baber/WOPTO huggingface dataset:
Patent GB-1528261-A (GB)
Title: Press for dewatering pulp or other fibrous material
IPC: B30B9/24
Filed: 1976-05-05
Abstract: 1528261 Dewatering press MASCHINENFABRIK ANDRITZ AG 5 May 1976 [14 May 1975] 18411/76 Heading BID [Also in Division D2] In a dewatering press, a web of material is passed between two endless screen belts 10, 11 and press rollers 15a, 15b, etc. are mounted on bearing blocks 14 of different heights. The blocks can be displaced horizontally and/or replaced by others of different heights so that the web can be adjusted to move on an ascending straight path (Fig. 6) or in a sinusoidal path (Fig. 2). The rollers are replaceable by rollers of different diameters. The blocks 14 may be in the form of wedge shaped units 23 (Fig. 6) the lower unit being pivoted at 24. The press may have another pair of rollers (19a, 19b) (Fig. 4, not shown) in which the lower roller is supported on springs 21 or can be adjusted by screws. By adjustment of the rollers 15 the press can be adapted to provide different types of contact pressure on the web to suit different suspensions or sludges.
Patent GB-308962-A (GB)
Title: Improvements in or relating to apparatus for grinding the rolls of ore crushing or like mills
IPC: B21B28/02
Filed: 1928-06-25
Abstract: 308,962. Krupp Grusonwerk Akt.- Ges., F. April 2, 1928, [Convention date]. Rollers, treating.-Apparatus for grinding or polishing the rolls of ore crushing mills &c. consists of an electric motor 4 slidably mounted on a bed 6 and traversed thereon parallel to the axis of the roll 1 or 2 by a spindle 7, movement of the motor towards and from the roll being effected by a spindle 8. The shaft 5 of the motor is at right-angles to the roll axis and carries a grinding-tool consisting of a disc 3 in which are secured abrasive blocks, and the disc is movable axially on the shaft, in order to yield to irregularities on the roll, under the action of a spring 11 located in a hood 18 slidable on a boss 13 on the housing 10 of the motor. The spindle 7 may be driven by independent gearing, by chain &c. gearing 19, 20 from the roll shaft 1<1>, or by means of pins at one end of the roll which engage a spring pressed lever carrying a pawl engaging a ratchet wheel on the spindle 7 ; the spindle 7 may have cross threads to effect reversal of the traverse.
Patent GB-1110228-A (GB)
Title: Pneumatic logical elements
Inventor: POTEPALOV JURY NIKOLAEVICH
IPC: F15C3/00
Filed: 1965-05-03
Abstract: 1,110,228. Fluid-pressure servomotor systems. GOSODARSTVENY NAUCHNO - ISSLEDOVATELSKY INSTITUTE ORGANICHESKIKH POLUPRODUKTOV I KRASITELI. May 3, 1965, No.18468/65. Heading G3P. [Also in Division F2] A system controlling the feed of reagent from a measuring vessel 11 to apparatus 9 having a draw off valve 17 imprises logic devices 20, 21, 22, 23 (See Division F2) controlling valves 13, 17, 19 devices 14, 15 provide a pressure proportional to the level in vessel 11 and apparatus 15. Devices 20, 21 are supplied with pressure to their middle ports. With the apparatus 9 empty, valve 17 closed and vent valve 19 open, reagent fills the vessel 11 to a predetermined level when the devices open valve 13. Reagent passes to apparatus 9 after which valve 13 closes and valve 17 open to allow draw-off.
Patent GB-262353-A (GB)
Title: Improvements in luncheon or picnic boxes or cases
IPC: A45C11/20
Filed: 1926-07-23
Abstract: 262,353. Keene, J. A., and May, W. F. July 23, 1926. Folding or knockdown boxes; lids. - A luncheon or picnic case which when opened out is adapted to serve as a table, Fig. 4, comprises sides b, b', Fig. 2, hinged to a base d, divided ends c<1>, c<2>, rigidly secured_ to the sides, and a lid e hinged to the side b<1> and provided with ends i adapted to take into recesses j formed in the ends. The end parts are rebated at c<3> to enable them to fit together closely and are detachably connected internally by hooks k. Fasteners m secure the lid end pieces to the ends of the case. The lid has a pivoted handle n adapted to be turned into a recess.
Patent GB-904706-A (GB)
Title: Isourea derivatives
IPC: C07D295/215
Filed: 1960-05-25
Abstract: The invention comprises aromatic oalkyl-or substituted alkyl-isoureas of the general formula <FORM:0904706/IV (b)/1> in which Ar stands for an unsubstituted or substituted phenyl radical, Alk stands for an aliphatic hydrocarbon radical which may be substituted and R and R1, which may be the same or different, are hydrogen atoms or alkyl, aryl or cycloalkyl radicals or R and R1, together with the nitrogen atom, may form a ring, which may be interrupted by hetero atoms, said ring being 5- or 6- membered and processes for the preparation thereof wherein (a) an arylimino-halocarbonic acid amide of the general formula <FORM:0904706/IV (b)/2> in which Ar, R and R1 have the same meanings as above and Hal is halogen atom is reacted with an alkanol (b) an arylimino-halocarbonic acid alkyl ester of the general formula <FORM:0904706/IV (b)/3> in which Ar, Alk and Hal have the meanings given above is reacted with ammonia or a primary or secondary amine or (c) an N-arylurea dihalide of the general formula <FORM:0904706/IV (b)/4> wherein Ar, R, R1 and Hal have the meanings given above is reacted with an alkali metal alcoholate.  Representative of specific isoureas of which the preparation is described are those of the given general formula in which Ar is phenyl, 4-chlorophenyl, 4-bromophenyl, 2-chloro-4-methylphenyl and 2, 4-dichlorophenyl, Alk is methyl, ethyl, propyl, R is hydrogen, methyl, ethyl and butyl, R1 is methyl, ethyl, propyl and butyl, or the NRR1 group is hetero-cyclic and is piperidine, morpholine or pyrrolidine residue.  The products are used as active ingredients in herbicidal compositions (see Group VI). Arylimino-halocarbonic acid imides for use as starting materials are obtained by reacting aryl-isocyanide-dihalides with ammonia or a primary or secondary amine e.g. p-chlorophenyl isocyanide dichloride with dimethylamine.  Urea-dihalides for use in the process are obtained by reacting ureas with phosphorous pentachloride.ALSO:Herbicidal compositions comprise as active ingredient a compound of the general formula <FORM:0904706/VI/1> in which Ar stands for an unsubstituted or substituted phenyl radical, Alk stands for an aliphatic hydrocarbon radical which may be substituted and R and R1, which may be the same or different, are hydrogen atoms or alkyl, aryl or cycloalkyl radicals or R and R1, together with the nitrogen atom, may form a ring, which may be interrupted by hetero atoms, said ring being 5- or 6-membered (see Group IV (b)) and a solid or liquid carrier or diluent.  A herbicide is described comprising an aqueous dispersion of a mixture of N-phenyl-N1N1-dimethyl - O - methyl - isourea, dimethyl formamide and nonyl phenol-polyglycol ether.
Patent GB-796346-A (GB)
Title: Rock drill cutting insert of hard metal
IPC: E21B10/58
Filed: 1955-06-27
Abstract: 796,346. Percussive tools. SANDVIKENS JERNVERKS AKTIEBOLAG. June 27, 1955 [June 28, 1954], No. 18553/55. Class 124. A rock drill cutting insert consists of at least one zone of high wear resistant hard metal constituting the whole or the greater part of the initial cutting edge and at least one zone of tough hard metal constituting the remainder of the initial cutting edge or of the cutting edge after wear has taken place, the tougher zone being formed so that it increases in crosssectional area from the cutting edge, and the boundary line between the zones making an acute angle with the sides of the insert at least at the outer ends of the boundaries. As shown, the high wear resistant zone 12 may be wedgeshaped and extend to the bottom of the insert or the bottom of the zone may be curved and may extend only part of the way to the bottom. The dotted lines b-b and c-c indicate the relative amounts of wear resistant and tough hard metal after wear has taken place. The tough zone 13 may be further subdivided into zones of differing toughness, the toughest zone being farthest from the cutting edge. Various arrangements of wear resistant and tough zones are described.
Patent GB-613596-A (GB)
Title: Improvements in feeder mechanism for circular knitting machines
IPC: D04B15/58
Filed: 1946-06-20
Abstract: 613,596. Knitting-machines. BENTLEY ENGINEERING CO., LTD., and PEBERDY, R. June 20, 1946, No. 18561. [Class 74(ii)] A splicing or other yarn feeder in a circular machine moves into and out of the feeding position about an axis parallel to the axis of the needle circle and is slidable in the direction of its length towards and away from the needle circle. The feeder arm 2 is pivoted at a pivot block 5 attached to an arm 6 secured to a bracket 4 and pivoting about a vertical axis 15. One end of the arm 2 slides in a guide block 3 pivoting in the bracket 4. Stops on the bracket 4 limit movement of the arm 6, which movement is imparted through a push rod 10 by a bell crank lever 13, arms 13a, 13b of which are acted upon by adjustable cams 16, 17. A spring 11 draws back the arm 6 as the lever 13 withdraws, moving the eye 7 of the feeder arm 2 from the feeding position to the non-feeding position (indicated in dotted lines) along a line FP whereupon the thread is cut and trapped by a trapper and cutter 8. The invention is described in connection with an opposed needle cylinder machine.
Patent GB-1037543-A (GB)
Title: Modulators and demodulators
Inventor: WILLIS JOHN GORDON
IPC: H03C1/54
Filed: 1963-05-10
Abstract: 1,037,543. Amplitude modulation systems; detecting circuits. STANDARD TELEPHONES & CABLES Ltd. May 8, 1964 [May 10, 1963], No. 18568/63. Headings H3R and H3T. In a balanced modulator as in Specification 808,396 having a symmetrical transistor in shunt or in series between modulation input and output transformers 5, 7, the modulated output is amplified at 8, rectified at 21, and fed back as D.C. bias to the transistor base in series with the carrier input at 15, switching the transistor on and off so that the relative duration of the on and off periods of the transistor is varied, and automatic gain control of the output sideband signal level produced. Capacitor 20 tunes the output transformer primary to accept carrier frequency sidebands and reject modulation frequencies. Capacitor 26 tunes the modulation transformer secondary over the modulation frequency band. Series inductors 10 and shunt capacitors 25 form a combination, tuned to the carrier frequency and produce a damped carrier frequency half-wave when the transistor is non- conductive. When the transistor again conducts the voltage across capacitors 25 is zero and no energy is lost. One sideband may be filtered out. A D.C. component may be added to the modulation input so that carrier output is also produced. If two symmetrical transistors are used as in Specification 808,396, the same derived D.C. bias is applied to both transistors. Two ordinary transistors may be connected in parallel to form a symmetrical transistor equivalent. The circuit may act as a demodulator if modulated carrier is applied as input instead of modulation, and carrier applied as before at 15, 16.
Patent GB-104865-A (GB)
Title: Improved Process for the Production of Block Fuel.
Inventor: OTTO WALKER
IPC: C10L5/10
Filed: 1916-12-29
Abstract: 104,865. Walker, O. March 17, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Composition fuel.-Briquettes are made from peaty earth, humus, swamp ground, or other earth together with pitch, coal-tar, or wood-tar. Cinders, ashes, scoria, coal or coke dust, or sawdust, may also be added, together with sulphuric or nitric acid. In one example, 100 kilos of cinders are mixed with 10 kilos of pitch. The mixture is heated and 3 kilos of coal-tar and 800 grm of sulphuric acid added. The mixture is then moulded and pressed into briquettes. In another example, 66 kilos of cinders are mixed with 34 kilos of turfy earth, 10 kilos of pitch, 3 kilos of coal-tar, and 800 grms. of sulphuric acid. In a further example, 50 kilos of peaty earth are mixed with 35 kilos of sawdust, 8 kilos of coal-tar, 3 kilos of pine resin, 1 kilo 500 grm. of nitric acid, and 400 grm. of sulphuric acid.
Patent GB-873882-A (GB)
Title: Sealing of photographic roll films
Inventor: TEDDER WILFRED EDGAR
IPC: G03C3/02
Filed: 1959-06-01
Abstract: 873,882. Photographic roll film. ILFORD Ltd. May 19, 1960 [June 1, 1959], No. 18657/59. Drawings to Specification. Class 98(1) A photographic roll film is sealed by a strip of paper which is provided near each end on different faces with a pressure sensitive self adhesive patch; one end of the strip is placed under one end of the film and the strip is passed round the roll and is then stuck to itself. A tab, free from adhesive, may be provided at one end of the strip to be gripped by the user.
Patent GB-1311681-A (GB)
Title: Punching and stripping mechanism
IPC: B23D15/14
Filed: 1970-04-20
Abstract: 1311681 Punching; strippers PIERCE-ALL MFG Ltd 20 April 1970 [5 May 1969] 18734/70 Heading B3W Hydraulic fluid is supplied to a punch cylinder 1 and 16 a cylinder 5 of a piston 7 driving a spring-biased hold down and stripper member 3 via an adjustable valve 10, 11 with flow and return connections 13 and 15 respectively to a supply tank (not shown). A flow restrictor 20 is provided in the conduit 19 leading to the upper end of the cylinder 1 and a check valve 22-24 in the line 21 leading to the stripper cylinder 5. A return line to the tank has a control valve 27, 28 therein. To initiate a punching operation the valve rotor 11 is moved to the Fig. 2 position in which fluid is supplied to the upper ends of cylinders 1 and 5, the flow restrictor 20 causing greater flow to the stripper cylinder 5 so that the stripper member 3 holds a workpiece 34 against a press table 35 before the punch enters the workpiece. For the return stroke, the rotor 11 is rotated to a position in which fluid is supplied only to the underside of punch piston 8. Due to the check valve 22-24 pressure in the stripper cylinder is maintained until, after the punch has been removed from the workpiece, the valve 27, 28 is opened by, e.g. electrical means including limit switches or through a releasable mechanical coupling (29), (30), Fig. 1 (not shown), with the punch piston-rod 9. The spring 4 raises the stripper member 3 and the valve 27, 28 is closed. Alternatively, the stripper member 3 can be raised hydraulically and/or the punch by spring pressure. The flow restrictor may be omitted, the increase in resistance to the punch before workpiece penetration ensuring sufficient pressure for the stripper member 3 to engage the workpiece before the punch enters the workpiece. Alternatively, the volume of the cylinder 1 and the size of conduit 19 may be selected to ensure that the stripper member 3 engages the workpiece before or at approximately the same moment as the punch 2.
Patent GB-1242397-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: BROWN D C
IPC: F28F1/12
Filed: 1967-09-13
Abstract: 1,242,397. Heat exchangers. ASSOCIATED ENG. Ltd. 6 Sept., 1968 [13 Sept., 1967; 19 April, 1968, Nos. 41849/67 and 18741/68. Heading F4S. A heat exchanger, particularly a radiator core, is made from metal foil (i.e. sheet material not thicker than 0À012 inch) and consists of members 1, e.g. tubes spaced apart to define passages therebetween which are occupied by transverse fins 5 having areas 6 which extend generally parallel to and are bonded to the walls of the members 1, adjacent fins converging towards each other as shown. The elements of the heat exchanger are bonded together by an adhesive in which case the elements may be pre. coated with the adhesive. The fin surface may be dimpled or louvred (Fig. 3). The tubular members are preferably made from two sheets of the foil separated by edge spacers of metal or plastics material (Fig. 4b); or the sheet edges may be suitable shaped as shown in Fig. 2 or alternatively in Fig. 4a, not shown. In the core shown the tubular members 1 extend between tube plates 8 of thicker sheet material and the sides of the core are protected by plates 9 bonded to the fins and to the tube plates. Header tanks (not shown) which may be of metal or of plastics material are bonded to the tube plates 8. Reference has been directed by the Comptroller to Specification 1,116,620.
Patent GB-319817-A (GB)
Title: Improvements in and relating to combined reciprocating and turbine engine installations
IPC: F01K7/02
Filed: 1928-06-28
Abstract: 319,817. Parsons, Sir C. A., and Cook, S. S. June 28, 1928. Shaft couplings.-In a steam power plant suitable for ship propulsion comprising a set of reciprocating engines exhausting into a turbine the power of which is transmitted to the reciprocating engine shaft, a resilient drive employed in the transmission is associated with means such as springs for absorbing considerable amounts of energy. In the lay-out shown in Fig. 2, the reciprocating engine 2 exhausts into the turbine 4, or directly into a condenser 5 by way of a changeover valve 6. The turbine shaft 8 is connected to the shaft 11 by double reduction gearing '9, 12, 14, 15 and the resilient drive referred to above may be inserted at R, or at R<2>, or at R<3>. Modified forms of lay-out are described. The resilient drive R &c. may be of the type described in Specification 184,890. Fig. 4 shows a modified form of coupling combined with one of the gear wheels 18. The friction discs 16, 17 which are splined alternately to the hub 19 and the outer part respectively, and between which the energyabsorbing springs 21 are arranged, are drawn together by adjustable springs 25 surrounding axially arranged rods 22. A slipping coupling as described in Specification 275,339 may also be provided to take up severe shocks. Specification 13019/06 also is referred to.
Patent GB-927084-A (GB)
Title: Improvements in or relating to toggle switches
IPC: H01H23/06
Filed: 1959-06-02
Abstract: 927,084. Snap-action switches. MINNEAPOLIS - HONEYWELL REGULATOR CO. June 2, 1959 [June 2, 1958], No. 18826/59. Class 38 (5). A toggle switch has a seal 44 seating on the toggle arm 42 and in wiping contact with the inside of the bushing 18, the outside axial dimension of the seal being greater than its internal axial dimension. In an embodiment (not shown), the seal has a flange only.
Patent GB-633769-A (GB)
Title: Improvements in frequency converters
IPC: H02M5/32
Filed: 1946-06-26
Abstract: 633,769. Frequency changing. BRITISH THOMSON-HOUSTON CO., Ltd. June 26, 1946, No. 19133. Convention date, June 27, 1945. [Class 38 (ii)] In a frequency converter, a condenser in series with the primary of a transformer across an A.C. supply is periodically charged and discharged to produce A.C. of a different frequency in the transformer secondary. In the single-phase case, Fig. 2 (not shown), a vibrating switch or synchronously-driven commutator alternately makes the primary circuit and breaks it while short-circuiting the condenser. Fig. 3 shows connections for the three-phase case, in which alternate segments 22, 22<1>, 24, 241 of a commutator are connected to appropriate slip-rings 18, 19, 20 fed from the supply 15, 16, 17, the other segments 21, 21<1>; 23, 23<1>, being connected together in pairs. When the commutator and slip-rings are rotated by motor 14, brushes 25, 26 engage the segments; upon contact with segments 22, 22<1>; 24, 241 &c., voltages represented by vectors 29 ... 34 in Fig. 4 are connected across the primary of transformer 1 and condenser 2, which is charged, and upon contact with segments 21, 21<1>; 23, 23<1> the condenser is discharged. Rocking of the brushes may provide regulation.
Patent GB-237633-A (GB)
Title: Improvements in or relating to dental spittoons
IPC: A61C17/14
Filed: 1924-09-09
Abstract: 237,633. Pieper, A. F. Sept. 20, 1923, [Convention date]. Spittoons.-The tumbler holder 39 is supported on a hollow waste pipe 25 pivoted on the bowl discharge fitting, and is provided with supporting webs 46. A removable discharge spout 42 with a screen 44 rests on a gasket 40 and forms a trap. A splash guard 48 is adjustably supported by the supply pipe 47, Specification 222,114 is referred to.
Patent GB-1204052-A (GB)
Title: Improvements in or relating to soft-solder coated wire, strip or tape
Inventor: KNIGHT JAMES RICHARD
IPC: C25D5/10
Filed: 1968-04-23
Abstract: 1,204,052. Electro-depositing lead, tin. ENGLEHARD INDUSTRIES Ltd. April 22, 1969 [April 23, 1968], No.19216/68. Heading C7B. Soft-solder coated conductive wire, strip or tape, e.g. a lead of an electrical device such as a resistor or printed circuit, is prepared by successively electro-depositing on to the surface of the wire, strip or tape at least one layer of Pb or Pb-Sn mixture, and at least one layer of Sn or Sn-Pb mixture, preferably a Pb layer than a Sn layer. E.g., a length of Cu wire, electrolytically cleaned in an aqueous solution containing 7g/l each of NaOH and Na3 PO4 and 14g/l of Na2 CO3, rinsed, pickled in 25% HBF4 solution, and again rinsed, was passed through a first plating tank having pure Pb anodes and containing an electrolyte comprising 200g/l each of Pb (BF4)2 and HBF4 and 12g/l resorcinol, then a second plating tank having pure Sn anodes and containing an electrolyte comprising 200g/l of Sn(BF4)2, 150g/l of HBF4 and 12g/l resorcinol; the overall coating composition varied from 95%Pb: 5%Sn to 40%Pb: 60%Sn depending on the C.D. used in each tank.
Patent GB-381953-A (GB)
Title: Improvements in the automatic control of glow discharge tubes in recording sound on film
IPC: G11B7/00
Filed: 1931-07-03
Abstract: 381,953. Valve amplifying circuits. CHAMBERS, W. A., Lullingstone, Reigate Road, Ewell, Surrey, and COX, F. J. G., 61, Brondesbury Road, London. July 3, 1931, No. 19247. [Class 40 (v).] In making photographic sound records by a glow discharge tube having its intensity varied by the sounds and further automatically controlled, so that when no sound, or sound of low intensity, is being recorded the discharge is such that the resulting negative record produced will make a positive of the necessary density to mask disturbing noises normally caused by imperfectness in the record and microphone noises, the control means comprises a thermionic valve whose bias is influenced by separate means one of which determines the limits of variation of the mean intensity of the recording.lamp and the other the variation of the mean level of intensity. As shown, an audio current to be-recorded is supplied at 1 and divided so that a part 2 passes through the discharge tube 6 and a control valve 8 which is negatively biased from a suitable source such as an alternating current supply 11 fed through a rectifier 12, potentiometer 10 and resistance 9 so that a certain glow is maintained in the tube 6, normally energized at 15, to expose the film to the necessary degree when no sound or sound of small intensity is being recorded. The other part 3 of the audio current is led to a diode valve 4 or contact rectifier, and if desired a filter 5, and is applied as a further but opposite and variable bias to the grid of the valve 8, the circuit being designed so that the valve 8 is in a saturated condition when the upper limit of modulation due to the audio frequency current is reached. A capacity 14 governs the speed at which the control follows the modulation. Specification 330,956, [Class 40 (v), Wireless signalling &c.], is referred to.