baber/WOPTO huggingface dataset:
Patent GB-863482-A (GB)
Title: Loading and unloading apparatus for delivering and discharging workpieces from a machine
Inventor: REDMAN ALBERT MAURICE
IPC: B21D43/14
Filed: 1957-09-20
Abstract: 863,482. Endless conveyers. WILMOTBREEDEN Ltd. Dec. 24, 1957 [Sept. 20, 1957], No. 40917/59. Divided out of 863,480. Class 78 (1).[Also in Group XXII] Loading and unloading apparatus for delivering and discharging workpieces from a machine comprises a loading and unloading head having two angularly spaced arms, each adapted to grip a workpiece, the head being pivotable about a horizontal axis between a position in which one of said arms extends in a generally horizontal direction and a position in which the other arm extends in a horizontal direction, the head being also reciprocable in a generally horizontal direction which is perpendicular to said pivot axis. Partially formed car bumper blanks of U cross-section are loaded on to an endless conveyer 30 and are carried thereby to a position above a gripper head 24 on an L- shaped block 18 pivotable about an axis 17. The head 24 is in a vertical position to receive two blanks from the conveyer 30 which is rocked by an hydraulic cylinder 31 to lower the blanks into the head 24, the jaws of which are then actuated to grip the blanks. An hydraulic cylinder 23 then rotates the block 18 through 90 degrees and the conveyer 30 is returned to its normal position. An hydraulic cylinder 15 then moves the block 18 forward to present the blanks to formers 9, to which they are clamped, of a bending machine 11. The block 18 then returns and rotates 90 degrees to its loading position and the hydraulic means 31 causes the conveyer 30 to lower two more blanks to the gripper head 24. The finished blanks are removed from the formers 9 by jaws on the other arm 25 of the block 18 and dropped on to a discharge conveyer 26.
Patent GB-1369732-A (GB)
Title: Apparatus for rapidly controlling the pressure in a pneumatic  brake cylinder of a vehicle brake system
IPC: B60T8/36
Filed: 1972-09-06
Abstract: 1369732 Anti-skid brake systems GRAU. BREMSE GmbH 6 Sept 1972 [17 Sept 1971] 41220/72 Heading F2F Anti-wheel-lock apparatus, controlling the pressure in a pneumatic brake cylinder, comprises a detector 31 for measuring wheel deceleration and acceleration, an electronic controller 32 which generates a plurality of signals to magnetically operable valves 23, 24, 28, 29 associated with two diaphragm valves in series before the cylinder, the first diaphragm valve 8 (an inlet valve) during brake application admitting compressed air to the second diaphragm valve 13 (an outlet valve) until a predetermined wheel deceleration rate is exceeded, whereby the air admission is stopped, the second diaphragm valve admitting compressed air to the cylinder until a second deceleration rate value is exceeded whereby the air in the cylinder is exhausted, the first magnetic valve 23, 24 being in a by-pass leading to one side of the inlet valve 8, the second magnetic valve 28, 29 being located in an exhaust line of a communicating chamber 11 between the diaphragms. Compressed air from a reservoir 1, upon operation of a brake valve 3, passes through a brake pipe 4 to the first diaphragm 8 and acts on the diaphragm to move it from a seating 9 to allow flow to the second diaphragm 13, which disengages a seating 14 allowing air to pass to the cylinder 7 comprising a diaphragm 18 or piston and rod 20 to the brakes. If wheel deceleration exceeds a first predetermined rate, a signal from the detector 31 and controller 32 passes to a magnetic valve 23, 24 which opens to allow air to pass from the brake pipe 4, through passages 21 to equalize pressure on diaphragm 8 to seat it and cut-off flow to diaphragm 13. (The back of the diaphragm 8 is connected to atmosphere via passages 21, 26 when the valve 23, 24 is not operated.) The pressure at the cylinder is now held constant. If, however, deceleration exceeds a second valve and braking prevention is required, a second magnetic valve 28, 29 is operated to exhaust the air in the chamber 11 between the diaphragms 8, 13 via passages 27. This causes the diaphragm 13 to disengage a seat 15 and air from the cylinder 7 to rapidly exhaust to atmosphere via a passage 36. If an intermediate, more controlled, exhausting stage is required upon an intermediate, third deceleration value being exceeded, a third magnetic valve 38, 39 is actuated to allow air to be exhausted via passages 37, one of the passages containing a throttle or restriction. The third magnetic valve 38, 39 may be positioned to allow air in the chamber 11 to be exhausted, Fig. 2 (not shown).
Patent GB-1368106-A (GB)
Title: Servo control systems
IPC: G05D3/14
Filed: 1971-09-03
Abstract: 1368106 Control of position PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Sept 1971 [5 Sept 1970] 41228/71 Heading G4H In a servo-controlled positioning system in which a desired position signal 1 is compared in comparator 4 with an actual position signal derived by measuring system 3, to generate an error signal which drives a motor 7 to control position via gearing 8, to avoid errors due to mechanical disturbances such as backlash, lag and friction, an alternating signal of an amplitude dependent upon the disturbance is added to the error signal. The alternating signal is produced by an unstable loop comprising the motor 7, tachometer 16, and non-linear amplifier 17 which has large amplification for small signals and v.v.; the error and alternating signals are added in adder 18. The measuring system 3 may comprise a photo-cell reading a reflective/ non-reflective graduated scale (Fig. 2, not shown).
Patent GB-1246082-A (GB)
Title: Feedstock clamping arrangement
Inventor: ALEXANDER JOHN MALCOLM
IPC: B21C23/00
Filed: 1967-09-08
Abstract: 1,246,082. Extruding; welding by pressure. NATIONAL RESEARCH DEVELOPMENT CORP. 9 Sept., 1968 [8 Sept., 1967], No. 41248/67. Headings B3P and B3R. A clamping arrangement for clamping a billet 1 being cyclically fed into the pressure chamber 6 of a hydrostatic extrusion apparatus comprises clamping jaws 4 and a segmented tube 7 to separate the jaws from the chamber by a distance l 1  so that when the high pressure in the chamber is greater than the yield stress of the billet the stress in the billet is below the yield stress at the region of the jaws. The segments Figs. 4a-4h (not shown), are moved either by the hydrostatic pressure or independent hydraulic or mechanical means into engagement with the billet. The segments are moved apart after the extrusion to release the billet and allow the billet to be fed into the chamber. The end of each billet is pressure welded to the leading end of the next billet in the tube 7. In a further embodiment, Fig. 5, the billet 34 is clamped by jaws 33 which are applied by opposed plungers 35. The tube 31 is segmented and fitted within a rubber sleeve 32 acted upon externally by the hydrostatic pressure.
Patent GB-1286961-A (GB)
Title: Method of fabricating pliable multi-filamentous plastics strand
IPC: A61L17/14
Filed: 1969-08-19
Abstract: 1286961 Forming, treating and finishing plastics strands SUTURES Inc 19 Aug 1969 [28 May 1969] 41257/69 Headings D1F D1P and D1T Plastics, e.g. polyethylene terephthalate, strands, i.e. unitary structures of monofils or multifilaments which have been twisted, braided, entangled or spun into yarn, thread, suture, string or rope forms, are made by impregnating a multifilamentous plastics strand with a lubricant (which may be physiologically inert) stretching this strand whilst maintaining it at least at the heat-setting temperature thereof, and cooling the stretched strand. The latter may be subjected to repeated flexion, e.g. by passage under tension over a series of sharp edges (as may be provided by guide pins) each positioned to effect at least 30‹ change in direction of the passing strand, in order to cause relative movement between adjacent filaments of the strand. The lubricant may be of mineral origin, e.g. derived from paraffinic, napthenic, asphaltic or mixed base crudes, or synthetic, e.g. complex esters, diesters, monoesters and polyesters prepared from aliphatic or aromatic acidic and alcoholic compounds, or silicone oils of lubricating viscosity, of all of which a large number of examples are specified. The oil may be removed from the final product, as by washing with selective solvents, and conventional dressings, e.g. polyetetrafluoroethylene, may then be applied.
Patent GB-968776-A (GB)
Title: Method and composition for accelerating animal growth
IPC: A23K1/16
Filed: 1962-11-02
Abstract: Growth stimulation in animals, e.g. cattle, lambs and pigs, and improved feed conversion are obtained with feed containing a substance which slows down peristalsis and is preferably specific for smooth gastro-intestinal muscle.  The substances are exemplified by atropine, methantheline bromide, propantheline bromide, aminopentamide sulphate, dibutoline sulphate, dicyclomine hydrochloride, hexocyclium methyl sulphate, isopropamide iodide, methscopolamine bromide, methscopolamine nitrate, oxyphenonium bromide, penthienate bromide, pipenyolate methylbromide, piperidolate hydrochloride, tricyclamol chloride, valethamate bromide, homatropine and eucatropine hydrochloride. The example is concerned with weanling lambs receiving 30 mg. and 60 mg. of propantheline bromide per day. U.S.A.  Specification 2,751,303 is referred to.
Patent GB-1059999-A (GB)
Title: Process for the preparation of epoxy-group containing prepolymers from polyepoxy compounds
IPC: C08G59/68
Filed: 1964-10-12
Abstract: 4 - Oxatetracyclo - (6,2,1,02,703,5) - hendec-9-yl acetoacetate of the Formula A <FORM:1059999/C2/1> <FORM:1059999/C2/2> <FORM:1059999/C2/3> is prepared by reacting the corresponding alcohol with diketene in the presence of triethylamine, isolated by distillation under reduced pressure and purified by recrystallization from alcohol.  Chelates of the probable Formulae B and C are obtained by reacting (A) with <FORM:1059999/C2/4> and with aluminium tri-isopropoxide in xylene. The by-product alcohols are removed by distillation under reduced pressure.ALSO:Curable, fusible, soluble and epoxy-containing prepolymers are manufactured by a process which comprises heating a cycloaliphatic polyepoxide which has a softening point not exceeding 50 DEG  C. with a titanic acid ester or a titanium-containing complex or chelate which is formed by reacting a titanic acid ester with a b -dicarboxyl compound or with an acetoacetate, or with an aluminium alkoxide or an aluminium-containing complex or chelate which is formed by reacting an aluminium alkoxide with a b -dicarboxyl compound or with an acetoacetate, until the desired degree of polymerization, as shown by the reduction in epoxide content of the mixture, has been reached, the reaction being stopped at the latest before gelation sets in. The products are curable with the conventional curing agents for epoxy resins and may be compounded with the conventional additives.  They are useful in the manufacture of laminates, moulding compositions, eddy sinter powders, and insulating materials, and as adhesives and casting resins.
Patent GB-1113427-A (GB)
Title: Slip ring unit for attachment to the rotor shaft of a dynamo electric machine
Inventor: BAKER ALFRED DICKENS
IPC: H02K9/06
Filed: 1964-10-14
Abstract: 1,113,427. Slip ring and cooling arrangements for dynamo-electric machines. JOSEPH LUCAS (INDUSTRIES) Ltd. 6 Oct., 1965 [14 Oct., 1964], No. 41856/64. Heading H2A. [Also in Division G3] In a slip ring unit for a dynamo-electric machine, e.g. a 3-phase vehicle alternator, a pair of slip rings 18, 19 are embedded within a synthetic resin body 59 which may be mounted on the rotor shaft 44 and a fan 61 for cooling the machine is moulded integrally with the resin body. Terminals for connecting the slip rings to the rotor field coil 21 are mounted on the fan in lugs 62, 63 which engage slots (64, 65, Fig. 5, not shown), formed in the adjacent pole member 51 of the rotor so as to provide a mechanical drive between the fan and machine rotor. Alternatively, the lugs may be on the rotor and the slots on the fan. Cooling air is drawn through the alternator from 74 by the fan 61 on the slip ring unit and by an external fan 45 and is expelled via apertures 46. Mounted on an extension 55 of end plate 53 are rectifiers 76 and a voltage regulation circuit 75. Securing the stator plates is accomplished by clips 48 which are arranged within the cooling outlet apertures 46. Voltage regulation of the 3-phase alternator is provided by a transistorized circuit (Fig. 1, not shown), in which when the voltage of the battery connected to terminals (14, 16) rises above a certain level Zener diode (26) conducts and turns ON transistor (25) which cuts OFF transistor (29) so preventing current through the field winding (21) of the rotor. Transistors (25), (29) then oscillate at a rate depending on the current flowing through the Zener diode so as to provide pulses of current to the field winding. A thermistor (35) may be placed near the battery so as to compensate for temperature changes. Contact (82, Fig. 4, not shown), provides a connection for a warning lamp circuit.
Patent GB-1425159-A (GB)
Title: Phenylacetone compounds and their bisulphite adducts
IPC: C07C49/223
Filed: 1974-09-28
Abstract: 1425159 Preparation of phenylacetone compounds and their bisulphite adducts DDSA PHARMACEUTICALS Ltd 28 Sept 1974 42250/74 Heading C2C Compounds of formula are obtained by refluxing a phenylacetic acid of formula with acetic anhydride. The reaction may be carried out in the presence of a catalyst such as anhydrous sodium or potassium acetate, H 2 SO 4 , perchloric acid or pyridine. Examples describe the preparation of 3,4-dimethoxyphenylacetone which is converted to a bisulphite adduct by treatment with sodium bisulphite.
Patent GB-852087-A (GB)
Title: A new thiazolidine, salts thereof and pharmaceutical compositions thereof
IPC: A61K31/00
Filed: 1958-12-31
Abstract: The invention comprises 2-(41-isopentyloxy-phenyl imino)-3-(411isopentyloxy-phenyl-thiazolidine and physiologically tolerable acidaddition salts thereof such as those of mineral acids and perchloric and thiocyanic acids and various organic acids including formic, propionic, glycollic, lactic, pyruvic, oxalic, malonic, fumaric, tartaric, ascorbic, hydroxymaleic, phenyl acetic, amino or hydroxy benzoic, anthranilic, mandelic, phenoxy benzoic, methane sulphonic and naphthalene sulphonic acids, and methionine, tryptophane, lysine and arginine.  The thiazolidine and its salts may be prepared by reacting 1,3-bis(4-isopentoxy-phenyl)-2-thiourea with a strong inorganic or organic acid di-ester of 1,2-ethanediol yielding a salt of the desired thiazolidine from which the free base may be liberated by alkali and from which free base any desired salt may then be prepared.  The reactive ester is preferably used in excess as a solvent.  In an example, a mixture of the thiourea and excess of 1,2-dibromo ethane is refluxed, ether is then added and the precipitated gum is treated with ethanolic ammonia to recover the free thiazolidine which is heated in ethanol with oxalic acid to form the oxalate salt.  The thiazolidine and its salts may be used in antitubercular and antileprotic preparations (see Group VI).ALSO:Pharmaceutical preparations having anti-tubercular and anti-leprotic properties comprise an active ingredient 2-(41-isopentoxy-phenyl-imino)-3-(41-isopentoxy phenyl) thiazolidine or a physiologically tolerable acid addition salt thereof and a pharmaceutical carrier suitable for enteral or parenteral administration.  Salts specified include those of hydrochloric, hydrobromic, nitric, sulphuric, phosphoric, perchloric, thiocyanic, formic, acetic, propionic, glycollic, lactic, pyruvic, oxalic, malonic, succinic, maleic, fumaric, malic, tartaric, citric, ascorbic, hydroxymaleic, dihydroxy maleic, benzoic, phenyl acetic, 4 - amino benzoic, 4 - hydroxy benzoic, anthranilic, cinnamic, mandelic, salicylic, 4 - amino salicylic, 2 - phenoxy benzoic, 2 - acetoxy benzoic, methane sulphonic, ethane sulphonic, hydroxyethane sulphonic, benzene sulphonic, toluene sulphonic, naphthalene sulphonic and sulphanilic acids and methionine, trypto-phane, lysine and arginine.  The carrier may be a solid or liquid inorganic or organic material, numerous examples being given.  The preparations may be in the form of tablets, dragees, capsules, solutions or emulsions.  They may also comprise other therapeutic substances and stabilising, preserving, wetting or emulsifying agents.
Patent GB-915014-A (GB)
Title: New copper-containing monoazo dyestuffs
Inventor: STEPHEN WILLIAM ELLIOT
IPC: C09B45/48
Filed: 1959-12-14
Abstract: The invention comprises the copper complexes of monoazo dyes which in the form of the free acids are of formula:-  <FORM:0915014/IV (b)/1> wherein R is a hydrogen atom or alkyl radical, Y is a halogen atom and Z is a hydrogen or halogen atom or an alkyl, alkoxy or nitro group.  They are prepared by condensing at least 1 mole of a cyanuric halide with 1 mole of a copper complex of an appropriate aminoazo dye.  The dyes give reddish violet shades on cellulose fibres and are applied in conjunction with an acid-binding agent. In an example the dye 4-chloro-5-nitro-2-amino-phenol-6-sulphonic acid --> 2-amino-5-naph-thol-1 : 7-disulphonic acid is prepared, coppered and condensed with cyanuric chloride.  Further examples are given. Specifications 797,946, 838,337 and 842,933 are referred to.
Patent GB-946506-A (GB)
Title: Furnace
Inventor: COOK LESLIE
IPC: C21C5/42
Filed: 1961-11-28
Abstract: 946,506. Refining ferrous metals. BRITISH OXYGEN CO. Ltd. Nov. 28, 1962 [Nov. 28, 1961], No. 42431/61. Heading F4B. A furnace for melting and subsequent treatment of ferrous metal comprises a substantially cylindrical refractory-lined vessel having an internal depth greater than its mean internal diameter, and a pouring spout in the upper part of the side wall, and provided with a removable refractory-lined lid having one or more apertures through which burners, lances, or jets, may be passed in order to melt or refine the metal. The vessel may have a circular or elliptical transverse cross-section, may have a slight axial taper, and may have a partially or fully rounded bottom. As shown, the vessel 2 rests on a concave roller bed, but trunnion mountings may alternatively be used. The lid 6 is supported by arms 10 to pivot about a vertical post 11 when the burner or jet 9 has been raised clear of the aperture 8. The burner employs oxygen with a gaseous, atomized liquid, or powdered solid fuel, and after melting, may be used to inject oxygen and powdered flux.
Patent GB-1128077-A (GB)
Title: Rotary atomisers for the combustion of aqueous coal suspensions and applications thereof
IPC: F23D1/00
Filed: 1966-09-23
Abstract: 1,128,077. Rotary atomizers. BERGWERKSVERBAND G.m.b.H. 23 Sept., 1966 [7 Oct., 1965; 10 June, 1966], No. 42438/66. Heading F4T. A rotary atomizer for use with an aqueous coal suspension comprises a distributer head 11 surrounded by funnels 12 and 17, and all being rotatable coaxially within an annular air jet 14. Ducts 15 and 16 lead the suspension to the head and it is distributed by holes 12A and 17A to funnel 12 and the annular space between the funnels respectively. The rotatable components are mounted on a shaft 19 by which they are driven at 6000 r.p.m. and a pressure atomizing nozzle 23 mounted on the head is fed by a bore 22 within the shaft. The nozzle 23 produce3 a hot gases vortex in the funnel 12, to promote combustion. A ring 20 mounts air guide fins 21. In a further embodiment, Fig. 1 (not shown), there is only one funnel (2) and blades (9) on the forward end of the head draw hot gases from the fire box to promote combustion. Pulverized coal in air may be fed through the annular air jet during starting and partial-load conditions.
Patent GB-1483817-A (GB)
Title: Signal recovery systems for vortex type flowmeters
IPC: G01F1/32
Filed: 1974-10-01
Abstract: 1483817 Measuring fluid-flow electrically FISCHER & PORTER CO 1 Oct 1974 [1 Oct 1973] 42641/74 Heading G1N [Also in Divisions H3-5] To compensate the output signal of a vortex street flowmeter for signal fading due to random interruptions in the vortex shedding arising in the flow, there is provided an electronic flywheel circuit for maintaining the signal for the duration of such fading. The flywheel circuit comprises a voltage controlled oscillator VCO, 20, which provides the output signal to meter I and which is controlled by an adder 19 which receives a coarse control signal from a frequency-voltage converter 18 and a fine control signal from phase detector 23. For the VCO to be effective, synchronization of the oscillator frequency with the fundamental frequency provided by the electrical sensor in the flowmeter, must be fast on small input deviations and the decay must be relatively slow in the absence of an input. The two time constants required are provided respectively by the capacitor 26 in its filter network in the phase detector and by the capacitor 25 in the adder 19. The input signal from the sensor is applied to an automatic gain control amplifier 14 (see Division H4) which has a characteristic as shown in Figure 4. Signals from the amplifier are fed to the phase detector 23, which provides a control voltage to the VCO if the signals from the AGC amplifier are not correctly synchronized with those from the VCO, 20, via counter 22. The amplifier output signals are also supplied to a Schmitt trigger 15, for squaring, thence to frequency doubler 16 whose output is converted into a voltage proportional to the applied frequency by a frequency-voltage converter 18 and one shot stage 17. The output of the converter is applied to the adder 19. As shown in Fig. 7 if the output from the amplifier 14 is correctly synchronized e.g. at 90 degrees phase shifted relative to the counter output, then the closed and open periods of switches 40, 42, respectively receiving the amplifier 14 output signal directly and via an inverter 41, will be symmetrically phased relative to the positive and negative excursion of the input signal. Thus there will be a zero signal output on the fine control input to the adder 19. Departure of the phase relation from synchronism will produce a positive negative control signal to the VCO. If the frequency of the VCO falls below a given value a zero-flow cut-off stage arrests the output.
Patent GB-1181407-A (GB)
Title: Manufacture of Step Units
Inventor: HELLSTROEM NILS ARNE
IPC: B28B7/22
Filed: 1967-09-21
Abstract: 1,181,407. Moulding step units. S. T. ERIKS BETONG A.B. 21 Sept., 1967, No. 43063/67. Heading B5A. [Also in Division El] Concrete step units 1-6, each comprising a riser portion 10, a tread portion 11 and a foot or support section 12, are formed by cutting a continuous strip of cast concrete along lines 13, 14 to induce opposed flat riser and tread surfaces, and along lines 17, 18, which cut surfaces may then be ground. The concrete may contain chips or pieces of slab of decorative stone material or they may be dyed or marbled. Reinforcing elements may be located in the step end walls, if provided. The step units may also be solid.