the pump components, the feed pump vanes 134 are divided into two segments biased apart by springs (144), Fig. 3 (not shown), and by applying the output pressure between the segments, so that the ends of the vanes are biased against the eccentric surface 136 to compensate for wear. A valve 68 controls the output pressure/speed characteristic of the feed pump. The quantity of fuel injected is controlled in relation to engine speed and manual setting by a metering valve 76 controlling flow between the feed pump and the injection pump, and subjected to the feed pump output pressure and spring biasing to maintain a particular engine speed according to the setting of manual control rod 194, which adjusts the load of a spring (190), Fig. 6 (not shown), opposing the spring (168) biasing the valve 76 to its open position. Collars on rod 194 determine its maximum flow and idling settings. Cut-off of the fuel supply is controlled by a slide valve (206), Fig. (not shown), in bore 204. In another embodiment, Fig. 8 (not shown), a spring-loaded check valve (208) is provided in passage 182 to control the pressure of leakage fuel in chamber (165) around valve 76 to modify the biasing of the valve 76. In another embodiment, Fig. 9 (not shown), remote manual control of valve 76 is effected hydraulically by controlling the spring- loading on a check valve (216) controlling a connection between chamber (165) around valve 76 and feed pump inlet 60. A throttle (167) is provided in passage (166) in valve 76 to prevent 'hunting' due to pressure surges. A ball valve (162), Fig. 5 (not shown), is provided in the connection between the feed pump outlet and the cylinder (154) housing the piston (156) controlling cam track 96, to provide a hydraulic lock preventing reverse flow of fuel due to torque tending to rotate cam track 96. A ball valve 110 in the injection pump inlet is limited in its opening movement by an adjustable stop 116. A hand priming pump may be connected to nipple 108. Distributor 40 has a transverse port 90 delivering to a plurality of injector passages 92.
Patent GB-1149666-A (GB)
Title: Photoelectrophoretic imaging
IPC: C07D295/04
Filed: 1966-03-17
Abstract: 1,149,666. Photo-electro-phoretic imaging. XEROX CORP. March 17, 1966 [May 3, 1965], No.34793/68. Divided out of 1,149,665. Heading G2H. Photo-electro-phoretic imaging process using two electrodes, one of which is at least partially transparent, comprises coating a suspension of electrically photo-sensitive particles in a carrier liquid on one of the electrodes, applying a D.C. potential across the electrodes, bringing the other electrode into contact with the suspension, increasing the applied potential, and exposing the suspension through the transparent electrode whereby an image of migrated photo-sensitive particles is formed on at least one electrode. The suspension may be coated on a Nesa glass electrode and contacted with an electrode in the form of a roller or an endless belt on movable pulleys; the potential may be increased either manually or automatically by a micro-switch engaged by the movable electrode.
Patent GB-887743-A (GB)
Title: Method of producing semiconductor rectifiers
IPC: H01L21/00
Filed: 1959-10-14
Abstract: 887,743. Semi-conductor rectifiers. BROWN BOVERI & CIE A.G. Oct. 14, 1959 [Oct. 17, 1958], No. 34807/59. Class 37. A semi-conductor rectifier is produced by alloying to the semi-conductor a material consisting of an alloying material, which substantially does not combine with or go into solution with the semi-conductor material, a doping impurity and a finely-dispersed additive which forms a compound with the semiconductor at the alloying temperature and is insoluble in the alloying material. The semiconductor may consist of germanium, silicon, silicon carbide, gallium arsenide or other A3B5 compound. The alloying material may consist of lead, tin or alloys therefore possible containing gold up to 40%. The doping material may consist of indium, gallium, arsenic, antimony or aluminium and the additive of tungsten, molybdenum, niobium or tantalum. Not more than 20%, (preferably 5%) of molybdenum may used. These additives form a compound with silicon at a temperature of 800‹ to 1000‹ C.
Patent GB-744576-A (GB)
Title: Production of alkali metal pyrophosphates and triphosphates of low bulk weight
IPC: C01B25/42
Filed: 1953-12-15
Abstract: Alkali metal pyro- and tri-phosphates of low bulk weight are obtained by spraying solutions or melts of dialkali orthophosphates into a hot gas zone so as to produce no friction or local heating which cause sintering and so that the diameter of calcined particles lies between 0.02-0.6 mms.  This low bulk weight orthophosphate calcinate is converted into polyphosphate at a temperature between 450 DEG -550 DEG C., again without local heating or friction that might cause agglomeration.  The end product is screened without crushing so that the product attains a particle diameter between 0.02-0.6 mms.  The introduction of substances which decompose at the temperature of conversion so as to maintain low bulk weight is also mentioned. Specifications 708,138 and 742,623 are referred to.
Patent GB-1197075-A (GB)
Title: Improvements relating to Low Tension Strand Plying Apparatus and Method
Inventor: VIBBER ALFRED W
IPC: D02G3/28
Filed: 1967-07-31
Abstract: 1,197,075. Plying strands; warping. A. W. VIBBBR. 31 July, 1967, No. 35016/67. Headings D1D and D1M. A plying arrangement comprising a supply 11 of a first strand a, a suport 20 carrying a package 21 of a second strand b, a shaft 14 operable to balloon strand a about package 21 and to ply the strands together at a plying point P, has means such as a driven capstan 45 to feed the strand a at substantially constant speed toward the plying point, means such as capstans 27 to feed the plied strand from the plying point under tension and means, e.g. situated at 22 to subject the strand b to a constant tension immediately before it passes to the plying point. By suitable arrangement of the tensions in the constituent and plied strands symmetrical or assymetrical plied yarns can be obtained. Because of capstan 45 the strands at the plying point can be subjected to a tension lower than normal. Auxiliary flyer. Flyer 24 in which the plying point is located is freely rotatable on a fixed tube 36. Capstan 45 is rotatable on a stub shaft mounted on the inside of the flyer and is geared to a gear 47 on the end of tube 36. Thus when the flyer is rotated by the ballooning strand the capstan is driven to forward the strand at a predetermined speed. The strand may as shown pass through a guide 44 to the capstan or directly to the capstan. An idler capstan may be provided on the opposite wall of the flyer to guide the strand b, so that the strand a and b are fed symmetricall to the flying point. Two driven capstans may be provided in the flyer to feed strand a. It is stated that a similar flyer may be provided inverted to be situated at the lower end of a spindle about which the strand balloons, passing downwardly. Beam winding In Figs. 4, 5, 6, not shown, plied strands, from a row of spindles similar to that shown in Fig. 2 are wound directly, side by side on a beam (169) to be ready for further use. The beam (169) is suported on a pair of rollers (162, 164) one or both of which are driven: hydraulic means cause arms, (170) to press the ends of the beam shaft downwardly so as to force the beam into driven engagement with rollers. (162, 164). The rollers (162, 164) and the beam are mounted within a casing (152) carried by rollers (160) so that the whole can be traversed, e.g. by cam means (182) along the axis of the beam so that the strands, which pass through a row of fixed guides (154) are traversed as they are wound on adjacent areas of the beam. Strand tensioning device Each strand passing to the beam may be tensioned by the device of Fig. 7, not shown. This comprises fixed rods (187, 189) under and over which the strand passes and a leaf spring (191) which presses the strand passing over rod (189) with a pressure which is adjustable by means of a thumb screw (194).
Patent GB-161134-A (GB)
Title: Improvements in flax harvesting machines
IPC: A01D45/06
Filed: 1919-10-29
Abstract: 161,134. Vessot, C. H., Vessot, C. U., and Pilkey, G. A. Oct. 29, 1919. Flax - pulling machines in which endless flexible pulling-members are pressed against one another by spring - controlled rollers, are provided with special means for mounting the rollers. The pulling-members consist of belts 29 overlying sprocket-chains 40, 44 passing round sprocket-wheels on the rollers 30. They aro mounted in angularly-disposed frames comprising upper and lower walls 19, 20 formed of angle members and connected to dividers 21. The flax is drawn between the pulling-belts by toothed belts 26 passing round flanged pulleys 24, 27. The driving-pulleys 24 have wearing faces of leather &c. The bearings 31 of the rollers 30 slide in lateral slots in the angle walls 19, 20. They are provided with lugs 33 engaged by adjustable springs 34 surrounding bolts 32 which are mounted in the vertical flanges of the angle walls. The rollers 30 for each belt are in two sets which are driven by separate chains 40, 44 passing round two sprocket-wheels on a roller 36. All the rollers 36. are driven from a transverse shaft by bevel-gearing and angularly-disposed shafts. The chains 40 are tensioned by means of tighteners 43. The belts 29 are tensioned and trued by adjusting the upper end rollers 30, which are not engaged by the chains 44. These rollers are movable by means of screws 48 engaging brackets 47 on pins 45 carrying the rollers. Curved cover strips 44<1>, Fig. 5, prevent fouling of the rollers 30 by weeds &c.
Patent GB-1193447-A (GB)
Title: Improvements in or relating to apparatus for measuring short time intervals
IPC: G04F10/00
Filed: 1967-07-31
Abstract: 1,193,447. Measuring short time intervals. TELEFUNKEN PATENTVERWERTUNGS - G.m.b.H. July 31, 1967 [Aug.11, 1966], No.35068/67. Heading G1U. In measuring a short time interval between two voltage jumps, U 1  , U 2 , the latter are fed with opposite polarity to a respective one of two passive signal channels I, II, and the output of a third channel III branched out of the other two gives an indication of the required time interval, the channels having matched characteristic impedances. The channels I and II may be in series or in parallel and the output of the channel III is measured by an integrator J feeding an analogue-digital converter W which gives a direct reading of the time interval.
Patent GB-346460-A (GB)
Title: Improvements in the electric illumination of pianos
IPC: G01M5/00
Filed: 1929-11-16
Abstract: 346,460. Illuminating pianos. DANNHAUSER, J. F. W. and DANNH€USER, C. A. O., (trading as DANNH€USER & CO., ING. F. W.), 30, Kolonnadenstrasse, Leipsic, Germany.) Nov. 16, 1929, No. 35101. Convention date, Nov. 16, 1928. [Class 75 (iv).] For the illumination of a piano a tubular electric lamp bulb is disposed along a projecting front edge of the lid and preferably concealed by, or let into, the edge. In the form shown the bulbs are arranged within a casing 6 disposed behind a border 7 which is detached from the remainder of the lid. The casing 6 is carried by a flat slide 4 which runs in guide rails 2 on an insulating baseplate 1 fixed to the lid. The plate 1 carries contact springs 11 which are connected to the main terminals 12 and are adapted to be engaged by switch blades 10 carried by insulating pieces 9 which are mounted on the slide 4 and to which are connected the leads from the bulbs, so that the latter are lit when the slide 4 is drawn out to the front. The casing 6 may be rotated for controlling the direction of the light emitted through the windows and preferably is insulated from the slide 4 and border 7 by means of cork.
Patent GB-1156347-A (GB)
Title: Improvements in selective printing devices
Inventor: FALCHERO EMILIO
IPC: B41J1/20
Filed: 1967-07-31
Abstract: 1,156,347. Selective printing. OLIVETTIGENERAL ELECTRIC S.p.A. 31 July, 1967 [29 July, 1966], No. 35165/67. Heading B6F. [Also in Division G4] In a printer in which the record material 5 is moving at a constant speed in line-space direction and at least one row of characters 4 is movable in a letter-space direction along a printing line, the characters have also imparted thereto a movement in line-spacing direction, such component of movement in the linespacing direction being equal to the line-spacing feed of the record material. As described the row of characters 4, or several rows of characters (see Figs. 5a-5d) are disposed on an endless belt or ribbon 1 so that when the characters are adjacent the record material they extend at a slight angle relative a line of printing. If, for example, the character A is to be printed in letter-space position at the left-hand side of the paper a hammer printing impression occurs immediately the character A is positioned at the left-hand position of the paper, but if the character A is required at the extreme right of the paper, the paper will have line-spaced a distance due to the continuous feed. The character A on the belt therefore has to be in an equally advanced position and the angle of inclination of the travel of the row of characters is arranged accordingly. The axes of the pulleys 2, 3 are correspondingly arranged at an angle. Hammer impression.-An electromagnetically operated hammer 31 is arranged in each character position and is long enough in line space direction to engage the first or last type in a row of characters on the belt. They are also stepped, one above the other, to equal the angle of inclination of the type. The hammers have a slight pivotal movement in line-spacing direction to allow for movement of the paper. Electrical operation.-See Division G4.
Patent GB-1391292-A (GB)
Title: Photographic exposure control systems
IPC: G03B7/16
Filed: 1972-07-27
Abstract: 1391292 Photographic camera exposure control POLAROID CORP 27 July 1972 [3 Aug 1971] 35183/72 Addition to 1371995 Heading G2A A photographic camera has a follow-focus arrangement as described in Specification No. 1371995, the coupling between the focus adjustment and the exposure aperture regulator means including a cam 158, Fig.2, movable in correspondence with the movement of the focusing means and a cam follower 156 which variably positions on interceptor leg portion 142 in the locus of travel of the exposure regulator means 34 as it moves under the action of a spring 52 to gradually close the exposure aperture formed by apertures 24, 26 in blades 16, 18. The cam is disposed on a focusing adjustment gear 124 rotation of which rotates a focusing bezel. The cam follower is mounted on an assembly 148 having elongate slot 160 which fits over a bushing 130 supporting gear 124 and an elongate slot 162 in which a pin 164 on lever 166 slides. The assembly has apertured tabs 152, 154 to which is pivotally mounted the interceptor 140. The interceptor is normally biased out of the locus of travel of striker pin 138 mounted on exposure regulator means 34 by a plunger assembly 168 engaging interceptor extension 178, but upon energization of an electromagnet 180 a plunger 182 is attracted into the electromagnet so that an arm portion 194 of a pull-down bar 186 abuts extension 174 to pivot interceptor 140 so that interceptor leg  portion 142 now lies in the locus of travel. Lever 166 is coupled for movement with the adjustment of a variable density optical wedge which is adjusted in front of a photo-cell to allow for minor variations in film speed. This adjustment permits automatic exposure control in ambient light conditions, and the same adjustment is thus allowed for under flash-light conditions. The focus adjustment wheel has associated therewith a spring loaded detent pin 200 so as to prevent rotation of the wheel outside of the focus range. An electromagnet 62 when energized closes the exposure aperture by the coupling between a comb-shaped connector 70 attached to electromagnet plunger 66 and a pin 46 which couples blade 18 to the aperture regular means.
Patent GB-191381-A (GB)
Title: Improvements in or relating to bank contacts for switches as used in telephone systems
IPC: H01H63/06
Filed: 1922-12-28
Abstract: 191,381. Siemens &. Halske Akt.-Ges. Jan. 6, 1922, [Convention date]. Selectors for automatic exchange systems. In a method of constructing terminal banks, sets of parallel bare wires L, Fig. 1, embedded in inclined insulating plates J separated by alternate long and short spaces K, K<1>, are first bent as shown in Fig. 2 and then folded about axes in the centres of the spaces K, K<1>, in directions parallel to the inclined edges of the plates J so that adjacent plates overlap and form the structure shown in Fig. 3. At one side the portions of wire corresponding to the spaces K<1> are bent into small loops O which constitute the bank terminals, whilst on the other side larger loops O<1> may be used for multipling connections, the extra wire corresponding to the larger spaces K affording flexibility in mounting the banks. The parts of the structure where adjacent plates J overlap may be stiffened by iron plates P secured by rivets and provided with end pieces Z for attachment to the switch racks.
Patent GB-1080784-A (GB)
Title: Improvements in or relating to composite laminated articles
Inventor: BORUP HERBERT HJALMAR
IPC: F16L59/02
Filed: 1964-08-28
Abstract: 1,080,784. Laminates. KAISER ALUMINUM & CHEMICAL CORPORATION. Aug. 28, 1964, No. 35357/64. Addition to 982,501. Heading B5N. In a process for laminating at least one outer metal layer 2 to a core 1 by means of a thermoactive adhesive 4 and applying heat and pressure, the metal member, while in its expanded condition due to the heating, is stretched by a specific amount to relieve internal stresses in it and produce the desired flat or curved shape in the resulting composite article. The core may be plywood, hardboard or a suitable honeycomb, asbestos or plastics material. It may be faced on both sides with metal, or metal on one side and resin-bonded paper or fibrous material, hardboard or the like on the other. Suitable adhesives are phenol formaldehyde resins on cellulosic carriers, epoxy resins and neoprene phenolics. The stretching operation may be effected by bending the laminate, by applying a load between spaced supports as illustrated either in Fig. 2 (not shown), or between rollers (Fig. 3).
Patent GB-429983-A (GB)
Title: Improvements in or relating to rotary valves for internal combustion engines
IPC: F01L7/10
Filed: 1934-12-10
Abstract: 429,983. Valves; cylinders. CHAUDE, B. J. A., 35, Avenue Foch, La Garenne, Seine, France. Dec. 10, 1934, No. 35423. [Classes 7 (ii) and 7 (vi)] A spherical valve 5 formed with recesses 9, 9<1> is rotated at onequarter speed so as to control exhaust at 6, inlet at 7, and a sparking-plug at 8. The piston 11 is hollowed to the same radius as the valve, the latter being arranged so that there is no clearance at the end of the exhaust stroke as shown in Fig. 2, but a combustion space is provided, as shown in Fig. 4, at the end of the compression stroke. The recesses 9, 91 and the exhaust port 6 may be curved to facilitate the flow of the gases therethrough. Packing-rings are fitted to the valve about an axis at right angles to the valve shaft 4.
Patent GB-775502-A (GB)
Title: Process for improving the properties of asphalt and similar bituminous products
IPC: C08L95/00
Filed: 1954-12-08
Abstract: The hardness, strength and elasticity of bituminous materials, e.g. asphalt, are increased by the addition of 1 to 25 per cent by volume of an inorganic filler, insoluble in bitumen, and of a mean particle size between 0,002 and 0,1 micron.  Specified fillers are silica, alumina, titania, ferric oxide, calcium and barium sulphates and carbonates, magnesium carbonate, calcium, aluminium and complex silicates singly or in admixture.  They may be added to heated asphalt or asphalts diluted with solvents, e.g. benzene, kerosene or white spirit, which are subsequently driven off. Coarse filler may also be present.
Patent GB-522134-A (GB)
Title: Improvements in or relating to means for facilitation of the association of supporting devices for x-ray tubes with means for minimising secondary or undesired radiationof x-rays
IPC: A61B6/00
Filed: 1938-12-07
Abstract: 522,134. R÷ntgen-ray apparatus. GENERAL ELECTRIC CO., Ltd., and CALDWELL, J. T. Dec. 7, 1938, No. 35605. [Class 98 (i)] Means for disconnectibly associating the supporting device of an X-ray tube with means such as a Bucky diaphragm for minimizing stray radiation comprises a member formed of two relatively movable parts carried by the tubesupporting device, and a member associated and moving longitudinally with h the Bucky diaphragm in which the first 'member engages so as to move with the diaphragm. The form shown comprises a triangular latch member in two parts 14, 15 hinged together at 11, the base being hinged to the X-ray tube stand 3 and the apex carrying a pin 13 which engages in a recess 6 in a member 7 attached to the Bucky diaphragm 4. The device is unlatched by raising the part 14 of the latch, thus withdrawing the pin 13 from the recess 6.
Patent GB-627876-A (GB)
Title: Washer for cloth covered rollers
IPC: B41F35/00
Filed: 1946-12-02
Abstract: 627,876. Printing. MORT, R. H. Dec. 2, 1946, No. 35658. [Class 100 (ii)] A machine for washing cloth-covered rollers 46 such as are used for damping planographic printing surfaces comprises a number of rollers 22, 23, 24, 25 formed with helical grooves and mounted so as to rotate in cleansing-liquid in a tank 11 supported by legs 13 and fitted with a hinged cover 49. The rollers 46 rest on the rollers 22-25, and adjacent rollers are arranged to have different peripheral speeds which are obtained by making the rollers of different sizes and driving their axles at the same speed as by a common drive chain 27, Fig. 3, which engages gears 18, 19, 20, 21 on the axles of the rollers, the chain 27 being kept out of gear with the upper parts of gears 19, 20, by means of an adjustably-mounted idle gear 19. In a modification, rollers 22, 23, 24, 25 of equal size are driven by a common chain engaging gears of different sizes on adjacent rollers. The helical grooves of adjacent rollers are of opposite thread. The cleaning of the rollers 46 is assisted by brushes 51 mounted in the roof 49 and pressed downwards by springs 54 and capable .of being manipulated by means of knobs 53 accessible from the top of the cover.
Patent GB-468036-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/10
Filed: 1935-12-24
Abstract: 468,036. Electrolytic condensers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 24, 1935, No. 35661. Convention date, Jan. 25. [Class 37] An electrolytic condenser is enclosed in a casing 6, the space between the unit 1 and the sealing compound 13 at one or both ends being filled with a fibrous material 5. Wadding being mentioned. Metal shields 8, 81 are used to separate the compound from the wadding and may also act as terminal pieces for the internal and external connections 2, 3 and 9, 10, as shown, the joint always being protected by the sealing compound. A layer of wadding may extend between the unit 1 and the tubular casing 6 as shown, and an aperture 7 may be provided for escape of gases.