baber/WOPTO huggingface dataset:
Patent GB-1207665-A (GB)
Title: Transmission gear mechanism
IPC: F16H1/20
Filed: 1967-10-13
Abstract: 1,207,665. Ink-ribbon mechanism. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Oct., 1967 [18 Oct., 1966], No. 46815/67. Heading B6F. [Also in Division F2] In a transmission gear mechanism for an ink-ribbon mechanism comprising an input shaft 4 carrying a gear 5, an output spool shaft 12 carrying a gear 13 and a plurality of intermediate shafts 7, 10, 15 carrying gears 8, 9, 11, 14, 16, the shaft 15 is carried by an arm 17 which is pivotally mounted on shaft 10 and coupled thereto by a friction plate 18 so that on rotation of shaft 10 in one direction the gear 14 is urged into engagement with output gear 13. When the drive ceases, spring means act to move arm 17 in a direction to disengage gears 14 and 13. The spring means comprises a coil spring 26, Fig. 3, having one end 27 secured to a member 25 on a shaft 4 of a driving motor 3, and the other end 28 secured to a disc 29 clamped between friction discs 31, 32 forming a slipping brake. On the initial rotation of motor shaft 4, the spring 26 becomes torsionally loaded. When the motor 3 stops, the energy stored in the spring 26 is released to rotate, the gearing in the opposite direction causing arm 17 to swing away from output shaft 12. Two such mechanisms may be used in tape spooling apparatus.
Patent GB-1140844-A (GB)
Title: Improved cutting tool bit
Inventor: MOORE ARTHUR IVAN WALTER
IPC: B23C5/06
Filed: 1966-01-21
Abstract: 1,140,844. Cutting tools. PRODUCTION ENG. RESEARCH ASSOCIATION OF GREAT BRITAIN. 21 Jan., 1966 [1 Nov., 1965], No. 47007/68. Divided out of 1,140,841. Headings B3B, B3K and B3L. A cutter bit in the form of a slice and having a central hole comprises a plurality of similar cutting edges formed by the junction of the side wall of the slice with one of its end faces, the cutting edges being distributed around and radially spaced from the central hole, the most prominent part FP of each cutting edge being of curved convex contour and the remainder of the cutting edge consisting of one or more straight sections so disposed that the minimum angle between a straight section and a radius CD from the centre of the hole through the most prominent part of the cutting edge is not less than 30 degrees, a narrow land L being provided adjacent the cutting edge along all or part thereof on the end face of the slice.
Patent GB-1204895-A (GB)
Title: Preparation of omega-amino acids
Inventor: LITTLE JOHN CLAYTON
IPC: C07C227/04
Filed: 1967-10-19
Abstract: 1,204,895. Preparation of omega-amino-acids. DOW CHEMICAL CO. 19 Oct., 1967, No. 47691/67. Heading C2C. Omega-amino-acids are prepared by hydrogenating a cyanoacid reactant of general formula NC(CH 2 ) n C(R 1 R 2 )CO 2 NH 4 , where n is 0 or an integer 1-9, R 1  and R 2  are each H or together are =NOH, in an aqueous solution at 0-200‹ C. with a hydrogen pressure of 1-150 atmospheres, in the presence of at least 0.01 grams of ruthenium catalyst per mole of cyanoacid. The reaction is preferably carried out in the presence of ammonia or ammonium hydroxide. Preferably a proportion of at least 2 moles of H 2  per mole of the cyanoacid reactant is used at 50-150‹ C. and an H 2 -pressure of 35-125 atmospheres. The examples relate to the reduction of the ammonium salt of 6-cyanohexanoic acid to 7-aminoheptanoic acid using Ru/C, Ru/alumina or RuO 2  as catalyst.
Patent GB-1116123-A (GB)
Title: Improvements in or relating to tensile testing machines
Inventor: GRIFFITHS JOHN HARVEY
IPC: G01N3/08
Filed: 1964-11-24
Abstract: 1,116,123. Measuring tensile strength electrically. INSTRON Ltd. Nov. 24,1965 [Nov. 24, 1964], No. 47817/64. Heading G1N. Apparatus for measuring the relationship between a varying tensile load applied to a test material and the resulting linear extension incorporates means for storing the maximum load value. A test sample M (Fig. 7) is gripped between jaws F, J opened and closed by pneumatic rams G, K. The upper jaw F is carried by a load measuring cell H, and the lower jaw J is attached to a crosshead E movable by lead screws D driven by a constant speed motor L, whose rotation represents extension of the test material. The load signal, measured at H, is fed to a chart recorder N driven at constant speed by motor R, displacement of the pen representing load value being produced by a servomotor, also coupled via gearing &c. to the slider 104 of a potentiometer 102, and the slider 2 of a potentiometer 1. A further constant speedmotor 126 drives the slider 103 of a potentiometer 101 to represent extension. Tension is first applied to the sample M manually through the open lower jaw J, and the loading, as measured by the voltage at the slider 2 of potentiometer 1, is compared in a "pre-load detector" with a required initial loading. When these are equal a transistor switch circuit Fig 4, (not shown) operates a relay 16 which closes jaws J, starts a timer, and energizes the extension motor L, the chart motor R and a clutch 105 for the slider 103 of potentiometer 101. A similar transistor switch circuit causes both jaws F,J to open when the load exceeds a predetermined value. A further switching circuit Fig. 5 (not shown) can be used to stop the test procedure when the load value falls by a predetermined percentage after reading a maximum, the stopping conditions being determined by operation of a case switching knob selecting a particular type of procedure consistent with the extension characteristic of the test material.
Patent GB-1082010-A (GB)
Title: Controlling winches by fluid pressure
IPC: B66D5/26
Filed: 1965-11-12
Abstract: 1,082,010. Hydraulic control of crane winches. RHEINSTAHL UNION BRUCKEN BAU A.G. Nov. 12, 1965 [Nov. 17, 1964], No. 48097/65. Heading B8B. In a mobile crane having at least one rope drum provided with a clutch and a load brake which are controlled by fluid pressure in response to movements of a lever 1, the load brake is operated by a double-acting ram 36 with a spring. When fluid is directed to one side of the ram piston the brake is released against the spring pressure and when fluid is directed to the other side of the ram piston the brake is applied by fluid pressure. Movement of lever 1 towards the side H engages a rope-drum driving clutch by expanding a cylinder 24 and also releases the load brake so that a load may be hoisted. To lower a load the lever is moved towards S thus applying a brake band 17 to a drum 16 which is coupled to the winch motor by planetary gears, and simultaneously releasing the load brake. The foot pedal 4 is inoperative. To convert to hand lever and pedal operation a control valve 6 is moved to the right closing the connection between pipes 28, 29 and connecting pipes 40, 30. The brake may now be released against its spring by the pedal 4. If, in addition to the above, a control valve 9 is switched over so that pipes 34, 46 are connected and pipes 35, 47, the brake will be applied by fluid pressure when the pedal 4 is depressed. Fig. 7a (not shown) illustrates a modified control circuit in which pressure regulators 2a, 3a replace cylinders 2, 3 of Fig. 1. To switch to lever and pedal operation the valves 6, 9 are adjusted as previously described. The spring which applies the brake in the ram 36 is locked out of operation by a bar moved by a Bowden cable.
Patent GB-1023832-A (GB)
Title: Signaling repeaters
IPC: H04M19/00
Filed: 1962-12-20
Abstract: 1,023,832. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. Dec. 20, 1962 [Dec. 21, 1961], No. 48100/62. Headings H4K and H4R. A ringing repeater for use in a long line which is subject to variable leakage resistance comprises a local ringing generator which operates in response to each burst of ringing current incoming to the repeater and which further comprises means which, in response to looping of the outgoing line, loops the incoming line irrespective of the presence or absence of ringing current. The repeater acts in effect as a bridge network of which the impedance in the arm including the outgoing line is altered in dependence upon the presence or absence of ringing current so as to maintain the bridge balanced but which becomes unbalanced when the (subscriber) line is looped. As described, the repeater 107 is located in a line L1, L2, L3, L4 between a subscriber station 100 and a conventional exchange. When the line circuit of a free called subscriber, e.g. 100, is rung relay RR comes up during ringing intervals and relapses during silent periods whence either local high alternating voltage source 116 or low direct voltage source 110 is connected to line wires L1, L2. In the former case a circuit is completed via the bell 103 and the parallel circuit R6, PNPN diode D6 and in the latter case via leakage resistance R3 and the shortcircuited diode, so that in both cases the potential at a point " a " is maintained at a level insufficient to trigger transistor Q1. When the sub - subscriber closes his loop (calling and during dialling or called) the potential at " a " changes (diode D6 breaking down if the line is being rung at the time) whereby Q1 conducts and so switches on Q2 which thereby closes the loop to the exchange.
Patent GB-1350207-A (GB)
Title: Fuel burning radiant heaters
IPC: F24C1/08
Filed: 1970-10-10
Abstract: 1350207 Radiant heaters TECHNICAL DEVELOPMENT CAPITAL Ltd 11 Oct 1971 [10 Oct 1970 12 May 1971] 48246/70 and 14586/71 Headings F4W and F4T A fuel burning radiant heater or space heater comprises a bed of refractory particles, to which fuel and air is fed to fluidize the bed, at least when hot, and the bed as a radiator of heat energy. In one embodiment, Figs. 3 and 4, a space heater comprises a row of tubes 45, of heat resistant material transparent at least to infra-red rays, such as silica, each containing a bed 47 of refractory particles, enclosed in the slumped state by thermally non-conductive walls 50, and supplied with a gas/air mixture at the periphery of the bottom 51, from a manifold 38. Air is supplied by a centrifugal fan 30, which has sound deadening material 31 in its inlet, through an outlet 32 to a mixer supplied with gas through a solenoid controlled valve, so that gas cannot be supplied if the fan is not operating. An igniter 53 is provided at the top of each combustion chamber. The burning gas heats the bed 47 rapidly at first because it is surrounded by walls 50, and as the temperature of the bed rises to the fuel ignition temperature, it becomes fluidized and the particles rise into the transparent tube 45. A metal mesh 44 prevents any particles passing to the flue 27. The tubes 45 may be arranged in front of a reflector, and the rear of each tube may be opaque to radiation. In another embodiment, Fig. 6 a bed 59 is fluidized to lie between inclined refractory walls 78 by burning gas and air fed through a porous block 58 by a fan 68. Gas is supplied to a ring 74 and air is drawn in through dampers controlled openings 63. This embodiment may be used in a fireplace. The particles of the refractory beds may be silica, an aluminium silicate and limestone particles may be added to reduce noise and absorb sulphur. The heaters may be ignited by supplying heated air to the bed before supplying fuel, or the fuel/ air mixture may be ignited below the bed, the rate of delivery being increased when the bed is hot so that the flame migrates through the bed. Since the slumped beds are enclosed by insulating refractory material, the temperature of the particles does not fall below the ignition temperature of the fuel when the heater is turned down. In a heater having a manually operated igniter switch, this is connected to the fuel valve so that if the temperature in the flue is not sufficiently high when the igniter switch is released, the fuel supply is cut off, and apparatus purged with air. Similar heaters may be used in cookers, furnaces or for drying.
Patent GB-1203070-A (GB)
Title: Mold riser height control
Inventor: DRESSEL WILLIAM GEORGE
IPC: B22D2/00
Filed: 1967-10-24
Abstract: 1,203,070. Casting machines. AMSTED INDUSTRIES Inc. 24 Oct., 1967, No. 48328/67. Heading B3F. To ensure a correct amount of metal in feeder holes of a mould 10, Fig. 4, pouring is stopped by an electric switching operation when the melt, in a mould opening, contacts a sensing element such as a float 112, or a rod (152), forming part of an electric circuit with the melt; the element is lowered into the opening to an extent determined by a feeler 130 (or 162) which is moved to engage an external locating flange 44 on the mould drag. A crane 12, Fig. 1, moved along an overhead track 14, may lift moulds 10 successively from a conveyer 11 to a pouring station and back again, e.g. for compressed-air bottom-pouring. The moulds, for railcar wheels, comprise graphite copes and drags with flanged steel end members. The crane has two pairs of legs with feet 62, Fig. 4, for gripping under a mould flange and each pair straddles a mould so that two adjacent moulds are lifted at the same time. The melt-level controlling apparatus is movably guided in a channel support 80 secured to a leg 16 of the crane. The float 112 is suspended by a chain 114 from a see-saw lever 118 to operate a switch 124 when lifted. These devices are secured to a carriage frame 92, 94, 96 vertically reciprocable, in the support 80 and on a guide rod 90, by means of a pneumatic cylinder 102, secured to the support 80, and a piston 104 with rods 106, 108 connected to either end 92, 96, of the carriage frame. The carriage is lowered by the piston 104 until the feeler 130 contacts the mould flange which bears a fixed relationship to the abutting end faces of the cope and drag even when the flanged member has been replaced after resurfacing operations on these faces. The feeler 112 is then in the required position to determine the fill level irrespective of the mould height. The switching it causes when contacted by the melt may not only stop the pouring but also result in the carriage, float 112 and feeler 130 being raised and the crane (12) moved. The mould and the controlling apparatus may be slightly tilted, the float 112 entering a feeder (56) having a liner (58) with a small melt aperture (60). In the other embodiment, Figs. 6-8 (not shown), there are two piston and cylinder devices secured to the crane legs (16), the free end of the rod (152) of one device being the sensing element inserted into an opening of the mould (10) and the free end of the rod (162) of the other device is the feeler for contacting the mould flange 44. Air is passed to the cylinder space (182) above the piston (164) of the latter device to lower the feeler and also to force oil from the space (166) below the piston through a pipe connection [168) to the space (156) above the piston of the other device to lower the sensing rod (152) into the mould opening. When the melt establishes an electric circuit with the rod (152), a solenoid is operated to stop the pouring and reverse the air flow to raise the rods.
Patent GB-1374809-A (GB)
Title: Gas turbine electric power plant control system
IPC: H02J3/42
Filed: 1971-10-20
Abstract: 1374809 Automatic control of gas turbines WESTINGHOUSE ELECTRIC CORP 20 Oct 1971 [20 Oct 1970] 48794/71 Heading G3N The subject-matter of this Specification is substantially the same as that described in Specification 1374810 but the claims are concerned with a gas turbine electric power plant comprises a gas turbine compressor and combustion and turbine elements. A generator coupled to said gas turbine for drive power, a fuel system for supplying fuel to the gas turbine combustion element, means for operating said fuel system to energize said turbine means for generating a feedforward speed reference representation as a function of a predetermined acceleration reference representation, and means for controlling said fuel system operating means in response to the speed reference representation for turbine and generator speed control.
Patent GB-1205599-A (GB)
Title: Improvements in or relating to gas fired water heater apparatus
Inventor: HEWTSCH RAYMOND ALFRED
IPC: F24C15/00
Filed: 1966-07-28
Abstract: 1,205,599. Boilers. WILLIAM SUGG & CO. Ltd. 27 Oct., 1967 [28 July, 1966], No. 48899/67. Heading F4A. In a pressurized gas fired water heater comprising a sealed casing 2 for the boiler unit 4 and a fan 9 supplying air to the casing, the inlet and outlet ducts 12, 8 are connected to the fan 9 and boiler flue 5 respectively through connections 11, 6, permitting angular movement of the ducts, the terminal ends of which are arranged one above the other to form a balanced flue. The pipes 8, 12 are of rectangular crosssection and have cylindrical spigot and socket connections 6, 11. Telescopic end pieces for the pipes 8, 12 extend through a common opening in a wall and permit the lengths thereof to be adjusted to cater for different wall thicknesses. In Fig. 6 the pipe 8 is straight whilst the pipe 12 is cranked. Alternative means 20, Fig. 5, are provided on the pipe 12 to allow for leftorrighthand filling, the connection not in use being blanked off by a cap 21.
Patent GB-1499977-A (GB)
Title: Furnace accessory
IPC: C21B7/16
Filed: 1973-10-19
Abstract: 1499977 Cooling furnace accessories E PEEL and W D JONES 17 Jan 1975 [19 Oct 1973] 48928/73 Heading F4B A liquid cooled furnace accessory such as a tuyere has a body with a cavity 8 in which is disposed a transverse pipe manifold 12a with open-ended branch pipes 13 to direct coolant supplied through the pipe 12b towards the internal face of the nose portion 7. Coolant flows back past the manifold 12a, which acts as a baffle, and out through the hole 14 in the rear wall (10) Fig. 1 (not shown). A further pipe means 11a is transversely disposed in the nose portion with coolant supplied through pipe portions 11b as a further means of cooling the nose portion.
Patent GB-1178937-A (GB)
Title: Electrographic Apparatus
Inventor: SHEPARD STANLEY CARDEN
IPC: G06K15/14
Filed: 1968-10-16
Abstract: 1,178,937. Magnetic printing. STANDARD TELEPHONES & CABLES Ltd. 16 Oct., 1968, No. 49004/68. Heading B6C. [Also in Division G2] The subject-matter of this Specification is similar to that described in Specification 1,120,900 but includes an electromagnet 8 for applying an alternating magnetic field to the fluid powder bed containing magnetized powder used for developing magnetic latent images. An alternating supply is applied to the coil 10 which causes the fluidized particles to be subjected to an alternating magnetic field to increase fluidity and provide an evenly dispersed bed.
Patent GB-1120568-A (GB)
Title: A binary counter
Inventor: LOMAX RONALD WILLIAM
IPC: H03K23/78
Filed: 1966-11-07
Abstract: 1,120,568. Electronic counters, selective signalling. STANDARD TELEPHONES & CABLES Ltd. 7 Nov., 1966, No. 49721/66. Headings G4A and G4H. [Also in Divisions H1 and H3] A binary counter is formed from stages using metal-insulator-metal memory devices having symmetrical negative resistance characteristics. A luminescent reach-out indicator may be provided. In Fig. 7, the memory devices RM switch between high and low resistance states at each successive input pulse and are reset to the zero state by pulses (of amplitude Vc, Fig. 2, not shown) applied to all the terminals RST. The resistors connecting the devices RM to earth could be shunted by or replaced by diodes or non linear resistances so as to effect clipping of the output pulses. The counter may be made by thin film deposition on a single substrate and mounted in an evacuated envelope in which case a layer PS 1 may be located so as to luminesce when struck by electrons from the devices in the low impedance condition whereby the state of the counter is indicated.
Patent GB-1071488-A (GB)
Title: Stabilisation of vinyl halide resins and polyolefins against photodegradation with acyl-dihydroxybenzophenones
IPC: C07C45/46
Filed: 1963-12-17
Abstract: Vinyl halide resin and polyolefine compositions comprises as light stabilizers acyl dihydroxybenzophenones wherein the acyl group has 12 to 30 carbon atoms and is ortho to at least one of the hydroxyl groups, preferably of formula <FORM:1071488/C3/1> where the benzoyl and acyl groups are each ortho to at least one of the hydroxyl groups, n is 1 or 2 and R is a C11- 29 aliphatic radical, an alicyclic radical or a heterocyclic radical. Other stabilizers, e.g. heat stabilizers, such as mild alkalis, lead salts, organotin carboxylates and mercaptides, metal salts of carboxylic acids and phenols, organic phosphite, organic sulphides, epoxy compounds, substituted ureas and thioureas, 2-phenylindole, epoxy compounds, aromatic amines and polyhydric compounds, may also be present and extensive lists of such compounds are given.  The compositions may also comprise plasticizers, parting agents, fillers and pigments, examples of which are given.  Specified resins are vinyl chloride polymers and copolymers with vinyl acetate, styrene, maleic and fumaric acid esters, and mixtures thereof with chlorinated polyethylene and acrylonitrile/butadiene/styrene copolymers, after-chlorinated polyvinyl chloride, and polymers and copolymers of ethylene, propylene, butene - 1, pentene - 1, 3 - methylbutene - 1, 4-methylpentene-1 and styrene.  Many suitable acyl dihydroxybenzophenones are specified and examples describe compositions comprising polyvinyl chloride and (1) 3,5-dilauroyl-2,4-dihydroxybenzophenone and barium/cadmium laurate; (2) 3-lauroyl- and/or 5-lauroyl-2,4-dihydroxy benzophenone, isooctyl epoxystearate, barium nonyl phenolate, cadmium 2-ethylhexoate, zinc 2-ethylhexoate, isooctyl diphenyl phosphite, dioctyl phthalate and stearic acid; (3) various compositions comprising barium/cadmium laurate, dibutyltin maleate and 2,2-bis(p-hydroxyphenyl)propane, dioctyl phthalate, chlorinated polyethylene, isooctyl di-phenyl phosphite, zinc 2-ethylhexoate, barium nonylphenolate, cadmium 2-ethylhexoate, isooctyl epoxystearate and various acyl dihydroxybenzophenones; and (4)3-stearoyl-2,4-dihydroxybenzophenone, sodium carbonate and phenylurea; chlorinated polyvinyl chloride and (3) 5 - stearoyl - 6 - methyl - 2,4 - di-hydroxy-benzophenone, dibutyltin maleate and 2,2-bis(p-hydroxyphenyl) propane; and vinyl chloride/vinyl acetate copolymer and (3) 3- stearoyl - 2,4 - dihydroxy - 21,41 - dipropyl benzophenone, isooctyl diphenyl phosphite, issoctyl epoxystearate and cadmium/barium - 2,4 - dihydroxy - 21,41 - dipropyl benzophenone, isooctyl diphenyl phosphite, issoctyl epoxystearate and cadmium/barium laurate.
Patent GB-1517287-A (GB)
Title: Electric cells
IPC: H01M10/39
Filed: 1974-11-19
Abstract: 1517287 Fail-safe Na-S cell INDUSTRY SECRETARY OF STATE FOR 13 Nov 1975 [19 Nov 1974 24 Dec 1974] 50058/74 and 55767/74 Heading H1B A sodium-sulphur type cell in which the liquid anode is contained in a reservoir 6 and supplies a liquid anode compartment of limited capacity 9 via a flow limiting neons 10 thereby preventing immediate reaction between the entire liquid anode material with the cathode material 5 in the event of failure of the solid electrolyte 2.