baber/WOPTO huggingface dataset:
Patent GB-1246660-A (GB)
Title: Process for the preparation of urea in combination with the synthesis of ammonia
IPC: C07C239/00
Filed: 1968-12-18
Abstract: 1,246,660. Improvements in the production of urea. STAMICARBON N.V. 18 Dec., 1968 [21 Dec., 1967], No. 60248/68. Heading C2C A process for the preparation of urea, in which ammonia produced from nitrogen and hydrogen in an ammonia synthesis reactor is passed to a urea-synthesis reactor and therein reacted with CO 2  to form urea, is characterized in that an NH 3 -, H 2 - and N 2 -containing gas stream derived from the said ammoniasynthesis reactor is passed under elevated pressure into an absorbing zone and therein passed in countercurrent flow to an absorbing agent for ammonia consisting of water or an aqueous solution of urea or an aqueous solution of ammonia and carbon dioxide whereby ammonia is removed from the said gas stream in the form of an ammonia solution and the said ammonia solution is passed to the urea synthesis reactor. The aqueous solution of urea, or of ammonia and carbon dioxide, may normally be obtained from a urea plant. The process may be operated continuously, suitable forms of apparatus being described.
Patent GB-1248670-A (GB)
Title: Improvements in or relating to track brake means
IPC: B61K7/02
Filed: 1969-12-18
Abstract: 1,248,670. Railway track brake rails; guide rails. AUGUST THYSSEN-HUTTE A.G. 18 Dec., 1969 [19 Dec., 1968], No. 61780/69. Heading E1G. [Also in Division F2] In a track brake wherein at least one length of elastomeric rail 1a can be raised relatively to a guide rail 15 to engage the running surfaces of vehicle wheels 14, the elastomeric rail 1a is fixed to a load-bearing support such as a flat steel rail 29 has a cross-sectional area which increases from the top to the bottom. As shown, the side 7 of the element disposed towards the centre of the track is substantially vertical, while the side 6 is inclined at an angle between 10 and 30 to the vertical, the surface 3 being inclined between 5 and 20; alternatively, the element is approximately rectangular in cross-section. The running surface may be provided with longitudinal and/or transverse or oblique grooves. With the brake rail 1a in the lowered position, the running surface of the vehicle wheel 14 does not contact it and the rim 17 of the wheel rolls on the base 18 of the laterally arranged guide rail 15; in the raised position of the brake element 1a, Fig. 6, the wheel 14 of a light vehicle rolls on the surface 3 of the element, and the rim 17 of a wheel of a heavy vehicle bears on the base 18 of the rail 15.
Patent GB-1284559-A (GB)
Title: Improvements relating to photographic apparatus
IPC: G03B17/52
Filed: 1969-12-19
Abstract: 1284559 Photographic apparatus POLAROID CORP 19 Dec 1969 [19 Dec 1968] 61986/69 Heading G2A A camera has a supply of film units arranged in a stack, with means for urging the units forward so that the foremost unit is positioned in the exposure gate, and which also includes a battery, the said urging means at the same time bringing electrical contacts into engagement with the battery terminals. As shown, within the camera is a film pack 25 comprising a container 28 holding a number of film units 30. The forward wall 36 of the container has a rectangular opening 42 through which the exposure is made, and the exposed film units are withdrawn through an exit slot 23. The rear of the container is closed by a flexible sheet 35, and when the container is loaded into the camera and the rear door 31 of the camera closed, a pressure plate 62, attached to door 31 by cantilever springs 64, 66, bears against sheet 35 and urges it forward. A thin planar battery 56, which may power a shutter, flash apparatus, etc, is mounted on a backing member 53, and as shown in Fig. 1, the pressure plate 62 is spring-urged against sheet 35 which in turn presses against battery 56, the pressure thus being transmitted to member 53 and hence to the film units 30. Mounted on pressure plate 62 is an insulating strip 88 which carries two springs 84 and 86 carrying respective contacts 80, 82. These make contact, through an opening 77 in sheet 35, with the terminals of the battery. Wires 90 from contacts 80 and 82 carry the current from the battery to whatever components are to be energized thereby. In the modification of Fig. 3 the battery 56 is carried by the closure sheet 35 instead of the member 53. The biasing means for urging member 53, and hence the film units, forwards is formed by two flanges 96 of a plate 94, the plate being mounted on the camera wall 31 by cantilever springs 98. The electrical contacts 100, 102 are mounted directly on the wall 31, each contact having an internal spring 110. This form has the advantage over the Fig. 1 arrangement that different biasing forces can be applied to the film units and the electrical contacts.
Patent GB-1240229-A (GB)
Title: Finishing of articles
IPC: B24B31/00
Filed: 1969-12-22
Abstract: 1,240,229. Finishing. ROTO-FINISH CO. 22 Dec., 1969, No. 62242/69. Addition to 1,165,006. Heading B3D. The method of the parent Specification is applied to the finishing of parts devoid of cavities &c. likely to entrap the finishing composition, as distinct from the parts to be treated described in the parent Specification.
Patent GB-1224279-A (GB)
Title: Universal joint
IPC: F16D3/205
Filed: 1969-12-23
Abstract: 1,224,279. Universal joints. GELENKWELLENBAU G.m.b.H. 23 Dec., 1969 [27 Dec., 1968], No. 62624/69. Heading F2U. In a universal joint of the type in which partspherical rollers 6 carried by trunnions 5 of one element 4 are axially movable along partcylindrical surfaces on axial arms 2 of the other element 1, the free ends of the arms 2 are engaged by a ring 8 preventing deformation of the arms under load. As shown, the ring has a series of bayonet projections 9 and is locked in position by a screw 11, but the ring may have screw-threaded engagement with the arms. A flexible cover 13 is secured between ring 8 and element 4, and an outer rigid cover 16 encloses rollers 6.
Patent GB-667166-A (GB)
Abstract: 667,166. Focusing devices. CORSI, T.,. and PICCHIONI, L. Aug. 18, 1950, No. 17097/48. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 17, 1950.] Classes 97 (i) and 98 (i). An optical focusing device of the kind wherein a focusing screen for ascertaining whether an image projected by an optical system is exactly focused on a predetermined plane thereof is employed in conjunction with means for displacing the said system relatively to said screen, is characterized in that the screen is formed by or provided with at least one cylindrical lens, the front principal plane of which constitutes or is coplanar with the said plane of the screen. The device may comprise a positive cylindrical lens 3, Fig. 2, accommodated in a recess 2 in a ground-glass screen 1 with its vertex in the plane of the ground surface 1a or a negative cylindrical lens may be formed by cutting a semi-cylindrical hollow in the ground surface of the screen. Two cylindrical lenses 7a, 7b may be provided, Fig. 4, one on each side of the screen 6 forming a unit having its front principal plane coplanar with the ground base 6a of the screen. In another form, two or more cylindrical lenses are used in juxtaposition.
Patent GB-724533-A (GB)
Abstract: 724,533. Locating leakages in electric cables. JOHNSON & PHILLIPS, Ltd. Oct. 1, 1953 [Oct. 14, 1952], No. 25730/52. Class 99 (2). [Also in Group XXXVI] An electric cable system in which the cores 1, 2, 3 are enclosed in a sheath 4 filled with fluid under pressure, has the sheath divided by fluid barriers into a number of subsections a, b, c ... j, and is provided with a number of transfer tubes 5, 6, 7, extending along the system and connected in succession with successive sub-sections. The ends of the tubes are connected together and the common points at each end are connected to pressure gauges fitted with alarm contacts which operate a signal in the event of a leakage occurring in the system. To locate the leak the tubes 5, 6, 7 are isolated, and the tube connected to the leaky sub-section discovered by pressure gauge readings. The tubes are then re-connected at the left hand end and the right hand ends of the tube (e.g. 5) connected to the leaky sub-section and one other tube 7 are closed, fluid being fed at constant pressure to the third tube 6. Differential pressure gauges 10, 11 are connected between tube 7 and tubes 5 and 6. The distance #L from the feeding end to the communication point between tube 5 and the leaky sub-section is then calculated from the formula where L is the total length of the cable P 1  is the pressure difference between tubes 7 and 5 indicated by gauge 10. P 2  is the pressure difference between tubes 6 and 7 indicated by gauge 11. Location of the position of the leak in the leaky sub-section and repair thereof is then effected by known methods.
Patent GB-2000063-A (GB)
Title: Device for cooling of rolled stock
IPC: C21D9/52
Filed: 1978-06-12
Abstract: A device, particularly for wire, light-section steel and the like, which enables a coolant to be supplied forcibly in large quantities to a large section of rolled stock, the coolant thereafter being removed very quickly. The cooling zone is kept very short and the coolant pressure along the length of the device can be controlled by the dimensioning of the device. The rolled stock (10) is guided through a plurality of rods (4) which are arranged around a circle and converge towards an outlet funnel. The same device, if fitted with a sealed jacket (18), can be used in a first zone (a) where coolant is supplied, and in a second zone (b) where the coolant is removed. <IMAGE>
Patent GB-2000759-A (GB)
Title: Plate glass cutting machine
IPC: C03B33/037
Filed: 1978-07-03
Abstract: In a programme-controlled plate glass cutting machine comprising a cutting table for the plate glass sheet to be laid flat thereon, a cutting bridge movable along the table from end-to-end thereof, and a punch-tape controlled means for controlling the bridge and cutting means carried thereby to follow a cutting sequence for optimum cutting of large-format float glass sheets into small-format panes, the cutting means comprises a cutting head which can pivot about a perpendicularly-extending axis and which is driven by a disc-type or disc-rotor-type motor.
Patent GB-2001269-A (GB)
Title: Seaming
IPC: B29C65/42
Filed: 1978-07-19
Abstract: A method of fitting a metal end closure (14) to a tubular foamed plastics body in which an outward flange (18) on the closure is turned around the outside of the body and engages under an outward shoulder (12) at the rim of the body, the material of the body being compressed between the flange and an upstanding annular wall (16) of the end closure. The edges of plastics sheet are seamed by bringing them towards each other, leaving a small gap, and introducing a plastics strip into the groove thus formed. The strip can be directly extruded into the groove so that it welds directly to the sheet edges or the sheets may be preheated so that the strip welds to the sheet edges. A flush seam is produced by reducing the thickness of the edge portions of the sheets and then overlapping these portions and sealing them together. The reduced thickness areas preferably have complementary profiles. <IMAGE>
Patent GB-2003160-A (GB)
Title: Adhesive composition and process for producing adhesive tape
IPC: C09J111/00
Filed: 1978-08-04
Abstract: An adhesive composition for use in an adhesive tape is provided which comprises 100 parts by weight of a lower molecular weight chloroprene polymer having an average molecular weight of 500 to 20,000, 1 to 100 parts by weight of at least one metal oxide, 10 to 150 parts by weight of a tackifying resin and 1 to 30 parts by weight of a curing agent. A process for producing the adhesive tape is also provided which comprises forming a layer of the above composition and then heating and curing the layer such that the layer has a penetration of 1 to 15 mm.
Patent GB-2005645-A (GB)
Title: A process for purifying an aqueous solution of an alkali metal halide for electrolysis
IPC: C25B15/08
Filed: 1978-08-25
Abstract: In a process for purifying an aqueous solution of an alkali metal halide e.g. brine for electrolysis, the solution containing polyvalent ions including calcium ions, phosphate ion is added to the solution in an amount exceeding that which is consumed in the reaction of the phosphate ion with the calcium ions. The pH of the solution is adjusted to the alkaline region to precipitate at least the calcium ions in the solution and the precipitate is removed. Magnesium ions, if present, are also precipitated.
Patent GB-2015934-A (GB)
Title: Improvements in and relating to camping equipment
IPC: B60P3/32
Filed: 1978-09-13
Abstract: The base and side walls of an open box type trailer may be removed and assembled together to form a table top (10) and seats (30, 32, 34 etc). At least two of the side walls are each formed from two similar panels (e.g. 32, 34), which panels are of a size to form individual seats. Stowed within the trailer are leg assemblies (12, 14, 16, 20 etc) for supporting the table top and seats and for connecting them into an integral unit. <IMAGE>
Patent GB-2020775-A (GB)
Title: Improved retaining ring
IPC: F16H55/50
Filed: 1978-10-09
Abstract: A retaining ring for use with a pulley, of the kind having a peripheral groove for retaining a rope or cable, is made of polyurethane. It is initially moulded separately from the pulley cheeks, as a separate and self- contained ring or as two back-to-back half-rings, and is located on the pulley by circumferentially-spaced projections which are cast into the polyurethane ring and which engage in correspondingly-spaced holes or slots cut into the pulley cheek. The locating projection or bosses can be a force-fit or can be drilled and/or threaded externally or internally. Where two back-to-back half-rings are used, rather than a single ring, the axially inner faces or each half-ring may be machined away to accommodate the flexing or spreading movement which inevitably occurs in use at the interface between the two half-rings. A peripherally continuous and radially extending lip may be formed around the axially outer circumference of each polyurethane ring (or half-ring), the lip being stretched into place in use over the axially outer edge of the pulley cheek. <IMAGE>
Patent GB-2011454-A (GB)
Title: Azo dyestuffs
IPC: D06P5/28
Filed: 1978-11-01
Abstract: Water-soluble azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula:   <IMAGE> wherein E is the residue of a coupling component EH, Z represents the remainder of a heterocyclic ring which may be substituted and may have one or more rings fused thereon and X<(-)> is an anion. Dyestuffs are useful for the dyeing of synthetic fibres particularly polymers and copolymers of acrylonitrile.
Patent GB-2009569-A (GB)
Title: Audio signal clipping circuit
IPC: H03G11/00
Filed: 1978-11-28
Abstract: A circuit which provides a control signal to dynamically adjust the level of clipping for an audio signal is described. The criterion for allowable clipping employed by the circuit is whether the clipper induced distortion is noticeable; the clipper induced distortion may be audible, however, remain unnoticeable. A frequency weighted correlation is performed on the audio signal to evaluate the waveform and establish a level of clipping, dependent on the degree of non-periodicity of the signal. <IMAGE>
Patent GB-2011493-A (GB)
Title: Low-Torque Textured Yarn Process
IPC: D02J1/22
Filed: 1979-01-02
Abstract: Spun polyester yarn having an elongation of 55-195% and sufficient torqueless latent crimp to provide a bulk of at least 8% when hot-drawn at 200 DEG C to an elongation of 30%, is draw-textured at above the second order transition temperature producing a drawn textured yarn of at least 250 denier and elongation 10- 45% which is substantially torque- free. Preferably the yarn is draw- textured to an elongation of 20-35% and the drawn yarn denier is preferably at least 350.
Patent GB-2018022-A (GB)
Title: Arrangement for cooling both sides of semiconductor components
IPC: H01L23/40
Filed: 1979-03-27
Abstract: An arrangement for cooling more than one semiconductor component (3, 4, 5) having a plate- or disc-shaped housing and electrodes (25, 26; 27, 28; and 29, 30) on opposite faces thereof, comprises two cooling bars (1, 2) between which the components are clamped. In order to compensate for differences in thickness of the semiconductor components (3, 4, 5), at least one of the cooling bars (1) is provided with cooled compensating bodies (12, 13, 14) which can be moved in openings in the bar in the direction of the semiconductor components. These compensating bodies are thermally and electrically connected to the cooling bar (1) by a sliding fit or a screw connection. The compensating bodies (12, 13, 14) are provided with annular grooves (18, Fig. 3) or with radial bores which communicate with a cooling fluid channel 6. The second cooling bar (2) may be provided with non adjustable inserts similar in construction to the compensating bodies (12, 13, 14). <IMAGE>
Patent GB-2017384-A (GB)
Title: Gramophorie Pick-up arms
IPC: G11B3/18
Filed: 1979-04-10
Abstract: A gramophone pick-up arm assembly includes a pick-up arm 10 which is rotatably mounted on a base member by two bearing assemblies 28,30 each comprising a pair of back-to-back rolling element bearings which are selectively pre- loaded, said pick-up arm being provided with a fluid damper having a damping finger operating in an arcuate viscous liquid bath and with a mounting block for receiving the pick up cartridge. <IMAGE>
Patent GB-2027774-A (GB)
Title: Tool Diverter
IPC: E21B23/12
Filed: 1979-04-24
Abstract: A diverter device for directing pumpdown or through the flowline (TFL) tools through a connector joining a main flowline 11 to at least one branch flowline, 10, includes a diverter member 13 which is pivoted by operation of a removable operator 20 to allow movement of a tool string through a selected branch of the connector. A sealing system at 42 allows removal of the operator 20 complete with shaft 14 without having to depressurise the flowlines joined at the connector. The manual operator 20 can be easily padlocked in either selected operating position, or a hydraulic operator may be utilised to translate linear movement of a hydraulic piston into rotary movement of the diverter. <IMAGE>
Patent GB-2058355-A (GB)
Title: Cardiovascular monitors
IPC: G04G21/02
Filed: 1979-06-21
Abstract: A cardiovascular monitor comprises a watch casing, a timing circuit 3 in the watch casing for supplying timing signals, a transducer 2 on the watch casing for sensing arterial blood pulses and supplying an electric signal in dependence thereon, and electrodes 7 on the watch casing for sensing electrocardiographic R- waves and supplying an electric signal in dependence thereon. A circuit 5 uses the transducer signal and the timing signals to derive an electric signal representing heartbeat rate. A circuit 4 uses the electrode signal, the transducer 2 signal and the timing signals to derive an electric signal representing mean blood presssure. The circuit 4 measures the interval (Fig. 1) between the R wave and the "foot" of the corresponding blood pressure pulse (which interval is inversely proportional to the blood pressure) and from the interval derives the blood pressure signal. A display 6 on the watch casing displays the time of day, the heartbeat rate, and the mean blood pressure. <IMAGE>
Patent GB-2024279-A (GB)
Title: A stiffening shoe inner material, the heel region of a shoe comprising this material, and a process for stiffening the heel region of shoes
IPC: D06N3/10
Filed: 1979-06-26
Abstract: A sheet-form or piece-form, stiffening shoe inner material is adapted for the heel region of a shoe and is capable of being processed thermoplastically or by solvent action, the shoe inner material comprising a single-layer fibrous structure charged or filled with at least one plastics material having a stiffening effect at normal temperature up to about 60 DEG C in a quantity of from 0.1 to 0.9 kg per square metre of fibrous structure. The heel region of the shoe consists of only two layers (upper material and the new shoe inner material) instead of the conventional three layers (upper material, rear cap and slip strap).
Patent GB-2031916-A (GB)
Title: Crosslinked vinyl aromatic polymer granules for liquid chromatography
IPC: G01N30/88
Filed: 1979-09-10
Abstract: The granules are formed from a copolymer of styrene and divinylbenzene having a volume average particle diameter of about 2 to 50  mu m, an exclusive molecular weight for a polystyrene being treated by the granules being from about 500 to 20,000, the weight % (X) of divinylbenzene and the gradient ( alpha ) of the calibration curve of said polystyrene being defined by the following three lines in rectangular coordinates ( alpha , X>  alpha  = 2 DIVIDED 15X + 4 DIVIDED 3   alpha  = 2.5  X = 35 and prepared by suspension polymerization in the presence of an initiator having specific half-life properties, and a polystyrene solvent.
Patent GB-2037614-A (GB)
Title: Disposable filter cell for membrane plasmapheresis
IPC: B01D63/08
Filed: 1979-12-14
Abstract: The cell comprises a pair of flexible sheets (4, 6) facing each other. A pair of membranes (8, 10) is sandwiched between the sheets. A blood flow path (14) is defined between the membranes and plasma filtrate volumes (24, 26) are defined between each membrane and the adjacent sheet. Ports (20, 22, 30) are provided for input and output of blood and for output of plasma from the plasma filtrate volumes. The surfaces 12 of the sheets facing the membranes may be textured or provided with a mesh screen member to form a plasma flow path. <IMAGE>
Patent GB-2041011-A (GB)
Title: Disperse Dyestuff Compositions
IPC: C09K23/52
Filed: 1980-01-14
Abstract: Aqueous concentrates or printing pastes of disperse dyes or disperse optical brighteners contain a dispersing agent which is the product of reacting formaldehyde with one or more mono or di-(C1-12)alkyl substituted phenols optionally together with one or more N-(C12-22)alkyl alkylene polyamines and alkoxylating the condensation product with 30-450 moles of lower alkylene oxide. The compositions give dyeings and printings with excellent colour yield.
Patent GB-2049359-A (GB)
Title: Telephone alarm transmitter
IPC: H04M11/00
Filed: 1980-03-28
Abstract: The present invention relates to apparatus for transmitting an alarm condition, following the occurrence of a state of alarm, by automatically dialling prestored telephone numbers and by the automatic transmission of an alarm message upon receipt of a response to said dialling. The transmitter is used in conjunction with telephones, the numbers of which are pre-stored for dialing, which have a teleprinter connected to them via a MODEM. The transmitted message, coded to meet requirements of the telephone network being used, is such that a readily intelligible message is printed on a teleprinter connected to a responding telephone. The transmitter may be so constructed that the stored telephone numbers as well as other information relating to the content of the message and/or the specific operating procedures of the transmitter may be modified via a MODEM connected to one of the telephones which can be dialled by the transmitter.