baber/WOPTO huggingface dataset:
Patent GB-284872-A (GB)
Title: Improvements in or relating to bucket elevators or the like
IPC: B65G17/06
Filed: 1927-02-24
Abstract: 284,872. Johnson, E. L. Feb. 24, 1927. Articulated receptacles; driving-gear.-In endless elevators composed of a chain of articulated buckets, the ends of the base a of each bucket are provided with hinge lugs b, c which are complementary in form and the hinge pin d carries a roller or rollers e which run on guides. An open rectangular box-like fitting q fixed to the base a carries a wedge-shaped block h, or a block having longitudinal V-shaped grooves, adapted to engage a peripheral groove, or circumferential rib, respectively, on the driving pulley.
Patent GB-247745-A (GB)
Title: Improvements in head lamps suitable for use on motor cars
IPC: H01K1/32
Filed: 1925-02-25
Abstract: 247,745. Herbert, G. Feb. 25, 1925. Bulbs. - The light proceeding from the bulb of a vehicle lamp is confined to a comparatively narrow substantially segmental band by rendering opaque the end portions a and a mid portion b of the bulb. The opaque portion may be formed by applying internally or externally a heat-proof or other reflecting surface. According to the Provisional Specification, light is emitted from the upper portion of a bulb either by rendering opaque the lower portion of a verlically arranged bulb, or by rendering opaque the bottom and end portions of a horizontally arranged bulb, the bottom opaque portion near the mid portion of the bulb preferably not extending quite as far as the central plane of the bulb.
Patent GB-490909-A (GB)
Title: Improvements in or relating to photographic copying devices
IPC: G03B27/22
Filed: 1938-02-19
Abstract: 490,909. Photographic copying apparatus. SCHMECK, P. Feb. 19, 1938, No. 5262. Convention date, Feb. 27, 1937. [Class 98 (ii)] The copying material is passed by an endless conveying band 2 over the surface of a glass cylinder 24 behind which is a source of light. The band 2 is driven by a motor through cones 4, 5 which are adjustable to vary the exposure, pulleys 7, 8, and gearing 11, 12, 13. The frame 17, carrying rollers 14, 15, 1S, table 18 and paper box 9 is displaceable as a unit away from the cylinder 24 by rotating a pinion 22 engaging a rack 20 which projects from the main frame 1 and supports the unit. The glass cylinder is thereby accessible for cleaning. Are lamps 25 are preferably displaceable laterally. The receiver 26 for the discharged copying material is hinged at 27 and may be lowered or removed.
Patent GB-525299-A (GB)
Title: Improvements relating to adjustable vehicle seat frames
IPC: B60N2/16
Filed: 1939-02-17
Abstract: 525,299. Adjustable vehicle seats. COX, R. W. Feb. 17, 1939, No. 5282. [Class 52 (ii)] In a vehicle seat having horizontal adjustment, the rear of the frame a, b, c, Fig. 1, slides on the floor or on a floor fitting, and the front is supported by one or more leg-like supports d pivotally attached to the frame and floor, and a pivoted securing link g is provided to interlock adjustably the leg-like support or supports and the frame. The link g is adjusted by a handle m. Instead of sliding on the floor the rear of the frame may slide up and down a ramp, or as shown in Fig. 4, a slidable rectangular frame p may be pivoted to the frame member c and the height may be adjusted by turning the rectangular frame. In further modifications the height is adjusted by means of an arcuate shoe pivoted beneath the frame member c, or by a supplementary support slidable along the member c by a rack and pinion. In other modifications permitting adjustment of the height, the seat-supporting part b of the frame is connected at the rear to the member c by a telescopic adjustment operated by a handle near the front of the seat, or instead of a telescopic adjustment a pawl and notch adjustment may be provided. In a further adjustment, Fig. 9, the members c are supported on a member 23 provided with an horizontal slot 24 in which is slidable a cylindrical metal piece 17. The piece 17 may be engaged selectively with notches 18 in a segment 19 on the member c for holding the seat frame at different heights, a forked hand lever 22 being used for disengaging the piece 17.
Patent GB-1081613-A (GB)
Title: Improvements in or relating to the manufacture of shoes
IPC: A43D25/08
Filed: 1963-02-09
Abstract: 1,081,613. Boots and shoes. BRITISH UNITED SHOE MACHINERY CO. Ltd., K. LEE and F. R. SMITH. Feb. 6, 1964 [Feb. 9, 1963], No. 5373/63. Heading A3B. A lasted upper S on a last 10 is set by being passed bottom downwards through a first chamber 4 having a humid atmosphere at a temperature of 47-53‹C. at the base of the last and 58-70‹C. one inch above the base, and then through a second chamber 6 in which hot dry air is directed on to the upper. Preferably the second temperature range is 58-62‹C. As shown the lasts are carried on a conveyer 8 by shoe supports comprising nylon covered wire mesh platforms 18 and polyurethane foam members 22 which by engagement with curtains 26, 28, 30 separate and seal chambers 4 and 6. Vapour from the thermostatically controlled boiler 42 and air from adjustable damper 46 pass via chimney 40 and inlet 34 into chamber 4. The drying air is circulated by fan 60 through ducts 62, where it is heated, to chamber 58, and thence through nozzles 54 on to the shoes in chamber 6. Air leaves nozzles 54 at a temperature of 100-130‹C. and velocity of about 75 feet per second. The conveyer may be run at any one of three speeds whereby the shoes spend in chambers 4 and 6 respectively, 75 secs. and 104 secs., 58 secs. and 80 secs., or 110 secs. and 152 secs.
Patent GB-1423945-A (GB)
Title: Manufacture of profiled bars or wire rod
IPC: B21B3/00
Filed: 1974-02-06
Abstract: 1423945 Rolling mills METALLURGIE HOBOKEN-OVERPELT 6 Feb 1974 [12 Feb 1973] 05520/74 Heading B3M Scale is removed from a bar, while it passes between the first stands of a continuous rolling mill, by jets of liquid under pressure. The bar, which may be of copper, passes through the mill after issuing from a continuous casting plant. The liquid may be water or a rolling emulsion and is under a pressure of between 20 and 60 atmospheres, with a flow rate of less than 50 l./min. (to avoid excessive cooling of the bar). The bar may be abruptly cooled, however, while passing through the last stands of the mill, by conveying liquid in tubular chambers along and around the bar under high pressure. This removes a crust of oxide formed on the bar, and allows quicker pickling after the rolling.
Patent GB-837794-A (GB)
Title: Improvements in or relating to control circuits for welding systems
IPC: B23K11/26
Filed: 1958-02-20
Abstract: 837,794. Control systems for resistance welders. ROBOTRON CORPORATION. Feb. 20, 1958 [April 29, 1957], No. 5549/58. Class 38 (4). A timing circuit for controlling the "squeeze" "weld" " hold " &c. operations of a welding system, wherein an additional timing circuit allows the welding current to flow during the " hold " period comprises a number of interconnected valves preferably thyratrons connected to capacitive resistance timing circuits. On closing a starting switch 8, a thyratron 6 conducts, energizing a relay 3 and closing contacts 9, 17, 18, contact 9 completing the electrode closing circuit, and contacts 18 shunting the starting switch 8. Contacts 17 complete the thyratron 12 circuit, but this does not conduct until the negative potential on the grid 24 supplied by the capacitor 28 falls. Conduction of thyratron 12 shunts a capacitor 48 which has been charging over a rectifier 44, and this discharging through a resistance 47 fires a thyratron 34 energizing transformer 37, firing thyratron 64 and operating a relay 66, 67 controlling the welding current. After a time interval, the discharging of capacitors 48, 56 in opposite senses blocks the thyratron 34, but thyratron 64 still conducts temporarily until the charge on a capacitor 55 becomes less than that of capacitor 56. At the same time as thyratron 34 is blocked a thyratron 74 is also blocked through a conductor 79, causing a capacitor 77 in the anode circuit which determines the hold period to discharge, after which time a thyratron 84 conducts and supplies a blocking potential to the thyratron 6 permitting the welding electrodes to open. If the starting switch 8 is held closed a further cycle of operations will follow as soon as a capacitor 89 in the anode circuit of thyratron 84 discharges through a resistor 87. Specification 833,389 and U.S.A. Specification 2,776,383 are referred to.
Patent GB-212555-A (GB)
Title: Improvements in or relating to signalling device for use on road and other vehicles
IPC: B60Q1/34
Filed: 1924-03-04
Abstract: 212,555. Burkhard, F., and Ostertag, K. March 10, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Illuminated stencil and transparency indicators. -A signalling apparatus for road vehicles &c. comprises a three-armed casing A, each arm being of circular cross section and having an arrow-shaped opening covered by coloured glass G. The arms carry lamps which are controlled by push buttons located on the steering wheel or other position near the driver. A lamp H is provided at the junction of the arms.
Patent GB-678578-A (GB)
Title: Improvements in or relating to phosphated fertilizers
IPC: C05B13/02
Filed: 1950-03-06
Abstract: Natural calcium phosphates are treated for the production of phosphatic fertilizers by heating at 1100-1200 DEG C with one or more alkali metal disaggregating agents, especially the potassium compounds, and then hydrolyzing the reaction mixture at 100 DEG C or less to recover the alkali metal as the hydroxide, or as carbonate if carbonic acid is present during hydrolysis.  Carbonates, sulphides or silicates, or chlorides in the presence of silica, or industrial by-products, especially potassium slags obtained in the desulphurization of crude iron, are suitably used as the alkali metal disaggregating agents.
Patent GB-224440-A (GB)
Title: Improvements in or relating to picks
IPC: B25G3/02
Filed: 1924-03-05
Abstract: 224,440. Hardy Patent Pick Co., Ltd., and Short, J. E. March 5, 1924. Fixing by T-sockets with locking-keys.-T. sockets for picks are in two parts one receiving the blade and the other the shaft, the two parts being fixed together and the blade secured in place by the locking-key. The part a which receives the recessed blade c is in the form of a T-head the leg d of which fits in a transverse slot in the end of the socket part b. The shaft is secured in the socket as by screws through the holes o. When the wedge or key g is driven in it engages the underside of the opening in the leg d drawing the two parts a, b tightly together and the upper part of the part a into the recess in the blade c. The upper end of the part b is preferably slightly recessed for the underside of the blade c.
Patent GB-548463-A (GB)
Title: Improvements in beam deflecting circuits for cathode ray tubes
IPC: H03K4/26
Filed: 1941-05-02
Abstract: 548,463. Valve circuits. BRITISH THOMSON-HOUSTON CO., Ltd. May 2, 1941, No. 5713. Convention date, May 3, 1940. [Class 40 (v)] The wave-form of the saw-tooth current in the deflecting coils of a cathode-ray tube is improved by feeding back to the amplifier a voltage proportional to the rate of change of the coil current. Saw-tooth voltage is fed to the control grid of a pentode valve 12, the anode circuit of which is coupled to the deflecting coils 14 by a transformer 23. One side of the coils 14 is earthed, and the other side is connected through a condenser 31 to the screen or other grid of the valve 12, supplying negative pulses thereto during the re-trace periods of the cycle.
Patent GB-1481404-A (GB)
Title: Providing an end of multistrand cable with means for pulling the cable
IPC: H02G1/08
Filed: 1976-02-13
Abstract: 1481404 Cable ends TELEFONAKTIEBOLAGET LM ERICSSON 13 Feb 1976 [27 Feb 1975] 05838/76 Heading D1T A method of providing an end of a multistrand cable 1 with means for pulling the cable comprises fitting a sleeve 5 on the end of the cable such that the sleeve projects beyond the cable end 2 to provide a mould, pouring molten material 9 into the mould to wet the strands 10 of the cable, and then causing the material 9 to harden, the hardened material partially embedding a pulling device 8. The strands 10 may be of metal, the material 9 may also be of metal, for example tin solder, and the end surface 2 of the cable and inner surface of the mould may be flux-treated before the molten metal is poured into the mould.  The sleeve 5 may be secured to the cable by clamping and gluing. The sleeve 5 can be of lead or copper.
Patent GB-1121689-A (GB)
Title: Load handling equipment
IPC: B60P1/64
Filed: 1966-02-10
Abstract: 1,121,689. Lifting apparatus; hydraulic jacks; loading vehicles. G. G. TURNER, (Ames Shovel and Tool Co.). 10 Feb., 1966, No. 5849/66. Headings B8E, B8H and B8J. A load-handling device as shown in Fig. 1 comprises a base 6, a pair of extensible and retractable legs A, B forming a bipod or twolegged boom. The leg A is pivoted at 18 to the base 6 and to the leg B at 27, from which a load L may be suspended. The other end of the leg B is pivoted to a flange 23 on a foot 24 at 23. The legs A, B are constituted by doubleacting fluid cylinder and piston assemblies 8, 10 and 12, 14, respectively. Operation of the cylinder and piston assemblies enables the pivot 27 to be moved anywhere in the area P bounded by arcs P 1 , P 3 , P 2 , P 4  corresponding to the maximum and minimum extensions of the legs A, B. The foot 24 may be suitably positioned with respect to the.pivot 18 by arms C, D pivoted to each other at 36 and to pivot 18 and 22, respectively. The arms C, D are positioned by extensible and retractable arms E, F consisting of double-acting cylinder and piston assemblies 38, 40 and 48, 50, respectively. When positioned as shown in phantom the pivot 27 may be positioned anywhere within the area Q bounded by arcs Q 1 , Q 3 , Q 2 , Q 4 . The load L may be suspended from the pivot 27 by a hook, grapple or cable or a chain-fall or winch may be hung on the pivot 27. Fig. 2 illustrates application of the device to lift one end of a long load 53 from a flat car 54 standing on railroad tracks 56. Two such devices, operated in unison may be used, one at each end of a very long load. In the modification shown in Fig. 3 the arms C, D, F are replaced by a rigid non-extensible bowed positioning arm G extending from the pivot 18 to the pivot 22 and positioned by the arm E pivoted at 64 to the arm G.
Patent GB-861643-A (GB)
Title: Improvements in an air flow control damper
Inventor: KENNEDY WALTER W
IPC: F24F13/10
Filed: 1958-02-24
Abstract: 861,643. Valves. BARBER-COLMAN CO. Feb. 24, 1958, No. 5891/58. Class 135. [Also in Group X] The control of air flowing through a duct 11, Fig. 1, is effected by a damper consisting of strips 17 of flexible material each supported on a pair of rods 18, 19 for folding movement into and out of edge-to-edge engagement to close or variably open the duct. The rods 18 are fixed whilst rods 19 are disposed in slots and movable transversely of the duct by a rack and pinion 27  connected to a handle 29. The strips 17, Fig. 8, are made of extruded rubber, and the rods are inserted through the hollow beads; the beads may be longitudinally split and each strip may increase in thickness from the centre towards the beads or have a weakened centre to facilitate the folding action. Each strip is made wider than the maximum distance between the rods. In the fully open position the two beads of each strip are in lateral contact and present a smooth diverging surface for the passage of air therethrough. The outside beads of the end strips seal against the duct when the damper is closed. The ends of each strip may be reinforced by webs to prevent longitudinal bending. Material such as leather, canvas, fabrics impregnated or coated with rubber, and polyethylene may also be used for the strips. Each strip may be formed from a flattened tube with the central areas sealed or cemented together. In another form sheet-material is utilized with the edges curled round the rods and held in slots therein or secured thereto by split tubes; the rods may be of square section intermediate the ends and covered by extruding or moulding the strip thereon. The intermediate rod sections may be pear-shaped, the strips being cemented thereto. The damper may be operated by movement of either or both rods.
Patent GB-1213783-A (GB)
Title: Transfer elements containing infrared-radiation-absorbing material
Inventor: NEWMAN DOUGLAS ALEXANDER
IPC: B41M5/10
Filed: 1969-02-04
Abstract: 1,213,783. Pressure-sensitive inks. COLUMBIA RIBBON & CARBON MFG. CO. Inc. 4 Feb., 1969, No. 5912/69. Heading C3P. [Also in Division D2] A pressure-sensitive transfer sheet of the squeeze-out type (see Division D2) has an ink phase comprising an oily vehicle, a colorant and an aminophenylaminium salt of the formula In the formula, R and R 1  may be the same or different, each is an alkyl group of from 1 to 5 atoms or a paradialkylaminophenyl group containing from 1 to 5 atoms in the alkyl groups, X- is an anion and the three groups may be the same or different. In the examples, compositions for the squeezeout layer comprise: (1) vinyl chloride-acetate copolymer, oleic acid, mineral oil, lard oil, toned carbon black, alkali blue, the aminium salt toluene and ethyl acetate; (2) polystyrene, castor oil, oleic acid, toned carbon black, alkali blue, clay, the aminium salt and methylene chloride; (3) vinyl chlorideacetate copolymer, methyl methacrylate, polystyrene, dioctyl phthalate, castor oil, oleic acid, alkali blue, toned carbon black, the aminium salt (see Formula III) above, toluene and methyl ethyl ketone. Reference is also made to salts in which the anion is picrate, benzenesulphonate, perchlorate, trichloracetate or hexafluoroarsenate and to the use as oily materials of fatty acids, their esters and fatty alcohols.
Patent GB-1453276-A (GB)
Title: Presses for moulding plastics material
IPC: B29C45/00
Filed: 1975-02-12
Abstract: 1453276 Injection and compression moulding apparatus MATERIEL POUR TOUTES APPLICATIONS PLASTIQUES 12 Feb 1975 [21 Feb 1974] 6000/75 Heading B5A A press for the production of plastics articles such as gramophone records in which a metered charge of plastics material is injected between two mould elements 2, 5 to form a relatively thick cake and the elements are then forced together to provide the article, comprises a fixed platen 1 supporting the element 2, a movable platen 3 on which is movably mounted an intermediate platen 4 carrying the element 5, and guide rods 7 along which the platen 3 travels. Platens 3, 4 are arranged as a piston and cylinder, and when platen 3 is brought to its most forward position by a toggle mechanism, not shown, the platen 4 is extended therefrom by pneumatically driven piston-cylinder means 18, 19 so that the mould elements abut. The plastics charge is then injected causing the elements to be separated slightly against the force applied by means 18, 19, and a cake to be formed. Pressure fluid is then supplied to the chamber 23 to press the cake to shape. Instead of pneumatic piston-cylinder means 18, 19, pressure liquid or springs may act on the piston 19. Cooling liquid is circulated through the mould elements.
Patent GB-1024197-A (GB)
Title: Improvements in and relating to automatic frequency-modulated stabilising circuits
IPC: H03C3/09
Filed: 1963-02-14
Abstract: 1,024,197. Automatic frequency control systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 14, 1963 [Feb. 14, 1962], No. 6017/63. Heading H3A. A frequency modulated wave is mixed with a stable reference frequency equal to the mean frequency to derive a difference frequency of unequal frequency limits during frequency drift of the F.M. wave and this difference frequency applied over a filter with output varying inversely in amplitude with its input frequency, to a pair of switches or gates operated alternately in dependence on the polarity of the modulation, and producing from detector circuits D.C. outputs of opposite polarity applied to a common circuit as A.F.C. voltage correcting and stabilizing the mean frequency of the F.M. wave. The detectors may be of long time constant so as to be responsive only to the limit frequencies from the filter. A very low pilot frequency may be superimposed on the modulation or this pilot may phase modulate the reference frequency mixed with F.M. wave and this combined signal then used to operate the switches.
Patent GB-916528-A (GB)
Title: Device for maintaining constant the static pressure in a conduit for a fluid medium
IPC: F15B21/04
Filed: 1961-02-17
Abstract: 916,528. Ventilators. SVENSKA FLAKTFABRIKEN A.B. Feb. 17, 1961 [Feb. 19, 1960], No. 6051/61. Class 137. [Also in Groups XXVII and XXIX] A governor for maintaining a substantially constant supply pressure in a gaseous flow conduit 1, e.g. for high-pressure air ventilating systems, comprises a housing 3 having an inlet 4 and an oppositely disposed outlet 5, a flow duct 6 within the housing between the inlet and outlet which duct has one end obturated by a pair of dampers 9, 10 movable towards or away from a local flow splitting member 7 in response to the static pressure in the conduit. The dampers are carried on beams 11, 12 pivoted respectively at 13, 14 and loaded by a weight 19 and connected by links 27, 28 to an operating bellows 23 which is connected to the outlet side of the device. The flow-splitting member 7 is covered by resilient material 8 against which the dampers seat in closed position. To reduce noise the duct 6 is perforated by holes and enclosed by sound-absorbent material 21 retained by an inner casing 22. The beams 11, 12 are additionally loaded by tension-springs 15 connected at opposite ends to the respective beams and hooked over pins 16.
Patent GB-1254934-A (GB)
Title: Improvements in spark gap assembly for current limiting lightning arresters or like articles
IPC: A63B67/02
Filed: 1969-02-04
Abstract: 1,254,934. Protective apparatus. GENERAL ELECTRIC CO. 4 Feb., 1969 [20 Feb., 1968], No. 6061/69. Heading H2H. A lightning arrester comprises a spark gap assembly having spark gap electrodes of such a shape that after an arc has been struck across the electrodes the arc is driven along arc running surfaces of the electrodes so as to be lengthened and extinguished without the aid of an additional electromagnetic coil device. A lightning arrester 1 comprises a housing 2 having terminals 3, 4 at the ends thereof, a non-linear resistor 10 and spark gap assembly 11 being disposed within the housing 2 and located between the terminals 3, 4 by means of a spring 14, the spark gap assembly being provided with an electrically conductive plate 12, 13 at the ends thereof. The spark gap assembly 11 comprises a plurality of porous plate members A-E formed of granulated aluminium oxide with a suitable binding material, the engaging surfaces of the members being shaped so as to form arc chambers in which are located pairs of electrodes 20, 22 forming arc gaps. The surfaces of the members A-E are provided with projections 30, 31 which engage the electrodes 20, 22 thereby controlling the electrode spacing. The electrodes 20, 22 are interconnected by a conductive link 23 and may be formed from generally U-shaped material with the exception of the end electrodes 26, 27 which are secured to the conductive plates 13, 12 at the ends of the spark gap assembly. The electrodes are shaped so as to have diverging arc running surfaces whereby the arcs are inherently driven to the walls of the arc chambers and extinguished. Each arc gap is provided with a pre-ionizing device which comprises a point metal electrode 32α fixed to one plate member which cooperates with an electrode 32h in the other plate member of a spark gap. The voltage appearing at the electrode 32a is provided by the self capacitive coupling between the electrode 32a and the gap electrodes 20, 22.