baber/WOPTO huggingface dataset:
Patent GB-1260141-A (GB)
Title: Improvements in and relating to control systems
Inventor: HALSALL JAMES RICHARD
IPC: H03M1/00
Filed: 1968-01-10
Abstract: 1,260,141. Measuring systems. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 Jan., 1969 [10 Jan., 1968], No. 1440/68. Heading G4H. Feedback encoders, one for each variable to be measured, deliver cyclic binary coded outputs to associated device selectors (DS, Fig. 4, not shown) connected to a digital computer which uses the output of any selected encoder to generate one or more control signals to output devices (OD). The encoder may encode an input voltage Vl (Fig. 1) by comparing it with the feedback voltage VF from a D/A converter DAC and pulsing a Gray code counter GC in the correct direction (direction control DC receiving the parity bit of the Gray code) until equality is reached. A Gray/binary converter GBC links the counter output to the converter DAC. Alternatively to digitize an input frequency (Fl, Fig. 2, not shown) the binary coded outputs from converter (GBC) control a frequency gating unit (SGU) receiving weighted frequencies derived from a reference frequency via a binary sealer BS until a frequency comparator (SC) detects equality.
Patent GB-964363-A (GB)
Title: Apparatus for the automatic removal of tyres from a vulcanising press
Inventor: EGEDKRAUT WERNER
IPC: B29D30/06
Filed: 1962-01-16
Abstract: 964,363. Tyre removing apparatus. ERSTE MASCHINENFABRIK KARL - MARX - STADT VEB. Jan. 16, 1962, No. 1531/62. Heading B5A. To remove tyres from a vulcanizing press, each side of a roller frame 4 is connected to the upper movable press member 7 by a suspension member 6 and an intermediate piece 5, which is constrained to move in grooves 3 in a plate 2 mounted at the side of the lower fixed press member. When the upper member 7 is raised alter vulcanization the roller frame moves from a horizontal position to the inclined position shown in the Figure, the tyre being ejected from the upper member on to the inclined frame down which it slides on to a take-off conveyer, not shown. Whilst the press is reclosed spraying nozzles 8 spray the mould halves. The upper rollers 10 are overhung as in Fig. 2 (not shown) to facilitate reloading of the press even if the frame sticks in the unloading position.
Patent GB-157867-A (GB)
Title: Improvements in or relating to section boilers
IPC: F24H1/30
Filed: 1921-01-10
Abstract: 157,867. Sulzer FrÞres Soc. Anon. May 4, 1917, [Convention date]. Sectional boilers.- In a boiler having flat superposed sections s i, the top section, which carries the furnace charging tube e and the outlet flue f, and the bottom section, which carries the grate m and the furnace door d, are of the same shape and are interchangeable. A plate g between the charging - tube and the top of the middle sections cuts off direct communication between the furnace and the outlet flue. The gases pass upwards through a .flue k in the sections, then around the charging-tube and plate g to the outlet flue. An opening t in the plate g allows gases rising in the central charging space to flow into the upper flue.
Patent GB-879967-A (GB)
Title: Improvements in or relating to electrical circuit selector parts
Inventor: CLEWES ANTONY BRASHER
IPC: H01H3/08
Filed: 1959-01-16
Abstract: 879,967. Mechanical switches, without quick action. CARR FASTENER CO. Ltd. Nov. 3, 1959 [Jan. 16, 1959], No. 1752/59. Class 38 (5). A circuit selector switch device such as described and claimed in Specification 863,835 has a flush-mounted disc 20 inserted in the face 17 and located by means of a moulded projection 19. A central projection 18 extends through an aperture in the disc and by means of a heated tool is burred over to retain the disc. The U-link 15 is mounted beneath the projection 19 which thus acts as an indicating device. The disc 20 may be formed from synthetic resin laminated paper strip on which indicia may be applied by hot-printing methods.
Patent GB-1504832-A (GB)
Title: Gentamicin derivatives and methods of production thereof
IPC: C07H15/234
Filed: 1976-01-16
Abstract: Reaction of a compound of the formula <IMAGE> in which either both R1 and R2 are methyl groups or one of the radicals R1 and R2 is a methyl group and the other is a hydrogen atom, with an oxidising agent results, in the case where R1 and R2 are methyl groups, in removal of the methyl group on the N atom in the 3'' position or both methyl groups and, in the case where one of the radicals R1 and R2 is a methyl group and the other is a hydrogen atom, in removal of the methyl group, resulting in the corresponding demethylgentamicin derivatives. The prepared antibiotics have a broad spectrum of antibacterial action and very low toxicity.
Patent GB-854979-A (GB)
Title: Polymerisation of chloroprene
IPC: C08F36/16
Filed: 1958-01-20
Abstract: Chloroprene is polymerized in the presence of 0,005 to 2% by weight based on the weight of the chloroprene, of a compound consisting of a six to eight membered ring; said ring containing only nitrogen and sulphur as ring-forming atoms and containing at least one <FORM:0854979/IV(a)/1> or <FORM:0854979/IV(a)/2> grouping where X is hydrogen, a metal, an acyl, methylol or carbonamide group which groups are devoid of unsaturated carbonto-carbon linkages and Hal is a halogen atom.  Specified ring compounds are nitrogen sulphide, tetrahydronitrogen sulphide, nitrogen pentasulphide, N-methylol-tetrasulphur tetramide, trithiacyl halide, thiotrithiazyl chloride, heptasulphur imide, N-acetyl heptasulphur imide and nitrogen sulphide complexes of the formula S4N4-Me where Me is cobalt, palladium, nickel, iron, lead, thallium, copper or silver. The chloroprene may be copolymerized with butadiene, isoprene, dichlorobutadiene, styrene, esters of acrylic or methacrylic acid with methanol, ethanol, propanol and butanol and vinylidene chloride. The polymerization may be effected in aqueous solution in the presence of emulsifiers, anti-oxidants and regulators of which lists are given.  The examples describe the preparation of polymers from chloroprene and chloroprene and vinylidene chloride.
Patent GB-1292005-A (GB)
Title: Article transporting mechanism
Inventor: HARTZ GERALD
IPC: B65G47/52
Filed: 1970-01-14
Abstract: 1292005 Transferring articles between belt conveyers REYNOLDS METALS CO 14 Jan 1970 [6 Feb 1969] 1897/70 Heading B8A Mechanism for transferring pouches (P) (Fig. 10, not shown) from a first conveyer 12 of a cooking or sterilizing retort 10 carrying a number of article holders 18, to a second conveyer 20 disposed at a lower level than the first conveyer, comprises a transfer device 30 reciprocable between an upper position (Fig. 1) in which it receives articles from the holders and a lower position (Fig. 2, not shown) in which it deposits the articles on the second conveyer. The device 30 comprises a carrier 34 (Fig. 7) fixed to a transfer arm 32 which is swingable about a generally horizontal axis 40, by the action of a rack and pinion 46, 44 driven by a pneumatic piston and cylinder 48. Means for synchronizing the operation of the power device with the advance of the first conveyer comprises cams 56 which operate a switch 58. Each article holder 18 includes a hinged and spring-loaded bottom plate 66 operable by means of a cam 60 adjacent the transfer position, which co-operate with a follower member in the form of a rod 76 on the plate 66. This causes the plate 66 to move to an open position and allow a load of pouches (P) to be discharged into respective compartments of the carrier 34. The latter is then swung down by the action of the rack-andpinion mechanism 48 to drop the pouches on to the conveyer 20.
Patent GB-1019047-A (GB)
Title: Improvements in or relating to air cushion vehicles
Inventor: HARDY DEREK JAMES
IPC: B60V1/00
Filed: 1964-01-16
Abstract: 1,019,047. Air cushion vehicles. WESTLAND AIRCRAFT Ltd. Dec. 10, 1964 [Jan. 16, 1964], No. 1903/64. Heading B7K. An air cushion vehicle has shock-absorbing devices 7, Fig. 3 (not shown), attached to the underside of the vehicle to reduce the effect of impact when the vehicle is moving. Each device comprises an inflatable component secured by sealing means 9, 10 to the underside of the vehicle and inflated through a duct 11. Alternatively the devices may comprise skis attached to the vehicle by rubber shockabsorber members. The shock-absorbing devices are enclosed within, and do not project beyond a fully downwardly extended air cushion retaining barrier, and are spaced apart from and form no part of said air cushion retaining barrier.
Patent GB-696443-A (GB)
Title: Improvements in or relating to variable speed power transmission
IPC: B60K17/08
Filed: 1948-02-05
Abstract: 696,443. Change-speed gear. CHRYSLER CORPORATION. Feb. 5, 1948 [Oct. 9, 1940], No. 1923/51. Drawings to Specification. Class 80 (ii). The subject-matter is the same as that of Specification 696,411 but the claims differ. Specifications 696,442 and 696,444 also are referred to.
Patent GB-476402-A (GB)
Title: Improvements in or relating to tip-wagons
IPC: B60P1/16
Filed: 1937-01-22
Abstract: 476,402. Tipping vehicles. ASSOCIATED EQUIPMENT CO., Ltd., and RACKHAM, G. J. Jan. 22, 1937, No. 1966. [Class 108 (i)] In vehicles adapted to be tipped about one end a stabilizing device is provided which is supplementary to the tipping means and connects the body to the chassis at a location displaced from the tipping axis and is arranged to follow up the tipping movement of the body and to offer resistance to lateral movement of the tipped body. The body 14 adapted to be tipped about pivots 15, 16 by means of telescopic rams 22 trunnioned in cross members 18, 19 secured to the chassis members 10 is also provided with stabilizing means comprising a pair of members 25, 26 pivoted to the chassis or cross members thereof at 29 and at the other end to a block or sleeve 31 slidable on a rod 32 carried by the body. Jacks 35 may be provided in known manner for use when the body is to be tipped on uneven ground. Fig. 5 shows the arrangement when applied to a truck adapted for side as well as end tipping. In this case when side tipping is to take place the struts 25, 26 are disconnected from the sleeve 31 by means of a screwed pin 52 so as to be inoperative. As shown the body is tipped by a single telescopic ram 22 pivotally mounted in a frame 47 pivoted at 48 to the side members 10.
Patent GB-1091544-A (GB)
Title: Improvements in devices for cleaning conveyor and like belts
Inventor: GIRARDIN ANDRE
IPC: B65G45/16
Filed: 1965-01-15
Abstract: 1,091,544. Cleaning conveyer belts. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan. 15, 1965 [Jan. 15, 1964], No. 1974/65. Heading B8A. Scraper blades 21a, 21b are carried by members 24 on respective sides of a conveyer belt 2. Spring units 30 act between a fixed frame 40 and the associated member 24 to urge the blades 21a, 21b against the belt 2. A plate (54) of glass (Fig. 3b, not shown) overlaid by a sheet (56) of rubber and a sheet metal support (52), serves to limit oscillation of the belt 2. A series of jets 58 spray atomized liquid on the belt. The outer jets are angled inwardly. Means are provided (Fig. 5, not shown) for supplying compressed air, instead of liquid, to the jets 58. A drying roller 78 is carried by arms 84 adjustable at 86. Water is squeezed out of the roller 78 by a pressure roller 88. A simpler construction (Fig. 1, not shown) is described which uses only one scraper blade.
Patent GB-233018-A (GB)
Title: Improvements in or relating to apparatus for discharging grain and other material from railway wagons
IPC: B65G67/00
Filed: 1924-01-25
Abstract: 233,018. Hill, L. C. Jan. 25, 1924. Machinery, utilizing inertia to obtain movements in.-Mechanism for moving a railway wagon &c. longitudinally to and fro in order to discharge its contents is adapted to jar the wagon at each end of the movement, to give a heavy jar at either end, and to vary the extent of the movement. The wagon is held between end clamps 31 connected with a rod 37 which is moved to and fro by the eccentric 51 and slide block 54. The block is loose on the rod 37 between collars 57, 58 thereon. In addition, abutments 59, 60 adjustable longitudinally on the rail structure co-operate with collars on the rod 37. The collar 57 has two positions of adjustment on the rod 37; in one position the slideblock is a working fit between the collars 57, 58, and in the other position there is lost motion. The eccentric 51 is adjustable through about 90‹ on an eccentric 50 keyed on the driving shaft 49. The inner eccentric drives the outer by a kev 56. The throw of the eccentric 51 is therefore short or long according to the direction of rotation. The heavy jars at one end of the stroke are given by adjusting the collar 57 to permit of lost motion, and running the eccentric at low speed with the longer throw, the abutment 59, 60 being adjusted to left or right so that either the collar 58 strikes the abutment 59, or a third collar 63 on the rod 37 strikes the abutment 60.
Patent GB-241065-A (GB)
Title: Improvements in garment stretchers
IPC: A47G25/70
Filed: 1925-01-23
Abstract: 241,065. Haygarth, J. W., and Haygarth, J. Jan. 23, 1925. Stretchers, garment. - A stretcher of the insertion type comprises a single length of resilient wire a provided with a spring loop b and turned over at the ends c to prevent damage to the trousers. The wire may be of triangular cross-section, the apex of the triangle engaging in the crease. Reference has been directed by the Comptroller to Specifications 18756/07 and 15644/15.
Patent GB-228195-A (GB)
Filed: 1925-01-26
Abstract: Isopropylallylbarbituric acid is prepared by treating an alkali compound of mono-isopropylbarbituric acid with an allyl halide either at a raised temperature or under pressure at any temperature. Examples are given.
Patent GB-578888-A (GB)
Title: Improved process for the production of polymeric materials
IPC: B01J27/06
Filed: 1944-02-08
Abstract: A low-temperature polymerization catalyst comprises a double salt of a Friedel-Crafts metal with a halogen acid and an organic acid.  It may be prepared by treating the metallic halide with the organic acid and boiling out hydrogen halide.  Suitable organic acids are formic, acetic, propionic and the enolic form of acetyl acetone.  Any Friedel-Crafts metal, particularly aluminium and titanium may be used.  The Specification includes examples of the polymerization of isobutylene, styrene, a mixture of isobutylene with 1 per cent of isoprene and vinyl acetate.
Patent GB-1323391-A (GB)
Title: Valve control system and method
IPC: F17D5/06
Filed: 1972-01-18
Abstract: 1323391 Isolating faulty pipe-lines M H GROVE J M E GROVE [trading as M & J DEVELOPMENT CO] 18 Jan 1972 [3 Feb 1971] 2377/72 Heading G1N Apparatus for isolating a pipe line when a leak or break is sensed comprises a transducer measuring the pressure of the fluid in the pipeline, and means for comparing the instantaneous pressure with a reference signal corresponding to the normal pressure. When the measured pressure falls at more than a predetermined rate a shut down valve is operated, As shown (Fig. 1), the pressure inside a pipeline is measured by transducer 10 to develop a corresponding voltage across a resistor 12, which is fed to a capacitor memory device 21, holding the maximum value as a reference signal. When the measured signal is less than the reference signal, as sensed by a differential amplifier 18, a Schmitt trigger circuit 26 fires and starts a ramp generator 16 which adds voltage across resistor 12. If there is no leak or break in the pipeline the total voltage across resistor 12 now equals or exceeds the reference signal, the Schmitt trigger circuit returns to normal, switching off the ramp generator 16 and resetting the capacitor memory device 21. If there is a leak or break, the total voltage across resistor 12 continues to fall below the reference signal and when the ramp voltage reaches a pre-set level a detector 21 causes a relay 33 to operate, closing a valve located downstream of the pressure transducer 10. In one embodiment the system is reset after a timed delay, to check that the pressure is still falling before the relay 33 is permanently operated.
Patent GB-798959-A (GB)
Title: Improvements in and relating to resistance welding apparatus
Inventor: TUCKER NORMAN ALBERT
IPC: B23K11/31
Filed: 1956-01-25
Abstract: 798,959. Welding by pressure. MALLORY METALLURGICAL PRODUCTS, Ltd. Jan. 9, 1957 [Jan. 25, 1956], No. 2443/56. Class 83 (4). An adapter for mounting an electrode in a resistance welding apparatus has a flat-sided block 2 rigidly connected to a shank 1 adapted to be revolubly mounted in the frame of the apparatus, and a one or two piece flatsided block 6 detachably and rotatably secured to one face of the block 2 and provided with means such as the bore 11 for securing an electrode or an electrode holder. The block 6 is secured in any of a number of positions by bolts 13. The block 2 is at an angle of say 22¢ or 67¢ degrees to the axis of the shank 1. Specification 596,145 is referred to.
Patent GB-379971-A (GB)
Title: Improvements in and connected with the use of loud speakers in electric signalling devices
IPC: H03F1/54
Filed: 1932-01-27
Abstract: 379,971. Valve amplifying circuits. IDEAL WERKE AKT.-GES.FœR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohenschonhausen, Germany. Jan. 27, 1932, No. 2475. Convention date, Feb. 24, 1931. [Class 40 (v).] In order to prevent rise in voltage of a valve supply current rectifier when the load due to the last stage of a radio receiver is removed by disconnecting the loudspeaker, a resistance 3 is permanently connected across the loud-speaker terminals on the receiver.
Patent GB-698853-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J19/30
Filed: 1952-01-30
Abstract: 698,853. Electrode materials and processing. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 30, 1952 [Feb. 2, 1951], No. 2495/52. Class 39(i) In a discharge tube containing a tungsten thorium filamentary cathode and one or more grids coated, at least in part, with platinum to reduce grid emission, the grids are further coated with a heatradiating layer of a high melting point metal such as tantalum or zirconium. A molybdenum wire may be electrolytically coated with platinum and then with a suspension of zirconium; grid temperatures, currents and the thickness of the coatings are specified for a transmitting tube.
Patent GB-386133-A (GB)
Title: Improvements in or relating to measuring apparatus
IPC: G01R17/08
Filed: 1932-01-27
Abstract: 386,133. Relay devices. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER, 17, Riddargatan, Stockholm. Jan. 27, 1932, No. 2533. Convention date, Jan. 29, 1931. [Class 118 (ii).] Indicating-apparatus of the relay and follow-up type comprises a starter for a reversible motor, the starter including a lever in contact with the part moved in response to the factor to be measured, an equilibrating arrangement in driving connection with the motor, and indicating means, the equilibrating arrangement being mechanical and including a cam shaped in relation to the predetermined scale and driven from said motor, a lever connected 'to the cam follower, and a spring connecting this lever to the starter lever. As applied to apparatus for indicating the speed of and registering the distance covered by a ship, the dynamic and static tubes 3, 4 are led to the opposite sides of a diaphragm 7 dividing a vessel 6 into two compartments. The movement of the diaphragm is transmitted by a rod 8 to the short arm 11 of a lever 9 pivoted at 10 and moving between stops 34, 35. The movement of the lever is transmitted by rack and pinion to a lever 12 moving over resistance 13 constituting a starter for a motor 14. The latter drives through a shaft 15 and worm 16 a worm wheel 17 carrying a cam 18 acting on a bell crank lever 20 fixed to one end of a spring 22, the other end of which is attached to the end of the lever 9. Normally the spring 22 is in line with the lever 9, and when the ship is under way and the diaphragm moves upward, the starter is brought into play and the motor actuates the cam to put tension on the spring 22. When this is sufficient to overcome the force exerted by the diaphragm the lever returns to zero and the speed is indicated by a pointer 25. The distance is registered on a counter 33 operated by a small friction wheel 29 driven from a -cone wheel 30 driven from a clock 32, the wheel 29 being moved across the wheel 30 according to the speed by a screw 27.on the shaft 15.
Patent GB-676867-A (GB)
Title: Improvements in or relating to the coating of paper, and apparatus therefor
Filed: 1949-01-29
Abstract: 676,867. Coating paper. MEAD CORPORATION. Jan. 29, 1949 [Jan. 31, 1948], No. 2533/49. Classes 96 and 140. [Also in Group XIII] Paper is provided with a substantially smooth and finished coating by applying a fluent coating material, and subjecting it, while still mobile and fluent, to contact with the surface of a smoothing and finishing member, and modifying the adhesion characteristics of the coating for the member while in contact therewith, and without removal of fluid from the coating, to effect substantially complete release and separation of the coated surface from the member, while retaining a smooth surface finish on the coating. As shown in Fig. 1, coating material is fed by pipes 17 into the nip of rolls 20, 21 ; the roll 20 transfers the material to roll 16, which applies it to the web 11 at the nip of the rolls 15, 16. The coated web, while the coating is still mobile or deformable, is then carried into the nip between the smoothing roll 25, which is refrigerated, and the roll 26 which may be rubber-covered. The roll 25 is hollow and is cooled to - 8‹ to - 60‹ C., as by charging it with solid carbon dioxide and a heat transferring liquid such as a mixture of denatured alcohol and carbon tetrachloride, or of acetone and water ; or by circulation therethrough of a refrigerant such as cooled brine. The surface of the coating is smoothed and frozen by contact with the roll 25, and this modifies its adhesive character so that it does not stick to the roll. While the coating is still frozen, the web may be passed over a fly roll 30 ; it is dried by passing over drying tubes 35, under tubes 36, which direct hot air at it, and over drier drums 37 and 38. In the alternative arrangement of Fig. 5, a web 63 is coated at the nip between rolls 62 and 66, and the coating smoothed and frozen by passing through the nip between the roll 66 and a refrigerated roll 65. The web may subsequently be subjected to a supercalendering operation. As examples of suitable coating compositions, mixtures of mineral pigments such as calcium carbonate, United States clay, barium sulphatezinc sulphide pigment, satin white with enzyme converted corn starch or casein, with or without sodium hexametaphosphate, soap, sodium carbonate, calcium stearate or sulphonated tallow are quoted. Specification 522,196 and U.S.A. Specification 1,597,219 are referred to.
Patent GB-912396-A (GB)
Title: Adjusting means for swing lever suspension, particularly for vehicle seats
IPC: B60N2/04
Filed: 1961-01-23
Abstract: 912,396. Seat suspensions. BRUNS WERKZEUGFABRIK G.m.b.H., CARL. Jan. 23, 1961 [Jan. 23, 1960], No. 2558/61. Classes 52(1) and 52 (2). In a suspension for a vehicle seat 9 comprising lever arms 5, 6 on pivots 3, 4, 7, 8, the swing deflections are controlled by a spring 10 and amplitude of deflection and height of the seat are adjusted by means of an abutment member 12 tiltable about a pin 11 on the pedestal base 2 by means of a screw 15, the lever 6 carrying a rubber buffer 13 which engages member 12. In a modification, Fig. 2, for a tractor seat, the plate 16 is tiltably adjustable about a cylindrical bearing face 17. The damping means consists of a shock absorber 20 and spring 21 and is adjustable by a control 22.