baber/WOPTO huggingface dataset:
Patent GB-1502197-A (GB)
Title: Method for covering a pipe-line
IPC: F16L59/15
Filed: 1976-02-13
Abstract: 1502197 Covering pipelines OCCIDENTAL OEL GmbH 13 Feb 1976 [17 Feb 1975] 05700/76 Heading F2P A method of covering a pipeline laid in the ground with a heat insulating and corrosion inhibiting jacket of a mixture of a thermoplastic bonding agent and heat-insulating materials comprises introducing loose granular material into a trench containing a pipeline and applying hot liquid bonding agent to the loose granular material around the pipe to fill the gaps existing in the loose granular material. The loose granular material, which may be 80% bitumen and 20% insulating material (e.g. perlite), may be introduced firstly up to half the height of the pipe and hot liquid bonding agent applied over the pipe and into the loose granular material and after the bonding agent has cooled the remainder of the loose granular material and bonding agent can be applied. The loose granular material may be applied over the entire length of the pipe and the bonding agent be applied continuously along the loose granular material. The hot liquid bonding agent may be bitumen at a temperature of at least 200 C.
Patent GB-1463451-A (GB)
IPC: G01T1/166
Filed: 1975-02-11
Abstract: 1463451 Body scanner CLEON CORP 11 Feb 1975 [4 March 1974 (2)] 5737/75 Heading H4F Apparatus for imaging radiation, from the whole body of a patient, comprises a horizontal patient support above and below which are mounted scanning heads 11, 12, Fig. 3, Each head contains a row of twelve radiation detectors disposed along a line transverse to the longitudinal axis of the support. The twelve detectors reciprocate in unison within the head along the transverse line with amplitude slightly greater than the distance between adjacent detectors, and in such a manner that smooth acceleration and deceleration takes place in the overlap region and constant velocity is maintained for the rest of the cycle, the detectors being inactive in the overlap region. Each detector comprises a lead collinator, a U.V. transmitting filter, a scintillation crystal, light pipe and photomultiplier, and receives radiation from a respective focal point in a line of focal points disposed laterally in the image plane of the patient's body. The heads, with the detector reciprocating therein, are moved slowly, with respect to the transverse velocity of the detectors, along the length of the patient to obtain an image. Digital signals from the detectors are received by a processing circuit, Fig. 7 (not shown) which employs a read only memory in which a reference grey scale is recorded. The signals are analysed and the exposure time of a light sensitive film to the spot of a C.R.T. is thereby regulated. The grey scale is also recorded on the film. The signals are further processed by the circuitry of Fig. 9 (not shown) whereby they are stored: on a magnetic disc; and, in analogue form, in an electrostatic video storage unit for subsequent display on a monitor.
Patent GB-515825-A (GB)
Title: Improvements in and relating to amusement or recreative apparatus
IPC: A63G7/00
Filed: 1939-02-21
Abstract: 515,825. Amusement apparatus. WILKIE, W. H. Feb. 21, 1939, No. 5789. [Class 132 (i)] In amusement apparatus comprising a rail track 6 and a passenger car 3 running thereon having roller and safety bar means which limit the transverse and vertical motion of the car with respect to the track, the safety bar structure is provided with a gap along the length of the track and is adapted to accommodate a shank portion 12 of a flanged roller carried by the car, the flange 13 coming beneath overhanging portions of the gapped structure. The latter is, formed of two bars 15 which extend along the length of the track. Two rollers may be secured to the car along the centre line thereof and these may be. mounted on transverse members 10 secured to the bottom of the car. As additional precaution one or more brackets 16, having projections 17 co-operating with the safety bars, may be secured to the car.
Patent GB-180730-A (GB)
Title: Improvements in needles for repairing knitted fabrics
IPC: D04B17/04
Filed: 1921-02-21
Abstract: 180,730. Ortega, J. M. Feb. 21, 1921. Grant of Patent refused. Darning; hand sewing- tools.-An instrument for repairing ladders in knitted fabrics comprises a latch-needle C, Fig. 1, having a projecting latch e and fitted with a handle. In a modification, both the hook part and the latch are formed with points f, g, Fig. 2, by which a ring of a ladder being repaired is more easily guided between the latch and the hook. The needle may be pivoted to the handle, or the handle may be detachable and shaped to serve as a protective cover for the needle when the latter is not in use.
Patent GB-198080-A (GB)
Title: Improvements in pistons and piston rings
IPC: F16J9/06
Filed: 1922-02-28
Abstract: 198,080. Sullivan, M. H. Feb. 28, 1922. Piston packing. - Piston packing consists of halved rings 4, each expanded by a coil spring 10, Fig. 1, contained in a transverse tube 9, and acting on cylindrical plungers 6 having curved end surfaces bearing on the inner peripheries of the ring segments. The plungers 6 have stems 8 and semi-cylindrical extensions 5 which extend under the ring segments. The joints between the segments are covered by semi-cylindrical blocks 11, Fig. 5, contained in recesses in the piston body. An arcuate rib 13, pivoted to each block 11, engages a circular groove 14 in the under surface of the segments 4, rotation of the packing being prevented by pins 14<a> in the groove. In a modification, the segments 4 are pivoted together at one end, the joint between the other ends being covered by a block 11.
Patent GB-296454-A (GB)
Title: Method of and apparatus for preventing the separation of the constituents of liquid dispersed systems
Filed: 1927-03-03
Abstract: 296,454. Anode Rubber Co., Ltd., (Klein, P., Gotleb, S., Szegvßri, A., and Wilson, G. F.). March 3, 1927. Helico - centrifugal apparatus. - Dispersions particularly of rubber &c., are maintained in a uniform condition by withdrawing the liquid from the surface through a conduit, and returning it to the bottom of the receptacle by means of an impelling device adapted to avoid shock or agitation liable to cause coagulation. A suitable impeller is shown in Figs. 3 and 4, and comprises a cone 9 with helical blades 10, the roots of which extend preferably 180 round the cone. The blades overlap forming channels 11. The liquid is fed to the rotor by a cone 14 and after passing through the channels 11 is discharged between cones 15<a> and 16. Stationary blades 18 in this space check whirling.
Patent GB-608681-A (GB)
Title: Safety device for rotative sustaining means
IPC: B64C27/46
Filed: 1946-02-27
Abstract: 608,681. Rotary-wing aircraft. GAZDA, A. Feb. 27, 1946, No. 6085. Convention date, April 26, 1945. [Class 4] To prevent detachment of a broken bladeend, each blade of a sustaining rotor is made hollow and non-telescopic, and a tie extends through the interior of the blade, one end being attached to the blade tip and the other passing through the blade root and being secured relatively thereto. In the form shown in Fig. 1, the tie consists of a metal rod 21 extending through the tubular spar 20 and the drag hinge, the ends of the rod being formed with retaining heads 22, 24, the latter of which bears against a tensioning nut 23. Alternatively, a small spring may be interposed between the member 23 and the abutment surface of the socket 18 to maintain the tension of the tie member, or this may be effected by a fluidpressure operated piston or spring in the rotor hub to which the tie is attached, Figs. 5 and 6 (not shown). The tie member may consist of two square-section rods placed one on each side of the web of an I-section spar, a flat rectangular strip placed inside a hollow rectangular spar, or a stranded wire disposed inside a hollow triangular spar.
Patent GB-368965-A (GB)
Title: Improvements in and relating to voice-printing apparatus
IPC: G10L15/00
Filed: 1931-02-26
Abstract: 368,965. Typewriters ; optical sound recording and reproducing apparatus. GONDO, H., 515, Kitakamata, Kamatamachi, Ebaragun, Tokyofu, Japan. Feb. 26, 1931, No. 6106. Convention date, March 11, 1930. [Class 100 (iv).] A voice-operated apparatus for the printing of a phonetic language comprises a rotary transparent disc, one surface at least of which is coated with a translucent or opaque layer, together with means for recording sound-wave formations on this layer, and a plurality of light-sensitive devices each of which corresponds to a particular component of the phonetic system, and which operates to select the corresponding sound wave-formation recorded in the translucent or opaque layer and by means of electric relays selectively effects the operation of the keys of a type-printing device. The spoken words are transmitted from the microphone 1 through the transformer 2 and a rheostat volume-control 3 to an amplifier 4, and thence through the secondary of the transformer 5 to a coil 6, vibrating in the field of a strong electromagnet 7. The coil 6 carries a scratching needle which is in contact with the surface of the rotating transparent disc 9 coated with a translucent layer of wax. The vibration is recorded on this layer which on continued rotation of the disc passes between a source of intense parallel light and a number of selenium crystals 12 arranged in shapes which correspond to the wave forms of the components of the spoken words as recorded on the disc. Both poles of each such shape are connected to a relay 13 and serve to attract an armature 17 operating a particular typewriter key on activation of the corresponding selenium cell. Upon continued rotation of the disc, the wax is electrically heated, more wax is supplied, and the scratched trace is erased by a roller.
Patent GB-744616-A (GB)
Title: Air heaters
Inventor: CLARKE ALBERT EDWARD
IPC: F26B21/00
Filed: 1953-03-05
Abstract: 744,616. Liquid-fuel burners. LUCAS (INDUSTRIES), Ltd., J. Feb. 25, 1954 [March 5, 1953], No. 6125/53. Class 75(1). An air heater comprises a cylindrical antechamber b arranged coaxially with and at one end of a cylindrical combustion chamber a, a vapour nozzle and a helical vaporizing tube k mounted axially in the combustion chamber with the vapour nozzle arranged to direct a stream of vapour towards an apertured partition g separating the two chambers and supporting an axial fuel nozzle q of the swirl type in the ante-chamber and ignition means, such as a sparking plug s located in the ante-chamber, the arrangement being that the vaporizing tube k is heated initially by a flame generated in the ante-chamber. Apertures are formed in the wall of the ante-chamber for the admission of air from an annular air chest o surrounding the ante-chamber and supplied through a valve controlled pipe p. The partition g is of truncated conical shape and may be provided with means for turbulating the air passing into the combustion chamber. The air to be heated passes along a jacket c surrounding the combustion and ante-chambers. The combustion products pass through apertures e in the end of the combustion chamber to an annular return duct d disposed within the air jacket c and leading to an outlet f.
Patent GB-993293-A (GB)
Title: Apparatus for feeding ground cereal or the like to animals
IPC: A01K5/02
Filed: 1963-02-15
Abstract: 993,293. Animal feeding appliances. H. VON JEINSEN. Feb. 15, 1963 [April 10, 1962], No. 6159/63. Heading A1M. An animal feeding appliance comprises a storage container 8 embodying a plurality of supply devices 1 having outlets 1a leading to measuring chambers 3b formed by openings in a beam 3a disposed between top and bottom closure members 3c, 5 having apertures that are offset relative to one another, relative displacement of the beam and closure members being effected to discharge foodstuff into a trough. As shown the beam 3a is reciprocated through a rack and pinion 4, 4a, the rack being driven by a motor controlled by a clock so that the feed is dispensed at predetermined intervals. The volume of the measuring chambers is varied by placing inserts e.g. small boards in the openings 3b. In a modification the beam is stationary and the closure members 3c, 5 are movable in opposite directions the upper closure member 3c in this case being separate from the device 1 and comprising an apertured slide. The beam or closure members may be displaced by pneumatic or mechanical means which may act in only one direction, the beam or closure members being returned in the opposite direction by spring means. Provision may be made for wetting the foodstuff as it is discharged into the trough.
Patent GB-820204-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C33/10
Filed: 1955-03-02
Abstract: 820,204. Bearings. CAMERON, A., and ALLEN SONS & CO. Ltd., W. H. June 4, 1956 [March 2, 1955], No. 6187/55. Class 12 (1). In a journal bearing, the upper bearing surface 2 is stepped in the circumferential direction so as to produce a downward hydro-dynamic force on the rotating shaft sufficient to reduce vibration thereof. The upper bearing surface 2 is substantially semi-cylindrical and has its centre 3 lying below the centre of the shaft when at rest. Alternatively, as shown in Fig. 2, the step formation is of part-cylindrical form concentric with the shaft when the latter is approximately central. The ratio of the two radial clearances r1 and r2 is between 1.25 and 10 and preferably their difference does not exceed 0.035 inch.
Patent GB-739186-A (GB)
Title: Improvements in the treatment of cellulose ethers
IPC: C08B11/20
Filed: 1953-03-05
Abstract: Cellulose ethers which are soluble in cold water but insoluble in hot water are converted into products which yield aqueous solutions of reduced viscosity by reacting a suspension of the ether in hot water having a pH between 6.5 and 10.5 with a hypohalite.  The substituent groups in the ether may be methyl, ethyl, hydroxyethyl, carboxymethyl, carboxyethyl, cyanoethyl or sulphonyl ethyl, and more than one such group may be present, as in methyl hydroxy, ethyl, ethyl hydroxyethyl, methyl ethyl or methyl carboxymethyl cellulose. In an example an ethyl hydroxyethyl cellulose which is soluble in cold water but insoluble in hot water is suspended in water at 95 DEG C. to form a suspension having a concentration of about 8 per cent and a pH of 6.9.  Aqueous calcium hypochlorite solution containing 21.8 gm. of active chlorine per litre of solution is added to separate portions of the solution in proportions, based on the weight of the air-dry cellulose ether, corresponding with 0.1, 0.5, 1.0, 2.0 and 3.0 per cent of active chlorine.  In each case the reaction is allowed to continue for 30 minutes, and the viscosity of a 2 per cent aqueous solution of the treated ether is determined at 20 DEG  C.  In other examples methyl cellulose is similarly treated and methyl hydroxyethyl cellulose is treated at 85 DEG  C. with sodium hypobromite in an aqueous suspension adjusted to pH 10 by adding aqueous caustic soda solution.  The viscosities of aqueous solutions of the ethers are reduced to a fraction of the original value by the treatments described in the examples.
Patent GB-1049930-A (GB)
Title: Improvements in and relating to the production of lead steels
IPC: C22C1/03
Filed: 1964-02-14
Abstract: In a process for adding lead to molten steels, the lead is added together with rare earth metals as an alloy or sinter which may be introduced in the form of regular or irregular solid bodies or fragments in the pouring channel, ladle or ingot mould.  The alloy or sinter may have the composition .rare earth metals.2-30% .Pb.70-98% Preferably the rare earth metals consist of a mischmetal obtained by electrolysis of the corresponding chlorides.  The specification refers to the addition of an alloy of 80% Pb and 20% rare earth metals to a steel containing 0.075% C, 0.39% Mn, 0.20% Si, 0.014% P, 0.028% S to give a content of Pb in the steel of 0.23%.
Patent GB-851259-A (GB)
Title: Improvements in explosive charges for generating surface waves
IPC: F42B1/00
Filed: 1959-02-24
Abstract: 851,259. Explosive devices. DU PONT DE NEMOURS & CO., E.I. Feb. 24, 1959 [March 18, 1958]. No. 6415/59. Class 9(1). An explosive device adapted to produce a plane detonation wave front comprises a mass of explosive in which are embedded, in close contact one with another, spherical inert barriers of uniform size such.that a detonation wave can travel from the initiation point through the interstices between the barriers without propagation through the barriers, the shortest paths through the interstices from the initiation point to the remotest surface of the charge being substantially equal in length. The charge is preferably a square pyramid of high explosive E such as PETN, RDX, HMX, pentolite, cyclotol or tetrytol with an electric blasting cap at the apex P 0 . The barriers B may be made of lead, rubber, plastic, glass and wood and their size is determined by the explosive used and the effect required as well as by the material used to make the barriers. To prepare the charge, the barriers may be stacked in a mould and heated prior to pouring molten explosive into the mould. Specification 637,332 is referred to.
Patent GB-608815-A (GB)
Title: Improvements in or relating to mountings for disc coulters for ploughs
IPC: A01B15/18
Filed: 1946-03-01
Abstract: 608,815. Agricultural implements. Mc- CONNEL, F. W., and BOMFORD, D. R. March 1, 1946, No. 6455. [Class 6(i)] The supporting arm of the disc coulter 39 is in two relatively and resiliently adjustable parts 24, 26. The plough standard 10 is formed with a bearing 12 which, with lateral plates 14 and a slotted end plate 15, supports an adjusting screw 13 for a triangular frame 22, 23, 24 supporting the coulter disc. The screw 13 works in the trunnion or bush 20 for a sleeve 21 to which the members 22, 23 are attached. The hollow sleeve 24 encloses the adjustable spindle 34 of the disc fork 35 and has a lug 25 through which passes the part 26 of the coulter supporting arm. At its upper end this is threaded through a block 28 pivoted in trunnions carried by 'the standard 10. The part 26 terminates in an adjusting handle 33 operable against a spring 26.
Patent GB-926461-A (GB)
Title: Improvements relating to valve assemblies
Inventor: SIMMONS ARTHUR WILLIAM
IPC: B60T15/30
Filed: 1960-02-24
Abstract: 926,461. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Feb. 23, 1961 [Feb. 24, 1960], No. 6458/60. Class 103 (1). A fluid-pressure control valve has a pressuresensitive element 37 to establish sealing of a closure member 35 with one 27, or other 28 of two valve seats, the element being movable relative to the closure member from a first position in which a restricted communication 42 between the two sides of the element is open, to a second position in which the communication is closed. The control valve is shown as applied to the quick service exhaust and inlet valve of the direct release triple valve described in Specification 909,616 to eliminate dragging brakes caused by fluctuations of brake-pipe pressure on release. The quick service valve comprises a pressure-sensitive diaphragm 37 carrying a valve housing 36 containing an axially movable closure member 35 urged towards the inlet 28 and exhaust 27 valve seats by a spring 40 of greater strength than a spring 39 which biases the diaphragm 37 in the same sense. A restricted communication 42, 41 across the diaphragm may be closed by movement of the closure member 35 against the spring 40 to contact the seating 43. If during release the diaphragm 12 is deflected, by brake pipe pressure fluctuation, sufficiently to seat the closure member 35 against exhaust seat 27 without detachment from the inlet seat 28, leakage past the seat 28 tends to build up pressure in the quick service volume 31 and, by passage 32a, under the diaphragm 37. The restricted opening 42 has sufficient flow capacity to release this build-up through passage 41 and 34 to atmosphere, the relative strength of the springs 39 and 40 keeping the inlet seating 28 closed and the seating 43 open. With a brake application pressure reduction, the rush of pressure into the volume 31 and chamber 38 when the inlet 28 is opened by upward movement of the diaphragm 12, is greater than the flow through the restriction 42 and the increased pressure below the diaphragm 37 together with the spring 39 overcomes the spring 40 to allow closure member 35 to seal off the valve seat 43 and thus seal the leakage escape path.
Patent GB-959340-A (GB)
Title: Improvements in or relating to passenger-carrying road vehicles
IPC: B62D31/04
Filed: 1962-02-20
Abstract: 959,340. Omnibuses. R. E. COX. May 15, 1963 [Feb. 20, 1962], No. 6478/62. Drawings to Specification. Heading B7B. A rear-engined bus has an entrance door just rearward of a front wheel.
Patent GB-983313-A (GB)
Title: Improvements in microscopes
Inventor: FREEMAN ROBIN JOHN
IPC: G02B21/00
Filed: 1962-02-20
Abstract: 983, 313. Microscope optical systems. VISION ENGINEERING Ltd. June 8, 1962 [Feb. 20, 1962, No. 6526/62. Heading G2J. A microscope comprises an object plane 3 and a viewing plane 5, and an optical system comprising an objective lens system 1 for forming a real image of the object at the principal focus 4 of the field lens system 2 the whole optical system having an exit pupil of such a large area that the freedom of head movement within the pupil eliminates the necessity for an eyepiece. Preferably the lens systems are both negative and the arrangement satisfies the equation:- fo x(z - fv) - fv<SP>2</SP> (x - fo) = o where f o  is the objective system's focal length, f v  is the field lens system's focal length, x is the optical distance between the object plane and the objective, z is the optical distance between the field lens and the viewing plane. Mirrors may be used to bend the light path and a beam splitter 6 may be interposed between the field lens system and 2 and the viewing plane 5 to give binocular vision.
Patent GB-944154-A (GB)
Title: Improvements in or relating to radiation intensity measurement
Inventor: GORLICH PAUL
IPC: G01J3/00
Filed: 1960-02-24
Abstract: 944,154. Measuring radiation intensity. CARL ZEISS JENA VEB Feb. 24, 1960, No.6533/60. Heading G1A. The intensity of radiation falling on a photocathode 1 is measured as a function of the frequency r of such radiation by measuring the current flow J to the anode 2 as a function of the (negative with respect to the cathode) voltage U of an auxiliary electrode 3 and utilizing the relationship |U 0 | = h/e(#r-r o ) where r = the limiting frequency of the photo-cathode, #r = the highest frequency to which the cathode responds, h = Planck's constant, e = the electron charge and O # U # U o . It is stated that the arrangement may be utilized for colour separation in colour television systems by appropriate adjustment of the voltage U.