baber/WOPTO huggingface dataset:
Patent GB-822620-A (GB)
Title: Lubricating oil additives
IPC: C08F220/18
Filed: 1956-08-15
Abstract: A lubricating composition comprises a lubricating oil such as a petroleum base oil or a sebacate and up to 10% by weight of a copolymer of an N-vinyl pyrrolidone and an oleophilic ester containing olefinic unsaturation, in which ester oleophilic characteristics can be conferred by either the alcohol or acid moiety of the ester, the average length of the oleophilic alcohol or acid moiety of the ester ranging from 6 to 18, preferably 12 to 18, carbon atoms, and the N-vinyl pyrrolidone constituting from 5 to 50% by weight of the copolymer (see Group IV (a)).  Preferred copolymers are those of N-vinyl-2-pyrrolidone with an acrylate or methacrylate of lauryl, myristyl, cetyl or stearyl alcohol or of commercially available mixtures thereof, or with vinyl caprylate. In an example, the copolymer also incorporates n-butyl methacrylate.  A coating process comprises pouring on to an aluminium sheet a viscous mass obtained by copolymerizing N-vinyl-2-pyrrolidone and the acrylic acid ester of a C12-14 alkanol mixture in the presence of toluene, followed by baking for four hours at 150 DEG  C. Aluminium and glass may be coated in a similar manner with a copolymer of N-vinyl-2-pyrrolidone and vinyl caprylate.ALSO:Relates to oil-soluble copolymers of an N-vinyl pyrrolidone and an oleophilic ester containing olefinic unsaturation, the oleophilic characteristics of the ester being conferred by either the alcohol or acid moiety of the ester, the average length of the oleophilic alcohol or acid moiety of the ester ranging from 6 to 18, preferably 12 to 18, carbon atoms, and the N-vinyl pyrrolidone constituting from 5 to 50% by weight of the copolymers.  The N-vinyl pyrrolidone may be N-vinyl-2-pyrrolidone or a 3-methyl-, 5,5-dimethyl-, 3,3,5-trimethyl-, 3,5,5-trimethyl-, 3,3-dimethyl-5-alkyl-, 3,3-dimethyl-5-alkenyl- or 3,3-dimethyl-5-methoxy-N-vinyl pyrrolidone.  The ester may be an acrylate or methacrylate of lauryl, myristyl, cetyl or stearyl alcohol or of commercially available mixtures thereof, or may be vinyl caprylate.  Other monomers such as n-butyl methacrylate may be incorporated in the copolymer.  Polymerization may be effected in solution in toluene, a heavy hydrocarbon oil or a chlorinated hydrocarbon, in the presence of a catalyst such as benzoyl, lauryl or acetyl peroxide, diisopropylbenzene or tertiary butyl hydroperoxide, azodiisobutyronitrile or a mixture of a hydroperoxide with a quaternary ammonium compound.  The polymerization reaction may be stopped at a desired degree of polymerization by quenching with a solvent such as an oil.  During the polymerization reaction a solution of catalyst in the solvent used may be added incrementally. The copolymers of the invention may be used as oil additives or to produce coatings which adhere to aluminium and glass.
Patent GB-296415-A (GB)
Title: Electron valve with indirectly heated cathode
IPC: H01J1/20
Filed: 1928-08-31
Abstract: 296,415. Loewe, S., and Roemhild, E. Aug. 31, 1927, [Convention date]. Vacuum tubes.-The straight heating-wire 1 is centred in a narrow indirectly-heated tubular metal cathode 2 by insulating material located at the ends of the tube, in such a way that it radiates heat directly to the cathode tube. The material may be in the form of plugs 3 or of a ring 8 placed between an end disc 7 and a flange 5 on the tube these parts being wheel-shaped as shown in Fig. 2, the spokes 4, 6 of which are placed out of register to increase the insulation path. Specification 289,860 is referred to.
Patent GB-500378-A (GB)
Title: Improvements relating to tiles for use in sewage filters
IPC: C02F3/04
Filed: 1937-09-15
Abstract: 500,378. Tiles for filter beds. TUCKER, J.E. Sept. 15, 1937, No. 25051. [Class 87 (i)] A filter bed tile comprising a substantially flat upper surface 1 having apertures 5 and supported on pillars is provided with reinforcing bars 6 extending between the apertures. 5, along the sides of the tile and down the pillars 2. Recesses 3 may be formed in the tile edges. Specifications 8590/08, [Class 46], and 16228 /10, [Class 87 (i)], are referred to.
Patent GB-1133763-A (GB)
Title: Side trimming shear and knifehead assembly
Inventor: O'BRIEN JEREMIAH WAGNER
IPC: B23D31/04
Filed: 1965-06-14
Abstract: 1,133,763. Dividing by a single cutter. UNITED ENG. & FOUNDRY CO. 3 June, 1966 [14 June, 1965], No. 25135/65. Heading B3W. An edge-trimming shear having two cooperating disc cutters 10 and 12 has a roller cutter scrap-shear for dividing the trimming into short lengths. The scrap-shear cutter is mounted on the same arbor 13 as one of the discs 12 and co-operates with a drum 16 which is mounted on the same arbor 11 as the other disc. The cutter assembly comprises the arbor 13, a sleeve 22 which is keyed to the arbor and a ring 24 in which are mounted four wedgeshaped cutters (26), Fig. 3 (not shown). The sleeve 22 has recesses 32 and the ring 24 has projections 33 which co-operate in the manner of a dog-clutch, but the projections are narrower in width than the recesses and a rubber packing piece 34, Fig. 4, is inserted on each side of each projection. A shroud ring 36 surrounds the inserts, so that the cutter ring 24 has limited rotational freedom relative to the sleeve 22. This movement accommodates the slight difference between the linear speed of the work material, which is equal to the peripheral speed of the disc cutters, and the effective speed of the scrap cutter blades, which at the beginning and end of their arc of contact with the work material, is slightly less than that of the material.
Patent GB-609032-A (GB)
Title: Short wave antenna
IPC: H01Q11/04
Filed: 1945-09-27
Abstract: 609,032. Aerials. LONGO, G. Sept. 27, 1945, No. 25138. Convention date, May 8. [Class 40 (vii)] A vertical aerial giving a circular radiation pattern in the horizontal plane with a narrow angle of spread in the vertical plane comprises two similar pairs of conductors lying in vertical planes at right-angles to one another, the conductors of each pair being arranged in zig-zag form as shown in Fig. 1. The conductors of each pair are symmetrical and cross each other as shown, being insulated from each other at the points of cross-over, or arranged in slightly displaced planes. The conductors are fed at the base, or at the centre, the currents in the conductors of a pair being in phase opposition and the currents in the two pairs being equal and in phase quadrature relatively to one another. The conductors terminate in rigid vertical sections An - An+ 1, Bn - Bn + 1 of length equal to a quarter-wave length. The lengths of the cross-over sections A1 - A2 ... An - 1 - An and of the sections adjacent the point of feed is equal to half-a-wave length measured in the conductor material. The width p, q of the plane in which each pair of conductors lies is of the order of one-sixth of the radiated wave-length. Suitable supporting insulators may be arranged at the voltage nodes.
Patent GB-913943-A (GB)
Title: Steroid compounds
IPC: C07J5/00
Filed: 1959-07-22
Abstract: The invention comprises steroids of the general formulae <FORM:0913943/IV (b)/1> wherein X represents hydrogen or a halogen, W represents keto or hydroxy, and Z represents a - or b -alkyl, and the preparation of the 21-methane sulphonates by reacting the corresponding 21-hydroxy compounds with methane sulphonyl halide, the preparation of the 21-iodo compounds by reacting the 21-methane sulphonates with an alkali metal iodide, and the preparation of the 21-unsubstituted compounds by reducing the 21-iodo compounds, e.g., by means of hydrogen in the presence of a hydrogenation catalyst such as platinum, nickel or palladium or an oxide thereof, or chromous chloride, or an alkali metal bisulphite. The above processes may be modified in that the 16a -methyl-4-pregnenes and 1,4-pregnadienes used may be prepared by a process claimed in Specifications 877,085 and 877,086 respectively, and the 16b -alkyl compounds used in the above process may be prepared by a process claimed in Specification 906,443.  Therapeutic compositions contain as the active ingredient 21-unsubstituted steroids of the above general formulae.  The compositions are suitable for the allevation of arthritis and related diseases.
Patent GB-945452-A (GB)
Title: Explosive bonding of metal tubes
IPC: B23K20/08
Filed: 1962-06-29
Abstract: An explosive composition comprising 20% very fine pentaerythritol tetranitrate (PETN) 70% red lead and as a binder 10% of a 50/50 mixture of butyl rubber and a thermoplastic terpene resin (mixture of polymers of b -pinene of formula (C10H6)n) is extruded into a cord for positioning inside a pair of concentric tubes to be explosively bonded.  U.S.A. Specification 3,093,521 is referred to.
Patent GB-964558-A (GB)
Title: Improvements in or relating to benzo-indenes
IPC: C07C51/487
Filed: 1962-07-02
Abstract: The invention comprises the ephedrine salts of both the dextro-rotatory and laevo-rotatory enantiomorphs of 1b -hydroxy-3-carboxy-6-methoxy-9ab -methyl-1, 2, 3a, 8, 9, 9a-hexahydro-D 3(3a)-benzo-[e]-indene, and a process for the resolution of a racemate of 1 b -hydroxy-3-carboxy-6-methoxy-9ab -methyl-1, 2, 3a, 8, 9, 9a-hexahydro-D 3(3a)-benzo-[e]-indene by directly reacting said racemate with ephedrine in an aqueous medium, or by indirectly reacting said racemate with ephedrine by the formation of the water-soluble salts of ephedrine and the racemate and then reacting metathetically in an aqueous medium, separating the precipitated ephedrine salt of the dextro-rotatory enantiomorph and acidifying the salt to liberate the free dextrocompound, and acidifying the aqueous medium remaining after precipitating the ephedrine salt of the dextro-rotatory enantiomorph to precipitate the laevo-rotatory enantiomorph.  In the indirect process the water-soluble salt of the racemate may be an alkali metal salt, and the water-soluble salt of ephedrine may be a salt derived from a strong mineral acid such as a hydrochloride or sulphate salt.
Patent GB-682501-A (GB)
Title: Electrical organ
IPC: G10H1/12
Filed: 1946-08-23
Abstract: 682,501. Electrophonic organs. MARTIN, C. Aug. 23, 1946 [Oct. 23, 1943], No. 25284/46. Class 88 (ii). Each key of an organ controls (over contact C') the H.T. supply to an oscillator valve KGP and (over contact C<SP>2</SP>) the feed of the oscillations from a secondary winding K<SP>1</SP> of an output transformer to' an amplifier e and loudspeaker f through a harmonic selector of the kind described in Specification 643,846. The harmonic selectors are controlled by sliders. The windings K<SP>2</SP> K<SP>3</SP> of the transformers are provided for simultaneous operation of different stops on different loudspeakers. The organ may have more than one manual a' a<SP>2</SP>, Fig. 6 controlling oscillators b coupled through coils c to harmonic selectors d. Each oscillator unit comprises a valve KGP and a coil S wound on a laminated E- shaped core 3. The tuning of the oscillator can be varied by adjustment of a soft iron blade 11 pivoted on a rod 6. The secondaries such as K', K<SP>2</SP> are slidably mounted along with the primary L on a laminated core 16 so that the coupling may readily be adjusted. A number of oscillator units may be mounted on a common base 1.
Patent GB-243872-A (GB)
Title: Improved apparatus for instantly killing rabbits, hares and the like animals
IPC: A01M23/34
Filed: 1924-10-25
Abstract: 243,872. Barnes, A. Oct. 25, 1924. Animal traps. - A rod 1 of spring steel is formed into a helical spring 2 midway of its length and has one end secured to a spike 3 provided with a hook 4 adapted to engage a hook 5 at the lower end of a locking member 6' rotatably mounted in a bearing in the other end of the rod 1. The end of the member 6 is provided with a slotted head to which the end of a wire noose 8 is attached. An eyelet 9 in the noose prevents complete closing. In operation the animal engaging the wire turns the member 6 and releases the spring member 1 which jerks the noose upwards and closes it. In a modified form the wire of the noose passes through a slot formed in the end of a bent extension at the upper end of the member 6; a nut adjustable along a screwed portion of the member 6 may abut against the end of the rod 1; in a further modification the position of the member 6 is adjustable by nuts which may be screwed along it, these nuts being situated on each side of the rod 1.
Patent GB-1161401-A (GB)
Title: Operating Mechanisms for Electrical Circuit Interrupters
Inventor: BURDETT EDWARD RAYMOND
IPC: H01H3/56
Filed: 1965-06-16
Abstract: 1,161,401. Electromagnetic switches; vacuum switches. ENGLISH ELECTRIC CO. Ltd. 15 Sept., 1966 [16 June, 1965], No. 25493/65. Heading H1N. A vacuum switch 13 is operated by an electromagnetic operating device 24 such as that shown in Specification 884,726 (Division XXXV), and is provided with an electromagnetic coupling between the switch and operating device enabling the switch to be opened while the operating device is in the closed position. The operating device is bi-stable, one or other of a pair of rectilinearly movable armatures 22, 23 being attracted to a permanent magnet assembly 21, and is changed over to its other state by energizing flux diverting coils for a short while. Upon a power failure, which would render the device 24 inoperative, a coil 29, wound on a core 26 attached to the vacuum switch envelope 13, is de-energized and releases an armature 25 attached to the housing of the operating device 24, allowing the casings to separate under gravity and open the contacts. The assembly can be reset when power is restored by changing over the device 24 so that the casing thereof is drawn upwards (Fig. 4, not shown) to a position where it can be reattracted by coil 29. In a modification (Fig. 7, not shown), the armature (125) and coil (129) are attached respectively to the moving contact (114) and operating shaft (114A) instead of between the casings 13, 24. The operating device may be a simple solenoid type.
Patent GB-802819-A (GB)
Title: Means for varying the speed of single phase electric induction motors
Inventor: WILKINS EDWARD WILLIAM
IPC: H02P1/42
Filed: 1955-09-06
Abstract: 802,819. Induction motors. GARRARD ENGINEERING & MANUFACTURING CO., Ltd. Sept. 6, 1956 [Sept. 6, 1955], No. 25551/55. Class 35. [Also in Group XXXVII] The supply leads 5, 6 of a single-phase motor, particularly for gramophones, are connected to intermediate points on the windings 1, 2 and there is a tapping 15 from the junction of the winding ends to a variable resistance 14 connected to the other ends of the windings via fixed resistances 12, 13.
Patent GB-259979-A (GB)
Title: Improvements in means for detecting an earth leakage in high tension cables
IPC: H01B7/32
Filed: 1926-10-14
Abstract: 259,979. Akt.-Ges. Brown, Boveri, et Cie. Oct. 14, 1925, [Convention date]. Detecting, indicating, and locating faults. - In order to detect selectively a faulty section of a high-tension conductor connecting a plurality of central stations, devices are provided for measuring the higher harmonic component of the earth leakage current and also devices by which the distribution of these higher harmonic currents over the various central stations can be varied for locating the fault. As shown, two stations A, B are connected by three-phase high-tension conductors R, S, T, in the first-named of which is a fault E to earth. The presence of the earth leakage is detected at station A by means of a telephone HA, which can be connected successively to the secondary windings of transformers in the lines R, S, T, thereby detecting in which line the fault occurs. At a point C between the stations A, B is a choking-coil D consisting preferably of transformers having normally short-circuited secondary windings. In order to determine on which side of the point C the fault lies, the short-circuit is temporarily opened, whereby the effective inductance is increased, particularly for higher harmonic currents, which therefore flow almost exclusively through the station A. The telephone HA therefore indicates, by increased sound, the presence of a fault between the points A, C. The opening and closing of the short-circuiting switch K may be controlled telephonically from the stations A, B. A periodic method of working may be arranged, for example the choking coil may be alternately closed for 20 seconds and opened for 5 seconds.
Patent GB-921111-A (GB)
Title: Improvements in asymmetric truck for over-running monorail car
IPC: B61B13/04
Filed: 1960-07-22
Abstract: 921,111. Monorail railways. S. H. BINGHAM. July 22, 1960, No. 25661/60. Class 104 (2). [Also in Groups XXXI and XXXII] A monorail system comprises the combination of a channel section rail 1, supported with its upper and lower flanges 1b 1a extending horizontally, and a truck frame 2 having two sets of stabilizing wheels 6, 7 in vertically spaced planes, so arranged that the wheels of the sets 6, 7 are in pairs and bear on opposite sides of the rail 1, and a pair of running wheels 5 which bear downwardly on a face of the flange 1a. The frame of the truck 2 comprises a thin walled tube 2a from which are upstanding a pair of frame members 2b which also extend across the top of the track 1. Forwardly and rearwardly extending members 2c extend from the members 2b, where it passes over the top of the rail 1, and are joined by cross-members 2g. The frame members 2c carry the upper stabilizing wheels 6. Members 2d extending downwardly from the tube 2a are joined by a cross-member 2k which supports one of the lower stabilizing wheels 7 and a frame member 2f, which extends beneath the track 1 and supports a further stabilizing wheel 7 on the other side of the track 1. The frame members 2b are connected by inclined frame members 2e which slidably support, by means of self-lubricating blocks 11, a bolster 10. The bolster 10 extends across the top of the track 1 and supports at each end leaf springs 13 which are connected at one end by a bracket 14a and at the other end by a pivoted link 14c to a frame 14 of a vehicle body c. Shock absorbers 17 are interposed between the frame 14 and the bolster 10. Levelling air suspension members 15 are interposed between the springs 13 and the vehicle frame 14. Rubber shock absorber elements 12 are interposed between the bolster 10 and a horizontal portion of the frame members 2b so as to permit rotational movement of the bolster 10 about a vertical axis. When the truck 2 traverses a bend in the track 1 the bolster 10 pivots relative to the truck frame 2 and, due to the fact that it is supported on the inclined frame members 2e, tilts the vehicle c. The running wheels 5 are supported on the tube 2a so as to run on the lower limb la of the track 1 and one or more of the wheels 5 are driven by an electric motor, diesel, gas or turbine engine 18, through a shaft 19. A disc or dynamic brake 20 is provided on the axles of the running wheels 5. Brackets 9 are provided on the frame member 2f and wheels 8 on the frame members 2c as a safety precaution in the event of deflation of any of the tyres of the stabilizing or running wheels 6, 7 or 5.
Patent GB-860108-A (GB)
Title: Improvements in and relating to invalid chairs
IPC: A47C1/024
Filed: 1958-08-11
Abstract: 860,108. Invalids' chairs. POWELL, A. E. Aug. 10, 1959 [Aug. 11, 1958], No. 25665/58. Class 52(2). In an invalid's chair, seat 14 may remain horizontal while the remainder of the chair, including back rest 20, arm rest 23 and foot plate 25 is tilted by the invalid about cross-bar 12 to assist him in reaching the seated position. The cross-bar is mounted between two triangular frames 10 and the chair is tilted by means of a nut running on a screw-threaded shaft having an operating handle located on an arm of the chair (Fig. 3, not shown). A separate adjustment may be provided for altering the angle of seat 14. Reference is made to the operation of the tilting means by an electric motor and, alternatively, to tilting the chair hydraulically.
Patent GB-222325-A (GB)
Title: Improvements in cases for cigarettes or the like
IPC: A24F15/14
Filed: 1923-10-16
Abstract: 222,325. Smith, Ltd., J., and Williams, R. J. Oct. 16,1923. Pouches.-A cigarette or like case comprises an inner member preferably of metal and an outer member 12 of leather having a flap 13 which may be strengthened by a metal wire or strip.
Patent GB-930603-A (GB)
Title: A gas burner
IPC: F23D14/04
Filed: 1959-07-28
Abstract: 930,603. Gas burners. A. E. BOULET. July 28, 1959, No. 25835/59. Class 75 (1). A gas burner providing infra-red heat comprises a mixing chamber 31, having an outlet covered by a wire gauze 30 and a cellular partition 34 in contact with the wire gauze. Notches 36 are formed in the lower edges of the partition to facilitate the propagation of the ignition flame. The wall surrounding the partition is thermally isolated. The mixture is supplied by a gas injector 33 and an adjustable air inlet 32. One of the elements of the partition may be made of silver.
Patent GB-391025-A (GB)
Title: Improvements relating to minimising or localising the effects of ignition, detonation or explosion of gases or vapours in pipe lines
IPC: A62C4/02
Filed: 1932-09-17
Abstract: 391,025. Minimizing fires and explosions in gas pipes. PANSTWOWA WYTWORNIA PROCHU, (formerly PANSTWOWA WYTWORNIA PROCHU I MATERJALOW KRUSZACYCH), Pionki- Zagozdzon, Poland. Sept. 17, 1932, No. 25920. Convention date, April 12. [Class 47 (ii).] A device for preventing the propagation of flame or explosion in pipe lines conveying explosive gases comprises a frame a in which grids b are clamped by bolts c, layers of balls E or gauze being packed between the grids. The frame is fixed in a chamber A connected in the pipe line C, D, the frame being parallel to the axes of the pipes, so that the gases turn through an angle in passing through the grids. The chamber A is provided with openings closed by light diaphragms d-d<2>, which rupture and relieve the pressure if an explosive wave enters the chamber. In a modification, Fig. 4, for pipe lines of large capacity, two frames a are arranged at an angle to each other within the chamber A. The gases enter the chamber, outside the frames, by a bifurcated pipe g, and pass out by a pipe connected to the space between the frames. Preferablv, the frames are connected to the walls of the chamber by sheet metal which will rupture readily. Preferably, also, angular bends are provided in the pipe line at intervals, and at each bend a diaphragm adapted to rupture under excessive pressure is provided.
Patent GB-616149-A (GB)
Title: Improvements relating to punnets and to the manufacture thereof
IPC: B27L5/06
Filed: 1946-08-29
Abstract: 616,149. Baskets. FINK, L. Aug. 29, 1946, No. 25955. Drawings to Specification. [Class 133] A punnet consists of a one-piece side wall formed by bending a rectangular blank on itself and securing the overlapping ends together and a base secured to the bottom edge of the side wall. The side wall is formed from a strip or strips shaved from a rectangular block and bent into cylindrical or polygonal form, the overlapping ends being secured by a staple. A base member, shaved from a square or similar shaped block which may have had its corners removed is pressed against the end of the wall and is secured in place by staples at the four corners, one leg of each staple passing through the side wall and the other leg through the base. The former on which the side wall is shaped and the plunger by which the base is held in place are recessed to facilitate insertion and clinching of the staples.