baber/WOPTO huggingface dataset:
Patent GB-1480094-A (GB)
Title: Alkyl substituted cyclopenta benzopyrans
IPC: C07D311/94
Filed: 1974-08-27
Abstract: 1480094 Alkyl - substituted cyclopentabenzopyrans L S HARRIS H G PARS J C SHEEHAN and R K RAZDAN [trading as SHARPS ASSOCIATES] 27 Aug 1974 [29 Aug 1973] 37498/74 Heading C2C The invention comprises compounds having the general formulae wherein R is C 1  to C 6  alkyl, R 1  is hydrogen, or C 1  to C 6  alkyl, R 2  is C 1  to C 6  alkyl, and R 3  is C 1  to C 20  alkyl, phenyl-C 1  to C 6  alkyl or cycloalkyl-C 1  to C 6  alkyl. They may be prepared by reacting a compound of formula with a compound of formula to produce a compound of Formula (IV) which may be reacted with a C 1  to C 6  alkyl magnesium halide to produce a compound of formula which is then reacted with acid to produce a compound of Formula (I). The compounds of the invention exhibit antihypertensive, antidepressant, analgesic, anticonvulsant, tranquillizing and/or antianxiety activity and may be administered alone or in admixture with conventional carriers. British patent Specifications 1,438,833 and 1,459,564 are referred to.
Patent GB-323109-A (GB)
Title: Improved means for retarding the action of electrical apparatus
IPC: H01H7/03
Filed: 1928-12-19
Abstract: 323,109. Record, J. W., and Record Electrical Co., Ltd. Dec. 19, 1928. Dashpots (serving as retarding devices for electric current. breakers or relays) of the type in which a piston moves slowly in a cylinder until it reaches an enlarged portion thereof, have the piston in the form of a sphere, with an internal valve, whereby a very close fit (without danger of jamming when entering the restricted portion) is obtained. The working sides only of the piston may have the spherical formation, the remainder being cut away. In the construction shown, the lower part of the piston is of spherical shape and has a non-return ball valve d located within it. The piston is connected to the piston rod by a pin i passing loosely through both, so that the piston is capable of slight universal movement. The period of retardation may be adjusted by rotating the screwed cover b whereby the initial position of the piston is adjusted with relation to the restricted portion of the cylinder. The degree of retardation is indicated by a pointer k on the cylinder. A baffle j, held in place by the cap or formed as an integral inturned portion of the cylinder mouth, prevents loss of oil if the dashpot is tilted or reversed.
Patent GB-1351489-A (GB)
Title: Optical brighteners of the bisstyrylbenzene series
IPC: C07D295/192
Filed: 1971-08-11
Abstract: 1351489 Bisstyrylbenzene derivatives BADISCHE ANILIN- & SODA-FABRIK AG 11 Aug 1971 [12 Aug 1970] 37678/71 Heading C2C [Also in Division D1] The invention comprises optical brighteners of the formula where X is H, Cl, CH 3 ; OCH 3  or OC 2 H 5 , Y is H, Cl, OH 3 , OCH 3  or OC 2 H 5 , X and Y not being both H at the same time, Z is H, Cl, CH 3  or OCH 3 , R and R<SP>1</SP> are carbalkoxy, carbamoyl, substituted carbamoyl, CONHNH 2  or CONHN(CH 3 ) 2  or in the free acid form of the optical brightener are COOH or CONHNH(CH 2 ) n SO 3 H where n is 0-4. The compounds areprepared by reacting a compound of the formula with either (a) a compound of the formula or a mixture thereof or (b) a compound of the formula followed in case (b) by the introduction of a different radical R or R<SP>1</SP> in place of the COOCH 3  or COOO 2 H 5  radical.
Patent GB-622963-A (GB)
Title: Improvements in jet propelled boats
IPC: A63H23/06
Filed: 1946-12-31
Abstract: 622,963. Propelling ships. FREEMAN, C. T., and ASTRA-PHAROS. Ltd. Dec. 31, 1946, No. 38173. [Class 114] Water-borne craft or boats are propelled by a unit having a heated closed pressure chamber communicating with one or more outlet tubes each directly connected, without the interposition of a mixing chamber, to rearwardlydirected jet ducting of larger internal crosssection than the outlet tube or tubes. The pressure chamber is a helical coil of tubing 1, the upper end 2 being closed and the lower end formed as an outlet tube and bent downwardly at 3 to enter the upwardly directed end 4 of a jet pipe of larger diameter. The connection between the two pipes is closed. The jet pipe passes through the hull, projects rearwardly, and has its end 7 inclined upwardly, but remains below the water-line 10. If desired, the mouth 8 may be flattened to fish-tail form. The coil is heated by a lamp or burner 9. The slot orifice may be vertically disposed instead of horizontally. The unit may be employed as an outboard motor and may be pivotally mounted for steering.
Patent GB-866224-A (GB)
Title: Improvements relating to belt drives for generators on railway vehicles
Inventor: DEADMAN VERNON ERIC
IPC: F16H57/031
Filed: 1958-11-26
Abstract: 866,224. Machinery guards. STONE & CO. (DEPTFORD) Ltd., J. Nov. 13, 1959 [Nov. 26, 1958], No. 38185/58. Class 80 (4). [Also in Group XXXII] A guard for the belt drive of a generator 1 suspended under a railway vehicle 2 and driven from an axle 3 thereof is mounted upon the axle box 5 and the generator 1 by means of flexible rubber bushes 20 and 23. The belt guard comprises a back-plate 15 and a cover portion 16 which is removably attached to the back-plate by the engagement of a flange 17 on the cover 16 with a longitudinal groove 18 formed in the lower edge of the backplate and by means of a clamping strip 19. The bush 20 is mounted in an annular assembly 22 secured to the back-plate 15 and the bush 23 is mounted in a plate 25 which is slidably guided between upper and lower rails 27 and a spring-pressed retaining plate 28 mounted on the back-plate 15. The belt drive comprises a pulley 7 secured to the end of the axle 3, a pulley 9 fixed to the end 10 of the generator shaft,. and four V-belts 6.
Patent GB-1514740-A (GB)
Title: Methods of and apparatus for introducing grout into incompressible ground structures
IPC: E21D1/10
Filed: 1976-12-10
Abstract: 1514740 Stabilizing earth SOIL MECHANICS Ltd 10 Dec 1976 [17 Sept 1975] 38261/75 Heading E1F In a method of introducing a grout into a substantially incompressible ground structure, a compressible structure, e.g. a sectional polythene tube 20, is positioned adjacent a sleeved grout tube 10 in a drilled hole and is deformed under the pressure of grout forced into the sleeved grout tube 10 to enable sleeve grout surrounding the sleeved grout tube 10 to crack and allow grout to be insinuated into the surrounding ground structure.
Patent GB-805278-A (GB)
Title: Improvements in or relating to electric oil circuit breakers
IPC: H01H33/92
Filed: 1956-12-14
Abstract: 805,278. Liquid - blast circuit breakers. MASCHINENFABRIK OERLIKON. Dec. 14, 1956 [Jan. 30, 1956], No. 38279/56. Class 38 (5). A small oil-volume circuit-breaker has an oil pump 30 controlled by the breaker actuating mechanism and mounted on the breaker pedestal 29 and an arc control chamber 1 with an non-return valve 14 which permits oil to enter the chamber only at a chamber pressure corresponding with a predetermined comparatively low value of ruptured current. The chamber 1 comprises two tubular members 6, 7 of synthetic resin bonded glass fibre fabric, mounted between two metal plates 9, 12 which may have a resistance 22 connected between them. The space 5 between the members 6, 7 forms a venting passage with a hole 11 in the plate 9 to the separator tank 4. The moving contact 16 is operated from a shaft 35 and biased open by a spring 39 acting on a lever 40 also fixed to the shaft 35 and which operates the pump piston-rod 42. The piston 44 can slide on the rod 42 but is urged against its enlarged head by a spring 45. An oil accumulator 55 recharges the pump through its non- return valves 49 so that the breaker may be opened several times in succession. When the breaker is closed the piston 44 is moved to the dotted position with the displaced oil passing through passages 54, 53 and non-return valves 48 to the top of the piston. The sealing of passage 54 by the side of the piston 44 of the end of its stroke has a damping effect on the contact movement. On opening, the spring 45 drives the piston 44 upward to force oil through the non-return valves 47 and towards the chamber 1 as shown by the arrows. At low values of fault current the valve 14 opens and oil is driven through the arc to vents 21. If the breaker remains inoperative after opening the oil which has been pumped returns through openings 17, 50, 51 and 52 to the accumulator 55. At high values of fault current the pressure in the chamber 1 keeps the valve 14 closed so that the piston 44 does not move with the rod 42.
Patent GB-852285-A (GB)
Title: Improvements in or relating to binaural or stereophonic sound transmission systems
IPC: H04R5/04
Filed: 1956-12-17
Abstract: 852,285. Binaural systems. TELEFUNKEN G.m.b.H. Dec. 17, 1956 [Dec. 16, 1955], No. 38392/56. Class 40 (4). The outputs of two spaced microphones are added and differenced, the resulting signals being fed over separate transmission channels to a circuit where the original signals are reproduced. A non-directional microphone may feed one of the channels in an additive sense. The outputs of microphones M and M 1- M4, Fig. 1, are added and applied to transmission channel I. The outputs of M2 and M4 are phase reversed at U2 and U4 before combination with the outputs of M1 and M3 in a second transmission channel II. Channels I and II are combined to feed loudspeaker I. Channel II includes a further phase-reverser UE before combination with channel I to feed loud-speaker L2. M3 and M4 have their outputs attenuated at D3 and D4 to a varying extent so that the effective position of the sound source can be varied. In Fig. 3 all the microphone circuits in channel II have variable attenuators, the potentiometer being varied according to whether the effective source of the sound is to be to the right or left of the centre line. Two microphones placed close together having a spherical and a polar response, respectively, may also be included in the system.
Patent GB-1095778-A (GB)
Title: Improvements in or relating to methods and apparatus for applying powdered materialto articles
Inventor: WALLIS NEIL RUDOLPH
IPC: B05B5/03
Filed: 1964-09-22
Abstract: 1,095,778. Spray-producers. AEROCOAT S.A. Sept. 15, 1965 [Sept. 22, 1964], No. 38520/ 64. Heading B2F. [Also in Division B8] An apparatus for applying powdered coating material to an article comprises a ring of jets 13 supplied with compressed air and adapted to fluidize powder within a container 2, 3, an outlet conduit 8 for the powder in suspension, a distributor head, not shown, connected to the conduit and provided with a rotating distributor disc, and means for maintaining an electrostatic field between at least part of the head and the article to be coated. In operation the container, which is mounted on tapered bearing surfaces 6, 7, is arranged with the jets 13 lowermost so that the air passes through a large proportion of the powder in the container. An extension 9 of the conduit 8 within the container is provided with slots 10 and contains a ball valve. Each jet 13, Figs. 3 and 4 (not shown) is provided with a powder trap. These jets may be replaced by at least one entraining device, Fig. 5 (not shown) including a central air jet (57), a ring of converging air jets (58) and a powder intake opening (59). The entrained powder is fed by at least one conduit (55) to a rotating disc surrounded by a shroud providing a plurality of air jets, at least some or which are convergent. Three conduits may supply a single disc and a plurality of entraining devices may supply a plurality of discs. The container may include a ball-valve device to allow air to enter as the powder leaves.
Patent GB-815459-A (GB)
Title: Travelling-wave tubes
IPC: H01J23/00
Filed: 1957-12-13
Abstract: 815,459. Travelling-wave tubes. SPERRY RAND CORPORATION. Dec. 13, 1957 [Jan. 18, 1957], No. 38770/57. Class 39(1). A travelling-wave tube is provided with means for producing an axial magnetic focussing field which include two magnetic pole pieces, each having an axial aperture surrounding an end of a slow-wave structure, provided in the tube, and a radial aperture through which connection is made to the end of the slow-wave structure. As shown, magnetic pole pieces 21, 28 surround the ends of helix 12 which is supported therein by means of three dielectric rods 31. The inner conductors of coaxial lines 16, 17 are connected to the ends of the helix and the outer conductors are connected to metal cylinder 35 by means of metal transition sections 33, 34. Electromagnetic focussing coils 47-49 are wound on a non- ferromagnetic former 46 and separated only by thin non-ferromagnetic spacers 51-54 abut against annular ferromagnetic plates 36, 41 connected to pole pieces 21, 28 so that there is no substantial gap which might cause an interruption in the uniformity of the axial magnetic field. At the output end of the tube pole piece 28 is formed with a radial flange 39 which is held against plate 41 by three L-shaped brackets 42 clamped to the plate 41 by screws 44 to enable plate 41 and solenoid to be adjusted axially.
Patent GB-1472626-A (GB)
Title: Algae cultures for extracting uranium from sea-water
IPC: C22B60/02
Filed: 1974-09-06
Abstract: 1472626 Algal mutants; extracting uranium from sea-water KERNFORSCHUNGSANLAGE JULICH GmbH 6 Sept 1974 [8 Sept 1973 30 Aug 1974] 39055/74 Headings C6F and C7D Algae are used to extract uranium from seawater by absorption and the absorbed uranium is recovered from the algal cells by conventional procedures e.g. by extraction by means of tributyl phospate. The algal cells of size 50-100Á may be held in a filter cage of 100m<SP>2</SP> cross-section exposed to a tidal flow of sea-water amounting to 10<SP>6</SP> tons per day. A preferred procedure involves the use of mutants of naturally occurring unicellular green algae obtained in a conventional fashion with x-ray irradiation. The selected mutants are capable of absorbing uranium from sea-water to a greater extent than the naturally occurring cells from which they derive and are compatible with relatively high concentrations of uranium of at least 2 ppm, even up to 500 ppm.
Patent GB-1150068-A (GB)
Title: Belt Drive Apparatus
IPC: F16H7/02
Filed: 1966-09-01
Abstract: 1,150,068. Belt gearing; bearings. HEALD MACHINE CO. 1 Sept., 1966 [7 Sept., 1965], No. 39122/66. Headings F2A and F2Q. To tension an endless belt 18 drivingly connecting pulleys 16, 17-e.g. of an electric motor 11 and the spindle 13 of a grinding-wheel 14, respectively-a member 19 on one end of a lever 26 pivoted at 29 to a fixed frame is biased against the belt, and an air bearing is provided between the belt and a curved surface 21 of the member 19. Compressed air supplied at 25 to the hollow interior of the member 19 emerges through holes 22 having shallow counterbores 23 in the surface 21 to form the air bearing. Compressed air is also supplied at 37 to the top of a reservoir 35 partially filled with oil so that oil is forced through passages 41, 39, 42, 43 to act on a piston 33 in a cylinder 34, the piston being connected to the other end of the lever 26, so that the member 19 is urged against the belt. A restrictor 44 having an inclined end face to control the oil flow between the passages 41 and 39 is adjustable by rotation, the restriction of flow causing a delay in the supply of oil to the cylinder 34 when the drive is started so that the motor 12 may be run up to speed before the member 19 is biased to tension the belt.
Patent GB-935708-A (GB)
Title: Apparatus for the selective transfer of high frequency energy
IPC: H01P1/12
Filed: 1960-11-17
Abstract: 935,708. Amplitude modulation systems; interrupting carrier frequencies. A. ALFORD. Nov. 17, 1960 [Dec. 18, 1959], No. 39543/60. Class 40 (5). R.F. energy is fed to a coaxial line whose outer member 23 is longitudinally slotted to form diametrically opposite apertures 31, 32 extending nearly the whole length #/2 of an outer coaxial metal casing 16 closed by end walls 17, 18, in which the coaxial line is rotatably supported on bearings. As shown, the coaxial inner conductor 27 extends half way along the outer conductor 23 and is only there conductively connected to it by a metal block 28. The outer casing has four or more equally spaced coaxial line connections 12, 13 with the inner conductors connected to curved plates 41, 42 insulatedly supported within the casing 16. As member 23 revolves sinusoidal voltages are developed on the plates 41, 42 and at the coaxial outputs in phase quadrature (if four outputs), and with a maximum on any plate when the slots are directed away from it at 90 degrees. The casing 16 may be a halfwavelength long, and the plates 41, 42 half the length of the slots. Opposite pairs of coaxial outputs 12, 13 may be connected to baluns, each feeding unbalanced lines connected to azimuth and elevation antennas. Rotation of the tube member 23 through 90 degrees may therefore wholly switch the R.F. power from one antenna to the other. In a modification, the pair of baluns is connected, one through a #/4 length line, to side arms of a hybrid T- junction, the series and parallel feed arms of which therefore produce constant equal amplitude vector outputs but with relative phases rotating in opposite directions. If these feed spaced antennas the beam of the array may be rotated 360 degrees by rotating the coaxial member 23.
Patent GB-1235890-A (GB)
Title: Meta-anilide urea compositions and their utility as herbicides
IPC: A01N47/30
Filed: 1968-08-19
Abstract: 1,235,890. m-Anilide ureas and thioureas. STAUFFER CHEMICAL CO. 19 Aug., 1968 [23 Aug., 1967; 19 July, 1968], No. 39583/68. Heading C2C. [Also in Division A5] The invention comprises compounds of the Formula I in which X and Y represent an oxygen or sulphur atom, R 1  and R 4  represent a hydrogen atom or a lower alkyl C 1-6  radical, R 2  and R 3  represent a hydrogen atom or an alkyl, haloalkyl, lower alkenyl C 2-4 , cycloalkyl C 3-6 , 2,4- dichlorophenoxy-methyl carbalkoxyalkyl, naphthyl, phenyl radical or a phenyl radical substituted by a halogen atom or a nitro or lower alkoxy C 1-6  group, R 5  represents a hydrogen atom or an alkyl, lower alkenyl C 2-4 , haloalkyl C 1-6 , cycloalkyl C 3-6 , benzyl or phenyl radical or a phenyl radical substituted by a halogen atom or a nitro, lower alkoxy C 1-6 , or trihalomethyl group, Z represents a halogen atom or a lower alkyl C 1-6 , nitro, amino or trifluoromethyl radical and m is an integer from 0 to 4 with the proviso that when R 1 -R 4  represent hydrogen atoms, X and Y both represent oxygen atoms and m is 0 then R 5  is other than a methyl or ethyl radical. They are prepared by reacting the appropriately substituted mamino substituted anilide with an isocyanate, isothiocyanate or carbamoyl chloride or by reacting an appropriately substituted m-amino substituted urea or thiourea with an acyl halide or acid anhydride. A large number of examples is given. The compounds of Formula I have herbicidal activity.
Patent GB-335478-A (GB)
Title: Pipe coupling
IPC: F16L19/02
Filed: 1929-12-28
Abstract: 335,478. Jennings, L. B., (Assignee of Sawyer, D. B.). Aug. 13, 1929, [Convention date]. Butt joints. - In a coupling for pipes comprising abutting members 1, 2 held together by a nut 4 as shown, fluidtightness is secured by a lead &c. packing ring 8 which is located at the bottom of an annular channel 7 in the outer face of the member 2 and is compressed by an annular rib 9 on the member 1. The rib 9 is of substantially the same width as the channels 7, and the face thereof is provided with a plurality of shallow concentric grooves 10 into which the packing news when the parts are drawn together.
Patent GB-965663-A (GB)
Title: An improved process for measuring potassium ion activity
IPC: G01N27/36
Filed: 1960-11-18
Abstract: A glass electrode (see Division G1) is composed of a network forming oxide (silica or germanium dioxide), aluminium oxide, and an oxide of potassium, rubidium, or caesium, in which the ratio of mole per cent of alkali oxide to that of aluminium oxide is at least 1.5 : 1. A ratio of 2, and compositions K2O : Al2O3 of 22.7 : 8.4 and 38.4 : 4.7 (remainder silica) are referred to.  Oxides of magnesium, calcium, barium, strontium, copper, iron, and boron may also be present.
Patent GB-1146872-A (GB)
Title: Improvements in hose pipes
Inventor: JACKSON ALBERT EDMUND
IPC: F16L11/08
Filed: 1965-09-17
Abstract: 1,146,872. Hoses. GEORGE ANGUS & CO. Ltd. 18 Nov., 1966 [17 Sept., 1965], No. 39800/65. Heading F2P. A hose comprises a tubular reinforcing layer made by knitting, braiding or lapping spun continuous filaments or single or multiple monofilaments 19 of nylon, rayon, polyethylene terephthalate or polypropylene which have been individually sheathed 20 by extrusion with natural or nitrile rubber, polyvinyl chloride, a blend of polyvinyl chloride and nitrile rubber, or polyurethane, a tubular layer of elastomeric material 21 bonded to the interior of the reinforcing layer or formed by flow of sheaths as a result of heat and pressure, and an outer cover 22 of elastomeric material bonded to the exterior of the reinforcing layer or formed by flow of the sheaths as a result of heat and pressure. As shown, two opposite layers of nylon filaments of denier 630 having an extruded coating of plasticized polyvinyl chloride are applied to a mandrel 18 at a helix angle of between 51 and 54 degrees. The windings are subject to heat and pressure whereby the sheaths flow to form inner and outer layers 21, 22. In a similar embodiment, Figs. 5 and 6 (not shown), the reinforcement layers are braided and the flow of the sheaths bonds the layers to an additional inner lining 23 formed by a wound nitrile rubber strip. In the embodiment of Fig. 2 (not shown), the hose comprises an extruded lining tube 15 of natural rubber 15, a braided layer 16 formed of a nylon filament of 840 denier extrusion-coated with natural rubber and having a braid angle of 55 degrees, and an extruded rubber cover. In a similar embodiment to Fig. 2, Figs. 7 and 8 (not shown), two braided layers are provided. In a final embodiment, Fig. 1 (not shown), the hose consists of a nitrile rubber lining 10, a textile braid of cotton, a high tensile steel wire braid having a braid angle of 53 degrees, an insulating sheet nitrile rubber layer 13, and an external braid 14 of nylon filaments 840 denier extrusion-coated with polyvinyl chloride, the sheaths of the latter flowing under pressure and heat to bond the braid layer to the rubber layer 13 and to form an outer cover. A rigid helix may be incorporated in a hose construction.
Patent GB-843675-A (GB)
Title: Improvements in or relating to rotary compressors
Inventor: BREELLE YVES
IPC: F04C18/20
Filed: 1957-12-30
Abstract: 843,675. Rotary compressors. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. Dec. 30, 1957 [Dec. 28, 1956], No. 40339/57. Class 110 (2). A water-cooled rotary compressor of the rotary abutment type, Fig. 1, has its inlet conduit A permanently open to the annular working space Q and a rotary abutment r which also serves as a closure valve for the outlet passage S. The rotor R may co-operate with a second abutment and the stator be provided with two inlet ports and two outlet ports to constitute a multi-stage compressor having its equal or different output stages arranged in parallel (see Figs. 3 and 4 respectively (not shown)). In another modification, Fig. 5, the rotor R co-operates with two asymmetrically arranged rotary abutments r1 r2 to define a multi-stage compressor, the different stages being of different capacities to one another and interconnected by a transfer passage K. In a final modification, Fig. 2 (not shown), two devices as described in Fig. 1 are mounted on common shafting to form a compound unit. Specifications 795,898, 838,166, 840,756 and 843,282 are referred to.