baber/WOPTO huggingface dataset:
Patent GB-496610-A (GB)
Title: Improvements relating to air induction systems in direct fuel injection engines of the compression ignition type
IPC: F02B3/00
Filed: 1937-10-18
Abstract: 496,610. Two-stroke and four-stroke engines. HAMMER, A. A. H., and REBBECK, F. E. Oct. 18, 1937, No. 28271. [Classes 7 (ii) and 7 (vi)] In a compressionignition engine charged by a pump c, the air is first throttled in passing a valve a controlled simultaneously with the fuel supply and then allowed to expand in a chamber b having not substantially less than half the total cylinder capacity of the engine ; the air is thus heated, and at low speeds a back pressure is produced, which causes exhaust to be retained in the engine cylinders. The valve a may be a rotary hit- and-miss valve as shown; the engine may operate on a two-stroke or a four-stroke cycle, the pump being either a rotary pump or formed by the underside of the working piston. A multi-cylinder engine may be operated by a single pump c and chamber b.
Patent GB-1112195-A (GB)
Title: Improvements in servo-mechanisms
IPC: H02P7/288
Filed: 1965-07-05
Abstract: 1,112,195. Electric selective signalling. ROBERT BOSCH G.m.b.H. 5 July, 1965 [3 July, 1964], No. 28304/65. Heading G4H. [Also in Divisions F2 and H2] A step-by-step servomechanism comprises input switches (e.g. transistors) connected in parallel with segments of a voltage divider chain such that, each switch when operated short circuits one part of the chain and when unoperated short - circuits another part, the switches being operated or not so as to shortcircuit all but a selected one of the segments, and a reversible output motor driving a contact arm to seek and stop at the selected segment. The output motor may control a vehicle gearbox. Engagement of the first gear during reverse travel and of the reverse gear when the vehicle has an excessive forward velocity is prevented by two series-connected switches 27, 26 (not shown) which are closed when the vehicle speed exceeds 5 km/h. and when the contact arm is positioned at the segment corresponding to neutral in the gear-box, respectively. When both are closed, these two switches apply a voltage through the contact arm to prevent the output motor starting.
Patent GB-1118143-A (GB)
Title: Improvements in a connector for display structure and the like
IPC: F16B12/40
Filed: 1965-07-05
Abstract: 1,118,143. Furniture joints &c. F. J. BERNARD. 5 July, 1965, No. 28350/65. Heading A4H. A connector for display structures or furniture parts has two parts 12, 13 which fit together to form a ring-like structure, the minor part 13 being detachable or pivotable so that a structural element can be inserted through the gap normally occupied by part 13. The part 12 has grooves 22, 23 forming guideways for the element 13. In a modification the ring is of rectangular form. The connector has threaded openings 26 to receive a threaded fastener element 27 for clamping structural pieces to the periphery of the connector. An electrical connector for such apparatus as lamps may be incorporated in the device.
Patent GB-869724-A (GB)
Title: Improvements in and relating to electrical rectifier assemblies
IPC: H01L25/07
Filed: 1959-08-19
Abstract: 869,724. Semi-conductor rectifiers. UNITEDCARR FASTENER CORPORATION. Aug. 19, 1959 [Sept. 8, 1958], No. 28416/59. Class 37. A rectifier assembly comprises a rectilinear housing 12 of insulating material, two selenium rectifier cells 22 located within, but standing slightly proud of, bores in the bottom of a recess in the housing and resting upon the heads 46 of cathode leads 14 which pass through apertures in the housing and a resilient conductor 18, e.g. of copper, disposed within the recess, having a base portion and legs 41 which are engaged by a cap 20 fitted within the top of the recess, so as to urge the base portion into contact with the rectifier cells 22 and thus to connect the cells electrically with a capped anode lead 16 which passes through apertures in the housing and the base portion and is secured to the latter by soldering, as shown, or by a clipping arrangement. The assembly is sealed by potting compound 50. The use of germanium cells is mentioned.
Patent GB-1437605-A (GB)
Title: Lip construction for bucket-wheel excavators
IPC: E02F3/18
Filed: 1973-06-15
Abstract: 1437605 Excavator buckets GREAT CANADIAN OIL SANDS Ltd 15 June 1973 [15 June 1972] 28598/73 Heading E1F For securing to the leading edges of an excavator bucket is a U-shaped, digging lip structure having transversely spaced and generally longitudinally extending digger teethreceiving sockets mounted on the base and sides of its forward digging edge of which the central portion of the base is rearwardly displaced relative to the junctions of the base and the sides of the digging edge. Preferably the central portion is symmetrically displaced rearwardly, e.g. in a stepped configuration 13a-13f with a tooth-receiving socket being then provided at each step. Mounting of identical digger teeth in the sockets of such a lip structure will result in material being first engaged by teeth at the corners of the structure. Specifications 1437606, 1437607/75 and 962645 are referred to.
Patent GB-603741-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K1/14
Filed: 1945-10-29
Abstract: 603,741. Cores for dynamo-electric machines. EMERY, J. N. Oct. 29, 1945, No. 28600. [Class 35] A field magnet, particularly for D.C. machines comprises a flanged bobbin of non-magnetic material having, as pole-pieces, magnetic inserts consisting of core sectors 1, 2 joined to flange sectors 5 at opposite ends of the bobbin, a cylindrical magnetic shell 8 enclosing the whole. The rotor is situated within the tube which carries the exciting coil 7.
Patent GB-370342-A (GB)
Title: Driving drum for magnetic talking machines, the sound records of which are driven by frictional forces
IPC: G11B15/28
Filed: 1931-10-15
Abstract: 370,342. Driving-pulleys or friction wheels. STILLE INVENTIONS, Ltd., 35, Little Newport Street, London. Oct. 15, 1931, No. 28688. Convention date, Oct. 15, 1930. [Class 80 (i).] A drum for driving frictionally a magnetic band record in talking machines has rubber or other elastic friction material fitted into parts of its surface. This material preferably stands above the drum surface, but is compressed flush therewith under the pressure of the record. The drum may be formed with a ring of friction material between two steel discs, or the material may be applied as inserts circumferentially spaced around the drum and may be in two or more rings Z<1>, as shown in the Figure, in staggered relation. The inserts may be formed as circular studs.
Patent GB-838805-A (GB)
Title: Microwave tube
IPC: H01J25/62
Filed: 1958-09-08
Abstract: 838,805. High frequency discharge apparatus. SYLVANIA ELECTRIC PRODUCTS Inc. Sept. 8, 1958 [Sept. 6, 1957], No. 28774/58. Class 39(1). A strophotron electron oscillator tube has hyperbolic accelerator electrodes 14, 16 and hyperbolic reflectors 18, 20, adjacent electrodes having common asymptotic planes 26, 28. Electrons are projected from the cathode 34 in the direction of a constant magnetic field and drift in oscillatory paths to a collector 36. The load 38 is connected between the reflectors 18, 20. Specification 838,804 is referred to.
Patent GB-298609-A (GB)
IPC: D01F11/02
Filed: 1928-10-06
Abstract: 298,609. Wolff & Co., and Weingand, R. Oct. 12, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cellulose solutions, processes for making filaments and films from; modifying physical properties of formed cellulose articles.-Films, filaments, and other products obtained from cuprammonia cellulose, viscose and other cellulose solutions are freed from hemicellulose, wood gum, &c. by treatment. with alkali lye. To prevent any after-formation of hemicellulose due to the alkali lye, the films, &c. may before being subjected to the washing operation, be treated with salt solutions or with alcohols. The films, Rc. are washed with water, washing being assisted by electroendosmose with or without the use of diaphragms. After washing, the films, &c. may be neutralized with dilute acid. Films so treated may be used as supports for light-sensitive layers, while the treated filaments exhibit improved dyeing properties,
Patent GB-302454-A (GB)
Title: Improvements in or relating to automatic temperature regulating and controlling devices
IPC: G05D23/20
Filed: 1927-10-28
Abstract: 302,454. Etablissements Poulenc FrÞres, and Chagnaud, A. Oct.. 28, 1927. Regulation, auto - matic.-A device for controlling temperature employs an indicating device such as a galvanometer and a member which reciprocates in a direction at right angles to the pointer so as to contact with it and thereby complete an electric circuit when the pointer is in a predetermined position, another electric circuit being completed independently of the pointer when the pointer is in any other position. The indicating pointer A, Fig. 2, which may be controlled by a thermoelectric couple in a furnace moves in a horizontal plane immediately below a vertically reciprocating bar B. The bar B carries a slider with a pair of contacts G, while another pair of contacts F are arranged below the bar. The slider is so arranged that when the temperature is too high, the pointer passes below the contacts G which are thereby closed and the temperature reduced. If the pointer is clear of the slider as the result of the temperature being too low, the bar B descends sufficiently to close the contacts F and increase the heating. A knife edge S is provided on the slider, so that if the pointer A is immediately below it, it is deflected either to left or right to close contacts F or G. The bar B is reciprocated by means of a bimetallic strip L fixed at M and having a heating resistance E connected to the electric supply circuit independently of the galvanometer circuit. The strip L when cool completes the heating circuit through contacts 1, 2 and when heated by the coil E is deflected downwards to break the circuit. The strip L rocks the bar B through a spring R, or by completing the circuit of electromagnets, or otherwise. Fig. 4 indicates the circuit arrangement, in which w, w<1> are the terminals connected to the furnace heater, and #, #<1> are the main terminals. The armature 21 of an electromagnet 23 co-operates with a latch 22 forming the armature of an electromagnet 24. Terminals F<1>, and G<1> are associated with the contacts F, G, of Fig. 2. If the furnace is too cold, the contacts F<1>, F<1> are closed, completing the circuit #<1>, #<1>, F<1>, 23, 17, 21, #, whereby the magnet 23 is energized to close contact 16. This completes circuit #, 21, 16, # and increases the heating. The same result would follow if the armature 21 were latched in contact with 16 when the contacts F', F<1> were closed. If the furnace is too hot, the contacts G, G<1> are closed. completing the circuit through magnet 24 and releasing the latch 22 so that the circuit to the heater is broken. Repeated closures of contacts G<1> G' then have no effect until the contacts F<1>, F<1> have again been closed.
Patent GB-319587-A (GB)
IPC: C08F4/28
Filed: 1929-09-23
Abstract: 319,587. Du Pont de Nemours & Co., E. I., (Assignees of Lawson, W. E.). Sept. 22, 1928, [Convention date]. Polymerized vinyl esters; polymerized styrene. -The polymerization of vinyl compounds such as vinyl acetate, chloride and chloracetate and styrene is effected by the action of heat or light or of both heat and light when ozone is used as the catalyst. The vinyl compound may be dissolved in a solvent which has been treated with an ozone-air mixture for 2 hours. In the examples (1) to (4), vinyl acetate, chloride, chloracetate, and styrene respectively are heated with ozonized methanol; (5) a solution of styrene in ethylbenzene is heated with ozonized butyl alcohol; (6) a solution of styrene in ethylbenzene is treated with ozone. for 15 minutes, mixed with untreated styrene, and heated; (7) vinyl chloride is heated with ozonized ethylene dichloride; (8) vinyl chloride dissolved in ozonized methanol is exposed to daylight outdoors for 3 days; it is stated that uranyl nitrate in place of the ozonized methanol would give a comparable, but smaller, yield; (9) a solution of vinyl chloride in ozonized methanol containing 10 per cent of water is heated, or (10) exposed to daylight outdoors for 2¢ days. In a discussion of the action of other catalysts it is stated that uranyl nitrate is effective only in presence of light; that only barium and lead peroxides will polymerize vinyl acetate and only barium peroxide is effective with vinyl chloride. The process may be effected in a continuous flow system, as claimed in Specification 319,588; in such systems the solvents can be charged with ozone continuously in a manner similar to that employed for the purification of water. Specification 319,591 also is referred to.
Patent GB-795701-A (GB)
Title: Process of dyeing polyester materials
IPC: D06P3/52
Filed: 1956-09-20
Abstract: Linear aromatic polyester fibres, fabrics, films and like shaped articles are dyed with a monoazo dyestuff of the formula: <FORM:0795701/IV (b)/1> wherein A and B = radicals of the benzene series free from sulphonic and carboxylic acid groups, R = a carboxylic acid ester or carboxylamide group having at most 5 carbon atoms and n = 1 or 2.  Dyeing is effected at boiling or higher temperature if desired in the presence of a swelling agent, such as benzoic acid.  The dyestuff of the formula: <FORM:0795701/IV (b)/2> is prepared by diazotizing 4-amino-benzoic acid methyl ester and coupling with 1-phenyl-3-methyl-5-pyrazolone.  Other dyestuffs in which the radical R is C2H5-OOC-, HO-H4C2 HN.OC-, and H2N-OC- are described.
Patent GB-812910-A (GB)
Title: Improvements in hydraulic tracing valve units
Inventor: HAYES GEORGE
IPC: B23Q35/36
Filed: 1954-10-07
Abstract: 812,910. Copy-milling. HAYES ENGINEERS (LEEDS) Ltd. Sept. 30, 1955 [Oct. 7, 1954], No. 28920/54. Class 83 (3). An hydraulic tracervalve unit comprises an axially movable valve member 15 controlled by a stylus 9, and fluid pressure means 6, 14 between the stylus and valve member to multiply the stylus movement. The stylus rod 9 engages a block supported by a diaphragm 12 and moves the piston 6. The latter, through liquid contained in a chamber 16 sealed by an adjustable member 17, gives an increased movement to the piston 14 engaged by the valve 15. The ratio of movement may be varied by replacing the piston 14 and its cylinder liner 3 by members of different dimensions.
Patent GB-762920-A (GB)
Title: Improvements in or relating to the suspension of fittings for electric lamps and the like
IPC: F21S8/02
Filed: 1954-10-07
Abstract: 762,920. Supporting lighting fittings. LUMALAMPAN AKTIEBOLAG. Oct. 7, 1954 [Oct. 8, 1953], No. 28966/54. Class 75(3) A trough 1 containing electric lamps is provided with at least one supporting member 4 which can be moved from an inoperative position within the contour of the trough into an operative position and there locked, the support member now projecting outside the trough to rest on a fixed support 5. Each support member 4 has screws 3 adapted to slide in elongated slots 2 in the trough and to clamp the support member 4 to the outside of the trough, the heads of the screws being directed into the interior of the trough. The support members may be arranged to rotate instead of sliding. One support member is provided at each corner of a trough which is rectangular in plan. The trough may be pivotally mounted by utilizing only the support members 4 at one end of the trough. The part of each support member 4 which engages the fixed support 5 may be some way above the bottom of the trough and a guide for the support member may be provided on the trough. The fixed support 5 may be formed by strips secured to ceiling joists or by a frame adapted to be secured to a ceiling and containing a shelf on which the support members 4 rest. Specifications 726,316 and 728,189 are referred to.
Patent GB-828272-A (GB)
Title: Improvements relating to compartmental silos
IPC: B65D88/32
Filed: 1957-09-13
Abstract: 828,272. Silos. BAUMGARTEN MUHLEN - UND SPEICHERBAU G.m.b.H., A. Sept. 13, 1957 [Sept. 20, 1956; Aug. 16, 1957], No. 28970/57. Class 20(1) [Also in Group XXX] In a silo which is subdivided into separate bins, each bin is provided with a single sloping surface terminating at an outlet situated along one of a pair of opposite walls of the silo, the sloping surfaces of adjacent bins sloping in opposite directions. The arrangement is thus such that each sloping surface may be extended at its lower end, thereby enlarging the corresponding discharge opening. Two adjacent bins a, a 1  of a silo are shown in Fig. 5, the floors 4, 5 of the bins being defined by intersecting planes 6, 7, each floor being extended below the line of intersection 9 of the said planes so as to pass beneath the upper part of the floor of the adjacent bin, thereby enlarging the outlet 8a from each bin. The invention may be applied to a silo having any number of subdivisions, in which case the floor of an intermediate bin may be extended to pass beneath the floors of both adjacent bins. Also, in the case where a large number of bins is in use, conveyer systems may be installed beneath the two rows of outlets to assist in the discharge of the stored product. Further, each bin may be provided with a shutter at its outlet in order to control its rate of discharge.
Patent GB-1388839-A (GB)
Title: Fine particulate solids
IPC: B02C19/00
Filed: 1971-06-21
Abstract: 1388839 Comminuting ENGLISH CLAYS LOVERING POCHIN & CO Ltd 15 June 1972 [21 June 1971] 29066/71 Heading B2A The particle size distribution of a particulate solid is modified by compressing the solid at a pressure of at least 100 atmospheres, typically at 20,000 to 40,000 p.s.i. in a dry state, typically less than 1% moisture content, and comminuting the mass. The solid may be e.g. English kaolin clay used for paper coating compressed to form a rod in an isostatic press and then compacted in a mortar, or in a hammer mill, pin mill roller mill or in a centrifugal attrition mill. The two steps may be repeated.
Patent GB-187974-A (GB)
Title: Improvements in or relating to circuit breakers
IPC: H01H73/42
Filed: 1922-10-25
Abstract: 187,974. Wijk, P. G. van. Oct. 26, 1921, [Convention date]. Automatic circuit-breakers, &c.- In overload cut-outs in which the circuit may be broken automatically or manually, a knob is provided which when turned continuously by hand in one direction alternately opens and closes the circuit. and when turned in the other direction, breaks the circuit but cannot remake it. On the occurrence of an overload, the electromagnet 2 attracts its core 5, pins 7 upon which strike against a lever 9 pivoted at 10 and release its right hand end from engagement with a tooth on the lower end of the contact-carrying member 12 which is pivoted on an axis 14, with the result that the member 12 is urged by a spring 28 to move counter-clockwise, Fig. 2, and break contact at 17. The member 12 has pivoted to it at 25, Fig. 4, an arm 23 which is normally pulled by a spring against a projection 26; and the hand knob 15 which also moves about the axis 14 carries a cam 22, a disc 19 and a finger 31, Fig. 10. When the knob 15 is rotated in a clockwise direction, Fig, 4, the cam 22 eventually presses against the lever 23 and so drives the member 12 to the limiting position shown in Fig. 2. Further rotation of the knob 15 causes the cam 22 to lift and pass beneath the arm 23 and it is not till the knob 15 is thus freed from the member 12 that the resetting of the cut-out is completed by the cam 20 on the disc 19 allowing contact to be remade at 17. When the knob 15 is rotated in a counter clockwise direction, the cam 22 lifts and passes beneath the arm 23. The finger 31 carried by the knob 15 is adapted to press down the lever 10 and so release the contact-carrying member 12 once every revolution, whichever way the knob 15 is turned.
Patent GB-1546132-A (GB)
Title: Device for guiding weft threads in shuttleless weaving looms
IPC: D03D47/30
Filed: 1976-07-13
Abstract: The device for inserting the weft thread on shuttleless weaving machines, especially pneumatic jet-weaving machines, comprises a confusor which is movable relative to the reed and which is formed by a drop-wire system, the drop wires (15) of which are arranged in an aligned row and are provided with threading-out slits (14) for the weft thread. The mouths (18) of the threading-out slits (14) of the drop wires (15) are oriented towards the dents of the reed (5) in the weft-insertion position. This prevents compressed air from escaping through the threading-out slits and consequently also the weft thread from being carried along with it in an undesirable way. <IMAGE>
Patent GB-1184450-A (GB)
Title: Positioning Mechanism for a Rotary Electric Switch
IPC: G05G5/04
Filed: 1967-12-08
Abstract: 1,184,450. Electric switches. GEMCO ELECTRIC CO. 8 Dec., 1967 [12 Dec., 1966], No. 29130/69. Divided out of 1,184,449. Heading H1N. The description is the same as that of the Specification 1,184,449, but the claims are directed to the lost-motion spring return device for the rotary electric switch.
Patent GB-192483-A (GB)
Title: Improvements relating to liquid level indicating apparatus
IPC: G01F23/16
Filed: 1921-11-02
Abstract: 192,483. Reavell, W. Nov. 2, 1921. Indicators actuated by pressure of head of liquid. - In liquid-level indicators of the type in which the pressure due to the head of liquid in the vessel a is communicated to a pressure gauge e by an expansible capsule and a column of liquid, the capsule c is immersed in the liquid, and a liquid, such as glycerine, entirely fills an enclosed system comprising the capsule, the tube d and the gauge e. The top of the vessel a communicates with the atmosphere by a pipe h or with the other side of a differential pressure gauge. To test whether the enclosed system is full or not, a cylinder f having a screw-plunger g is provided on the tube d. The system is full if on screwing in the plunger the pointer moves and then remains stationary.
Patent GB-909875-A (GB)
Title: Egg-setting tray
Inventor: FAIRBAIRN GEORGE BAILIFFE
IPC: A01K41/06
Filed: 1960-08-23
Abstract: 909,875. Egg-setting trays. SECURA Ltd. Aug. 23, 1961 [Aug. 23, 1960], No. 29156/60. Class 5(2). An egg setting tray comprises two superimposed frames, the lower frame comprising a grid of small mesh to support the eggs and the upper frame consisting of a wire mesh grid the intersecting wires of which extend between the wires of the lower frame to form openings of larger size thereby permitting limited angular movements of the eggs,
Patent GB-370362-A (GB)
Title: Improvements in method of recovering nitric acid
IPC: C01C1/18
Filed: 1930-09-29
Abstract: Controlling chemical processes, automatically.--Waste gases obtained in nitrating operations and containing nitric acid as mist or fumes are treated with gaseous ammonia to produce ammonium nitrate.  Any sulphuric acid mist present is preferably removed mechanically, for example by means of a fan, before the treatment with ammonia.  The ammonium nitrate may be separated by means of a bag filter or electrical precipitation, or may be washed out by a spray of water. The amount of ammonia gas may be proportioned to the concentration of the acid in the gases by continuously passing a sample thereof through the conductivity cell of a Leeds and Northrup machine arranged to act on a valve controlling the ammonia supply.  The amount of ammonia should be equivalent to or in slight excess of the amount of acid.