baber/WOPTO huggingface dataset:
Patent GB-602846-A (GB)
Title: Improvements in frequency or phase modulation detectors
IPC: B01D39/14
Filed: 1945-12-18
Abstract: 602,846. Frequency and phase modulation. RADIO CORPORATION OF AMERICA. Dec. 18, 1945, No. 34297. Convention date, June 14. [Class 40 (v)] A frequency or phase-modulation detector comprises a discriminator feeding a pair of rectifier circuits so arranged that the rectified voltages are in series-aiding polarity, whilst the sum of the rectified voltages is maintained against modulation-frequency variations. The detector gives immunity from undesired amplitude-modulation effects even when the received carrier is not accurately centred on the detector characteristic, and without the employment of a limiter valve. An intermediate frequency amplifier 2 feeds a discriminator 5, 12 of the phasing type. Opposite sides of the circuit 12 are connected to oppositely-poled rectifiers 13, 14, each shunted by its load resistance 25, 26. The other poles of the rectifiers are connected by a large condenser 24 which acts as a short circuit at modulation frequencies and may be shunted by a resistance 27 low compared with the resistances 25, 26. The audio signal is taken off by a tap 28 on the resistance 26 preferably adjustable along the resistance near the earthed end. In modification, Fig. 3 (not shown), the voltage on the condenser 24 is maintained constant by a battery, or by potential-dividing resistances connected across a D.C. voltage source, and an adjustable damping resistance is connected across the tuned circuit 12. If the polarity of both diodes 13, 14 is reversed, automatic gain control bias may be derived at the point 30, and a delay bias may be applied at an intermediate point on the resistance 27, Fig. 4 (not shown). In Fig. 5, the load resistances 72, 73 are in series with the diodes 13, 14 and their junction is connected through a radio-frequency choke 74 to the midpoint of the tuned circuit 12. Audio output is taken from a tapping on the resistance 73. The condenser 75 maintains the outer ends of the load resistances at the same audio-frequency voltage. Capacities associated with the rectifier load resistances may give de-emphasis of the higher modulation tones. Specification 489,094 is referred to.
Patent GB-808787-A (GB)
Title: Improvements in or relating to collet chucks
Inventor: COCKELL FREDERICK GEORGE
IPC: B23B31/20
Filed: 1956-11-09
Abstract: 808,787. Chucks. BURNERD & CO. Ltd., F. Aug. 15, 1957 [Nov. 9, 1956], No. 34308/56. Class 83 (3). An adjustable work-stop, for a hollow spindle chuck, comprises a disc 1 having at least three spring-urged balls 5 in equally spaced radial holes 4, and a central screwed hole engaged by a screwed stop 8, having a rounded head 9. The stop 8 is lockable by a radial screw in the disc or, alternatively, by a nut 11. The disc slidably fits an axial bore 2, and abuts a shoulder 7 of the chuck 3, and is held by the balls 5 engaging an annular recess 6 in the chuck, the width of which is less than the thickness of the disc to facilitate removal. The disc may be replaced by an extended cylinder having two diametrically disposed spring-urged balls. Specification 735,703 is referred to.
Patent GB-1142884-A (GB)
Title: Improvements in or relating to liquid-storage vessels
Inventor: LEES ROBERT MARTIN
IPC: F24H9/12
Filed: 1966-07-30
Abstract: 1,142,884. Domestic hot water storage tanks. IMPETUS BUILDING COMPONENTS Ltd. 30 Oct., 1967 [30 July, 1966], No. 34325/66. Heading F4A. A domestic, hot-water storage tank comprises an inner container 1 of plastics material such as flexible polypropylene, a rigid outer container 2 of, for example, aluminium, thermal insulation 3 of foamed polyurethane, felt or glass fibre therebetween and at least one conduit 4 leading from the inner container to the exterior of the outer container. The tank also has an immersion heater 12 and an outlet 5 extending through an apertured lid 6. For method of assembly and minor details of construction, the Specification should be referred to.
Patent GB-899198-A (GB)
Title: Improvements in or relating to internal combustion engines and pistons therefor
Inventor: MANSFIELD WILFRED PERCIVAL
IPC: F02B75/04
Filed: 1959-10-09
Abstract: 899,198. Pistons. BRITISH INTERNAL COMBUSTION ENGINE RESEARCH ASSOCIATION. Oct. 6, 1960 [Oct. 9, 1959; Oct. 30, 1959], Nos. 34341/59 and 36928/59. Addition to 762,074. Class 122 (1). In an I.C. engine piston of the kind described in the parent Specification comprising two parts axially movable relative to each other to vary the compression ratio inversely with engine load, one of the parts comprises the body of the piston and the other comprises a supplementary piston 1 slidable in a bore in the piston crown 20. The piston 1 has a stem 3 carrying a further supplementary piston 4 slidable in a bore in the underside of the piston crown and the pistons 1 and 4 form, with the crown, chambers 16 and 17 of reciprocably variable volume fed with oil from a common space 11 through non-return valves 6 and discharging through a non-return valve 8 and a restricted orifice 9 respectively. A cooling space 10 is supplied with oil from the space 11 which is fed with oil via a passage in the connecting rod. A ceramic coating 14 on the piston 4 acts as a heat barrier and a layer of insulating material 15 may be embedded in the piston. In a modificaion, Figs. 2 and 3 (not shown), the piston 1 slides in an annular insert screwed into the piston crown 20.
Patent GB-369222-A (GB)
Title: Improvements in or relating to turbines
IPC: F02C5/04
Filed: 1930-11-15
Abstract: 369,222. Turbines. SILBERMANN, E., 39, Strada Vlaicu, Oradeamare, Roumania. Nov. 15, 1930, No. 34481. [Class 110 (iii).] A gas turbine in which driving fluid acts in intermittent gusts has a rotor containing guide passages or blades such that the flow of the working fluid proceeds along lines following curves which vary continually in three dimensions. Explosions may be timed to take place at intervals which exceed the period of revolution of the rotor, and in practice are a multiple of the period of a revolution. Several turbines embodying these features are illustrated in the Figures. In Fig. 9 gases are exploded in a chamber 17 and flow radially outwards along passages 7. The rotor is in two parts 18, 19 and in another form may be fixed to the shaft 5. An alternative arrangement has a rotor with outwardly extending bent arms containing the passages 7. In Fig. 13 an annular chamber 22, connected by a series of conduits 23 with the explosion chamber 24, is fitted with nozzles 25 which direct the gases into passages 7 in the rotor 2. The chamber 22 may be divided into compartments by radial division walls. According to Fig. 16 there are two rotor members 37, 38 with a transfer chamber between them. The turbine illustrated in Fig. 21 has a rotor 48 which may be cylindrical or conical, in which passages 47 are arranged with both inlet and outlet ends on the periphery. Inlet and outlet ports 50, 51 are provided. Fig. 23 shows passages 55 arranged in series around the periphery of the rotor 54. These passages may be in a plane perpendicular to the axis of rotation or they may be at an angle to this plane. In a further construction the passages are formed helically around the rotor periphery. Rotors may be built up of a series of discs or laminations to facilitate machining of the passages in portions. Passages may diminish or increase in cross section towards the middle of the passages. Cooling ducts may be provided on each side of the passages, and scavenging air allowed to flow through the passages. Several rotors may be arranged in series. The passages in the rotors may have branches in order to increase the area of the working face. The driving medium may be benzine, crude oil, ammonium nitrate, chlorates, naphthalene, picrates, or mercury.
Patent GB-755739-A (GB)
Title: X-ray contrast compositions
IPC: A61K49/04
Filed: 1953-12-11
Abstract: An X-ray contrast composition comprises an X-ray contrast agent and a water-soluble dextran product i.e. dextran fractions, partially degraded dextran and fractions thereof, said product having in 4 per cent aqueous solution a viscosity of 1,5 to 7,2 relative to water, and the composition, in aqueous medium, having a viscosity of 2 to 1000 relative to water.  Solutions of water soluble iodine-containing contrast agents may contain between 10 and 70 gm. of contrast agent and 0,5 to 35 gm. preferably 10 to 25 gm. of dextran product, per 100 ml. of composition, solutions of viscosity 2 to 15 being suitable for injection into blood vessels, and solutions of viscosity 15 to 1000 being suitable for introduction into less sensitive parts of the body.  Suspensions of water insoluble contrast agents in aqueous solutions of dextran products having a viscosity of 2 to 300 may also be used.  The compositions may also contain local anaesthetics, antihistamines, antiallergics, and analeptics. Suitable contrast agents are barium sulphate, ortho-iodohippuric acid, monoiodomethane sulphonic acid, di-iodomethane sulphonic acid, 5-iodo-2-pyridone-acetic acid, 3.5- diiodo-4-pyridone-N-acetic acid, N-methyl-3.5 - diiodo - 4 - pyridone - 2,6,dicarboxylic acid, N-propyl - 3.5 - diiodo - 4 - pyridone - N - acetate, tetraiodophenolphthalein, a  - phenyl - b  - (4-hydroxy - 3.5. - diiodophenyl) - propionic acid, a  - ethyl - b  - (3 - amino - 2.4.6 - triiodobenzopropionic acid, diiodoerucic acid isobutyl ester, sodium - 3 - acetylamino - 2.4.6 - triiodobenzoate, iodised vegetable oil, as such or in the form of salts e.g. diethanolamine salt or derivatives.  The dextran product may be obtained by the methods of Specifications 583,378, [Group IV], and 673,103 [Group V].  The Specifications include a description of the prior use of cellulose derivatives and other colloids as viscosity regulating agents in X-ray media.
Patent GB-1149754-A (GB)
Title: Anti-theft device for a road vehicle
Inventor: NIGHTINGALE KENNETH
IPC: B60R25/022
Filed: 1965-08-12
Abstract: 1,149,754. Vehicle anti-theft devices. NEW ERA (ACCESSORIES) Ltd. 8 SEPT., 1966 [12 Aug., 1965], No. 34509/65. Heading B7J. [Also in Division F1 A steering wheel 38 may be locked and an ignition circuit broken by extending through the wheel a bolt 35 provided with a handle 36 and slidable in a tube 12 fastened to a lock casing 11 held by clamps 13, 14, 15 and bolts 17, 19 to a steering column 16. A spring latch bolt 26 movable transversely by a locking device 28 into the tube 12 and the bolt 35 not only locks the bolt but operates an ignition and or alarm switch 32 by engaging a button 33 with an inclined face 34. The bolt end may be provided with a buffer stop 40 or with a ball catch retainer, Fig. 4 (not shown). In the operative position the bolt 35 covers the screw (19), Fig. 3 (not shown) and prevents disassembly of the device.
Patent GB-521910-A (GB)
Title: Improvements in detergents and in the manufacture thereof
IPC: C11D9/10
Filed: 1938-11-28
Abstract: 521,910. Soaps. CROSFIELD & SONS, Ltd., J. Nov. 28, 1938, No. 34572. Convention date Nov. 27, 1937. [Class 91] Saponaceous detergents are made by reacting a soap-forming fatty acid with a finely divided solid alkali metal silicate having an apparent s.g. of at most 1, the temperature being too low to volatilize or decompose the fatty acid, the amount of water present being insufficient to break down the characteristic physical structure of the silicate, and the proportions of silicate and fatty acid being such as to form a product containing at least 5 per cent. of soap and a substantial excess of alkali metal silicate. Salts e.g., sodium carbonate or phosphates may be added, e.g., in solution, and the fatty acid may be dissolved in an inert solvent e.g., petroleum ether. Practical proportions of water are 1-10 per cent. of the mixture. Suitable silicates are :-indumescent silicates formed by rapidly heating hydrated silicates ; flaked silicates formed by rotating cooled drums in heated concentrated silicate solutions and scraping off the films ; and spray-dried silicates. The reaction may be brought about by spraying the. melted fatty acid over the silicate whilst on the flaking drum or in a rotary drum ; by mixing solid and heating or allowing to stand ; and by grinding together. In examples:- (1) 33.3 lb. of anhydrous metasilicate of apparent s.g. 0.7 and 10 lb. of water are agitated with 56.7 lb. of stearic acid at 70C. (2) 100 lb. of oleic acid are distributed over 100 lb. of Na 2 O,2SiO 2  containing 14 per cent. of water and of apparent s.g. 0.04 in a, rotary drum at 25C.
Patent GB-802922-A (GB)
Title: Improvements in or relating to locking devices
Inventor: DAVIDSON DAVID DOUGLAS
IPC: F16B7/14
Filed: 1955-12-02
Abstract: 802,922. Adjustable locking devices. ZIMMER ORTHOPAEDIC, Ltd. Nov. 30, 1956 [Dec. 2, 1955], No. 34600/55. Class 44 A device for locking an element 1 to a member 2 in which the element 1 is slidable in the member 2 and has an inclined end.surface 4 inclined to the direction of sliding; a wedge 11, also slidable in member 2 and having an inclined surface 12 for co-operating with the surface 4, is internally screw threaded for engagement with a bolt 9 which passes through the element 1 so that when the bolt 9 is rotated the wedge 11 and element 1 are drawn into contact, further rotation causes the wedge 11 to move sideways relative to the element 1 so that they become forced against opposite sides of the bore of the member 2 to lock the element in the member 2. The head 10 of bolt 9 bears on a cap 6 surrounding a ring 5 at the lower end of the element 1, in the locked position, the bolt 9 is not directed along the longitudinal axis of the element. The described application is to a footrest 3 fixed to or integral with the element 1, the member 2 being a member of a wheel chair.
Patent GB-1322069-A (GB)
Title: Aminoalkanoylaminocyclohexane derivatives
IPC: C07D295/15
Filed: 1970-07-16
Abstract: 1322069 Aminoalkanoylaminocyclohexane derivatives YAMANOUCHI PHARMACEUTICAL CO Ltd 16 July 1970 [14 Aug 1969 18 Nov 1969] 34602/70 Heading C2C Novel compounds of Formula I: wherein n is 0 to 2, R 1  to R 4  are H or methyl and R 5  is H, C 1-4  alkyl, benzyl or carbonyl, are prepared either by reaction of a compound of Formula II with an acid of formula or a reactive derivative thereof, where R 6  and R 7  are H or methyl or a protecting group (in examples benzyloxycarbonyl) provided both R 6  and R 7  are not H and, if necessary, removing the benzyloxycarbonyl or other protecting group from any intermediate or (b) reacting a compound of Formula V wherein X is halogen with a compound R 3 .NH.R 4 . Intermediates of Formula V are prepared by reacting a compound of Formula II above with a compound of formula Pharmaceutical compositions in conventional forms for oral or parenteral administration and having analgesic activity comprise an above novel compound and a carrier or diluent.
Patent GB-1396297-A (GB)
Title: Cameras for photography
IPC: G03B15/00
Filed: 1971-07-23
Abstract: 1396297 Cameras C S MILLS 19 Oct 1972 [23 July 1971] 34638/71 Heading G2A The lens panel 21 and film holder 22 of a camera are mounted on a base bar 23 at an adjustable distance apart, each having a number of degrees of rotational movement. As shown, the film holder, which can be replaced by a focusing screen, is mounted so that it can rotate through 360 degrees in the plane of its supporting holder 22. The holder itself can rotate about an axis 26 passing through the optical axis 25, and also through the spindle 29 which mounts the holder on a block sliding on the base bar 23. The lens is mounted in a ball-and-socket joint in the opening 24 in the lens panel 21, which panel can also slide along the bar 23. The bar itself is mounted on a tripod or support by an attachment 28 so that the whole camera and bar can pivot about the axis 27. In the modification of Fig.1 (not shown) the lens and film holders can move along the base bar (3) by a rack and pinion arrangement which allows both coarse and fine adjustment.
Patent GB-991177-A (GB)
Title: Improvements in harness connection for dynamoelectric machine
IPC: H02K3/38
Filed: 1961-09-27
Abstract: 991,177. Insulating and securing end windings in dynamo-electric machines. GENERAL ELECTRIC CO. Sept. 27, 1961 [Oct. 21, 1960], No. 34684/61. Heading H2A. Connections to the supply and between end turns of a dynamo-electric machine are made by means of pre-formed connection harnesses 20, 30 having leads 26, 32 embedded in a moulding of epoxy resin 22. Normal brazed and taped connections are made between winding leads 18 and jumper or supply leads 32, 26. The end windings may be braced by moulding 22 being rigidly attached to the machine frame.
Patent GB-815011-A (GB)
Title: Improvements in or relating to universal joints
Inventor: HUBBOLD SYDNEY
IPC: F16D3/72
Filed: 1956-11-13
Abstract: 815,011. Hinges and pivots. GENERAL ELECTRIC CO. Ltd. Oct. 9, 1957 [Nov. 13, 1956], No. 34705/56. Class 65(2) [Also in Group XXXII] A universal joint comprises a member 1 made of resilient material and having two pairs of spring arms, each pair being inwardly biased along a different one of two mutually per-' pendicular but non. intersecting axes, and two pivot members 3 each of which is mounted for rotation about the corresponding axis in bearings provided by one of the pairs of arms the spring pressure of which provides a frictional resistance of its rotation. The member 1 consists of an endless wire bent to form part-circular loops 2 which fit over the cylindrical ends 5 of the pivot members and bear against the sides 6 of projections 4 the ends of which are threaded for attachment e.g. to the parts of an electric light fitting. The ends 5 may have conical surfaces.
Patent GB-321842-A (GB)
Title: Improvement relating to coin-selecting mechanism for coinfreed vending machines
Filed: 1928-11-26
Abstract: 321,842. Harper, P. S. Nov. 26, 1928. Testing edge of coin for milling.-In coin selector mechanism for coir. - freed machines wherein a member in the coin path is capable of pivotal movement, when engaged by a milled-edged coin, to allow the milled coin to pass, and of a lateral displacement limited by a fixed stop, when engaged by a smooth coin, to wedge the smooth coin in the coin path, the movable member 6, 7 is provided with a pin-and-slot mounting 4, 5 to permit the pivotal and lateral displacements, the slot 5 being normally aligned with the fixed stop 10. The. movable member comprises an arm 7 normally resting against a shoulder 11 on the coin shoot and a head 6 provided with the slot 5 and with teeth 8 for engagement with the milling of a proper coin. A milled coin rotates the member 6. 7 about the pin 4 and passes on. A smooth coin fails to rotate the member, which is, however, displaced by sliding along the pin 4 until the top 9 of the head 6 abuts against the stop 10. The smooth coin is thereby wedged. until the movable slide of the testing shoot i,; opened to discharge it.
Patent GB-994176-A (GB)
Title: Improvements in or relating to agricultural machines
IPC: A01D78/00
Filed: 1960-10-11
Abstract: 994,176. Haymaking machines. C. GOODALL, and M. GOODALL. Sept. 22, 1961 [Oct. 11, 1960], No. 34820/60. Heading A1F. In a haymaking machine of the type having rotatable tools 10 mounted on non- vertical arms 14 pivoted on a support 11 about horizontal pivots 13, a torsion spring 16 is secured at its ends to each pivot 13 or to the support and is shaped between its ends to provide one or more coils and an integral cradle 19 which resiliently supports the arm 14 at a position remote from the pivot. Each arm is integral with a sleeve 15 loose on the pivot 13 which carries a fixed collar 17 at its outer end, to which the one end of the spring is secured, the other end being secured at 18 to the support 11. The support 11 is carried by a beam 12 which may have land-wheels or be mounted on tractor lift-links. Specification 892,436 is referred to.
Patent GB-873627-A (GB)
Title: Information storage device
IPC: G11C19/04
Filed: 1957-11-08
Abstract: 873,627. Circuits employing bi-stable magnetic elements. ZUSE, K., [trading as ZUSE KOMM.-GES.]. Nov. 8, 1957 [Nov. 26, 1956], No. 34835/57. Addition to 871,714. Drawings to Specification. Class 40 (9). [Also in Group XIX] In the information store disclosed in the parent Specification an additional series register is provided in the storage matrix, the column leads being threaded through the cores of the additional register so that any given column lead passes first through a core in the first partial row together with the column lead to one side of it, and then through a core in a second partial row together with the column lead to the other side of it, so enabling information read from a core of one of the partial rows to be written into the preceding core of the other partial row by simultaneously pulsing the given column lead and the first partial row lead for read out and then simultaneously pulsing the column lead and the other partial row lead for read in.
Patent GB-738962-A (GB)
Title: Improvements in and relating to wrenches
IPC: B25B13/52
Filed: 1953-12-15
Abstract: 738,962. Wrenches. COMPAGNIE DE PONT-A-MOUSSON. Dec. 15, 1953 [Dec. 17, 1952; Oct. 15, 1953], No. 34874/53. Class 61. A pipe wrench comprising a lever 1 having at one end a fixed jaw 2 and a jaw 3 pivoted to the lever adjacent the fixed jaw, is provided with a deformable arcuate gripping band extending between the jaws,  one end of the band being attached to the fixed jaw 2, the other end being either attached to the pivoted jaw 3 or left free. As shown in Figs. 1 and 3, the gripping band 11 comprises a spring steel, arc-shaped blade 12 having on one or both faces a covering of rubber or other elastic material provided with projections 16 on the inner face. The eyed ends 13 of the band are attached to the bifurcated ends of the jaws by pivot pins 9, 10. In a modification the ends of the band are riveted to the arcuate ends of the jaws. The gripping band is slightly greater in length than half the circumference of the pipe to be gripped, the ends of the band in its free state subtending an angle of 110 degrees at the centre of curvature of the band. In another modification, Figs. 8 and 10, one end of the gripping band 27 is secured by a pivot pin 26a to the fixed jaw 22. The band comprises one or more chains 29 secured to a tube 28 to form an eye for the passage of the pin 26a and having an elastic covering moulded thereto. The inner face of the gripping band has projections 31, the outer face being provided with grooves or ridges in or against which the gripping nose 25 of the pivoted jaw 23 is supported. The pivoted jaw is urged towards the fixed jaw by a spring 32. Instead of the spring blade 32 a compression spring may be provided or two spiral springs may be wound around the pivot 24 which is fixed to the handle 21.