baber/WOPTO huggingface dataset:
Patent GB-798361-A (GB)
Title: Improvements in or relating to cathode ray tube display systems
Inventor: SHIPWAY ROGER PROWSE
IPC: G01S7/12
Filed: 1956-01-31
Abstract: 798,361. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 16, 1956 [Jan. 31, 1956], No. 3063/56. Class 40 (3) [Also in Group XL (c)] In an arrangement for producing a prolonged visual presentation of information, e.g. a radar P.P.I, indication, signals representative of such information derived from a source 1 are reproduced as an image by means of a tube 2 the screen of which has approximately zero " afterglow " and such image is projected, via a halfsilvered mirror 3, on to a picture signal generating tube 4 the signal output of which, in addition to being reproduced as an image on a final display tube 9 (also having approximately zero " after-glow ") is also fed in a loop circuit including a delay device 5 to a further tube 6 (again having approximately zero " after-glow ") the image produced by which is directed, via the half-silvered mirror 3, on to tube 4 such that it registers with the image just " scanned off." In this manner the image on tube 4 from tube 2 is constantly " replenished " from tube 6 resulting in the production by tube 9 of an image having an effective " after-glow " of duration dependent on the gain in the loop circuit between tubes 4 and 6. This gain, which is manually adjustable by means of amplifier 14 is automatically maintained by an A.G.C. arrangement in which additional signals from an oscillator 12, above the range of useful video frequencies, are combined in a mixer 13 with the signal output of delay device 5 so that, by comparing the amplitudes of the input signals to tube 6 with the output signals from amplifier 14 in the network 15, any departure from equality (due to undesired variations in the loop gain) is effective to produce a signal which is supplied via a filter 17 (passing signals of the frequency of oscillator 12 but not useful video frequencies) to an error detector circuit 18 adapted to produce a control voltage which is supplied to amplifier 14 to control the gain thereof. The effective " after-glow " of tube 9 may be reduced to zero by any means which breaks the loop circuit such as by opening switch 11 or employing a shutter to interrupt the light coming from tube 6.
Patent GB-888466-A (GB)
Title: Improvements in and relating to the production of bonded fibrous materials
IPC: D04H1/4334
Filed: 1958-01-30
Abstract: 888,466. Agglutinated fibrous materials; laminates; paper containing synthetic polymers. FREUDENBERG KOMM.-GES. AUF AKTIEN., CARL. Jan. 30, 1958 [Feb. 5, 1957], No. 3075/58. Classes 42 (2), 96 and 140. A method of producing bonded fibrous materials comprises impregnating an unwoven loose fibrous structure with a curable elastomeric bonding-agent and a reinforcing agent, as hereinbelow defined, heating the impregnated structure to produce an intermediate product in which the bonding agent is still uncured, superimposing a plurality of said intermediate products and subjecting them to a temperature of at least 100‹ C. and a pressure of at least 50 atmospheres for a minimum period of 15 minutes. By the term " reinforcing agents " is meant reactive precondensates of aldehydes and/or ketones, reactive aminoplastics and/or phenol plastics, or reactive precondensates of aldehydes and/or ketones with phenols or amino compounds such as urea, dicyandiamine, guanide and triazine or their substitution products, and ethoxyline resins, polyester resins, polycarbonate resins, polyamide resins and vinyl resins. Specified bonding agents are natural rubber, synthetic rubber, silicone rubber and acrylate resins. The bonding agents and reinforcing agents may be applied in the form of aqueous dispersions or emulsions which may also contain vulcanization agents, vulcanization accelerators, agents favouring condensation, polymerization or polycondensation, age resistors, wetting-agents, stabilizers, plasticizers, fillers and pigments. The fibres may be animal, vegetable, mineral, synthetic or semi-synthetic. Specified fibres are those of bast, polyamide, polyester, regenerated cellulose, cellulose acetate, ramie, glass and polyvinylidene-polyvinyl chloride. The heat treatment may be carried out by means of infra-red rays or high-frequency treatment. The fibrous web may be produced by carding or blowing, or by a papermaking technique. An example described the formation, in a paper-making machine, of a fibrous pulp containing polyamide, polyvinylidene-polyvinyl chloride and ramie fibres with a curable elastomeric bonding agent and a reinforcing agent. The pulp is dried, treated with an aqueous colloidal melamine formaldehyde precondensate and then hot-calendered to form a sheet material from which annular discs are stamped out. These are stacked on a perforated metallic hollow body and hot-pressed to vulcanize and harden them and form a hollow cylinder from which a roller may be produced by applying the cylinder to a roller core. Reference has been directed by the Comptroller to Specification 845,418.
Patent GB-838888-A (GB)
Title: Improvements in or relating to supports for plant pots
IPC: A01G9/02
Filed: 1958-01-31
Abstract: 838,888. Watering plants. FOSTER, D. J. Feb. 2, 1959 [Jan. 31, 1958], No. 3227/58. Class 6(2). [Also in Group XIV] A flower pot 12 is supported on an upstanding porous member 11b, which is either fixed to, or forms a part of the base of, a vessel 11 for containing water. As shown in Fig. 2, the upstanding support is integral with the bowl which is made of earthenware, glazed on its outer surface, and is provided with a coating 13 of porous material to enhance the porous nature of the support. Alternatively, the porous, central support may be a separate piece fixed to the base of the bowl, which may then be made of a non-porous material. In either case, a constant supply of water to the plant within the pot 12 is ensured.
Patent GB-851616-A (GB)
Title: Internal combustion engine crankcase
Inventor: BAXTER ALAN SYDNEY
IPC: F02F7/00
Filed: 1958-01-31
Abstract: 851,616. Engine construction; crank-chambers. RUSTON & HORNSBY Ltd. Jan. 15, 1959 [Jan. 31, 1958], No. 3236/58. Class 7(2). A major crank-case portion 11A carrying a cylinder 14 has an inclined lower face 12 with crank-shaft and cam-shaft recesses 15, 16 and is connectible by screws 18 either with a minor crank-case portion lie and a sump 19 to form a single cylinder engine unit or with a like major crank-case portion and cylinder to form an engine unit having cylinders in 45 degrees Vee or horizontally opposed relation. A plurality of like engine units sharing the same crank-shaft may be held together by nutted rods 17.
Patent GB-620949-A (GB)
Title: Improvements in the manufacture of insulated electric conductors
IPC: H01B3/44
Filed: 1947-02-04
Abstract: 620,949. Cables. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and EVANS, B. B. Feb. 4, 1947, No. 3269. [Class 36] An electric conductor insulated with a layer of polyethylene has a coating of wax-resisting material applied to the polyethylene, then a protective braid is applied which is impregnated with molten wax. The wax-resisting material may be cellulose acetate or regenerated cellulose applied in the form of a tape. Polyvinyl chloride or other synthetic materials having similar wax-resisting properties may also be used, either as a tape, a coating, or a dispersion.
Patent GB-636438-A (GB)
Title: Improvements in devices for protecting apparatus from the effects of external vibration
IPC: G01G23/00
Filed: 1948-02-04
Abstract: 636,438. Vibration-dampers. GREY, R. B. Feb. 4, 1948, No. 3292. [Class 108 (iii)] A device for protecting apparatus from the effects of external vibration comprises a table for supporting the apparatus isolated by interposed springs and a heavy weight in the form of a pendulum depending from the table and suitably housed to prevent disturbance thereof. In the arrangement shown, a table A for supporting a balance B is supported from a bed D by three equiangularlyspaced springs F bearing at their upper ends on the lower side of the table and bearing at their lower ends on plates G carried by adjustable bolts H from the bed D. A heavy cylindrical weight N is secured to the lower side of the table and is surrounded by a tubular housing E integral with the bed D.
Patent GB-818730-A (GB)
Title: Improvements relating to heat-exchangers
Inventor: GREAVES BRIAN HAROLD
IPC: F28D21/00
Filed: 1957-02-01
Abstract: 818,730. Fluid heaters. GREAVES & SON Ltd., A. E. Nov. 21, 1957 [Feb. 1, 1957], No. 3495/57. Classes 64(1) and 64(3) In apparatus for heating air or other fluid, hot gases from a central chamber 2 flow from an outlet at one end thereof through a plurality of exhaust flues 3 which are spaced from the chamber wall to provide a passage 6 for the air or other fluid which is heated in flowing transversely over the central chamber between the latter and the exhaust flues, the heating gases flowing back and forth in two passes through the flues 3 to an exhaust outlet 28 adjacent the gas outlet end of the central chamber 2. In the air heater shown, the gas passes in the exhaust flues are provided by partitions 24 (Fig. 7) and an outer casing 12 surrounds and is spaced from the heat exchanger so that some of the air is heated in flowing between the flues and the outer casing. The central chamber 2 may, as shown, comprise a combustion chamber having a liquid or gas fired burner 22 at one end, combustion air being tapped off through a duct 24 from the stream of air passing to the heat exchanger. Alternatively the heat source may comprise exhaust gases from an external furnace or combustion chamber supplying two or more of the heat exchangers mounted thereon (Figs. 8 and 9, not shown). The apparatus may be arranged with the axis of the heat exchanger disposed horizontally (as shown) or vertically. Support for the rear ends of the flues is provided by a plate 23 which closes the rear ends of the flues 7 and which is slidable on the outer surface of the central chamber 2 to allow for relative thermal expansion between these components and similarly a sliding or resilient joint is provided where the exhaust outlet 28 passes through the front wall 13a of the outer casing. Specification 773,155 is referred to.
Patent GB-268496-A (GB)
Title: Improvements in means to obviate threading films through kinematograph apparatus
IPC: G03B1/42
Filed: 1926-02-09
Abstract: 268,496. Bland, H. B. Feb. 9, 1926. No Patent granted (Sealing fee not paid). Kinematograph apparatus. - A perforated flexible lead 1 is threaded through a projector, and is long enough to form the usual loops 2, 3 and extend beyond the sprockets 5, 7. Both spools 11, 12 have short leads 17. 18 secured to their cores, and the tail end of the film on the spool 11 has a lead similar to the lead 1 connected to it and to the lead 17. When projection is to be effected, the leading end of the film is secured to one end of the lead 1, and the other end of the lead is connected to the lead 18. At the conclusion of the projection, the lead at the tail end of the film replaces the lead 1. and remains in the projector ready for use when projecting the next film. A third flexible lead is connected between the tail end of the film and the lead secured to the spool core when the film is to be rewound. The film and leads may be connected by means of flexible film or other loops 9, Fig. 2, secured to the leads and engaged by U- shaped hooks 10 secured to the film. Alternatively, slots 23, 24, Fig. 5, formed in the lead and corresponding slots 27, 28 formed in the film may have a tongue 25 threaded through them to effect connection, the tongue being fastened to the film at 26. According to the Provisional Specification, the leads secured to the spool cores may be of canvas or spring steel and be equal in width to the film but unperforated.
Patent GB-466706-A (GB)
Title: Improvements in slippers and other footwear and in the manufacture thereof
IPC: A43B3/10
Filed: 1937-02-06
Abstract: 466,706. Making boots and shoes. VERO & SONS, Ltd., J. L., and VERO, D. J. Feb. 6, 1937, No. 3609. [Class 17 (ii)] Slippers, particularly bedroom slippers, and other shoes with leather soles and high heels are made by lasting the upper inside out and securing it to a flap 3 formed by channelling a solid leather sole 1 near its edge, as shown, and the shoe is then turned. The heel end of the upper is drawn into slots 4 cut adjacent the heel portion of the sole and laid over and secured to the sole, for example by nailing. A high heel is then attached in usual manner. An inner pad provided with a steel shank stiffener may be applied to the inner surface of the heel portion of the sole, being secured by the nails which secure the overlasted margin of the heel portion of the upper. A lining of swansdown or lamb's-wool may be provided to the upper before it is attached to the sole.
Patent GB-462452-A (GB)
Title: Improvements in and relating to the ventilation of closed spaces
IPC: E03F5/08
Filed: 1935-08-06
Abstract: 462,452. Filtering air. STAUBER, J. Aug. 6, 1935, No. 3620/37. Divided out of and addition to 460,901, [Group X]. [Class 8 (ii)] [Also in Group X] Air for use in gas-protected rooms is drawn by suction through the soil which acts as a filter and is forced into the rooms. A pit 1 is excavated from the ground, and the sides are lined with wire netting 3, or with bricks or concrete provided with air holes. A layer of gravel 4 is arranged below and outside the side walls. A fan 7 driven by a motor 6 draws air from the pit and forces it through a delivery pipe 9 to the enclosure. The cover of the pit is provided with a window 10.
Patent GB-305479-A (GB)
IPC: H02K16/00
Filed: 1929-02-04
Abstract: 305,479. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Feb. 3, 1928, [Convention date]. Driving - arrangements; collecting-rings; dynamos, cooling; mounting neutralpoint earthing resistance on rotor.-A plant for generating electric current comprises a generator having its inducing and induced parts' driven in opposite directions and respectively coupled to a group of at least three cylinders of a single internal combustion engine, thus giving the degree of uniformity in turning movement required for parallel running. In the arrangement shown in Fig. 1, the induced part 2 surrounds the inducing part 1 and both overhang heavy bearings 3, 4 between which and the two axially separated groups of cylinders I, II of the engine the slip-rings 5, 6 are arranged, but the two members 1, 2 may face each other instead of being concentric. The machine is aircooled by forced draught through a casing 7 and the cooling medium may be the scavenging air where two-stroke cycle engines are employed. The slip-rings may be carried on insulators on the spokes of the two generator elements to cooperate with brushes the holders of which are carried on fixed rings insulated from the casing. The Specification as open to inspection under Sect. 91 (3) (a) describes also the following matters. The scavenging air may be drawn from the scavenging air compressor or may be supplied by the generator itself. In the case of a 3-phase machine with earthed neutral, the neutral point may be brought out to a ring shrunk on the hub of the induced generator member with a thin intervening layer of insulation. An earthing resistance for the neutral point may be also mounted to rotate with this member, the earth connection being obtained through a fourth slipring. Also an arrangement of slip-rings as shown in Fig. 3 (Cancelled) may be used wherein the rings 22, shrunk on the shaft with an intervening layer of insulation 21, are separated by insulating collars 23 with ribs for increasing the leakage path between the rings. The neutral-point ring 22<1> is lightly insulated from the shaft and the whole construction is enclosed in a casing 26, made of or lined with insulating material to prevent arcing and preferably having partitions 28 entering between the ribs on the collars 23. The slip-rings may be swept by air which is forced through the casing 26 to prevent dust from collecting in the casing and bearing oil from percolating into it. This subject-matter does not appear in the Specification as accepted.
Patent GB-122533-A (GB)
Title: Improvements in Methods of Making Abrasive Articles.
Filed: 1918-03-02
Abstract: 122,533. Carborundum Co., (Urtel, H.). March 2, 1918. Stone, artificial.-Abrasive wheels and other articles are moulded from a mixture of aloxite or other aluminous abrasive with a binder containing silicate of soda and zinc oxide. The articles, after drying, are heated in a kiln to a temperature sufficient to fuse the silicate of soda and cause the formation of an insoluble double silicate of sodium and zinc. The firing temperature is preferably between 850‹ and 1100‹ C. Flint, clay, or other substances may be added to the mixture.
Patent GB-428928-A (GB)
Title: Improved gas generating means for use with internal combustion engines
IPC: C10J3/00
Filed: 1935-02-05
Abstract: 428,928. Gas producers; producer plant. LANGE, R. S., 182, Tay Street, Invercargill, New Zealand. Feb. 5, 1935, No. 3759. [Classes 51 (i) and 55 (i)] A gas producer adapted for use with internal-combustion engines has its fuel bed divided into two parts A, B by a partition 21, each part having steam or hot water supply pipes 45 and air admission inlets 35 adjacent the top of a grate well 11 common to both parts, the gas being withdrawn from below the grate 14 into pipes 26 leading through cooler 55 and purifier 60 to an air mixing chamber 62 on the engine. The grate 14 is suspended from a rod 15, and is rotated by a crank handle 17, the ashes collecting in a pit 13, divided by a partition plate 13A. Gas is withdrawn by engine suction from each zone in turn through pipes 26, valves 28 on which are alternately opened and closed by a solenoid 30. Air is admitted through pipes 34 having valves 38 operated by a solenoid 42 so synchronized that if the part A is under suction from the engine, air is admitted through an opening 39 while part B is supplied with air under pressure from a pump 37, the air supplies to these parts being periodically changed over. By this means, during the time each part or zone is cut off from suction and the atmosphere, the fire in such zone is kept bright by forced draught, an uninterrupted full gas supply being maintained. Water to the perforated pipes 45 is heated in jackets 51 surrounding the outlet pipes 26, and is admitted under control of a needle valve actuated by pressure from the engine induction pipe 62 through a pipe 49 and cylinder 50, so that water is admitted only when the engine is running. A pump 71 creates a draught through the gas outlet pipes 26 for starting purposes. Instead of a single producer divided into two zones, separate producers may be operated in a similar manner.
Patent GB-1376441-A (GB)
Title: Cinematographic film
IPC: G03C1/765
Filed: 1972-02-04
Abstract: 1376441 Cinematographic film KODAK Ltd 4 Feb 1972 [4 Feb 1971] 3926/71 Heading G2E A 35 mm. cine film has fracture-initiating sites in the form of slits extending transversely of the film between every fourth and fifth sprocket hole in each of the two lines of such holes. The film may be based on polyethylene terephthalate or similar polymeric material or cellulose triacetate, the number of fracture-initiating sites per line of sprocket holes depends on the material used.
Patent GB-498562-A (GB)
Title: Improvements in electric relays operated by changes in humidity
IPC: F24F3/14
Filed: 1938-02-08
Abstract: 498,562. Actuation of switches. STANDARD TELEPHONES & CABLES, Ltd. Feb. 8, 1938, No. 3928. Convention date, Feb. 8, 1937. [Class 38 (v)] The variation in the length of a hygrometric material 4 due to changes in humidity, operates a switch with a snap-action. Levers 1 and 7 are mounted on pivot 2 and urged together by spring-pressed levers 9 and 10, and pivoted at 6 to a short arm of lever 1 is a member 5 to which is connected a tress of hair 4 which is anchored at the other end to an adjustable support with provision for setting. Contraction of the hair 4 with decrease in humidity rotates lever 1 against springs 13 and 11, lever 7 being held by a projection on crank 15 engaging a finger 23 thereon until arm 26 on lever 1 engages and the lever 15 to free lever 7 which is moved by spring 11 to carry boss 8 from its engagement with spring contacts 27 which then open with a snap-action. Increase in humidity lengthens the hair 4 and allows spring 13 to contract and close the contacts 27 with a similar snap-action.
Patent GB-427837-A (GB)
Title: Improvements in or relating to stays for casement windows
IPC: E05C17/18
Filed: 1934-02-07
Abstract: 427,837. Stays. THOMSON, R. S., Darvel, St. Annes Road, Headingley, Leeds. Feb. 7, 1934, No. 3972. [Class 65 (i)] In a stay of the kind having holes to be engaged with a fixed pin which has retaining or locking means adapted to be brought into an operative position to prevent removal of the stay from the pin, spring means are provided which have to be overcome in the passage of the stay on to the pin and which then either move the locking means automatically into the operative position or press the stay against the locking means when the latter has been moved into the operative position. Fig. 6 shows a pin 5 having a transverse box containing a spring-pressed bevelled plunger 8 which is pressed in when the stay is pressed down on the pin and prevents removal of the stay until the plunger is pressed in by hand ; the spring-retaining plug 14 may be replaced by another locking plunger similar to 8. In Fig. 3 the upper end of the pin 5 is forked and carries a pivoted member 8 which allows the passage of the stay in the position shown but can be turned into the horizontal position to project on either side of the pin and prevent passage of the stay ; a spring 10, surrounding the pin, is compressed when the stay is pressed on the peg, the locking member 8 is then turned to the operative position, and the spring presses the stay against the locking member to prevent accidental movement of the latter to the releasing position shown.
Patent GB-931112-A (GB)
Title: Improvements in and relating to heat exchange recuperator units
IPC: F28D7/12
Filed: 1961-02-02
Abstract: 931,112. Heat recuperators. BROWN FINTUBE CO. Feb. 2, 1961 [Feb. 8, 1960], No. 3972/61. Addition to 931,111. Class 64 (3). The recuperator of the parent invention includes heat shields for the recuperator tubes exposed to the direct blast of the hottest gas. In the improvement of the present invention the heat shields are made of heat-resistant material having a coefficient of expansion different from that of the recuperator tubes, being spaced from the tube by means which permit of relative expansion to avoid thermal stresses. The support means may for example comprise at the centre or at one, end of the tube a fixed bracket 67 (Fig. 4), in which the shield plate 66 rests or is fixed. The free end or ends of the shield plate are slidable in a further bracket or brackets 72. The shield plate may as shown in Fig. 18, comprise segments 115, 116 of ceramic material, which are slotted to be slidable on circular support members 117 spaced along and fixed to the tube 51. In the lowest segment 116 the slot extends only part way through so that the unslotted portion acts as a support for the remaining segments. The circular form of the support members 117 enables individual segments to be removed when required (see Fig. 20, not shown).