baber/WOPTO huggingface dataset:
Patent GB-627127-A (GB)
Title: Improvements relating to pit and like props
IPC: E21D15/12
Filed: 1947-05-05
Abstract: 627,127. Pit props. STEWARTS & LLOYDS, Ltd., and SPENCER, R. W. May 5, 1947, No. 12028. [Class 20(ii)] A pit prop comprises a main tubular part 1, a member 5 slidable in a sleeve 2 at one end of the part 1, a pair of abutments 9, 8 respectively secured to the part 1 and the member 5 and a rotatable cam 11 having a spherical or cylindrical surface 13 supported on the abutment 9 and a pair of flat surfaces 14, 15 which are mutually at right angles and at different radial distances from the axis of the cam for co-operation with the abutment 8. The cam is controlled by a shaft 12 the ends of which are secured to a pair of side members 18 interconnected to form a shackle to which is secured a sleeve 20 for a crow bar by which the cam is rotated from the position shown in broken lines to that in which the surface 15 supports the abutment 8 with the member 5 extended. The cam may be held in the supporting position by a catch 18a on the shackle engaging a bolt 10a. To withdraw the prop a chain is hooked into a hole in the sleeve 20 and pulled, and when the cam is thus rotated rapidly, the slidable member 5 is momentarily unsupported and falls freely on the cam face 14.
Patent GB-1453394-A (GB)
Title: Phenylpropylamine derivatives
IPC: A61K31/135
Filed: 1974-03-19
Abstract: Compounds of the formula <IMAGE> in which R<1> and R<2> are identical or different and represent hydrogen atoms, hydroxyl groups or methoxy radicals, R<3> is a phenyl radical and R<4> is an alkyl radical having 1 to 6 carbon atoms, R<5> represents an alkyl radical having 1 to 6 carbon atoms or a hydroxyalkyl radical having 2 or 3 carbon atoms and R<6> denotes a hydrogen atom, an alkyl radical having 1 to 6 carbon atoms or a hydroxyalkyl radical having 2 or 3 carbon atoms, with the proviso that in cases in which R<1> and R<2> are hydrogen atoms, R<4> is not a methyl radical, R<5> is not an alkyl group and R<6> is neither a hydrogen atom nor an alkyl group, are obtained by alkylation of corresponding 3-phenylpropylamines. The compounds and their salts with acids are distinguished, with very low toxicity, by potent analgesic properties; they also have an antipyretic and cough-relieving action.
Patent GB-1001984-A (GB)
Title: Improvements in and relating to phosphates
Inventor: BOOKEY JOHN BERNARD
IPC: C01B25/40
Filed: 1963-03-27
Abstract: A mixture of ammonium phosphates defined in the Specification as ammonium polyphosphate, is prepared by feeding aqueous phosphoric acid containing from 45% to 60% P2O5 by wt. and ammonia gas to a body of liquid comprising said ammonium polyphosphate maintained in a reaction zone at 170-250 DEG  C., when water is driven off and the ammonium polyphosphate is withdrawn continuously from the reaction zone.  The process is preferably operated so that it is auto-thermal, i.e. all the heat required by the process is liberated by the chemical reaction.  The process may be operated at atmospheric or superatmospheric pressure, e.g. 200 lbs. p.s.i.g.  The composition of the product may be controlled by controlling the residence time in the reaction zone. The process of the invention may be initiated by introducing a mixture of phosphoric acid containing at least 45% P2O5 by wt. and solid NH4H2PO4 into a reaction zone and then passing in wet process phosphoric acid containing at least 45% P2O5 and ammonia continuously, allowing the temperature to stabilize at 170-230 DEG C. and withdrawing ammonium polyphosphate continuously. Alternatively, the reaction may be initiated by heating the reaction product of wet phosphoric acid and ammonia until the temperature of the mixture attains 170-230 DEG  C. and then feeding ammonia and wet phosphoric acid continuously to maintain this temperature and continuously withdrawing the polyphosphate produced.  The ammonium polyphosphate withdrawn as a melt is rendered crystalline by passing it while molten into a powerful mixing device, e.g. a blunger, and mixing it with previously obtained crystals.  The N: P2O5 ratio by weight of the polyphosphate produced falls within the range of 11.5: 65.0 to 16:55.0.  The Specification defines ammonium polyphosphate as a mixture comprising condensed phosphates, e.g. ammonium pyrophosphate, ammonium tropolyphosphate and/or higher polymers, together with some ammonium orthophosphate, where the mixture contains at least 10% by weight of the pyrophosphate, tripolyphosphate and/or higher polymers and at most 80% thereof.
Patent GB-203019-A (GB)
Title: Means for automatically adjusting brake bands on motor vehicles
IPC: F16D65/56
Filed: 1922-05-02
Abstract: 203,019. Michael, B. J. May 2, 1922. Compensating for wear.-An automatic adjusting device for band brakes 5, such as used with epicyclic transmission gearing for motor vehicles, comprises a nut 11 screwed on the end of the brake actuating rock-shaft 9 and a washer 14 arranged between the nut 11 and the band lug 6. The nut has ratchet teeth 13 co-operating with a spring- pressed pawl 16 on the washer which is prevented from rotating by a projection 15 engaging the gap in the lug 6. A collar 18 splined to the shaft 9 so as to rock therewith is held against the nut 11 by springs 22, the parts being connected by interengaging ratchet teeth which compel them to move together when the shaft is rocked to apply the brake, but permit the collar to return independently of the nut when the shaft is returned to the " brakes-off position. In operation, if undue wear has taken place, the pawl 16 rides over a tooth of the ratchet 13 when the brake is applied, and holds the nut 11 during the return stroke, thus causing the nut to be screwed along the rock shaft 9. The shaft is moved axially against the action of the holding-off spring 12, when rocked, by cam surfaces.
Patent GB-1472688-A (GB)
Title: Plug and socket arrangement for a multi-conductor flat electric  cable
IPC: H01R12/77
Filed: 1975-03-24
Abstract: 1472688 Electric couplings WALTER KELLER AG 24 March 1975 [29 March 1974] 12259/75 Heading H2E A plug and socket arrangement for a multiconductor flat cable 14 comprises, a socket having a U-shaped housing 3, which is passed over a retainer 17 having a stripped portion 16 of the cable lopped over it, and having projections 19, 20 which extend between the bared conductors and snap into openings 6, 7 in the side walls 4, 5 of the housing, and a plug 2 having pins 11, 12 which are inserted through holes 9, 10 to contact the conductors, the latter being biased towards the plug pins by elastic strips 22, 23 in the retainer.  The pins are arranged in two mutually staggered rows of unequal number (Fig. 11, not shown) with corresponding openings in the socket housing 3. The socket housing and the retainer can both be cut from profiled rods to accommodate the desired number of conductors. Both ends of the tape cable may extend out of the socket (Fig. 2, not shown). An additional row of projections 21 may be provided on the retainer 17. Pins 11, 12 may also be directly connected into a printed circuit.
Patent GB-1469438-A (GB)
Title: Hinges
IPC: E05D7/10
Filed: 1975-01-31
Abstract: 1469438 Tailgate hinges IHW ENG Ltd 31 Jan 1975 [20 March 1974] 12264/74 Heading E2F  A hinge for a vehicle tailgate comprises a first part 7 to which is secured a pin 8 and a second part 6 formed with slots 9 which receive the pin for pivoting but allow the two parts to be separated for removal of the tailgate; a nose portion 10 extending partially over the slots. As shown the first part comprises a U-shaped member 6 which is secured to the tailgate in use and the second part is an L-shaped member 7 designed to be mounted on the vehicle chassis and which is welded between the ends of pin 8. The slots in member 6 are designed to engage the ends of the pin in the fully open and closed positions of the tailgate and to allow it to be removed when halfway between the two i.e. in a generally horizontal position.
Patent GB-117978-A (GB)
Title: An Improved Internal Combustion Engine.
Inventor: SCOTT BATEMAN DAVID
IPC: F01L5/06
Filed: 1917-08-28
Abstract: 117,978. Scott, B. D., and Tate, W. H. Aug. 28, 1917. Regulating; valves.-In a four-stroke-cycle engine having a reciprocating sleeve valve b which controls exhaust ports c and terminal air admission ports d, fuel is admitted during the outstroke of the piston and prior to the opening of the air inlet ports, through an injector h. A throttle valve g controls the cylinder port d. According to the Provisional Specification, the exhaust ports remain open during the first portion of the suction stroke for the admission of air. When the air supply is cut off, a partial vacuum is created in the cylinder and combustible mixture is admitted through terminal inlet ports at the end of the stroke. A rotary valve or one having a combined rotary and oscillating movement may be used.
Patent GB-632235-A (GB)
Title: Improvements in or relating to electrical heating-cables
IPC: H05B3/56
Filed: 1947-05-08
Abstract: 632,235. Electric heating resistances. SLETNER, P. G. May 8, 1947, No. 12475. Convention date, May 15, 1942. [Class 39 (iii)] A continuous electric heating cable comprises two or more spaced apart current conductors 1 surrounded by semiconducting material 2, the whole being enclosed in a sheath of insulation 3 and an outer sheath of lead 4. If desired the current conductors may be divided into branches spaced from each other and electrically connected in parallel. The semi-conducting material may be subjected to a mechanical or a chemical operation to adjust its conductivity to a desired value. The cable is suitable for heating rooms and for drying purposes.
Patent GB-1537150-A (GB)
Title: Electronic ignition timing adjusting apparatus for internal combustion engines
IPC: F02P5/155
Filed: 1976-03-29
Abstract: 1537150 Ignition systems NIPPON SOKEN Inc 29 March 1976 [14 April 1975] 12517/76 Heading F1B An electronic ignition timing system for an I.C. engine acts below a predetermined engine speed to effect ignition at a predetermined point and, above the predetermined speed, by charging and discharging a capacitor so that ignition is effected when the capacitor has discharged to a predetermined value. As shown, an angular position detecting means 100 includes two position sensors 102, 103 co-operating with an engine-driven rotor disc 101 to define two fixed points at which respectively changing of a capacitor 344 from a constant current circuit 330 is initiated, and charging is terminated and discharging by an engine condition current generator 400 producing a current indicative of engine condition, e.g. speed, inlet manifold depression, is initiated. A second signal from the first probe 102 is utilized to define a third position at which ignition is effected below the predetermined engine speed.
Patent GB-950240-A (GB)
Title: Vehicle with stabilizer system
IPC: B60G17/033
Filed: 1961-04-07
Abstract: 950,240. Preventing lateral canting. E. BOBARD. April 7, 1961 [April 9, 1960], No. 12558/61. Headings B7D and B7H. A vehicle with two main wheels in tandem and two opposed side wheels has a lateral stabilizing system comprising means to sense vertical movement of one side wheel relative to the vehicle frame and power means, responsive to the sensing means, to produce a relative movement of the other side wheel to restore the main wheels to a position perpendicular to the plane of the ground. The tractor in Figs. 1 and 2 has a frame 1 with tandem main wheels 2, a sensing wheel 8 and a compensator wheel 17 suspended from down tubes 4 and 14 respectively by links 6 and 15, a vertical sensing member 9 and a power means 18. The upper end 10 of member 9 is formed as a valve spool in valve member 11. Normally, cross-tube lug 12 rests on shoulder 9a of member 9 when pipe 21 from the actuating member 18 is connected through the valve and pipe 22 to a fluid reservoir, but when the tractor tilts to the right, wheel 8 and the valve spool drop and pipe 23 from a pressure fluid pump is then connected through the valve to pipe 21 to depress piston 18a in cylinder 19 and extend member 18 to restore the vehicle balance. In a modification similar sensing means are provided on both sides of the vehicle each controlling power means on the other side and the power means on the two sides may be connected so that as one is extended the other contracts. In a second construction (Figs. 4 and 5), the tractor side wheels 25a, 25b are mounted on the cranked ends of axle tube 27 which is normally maintained against the upper ends of vertically elongated slots 28a, 28b in the frame side members by tension springs 29. When the tractor tilts to the left, Fig. 5, the axle tube 27 is rotated clockwise relative to the frame and closes electrical contacts 35a which actuate a valve 34 to supply fluid to cylinder 30 which rotates the axle tube lowering the side wheels and restoring the vehicle balance. In an alternative construction the axle tube is replaced by two aligned cranked half axles connected together at the centre so that they rotate in opposite directions.
Patent GB-459343-A (GB)
Title: Improvements in or relating to electrical band-pass filters for wireless receiving sets
IPC: B21D9/16
Filed: 1936-05-04
Abstract: 459,343. Impedance networks. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. May 4, 1936, No. 12560. Convention date, July 26, 1935. [Class 40 (iii)] A band-pass filter having variable bandwidth is so constructed as to be free from the defect, shown in Fig. 2a and due to capacity inherent in the coils, which consists in a change in the pass range asymmetrical with respect to the mid frequency fo. The mutually coupled inductances 1, 2, are conductively in series with further inductances 4, 3 respectively, and these are magnetically coupled to the opposite inductances 2, 1. The coupling between the circuits, and consequently the band-width, can be altered by reversing the connections of the subsidiary inductances 3, 4 separately or simultaneously by means of a switch, and in this way three resonance characteristics a, b, c, Fig. 2b can be obtained if the circuits are symmetrical, but the number of resonance characteristics can be increased to four by making the coupling between 1 and 3 unequal to that between 2 and 4. The relative positions of the coils are adjusted during manufacture but thereafter are fixed ; change of band-width does not, therefore, alter the inherent capacitive coupling of the parts, and for this reason the asymmetrical effect shown in Fig. 2a is avoided.
Patent GB-595623-A (GB)
Title: A combined coal cutting and removing machine
IPC: E21C27/02
Filed: 1945-05-18
Abstract: 595,623. Endless-chain conveyers. ASHINGTON COAL CO., Ltd., and PUMPHREY, C. E. May 18, 1945, Nos. 12576 and 32600. [Class 78(i)] [Also in Group XXI] Means for removing from a coal face coal previously undercut, sheared and wedged from the face comprises an elevator plough 38 secured to the coal cutting machine and carrying hooked elevator chains 39 driven from the machine through a plug 37 and moving the coal to a face conveyer.
Patent GB-106211-A (GB)
Title: Improvements in Pile Cutting Mechanism for Looms.
Inventor: HOLLINGWORTH EDWARD
IPC: D03D39/24
Filed: 1916-09-07
Abstract: 106,211. Hollingworth, E., (Crompton & Knowles Loom Works). Sept. 7, 1916. Pile-fabric looms.-In a loom in which pile loops are formed over grooved transverse wires, pile-cutting mechanism is provided comprising a rotatable disk having a number of cutting-edges to co-operate with the grooves in the pile wires and mounted on an arm pivoted to a carrier, which is adapted to be reciprocated on a fixed bar across the loom, and means to rotate the disk intermittently to move one cutting-edge to inoperative position at the -end of its cutting stroke and to move the succeeding edge to operative position at the beginning of the next cutting stroke; means for sharpening the edges when in an inoperative position are provided. As shown, a carrier 30 is adapted to slide on a guide 20a on an adjustable fixed bar 20 and is connected by a link and a lost-motion connexion with the pile-wire inserting and withdrawing device. A spring-pressed arm 35 is pivoted to the carrier and on it is mounted a disk 43, with cutting-edges 43a, 43b, 43<c>, 43<d>, and a ratchet-wheel 40, with which cocperates a detent spring 45 and an operating-pawl 50 pivoted to an arm of a member 53, which is pivoted on a boss on the arm 35 and is acted upon by a spring 65. At the end of the cutting stroke towards the left side of the loom, Fig. 3, the arm 54 of the member 53 strikes an adjustable bar 56 and the member 53 is turned to cause the pawl to operate upon the ratchet-wheel 40, so that the cutting-edge 43a is moved an eighth of a revolution into inoperative position. At the end of the return strokes, the arm 55 of the member 53 strikes a bunter 57, and another movement of the disk 43 turns the cutting-edge 43b into operative position. The arm 35 is yieldingly held with a projection 35<c> thereon in contact with the front face of the pile wire 70, and this device together with a back guide for the cutting-edges ensures the proper position of the cutting-edges in the grooves of the pile wires. Sharpening of the cutting-edges when in the uppermost position is effected by abrasive surfaces 84 on plates 82, 83 mounted on a supporting-rod 80 and pressed towards stops 85 by adjustable. springs 87, so that the abrasive surfaces act upon the opposite faces of the cutting-edge, which is moved between them.
Patent GB-921069-A (GB)
Title: Fungicidal compositions
IPC: C07D241/44
Filed: 1961-04-07
Abstract: A fungicidal composition comprises at least one known fungicidal agent and at least one 2,3-dimercapto-1,4-quinoxazoline, optionally substituted in the benzene nucleus by halogen, alkyl, alkoxy, nitro, carboxylic acid or sulphonic acid groups or a cationic salt thereof. Specified known fungicidal agents are N-trichloromethyl thio-tetrahydro-phthalimide, zinc ethylene-bisdithiocarbamate, zinc - dimethyl - dithiocarbamate, tetramethyl - thiuram - disulphide, 1-chloro - 2,4 - dinitronaphthalene or pentachlorophenol.  Specified salts of the 2,3-dimercaptoquinoxazolines are those formed with alkali metals e.g. sodium, ammonia, zinc, ferric iron, tin, manganese, nickel, mercury and primary, secondary or tertiary amines e.g. dimethylamine, ethylamine, butylamine, hexylamine, dihexylamine, dodecylamine, stearylamine and methylstearylamine and preferably amines containing aliphatic radicals of at least 8 carbon atoms. The compositions may contain diluents, e.g. clay, emulsifiers e.g. nonyl phenol-polyglycolether, adhesives, wetting agents and known bactericides or insecticides and may be formulated as dusts or sprays.
Patent GB-1085575-A (GB)
Title: Improvements in or relating to apparatus for providing a representation of the difference between the frequencies of two periodic signals
Inventor: THOMSON WILLIAM
IPC: G01R23/00
Filed: 1965-03-25
Abstract: 1,085,575. Indicating frequency differences. GENERAL ELECTRIC CO. Ltd. March 7, 1966 [March 25, 1965], No. 12699/65. Heading G1U. Two frequencies f 1 , f 2  to be compared are fed to a mixer circuit 3 and the resulting difference frequency is fed to a trigger circuit 5 the output from which switches a reactance 9 across the input at frequency f 2  during alternate half cycles of the difference signals. The sense of the resulting phase shift in the difference frequency signal at the instant of switching is determined by whether f 2  is greater or less than f 1  and differentiation of this signal by unit 6 results in a train of positive or negative going pulse which are used to trigger monostable circuits 13 or 14. If f 2  is greater than f 1  the resulting pulse train is of such a polarity not to trigger circuit 13 but when inverted by inverter 15 with trigger circuit 14 and flash the "High" lamp 17. Conversely if f 2  is lower than f 1  lamp 16 is flashed. The flash rate gives an indication of the difference frequency and in addition the output from trigger 5 may be used to operate a further switch 8 controlling the charge and discharge of capacitor 18 so that a voltage proportional to the frequency difference is fed to meter 23.
Patent GB-782346-A (GB)
Title: Improvements in the preparation of coking coal
IPC: C10B57/04
Filed: 1954-01-14
Abstract: 782,346. Materials for making coke. BURSTLEIN, E. M., and SOC. DES ACIERIES DE LONGURY. Jan. 14, 1954 [Jan. 19, 1953], No. 12717/56. Divided out of 782,345. Class 55 (2). In a method of producing high-grade coke from crushed or fine coals of different types comprising fusible coals and inert coals, the fusible coals containing only a low proportion of hard and inert petrographic constituents, the coals are formed into at least two separate mixes, the mix A containing the fusible coal or coals, the mix B containing the inert coals and any foreign additions such as coke dust, semi-coke and pitch, mix A is sieved in a screen having a mesh size between 2 mm.-6 mm. and the oversize is progressively ground in an adjustable grinder arranged in a circuit having a screen with a mesh size m between 0.5-2 mm., while mix B is progressively ground in a circuit with a screen with a mesh size m, the screenings from all the sieves being blended as desired and the mixture is coked. In the drawing, coals of mix A are fed through a mixer T1 and screened on a screen e having a mesh size between 2 mm.-6 mm., e.g. 3 mm., the screenings pass to a final mixer V while the oversize is fed to a variable-speed grinder G arranged in a circuit in which coals of mix B are ground. The mix B is fed through a mixer T2 and screened in a screen g having a mesh size 0.5 mm.-2 mm., e.g. 1.2 mm. The oversize from screen g is fed to the grinder G and circulated together with the oversize from the screen e. The screenings from the screen g are mixed with the screenings from the screen e in the final mixer V. Oil may be sprayed on to the coals in the mixers T1 and T2.