baber/WOPTO huggingface dataset:
Patent GB-743407-A (GB)
Title: Improvements in or relating to check weighing
Inventor: JEFFERSON SIDNEY
IPC: B07C5/32
Filed: 1952-07-09
Abstract: 743,407. Weighing apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 9, 1953 [July 9, 1952], No. 17260/52. Class 143 A balance arm is automatically released for a predetermined maximum time and is re-clamped if it then tilts to a predetermined extent. A rising unit 7 regularly de-energizes relay R to actuate solenoid clamps 12, 13 and release the balance beam 1; if the beam is unbalanced contacts 8 or 9 are closed to energize indicators 10 or 11 according to the direction of unbalance; the closure of contacts 8 or 9 also energizes relay R to reclamp the balance beam; if the beam is balanced, it remains unclamped until the timing device 7 energizes solenoid R. Solenoid 13 may be arranged to operate slightly ahead of solenoid 12. Condenser plates may be substituted for the contacts 8 and 9 and connected into a bridge feeding a phase discriminator; alternatively the device described in Specification 693,431 may be used, a light beam impinging on photo-electric cells when the unbalance reaches its pre-determined extent.
Patent GB-447810-A (GB)
Title: A process of making cold-swelling starch
IPC: C09J103/00
Filed: 1935-06-17
Abstract: A solution in cold water of a mixture of starch and alkali silicate is used as a detergent.  For example, 100 lb. of silicate of soda and 40 lb. of potato starch are dissolved in 2800--3500 lb. of cold water, 25--40 lb. of soap powder, or 25 lb. of soap powder and 15 lb. of lauryl or other soap-like fatty alcohol may be added.ALSO:Unmodified starch, e.g. potato, maize, or tapioca starch, and a crystalline alkali silicate are mixed.  The mixture dissolves in cold water, and may be used to form sizes, adhesives or detergents, if desired with the addition of soaps, wetting-agents, rosin, protein, lecithin, pigments, fillers, or modified starch.
Patent GB-1456473-A (GB)
Title: Processs for the preparation of sulphonate-group containing aromatic polyamides
IPC: C08G69/32
Filed: 1975-04-25
Abstract: 1456473 Basic-dyeable aromatic polyamides HOECHST AG 25 April 1975 [27 April 1974] 17345/75 Heading C3R  Basic dyeable substantially or completely aromatic polyamides are prepared by the solution polycondensation of an acid component comprising an aromatic dicarboxylic acid dichloride and, if present, at most 5 mol per cent of an aliphatic acid dichloride plus 2 to 15 mol per cent of 4-chlorocarbonyl-2-sulphobenzoic acid anhydride with a substantially stoichiometric amount of an amine component comprising an aromatic diamine and, if present, at most 5 mol per cent of an aliphatic diamine, After polycondensation the product may be reacted with a base, e.g. LiOH or Ca(OH) 2  to neutralize HCl and the sulphonate groups, or in an embodiment designed to avoid high salt content in the resulting spinning solution reaction may first be effected using only 90 to 95% of the acid component, neutralizing the HCI formed with NH 3  and filtering off NH 4 Cl, and finally completing the condensation with the remainder of the acid component and neutralizing with Ca(OH) 2 . The salt content may also be reduced or removed by precipitation, washing, drying and redissolving the product. The resulting solution may be wet or dry spun. In examples 4 - chlorocarbonyl - 2 - sulphobenzoic acid anhydride is polycondensed with isophthalic acid, chloride with or without adipic or terephthalic acid chloride and m-phenylene diamine with or without 2,4-diaminoacetanilide or 4,4<SP>1</SP>-diaminodiphenyl ethane.
Patent GB-1203473-A (GB)
Title: Method of providing an aluminium coating on a steel substrate
Inventor: JACKSON ALBERT EDWARD
IPC: B31B50/86
Filed: 1968-04-11
Abstract: 1,203,473. Coating steel with sintered aluminium; electrolytically coating with iron. JOHN SUMMERS & SONS Ltd. March 25, 1969 [April 11, 1968], No. 17533/68. Headings C7B and C7D. A steel substrate such as strip is coated with a first layer of metal e. g. Fe and then with Al powder. The coated steel is compacted as by rolling and then heated to sinter the Al. The Fe layer is applied either electrolytically or as an electrostatically charged powder. The Al powder may also be applied in an electrostatically charged condition. The cleaned steel strip may be coated with a solution of sodium or potassium silicate prior to coating with the Fe and prior to rolling the coated strip a coating of sodium carboxy methyl cellulose is applied to the Al. The compacted strip is coiled and sintered in air at 450‹- 575‹C. for 15-20 hours. The Fe is deposited electrolytically from an aqueus solution of ferrous chloride or ferrous sulphate e.g. waste pickle liquor neutralized with excess Fe at a current up to 500 amps/sq. ft.
Patent GB-477047-A (GB)
Title: Improvements in or relating to mechanism for controlling rocking furnaces
IPC: H05B1/02
Filed: 1936-06-24
Abstract: 477,047. Variable - speed gearing. SADLER, A. (Detroit Electric Furnace Co.) June 24, 1936, No. 17536. [Class 80 (ii)] [Also in Groups XII and XXXVII] A variable-speed gear in the drive of a mechanism for controlling the angular movement of a rocking-furnace comprises stepped gears g<7> on the driven shaft g<1> and pinions h<1>, h<2> in constant mesh with a toothed driving-shaft h and carried by a spider h', to the shaft h<5> of which is attached an operating handle h<6>. The shaft is held in any one of three positions by a ball catch h<7>, and in each position the shaft h<5> can be rotated to bring one or other of the pinions h<1>, h<2> into engagement with the stepped gears g<7>.
Patent GB-175962-A (GB)
Abstract: 175,962. Schulmeyer, J., and Hildmann, P. Feb. 23, 1921, [Convention date]. Atmospheric gas burners.-In a gas burner, gasis supplied through an outlet o of a tube d, which extends radially into a tube a, and is mixed with compressed air passing through the tube a to a burner head b. The tube d<1> may extend completely across the tube a.
Patent GB-910345-A (GB)
Title: Improvements in or relating to analytical balances
IPC: G01G1/00
Filed: 1961-05-15
Abstract: 910,345. Weighing-apparatus. METTLER, E., [trading as METTLER, FABRIK FUR ANALYSENWAAGEN, E.]. May 15, 1961, No. 17632/61. Class 143. A chemical balance in which the scale-pan is suspended through a tie-rod 19 from the end of the shorter arm 3 of an asymmetrical beam and the counterweight 9 is carried by the longer arm 4, which also carries a graduated dial 11 to give readings of the inclination of the beam, has slide means to lift the beam off its support and to lift the scale pan off the beam, such slide means comprising a vertical column 22 surrounded by a sleeve 20 axially movable under the action of a member 34, rotation of the sleeve being prevented by a biasing spring 32 whereby a member 21 connected to it is in sliding engagement with a vertical guide pin 27. Pins 37, 38, 39 projecting vertically upwards from the member 21 lift a member 16, from which the tie rod 19 is hung, off its knife edge 8 ; a pin 42, engaging the shorter arm 3, and pins 40, engaging the longer arm 4, lift the beam off its knife edge 7. The member 34 is given an upward movement by the rotation of an eccentric 35. Adjustment of the sleeve 20 relatively to the column 22 is provided for by set screws 23-26 and adjustment of the member 21 relatively to the vertical pin 27 is provided for by set screws, e.g. 30. In a modification, two slide members may be used, one to raise, or arrest, the scale pan suspension, and the other to arrest the beam. The two slide members may have concentric sleeves. In another modification, the pin 42 may be dispensed with and two slide members used, one with pins 37, 38, 39 lifting the member 16 and pins 40 engaging the beam beneath the knife edge 7 and the other movable downwards and engaging the arm 3 from the knife edge 5.
Patent GB-596292-A (GB)
Title: Improvements relating to fine and coarse error signal systems
IPC: G05D3/16
Filed: 1944-09-14
Abstract: 596,292. Electric control systems. SPERRY GYROSCOPE CO., Inc. Sept. 14,1944, No. 17636. Convention date, Sept. 14, 1943. [Class 40 (i)] A system for controlling a servomotor by fine and coarse error signals comprises fine and coarse transmitters and receivers, electron tubes connected to the outputs of the receivers and means to control the tubes so that when the error voltage exceeds a predetermined value, the output is supplied only from the coarse receiver. As shown, Fig. 1, rotation of coarse and fine rotors 3, and 5 by shaft 1, causes signal voltages to be induced in receiver rotors 14, 19. These signal voltages are applied to the grids of a twin triode tube 17 and the outputs added together in transformer 27 are applied through a phase sensitive amplifier 30 to the servomotor 2, a repeat back to the receiver rotors being provided through gears 50, 52, 54, 56, 58. The tube 17 is arranged to provide a greater degree of amplification for the fine error signals than for coarse signals so that for error signals below a predetermined value the fine error signal output predominates. For error signals above this value, the coarse error voltage applied through rectifier 32 to the grid 22 of tube 17 is sufficient to bias that part of the tube to cut-off so that only the coarse error voltage affects the motor. By placing a filter, comprising resistors 42, 43 and condenser 44, between the anode of rectifier 32 and grid 22, alternating current components are filtered out and only direct current is supplied to the grid.
Patent GB-1267393-A (GB)
Title: Process for the hardening of agglomerated bodies such as pellets, briquettes, pieces or the like, preferably from ore concentrate or concentrates
Inventor: WIJARD ENDEL
IPC: C22B1/14
Filed: 1969-04-03
Abstract: 1,267,393. Hard agglomerated bodies. ELEKTRODIUS A.B. 3 April, 1969 [ April, 1968], No. 17654/69. Heading C1A. Hard bodies from an ore concentrate are manufactured by a process comprising the steps of mixing the ore concentrate with a humidifying agent, a slag former on a bonding agent, forming agglomerated bodies from the resulting mass and exposing said bodies to a highfrequency alternating magnetic field. The exposure should be of such a time that the temperature of the bodies rises to below 100‹ C. Additional hardening may be achieved by a subsequent hydrothermal treatment at 190‹ C. and at 12-13 atmospheres gauge. The concentrate is preferably of iron ore. The bonding agent is preferably granulated finely ground slag derived from a metallurgic melting process, preferably a blast furnace slag, which also functions as the slag former although limestone, dolomite or magnesite together with magnesium carbonate, may also be present. In an example an induction coil is fed with a power of 4-6 kw. at a frequency of 1 MHz.
Patent GB-732945-A (GB)
Title: Improved method of stabilizing hydrates of sodium metaborate
IPC: C01B35/12
Filed: 1953-06-26
Abstract: Sodium metaborate hydrates are stabilized by heating particles thereof in admixture with either phthalic anhydride, boric anhydride or metaboric acid.  According to examples: (1) boric anhydride was added to sodium metaborate tetrahydrate in a concentration of 10 per cent and heated for 4 hours at 70 DEG  C.; (2) 2.5 per cent of phthalic anhydride was added to the metaborate and the mixture heated as in (1) above; (3) 10 per cent of metaboric acid was employed and the mixture heated as before; (4) 10 per cent phthalic anhydride was added to sodium metaborate and the mixture heated at 40 DEG  C. for 30 days; (5) per cent boric anhydride was added to sodium metaborate and the mixture was dusted on a metal plate heated to 400 DEG  C. Water was explosively driven off leaving a product containing 9.1 per cent water.  Specifications 585,366 and 698,311, [both in Group XX], are referred to.
Patent GB-1347717-A (GB)
Title: Photographic silver halide elements
IPC: G03C1/035
Filed: 1971-05-28
Abstract: 1347717 Photographic spectrally sensitized silver halide material EASTMAN KODAK CO 28 May 1971 [20 July 1970] 17747/71 Heading G2C A photographic material comprises a support and at least one layer containing an internal image silver halide emulsion comprising silver halide grains wherein the radiation sensitivity is predominantly internal to said grains and a spectrally sensitizing dye having a radiation absorption peak below 700 mp and a cathodic halfwave potential less positive than -I.OV present in a concentration which will lower the blue speed sensitivity of a surface sensitive control silver bromoiodide emulsion, wherein the halide is 6 mole per cent iodide, of the same average grain size at least 0À3 log E when developed for 3 minutes at 20‹C in developer D-19 (containing N-methyl-p-aminophenol sulphate, sodium sulphite (anhydrous), hydroquinone, sodium carbonate (monohydrate), KBr and water) and is sulphur and gold sensitized. The sensitizing dye may be used in a concentration which will provide at least 60% coverage of the total available surface of the grains. The sensitizing dye may be a cyanine, isocyanine, pseudocyanine, hemicyanine, merocyanine, oxonol or azacyanine dye. The silver halide grains mabe internally chemically sensitized and may have at least one metal dopant occluded therein e.g. bismuth, lead or iridium ions. The grains may have core and shell structures. Examples 5 describes a silver salt diffusion transfer process.
Patent GB-217778-A (GB)
Title: Improvements in lawn tennis and the like recquets
IPC: A63B49/00
Filed: 1923-07-09
Abstract: 217,778. Surridge & Co., Ltd., S., and Surridge, P. July 9, 1923. Rackets. - A reinforcement for preventing the fraying of the strings of a racket comprises a metal element 4 located in a recess 2 formed in the periphery of the racket frame 1. The element 4, which may be of spring steel and may be tubular, V, or other section, has a curved surface over which the loops 5 of gut pass, and extends between the two rows of holes 3 through which the gut is led through the frame. A rib may be provided to support the strip 4, as shown in Fig. 5, and the groove 2 is preferably made sufficiently deep to prevent the gut extending beyond the surface of the frame.
Patent GB-168860-A (GB)
Title: Improvements in protective apparatus for electrical systems
IPC: H01H71/10
Filed: 1921-06-30
Abstract: 168,860. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Travers, H. A., and Moss, C. M.). Sept. 8, 1920, [Convention date]. Protective arrangements. - Distribution systems comprising one or more sets of bus-bars each connected to a group of feeders are protected by cutting out single feeders in case of a moderate overload, and by cutting out an entire group in case of a short circuit on any one feeder. In the second case the grouping switch is automatically released, and eventually only the faulty feeder is left out of action. The Figure shows a protective arrangement for a set of bus-bars 2 which are supplied from a generator 1 through a circuitbreaker 3, and supply two or more feeders 4, 5 through respective circuit-breakers 6, 7. The circuit-breaker 3 is provided with two electromagnetic windings 9, 10, one for closing, the other for tripping it open, and is associated with a latching relay 28 which reacts upon the circuitbreaker windings immediately after an automatic response originating in any feeder. The responsive devices for the feeder 4 comprise series transformers 54, 55 connected to slowly acting overload relays 57, 59, and also to a quick acting relay 58, which is similar in construction to the latching relay 28 and is provided with responsive coils 63 effective only in case of a short-circuit on the feeder. Similar responsive devices are associated with each of the other feeders of the group. In case of a moderate overload, the relays 57, 59 energize the tripping-coil 43 of the circuit-breaker which opens without affecting the relay 58 and the group circuit-breaker 3. In case of a short circuit, the coils 63 cause the relay 58 to make connection for tripping open the group circuitbreaker, the opening of which, by means of an auxiliary contact 16, determines the opening of the circuit-breaker of the individual faulty feeder, and also, by means of the auxiliary relay 28, determines the reclosing of the group circuitbreaker. Double push-button switches 11, 44 are arranged so as to open and close the circuitbreakers under manual control. The Specification describes similar dispositions applied to a modified system comprising two sets of bus-bars separately connected to the supply and to each feeder.
Patent GB-179459-A (GB)
Title: Improvements in or relating to handle controls for motorcycles or the like
IPC: B62M25/04
Filed: 1921-07-01
Abstract: 179,459. Pidcock, C. W. July 1, 1921. Control mechanism.-A Bowden-wire control device of the hind described in Specification 153,427, for motor-cycle handle-bars &c., comprises a casing 4 fixed to the handle-bar 1 and containing two or more rotary drums 5, 7 for operating the Bowden wires, one drum 5 being connected to the rotary grip 6, and each of the other drums 7 operated by a radially-projecting lever or knob 15, so as to enable the air control, for example, to be operated independently. Each drum is provided with a brake spring on its periphery, engaging the inner surface of the casing. The cable-receivers on the casing are slotted longitudinally to allow the drums and wires to be inserted in the casing together. The radial operating-levers 15 may project through slots in the casing 4. The closing-disc 9 may screw into the casing 4, or may be secured to the outer drum and provided with a circumferential groove 18 engaged by inwardly-projecting screws 14. The control device may be secured to the handle-bar by an end closure 20.
Patent GB-272152-A (GB)
Title: Improvements in heat exchange apparatus
IPC: F28D9/00
Filed: 1926-07-16
Abstract: 272,152. Muchka, J. June 7, 1926, [Convention date]. Heating air.-A heat. exchanger is composed of plate members, which can be slid out laterally, being loosely connected to one another by U-shaped edge-members. In the example, plates A constitute the main body of the exchanger, the edges being held by members C. Plates B, D are used to form the front and back of the exchanger. The plates are kept apart by reinforcing bars fitting in to the U-bends, the whole being secured by studs on the ends of the bars, which engage in holes in transverse strips.
Patent GB-566061-A (GB)
Title: Manufacture of arylacetic acid derivatives
IPC: C07D307/33
Filed: 1942-12-16
Abstract: a a -Bis-(b 1-bromoethyl)-arylacetic acids are prepared by action of HBr in aqueous solution, saturated at - 10 DEG  C., at raised temperature with a a -bis-(b 1-hydroxyethyl)-arylacetonitriles in which the hydroxy group may be etherified by alkyl, alkenyl or alkoxymethyl groups.  If HBr is replaced by HCl, lactones are obtained containing a chloroethyl group.  If aqueous HBr, saturated at 0 DEG  C. is used, the reaction product consists mainly of a -aryl-a -(b 1-bromoethyl)-butyrolactone.  By treatment with still lower concentrations of hydrogen halide, e.g. boiling with dilute HCl, a -aryl-(b 1-hydroxyethyl)-butyrolactone are obtained.  The a a -bis-(b 1-halogenoethyl)-arylacetic acids may be esterified and treatment of the esters with primary amines yields the esters of N-alkyl-4-aryl-piperidine-4-carboxylic acids.  The a -aryl-a  - (b 1 - halogenoethyl) - butyrolactones may be treated with primary or secondary amines to give N - substituted a  - aryl-a -(b 1 - aminoethyl) - butyrolactones.  Examples give the preparation of a a -bis-(b 1-bromoethyl)-phenylacetic acid, and its ethyl ester which by treatment with alcoholic methylamine gives N-methyl-4-phenyl-4-carbethoxy - piperidine, a a -bis-(b 1-ethoxyethyl) - phenylacetonitrile, a a  - bis - (b 1 - bromo - ethyl)-phenylacetic acid, a -phenyl-a -(b 1-bromoethyl) - butyrolactone, a  - phenyl - a  - (b 1 - N - methylaminoethyl) - butyrolactone, a -phenyl-a -(b 1 - N - piperidinoethyl) - butyrolactone, and a  - phenyl - a  - (b 1 - hydroxyethyl) - butyrolactone. Specification 550,970 is referred to.
Patent GB-497938-A (GB)
Title: Aerial forts
IPC: F41H11/04
Filed: 1937-06-28
Abstract: 497,938. Helicopters. JONES, T. B. June 28, 1937, No. 17902. [Class 4] A captive helicopter comprises a frame h connected to the ground by a cable i to which is hinged a second frame c carrying electric motors b driving lifting propellers a to make vertical flights from the ground. The frame c is provided with spaced downwardly extending arms carrying fins d and small aerofoils j. This frame is pivoted at s to the frame h carrying a cabin e connected to a winch on the ground by a cable i which also serves to convey electrical energy to the motors b from a dynamo or other source of energy on the ground. Cabin e may contain weapons and crew, the latter having means additional to those on the ground for controlling motors b. Normally, folded wings x are pivotally mounted on the frame h and are capable when released of swinging outwardly and upwardly. Cable i may be used for telephonic communication. The electrical energy may be tapped for heating clothing worn by the occupants of cabin e and for other purposes.
Patent GB-813444-A (GB)
Title: Improvements in the manufacture of chemical vacuum getters
IPC: H01J7/18
Filed: 1955-06-21
Abstract: 813,444. Discharge apparatus. GABBRIELLI, E. June 21, 1955, No. 17939/55. Class 39(1). Getters are made by evaporating successively upon a support a first layer of pure active metal and a second layer of a metal such as aluminium copper or nickel which does not chemically react with the first one. By subsequent heating, a stable alloy of the two metals may be formed ; and in a modification the alloy is directly obtained by depositing the two metals simultaneously on the support. The getters may be flat, square, oblong or circular discs with or without correspondingly shaped apertures; or one or two tapes 8, Fig. 6, may be mounted on a stirrup 9. Channel-shaped getters may be made by folding a strip down its centre line and the folded strip may be bent into square, Fig. 9, or circular forms. Alternatively the metal may be deposited in the already formed channel member 14, Fig. 11. The metal vapour may be obtained by a wire 18, Fig. 12, which passes into an oven 19, the vapour escaping through slit 17 to impinge upon strip 16. The successive portions of the wire 18 may carry deposits of the different metals which it is desired to deposit successively.
Patent GB-1462583-A (GB)
Title: Earth working vehicle having a stabilizer linkage
IPC: E02F3/76
Filed: 1975-04-30
Abstract: 1462583 Dozers CATERPILLAR TRACTOR CO 30 April 1975 [28 June 1974] 17973/75 Heading E1F A dozer blade 28 is stabilised against substantial lateral movement during vertical, tilting or angling movement of the blade relative to the vehicle frame 12 by a linkage comprising a first link 102 or 124 pivotally secured to the frame front end 26 for movement about a first axis 104 or 122, a second link 110 or 130 pivotally secured to the blade for movement about a second axis 112 or 132 transverse to the first axis and a universal joint 116 or 126 connecting the links to each other. The universal joint may be a ball joint.
Patent GB-280617-A (GB)
Title: Improvements in electron-discharge-devices
IPC: H01J27/26
Filed: 1926-07-19
Abstract: 280,617. Davies, L. J., and British Thomson-Houston Co., Ltd. July 19, 1926. Drawings to Specification. Vacuum tubes. - In order to eliminate space charge an electrode is provided which consists wholly or partly of a material possessing, when heated, the property of emitting positive ions which are solely those of a substance or substances non-gaseous at ordinary temperature; preferably a fused mixture of iron oxide with a small proportion of alkali or alkaline earth metal is used. The electrode may consist of a filament of platinum or tungsten coated with the material and mounted between the limbs of a V-shaped cathode. It is connected with terminals on a cap, and may be maintained at a positive potential. In a modification a part of the cathode, for instance a part near the positive leading-in wire, is coated with the ion-emitting material; the cathode thus emits electrons and positive ions. One or more grids may be provided. Specifications 208,728 and 232.978 are referred to.