baber/WOPTO huggingface dataset:
Patent GB-296282-A (GB)
Title: Process and apparatus for annealing sheet glass manufactured intermittently by meansof sheet glass forming machines
IPC: C03B25/08
Filed: 1928-04-12
Abstract: 296,282. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St.-Gobain, Chauny et Cirey. Feb. 18, 1928, [Convention date]. Charging. - In the manufacture of glass plates or sheets by rolling- apparatus which is fed intermittently with molten glass, the sheets from a single rolling-machine A are fed in turn to two or more leers K through which the sheets move at a speed suitable for annealing. The sheets, as they are formed by the machine A, are received on a carriage B, mounted on wheels D, which conveys the sheets transversely to the mouth of the leer. The surface of the carriage is formed as a roller conveyer E, and the rollers are driven at a speed which can be varied, as described in Specification 279,860. The rollers as they receive a sheet are driven at a pheripheral speed equal to the speed of rolling, but as soon as the sheet is wholly on the table, the speed is reduced so that the sheet is fed into the leer at the slower speed at which it travels through the leer. A hood or muffle H covers part of the table in order to prevent the sheet from being chilled unduly before it passes to the leer. Two carriages may be used to receive sheets in turn from the rolling machine.
Patent GB-187250-A (GB)
Title: Improvements in bake ovens
IPC: A21B1/48
Filed: 1921-04-13
Abstract: 187,250. Livingston, J. M. April 13,. 1921. Bakers' ovens.-In an oven, heated partly by flues in the walls and partly by circulation of combustion products within the oven, auxiliary flues are provided to supply additional local heat where desired. The oven shown has double walls 1, 2, the space between which is filled with heatinsulating material and is heated by gas burners 28 arranged at each end, the hot gases passing through flues 6, beneath the sole 24, to the transverse flues 7, thence up the vertical flues 8 to a chamber from which they pass into the baking- chamber 32, finally escaping through the stacks 33. Auxiliary flues 9, 10, heated by burners 28<A>, are arranged at each side of the flues 6, the hot gases passing through vertical flues 11 - - 16 to an upper flue 21 from which a portion passes downwardly through holes into the baking-chamber and the remainder escapes to the stack 33. The gas is supplied through a main valve 27 operated by a thermostat 29, and by suitable manipulation of the valves on the burners 28, 28<A>, higher local temperatures may be obtained where desired. The oven sole 24, which may be graduated in thickness, may be formed of materials of varying heat-conductivity arranged so that a greater or less heat is obtained at any desired part of the oven. The materials to be baked are conveyed through the baking chamber on cars which travel on tracks 22, 23 and return on tracks 41, 42 in the lower part of the oven.
Patent GB-1183923-A (GB)
Title: Electric Eye Camera
Inventor: AOKI KOICHI
IPC: G03B7/12
Filed: 1967-03-08
Abstract: 1,183,923. Automatic exposure control. MINOLTA CAMERA K.K. March 8, 1967, No.10851/67. Heading G2A. In an automatic exposure control camera having an ammeter pointer which indicates the received brightness, the pointer is locked by means operated by the camera release when in a position indicating that flash is not required, and when in a position indicating that flash is required the said means alters the aperture and shutter speed setting, and closes a flash circuit. As shown, the pointer 3a indicating the light received by the meter moves in an arcuate path between a fixed plate 7 and a vertically movable plate 8. Plate 8 is attached by a spring 25 to an arm 2a of the camera release 2, so that when the release is pressed downwards, plate 8 also moves downwards to clamp pointer 3a. Release 2 also has a lower arm 2b, and as it moves downwards arm 2b disengages from a pin 30 of a lever 5. Lever 5 can then pivot anti-clockwise under the action of a spring 31, and a lug 29 at its other end, previously restraining another lever 6, now allows lever 6 also to pivot anti-clockwise under the action of a spring 28. Lever 6 has a sawtoothed end 27 which engages pointer 3a. Thus the angle through which lever 6, and hence lever 5, can pivot, is determined by the position of the pointer. One end of lever 5 has a pin 30 engaging in a slot 33 in a pair of diaphragm blades 4. Thus the diaphragm aperture is also controlled by the position of pointer 3a. Sliding plate 8 also engages, via a pin 8a and slot 40, a lever 9 pivoted to a plate 12 which can be caused to slide vertically by means of a pin and slot engagement with a knob 10. Movement of plate 12, via a linkage 15, 16a, controls the focusing movement of the lens 16. Plate 8 is also linked, via a lever 18, to a shutter speed control ring 17. When the scene brightness, is indicated by pointer 3a, is adequate without flash, the mecahnism operates as described above. The shutter is set to a fixed speed (e.g. 1/100 sec), and depressing release 2 first sets the aperture, as described, and then releases the shutter. When the scene brightness is inadequate, the pointer 3a is over to the extreme right Fig. 5, so that it is no longer in the path of plate 8, which can therefore descend further than before, so closing a switch 19 to light a lamp 67 which indicates that the scene brightness is inadequate, the flash circuit then being closed by further depression of the shutter release. At the same time plate 8 pivots lever 18 to set the shutter speed for flash exposure (e.g. 1/30 sec), and lever 9 is pivoted downwards to set the aperture corresponding to the object distance, as determined by the guide number, since it is linked to the focusing knob 10. Also, as plate 8 moves completely downwards, an upward extension 37 disengages from the flash cube socket 13, allowing it to be rotated by suitable mechanism.
Patent GB-1533597-A (GB)
Title: Frequency-comparing devices
IPC: H03L7/085
Filed: 1976-03-18
Abstract: 1533597 Phase, frequency comparators PLESSEY CO Ltd 16 March 1977 [18 March 1976] 10861/76 Heading H3A An arrangement for selectively providing an output on one of two lines Q 1 , Q 3  in dependence upon the phase lead or lag relationship between two signals I 1 , I 2  of the same frequency or upon the relative frequency difference between two signals I 1 , I 2  comprises bistable flip-flops B 1 , B 3  respectively settable by one of I 1 , I 2  to provide outputs on Q 1 , Q 3 , a further bistable flip-flop B 2  settable via an AND gate C in reponse to the simultaneous occurrence of I 1 , I 2  to provide an output which resets B 1 , B 3 ; the flip-flop B 2  itself is reset via a NOR gate D when both inputs I 1 , I 2  are simultaneously absent. The width of the pulses on Q 1  or Q 3  is related to the phase difference and for phase equality, no pulses appear at Q 1  or Q 3 . In effecting frequency comparison, the output on one line remains low while the output on the other line, in the form of pulses, when integrated will undulate in amplitude in accordance with the frequency difference. The measured phase or frequency difference may be observed on a differential voltmeter (Fig. 2, not shown) or used for retro-active control of a motor (Fig. 3, not shown).
Patent GB-238159-A (GB)
Title: An improved apparatus for producing and delivering a mixture to an internal combustion engine
IPC: F02M21/00
Filed: 1924-02-05
Abstract: 238,159. White, A. E., (Stewart-Warner Speedometer Corporation). Feb. 5, 1924. Vaporizers, external. -Rich mixture from a carburettor, which may be situated at a point remote from the engine, is drawn at high speed through a long conduit 6, Fig. 5, of small crosssection, surrounded for a portion of its length by an exhaust jacket 10, and provided with outlet branches 6<b>, Fig. 2, which discharge into branches 13 of an intake manifold 12 provided with a suction-actuated cold-air inlet valve 14; the exhaust-heated portion of the conduit 6 comprises an outer tube 6<x> containing an inner sleeve 6e, the heavier particles of fuel, which tend to accumulate in the outer layer of mixture, passing through and being vaporized in the annular space 6<d> between the tubes and sleeve, whilst the lighter portion of the mixture passes through the comparatively cool sleeve 6<e>. The branches 13 of the intake manifold are each provided with a choice tube 15 adjacent the outlet of the branch 6<b> and with a throttle valve 15<a>, and may each supply two cylinders.
Patent GB-845718-A (GB)
Title: Improvements in or relating to crop thinners
IPC: A01B41/04
Filed: 1957-04-03
Abstract: 845,718. Agricultural implements. BRITISH SUGAR CORPORATION Ltd. Feb. 28, 1958 [April 3, 1957], No. 10958/57. Class 6(1). A crop thinner comprises a pair of tine heads 55, 56 mounted for rotation about a longitudinal axis and means operable to vary the axial distance between the two heads. As shown the heads are mounted on a hollow shaft 57. The head 56 carries a housing 61 for a spring 62 which urges the head 56 towards the head 55. A rod 63 is connected to the housing 61 and to a lever 66 which is moved by a Bowden cable 69 to move the head 56 against the spring 62. In a modification one head is fixed to a shaft and the other head is adjustably held in the shaft by a screw and the axial distance is adjusted by releasing the screw and sliding the head to the desired axial position.
Patent GB-613006-A (GB)
Title: Improvements in or relating to electro-hydraulic control systems
IPC: G05D1/00
Filed: 1943-07-07
Abstract: 613,006. Valves; fluid-pressure servomotorcontrol systems. SPERRY GYROSCOPE CO., Inc. July 7, 1943, No. 11071. Convention date, July 8, 1942. [Class 135] In a servomotor control unit of the kind in which control valves 36, 37, Fig. 4, are pivotally connected to a rocker 33, Fig. 1, the rocker constitutes or is secured, e.g. by a shaft 27, to the three-legged armature 25 of a differential electromagnetic controller, the outer legs being provided with windings 31, 32. The valves may have rigid or flexible stems and are employed in a hydraulic control system of the kind described in Specification 538,526, comprising a double-acting, threegear pump 52, 53, 54, and a servomotor 58 connected by rack and pinion gear to a pulley 62 carrying a cable 63 for operating the object to be controlled. The pump withdraws liquid from the sump through the pipes 50, 50<1>, Fig. 1, and discharges it through pipes 55, 55<1> to the ends of the servomotor, the operation of which is determined by the current supplied to the windings 31, 32. Thus, assuming the windings to be activated to move the armature 25, and therefore the rocker 33, in a clockwise direction, this will result in the closing of the valve 37 on its seat 45 and the opening of the valve 36, thus increasing the pressure on the right side of the servomotor piston and moving it to the left, the displaced liquid passing through the pipe 59 to the opening 56 in the base of the sump and thence past the valve 36 and through the ports 47 in the valve housing 46 into the sump. A combined pump and valve housing may be built up of plates 68 ... 71, Fig. 10, the outer pump gears rotating on hollow shafts which house the valves 36, 37. Specification 612,897, [Group XXXVIII], also is referred to.
Patent GB-582173-A (GB)
Title: Improvements in or relating to electron discharge devices employing hollow resonators
IPC: H01J23/16
Filed: 1942-08-11
Abstract: 582,173. Velocity - modulated tubes. PEARCE, A. F., and BARFORD, N. C. Aug. 11, 1942, No. 11257. [Class 39 (i)] In a velocity modulation discharge device of the kind in which an electron beam passes through an oscillatory field set up between a pair of large grids disposed across the apertures of a hollow resonator which encircles the beam, the spacing between the grids and/or the sizes of the spaces in one or both grids are so adjusted that the energy transfer between the beam and the resonator is rendered substantially uniform over the cross-section of the beam. As shown in Fig. 1, the grids 5, 6 of a toroidal resonator 4 are outwardly dished so that the transit time of electrons passing between the centres of the grids is increased in relation to the transit time of electrons passing near the edges of the grids. A similar effect may be obtained with flat grids by reducing the sizes of the meshes at the outer portion of the grid, as shown in Fig. 2. A grid consisting of a number of thin concentric conducting rings, connected together by radial ribs may have the spacing between the rings graded, as shown in Fig. 3.
Patent GB-625253-A (GB)
Title: Apparatus for tilling and cultivating
IPC: E02F3/06
Filed: 1945-05-04
Abstract: 625,253. Cultivating apparatus. BURLING, W. E. May 4, 1945, No. 11315. [Class 6(i)] A motor-driven cultivator machine consists of a frame 1 mounted on endless track members 4 driven from power unit 9. The transmission gearing drives also the rotating shaft 12 which carries a spirally-bladed tool 14 rotating within a trough-shaped share 15 which diverts the earth to one side. The implement is guided by handles on projecting arms 2.
Patent GB-141521-A (GB)
Title: An improved collapsible cradle for use with a child's folding carriage or wheeling chair
IPC: B62B7/08
Filed: 1919-05-06
Abstract: 141,521. Scorey, A. T., Moore, J. M., and Dowty, E. J. May 6, 1919. Perambulators; folding vehicles.-A child's folding carriage, such as that described in Specification 12074/15, is adapted to be converted into a cot for sleeping purposes by supporting a bed f of canvas &c., between the longer frame members d and extensions b provided on the shorter frame members a. The extensions b may be recessed or undercut at j to allow the cross-stays i to fold.
Patent GB-479255-A (GB)
Title: Improvements in and relating to processes for working-up aqueous formaldehyde solutions
IPC: C07C47/04
Filed: 1937-04-20
Abstract: Aqueous formaldehyde solutions are concentrated by distilling under a pressure above atmospheric with the use of a dephlegmator column in such a way that the proportion of reflux to distillate is greater than 2 and preferably between 4 and 8.  A solution containing in addition one or more volatile substances, such as methyl alcohol, may be used.
Patent GB-610669-A (GB)
Title: Improvements relating to valve mechanism of internal combustion engines
IPC: F01L1/46
Filed: 1946-04-13
Abstract: 610,669. Torsion springs. SALTER & CO., Ltd., G., and BACHE, J. K. April 13, 1946, No. 11391. [Class 108 (iii)] [Also in Group XXVII] A valve spring for an internal-combustion engine comprises a laminated torsion bar composed of a plurality of superimposed spring leaves 5, fixed at one end and carrying at the other end a rocker-arm 7 mounted on a pivot 12. In Fig. 3 the laminations 5 are separated by distance pieces 14, fixed in recesses 9, 15, by cover plates 10, 16. The laminations 5 may be in contact without the distance pieces 14. In Fig. 7 the ends of the bar are held in conical recesses 20 by wedges 21 forced in by cover plates 22.
Patent GB-394113-A (GB)
Title: An improved exchangeable and interchangeable heel tap for boots and shoes
IPC: A43B21/39
Filed: 1932-04-21
Abstract: 394,113. Boot &c. protectors. HASSEL, F., 46, Charlottenstrasse, Chemnitz, and MœLLER & FRANKE AKT.- GES., Limbach, near Chemnitz, Germany. April 21, 1932, No. 11452. [Class 17 (iii).] A heel tap a stiffened by claw-like prongs i and releasably attached to a boot or shoe heel by means of a grooved slide b on the heel tap a engaging a tongue g of a plate c, on the shoe heel, is characterised in that the inwardly directed margin d of the free wall of the groove f bears tightly against a shoulder e at the base of the tongue g, while the other parts of the tongue g, i.e. the outer edges and lateral surfaces, are free to move up and down slightly, as the breadth of the tongue g is less than the breadth of the outer wall of the groove f. The plate c is provided with apertures j, n, the aperture n being adapted for the preliminary' accommodation of a fixing lug k on the slide b, which subsequently snaps into the aperture j when the fitting edges come into contact with each other. The metal parts of the slide b and the plate c are insulated from one another by a thin non-metallic plate p recessed into the plate c, and by a thin indiarubber coating on the slide b, and the plate c is stiffened by a thin metal plate u inserted between it and the non- metallic plate p. The lug k is released from its aperture j, when it is desired to detach the heel tap a, by means of a releasing angle w, the bevelled edge z of which is forced in between the slide b and the plate c.
Patent GB-754261-A (GB)
Title: Dual focus cathode-ray tubes
IPC: H01J31/20
Filed: 1954-04-21
Abstract: 754,261. Colour television tubes. RADIO CORPORATION OF AMERICA. April 21, 1954 [April 30, 1953], No. 11553/54. Class 39 (1). A cathode-ray tube with a plurality of electron beams, a patterned apertured member and a viewing screen, e.g. a colour television tube, has individual non-circular apertures in diaphragms placed in the beams before deflection designed to prevent overlap and dilution of the separate beams on the viewing screen. In a multi-line colour tube 19 with a deflection grill of fine parallel wires, the diaphragms b, f, g are located within the first anodes of the respective guns and are of truncated spherical shape, Fig. 3, with the long dimension parallel to the colour lines. The portions of the beam giving overlap on the viewing screen are cut off at the sides a, a1 of the diaphragms. The beams may each span three or more grill wires w1, w2, w3, as shown in Fig. 9. When the apertured screen is of the dot-type with the dots arranged on a hexagonal pattern the diaphragm apertures 57 are of hexagonal shape, Fig. 11. The three guns may be in delta formation or in line.
Patent GB-1419137-A (GB)
Title: Signal transmission systems
Inventor: ISHEDEN L R
IPC: G08B26/00
Filed: 1973-03-09
Abstract: 1419137 Selective signalling TELEFONAKTIEBOLAGET L M ERICSSON 9 March 1973 [15 March 1972] 11603/73 Heading G4H In a transmission system, a plurality of local stations are connected in series with each other in a first line which connects them to a central station, and in parallel to each other to a second line which connects them to the central station, pulses applied by the central station to either end of the second line selecting the local stations in turn by means of stepping devices (counters) therein to send first messages to the central station over the first line, a condition (e.g. a manually-set alarm condition) in a local station causing transmission of a second message to the central station over the first line. The first messages are text messages (including the local station address) and non- reception of one causes the central station to apply the pulses mentioned to the other end of the second line. This enables localization of the fault. The second messages are alarm messages which identify the local station and the type of alarm, and are sent repeatedly at intervals until the local station is turned off. The first line uses D.C., and the second uses A.C. pulses, and both lines are connected to the central station at both ends.
Patent GB-966792-A (GB)
Title: Improvements relating to refractories
Inventor: SHEPHERD ERIC JAMES
IPC: C04B28/24
Filed: 1961-03-30
Abstract: A refractory is produced by employing a slurry comprising a refractory material and an aqueous silica sol, the slurry is gelled when required by the reaction of an acidic and a basic substance, one of which is present in the slurry while the other is employed as a vapour to which the slurry is exposed.  The process is used in the production of moulds. The acidic substances employed in the slurry can be a water soluble inorganic or organic acid, while those employed as the vapour can be carbon dioxide, hydrogen halides, sulphur dioxide and oxides of nitrogen.  The basic substance used is preferably ammonia either in the slurry or as a vapour, other bases which may be used are ethylamine, diethylamine, piperidine, morphodine, diethanolamine and cyclohexamine.  The acidic or basic substance is added to the silica gel before the addition of the refractory filler.  A slurry of suitable viscosity can contain between 30 and 90 parts of the silica sol per 100 parts by weight of the refractory filler.  The aqueous silica sol contains 15-50% by weight of silica, a typical aqueous silica sol has an SiO2 : M2O weight ratio of between 40 : 1 and 500 : 1.  Wetting agents may be added to the slurry.  The slurry is gelled at room temperature, the direction of the exposure to the relevant vapour being not more than five minutes.  Part of the slurry used in forming the refractory can be gelled or set by conventional techniques; for example the inner surface of a mould made in the conventional way can be coated with a slurry that is gelled by the process of the invention.
Patent GB-921975-A (GB)
Title: Process for coloring polypropylene fibres and the resulting products
IPC: D06P3/79
Filed: 1961-03-30
Abstract: Polypropylene fibres are dyed from an aqueous acid bath containing a mordant dyestuff and a water soluble salt of a metal, e.g. chromium, cobalt or nickel, capable of forming a metal complex with the dyestuff.  The bath is acidified with a mineral acid, such as sulphuric acid, or with an organic acid, such as formic, acetic, propionic or butyric acid.  The water-soluble salt is preferably a chromium salt such as sodium, potassium, ammonium, calcium or magnesium chromate, or chromium fluoride, chloride, formate, acetate or propionate.  The bath preferably also contains a water-miscible organic solvent such as benzyl alcohol, cyclohexanol, propyl alcohol, butyl alcohol, furfuryl alcohol, isophorone, acetophenone, ethylene glycol, diphenyl ether, ethylene glycol monobutyl- or monophenyl-ether, furfural, paraldehyde and n-butyl acetate.  Dyeing may be effected at temperatures about or above 212 DEG F., or alternatively the fibres may be padded with the aqueous bath and then steamed.  Numerous examples are given in which the mordant dyestuffs employed are of the azo, anthraquinone and triphenylmethane series.
Patent GB-586874-A (GB)
Title: Improvements in the manufacture of heat-resistant and durable leathers and tanning agents therefor
IPC: C14C3/02
Filed: 1944-06-21
Abstract: 586,874. Tanning liquors. WALKER & SONS, Ltd., W., BURTON, D., HARRISON, J. M., HAUSMANN, F., and MONK, W. H. June 21, 1944, No. 11762. [Class 76] Tanning liquors for the production of heat resistant leather are prepared by reducing an acid solution containing chromic acid with an excess of a vegetable tannin extract in liquid form at an elevated temperature, e.g., 85‹C. Solutions of sodium and potassium dichromates acidified with organic or inorganic acids may be used and the vegetable tannin is preferably of the depside or diphenylmethylolid type, e.g., myrabolans. A further treatment with a vegetable tannin extract may precede or follow tanning with the liquors prepared as above, and the finished leather may be treated with synthetic resins as described in Specification 580,121. Specification 131,772, [Class 76], is referred to in the Provisional Specification.