baber/WOPTO huggingface dataset:
Patent GB-1204299-A (GB)
Title: Tracing machine
Inventor: HATEM LEON RAOUL
IPC: B43L13/10
Filed: 1969-05-05
Abstract: 1,204,299. Pantographs. L. R. HATEM. 5 May, 1969 [8 May, 1968], No. 22770/69. Heading B6P. A reproducing pantograph comprises a cylindrical guide rail 1 for a movable carriage 2. Arms 8 and 11 are secured rigidly to the carriage 2 by nuts 10 and 13 in slots 9 and 12 respectively. A slide 17 pivoted at 18 to arm 8 slidably receives a first element in the form of an arm 14 which can be locked by a screw 33. A second element or arm 23 is similarly adjustably mounted and pivoted to arm 11. The arms 14 and 23 receive at 15 and 24 respectively the tracing tool and/or making instrument. A transverse coupling bar 20 is pivoted to both arms 14 and 23. The slide 19 pivoted at 31 to the arm 14 allows adjustment of the effective length of the coupling bar 20, so that by releasing nuts 10, 13 and 22 adjustment of the separation of the arms 14 and 23 with respect to each other and the rail 1 is possible. Screw 33 and nut 27 can be released to permit adjustment of slides 17 and 26 along their respective arms, for altering the reproduction ratio.
Patent GB-721661-A (GB)
Title: Improvements in power transmission systems particularly applicable to the fire-control of guns
Inventor: ABBINK-SPAINK JOHANN HERMANN
IPC: G08C15/04
Filed: 1939-06-09
Abstract: 721,661. Electric control systems. VICKERSARMSTRONGS, Ltd. July 5, 1940 [June 9, 1939], No. 22799/47. Divided out of 606,877. Class 40 (1).  In a selsyn repeater system the controlled load is driven by a swash-plate hydraulic amplifier, which is itself controlled through an electric motor from the Selsyn receiver. Both rate control and follow-back signals are developed. As shown, the load shaft 111 is driven by the electric motor 12 through the hydraulic swash-plate amplifier 14 and the motor armature is energized through thermionic amplifier 7 from the coarse and fine Selsyns 1, 5 and 2, 6 in accordance with the movement of director 1<SP>1</SP>. The motor of Selsyn 6 is coupled to rota 12 and to the serrated disc 16 which, in combination with a lamp and P.E. cell produces a D.C. voltage proportional to the load speed which is applied to an auxiliary field of motor 12. A mechanical feed-back from 14 is effected through shaft 127 to the casing of selsyn 6 in proportion to the lag between the input and output shafts of 14. Specifications 625,244, [Group XXIX], and 606,876 are referred to.
Patent GB-213504-A (GB)
Title: Improvements in heating attachments for intake-pipes of internal combustion engines
IPC: F02M31/093
Filed: 1923-09-11
Abstract: 213,504. Wilcox, H. S. Sept. 11, 1923. Angle - pieces; branches and mains, connecting. -An exhaust pipe 25 is fixed to the exhaust manifold 11 of an internal combustion engine by an elbow 20 of malleable iron which has an enlargement 22 which grips a hole 19 on insertion by hammering a projection 24. It becomes firmly fixed when heated by the exhaust gas.
Patent GB-387399-A (GB)
Title: Improvements in engine starting apparatus
IPC: F02N99/00
Filed: 1931-08-13
Abstract: 387,399. Turning-gear. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange. New Jersey, U.S.A. Aug. 13, 1931, No. 22862. Convention date, Aug. 26, 1930. [Class 7 (v).] In an engine starter in which a fluid-pressure motor drives a clutch member 62 movable into engagement with an engine member 64 and the pressure of fluid admitted to the device actuates means for effecting engagement of the clutch members 62, 64 and admitting fluid to the motor, the automatic disengagement of the clutch on the starting of the engine operates said means to cut off fluid from the motor. As shown, the fluid-pressure motor comprises radial cylinders 9 and drives a crank-shaft 14, 15. Channels 27, 25 leading to ports 26 in cylinder linings 10 are connected alternately to a fluid-supply passage 28 and to an exhaust opening 29 by grooves 35, 36 in the part 15 of the crank-shaft. The clutch member 62 is driven from the crank-shaft 14, 15 by a pinion 38 driving a gear 37 splined to a hollow shaft 40 and formed integral with a sun gear 46 ; planet gears 47 supported on the endplate 54 of a driving barrel 55 engage the sun gear 46 and a stationary ring gear 48 mounted on the casing 3, and the barrel 55 is connected by an adjustable multiple-plate clutch 65 to a bushing 66 splined to the member 62. The clutch 65 slips in case of backfire. An oil sealing member 70 fitted with a leather washer 71 is provided. The clutch member 62 is moved into engagement with the engine member 64 by means of a rod 72 passing through the hollow shaft 40 and provided with a piston 74 acted upon by a spring 79 and by the pressure fluid admitted by the supply pipe to the part 78 of the supply passage 28. The movement of the piston 74 brings a port 77 into register with a passage 28, through which the pressure fluid is then admitted to the starting motor. When the engine starts, the member 61 is disengaged by the inclined faces of the jaw clutch 62, 64, aided by the spring 79, and the pressure fluid is cut off from the passage 28 and the starting motor by the movement of the piston 74. The starting motor may be assisted by a hand crank acting on the shaft 40 through bevel gears 88, 89, and a starting magneto 84 may be driven from the gear 37 through a pinion 87.
Patent GB-981637-A (GB)
Title: Variable geometry system and apparatus for aircraft
IPC: B64C3/42
Filed: 1962-06-14
Abstract: 981,637. Boundary layer control. A. ALVAREZ-CALDERON. June 14, 1962 [June 15, 1961], No. 22877/62. Heading F2R. [Also in Division B7] In an aircraft wing which folds about a chordwise axis to form a wing of reduced span and increasing thickness, the fixed part 66, Fig. X, has a leading edge slotted flap 68 supported from a bracket 67 and having a trailing edge boundary layer blowing manifold slot 71. The folding part 73 receives the bracket 67 when folded, as shown. In another form of folding wing, Fig. XVIII, each part has corrugations 149 complementary to corrugations on the other part, and in the unfolded position, the wing contour is completed by inflation of an inextensible flexible surface 145 anchored at one edge to a flap 159. The wing is pressurized by a ram scoop 161 or from a source of pressure on the aircraft, and a boundary layer blowing slot 157 is provided. The flap 159 has a slot 152. Various other configurations of inflatable covering attached to a trailing edge flap are described, covering and flap having slots or apertures.
Patent GB-1381148-A (GB)
Title: Car coupler
IPC: B61G3/06
Filed: 1972-05-16
Abstract: 1381148 Rail vehicle couplers MIDLANDROSS CORP 16 May 1972 [21 May 1971] 22976/72 Heading B7T A Janney tyre railway vehicle coupler comprises a head 10, a knuckle 12 pivoted to said head and movable between a closed position and an open position, said head having a lock receiving chamber 16, a lock 18 in said chamber for locking said knuckle in the closed position, a knuckle thrower 36 whereby said lock is movable out of a locking position to actuate said thrower to effect opening of said knuckle, a front wall 38 and a top wall 56 bounding said chamber, a fulcrum shoulder 40 extending rearwardly from said front wall, said lock having a body portion 20, a fulcrum lug 20a extending forwardly from the lower end of said body portion and being engageable with said shoulder to enable said lock to fulcrum during actuation of the lock to open the knuckle, said lug having a cylindrically curved front face merging with a curved upper surface thereon, said curved face during said actuation of the lock engaging said front wall as said upper surface on the lug moves into contact with the underside of said shoulder, and said body portion having a front face portion 20c in confronting relation with the rearward surface of said shoulder, said curved face being disposed forwardly of said front face portion an amount such that when said face is in engagement with said front wall, said front face portion is spaced rearwardly of the rearward surface of said shoulder. The curved front face may extend the full width of the lug. After a predetermined amount of fulcruming of said lock the top forward edge of the lock body portion engages the top wall 56 and further fulcruming takes place about this point of contact.
Patent GB-480275-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/52
Filed: 1936-08-20
Abstract: 480,275. Cathode-ray tubes ; electron multipliers. BAIRD TELEVISION, Ltd., JOHNSTONE, D. M., and SZEGHO, C. Aug. 20, 1936, No. 22981. [Class 39 (i)] The beam in a cathode-ray tube is modulated in intensity, amplified by impact with one or more flat, foramin ated secondary. emitting electrodes and thereafter deflected over a luminescent screen. As shown, a series of mesh multiplying electrodes 3 is arranged between the modulator 2 and the lens 4, the latter focusing the stream on an apertured diaphragm 6. A received television signal may be applied to the electrode 2 directly. The cathode 1 may be photo-electric or thermionic. The beam may be concentrated electromagnetically.
Patent GB-1348409-A (GB)
Title: Debonded cellulose fibre pulp board and method of producing the same
IPC: D21H17/07
Filed: 1971-04-19
Abstract: 1348409 Board RIEGEL TEXTILE CORP 19 April 1971 [25 Nov 1970] 22988/71 Heading D2B A cellulosic fibrous board is impregnated with an admixture of a cationic surfactant having at least one alkyl or alkenyl group containing at least 12 C atoms and a natural oil in order to debond the fibres. The admixture may be added to the pulp slurry before board formation or to the wet board before drying. The cationic surfactant may be a quaternary ammonium salt and the oil may be a mineral oil, peanut oil, cottonseed oil, lard oil or whale (sperm) oil.
Patent GB-1499215-A (GB)
Title: Catalysis of amine curable polymers by high dielectric constant compounds
IPC: C08G18/00
Filed: 1975-05-23
Abstract: 1499215 Curing amine curable polymers FIRESTONE TIRE & RUBBER CO 23 May 1975 [5 June 1974 12 Aug 1974] 23003/75 Heading C3R Amine curable polymers or prepolymers selected from (a) urethane containing free isocyanate groups, epoxy resins, polymers containing acid halide or haloformate groups and polymers containing acid anhydride groups or (b) halogen-containing hydrocarbon polymers, chlorosulphonated polymers and organopolysiloxanes are cured with a curing agent in amounts of 100 parts of polymer or prepolymer and in the case of group (a), 0À8 to 1À2 equivalents based on diamine of curing agent and in the case of group (b) 0À0005 to 0À05 equivalents based on diamine of curing agent based upon the active groups of the polymer or prepolymer, the curing agent being selected from a complex of 4,41-methylene dianiline and a salt selected from the chlorides, bromides, iodides and nitrates of sodium and lithium and sodium cyanide and a complex of racemic 2,3-di(4- aminophenyl)butane and a salt selected from the chlorides, bromides and iodides of sodium, potassium, rubidium and cesium, the ratio of the dianiline or butane to the salt in the complex being 3 moles per mole, and from 0À1 to 35 parts of a catalytic compound having a dielectric constant of at least 2À0 and a relatively slow reaction rate (defined) with amines and isocyanates and being selected from tributyl phosphate (preferred), triethylphosphate, tributyl phosphite, oleic acid, dimethyl sulphoxide, dodecyl mercaptan, benzaldehyde, adiponitrile, nitrobenzene, cyclohexanone, N,N<SP>1</SP>-dimethylbenzylamine, acetic anhydride, a low M.W. epichlorohydrin/bisphenol adduct, a low M.W. polyester resin containing a black pigment therein, polydimethylsiloxane, pyridine, diethyl sulphate and dimethylformamide. Most preferably the polymer or prepolymer is a urethane prepolymer containing free isocyanate group and the complex is one of 4,41-methylene dianiline and sodium chloride or lithium chloride. Curing is preferably conducted at a temperature of from 80‹ to 140‹ C.
Patent GB-307688-A (GB)
Title: A method of and means for producing perforated or hollow articles
IPC: B21H1/04
Filed: 1928-08-10
Abstract: 307,688. Im Schlaa, F. July 12, 1928, [Convention date]. Hoops and rings.- In rolling annular bodies from perforated blanks metal is displaced radially outwards from the inner walls of the opening. The outside diameter is unaltered the work being confined in a ring or matrix. In this manner a cupped blank having a rounded, corner b, Fig. 1, is converted into the square cornered form shown in Fig. 2 by enlarging the bore c to the dimensions required in the finished article.
Patent GB-742427-A (GB)
Title: Improvements in and relating to driving belts
IPC: F16G1/24
Filed: 1953-08-22
Abstract: 742,427. Belts. WHITTLE, O. L. July 23, 1954 [Aug. 22, 1953], No. 23195/53. Class 80(1) A flat driving belt is made up of flexible strips of leather, woven fabric or the like 10 arranged side by side sandwiched at their ends by similar strips and joined thereto by flat transverse metal ties 11 with securing screws or cotters 12 or 13.
Patent GB-521188-A (GB)
Title: Improvements in and relating to processes and apparatus for the transfer of heat of hot wood sugar worts
IPC: C13K13/00
Filed: 1938-08-05
Abstract: 521,188. Progressive evaporators. SIEDEL, M. Aug. 5, 1938, No. 23214. Convention date, Aug. 6, 1937. [Class 32] In the Scholler wood saccharification process the hot sugar worts are cooled and partly evaporated by reducing the pressure on the wort in stages, and the water necessary for the percolation operation is heated by condensation of the vapours obtained -in the individual expansion stages. The hot sugar wort leaving the percolators under pressure enters an expansion vessel A by a pressure-reducing valve 1 and is cooled to 133‹C. and 3 atm., the vapours evolved passing out through a valve 2 for use for heating purposes. The wort passes on through successive expansion vessels B, C, D, in each of which the temperature and pressure are lowered. The vapours evolved pass by pipes 4, 6, 8 to condensers E, F, G, through which flows the feed water for the percolation stage. entering through a condensate cooler H and leaving by a pipe 11. Pumps J, K maintain the vacuum necessary. Where two kinds of wort are produced by the percolation operation additional expansion vessels such as B<SP>1</SP> may be provided.
Patent GB-442730-A (GB)
Title: Improvements in or relating to the manufacture of dyestuff intermediates
Filed: 1934-08-13
Abstract: Arylmercaptans are obtained by condensing benzene or its alkyl-, halogen- or alkyl-halogen-derivatives with sulphur dioxide and aluminium chloride, and reducing, without isolating, the aluminium complex compound obtained, with an acid reducing agent. The products, in which the SH group takes up a position pto the halogen atom, are converted into thioglycollic acids by means of the usual condensation with chloracetic acid.  According to examples 1 : 4-dimethyl-2-chlorobenzene reacts with SO2 and aluminium chloride to give the sulphinic acid addition product, which is reduced with zinc and hydrochloric acid to give 1 : 4-dimethyl-2-chlorbenzene - 5 - mercaptan, which may be isolated or converted with sodium chloracetate into 1 : 4-dimethyl-2-chlorobenzene-5-thioglycollic acid; 1 - methyl - 3 - chlorobenzene is similarly converted into the 6-sulphinic addition product, the 6-mercaptan and finally 1-methyl-3-chloro-6-thioglycollic acid.
Patent GB-1501516-A (GB)
Title: Method and composition for suppressing nitrification of ammonium nitrogen in soil
IPC: C05G3/90
Filed: 1975-05-28
Abstract: 1501516 Inhibiting nitrification in soils IMPERIAL CHEMICAL INDUSTRIES Ltd 19 May 1976 [28 May 1975] 23340/75 Heading C1B Soil, which has been, is being, or will be, treated with an ammonium nitrogen, or ammonia releasing, fertilizer, is treated with one or more nitrification inhibiting compounds, i.e. trithiocarbonates (X 2 CS 3 ) or xanthates (XS, CS, OR) where X is Na, K, or NH 4  and R is alkyl. A fertilizer composition comprises the fertilizer in admixture with the nitrification inhibitor.
Patent GB-1412157-A (GB)
Title: Alkyl aryl methoxybenzoate and liquid crystal compositions containing it
IPC: C09K19/46
Filed: 1973-05-16
Abstract: 1412157 Liquid crystal compositions THOMSON-CSF 16 May 1973 [19 May 1972] 23431/73 Heading C4X [Also in Division C2] A nematic liquid crystal composition comprises at least one compound of the formula wherein R is alkyl. The composition may contain in addition a compound of the formula The compositions may be employed in optical display or indicator devices.
Patent GB-1341300-A (GB)
Title: Controlled insertion force receptacle for flat circuit bearing elements
IPC: H01R12/88
Filed: 1971-04-19
Abstract: 1341300 Two part couplings BUNKER RAMO CORP 19 April 1971 [13 April 1970] 23440/71 Heading H2E In an edge connector assembly the printed circuit board 18 is inserted into a slot 16 and spring contacts 22 are then permitted to move forward to press against the edge contacts 20 on the board by rotating a cam-shaft 38 thus allowing the block 24 to slide forward over the block 10. Flanges 32 on one block, 24, co-operate with slots 36 on the other block 10, and both blocks are of insulating material. The cam-shaft is metallic and the head 40 prevents side insertion of the board when the spring contacts are forward. The spring contacts are normally biased forward with their tips 30 pressing forward against flange 28, but they may also be biased away from the board and pushed forward. Light wiping contact is possible when they are partly forward. The arrangement may be duplicated to provide similar contacts with both sides of the board.
Patent GB-755697-A (GB)
Title: Process for roasting sulphide-bearing solids
Inventor: JUKKOLA WALFRED WILHELM
IPC: C22B1/10
Filed: 1954-08-12
Abstract: In the continuous fluidized roasting of sulphide ores, e.g pyrite, by means of a stream of free-oxygen containing gases, the temperature is controlled by passing cooled sulphur dioxide-bearing product gases, (e.g. a portion of the total product gases cooled in a waste heat boiler for the production of steam) over the surface of the bed, preferably by passing the gases into a freeboard space above the bed at a point immediately above the fluidized bed.  The product gas is dry and concentrated and may be used for the manufacture of sulphuric acid.  In the roasting of iron pyrite a temperature of 900-1000 DEG C. may be maintained using a manifold with a plurality of tuyeres surrounding the reactor immediately above the surface of the bed. The freeboard roasting of fines should be kept to a minimum and it is not contemplated to add oxygen to the recycled gas although it may be present therein.
Patent GB-222657-A (GB)
Title: Improvements in and relating to the pivoting arrangements of the windscreens of vehicles
IPC: B60J1/20
Filed: 1923-09-20
Abstract: 222,657. Johnson, F. A. L. Sept. 20, 1923. Wind and like screens. - In screens with pivotally mounted side panels the connecting links are rotatably mounted at both ends on the frame uprights 6 carrying the panels, the upper links 7 being secured at one end by a nut 8 with a shank 8<b> which, when the nut is screwed down, engages within a slot 6b in the link. In the arrangement shown in Fig. 3, the upper and lower links are integral with a metal strip 10 t'hat serves to cover the gap between adjacent panels.
Patent GB-1437472-A (GB)
Title: Operation of mercury-cathode cells
IPC: C25B1/36
Filed: 1973-05-17
Abstract: 1437472 Mercury cathode cells IMPERIAL CHEMICAL INDUSTRIES Ltd 26 April 1974 [17 May 1973] 23536/73 Heading C7B Build up of thick Hg deposits (Hg "butter") on a brine cell base-plate is reduced by dispersing intermittently or continuously in the flowing amalgam at one or more stations along the flow line thereof, water or an aqueous medium, without interrupting electrolysis. The electrolyte may be the liquid dispersed, e.g. by providing an inclined baffle, a roller or an electromagnetic ultrasonic transducer across the electrolyte/amalgam interface. If the latter is used, the transducer may be outside the cell and be provided with a row of rods which are dipped into the cell through the lid, allowing a single transducer to service a plurality of cells. Alternatively, dispersion may be achieved by jetting water or brine against or below the amalgam surface, or by dispersing these liquids in Hg returning to the cell from a denuder. In the latter case, inherently wet Hg from the denuder may be tapped off from the main recycle line and injected downstream in the cell. Additional water or brine may be incorporated in this Hg by injecting it at the Hg recycling pump or by passing either the main recycle stream or the tapped off portion thereof through a mechanical emulsifier.
Patent GB-694091-A (GB)
Title: Improvements in multi-channel carrier telephone systems
IPC: H04J1/08
Filed: 1947-08-26
Abstract: 694,091. Carrier transmission. PUNCH ENGINEERING PTY., Ltd. Aug. 26, 1947 [Sept. 10, 1946], No. 23546/47. Class 40 (iv). In a single sideband multichannel carrier current telephone system transmitting a similar sideband in each of the contiguous channels, the filter economy obtained by a low signal bandwidth to carrier spacing ratio is increased by transmitting the carrier wave, so that the suppression of the lower signal frequencies in the unwanted sideband is not essential. Curves 7-9 and 16-18, Figs. 1 and 2, show the attenuation desirable to suppress unwanted energy from the adjacent band and the dotted curves show attenuation due to normal band. pass and low-pass filters in two channels in which the sidebands 1 and 3 obtained by modulating the carrier currents of frequency Sand R respectively are transmitted. Similar attenuation-frequency curves, Fig. 3, for a system using a lower signal bandwidth to carrier spacing ratio show that little filter economy is achieved since the unwanted sideband at the lowest signal frequency, i.e. point 31, must still be suppressed. The characteristic 34, Fig. 4, of the filter necessary in a system transmitting the carrier currents together with the signal sideband shows that considerably less attenuation is required in the region of point 31 and obviously appreciable filter economy is effected.
Patent GB-1144182-A (GB)
Title: Light intensity redistribution
Inventor: KREUZER JUSTIN LLOYD
IPC: G02B13/00
Filed: 1966-05-26
Abstract: 1,144,182. Optical systems. PERKIN-ELMER CORP. May 26, 1966, No. 23677/66. Heading G2J. A beam of coherent light having a predetermined intensity distribution and a predetermined equiphase surface is produced by passing a beam of coherent light having a different intensity distribution along optical paths in an optical system having an optical surface which redistributes the rays to alter the intensity distribution and at least one optical surface spaced from the first surface which redirects the redistributed rays to their original direction. Light source 10, e.g. a gas type laser emits a continuous beam of light having a planar wavefront. The optical system has lens 12, 13 spaced along optical axis 14. The surface 17 redistributes the rays 11 into a beam of substantially uniform intensity while the surface 18 forms the planar wavefront. Data and formulae are given for calculation of the radii of the surfaces 17, 18.