baber/WOPTO huggingface dataset:
Patent GB-115075-A (GB)
Title: Improvements in Artificial Limbs.
Inventor: BLATCHFORD CHARLES ALBERT
IPC: A61F2/00
Filed: 1917-04-23
Abstract: 115,075. Blatchford, C. A. April 23, 1917. Limbs, artificial.-In an arm, mechanism is adapted at the elbow joints so that when the arm is flexed, the forearm turns bodilv about its axis below the joint, and means are provided for throwing the mechanism in and out of gear and for locking the forearm in any adjusted angular or flexed position. As shown in Figs. 1 and 3, the forearm member 12 has a plate at one end with a series of circumferential holes, and at the other end a gear wheel 14, and can rotate but not move axially in a surrounding sleeve 19 carrying a quadrant 20 to which is pivoted the forked ends 22 of the upper arm member 23. On the elbow pivot 21 is secured a bevel-wheel 24 gearing with a similar wheel 25 on a shaft 16 carried by the sleeve 19, and a spur wheel 15 serves to rock the part 12. The shaft 16 is moved endways by a spring to disengage the gears and to engage one of a series of holes 13a to lock the part 12. The shaft is moved by hand against its spring to throw the wheels into gear, and is retained in that position by a spring catch 31. An operating cord is attached to the quadrant and to the body harness. A catch 32 is moved to engage a notched sector 33 to lock the arm against bending. In a modification, the forearm member 12 surrounds a stem formed with the quadrant, and carries a bevelwheel gearing with a fixed bevel-wheel on the elbow joint. This wheel is slotted at its centre to allow of being moved into and out of gear with the wheel on the part 12. In further modifications, the bevel-wheel is made to slide axially on the elbow pivot and is moved into gear against the influence of a spring by cam levers. Locking-catches are provided to lock the arm in an adjusted position.
Patent GB-1451832-A (GB)
Title: Circuit arrangement for the identification of vehicles
IPC: B61L25/04
Filed: 1974-02-07
Abstract: 1451832 Transponders; transistor oscillator circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 Feb 1974 [28 Feb 1973] 05739/74 Headings H4L and H3T A battery-powered transponder carried by a vehicle for identification purposes is provided with an arrangement for economizing in battery use in the absence of an interrogating signal. As shown in Fig. 1, a transmitting oscillator TO and trigger BS are directly connected to battery Ba and a logic circuit LC for generating a reply code is connected to the battery by a normally blocked gate P. The oscillator includes transistors which are cut-off in the rest state and the trigger in the rest state draws a negligible current. The interrogator periodically transmits short bursts which induce oscillations in the tuned circuit of the oscillator such that the cut-off threshold is exceeded to start the oscillator which continues to oscillate after the interrogation signal stops. This sets the trigger BS to open the gate P and power is supplied to logic circuit LC. Trigger TS also sets circuit LC to its start position, if not already there, and a clock pulse generator CL applies pulses to a counter TS co-operating with a coder CD. Each time the counter completes a given cycle a pulse is applied to a four position counter DV which controls the coder so that in the first position a start code is formed which is the same for all transponders, in the second and third positions an identication code is formed and a stop code which is common to all the transponders is formed in the fourth position. The resulting code series is supplied to modulator MD to modulate the oscillator TO accordingly. In the fourth position of counter DV the counter TS applies a pulse via gate Q to set the trigger BS to the rest state to block the gate P and also applies a pulse to stop the oscillator TO, e.g. by damping. Parity characters may be inserted in the code series for checking purposes. The trigger BS may be dispensed with and the gate P controlled by the rectified output of oscillator TO. Oscillator circuit, Fig. 2.-The oscillator comprises opposite type transistors T1, T2, inductor L and capacitors C2, C3, capacitor C4 having a high capacitance so that it is a virtual short circuit for A.C. When a signal is induced in the oscillatory circuit via aerial FA the voltage on C4 changes due to the diode action of the collector-base junctions of T1, T2 but no energy is supplied by the battery so long as a threshold is not exceeded. If the circuit starts to oscillate the transistors conduct alternately, the voltage on C4 adjusts to half the battery voltage and oscillations continue. The oscillator is frequency-shifted by the code signals via terminal MD controlling FET, T3 in series with capacitor C1. FET T4 becomes conducting via terminal ST at the end of a code series whereby the tuned circuit is damped by resistor R2 to stop the oscillations.
Patent GB-619958-A (GB)
Title: Improvements in or relating to radio transmitters
IPC: H03B11/02
Filed: 1946-02-25
Abstract: 619,958. Spark gaps. SUBMARINE SIGNAL CO. Feb. 25, 1946, Nos. 5781 and 5782. Convention dates, April 30, 1941, and Oct. 8, 1941. [Class 39 (i)] [Also in Group XL (c)] In an ultra-high frequency spark generator energized by the secondary 33, Fig. 6 of an aircored transformer 32, the transformer primary 34 is connected in series with a condenser C1, C2 or C3 and a resistor R1 ... R5, the circuit being triggered by a gas discharge tube 47 connected across a power source 46 and said resistor in series. The triggering voltage applied to the grid of tube 47 may be sinusoidal, peaked or sawtooth in wave form. The damping of the condenser discharge circuit is controlled by the series-connected variable resistance 43, to provide only one major oscillation, sufficient to cause breakdown of the oscillator spark circuit 57, 58. The main spark gap 22, 23, Fig. 1, is between two conical elements 20, 21, forming an oscillatory dipole radiator circuit and contained in a conducting cylinder 26 hollowed out to the shape of the cones 20, 21 so that the inner surfaces 27, 28 are spaced therefrom. The secondary winding 33 energizes the main spark gap through auxiliary spark gaps 16, 18 and 17, 19 and the spark gap equipment is contained in an air-tight chamber formed of the conducting casing 2 covered by a plate 4 of glass, ceramic &c. transparent to electromagnetic waves. A valve 3 allows air or gas to be pumped into the chamber under pressure. A horn 50 directs the radiation emerging through the plate 4. In a modification, Fig. 3, a single conical electrode 51 is supported in a conical shell 52 and carries a rod aerial 62, the spark gap being between member 51 and an adjustable screw 59 carried by shell 52. The gap adjustment may be viewed through a window 61. Specification 618,240 is referred to.
Patent GB-640410-A (GB)
Title: Internal combustion engine employing a regenerator for heating the charge
IPC: F02B3/02
Filed: 1948-02-26
Abstract: 640,410. Two - stroke and four - stroke engines. SHELL REFINING & MARKETING CO., Ltd.. LUBBOCK. I., and RIGBY R. Feb. 26, 1948, No. 5805. [Classes 7(ii) and 7 (iii)] To facilitate ignition, the air charge is: heated in a regenerator 18 through which the exhaust gases pass when leaving the engine cylinder by a valve 15 and the entry of fuel through an injector 19 is timed so that ignition begins at between 15 and 30 degrees of crank angle after top deadcentre. A four-stroke engine is shown in which the charge enters the cylinder through a valve below the regenerator, which comprises superposed layers of gauze or loosely-packed wires of stainless steel or nickel chrome alloy and is held by a perforated cone 20. Alternatively the regenerator may extend across the cylinder and both the valves be overhead. In a twostroke engine, the regenerator may be' placed on the piston face and the exhaust after passing through the regenerator flows out through co-operating ports in the piston and cylinder. The air charge may be supplied by a compressor driven by the engine or by an exhaust-gas turbine deriving its gas supply from either the engine or a separate combustion chamber supplied with air by a compressor driven by the engine crank-shaft.
Patent GB-491024-A (GB)
Title: Electromagnetic doorlocking system
IPC: E05B47/06
Filed: 1937-02-26
Abstract: 491,024. Door fastenings. RAUTEK, E. Feb. 26, 1937, No. 5871. Convention date, Feb. 28, 1936. [Class 44] In an electromagnetically controlled doorlocking system applicable generally, but particularly suitable for controlling the doors of motorvehicles, a central key-operated switch controls an electromagnetic device for each door effecting the locking and release of the bolt of the door. Contacts are provided whereby the locking and release circuits are broken and prepared alternately. The Figure shows a latch bolt R shot by spring F and retracted by spindle b in the usual way. A semicircular segment S adapted to engage or move clear of a corresponding recess in the bolt tail is rocked by a toothed segment a engaged by a rack c moved in opposite directions by electromagnets M<1>, M<2>. A single tooth on the rack rocks a disc the camspindle N of which operates two sets of contacts K<1>, K<2> so that when a release or looking operation has been effected by one of the magnets, the circuit of that magnet is broken and the circuit of the other magnet is prepared. Normally, the operative circuit is closed by the barrel of a key-lock (not shown) housed in one door handle in the usual way and having a cam extension which operates one or other of two contacts radially slidable in a ring of insulating-material. Provision may be made for direct hand-operation of segment S.
Patent GB-750794-A (GB)
Title: Process for the preparation of benzyloxy--a:2-dinitrostyrenes
IPC: C08F26/00
Filed: 1953-03-03
Abstract: Benzyloxy - b  : 2 - dinitrostyrenes of the general formula <FORM:0750794/IV(a)/1> (wherein X and Y represent phenyl, halophenyl or lower (1-8C) alkyl- or alkoxy-phenyl, or Y may also represent hydrogen, and R represents hydrogen or lower (1-8C) alkyl) may be used for the preparation of styrenated resins and polymers. Specification 720,584, [Group IV (b)], is referred to.ALSO:Benzyloxy-b :2-dinitrostyrenes of the ge ne ra formula <FORM:0750794/IV(a)/1> wherein X and Y represent phenyl, halopheny lower alkylphenyl or lower alkoxyphenyl, or, Y may also represent hydrogen, and R represents hydrogen or lower alkyl (the terms "lower alkyl" and "lower alkoxy" denoting radicals of 1-8 carbon atoms) are manufactured by condensing a benzyloxy-2-nitrobenzaldehyde with a 1-nitroalkane (preferably in an inert solvent) in the presence of an aliphatic or heterocyclic amine at about 50-150 DEG  C. Examples describe the condensation, by refluxing in benzene, of (1) 5-benzyloxy-2-nitrobenzaldehyde with nitromethane in the presence of n - butylamine; (2) 5 - benzhydryloxy - 2-nitrobenzaldehyde with nitromethane in the presence of amylamine; (3) 5-(p:p1-dimethoxybenzhydryloxy) - 2 - nitrobenzaldehyde with nitromethane in the presence of n-butylamine; (4) 5 - (p:p1 - dimethylbenzhydryloxy) - 2-nitrobenzaldehyde with nitromethane in the presence of piperidine; (5) 5-(p:p1-dichlorobenzhydryloxy) - 2 - nitrobenzaldehyde with nitromethane in the presence of n-butylamine; (6) 5 - benzhydryloxy - 2 - nitrobenzaldehyde with 1-nitropropane in the presence of diethylamine; (7) 5-benzyloxy-2-nitrobenzaldehyde with nitroethane in the presence of ethylamine; (8) 4 - benzyloxy - 2 - nitrobenzaldehyde with nitromethane in the presence of n-butylamine; (9) 3-benzyloxy-2-nitrobenzaldehyde with nitromethane in the presence of ethylamine.  Additional products (including 5-(p:p1-dibromobenzhydryloxy) - b :2 - dinitro - b  - amylstyrene and 5 - (p - iodobenzyloxy) - b :2 - dinitro - b  - propylstyrene), starting materials, amines and solvents are listed.  Specification 720,584 is referred to.
Patent GB-591443-A (GB)
Title: Improvements relating to apparatus for the detection of naked flame
IPC: H01J47/08
Filed: 1940-04-03
Abstract: 591,443. Photo -electric cells, and alarm and like systems. -COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 3, 1940, No. 6036. Convention date, April 3, 1939. [Classes 39 (i) and 40 (iii)] Fires are detected by means of a photon counting tube which is sensitive to the ultra violet radiation below -3000 Angstrom which is emitted in quantity 'by naked flames, but is insensitive to daylight or artificial light. The tube may comprise a cathode cylinder 15, Fig. 1, having a grid portion 13 and an anode filament 14 stretched along the axis. The cathode material may be nickel or platinum, freed from hydrogen. A filter_ may be incorporated for removing visible rays. The filling may be a mixture of a rare gas and oxygen at one-tenth of an atmosphere ; hydrogen may be - employed, but a filter is then essential. In another form the anode 2, Fig. 3, is mounted within a hemispherical bulb 1 on-which the semi-transparent cathode has been evaporated, contact with the cathode being made -by silver or graphite ring 4. The tube is connected to a pentode 18, in the anode circuit of which may be a relay 12 (mechanical or gas-discharge), actuating a fire alarm, telephone 8, or meter 9. The Specification as open to inspection under Sect. 91, states that the device may .be used for the delection of radioactive material in mines, under the sea, or in hospitals, or as a sensitive bolometer. This subject-matter does not appear in the Specification as accepted. -
Patent GB-1061390-A (GB)
Title: Improvements in or relating to propellants
IPC: C06B45/10
Filed: 1961-02-17
Abstract: A rocket propellant comprises an extruded or cast and hardened body made from an inorganic and/or organic oxidant and a fuel component which consists wholly or partly of a silicone rubber polymer and/or a mixture of hardenable polysiloxanes.  Suitable oxidants are alkali metal or ammonium perchlorates, nitrates, chlorates pentaerythritol tetranitrate, and trimethylenetrinitramine. The hardenable silicone may constitute the whole of the fuel, or it may be added in an amount of 0.05-2% by weight to act as a lubricant and/or plasticizer. Other optional ingredients are aluminium or aluminium-magnesium dust to raise the combustion temperature, and phenanthrene to raise the rate of combustion.  The components may be mixed and cast in a vacuum, the mould being vibrated to produce dense castings.  In Examples 1-4 propellants are prepared from ammonium perchlorate, aluminium dust, and methylpolysiloxane, with or without potassium perchlorate, graphite, and phenanthrene.  Example 5 relates to a propellant containing ammonium perchlorate, sulphochlorinated polyethylene, an epoxide resin, 2-benzothiazol disulphide, dipentamethylene thiuram tetrasulphide, diorthotolylguanidine, aluminium, graphite, lead stearate, dibutyl phthalate, and a small amount of methylpolysiloxane.
Patent GB-349910-A (GB)
Title: Improvements in or relating to portmanteaux, trunks, suitcases and the like
IPC: A45C13/03
Filed: 1930-02-24
Abstract: 349,910. Trouser press combined with suitcase &c. GOODWIN, F. G. W., 164, Fairfax Drive, and WILES, L. C. R., 162, Fairfax Drive, both in Westcliff-on-Sea, and JEFFRIES, G. H., 79, Wellington Road, Stoke Newington, London. Feb. 24, 1930, No. 6060. [Class 141.] The pressing member of a trouser press combined with a suitcase is arranged to be clamped to the baseboard by screws each of which enters a screw-threaded socket member secured to the suitcase by abutments one on the exterior of the suitcase and the other on the interior. The baseboard of the press may be formed by or may be secured to any wall of the suitcase. In the modification shown, the baseboard member a is secured in the lid A<1> of the suitcase by socket members D having fixed solid heads d on the exterior of the case and nuts d<1> on the interior. A fabric lining a<1> conceals the baseboard from view. The pressing member comprises boards B joined by metal bars b having cranked ends and slots b<1> to receive the shanks of screws c which pass into the screwthreaded socket members D, and which are formed with heads c<1> and finger pieces c<2>. The slots b<1> are so formed that when the screws c are loosened the pressing member may be freed from the baseboard member by a longitudinal sliding movement. A strap is provided to hold the ends of trousers which overlap from the press.
Patent GB-757975-A (GB)
Title: Improvements relating to the manufacture of tsection duct members
IPC: B21C37/29
Filed: 1952-05-23
Abstract: 757,975. Making T-section duct members; stamping. BENDZ, Ltd., and ACKERMAN, S. Jan. 22, 1953 [May 23, 1952], No. 6068/55. Divided out of 757,888. Classes 83 (2) and 83 (4). [Also in Group XXVIII] A method of producing a T - section. duct member comprises plunging a hole in the wall of a length of duct to provide an outwardly projecting flange at the periphery of said hole, trimming at least one end portion of the duct to produce a rim which lies in a plane substantially perpendicular to the centre line of the duct, pressing said trimmed end portion locally to produce an internal circumferentiallyextending recess adapted to receive a sealing ring and securing a further length of duct to the projecting flange by welding, brazing or other suitable process. A straight pipe has a hole plunged at a position intermediate its ends and a further length of pipe is secured, e.g. by welding or brazing, to an outwardly-projecting flange around the hole. The end or both ends of the duct is (are) then trimmed off perpendicular to the axis of the pipe and the trimmed pipe is held by shaped clamping dies. A succession of punches, in co-operation with a shaped end of the dies, form an enlarged end 11 of the pipe and, by curling, a circumferential internal recess 12, Figs. 1, 2 and 3. A rubber sealing-ring of circular, elliptical or oval cross-section is inserted into the recess so as to project slightly therefrom to form a fluid-tight seal against the end of another pipe inserted in the enlarged end 11. The recess 12 may be of rectangular, V-shaped or part-circular cross-section. Specification 757,884, [Group XXVIII], is referred to in the Provisional Specification.
Patent GB-959940-A (GB)
Title: Converters for steel manufacture
IPC: C21C5/46
Filed: 1963-02-14
Abstract: 959,940. Converters. PINTSCH BAMAG A.G. Feb. 14, 1963 [July 21, 1962], No. 6103/63. Heading F4B. A converter comprises a trunnion ring surrounding and spaced from the shell and carrying retractable dowels in one plane, pointing towards the shell and entering into loose fitting sockets on the shell to allow for radial expansion. The trunnion ring 2 is spaced around the converter shell 1, the shell and ring being interconnected by the dowels 5. The dowels engage sockets 7 welded to the shell and are screwed to the outer wall of the trunnion ring through their flanges 9. Rectangular section, steel reinforcing rings 11 are provided around the shell together with roof like screen plates 12 and 13, which prevent the trunnion ring from becoming dirty. Cooling air may flow naturally around the converter shell or one or both trunnion rings may be bored and air blown through the resultant hole or holes. The sockets may be fabricated from two rings of metal welded together the radially outer dowel supporting ring having a smaller bearing hole radius than the radius of the hole of the inner, shell mounted ring.
Patent GB-1462521-A (GB)
Title: Triazole derivatives
IPC: C07D249/12
Filed: 1974-02-11
Abstract: 1462521 Triazole derivatives JOHN WYETH & BRO Ltd 11 Feb 1975 [11 Feb 1974] 06139/74 Heading C2C Novel compounds (I) (including salts thereof and tautomeric forms of the triazole ring): wherein R represents a phenyl or substituted phenyl radical; A represents a C 1-6  alkylene radical; R<SP>1</SP> and R<SP>2</SP> independently represent hydrogen or C 1-6  alkyl; or R<SP>1</SP> and R<SP>2</SP> together with the nitrogen to which they are attached form a heterocyclic ring selected from pyrrolidino, morpholino or piperidino; are made by reacting compounds (II) (prepared by reacting R . COX with thiosemicarbazide) with X-A-NR<SP>1</SP>R<SP>2</SP> (X is, e.g., halogen). Pharmaceutical preparations inhibiting blood platelet aggregation and showing antihypertensive, anti-trichomonal and CNS actions contain (I) as active ingredient. Administration is orally or parenterally.
Patent GB-1189438-A (GB)
Title: Photocopy reproduction apparatus
Inventor: GOODMAN ROBERT CHARLES
IPC: G03D13/00
Filed: 1969-02-05
Abstract: 1,189,438. Feeding sheets. GAF CORP. 5 Feb., 1969 [8 Feb., 1968], No. 6290/69. Heading B8R. [Also in Division G2] Photocopy reproduction apparatus has a pair of co-operative rollers 36, 38 to convey copy paper to a developer portion 10, and a pick-off and guide device adapted to remove copy paper tending to adhere to the surfaces of the rollers, the device comprising guides 50 mounted on the developer portion and having leading edge portions contacting the peripheral surfaces of the rollers, resilient tensioning means 70 interconnecting the leading edge portions and the developer portion to bias the leading edge portions towards the rollers and to maintain compressive contacting relationship therebetween. The guides are flexible and have pins 56 projecting through larger diameter apertures 58 provided in the developer portion. Brackets are fastened to the developer portion and the guides, a tension coil spring interconnecting the brackets. A plurality of springs may be provided for each of a plurality of guides extending over the axial length of each roller. The guides are bent into a funnel-shaped configuration to assist the feeding of sheets into the developer portion, which may utilize ammonia vapour tanks.
Patent GB-973631-A (GB)
Title: Improvements in cartons
IPC: B65D85/32
Filed: 1962-02-20
Abstract: 973,631. Cartons. H. T. HAILEY, and H. E. HAILEY. Feb. 14, 1963 [Feb. 20, 1962; May 1, 1962], Nos. 6437/62 and 16533/62. Heading B8P. A carton for eggs and the like articles, preferably made from a single blank, comprises intermediate panels 15, 16 having articlereceiving apertures 20, the panels being spaced both from top and bottom walls 11, 12 and from one another, and the carton is completely open on two opposite sides so that the contents are fully open to inspection. Push-out flaps 30 strengthen rear wall 10, flaps 25 support panels 11 and 15 above panels 12 and 16 when passed through dovetailed slots 27, and flaps 22 form a support for panel 16 by co-operation with tabs 23. A preferred material for the carton is double-faced fine-fluted corrugated board and the filled carton may be wrapped in a transparent material. According to the first Provisional Specification, push-out flaps from panel 16 similar to flaps 25 may extend upwardly and have inturned tabs at their upper ends which are tucked into slots near the top of front wall 13.