baber/WOPTO huggingface dataset:
Patent GB-1320885-A (GB)
Title: Method and apparatus for evaluating offshore pipeline laying operations
IPC: F16L1/18
Filed: 1972-03-23
Abstract: 1320885 Testing pipelines BROWN & ROOT Inc 23 March 1972 [28 May 1971] 13665/72 Headings G1M and G1S During the offshore laying of a pipeline 7 from a ship 2, the laid pipe 7a is tested by means of a detector 19 moved through the pipe so that in the event of a fault the pipe may be retrieved by the ship and the fault rectified. The ship 2 carries a pipe tensioning unit 3 which pays out the pipe to the seabed over a guide boom 4 as joints 9 are welded to the end, and which may also be used to retrieve the pipe. A buckle detector 19, Fig.3, comprises a pair of end plates 21, 22 joined by struts 23 and having guide wheels 62 spring urged against the pipeline walls, Fig. 11 (not shown), the forward plate 21 acting as a go/no go gauge as the detector is moved relative to the pipeline by cable 20. To position the detector 19 in the portion 7a of the pipeline flat on the seabed, a compressed air line 26 is applied to the end of a pressure manifold 24, Figs.4 and 10 (not shown). The compressed air acts on pneumatic rams 36 which move locking members 34 to a position in which the pressure line is locked to the detector. The compressed air also acts on pneumatic rams 54 to move drive wheels 42 into contact with the pipeline walls, and on pneumatic motors 49 which drive the wheels 42 to advance the detector along the pipeline, Figs.6, 8 and 9 (not shown). When the detector reaches its desired position the pressure is vented from manifold 24, and the air line 26 pulled out of the pipeline. To move the detector through the pipeline, the cable 24 is either attached directly to the ship, or to an alignment device 10, Fig. 2c, used to align a new joint of pipe 9 with the end of the pipeline during welding, the detector then being moved automatically along as the laying proceeds. Instead of being a mechanical buckle detector as described above, detector 19 may detect cracks or faulty joints, and may operate by means of television, radiology, X-rays or sound waves.
Patent GB-928357-A (GB)
Title: Improvements in or relating to paint rollers
Inventor: GILROY JOHN MALCOLM
IPC: B05C17/02
Filed: 1961-04-15
Abstract: <PICT:0928357/III/1> A paint roller comprises a rubber, fabric covered or other conventional roller member 10 from which the ends of the axle or spindle 11 protrude axially and are supported on limbs 12 of a bracket 13 constituted by a single and appropriately shaped length of metal or other rigid material, the intermediate portions of which are bent upon themselves into a substantially U-shape to be clamped to an end of a shaft or like handle 20 with the limbs 16, 17 of the U-shape extending longitudinally of said shaft or handles. The limbs 12 may be canted with respect to the rest of the bracket 13 so as to lie on a plane at an angle to a plane passing axially of the shaft or handle 20.
Patent GB-259265-A (GB)
Title: Improvements relating to the treatment of threads, fabrics or other materials composed of or containing artificial filaments
IPC: D06M11/65
Filed: 1925-05-26
Abstract: 259,265. British Celanese, Ltd., Briggs, J. F., Kidd, J. T., and Palmer, C. W. May 26, 1925. Yarns and threads, treating with liquids.-Delustred threads, fabrics, &c. of cellulose acetate silk have their lustre completely or partly restored by treatment with an aqueous solution or dilution of one or more solvents or swelling agents for cellulose acetate, which are soluble in or miscible with water, and the goods are afterwards treated for the removal of the water by evaporation without reduction of the ratio of solvent to water in the aqueous solution retained by the filaments. It is preferred to use solvents or swelling agents having a boiling point higher than that of water. Examples of solvents or swelling agents are-acetic acid, phenol, benzyl alcohol, triacetin, cylcohexanone, and ammonium or other thiocyanates. The treatment will be carried out under such conditions as regard concentration of the solvent solution, duration, temperature &c. that in no case will the filaments fuse or stick together or become permanently deformed. It is however possible to work under conditions only slightly removed from such as will produce the above effects. After steeping which preferably is carried out at a temperature not exceeding 30-40‹ C., the goods are dried preferably without rinsing, or with a rapid superficial rinsing only, and preferably at a temperature not exceeding 30-40‹ C.; drying may be hastened by a current of air; final traces of the solvent may be removed by blowing, beating or light scouring. The process is applicable to mixed goods containing cellulose acetate and which have to be subjected to treatments such as dyeing, crabbing or steaming. By a suitable adjustment of the conditions, the lustre may be restored to a modified degree so as to resemble that of natural silk or other fibres. Specification 165,164 is referred to.
Patent GB-127277-A (GB)
Title: Improved Carriage for Guns of Large Calibre.
IPC: F41A23/34
Filed: 1916-09-28
Abstract: 127,277. Schneider et Cie. June 29, 1916, [Convention date]. Field carriages; recoil apparatus.-Comprises a carriage framing of the platform type, the central portion of which is adapted to carry a heavygun mounting, whilst at each end the platform is mounted upon a pair of endless-track wheels. The platform A, Fig. 1, carries centrally a gun mounting B and is supported at each end A<1>, A<2> upon a pair of endless tracks C<1>, C<2> of usual construction. The carriage support comprises a mamber of inverted-T shape, the endless tracks being adapted to rock independently on the journal ends of the horizontal or axle part D of the member. The upright part E of the T-shaped member may be rigidly connected to the platform, but is preferably connected thereto by means of shock-absorbing devices as shown. In this form, the upright E passes through an opening in the platform and carries an upper plate F, from which depend rods G supporting a lower plate H forming an abutment for springs I upon which the platform rests, as shown in Fig. 6. The plate F also carries one element, such as the piston J, of liquid shock-absorbers, the other element of which, such as the cylinder K, is contained in the platform framing, as shown in Fig. 3. At the fore end of the carriage, Fig. 3, the upright E is supported in a footstep bearing in the plate F, so that the T-shaped support may be rotated about a vertical axle in order to steer the carriage. The bearing comprises a pivot pin M supported by Belleville washers, an interposed steel block f<1>, and a sleeve f on the plate F. In the case of the rear end of the carriage, Fig. 6, the upright E is connected to the axle member D by means of a pivotal joint e on the pin d passing through the member D, slotted at the centre. The upright E is extended below the axle D as shown at E<1>, to engage a collar N to which are attached the lower ends of tie rods or struts.0, Fig. 3. At the rear end of the carriage, two pairs of tie members O<1>, Fig. 6, are also connected to the collar N and serve as guides for the axle D. A draft-pole P may be connected to the front axle D. When firing, a brake Q operated by a hand-wheel q is applied to each of the wheels. Specification 19196/08, [Class 79, Locomotives &c.], is referred to.
Patent GB-1409192-A (GB)
Title: Steering wheels for automotive vehicles
IPC: B62D1/04
Filed: 1973-03-22
Abstract: 1409192 Vehicle steering wheels REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 22 March 1973 [28 March 1972] 13874/73 Heading B7J Vehicle steering wheel comprises a rim and sheet metal arms 2 having moulded over it a continuous covering of synthetic material 4 which in the region of the centre of the arms is liftable to allow connection of the arms to a steering column by nut 3. Alternatively the covering may be cut in the region of the centre of the arms and the covering of each arm liftable to gain access to the connecting means. A separate moulding may mask the rear uncovered faces of the arms. The rim may consist of bundles of glass fibres impregnated with polymerizable resin and the synthetic material consist of polyurethane foam. A coating of silicone grease is used to prevent the moulded cover 4 adhering to arms 2.
Patent GB-543679-A (GB)
Title: Improvements in or relating to solenoid operated electric vibrators
IPC: G10K13/00
Filed: 1940-09-06
Abstract: 543,679. Diaphragms. STANDARD TELEPHONES & CABLES, Ltd., and HELLIER, W. H. M. Sept. 6, 1940 No. 13937. Addition to 541,817, [Group XXXVII]. [Class 40 (iv)] [Also in Group XXXVII] In a diaphragm vibrator constructed in accordance with the parent Specification, the diaphragm is of insulating material which may be coated on one or both sides with metal to provide the necessary electrical connection to the contact mounted on the diaphragm. The insulating material may be laminated synthetic resin, bonded sheet, synthetic resin mouldings, ebonite, vulcanized fibre or phenol fibre. In a preferred embodiment it is made of synthetic resin bonded paper board. The metal coating may be hot-sprayed on the insulating material which is prepared for the application by abrasion or by lacquering or varnishing.
Patent GB-1155154-A (GB)
Title: Rotary hydraulic machines
IPC: F04C2/36
Filed: 1967-03-28
Abstract: 1,155,154. Rotary hydraulic pumps and motors. ROCKWELL MFG. CO. March 28, 1967 [March 25, 1966], No. 14027/67. Heading F1F. A rotary hydraulic pump, or motor, comprises a pair of rotors 92, 94 attached to a common power-input, or power-output, shaft 70 supported by bearings 76, 78 at the ends of a casing 22, 34, 36, 48, 50 that includes an inlet and outlet ports 28, 30 for the hydraulic working-fluid, each of said rotors being furnished with two diametricallyopposite lobes or vanes 102, 104 that engage with the inner peripheral-surface 138 of a cylindrical housing 131 for a plurality of rotary abutments 150--153, which are coupled to said shaft by gears 116, 118. The inlet port 30 is connected to ports in the trailing sides of the vanes 102, 104 by passages 184, 186 in said casing and said housing and oblique passages 188, 196 in each rotor, the outlet port 28 being connected to ports on the leading sides of the vanes by further oblique passages 206, 209, an annular chamber 212 circumjacent a sleeve 110 between the two rotors, and a passage 214 in said casing. The generally counter-axial flow of working fluid between the passages 184, 186 and the chamber 212 renders the resultant axial-thrust on the shaft 70 substantially nil. When the machine operates as a motor, the working fluid flows in the opposite direction i.e. from the port 28 to the port 30.
Patent GB-311331-A (GB)
Title: Improvements in or relating to air pressure chambers for feed pumps
IPC: F04B11/00
Filed: 1929-05-06
Abstract: 311,331. Lagendijk, J. P., and Lagendijk, C., (trading as Handelsvennootschap onder de Firma Lagendijk's Agentuur & Commissiehandel). May 9, 1928, [Convontion date]. Void [Published under Sect. 91 of the Acts]. Air vessels.-An air vessel b for a boiler feed pump is connected to a chamber a which contains a float g carrying a valve h controlling an air escape port f. When the liquid level falls, the float opens the valve and allows excess air to escape. The float and valve may be arranged in the chamber b.
Patent GB-671792-A (GB)
Title: Device for excavating shafts in the ground particularly to receive foundation piles of large cross section
IPC: E21B11/06
Filed: 1950-06-06
Abstract: 671,792. Shaft sinking. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON. June 6, 1950. [June 10, 1949] No. 14110/50. Classes 68 (i) and 85. Apparatus for excavating shafts, particularly those to receive foundation piles of large crosssection, comprises suspended from hoist means 6, a support on which is mounted an endless bucket chain 11, 12 and means for driving same. The support consists of a base 17 corresponding in cross-section to the shaft to be sunk, a cage 15 surrounding the bucket chain which projects downwards through an opening in the base, and a cap 8 for said cage. A casing 13 is secured to the base to surround the cage to form a receptacle into which the earth removed by the chain buckets can be discharged. The casing may be omitted and a removable tank provided with separate hoist means. Claws for breaking up the soil are positioned between the buckets and are assisted by air or liquid jetting.
Patent GB-379658-A (GB)
Title: Manufacture of cellulose esters
IPC: C08B3/00
Filed: 1931-06-23
Abstract: Artificial silk or other articles of regenerated cellulose are impregnated with a sodium salt of a weak acid, dried, and esterified to beyond the stage of a mono-ester with an aliphatic acid anhydride, using esterification conditions more energetic than those required when a potassium salt is used.  In an example, viscose silk is immersed for an hour in a saturated solution of sodium acetate, dried, and heated to boiling in a solution of acetic anhydride in xylene.  The process may be applied to the otherwise finished web or to dyed material.  Specifications 343,889 and 353,978 are referred to.
Patent GB-272483-A (GB)
Title: Improvements in the manufacture and production of low boiling-point oils by crackingmineral oils, tars, and the like
IPC: C10C1/20
Filed: 1927-05-26
Abstract: 272,483. I. G. Farbenindustrie Akt.- Ges. June 11, 1926, [Convention date]. Right to Patent relinquished. Hydrocarbons, cracking; hydrogenation, destructive.-In cracking hydrocarbons in presence or not of hydrogenating gases, deposition of carbon on the walls of the retort and on the heating surfaces is avoided by effecting the heating by electrically heated surfaces which are kept in motion, and are entirely submerged in the liquid. Brown coal tar is heated in a wrought iron vessel lined with aluminium to 350-400‹ C. by electrically heated strips of molybdenum mounted on a rotary frame. The molybdenum may be replaced by iron, cobalt, nickel chromium manganese tungsten, vanadium, copper or the noble metals and their alloys. The metals may be heated by an electric current or by induction. The carbon formed is distributed in the liquid in colloidal form. Specification 127,987 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) described a rotary retort containing nickel-chromium balls. This subject-matter does not appear in the Specification as accepted.
Patent GB-750061-A (GB)
Title: Improvements in or relating to radio-transmitters for frequency-shift telegraphy
IPC: H04L27/12
Filed: 1954-05-14
Abstract: 750,061. Frequency-shift telegraph systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 14, 1954 [May 18, 1953], No. 14192/54. Class 40 (5). In a frequency-shift telegraphy transmitter at least one of the transmission stages is blocked, on the cessation of the telegraph signals, by a grid-controlled switch tube operated through a biased diode and a time-constant circuit. As shown, the telegraph pulses at terminals 6 shift the frequency of a generator 4 by means of a variable reactance 5, the generator being coupled to a mixer tube 3 fed also, through the frequency-multiplier 2 from the crystal-controlled generator 1. The mixer output is fed through amplifier 8 to the transmitter output stages 12. In the absence. of telegraph signals the stages 3, 8 are cut off, their screen-grids being earthed through contact a1 of the relay A. When signals occur, they cut off valve 14 and cause diode 17 to conduct to transfer the signals to the grid resistance 18 of valve 21 which conducts to operate the relay A. The time constant circuit 24, 25 across resistance 18 ensures, by the rapid charge of condenser 25, the maintenance of a positive potential at the grid of valve 21 which persists during signal spaces as the discharge period is long due to the high resistance 18. The operation of relay A and contact a1 connects the screen grids of valves 3, 8 to the H.T. supply, through resistance 26 to render the radio transmitter operational.
Patent GB-529105-A (GB)
Title: Improvements in or relating to building bricks
IPC: E04B2/36
Filed: 1939-05-12
Abstract: 529,105. Building blocks. FEITH, W., SOHWARZBART, J., and FISCHER, J. May 12, 1939, No. 14259. [Class 87 (i)] T-shaped bricks 1 comprising a body part 2 and arms 3 are provided with two or more round &c. projections on one side wall of the body part and two or more corresponding recesses on the other side wall, Fig. 2, showing a reversed arrangement of the bricks united by jointing material 4 enabling walls &c. of various thicknesses to be constructed from one size of brick. The ends are completed by corner bricks 5. Projections and recesses are also formed at the ends of the arms.
Patent GB-594758-A (GB)
Title: Improvements in the control of free piston type internal combustion compressors
IPC: F02C5/08
Filed: 1942-10-12
Abstract: 594,758. Free-piston compressors. ENGLISH ELECTRIC CO., Ltd., and WELSH, R. J. Oct. 12, 1942, No. 14307. [Classes 7 (i) and .7 (vi)] In a free-piston internal-combustion compressor or gas generator, (employing in a turbine &c. the exhaust &c. of the motor, to which the compressor supplies air for scavenging &c.) the ignition point is varied in accordance with the inner dead centre position reached by the piston at the end of the preceding engine compression stroke. The piston movement may be communicated by a link 15 and a lever 12 pivoted to the rod of a piston 10, to a servo-valve 13 which acts also as a piston supplying liquid &c. under pressure to a storage vessel 17. The ends of the valve cylinder communicate with a liquid &c. supply vessel 18. The piston controls ports communicating with the vessel 17 and the cylinder of the piston 10. The position of the piston 10 is moved in accordance with the highest position of the valve 13, and so in accordance with the inner dead centre position, and varies the angularity of a cam follower &c. 9 or of the cam itself, thus varying the times of operation of a fuel pump 1.
Patent GB-273873-A (GB)
Title: Improvements in or relating to the construction of vehicle bodies
IPC: B61D17/18
Filed: 1926-06-08
Abstract: 273.873. Eastwood, G. W. June 8, 1926. Drawings to Specification. Bodies of road vehicles, are formed of expanded metal as a means of imparting shape and configuration to the body &c. An external covering of fabric or other suitable material may be provided.
Patent GB-736407-A (GB)
Title: Manufacture of oxo-acylamines of the cyclopentanopolyhydrophenanthrene series
IPC: C07J41/00
Filed: 1952-06-06
Abstract: The invention comprises 3-Oxo-17-acylamines of the cyclopentanopolyhydrophenanthrene series and a process for the preparation thereof by reacting a 3-hydroxy-17-acylamine of the cyclopentanopolyhydrophenanthrene series with an oxidizing agent or by acylating a 3-Oxo-17-amine of the cyclopentanopolyhydrophenanthrene series.  The acyl radical is preferably an aliphatic acyl radical containing up to 5 carbon atoms such as an acetyl, propionyl, butyryl, isobutyryl or valeryl radical. Suitable oxidizing agents are bromoacetamide, chromic acid and mixtures of metal alcoholates such as aluminium alcoholate-particularly the isopro pylate, with a ketone in an inert solvent.  The double bonds of unsaturated reactants should be intermediately protected by means of halogen, e.g. by the addition of bromine with subsequent debromination in the conventional manner such as with glacial acetic acid and zinc dust.  In the examples (1) 3-Oxo-17-acetylamino-D 4-androstene is prepared by brominating 3 - hydroxy - 17 - acetylamino - D 5 - androstene, the resulting dibromo compound is oxidized with chromic anhydride in glacial acetic acid, and the dibromo-keto compound is dehydrobrominated with zinc dust and glacial acetic acid; (2) 3-Oxo-17-acetylamino-D 4-androstene is prepared by oxidizing 3-hydroxy-17 - acetylamino - D 5 - androstene with aluminium isopropylate, and is converted into an oxime derivative by boiling with a solution of hydroxylamine acetate; (3) 3-Oxo-17-propionylamino - D 4 - androstene is prepared by the methods of (1) and (2), and 3-Oxo-17-propionylamino-androstane is prepared by the oxidation of the corresponding 3-hydroxy compound; (4) 3 - Oxo - 17 - acetylamino - androstane is prepared by the oxidation of the corresponding 3-hydroxy compound with chromic anhydride in glacial acetic acid; (5) 3 - Oxo - 17 - acetylamino-aetiocholane is prepared from the corresponding 3-hydroxy compound as in (4); (6) 3-Oxo - 17 - acetylamino - D 4 - androstene is prepared by acetylating the corresponding 17-amino compound with acetic anhydride.  Specification 492,729 is referred to.  3 - Hydroxy - 17 - acylamino - cyclopentanopolyhydrophenanthrene compounds are prepared by (1) subjecting 3-hydroxy-20-ketoximes to the Beckmann transformation in the presence of phosphorus oxychloride and pyridine, e.g. 3b  - hydroxy - 17 - acetylamino - D 5 - androstene is obtained from D 5-pregnene-3b -ol-20-one - oxime; (2) partially acylating the corresponding 3 - hydroxy - 17 - amino compounds; (3) partially hydrolysing 3-acyloxy-17-acylamino compounds with acid or alkali, e.g. 3 - hydroxy - 17 - acetylamino - D 5 - androstene is obtained from the corresponding 3-acetoxy compound and 3 - hydroxy - 17 - acetylaminoaetiocholane is obtained from the corresponding 3-acetoxy compound; and (4) catalytically hydrogenating unsaturated 3-hydroxy-17-acylamino compounds to form the corresponding saturated compounds, e.g. 3-hydroxy-17-acetylamino-androstane is obtained from the corresponding D 5-compound.
Patent GB-630738-A (GB)
Title: Improvements in and relating to high frequency dielectric heating apparatus
IPC: H05B6/78
Filed: 1947-05-30
Abstract: 630,738. Dielectric heating. BRITISH THOMSON-HOUSTON CO., Ltd. May 30, 1947, No. 14434. Convention date, June 1, 1946. [Class 39(iii)] A high frequency heating apparatus comprises a chamber 2 having walls 10 of electrically conducting material and a H.F. generator 8 coupled to the chamber at 9. Two slots 6 are provided in opposite walls 5 of the chamber to accommodate a conveyer 1 which may itself be the material to be heated. The chamber has at least one dimension greater than ¢ wavelength of the frequency of the generator 8, and the slots 6 are provided with a capacitive choke comprising plates 12, 13, to prevent energy radiation at the slots. In a modification the chamber is constructed with a separate bottom plate spaced beneath the conveyer belt.