baber/WOPTO huggingface dataset:
Patent GB-1138033-A (GB)
Title: Railroad vehicles incorporating set-off apparatus
IPC: B61K5/02
Filed: 1967-08-14
Abstract: 1,138,033. Derailers and rerailers. KERSHAW MFG. CO. Inc. 14 Aug., 1967 [3 Jan., 1967], No. 37281/67. Heading B7L. A railway vehicle has a main frame 10, Figs. 6 and 7, supported by wheels 12 for movement along rails 11, for carrying maintenance equipment 13 and incorporates a derailing and rerailing apparatus which comprises (a) an auxiliary frame 17 of inverted U-shape section extending transversely of the vehicle at each end and having support arms 16 pivoted to the frame 10 at 14; (b) a fluidpressure operable piston rod 24 and cylinder 26 pivotally connected at 23 to the frame 17 and at 27 to the frame 10 to impart relative vertical movement between the frames 17, 10 to raise and lower the frames and thus the wheels 12 selectively relative to the rails 11; (c) an auxiliary trackway 32 extending within each frame 17 and disposed to engage the rails 11 when the frame 17 is lowered; (d) an extensible trackway 42 pivotally connected by an intermediate trackway section 36 to the trackway 32 and defining an extension therefor which extends selectively from a retracted position over the rails 11, Figs 1 and 2 (not shown) to the position shown in Fig. 6; the trackway 32 being movable from a position over the rails 11, Fig. 3 (not shown), to a position outwardly of the rails 11 and above the frame 17, Fig. 4 (not shown); and (e) a fluid-pressure operable sprocket 56, rotatable within the frame 17, engaging a chain 34 secured to the trackways 32, 36 and 42, to propel the frames 17 and 10, when the wheels 12 are raised from the rails 11, selectively from a position over the rails 11 to a position alongside the rails 11. The sprocket 56 is driven by a shaft 52, worm wheel 58 and worm 59 from a shaft 61 and fluid-pressure motor 62 connected to the frame 17 by a torque arm 66 and adjustable link 68. During derailing and rerailing, the trackways 32, 36 and 42 are secured to one of the track rails 11 by a hook 72 in turn connected to a bracket 71 on the trackway 42. The latter when extended is supported by a wheel 51.
Patent GB-761116-A (GB)
Title: Improvements in or relating to ground-working implements for use with tractors
Inventor: CHAMBERS JOHN MALET
IPC: A01B63/112
Filed: 1951-04-14
Abstract: The subject-matter of this Specification is identical with that of Specification 761,041 but the claims differ.  Specification 470,069 also is referred to.
Patent GB-1084632-A (GB)
Title: Pigment concentrate
IPC: C08J3/22
Filed: 1964-09-14
Abstract: Mixtures of amorphous ethylene-propylene block copolymers and a crystalline polypropylene or polyallomer having an inherent viscosity of 0.2-1.1 measured as a 0.5% solution in tetralin at 145 DEG  C. are used as carriers for pigments.  The polyallomer is a segmented polymer comprising a crystalline polypropylene segment making up at least 80% by weight of the polymer and a crystalline segment of a different polyolefine making up at least 0.1% by weight of the polymer.  The pigments are incorporated in the carriers either by melt-blending or by blending in the presence of a solvent which is subsequently removed. The resulting pigment concentrates are used for colouring polyolefines.  The examples describe the incorporation of cadmium yellow and orange, titanium dioxide, phthalocyanine pigments and carbon black into carriers.
Patent GB-923173-A (GB)
Title: Improvements in or relating to d.c. restoration in amplifiers
Inventor: CORNEY JOHN VICTOR
IPC: H04N5/16
Filed: 1960-11-01
Abstract: 923,173. Television. FERGUSON RADIO CORPORATION Ltd. Oct. 27, 1961 [Nov. 1, 1960], No. 37545/60. Class 40 (3). [Also in Group XL (c)] The invention is concerned with the problem of ensuring that the D.C. level of a signal of the type which includes regularly recurring pulses whose tips represent the maximum excursion of the signal in one direction, e.g. television synchronization pulses, is correctly maintained during amplification, and relates to an electrical assembly comprising a D.C. amplifier having an output stage coupled to a detector which detects the said tips, and a comparing circuit which compares the detector output with a reference voltage and varies the D.C. bias applied to the input stage of the amplifier in such a manner as to decrease the difference between the compared signals. In one arrangement (Fig. 3), the D.C. amplifier comprises PNP transistors VT2-VT6, the detector comprises PNP transistor VT7 and the comparing circuit includes a source of reference potential-VR and the NPN transistor VT1 which is cut-off when the difference in the compared voltages is positive and which conducts when the difference is negative. VT2 and VT3 are cascaded emitter followers driving the emitter of common base amplifier VT4 which in turn drives emitter follower VT6. VT5 applies feedback to the base of VT4 from the junction of R1, R2 and may be omitted. In a further embodiment (Fig. 4), the output of the amplifier comprising NPN transistor VT8 and PNP transistor VT9 connected as common emitter inverters is detected by NPN transistor VT10 connected to the base of PNP transistor VT11 where emitter is supplied with the reference potential-VR. The bias level of the base of VT8 is thus determined by the current in the resistors R16, R17. Feedback is provided from the junction of R12 and R13.
Patent GB-364799-A (GB)
Title: Composition for use as a furnace lining
IPC: C04B33/02
Filed: 1930-12-13
Abstract: A refractory composition for use as a furnace lining consists of rock sand 112 lbs., cutty clay 27 lbs., fire clay 13 lbs., which is mixed with water.  Rock sand is pulverized "rotten rock," its chemical analysis being given.  The preferred order of mixing is to grind the cutty clay to a fine powder, add the rock sand and regrind, and finally add the fireclay and water.
Patent GB-1105093-A (GB)
Title: Improvements in and relating to pistons
IPC: F04B39/00
Filed: 1965-09-03
Abstract: 1,105,093. Pistons. MASCHINENFABRIK BURCKHARDT A.G. 3 Sept., 1965 [23 Sept., 1964], No. 37776/65. Heading F2T.  A piston for high-pressure pumps and compressors is built up of annular members 3 bolted by a nut 7 on to a central support member 2, the dimensions and modulus of elasticity of the material of the annular members in relation to that of the support member being such that the annular members and support member contract to substantially the same extent in response to operational pressures acting upon their exposed end faces, whereby alternating stresses on the thread 10 of the nut are avoided. When the material of the annular members 3 are of lower or the same modulus of elasticity as that of the support member 2, the cross-sectional area of the support member may be reduced as by a series of grooves 11 or, as illustrated in Fig. 2 (not shown), by reducing the diameter of the support member over part of its length (11<SP>1</SP>); reduction of area may also be achieved by a bore. When the annular members (14), (15), Fig. 3 (not shown), are made of hard material with a high modulus of elasticity, the orosssectional area of the support member (13) may be increased by enlarging its diameter. In Fig. 4 (not shown), the piston is bolted to the piston-rod (1) by a bolt (20) which passes through the centre of the support member and is balanced in relation to the support member by a reduction in cross-sectional area over part of its length. In all the embodiments, a seal 6 is provided below the nut 7 and a pressurebalancing groove 9 provided below the thread of the nut.
Patent GB-1271962-A (GB)
Title: Improvements in and relating to vacuum chambers
Inventor: RATTENBERG VADIM NIKOLAEVICH
IPC: C22B9/04
Filed: 1969-07-29
Abstract: 1,271,962. Vacuum degassing apparatus. SPETSIALNOE KONSTRUKTORSKOE BJURO TYAZHELYKH TSVETNYKH METALLOV PRI GINTSVETMETE and BALKHASHKY ORDENA LENINA GORNO METALL-URGICHESKY KOMBINAT IMENI 50-LETIA OKTYABRSKOI REVOLJUTSII. July 29, 1969, No.37889/69. Heading C7D. A vacuum degassing apparatus comprises a hermetically sealed container arranged for connection to a vacuum source, a spiral channel 2, one end of which is higher than the other, a first pipe 3 extending downwardly from one end of the channel for drawing molten metal to be degassed upwardly into the channel, and a second pipe 4 extending downwardly from the other end of the channel for discharging degassed metal.
Patent GB-1007886-A (GB)
Title: Sheet metal radiator for water circulation central heating plants and method of manufacturing the same
IPC: B21D53/04
Filed: 1964-09-17
Abstract: 1,007,886. Making radiators; punching; stamping. S. SALA, and G. SALA. Sept. 17, 1964 [Sept. 19, 1963], No. 38053/64. Headings B3A, B3Q and B3W. [Also in Division F4] A sheet metal radiator is made of a plurality of equal length sections 1 comprising hollow members of oblong cross-section, a pair of circular coaxial holes are stamped out of the wider sides of the members at each end using a die 12, Fig. 4, having different diameter borings 13 and 14, together with punches 13a and 14a. The walls around the edge of the holes are then die formed (Figs. 6 and 8, not shown) to obtain the shaped projections 25 and 26, Fig. 11. The projection 25 has a cylindrical edge portion 16 which engages the opening 14c in projection 26. The opposing projections 25 and 26 of adjacent members 1 are welded together and the radiator completed with welded end plates 2, closure plates 5 and nipples 6 (Fig. 1, not shown) for connecting the radiator to a fluid circuit.
Patent GB-1019442-A (GB)
Title: Crosslinking polyethylene with aluminium compounds
Inventor: GREGORIAN RAZMIC SARKIES
IPC: C08K5/56
Filed: 1964-09-17
Abstract: Polyethylene is cross-linked by mixing in the absence of oxygen with at least 0.001 gram mole per 100 grams of polyethylene of an aluminium compound AIR3nR12- 2nR111- n (wherein R is aryl, R1 is alkyl, R11 is alkoxy or Cl, Br or I, and n is 0 or 1) and subsequently exposing the mixture to free oxygen, e.g. air. Specified Al compounds are AlPh3, (i-Bu)2Al(i-PrO), Et2Al(i-B i-Pr)2Al(OHexyl), (i-Pr)2Al OEt, (i-Bu)2AlCl, Octyl2 AlI, (i-Hexyl)2AlBr, Et2AlCl, (i-Bu)2AlI, and (i-Bu)2AlCl.  The products find application as pipe, film, sheet and in coating wire or cable.
Patent GB-1485346-A (GB)
Title: Separation of catalyst particles from a suspension
IPC: C01B21/14
Filed: 1975-09-16
Abstract: 1485346 Catalyst recovery STAMICARBON BV 16 Sept 1975 [19 Sept 1974] 38071/75 Headings BID and B1E [Also in Division C1] The separation of catalyst particles from suspension in an aqueous hydroxyl-ammonium salt solution, produced by catalytic hydrogenation in acid medium of nitrogen-oxygen compounds, e.g. nitric oxide or acid or nitrates, is aided by the addition to the suspension of a polymeric flocculating agent, e.g. a polyacrylamide, polyvinyl alcohol, starch or gelatin. The catalyst particles may then be separated by filtration, the presence of the flocculating agent inhibiting clogging of the filter with organic impurities in the reaction mixture. In the Examples the catalyst comprises palladium and platinum supported on porous activated charcoal and used in a phosphoric acid medium, and the filtration is effected using four filter candles of sintered steel. At ten minute intervals, catalyst collected on the filters is returned into the reaction mixture by means of a short pressure pulse.
Patent GB-1439035-A (GB)
Title: Method and apparatus for detecting the presence of signal - components of pre-determined frequency in a multi-frequency signal
IPC: H04Q1/45
Filed: 1973-08-10
Abstract: 1439035 Detecting frequencies AUSTRALIA COMMONWEALTH OF 10 Aug 1973 [10 Aug 1972] 38106/73 Heading G4H [Also in Division H4] The invention relates to the detection of signal components of predetermined frequency in a multi-frequency signal. As described, there are two circuits 30, Fig. 2, which respectively detect the presence of one out of four high frequencies and one out of four low frequencies which together represent a selected digit in a telephone signal, the incoming signal being in pulse code modulated form. Circuit 30 includes identical devices 12-16 each containing a store 18. Each store contains a sequence of numbers representing a squarewave test signal of the frequency to be detected; the numbers may be encoded successive samples of the signal obtained at the sampling rate of the samples comprising the incoming signal, or (in a preferred embodiment) they may be a set of numbers representing the number of successive positive samples and then the number of successive negative samples for each cycle of the signal. The incoming and test signals are multiplied together sample by sample in a device 19 which in the preferred embodiment may be arranged to alter the signs of the incoming samples in accordance with the stored number sequence. A second device 20 is provided for multiplying the incoming signal by the test signal displaced by a phase of other than 0 or #. The multiplied samples are added in respective accumulators 21, 22 and the two resulting sums are fed to a comparator 23 which feeds the greater of the absolute values of the sums to a further comparator 26. This comparator determines which of the four outputs from 12-16 is the greatest, and outputs a signal indicating the corresponding detected frequency. If it is known that only one frequency will be present, then comparators 23 may be omitted. Instead of finding the greatest output, the detected frequency may be determined when an output exceeds a fixed reference value. The comparators 23 may also be replaced by a circuit which adds the absolute values of each accumulated sum, or the squares of the absolute values, and passes the result to comparator 26.
Patent GB-1067487-A (GB)
Title: A transporter
IPC: B60P1/02
Filed: 1964-09-18
Abstract: 1,067,487. Transporting special loads. I. A. GRACIE, R. J. BALDOCK, and H. T. H. ELVIDGE. Aug. 24, 1965 [Sept. 18, 1964], No. 38301/64. Heading B7B. A trailer has a tow-bar 2 and side frame members connected at their rear ends by a detachable wheeled unit 3. The side frames are supported on rollers. 5 when the unit 3 is detached so. that when the transverse supports are detached from the U-shaped supports 7 the trailer may be backed with the side frames on eitherside of the. load. The transverse supports are then inserted under the load and built in jacks raise the side frames so that the wheel unit 3 can be fixed in position to enable the load and trailer to be moved.
Patent GB-1241567-A (GB)
Title: Double-slip points for electric toy and model railway layouts
Inventor: ERNST MAX
IPC: A63H19/32
Filed: 1968-08-12
Abstract: 1,241,567. Points of toy railway. M. ERNST. 12 Aug., 1968 [12 Aug., 1967], No. 38401/68. Addition to 1,241,463. Heading A6S. Double slip points of the parent invention are modified in that the four switch tongues are provided by two unitary double switch tongues 36 and 37 mounted on the conducting plates 12 and 11 respectively and shiftable transversely to the direction of travel. The tongues 36 and 37 are mounted on sliders 34 and 45 respectively which have pins 40 and 41 passing through the base and engaging divergent slots 42 and 41 (see Figure 2) in the U- shaped switch slider 43, movement of which along the direction of the points changes the setting of the points. 51 is a guide member attached to 43 and runs in a slot in the base, while 44 is guide member fixed to the base running between the arms of slider 43. 48 is a diamond shaped locating means attached to the base and is engaged by the spherical parts 46 and 47 of the slider 43, the two arms of the slider being held together against the locator 48 by spring 49.
Patent GB-384748-A (GB)
IPC: B64D33/10
Abstract: 384,748. Metal tubes. COLLINS, T. B., 42, Queen's Square, Strathbungo, Glasgow. Oct. 23, 1931, No. 29425. [Class 99 (ii).] Tubes a for radiators or oil coolers are formed of sheet metal and are of narrow curvilinear cross section with their ends expanded into rectilinear cross section. Specifications 15970/02, [Class 99, Pipes &c.], 16397/03, [Class 7, Air and gas engines], and 270,891, [Class 99 (ii), Pipes, tubes, &c.], are referred to.
Patent GB-1011187-A (GB)
Title: Improvements in or relating to contact-less switches
Inventor: SLATER WILFRED
IPC: H03K17/725
Filed: 1963-10-01
Abstract: 1,011,187. Rectifying. SLATER (TANGENT) Ltd. Oct. 1, 1963, No. 38519/63. Heading H2F. [Also in Division H3] A thyristor used as a switch between a source of alternating current and a load is fired by pulses from a square-wave generator whose frequency is independent of the A.C. source so that the thyristor conducts for alternate halfcycles of the source during the continuance of each firing pulse. In the Figure, a supply transformer 3 has two secondary windings 4 and 5. A load connected at 1, 2 is supplied from the winding 5 through a thyristor SCR. A stabilized voltage to supply the square-wave generator is obtained from the other secondary 4 through the circuit comprising Zener diode 24, resistor R12, rectifier 6 and capacitor C2. Transistors T2 and T3 are connected as a Schmitt trigger circuit which is triggered when the voltage on the capacitor of the R-C timing circuit (capacitor Cl, resistors R1 and R2) reaches a given value. The Schmitt trigger switches transistor T1 which discharges the capacitor C1 until the Schmitt trigger resets, after which the cycle is repeated. The voltage on capacitor Cl is also fed to transistor T4, connected as an emitter follower, which develops a saw-tooth waveform across resistors R7, R8. Transistor T5 operates in switching mode, and conducts when the voltage taken from the potentiometer R7 and resistor R8 exceeds the Zener voltage of Zener diode 23. Consequently, square-wave pulses of a width determined by components R7 and 23 are produced at the collector of T5. These pulses are amplified by transistor T6 and fed to the gate of SCR.
Patent GB-1385412-A (GB)
Title: Central heating system
IPC: B60H1/00
Filed: 1972-08-18
Abstract: 1385412 Central heating systems ELECTROLUX AB 18 Aug 1972 [20 Aug 1971] 38653/72 Heading F4U An unpressurized central heating system, e.g. for a caravan, comprises radiators disposed at a lower level than a gas or oil-fired liquid heater which has a burner 24, Fig. 3, a flue 32 shrouded by a jacket 38 forming a boiler and a riser pipe 39 from which the heated water passes to an expansion vessel 40. The vessel 40, Fig. 4, comprises an upper air-cooled condenser portion 49 from which uncondensed steam is vented to atmosphere through a pipe 41 and a lower, liquid storage and vapour separator portion 44 to which the riser 39 and a down pipe 43 are connected. The upper section of the outer surface of the flue pipe has a portion 57 which is roughened or knurled to increase heat exchange at the upper portion of the boiler and cause steam bubbles to be emitted therefrom. A non- return valve may be disposed in the system and ambient air flows over the boiler, flue and expansion vessel from an opening 55 in the floor of the caravan to pass through an apertured and hinged wall 54 into the space to be heated.
Patent GB-932248-A (GB)
Title: Dehydrated cooked mashed potato product and preparation thereof
Inventor: IRMITER THEODORE FERER
IPC: A23L19/15
Filed: 1959-11-16
Abstract: Dehydrated cooked mashed potatoes possessing a Vitamin C level corresponding to that present in freshly dug raw potatoes are prepared by precooking peeled potato slices, then cooking and mashing the potato slices, adding to the resulting potato mash an emulsifier, an antioxidant, a sulphite solution, and a quantity of Vitamin C sufficient to provide in the dried product a Vitamin C level corresponding substantially to the Vitamin C level present in freshly dug raw potatoes, the Vitamin C and sulphite solution being introduced together into the potato mash separately from the emulsifier and antioxidant, then drying the resulting mixture to flake form.  In a preferred procedure the peeled potato slices are precooked at a temperature of 160 DEG  F. for 20 minutes and are then cooked for 6-10 minutes in steam at a gauge pressure of 15 lbs. per square inch, the requisite amount of Vitamin C in a solution of sodium sulphite and sodium bisulphite was introduced separately from an emulsifier (glycerol monopalmitate), antioxidant (a specified proprietary product) and a quantity of non-fat dry milk solids; Vitamins A, D, E, K, riboflavin and niocin were admixed with the emulsifier prior to its addition to the mash.  The treated mash was roller dried to produce reconstitutable flakes.  An example is disclosed.
Patent GB-974687-A (GB)
Title: Adjustable fishing-rod rings
Inventor: MCMILLEN WILLIAM BRUCE
IPC: A01K87/04
Filed: 1962-10-15
Abstract: 974,687. Line guide fittings. KENT & CO. (TWINES) Ltd. Aug. 19, 1963 [Oct. 15, 1962], No. 38850/62. Heading A1A. A fitting for attaching a guide ring to a fishing rod comprises a single strip of chromium plated brass or stainless steel formed into a first part 11 embracing a fishing rod 10, and a second part 12 forming a guide ring the fitting being clamped on the rod 10 by means of a screw 16 which passes through apertures in ends 1 1a, 12a, of the strip and which engages a threaded block 15 brazed or soldered to the fitting. The second part 12 is swaged around a metal guide ring 13 having a ceramic lining 14. The inner surface of the first part 11 is knurled or serated at 11b.
Patent GB-1517179-A (GB)
Title: Safety means for a sewing machine
IPC: D05B73/12
Filed: 1975-09-22
Abstract: 1517179 Sewing-machines SINGER CO 22 Sept 1975 [23 June 1975] 38850/75 Heading DIG A sewing-machine operable in either a straight-stitch or a zig-zag mode, and which may have alternative throat plates with appropriate needle apertures as 20A for the respective modes, has an operative connection 84, 64, 58, 48 from a lifting/lowering lever 80 of the presser mechanism whereby the needle jogging mechanism 34, 36, 42, 26 may be disabled when the lever 80 is actuated before operation of the machine in the straight-stitch mode, thus preventing breakage of the needle on the straight-stitch throat plate. The zig-zag mechanism is coupled when a member 48 is raised to engage a pin 46 thereon in a bracket 42, the member being spring-biased downwardly to a decoupling position. The coupling member 48 is lifted by a cam 58 which, is biassed into the coupling position by a spring to lift the presser mechanism, however, lever 72 acting on lever 64. When lever 80 is raised 64 and cam 58 are pivoted anti-clockwise by link 84 and are locked in the decoupling position by a latch mechanism 70, 66. When the machine is to be used in the straight-stitch mode and the appropriate throat plate is fitted the parts are held in decoupled position, the latching pawl 70 being loaded by a spring 92. When the zig-zag throat plate 18A is in place, however, a switch 98 is allowed to close by a recess 100 in the throat plate and actuates a solenoid 94 which overcomes spring 92 and allows the jogging mechanism to be recoupled. The actuator 34 of the jogging mechanism may be cam-operated or may have an electromagnetic drive provided with a logic circuit for stopping the mechanism in a needle-centred position.