baber/WOPTO huggingface dataset:
Patent GB-1187572-A (GB)
Title: Tunable Microwave Cavities
Inventor: KLOTZ ROBERT ERNEST
IPC: H01P7/06
Filed: 1968-05-03
Abstract: 1,187,572. Cavity resonators; transit-time tubes. LITTON INDUSTRIES Inc. 3 May, 1968 [5 May, 1967], No. 21193/68. Headings H1D and H1W. A tunable cavity resonator-incorporated in a klystron or magnetron for example-includes a piezo-electric device of which the piezo-electric material and the electrodes are accommodated internally, and are completely surrounded by the walls, of a housing, the cavity being defined by conductive internal surfaces of walls of the housing together with a movable wall portion coupled to the piezo-electric material. As shown, one wall of a rectangular or cylindrical cavity 1 is constituted by a conductive layer 12 forming an electrode coating a plate 8 of barium titanate coated on its opposite face with electrode 10 and supported on an insulating layer 9. Steady or alternating voltages are applied across leads 13 and 15 to vary the volume of the cavity. The insulating layer 9 may be dispensed with.
Patent GB-381533-A (GB)
Title: Improvements in devices for the simultaneous reaping and thrashing of cereals
IPC: A01D41/00
Filed: 1932-07-27
Abstract: 381,533. Harvesting and thrashing grain. DEUTSCHE-INDUSTRIE-WERKE AKT.-GES., 4, Freiheit, Spandau, Berlin. July 27, 1932, No. 21204. Convention date, Sept. 2, 1931. Addition to 380,706. [Classes 6 (iii) and 58.] To couple together the reaping device 2 and the thrashing machine 1 referred to in the parent Specification, the latter machine carries a frame 6 extending longitudinally beyond the wheels 3, 4 of the thrashing machine and the reaper respectively. The frame 6 carries curved upright end members 7, 7<1> formed with slots 8, 8<1>, to take a long bolt 10 that also passes through apertures in horizontal connecting arms 9, 9<1>, projecting from the reaper. The curvature of the members 7, 7<1> has the axis of the supporting wheels of the thrashing machine and the reaper as centre. The one machine may be adjusted relatively to the other about the axis of the bolt 10 to suit the slope of the ground. The cutting device of the reaper may be raised by rocking the reaper about the axis of its wheels through a link connection 17 to a hand-lever 14 on the thrashing machine working over a quadrant 15.
Patent GB-278490-A (GB)
Title: Improvements in or relating to linings for mine and quarry shafts, tunnels and the like made of bricks, moulded plates or the like
IPC: E21D11/05
Filed: 1926-08-30
Abstract: 278,490. Schõfer, H. Aug. 30, 1926. Addition to 244,510, and 262,189, [Class 85, Mining &c.]. Blocks for lining shafts and tunnels. -The blocks have radial reinforcement f to resist shearing stresses. and are holed to receive metal bonding bars z<1>.
Patent GB-213361-A (GB)
Abstract: 213,361. Ure, G. A. Jan. 17, 1923. Grates.-In connection with rocking fire-bars for kitchen ranges and the like, dumping is provided for but is positively prevented during the shaking operation. As shown, the bars A, A<1> are connected together at the rear of the fire-box by gearing A<3>, A<4>, and are each formed with two series of upwardly projecting fingers B, the fingers on one bar being staggered relatively to those on an adjacent bar. The bar A projects through the front of the fire-box and is positively operated by a handle, the arc of oscillation being limited to that required for clearing the grate by a stop B' on one side and on the other by the engagement of a pivoted hooked member B<3> with a projection B<2> on the bar A. In order to dump the grate the parts B<2>, B<3> are disengaged and the bars rotated through a right-angle, as shown in Fig. 4.
Patent GB-201586-A (GB)
Title: Improvements in or relating to winding, forming and like operations in making coils for dynamo-electric machinery
IPC: H02K15/04
Filed: 1922-05-11
Abstract: 201,586. Gill, B. May 11, 1922. Coils, machines and apparatus for making.- Relates to improvements in a device for winding and forming coils for dynamo-electric machines and transformers which comprises a group of guides about which the coil is wound as a loop, the guides being mounted so that they can be moved to bend the loop into the required shape for application to the rotor or stator of the machine. The end guides 15, Fig. 3, are adjustably mounted on a bar 11 and the side guides 19 are supported on plates 22, the bar 11 and plates 22 being carried by a platform 3 which can be rotated horizontally. The height of the bar 11 may be adjusted by screws 74. The two members 19 constituting each side guide can be adjusted relatively to each other in a longitudinal direction on the plate 22, Fig. 4. The plates 22 are inclined towards each other, and the members 19 are formed with a right-angle bend in which the coil is wound. The members 19 are so arranged that the mutual inclination of the sides of the coil corresponds to the inclination of the rotor or stator slots in which the coil will be placed. The end guides 15 comprise a pin 15 and horizontal plates 17, 18 between which the coil is wound. The coil may be made up of a number of wires fed simultaneously to the winding device. Each of the wires is drawn first through a separate tensioning device and then between two rollers one of which is formed with grooves so that the wires are evenly spaced. When the coil is wound, it is clamped in each side guide-member 19 by a block 84, Fig. 5, and plate 86, the latter passing through an opening in the block 84. The coil is then spread out by raising one plate 22 and lowering the other in a vertical direction. This is accomplished by means of the posts 27 on which the plates are mounted, the posts 27 being formed with screwthreads engaging with nuts which can be rotated by a gear-wheel 36. The driving-mechanism 29, 32 is disengaged from the platform 3 by operating the clutch 39 so that it rotates the gearwheel 36 independently of the platform 3. The ends of the coil may be curved so as to conform to the peripheral curvature of the end of the armature core.
Patent GB-717421-A (GB)
Title: Improvements in or relating to flexible couplings dampers and like devices
IPC: F16D3/68
Filed: 1951-09-12
Abstract: 717,421. Flexible couplings. CROSET, L.P. Sept. 12, 1952 [Sept. 12, 1951]. No. 21461/51. Class 80 (2) [Also in Group XXXII] A flexible coupling or mounting between flanges 10, 11 comprises initially-compressed wedge-shaped rubber blocks 24 extending outwardly from a rubber ring 23 and interposed between blades 17, 18 extending alternately from the flanges 10, 11 or as shown, from the flange 11 and from a ring 36 detachably secured to the flange 10 by bolts 37, the blocks having limited freedom to expand axially under load to fill the cells formed by the flanges, the blades and an enclosing drum 25, and the initial compression being such that when those blocks which are further compressed under load fill their cells the idle blocks are still under compression. Each block is in contact with the drum over at least 90 per cent. of its. outer surface, and the blades have clearance from the drum not exceeding fifty thousandths of an inch. The ring 23 has a recess 28 at the inner end of each blade. The drum 25 is secured on one of the flanges or, as shown, on the ring 36. Specification 641,425 is referred to.
Patent GB-1135540-A (GB)
Title: Temperature responsive record material
IPC: B41M5/333
Filed: 1967-05-09
Abstract: 1,135,540. Printing processes. NATIONAL CASH REGISTER CO. 9 May, 1967 [1 June, 1966], No. 21482/67. Heading B6C. [Also in Division G2] A printing process comprises placing a paper support with the image printed on one side and a heat-sensitive layer on the other side (see Division G2) in contact with a plain receptor sheet and heating so that a coloured image is produced on the receptor sheet. This is repeated until the heat-sensitive coating is exhausted. Alternatively, the image may be printed on the heat-sensitive coating and a mirror image is produced on the receptor sheet.
Patent GB-586238-A (GB)
Title: Improvements in gas turbine power plants
IPC: F02B71/06
Filed: 1944-11-02
Abstract: 586,238. Gas turbine plant. AKTIEBOLAGET GOTAVERKEN. Nov. 2, 1944, No. 21490. Convention date, Nov. 22, 1943. [Class 110 (iii)] [Also in Group XXVII] A gas turbine, supplied with working fluid by two or more gas producing engines through entirely separate admission members, has the first stage constructed as an impulse stage in which the pressure drop in the guide vanes is substantial critical when the gas producing engines are running at full load. In the arrangement shown, Figs. 1 and 2, the inlet chamber 6 of the ahead gas turbine is divided into sectors 8, 9, 10 and 11 each of which is supplied by a separate admission member 12, 13, 14 and 15 respectively, having a valve 18 for controlling the ahead turbine 3, 4 and a valve 19 for controlling the reverse turbine 5. The valves 18, 19 are operated by rotation of the shaft 20 through cams 21 and 22 and levers 23, 24. To prevent operation of the valves 18, 19 when the corresponding gas producing engine is not delivering at a sufficient pressure or is out of action, the levers 23, 24 which are pivoted on the valve stems are connected at the end remote from the cams 21, 22 with a piston 26 in a cylinder 27 connected to a source of controlling fluid, which has a pressure in fixed relation to that of the working fluid, through a pipe 28. When the pressure of the controlling fluid, which may be scavenging air, is too low the operation of the cams 21, 22 causes the levers 23, 24 to pivot about the valve stems and depress the pistons 26 in the cylinders 27. If the pressure of the controlling fluid is sufficient, the pistons 26 are forced to the top of the cylinders 27 and operation of the cams causes the levers 23, 24 to pivot about the piston rods 25 and open the respective valves 18, 19. The cams 21, 22 are arranged on the shaft 20 in such a manner that rotation of the shaft in one direction opens the valves 18 and in the other direction the valves 19. The turbine wheels 3 and 5 are designed as impulse wheels, in which the temperature drop in the guide vanes 33, 34 is critical or almost critical so that the flow of gas from one gas producing engine will not noticeably influence the flow of gas from another engine. The inlet chambers 7 of the reverse turbine may also be divided into sectors.
Patent GB-910146-A (GB)
Title: Alkyl-substituted-2,2-alkylenebisbenzimidazoles
IPC: C07D235/20
Filed: 1961-06-14
Abstract: The invention comprises alkyl substituted-2,21-alkylene-bis-benzimidazoles of the formula: <FORM:0910146/IV (b)/1> and their pharmacologically acceptable acid addition salts, wherein R is a hydrogen atom or a lower alkyl group and R1 and R2 are lower alkyl groups ("lower" indicating 1-6 carbon atoms in the group) and the preparation thereof by reacting a dialkyl-substituted-1,2-phenylenediamine of the formula <FORM:0910146/IV (b)/2> with a compound R.CH(CONH2)2, R.CH(COOR3)2 or R.CH(C(:NH)OR4)2.2HCl in which R3 and R4 are alkyl groups, in the presence of an inert organic solvent, if desired converting the resulting base into an acid addition salt.  When using as a reactant the malonic acid derivatives R.CH(CONH2)2 or R.CH(COOR3)2 the invention may include the additional step of removing from the reaction product the by-product <FORM:0910146/IV (b)/3> by treating the product with an aqueous mineral acid, clarifying the acid solution and liberating the bis-benzimidazole therefrom by the addition of a base.  Malonimino diethyl ether dihydrochloride was prepared from malononitrile, ethanol and hydrogen chloride. Pharmaceutical compositions useful as diuretics or sedatives comprise the compounds of the invention together with an inert diluent or carrier and may be formulated as tablets, powder packs, capsules, solutions or suspensions for oral or parenteral administration. U.S.A.  Specificatio 2,697,712 is referred to.
Patent GB-215444-A (GB)
Abstract: 215,444. Wilkinson, B. I. Feb. 9, 1923. Two-stroke-cycle engines; driving-gear. - The engine is double-acting, combus tion spaces being provided respectively above the piston 1 and between this piston and a piston 6 in side the trunk of the pistor 1. Admission and exhaust ports 7, 8 common to both combustion spaces are pro vided. These ports are un. covered simultaneously by the piston 1 on the downstroke and by ports 9, 10 ir the trunk 2 on the upstroke. Baffles 4, 5 on the piston faces deflect the in. coming charge. The piston 1 is connected by parallel connecting-rods 14 on a gudgeon 13 to two crank, 12. The gudgeon 13 passes through a slot 16 in a rod 11 connecting the piston 6 with a crank 17 of small throw situated opposite to and between the cranks 12.
Patent GB-1340124-A (GB)
Title: Reduction of fluid flow friction loss in transmission of  hydrocarbon liquids imploying polysiloxane additives
IPC: C10L1/28
Filed: 1971-04-19
Abstract: 1340124 Hydrocarbon compositions GENERAL ELECTRIC CO 19 April 1971 [13 Feb 1970] 21643/71 Headings C5E and C5G [Also in Division F2] Fluid flow friction loss (viscous drag) on the transmission of hydrocarbon liquids is reduced by mixing with the liquid up to 200 pp.m of a catalyst free polysiloxane of mol. wt. at least 700,000. Specified hydrocarbons are crude oil, gasoline, kerosene, fuel oil, jet fuel, liquified petroleum gas, pentane, cyclohexane, isooctane and toluene. The siloxane may be metered into the hydrocarbon conduit in the form of a concentrate (up to 25%) in a hydrocarbon solvent. Many polysiloxanes are exemplified, polydimethylsiloxane being preferred.
Patent GB-185932-A (GB)
Title: Improvements in or relating to pneumatic tyres for vehicles and the like
IPC: B60C9/20
Filed: 1921-08-15
Abstract: 185,932. Cuppitman, I. Aug. 15, 1921. Air tubes; jackets and covers. - A single-tube tyre comprises in combination an inner lining a, a canvas wall b, a curved steel band c and a tread d. The inner lining a is preferably endless, and may 'be with a lap joint g on the inner periphery.
Patent GB-279980-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F1/00
Filed: 1926-09-03
Abstract: 279,980. Johnson, G. H. Sept. 3, 1926. Tobacco pipes.-In a pipe in which the mouthpiece D carries a partly tubular metal lining or scraper B fitted in the stem portion of the bowl and rotatable for cleaning the stem, the lining B lies normally along the upper part of the bore of the stem and is provided at the end projecting into the bowl with a hole A for the passage of the smoke.
Patent GB-802865-A (GB)
Title: Improvements in or relating to self-propelled compacting rollers
IPC: E01C19/41
Filed: 1957-07-09
Abstract: 802,865. Road rollers. SOCIETE D'ETUDES ET DE RECHERCHES INDUSTRIELLES, SOTREMA. July 9, 1957 [July 10, 1956], No. 21683/57. Class 6(1). A compactor roller mounted on tyred wheels comprises driving wheels 3, 4 mounted on swing arms 5 pivotally mounted on a transverse shaft 6 and adjusted by means of double-acting hydraulic cylinders 12 so that the swing arms may be fixed in any desired angular position or may be free to rock. A movable ballast weight 2 is provided and is longitudinally adjusted by means of a hydraulic cylinder 16. A hydraulic cylinder 14 adjusts the position of a vibrator 13. In a modification ballast is carried in a bucket which forms an integral part of the frame 7. For transport purposes certain wheels in the swing arms may be removed to reduce the overall width of the roller.
Patent GB-597725-A (GB)
Title: Improvements relating to electrical equipment
IPC: H05K7/12
Filed: 1945-08-24
Abstract: 597,725. Switchboards. COSSOR, Ltd., A. C., and LEVIN, A. Aug. 24, 1945, No. 21757. [Class 38(v)] [Also in Group XXXVI] A group board for mounting electrical apparatus comprises a metal board carrying insulating tag supports. The board 11, Fig. 1, has rectangular apertures 13 to receive rectangular insulators which are secured by bending ears 14, partially enclosing one open side of the aperture, after insertion of the insulators. The insulators have undercut slots which engage the sides of the apertures. In a modification, Fig. 4, the insulators 17 are seated in internal apertures 15 which have ears 16 bent from two opposite sides, the ears being then bent into the plane of the board. The insulators 17, Fig. 6, have a cylindrical upper part and a square shank 18 with undercut slots 19, the tags 20 pressing diametrically through the upper part.
Patent GB-1042005-A (GB)
Title: Improvements in or relating to the manufacture of rayon paper and non-woven fabrics from viscose
IPC: D21H13/08
Filed: 1963-05-30
Abstract: Rayon paper or a non-woven fabric is made by dispersing in water staple fibres formed from incompletely regenerated filaments obtained by wet-spinning viscose, said filaments having a "primary swelling value" of 250 to 2400% and a residual gamma value of 2 to 20 and thereafter forming paper or a non-woven fabric from the resulting dispersion.  The "primary swelling value" of the filaments is determined by steeping a known weight of the bone dry filaments in water at 20 DEG C. for 5 minutes, centrifuging the swollen filaments thereby obtained at a centrifugal force of 1000G for 3 minutes and then reweighing the filaments.  The "primary swelling value" is calculated according to the formula (W/WD) 100%, wherein W is the weight of the hydroextracted filaments and WD the weight of the bone-dry filaments.  Incompletely regenerated cellulose suitable for the process of the invention, having a denier of 1 to 10 and a primary swelling value of 250 to 800% may be obtained by spinning viscose into an aqueous coagulating bath containing at least 250g/1 of sodium sulphate, less than 20g/1 of zinc sulphate and less than 30g/1 of sulphuric acid, and which is at a temperature of 10 to 45 DEG C., the filaments being in the bath for from 0.6 to 1.2 seconds and the bath liquor being removed from the filaments by stretching them by from 50 to 150% after their removal from the bath. Alternatively filaments suitable for the process of the invention, having a denier of 1 to 10 and a primary swelling value of 250 to 1900% may be obtained by spinning viscose the cellulose in which has a D.P. value of from 450 to 900 and which viscose has a gamma value of 60 to 100 into an aqueous coagulating bath which contains 30 to 300g/1 of sodium sulphate, 0.1 to 2.0g/1 of zinc sulphate and 3 to 25g/1 of sulphuric acid and which is maintained at 10 to 45 DEG C., the filaments being in the bath for 0.6 to 1.2 seconds and stretched by 150 to 220% after their removal from the bath.  The staple fibres into which the filaments are cut may be from 2mm. to 20mm. in length. Paper and non-woven fabrics may be produced from the aqueous dispersions of the staple fibres by conventional methods. The water swollen fibres passes sufficient bonding power to render it unnecessary to add a binder, such as a synthetic high polymer, to the dispersion prior to making paper or woven fabrics therefrom.
Patent GB-577236-A (GB)
Title: Improvements relating to means for heating drying cupboards
IPC: F26B21/00
Filed: 1944-11-07
Abstract: 577,236. Gas-heaters for drying cupboards. RADIATION, Ltd., and WASS, N. H. Nov. 7, 1944, No. 21864. [Class 64 (i)] [Also in Group XI] A gas-heater, adapted to be located in the lower part of a domestic &c. drying cupbcard, comprises a nozzled tubular burner a, an inner sheet metal chamber c mounted over said burner and having an outlet or outlets d at or near its upper end, and an outer sheet metal chamber e enclosing the inner chamber, said outer chamber being fitted with external sheet metal fins f and provided with gas discharge outlets h opening into a trunk g which extends therealong and is connected to a flue. The heater may be mounted between a pair of end plates k connected by upper and lower pairs of stays l, m, the upper stays supporting front and back plates p and the lower stays being cranked to support the heater itself. The upper end of the heater is preferably held in position by lugs o extending inwardly from the plates k, and a bottom plate s may be secured between the lower edges of the latter.
Patent GB-755378-A (GB)
Title: Preparation of olefinic-aromatic feeds for solvent extraction
Filed: 1954-07-27
Abstract: Reactive dienes and tertiary alkenes are removed from a C5 to C8 aromatic or olefinic concentrate, by first dimerizing cyclic dienes present in the fraction, removing dimers and polymers of cyclic dienes, selectively reacting the remaining reactive dienes and tertiary alkenes in the presence of a small amount of a polymerization catalyst until less than about 10 per cent by weight of the remaining dienes are unreacted, stopping the reaction when less than 20 per cent by weight of the primary alkenes have been reacted, and distilling the remaining unreacted alkene and aromatic components from heavier polymerization products of the tertiary alkenes and dienes.  In a preferred embodiment, a feed stock obtained by cracking a naphtha at a temperature of 538-816 DEG  C. <PICT:0755378/IV(a)/1> was maintained at a temperature of 80-120 DEG C. in a vessel 3 for 4 to 20 hours to dimerize the cyclic dienes and then fractionated in a vessel 5, the dimers being largely removep through line 6 and the distillate, after removal of the water through line 11 is fractionally distilled in column 13 from which the bottoms boiling within the range of 38-130 DEG  C. are fed via line 14 to a polymerization unit containing 0.25 to 2.0 per cent of aluminium chloride with which the hydrocarbon is vigorously agitated for 0.25 to 2.0 hours at - 10 to 70 DEG  C.  The reaction is terminated by adding water or alcohol by line 20 and then washing.  The product is fractionally distilled in column 23, the lightest hydrocarbons including the aromatic products being taken overhead through line 24 and further separated in column 31 to a benzene fraction leaving through line 34 and a toluene and xylene fraction obtained via line 35.
Patent GB-583613-A (GB)
Title: Improvements in tines for harrows and like agricultural implements
IPC: A01B23/02
Filed: 1944-11-08
Abstract: 583,613. Harrow and like tines. BLYTH, L. M. Nov. 8, 1944, No. 21917. [Class 6 (i)] A tine used in agricultural implements comprises a metal bar 1, bent at right angles to form two parts 2 either of which may be used as the tine. The shank part is held between channeled frame members 4, 5 by bolts 6 so that the tine part protrudes through holes in the lower bar 4. The frame members are spaced by members 7.
Patent GB-718718-A (GB)
Title: Garments adapted to act as bathing screens or the like
IPC: A41D7/00
Filed: 1951-09-18
Abstract: 718,718. Bathing screens. SHERSON, S. A. Dec. 18, 1952 (Sept. 18, 1951], No. 21919/51. Class 20 (1) A sleeveless garment which acts as a screen for changing clothes in, comprises a piece of cotton towelling 1 adapted to envelope the wearer from the shoulders to the feet, the garment being so formed that when worn it provides a top aperture 2 for the neck and a bottom aperture 3 for the feet, the garment having a collar 6 surrounding the aperture 2. The collar 6 is formed by the centre part of a scarf 5 secured to the piece 1. The aperture 2 may be elastically extensible, and the aperture 3 may be stiffened, e.g. by a collapsable. hoop. A slit extends downwardly of the aperture 2, e.g. the full length of the garment, and may be closed by a zip-fastener 4, or by press studs or buttons.